JP2002234574A - Packaging bag and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag wherein the contents of the packaging bag are separately sealed and packaged in one packaging bag until they are used, and when they are used, by unsealing the packaging bag, the contents, as a whole, can be mixed one with another, and to provide a method for manufacturing the packaging bag. SOLUTION: In the packaging bag wherein two or more contents are separately stored in each of inner layers and each of the inner layers is composed of a heat-sealable resin layer, a closely adhered part where the inner layers are in close contact with each other is formed in the packaging bag, whereby two or more contents are separated by the adhered part and stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for separately storing two or more contents and a method for producing the same, and more particularly, to separating the contents from solids (including soft bodies), granules, powders, viscous bodies, and the like. The present invention relates to a packaging bag to be stored and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, it is desirable to separate them until use, and to mix or integrate them for the first time at the time of use. Yellow flour and sugar to be put on rice cakes are usually put in separate packaging bags or containers until they are eaten, and sold together as a set. Then, immediately before eating, the bracken rice cake is taken out of the packaging bag or the container, and the bracken rice cake is eaten with yellow powder or sugar stored in another bag. The reason that bracken rice and yellow flour and sugar are separated just before eating in this way is that if yellow flour and sugar are mixed in advance with bracken rice cake, it becomes sticky when yellow flour and sugar are eaten, and the taste is impaired. This is because the commercial value is lost.

[0003] However, if the bracken rice cake and the yellow flour and sugar are separately packaged as described above, first, when eating, the packaging bags containing the yellow flour and the sugar are respectively opened, taken out into a container or the like, and mixed. Next, the sugar-containing yellow powder is put on the warabi-mochi, or the sugar-containing yellow powder is coated with the warabi-mochi, and eaten. The work of taking out the yellow powder and the sugar from the packaging bag and mixing them together Applying yawara mochi to sugar-containing yellow powder is a rather time-consuming task.
For children and the like, there is a possibility that the clothes may be stained, and there is a demand for a simpler operation and a packaging bag which is less likely to stain the clothes.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and has as its object to seal each content in a single packaging bag in an independent state until use. It is an object of the present invention to provide a packaging bag which can be packaged and whose contents can be easily integrated and mixed by opening the packaging bag at the time of use, and a method of manufacturing the same.

[0005]

Means for Solving the Problems In order to achieve the above object, the present inventors have set forth the invention as set forth in claim 1, wherein the inner layer containing two or more contents separately contains a heat-adhesive resin layer. The bag is characterized in that a close contact portion in which the inner layers are in close contact with each other is formed in the packaging bag, and two or more contents are separately stored by the close contact portion. With such a configuration, a packaging bag in which two or more contents are separately stored in one bag in an independent state can be obtained.

According to a second aspect of the present invention, there is provided a method for manufacturing a packaging bag according to the present invention, in which a packaging bag having an opening is provided for separately storing two or more contents and separately storing two or more contents. It is characterized by comprising a vacuum step of applying a vacuum to the packaging bag and a thermal bonding step of thermally bonding and sealing the opening of the evacuated packaging bag. By employing such a manufacturing method, two or more contents can be easily separated and stored in a single packaging bag in an independent state.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The above-mentioned present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view showing an embodiment of the packaging bag of the present invention, FIG. 2 is a cross-sectional view taken along line XX of FIG. 1, FIG. 3 is a sectional view taken along the line Y-Y, wherein 1 and 1 ′ are packaging bags, 2 is a contact portion, 3 is a notch for opening, 10 is a heat bonding portion, 20 is a chuck (Chuck) tool, and 30 is a division. Plates, A, B and C indicate contents, respectively.

FIG. 1 is a plan view showing an embodiment of a packaging bag according to the present invention, and FIG. 2 is a sectional view taken along line XX of FIG.
Is a four-sided seal-type packaging bag in which three types of contents A, B, and C are separated and stored separately at the close-contact portion 2, and the close-contact portion 2 is used to store the three types of contents A, B, and C described below. Then, the inside of the packaging bag 1 is tightly brought into contact with each other by vacuum-evacuating the inside of the packaging bag and thermally bonding the opening. And packaging bag 1
Has an opening notch 3 for facilitating removal of the contents.

