JP2016132483A - Packing bag with weighing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing bag with the weighing function capable of respectively weighing the powdery or granular content by a fixed quantity, and capable of restraining even leaking-out of te content after opening.SOLUTION: A packing bag 1 comprises a storage part 4 for storing the powdery or granular content 6, a cylindrical weighing part 5 projecting from the storage part 4, a seal part 3 for closing the peripheral edge of the storage part 4 and the weighing part 5 and a slit 10 formed in a wide seal part 3a sandwiched by the storage part 4 and the weighing part 5 and capable of inserting the tip of the weighing part 5. The content 6 is filled in a space up to a bending part 5b of the weighing part 5 by setting the packing bag 1 in the vertically inverse direction in a state of being inserted into the slit 10 by bending the weighing part 5 after opening a tip part of the weighing part 5, and the tip part of the weighing part 5 is pulled out of the slit 10 in a state of pressing down a connection part 7 of the storage part 4 and the weighing part 5 by a hand, so that a fixed quantity of content 6 filled in the space up to the bending part 5b from the connection part 7, can be taken out.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a packaging bag with a weighing function having a function of weighing a certain amount of contents such as powdered or granular foods and detergents.

  When sealing contents such as powdered or granular foods and detergents with a packaging film, use a resin film with a heat-adhesive resin laminated on the inner surface, and seal 4 or 3 sides. A packaging form is used in which the film bag formed in this way is filled with the contents and then the filling port is sealed. In these packaging forms, the contents are taken out by gripping both sides of an opening notch (notch) formed in the seal portion of the film edge and tearing the film.

  In such a conventional packaging form, there has been a demand to measure and take out the contents by a certain amount. Accordingly, various packaging bags have been proposed that allow the contents to be weighed and taken out by a certain amount. For example, Patent Document 1 discloses a first partition member and a second partition whose inside is made of a film having the same width as the pouch. A pouch with a weighing function that is divided into a storage chamber, a weighing chamber and a discharge chamber by a material is disclosed. Patent Document 2 discloses a standing pouch container in which an inner space surrounded by a film or a thin wall is provided with a bag portion that opens toward a spout of the container, and a cup-shaped simple measuring instrument is inserted into the bag portion. It is disclosed.

  Further, Patent Document 3 includes a bag main body formed by providing a peripheral seal portion at the periphery of films facing each other to form a storage chamber and a spout provided in the bag main body, and the storage chamber communicates with the spout. Disclosed is a packaging bag with a weighing function, which includes a weighing chamber, a main chamber adjacent to the weighing chamber with a partition seal portion therebetween, and a passage that enables the contents to flow between the weighing chamber and the main chamber. Yes.

JP 2001-122360 A JP 2005-29177 A JP 2013-56698 A

  However, the pouch with a metering function of Patent Document 1 needs to partition the inside of the pouch by the first partition material and the second partition material, so that joining becomes complicated and productivity is poor, and it is practical as a packaging material for foods, detergents, and the like. It was not right. Further, in the standing pouch container of Patent Document 2, it is necessary to insert a measuring instrument manufactured separately from the container main body into the bag portion of the container main body, so that the manufacturing process becomes complicated, and the measuring instrument and the container main body are different. When it was made of a material, it was necessary to break the container body after use and separate and collect the measuring instrument.

  On the other hand, in the packaging bag with a weighing function of Patent Document 3, a cap for resealing the spout provided in the weighing chamber is required, and the number of members increases. In addition, when the packaging bag is turned upside down, the measuring chamber is located above the passage, so that it is difficult to smoothly fill the measuring chamber with powdered or granular contents. .

  In view of the above problems, an object of the present invention is to provide a packaging bag with a weighing function capable of weighing a certain amount of powdered or granular contents and suppressing leakage of the contents after opening. .

