JP2003054643A - Portable cold-insulating bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable cold-insulating bag which is excellent in cold insulating properties and is not bulky. SOLUTION: The portable cold-insulating bag comprises an outer bag 7 having a base comprising a nonwoven fabric 1 made of a thermoplastic synthetic resin, handle pieces 6a and 6b on both opposite surfaces of an opening 8 and a folding lid 9 of the opening 8 extended from one of other surfaces. An object 14 to be cold-insulated is received in a cold insulating agent inner bag 10 made of a composite layer comprising a laminate including an internal surface of a thermoplastic synthetic resin film 3 and an external surface of an aluminum deposited film 2 in the inside 12 of the outer bag 7. The inner bag 10 is put in the inside 12 of the outer bag 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable cold-keeping bag for keeping an article stored therein cool by blocking heat exchange with the outside air.

[0002]

2. Description of the Related Art Various heat-insulating bags are used as tools for preventing changes in the temperature of stored articles. As a conventional heat insulating bag, a two-layer sheet of a plastic foam sheet and a plastic sheet (film), or a base material of a three-layer sheet structure to which an aluminum vapor-deposited plastic sheet is further added, or a quilted cloth Known as a heat insulating bag (Japanese Patent Laid-Open No. 10-25888).
2).

[0003]

The three-layer sheet structure is superior in heat insulating property to the former two-layer sheet structure heat-insulating bag. However, the heat insulation bag with a three-layer sheet structure. Since many plastic foam sheets are used for the middle layer, the heat insulating bag becomes thick (bulky), which hinders automation of production and requires many places for storage. In particular, there are problems that the outdoor activity person in the summer season has a short cold storage time and is bulky, which is inconvenient to carry.

The present invention has been made in view of the above problems, and its purpose is to make a heat insulating bag thick (bulky), which hinders automation of production and requires many places for storage. In particular, the present invention provides a heat-insulating bag that solves the problems such as the short cooling time for outdoor activities and the bulkyness that makes it inconvenient to carry during the summer season.

[0005]

The present invention comprises the inventions of the following items. (1) Using the thermoplastic synthetic resin non-woven fabric 1 as a base material, the handle pieces 6a and 6b on the opposite surfaces of the opening 8 and the other surface,
In the outer bag 7 of the main body in which the folding lid 9 of the opening 8 is extended, the object to be cooled 14 is placed inside the bag 12 of the outer bag 7 of the main body.
Is housed in a regenerator inner bag 10 composed of a multi-layer laminated with a thermoplastic synthetic resin film 3 on the inner surface and an aluminum vapor-deposited film 2 on the outer surface. A portable cool bag stored in the bag interior 12. (2) The portable cold-retaining bag according to claim 1, wherein the regenerator inner bag 10 is a bag having a structure in which partitions 13 are provided on the surface by heat fusion at a plurality of locations to form a flat shape. (3) The non-woven fabric fusible sheet 4a is provided on the inside of the folding lid 9 and on the front side of the bag body 7a so as to face each other, and the surface fastener 4 is provided.
A pair of male and female thermoplastic synthetic resin hook-and-loop fasteners 4 fixed to the back surface of the laminate by a laminating method by fusion bonding.
And the portable cold-storage bag according to claim 2.

Each component of the present invention will be described. The non-woven fabric 1 made of thermoplastic synthetic resin, which is the base material used for the outer bag 7 of the main body, is made of thermoplastic synthetic fiber, and is made of, for example, short fibers such as polypropylene, polyethylene, polyester, nylon and acrylic fiber. Those that can be suitably used.

The thickness of the non-woven fabric affects the tactile sensation as a portable cold bag, and the tactile sensation varies depending on the thickness. Usually 20 to 100 g / m ² , preferably 30 to 70
A range of g / m ² is good. Further, the mechanical strength or the tactile sensation can be adjusted by laminating the outermost surface with a reinforced thermoplastic synthetic resin film or embossing it.

