JP2013119392A - Cold insulation tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold insulation tool in which an article having various shapes is enveloped desirably so that the whole of the article can be cooled uniformly.SOLUTION: Two flexible synthetic resin sheets 1a, 1b are brought into close contact with each other. Many long chambers are arranged in parallel in one direction between the two synthetic resin sheets. The long chamber is formed in such a manner that the periphery of the long chamber is sealed to form sealed parts 7 for forming a long chamber. An injection opening for injecting a cold insulation material 9 into the long chamber is arranged in the sealed part for forming the long chamber. The cold insulation material of the amount enough to be packed in one small chamber is injected into the deepest part of the long chamber from the injection opening and then sealed parts 13 for a small chamber partition in a direction traversing the respective long chambers are formed so that the small chambers 15 each packed with the cold insulation material are formed in the deepest part of the long chambers. Then, the small chambers each packed with the cold insulation material are formed successively in the long chamber in the same manner. Then, the injection opening is hermetically sealed.

Description

  The present invention relates to a cold insulator, and more particularly, to a flexible sheet-like cold insulator that can uniformly cool an entire article by preferably wrapping articles having various shapes. It is concerned.

  As a cold insulator, a shallow box-shaped body formed of a synthetic resin such as polyethylene and filled with a cold insulator (hereinafter referred to as “conventional cold insulator”) has been generally used.

  On the other hand, as shown in, for example, Japanese Patent Application Laid-Open No. 2011-25959, two flexible synthetic resin sheets are brought into close contact with each other, and a large number of air chambers (small chambers) are formed between the synthetic resin sheets. Sheet cushioning materials are widely known. The sheet-like cushioning material is also called “Puchipuchi” (registered trademark).

JP2011-25959A

  The conventional cold insulator described above is formed by filling a shallow box-shaped body formed of a synthetic resin with a cold insulator, and is not flexible. Therefore, although the conventional cold insulator can cool the one surface of the article by contacting the one surface of the article, the whole article cannot be cooled uniformly by wrapping the article. is there.

  The present invention is intended to provide a cold insulator that solves the above-described problems in the conventional cold insulator and that can uniformly cool the entire article by preferably wrapping the article having various shapes. It was made.

  In order to solve the above-mentioned problems, the present inventor has conceived a cold insulator such that a small chamber in the conventional sheet-like cushioning material is filled with a cold-retaining agent.

  That is, the present invention provides the following cold insulator.

(1) Two synthetic resin sheets having flexibility are brought into close contact with each other, and a plurality of long chambers are arranged in one direction between the two synthetic resin sheets. A long chamber forming seal portion is formed by sealing the periphery, and the long chamber forming seal portion is provided with an injection opening for injecting a cooling agent into the long chamber. After injecting an amount of a cryogen suitable for filling into one small chamber from the injection opening to the innermost part of the long chamber, a small chamber compartment seal is formed in a direction crossing each long chamber. A small chamber filled with the cryogen is formed in the innermost part of each long chamber, and thereafter, the small chambers filled with the cryogen are sequentially formed in the same manner, and then the injection opening is sealed. (Claim 1).

(2) Each of the chambers has a substantially circular shape in plan view.

(3) A cold insulator characterized in that a number of small chambers are formed in a flexible synthetic resin sheet, and each of the small chambers is filled with a cold insulating agent.

  Since the cold insulator according to the present invention is formed by forming a large number of small chambers in a flexible synthetic resin sheet and filling each small chamber with a cold insulating agent, it preferably encloses articles having various shapes. Thus, an excellent effect that the entire article can be uniformly cooled is exhibited. In addition, the cold insulator according to the present invention can be provided at low cost.

FIG. 1 is a perspective view showing an example of a cold insulator according to the present invention. FIG. 2: is a top view which shows the manufacturing process of a cold insulator same as the above. FIG. 3: is another top view which shows the manufacturing process of a cold insulator same as the above. FIG. 4 is still another plan view showing the manufacturing process of the above cold insulator. FIG. 5: is another top view which shows the manufacturing process of a cold insulator same as the above. FIG. 6: is another top view which shows the manufacturing process of a cold insulator same as the above. FIG. 7 is a cross-sectional view showing an example of the same cold insulator. FIG. 8 is a cross-sectional view showing another example of the cold insulator as described above. FIG. 9 is a cross-sectional view showing a state in which the cold insulation device is wrapped around a beer storage bottle.

  The cold insulator according to the present invention is formed by forming a large number of small chambers in a flexible synthetic resin sheet 1 and filling each small chamber with a cold insulating agent.

  As an example, as shown in FIGS. 2 to 8, the cold insulator is manufactured as follows.