  In order to achieve the above object, the present invention is a packaging bag formed of a laminate having at least an outer layer and an inner layer made of a heat-adhesive resin, and encloses a powdery or granular content. A storage portion; a cylindrical measuring portion that protrudes from the storage portion and communicates with the storage portion; a seal portion that closes a periphery of the storage portion and the measurement portion; and the storage portion of the seal portions And a measuring bag having a measuring function, and a slit having a slit that can be inserted into the leading end of the measuring unit, and an opening means formed at the leading end of the measuring unit. is there.

  Moreover, the present invention is characterized in that, in the packaging bag having the above-described configuration, the measuring portion is formed in an arc shape that is curved in a direction in which a tip portion approaches the slit.

  Further, the present invention is the packaging bag having the above-described configuration, wherein the weighing part is formed in a straight line, and the angle formed between the peripheral edge of the storage part continuous on both sides of the weighing part and the weighing part is 90 ° or more. It is characterized by being.

  According to the present invention, in the packaging bag having the above-described configuration, a pair of engaging portions that engage with the slits are formed in the seal portion that closes a peripheral edge of the measuring portion, and the opening means includes the engaging portion. It is characterized in that it is formed closer to the tip of the measuring part than the part.

  According to the present invention, in the packaging bag configured as described above, the engaging portion is a pair of engaging protrusions protruding from both end edges of the seal portion.

  The present invention is also characterized in that, in the packaging bag configured as described above, a plurality of the slits are formed in the wide seal portion.

  Moreover, the present invention is characterized in that, in the packaging bag having the above-described configuration, the inner dimension in the width direction of the measuring portion is not less than 10 mm and not more than 120 mm.

  According to the first configuration of the present invention, after opening the tip of the weighing unit, the packaging bag is turned upside down in a state where the weighing unit is folded and inserted into the slit, so that the space up to the bent portion of the weighing unit is reached. Fill the contents and pull out the tip of the measuring unit from the slit while holding the connecting part of the storage unit and the measuring unit by hand, so that only the contents filled in the space from the connecting part to the bent part A certain amount of contents can be easily weighed and removed. In addition, after taking out the contents, return the packaging bag that has been turned upside down to its original state and store it with the tip of the weighing unit inserted into the slit so that foreign matter can enter through the opening. Can be prevented.

  Further, according to the second configuration of the present invention, in the packaging bag of the first configuration, the measuring portion that protrudes from the storage portion by being an arc-shaped measuring portion whose tip is curved in a direction approaching the slit. The angle of the base end of the can be increased. Therefore, when filling the contents from the connecting part to the bent part with the packaging bag turned upside down, the contents can easily fall, and even if the contents are powder with low fluidity, The contents can be filled smoothly. Moreover, the vertical dimension of the packaging bag can be kept small by curving the measuring portion in an arc shape.

  Further, according to the third configuration of the present invention, in the packaging bag of the first configuration, the weighing unit is linear, and the angle formed between the peripheral edge of the storage unit that is continuous on both sides of the weighing unit and the weighing unit When both are 90 ° or more, when filling the contents from the connecting part to the bent part with the packaging bag turned upside down, the contents easily fall from the storage part to the measuring part, Even if the content is a powder with low fluidity, it can be filled smoothly into the measuring section.

  According to the fourth configuration of the present invention, in the packaging bag having any one of the first to third configurations, the pair of engaging portions that engage with the slits in the seal portion that closes the periphery of the measuring portion. By forming the opening means closer to the tip than the engaging part, the measuring part is opened and the engaging part is engaged with the slit so that the measuring part is securely inserted in the slit. Even if the packaging bag falls down, there is no risk of the remaining contents leaking out.

  According to the fifth configuration of the present invention, in the packaging bag of the fourth configuration, the engagement portion is a pair of engagement protrusions protruding from both end edges of the seal portion, so that the seal portion is notched. The risk of damaging the seal portion can be avoided as compared with the case of forming a shaped engagement portion.

  According to the sixth configuration of the present invention, in the packaging bag having any one of the first to fifth configurations, the slit for inserting the measuring portion is selected by forming a plurality of slits in the wide seal portion. By doing so, the amount of content to be taken out can be changed to 2 or more.

