EP1511865A1 - Verfahren zur entfernung von hornsubstanzen aus häuten, pelzen oder pelzfellen - Google Patents
Verfahren zur entfernung von hornsubstanzen aus häuten, pelzen oder pelzfellenInfo
- Publication number
- EP1511865A1 EP1511865A1 EP03752667A EP03752667A EP1511865A1 EP 1511865 A1 EP1511865 A1 EP 1511865A1 EP 03752667 A EP03752667 A EP 03752667A EP 03752667 A EP03752667 A EP 03752667A EP 1511865 A1 EP1511865 A1 EP 1511865A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- skins
- furs
- alkyl
- hydrogen
- 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
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000000126 substance Substances 0.000 title claims abstract description 17
- 241001465754 Metazoa Species 0.000 claims abstract description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 22
- -1 alkaline earth metal salts Chemical class 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 15
- 239000001257 hydrogen Substances 0.000 claims abstract description 15
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 14
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 125000004434 sulfur atom Chemical group 0.000 claims abstract description 8
- 150000004714 phosphonium salts Chemical class 0.000 claims abstract description 6
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 4
- 239000010985 leather Substances 0.000 claims description 21
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 9
- 239000004571 lime Substances 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 150000002898 organic sulfur compounds Chemical class 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 108090000623 proteins and genes Proteins 0.000 claims description 4
- 102000004169 proteins and genes Human genes 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 abstract description 2
- 125000004400 (C1-C12) alkyl group Chemical group 0.000 abstract 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 abstract 2
- 159000000011 group IA salts Chemical class 0.000 abstract 1
- 210000003491 skin Anatomy 0.000 description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 12
- 210000002615 epidermis Anatomy 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 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 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 235000019253 formic acid Nutrition 0.000 description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 241000283690 Bos taurus Species 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 5
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 5
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 5
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 5
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001339 alkali metal compounds Chemical class 0.000 description 4
- 150000001340 alkali metals Chemical class 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 235000011116 calcium hydroxide Nutrition 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 238000009472 formulation Methods 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
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 4
- GYXHHICIFZSKKZ-UHFFFAOYSA-N 2-sulfanylacetamide Chemical compound NC(=O)CS GYXHHICIFZSKKZ-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 206010000496 acne Diseases 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N anhydrous guanidine Natural products NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000035617 depilation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 231100000241 scar Toxicity 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 150000003573 thiols Chemical class 0.000 description 3
- WARHEJSPEGFSHO-UHFFFAOYSA-N 1,4-bis(sulfanyl)butane-1,1-diol Chemical compound OC(O)(S)CCCS WARHEJSPEGFSHO-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
- 241000700198 Cavia Species 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 2
- 108010035532 Collagen Proteins 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 206010020649 Hyperkeratosis Diseases 0.000 description 2
- 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 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000004280 Sodium formate Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- HAMNKKUPIHEESI-UHFFFAOYSA-N aminoguanidine Chemical compound NNC(N)=N HAMNKKUPIHEESI-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 244000309466 calf Species 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 229920001436 collagen Polymers 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 2
- VHJLVAABSRFDPM-QWWZWVQMSA-N dithiothreitol Chemical compound SC[C@@H](O)[C@H](O)CS VHJLVAABSRFDPM-QWWZWVQMSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 0.000 description 2
- 239000000463 material Substances 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
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000037387 scars Effects 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
- 230000035943 smell Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 235000019254 sodium formate Nutrition 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- WQCJLTVZOMTCJF-UHFFFAOYSA-N 1,2-bis(sulfanyl)butane-1,1-diol Chemical compound CCC(S)C(O)(O)S WQCJLTVZOMTCJF-UHFFFAOYSA-N 0.000 description 1
