The invention relates to a process for the production of a composite material, by bonding a supportive layer to an upper layer (1) made of polyurethane or flexible PVC, where the supportive layer (2) is a textile material, e.g. woven fabric, knitted fabric or nonwoven microfiber fabric, or a leather, in particular a split cowhide leather, and the upper layer (1) comprises, bonded to one another, a number of polyurethane layers or a number of flexible PVC layers (1′, 1″). The invention provides thatin the composite of upper layer (1) and supportive layer (2), proceeding from the surface of the upper layer (1), channel-shaped cavities (6) for the passage of water vapor and/or air are formed via ablation of material by a laser in a manner such thatat least some of the cavities (6) penetrate the entire thickness of the material of the upper layer (1) and/or terminate before entry into that region of the volume of the supportive layer (2) that is free from the material of the upper layer (1).
Method for producing a composite material and composite material
21.05.2024
Patent
Elektronische Ressource
Englisch
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse |
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