Process of making synthetic suede

Details Process of making synthetic suede Process of making synthetic suede

1977-08-22

1978-11-07

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156245, 156246, 156247, 156322, 428 91, 428 95, 428315, 428425, 428904, B32B 3300, D06C 1100

Patent

active

041244281

ABSTRACT:
Process for making a synthetic suede product, two rolls at a time, each roll consisting of a web of fibrous material, to the upper side of which is attached outwardly extending polyurethane fibers. The process consists of continuously feeding two thin films of polyurethane into the nips formed by two rotating heated cylinders wherein the two feed materials are forced into two flexible molding bands provided with a multiplicity of molding cavities by pressing the film against a heated silicone roller. Most of the urethane film fills the cavities and forms a fibrous surface when removed, leaving a very thin layer in molten state which becomes glued to the upper layers of fibrous webs which are passed into a second set of nips formed by two rotating heated cylinders. The fibrous material or fabric may be man-made such preformed woven, knitted, foamed, non-woven, spun bonded, spun laced, etc.

REFERENCES:
patent: 3098262 (1963-07-01), Wistozky
patent: 3582430 (1971-06-01), Benigno
patent: 3709752 (1973-01-01), Wistozky et al.

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