Economy and plumping chrome tanning

Details Economy and plumping chrome tanning Economy and plumping chrome tanning

1993-08-12

1996-03-26

Willis, Jr., Prince

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 9415, 8 9418, 8 9426, 8 9433, C14C 108, C14C 304

Patent

active

055017096

ABSTRACT:
The present invention relates to a process for economy and plumping chrome tanning by admixing the pelts in the pickle bath with an aldehyde- and/or keto-carboxylic acid and then tanning, which comprises, prior to the addition of the aldehyde- and/or keto-carboxylic acid with or without other organic and/or inorganic acids, pretreating the delimed and bated pelts with an anionic, colloidal silicate solution.

REFERENCES:
patent: 2276315 (1942-03-01), Kirk
patent: 4042321 (1977-08-01), Ba/ cker et al.
patent: 4715861 (1987-12-01), Lotz et al.
patent: 4938779 (1990-07-01), Friese et al.
patent: 4978361 (1990-12-01), Fuchs et al.
patent: 5215542 (1993-06-01), Pore
Sharphouse, Leather Worker's Handbook, 1963, pp. 4-5, (Month Unknown).
Thorstensen, Practical Leather Technology, 1976, pp. 284 and 286, (Month Unknown).

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