JP5567350B2 - bag - Google Patents

Description

  The present invention relates to a bag, and more particularly to a bag in which a spout is formed by cutting a tip opening portion along an opening cut line so that an enclosed substance can be poured out.

  Various liquid products such as liquid detergents such as shampoo, liquid cosmetics such as lotion, liquid seasonings such as soy sauce, powder detergents such as clothes detergents and oxygen bleach, powder seasonings such as dried soup and spices A bag made of a resin film is often used as a simple bag-like container in which various powder products such as materials are enclosed little by little. These bags are formed with a housing portion that encloses a substance by sealing a peripheral portion in a state in which one resin film is folded and overlapped, or in a state in which two resin films are overlapped. .

  These bags are provided with unsealing means such as perforations and notches in order to pour out the contents by forming a spout by separating the unsealed portion when using the enclosed product. Furthermore, as a method for facilitating the opening operation of the bag, devise the shape of the portion where the spout is formed, devise the position of the cut line and the shape of the notch formed in the peripheral portion of the seal portion, For example, a knob is provided (for example, see Patent Document 1).

JP 2005-280748 A

  In spite of various measures as described above, there are cases where opening is still difficult. For example, when a seasoning such as soy sauce is arranged in a lunch box, the resin film is covered with oil such as fried foods and becomes slippery. In addition, when using a powder seasoning during cooking, there are cases where the hand is slippery and difficult to open due to the oil of the ingredients. Furthermore, the present situation is that there has been almost no contrivance for facilitating pouring of the contents in a stable state from the spout of the portion sandwiched between the overlapped resin films formed after opening.

  In particular, when using a skin lotion for finishing with a finger or hand that has been applied to the skin with other cosmetics, the opening operation or pouring is performed with a slippery finger or hand that is slippery. For bags that are expected to be operated, with a simple configuration, it is easier to open, and the opening shape of the spout formed after opening is easily maintained at the desired size, making it even more stable Therefore, it is desired to develop a new technology for facilitating pouring of the contents in such a state.

  By the way, since the resin film which comprises a bag is extended | stretched in the process of film manufacture, it is common that there exists orientation in an extending | stretching direction. Such a resin film can be easily cut in a direction parallel to the orientation direction, but fibrillation occurs in a direction perpendicular to the orientation direction and tends to be difficult to cut.

  The present invention makes it easier to perform the opening operation even if the resin film is cut in a direction different from the orientation direction to form the spout with a simple configuration, and the opening shape of the spout formed after opening is desired. It is an object of the present invention to provide a bag that can be easily held in a size and can be poured out in a stable state.

  In such a situation, the present inventor naturally turns the spout into a bag in which one resin film is folded and the periphery other than the fold line is sealed and the spout is opened so as to include the folded portion. Opened and found that it was easy to pour the contents. In addition, a bag in which a single resin film is folded and the periphery other than the folding line is sealed is generally manufactured by a so-called vertical bag filling machine, and the bag is manufactured by a vertical bag filling machine. The direction along the fold line is the stretching direction (orientation direction) of the resin film, so it is difficult to tear the bag in a direction perpendicular or substantially perpendicular to this, but a specific shape of the opening knob is provided. Thus, it was found that the opening operation in the direction perpendicular or substantially perpendicular to the orientation direction becomes easy.

  That is, in the present invention, an accommodation portion for enclosing a substance is formed by folding a single resin film, forming the fold line as a bottom portion, and sealing the periphery excluding the bottom portion as a seal portion. A pouch is formed by separating the tip opening part from the bag body part along the opening cut line cut into the bag so that the enclosed substance can be poured out, the opening cut line is It is cut in a direction perpendicular or substantially perpendicular to the folded bottom side portion, and the tip opening portion is erected so as to extend the seal portion on the side opposite to the cutting direction of the opening cutting line. It has an opening knob piece, a notch region is provided in a seal portion of the bag body portion adjacent to the opening knob piece across the opening cutting line, and the opening knob piece is picked up to Open the tip opening By disconnecting from Kibukuro body portion, by providing the watch bag adapted to be an outlet to include the bottom portion to the opening edge is obtained by achieving the above object.