(1) Two flexible synthetic resin sheets 1a and 1b are brought into close contact with each other, and a large number of long chambers (long chambers) 5 are arranged in one direction between the two synthetic resin sheets 1a and 1b. Set up. That is, the long chamber 5 forms a long chamber forming seal portion 7 by sealing the periphery of the long chamber 5. The long chamber forming seal portion 7 is provided with an injection opening 11 for injecting the cold insulating agent 9 into the long chamber 5. See FIG.

The synthetic resin sheets 1a and 1b are formed of, for example, polyethylene or polypropylene. The thickness of each synthetic resin sheet 1a, 1b is, for example, 10 to 200 μm.

As the cold insulating agent (cold storage agent) 9, for example, an hydrated gel of an elastic polymer of acrylamide or methacrylamide and a crosslinkable monomer thereof (N, N-methylenebisacrylamide or N, N-methylenebismethacrylamide) is used. .

(2) Each long chamber 5 is injected with an amount of the cold-retaining agent 9 suitable for filling one small chamber from the injection opening 11 to the innermost portion in the long chamber 5. See FIG.

(3) By forming the small chamber partitioning seal portion 13 in the direction crossing each long chamber 5, the small chamber 15 filled with the cooling agent 9 is formed in the innermost portion of each long chamber 5. See FIG.

(4) Thereafter, the small chambers 15 filled with the cooling agent 9 are sequentially formed in each long chamber 5 in the same manner. See FIG. 5 and FIG.

(5) Further, the injection opening 11 is sealed. That is, the injection opening 11 is sealed to form an opening hermetically sealed portion 7a. See FIG. A cold insulator is manufactured by the above (1)-(5). The opening hermetically sealing portion 7 a also plays a role of forming the small chamber 15 like the small chamber partitioning seal portion 13.

  Each chamber 15 preferably has a substantially circular shape in plan view. See FIG. For example, the diameter of each small chamber 15 is 3 to 10 mm, the height is 2 to 7 mm, and the center interval between the small chambers 15 is 5 to 15 mm.

  In the case shown in FIG. 8, two synthetic resin sheets 1a ′ and 1b ′ having flexibility are brought into close contact with each other, and a large number of small chambers 15 ′ are formed between the synthetic resin sheets 1a ′ and 1b ′. Each small chamber 15 'is filled with a cooling agent 9'.

  That is, in the case shown in FIG. 8, for example, a large number of convex portions 17 are formed on one surface of the synthetic resin sheet 1a ′ by vacuum molding or the like (upper surface in FIG. 8). ), And the other synthetic resin sheet 1b ′ such as polyethylene or polypropylene is fused to the other surface (the lower surface in FIG. 8) of the synthetic fat sheet 1a ′. Each convex part 17 in 1a 'and each flat synthetic resin sheet 1b' form each small chamber 15 '.

  The thickness of each synthetic resin sheet 1a ′, 1b ′ is, for example, 10 to 200 μm. Each small chamber 15 'is preferably substantially circular in plan view. For example, the diameter of each small chamber 15 ′ is 3 to 10 mm, the height is 2 to 7 mm, and the center interval between the small chambers 15 ′ is 5 to 15 mm.

The cold insulation agent (cold storage agent) 9 ′ filled in each small chamber 15 ′ is the same as the cold insulation agent 9.

Since the cold insulator according to the present invention has flexibility, it can be used, for example, formed in a bag shape or wound in a cylindrical shape. In the example shown in FIG. 9, a cold insulation tool is wound around the peripheral surface of the beer storage bottle 19.

DESCRIPTION OF SYMBOLS 1 Synthetic resin sheet 1a Synthetic resin sheet 1a 'Synthetic resin sheet 1b Synthetic resin sheet 1b' Synthetic resin sheet 5 Long chamber 7 Long chamber formation seal part 7a Opening part sealing seal part 9 Coolant 9 'Cold insulator 11 Injection opening part 13 Small chamber compartment seal 15 Small chamber 15 'Small chamber 17 Convex 19 Beer storage bottle

Claims (3)

  Two flexible synthetic resin sheets are brought into close contact with each other, and a number of long chambers are arranged in one direction between the two synthetic resin sheets. The long chambers seal the periphery of the long chambers. Thus, a long chamber forming seal portion is formed, and the long chamber forming seal portion is provided with an injection opening for injecting a cryogen into the long chamber. Each of the long chambers is formed by injecting a cooling agent in an amount suitable for filling into the small chambers from the injection opening to the innermost part of the long chambers, and then forming a seal section for the small chamber compartment in a direction crossing the long chambers. Forming a chamber filled with the cryogen in the innermost part of the chamber, and subsequently forming the chambers filled with the cryogen in each long chamber in the same manner, and then sealing the injection opening. Cooler to do. The cold insulator according to claim 1, wherein each of the small chambers has a substantially circular shape in a plan view. A cold insulator characterized in that a large number of small chambers are formed in a flexible synthetic resin sheet and each of the small chambers is filled with a cold insulating agent.

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