EP1904658A1 - Method for producing leather - Google Patents
Method for producing leatherInfo
- Publication number
- EP1904658A1 EP1904658A1 EP06777608A EP06777608A EP1904658A1 EP 1904658 A1 EP1904658 A1 EP 1904658A1 EP 06777608 A EP06777608 A EP 06777608A EP 06777608 A EP06777608 A EP 06777608A EP 1904658 A1 EP1904658 A1 EP 1904658A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- mixture
- weight
- leather
- salts
- 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.)
- Granted
Links
- 239000010985 leather Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 59
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 150000003839 salts Chemical class 0.000 claims abstract description 16
- 241001465754 Metazoa Species 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000009472 formulation Methods 0.000 claims description 27
- 150000007513 acids Chemical class 0.000 claims description 21
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 18
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 14
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 13
- 206010000496 acne Diseases 0.000 claims description 13
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 13
- 229960000587 glutaral Drugs 0.000 claims description 11
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 claims description 10
- 235000011037 adipic acid Nutrition 0.000 claims description 10
- 150000001299 aldehydes Chemical class 0.000 claims description 10
- 239000001361 adipic acid Substances 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 8
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 8
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 7
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 claims description 6
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 claims description 6
- 239000011976 maleic acid Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 claims description 5
- MGJURKDLIJVDEO-UHFFFAOYSA-N formaldehyde;hydrate Chemical compound O.O=C MGJURKDLIJVDEO-UHFFFAOYSA-N 0.000 claims 2
- 239000002253 acid Substances 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 14
- -1 alkali metal sulfite Chemical class 0.000 description 13
- 239000011265 semifinished product Substances 0.000 description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 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 8
- 241000283690 Bos taurus Species 0.000 description 7
- 235000019253 formic acid Nutrition 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 6
- 239000004327 boric acid Substances 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 239000013011 aqueous formulation Substances 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 239000008233 hard water Substances 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 4
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 4
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 3
- 108010019160 Pancreatin Proteins 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 3
- 238000004380 ashing Methods 0.000 description 3
- 235000015278 beef Nutrition 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 229940055695 pancreatin Drugs 0.000 description 3
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 3
- 229910052979 sodium sulfide Inorganic materials 0.000 description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- SPEUIVXLLWOEMJ-UHFFFAOYSA-N 1,1-dimethoxyethane Chemical compound COC(C)OC SPEUIVXLLWOEMJ-UHFFFAOYSA-N 0.000 description 2
- 125000003542 3-methylbutan-2-yl group Chemical group [H]C([H])([H])C([H])(*)C([H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 235000011054 acetic acid Nutrition 0.000 description 2
- 229910001508 alkali metal halide Inorganic materials 0.000 description 2
- 150000008045 alkali metal halides Chemical class 0.000 description 2
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 2
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 description 2
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000000991 leather dye Substances 0.000 description 2
- ZIYVHBGGAOATLY-UHFFFAOYSA-N methylmalonic acid Chemical compound OC(=O)C(C)C(O)=O ZIYVHBGGAOATLY-UHFFFAOYSA-N 0.000 description 2
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 2
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 150000005677 organic carbonates Chemical class 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- JXKPEJDQGNYQSM-UHFFFAOYSA-M sodium propionate Chemical compound [Na+].CCC([O-])=O JXKPEJDQGNYQSM-UHFFFAOYSA-M 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000001384 succinic acid Substances 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- NMRPBPVERJPACX-UHFFFAOYSA-N (3S)-octan-3-ol Natural products CCCCCC(O)CC NMRPBPVERJPACX-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- ODYWKGZHVSUTKO-UHFFFAOYSA-N 2-ethylhexan-1-ol;oxirane Chemical compound C1CO1.CCCCC(CC)CO ODYWKGZHVSUTKO-UHFFFAOYSA-N 0.000 description 1
- 150000000369 2-ethylhexanols Chemical class 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 1