  According to the bag of the present invention, even when the spout is formed by cutting the resin film in a direction different from the orientation direction with a simple configuration, the opening operation is further facilitated and the spout formed after the opening is opened. The opening shape can be easily maintained at a desired size, and the contents can be poured out in a stable state.

It is a front view of the bag which concerns on preferable 1st Embodiment of this invention. It is a fragmentary perspective view explaining the state which opens a bag and pours out the contents. It is a front view of the bag which concerns on preferable 2nd Embodiment of this invention. It is a front view of the bag which concerns on preferable 3rd Embodiment of this invention. It is a front view of the bag which concerns on preferable 4th Embodiment of this invention. It is a front view of the bag which concerns on preferable 5th Embodiment of this invention. In the bag which concerns on 4th Embodiment, it is a front view explaining the condition which picks an opening knob piece and performs opening operation in a shear direction. In the bag according to the fourth embodiment, a situation in which the opening knob piece is picked and the opening operation is performed in the pulling direction will be described, (a) a front view and (b) a top view. (A), (b) is a front view explaining the condition where the opening length of a spout can be adjusted in the bag which has an inclination seal part.

  A bag 10 according to a first preferred embodiment of the present invention shown in FIG. 1 is a flat disposable bag-shaped product made of a resin film and containing, for example, lotion as a substance to be contained. The bag 10 according to the first embodiment is used for grasping a portion near the opening / cutting line 14 in the bag main body portion 17 with one hand during use, and holding the opening knob piece 20 with the other hand to perform an opening operation. (See FIG. 7 and FIG. 8), the spout 16 can be easily formed (see FIG. 2), and the opening shape of the spout 16 formed can be easily retained to stabilize the lotion. It has a function to pour out in the state.

  That is, the bag 10 according to the first embodiment encloses a lotion by folding a single resin film, forming the fold line as the bottom 11, and sealing the periphery excluding the bottom 11 as the seal 12. Forming a spout 16 by separating the tip opening portion 15 from the bag body portion 17 along the opening cut line 14 cut into the seal portion 12 (see FIG. 2) and enclosing It is a bag-like container that can pour out the lotion. The opening cut line 14 is cut in a direction perpendicular or substantially perpendicular to the folded bottom portion 11, and the tip opening part 15 extends the seal part 12 to the side opposite to the cutting direction of the opening cut line 14. The opening knob piece 20 is erected in this manner, and a notch region 21 is provided in the seal portion 12 of the bag main body portion 17 adjacent to the opening knob piece 20 with the opening cut line 14 in between. . Then, as shown in FIG. 2, the spout 16 can be formed so as to include the bottom 11 in the opening peripheral 16 a by picking the opening knob piece 20 and separating the tip opening 15 from the bag body 17. It has become.

  Further, in the first embodiment, the boundary line 18 a with the accommodating portion 13 has the inclined seal portion 18 extending in a direction that is neither parallel nor perpendicular to the bottom portion 11, and the inclined seal portion 18 is opened. It has a score line 14.

In the first embodiment, the bag 10 is formed using a single resin film. As the resin film for forming the bag 10, a synthetic resin film in which a thermal adhesive resin (sealant layer) is laminated on the inner surface, that is, a laminated film is used. The base film layer of the laminated film is preferably composed of a synthetic resin film such as uniaxial or biaxially stretched ethylene vinyl alcohol copolymer, polyolefin, polyester, polyamide, polyimide, or vinylidene chloride. If the sealant layer is made of an olefin-based heat-adhesive resin such as low-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer, or polypropylene, an excellent seal can be achieved at a relatively low heat seal temperature. Can exhibit strength. In addition, an intermediate layer may be provided between the base film layer and the sealant layer, and the intermediate layer is appropriately laminated in order to improve properties required for a packaging bag, such as water vapor impermeability, gas barrier properties, and rigidity. It is preferable. The intermediate layer, Si0 ₂ deposited layer, vinylidene coating layer chloride, aluminum oxide coating layer, Al deposited layer or Si0 ₂ or Al, and sputtering layer such as Al ₂ 0 ₃ is preferred. Here, in order to easily maintain the opening shape of the spout 16 formed by separating the tip opening portion 15, it is preferable to select a resin having a high elastic modulus.

