JP7131043B2 - packaging bag - Google Patents

Description

TECHNICAL FIELD The present invention relates to a packaging bag, and more particularly to a packaging bag that can accommodate powdery or granular contents and can be used by shaking out small amounts.

Conventionally, when powdery or granular contents are shaken out little by little, a glass container with a perforated cap attached to the top, a metal can with a perforated top surface, or the like is used. The contents include relatively fine particle size seasonings and spices such as pepper, chili powder, and salt, as well as relatively large particle size ingredients such as shichimi chili pepper, green seaweed, and furikake.

Since the above glass containers and metal cans are more expensive than soft packaging bags, there has been a demand for inexpensive packaging bags that can be directly taken out in small quantities. The packaging bag described in Patent Literature 1 is a packaging bag having a weighing section at the top of the bag and a narrowed volume setting area provided between the bag and the storage section. In this packaging bag, the contents stored in the storage part are weighed by the weighing part, and the contents can be discharged in fixed amounts.

Although the packaging bag described in Patent Document 1 has a narrowed volume setting area, it is not suitable for use by shaking out the contents.

The packaging bag described in Patent Document 2 can be partially divided and taken out little by little from a packaging bag containing products of various shapes and properties such as granular, liquid, and powdery. It is a packaging bag in which the amount taken out can be adjusted.

The packaging bag described in Patent Document 2 is provided with a seal band on the upper portion of the storage portion and a non-seal portion on a part of the seal band. By adjusting the width of the non-sealed part according to the particle size of the contents, it is possible to handle contents of various particle sizes. It is sufficient if one confectionery is discharged at a time. Since there is only one non-sealed portion, it cannot be applied to, for example, sprinkling.

The packaging bag described in Patent Literature 3 is a packaging bag suitable for shaking out an appropriate amount of contents (mainly granules and powder). This packaging bag has pleats that protrude outward from either the front or back surface of the packaging bag, and is shaken out while holding the contents in the pleats.

The packaging bag described in Patent Document 3 is essentially the same as a normal non-pleated packaging bag, and there is a risk that an excessive amount may be thrown out depending on the degree of swinging the hand. It is the same with respect to the point that there is a property.

JP 2004-306985 A Utility Model Registration No. 3155961 JP 2012-250736 A

The problem to be solved by the present invention is to store contents such as powdered cheese and furikake, which are difficult to discharge in large quantities at once, and to securely and safely shake out a small amount at a time for use, and a small amount on a wide surface. To propose a packaging bag which can be shaken out one by one.

As a means for solving the above-mentioned problems, the invention according to claim 1 has the sealant layers of the surface laminate and the back laminate, each having a base material layer and a sealant layer, facing each other and heat-sealing the peripheral edges. A packaging bag having a storage portion, wherein an opening is provided under a top seal portion at the top and parallel to the top seal portion, and a front side is provided under the planned opening position of the opening. It has a resealable synthetic resin fastener fused to the back laminate, and is composed of a plurality of small seal portions extending over the entire width of the packaging bag between the synthetic resin fastener and the storage portion. has a regulatory department,
In the packaging bag, the discharge restricting portion is formed by arranging two rows of dot-like small seal portions in a zigzag pattern .

The packaging bag according to the present invention is equipped with a resealing fastener, and is provided with a discharge control section between the fastener and the storage section to prevent the contents from being discharged all at once. You can shake things out and take out what you need.

Moreover, invention of Claim 2 is a packaging bag of Claim 1 characterized by the opening guidance line being provided in the said opening planned position.

Further, the invention according to claim 3 is the packaging bag according to claim 1 or 2 , characterized in that the distance between the synthetic resin fastener and the discharge control part is 2 cm or more.

Further, the invention according to claim 4 is the packaging bag according to any one of claims 1 to 3 , wherein the base material layer includes a gas barrier layer that suppresses permeation of water vapor and oxygen. be.

Further, the invention according to claim 5 is characterized in that a full unsealing start section for finally unsealing is provided under the discharge control section . is a packaging bag.

Further, the invention according to claim 6 is a bottom laminate in which the sealant layers of the front and back laminates are opposed to each other, and the sealant layer is bent in an inverted V shape between the lowermost front and back laminates with the sealant layer facing outward. 6. The packaging bag according to any one of claims 1 to 5, wherein the bottom portion is formed by inserting and heat-sealing the peripheral edge.

Since the packaging bag according to the present invention has a discharge regulating portion formed of a plurality of small seal portions extending over the entire width of the packaging bag in the upper portion of the storage portion, powdery materials and granular materials stored in the storage portion A large amount is not unintentionally discharged at once, and it can be reliably shaken out and used in small amounts over a wide area.
A resealable composite fused to the front and back laminates under the topmost top-seal portion and having an opening parallel to said top-seal portion. Since it has a resin fastener, even if the contents remain, the opening can be resealed with the fastener, which is convenient for storage.