The regenerator inner bag 10 comprises a thermoplastic synthetic resin film 3 on the inner surface and an aluminum vapor deposition film 2 on the outer surface.
It is a bag made of multiple layers laminated with and. For the thermoplastic synthetic resin film 3 on the inner surface, for example, polypropylene or polyethylene is used, and a 0.01 to 1% aqueous solution of AquaKeep (Sumitomo Seika) is used as a regenerator in the bag. A jelly-like body is quickly formed.

The hook-and-loop fastener of No. 4 is called a velcro tape under the trade name, and has a male surface or a female surface made of a monofilament flocked body having a high melting point such as nylon and polyester, and has a male and female surface. It is a combination of these that exerts a strong joining force. When the surface fastener is tape-shaped, it is 5 to 50 mm, preferably 10 to 2
A long tape having a width of 0 mm, which is cut into an appropriate length depending on the place of use and size.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings of one embodiment. FIG. 1 is a perspective view of the main body outer bag of the present invention. Reference numeral 7 denotes an outer bag of the main body, the base material of which is the nonwoven fabric 1 made of thermoplastic synthetic resin.

6a. Reference numeral 6b is a handle piece extending symmetrically from the opening 8 of the outer bag of the main body, and 6c and 6d are handle holes for making it easy to carry the main body of the bag. 9
In the above-described folded lid 9 of the opening 8, the hole 5 at the substantially central portion is an insertion hole in the neck portion when the cooled object 14 has a bottle-like shape (plastic bottle). Reference numeral 4 is a thermoplastic synthetic resin surface fastener which is fused and fixed via a non-woven fabric fusible sheet 4a.

On the inside of the folding lid 9 and on both front sides of the bag portion 7a, the surface fastener tapes 4 which are fused and fixed to the back surface of a pair of male and female surface fasteners 4 by a laminating method are fixed by fusion. . As the laminating method, for example, a wet or dry laminating method, a heat-sensitive laminating method, a laminating method using a pressure-sensitive adhesive, a reactive adhesive, or a hot-melt adhesive can be used without particular limitation. In this case, the adhesive sheet to the non-woven fabric does not have to have a two-layer structure as long as it has good adhesiveness to the surface fastener tape, and when strong fusion strength with the non-woven fabric is not required. As long as the material has a softening point lower than that of the non-woven fabric, there is an advantage that the material for the non-woven fabric fusible sheet can be freely selected.

In this case, it is desirable to heat the non-woven fabric and the non-woven fabric fusible sheet by heating from the non-woven fabric side, and high frequency fusion or ultrasonic fusion is preferable from the viewpoint of workability. In the case of a non-woven fabric, it is possible to perform normal heat sealing, but it is necessary to increase the area of the heat-sealed portion in order to increase the welding strength, and the workability is reduced.

Numeral 10 is a cold storage agent inner bag which is a main component of the present invention. The cold storage agent inner bag will be duplicated because it has already been described, but its structure is a multi-layered bag in which a thermoplastic synthetic resin film 3 on the inner surface and an aluminum vapor deposition film 3 on the outer surface are laminated. The example of the embodiment is the case of two layers. An aqueous solution of 0.01 to 1% of Aqua Keep (manufactured by Sumitomo Seika) is used as a regenerator, and the aqueous solution rapidly forms a jelly-like body. As an example of this embodiment, the opening of the bag containing the jelly-like body of the regenerator is heat-sealed and sealed into a bag-like (10a),
Furthermore, partitions 13 are provided on the surface of the cold storage agent bag 10a at a plurality of positions by heat fusion to make it flat, and the cold storage object 14
6 is formed into a bag shape for accommodating the cold storage agent to form the cold storage agent inner bag 10.

Reference numeral 11 in FIGS. 1 and 3 denotes a heat-sealing seal portion for forming the bag portion 7a, and a double gusset type may be used for forming the bag portion 7a. Further, 11 shown in FIGS. 5 and 6 is a heat-sealing seal portion. The seal can be formed by thermocompression bonding.

