Method for the production of a composite sheet for artificial le

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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156250, 428236, 428238, 428330, 428904, 28107, 28112, B32B 506

Patent

active

051124211

ABSTRACT:
A soft and strong composite sheet for an artificial leather is provided by superimposing a fabric or woven or knitted construction and a non-woven fiber web, anchoring fibers of the non-woven fiber web with the fabric by needle punching to form a composite sheet and thereafter coating or impregnating the composite sheet with a binder solution. The fabric is constructed at least partly from high twist multifilament yarn and the non-woven fiber web is constructed from fibers having an average fiber length of at least 20 mm, the number of fibers being at least 10 fibers/cm.sup.2.

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