- VHJLVAABSRFDPM-UHFFFAOYSA-N 1,4-dithiothreitol Chemical compound SCC(O)C(O)CS VHJLVAABSRFDPM-UHFFFAOYSA-N 0.000 description 1
- ZQXIMYREBUZLPM-UHFFFAOYSA-N 1-aminoethanethiol Chemical compound CC(N)S ZQXIMYREBUZLPM-UHFFFAOYSA-N 0.000 description 1
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- PBVAJRFEEOIAGW-UHFFFAOYSA-N 3-[bis(2-carboxyethyl)phosphanyl]propanoic acid;hydrochloride Chemical compound Cl.OC(=O)CCP(CCC(O)=O)CCC(O)=O PBVAJRFEEOIAGW-UHFFFAOYSA-N 0.000 description 1
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000282979 Alces alces Species 0.000 description 1
- 241000271566 Aves Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- 241000282988 Capreolus Species 0.000 description 1
- 241000282994 Cervidae Species 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 241000270322 Lepidosauria Species 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 241000283903 Ovis aries Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 241000270295 Serpentes Species 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 241000271567 Struthioniformes Species 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 101000654530 Tupaia virus (isolate Tupaia/Thailand/-/1986) Small hydrophobic protein Proteins 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 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
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
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- 201000011510 cancer Diseases 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- VXIVSQZSERGHQP-UHFFFAOYSA-N chloroacetamide Chemical compound NC(=O)CCl VXIVSQZSERGHQP-UHFFFAOYSA-N 0.000 description 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 1
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- 210000000078 claw Anatomy 0.000 description 1
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- KCIDZIIHRGYJAE-YGFYJFDDSA-L dipotassium;[(2r,3r,4s,5r,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] phosphate Chemical class [K+].[K+].OC[C@H]1O[C@H](OP([O-])([O-])=O)[C@H](O)[C@@H](O)[C@H]1O KCIDZIIHRGYJAE-YGFYJFDDSA-L 0.000 description 1
- HFCSXCKLARAMIQ-UHFFFAOYSA-L disodium;sulfate;hydrate Chemical compound O.[Na+].[Na+].[O-]S([O-])(=O)=O HFCSXCKLARAMIQ-UHFFFAOYSA-L 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 210000003743 erythrocyte Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000011132 hemopoiesis Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000302 ischemic effect Effects 0.000 description 1
- 239000000991 leather dye Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- PJUIMOJAAPLTRJ-UHFFFAOYSA-N monothioglycerol Chemical compound OCC(O)CS PJUIMOJAAPLTRJ-UHFFFAOYSA-N 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000037368 penetrate the skin Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003003 phosphines Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 208000037244 polycythemia vera Diseases 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical class [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000012460 protein solution Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 229940035024 thioglycerol Drugs 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000010626 work up procedure Methods 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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
Definitions
- the present invention relates to a process for removing horny substances from hides, furs or fur skins of dead animals, characterized in that the hides, furs or fur skins are in an aqueous liquor with one or more compounds of the general formula I.
- R 1 is selected from hydrogen or -CC -alkyl, unsubstituted or substituted with one or more SH or OH groups;
- X 1 to X 4 are the same or different and selected from hydrogen, C 1 -C 4 alkyl, OH, SH or N-HR 2 ,
- At least one radical X 1 to X 4 is SH
- NaS and NaSH common depilatory reagents that are inexpensive to produce
- Both salts can usually be used in heavily contaminated form, "technical Na S” often has a Na 2 S content not exceeding 65% by weight, and “technical NaHS” usually contains 70-72% by weight NaHS.
- Both Na 2 S and NaHS have disadvantages in practical use. For safety reasons, Na S and NaHS can only be used in a strongly alkaline environment because they develop toxic and foul-smelling hydrogen sulfide during acidification.
- No. 1,973,130 describes the use of numerous organic sulfur compounds, in particular in the presence of lime (column 1, line 40) for depilation from, for example, calf skins.
- lime column 1, line 40
- ethyl mercaptan is a malodorous reagent
- waste water containing ethyl mercaptan is difficult to process, which is contrary to use in the water workshop.
- FR 1,126,252 describes the depilation of animal skins by the action of water-soluble thiols, in particular thioglycolamide (example 1) or thioglycerol (example 2) in the presence of ammonium sulfate at a pH of 7-8 on animal skins.
