Adhesive plaster has two kinds of preparation methods

such as solvent method and hot-pressing method.Products produced with solvent method have good viscosity and less skin residue.However

there are some potential dangers and the process will result in environmental pollution owing to using solvent.On the other hand

the adhesive plaster produced with hot-pressing method

because of no solvent

is secure and environmental with less land occupation

low cost and so on.In a word

adhesive plaster produced with hot-pressing method can be instead of solvent method.The coating technologies of adhesive plaster have direct coating and back-coating

direct coating has high demand for cloth

and surface of plaster will easily lead to some problems

like adhesion in the process of production;but back-coating is easy to operate

and the products have stable pas te content with high production efficiency.The key to achieving producing adhesive plaster with hot-pressing method and back-coating is to reduce the softening temperature of rubber matrix and keep the heat-resistant quality.Adjustment the dose of softener

tackifier and others in rubber matrix can make the products with hot-pressing method to be similar to those with solvent method in glossiness

initial adhesion

persistent adhesion and so on.