Self-adhesive and self-heating bag and preparation method thereof

Abstract

The invention provides a self-adhesive and self-heating bag and a preparation method thereof. The self-heating bag consists of contents and a bag body, wherein the bottom layer of the bag body is provided with an airproof plastic composite film layer and a layer of tearable adhesive sticker paper; the surface layer of the bag body is provided with a non-woven fabric composite film with certain air permeability; and the contents are iron powder, activated carbon, aluminum powder, calcium chloride, diatomite, zeolite and water. The temperature of the self-adhesive and self-heating bag can be quickly increased after the adhesive sticker paper is torn, and can be kept between 40 and 50 DEG C. The self-adhesive and self-heating bag has the advantages of over 12 hours heat dissipation time and no toxicity of safe raw materials to human bodies.

Description

technical field [0001] The invention belongs to the health care product which utilizes several chemical substances to produce heat through oxidation-reduction reaction, specifically a self-heating bag and a preparation method thereof. Background technique [0002] Working in a long-term outdoor cold environment such as standing guard, driving, building, etc., in order to prevent cold and keep warm, people mostly use more clothes, but this method seems clumsy and reduces the flexibility of operation. In recent years, portable heating products such as Diannuanbao and Rebao have been put on the market, but some products are relatively large in size or need to use a power supply, which is very inconvenient to use in the field. For some self-heating products, due to the poor control of the air permeability of the heating bag, the temperature of heat generation cannot be controlled. If the air permeability is too small, the heating effect cannot be achieved at low temperature; bu...

AI Technical Summary

Problems solved by technology

In recent years, there are portable heating products such as Diannuanbao and Rebao on the market, but some products are large in size or need to use a power supply, etc., which is very inconvenient to use in the wild

For some self-heating products, due to the poor control of the air permeability of the heating bag, the temperature of heat generation cannot be controlled. If the air permeability is too small, the heating effect cannot be achieved at low temperature; burn skin

The above-mentioned products are inconvenient to carry and use, or the heat generation temperature of similar products is unstable and the heating time is short.