- DE 21 31 630 shows that agents consisting of at least 0.25% by weight of dimercaptobutanediol and about 0.01 to 40% by weight of a water-soluble guanidine compound and a pH of less than 12 can be applied to guinea pigs Depilate them or on the human cornea to remove calluses without causing skin irritation in guinea pigs or even erythremia (malignant growths in the red blood cell formation system). The epidermis is retained in the treatment described in DE 21 31 630.
- EP-A 0 095 916 discloses the use of formulations containing aminoethanethiol and 1,4-dimercaptobutanediol and an amino guanidine or diguanide compound in order to eliminate unwanted human body and facial hair.
- page 2 line 1 it is taught that small thiol molecules are preferred to achieve quick hair removal because they penetrate the skin faster. The epidermis remains intact during the treatment described in EP-A 0 095 916.
- EP-A 0 096 521 discloses the use of formulations containing, for example, 1-dimercaptobutanediol and an aminoguanidine or diguanide compound in order to eliminate unwanted human body and facial hair. The epidermis is retained in the treatment described in EP-A 0 096 521.
- collagen can be modified by opening SS bridges in the collagen by reaction with dithioerytrol and subsequent chlorination with chloroacetamide or chloroacetic acid, see. for example E. Heidemann, "Funda- mentals of Leather Manufacturing ", E. Roether KG-Druckerei und Verlag, Darmstadt 1993, page 253.
- You can also preserve protein solutions by adding dithioerythrol or dithiothreitol. The preservation is based on a kind of protection against oxidation, because dithioerythrol is usually used instead of the protein SH -Groups
- horny substances are understood to be calluses, feathers, parts of nails and claws, and in particular hair of animals.
- the hides and epidermis can still contain remains of meat from the dead animals concerned. It is essential to the invention that they contain horny substances.
- the amount of horny substance, based on the total weight of the skin or fur or fur, is not critical.
- the method according to the invention is suitable both for removing large amounts of horny substance and for removing small hair residues.
- dead animals are understood not only to mean animals slaughtered, hunted in a hunted manner or consciously killed in some other way by humans, but also those animals which are the result of accidents, for example traffic accidents, or fighting with other species or other animals or by natural causes how old age or illness have died.
- the hides, furs or fur skins of the animals are usually skins, furs or fur skins of cattle, calves, pigs, goats, sheep, lambs, elk, game such as deer or roe deer, and also birds such as, for example Ostriches, fish or reptiles such as snakes.
- the skins are treated with one or more compounds of the general formula I.
- R 1 selected from
- C ⁇ -C ⁇ 2 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl, sec-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec-hexyl or n-decyl, particularly preferably C 1 -C 4 -alkyl such as methyl, ethyl, n-propyl , iso-propyl, n-butyl, iso-butyl, sec-butyl and tert-butyl;
- C ⁇ -C ⁇ 2 alkyl substituted with one or more hydroxy or thiol groups such as hydroxymethyl, 2-hydroxyethyl, 1,2-di-hydroxyethyl, 3-hydroxy-n-propyl, 2-hydroxy-iso-propyl, ⁇ -Hy - droxy-n-butyl, ⁇ -hydroxy-n-decyl, HS-CH 2 -; HS- (CH 2 ) 2 - or HS- (CH 2 ) 3 -,
- X 1 to X 4 are the same or different and selected from hydrogen
- C ⁇ -C-alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and tert-butyl OH, SH or N-HR 1 , in particular OH or SH,
- R 2 is hydrogen or
- R 1 contains at least one sulfur atom
- at least one radical X 1 to X 4 denotes an SH group
- at least two radicals X 1 to X 4 denotes an SH Group
- At least one is preferred, and at least two X 1 to X 4 hydroxyl groups are particularly preferred.
- alkali and alkaline earth metal salts in particular the mono- and disodium salts, mono- and dipotassium salts as well as potassium sodium salts of the compounds of the general formula I are also to be mentioned, as are the corresponding calcium and magnesium salts.