  Further, in the first embodiment, the bag 10 uses, for example, a vertical type bag filling machine, and for example, a single resin film cut into a strip having a desired width is folded back at the center while being fed in the stretching direction. At the same time, the periphery excluding the folded bottom 11 is sealed as the sealing portion 12, so that the lotion is sealed in the housing portion 13. That is, while the resin film is sent back in a folded state, and supplying lotion from the filling port of the vertical bag filling machine, the seal portion having a desired seal shape on the three sides except the bottom portion 11 around the storage portion 13 12 is sealed using a sealing means, so that lotion is encapsulated in a substantially trapezoidal containing portion 13 that has a side portion 11 and an inclined side portion formed by a boundary line 18a between the inclined sealing portion 18 and The bag 10 before the opening knob piece 20 and the notch area bag 21 are formed is obtained.

  In the first embodiment, as shown in FIG. 1, the accommodating portion 13 has a substantially trapezoidal shape that is laid down, so that the inclined side portion by the boundary line 18 a with the inclined seal portion 18 is connected. It is connected to the unsealing side end portion 11 a of the bottom side portion 11 through the short side 22. Moreover, it is preferable that inclination | tilt angle (theta) of the inclination side part 18a with respect to the base part 17 is 15-60 degrees. Since the inclination angle θ of the inclined side portion 18a with respect to the bottom side portion 17 is 15 to 60 degrees, the vicinity of the opening cut line 14 of the bag main body portion 17 can be surely grasped by hand at the time of opening, The opening part 15 can be easily cut to the bottom part 11. Further, the skin lotion can be poured out from the opened spout 16 in a stable state.

  Furthermore, in this 1st Embodiment, it is the outer side of the inclination side part 18a of the accommodating part 13 with respect to the bag 10 before the opening knob piece 20 and notch area | region 21 which were formed with the vertical type bag filling machine are formed. A triangular cutout is formed as a cutout region 21 in the partial seal portion 12 along a rectangular long side portion facing the bottom portion 11. As a result, the opening knob piece 20 stands up so that the seal portion 12 extends in the opposite direction to the cutting direction of the opening cutting line 14 in a state where the inner side portion 20a thereof is arranged perpendicularly or substantially perpendicular to the bottom portion 11. By providing, it is provided in the front end side region of the bag 10. Further, the triangular cutout region 21 is formed in the bag main body portion 17 adjacent to the unsealed knob piece 20 with the unsealed cut line 14 in between.

  Furthermore, in the first embodiment, an opening notch serving as a separation start portion when the opening knob piece 20 is picked up and opened by extending downward from one side portion 20a inside the opening knob piece 20. A line 14 is formed so as to bite into the seal portion 12. As a result, the opening cut line 14 is cut in a direction perpendicular or substantially perpendicular to the bottom part 11, and the opening knob piece 20 has a side part 20 a along the extension line 19 of the opening cut line 14. . Further, when the opening 16 is formed by the opening operation of picking the opening knob piece 20, the tip side portion of the opening cutting line 14 and the extension line 19 thereof is cut off as the tip opening portion 15.

  Here, in the present invention, the length L1 and the width W1 of the unsealing tab 20 are set so that it is easy to pick during the unsealing operation and to easily apply a force in the shearing direction X (see FIG. 7). The preferable length L1 of the unsealed knob piece 20 is 5 to 40 mm, more preferably 10 to 30 mm, and further preferably 15 to 25 mm. Moreover, the preferable width W1 of an opening knob piece is 3-40 mm, More preferably, it is 5-30 mm, More preferably, it is 7-15 mm. The ratio (L1 / W1) between the length L1 and the width W1 of the opening tab piece 20 is preferably 1 to 6 because the opening operation can be easily performed in the shear direction.

  Moreover, in this invention, the opening cutting line 14 is in the position where the opening length L2 along the said opening cutting line 14 of the spout 16 formed when the front end opening part 15 is cut | disconnected becomes 1-10 mm. It is preferable to be provided. This facilitates the opening operation and allows the substance to be poured out from the spout 16 formed with opening in a stable state.