  Further, according to the seventh configuration of the present invention, in the packaging bag of any one of the first to sixth configurations, the inner dimension in the width direction of the measuring unit is set to 10 mm or more and 120 mm or less, so that from the storage unit. The contents are smoothly filled into the measuring unit, and it is easy to hold the contents by hand when the communication between the storage unit and the measuring unit is cut off.

The top view of the packaging bag 1 with a measuring function which concerns on 1st Embodiment of this invention. The cross-sectional enlarged view of the surface side film 2a and the back surface side film 2b which comprise the packaging bag 1 of 1st Embodiment. The top view which shows the state which opened the front-end | tip of the measurement part 5 of the package 1 of 1st Embodiment. The top view which shows the state which inserted the front-end | tip of the measurement part 5 in the slit 10 from the state of FIG. The top view which shows the state which turned the packaging bag 1 upside down from the state of FIG. The top view which shows the state which pressed the connection part 7 with the hand from the state of FIG. The top view which shows the state which pulled out the front-end | tip of the measurement part 5 from the slit 10 from the state of FIG. The top view of the packaging bag 1 which formed the some slit 10 in the wide seal | sticker part 3a The top view of the packaging bag 1 with a measuring function which concerns on 2nd Embodiment of this invention. The top view which shows the state which inserted the front-end | tip of the measurement part 5 in the slit 10 after opening the front-end | tip of the measurement part 5 of the package 1 of 2nd Embodiment. The top view of the packaging bag 1 with a measuring function which concerns on 3rd Embodiment of this invention. The top view which shows the state which inserted the front-end | tip of the measurement part 5 in the slit 10, after opening the front-end | tip of the measurement part 5 of the package 1 of 3rd Embodiment.

  Hereinafter, the package of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a packaging bag 1 with a weighing function according to the first embodiment of the present invention. The packaging bag 1 shown in FIG. 1 has a storage part 4 for storing powdered or granular contents 6 by heat-sealing the peripheral parts of the front film 2a and the back film 2b to form a seal part 3. And the cylindrical measurement part 5 which protrudes diagonally upward from the accommodating part 4 is formed.

  The storage unit 4 and the measuring unit 5 communicate with each other at the connecting unit 7, and the contents 6 can move from the storing unit 4 to the measuring unit 5 through the connecting unit 7. A pair of engaging projections 9 are formed on the seal portion 3 at the tip of the measuring portion 5. Each engagement projection 9 is formed with a notch for opening (I notch) 8a, and a cut line 8b made of a half cut line formed so as to cross the measuring portion 5 is formed between the notches for opening 8a. Yes. The opening notch 8a and the cut line 8b constitute opening means for the packaging bag 1.

  The seal portion 3 positioned between the storage portion 4 and the measuring portion 5 is a wide seal portion 3a formed wider than the other portions, and a slit 10 is formed in the wide seal portion 3a. . The opening length L1 of the slit 10 is substantially the same as the outer dimension (distance between the outer edges of the seal part 3) L2 of the measuring part 5, and the tip part can be inserted into the slit 10 by bending the measuring part 5 to the storage part 4 side. It has become. In addition, the connecting portion 7 is provided with a mark 11 indicating a place to be pressed by hand when taking out the contents 6 to be described later by printing or pasting a seal.

  The bottom seal portion 3b formed at the bottom of the packaging bag 1 is used as a filling port for the contents 6, so that it is an unsealed opening before filling the contents 6, and the contents 6 to the storage portion 4 are filled. The packaging bag 1 is sealed by heat sealing after filling.

  Next, the laminated structure of the surface side film 2a and the back surface side film 2b is demonstrated in detail. As shown in FIG. 2, the front-side film 2 a and the back-side film 2 b are a laminate in which an outer layer 12 and an inner layer 14 made of a thermoadhesive resin layer (thermoplastic resin layer) are laminated.