- the ammonium salts or primary, secondary, tertiary and in particular quaternary mono- and diammonium salts and phosphonium salts should also be mentioned. Mixtures of compounds of the general formula I and their corresponding alkali metal or alkaline earth metal salts or ammonium or phosphonium salts can of course also be used.
- Preferred mono- and diammonium salts have as cations those of the formula N (R 3 ) (R 4 ) (R 5 ) (R 6 ) + , where R 3 to R 6 are each the same or different and selected from hydrogen, C ⁇ -C ⁇ -Alkyl, phenyl or CH 2 -CH-OH. Examples include tetramethylammonium, tetraethylammonium, methyldiethanolammonium and n-butyldiethanolammonium.
- Preferred mono- and diphosphonium salts have cations of the formula P (R 3 ) (R 4 ) (R 5 ) (R 6 ) + , where R 3 to R 6 are as defined above.
- Ia Ia 'I one or its corresponding alkali or alkaline earth metal salts.
- I a and I a are also called dithiotreitol, I b is also called dithioerythrol.
- the use of race ischemic dithiothreitol is very particularly preferred.
- I a, I a ⁇ and I b are practically odorless, easily metered and readily water-soluble compounds.
- the compounds I a or I a l and I b are known and commercially available, for example, from Aldrich or AGROS Chemicals.
- the synthesis of further compounds of general formula I succeeds as in US 4,472,569 or J. Chem. Soc. 1949, 248 or by analogous implementations.
- an amount of 0.1 to 5% by weight of compound I, based on the skin or salt weight of the hides, furs or fur skins, is sufficient. 0.1 to 2.5% by weight are preferred, 0.1 to 1.5% by weight are particularly preferred.
- the treatment of the hides, furs or fur skins according to the invention is preferably carried out with one or more compounds of the general formula I in the liming or the Schwöde, both under hair-destroying and under hair-preserving conditions. It is possible to add a concentration of less than 1% by weight of Na 2 S or NaHS instead of the usual concentration of about 4% by weight NaS or NaHS in the liming or Schwöde the same great effect with regard to the removal of horny substances.
- one or more compounds of the general formula I are used in the liming together with thiols known from tannery, such as mercaptoethanol or thioglycolic acid. Less than 0.5% by weight of mercaptoethanol or thioglycolic acid is preferably used.
- the skins are treated in an aqueous solution
- the liquor ratio is from 1:10 to 10: 1, preferably 1: 2 to 4: 1, particularly preferably up to 3: 1, based on the skin weight or salt weight of the skins.
- the process according to the invention is carried out at pH values from 7 to 14, preferably from 8 to 13 and particularly preferably from 9 to 12.5.
- lime also hydrated lime
- lime is not used.
- one or more inorganic basic alkali metal compounds are added, for example one or more hydroxides or carbonates of alkali metals, preferably of sodium or potassium and very particularly preferably of sodium.
- Other suitable inorganic basic alkali metal compounds are alkali metal silicates.
- Be brisk for example up to 20 vol .-% ethanol or isopropanol.
- the process can be carried out in the usual tannery vessels in which ashing is usually carried out.
- the method according to the invention is preferably carried out in rotatable drums with internals.
- the speed is usually 0.5 to 100 / min, preferably 1.5 to 10 / min and particularly preferably up to 4.5 / min.
- the pressure and temperature conditions for carrying out the method according to the invention are generally not critical. Carrying out at atmospheric pressure has proven to be suitable; a pressure increased up to 10 bar is also conceivable. Suitable temperatures are 10 to 45 ° C, preferably 15 to 35 ° C and particularly preferably 25 to 30 ° C.
- the compound or compounds of the general formula I can be metered in at the start of the liming process, but the skins can also first be soaked first under basic conditions and only after a while one or more compounds of the general formula I can be metered in.
- the metering can be carried out in one step, ie the total amount of the compound or compounds I used is metered in one step; but I can also be metered in portions or continuously.
- the process according to the invention can be carried out in a period of 10 minutes to 48 hours, preferably 1 to 36 hours and particularly preferably 3 to 15 hours.
