EP 0778900 A1 19970618 - PICKLING OF HIDES AND SKINS
Title (en)
PICKLING OF HIDES AND SKINS
Title (de)
PICKELN VON HAUTBLÖSSEN
Title (fr)
PICKLAGE DES PEAUX
Publication
Application
Priority
- AU 9500566 W 19950901
- AU PM780494 A 19940901
Abstract (en)
[origin: WO9606953A1] A pretreatment method in the tanning process for modifying the properties of a hide of skin of an animal is disclosed in which the pretreatment step comprises contacting the hide or skin with a pickling solution formed from a pickling agent which comprises at least one or more of phenol mono-, di- or trisulphonic acid or derivatives thereof, either singly or in combination, including combinations with other materials, which treatment is effective at a final pH of or below 3.4, and there is even penetration of the pickling solution into the hide or skin without swelling taking place in the absence of added salt. The advantage of the pickling solution and method of treatment as described is that a low salt content effluent is produced.
IPC 1-7
IPC 8 full level
C14C 1/08 (2006.01)
CPC (source: EP)
C14C 1/08 (2013.01)
Designated contracting state (EPC)
ES GB IT PT
DOCDB simple family (publication)
WO 9606953 A1 19960307; AU PM780494 A0 19940922; EP 0778900 A1 19970618; EP 0778900 A4 19971126; NZ 292070 A 19990128; ZA 957334 B 19960328
DOCDB simple family (application)
AU 9500566 W 19950901; AU PM780494 A 19940901; EP 95930337 A 19950901; NZ 29207095 A 19950901; ZA 957334 A 19950831