  As the outer layer 12, since it becomes a basic material constituting the packaging bag 1, a synthetic resin film or paper material having excellent properties in mechanical, physical, chemical and the like can be used. For example, polyester Resin films such as those based on polyamide, polyamide and polypropylene can be used. Moreover, as these resin films, the stretched film extended | stretched to the biaxial direction is suitable. This is because, usually, a printing layer (described later) is often formed on the outer layer 12, and printability is required. Further, the thickness of the film constituting the outer layer 12 may be determined in consideration of cost and the like, but about 12 to 25 μm is appropriate.

  As a specific example of the outer layer 12 used in the present invention, a biaxially stretched nylon film, a biaxially stretched polypropylene film (OPP), a biaxially stretched polyester-based resin film, or the like is used alone or a laminate thereof. A polyester resin film is particularly preferably used. Specific materials of the biaxially stretched polyester resin film include, for example, polyethylene terephthalate resin (PET), polybutylene terephthalate resin, polyethylene-2, 6-naphthalate resin, polybutylene-2, 6-naphthalate, polycyclohexanedimethylene terephthalate. Various polyester resins such as resins can be used.

  The outer layer 12 may be formed with a print layer to which a desired print pattern such as a character, graphic, symbol, or pattern is added. As a method for forming a printing layer, one or more of normal ink vehicles are used as a main component, and a plasticizer, a stabilizer, an antioxidant, a light stabilizer, an ultraviolet absorber, a curing agent, and a crosslink as necessary. Add one or more additives such as additives, lubricants, antistatic agents, fillers, etc., add colorants such as dyes and pigments, and knead thoroughly with solvents, diluents, etc. Adjust the ink composition. Then, using this ink composition, a desired printing pattern is printed on the back surface of the outer layer 12 by a printing method such as gravure printing, offset printing, letterpress printing, screen printing, transfer printing, flexographic printing, and the like to form a printing layer.

  The inner layer 14 is a layer made of a heat-adhesive resin, and is melted by heat to fuse the surface side film 2a and the back side film 2b to each other. Examples of the heat adhesive resin used for the inner layer 14 include low density polyethylene (LDPE), medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene (LLDPE), polypropylene (CPP), silica, Polypropylene (VMPP) provided with a vapor deposition layer such as alumina and aluminum, ethylene-α olefin copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene Acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, etc. for polyolefin resins such as ester copolymers of ethylene and acrylic acid esters, ethylene-methacrylic acid copolymers, ethylene-propylene copolymers, methylpentene polymers, polyethylene or polypropylene of It one not selected from acid-modified polyolefin resin modified with unsaturated carboxylic acid may be used or two or more. Preferable examples include unstretched polypropylene. As a method for forming the inner layer 14, a method of laminating the above-mentioned thermoadhesive resin by a melt extrusion method or a method of laminating a thermoplastic single layer or multilayer film is used. The thickness of the inner layer 14 may be appropriately determined in consideration of required physical properties (heat sealability), cost, and the like, and is preferably about 15 μm to 100 μm, particularly about 25 μm to 50 μm.

  In addition, when the content to be enclosed is easily changed by moisture or oxygen, a barrier layer that imparts water vapor barrier properties and gas barrier properties to the packaging bag 1 may be laminated between the outer layer 12 and the inner layer 14. As the barrier layer, films such as biaxially stretched polyethylene terephthalate (PET), biaxially stretched polypropylene (OPP), saponified ethylene / vinyl acetate copolymer (EVOH), polyvinylidene chloride (PVDC), polyacrylonitrile (PAN), etc. In addition to this, an aluminum foil (AL) or a biaxially stretched nylon film (ONY) provided with a vapor deposition layer of silica, alumina, aluminum or the like and a coating layer of PVDC, a vapor deposition layer of silica, alumina, aluminum or the like was provided. A polypropylene film (VMPP), a polyethylene terephthalate film (VMPET), etc. can be used. Among these, since the film provided with the aluminum foil or the aluminum vapor deposition layer is opaque, it can also serve as a light shielding layer. As the aluminum foil used for the barrier layer, an annealed aluminum foil is appropriate, and a thickness of about 6 to 15 μm is appropriate.

