CN102143895A - Spout member and packaging bag utilizing same - Google Patents

Abstract

The object of the present invention is to provide a spout member and a packaging bag using the spout member, wherein the packaging bag has excellent performance in handling and hygienic management, and is convenient for feeding water or pharmaceuticals, etc. Supplement water from the outside before use and in the middle of use; the packaging bag can protect a locking mechanism from being attached to the contents during storage or transportation, wherein the locking mechanism is used to open and lock an opening, The opening is formed by partially cutting out the peripheral portion of the sealed film, and the protection performance is excellent even when there is pressure inside the packaging bag; the spout has excellent pollution prevention before and after it is unsealed It is non-toxic and easy to handle after being opened.

Description

Spout parts and bags using the spout parts

technical field

The present invention belongs to a packaging bag, especially a packaging bag for containing trans-pipe enteral nutrition and trans-intestinal flow food, and a packaging bag for unsealing by cutting off part of the periphery of the sealed film to form an opening , or a spout part that includes a spout for pouring out the contents and attaches it to a packaging bag, and a packaging bag using the spout part.

Background technique

Trans-intestinal nutritional supplements (hereinafter sometimes referred to as nutritional supplements) and trans-intestinal flow food (hereinafter referred to as liquid food) are used in various packaging containers such as cans, paper containers, pouches, bottles, etc., among which pouch type Packaging bags are widely used due to their excellent airtightness and easy handling. Among them, the pouch type generally has an outlet, which is fed by connecting a hose to the outlet, especially if it is nutrition and liquid food, it needs to be diluted according to the patient's condition when it is used for the first time, and it usually needs to be supplemented after stabilization medicine or water. In view of the above situation, there is a known packaging bag in which separate parts such as molding parts are installed in the peripheral part of the packaging bag in advance as injection ports (refer to the following patent document 1), but this leads to an increase in costs such as materials and installation, and due to the There are separate parts in the part, especially if the diameter of the injection port is large, when the packaging bags are piled up, there will be problems such as increased volume and difficult operation, so the structure of cutting the part of the packaging bag to form the injection port is widely used (refer to the following patent documents 2).

However, the above-mentioned structure of forming the injection port by cutting off a part of the packaging bag is not easy to stably hold the pouch if there is no reliable holding mechanism required for handling the pouch in the state where the liquid content is contained, and It is also difficult to carry out the operation of cutting off the part of the pouch and the operation of replenishing water or medicine. There may be problems such as dropping the packaging bag, tilting the packaging bag and spilling the contents, and the injection port may be contaminated or opened due to touching the inside of the packaging bag. When the opening is too large, etc., problems in hygiene management occur.

Due to the locking mechanism such as the snap seal (chuck seal) provided in advance at the opening, it may be disengaged by the internal pressure of the contents during storage or transportation, or the contents may adhere to the meshing part and cause incomplete meshing, or the contents The content may be contaminated. To solve the above problems, someone has developed a packaging bag with an easy peel. Peel off (refer to the following patent applications 3, 4).

In the past, this type of easy-peelable part was formed by joining the films constituting the packaging bag with a peel seal. However, the easy-peelable part was peeled off due to internal pressure in the packaging bag during storage or transportation, such as dropping, so it could not be achieved. expected result.

In addition, there is known a packaging bag in which an easy-peelable portion is provided at the portion where the opening is formed, the purpose of which is to prompt unsealing by peeling the easy-peelable portion or to prevent the internal pressure from being reduced due to the rupture of the easy-peelable portion (refer to the following patent application 5, 6), the purpose is not to prevent the easy-peelable part from being peeled off by the internal pressure inside the packaging bag.

In addition, in order to facilitate the pouring of the contents, packaging bags in which separate parts such as molded parts are previously attached to the peripheral portion of the packaging bag as spout parts are widely used. If the spout part is exposed to the outside of the packaging bag before opening during transportation and storage, etc., it may be contaminated by exposure to outside air and dust, and H2O, O2, etc. may enter from the spout part, resulting in vitamin contamination of the contents. Oxidation and deterioration due to damage, etc. Since problems are likely to occur in terms of sanitation management or quality control, there is known a method in which a spout member is internally sealed between films (see Patent Documents 7 and 8 below).

However, the spout part of the packaging bag described in the following patent documents may touch the vicinity of the spout with fingers or the like when unsealing, and although the spout part can be resealed after unsealing, it must be taken out from the separated film Use, its convenience of operation and anti-pollution all have problems.

In addition, when it is sealed in a packaging bag, its spout part is easy to move, and it is easy to be damaged by external impact and the like. Reference Technical Literature Patent Literature

Patent Document 1: (Japanese) Patent Application Publication No. 2008-105696 Patent Document 2: (Japanese) Patent Application Publication No. 2005-206221 Patent Document 3: (Japanese) Patent Application Publication No. 2005-154017 Patent Document 4: (Japanese) Patent Application Publication No. Patent Document 5: (Japanese) Patent Application Publication No. 2006-315760 Patent Document 6: (Japanese) Patent Application Publication No. 2002-225889 Patent Document 7: (Japanese) Patent Application Publication No. 10-305850 8: (Japanese) Japanese Patent Application Publication No. 11-130153

Contents of the invention

Problems to be solved by the present invention

The present invention relates to a spout member and a packaging bag using the spout member. The opening of the packaging bag is formed by cutting off part of the peripheral portion of the sealed film for unsealing. The purpose of the present invention is to provide a The locking mechanism for opening and closing the opening is protected from the contamination of the contents during transportation or during transportation, and the protection performance is still excellent when the interior of the packaging bag is subjected to internal pressure, and the packaging bag is in terms of handling and hygienic management It has excellent convenience, and when feeding water or medicine, etc., it is convenient to replenish water from the outside before and after use and in the middle of use. The spout portion has excellent contamination resistance both before and after it is unsealed, and is easy to handle after it is unsealed.

Technical solution to the problem

In order to solve the above-mentioned problems, the technical means of the present invention has the following configurations.

(1) A packaging bag formed by sealing a plurality of peripheral portions of a film, the peripheral portion having an injection portion and an injection portion; , an opening is formed by the unsealed part, and the opening is unsealed to form an injection port; at least two holes are formed on both sides of the peripheral part near the injection part and the injection port part, and the holes are both hangable packaging bags. The unique hanging mechanism is also a holding mechanism that can be held by fingers.

(2) The packaging bag according to (1), wherein in the injection part, the rigidity of a connecting line forming both sides of the injection port part and connecting the hole is set higher than that of the remaining part.

(3) The packaging bag as described in (2), is characterized in that, in the injection part, the line part that forms both sides of the injection port part and connects the hole forms a linear engaging part that can be opened and locked. .

(4) The packaging bag described in any one of (1) to (3) is characterized in that the hole is a circular or substantially circular hole with a diameter of 8 to 30 mm.

(5) The packaging bag described in any one of (1) to (3) is characterized in that the structure is that a part of the peripheral part of the hole is reserved, and the reserved peripheral part forms a stitch hole or a half-cut hole. When in use, the seam is pinholed or half-cut through and ruptured to form a hole in which the film is partially connected to the main body of the packaging bag.

(6) The packaging bag according to any one of (1) to (3), which is characterized in that the hole is in the shape of a slit with a length between 30 mm and 60 mm.

(7) The packaging bag according to any one of (1) to (6), which is characterized in that the film around the hole is not sealed.

(8) The packaging bag according to any one of (1) to (3), which is characterized in that when the hole is used as a holding mechanism that can be held by fingers, the upper edge part is in a shape that protrudes downward. .

(9) The packaging bag according to (8), which is characterized in that the film on the upper edge of the hole is not sealed.

(10) The packaging bag according to any one of (1) to (9), which is characterized in that when at least one of the holes is used as a hanging mechanism for hanging, the outlet part Arranged in an approximately vertical downward direction.

(11) A packaging bag, which forms a storage portion by sealing the peripheral portion of one or more films, and forms an opening for unsealing from the unsealed portion by cutting off part of the peripheral portion of the sealed film. In that, the opening includes a locking mechanism that extends across the entire width of the opening and can be opened and locked, and an easy-to-peel portion, wherein the locking mechanism is composed of first and second parts that engage with each other, The easy-to-peel portion extends across the entire width of the opening; the easy-to-peel portion isolates the locking mechanism from the receiving portion before being unsealed, and the opening is unsealed by peeling off the easy-to-peel portion when unsealed ; Wherein, the upper part of the first base member provided with the first member and the upper part of the second base member provided with the second member are respectively bonded to the inner sides of the films which form the opening and face each other. The locking mechanism; and, wherein the lower end of one of the base parts is set longer than the other base part, and the lower end is joined with the opposing film through an easy-peel seal to form an easy-peel part.

(12) The packaging bag according to (11), wherein the first and second base members are not exposed to the outer edge of the seal portion formed by sealing the peripheral portion of the film.

(13) The packaging bag described in (11) or (12) is characterized in that the locking mechanism is a snap-fit seal, wherein the snap-fit is formed by the first part of the convex head and the second part of the female head , the first part of the protruding head protrudes from the sealing base.

(14) The packaging bag as described in (13), which is characterized in that, in the locking mechanism, the cross section of the front end of the first part of the convex head perpendicular to the long side direction is set to an elliptical shape; the front end of the second part of the concave head The concave part of the cross-sectional shape perpendicular to the longitudinal direction is set to be approximately the same as the cross-sectional shape of the front end of the first part; and when the first and second parts are engaged, only the front end of the first part near the base of the first part A gap is formed between the portion and the front end portion of the second member.

(15) The packaging bag according to any one of (11) to (14), which is characterized in that an easy-opening portion for easily cutting off the peripheral portion of the film is provided at the portion where the opening is formed, and the easy-opening portion is The portion is formed so that the positions where the unsealed end is cut off by the easy-to-open portion are different on the two films.

(16) The packaging bag according to any one of (11) to (15), which is characterized in that a spout portion is provided on the peripheral portion of the sealed film.

