USANDO COMPOSTI DI ALLUMINIO (III)PROCESSO PER LA CONCIATURA DI PELLI E TITANIO (IV)

USANDO COMPOSTI DI ALLUMINIO (III)PROCESSO PER LA CONCIATURA DI PELLI E TITANIO (IV)

In a leather tanning process, animal skins are treated with a tanning agent comprising an aluminium (III)/titanium (IV) mixed complex with a salt of a polyhydroxymonocarboxylic acid as a masking compound. The masking compound preferably has the general formula: HOCH2(CHOH)n CO2M wherein M is an alka...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: COVINGTON ANTHONY DALE
Format: Patent
Sprache: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:In a leather tanning process, animal skins are treated with a tanning agent comprising an aluminium (III)/titanium (IV) mixed complex with a salt of a polyhydroxymonocarboxylic acid as a masking compound. The masking compound preferably has the general formula: HOCH2(CHOH)n CO2M wherein M is an alkali metal, and n is 2 to 6. Especially preferred masking compounds are sodium gluconate and sodium glucoheptonate. The same process can be used for a wide range of skins, both as a base tannage and in combination with other tanning processes.