JP2023133847A - Pouch having take-out auxiliary part - Google Patents

Abstract

To provide a package which is hard to cause clogging in a zipper and is high in productivity.SOLUTION: A pouch comprises a front face film, a rear face film, a zipper member, and a take-out auxiliary part for assisting take-out of a content. The zipper member has a pair of male and female fitting portions and extends linearly in the first direction, and the pair of male and female fitting portions are fixed to the front face film and the rear face film, respectively. The take-out auxiliary part is formed integrally or in contact with at least one of the pair of male and female fitting portions of the zipper member. The length of a stationary portion of the front face film and the rear face film in the first direction, the length of a stationary portion of the take-out auxiliary part in the first direction and the length of a stationary portion of the zipper member in the first direction are the same.SELECTED DRAWING: Figure 2

Description

The present invention relates to a pouch with a zipper that prevents powder, granule, or granular contents from getting caught in the zipper tape when the contents are taken out.

BACKGROUND ART In a pouch with a zipper that accommodates powdered, granular, or granular contents, the contents such as powder may get caught in the zipper when attempting to take out the contents.

Up until now, packages that have solved this problem have included attaching a tongue-like member inside the bag, and when taking out the contents, the tongue-like member is pulled out and the contents are taken out along the member. There was a pouch that could be easily taken out along a tongue-like member without getting caught in the zipper even if the contents were small (Patent Document 1).

Japanese Patent Application Publication No. 2008-037499

However, the zippered pouch package described in the prior literature, which has a tongue-like member that can be easily taken out even when the remaining amount is small and does not clog the chuck, has the following quality aspects: There were challenges and productivity issues. In terms of quality, even if you take out the contents using the take-out part (tongue-shaped), with repeated use, powder will get caught in the zipper and it will not fit together. If it is stored without sufficient compatibility, there is a risk that moisture in the air will enter, and the contents will absorb moisture and coagulate into lumps, resulting in a decrease in quality.

In addition, in the case of the zippered pouch package described in the prior literature, productivity is an issue, as once the zippered pouches have been made, it is necessary to open them one by one and attach the take-out parts one by one. This procedure is time-consuming and not easy.

The problem to be solved by the present invention is to provide a package that is less likely to cause clogging in the chuck and is easy to produce.

The present invention provides a pouch having at least a front film, a back film, a chuck member, a content removal assisting part for assisting content removal, and an opening, wherein the front film and the back film face each other. The chuck member extends linearly in the first direction and has a pair of male fitting portion and female fitting portion that can be mated with each other, and the chuck member has a pair of male fitting portion and female fitting portion. The fitting part is fixed to the front film and the back film, respectively, so that the pouch can be opened and closed, and the content removal auxiliary part is attached to at least one of the chuck members, integrally with the chuck member, or adjacent to the chuck member. and is moved from the opening toward the outside of the pouch so that at least a portion thereof is positioned above at least a portion of either the male fitting portion or the female fitting portion. and has a fixing part that is fixed to the front film or the back film, and is fixed to the chuck member at the length of the chuck member along the first direction, the front film, and the back film. The pouch is characterized in that the length of the region along the first direction and the length of the fixing portion along the first direction are the same.

Further, in the present invention, the chuck part including the ejecting auxiliary part may include a mating part and a retrieving auxiliary part connected to the mating part.

Further, the present invention provides the pouch, wherein the fixing part is located between the front film or the back film and the chuck member.

Further, the present invention provides a pouch, wherein the contents removal auxiliary part has a polyolefin layer on a surface in contact with the chuck member or a surface in contact with the front film or the back film in the fixing part. It is.

Further, the present invention provides that the film stiffness of the member constituting the take-out auxiliary part is
The pouch is characterized by having a tensile strength of 30 mN/15 mm to 75 mN/15 mm.

Further, the present invention is a pouch characterized in that the take-out auxiliary part is a laminate in which polyolefin, a stretched base film, and polyolefin are laminated in this order.

