An intelligent thermal pad with overheating protection function

Abstract

The invention relates to the field of daily necessities, and discloses an intelligent thermal paste with overheating protection function, comprising a porous hydrogel-type heat source, a non-woven bag wrapping the porous hydrogel-type heat source, and a non-woven The adhesive layer on one side of the bag and the airtight packaging bag wrapping the non-woven bag; the composition of the porous hydrogel type heating source is as follows: iron powder 40-50wt%, porous water-absorbing resin 10-15wt%, vermiculite 3 -5wt%, activated carbon 3-5wt%, sodium chloride 1-5wt%, water 30-40wt%; the inner surface of the non-woven bag is sequentially provided with a waterproof breathable membrane and modified N-isopropylacrylamide Polymer coating. The thermal patch of the present invention has the function of overheating protection, and when the temperature is too high, the calorific value is automatically reduced, so that the skin can be prevented from being scalded, and the safety is high. In addition, the thermal patch of the present invention can continuously and stably generate heat, and the temperature in the middle and late stages is relatively constant.

Description

technical field [0001] The invention relates to the field of daily necessities, in particular to an intelligent thermal sticker with overheat protection function. Background technique [0002] In recent years, especially in winter, baby warmers have become one of the necessary daily necessities for young people. At present, the reaction principle of most warm babies on the market is to use primary batteries to speed up the oxidation reaction and convert chemical energy into heat energy. [0003] Existing most warm baby mainly is made up of exothermic raw material layer, gelatin layer, nonwoven bag with microporous air-permeable film and airtight outer bag. When in use, the outer bag is removed, and the inner bag (non-woven bag) is exposed to the air, and the oxygen in the air enters the exothermic material layer through the breathable film to perform exothermic reaction. The principle of the reaction is to use the primary battery to speed up the oxidation reaction and conv...

AI Technical Summary

Problems solved by technology

However, in the actual test, it is found that most of the warm baby products currently on the market do not match their labels, and their maximum temperature is much higher than the label temperature

This will bring certain safety hazards, such as continuous high temperature may cause burns to the skin

[0009] In addition, the common problem of existing warm baby products is that the temperature is higher in the middle stage of fever, but in the later stage, due to the gradual failure of the reaction, the temperature cannot be maintained for a long time