- tanning agents customary in tanning for example phosphines, such as, for example, to carry out the process according to the invention.
- the method according to the invention makes it possible to produce excellently hairless bare skin. It is surprising that the epidermis is completely or at least largely detached even after a short treatment period.
- the present invention therefore relates to nakednesses produced by the method according to the invention.
- the pelts produced according to the invention are extremely suitable for the production of leather.
- the pelts produced according to the invention can be processed further into leather with an improved area yield and less swelling damage, compared with leather which is produced from pelts produced with With the help of, for example, Na S, NaHS, thioglycolic acid or aminethanol have been depilated.
- Another object of the present invention are leather, made from the pelts of the invention. They are characterized by generally advantageous application properties.
- wastewater produced in the process according to the invention in particular wastewater from liming processes in which work is carried out without Na S, NaSH or mercaptans such as aminoethanol or thioglycolic acid, can be worked up particularly well.
- Furs or fur skins of dead animals are separated from the fleece obtained from the fleet, for example by simply removing the fleece or by lowering the fleet.
- the liquor contains, among other things, unreacted (reacted) compound of the general formula I, from a few ppm up to 4% by weight, in addition basic alkali metal compound or basic amines or lime and in particular residues of the horn material separated from the nakedness. lien and the epidermis.
- the separated liquor, which contains the unused (reacted) compound of the general formula I, furthermore base and residues of the horn materials separated from the bare and the epidermis, is also referred to below as the residual liquor.
- the present invention therefore furthermore relates to residual liquors which contain neither Na 2 S nor NaHS and, as organic sulfur compounds, only contain those of the general formula I, and their reaction and secondary products from the removal of horny substances from skins, furs or fur skins of dead animals, as well as organic sulfur compounds derived from the skins, furs or fur skins of the dead animals.
- residual liquors which contain neither Na 2 S nor NaSH are to be understood as those residual liquors which contain up to 100 ppm, preferably up to 75 ppm, of sulfide.
- the sulfide is determined as hydrogen sulfide after acidification with concentrated hydrochloric acid, heating to 90 ° C and stripping.
- the residual liquors according to the invention are obtainable by the process according to the invention. They are almost odorless and particularly easy to work up compared to the residual tannery liquors known from the prior art.
- Hydrolysis and oxidation products of compounds of general formula I are to be mentioned as reaction and secondary products of compounds of general formula I, which result from the removal of horny substances from the hides, furs and fur skins of dead animals.
- Another object of the present invention is therefore a method for processing residual liquors.
- the method according to the invention comprises several steps.
- the pelts according to the invention are separated from the lime.
- This step is naturally only necessary if lime has been used in the treatment of the animal skins, otherwise it is not necessary.
- the separation is carried out by settling, flotation, decanting, filtering or centrifuging, preference being given to removing the lime by decanting, settling or filtering in the case of large amounts of residual liquors according to the invention.
- the first step described above makes lime-free residual liquors accessible.
- the lime-free residual liquors are then neutralized with an acid until a pH of 2 to 8, preferably 3 to 7, particularly preferably 4 to 5 is reached.
- Acidification 10 can be carried out without special measures relating to the development of hydrogen sulfide.
- the skin of a South German cattle was first pre-soaked at 28 ° C with 30,200% by weight of water and 0.2% by weight of an Eusapon® W in a barrel at 1-3 rpm for 120 minutes. The liquor was drained and then soaked for 19 hours with 100% by weight of water, 0.2% by weight of Eusapon® W and 0.5% by weight of soda in automatic mode (5 '/ h). The fleet was then drained. 35
- the softened hides of southern German cattle were fleshed green (thickness about 4 mm) and the croupons of the hides were cut into pieces of skin weighing 2.5 kg each.
- Examples 1 to 6 100 parts by weight of green weight were first mixed with 60% by weight of water in a rotatable 10-liter barrel with flow-breaking internal fittings and then, as can be seen from Table 1, products were added.
