EP0572353B2 - Verfahren zum Färben von Leder - Google Patents
Verfahren zum Färben von Leder Download PDFInfo
- Publication number
- EP0572353B2 EP0572353B2 EP19930810365 EP93810365A EP0572353B2 EP 0572353 B2 EP0572353 B2 EP 0572353B2 EP 19930810365 EP19930810365 EP 19930810365 EP 93810365 A EP93810365 A EP 93810365A EP 0572353 B2 EP0572353 B2 EP 0572353B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- process according
- dye
- weight
- methyl
- radical
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 39
- 238000004043 dyeing Methods 0.000 title claims description 29
- 239000010985 leather Substances 0.000 title claims description 22
- 239000000975 dye Substances 0.000 claims description 79
- -1 polyazo Polymers 0.000 claims description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 16
- 150000003254 radicals Chemical class 0.000 claims description 13
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 9
- VOWZNBNDMFLQGM-UHFFFAOYSA-N 2,5-dimethylaniline Chemical compound CC1=CC=C(C)C(N)=C1 VOWZNBNDMFLQGM-UHFFFAOYSA-N 0.000 claims description 8
- JJYPMNFTHPTTDI-UHFFFAOYSA-N 3-methylaniline Chemical compound CC1=CC=CC(N)=C1 JJYPMNFTHPTTDI-UHFFFAOYSA-N 0.000 claims description 8
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 8
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 8
- RNVCVTLRINQCPJ-UHFFFAOYSA-N o-toluidine Chemical compound CC1=CC=CC=C1N RNVCVTLRINQCPJ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 6
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 6
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 claims description 6
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 5
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 5
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 5
- 125000004769 (C1-C4) alkylsulfonyl group Chemical group 0.000 claims description 4
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 4
- CWLKGDAVCFYWJK-UHFFFAOYSA-N 3-aminophenol Chemical compound NC1=CC=CC(O)=C1 CWLKGDAVCFYWJK-UHFFFAOYSA-N 0.000 claims description 4
- 229940018563 3-aminophenol Drugs 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000872 buffer Substances 0.000 claims description 4
- 125000006125 ethylsulfonyl group Chemical group 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- VMPITZXILSNTON-UHFFFAOYSA-N o-anisidine Chemical compound COC1=CC=CC=C1N VMPITZXILSNTON-UHFFFAOYSA-N 0.000 claims description 4
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 claims description 4
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 claims description 4
- WXWCDTXEKCVRRO-UHFFFAOYSA-N para-Cresidine Chemical compound COC1=CC=C(C)C=C1N WXWCDTXEKCVRRO-UHFFFAOYSA-N 0.000 claims description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 4
- 125000004397 aminosulfonyl group Chemical group NS(=O)(=O)* 0.000 claims description 3
- 125000000043 benzamido group Chemical group [H]N([*])C(=O)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 3
- 125000004170 methylsulfonyl group Chemical group [H]C([H])([H])S(*)(=O)=O 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims description 2
- BAHPQISAXRFLCL-UHFFFAOYSA-N 2,4-Diaminoanisole Chemical compound COC1=CC=C(N)C=C1N BAHPQISAXRFLCL-UHFFFAOYSA-N 0.000 claims description 2
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 claims description 2
- AVYGCQXNNJPXSS-UHFFFAOYSA-N 2,5-dichloroaniline Chemical compound NC1=CC(Cl)=CC=C1Cl AVYGCQXNNJPXSS-UHFFFAOYSA-N 0.000 claims description 2
- NAZDVUBIEPVUKE-UHFFFAOYSA-N 2,5-dimethoxyaniline Chemical compound COC1=CC=C(OC)C(N)=C1 NAZDVUBIEPVUKE-UHFFFAOYSA-N 0.000 claims description 2
- LOCWBQIWHWIRGN-UHFFFAOYSA-N 2-chloro-4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1Cl LOCWBQIWHWIRGN-UHFFFAOYSA-N 0.000 claims description 2
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 claims description 2
- XTTIQGSLJBWVIV-UHFFFAOYSA-N 2-methyl-4-nitroaniline Chemical compound CC1=CC([N+]([O-])=O)=CC=C1N XTTIQGSLJBWVIV-UHFFFAOYSA-N 0.000 claims description 2
- JBIJLHTVPXGSAM-UHFFFAOYSA-N 2-naphthylamine Chemical compound C1=CC=CC2=CC(N)=CC=C21 JBIJLHTVPXGSAM-UHFFFAOYSA-N 0.000 claims description 2