Next, a description will be given of an embodiment that exhibits the functions and effects of the present invention. For example, when carrying a cold PET bottle from home outdoors, after putting the PET bottle to be kept cold in the cold storage agent inner bag of the present invention and storing it in the refrigerator for 1 to 2 hours, it is stored in the main body outer bag of the present invention. And carry it. As a result, the cold insulation effect is exhibited for a longer time than that stored in another cold insulation container. In the embodiment, a PET bottle is used as the object to be kept cold, but a cold fruit or the like put in a plastic container can also be used.

If necessary, the outer bag of the present invention is shown in FIG.
Alternatively, a zipper may be provided on the outer side of the bag portion 7a as shown in FIG.

Since the present invention is constructed as described above, it has various effects as described below.

Since the cold storage time is long, it is most suitable for outdoor use especially in summer.

It is easy to carry without taking bulk.

Since it is not bulky, the productivity is high and the cost is reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a main body outer bag of the present invention.

FIG. 2 is a sectional view of the front surface (face fastener) of FIG.

FIG. 3 is a bottom view of FIG.

FIG. 4 is a plan view of a cold storage agent bag.

FIG. 5 is a side view (including a partial cross-sectional view) of the cold storage agent bag.

FIG. 6 is a cross-sectional view of a regenerator inner bag.

FIG. 7 is a cross-sectional view in which a cool storage agent inner bag in which a plastic bottle is housed is housed in an outer bag.

FIG. 8 is a perspective view of a main body outer bag having a zipper on the outside.

FIG. 9 is a development view of an outer bag of the main body.

[Explanation of symbols]

1. Non-woven 2. Aluminum vapor deposition film 3. Thermoplastic synthetic resin film 4. Hook-and-loop fastener 4a. Non-woven fabric fusion sheet 5. Bottle neck insertion hole 6a and 6b. Handle piece 6c and 6d. Handle hole 7. Body outer bag 7a. Bag 8. Aperture 9. Folding lid 10. Cold storage agent inner bag " 10a. Cool storage bag 11. Fusing or thermo-compression sealing part 12. Inside the bag 13. partition 14. Cooled object (PET bottle)

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 77/04 B65D 77/04 FF term (reference) 3E064 AD30 BA09 BA17 BA22 BC18 BC20 EA10 EA30 HJ01 HK10 HN24 HN62 3E067 BA12B BA12C BB06C BB14B BB14C BB15B BB15C BB16B BB16C CA18 EA06 EA23 EC14 EE12 EE25 EE28 FA04 FC01 GA02

Claims (3)

[Claims] 1. A thermoplastic synthetic resin non-woven fabric 1 as a base material,
In the outer bag 7 of the main body, in which the handle pieces 6a and 6b are provided on opposite sides of the opening 8, and the folding lid 9 of the opening 8 is extended on the other surface, the inside 12 of the outer bag 7 of the main body, The object to be kept cold 14 is housed in a regenerator inner bag 10 composed of a plurality of layers in which a film 3 made of a thermoplastic synthetic resin is laminated on the inner surface and an aluminum vapor deposition film 2 is laminated on the outer surface.
The above-mentioned portable cold insulation bag in which the above is stored in the inside 12 of the main body outer bag 7. 2. The portable cold-retaining bag according to claim 1, wherein the regenerator inner bag 10 is a bag having a structure in which partitions 13 are provided on the surface by heat fusion at a plurality of positions to form a flat shape. 3. A pair of male and female heat in which the non-woven fabric fusible sheet 4a is fixed to the back surface of the surface fastener 4 by a laminating method at a position where the inside of the folding lid 9 and the front side of the bag body 7a face each other. The portable cold-keeping bag according to claim 1 or 2, wherein a plastic synthetic resin surface fastener (4) is fused and fixed.