Process for solvent-drying leather

Details Process for solvent-drying leather Process for solvent-drying leather

1978-01-30

1979-04-03

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Treatment of untanned skins or hides

8 941D, 34 9, C14C 100, F26B 300

Patent

active

041475119

ABSTRACT:
A process for drying water-wet animal hides comprising contacting the water-wet hides with a single phase drying medium comprising a chlorine-containing carrier liquid plus methanol and removing the hides from contact with the drying medium when the requisite amount of water has been removed from the hides. The useful carrier liquids are 1,1,2-trichlorotrifluoroethane, trichlorofluoromethane, tetrachloroethylene and 1,1,1-trichloroethane.

REFERENCES:
patent: 2781241 (1967-02-01), Ushakoff
patent: 3048929 (1962-08-01), Kremen et al.
patent: 3444625 (1969-05-01), Giella et al.
patent: 3559297 (1971-02-01), Figiel
patent: 4039281 (1977-08-01), Graf

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