When the emission control portion is formed by arranging two rows of dot-like small seal portions in a zigzag pattern as in the second aspect of the invention, the length of the emission control portion can be shortened, and Not only is the emission control effect high, but the interval between the small seal portions can be widened, so the quality is stable.

As in the third aspect of the present invention, when the unsealing guide wire is provided at the planned opening position, the unsealing operation is smoothly performed and the cut edge is clean.

When the distance between the synthetic resin fastener and the discharge regulating portion is 2 cm or more as in the fourth aspect of the invention, it becomes easy to hold the fastener in an open state, and the contents can be shaken out. becomes smoother.

When the substrate layer includes a gas barrier layer that suppresses permeation of water vapor and oxygen, as in the fifth aspect of the invention, long-term storage stability in an unopened state can be enhanced.

As in the sixth aspect of the invention, when a full unsealing starting portion for finally unsealing is provided under the discharge regulating portion, it is convenient for completely taking out the last remaining contents. be.

Furthermore, as in the invention according to claim 7, between the lowermost front and back laminates, a bottom laminate bent in an inverted V shape with the sealant layer on the outside is inserted, and the peripheral edge is heat-sealed to seal the bottom surface. In the case of a so-called standing pouch shape in which a .

FIG. 1 is an explanatory plan view schematically showing one embodiment of a packaging bag according to the present invention. FIG. 2 is a cross-sectional explanatory view schematically showing the AA' cross section of FIG. FIG. 3 is an explanatory plan view schematically showing another embodiment of the packaging bag according to the present invention. FIG. 4 is an explanatory plan view schematically showing another embodiment of the packaging bag according to the present invention.

A packaging bag according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory plan view schematically showing one embodiment of a packaging bag according to the present invention. Further, FIG. 2 is a cross-sectional explanatory view schematically showing the AA' cross section of FIG.

The packaging bag 1 according to the present invention comprises a top seal portion 5, a side seal portion 6, and a top seal portion 5, a side seal portion 6, and a top seal portion 5, a side seal portion 6, and a top seal portion 5, a side seal portion 6, and a top seal portion 5, a side seal portion 6, and a top seal portion 5, a side seal portion 6, and a top seal portion 5. 7. A packaging bag in which a bottom seal portion 8 is formed and a storage portion 9 is formed. An opening parallel to the top seal portion 5 is provided under the uppermost top seal portion 5 and is opened by opening from the unsealing start portion 14, and below the planned opening position of the opening. , a resealable synthetic resin fastener 13 fused to the front and back laminates, and a plurality of small seal portions 12 extending over the entire width of the packaging bag between the synthetic resin fastener 13 and the storage portion 9. It is a packaging bag characterized by having a configured discharge control portion 11.

The discharge restricting portion 11 is formed by arranging a plurality of small seal portions 12 over the entire width of the packaging bag 1. In the embodiment shown in FIG. They are arranged in a staggered pattern.

As for the configuration of the discharge restricting portion 11, the small seal portions 12 may be arranged in a horizontal row as in the example shown in FIG. If the interval between the portions 12 is narrowed, there is a risk that the adjacent small seal portions will often be fused and connected due to residual heat.

By arranging the small seal portions 12 in a zigzag manner with the small seal portions 12 shifted in two rows, a large amount of liquid can be prevented from flowing out without narrowing the interval between the small seal portions. The size and arrangement of the small seal portion 12 in the discharge control portion 11 may be appropriately determined according to the particle size and properties of the contents.

In FIG. 1, if the distance between the synthetic resin fastener 13 and the discharge restricting portion 11 is L, it is desirable that L is 2 cm or more. If L is too short, even if the synthetic resin fastener 13 is opened, it cannot be sufficiently opened, making it difficult to shake out the contents.

In the example shown in FIG. 3, an unsealing guide wire 15 is provided between the unsealing start portions 14, 14 provided on the left and right side seal portions 6, 7. As shown in FIG. The unsealing guide line 15 is a half-cut line provided in the base material layer of the front and back laminated body, so that the tear of the laminated body starting from the unsealing start part progresses straight, so that unsuccessful opening is unlikely to occur. Also the cut is clean. A half-cut line can be formed using a cutter or a laser processing machine.

As the opening start portion 14, an I-shaped notch, a V-shaped notch, a U-shaped notch, a plurality of minute notches, or the like is used.

In the example shown in FIG. 3, a full unsealing starter 16 for final unsealing is provided under the discharge restricting unit 11 . By tearing the packaging bag 1 in the horizontal direction from the full opening start part 16, all the contents existing in the storage part 9 can be taken out neatly. As for the shape of the full unsealing start portion 16, an arbitrary shape can be adopted as with the unsealing start portion 14 described above.