Further, the present invention has side seal portions on the left and right sides, and a maximum length Y of the ejection auxiliary portion in a direction perpendicular to the first direction is a length inner than the side seal portions on the left and right of the fixing portion. The pouch is characterized in that it satisfies the following formula (1) with respect to the size D.
0.8×2D/π<Y<1.2×2D/π (1)

Further, the present invention is a pouch characterized in that a perforated or embossed valley fold line is provided in the central portion of the take-out auxiliary portion in the first direction.

The present invention assumes a pouch containing solid contents in the form of powder, particles, or granules. When taking out these contents from inside the pouch, the removal auxiliary part on the chuck member serves as a removal guide, making it easier to take out the contents. Furthermore, when taking out the contents, the structure allows the removal aid to climb over the chuck, reducing the risk of the chuck becoming clogged with powder or granules. The effect of maintaining the quality of products can be obtained. Especially when the content is large (for example, a large content of 500 g or more), it is effective for repeated use, and even when the remaining amount is small, it is easy to take out and is effective.

In addition, the length of the fixing part of the take-out auxiliary part along the first direction is equal to the length of the chuck member along the first direction and the area fixed to the chuck member on the front film and the back film in the first direction. It has the same characteristics as its length. This is carried out on a bag-making machine using a roll-to-roll method, with the take-out auxiliary part and the chuck member being inserted between the front film and the back film, and then fixed by heat sealing at the fixing part. Furthermore, after side-sealing these films together, cutting and punching allows the pouch having the take-out auxiliary part of the present invention to be attached continuously, efficiently, and easily. In other words, since the cutting and punching are done at regular intervals, the length of the fixing part of the ejecting auxiliary part in the first direction is uniform, and the ejecting part and the chuck member are continuously attached and fixed by heat sealing, which is a common method. It can also be produced using a bag-making machine with a chuck attached, making it highly versatile, efficient, and highly productive.

Moreover, if the mating part including the ejecting auxiliary part and the ejecting auxiliary part are integrated, there is an effect that production can be made more efficiently without increasing the number of parts.

FIG. 1 is a perspective view showing one embodiment of a pouch according to the present invention. (When pulling out the ejection auxiliary part) FIG. 1 is a perspective view showing one embodiment of a pouch according to the present invention. (When the ejection auxiliary part is stored) 1 is a schematic plan view (A) and a schematic cross-sectional view (B) showing an embodiment of a pouch according to the present invention. They are (A) a schematic plan view and (B) a schematic cross-sectional view showing other embodiments of the pouch according to the present invention. They are (A) a schematic plan view and (B) a schematic cross-sectional view showing other embodiments of the pouch according to the present invention. They are (A) a schematic plan view and (B) a schematic cross-sectional view showing other embodiments of the pouch according to the present invention. It is a schematic diagram of the insertion part of the member of the removal auxiliary part on a bag making machine. It is a schematic diagram of a bag making machine when using a bottom material.

FIG. 1 is a perspective view showing one embodiment of a pouch according to the present invention. The pouch of the present invention is a pouch consisting of at least a front film 1, a back film 2, a chuck member 3, a take-out assisting part 4 for assisting in taking out the contents, a side seal part 5, and an opening part 6. FIG. 1 shows a state in which the take-out assisting part is pulled out from the opening, and FIG. 2 shows a state in which the take-out assist part is stored inside the pouch. When taking out contents such as powder, pinch the removal auxiliary part with your fingers to the outside of the pouch opening, tilt the pouch, take out the contents such as powder, and take it out while moving it on the auxiliary part. After taking out the required amount, as shown in Figure 2, return the removal aid to the inside of the pouch, and close the zipper to seal the pouch to prevent the quality of the contents from deteriorating. save or keep. This chuck member 3 consists of a pair of chuck members each having a pair of male mating parts and a female mating part, one of which is heated to the front film and the other to the back film. It is attached with a fixing part 7 fixed with a seal. By making the male and female mating parts engage and disengage, the pouch can be reclosed to open and close, and the sealing properties are maintained by the mating, so that the contents such as powder can be kept securely. The pouch is suitable for storage.

