Coating of Roll Stocks

This technique may be used for textile webs, non-woven web, paper or foils. The non-woven webs or foams may be impregnated by binders, such as acrylic dispersion binders, but the coating weight must be controlled by squeezing out the excess adhesive or binder. 

Adhesives and binders used for non-wovens The binders should have low viscosity, from 200 to 3,000 mPas. In order to bind the fibers together with a minimum amount of adhesive, so that the non-woven will be soft and flexible, the surface tension of the binder must be controlled so that the droplets of binders will gather at the intersections (refer to Fig. 74). 

---