FIG. 4 is an explanatory plan view schematically showing another embodiment of the packaging bag according to the present invention. In this example, the sealant layers of the front and back laminates 2 and 3 are opposed to each other, and the bottom laminate 4 is inserted between the lowermost front and back laminates with the sealant layer facing outward and bent in an inverted V shape. , a so-called standing pouch in which the bottom portion 10 is formed by heat-sealing the periphery. By adopting the shape of a standing pouch, the capacity can be increased and the self-supporting property is imparted, thereby further enhancing the convenience.

The structure of the laminate used for the packaging bag 1 according to the present invention must be a laminate having at least a base material layer and a sealant layer. Various synthetic resin films can be used as the substrate layer. Specifically, polyester resins such as polypropylene resin (PP), polyethylene terephthalate resin (PET), polybutylene terephthalate resin (PBT), polyethylene naphthalate resin (PEN), and polyamide resins such as nylon-6 and nylon-66 A single film such as a resin, a polycarbonate resin (PC), or a combination thereof.

The substrate layer may include a gas barrier layer that suppresses permeation of water vapor and oxygen. As the gas barrier layer, polyvinylidene chloride film, polyvinyl alcohol film, ethylene vinyl alcohol copolymer film, gas barrier nylon film, gas barrier polyethylene terephthalate (PET) film, etc., and metal such as aluminum on PET film, etc. or an inorganic oxide deposited film obtained by depositing an inorganic oxide such as aluminum oxide or silicon oxide on a PET film, or a polyvinylidene chloride coating, a coating containing a water-soluble resin and an inorganic layered compound, or A gas barrier coating layer such as a resin layer formed by reacting a metal alkoxide or a hydrolyzate thereof with an isocyanate compound, or a metal foil such as an aluminum foil can be used.

As the sealant layer, polyolefin-based resins are generally used, and specifically, low-density polyethylene resin (LDPE), medium-density polyethylene resin (MDPE), linear low-density polyethylene resin (LLDPE), ethylene-acetic acid Ethylene-based resins such as vinyl copolymer (EVA), ethylene-α-olefin copolymer, ethylene-methacrylic acid resin copolymer, blended resin of polyethylene and polybutene, homopolypropylene resin (PP), propylene-ethylene Polypropylene-based resins such as random copolymers, propylene-ethylene block copolymers, and propylene-α-olefin copolymers can be used.

A dry lamination method using an adhesive is generally used as a method for laminating these layers.

<Example 1>
As a substrate layer, after printing on the deposition surface of a gas barrier film (GL film manufactured by Toppan Printing Co., Ltd.) in which an inorganic metal oxide is deposited on a PET film with a thickness of 12 μm, a sealant layer with a thickness of 60 μm is formed on the printed surface side. of LLDPE film was dry laminated.

Using this laminate, a packaging bag as shown in FIG. 1 was prepared and filled with furikake as a content. The filling was performed from the unsealed bottom seal portion.

When the resulting package was unsealed from the unsealing start portion at the bottom of the top seal portion, the zipper was opened, and the sprinkles that were the contents were shaken out, a large amount of sprinkles could not be discharged at once, and the sprinkles could be properly taken out. rice field.

REFERENCE SIGNS LIST 1 packaging bag 2 surface layered body 3 back side layered body 4 bottom layered body 5 top seal portions 6 and 7 side seal portions 8 bottom seal portions 9... Receiving part 10... Bottom part 11... Discharge control part 12... Small seal part 13... Synthetic resin fastener 14... Opening start part 15... Opening guide wire 16.・・・Full opening start part L・・・Distance between the synthetic resin fastener and the emission control part

Claims (6)

A packaging bag in which the sealant layers of the surface laminate and the back laminate, each having a base material layer and a sealant layer, are opposed to each other, and the peripheral edges are heat-sealed to form a storage portion, wherein the top seal portion at the top provided, an opening parallel to the top seal portion is planned, and a resealable synthetic resin fastener fused to the front and back laminates is provided under the planned opening position of the opening , a discharge restricting portion composed of a plurality of small seal portions extending over the entire width of the packaging bag is provided between the synthetic resin fastener and the storage portion ;
A packaging bag , wherein the discharge restricting portion is formed by arranging two rows of dot-like small seal portions in a zigzag pattern . 2. The packaging bag according to claim 1 , wherein an unsealing guide line is provided at the expected opening position. 3. The packaging bag according to claim 1 , wherein the distance between the synthetic resin fastener and the discharge control portion is 2 cm or more. The packaging bag according to any one of claims 1 to 3, wherein the base material layer includes a gas barrier layer that suppresses permeation of water vapor and oxygen. 5. The packaging bag according to any one of claims 1 to 4, further comprising a full unsealing starting portion for final unsealing provided under the discharge regulating portion. The sealant layers of the front and back laminates are opposed to each other, and the bottom laminate bent in an inverted V shape with the sealant layer facing outward is inserted between the lowermost front and back laminates, and the periphery is heat-sealed to form the bottom surface. 6. The packaging bag according to any one of claims 1 to 5, wherein a portion is formed.

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