- DPJCXCZTLWNFOH-UHFFFAOYSA-N 2-nitroaniline Chemical compound NC1=CC=CC=C1[N+]([O-])=O DPJCXCZTLWNFOH-UHFFFAOYSA-N 0.000 claims description 2
- WAVOOWVINKGEHS-UHFFFAOYSA-N 3-(diethylamino)phenol Chemical compound CCN(CC)C1=CC=CC(O)=C1 WAVOOWVINKGEHS-UHFFFAOYSA-N 0.000 claims description 2
- QNAAQOLWUDNQFY-UHFFFAOYSA-N 3-chloroaniline Chemical compound NC1=CC=CC(Cl)=C1.NC1=CC=CC(Cl)=C1 QNAAQOLWUDNQFY-UHFFFAOYSA-N 0.000 claims description 2
- NDACNGSDAFKTGE-UHFFFAOYSA-N 3-hydroxydiphenylamine Chemical compound OC1=CC=CC(NC=2C=CC=CC=2)=C1 NDACNGSDAFKTGE-UHFFFAOYSA-N 0.000 claims description 2
- XJCVRTZCHMZPBD-UHFFFAOYSA-N 3-nitroaniline Chemical compound NC1=CC=CC([N+]([O-])=O)=C1 XJCVRTZCHMZPBD-UHFFFAOYSA-N 0.000 claims description 2
- ZWUBBMDHSZDNTA-UHFFFAOYSA-N 4-Chloro-meta-phenylenediamine Chemical compound NC1=CC=C(Cl)C(N)=C1 ZWUBBMDHSZDNTA-UHFFFAOYSA-N 0.000 claims description 2
- QSNSCYSYFYORTR-UHFFFAOYSA-N 4-chloroaniline Chemical compound NC1=CC=C(Cl)C=C1 QSNSCYSYFYORTR-UHFFFAOYSA-N 0.000 claims description 2
- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 claims description 2
- 150000004982 aromatic amines Chemical class 0.000 claims description 2
- 229910003002 lithium salt Inorganic materials 0.000 claims description 2
- 159000000002 lithium salts Chemical class 0.000 claims description 2
- NCBZRJODKRCREW-UHFFFAOYSA-N m-anisidine Chemical compound COC1=CC=CC(N)=C1 NCBZRJODKRCREW-UHFFFAOYSA-N 0.000 claims description 2
- BHAAPTBBJKJZER-UHFFFAOYSA-N p-anisidine Chemical compound COC1=CC=C(N)C=C1 BHAAPTBBJKJZER-UHFFFAOYSA-N 0.000 claims description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 2
- 229960004889 salicylic acid Drugs 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 8
- 229910001508 alkali metal halide Inorganic materials 0.000 claims 4
- 150000008045 alkali metal halides Chemical class 0.000 claims 4
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims 2
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 claims 2
- 230000000844 anti-bacterial effect Effects 0.000 claims 2
- 239000007798 antifreeze agent Substances 0.000 claims 2
- 239000003899 bactericide agent Substances 0.000 claims 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims 2
- 238000009472 formulation Methods 0.000 claims 2
- 239000000417 fungicide Substances 0.000 claims 2
- 150000001412 amines Chemical class 0.000 claims 1
- 238000010016 exhaust dyeing Methods 0.000 claims 1
- 239000003513 alkali Substances 0.000 description 16
- 150000004820 halides Chemical class 0.000 description 16
- 239000000243 solution Substances 0.000 description 11
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RJSYPKWVIJGNLO-UHFFFAOYSA-N CCOClOC Chemical compound CCOClOC RJSYPKWVIJGNLO-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 235000019253 formic acid Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 150000003839 salts Chemical group 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 125000000738 acetamido group Chemical group [H]C([H])([H])C(=O)N([H])[*] 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N Nitrogen dioxide Chemical class O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 125000002510 isobutoxy group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])O* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000003270 potassium fluoride Nutrition 0.000 description 1
- 239000011698 potassium fluoride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000005920 sec-butoxy group Chemical group 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Inorganic materials [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 125000004213 tert-butoxy group Chemical group [H]C([H])([H])C(O*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
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
- 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
- D06P3/3206—Material containing basic nitrogen containing amide groups leather skins using acid dyes
- D06P3/3226—Material containing basic nitrogen containing amide groups leather skins using acid dyes dis-polyazo
Definitions
- the present invention relates to a method for dyeing leather with anionic Dyes and leather dyed using the process.
