A self-heating thermal insulation film and its application

Abstract

The invention discloses a self-heating thermal insulation film, which comprises at least three-layer structure. From the outside to the inside, there are respectively an outer layer made of a breathable material, a heat-generating composition loaded with a heat-generating composition through contact with air, and at least in contact with the outer layer. The contacted upper cover is a heating layer made of breathable material and a heat insulating layer made of material with waterproof and heat preservation performance. The self-heating thermal insulation film of the present invention has a simple structure, is not limited by environmental resources, does not need external energy to provide energy, and can generate heat safely, stably and evenly, and can effectively prolong the heating time and reduce the peak temperature of heating. Especially when the self-heating thermal insulation film is applied to facial skin as a facial mask, it can improve blood circulation, enlarge skin pores, and discharge sweat and dirt and oil. When used together with traditional nutritional masks and skin care products, it can improve the skin's absorption of active ingredients in traditional masks and skin care products, while reducing the amount of skin care products, it can also increase the skin care effect. It is safe and hygienic to use, and the cost is low.

Description

technical field [0001] The invention relates to a self-heating and heat-retaining multilayer film, in particular to a self-heating and heat-retaining multilayer mask applied to the face. Background technique [0002] In the prior art, self-heating patches made by oxidative heating technology, such as warm baby, have been widely used in the medical market for daily warmth and treatment of cold-damp arthralgia. These patches are generally composed of a bag body, a heating material, an adhesive layer, and a peelable covering layer pasted on the outer surface of the adhesive layer. When in use, peel off the covering layer, stick the adhesive layer on the clothes, and face the skin. The most important thing is the air-permeable layer of the bag body. The heat-generating material reacts chemically with the moisture and oxygen in the air to generate heat, so as to keep warm. However, all current self-heating patches have the following defects: 1) The initial temperature is too hig...

AI Technical Summary

Problems solved by technology

However, all current self-heating patches have the following defects: 1) The initial temperature is too high or the heat is lost too quickly, which can easily cause low-temperature burns, and tissue damage occurs at the application site due to heat, or the temperature of the site that needs to be kept warm is kept low , disordered heat production; 2) uneven heat generation, local temperature is too high

Although the patent discloses that the mask can be self-heating, the mask still does not overcome the above-mentioned uneven heating, difficult to control the peak heating, high local temperature, easy cross-contamination, skin infection and other defects

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