(17) A spout member comprising a sprue part, a sealing part, and a cover part, wherein the spout part is composed of a base and a cylindrical part protruding from the base, and the sealing part can The broken fragile part seals the front end of the barrel; the fragile part is broken by screwing the cap so as to separate the sealing part and the cap from the injection part, and at the same time the front end of the barrel is unsealed to form a spout, which The feature is that the cap part has a shape covering the entire cylinder part, and the cap part and the pouring part are equipped with a locking mechanism capable of locking the cap part to the pouring part.

(18) The spout member according to (17), which is characterized in that a plurality of annular protrusions for locking the hose are provided on the outer surface of the cylindrical portion of the spout.

(19) The spout member according to (17) or (18), wherein the cap can reseal the spout.

(20) The spout member according to any one of (17) to (19), wherein the fragile portion is formed of a thin portion having a thickness of 0.15 mm to 0.2 mm.

(21) A packaging bag comprising a container formed by a first sealing portion sealing a peripheral portion of one or more films, the peripheral portion being provided with a spout member sealing portion, wherein the spout member For the sealing part, arrange (17) the spout part between the two films constituting the packaging bag in a state where the cylinder part of the spout part protrudes from the receiving part, and fix the base of the spout part to the Between the films of the first sealing part; and the outlet member, so that the cover part is sandwiched between the films, and the cover part is sealed by the second sealing part sealing between the films around the cover part. Forming; cutting off the front end side of the base of the spout member and the film constituting the sealing portion of the spout member, and unsealing the spout by simultaneously screwing the film and the cover of the spout member together, thereby removing the cover from the The injection part is separated.

(22) The packaging bag according to (21) is characterized in that it is provided with an easy-open portion for cutting off the film that is located at the front end side of the base of the spout member and constitutes the spout member sealing portion.

(23) The packaging bag described in (21) or (22) is characterized in that the easy-opening portion has a curved shape such that after cutting off the easy-opening portion, the middle portion of the unsealing end is lower than the opening position and The end unsealing position is closer to the base of the spout.

(24) The packaging bag according to any one of (21) to (23), wherein the easy-open portion is provided at a position closer to the front end than the hem portion of the lid portion.

(25) The packaging bag according to any one of (21) to (24), wherein the peripheral portion of the sealed film is provided with an injection portion.

(26) The packaging bag according to any one of (1) to (25), which is characterized in that it is used for feeding through the intestines or for feeding through the intestines. Beneficial effects of the present invention

According to the packaging bag of the present invention, at least two holes are formed in the peripheral part near the injection part and on both sides of the injection port part. The holes are not only a hanging mechanism for hanging the packaging bag, but also a holding mechanism for handling the packaging bag. , when feeding water or medicaments are replenished from the outside before and after use and in the middle of use, the packaging bag can be stably maintained so that it is easy to perform the cutting operation, which is very convenient for operation and hygienic management; The lower end is engaged with another opposite film, which isolates the locking mechanism for opening and closing the opening from the contents before being unsealed, thus protecting it from the contents during storage or transportation. contamination, etc., so it has excellent hygienic management and is easy to handle; and even when the inside of the packaging bag is subjected to internal pressure, its structure makes the easy-to-peel part not easily subject to the pressure that causes the lower end of the base member to be peeled off, so it has excellent Pressure resistance. In addition, since the above-mentioned protective properties and pressure resistance can be easily realized by using a base member equipped with a locking mechanism, it is easy to manufacture and has excellent cost performance. The lid of the spout can also be covered after unsealing, so it has excellent anti-pollution and easy handling when unsealing and after unsealing; It has excellent hygienic management and quality control before opening, and the sealing part of the sealed spout has excellent damage resistance, and it has excellent anti-pollution performance because it does not come into contact with the spout parts during unsealing.

Description of drawings

Fig. 1 shows a front view of a packaging bag according to an embodiment of the present invention. A-A sectional view of the packaging bag shown in the figure. Fig. 3 is a schematic diagram of the state of pouring out the content in the hanging state in the packaging bag shown in Fig. 1 . Fig. 4 is a schematic view of the state where the injection part is unsealed in the packaging bag shown in Fig. 1 . Fig. 5 is an enlarged view of another embodiment of a hole in the present invention. Fig. 6 is an enlarged view of another embodiment of a hole in the present invention. Figure 7(a)-(d) is an enlarged view of another embodiment of the hole in the present invention; Figure 7(e) is formed after the needle hole or half-cut hole in Figure 7(a)-(d) is broken A zoomed-in view of the hole state. Fig. 8 is an enlarged view of another example of the opening mechanism of the present invention. Fig. 9 is a front view of another embodiment of the packaging bag of the present invention. Fig. 10 is a front view of another embodiment of the packaging bag of the present invention. Fig. 11 is a front view of another embodiment of the packaging bag of the present invention. Fig. 12 is a front view of another embodiment of the packaging bag of the present invention. Fig. 13 is an enlarged view of the hole in the packaging bag shown in Fig. 12 . Fig. 14 is a front view of a packaging bag according to an embodiment of the present invention. The structural schematic diagram of the X-X section of the packaging bag shown in FIG. 14 . Fig. 16 is an enlarged view of an opening portion formed during unsealing in the packaging bag shown in Fig. 14 . Fig. 17 is a cross-sectional view showing an engagement seal structure of an embodiment of a lock mechanism. Fig. 18 is a diagram showing a cross-sectional state of the opening when unsealing. Fig. 19 is a schematic diagram of the state where the position of the unsealing end is staggered between two films after unsealing. Fig. 20 is a front view of a spout member according to an embodiment of the present invention. Fig. 21 is a cross-sectional view of the spout member shown in Fig. 20 viewed from the front. Fig. 22 is an X-X sectional view of the spout member shown in Fig. 20 . Figure 23(a) is the front view of the cover after the outlet part shown in Figure 20 is unsealed; (b) is the bottom view of the cover shown in (a); (c) is the top view of the cover shown in (a) . Fig. 24(a) is a front view of the spout part shown in Fig. 20 after unsealing; (b) is a bottom view of the spout part shown in (a). ] FIG. 25 is a front view of an embodiment of a packaging bag provided with the spout member shown in FIG. 20 . Fig. 26 is an enlarged view of the sealing portion of the spout member of the packaging bag shown in Fig. 25 . Fig. 27 is a Y-Y sectional view of the sealing portion of the spout member shown in Fig. 26 .

Detailed ways

[Embodiment 1] The present invention will be described in further detail below in conjunction with the accompanying drawings. Fig. 1 shows a front view of a packaging bag according to an embodiment of the present invention, and Fig. 2 shows an A-A sectional view of the packaging bag shown in Fig. 1 . In FIGS. 1 and 2, the peripheral parts 2 of the two films 1a and 1a are sealed by welding or the like as a sealing part (shown by oblique lines in the figure) to form the main body part of the packaging bag 1 . When filling the contents, a portion of the peripheral portion of the packaging bag is used as an unsealed portion and the rest is formed, and the unsealed portion is used as a filling port to fill the contents, and then the unsealed portion is sealed. Fig. 14 shows a front view of a packaging bag in an embodiment of the present invention, Fig. 15 shows the structure of the X-X section of the packaging bag shown in Fig. 14, and Fig. 16 shows a partially enlarged view of the opening part when the packaging bag shown in Fig. 14 is unsealed. In FIGS. 14 to 16, the peripheral portions 54 of the two films 53a, 53a are sealed by welding or the like as a sealing portion (shown by oblique lines in FIG. 14 ) to form the receiving portion 55 and further form the main body portion of the packaging bag 53. When filling the contents, a portion of the peripheral portion of the packaging bag is used as an unsealed portion and the rest is formed, and the unsealed portion is used as a filling port to fill the contents, and then the unsealed portion is sealed. Fig. 20 is a front view of the spout part of an embodiment of the present invention; Fig. 21 is a sectional view of the spout part shown in Fig. 20 viewed from the front direction; Fig. 22 is an X-X sectional view of the spout part shown in Fig. 20; Fig. 23(a) is a front view of the cover after the outlet part shown in Figure 20 is unsealed; Figure 23(b) is a bottom view of the cover shown in Figure 23(a); Figure 23(c) is a view of the cover shown in Figure 23(a) ) is a top view of the cover; FIG. 24(a) is a front view of the pouring part after the spout part of FIG. 20 is unsealed; FIG. 24(b) is a bottom view of the pouring part shown in FIG. 24(a).

The peripheral part 2 of the packaging bag 1 is provided with an injection part 3 and a discharge part 4 . The injection part 3 is arranged on the upper edge part 2a of the peripheral part 2. Since the sealing parts 2b and 2b at both ends of the upper edge part 2a are set wider, the unsealed part is in the shape of protruding upwards inside the packaging bag. The sealing portion forms an injection port. The injection part 3 is provided with an easy-open seal part 6, and the easy-open seal part 6 spans from the sealed part to the sealed part on the opposite side through the unsealed part forming the injection port. The portion 6 is pulled strongly to remove the upper edge portion (part of the peripheral portion) of the sealed film, and the injection port 3a is formed in the opening formed by the unsealed portion, and the injection portion is unsealed. The easy-opening portion 6 is formed in a half-cut shape by laser irradiation or the like. If on the two films 1a, 1a that form the packaging bag 1, the easy-to-open parts 6 with different tracks are respectively formed, the positions of the unsealed ends cut off along the easy-to-open parts 6 can be staggered between the films, so that each film can be clamped. The film in turn facilitates squeezing the sprue open. In the packaging bag 1 shown in FIG. 1 , an openable and lockable linear engaging portion 7 and an easy-to-peel portion 8 are formed on a line connecting holes 5 and 5 described later of the unsealed portion. The purpose of setting the linear engaging part 7 is to close the injection port after the injection operation is completed so as to facilitate sanitary management; and the purpose of setting the easy-to-peel part 8 is to improve the airtightness before the opening of the injection port. The injection port is completely unsealed after the upper edge of the film is cut off and the easy-peelable portion 8 is peeled off.