- the invention thus relates to a process for dyeing leather with anionic Dyes, characterized in that an aqueous solution is used for dyeing, containing a polyazo dye with at least 2 sulfo groups and less than 1.5% by weight, based on the weight of the dye, of alkali halide, the Dyes do not exist as lithium salts.
- Suitable substituents on the phenyl or naphthyl radical A are, for example, C 1 -C 4 -alkyl, which here and in general comprises methyl, ethyl, n- or iso-propyl or n-, iso-, sec.- or tert-butyl , C 1 -C 4 alkoxy, which generally means methoxy, ethoxy, n- or iso-propoxy or n-, iso-, sec- or tert-butoxy, halogen, for example fluorine, bromine and especially chlorine; Trifluoromethyl; C 1 -C 4 alkylsulfonyl, especially methyl or ethylsulfonyl; Sulfamoyl; N-mono- or N, N-di-C 1 -C 4 alkylsulfamoyl; Carbamoyl; N-mono- or N, N-di-C 1 -C 4 alkyl
- Preferred diazo components are compounds of the formula wherein R 1 and R 2 are each independently hydrogen, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, halogen, nitro, trifluoromethyl, C 1 -C 4 alkylsulfonyl, acetylamino, hydroxyacetylamino, propionylamino, sulfamoyl, carbamoyl , Cyano, carboxy or phenoxy mean.
- R 1 and R 2 are independently of one another hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine, nitro, trifluoromethyl, methylsulfonyl, ethylsulfonyl, sulfamoyl, carbamoyl, cyano, acetylamino and phenoxy.
- R 1 and R 2 independently of one another particularly preferably represent hydrogen, methyl, methoxy, nitro or chlorine.
- Examples of preferred compounds of the formula (3) are: Aniline, 2-, 3- or 4-methylaniline, 2-, 3- or 4-methoxyaniline, 2-, 3- or 4-chloroaniline, 2-, 3- or 4-nitroaniline, 2-chloro-4-nitroaniline, 2-methyl-4-nitroaniline, 2,5-dichloroaniline, 2,5-dimethylaniline, 2,5-dimethoxyaniline or 2-methoxy-5-methylaniline.
- X is OH and it is also preferred that the group X is not on the same ring as the NH 2 group.
- B denotes the rest of a coupling component, in particular a coupling component from the benzene or naphthalene series.
- B is preferably a radical of the formula wherein R 3 is hydroxy, amino, N-mono- or N, N-di-C 1 -C 4 alkylamino, phenylamino or o-, m- or p-methylphenylamino and R 4 and R 5 each independently of the other meanings R 3 have or represent hydrogen, benzoylamino, C 1 -C 4 alkanoylamino, carboxymethylamino, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, phenoxy, carboxy, halogen, nitro or sulfo.
- R 3 as N-mono- or N, N-di-C 1 -C 4 -alkylamino is, for example, methyl-, ethyl-, n- or iso-propyl- or n-, iso-, sec. - or tert.
- R 3 are hydroxy, amino, N-methyl- and N-ethylamino, N, N-dimethyl- and N, N-diethylamino and phenylamino.
- R 3 particularly preferably represents hydroxy or amino.
- R 4 and / or R 5 as well as the variables below as C 1 -C 4 alkyl are generally methyl, ethyl, n- or iso-propyl or n-, iso-, sec.- or tert-butyl.
