Novel ice bag without falling

Abstract

The invention relates to an ice bag, especially relates to a method for preventing falling of the ice bag. The novel ice bag has the purpose of solving the falling condition generated by placing the ice bags in the prior art for long time. The novel ice bag comprises the following ingredients: polyvinyl alcohol, carbomer or polyacrylic acid, water and an alkaline substance; polyvinyl alcohol is a water-solubility macromeclecule polmer which has wide purpose, the performance of the polyvinyl alcohol is between the performance of plastic and the performance of rubber, thereby the polyvinyl alcohol has characteristics of unique strong cementability, membrane flexibility, smoothness, oil resistance, colloid protection performance, gas block performance, wear resistance and water resistance after being taken a special treatment. The above two compounds are introduced in the fields of refrigeration and cold storage, the novel ice bag without falling can be prepared by crosslinking, so that the novel ice bag without falling has the advantages of no falling and deformation. By using a reasonable formula, and the alkaline substance in a previous technology is added, the novel ice bag has the characteristics of rapid cold absorption and slow cold release, and has an optimum characteristic that after being placed with energy, the novel ice bag is difficult to be deformed.

Description

technical field [0001] The invention relates to an ice pack, in particular to a novel ice pack which prevents falling and caking. [0002] The invention also relates to a method for making an ice pack, in particular to a method for preventing falling. Background technique [0003] Various ice packs currently on the market are used to keep fruits and vegetables fresh, transport goods, keep medicine and cosmetics cold, etc., and have good effects. However, due to its shortcomings such as easy deformation when frozen and easy flow after thawing, it is not practical in special occasions. When storing and transporting items in an incubator, place ice packs on the six sides of the incubator to achieve a good cold preservation effect. However, when the traditional ice pack is placed, the four sides of the front, rear, left, and right sides are caused by the falling of the ice pack, resulting in insufficient cooling agent in the upper part, so that the cold preservation effect is ...

AI Technical Summary

Problems solved by technology

However, when the traditional ice pack is placed, the four sides of the front, rear, left, and right are due to the falling of the ice pack, resulting in insufficient cooling agent in the upper part, resulting in poor cold preservation effect.

During the transportation of medicines and other items, a specific incubator and ice packs are usually used for refrigerated transport. Because the traditional ice packs are easily deformed after freezing, the placement of the ice packs remains unchanged or there is insufficient space.

A reusable ice pack is disclosed in Chinese patent CN200910305794.1. In this document, a lot of importance about the reusable use of ice packs is introduced. Today, this reusable use can no longer meet people's needs. , not only repeated use, but also good cold preservation effect and long time, etc. From the analysis of the above-mentioned patent documents, we know that the general cold preservation ice bag is filled with some things such as fine sand, and these fine sand things are packed Into the soft bag, so that when they are fixed for a long time to maintain a constant shape, due to the gravity of the earth, the material in the bag will slide down, forming a phenomenon of thick middle and thin periphery for a long time. As a result, as we said above, the contact with the fresh-keeping object is not good, which leads to the decline of the fresh-keeping effect. So can we find a way to prevent the swimming of the refrigerant in the bag and overcome this drop? What about the phenomenon?

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