  In addition, the physical properties required for the packaging bag 1, such as mechanical toughness, bending resistance, puncture resistance (pinhole resistance), impact resistance, cold resistance, heat resistance, chemical resistance, etc. For this purpose, an intermediate layer may be laminated between the outer layer 12 and the inner layer 14. As an intermediate | middle layer, stretched films, such as polyolefin, such as polyester, polyamide, polyethylene, a polypropylene, an ethylene propylene copolymer, can be used, for example. Alternatively, when a barrier layer is laminated between the outer layer 12 and the inner layer 14, an intermediate layer may be further laminated between the outer layer 12 and the barrier layer, or between the barrier layer and the inner layer 14.

  As a manufacturing method of the surface side film 2a and the back side film 2b, a lamination method used when manufacturing a normal packaging material, for example, a dry lamination method, a wet lamination method, a solventless lamination method, an extrusion lamination method, and the like. The method can be used.

  Further, when the above layers are laminated, if necessary, pretreatment such as corona discharge treatment, ozone treatment, flame treatment, blast treatment, etc. can be optionally applied to the surface of the substrate to be laminated.

  As a specific example of the front side film 2a and the back side film 2b mainly composed of the synthetic resin as described above, a laminated film having the following layer configuration can be typically exemplified. The following 1) to 8) are laminated films by a dry lamination method, and each layer is bonded with an adhesive. The following 10) and 11) are laminated films by an extrusion lamination method, and PE (polyethylene) plays the role of the inner layer 14 (adhesive layer). In addition, the value in () shows the thickness of each layer.

1) PET (12 μm) / CPP (25-50 μm)
2) PET (12 μm) / LLDPE (25-50 μm)
3) PET (12 μm) / ONY (15 μm) / LLDPE (25-50 μm)
4) PET (12 μm) / VMPET (12 μm) / LLDPE (25-50 μm)
5) PET (12 μm) / VMPET (12 μm) / CPP (25-50 μm)
6) PET (12 μm) / AL (7 μm) / LLDPE (25-50 μm)
7) OPP (20-30 μm) / CPP (25-50 μm)
8) OPP (20-30 μm) / LLDPE (25-50 μm)
9) OPP (20-30 μm) / VMPP (25-50 μm)
10) PET (12 μm) / PE (10-25 μm) / AL (7 μm) / PE (10-25 μm) / LLDPE (25-50 μm)
11) PET (12 μm) / PE (10-25 μm) / VMPET (12 μm) / PE (10-25 μm) / LLDPE (25-50 μm)

  Next, the manufacturing method of the packaging bag 1 of this invention is demonstrated. First, the storage part 4 and the measurement part 5 are formed by superposing the front surface side film 2a and the back surface side film 2b so that the inner layer 14 faces each other and forming the seal part 3 other than the bottom part seal part 3b. Next, when punching into a predetermined shape along the seal portion 3, a semi-finished product of the packaging bag 1 is manufactured by forming the opening notch 8 a, the score line 8 b, the engagement protrusion 9, and the slit 10.

  The cut line 8b may be physically formed using a rotary die cutter, but is preferably formed on the outer layer 12 after forming a laminated film using a pulse oscillation type laser or the like. As the laser used for forming the score line 8b, a carbon dioxide laser, a YAG laser, a semiconductor laser, an argon ion laser, or the like can be used, and is not particularly limited. The formation positions of the opening notch 8a, the cut line 8b, the engagement protrusion 9, and the slit 10 are formed at predetermined positions by detecting alignment marks (register marks) formed at the same time as the printing layer with a sensor. Can do.

  The semi-finished product of the packaging bag 1 manufactured as described above is set in a filling machine, and the remaining unsealed part (bottom part) of the remaining side (bottom part) is held by a suction cup or an opening jig while the seal part 3 is held by a clamping device. An opening unit such as a vacuum device is opened to form an opening, and a predetermined amount of content 6 is filled from the opening. Finally, the unsealed portion is heat sealed to form the bottom seal portion 3b.