The contents are assumed to be powder, granules, or granular solids. Among these contents, there are contents whose quality is easily deteriorated. For example, powders such as salt, sugar, and wheat flour infiltrate moisture from the outside, absorb moisture, agglomerate, form clumps, and cause quality deterioration. For this reason, the sealability of the pouch during storage is important. Therefore, it is particularly suitable for large-capacity pouches that are used multiple times.

The materials and thicknesses of the front film, the back film, the chuck member, and the ejection auxiliary part are not particularly specified, but it is preferable to provide a sealant layer for heat sealing. This sealant layer is preferably made of polyolefin resin. Specifically, low density polyethylene resin (LDPE), medium density polyethylene resin (MDPE), linear low density polyethylene resin (LLDPE), ethylene-vinyl acetate copolymer (EVA), ethylene-α olefin copolymer , ethylene-based resins such as ethylene-methacrylic acid resin copolymers can be used. In addition, polypropylene resins such as blend resins of polyethylene and polybutene, homopolypropylene resins (PP), propylene-ethylene random copolymers, propylene-ethylene block copolymers, propylene-α-olefin copolymers, etc. may be used. I can do it.

Even when a bottom member and side members are provided for a large-capacity product, there is no particular specification of their material or thickness. The configurations of the base film of the front film, back film, bottom member, and side member are not particularly specified, but may be selected based on the required quality of the contents. For example, in order to prevent oxidative deterioration and moisture absorption of the contents, we select films with oxygen barrier properties and water vapor barrier properties, such as Al foil, inorganic vapor-deposited films, and organic coated barrier films. They may be laminated using urethane adhesive. In addition, if the bag has a large content and is heavy, a base film such as biaxially oriented polyethylene terephthalate film or biaxially oriented polyamide film may be used and laminated with urethane adhesive to increase impact resistance when dropped. I don't mind.

The chuck member is a pair of chuck tapes consisting of a male mating part and a female mating part extending in the first direction, in a direction perpendicular to the side seal. As shown in the schematic plan view or cross-sectional view of FIG. 3, the chuck member and the ejection auxiliary part are separate members and are fixed to the back film or the front film and the fixing part 7 by heat sealing. That is, as shown in FIG. 3, the take-out auxiliary part is heat-sealed to the back film or the front film at the fixing part 7, and the zipper tape member is heat-sealed to the fixing part 7 on top of the take-out auxiliary part. Laminate. Alternatively, as shown in FIG. 4, the take-out auxiliary parts may be arranged in contact with the chuck and attached by heat sealing at the fixing part 7.

This fixed part refers to the part of the ejecting aid part that is heat-sealed to the front film or the back film, and the main body of the ejecting aid part used for moving the contents along the other parts. It is. This fixed part is continuously fixed by heat sealing in a bag making machine, and then cut (punched, trimmed, etc.) into the outer shape of the pouch to create a pouch. Therefore, in the fixing part, the back film, the take-out auxiliary part, the chuck member, and the front film are laminated in this order. Further, when viewed in plan, the lengths of the back film, the take-out auxiliary part, the chuck member, and the front film in the first direction in the fixing part are the same length. Moreover, since the pouches are connected next to each other, the respective parts such as the removal assisting part, the chuck member, the back film, and the front film are also connected next to each other, so that continuous production is possible.

Furthermore, a member in which a tongue-like ejecting assisting part is connected to one side of the zipper tape can also be used. As shown in FIG. 5, a chuck member having an integrated ejection auxiliary part can be fixed by heat sealing at the fixing part 7 of the back film or the front film. for example,
The chuck member having an integrated take-out auxiliary part may be formed by molding with a profile extruder, or the take-out auxiliary part and the male or female mating part of the chuck member may be formed by molding the chuck member with an integrated take-out auxiliary part. , it may be made integrally with a sticker.

Further, as shown in FIG. 6, in order to make it easier to pick out the auxiliary take-out part, it may be folded with two or more creases, and the tip of the auxiliary take-out part may be placed inside near the chuck part. At that time, methods such as perforation and embossing may be used to create creases. Although there are no particular specifications regarding the material and thickness of the chuck used, it is desirable that the sealant resin to be heat-sealed is a polyolefin resin having strong sealing strength. In the fixing part 7, the heat-sealing surfaces of the back film, front film, chuck member, and take-out auxiliary part are preferably made of polyolefin resin, and can be fixed by heating and cooling with heat sealing.

