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GB1092965A - Process for the dyeing of chrome leather - Google Patents

Process for the dyeing of chrome leather

Info

Publication number
GB1092965A
GB1092965A GB2140266A GB2140266A GB1092965A GB 1092965 A GB1092965 A GB 1092965A GB 2140266 A GB2140266 A GB 2140266A GB 2140266 A GB2140266 A GB 2140266A GB 1092965 A GB1092965 A GB 1092965A
Authority
GB
United Kingdom
Prior art keywords
diamine
dimethylamino
propylene
water
hydroxyl groups
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
GB2140266A
Inventor
Wulf Von Bonin
Antonis Papayannis
Karl Hartwig Richert
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1092965A publication Critical patent/GB1092965A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Water-soluble polymeric compounds which are made up at least partly of recurrent units of configuration -CH(COX1)-CH(COX2)- in which X1 and X2 are respectively hydroxyl groups and amine radicals of the formula -NH-(CH2)nNYZ in which Y and Z independently are hydrogen atoms or alkyl groups containing 1-6 carbon atoms and n is 0-6 with the proviso that the ratio of amine radicals to hydroxyl groups in the water-soluble polymeric compound is 0.15 to 1:1, preferably 0.4 to 1:1. In examples (a)-(i) maleic anhydride is copolymerized with styrene in ethyl acetate in presence of benzoyl peroxide and then reacted with (a) N-dimethyl aminopropylene-diamine, (b) asymmetrical dimethyl-hydrazine, (c) and (d) N-dimethylamino-propylene-diamine, (e) N-dimethylamino-propylene-diamine, (g) N - dimethylamino - ethylene-diamine, (h) N - dimethylamino - propylene-diamine, (i) N - methyl - butyl - propylene-diamine; (k) equimolar amounts of maleic anhydride and vinyl acetate are polymerized and then reacted with N-dimethylamino-propylene-diamine. Molecular weights are within the range 500-80,000.ALSO:Chrome leather which has been mask-tanned and/or retanned with synthetic and/or vegetable agents and/or pre- or after-treated with anionic complex formers is dyed in the presence of a water-soluble polymeric compound or a salt thereof made up at least partly of recurrent units of the configuration -CH(COX1) -CH(COX2)- in which X1 and X2 are respectively hydroxyl groups and amine radicals of the formula -NH(CH2)n-NYZ in which Y and Z independently of one another are hydrogen atoms or alkyl groups containing 1-6 carbon atoms and n is a number from 0-6 with the proviso that the ratio of amine radicals to hydroxyl groups in the water-soluble polymeric compound is 0.15 to 1:1 preferably 0.4 to 1:1. The amount of the above polymeric compound is in general 0.2-2% referred to the showed weight of the chrome leather, azo, metal complex and triphenylmethane dyes are referred to. The leather is first tanned, then retanned in known manner, then neutralised and dyed in a drum containing 250% of water at 55-60 DEG C the polymeric compounds being added before dyeing or in the course of the dyeing operation, after each addition of dye 8.5% formic acid was added corresponding to five times the amount of dye previously applied and the leather was milled each time for 15 minutes.
GB2140266A 1965-05-14 1966-05-13 Process for the dyeing of chrome leather Expired GB1092965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0046061 1965-05-14

Publications (1)

Publication Number Publication Date
GB1092965A true GB1092965A (en) 1967-11-29

Family

ID=7100812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2140266A Expired GB1092965A (en) 1965-05-14 1966-05-13 Process for the dyeing of chrome leather

Country Status (5)

Country Link
BE (1) BE680989A (en)
CH (1) CH459950A (en)
ES (1) ES326692A1 (en)
GB (1) GB1092965A (en)
NL (1) NL146558B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243390A (en) 1978-12-29 1981-01-06 Ciba-Geigy Corporation Process for dyeing or printing fibrous material using quaternary polymerized ammonium salts as assistants
DE2930342A1 (en) * 1979-07-26 1981-02-19 Roehm Gmbh IMPROVED METHOD FOR PRODUCING LEATHER
GB2121808A (en) * 1982-06-08 1984-01-04 Inst Francais Du Petrole Cloud-point-lowering copolymer additives for fuel compositions
DE3702153A1 (en) * 1987-01-26 1988-08-04 Stockhausen Chem Fab Gmbh GIVING IN PROCESS
US5074884A (en) * 1989-10-18 1991-12-24 Bayer Aktiengesellschaft Process for the dyeing of leather with anionic dyes and polyaminoamide resin as dyeing auxiliary

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243390A (en) 1978-12-29 1981-01-06 Ciba-Geigy Corporation Process for dyeing or printing fibrous material using quaternary polymerized ammonium salts as assistants
DE2930342A1 (en) * 1979-07-26 1981-02-19 Roehm Gmbh IMPROVED METHOD FOR PRODUCING LEATHER
GB2121808A (en) * 1982-06-08 1984-01-04 Inst Francais Du Petrole Cloud-point-lowering copolymer additives for fuel compositions
DE3702153A1 (en) * 1987-01-26 1988-08-04 Stockhausen Chem Fab Gmbh GIVING IN PROCESS
US5074884A (en) * 1989-10-18 1991-12-24 Bayer Aktiengesellschaft Process for the dyeing of leather with anionic dyes and polyaminoamide resin as dyeing auxiliary

Also Published As

Publication number Publication date
ES326692A1 (en) 1967-03-01
CH459950A (en) 1968-07-31
NL146558B (en) 1975-07-15
NL6606540A (en) 1966-11-15
BE680989A (en) 1966-10-17
DE1469727A1 (en) 1968-12-19

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