  As a heat sealing method, for example, a known method such as a bar seal, a rotary roll seal, a belt seal, an impulse seal, a high frequency seal, or an ultrasonic seal can be used.

  Next, the opening method of the packaging bag 1 of this embodiment and the taking-out method of the content 6 are demonstrated. When the seal part 3 is torn along the cut line 8b from the opening notch 8a shown in FIG. 1, the tip of the measuring part 5 is cut off to form an opening part 5a as shown in FIG. Communicate with.

  Next, the measuring unit 5 is bent from the state of FIG. 3 to the storage unit 4 side, and the tip of the measuring unit 5 in which the opening 5a is formed is inserted into the slit 10 as shown in FIG. The bent portion 5b is formed. Since the dimension between the tips of the pair of engaging protrusions 9 formed at the tip of the measuring unit 5 is larger than the opening width L1 of the slit 10 (see FIG. 1), the tip of the measuring unit 5 is inserted into the slit 10. Held in a state.

  Then, the packaging bag 1 is turned upside down (inverted state) from the state of FIG. As a result, as shown in FIG. 5, the contents 6 in the storage part 4 pass through the connecting part 7 and flow into the measuring part 5, and are filled in the space up to the bent part 5 b of the measuring part 5. In this state, as shown in FIG. 6, the connecting portion 7 (location of the mark 11) is pressed with one hand to block communication between the storage portion 4 and the measuring portion 5.

  Finally, the tip of the measuring unit 5 is pulled out from the slit 10 with the other hand from the state shown in FIG. As a result, the bent measuring portion 5 returns to its original shape, and the content 6 filled in the space from the connecting portion 7 to the bent portion 5b is slid down and taken out as shown in FIG.

  Thereby, only the contents 6 filled in the space from the connecting portion 7 to the bent portion 5b can be taken out, and a certain amount of the contents 6 can be easily measured and taken out. Further, it is possible to easily adjust the amount of the content 6 to be taken out once only by adjusting the internal volume (internal dimension) of the measuring unit 5. Further, after taking out a predetermined amount of the contents 6, the packaging bag 1 that has been turned upside down (inverted state) is returned to the original state (upright state) again, and the tip of the weighing unit 5 as shown in FIG. Is stored in a state of being inserted into the slit 10. Thereby, since the measuring part 5 is stored in a bent state, entry of foreign matter from the opening 5a can be prevented. Further, since the measuring portion 5 is held in the state of being inserted into the slit 10 due to the engagement between the engaging protrusion 9 and the slit 10, the contents 6 can be removed from the opening 5a even when the packaging bag 1 falls down during storage. There is no risk of leakage.

  The internal dimension of the measuring unit 5 may be appropriately changed according to the amount of the content 6 to be taken out once. However, if the internal dimension (passage width) of the measuring unit 5 in the width direction is too narrow, the measuring unit 5 5 is not filled with the contents 6 smoothly. On the other hand, if the measuring unit 5 is too wide, it is difficult to hold it by hand when the communication between the storage unit 4 and the measuring unit 5 is blocked. Therefore, although depending on the particle size, bulk specific gravity, fluidity, and the like of the contents 6, the inner dimension in the width direction of the measuring unit 5 is preferably 10 mm to 120 mm. Moreover, what is necessary is just to change suitably the internal dimension of the accommodating part 4 according to the capacity | capacitance of the content 6 accommodated.

  It is also possible to change the amount of content 6 to be taken out once (the internal volume from the connecting portion 7 to the bent portion 5b) by changing the position of the bent portion 5b formed in the measuring portion 5. is there. Specifically, as shown in FIG. 8, a plurality of (here, three) slits 10 are formed at different positions of the wide seal portion 3, and the slit 10 into which the tip of the measuring portion 5 is inserted is selected. Thus, the formation position of the bent portion 5b (see FIG. 4) can be changed, and the internal capacity from the connecting portion 7 to the bent portion 5b can be changed in three stages.