  Furthermore, in the present invention, the notch region 21 formed in the seal portion 12 adjacent to the opening knob piece 20 is pulled in the pulling direction Y (FIG. 8) when the opening knob piece 20 is picked by hand. The function of guiding so as to facilitate the opening operation in the shearing direction X (see FIG. 7) can be exhibited. That is, since the notch region 21 is interposed in a portion adjacent to the opening tab piece 20, the user grips the bag main body portion 17 with a hand different from the hand that grips the opening tab piece 20 and presses the bag 10. In this case, the notch region 21 is interposed so that the bag body portion 17 in the vicinity Z (see FIG. 7) of the opening cut line 14 is gripped rather than the bag body portion 17 away from the opening knob piece 20. Therefore, it is possible to smoothly perform the opening operation in the shearing direction X (see FIG. 7) by the opening knob piece 20 in a state in which the vicinity portion Z of the opening cutting line 14 is pressed by force. In order to effectively exhibit such a function, the notch width W2 at the notch proximal end portion of the notch region 21 is preferably not less than 1/2 of the width W1 of the opening knob piece 20, and more preferably. Is the same as the width W1, more preferably larger than the width W1.

  And according to the bag 10 of this 1st Embodiment provided with the above-mentioned structure, even when cut | disconnecting a resin film in the direction different from an orientation direction and forming the spout 16 by simple structure, opening operation is very easy. In addition, the opening shape of the spout 16 formed after opening can be easily held at a desired size, and the contents can be poured out in a stable state.

  That is, according to the bag 10 of the first embodiment, the bag 10 folds one resin film, seals the periphery except the folded bottom 11, and further includes the notch region 21 and the opening cut line 14. It has a simple configuration only to be formed and can be easily formed, and by picking the opening knob piece 20 and cutting the tip opening portion 15 along the extension line 19 of the opening cutting line 14, As shown in FIG. 2, the spout 16 can be easily formed. Moreover, since the formed spout 16 is formed so that the bottom part 11 which turned back the resin film on the opposite side to the seal part 12 is included in the opening peripheral part 16a of the spout 16, the tip opening part When 15 is cut off, the bottom 11 of the portion adjacent to the spout 16 will be deformed in the direction to open around the fold by the restoring force that tries to return to the linear shape against the fold of the resin film. Therefore, this restoring force makes it possible to maintain the opening shape of the spout 16 at a considerable size.

  Further, in the first embodiment, the bag 10 is formed by using, for example, a vertical bag filling machine, and the direction along the folded bottom 11 is the stretching direction (orientation direction) of the resin film. Although it is difficult to cut in a direction perpendicular to or substantially perpendicular to the orientation direction, the opening knob piece 20, the notch region 21, and the opening cut line 14 are provided, which causes fibrillation. However, it is possible to easily perform the opening operation in a direction perpendicular or substantially perpendicular to the alignment direction.

  With these, according to the bag 10 of the first embodiment, for example, even when the opening operation or the dispensing operation is performed with a slippery finger or hand that is slimy, the opening operation is further facilitated and in a more stable state. It becomes possible to easily pour out the lotion as the contents.

  Here, when the direction of tearing the resin film constituting the bag is a direction perpendicular or substantially perpendicular to the orientation direction, for example, it is opened in the shear direction while accurately grasping the vicinity of the cut portion and raising the nail If the operation is performed, the bag can be opened relatively well, but such an operation is difficult for the elderly and people with physical disabilities. Also, it is possible to improve the ease of opening by using a resin with little orientation effect as the resin film, or embossing the seal part, but it is not possible to select a material suitable for protecting the contents, Resin costs and processing costs are expensive. According to the first embodiment, the spout 16 can be easily formed even by an elderly person or a person with a physical disability by a simple opening operation without requiring such an expensive improvement. It becomes possible.

  Further, since there is no seal portion below the spout 16 formed with an opening, the substance to be poured does not flow through the seal portion and spill out to an unintended location. In addition, since there is no seal portion under the spout 16, the spout 16 can be disposed close to the target location. For example, the spout 16 can be poured into a device with a thin mouth or seasoned with sauce or other ingredients. Pinpoint pouring is possible, such as drawing letters and designs on top. Furthermore, since the opening operation is easy, it is possible to provide a bag that can be easily processed without selecting the resin constituting the resin film. Furthermore, since the position where the spout 16 is formed is clear, a person with a blindness can easily recognize the opening portion, and even a person with a physical disability can perform the opening operation without failure. It becomes possible.

