Process for producing artificial leather similar to real leather

Details Process for producing artificial leather similar to real leather Process for producing artificial leather similar to real leather

1986-12-11

1988-08-23

Clingman, A. Lionel

Coating processes

Foraminous product produced

Microporous coating

427400, 428904, B05D 500

Patent

active

047660147

ABSTRACT:
Synthetic sheet material comprising a porous polyurethane resin matrix containing polyester or polyethylene fibers, and a pressed polyurethane resin cover film patterned to imitate natural leather is treated inside rotary tanning drums, with a bivalent or trivalent metal salt solution, preferably of a chloride or sulphate, which is brought up to precipitation pH level in such a manner as to fill the pores in the polyurethane matrix on the sheet material with a corresponding hydroxide, after which the material is treated with a dialdehyde; fireproofing, coloring and softening substances.

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