- R 4 and / or R 5 or the following variables stand for C 1 -C 4 alkoxy, then methoxy, ethoxy, n- or iso-propoxy or n-, iso-, sec.- or tert.- Butoxy includes.
- R 4 and / or R 5 as halogen is generally, for example, fluorine, bromine and in particular chlorine, as in the following.
- R 4 and / or R 5 with the meaning C 1 -C 4 alkanoylamino are, for example, propionylamino, hydroxyacetylamino and in particular acetylamino.
- Sulfo generally includes the free acid form (-SO 3 H) as well as the salt form, alkali metal salts (Na, K) or ammonium salts being particularly suitable.
- R 4 and R 5 independently of one another preferably represent hydrogen, sulfo, acetylamino, methyl, ethyl, methoxy, ethoxy, chlorine, carboxy, hydroxy, amino, N-methyl- or N-ethylamino, N, N-dimethyl- or N, N-diethylamino or phenylamino and particularly preferably for hydrogen, amino, hydroxy, methyl, methoxy, phenylamino or N, N-dimethyl- or N, N-diethylamino.
- R 3 is hydroxyl, amino, N-methyl- or N-ethylamino, N, N-dimethyl- or N, N-diethylamino or phenylamino
- R 4 and R 5 each independently represent hydrogen, acetylamino, methyl, ethyl, methoxy, ethoxy, chlorine, carboxy, hydroxy, amino, N-methyl- or N-ethylamino, N, N-dimethyl- or N, N-diethylamino or phenylamino.
- a particularly preferred embodiment of the present invention relates to the use of 3-aminophenol, Resorcinol or 1,3-phenylenediamine as a coupling component.
- n is preferably 2 and m is preferably 1.
- the dyes of the formula (1) or (2) prepared in the usual way normally contain about 5 to 30% by weight. % Alkali halide, based on the weight of the dye. This alkali halide is used in the synthesis of the dye formed and / or added to the dye solution obtained to separate the dye. In addition, often the solid or liquid commercial form of the dye by adding alkali halide to the desired color strength set.
- an aqueous solution containing a dye is used with less than 1.5% by weight, based on the weight of the dye, of alkali halide.
- the dyes that are commercially available or produced in the usual way must therefore be used are largely freed from the alkali halide in the dyeing process according to the invention. This happens on itself known way, for example by reverse osmosis, ultrafiltration or dialysis. Such desalination processes are known, e.g. from EP-A 0 059782. Also known are the membranes used in these processes, e.g. from EP-A 0 061 424.
- the process conditions for this desalination are chosen so that dye solutions are obtained which contain less than 1.5% by weight, based on the weight of the dye, of alkali halide.
- Dye salts as well Salts with higher molecular weight cations and / or anions are not or only slightly removed.
- the dye is in the form of an aqueous solution which, if desired, can be concentrated or, e.g. by spray drying, can be evaporated to dryness.
- the dye liquor can contain other additives, e.g. Acids or bases for setting the desired pH value, and auxiliaries, such as. Wetting agents, greasing agents, color-deepening aids, leveling agents, and / or Antifoam.
- additives e.g. Acids or bases for setting the desired pH value
- auxiliaries such as. Wetting agents, greasing agents, color-deepening aids, leveling agents, and / or Antifoam.
- the dyeing is preferably carried out by the exhaust process, e.g. with a liquor ratio of 1: 1.5 to 1: 20, preferably 1: 2 to 1:10, and at temperatures of 20 to 100 ° C, preferably 30 to 60 ° C.
- the leather can be subjected to a pretreatment, for example neutralization or Walke.
- the dyeing time varies depending on the type of leather and the desired depth of color, but is generally between 30 and 180 minutes. After the dyeing, the leather is rinsed and finished as usual.
- Parts mean Parts by weight and percentages by weight.
- the dyes are used in commercially available powder form; the stated amounts of dye refer to the coupe 100% dye commercial form.
- This solution is desalinated in a laboratory reverse osmosis system under the following conditions: polysulfone membrane, approx. 40 ° C, feed: 12 l / h, 25 bar, flux 1289 l / m 2 d (average). After 4.5 hours, 1.9 kg of a solution with a dye content of 18.0% by weight and a sodium chloride content of 0.05% by weight (0.9% by weight, based on dye) are obtained. This desalted and concentrated solution is adjusted to a dye content of 15% after filtration through a 10 ⁇ m sieve with water.