Two holes 5, 5 penetrating the film are formed on the sealing portions 2b, 2b at both ends of the upper edge portion of the packaging bag 1, and the holes 5, 5 are located at the peripheral portion near the injection portion 3 and the holes 5, 5 are located at the injection port. Both sides of 3a. This hole 5,5 is the hanging mechanism that can hang packing bag. As shown in Figure 3, when pouring from the pouring part described later, etc., the packaging bag 1 is hung down by a hook clamp (shown by symbol 20 in Figure 3) or the like at one of the holes 5, 5, and the injection The outlet part 4 will be located below, so that it is easy to inject the contents from the injection part 4 (shown by the arrow in Fig. 3). It is also convenient to replenish water or medicine from the injection port 3a formed by unsealing the injection part 3 provided above. The holes 5, 5 are dimensioned to allow the insertion of a finger and thus also serve as a retaining mechanism for reliable handling of the bag with fingers. Specifically, the following operations can be performed. For example, when the injection part 3 is unsealed, the thumb is inserted into one of the holes 5, 5, and the other finger (such as the index finger) is inserted into the other hole so as to hold the injection part 3 of the packaging bag 1 with one hand. On the upper side, the other hand cuts off the easy-opening part as described above and unseals to form the filling port 3a shown in FIG. 4 . As shown by the arrow in FIG. 4, water or medicine can be replenished from the injection port 3a formed as above.

As described above, in the present invention, by providing at least two holes on both sides forming the sprue portion as a holding mechanism for holding the pouch with fingers, it is possible to firmly hold the pouch especially near the sprue because it can be used with one hand. The injection port is kept open, so it is easy to perform operations such as replenishing water, and it can reduce the probability of problems such as dropping or tilting the contents of the bag, and it can also reduce the problem of contamination of the injection port due to contact with the inside of the bag, and The opening of the opening is too large and various problems occur. In addition, since the hole also serves as a hanging mechanism for hanging the packaging bag, the holding mechanism can be easily formed without adding other components. One of the holes can also be used as a hanging mechanism, and a finger can be inserted into the other hole to hang it to hold it, and a stable opening operation can also be realized.

The injection part structure of the packaging bag of the present invention does not install divided parts such as molded products on the peripheral part, but cuts off the opening part formed by the unsealed part of the sealed film peripheral part as the injection port. When the diameter of the injection port is large, if molded products are used, the volume of the parts will increase, and it will be inconvenient to store and transport them before or after containing the contents. If the above-mentioned structure is used, the volume will not increase. Larger, easy to store and transport, and can also be manufactured at low cost large-diameter sprue packaging bags. Compared with the structure of the above-mentioned injection part, if the molded product is used, the film is pulled by hand or cut with scissors, so it is easy to be unstable at the time of opening, and the bag is prone to drop and tear when replenishing water, etc. Problems such as spilling of the contents due to inclination, and contamination of the layer injection port such as hand touching the inside of the packaging bag may also occur. However, the present invention can be stably held because at least two holes are formed on both sides of the part where the injection port is formed.

At least two holes may be formed on both sides of the sprue portion, but three or more holes may be provided, for example, depending on the size of the packaging bag and the size of the hand. The arrangement of the holes is not particularly limited, as long as the portion forming the injection port can be stably held by fingers.

The shape of the above-mentioned hole is not particularly limited, as long as the fingers can be caught when operating the packaging bag, for example, the circular or substantially circular hole in the packaging bag shown in Figure 1, or the hole shown in Figure 5 The shape of the slit shown (shown by symbol 12 in Figure 5). As for the size of the hole, if it is circular or roughly circular, the diameter is preferably between 8 and 30 mm. If it is designed as a slit shape, the length is preferably between 30 and 60 mm. There is no problem with the strength of this size. Easy to hang on your fingers. As shown in FIG. 6 , the peripheral portion of the hole may not be sealed with a film. An unsealed portion (unsealed portion) is denoted by reference numeral 16 in FIG. 6 . Since the film around the hole is not sealed, and the unsealed part is softer than the sealed part, the end of the film will be bent when the finger is caught, so the finger is not easy to touch the sealing edge directly, so it will not cause finger pain. The width of the unsealed portion can be appropriately set according to the size of the packaging bag, the hole, and the like. It is also possible not to penetrate the film, but leave a part of the peripheral part of the hole, and form a needle hole as shown in Figure 7 (a)-(c) in the reserved peripheral part (Figure 7 (a)-(c) Among them, symbols 13, 13', 13 "shown.), or form a half cut through (shown in symbol 13"' in Fig. As shown in e), the seam is pinholed or half-cut through and ruptured, so that the part of the film (shown by symbol 14 in Figure 7(e)) remains connected to the main body of the packaging bag. In this way, the film connected to the main body of the packaging bag will be bent, and the end of the film will not easily touch the fingers, which will not cause finger pain. If the film part is connected to the top of the main body of the packaging bag, it will be more effective if it is held by the film bending part. It is also possible to design part of the hole as a through hole, so that the above-mentioned seam needle hole or half cut through is easy to break.

When the hole is used as a holding mechanism that can be held by fingers, the upper edge may have a shape that protrudes downward. If the above shape is designed, the convex upper edge will be bent when held by fingers, and the film end will not easily touch the fingers when held by the bent part of the film, which will not cause finger pain, and the effect is better. The film on the upper edge of the hole can also be designed as an unsealed unsealed portion. If the film is not sealed at the upper edge of the hole, since the unsealed portion is softer than the sealed portion, the convex upper edge is easier to bend, and the effect is better.

12 and 13 show an embodiment in which the upper edge protrudes downward when the above-mentioned hole is used as a holding mechanism that can be held by fingers. Fig. 12 is a front view of another embodiment of the packaging bag of the present invention, and Fig. 13 is an enlarged view of the hole of the packaging bag shown in Fig. 12 . In addition, the packaging bag shown in FIG. 12 is an embodiment of the holes 5 of different shapes in the packaging bag shown in FIG. 1 , and the parts that overlap with the structure of the packaging bag shown in FIG. 1 are indicated by the same symbols. As shown in Figure 13, the hole 50 in the packaging bag shown in Figure 12 is used as a holding mechanism that can be held by fingers. ). In addition, the film at the upper edge of the hole 50 is designed as an unsealed portion 52 . When using the above-mentioned structure, if it is used as a holding mechanism that can be held by fingers, the upper edge of the hole is in a shape that protrudes downward. There is no special limitation on the shape of the hole other than the upper edge. It is substantially circular, elliptical, substantially elliptical, substantially quadrangular, etc., and a combination of the above shapes can also be employed. The convex shape of the upper edge and the range of the unsealed portion are not particularly limited, as long as they do not hinder the effect that the end of the film is not easy to touch fingers after bending.

In the present invention, when holding the packaging bag with fingers, in order to improve stability and facilitate operation, it is better to design the rigidity of the connecting line part that forms the two sides of the injection port part of the injection part and connects the hole to be greater than other parts. . With the above-mentioned structure, the film of the main body of the packaging bag is not easily twisted during unsealing, so that the unsealing operation is easy, and after unsealing, use a finger inserted into the hole of the holding mechanism to gently push the injection port inward from the left and right to open the injection port. Therefore, the injection operation is stable and convenient. After the injection operation is completed, the injection port will return to its original state only by reducing the force exerted by the fingers, which also has a better effect in hygiene management.

The method of designing the rigidity of the connection line between the holes on both sides forming the injection port part to be greater than that of other parts can be, for example, forming an openable joint on the connection line part forming the two sides of the injection port part and connecting the holes. And the locking linear snap part. The advantage of the linear engaging portion is that it closes the filling port after filling from the filling port to facilitate hygienic management, and at the same time, it can increase the rigidity of the above-mentioned connection part. In addition, a member whose rigidity is higher than the film constituting the packaging bag may be attached in a belt shape on the above-mentioned line.

The packaging bag of the present invention has a spout portion in addition to the injection portion at the peripheral portion 2 . When pouring out, since it is hung by the mechanism of hanging the packaging bag, it needs to be configured so that it can be poured out when hanging, so the pouring part is set at the position opposite to the hanging mechanism, that is, the position opposite to the injection port is good. In FIG. 1 , the lower end portion of the main body of the packaging bag is designed to be cut inwardly, and a spout 4 is provided on one side of the cut-out portion. When a clamp or the like is hung in one of the hanging mechanism holes 5 that also serves as a holding mechanism to hang the packaging bag 1 downward, the pouring part 4 will be configured to be approximately vertically downward, so that it is convenient to pour out the contents from the pouring part 4 , and it is convenient to replenish the contents from the injection port 3a formed by unsealing the injection part 3 formed above. In the packaging bag according to the present invention, as described above, when at least one of the holes is hung as a hanging mechanism, it is more effective to arrange the pouring portion downward substantially vertically.

In the packaging bag 1 shown in FIG. 1, the spout portion 4 is formed by attaching its base to the packaging bag body by thermal bonding or the like, so that the front end of the molded spout part 4a protrudes from the packaging bag body. The front end of the spout member 4a is not shown in the figure, but it is sealed with a cap or the like before unsealing. When pouring, remove the cap etc., unseal the pouring part to serve as a spout, and pour out the contents to the outside by connecting a hose or the like to the spout.

In the present invention, the structure of the pouring part is not limited to the above-mentioned content. In addition, a tube can be clamped between the films constituting the main body of the packaging bag, and a part of the film is cut to expose the tube, and the front end of the tube is connected to Hose, etc. to discharge the contents to the outside structure, etc. There is no particular limitation on the structural material, size and installation method of the spout part, as long as it does not affect the contents and can achieve the required sealing performance.

In the above-mentioned embodiment shown in FIG. 1, in the injection part 3, an easy-opening part 6 is provided across from the sealing part to the opposite side sealing part via the unsealed part forming the injection port. Since the easy-open part of the injection part can be opened, the unsealing operation can be performed stably and the effect is better. As in the above-mentioned embodiment as shown in Fig. 1, the easy-opening portion is formed by forming a curved score at the end of the sealing portion, and a linear easy-to-tear portion that is easily torn by hand from the score is provided, and the score also Can be designed in straight or triangular shape. In order to reduce the cost, it is also possible to form a notch as shown by the symbol 6' in Figure 8, and it is also possible to mark the unsealing position with printing or the like so as to cut off with scissors or the like.

In addition to the above-mentioned hanging mechanism that also serves as a holding mechanism, the packaging bag according to the present invention may also form a through hole in the sealing part or separately provide a hanging mechanism such as a hook.

