Henkel Kommanditgesellschaft Auf Aktien

Henkel Kommanditgesellschaft Auf Aktien (Henkel Kgaa)

Juergen Plapper

Klaus Schumann

Emil Ruscheinsky

Emanuel Arndt

Heinz G Smolka

Milan J Schwuger

Adolf Asbeck

Rolf Schmid

Hans F Pfeiffer

Herman Jansen

In the process of tanning for the production of leather comprising subjecting pickled uncured hides to the action of an aqueous liquor containing

Use of water-insoluble aluminosilicates in tanning process for the

In the process of tanning for the production of dressed fur skins comprising subjecting pickled fur skins to the action of an aqueous liquor containing tanning agents, the improvement which comprises adding to the pickling bath as sole tanning agent a water-insoluble aluminosilicate, containing bound water, of the formula

Water-insoluble aluminosilicates as tanning agents for the dressing of

In an improved process of tanning for the production of leather comprising subjecting pickled uncured hides to the action of an aqueous liquor containing (1) chemical tanning or pretanning agents and (2) auxiliary chemicals to tanning and recovering leather, the improvement consisting essentially of employing (i) a water-insoluble aluminosilicate, containing bound water, of the formula

Water-insoluble aluminosilicates in the manufacture of leather

The present invention concerns a process for the softening of furs while at the same time taking the greatest possible care of the appearance of the hair. The process of this invention comprises contacting a fur with an acid aqueous liquor containing an acid protease from a fungus strain of the genus Rhizopus rhizopodiformis, said acid protease being effective in the pH range of from about 2.5 to 6.5.

Process for the enzymatic softening of furs

In the process of tanning for the production of leather comprising subjecting uncured hides to the action of an aqueous liquor containing (1) chemical tanning agents, and (2) auxiliary chemicals to tanning and recovering leather, the improvement consisting of essentially of employing water-insoluble aluminosilicate, containing bound water of the formula

Water-insoluble alkali metal aluminosilicates and polycarboxylic acids

In the process of washing and cleaning rawhides and fur skins before tanning comprising subjecting rawhides and fur skins to the action of an aqueous solution containing (1) surface-active compounds selected from the group consisting of anionic surface-active compounds, nonionic surface-active compounds and mixtures thereof, (2) emulsifiable solvents for fats and (3) electrolytes, removing said aqueous solution, rinsing, and recovering washed and cleaned rawhides and fur skins, the improvement consisting essentially of employing a fine-particulate, water-insoluble alkali metal aluminosilicate, containing bound water, of the formula

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Hilden, Germany

Juergen Plapper