- the leather is made into a liquor made from 1000 parts of water and 2 parts of ammonia 24% and 13.33 parts of the dye solution described above at 50 ° C.
- the mixture After a dyeing time of 60 minutes, the mixture is acidified with 4 parts of 85% formic acid and then 20 Minutes further colored.
- the dyed leather is finished after a treatment in a fresh bath with 1000 parts of water, 2.5 parts of a condensation product of formaldehyde, dicyandiamide, ammonium chloride and ethylenediamine and 0.5 parts of 85% formic acid for 45 minutes at 50 ° C.
- the leather obtained is dyed black is characterized by good fastness properties and good opacity.
- the leather neutralized in this way is then in a liquor of 1000 parts water, 2 parts ammonia 24% and 15 parts of the dye solution described in Example 1 are dyed at 50 ° C. After 30 minutes, the dyeing liquor 3 parts of a synthetic fatliquor (mixture of alkylbenzenes, aliphatic hydrocarbons, Alkanesulfonic acids and surfactants) and after a further 30 minutes 0.5 parts formic acid 85%, diluted with 5 parts Water, added. The treatment is then continued at 50 ° C. for 20 minutes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH168792A CH685251A5 (de) | 1992-05-26 | 1992-05-26 | Verfahren zum Färben von Leder. |
CH168792 | 1992-05-26 | ||
CH1687/92 | 1992-05-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0572353A1 EP0572353A1 (de) | 1993-12-01 |
EP0572353B1 EP0572353B1 (de) | 1996-06-19 |
EP0572353B2 true EP0572353B2 (de) | 1999-06-09 |
Family
ID=4216257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19930810365 Expired - Lifetime EP0572353B2 (de) | 1992-05-26 | 1993-05-18 | Verfahren zum Färben von Leder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0572353B2 (es) |
JP (1) | JPH0665869A (es) |
CH (1) | CH685251A5 (es) |
DE (1) | DE59302989D1 (es) |
ES (1) | ES2089774T3 (es) |
MX (1) | MX9303069A (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004027812A1 (de) | 2004-06-08 | 2006-01-05 | Basf Ag | Verfahren zum Reaktiv-Färben von Leder |
EP1882749A1 (en) | 2006-07-25 | 2008-01-30 | Joseph Mellini | Leather-surface repair-composition and the method for surface repair of leather surfaces |
TWI540186B (zh) * | 2015-07-16 | 2016-07-01 | 臺灣永光化學工業股份有限公司 | 黑色染料組成物及其用途 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2360634A1 (fr) * | 1976-08-03 | 1978-03-03 | Ugine Kuhlmann | Nouveaux colorants trisazoiques hydrosolubles |
ES2049014T3 (es) * | 1989-12-11 | 1994-04-01 | Ciba Geigy Ag | Procedimiento de tintura del cuero. |
DE4124437A1 (de) * | 1990-07-26 | 1992-01-30 | Ciba Geigy Ag | Polyazofarbstoffe |
-
1992
- 1992-05-26 CH CH168792A patent/CH685251A5/de not_active IP Right Cessation
-
1993
- 1993-05-18 ES ES93810365T patent/ES2089774T3/es not_active Expired - Lifetime
- 1993-05-18 EP EP19930810365 patent/EP0572353B2/de not_active Expired - Lifetime
- 1993-05-18 DE DE59302989T patent/DE59302989D1/de not_active Expired - Fee Related
- 1993-05-26 JP JP5123756A patent/JPH0665869A/ja not_active Withdrawn
- 1993-05-26 MX MX9303069A patent/MX9303069A/es not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH0665869A (ja) | 1994-03-08 |
MX9303069A (es) | 1994-06-30 |
EP0572353A1 (de) | 1993-12-01 |
DE59302989D1 (de) | 1996-07-25 |
ES2089774T3 (es) | 1996-10-01 |
EP0572353B1 (de) | 1996-06-19 |
CH685251A5 (de) | 1995-05-15 |
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