[Embodiment 2] The packaging bag according to the present invention is not limited to the above-mentioned embodiment, and the following arrangements of the injection part and the injection part can also be exemplified as the arrangement that can be poured out when hanging. Fig. 9 is a front view of another embodiment of the packaging bag of the present invention. In FIG. 9 , the peripheral parts 22 of two films are sealed by means of welding or the like to form a sealed part (shown by oblique lines in the figure) to form the main part of the packaging bag 21 . The peripheral portion 22 of the packaging bag 21 is provided with an injection portion 23 and an injection portion 24 . The injection part 23 is provided at a corner of the upper edge part 22a side of the peripheral part 22, and the unsealed part forming the injection port protrudes from the corner of the packaging bag. The sealing portion on both sides of the unsealed portion forming the injection port forms two holes 25, 25 that penetrate the film, and these holes 25, 25 are used as a hanging mechanism when pouring out and as a holding mechanism when the packaging bag is operated with fingers. The injection part 24 is provided at the side part facing the injection port.

[Embodiment 3] Fig. 10 is a front view of a packaging bag according to another embodiment of the present invention. In FIG. 10 , the peripheral parts 32 of two films are sealed by means of welding or the like as a sealing part (shown by oblique lines in the figure) to form the main part of the packaging bag 31 . The peripheral portion 32 of the packaging bag 31 is provided with an injection portion 33 and an injection portion 34 . The structure of the injection part 33 is the same as that of the injection part 3 in the packaging bag 1 shown in FIG. 35,35, these holes 35,35 are used as the hanging mechanism when pouring out and the holding mechanism when operating the packaging bag with fingers. The spout part 34 is provided at the bottom edge part facing the injection port.

[Embodiment 4] FIG. 11 is a front view of a packaging bag according to another embodiment of the present invention. In FIG. 11 , the peripheral parts 42 of two films are sealed by means of welding or the like as a sealing part (shown by oblique lines in the figure) to form the main part of the packaging bag 41 . The peripheral portion 42 of the packaging bag 41 is provided with an injection portion 43 and an injection portion 44 . The injection portion 43 is provided at a corner of the peripheral portion 42 on the side of the upper side 42a, and has a shape protruding obliquely upward from the corner of the packaging bag. The two sides of the unsealed part forming the injection port are in the shape that the sealing part protrudes to the left and right, and two holes 45, 45 are formed through the film at the sealing parts on both sides of the unsealed part forming the injection port, and the holes 45, 45 become The hanging mechanism and the holding mechanism when operating the packaging bag with fingers. The structure of the pouring part 44 and the filling port is the same as that of the packaging bag shown in FIG. 1 . The pouring operation is facilitated by designing the pouring portion in a shape protruding obliquely upward from the corner of the packaging bag.

[Embodiment 5] A portion 56 that forms an opening when unsealing is formed on the upper portion of a packaging bag 53 shown in FIG. 14 . The portion 56 that forms the opening when unsealing is provided with an easy-opening portion 58 across from the sealing portion through the unsealed portion 57 that forms the opening to the opposite side sealing portion, and the upper end of the easy-opening portion 58 is grasped along the easy-opening portion 58. The unsealing portion 58 pulls strongly to remove the upper edge portion (peripheral portion) of the sealed film, an opening is formed in the unsealed portion 57, and the packaging bag is unsealed. The easy-open portion 58 is formed in a half-cut manner by laser irradiation or the like. When the easy-to-open portion 58 is formed, the tracks of the two films 53a and 53a of the packaging bag 53 are different, and the positions of the unsealed ends of the two films along the easy-to-open portion 58 will be staggered from each other. This makes it easier to clamp each film and squeeze the sprue open.

The opening portion 56 of the packaging bag 53 shown in FIG. 14 is provided with an openable and lockable locking mechanism and a snap-fit seal 59. The snap-fit seal 59 is composed of first and second parts that engage with each other. , and extend across the entire width of the unsealed portion 57 forming the opening; an easy-peeling portion 61 is provided on the housing portion 55 side of the snap-seal. The easy-to-peel portion 61 extends across the entire width of the unsealed portion 57 forming the opening, and separates the engagement seal 59 from the housing portion 55 before being unsealed, and the opening is unsealed when it is peeled off. The purpose of providing the snap seal 59 is to close the opening after unsealing as necessary. In fact, the packaging bag 53 shown in FIG. 14 uses the easy-to-open portion 58 to cut off the upper edge of the film, stretches the snap-fit seal 59 and peels off the easy-to-peel portion 61 before it is completely unsealed.

The structure for forming the opening portion 56 in the packaging bag shown in FIG. 14 is as follows. That is, as shown in FIGS. 15 and 17 , the snap seal 59 (locking mechanism) is composed of a first member 60 a having a protruding front end 67 protruding from a base 69 and a first member 60 a having a protruding female end 68 protruding from the base 70 . The second member 60b constituted, the front end 67 and 68 are engaged with each other and locked. The first member 60a and the second member 60b are integrally formed with the first base member 65 and the second base member 66, respectively. As shown in FIG. 15 , the upper portion of the first base member 65 and the upper portion of the second base member 66 are respectively sealed by sealing portions 65 a, 66 a on the inner side of the film 53 a, 53 a forming the packaging bag and forming the opening. and the lower end of one of the second base members 66 is set longer than the other first base member 65, and is sealed with the lower end by an easy-to-peel seal on the side opposite to the surface of the upper seal portion 66a, The easy-to-peel portion 61 is joined to the other film 53a facing thereto. Fig. 18 shows a cross-sectional state of the opening at the time of unsealing. As shown in FIG. 15, before being unsealed, the lower end portion of the second base member 66 is used as a partition to isolate the locking mechanism 59 from the accommodating portion 55, so that the locking mechanism 59 is protected from being damaged by the contents during storage or transportation. pollution etc. Even when the internal pressure of the packaging bag is received due to falling and accumulation, since the second base member 66 will be subjected to pressure in the direction indicated by arrow A, this pressure direction is not easy to peel off the easy-peeling part, so the easy-peeling part has excellent performance. Excellent pressure resistance, no problems due to easy peeling and cracking. In addition, before being unsealed, the locking mechanism and the easy-peeling portion are sealed in the packaging bag by the sealing portion 54a on the top of the packaging bag, so the locking mechanism 59 will not be polluted by the outside, and the easy-peeling portion 61 will not occur. Rupture causes problems such as contamination or leakage of the contents.

According to the packaging bag of the present invention, in order to attach the locking mechanism to the film forming the packaging bag, the base member forming the locking mechanism is extended downward, and the easy-to-peel portion is formed only by joining with the film. The locking mechanism is isolated from the contents to prevent the locking mechanism from being contaminated, and compared with the method of joining two films, the method of the present invention is less likely to receive pressure to peel off the easy-peeling part, and has excellent pressure resistance and hygienic management , and easy to operate. In addition, since the above characteristics can be easily realized by a base member provided with a locking mechanism, it is easy to manufacture and has excellent cost performance.

The base member in which the lower end portion is longer than the other base member to form the easily peelable portion may be formed on the first member or the second member of the lock mechanism.

In the packaging bag 53 shown in FIG. 14 , a hole 62 penetrating the film is formed in the sealing portion near the opening portion 56 as a hanging mechanism for hanging the packaging bag. When pouring from the pouring part described later, the packing bag 53 is suspended by hanging the jig on the hole 62 or the like, and the pouring part is arranged downward, which makes it easy to pour the contents from the pouring part. According to the packaging bag of the present invention, one or more of the above-mentioned holes for hanging or the like may be formed depending on the use thereof. In particular, if there is a pouring part and it is used for the pouring operation, it is preferable to have the above-mentioned hole. The shape, size, arrangement, etc. of the holes can be appropriately set according to the use, size, and structural material of the packaging bag. A separately formed hook or the like may also be provided as the hanging mechanism.

In the packaging bag 53 shown in FIG. 14 , the lower end portion of the packaging bag main body is cut inwardly, and a spout portion for pouring out the contents is provided on one side of the peripheral portion 54 of the cut-off portion. 63. According to the packaging bag of the present invention, if it is used for accommodating purposes, only the part that forms the opening when it is unsealed can be provided, but if it is used for injecting contents such as nutrients and liquid food, the above-mentioned injection part can be provided. The disposition and structure of the pouring part are appropriately set according to the use of the packaging bag and the like. Especially if the contents are nutrients and liquid food, since the packaging bag is hung by the hanging mechanism when pouring out, it needs to be configured to be able to pour out when hanging, and the pouring part should be set to face the hanging mechanism The position of is preferably, as shown in Figure 14 the hole 62 of packaging bag 53. There are no particular limitations on the structural material, shape, size, arrangement, mounting method, etc. of the spout, and those commonly used may be used. In the packaging bag 53 shown in FIG. 14, the spout portion 63 is formed by attaching the base of the molded spout member 64a to the main body of the packaging bag by thermal bonding or the like, wherein the spout member 64a When unsealing, a spout is formed; when installed, the front end of the spout part 64a protrudes from the main body of the packaging bag, and the front end of the spout part 64a is sealed until it is broken and unsealed by the unsealable sealing part 64b. The spout member 64a and the sealing member 64b are disposed between two films protruding from the main body of the packaging bag, and the peripheral portion of the film (shown by symbol 54' in FIG. 14 ) is sealed, and the spout member 64a and the sealing member 64b are sealed. sealed between the films. An easy-open portion 58' is provided at the base of the film that seals the spout member 64a and the sealing member 64b, and the easy-open portion 58' facilitates the removal of the film. When pouring, use the easy-to-open part 58' to cut off the film that seals the spout member 64a and the sealing member 64b, and twist the sealing member 64b to break the sealing position. After removing the sealing member 64b and the film, the spout member 64a is exposed. The spout is then unsealed. The spout can be connected to a hose or the like to pour out the contents to the outside. By sealing the spout member 64a and the sealing member 64b with a film, the spout can be prevented from being contaminated before being unsealed. The structure of the pouring part can also be such that the tube is sandwiched between the films constituting the main body of the packaging bag, the film part is cut off to expose the tube, and a hose or the like is connected to the tip of the tube to discharge the contents to the outside.