Further, the pouch may be used in conjunction with a slider chuck pouch that uses a slider component to open and close the pouch, and may be provided with a tongue-shaped removal assisting portion.

The take-out auxiliary part 4 has a take-out auxiliary part that spreads in a direction perpendicular to the width of one of the zipper tapes, and the take-out auxiliary part has a tongue shape whose width becomes narrower as it moves away from the interlocking part of the zipper tape. good.

It is desirable that the film stiffness of this take-out auxiliary part is about 30 mN/15 mm to 75 mN/15 mm; if it is too low, the take-out auxiliary part may deform and there is a risk of spilling the contents; on the other hand, if this stiffness is too high, There is a possibility that the removal auxiliary part is not easily deformed and may be difficult to take out. Therefore, it is preferable to use a take-out auxiliary part having a film stiffness within this range.

The film stiffness can be measured using, for example, Loop Stiffness Tester DA manufactured by Toyo Seiki Seisakusho Co., Ltd. As a method for measuring the film stiffness, a strip-shaped sample with a width of 15 mm and a length of 150 mm is set in the same apparatus, and a loop with a length of 100 mm is formed. This is the value obtained by pressing a probe with a sensor function from outside the loop and measuring the maximum load.

Although there is no particular specification regarding the material and thickness of the take-out auxiliary part, it is desirable that the front film or the back film and the fixing part 7 in contact with the chuck member be made of the same polyolefin resin. In particular, in the case of heavy bags, olefin resin is most suitable since high sealing strength and resistance to falling bags are required.

The take-out auxiliary part may also be a film laminated with another base film as long as both sides are made of polyolefin. Examples include biaxially oriented polyethylene terephthalate, biaxially oriented polyamide, biaxially oriented polypropylene, biaxially oriented polyethylene, aluminum foil, paper, etc., but are not particularly specified.

The mounting position of the ejecting auxiliary part may be as shown in the schematic plan view and cross-sectional view in FIG. As shown in the figure, it may be fixed to the back film by heat sealing at the fixing part 7 in parallel with the chuck member.

Further, the shape of the take-out auxiliary part is easy to use, such as a tongue shape, a triangular shape, an arc shape, etc., and when using it, it is sufficient if the take-out auxiliary part can be pinched out with fingers and covered with the chuck part. The chuck part is covered with an auxiliary part to take out the contents, and the auxiliary part is used as a guide to take out the contents.

Further, assuming that the length Y (vertical length perpendicular to the width) of the take-out auxiliary part is the length D inside the fixing part, it is desirable that the length Y is within the following range.
0.8×2D/π<Y<1.2×2D/π
This is because within this range, it is easy to take out the auxiliary take-out part, and it is also easy to store the auxiliary take-out part into the pouch after use. In other words, when the bag is opened, the opening of the bag is taken out in a substantially circular shape. If the protrusion from the pouch opening is short, it may be difficult to handle, and if it is large, it may be too long and difficult to handle. Therefore, the above range is desirable.

Further, in order to make it easier to take out the contents, a crease or a perforation may be provided in the central part of the removal auxiliary part in the direction in which the contents come out. This fold can be formed by embossing or crease processing using a pair of male and female dies. Further, in order to make the perforations penetrate or semi-penetrate at regular intervals, press processing using a knife or laser processing using a carbon dioxide gas method may be performed. Furthermore, as shown in the schematic plan view and cross-sectional view of Fig. 6, in order to make it easier to pick out the ejecting aid part, fold it with two or more creases and perforations, and place the tip of the ejecting aid part near the chuck part. It may be placed inside.

In addition, antistatic treatment may be applied to the ejection assisting portion, the front film, and the back film. Antistatic treatment is effective because it makes it easier to take out the contents without the powder sticking to them. The formulation can be supplemented with commonly used antistatic agents. For example, the generation of static electricity can be prevented by incorporating antistatic agents such as cationic surfactants and quaternary ammonium cations into the base film, or by coating them on the inside or outside of the film. This makes it easier to handle as it has an antistatic effect.