  FIG. 3 shows a bag 30 according to a second preferred embodiment of the present invention. While the bag 30 of the second embodiment has substantially the same configuration as the bag 10 of the first embodiment, the seal portion 32 of the outer side portion of the inclined side portion 31a that is a boundary line with the accommodating portion 38 is The inclined seal portion 31 is formed slightly wider along the inclined side portion 31a. In the wide inclined seal portion 31 along the inclined side portion 31a, a triangular notch having a notch start portion of the opening cut line 33 as a top portion is formed as a notch region 34, so that the opening knob piece 35 is opened. It is provided in the tip opening part 37 which is a region on the tip side with respect to the cut line 33. Also in the bag 30 of the second embodiment, the spout is easily formed by picking the opening knob piece 35 and separating the tip opening portion 37 along the extension line 36 of the opening cutting line 33. The same effects as the bag 10 of the embodiment are exhibited.

  FIG. 4 shows a bag 40 according to a preferred third embodiment of the present invention. While 40 of the third embodiment has substantially the same configuration as the bag 10 of the first embodiment, the inclined side portion 41a that is a boundary line with the accommodating portion 44 of the inclined seal portion 41 has a short connection side. It is directly connected to the unsealing side end portion 42a of the bottom side portion 42 without going through. Further, an upper side portion 43 extending in parallel or substantially parallel to the bottom side portion 42 is extended at a portion opposite to the opening side of the inclined side portion 41 a, and the trapezoidal shape is accommodated between the bottom side portion 42. A portion 44 is formed. Also in the bag 40 of the third embodiment, the spout is easily formed by picking the opening knob piece 45 and cutting the tip opening portion 48 along the extension line 47 of the opening cutting line 46, and the first outlet. The same effects as the bag 10 of the embodiment are exhibited.

  FIG. 5 shows a bag 50 according to a preferred fourth embodiment of the present invention. While the bag 50 according to the fourth embodiment has substantially the same configuration as that of the bag 10 according to the first embodiment, the inclined seal portion 51 is provided in a downwardly curved shape so that the accommodating portion 52 has a substantially trapezoidal shape in which the hypotenuse is curved concavely. Further, the notch region 54 adjacent to the opening knob piece 53 has a notch width W2 at the notch proximal end portion smaller than the notch width W2 of the bag 10 of the first embodiment. It is larger than the width W1. Also in the bag 50 of the fourth embodiment, the spout is easily formed by picking the opening knob piece 53 and separating the tip opening portion 56 along the extension line of the opening cut line 55, so that the first embodiment is performed. The effect similar to the bag 10 of a form is show | played.

  That is, according to the fourth embodiment, the notch region 54 having a notch width W2 is interposed in the portion adjacent to the opening knob piece 53, so that the user can see as shown in FIG. Since it becomes easy to grip the bag main body portion 57 in the vicinity portion Z of the opening cut line 55 with a hand different from the hand for picking the opening knob piece 53, The opening operation in the shearing direction X by the opening knob piece 53 can be performed smoothly. Further, as shown in FIG. 8A, even when the opening knob piece 53 is picked and a force is applied in the pulling direction Y by mistake, the bottom 58 is not sealed and is flexible. As shown in (b), the out-of-plane deformation easily occurs, so that the spout can be easily formed by changing the direction of the force in the shear direction X.

  Since the shape of the tip of the spout after opening is tapered, the bag 50 of the fourth embodiment is particularly suitable for quantitatively pouring or drawing a low-viscosity liquid.

  FIG. 6 shows a bag 60 according to a preferred fifth embodiment of the present invention. While the bag 60 of the fifth embodiment has substantially the same configuration as that of the bag 10 of the first embodiment, the inclined seal portion 61 is provided in an upwardly convex curved shape, thereby 62 has a substantially trapezoidal shape in which the hypotenuse is curved in a convex shape. Further, the notch region 64 adjacent to the opening tab 63 has a notch width W2 at the notch base end portion larger than the width W1 of the opening tab 63. The bag 60 of the fifth embodiment also provides the same operational effects as the bag 10 of the first embodiment. Further, since the inclined seal portion 61 is provided in a convex curved shape upward, there is no point serving as a grip mark on the side of the main body portion 65 facing the opening knob piece 63, which is erroneous. Less likely to cause unsuccessful opening operation due to the pressing method. The bag 60 of the fifth embodiment is suitable for dispensing powder such as granules because the neck of the spout is shortened.

