Enzymatic method for hair recovery with concurrent opening of hide structure

What is disclosed is a method for the recovery of hair from an animal hide and for a concurrent opening of the hide structure using a proteolytic enzyme, which method comprises first pre-treating the hide, free of preservative salt, in the acid pH region with a material cleaving disulfide bridges an...

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Bibliographische Detailangaben
Hauptverfasser:	PFLEIDERER, ERNST, MONSHEIMER, ROLF
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS FOR TANNING HIDES LEATHER METALLURGY PELTS SKINS
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Beschreibung
Zusammenfassung:	What is disclosed is a method for the recovery of hair from an animal hide and for a concurrent opening of the hide structure using a proteolytic enzyme, which method comprises first pre-treating the hide, free of preservative salt, in the acid pH region with a material cleaving disulfide bridges and then, without a previous softening, concurrently loosening hair and opening the hide structure by treating said hide with a protease, effective in the alkaline region, at a pH value of about 11 to about 13.