JPH0610177U - Cold storage container - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] A cool container in which a sheet having a heat insulating property, for example, an inner bag formed with an air cap (R) is housed in a cardboard box or the like. [Structure] This cold storage container is used for transporting fresh food such as fish and vegetables and living organisms such as fresh flowers. Then, the mouth portion 3 of the inner bag is bent and fixed with gum tape or the like.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cold container for use in transporting fresh food products and fresh flowers.

[0002]

[Prior art]

 Traditionally, fresh food products such as fruits and vegetables, meats and seafood were shipped in styrofoam boxes together with a cooling agent such as dry ice. Also, aluminum foil or aluminum vapor-deposited film laminated inside a cardboard box has been used for transporting fresh food products.

[0003]

【Problems to be solved】

 The Styrofoam box is lightweight and has excellent cold insulation and airtightness, but it has the problem that it is difficult to incinerate it after use. In addition, since it is bulky, there is a problem that it takes up space during storage.

A cardboard box having an aluminum foil or an aluminum vapor deposition film laminated inside can be folded when not in use, so it does not take up much space during storage. However, when trying to recycle this corrugated box after use, it was difficult to recycle it because the aluminum foil and aluminum vapor deposition film had to be separated.

An object of the present invention is to provide a cold storage container that is lightweight, has excellent cold storage properties and airtightness, and can be recycled extremely easily.

[0006]

[Constitution of device]

 The cold storage container of the present invention comprises an inner bag 1 for storing fresh food and an outer box 2 for storing the inner bag 1. The inner bag 1 is a bag having heat insulating properties, cushioning properties, and water resistance, and the outer box 2 is a box having mechanical strength such as a cardboard box.

[0007]

[Function of the device]

 When a fresh food product is transported using the cold storage container of the present invention, the fresh food product to be transported is stored inside the inner bag 1 together with a cooling agent such as ice or dry ice and various cold storage agents. And seal the mouth 3. This protects the fresh food products from mechanical shocks from the outside world and heat and outside air.

The outer box 2 has a function of giving mechanical strength to the cold insulation container and protecting the inner bag 1 from being broken when an impact is applied from the outside. Since the cold storage container of the present invention has the outer box 2, it can be stacked flat.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows an example of a cold insulation container 10 in which a closed-cell cushioning sheet 4 made into a bag is used as an inner bag 1 and a corrugated box is used as an outer box. In the figure, 1 is an inner bag, 2 is an outer box, and 3 is a mouth of the inner bag 1.

The inner bag 1 is made of a closed-cell type cushioning sheet 4. The bag-making method is not particularly limited, but the square bottom bag-making is particularly preferable. This is because the inner bag 1 having a square bottom bag can be easily stored in the outer box 2 and the operation of expanding the inner bag 1 is not required when fresh food is put therein. A fastener may be provided on the mouth 3 of the inner bag 1 for sealing, and an adhesive may be applied in a width of about 5 mm to 2 cm.

The closed-cell type cushioning sheet 4 is as shown in FIG. 2, and has a normal flat surface on the flat side of a film (hereinafter, referred to as “cap film”) 6 having a hollow projection 5 formed on the entire surface. A sheet in which a strip-shaped film (hereinafter referred to as “base film”) 7 is attached (FIG. 2 (A)). To bond the cap film 6 and the base film 7, heat fusion or adhesion is used. In this closed-cell cushioning sheet 4, an air chamber, that is, a closed bubble 5'is formed between the protrusion 5 and the base film 7. The closed-cell 5'blocks heat and impacts from the outside. Relieve

Examples of the closed-cell cushioning sheet 4 include those obtained by sticking a third flat film on the top surface of the projection 5 of the above-mentioned cushioning sheet (FIG. 2 (B)), or the above-mentioned closed-cell cushioning sheet. It is also preferable that two or more sheets 4 are laminated and bonded (FIG. 2C). Further, the one in which the cap films are attached to each other on the flat surface side (FIG. 2 (D)) is also used.

It is preferable that at least one surface of these closed-cell type buffer sheets reflects light. In order to reflect light, for example, metal such as aluminum can be vapor-deposited, or aluminum foil or aluminum vapor-deposited film can be attached. However, when the aluminum vapor deposition film is attached, it is preferable to attach the aluminum vapor-deposited side to the closed cell type buffer sheet.

As the inner bag 1, in addition to the above-mentioned ones, a foamed sheet such as a foamed polyolefin sheet, or a material obtained by vapor-depositing aluminum on at least one surface of these foamed sheets, or by laminating an aluminum foil or an aluminum vapor-deposited film. A bag made of is also used. Next, the outer box 2 will be described. As the corrugated cardboard that can be used as the outer box 2, not only ordinary corrugated cardboard, but also corrugated cardboard-shaped polypropylene sheet is preferably used.

As the outer box 2, a cardboard box or a container with a lid made of metal or synthetic resin is preferably used in addition to cardboard. In particular, when the cold insulation container 10 is used repeatedly, it is preferable to use a container with a lid.

Hereinafter, a method of using the cold insulation container 10 of the present invention will be described.

First, a fresh food product and a cooling agent are put in the inner bag 1 (FIG. 3 (A)). In addition to ice and dry ice, various types of cold storage agents and those that utilize endothermic reactions are used as cold storage agents. Next, the mouth portion of the inner bag 3 is closed, bent, and fixed with gum tape or the like (FIG. 3 (B)). Finally, the lid of the box 2 is closed, and if necessary, fixed with gum tape or the like (FIG. 3 (C)).

[0019]

[Effect of device]

 The cold storage container of the present invention comprises an inner bag 1 and an outer box 2, and both the inner bag 1 and the outer box 2 can be folded flat. Therefore, it does not take up much space for storage. Further, since the inner bag 1 has a heat insulating property, it becomes easier to transport the fresh food over a long distance as compared with the case where a normal cardboard box is used. Further, since the mouth 3 of the inner bag 1 is sealed at the time of use, the fresh food inside is not exposed to the outside air and does not hurt, and the juice exuded from the fresh food does not leak out. As the outer box 2, a corrugated cardboard box on which aluminum foil or the like is not vapor-deposited or an aluminum vapor-deposited film is not laminated can be used, and in this case, the recycling of the outer box 2 becomes extremely easy.

[Brief description of drawings]

FIG. 1 is an overall view showing an example of a cold insulating container 10 in which a closed-cell type cushioning sheet 4 is used as an inner bag 1 and a cardboard box is used as an outer box.

FIG. 2 is a cross-sectional view showing the structure of a closed-cell cushioning sheet 4.

FIG. 3 is a process diagram showing a method of using the cold insulation container 10 of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inner bag 2 ... Outer box 3 ... Port of inner bag 1 4 ... Closed-cell type buffer sheet 5 ... Protrusion 6 ... Cap film 7 ... Base film 10 ...・ Cold container

Claims (2)

[Scope of utility model registration request] 1. A cold insulation container comprising an inner bag 1 having a heat insulating property and an outer box 2 accommodating the inner bag 1. 2. The cold-insulating container according to claim 2, wherein the inner bag 1 is formed by adhering an aluminum foil or an aluminum vapor deposition film on one side or both sides of a heat insulating sheet.