- SKCQDFLBBMGDPT-UHFFFAOYSA-L 4-((2,4-dihydroxy-5-((2-hydroxy-3,5-dinitrophenyl)azo)-3-((4-nitrophenyl)azo)phenyl)azo)-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt Chemical compound [Na+].[Na+].OC1=C(N=NC=2C(=C(C=C(C=2)[N+]([O-])=O)[N+]([O-])=O)O)C=C(N=NC=2C3=C(O)C=C(C=C3C=C(C=2)S([O-])(=O)=O)S([O-])(=O)=O)C(O)=C1N=NC1=CC=C([N+]([O-])=O)C=C1 SKCQDFLBBMGDPT-UHFFFAOYSA-L 0.000 description 1
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- 241000282994 Cervidae Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 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
- 229920000877 Melamine resin Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000017343 Quebracho blanco Nutrition 0.000 description 1
- 241000065615 Schinopsis balansae Species 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 241001296405 Tiso Species 0.000 description 1
- 150000001241 acetals Chemical class 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 150000008063 acylals Chemical class 0.000 description 1
- 150000001279 adipic acids Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000001049 brown dye Substances 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001728 carbonyl compounds Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 150000002311 glutaric acids Chemical class 0.000 description 1
- 229940015043 glyoxal Drugs 0.000 description 1
- 150000002373 hemiacetals Chemical class 0.000 description 1
- 150000004687 hexahydrates Chemical class 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000004698 iron complex Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000011780 sodium chloride Substances 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
- 239000004324 sodium propionate Substances 0.000 description 1
- 235000010334 sodium propionate Nutrition 0.000 description 1
- 229960003212 sodium propionate Drugs 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- XYGBKMMCQDZQOZ-UHFFFAOYSA-M sodium;4-hydroxybutanoate Chemical compound [Na+].OCCCC([O-])=O XYGBKMMCQDZQOZ-UHFFFAOYSA-M 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000003444 succinic acids Chemical class 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
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
- C14C3/08—Chemical tanning by organic agents
- C14C3/16—Chemical tanning by organic agents using aliphatic aldehydes
Definitions
- the present invention relates to formulations containing
- pretanned or tanned animal skins which still require retanning, are referred to as semifinished products.
- semifinished products In the context of the present invention, retanned semifinished products and finished tanned animal skins, in which retanning is no longer required, are referred to as leather.
- the method according to the invention is based on animal skins, which may be obtained from any dead animals, in particular bovine skins, calf skins, goat skins, deer skins or pig skins.
- animal skins descaled using one or more ammonium salts, in particular using mixtures of ammonium chloride and ammonium sulfate.
- hides which have been decalcified using CO 2 or one or more organic compounds capable of splitting off CO 2 in an aqueous medium in particular using one or more organic carbonates, in particular in particular using mixtures of ethylene carbonate and propylene carbonate.
- At least one organic tanning agent in particular at least one organic tanning agent, which is selected from aldehydes, dialdehydes and compounds which can cleave formaldehyde, acetaldehyde or dialdehydes at acidic pH, in particular in aqueous medium at pH values in the range of 1 , 5 to 6.5.
- Preferred aldehydes are formaldehyde, acetaldehyde and glyoxylic acid.
- Preferred dialdehydes are glyoxal and compounds of the general formula OHC- (CH 2 ) ⁇ -CHO, in which x can be an integer in the range from 1 to 10, preferably 2 to 7 and very particularly preferably 3 or 4.
- Formula OHC- (CH 2 ) 3 -CHO corresponds to glutaric dialdehyde.
- Preferred compounds which can cleave off formaldehyde or dialdehydes at an acidic pH, in particular in an aqueous medium, at pH values in the range from 1.5 to 6.5 are, for example, dimers, trimers, polymers, hydrates, dihydrazates, acetals, Hemiacetals, acylals of formaldehyde, acetaldehyde or dialdehydes.
- Examples include:
- R 1 may each be identical or different and selected from C 1 -C 10 -alkyl, for example methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl, sec-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec-hexyl, n-heptyl, iso-heptyl, n- Octyl, n-nonyl, n-decyl, preferably C 1 -C 6 -alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-p
- Suitable compounds which can cleave dialdehydes at acidic pH are bis-oxazolidinones derived, for example, from OHC- (CH 2 ) ⁇ -CHO.
- suitable compounds which can cleave off formaldehyde or acetaldehyde at acidic pH are tetrakishydroxymethylphosphonium salts and tetrakishydroxyethylphosphonium salts, in particular tetrakishydroxymethylphosphonium chloride.