In the above-described embodiment shown in FIG. 14 , the portion 56 that forms the opening at the time of unsealing is provided with an easy-opening portion 58 across from the sealed portion via the unsealed portion 57 that forms the opening to the sealed portion on the opposite side. The packaging bag of the invention is advantageous in that the opening portion is provided with an easy-open portion that facilitates removal of the peripheral portion of the film so that the unsealing operation can be performed stably. In the above embodiment, a curved notch is formed at the end of the sealing part as the easy-to-open part, and a linear easy-to-tear part is provided to facilitate tearing from the notch. The notch can also be linear or triangle shape. In order to reduce the cost, it is also possible to only form a notch or mark the unsealing position by printing or the like so as to facilitate cutting with scissors or the like. In the present invention, when forming the easy-opening part, it is preferable to make the positions of the opening ends cut off by the easy-opening part different on the two films. The specific method can be exemplified. As shown in the above-mentioned embodiment, two sheets of the packaging bag are formed. The films are respectively formed with half-cut and easy-opening parts with different trajectories, and the positions of the unsealing ends of the two films are staggered after being cut along the easy-opening parts. Fig. 19 shows the position of the unsealed end (indicated by symbols 71a and 71b in Fig. 19) after unsealing, and the two films are staggered from each other.

According to the structure of the packaging bag of the present invention, it is preferable that the first and second base members forming the first and second members of the locking mechanism are not exposed to the outer edge of the sealing portion that seals the peripheral portion of the film. Since the base member is not exposed on the outer edge of the sealing part, that is, the end of the locking mechanism and the easy-peeling part is not exposed on the outer edge of the sealing part, the strength of the sealing part will not be reduced, and it is difficult to package when it is dropped. The rupture of the bag leads to the leakage of the contents and the reduction of airtightness. In particular, due to the easy-peelability of the easy-peelable part, if its end is exposed to the outer edge of the seal part, if it is dropped or damaged during handling, etc., and the bag is peeled off, the inside of the packaging bag will communicate with the outside, resulting in leakage of the contents and Sanitation problems occur.

In the packaging bag according to the present invention, when the locking mechanism is adopted as in the above-mentioned embodiment, that is, the snap-fit sealing method constituted by the first protruding part protruding from the base and the second part protruding from the base, an opening is formed. Partial sealing will be more effective. If the snap seal is not separated by the easy-peelable part as in the present invention, the internal pressure of the content during storage or transportation may cause disengagement and the content may adhere to the engaging part, resulting in insufficient engagement.

In the packaging bag according to the present invention, the snap seal is designed to have a cross-sectional shape perpendicular to the longitudinal direction of the front end of the first part of the convex head as an elliptical shape, and to design a cross-sectional shape perpendicular to the long-side direction of the front end of the second part of the female head. The recess is designed to be approximately the same as the cross-sectional shape of the front end of the first part, and when the first and second parts are engaged, the gap between the front end of the first part and the front end of the second part is only formed near the base of the first part Gaps are better. Fig. 17 shows a cross-sectional view of an embodiment of a snap-fit seal structure. The engagement seal shown in FIG. 17 is constituted by a male first member 60 a integrally formed on a first base member 65 and a female second member 60 b integrally formed on a second base member 66 . The first member 60a is composed of a front end portion 67 and a base portion 69 connected to the base member; the second member 60b is composed of a front end portion 68 and a base portion 70 connected to the base member. The cross-sectional shape perpendicular to the longitudinal direction of the front end portion 67 of the first member 60a is an ellipse; The shape is roughly the same. When the first and second members are engaged, a gap is formed between the first member front end portion 67 and the second member front end portion 68 only in the vicinity of the first member base portion 69 . If the above-mentioned structure is adopted, when the first and second parts are engaged, the front end 67 is close to the front end 68 so as to improve airtightness, and by designing the cross-sectional shape of the engaging part as an ellipse, the front end 67 of the first part and the second part are strengthened. If the engagement strength between the front end portions 68 of the two members is improved, disengagement is unlikely to occur even when the internal pressure of the housing portion rises. When disengaging, hook the above-mentioned gap with a finger to easily release the snap-fit seal.

[Embodiment 6] The spout member S shown in FIG. 20 is mainly composed of a cover portion 72, a spout portion 73, and a sealing portion 81. The pouring portion 73 is composed of a base portion 85 and a cylindrical portion 80 protruding from the base portion 85 . The sealing part 81 seals the front end part of the cylinder part 80 in the pouring part 73 via the rupturable fragile part 81a, and the sealing part 81 is supported inside the front end part of the cap part 72 as mentioned later. By rotating the cover 72 to the left or right as shown by arrow A in FIG. 20, the fragile part 81a is broken and the cover 72 and the sealing part 81 are separated from the pouring part 73, and at the same time, the front end of the barrel 80 is unsealed. Form the spout. The cap portion 72 has a shape covering the entire cylindrical portion 80 , and the cap portion 72 and the spout portion 73 include a locking mechanism capable of locking the cap portion 72 to the spout portion 73 .

In the spout part of the present invention, the "breakable weak part" refers to a part that is processed to reduce the strength from the material aspect, or the strength of this part is lower than that of other parts by providing a thin-walled part or a partially thinned part. part.

The cover part 72 in the spout part S shown in FIG. 20 is mainly composed of a cover part main body 74, a support part 75 provided inside the front end of the cover part main body 74, and an auxiliary unsealing part 76. A flange part is provided at the lower part of the cover part. 77 and scoring portion 78. The flange part 77 and the notch part 78 together with the locking part 83 and the protrusion part 84 in the pouring part 73 which will be described later constitute a locking mechanism that can be locked to the pouring part 73 after the lid part 72 is separated.

The cover main body 74 is in the shape of covering and protecting the cylindrical part 80 of the spout part S as a whole, and the gap between the inner surface of the cover main body and the outer surface of the cylindrical part should not exceed a resealable level, which is beneficial to the damage resistance. The supporting part 75 supports the sealing part 81 which seals the front end of the cylindrical part 80 ; the supporting part 75 also prevents the sealing part 81 from falling off after unsealing. As shown in FIGS. 21 and 22 , the sealing portion 81 seals the front end of the tube 80 through a rupturable fragile portion 81 a formed in the circumferential direction of the tip of the tube before being unsealed. On the upper side of the side surface of the seal portion 81 , a lateral protrusion 81 b supported by the cover support portion 75 is provided. Four convex guides 79 are formed inside the cover main body 74, as shown in FIG. As shown in FIG. 23 , after unsealing, the support portion 75 and the guide portion 79 support the seal portion 81 to prevent the cap from falling off downward. The upper surface of the lid is sealed as shown in Fig. 23(c). The lower surface of the sealing portion 81 has a shape that can be fitted with the spout 82 described later after the cover portion is separated, and can be resealed by fitting the sealing portion 81 and the spout 82 . By designing the fragile portion 81a to be a thin-walled portion with a thickness of 0.15mm or more and 0.2mm or less, a smooth fracture surface without burrs can be formed at the front end of the broken tube (inside the spout). In the above embodiment of the present invention, if necessary, the spout can be resealed with the cap after the cap is separated, which is more effective in terms of operability and the like.

The auxiliary unsealing portion 76 is a pair of plate-shaped portions protruding left and right outward from the front end portion of the cover portion. It is better to set the auxiliary unsealing part to screw the cap part for convenience when unsealing. The shape of the auxiliary unsealing part is not particularly limited. In addition to the shape in which the spout member bulges obliquely downward in FIG.

The spout part 73 in the spout member S shown in FIG. 20 is mainly composed of a base part 85 and a cylindrical part 80 protruding from the base part 85 . Annular protrusions 80 a , 80 b , and 80 c for locking the hose are provided on the outer side of the cylindrical portion 80 . As described above, the sealing portion is broken by screwing the cap portion, and the front end portion of the barrel portion is unsealed to form the spout 82 shown in FIG. 24 .

The base portion 85 is in the shape of a boat extending left and right, and has a plurality of linear reinforcing portions 85a on the sides in order to increase the strength and make the sealing portion close to each other. The shape of the base is not particularly limited, and it is preferable to design a boat shape because it is easy to manufacture and can be closely attached to the sealing portion.

Two locking portions 83 are provided on the upper surface of the base portion 85 , and two protrusions 84 are provided on the side surface of the cylindrical portion 80 . These, together with the flange portion 77 and the notch portion 78 of the cover portion 72, constitute a locking mechanism. The flange part 77 of the cover part 72 is locked by the locking part 83 of the pouring part 73, and the vertical movement of the cover part 72 is prevented. The notched part 78 of the cover part 72 is locked by the protrusion part 84 of the pouring part 73 to prevent the cover part 72 from moving in the direction of left and right rotation. Usually, when the cap is not subjected to external force in the left-right direction, the cap 72 is locked by the spout 73 , and when the cap is subjected to a force in the left-right direction, due to the possibility of the notch 78 and the protrusion 84 The flexibility is unlocked, and the flange part 77 rotates along the concave part of the locking part 83. When the notch part 78 rotates 90 degrees to the locking part 83, the connection between the cover part and the pouring part is locked on the flange part. The gap at 77 was lifted. Since the seal of the seal is broken at this stage upon unsealing, the cap can be detached and the spout unsealed, and the reverse can be done to snap the cap to the spout and reseal the spout. The locking mechanism of the present invention is not limited to the above content.

The spout member of the present invention preferably has a plurality of annular protrusions for locking the hose on the outer surface of the spout portion cylinder as in the above-mentioned embodiment. Since there are various diameters of the hose connected to the spout, the annular protrusion used to lock the hose can be provided with a plurality of annular protrusions with different outer diameters in advance according to the inner diameter of the hose, without using a connecting fixture. Various hoses can be connected without risk of falling off. Of course, if only a specific hose is used, only one annular protrusion may be provided.

The spout member of the present invention can generally be produced by injection molding or the like using thermoplastic resins such as polyethylene and polypropylene used for the spout member. As long as it has the above-mentioned form, the size of the whole and each part is not particularly limited within the range that does not hinder the action of the present invention, and it is set as appropriate according to the viscosity and injection speed of the content to be injected.

