Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Treatment of untanned skins or hides
Patent
1977-11-17
1979-10-02
Caroff, Marc L.
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Treatment of untanned skins or hides
81391, 8142, D06M 1900, D06B 906
Patent
active
041697065
ABSTRACT:
A method is disclosed for cleaning poultry feathers without the feathers becoming substantially twisted or clotted in lumps and with the feathers retaining its high bulk and tufted state. The method includes a washing of the feathers in a washing chamber with an organic cleaning liquid consisting primarily of chlorinated hydrocarbons, drying the feather material in a drying compartment at a temperature of up to 130.degree. C. with the volume of the drying compartment exceeding that of the washing chamber by from three to ten times and distilling the cleaning liquid to remove solid materials therefrom to prepare the cleaning liquid for reuse in the washing step.
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