- organic tanning agent (a) from glutaric dialdehyde, for example as cyclic dihydrate
- C 3 -C 2 dicarboxylic acids such as phthalic acid, terephthalic acid, isophthalic acid, preferably olefinically unsaturated C 4 -C 2 dicarboxylic acids or, more preferably aliphatic C 2 -C 3-dicarboxylic acids such as malonic acid, methylmalonic acid, maleic acid, fumaric acid, succinic acid, citraconic acid, Metaconic acid, glutaric acid, itaconic acid, adipic acid, sebacic acid, pimelic acid, in particular succinic acid, glutaric acid and adipic acid.
- R 2 is the same or different and are independently selected from C r C 4 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and tert-butyl and most preferably methyl or ethyl, and ⁇ -hydroxy-C 2 -C 4 -alkylene such as 3-hydroxypropyl, 4-hydroxybutyl and especially 2-hydroxyethyl.
- C r C 4 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and tert-butyl and most preferably methyl or ethyl
- ⁇ -hydroxy-C 2 -C 4 -alkylene such as 3-hydroxypropyl, 4-hydroxybutyl and especially 2-hydroxyethyl.
- the process according to the invention is preferably carried out in an aqueous liquor.
- suitable apparatus are drums, preferably rotatable drums and, in particular, rotatable drums with flow-breaking internals.
- organic tanning agent (a) and mixture (b) are used in a weight ratio of 100: 1 to 1: 1, preferably 5: 1 to 1.5: 1.
- animal skin with 0.1 to 10% by weight of tanning agent (a), based on the shaved weight is preferably treated with 1.5 to 5% by weight.
- the process according to the invention is carried out at a temperature in the range from 15 to 50.degree. C., preferably from 20 to 35.degree.
- a pH in the range from 2.0 to 6.5, preferably from 2.8 to 5.0 is used to carry out the process according to the invention.
- the process according to the invention can be carried out over a period of 5 minutes to 24 hours, preferably 60 minutes to 6 hours.
- the process according to the invention can be carried out using soft water, for example water at 0 to 7 ° dH (German hardness).
- the process according to the invention is carried out using medium-hard water, for example water at 7 to 19 ° dH, preferably with hard water of at least 20 to 200 ° dH.
- one or more leather dyes are added while the process according to the invention is being carried out. In another embodiment, the process according to the invention is carried out without the addition of leather dyes.
- one or more further chromium-free tanning agents are added, for example mineral tanning agents such as aluminum compounds, in particular aluminum sulfate or alum, zirconium compounds such as Zr (SO 4 J 2 or ZrSO 4 (OH 2 or titanium compounds such as Ti (SO 4 J 2 or TiSO 4 (OH) 2 , resin tanning agents, vegetable tanning or enzymatic tanning agents or synthetic tanning agents such as condensation products of carbonyl compounds such as formaldehyde with one or more aromatic sulfonic acids Adding dispersants, in particular one or more nonionic surfactants, for example polyethoxylated C 6 -C 20 aliphatic alcohols, branched or unbranched.
- mineral tanning agents such as aluminum compounds, in particular aluminum sulfate or alum
- zirconium compounds such as Zr (SO 4 J 2 or ZrSO 4 (OH 2 or titanium compounds such as Ti (SO 4 J 2 or TiSO 4 (OH) 2
- resin tanning agents such as vegetable tannin
- organic tanning agent (a) and mixture (b) can be separated or preferably metered together.
- the process according to the invention is carried out as a retanning, for example at a pH in the range from 3 to 6 and a temperature in the range from 20 to 65 ° C.
- the process according to the invention is carried out by treating with pimples
- alkali metal halides in particular sodium chloride, for example 1 to 10% by weight, based on pelt, preferably 4 to 7% by weight.
- alkali metal halide completely or proportionally with ionic polymers.
- the residence time of the pimples in the latter variant of the present invention is for example 10 minutes to 24 hours, preferably 15 minutes to 2 hours and more preferably 15 to 45 minutes.
- Pimpling in the latter variant of the present invention proceeds under otherwise tanning conditions, the temperature is 10 to 35 ° C and the pressure 1 to 10 bar, is particularly useful normal pressure.