Embodiments of the packaging bag using the spout member of the present invention will be further described below. Figure 25 is a front view of the packaging bag equipped with the spout part shown in Figure 20; Figure 26 is an enlarged view of the spout part sealing part of the packaging bag shown in Figure 25, and Figure 27 is the spout part sealing part shown in Figure 26 Y-Y section diagram. The packaging bag 86 shown in FIG. 25 is sealed by welding the peripheral parts of two films, etc. as the first sealing part 87 to form the receiving part 88 . When filling the contents, a portion of the peripheral portion of the packaging bag is used as an unsealed portion and the rest is formed, and the unsealed portion is used as a filling port to fill the contents, and then the unsealed portion is sealed.

In the packaging bag 86 shown in FIGS. 25 to 27 , the lower end portion of the receiving portion 88 is provided in a shape in which the inside is cut off, and a spout member for pouring out the contents is provided on one side of the peripheral portion 87 of the cut-out portion. Sealing portion 95 . The spout member sealing portion 95 is formed as follows: the cylinder portion 80 of the spout portion protrudes from the housing portion, and the spout member S shown in FIG. 20 is arranged on two films (symbol 95a in FIG. , 95a) between; when the first sealing portion is formed between the films of the first sealing portion 87, the base portion 85 of the injection portion is fixed by thermal bonding or the like; and the sealed second sealing portion 96 , between the films around the cover 72 in a state in which the cover 72 is sandwiched between the films 95a, 95a.

In the packaging bag shown in FIGS. 25 to 27, the film 95a, 95a that is located at the front end side of the base portion 85 of the spout member S and constitutes the sealing portion 95 of the spout member is cut off, and the film 95a, 95a is rotated together with the cover portion of the spout member. 72, separate the cover part 72 and the sealing part 81 from the pouring part 73, and the spout is unsealed immediately, and the barrel part of the spout part will be exposed, and operations such as connecting a pouring hose can be performed. The lid portion of the spout member is separated while holding the sealing portion and being accommodated between the cut films. The cap is shaped to cover the entire barrel and can be locked to the barrel as needed, so the spout can be kept hygienic even after opening. Since the cover is separated in a state of being sandwiched between the films, the possibility of contamination such as accidentally falling off from the film or falling on the floor after separation can be reduced. If the cover does not need to be reused, it can be used together with the film throw away.

According to the packaging bag according to the present invention, since the spout part is sealed on the packaging bag with a film, it has excellent hygienic management before the spout part is opened, and even if the spout part is formed of a material with low barrier properties such as cyclopolyolefin, it is easy to maintain. The barrier property of the spout part can be enhanced by making the film constituting the packaging bag have barrier properties, and functions such as light shielding that are difficult to achieve due to the constraints of the material of the spout part can also be achieved by making the film constituting the packaging bag have this function. The whole bag has this function, and it has excellent quality control. In addition, since the spout part is sandwiched by the film, the spout part is not easy to move in the packaging bag, and it can prevent accidental opening due to damage to the fragile part, etc., and has excellent damage resistance. In addition, as described above, since there is no need to touch the spout part when opening, it has excellent pollution resistance and is easy to open.

In the packaging bag according to the present invention, the term that the lid is sandwiched between the films means that the lid is not fixed to the film when the second seal is provided, but is held by the surrounding seal. If the second sealing part is designed to follow the shape of the outer shape of the cover part, it can improve the retainability and improve the damage resistance and make it easy to open. As shown, the auxiliary sealing part in which the second sealing part protrudes and the second sealing part is partially separated may be provided on the lower side of the auxiliary unsealing part. When it is necessary to take out the lid from between the films, and therefore the shape of the lid needs to have an auxiliary unsealing portion, it is better to design the shape so that the second sealing portion does not protrude to the lower side of the auxiliary unsealing portion.

The spout member sealing portion 95 is provided with an easy-open portion 97 for cutting the films 95a, 95a on the tip side from the base portion 85 of the spout member. In the packaging bag according to the present invention, by providing the above-mentioned easy-opening portion on the sealing portion of the spout member, it is easy to cut off the film to facilitate opening, and it is possible to prevent finger contact caused by accidentally cutting off the vicinity of the front end of the spout member sealing portion. In the case of spout parts sealed inside, etc. The method of forming the easy-open part can be, for example, a method of forming a half-cut groove with a laser or the like on the film constituting the packaging bag; The method of forming curved, linear, triangular and other notches at the end; in order to reduce costs, mark the opening position by printing or the like to facilitate cutting with scissors, etc., and the above methods can also be used in combination. In addition, the easy-opening portion 97 is provided at the front end side of the hem portion of the spout member cover (corresponding to the flange portion 77 and its vicinity in the spout member S of FIG. , The hem part of the cap part will be exposed from the film, and the spout port can be easily resealed.

In the present invention, when forming the easy-opening part, the unsealing end cut off by the easy-opening part is bent so that the middle part is closer to the base shape of the pouring part than the position where the unsealing starts and the position where unsealing ends, so that a smaller It is a better solution to unseal the spout part with the force of the film.

In the present invention, the arrangement and structure of the sealing portion of the spout member can be appropriately set according to the use of the packaging bag and the like. Especially if the content is nutrition and liquid food, since the packaging bag is hung by the hanging mechanism when pouring out, it is necessary to adopt a configuration that can be poured out when hanging, especially the sealing part of the spout part should be set in the same position as the hanging mechanism. And the relative position is good, as shown in Figure 25 later described the hole 94 in the packaging bag 86. As for the structural material, shape, size, arrangement, and mounting method of the sealing part of the spout member, the spout member of the present invention described above is used and appropriately set according to the purpose.

According to the packaging bag of the present invention, if the contents are nutritional supplements and liquid food, etc., and it is necessary to replenish medicines and water, the injection part may also be provided at the peripheral part of the sealing film. The injection part 89 is formed in the upper part of the packaging bag 86 shown in FIG. 25 . In the injection part 89, an opening is formed from the unsealed part 90 by cutting off the sealed upper edge part (periphery part) of the film. The injection part 89 is provided with an easy-open part 91 across the sealed part from the sealed part via the unsealed part 90 to the opposite side. Grasp the upper end of the easy-to-open part 91 and pull along the easy-to-open part 91 to remove the sealing film. The upper part (part of the peripheral part). In the packaging bag according to the present invention, it is preferable that the injection portion is provided with an easy-opening portion for cutting off the peripheral portion of the film, so that the unsealing operation can be performed more stably. As the easy-opening portion, the same form as the easy-opening portion in the spout member sealing portion described above can be used. As shown in Figure 25, a curved notch is formed at the end of the sealing part. In order to facilitate tearing from the notch by hand, a linear easy-to-tear part is provided for easy tearing, and the two sheets forming the packaging bag The films respectively form easy-opening parts with different trajectories, and the films are staggered at the position of the unsealing end after cutting off the easy-opening parts, so that it is easy to grasp each film and squeeze the injection part. Specific methods include, for example, forming easy-opening portions such as half-cuts with different trajectories on the two films forming the packaging bag.

Packaging bag 86 shown in Figure 25 is provided with snap seal 92 at injection part, and this snap seal 92 spans the whole width of unsealed part 90 as the locking mechanism that can open and lock; An easy-peeling portion 93 is provided on the 88 side. The easy-to-peel portion 93 extends across the entire width of the unsealed portion 90 , isolates the snap seal 92 from the housing portion 88 before being unsealed, and unseals the injection portion by peeling when unsealed. The purpose of providing the above-mentioned snap seal 92 is to lock the injection part after unsealing if necessary. The packaging bag 86 shown in FIG. 25 is actually completely unsealed after the easy-opening portion 91 is used to cut off the upper edge of the film and the easy-peeling portion 93 is peeled off. The form of the injection part is not limited to the above-described embodiment, and a configuration in which a molding member is attached to the injection port member may be employed. At this time, since the spout member is sealed with a film, as in the spout member sealing portion according to the present invention, it has excellent hygienic management, quality control, and damage resistance of the spout member.

The packaging bag 86 shown in FIG. 25 forms a hole 94 through the film at the sealing portion near the injection portion 89 as a hanging mechanism for hanging the packaging bag. When pouring or the like from the pouring part, the packing bag 86 is hung down by hanging the jig on the hole 94 or the like, and the pouring part will be arranged below, which will facilitate the pouring of the contents from the pouring part. According to the packaging bag of the present invention, one or more of the above-mentioned holes for hanging or the like may be formed depending on the use thereof. In particular, if there is a pouring part and it is used for the pouring operation, it is preferable to have the above-mentioned hole. The shape, size, arrangement, etc. of the holes can be appropriately set according to the use, size, and structural material of the packaging bag. A separately formed hook or the like may also be provided as the hanging mechanism.

In the present invention, the film constituting the main body of the packaging bag can be used by bending a single film, or joining a plurality of films. The structural material of the film is not particularly limited, and materials conventionally used for pouches can be used. Examples of such materials include various film substrates such as biaxially oriented cyclopolyolefin-based resin films, biaxially oriented polyamide-based resin films, biaxially oriented polyester-based resin films, and ethylene-vinyl alcohol copolymer films. Laminated films such as olefin-based thermal adhesive resins such as low-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer, and polypropylene as a sealant layer are laminated on these substrates. In order to improve the protection performance of the contents, etc., a multilayer single-layer film, a metal foil, a composite film, and a film laminated with silicon oxide, aluminum oxide, etc. on the above-mentioned composite film can also be used. In particular, if the substrate is biaxially oriented polyethylene terephthalate or biaxially oriented polyamide laminated film with aluminum oxide layer, it has excellent barrier properties and fragrance retention, and can be used after filling A pinhole testing machine or a metal detector and heating in a microwave oven. The thickness of each thin film can be generally 10 to 150 μm, and the overall size can be appropriately set according to the capacity. When forming a packaging bag, the peripheral portion is sealed by thermally bonding a sealant layer or the like according to the structure of the film. If retort sterilization is required, the materials of the film constituting the packaging bag, the spout, etc. can be selected in advance.