- the keg was operated for a further 45 minutes at 5 revolutions / minute. A further 40% by weight of water was then metered in. After 10 hours at 23 to 27 ° C. with periodic operation at 3 revolutions / minute for 5 minutes per hour in each case, the tests were ended by draining off the liquor and the blocks twice for 15 minutes at 150% by weight. Water.
- the treated according to the inventive examples were pelts hinsieht- treated according to Comparative Example VI skins' of the swelling lent only slightly superior, but distinguished by a smoother and flatter grain, in particular the pelts of Examples 1.4 to 1.6 according to the invention.
- the epidermis and hair with hair roots in the nakedness 1.1 to 1.3 were largely and completely destroyed in the nakedness 1.4 to 1.6.
- the decalcification or neutralization was carried out with a mixture consisting of two parts by weight of formic acid and three parts by weight of adipic acid.
- the liquor was brought to pH 7.5-8.5 in two dosing steps.
- the penetration of the acid mixture over the skin cross-section was determined with phenolphthalein as In indicator checked. The time required for this was noted.
- a 2.5% by weight glutardialdehyde formulation commercially available as Relugan® GT 24 from BASF Aktiengesellschaft, was added to each of the pimple baths described above. After 90 minutes, 3% by weight of a synthetic tanning agent, commercially available as Basyntan® SW fl. From BASF Aktiengesellschaft, was added. After 30 minutes, 1% by weight of a tanning agent based on naphthalenesulfonic acid, commercially available as Tamol® M from BASF Aktiengesellschaft, was added and left to stand overnight. The mixture was then neutralized with sodium formate and sodium bicarbonate and the liquor was drained off.
- the leather thus obtained was washed with water and dried and stretched and folded by conventional methods.
- the fold thickness of the leather was 2.0-2.2 mm.
- the data in% by weight relate to the dried leather, unless stated otherwise.
- the "wet white” cowhides obtained in this way were immersed in 100% by weight of water and adjusted to a pH of ⁇ 3.0 by adding sodium formate and sodium hydrogen carbonate.
- the leather was drummed at 30 ° C for 60 minutes in a barrel and then washed with 200% by weight of water.
- Relugan® GTP 4% by weight of Relugan® GTP were added and drummed for 60 minutes.
- 2 wt .-% Tamol® NA commercially available from BASF Aktiengesellschaft
- licker AI were commercially available from BASF Aktiengesellschaft, and 1 wt .-% - Lipoderm® Liquer LA, commercially available from BASF Aktiengesellschaft, added and drummed for 60 minutes.
- the mixture was then greased with a mixture of 8% by weight of fatliquor (Lipoderm® Licker AI) and 4% by weight of Lipoderm® Licker LA 1.
- the liquor was then adjusted to a pH of 3.5 to 3.8 using formic acid, the leather briefly rinsed cold and further processed as usual.
- Crust leather 2.1 was obtained. until 2.6. with very good coloring and good firm grain with at the same time very good fullness and excellent, light softness with an elegant handle.
- Crust leathers 2.4 to 2.6 had a smoother and finer grain than V2. Further application properties are shown in Table 2.
- the hair decomposition and the scar strength were assessed optically and haptically by 2 propands (1: very good, 6: unsatisfactory).
- the skin of a South German cattle was first pre-soaked at 28 ° C with 150% by weight water and 0.2% by weight Eusapon® W in a barrel at 1-3 rpm for 120 minutes. The liquor was drained and then with 150 wt .-% water, 0.2 wt .-% Eusapon® W and 0.5 wt .-% Soak soda for 19 hours, stirring occasionally. The fleet was then drained.
- the softened hides of southern German cattle were fleshed green 5 (thickness about 4 mm) and the croupons of the hides were cut into 2.5 kg pieces of skin.
- the drum was operated for a further 45 minutes at 15 revolutions / minute. A further 40 parts by weight of water were then metered in. After 10 hours at 23 to 27 ° C with periodic operation at 3 revolutions / minute for 5 minutes each hour, the experiments were ended by draining off the liquor and washing the pelts twice for 15 minutes with 150% by weight of water ,
- the pelts treated according to the examples according to the invention were only slightly superior in terms of swelling to the hides treated according to comparative example C3, but were distinguished by a smoother and flatter scars, in particular the pelts of examples 3.2 and 3.3 according to the invention.