The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the substance enclosed in the container does not necessarily need to be lotion, for example, a liquid detergent such as shampoo, a liquid seasoning such as soy sauce, or other various liquids, or a laundry detergent It may be a powder detergent such as an oxygen bleach, or a powder seasoning such as a soup stock or flavor seasoning.
The bag of the present invention is particularly suitable for the storage and use of small quantities of products that are subdivided for single use, but is also suitably used for the storage and use of larger refill products.
Further, the opening operation and the dispensing operation are not limited to being performed with a slippery finger or hand that is slippery. For example, the opening operation or the dispensing operation may be performed with a washed finger or hand.

  Further, as shown in FIGS. 9A and 9B, the bag of the present invention has an inclined seal portion 71 that extends in a direction in which the boundary line 71 a with the accommodating portion 70 is neither parallel nor perpendicular to the bottom portion 72. It is necessary to change the expensive mold by appropriately adjusting the width of the opening knob piece 74 and the position of the opening cutting line 73, for example, by forming the opening cutting line 73 in the inclined seal portion 71. Nonetheless, the size of the spout formed in the opening can be changed according to the type of substance to be accommodated and the purpose of the spout.

10, 30, 40, 50, 60 Bag 11, 42, 58, 72 Bottom side 11a, 42a Opening side end 12, 32 of bottom side Seal part 13, 38, 44, 52, 62, 70 Storage part 14, 33 , 46, 55, 73 Opening cut line 15, 37, 48, 56 Tip opening 16 Outlet 16a Outlet opening peripheral edge 17, 57, 65 Main body 18, 31, 41, 51, 61, 71 Inclined seal 18a, 31a, 41a, 71a Inclined side part (boundary line with accommodating part)
19, 36, 47 Extension line of the opening cut line 20, 35, 45, 53, 63, 74 Opening knob piece 20a One side part 21, 34, 54, 64 inside the opening knob piece Notch region 22 Connection short side 43 Upper side Part θ Inclination angle of the inclined part with respect to the bottom part L1 Length of the opening knob piece L2 Opening length of the outlet W1 Length of the opening knob piece W2 Notch width of the notch area X Shearing method Y Tensile direction Z Opening line Near part of

Claims (2)

An opening is formed by folding a sheet of resin film, forming the fold line as a bottom portion, and sealing the periphery except the bottom portion as a seal portion to form a housing portion that encloses a substance, and is cut into the seal portion. A bag in which a spout is formed by separating the tip opening part from the bag body part along the cut line so that the enclosed substance can be poured out,
The opening cut line is cut in a direction perpendicular or substantially perpendicular to the folded bottom side part,
The tip opening portion has an opening knob piece erected so as to extend the seal portion to the side opposite to the cutting direction of the opening cutting line,
A notch region is provided in the seal portion of the bag body portion adjacent to the opening knob piece across the opening cutting line,
By pinching the opening knob piece and separating the tip opening part from the bag body part, the spout can be formed so as to include the bottom side part in the opening peripheral part ,
It has an inclined seal portion that extends in a direction that is not parallel or perpendicular to the bottom portion of the boundary with the housing portion, and has the opening cut line in the inclined seal portion,
The notch region is formed in the inclined seal portion as a triangular notch whose top is the notch start portion of the unsealing cut line,
A width W2 at a notch proximal end of the triangular notch region is equal to or greater than a width W1 of the unsealed tab piece;
The opening cut line is a bag provided at a position where an opening length L2 along the opening cut line of the spout formed when the tip opening portion is cut is 1 to 10 mm . The bag according to claim 1, wherein the unsealed tab piece has a width W1 of 3 to 40 mm, a length L1 of 5 to 40 mm, and L1 / W1 of 1 to 6.