There is no particular limitation on the shape of the packaging bag receiving part according to the present invention, as long as the peripheral part of the film is sealed. For ease of handling during transportation and hot water scalding, a standing part (gusset) can be provided on the bottom surface, etc. If the standing part is provided, the self-supporting property of the packaging bag is improved, and the capacity is also increased. For example, the standing part is only sandwiched and arranged to form the film of the standing part on the bottom surface between the two films constituting the main part of the main part. Or set up a standing part on the top face to increase the capacity.

When forming the storage portion of the packaging bag according to the present invention, the seal shape and seal width of the peripheral portion of the film are not particularly limited as long as it can be sealed, and the shape and width may be changed to form the holes and hook portions of the above-mentioned embodiments. . Example 1

A polyethylene terephthalate (PET) film with a thickness of 12 μm, a barrier aluminum oxide (Al2O3) containing film with a thickness of 12 μm, a polyethylene terephthalate (PET) film with a thickness of 15 μm The polyamide (PA) film, the linear low-density polyethylene (LLDPE) film with a thickness of 100 μm, the laminated film laminated in sequence through the adhesive layer as the film 1a, 1a in the packaging bag 1 shown in Figure 1, Among them, the LLDPE film side is used as a sealant layer, and the peripheral part is thermally welded, and the linear engaging part 7 and the easy-peeling part 8 are formed in the injection part, thereby manufacturing the same packaging bag 1 as in FIG. 1 . At this time, on one side of the peripheral part, the base part of the spout member 4a made of high-density polyethylene (HDPE) resin is thermally bonded in a state where it is sandwiched by a film to form the spout part 4 . On both sides of the unsealed portion forming the injection port 3a, two holes are opened in the sealed portion to form through holes 5, 5 as a hanging mechanism and a holding mechanism. The general size of the packaging bag is 200 mm in width (approximately 180 mm in width of the storage part), 240 mm in height, 5 to 10 mm in sealing width, and 40 to 50 mm in sealing width at the part where the through hole is formed. The through holes are circular with a diameter of 20 mm. When filling the contents, the peripheral part of the packaging bag is used as the unsealed part and other parts are formed, and the unsealed part is used as the filling port to fill the contents, and the unsealed part is sealed by heat welding. The injection port is opened by tearing the easy-opening part 6 of the injection part and peeling the easy-peeling part 8 to form the injection port 3a. Hold the through-holes 5, 5 with two fingers, make the injection port 3a open, and replenish water to the inside of the packaging bag. After the replenishment is completed, the injection port is closed by the linear engaging portion 7 . Then carry out the down-hanging operation of the packaging bag, move to the down-hanging platform with the state of hanging the through holes 5 and 5 with two fingers, hang the through hole 5 opposite to the spout 4 with a clamp and make the packaging bag 1 hang down, The contents are poured out after the spout member 4a is unsealed. Example 2

A polyethylene terephthalate (PET) film with a thickness of 12 μm, a barrier aluminum oxide (Al2O3) containing film with a thickness of 12 μm, a polyethylene terephthalate (PET) film with a thickness of 15 μm A polyamide (PA) film, a linear low density polyethylene (LLDPE) film with a thickness of 100 μm, and a laminated film laminated in sequence through an adhesive layer are used as the films 53a, 53a in the packaging bag 53 shown in Figure 14, However, the LLDPE film side was used as a sealant layer, and the peripheral part was thermally welded. At this time, as shown in FIG. 14 , the inner side of the film forming the opening part 56 when unsealing is provided with a snap seal 59 and an easy-peeling portion 61 as a locking mechanism, wherein the easy-peeling portion 61 is used to close the opening before being unsealed. Protective snap seal 59 . As shown in FIG. 15 , the first base member 65 having the first protruding member 60 a of the engagement seal 59 and the second base member 66 having the second member 60 b of the female head are disposed on the side facing each other where the opening is formed. The inner side of each film; the top of each base member is joined with the inner side of the film respectively; The underside of the latch mechanism of the film is joined with an easy-peel seal, forming the easy-peel portion 61 . In addition, the first and second members and the base member of the snap-fit seal are all made of linear low-density polyethylene (LLDPE), and an easily peelable tape is bonded to the lower end portion of the second base member 66 . In addition, as shown in FIG. 14, in the injection part 63, the injection port member 64a made of high-density polyethylene (HDPE)-based resin and the sealing member 64b at the front end are arranged so as to protrude from the main body of the packaging bag. Between the two films; the base of the spout part 64a is installed on the packaging bag body by thermal bonding to seal the peripheral part of the film; the spout part 64a and the sealing part 64b are sealed between the films. In addition, a through hole 62 is formed by punching as a hanging mechanism. The general size of the packaging bag is 200 mm in width (approximately 180 mm in width of the storage part), 240 mm in height, 5 to 10 mm in sealing width, and 40 to 50 mm in sealing width at the part where the through hole is formed. The through holes are circular with a diameter of 20 mm. When filling the contents, the peripheral part of the packaging bag is used as the unsealed part and other parts are formed, and the unsealed part is used as the filling port to fill the contents, and the unsealed part is sealed by heat welding. The opening part is opened after the easy-opening part 58 is torn, the snap-fit seal 59 is stretched and the easy-peeling part 61 is peeled off, and the unsealed part 57 forms an opening part. Hang the through hole 62 with a clamp to hang the packaging bag 53 downwards, open the snap seal of the opening to replenish water inside the packaging bag, close the snap seal, and pour out the contents after unsealing the pouring part 63.

The opening of the packaging bag of Example 2 is unsealed, filled with 600ml of water from the opening, in the state of engaging and sealing and closing the opening, and left standing in the horizontal direction, as shown in Table 1, without pressurization or after 10 minutes of pressurization, Visually confirm the leakage from the snap seal. The number of tests was 30 bags. The test results are shown in Table 1.

From the results in Table 1, it can be seen that the packaging bag according to the present invention has excellent snap-seal pressure resistance.

[Table 1] Example 2 unpressurized no leakage Pressurized 300g no leakage Pressurized 600g no leakage Example 3

A lid portion having a thickness of 1 mm and a height of 35 mm and having a shape as shown in FIG. 20 was prepared by injection molding. In addition, high-density polyethylene resin was used to integrally mold the injection part and the sealing part as shown in Fig. A thin-walled part (fragile part) with a thickness of 0.2 mm is interposed between the sealing part and the cylindrical part at the front end. The above-mentioned sealing part is fitted to the cap part support part to form a spout member. Example 4

A spout member was formed in the same manner as in Example 3 except that the thickness of the thin portion was 0.18 mm. Example 5

A spout member was formed in the same manner as in Example 3 except that the thickness of the thin portion was 0.15 mm. Example 6

A polyethylene terephthalate (PET) film with a thickness of 12 μm, a barrier aluminum oxide (Al2O3) containing film with a thickness of 12 μm, a polyethylene terephthalate (PET) film with a thickness of 15 μm A polyamide (PA) film, a linear low density polyethylene (LLDPE) film with a thickness of 100 μm, and a laminated film sequentially laminated through an adhesive layer are used as the film in the packaging bag 86 shown in FIG. 25, wherein the The peripheral portion of the LLDPE film side was thermally welded as a sealant layer. At this time, as shown in FIG. 25 , the inside of the film that becomes the injection portion 89 at the time of unsealing is provided with a snap-fit seal 92 and an easy-peeling portion 93 of the opening as a locking mechanism, wherein the easy-peeling portion 93 is used to close the opening. The snap seal 92 is protected prior to opening. In addition, as shown in FIG. 25 , the spout member sealing portion 95 uses the spout member of Example 3 as the spout member S, and is arranged on the two sheets constituting the packaging bag in a state where the cylindrical portion 80 of the spout protrudes from the receiving portion 88 . Between the films; when forming the first sealing part, the base 85 of the injection part is fixed between the films in the first sealing part 87 by thermal bonding or the like; The second sealing portion 96 performs sealing, and at this time, the lid portion 72 is sandwiched between the films. In addition, a through hole 94 is formed by punching as a hanging mechanism. The general size of the packaging bag is 200 mm in width (approximately 180 mm in width of the storage part), 240 mm in height, 5 to 10 mm in sealing width, and 40 to 50 mm in sealing width at the part where the through hole is formed. The through holes are circular with a diameter of 20 mm. When filling the contents, the peripheral part of the packaging bag is used as the unsealed part and other parts are formed, and the unsealed part is used as the filling port to fill the contents, and the unsealed part is sealed by heat welding. The injection part is unsealed after tearing the easy-opening part 91 to open the snap-fit seal 92 and peeling the easy-peeling part 93 , and the unsealed part 90 forms an opening. Hang the hole 94 with a jig to hang the packaging bag 86 downwards, stretch the snap seal 92 of the injection part to replenish water inside the packaging bag, close the snap seal 92, and place the front end side of the base part 85 of the spout part S, which constitutes the spout. The film of the sealing part 95 of the outlet member is cut off, and the whole film is screwed at the same time. By separating the cap part 72 and the sealing part 81 from the pouring part 73, the spout is unsealed, and the hose is connected to the tube part 80 to pour out. Example 7

A packaging bag was produced in the same manner as in Example 6, except that the spout member of Example 4 was used as the spout member S.

Test Example 1 For the spout members of Examples 3 to 5, the fragile portion (thin-walled portion) was broken by screwing the cap to separate the cap from the spout, the spout was unsealed, and the fractured surface of the spout was visually observed. The results are shown in Table 2. From the results in Table 2, it can be seen that only in Example 3 where the thickness of the thin-walled part is 0.2 mm, burrs and stringing phenomena were found on the fractured surface. In actual use, it can still be used with some burrs and wire drawing, but it is better to have no burrs or wire drawing.

Test Example 2 After containing 400ml of water in the packaging bags of Examples 6 and 7 and sealing them, the pouring part was dropped downward from a height of 1.2m, and the leakage of the pouring part was confirmed with the naked eye every time it was dropped. The drop test was performed 10 times, and for the packaging bags whose leakage was not confirmed with the naked eye after the 10 drop tests, the cracking of the thin wall part of the sealing part was confirmed by using the dye penetrant flaw detection test solution. In addition, as Comparative Example 1, the same test was performed on the form in Example 4 in which the spout member lintel was not covered with a film to expose it. The results are shown in Table 3. As can be seen from the results in Table 3, the packaging bag according to the present invention has excellent easy-openability, hygienic management, and quality control because the spout member is sandwiched between the films, and it is easy to form a smooth tear without burrs at the fragile part. The surface will be further reduced in thickness, but even so the sprue part still has excellent breakage resistance.

