Warmer composition
Warmer is flake patch, which is composed of raw material layer, gelatin layer and non-woven bag. The raw material layer is placed in the non-woven bag, and the gelatin layer is used to make the warmer adhere to the clothes. The raw material layer is composed of iron, stone, activated carbon, inorganic salt, water and other synthetic polymers, which can produce exothermic reaction under the action of oxygen in the air. Non-woven bag is characterized by uniform leakage, good air permeability. The gelatin layer is made of high quality pressure-sensitive adhesive coating, which is made from Japan.