GB836808A - Improvements in or relating to the production of leather - Google Patents

Improvements in or relating to the production of leather

Info

Publication number
GB836808A
GB836808A GB20912/56A GB2091256A GB836808A GB 836808 A GB836808 A GB 836808A GB 20912/56 A GB20912/56 A GB 20912/56A GB 2091256 A GB2091256 A GB 2091256A GB 836808 A GB836808 A GB 836808A
Authority
GB
United Kingdom
Prior art keywords
fat
sulphated
oil
liquored
retanned
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
GB20912/56A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB836808A publication Critical patent/GB836808A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C9/00Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes

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

836,808. Fat-liquoring leather. DU PONT DE NEMOURS & CO., E. I. July 5, 1956 [July 5, 1955; March 30, 1956], No. 20912/56. Addition to 762,997. Class 76. The complex compounds of the Werner type in which a trivalent nuclear chromium atom is co-ordinated with carboxylic acids groups having at least 10 carbon atoms as described in the parent Specification are applied to the leather before, or preferably after, conventional fat-liquoring. Conventional fat-liquoring oils named are neat's foot, coconut, fish, sperm, castor, mustard seed, tea seed, lard, corn, olive, linseed, rapeseed, soya bean and tallow oil which may be emulsified and/or sulphated. The pH is adjusted to 3-3.5 by the addition of a monobasic acid such as formic acid before adding the chromium complex. In examples: (1) chrome-tanned cowhide is split, retanned with Quebrancho extract, fat-liquored with sulphated neat's-foot and cod oil and subsequently egg yolk, dyed, then treated with formic acid and finally stearato chromic chloride in aqueous iso-propanol; (2) cowhide is tanned and retanned as in (1), fat-liquored with sulphated neat's-foot and fish oil and egg yolk, dyed and finally treated with stearato chromic chloride in aqueous iso-propanol; (3) steerhide is tanned in a manner related to (1), retanned with a mixture of Quebrancho and wattle, dyed, fat-liquored with cationic sperm oil, sulphated fish oil and emulsified fish oil and finally myristato chromic chloride.
GB20912/56A 1955-07-05 1956-07-05 Improvements in or relating to the production of leather Expired GB836808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US836808XA 1955-07-05 1955-07-05

Publications (1)

Publication Number Publication Date
GB836808A true GB836808A (en) 1960-06-09

Family

ID=22179989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20912/56A Expired GB836808A (en) 1955-07-05 1956-07-05 Improvements in or relating to the production of leather

Country Status (1)

Country Link
GB (1) GB836808A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102942875A (en) * 2012-10-17 2013-02-27 北京桑普生物化学技术有限公司 Concentrated solution for preparing leather polish and care products, and application
PL424659A1 (en) * 2018-02-22 2019-08-26 Instytut Przemysłu Skórzanego W Łodzi Method for leather dressing
PL424657A1 (en) * 2018-02-22 2019-08-26 Instytut Przemysłu Skórzanego Application of leathers modified with bamboo extract and/or maize and/or linen in production of leather and leather-textile footwear
CN116391049A (en) * 2020-08-07 2023-07-04 尤尼克有限责任公司 Retanning and fatliquoring composition comprising hemp oil derivatives

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102942875A (en) * 2012-10-17 2013-02-27 北京桑普生物化学技术有限公司 Concentrated solution for preparing leather polish and care products, and application
CN102942875B (en) * 2012-10-17 2015-09-23 北京桑普生物化学技术有限公司 A kind of concentrated solution for the preparation of polishing leather care products and purposes
PL424659A1 (en) * 2018-02-22 2019-08-26 Instytut Przemysłu Skórzanego W Łodzi Method for leather dressing
PL424657A1 (en) * 2018-02-22 2019-08-26 Instytut Przemysłu Skórzanego Application of leathers modified with bamboo extract and/or maize and/or linen in production of leather and leather-textile footwear
CN116391049A (en) * 2020-08-07 2023-07-04 尤尼克有限责任公司 Retanning and fatliquoring composition comprising hemp oil derivatives

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