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GB547129A - Improved tanning process - Google Patents

Improved tanning process

Info

Publication number
GB547129A
GB547129A GB164341D GB164341D GB547129A GB 547129 A GB547129 A GB 547129A GB 164341 D GB164341 D GB 164341D GB 164341 D GB164341 D GB 164341D GB 547129 A GB547129 A GB 547129A
Authority
GB
United Kingdom
Prior art keywords
salts
mols
proportion
salt
tanning process
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB164341D
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority claimed from GB1643/41A external-priority patent/GB547039A/en
Publication of GB547129A publication Critical patent/GB547129A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/04—Mineral tanning
    • C14C3/06—Mineral tanning using chromium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

547,129. Making leather, BURCHILL, J., CALLAGHAN, A. S., HUNNAM, R. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 7, 1941, No. 1648. [Class 76] Pelts are tanned, without previous pickling, by treatment with a liquor containing a chrome tanning agent in conjunction with a watersoluble salt of a dicarboxylic saturated aliphatic acid containing 4 to 8 carbon atoms in the proportion of mols of salt to mols of Cr 2 O 3 within the range of 1:4 to 1:1 and preferably in the proportion of 1:2. Sodium adipate is particularly suitable ; other salts are succinates, glutanates, pimelates or suberates. The potassium or ammonium salts are also suitable. The employment of adipic acid salts is described in a number of examples.
GB164341D 1941-02-07 1941-02-07 Improved tanning process Expired GB547129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1643/41A GB547039A (en) 1940-02-07 1941-02-07 Weighting filaments of synthetic linear polyamides

Publications (1)

Publication Number Publication Date
GB547129A true GB547129A (en) 1942-08-14

Family

ID=9725497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB164341D Expired GB547129A (en) 1941-02-07 1941-02-07 Improved tanning process

Country Status (2)

Country Link
FR (1) FR888219A (en)
GB (1) GB547129A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004087967A1 (en) * 2003-04-04 2004-10-14 Tfl Ledertechnick Gmbh Composition comprising chromium salts for tanning
WO2009082361A1 (en) * 2007-12-25 2009-07-02 Soda Sanayi A. S. Modified chromium complex and its use in leather industries.
CN106282434A (en) * 2016-09-14 2017-01-04 齐河力厚化工有限公司 A kind of process hides salt-free pickling technique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726796A1 (en) * 1987-08-12 1989-02-23 Bayer Ag METHOD FOR HIGHLY EXHAUSTING CHROME TANNING

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004087967A1 (en) * 2003-04-04 2004-10-14 Tfl Ledertechnick Gmbh Composition comprising chromium salts for tanning
WO2009082361A1 (en) * 2007-12-25 2009-07-02 Soda Sanayi A. S. Modified chromium complex and its use in leather industries.
CN106282434A (en) * 2016-09-14 2017-01-04 齐河力厚化工有限公司 A kind of process hides salt-free pickling technique

Also Published As

Publication number Publication date
FR888219A (en) 1943-12-07

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