The chuck member and take-out auxiliary part used in the pouch of the present invention can be handled with a commonly used bag making machine. FIG. 7 shows a schematic diagram of the insertion part of the member of the take-out auxiliary part on the bag making machine, and FIG. 8 shows a schematic diagram of the bag making machine when the bottom material is used. From FIGS. 7 and 8, when creating a zippered pouch by combining the front film 1 (upper film on the bag making machine) and the back film 2 (lower film on the bag making machine), the punch 13 Insert the tongue-shaped take-out auxiliary part 8 and the chuck member 3, and align them to the predetermined positions using a special guide jig for stable insertion. The member 3 is welded and fixed to the front film 1 and the back film 2 by a heat sealing method using a chuck and a take-out auxiliary seal 9. By sequentially performing bottom sealing, side sealing, and punching, it is possible to continuously produce a zippered pouch having an auxiliary part for taking out contents according to the present invention. Furthermore, in the case of heavy bags, a gusset folding bag making machine using side members may be used.

Furthermore, the appearance of the pouches of the present invention manufactured using these bag-making machines is characterized by the same length of the back film, front film, zipper, and fixing part in the take-out auxiliary part, so that they can be distinguished.

Specific examples of the present invention will be described below.

<Example 1>
Using a laminate with the following layer configuration, the pouch size is 125 mm in width x 170 mm in height as shown in Fig. 3, and the take-out auxiliary part and the chuck member are laminated, and the back film, the take-out auxiliary member, the chuck member, and the front film are stacked. A pouch was created in which the length of the fixing part was the same as the pouch width of 125 mm.

[Back film and front film]
Packaging material composition: Biaxially oriented PET 12μm/Adhesive/Biaxially oriented Ny 15μm/Adhesive/LLDPE 100μm
Biaxially oriented PET 12μm: Toyobo Co., Ltd. E5200 One side corona treatment Biaxially oriented Ny 15μm: Unitika Co., Ltd. ONMB-RT One side easy adhesion treatment One side corona treatment LLDPE 100μm: Tamapoly Co., Ltd. MZ-561
Dry lamination adhesive: Mitsui Chemicals Polyurethane Co., Ltd. A-525/A-52
Dry coating amount 3g/ ^m2
[Chuck member]
Chuck member: Idemitsu Unitech LL-210
Chuck position: 25mm towards the bottom from the opening
[Ejecting aid part]
Material composition: MZ-561 manufactured by Tamapori Co., Ltd. Thickness 100μm
Length Y: 60mm

<Example 2>
Using a laminate consisting of the following layer configuration, the pouch size is 125 mm in width x 170 mm in height as shown in Figure 5, and the take-out auxiliary part and chuck member are integrated, the back film, the take-out auxiliary member, the chuck member, and the front surface. A pouch was created in which the length of the fixed part of the film was the same as the pouch width of 125 mm.
[Back film and front film]
Same as Example 1.
[Chuck member]
A chuck member having an ejection assisting part was created using the following LLDPE resin.
LLDPE resin: SP2020 manufactured by Mitsui Chemicals, Inc.
Chuck position: 25mm towards the bottom from the opening [Removal aid part]
Thickness: 100μm. It is integrated with the male fitting part of the chuck member.
Length Y: 60mm

<Comparative example 1>
Using a laminate having the following layer structure, an opening was opened in a zippered pouch with a width of 125 mm and a height of 170 mm as shown in Prior Document 1, and a take-out auxiliary part was fixed to the lower end of the chuck member by heat sealing. .
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
In the take-out auxiliary part of Example 1, the length Y was 60 mm, and the members excluding the fixing part related to the side seal part were fixed by heat sealing.

<Comparative example 2>
A pouch with a zipper having a width of 125 mm and a height of 170 mm was created as a blank using a laminate having the following layer structure.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.