As a material for forming the packaging bag 1, at least the inner layer is formed of a heat-adhesive resin layer because of the necessity of sealing by heat bonding. The material for forming the heat-adhesive resin layer may be a layer formed from a heat-adhesive resin that can be melted by heat and welded to each other, and may be appropriately selected according to the physical properties required for the packaging bag. It ’s good,
For example, low density polyethylene, medium density polyethylene,
High-density polyethylene, linear (linear) low-density polyethylene, polypropylene, ethylene-α-olefin copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer , An ethylene-methyl acrylate copolymer and an ethylene-methacrylic acid copolymer.

Next, as a material constituting the outer layer of the packaging bag 1, a synthetic resin film having excellent properties in mechanical, physical, chemical and the like is used because it is a basic material constituting the packaging bag. For example, polyester-based, polyamide-based, polypropylene-based, and polyacetal-based resins can be used. In addition, as a film using these resins, any of an unstretched film, or a stretched film stretched in a uniaxial or biaxial direction can be used, and the thickness of the film is used as a basic material. The strength, rigidity, and the like of the sheet need only be a thickness that can be held to the minimum necessary, and may be determined in consideration of cost and the like. In addition, the synthetic resin film used as the outer layer is usually printed on the inner layer side of the synthetic resin film in many cases, and printability is required, so that the film is stretched in a uniaxial direction or a biaxial direction. Stretched films are preferred. Cellophane can be used depending on the physical properties required for the packaging bag.

Furthermore, the packaging bag of the present invention contains oxygen gas,
If necessary, an intermediate layer may be provided between the inner layer and the outer layer in order to provide a gas barrier property such as a steam gas and / or a light shielding property. As a material for forming this intermediate layer, for example, aluminum, iron, copper,
Metal foils such as tin, or films such as polyvinyl alcohol, saponified ethylene-vinyl acetate copolymer, polyvinylidene chloride, or polyolefins such as polyester, polyamide, polyethylene, polypropylene, ethylene-propylene copolymer, and polyvinyl alcohol A film obtained by coating polyvinylidene chloride on such a film or a film on which an inorganic substance such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, and zirconium oxide is deposited can be used. The intermediate layer not only imparts the above-mentioned gas barrier properties and / or light-shielding properties, but also, for example, mechanical toughness, bending resistance, puncture resistance, impact resistance, cold resistance, and heat resistance. And a material capable of imparting functions such as chemical resistance and the like, and imparting the above-mentioned gas barrier properties and / or light-shielding properties to, for example, polyester, polyamide, polyethylene, polypropylene, ethylene-propylene copolymer and the like. It may be used in combination with a film such as polyolefin.

The outer layer is formed by coating the above-mentioned synthetic resin film with polyvinylidene chloride or by forming an evaporated layer of an inorganic substance such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, and zirconium oxide. When used, the intermediate layer for imparting gas barrier properties and / or light shielding properties may not be used, but if necessary, for example, mechanical toughness, bending resistance, piercing resistance In order to impart functions such as impact resistance, cold resistance, heat resistance, chemical resistance, etc., for example, a kind of film such as polyester, polyamide, or a polyolefin such as polyethylene, polypropylene, ethylene-propylene copolymer, etc. Or more than one can be used as an intermediate layer. The packaging bag of the present invention is a vacuum package, and it is preferable to use a material having at least excellent gas barrier properties as a material constituting the outer layer and / or the intermediate layer. Further, for the purpose of imparting easy-opening property to the packaging bag, the outer layer and / or the intermediate layer may be formed by using a film stretched in a uniaxial direction or forming a scar group, for example. Can be used.

Next, a method of using the packaging bag of the present invention will be described with reference to FIG. As the three types of contents A, B, and C stored in the packaging bag 1 shown in FIG. 1, for example, A is bracken rice, B is yellow powder, and C is sugar. Then, these three kinds of contents are separated and stored through the close contact portion 2 by vacuum packaging. First, the user partially opens the packaging bag 1 from the opening notch 3, naturally introduces outside air into the packaging bag 1, and separates the close contact portion 2 of the inner layer formed by vacuum packaging. The three types of contents A, B, and C are made into a state in which the three types of contents A, B, and C can be integrated.
C is mixed, and when the mixing is completed, packaging bag 1
Are all opened, and the three types of mixed contents A, B,
C can be transferred to a container or the like and eaten.