  FIG. 9 is a plan view of the packaging bag 1 with the weighing function according to the second embodiment of the present invention, and FIG. 10 shows the weighing unit after opening the tip of the weighing unit 5 of the package 1 of the second embodiment. 5 is a plan view showing a state in which the tip of 5 is inserted into a slit 10. FIG. Portions common to the first embodiment are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the weighing unit 5 is formed in a straight line so as to protrude vertically upward from the storage unit 4. The material and thickness of each layer constituting the front side film 2a and the back side film 2b constituting the packaging bag 1, the method for opening the packaging bag 1, the method for taking out the contents 6, and the like are the same as in the first embodiment.

  Also in this embodiment, after opening the tip part of the measurement part 5 like 1st Embodiment, it inserts in the slit 10 and forms the bending part 5b, and it fills the space from the connection part 7 to the bending part 5b. By taking out only the content 6 that has been made, a certain amount of the content 6 can be easily weighed and taken out. Moreover, after the packaging bag 1 is opened, leakage of the contents 6 from the opening 5a and entry of foreign matter can be prevented.

  Furthermore, in the present embodiment, since the measuring unit 5 that protrudes vertically upward from one end of the storage unit 4 is provided, the angle θ <b> 1 formed between the peripheral edge 4 a of the storage unit 4 that is continuous on one side of the measurement unit 5 and the measurement unit 5. Is 90 °, and the angle θ2 formed between the peripheral edge 4b of the storage unit 4 continuous on the other side of the measuring unit 5 and the measuring unit 5 is 180 °. Therefore, when the packaging bag 1 is turned upside down and the content 6 is filled into the space from the connecting portion 7 to the bent portion 5b, the content 6 easily falls from the storage portion 4 to the measuring portion 5. Therefore, even if the content 6 is a powder with low fluidity, the measuring unit 5 is not easily blocked during the filling, and the content 6 can be filled smoothly. In addition, if the peripheral edge 4a of the storage portion 4 is inclined upward to the left in FIG. 9, in addition to θ2, θ1 also becomes larger than 90 °, so that the contents 6 in the storage portion 4 are more easily dropped, The contents 6 can be used up without leaving them.

  FIG. 11 is a plan view of the packaging bag 1 with the weighing function according to the third embodiment of the present invention, and FIG. 12 shows the weighing unit after opening the tip of the weighing unit 5 of the package 1 of the third embodiment. 5 is a plan view showing a state in which the tip of 5 is inserted into a slit 10. FIG. Portions common to the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, the measuring portion 5 is formed in an arc shape, and the tip portion is curved in a direction approaching the slit 10. About the material and thickness of each layer which comprise the surface side film 2a which comprises the packaging bag 1, and the back side film 2b, the opening method of the packaging bag 1, the taking-out method of the content 6, etc., it is the same as that of 1st, 2nd embodiment. It is.

  Also in this embodiment, by taking out the contents 6 in the same manner as in the first and second embodiments, only the contents 6 filled in the space from the connecting portion 7 to the bent portion 5b can be taken out. A certain amount of contents 6 can be easily measured and taken out. Moreover, after the packaging bag 1 is opened, leakage of the contents 6 from the opening 5a and entry of foreign matter can be prevented.

  Furthermore, in this embodiment, since the arc-shaped measuring part 5 whose tip is curved in a direction approaching the slit 10 is provided, the protruding angle of the measuring part 5 protruding from the storage part 4 is increased. Therefore, when the packaging bag 1 is turned upside down and the contents 6 are filled into the space from the connecting portion 7 to the bent portion 5b, the contents 6 easily fall from the connecting portion 7 to the bent portion 5b. Therefore, similarly to the second embodiment, even when the content 6 is a powder having low fluidity, the measuring unit 5 is not easily blocked during the filling, and the content 6 can be filled smoothly. Moreover, the dimension of the vertical direction of the packaging bag 1 can also be restrained small by curving the measurement part 5 in circular arc shape compared with 2nd Embodiment.

