Process for preparing fiber fleece using the airlaid process

摘要

Invention Patent: B "PROCESS FOR PREPARING FIBER CANDLES ACCORDING TO THE AIRLAID PROCESS" D. purpose of the invention is a process for preparing fiber fleece according to the Airlaid process, with the fibers and powder binder being disposed in an air flow, characterized by the fact that in a first process step a fleece is coated of fibers or fibers up to a surface weight of 10 to 50 g / m ^ 2 ^, in the next step fibers and a polymeric thermoplastic powder based on polymers of one or more monomers of the group of vinylester and acid ester (met) are separated acrylic or placed as a mixture in air flow in an amount of 10 to 300 g / m ^ 2 ^, and this step is optionally repeated as often until the desired surface weight is obtained and the fiber material is stiffened at temperatures of 80 ° C to 260 ° C and optionally at a pressure of up to 100 bar.