Treatment of leather

The known treatment of leather using tanning, rechroming, retanning and dyeing stages is improved by treating the leather with an aq. dispersion of a polymer (I). (I) is a polyamide or polyester. Uses (I) dispersions of solids content up to 50 %, pH 2-8 esp. 2-4.5, and particle size (mostly) up to 2...

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Bibliographische Detailangaben
Hauptverfasser:	KANNIAH NAIDU GOPALA KRISHNA, VIR BHANU SINGH, MOORTHY PUSHPENDAR KUMAR KAUSHIK, HARIHARAN SANKARASUBRAMANIAN
Format:	Patent
Sprache:	eng ; ita
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:	The known treatment of leather using tanning, rechroming, retanning and dyeing stages is improved by treating the leather with an aq. dispersion of a polymer (I). (I) is a polyamide or polyester. Uses (I) dispersions of solids content up to 50 %, pH 2-8 esp. 2-4.5, and particle size (mostly) up to 2 micron. The dispersion is suitably obtd. using an attrition mill.