- the epidermis and the hair with hair root in 3.1 was largely and completely destroyed in 3.2 to 3.3.
- Crust leather 4.1 was obtained. until 4.2. with very good coloring and good firm grain with at the same time very good fullness and excellent softness with an elegant handle.
- the crust leathers 4.2 to 4.3 had smoother and finer scars than V4. Further application properties are shown in Table 4.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10223012 | 2002-05-22 | ||
| DE10223012 | 2002-05-22 | ||
| PCT/EP2003/005231 WO2003097880A1 (de) | 2002-05-22 | 2003-05-19 | Verfahren zur entfernung von hornsubstanzen aus häuten, pelzen oder pelzfellen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1511865A1 true EP1511865A1 (de) | 2005-03-09 |
| EP1511865B1 EP1511865B1 (de) | 2009-08-05 |
Family
ID=29432259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03752667A Expired - Lifetime EP1511865B1 (de) | 2002-05-22 | 2003-05-19 | Verfahren zur entfernung von hornsubstanzen aus häuten, pelzen oder pelzfellen |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US7404826B2 (de) |
| EP (1) | EP1511865B1 (de) |
| JP (1) | JP2005531650A (de) |
| KR (1) | KR20050010825A (de) |
| CN (1) | CN100381581C (de) |
| AR (1) | AR039980A1 (de) |
| AT (1) | ATE438742T1 (de) |
| AU (1) | AU2003232797A1 (de) |
| BR (1) | BR0311165A (de) |
| DE (1) | DE50311784D1 (de) |
| ES (1) | ES2329463T3 (de) |
| PT (1) | PT1511865E (de) |
| WO (1) | WO2003097880A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR039980A1 (es) | 2002-05-22 | 2005-03-09 | Basf Ag | Procedimiento para eliminar sustancias corneas de pieles o pellejos |
| AU2003273997A1 (en) * | 2002-10-21 | 2004-05-13 | Basf Aktiengesellschaft | Method for removing horn substances from animal skin |
| DE10353746A1 (de) * | 2003-11-17 | 2005-06-09 | Basf Ag | Verfahren zum Entfernen von Hornsubstanzen aus Häuten toter Tiere |
| CN102559948B (zh) * | 2010-12-14 | 2015-05-20 | 张壮斗 | 一种循环废液进行浸灰碱或复灰碱的羊皮制革工艺 |
| KR20220092672A (ko) | 2020-12-24 | 2022-07-04 | 한국신발피혁연구원 | 피혁 탈회 처리용 암모니아 무발생 탈회제 및 이를 이용한 피혁의 탈회 처리법 |
| CN117165725B (zh) * | 2023-09-08 | 2025-10-28 | 中国水产科学研究院黄海水产研究所 | 一种无灰制备绿鳍马面鲀鱼皮革的方法 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1973130A (en) | 1933-07-21 | 1934-09-11 | Rohm & Haas | Process of unhairing hides or skins |
| AT187223B (de) | 1954-06-24 | 1956-10-25 | Chemie Linz Ag | Verfahren zum Vorbereiten von tierischen Häuten für die Gerbung |
| US3097912A (en) * | 1959-03-30 | 1963-07-16 | Booth Henry | Hair and wool depilation method and composition |
| DE2131630A1 (de) * | 1970-06-29 | 1972-01-05 | Avon Prod Inc | Mittel zur Entfernung von Hornsubstanzen,insbesondere Haaren |
| US3865546A (en) * | 1970-10-22 | 1975-02-11 | Collaborative Res Inc | Depilatory composition and method of use |
| YU36755B (en) * | 1971-11-17 | 1984-08-31 | Basf Ag | Process for the elimination of hairs from hides and furs |