<Example 3>
Using a laminate having the following layer structure, a zippered pouch having a stacked take-out auxiliary part with a width of 125 mm and a height of 170 mm as shown in FIG. 3 was created.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
Packaging material composition: LLDPE 50 μm / adhesive / biaxially stretched NY 15 μm / adhesive / LLDPE 50 μm
Biaxial stretching Ny 15 μm: Unitika Co., Ltd. ONMB-RT One side easy adhesion treatment, one side corona treatment LLDPE 50 μm: Tamapoli Co., Ltd. MZ-561
Dry lamination adhesive: Mitsui Chemicals Polyurethane Co., Ltd. A-525/A-52
Dry coating amount 3g/ ^m2
Length Y: 60mm

<Example 4>
Using a laminate having the following layer structure, a zippered pouch having a width of 125 mm x height of 170 mm and a take-out auxiliary part of 75 μm in thickness as shown in FIG. 3 was created.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
Material composition: MZ-561 manufactured by Tamapoli Co., Ltd. Thickness 75 μm
Length Y: 60mm

<Example 5>
Using a laminate having the following layer structure, a zippered pouch having a stacked take-out auxiliary part with a width of 125 mm and a height of 170 mm as shown in FIG. 3 was created.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
Packaging material composition: HDPE32μm/Adhesive/HDPE32μm/Adhesive/LLDPE50μm
Biaxial stretching Ny 15μm: Unitika Co., Ltd. ONMB-RT Single side easy adhesion treatment Single side corona treatment LLDPE 50μm: Tamapoli Co., Ltd. MZ-561
Dry lamination adhesive: Mitsui Chemicals Polyurethane Co., Ltd. A-525/A-52
Dry coating amount 3g/ ^m2
Length Y: 60mm

<Example 6>
Using a laminate having the following layer structure, a zippered pouch having a stacked take-out auxiliary part with a width of 125 mm and a height of 170 mm as shown in FIG. 3 was created.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
The material was the same as in Example 1, but the length Y was 40 mm.

<Example 7>
Using a laminate having the following layer structure, a zippered pouch having a stacked take-out auxiliary part with a width of 125 mm and a height of 170 mm as shown in FIG. 3 was created.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
The material was the same as in Example 1, but the length Y was 85 mm.

<Example 8>
Using a laminate having the following layer structure, a zippered pouch having a stacked take-out auxiliary part with a width of 125 mm and a height of 170 mm as shown in FIG. 3 was created.
[Back film or front film], [Chuck member]
Both are the same as in Example 1.
[Ejecting aid part]
The material was the same as in Example 1, but the length Y was 100 mm.

<Experiment 1>
Using the pouches of Example 1, Example 2, Comparative Example 1, and Comparative Example 2, the workability was evaluated when 300 g of common salt was filled and 50 g was taken out. The evaluation was based on the following four levels.
Evaluation) ◎: Excellent, 〇: Good, △: Average, ×: Bad, not possible

<Experiment 2>
The above experiment 1 was repeated, and the number of times the powder was taken out due to the powder getting caught in the chuck member resulting in poor fitting was indicated and evaluated on the following three levels.
Evaluation) ◎: 5 times or more, ○: 3 to 4 times, ×: 2 times or less

<Experiment 3>
The productivity of creating the above pouches was evaluated on the following three levels.
Evaluation) ◎: Capable of producing 6,000 bags/hour or more ○: Capable of producing 3,000 to 6,000 bags/hour ×: Capable of producing 0 to 3,000 bags/hour

<Experiment 4>
Using the pouches of Example 1, Example 3, Example 4, and Example 5, the waist strength of the take-out assisting part was measured. A strip-shaped sample obtained by cutting each member of the extraction auxiliary part into a size of 15 mm in width and 150 mm in length was set in a Loop Stiffness Tester DA device manufactured by Toyo Seiki Seisakusho Co., Ltd. to form a 100 mm long loop and a probe with a sensor function. was pressed from the outside of the loop, the maximum load was measured, and this was taken as the waist strength.

