Method for the production of an elastic composite material with a textile surface
View Patent ↗A method for the production of an elastic composite material with a textile surface. First, a laminate is produced, which has elastic cover layers and a core composed of a nonwoven fabric. Subsequently, the laminate is separated into two strips, each of which has a cover layer and an adhering layer of nonwoven fabric, by tearing open the core.
1. A method for the production of an elastic composite material with a textile surface, comprising:
producing a laminate that has elastic cover layers and a core composed of a nonwoven fabric, and
subsequently separating the laminate into two strips, each strip having a cover layer and an adhering layer of nonwoven fabric, by tearing open the core;
wherein the core comprises a multi-layer nonwoven fabric with an SMS layer structure, which fabric has outer layers composed of a spun-bonded nonwoven fabric (S) and a center nonwoven layer composed of melt-blown fibers (M).
2. The method according to claim 1 , wherein the step of separating comprises grasping the strips separately and pulling them apart by applying tensile forces.
3. The method according to claim 1 , wherein the strips are passed over driven rollers and wound up separately.
4. The method according to claim 1 , wherein the step of tearing open the core is supported by a blade disposed in a parting plane.
5. The method according to claim 1 , wherein the core is formed of a nonwoven fabric web, which is laminated in between the elastic cover layers which are formed of elastic film webs.
6. The method according to claim 5 , wherein the nonwoven fabric web and the elastic film webs are glued together.