[Table 2] Visual observation results of the fracture surface Example 3 Burrs and wire drawing were observed Example 4 No burr, wire drawing Example 5 No burr, wire drawing

[table 3] Visually observe the results after dropping Confirm with test solution Example 6 After 1 to 10 drops, no abnormalities are found No abnormalities Example 7 After 1 to 10 drops, no abnormalities are found No abnormalities Comparative example 1 After 1 to 10 drops, no abnormalities are found Penetration due to rupture of the thin wall Possibility of industrial application

The packaging bag according to the present invention ensures stability and sanitation when maintaining the packaging bag during operations such as refilling and opening the spout, and is suitable for applications such as injecting liquid from the outside in addition to pouring out the contents, especially before and after pouring out the contents. And the packaging bags used to accommodate enteral nutrition and food through the intestines, such as replenishing water from the outside in the middle of injection. Moreover, it can protect the locking mechanism from contamination of the contents during storage or transportation, which has excellent hygienic management and is easy to operate; and has excellent pressure resistance when the inside of the packaging bag is subjected to internal pressure, so it is suitable for In order to maintain the sanitation and quality control of the contents, the packaging bag with a locking mechanism at the opening is especially suitable for packaging bags that require hygienic management to accommodate enteral nutrition and food through the intestine. The packaging bag using the spout part of the present invention can keep the spout part hygienic before being unsealed, is not easy to be damaged, and can cover the spout and reseal, which is very convenient to operate, easy to manufacture, and has excellent cost performance, so it can be better Suitable for packaging purposes of high-volume products.

Symbol Description

1 Packaging bag 1a Film 2 Peripheral part 2a Top part 2b Seal part of both ends of top part 3 Injection part 3a Injection port 4 Injection part 4a Spout part 5 Hole 6, 6' Easy-open part 7 Linear engagement part 8 easy peel part 12 slit shaped hole 13, 13', 13" needle hole 13"' half cut through 14 film part 16 unsealed part 20 clamp 21, 31, 41 bag 22, 32, 42 peripheral part 22a , 32a, 42a upper part 23, 33, 43 injection part 24, 34, 44 injection part 25, 35, 45 hole 50 hole 51 convex part 52 unsealed part 53 packaging bag 53a film 54 peripheral part 54' injection part Peripheral part 54a Upper sealing part 55 Storage part 56 Opening part 57 Unsealed part 58, 58' Easy opening part 59 Lock mechanism (snap seal) 60a Male first part 60b Female second part 61 easy-peeling portion 62 hole 63 spout portion 64a spout member 64b seal member 65 first base member 66 second base member 65a, 66a base member seal portion 67, 68 front end portion 69, 70 base portion 71a, 71b position of opening end 72 Cover 73 Injection 74 Cover Body 75 Support 76 Auxiliary Unsealing 77 Flange 78 Score 79 Guide 80 Cylinder 81 Seal 81a Fragile 82 Spout 83 Lock 84 Protrusion 85 Base 85a reinforcement part 86 packaging bag 87 peripheral part (first sealing part) 88 storage part 89 injection part 90 unsealed part 91 easy opening part 92 locking mechanism (snap seal) 93 easy peeling part 94 hole 95 spout part sealing part 95a film 96 second sealing part 97 easy opening part S spout part

Claims (26)

1. A packaging bag, which is formed by sealing a plurality of peripheral parts of a film, and the peripheral part has an injection part and an injection part; it is characterized in that, In the injection part, an opening is formed from the unsealed part by cutting off part of the peripheral part of the sealed film, and the opening is unsealed to form an injection port; At least two holes are formed in the peripheral part near the injection part and on both sides of the injection port part, and the holes are not only a hanging mechanism for hanging the packaging bag, but also a holding mechanism for holding with fingers. 2. The packaging bag according to claim 1, wherein in the injection part, the rigidity of the line part forming both sides of the injection port part and connecting the hole is set higher than that of the remaining part. 3 . The packaging bag according to claim 2 , wherein, in the injection part, the line part that forms both sides of the injection port part and connects the hole forms a linear engaging part that can be opened and locked. 4 . 4. The packaging bag according to any one of claims 1 to 3, characterized in that the hole is a circular or substantially circular hole with a diameter of 8-30 mm. 5. The packaging bag according to any one of claims 1 to 3, characterized in that its structure is that a part of the peripheral portion of the hole is reserved, and the reserved peripheral portion forms a stitch hole or a half-cut shape, When in use, the seam is pinholed or half-cut through and ruptured to form a hole in which the film is partially connected to the main body of the packaging bag. 6. The packaging bag according to any one of claims 1 to 3, wherein the hole is in the shape of a slit with a length of 30-60 mm. 7. The packaging bag according to any one of claims 1 to 6, which is characterized in that the film around the hole is not sealed. 8. The packaging bag according to any one of claims 1 to 3, characterized in that, when the hole is used as a holding mechanism that can be held by fingers, its upper edge is in a downwardly protruding shape. 9. The packaging bag according to claim 8, which is characterized in that the film on the upper edge of the hole is not sealed. 10. The packaging bag according to any one of claims 1 to 9, characterized in that at least one of the holes is used for hanging as a hanging mechanism, the injection part is configured to be approximately vertically downward direction. 11. A packaging bag, which forms a storage portion by sealing the peripheral portion of one or more films, and forms an opening for unsealing from the unsealed portion by cutting off a part of the peripheral portion of the sealed film, and is characterized in that , The opening includes a locking mechanism extending across the entire width of the opening and capable of being opened and locked, and an easy peel, wherein The locking mechanism is composed of first and second parts engaged with each other, and the easy-peeling portion extends across the entire width of the opening; the easy-peeling portion isolates the locking mechanism from the receiving portion before being unsealed , when unsealing, the opening is unsealed by peeling off the easy-peelable portion; wherein, The upper part of the first base member provided with the first member and the upper part of the second base member provided with the second member are respectively joined to the insides of the opposite films forming the opening to form the lock. closed institutions; and, The lower end portion of one of the base members is longer than the other base member, and the lower end portion is bonded to the opposing film through an easy-peel seal to form an easy-peelable portion. 12. The packaging bag according to claim 11, wherein the first and second base members are not exposed to the outer edge of the sealing portion formed by sealing the peripheral portion of the film. 13. The packaging bag according to claim 11 or 12, characterized in that the locking mechanism is a chuck seal, wherein the locking is performed by the first part of the convex head and the second part of the concave head. In this configuration, the first part of the protruding head protrudes from the sealing base. 14. The packaging bag according to claim 13, characterized in that, in the locking mechanism, the cross-section of the front end of the first part of the protruding head perpendicular to the long side direction is set in an elliptical shape; The recess of the cross-sectional shape of the front end of the second part of the concave head perpendicular to the longitudinal direction is set to be substantially the same as the cross-sectional shape of the front end of the first part; and, When the first and second members are engaged, a gap is formed only between the front end of the first member near the base of the first member and the front end of the second member. 15. The packaging bag according to any one of claims 11 to 14, wherein an easy-opening portion for easily cutting off the peripheral portion of the film is provided at the portion where the opening is formed, and the easy-opening portion is as follows: Formed in a manner, that is, the position of the easy-opening part after cutting off the unsealing end is different on the two films. 16. The packaging bag according to any one of claims 11 to 15, which is characterized in that a spout portion is provided on the peripheral portion of the sealed film. 17. A spout member comprising a sprue part, a sealing part, and a cover part, wherein the spout part is composed of a base part and a cylindrical part protruding from the base part, and the sealing part is rupturable via a The fragile part seals the front end of the tube; the fragile part is broken by screwing the cover to separate the sealing part and the cover from the injection part, and the front end of the tube is unsealed to form a spout. is that The cap part has a shape covering the entire cylindrical part, and the cap part and the pouring part are equipped with a locking mechanism capable of locking the cap part to the pouring part. 18. The spout member according to claim 17, which is characterized in that a plurality of annular protrusions for locking the hose are provided on the outer surface of the cylindrical portion of the spout. 19. The spout member according to claim 17 or 18, wherein the cover can reseal the spout. 20. The spout member according to any one of claims 17 to 19, wherein the fragile portion is formed of a thin-walled portion with a thickness of 0.15 mm to 0.2 mm. 21. A packaging bag, which forms a storage portion by a first sealing portion that seals the peripheral portion of one or more films, the peripheral portion is provided with a spout member sealing portion, wherein, In the spout member sealing part, the spout member according to claim 17 is arranged between the two films constituting the packaging bag in a state where the cylindrical part of the spout part protrudes from the accommodating part, and the base part of the spout part fixedly connected between the films of the first sealing part; And the spout member is formed by sealing the lid with a second sealing portion that seals between the films around the lid in a state of being sandwiched between the films; The front end side of the base of the spout member and the film constituting the sealing portion of the spout member are cut off, and the spout is unsealed by simultaneously screwing the film and the cap of the spout member together, thereby removing the cap from the spout. partly separated. 22. The packaging bag according to claim 21, which is characterized in that an easy-open portion is provided for cutting off the film at the front end side of the base of the spout member and constituting the sealing portion of the spout member. 23. The packaging bag as claimed in claim 21 or 22, wherein the feature is that the easy-opening portion is in a curved shape such that after being cut off with the easy-opening portion, the middle portion of the unsealing end is closer than the starting unsealing position and the ending unsealing position. closer to the base of the spout. 24. The packaging bag according to any one of claims 21 to 23, wherein the easy-open portion is provided at a position closer to the front end than the hem portion of the cover portion. 25. The packaging bag according to any one of claims 21 to 24, wherein the peripheral portion of the sealed film is provided with an injection portion. 26. The packaging bag according to any one of claims 1 to 25, which is characterized in that it is used for trans-intestinal flow of food or trans-intestinal nutrition.

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