JP2002308341A - Gas releasing tape installed at bag or container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a check valve in which a gas releasing tape is installed at either a bag or a container, gas generated from stored items such as coffee beans or the like is released out of the bag through the gas releasing tape so as to prevent various kinds of germs from entering into the bag from outside the bag. SOLUTION: There is provided a gas releasing tape installed at either a bag or a container for stored items generating ethylene gas and gas. Several hundreds of ultra fine threads 1 are bundled to form a spreading threads 3 with a clearance of 1 μm. The spreading threads 3 are insert molded into a central part of a cylinder 4 formed by polyethylene.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a container for releasing ethylene gas and a gas generated by a chemical reaction or the like, for example, fermented foods such as rice, fruit, fresh fish, fresh meat, miso, and various cooked products. Prepared in bags or cans containing gas-producing solids (coffee beans, coffee powder, etc.), exhaust gas generated in bags and pipes to the outside to prevent oxygen, germs and outside moisture from entering the inside, Further, the present invention relates to a gas release tape for preventing the invasion of air from the outside even at the time of negative pressure in a bag and holding the contents well.

2. Description of the Related Art The simplest degassing mechanism conventionally used is one in which a small hole for degassing is simply formed in a part of a bag.

[0003] Further, there is a gas vent valve in which a child hole is formed in a bag and a gas vent valve is attached in accordance with the child hole (see, for example, FIG. 3 of Japanese Utility Model Application Laid-Open No. 6-57861).

[0004] However, in the case where a small hole is formed in a part of the one bag, when the outside air is heated or the outside air is heated, various germs enter the opening and the stored contents are removed. There was mold. 6-57861
In the case of the check valve shown in (1), a hole is made in the bag, the hole must be aligned with the vent hole of the check valve, and the check valve must be adhered. There is a problem in the processing accuracy and cost etc. of the check valve in order to adhere to the place of the round, and furthermore, since the hole is made in the container, dust, insects, etc. adhere to the hole and the gas release effect There are many drawbacks, such as hindering.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been devised to newly degas a tape having the function of a check valve. In the center of the molded cylinder, hundreds of ultra-fine yarns made of polyester film, such as polypropylene, polyethylene, nylon, etc., are bundled with a void of less than 1 micron, and are formed by insert molding. It is intended to provide a gas venting tape which is flexible and can be easily heat-sealed and molded into a container, does not make a hole in the container unlike a conventional check valve, and has a gas vent hole of 1 micron or less. This is a degassing tape using a film material that is a void, does not allow germs to enter from the outside, and does not mold the contents, and does not eject liquid.

[Means for Solving the Problems] The present invention has been devised to solve the above problems, and in the invention according to the first aspect, a bag or container for a container generating gas is provided. The gas vent tape cuts an ultra-thin film made of nylon, polypropylene, polyethylene, polyester, or the like into an ultrafine thread (1), and has a gap of 1 micron or less between the threads. (2) Formed and bundled spread yarn (3) or a hole made of nonwoven fabric and the distance between the yarn and the yarn is 1 micron or less, and the bundle-like spread yarn (3) is formed of polyethylene. This is a venting tape that is insert-molded into the central portion of the formed cylinder (4) and integrally cultivated.

According to the second aspect of the present invention, the extra-fine yarn (1) of the degassing tape has an outer diameter of 1 micron or less and is formed in a corrugated shape and a V shape.

According to the third aspect of the present invention, the center of the cross section of the cylinder (4) of the gas release tape is a rectangle (5),
Both end faces have the shape of a letter (6
a, 6b).

[Embodiment of the Invention] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the entire configuration of the gas release tape according to the present invention. Reference numeral 1 denotes a yarn obtained by cutting an ultra-thin film made of nylon, polypropylene, polyethylene, polyester, or the like into an extremely thin strip. The diameter of the ultrafine yarn is 1 μm or less at maximum and several hundreds of yarns form voids of 1 μm or less, and are bundled by the yarn of 1 μm or less to constitute the spread yarn 3. 4
Is a cylindrical body made of polyethylene, which is insert-molded so that the spread yarn 3 is arranged at the center, and constitutes a degassing tape main body. .

