GB921074A - Improvements in leather tanning processes - Google Patents

Improvements in leather tanning processes

Info

Publication number
GB921074A
GB921074A GB2225261A GB2225261A GB921074A GB 921074 A GB921074 A GB 921074A GB 2225261 A GB2225261 A GB 2225261A GB 2225261 A GB2225261 A GB 2225261A GB 921074 A GB921074 A GB 921074A
Authority
GB
United Kingdom
Prior art keywords
treatment
solution
amides
leather
leathers
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
GB2225261A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB921074A publication Critical patent/GB921074A/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

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

921,074. Treating leather. M. PAQUET. June 20, 1961 [June 30, 1960], No. 22252/61. Class 76. A process for the treatment of zirconiumtanned leathers, which comprises treating a zirconium-tanned leather with a solution in an organic solvent of at least one complex fatty amide derived from aliphatic amines containing 8-22 carbon atoms by dehydration in the presence of a fatty acid, and then subjecting the leather to a water treatment. The treatment of the leathers is carried out by impregnation, in the open air or in a partial vacuum with recovery of the solvent, with the solution, at a temperature between 30‹ and 55‹ C., the impregnation lasting between 10 and 30 minutes, the said solution containing the amides having a concentration of dry extract between 12 and 45%, the said dry extract containing 6 to 100% (and preferably between 25 and 45%), of dry amides and this treatment being followed by hydrolysis by soaking in water. The amides may be used in the form of aqueous dispersions prepared, prior to the dispersion, in the form of a concentrated solution in an appropriate solvent, and dispersed by means of an emulsifying agent, the surfaceactive effects of which are destroyed with the drying. Specification 847,832 is referred to.
GB2225261A 1960-06-30 1961-06-20 Improvements in leather tanning processes Expired GB921074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831560A FR1269667A (en) 1960-06-30 1960-06-30 Improvements in the tanning processes of zirconium leathers and resulting products

Publications (1)

Publication Number Publication Date
GB921074A true GB921074A (en) 1963-03-13

Family

ID=8734521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2225261A Expired GB921074A (en) 1960-06-30 1961-06-20 Improvements in leather tanning processes

Country Status (2)

Country Link
FR (1) FR1269667A (en)
GB (1) GB921074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101921882A (en) * 2010-05-21 2010-12-22 河北肃昂裘革有限公司 Energy-saving and environmental-protection method for tanning raccoon fur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101921882A (en) * 2010-05-21 2010-12-22 河北肃昂裘革有限公司 Energy-saving and environmental-protection method for tanning raccoon fur

Also Published As

Publication number Publication date
FR1269667A (en) 1961-08-18

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