Portable type chemical ice bag formula and manufacture and use methods thereof

Abstract

The invention relates to a portable type chemical ice bag formula and manufacture and use methods thereof, belonging to the field of application researches of chemical endothermic reaction principles in cooling, storing and freshness retaining technologies. The ice bag is formed by loading small plastic bags respectively containing different raw chemical materials in a large plastic bag, wherein both the large plastic bag and the small plastic bags are plastic bags capable of being sealed by pressing by hands; and the formula of the two raw chemical materials respectively comprises 250g of sodium carbonate and 190g of ammonium nitrate. The use method comprises the following steps of: opening the large plastic bag; pouring raw materials in the two small plastic bags into the large plastic bag; and dropping temperature to be below 0 DEG C and keeping the temperature for more than 10 hours to achieve the purpose of the invention. The invention has convenient use, low cost and good freshness retaining effect and is beneficial to the human body health.

Description

1. Technical field [0001] The invention discloses a composition of a portable chemical ice pack and its manufacturing and application methods, which belong to the principle of chemical endothermic reaction and are in the field of applied research of cooling and storage technologies. 2. Technical background [0002] The food carried by people in the process of outdoor activities often needs to be kept fresh and stored to prevent deterioration. Semiconductor refrigerators are usually used, which is inconvenient to carry and high in cost. Therefore, there is a demand for cheap and convenient refrigeration and fresh-keeping technology. 3. Contents of the invention [0003] 1. Purpose of the invention [0004] It is to invent an easy-to-use and low-cost food refrigeration and fresh-keeping technology under the conditions of field activities. [0005] 2. The problem to be solved by the invention [0006] It is necessary to keep the food at around 0°C within a few hours to ensu...

AI Technical Summary

Problems solved by technology

[0002] The food carried by people in the process of outdoor activities often needs to be kept fresh and stored to prevent deterioration. Semiconductor refrigerators are usually used, which is inconvenient to carry and high in cost. Therefore, there is a demand for cheap and convenient refrigeration and fresh-keeping technology.