  The packaging bag 1 of the present invention thus obtained has excellent characteristics such as easy-openability and manufacturability as a packaging material for powdered or granular foods such as seasonings and detergents, and a certain amount of content. Since it has a weighing function for taking out a product, it is possible to provide a package with a weighing function that is remarkably improved in usability and cost.

  In addition, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, embodiments obtained by appropriately combining the technical means disclosed in each embodiment are also included in the technical scope of the present invention, and in the second and third embodiments, the wide seal is provided as in FIG. A plurality of slits 10 are formed at different positions of the portion 3, and the formation position of the bent portion 5 b is changed by selecting the slit 10 into which the tip of the measuring portion 5 is inserted, and the bent portion 5 b is changed from the connecting portion 7. It is possible to change the content volume up to.

  Moreover, in each said embodiment, although the seal part 3 which closes the periphery of the measurement part 5 was provided with a pair of engagement protrusion 9 which protrudes from the both ends edge of the seal part 3 as an engagement part engaged with the slit 10. Instead of the engaging protrusion 9, a pair of notches may be formed in the seal portion 3. In this case, the dimension between the valleys of the pair of cutouts may be substantially the same as the opening length L1 of the slit 10.

  Moreover, in each said embodiment, although the notch 8a for opening was formed by I notch, it can replace with I notch and can also be set as V notch or U notch. Moreover, it can replace with the notch 8a for opening, and can provide the scar group area | region which consists of a some fine piercing hole in the seal | sticker part 3. FIG.

  INDUSTRIAL APPLICABILITY The present invention can be used for a packaging bag for packaging a powdery or granular content. Use of the present invention simplifies a packaging bag with a weighing function that can measure the contents by a certain amount, and can prevent leakage of the contents after opening and entry of foreign objects without using a lid or sealing means separately. And it can be provided at low cost.

DESCRIPTION OF SYMBOLS 1 Packaging bag 2a Surface side film 2b Surface side film 3 Seal part 3a Wide seal part 4 Storage part 4a, 4b Periphery 5 Weighing part 5a Opening part 5b Bending part 6 Contents 7 Connection part 8a Notch for opening (opening means)
8b Cut line (opening means)
9 Engagement protrusion (engagement part)
10 Slit 11 Mark 12 Outer layer 14 Inner layer

Claims (7)

A packaging bag formed by a laminate having at least an outer layer and an inner layer made of a heat-adhesive resin,
A storage section in which powdered or granular contents are enclosed;
A cylindrical measuring part that protrudes from the storage part and communicates with the storage part;
A seal portion for closing a periphery of the storage portion and the measuring portion;
A slit that is formed in the wide seal portion sandwiched between the storage portion and the measuring portion of the seal portion, and into which the tip of the measuring portion can be inserted,
Unsealing means formed at the tip of the weighing unit;
Packaging bag with weighing function.   The packaging bag according to claim 1, wherein the weighing part is formed in an arc shape whose tip is curved in a direction approaching the slit.   2. The measuring device according to claim 1, wherein the measuring unit is formed in a straight line, and an angle formed between a peripheral edge of the storage unit that is continuous on both sides of the measuring unit and the measuring unit is 90 ° or more. Packaging bag.   The seal portion that closes the periphery of the measuring portion is formed with a pair of engaging portions that engage with the slit, and the opening means is formed closer to the tip of the measuring portion than the engaging portion. The packaging bag according to any one of claims 1 to 3, wherein the packaging bag is provided.   The packaging bag according to claim 4, wherein the engaging portion is a pair of engaging protrusions protruding from both end edges of the seal portion.   The packaging bag according to any one of claims 1 to 5, wherein a plurality of the slits are formed in the wide seal portion.   The packaging bag according to any one of claims 1 to 6, wherein an inner dimension of the measuring portion in a width direction is 10 mm or more and 120 mm or less.

Images