- organic tanning agent (a) and mixture (b) are as defined above.
- organic tanning agents (a) are selected from aldehydes, dialdehydes and compounds which can cleave formaldehyde, acetaldehyde or dialdehydes at acidic pH in the presence of water. Very particular preference is given to using tannin (a) glutaric dialdehyde.
- mixture (b) two at least C 3 -C 2 comprising dicarboxylic acids selected from adipic acid, glutaric acid, maleic acid, and succinic acid, or salts thereof.
- Formulations according to the invention may contain, for example, in the range from 30 to 80% by weight of water.
- Formulations according to the invention may preferably have a pH in the range from 2.5 to 6.5, more preferably in the range from 3.0 to 5.0.
- a mixture (b) may, for example, contain a total of from 30 to 99 wt .-% C 3 -C 2 dicarboxylic acid (b1), further a total of from 1 to 70 wt .-% acidic compound (b2) , where in% by weight are based on mixture (b).
- Another object of the present invention is the use of formulations according to the invention for the production of leather, for example for pretanning, tanning, retanning or in pimples.
- a further subject of the present invention is a process for the production of leather, for example a process. for pretanning, tanning, retanning or pimpling, using formulation according to the invention.
- the pre-tanning and the tanning are particularly preferred.
- Another object of the present invention are semi-finished products and leather, prepared by the novel process.
- Leathers according to the invention are also distinguished by good whiteness, good body and softness and a particularly low tendency to yellowing when using hard water and are particularly well suited for the production of clothing such as coats, jackets, belts, shoes, especially lining and upper leather , Gloves, furniture and car parts.
- semi-finished products produced by the process according to the invention show good to very good hemmability and a good to very good wilting behavior and can be processed very well to leather.
- a further subject of the present invention is a process for the preparation of formulations according to the invention, also referred to below as preparation process according to the invention.
- To carry out the inventive production process may, for example, act in such a way that first a mixture (b) selected from at least one C 3 -C 2 dicarboxylic acid (b1) and at least one further acidic compound (b2) from C 3 mono- or C 3 -C 2 dicarboxylic acids, prepared in water, optionally partially or completely neutralized with base such as basic alkali metal salt, for example potassium or sodium salts, such as carbonates or bicarbonates, in particular sodium hydroxide, or neutralized with ammonia or organic schem amine, and then admixing at least one organic tanning agent (a).
- base such as basic alkali metal salt, for example potassium or sodium salts, such as carbonates or bicarbonates, in particular sodium hydroxide, or neutralized with ammonia or organic schem amine
- Aqueous formulation F-1 according to the invention was obtained.
- Aqueous formulation F-1 according to the invention had a pH of from 3 to 4.
- Comparative Formulation V-F-3 a 50% by weight aqueous solution of glutaric dialdehyde was used, pH 3 to 4.
- LVE Löhlein-Volhard units, determinable, for example, by methods based on the degradation of casein by an enzyme to be tested and the subsequent titration of the liberated carboxyl groups with 0.1 N NaOH.
- One LVE corresponds to 0.00575 ml of 0.1 N NaOH.
- bovine hides (southern German ware) were softened and cremated with 3% by weight of lime, 1.5% by weight of sodium sulfide and 0.7% by weight of sodium hydrogen sulfide at a liquor length of 150% over 16 hours. It was then washed with water, defiled and split to a gap thickness of 2.5 mm. Columns were obtained, which were cut in half for each beef.
- the reaction was continued for a further 45 minutes and an additional 100% by weight of water, furthermore 0.5% by weight of commercially available pancreatin with 1000 LVE / g and 0.1% by weight of a surfactant (ethoxylated with 6 equivalents of ethylene oxide 2-ethylhexanol).
- a surfactant ethoxylated with 6 equivalents of ethylene oxide 2-ethylhexanol.
- bovine hides (southern German ware) were softened and cremated with 3% by weight of lime, 1.5% by weight of sodium sulfide and 0.7% by weight of sodium hydrogen sulfide at a liquor length of 150% over 16 hours. It was then washed with water, defiled and split to a gap thickness of 2.5 mm. Columns were obtained, which were cut in half for each beef.