FIG. 2 is a plan view of the gas release tape 4, in which a very fine thread is disposed at the center with a space of 1 micron, and the center 5 is a rectangular body at both ends as shown in the AA section of FIG. "Ku-shaped" formed with both ends inclined toward the center
6a and 6b. Fig. 4
It may be configured in a wavy or square shape as shown in FIG.

FIG. 5 shows a state in which the gas generated from the stored material is released to the outside by attaching the gas release tape body to the bag. Reference numeral 4 denotes a gas release tape body, and a bag 8
And one is located inside and the other is located outside, and is heat-sealed and formed in the bag 8. Reference numeral 9 denotes a container for generating gas such as fresh fish, rice, miso, and coffee beans. When gas G is generated from the container 9, the gas G in the bag 8 increases in gas pressure, and the pressure difference between the gas G and the outside increases. It is sucked into the space of 1 micron or less provided between the yarn of the ultrafine yarn 1 provided on the spread yarn 3 of the gas release tape main body 4 and released to the outside. Furthermore, it communicates with the outside air through a 1 micron gap,
Since the inside of the bag 1 is constantly in a sealed state and gas pressure is applied, the outside air does not enter the inside of the bag 1 and is a gas release tape equipped with a kind of check valve effect.

FIG. 6 shows a paper bag in which a gas release tape main body 4 is provided. The gas vent tape body 4 may be inserted into the mating surface of the bag in the same manner as described above, but it can also be inserted into a sealed opening at the top of the bag. .

[Effects of the Invention] As described above, the present invention relates to a container for releasing gas generated by a chemical reaction or the like, for example, fermented foods such as rice, fruit, fresh fish, fresh meat, miso, and various kinds of cooking. In a bag or can containing a product or gas-generating solids (coffee beans, coffee powder, etc.), the gas generated in the bag or can can be released to the outside by the opening yarn of the gas release tape. Furthermore, it can satisfy the check valve effect for preventing the invasion of oxygen and various bacteria from the inside from the outside, and can be stored well without causing the mold to mold. The thickness of the degassing tape is made extremely thin, and the both ends are flattened in the shape of a letter. I can do it.

[Brief description of the drawings]

FIG. 1 is a view showing a configuration of a gas release tape main body according to the present invention.

FIG. 2 is a view showing a configuration of a spread yarn 4;

FIG. 3 is a view showing a cross section of the spread fiber AA in FIG. 2;

FIG. 4 is a diagram in which the yarn 1 of the spread yarn 4 is formed in a wave shape.

FIG. 5 is a view showing a state in which a gas release tape body 4 is mounted on a bag 8 and gas is released.

FIG. 6 is a view showing a paper bag equipped with a gas release tape.

[Explanation of symbols]

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 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E064 EA18 HD07 HE10 3E067 AB02 AB04 AB08 AB09 AB23 AB24 AC01 BA12A BB14A EA06 EB22 EE60 FA01 FB07 FC01 GB03 GD01 GD02

Claims (3)

[Claims] 1. A gas release tape provided in a bag or container for containing roasted products such as cereals and coffee, fruits and vegetables, fresh food, etc., wherein the gas release tape is made of nylon, polypropylene or polyethylene. , An ultra-thin film made of polyester is cut into an ultra-fine thread shape, and a gap of 1 micron or less is formed between the threads to form a spread yarn or a non-woven fabric, etc. The spacing is 1 micron or less, etc., and the bundled spread yarn is insert-molded into the center of a cylindrical body formed of polyethylene to form an integral structure, and the gas release tape is inserted into a bag or container to form a bag or container. A gas release tape having a check valve effect for releasing gas generated from the inside of the inside to the outside and preventing outside air from entering. 2. The outside diameter of the extra fine thread of the gas release tape is 1
2. The gas release tape according to claim 1, wherein the tape has a corrugated shape and a U-shape in a micron size. 3. A tubular body of the gas release tape has a rectangular cross-section, and both end surfaces are formed in a U-shape to be inclined toward the center, so that the gas release tape is heat-welded to bags and containers. The gas release tape provided in the bag or the container according to claim 1, wherein the gas release tape can be welded without any gap in the step (a).