Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1990-12-04
1993-12-14
McAvoy, Ellen M.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 9414R, 8 942, C14C 306, C14C 328
Patent
active
052698149
ABSTRACT:
Between a chrome tanning step and a fat liquor treatment step, a flesh side split leather is subjected to shaving on both its split and flesh sides to a thickness of 1.1 to 2.5 mm, preferably 1.2 to 1.5 mm and is then aftertanned. After a split side dressing of the dried butt, a further shaving operation is effected on the flesh side to a thickness of 0.5 to 1.0 mm, preferably 0.7 to 0.9 mm, whereupon the flesh side is also dressed. The result is a split leather which is particularly effective for use on automotive vehicle dashboards and has low shrinkage even when subjected to high temperature and moisture fluctuations.
REFERENCES:
patent: 3254938 (1966-06-01), Rodriguez et al.
patent: 3475113 (1969-10-01), Sellet
patent: 4060384 (1977-11-01), Siegler
Meurer Peter
Schmidt Gunter
Dubno Herbert
Ludw. Lindgens GmbH & Co. KG
McAvoy Ellen M.
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