<Experiment 5>
Using the pouches of Example 1, Example 3, Example 4, and Example 5, the workability was evaluated when 300 g of common salt was filled and 50 g was taken out. The evaluation was based on the following four levels.
Evaluation) ◎: Excellent, 〇: Good, △: Average, ×: Bad, not possible

<Experiment 6>
Using the pouches of Example 1, Example 6, Example 7, and Example 8, the contents were filled with 300 g of common salt, and the retrieval performance of the retrieval aid when taking out 50 g was evaluated. The evaluation was based on the following four levels.
Evaluation) ◎: Excellent, 〇: Good, △: Average, ×: Bad, not possible

<Experiment 7>
Using the pouches of Example 1, Example 6, Example 7, and Example 8, the contents were filled with 300 g of common salt, and the ease of taking out the contents when taking out 50 g was evaluated. The evaluation was based on the following four levels.
Evaluation) ◎: Excellent, 〇: Good, △: Average, ×: Bad, not possible

From the results in Table 1, Examples 1 and 2 have a removal auxiliary part, so it is easy to take out the salt content, it does not fall into the zipper part, so it is difficult to get caught, and it can be continuously produced using a bag making machine. Therefore, an effect not seen before was obtained.

From the results in Table 2, we measured the film stiffness of the take-out auxiliary parts of Examples 1, 3, 4, and 5, and evaluated the retrieval properties of the take-out auxiliary parts. However, among them, Examples 1 and 3 were particularly easy to handle and were excellent.

From the results in Table 3, we evaluated the ease of taking out the auxiliary part for taking out and the ease of taking out the salt content in Examples 1, 6, 7, and 8. Examples 1 and 7 were particularly easy to handle and were excellent.

The above-described packaging body according to the invention is effective for preserving solid contents such as powdered proteins, granulated soups, and granulated gummies.

100. Pouch 1. Front film 2. Back film 3. Chuck member 4. Removal aid part 5. Side seal part 6. Opening 7. Fixed part 8. Removal aid part9. Chuck, ejection auxiliary seal 10. Bottom seal 11. Bottom material 12. Side seal 13. Punch punch 14. Punching 15. Guide roll D. Length Y inside the side seal part. Maximum length of ejection aid

Claims (7)

It includes at least a front film, a back film, a chuck member, and a content removal auxiliary part that assists in taking out the content, and two opposing sides of the front film and the back film are bonded together as a side seal part, and the A pouch having an opening between side seal portions,
The chuck member extends linearly in a first direction and has a pair of male fitting portions and female fitting portions that can be mated with each other, and the male fitting portion and the female fitting portion are , each fixed to the front film and the back film so that the pouch can be opened and closed,
The ejection auxiliary part is located on at least one of the chuck members, integrally with or in contact with the chuck member, and is moved from the opening toward the outside of the pouch so that at least a portion thereof is removed from the male part. It covers at least a portion of either the mold fitting part or the female mold fitting part, changes into a linear shape or a curved shape at the lower end sandwiched between the side seal parts, and the front film or the It is fixed with a sticker on the back film and the fixing part,
The length of the chuck member along the first direction, the length of the region of the front film and the back film fixed to the chuck member along the first direction, and the first direction of the fixing part. A pouch characterized by having the same length along the direction. The pouch according to claim 1, wherein the fixing part is located between the front film or the back film and the chuck member. 3. The content retrieval auxiliary part has a polyolefin layer on a surface in contact with the chuck member or a surface in contact with the front film or the back film in the fixing part. Pouch. The film stiffness of the member constituting the take-out auxiliary part is
The pouch according to any one of claims 1 to 3, characterized in that the strength is 30 mN/15 mm to 75 mN/15 mm. The pouch according to any one of claims 1 to 4, wherein the take-out auxiliary part is a laminate in which a polyolefin, a stretched base film, and a polyolefin are laminated in this order. It has side seal parts on the left and right sides, and the maximum length Y of the ejection auxiliary part in a direction perpendicular to the first direction is relative to the length D inside the left and right side seal parts of the fixing part, The pouch according to any one of claims 1 to 5, wherein the pouch satisfies the following formula (1).
0.8×2D/π<Y<1.2×2D/π (1) The pouch according to any one of claims 1 to 6, characterized in that a perforated or embossed valley fold line is provided at a central portion of the ejection auxiliary portion in the first direction.

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