JP3030498U - Thermal insulation paper case - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a heat-retaining paper case that is relatively inexpensive, solves problems such as waste disposal, transportation costs, and storage space due to folding, and has a heat-retaining effect that is comparable. [Structure] A low-density paper manufactured by Shin-Oji Paper Co., Ltd. is attached to at least one surface of a paper board constituting the heat insulation cold insulation paper material case to form a paper board for forming the heat insulation cold insulation paper material case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is. Involved in the thermal insulation paper case. For more details. The purpose of the paper is to provide a case for keeping warm and cool paper materials that can be used for transporting foodstuffs and processed foods that require keeping warm and cool.

[0002]

[Prior art]

 Up until now, there have been a variety of markets for transportation products for the purpose of keeping warm and cold. In order to achieve the function of keeping warm and cool, it has a multiple structure such as a foam sheet and aluminum foil. There were problems such as avoiding the disposal contractor at the stage of disposal after use, and when using a foam polystyrene case with good heat insulation efficiency, there was a problem of transportation cost and storage space because it could not be folded.

Originally, although this kind of product is accompanied by problems of environmental protection and recycling, it is categorized as unavoidable because there is no suitable paper material with high heat insulation, The reality is that many cases of styrofoam have been used despite problems with disposal, transportation costs, and storage space.

A thermal insulation paper case that is relatively inexpensive and has thermal insulation performance similar to that of the existing foam polystyrene case, solves problems such as disposal, transportation costs, and storage space due to folding, and is as good as the thermal insulation effect. Is desired.

[0005]

[Problems to be solved by the device]

 The present invention is. It was made in view of such problems. We would like to provide a thermal insulation paper case that is relatively inexpensive, has no problems in disposal, transportation costs, storage space, etc., and has a thermal insulation property similar to that of a polystyrene foam case. To do.

[0006]

[Means for Solving the Problems]

 The above problems are. It is solved by the following means.

A low-density paper manufactured by Shin-Oji Paper Co., Ltd. is attached to at least one surface of the paper board constituting the case to form the paper board, thereby forming a heat-retaining cold-storage paper material case.

[0008]

[Action]

 When using the heat-retaining paper case, in the case of cold-keeping, cool the heat-retaining material in advance and install it inside the box, and enclose it with food. At this time, depending on the nature of the food, care should be taken to block the inflow and outflow of air inside and outside as much as possible. Regarding the thermal conductivity (W / mK) of low-density paper, Shin-Oji Paper Co., Ltd., which was developed, compared it with other materials. 0.052 for low-density paper, 0.042 for foamed PE, and good quality. The paper is published as 0,161. From this figure, it can be fully inferred that when a heat insulation / cooling case is made of low-density paper, a heat insulating effect similar to that of a foam polystyrene case is exhibited.

[0009]

【Example】

 An embodiment of the present invention will be described below. Heat insulation and cold insulation paper case Molding paperboard (3) is formed by laminating low density paper (2) on one side of case molding coated paper (1), and heat insulation and cooling paper of 12 cm in length, 12 cm in width, and 8 cm in height. For the purpose of comparison, prepare a case that can be composed only of coated paper of the same standard. For each comparison, set a case containing 150 g of cold insulation material in each box and put it in the case. The temperature change was measured. The results are shown in Table 1.

[0010]

[Table 1]

[0011]

[Effect of device]

 The present invention is. As detailed above. It has a simple structure and can be commercialized with almost no change in the conventional manufacturing process. Moreover, it does not lose the advantages such as waste treatment, transportation cost, inventory space, etc. similar to the conventional coated paper case, and it also has a heat retention effect. Due to the heat insulating effect of the compressed paper, it has an excellent heat and cold insulation effect compared to the conventional coated paper case.

[Brief description of drawings]

FIG. 1 is a partially enlarged cross-sectional view of a molding board according to the present school plan.

FIG. 2 is a partial cross-sectional perspective view of a product used in the present invention.

[Explanation of symbols]

 1 Coated paper for molding 2 Low-density paper 3 Paperboard for molding 4 Thermal insulation cold paper material case 5 Hands part 6 Lid

Claims (1)

[Scope of utility model registration request] 1. In the constitution of a heat insulation cold insulation paper material case. At least one side of the paperboard that makes up the case manufacturing material. A heat and cold insulation paper case that can be constructed by molding a paperboard made by laminating low density paper.