| DE2917376C2 (de) * | 1979-04-28 | 1987-03-26 | Röhm GmbH, 6100 Darmstadt | Enzymatisches Verfahren zur Haargewinnung und zum gleichzeitigen Hautaufschluß |
| US4618344A (en) * | 1982-06-01 | 1986-10-21 | The Procter & Gamble Company | Depilatory compositions |
| EP0095916A3 (de) | 1982-06-01 | 1984-08-08 | THE PROCTER & GAMBLE COMPANY | Enthaarungsmittel |
| EP0096521A3 (de) | 1982-06-01 | 1985-01-23 | THE PROCTER & GAMBLE COMPANY | Enthaarungsmittel |
| DE3224881A1 (de) | 1982-07-03 | 1984-03-01 | Röhm GmbH, 6100 Darmstadt | Verfahren zur herstellung von enthaartem, lagerfaehigem hautmaterial |
| US4472569A (en) | 1983-06-13 | 1984-09-18 | Phillips Petroleum Company | Mercaptohydroxy alkanes |
| DE19933968A1 (de) * | 1999-07-20 | 2001-01-25 | Trumpler Gmbh & Co Chem Fab | Hilfsmittel für den Hautaufschluß und die Haarlockerung von Tierhäuten |
| AR039980A1 (es) | 2002-05-22 | 2005-03-09 | Basf Ag | Procedimiento para eliminar sustancias corneas de pieles o pellejos |
| AU2003273997A1 (en) | 2002-10-21 | 2004-05-13 | Basf Aktiengesellschaft | Method for removing horn substances from animal skin |
| DE10249077A1 (de) | 2002-10-21 | 2004-04-29 | Basf Ag | Verfahren zur Herstellung von Leder |
| DE10309221A1 (de) | 2003-02-28 | 2004-09-09 | Basf Ag | Egalisierhilfsmittel für das Färben von Fasern |
-
2003
- 2003-05-08 AR ARP030101611A patent/AR039980A1/es not_active Application Discontinuation
- 2003-05-19 ES ES03752667T patent/ES2329463T3/es not_active Expired - Lifetime
- 2003-05-19 WO PCT/EP2003/005231 patent/WO2003097880A1/de not_active Ceased
- 2003-05-19 EP EP03752667A patent/EP1511865B1/de not_active Expired - Lifetime
- 2003-05-19 US US10/513,800 patent/US7404826B2/en not_active Expired - Fee Related
- 2003-05-19 PT PT03752667T patent/PT1511865E/pt unknown
- 2003-05-19 DE DE50311784T patent/DE50311784D1/de not_active Expired - Lifetime
- 2003-05-19 AU AU2003232797A patent/AU2003232797A1/en not_active Abandoned
- 2003-05-19 CN CNB038113422A patent/CN100381581C/zh not_active Expired - Fee Related
- 2003-05-19 BR BR0311165-2A patent/BR0311165A/pt not_active IP Right Cessation
- 2003-05-19 JP JP2004505393A patent/JP2005531650A/ja not_active Withdrawn
- 2003-05-19 KR KR10-2004-7018716A patent/KR20050010825A/ko not_active Withdrawn
- 2003-05-19 AT AT03752667T patent/ATE438742T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03097880A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005531650A (ja) | 2005-10-20 |
| BR0311165A (pt) | 2005-03-15 |
| US20050229326A1 (en) | 2005-10-20 |
| AR039980A1 (es) | 2005-03-09 |
| WO2003097880A1 (de) | 2003-11-27 |
| KR20050010825A (ko) | 2005-01-28 |
| ATE438742T1 (de) | 2009-08-15 |
| AU2003232797A1 (en) | 2003-12-02 |
| PT1511865E (pt) | 2009-08-21 |
| US7404826B2 (en) | 2008-07-29 |
| DE50311784D1 (de) | 2009-09-17 |
| CN1653195A (zh) | 2005-08-10 |
| EP1511865B1 (de) | 2009-08-05 |
| ES2329463T3 (es) | 2009-11-26 |
| CN100381581C (zh) | 2008-04-16 |
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