Nonwoven material for use as filter fabric, etc. - has two layers consisting of spun-bounded or nonwoven material on which carded staple mat is placed

摘要

A nonwoven material with two layers consists of a spunbonded or a nonwoven material on which a carded staple fibre mat is placed. The mat is joined to the spunbonded or nonwoven material by needling. The nonwoven material is made wholly or partially of continuous bicomponent filaments. The spunbonded material can consist of polyamide, polyester, polyethylene or poplypropylene. Akzo-Enka's Colback with a polyester core and a polyamide covering is a partic. suitable for the nonwoven material. ADVANTAGE - The material can be used in a wide variety of applications, including as filter fabric.