- % (NH 4 J 2 SO 4 and 0.1% by weight Na 2 SO 3, followed by a further 45 minutes and addition of a further 100% by weight of water, furthermore 0.5% by weight of commercially available pancreatin 1000 LVE / g and 0.1% by weight of a surfactant (ethoxylated 2-ethylhexanol with 6 equivalents of ethylene oxide) was allowed to pass for a further 30 minutes at 32 ° C. The liquor was then drained and the descaled BI-2 bleach was washed twice each with 150 wt .-% water.
- a surfactant ethoxylated 2-ethylhexanol with 6 equivalents of ethylene oxide
- bovine hides (southern German ware) were softened and cremated with 3% by weight of lime, 1.5% by weight of sodium sulfide and 0.7% by weight of sodium hydrogen sulfide at a liquor length of 150% over 16 hours. It was then washed with water, defiled and split to a gap thickness of 2.5 mm. Columns were obtained, which were cut in half for each beef.
- the pimples PF-1 to PF-4 were prepared by mixing the substances according to Table 1 and filling with water.
- the decalcified pelts from BI-1 to BI-3 were each halved and treated in separate barrels over a period of 90 minutes with 150% by weight of one of the pickling liquors PF-1 to PF-4 (see Table 2). , The pimples PB-1 to PB-12 were obtained. Each PB-1 to PB-12 was cut into three equal pieces of 1.5 kg pelt weight each.
- the mixture was refluxed for a further 90 minutes and then blunted to a pH of 4 with a mixture (weight ratio 1: 2) of sodium formate and naphthalenesulfonic acid-formaldehyde condensation product, prepared according to US 5,186,846, example "Dispersant 1"
- the semi-finished product obtained was washed twice with water, wiped off and folded to a thickness of 1.8 mm, evaluating the wilting behavior, the hemmability and the degree of whiteness.
- Point 4.1 The specimens had the dimensions 3 cm ⁇ 1 cm; the thickness was not determined.
- Point 6 accounted for point 7: the drying in the vacuum desiccator was dispensed with.
- Item 8 When the pointer dropped, the shrinkage temperature was measured.
- the leathers thus obtained were washed twice with 100 wt .-% water, stored moist overnight and dried after Abwalken on tenter at 50 ° C.
- the leathers L-1 to L-24 according to the invention and comparative leathers V-L-25 to V-L-36 were obtained. After the tunnel, the leathers were judged as below.
- the rating was based on a grading system from 1 (very good) to 5 (poor).
- the evaluation of whiteness and levelness was done visually.
- the Abwelk was judged at an identical Abwelk réelle of 100 bar on the quality of drainage and the fiber structure on the meat side (isolated fibers with low fiber bonds represent the ideal state).
- the foldability was the levelness of the folding result over the surface, the shavings (isolated fibers, loose structure), the morphology of the meat side (due to the temperature development it may unintentionally come to irreversible hardening) and the fate of (disturbing) shavings on the meat side judged.
- the assessment of fullness, grain firmness and softness was made in each case in direct comparison by appropriately trained leather technicians.
