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
  • D06P1/64—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 low-molecular-weight organic compounds without sulfate or sulfonate groups
  • D06P1/651—Compounds without nitrogen
  • D06P1/65106—Oxygen-containing compounds
  • D06P1/65125—Compounds containing ester groups
• • 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
• • 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
  • C14C3/08—Chemical tanning by organic agents
• • 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
  • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
  • C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring
• • 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
  • D06P1/60—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 polyethers
  • D06P1/613—Polyethers without nitrogen
  • D06P1/6138—Polymerisation products of glycols, e.g. Carbowax, Pluronics
• • 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
  • D06P1/64—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 low-molecular-weight organic compounds without sulfate or sulfonate groups
  • D06P1/642—Compounds containing nitrogen
• • 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
  • D06P1/64—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 low-molecular-weight organic compounds without sulfate or sulfonate groups
  • D06P1/642—Compounds containing nitrogen
  • D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
  • D06P1/6492—(Thio)urethanes; (Di)(thio)carbamic acid derivatives; Thiuramdisulfide
• • 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

Definitions

• DE-OS 2 626 430 discloses the use of compounds which are obtained by condensation of carboxylic acids with compounds containing hydroxyl or amino groups in a molar ratio are produced, for example the carboxylic acids of the formulas (I) and (II), known as tanning agents or retanning agents.
• the (post) tanning with compounds containing amino groups and containing urethane groups is e.g. described in DE-OS 2 416 485 and EP-PS 0 001 067.
• amino-containing polyethers in leather dyeing is e.g. known from GB-PS 705 335, US-PS 3 334 960, US-PS 4 272 243 and DE-OS 2 539 671.
• the leather treatment agents according to the invention preferably contain components a) and b) in a weight ratio of 5-95: 95-5. They are used, for example, as aqueous solutions.
• the pH of the ready-to-use aqueous solutions is 1.5-10, especially 3.5-7.5. It can be adjusted by adding acids or alkalis.
• the preferred total concentration of mixture components a) and b) in the aqueous solutions is 20-60% by weight.
• the molecular weights of the carboxylic acids (I) and (II) are between 170 and 100,000. Preference is given to products which are more than 90% in the molecular weight range between 170 and 10,000 and particularly preferably between 300 and 10,000.
• the carboxylic acids (I) and (II) and preferred starting products are described in DE-OS 2 626 430.
• the compounds b) containing amino groups can also contain ether, ester, carboxamide and / or urethane groups. They are known from the literature mentioned above. Their preferred molecular weights are 300-12,000, especially 300-3000.
• Components b) include, in particular, polyethers containing amino groups, which are prepared by adding ethylene oxide and / or propylene oxide to mono-, di- or polyamines having primary or secondary amino groups or to alkanolamines. They usually have 1-6 hydroxyl groups.
• the processes for leather treatment are carried out according to known methods in, for example, tanning drums or tanning mixers.
• the temperatures are generally 10-90 ° C, preferably 20-60 ° C.
• the aqueous treatment liquors advantageously contain a total of 0.5-20% by weight of components a) and b).
• the agents according to the invention can be used at various points in leather treatment or production. For example, they can be used for retanning chrome and vegetable tanned leather or simultaneously with chrome tanning or replacement tanning agents. However, they can also be used in the dyeing liquor or for greasing.
• the joint treatment with the anionic compounds a) and the cationic compounds b) balances out different charge ratios on the leather surface and prevents deeper penetration into the leather. This achieves an effect that is known as gloss lubrication in the leather industry.
• dyeings with a high level of levelness, brilliance and depth and a good removal of the dyeing liquor are achieved.
• Soft, smooth leather with a good grain throw is obtained.
• components a) and b) penetrate deeply, if they are used individually, as is known leather and cause a more unevenly charged leather surface. This makes the colorations less important.
• 1117 g of diethylethanolamine and 1500 ml of toluene are placed in a glass flask equipped with an azeotropic dewatering device and the air is replaced by nitrogen.
• 100 g of 50% aqueous potassium hydroxide solution are added at 80 ° C., and 66 g of water are removed from the reaction mixture at 100-115 ° C. by azeotropic distillation.
• 8883 g of ethylene oxide are then slowly metered in at 90-100 ° C. and 1.4-1.6 bar nitrogen and the mixture is stirred at 100 ° C. for 3 hours.
• the alkaline reaction product is mixed with 1000 g of water and neutralized with 350 g of a 12.5% aqueous sulfuric acid.
• the percentages relate to the weight of the leather
• the liquor is drained, rinsed at 40 ° C. for 10 minutes, 50 ⁇ 40 ° C. warm water is added, and after 20 minutes 2% of the mixture according to Example 2.1, 2.2, 2.3 or 2.4 is added, with 4% of a self-dulling Chromium tanning dye (®BAYCHROM CL), adds 1% sodium formate after 60 minutes and 2% sodium bicarbonate after 10 minutes, runs for 60 minutes, pre-fats, drains off and rinses.
• a self-dulling Chromium tanning dye ®BAYCHROM CL
• the chrome tanning described above is carried out without adding a mixture according to the invention.
• the addition of 1% of the mixture according to Example 2.1, 2.2, 2.3 or 2.4 takes place only in the dye liquor after the dyeing.
• the after-treatment time is 20 minutes.
• the X data refer to the fold weight

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Treatment And Processing Of Natural Fur Or Leather (AREA)
• Coloring (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6276051

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (1)

Family Cites Families (6)

• 1985
  • 1985-07-18 DE DE19853525605 patent/DE3525605A1/de not_active Withdrawn
• 1986
  • 1986-07-07 EP EP86109234A patent/EP0209780B1/fr not_active Expired
  • 1986-07-07 DE DE8686109234T patent/DE3662058D1/de not_active Expired
  • 1986-07-14 JP JP61163927A patent/JPS6220599A/ja active Pending
  • 1986-07-16 CA CA000513943A patent/CA1285351C/fr not_active Expired - Lifetime
  • 1986-07-18 ES ES8600393A patent/ES2000358A6/es not_active Expired
• 1989
  • 1989-08-11 US US07/392,335 patent/US5103521A/en not_active Expired - Fee Related

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