As described above, in the packaging bag of the present invention, since the three kinds of contents are separately stored in one packaging bag until immediately before eating, the taste is not impaired and the mixing time is reduced. Also, the possibility of soiling the clothes can be greatly reduced.

Next, a method of manufacturing a packaging bag according to the present invention will be described with reference to FIGS. First, the notch for opening the two heat-bonded portions 10 adjacent to the opening, with the opening of the four-side seal type packaging bag 1 ′ having three peripheral edges having an opening on one side thermally bonded by the heat-bonded portion 10 facing upward. 3 parts to chuck tool 20
And press the dividing plate 30 for physically dividing the inside of the packaging bag 1 ′ into three from both outer sides of the packaging bag against the packaging bag 1 ′. In this state, the packaging bag 1 ′ is divided into three. The three kinds of contents A, B, and C are separated and stored in the inside using a contents filling device (not shown) (separate storage step), and then the separated and stored packaging bags 1 'are kept in the above-described state in a vacuum device. (Vacuum process) in a vacuum device (not shown), and the opening portion of the evacuated packaging bag 1 'is thermally bonded and sealed (thermal bonding process). It is possible to obtain the packaging bag 1 of the present invention, which is separated and stored in the close contact portion 2 where the inner layers shown in FIG. Although not shown, in the sorting and storing step of storing the contents in the packaging bag 1 ′, the opening of the packaging bag 1 ′ is opened in order to easily store the contents in the packaging bag 1 ′. A suction tool or the like is provided. The filling of the three types of contents into the packaging bag 1 ′ may be performed simultaneously with the three types of contents or sequentially. 3 and 4, the packaging bag 1 '
Although the dividing plate 30 is provided in the direction orthogonal to the opening of the packaging bag, the dividing plate is provided in a direction parallel to the opening of the packaging bag, although not shown, to divide the inside of the packaging bag. The contents may be sequentially filled.

Further, in the embodiments described above, three types of contents have been described. However, the contents are illustrated for better understanding of the present invention, and the present invention is not limited to this. Not something. In addition, the contents are not limited to food, and it is desirable that two or more contents are separately stored until immediately before use, that is, a chemical reaction occurs by mixing, and the contents can be used over time. It may be a substance that disappears. Further, the form of the packaging bag is not limited to the form of the four-sided seal type shown in the embodiment, but the three-sided seal type, the gusset type,
It can be applied to various types of packaging bags such as a pillow type and a standing type.

[0017]

As described above, the packaging bag of the present invention is sealed in one packaging bag in a state where the respective contents are independent until the time of use, and the packaging bag is opened at the time of use. This has an excellent effect that the respective contents can be easily integrated and mixed. Further, the method for manufacturing a packaging bag according to the present invention has an excellent effect that two or more contents can be easily separated and stored in one packaging bag.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a packaging bag of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a diagram illustrating a method for manufacturing a packaging bag of the present invention.

FIG. 4 is a sectional view taken along line YY of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1 'Packaging bag 2 Adhesion part 3 Opening notch 10 Thermal bonding part 20 Chuck 30 Split plate A, B, C Contents

Continued on the front page (72) Inventor Hitoshi Kyotani 1-1-1, Ichigaya-Kaga-cho, Shinjuku-ku, Tokyo F-term in Dai Nippon Printing Co., Ltd. (reference) 3E053 AA06 BA04 BA05 FA01 GA02 JA10 3E067 AA04 AA05 AA11 AB01 AC06 BA12A BA31A BB14A BB15A BB16A BC04A CA04 CA12 CA24 EA09 EB07 EC14 EE59 FA01 FB11 FC01 GD07

Claims (2)

[Claims] 1. A packaging bag in which an inner layer separately containing two or more contents is made of a heat-adhesive resin layer, wherein the packaging bag forms an intimate contact portion in which the inner layers are in close contact with each other. A packaging bag wherein two or more contents are separately stored. 2. A separating and storing step of separating and storing two or more contents in a packaging bag having an opening, a vacuum step of evacuating a packaging bag in which two or more contents are separately stored, and evacuated packaging. And a heat bonding step of sealing the opening of the bag by heat bonding.