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- 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)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102005032585A DE102005032585A1 (en) | 2005-07-11 | 2005-07-11 | Process for the production of leather |
PCT/EP2006/063956 WO2007006718A1 (en) | 2005-07-11 | 2006-07-06 | Method for producing leather |
Publications (2)
Publication Number | Publication Date |
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EP1904658A1 true EP1904658A1 (en) | 2008-04-02 |
EP1904658B1 EP1904658B1 (en) | 2010-04-21 |
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EP06777608A Active EP1904658B1 (en) | 2005-07-11 | 2006-07-06 | Method for producing leather |
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US (2) | US20090172890A1 (en) |
EP (1) | EP1904658B1 (en) |
CN (1) | CN101223289B (en) |
AR (1) | AR057429A1 (en) |
AT (1) | ATE465277T1 (en) |
BR (1) | BRPI0612827B1 (en) |
DE (2) | DE102005032585A1 (en) |
ES (1) | ES2343433T3 (en) |
WO (1) | WO2007006718A1 (en) |
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EP2102283A1 (en) | 2006-12-15 | 2009-09-23 | Basf Se | Polymer dispersions containing highly branched polycarbonates |
KR101547715B1 (en) * | 2007-11-20 | 2015-08-26 | 바스프 에스이 | Use of thermoplastic molding materials for gid/wit |
JP5683793B2 (en) * | 2009-06-03 | 2015-03-11 | ウィンテックポリマー株式会社 | Molded parts for electric car parts |
US20110237693A1 (en) * | 2010-03-23 | 2011-09-29 | Basf Se | Blends made of polyarylene ethers and of polyarylene sulfides |
CN101812553B (en) * | 2010-04-23 | 2013-01-09 | 海宁森德皮革有限公司 | Production method for non-chrome-tanned ecological automobile seat cushion leather |
DE102013014641B4 (en) | 2013-09-04 | 2018-07-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Wood product or natural fiber composite product and use of a formaldehyde-free aminoplast resin for their preparation |
EP2853605A1 (en) * | 2013-09-30 | 2015-04-01 | Rhodia Poliamida E Especialidades Ltda | Tanning process for obtaining leather |
EP2853604A1 (en) * | 2013-09-30 | 2015-04-01 | Rhodia Poliamida E Especialidades Ltda | Tanning process |
CN104561397B (en) * | 2013-10-18 | 2017-12-19 | 罗门哈斯公司 | The tanning again of chromium-free leather |
CN104032048B (en) * | 2014-05-22 | 2015-06-24 | 海宁森德皮革有限公司 | Production process of flame retardant trim cow leather |
US10280474B2 (en) * | 2015-07-13 | 2019-05-07 | Council Of Scientific & Industrial Research | Dispersing agent composition for tanning of hides/skins and process for the preparation thereof |
ITUB20152180A1 (en) * | 2015-07-14 | 2017-01-14 | Db Patents Ltd | IMPROVED METHOD TO SKIN ANIMAL SKIN. |
DK3515478T3 (en) | 2016-09-21 | 2024-05-21 | Nextcure Inc | Antibodies to SIGLEC-15 and methods of use thereof |
US10053533B1 (en) | 2017-04-13 | 2018-08-21 | Presidium Usa, Inc. | Oligomeric polyol compositions |
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DE2423118C3 (en) * | 1974-05-13 | 1979-04-26 | Schill & Seilacher Gmbh & Co, 7030 Boeblingen | Process for the production of leather |
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- 2005-07-11 DE DE102005032585A patent/DE102005032585A1/en not_active Withdrawn
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2006
- 2006-07-03 AR ARP060102855A patent/AR057429A1/en active IP Right Grant
- 2006-07-06 EP EP06777608A patent/EP1904658B1/en active Active
- 2006-07-06 ES ES06777608T patent/ES2343433T3/en active Active
- 2006-07-06 US US11/995,511 patent/US20090172890A1/en not_active Abandoned
- 2006-07-06 CN CN2006800254586A patent/CN101223289B/en active Active
- 2006-07-06 AT AT06777608T patent/ATE465277T1/en active
- 2006-07-06 BR BRPI0612827A patent/BRPI0612827B1/en active IP Right Grant
- 2006-07-06 DE DE502006006803T patent/DE502006006803D1/en active Active
- 2006-07-06 WO PCT/EP2006/063956 patent/WO2007006718A1/en active Application Filing
- 2006-07-06 US US11/995,503 patent/US20080207812A1/en not_active Abandoned
Non-Patent Citations (1)
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ES2343433T3 (en) | 2010-07-30 |
EP1904658B1 (en) | 2010-04-21 |
WO2007006718A1 (en) | 2007-01-18 |
US20090172890A1 (en) | 2009-07-09 |
CN101223289A (en) | 2008-07-16 |
DE102005032585A1 (en) | 2007-01-25 |
CN101223289B (en) | 2012-08-22 |
US20080207812A1 (en) | 2008-08-28 |
DE502006006803D1 (en) | 2010-06-02 |
AR057429A1 (en) | 2007-12-05 |
ATE465277T1 (en) | 2010-05-15 |
BRPI0612827A2 (en) | 2012-10-09 |
BRPI0612827B1 (en) | 2016-12-13 |
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