CN101225450B - Chrome-free tannage producing technique for goat glove leather - Google Patents
Chrome-free tannage producing technique for goat glove leather Download PDFInfo
- Publication number
- CN101225450B CN101225450B CN2008100173537A CN200810017353A CN101225450B CN 101225450 B CN101225450 B CN 101225450B CN 2008100173537 A CN2008100173537 A CN 2008100173537A CN 200810017353 A CN200810017353 A CN 200810017353A CN 101225450 B CN101225450 B CN 101225450B
- Authority
- CN
- China
- Prior art keywords
- chrome
- tanning
- leather
- agent
- washing
- 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 - Fee Related
Links
- 239000010985 leather Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 34
- 241000283707 Capra Species 0.000 title claims abstract description 21
- 238000005406 washing Methods 0.000 claims abstract description 34
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 14
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 14
- 238000005238 degreasing Methods 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 28
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 22
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 14
- 235000019253 formic acid Nutrition 0.000 claims description 14
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 14
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 12
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 9
- 238000005554 pickling Methods 0.000 claims description 9
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 4
- 229920000388 Polyphosphate Polymers 0.000 claims description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- -1 aluminium chlorohydroxide Chemical group 0.000 claims description 4
- 238000004043 dyeing Methods 0.000 claims description 4
- 235000006408 oxalic acid Nutrition 0.000 claims description 4
- 239000001205 polyphosphate Substances 0.000 claims description 4
- 235000011176 polyphosphates Nutrition 0.000 claims description 4
- 229910052711 selenium Inorganic materials 0.000 claims description 4
- 239000011669 selenium Substances 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 3
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical group [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 claims description 3
- SXZFFLUKKSLVFD-UHFFFAOYSA-N C(O)P(CO)(CO)CO.S(O)(O)(=O)=O Chemical group C(O)P(CO)(CO)CO.S(O)(O)(=O)=O SXZFFLUKKSLVFD-UHFFFAOYSA-N 0.000 claims description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- 235000012245 magnesium oxide Nutrition 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 235000015598 salt intake Nutrition 0.000 claims description 2
- 239000001632 sodium acetate Substances 0.000 claims description 2
- 229960004249 sodium acetate Drugs 0.000 claims description 2
- 235000017281 sodium acetate Nutrition 0.000 claims description 2
- 239000007844 bleaching agent Substances 0.000 claims 1
- 239000007800 oxidant agent Substances 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- 238000004945 emulsification Methods 0.000 description 5
- 239000011651 chromium Substances 0.000 description 4
- 230000026731 phosphorylation Effects 0.000 description 4
- 238000006366 phosphorylation reaction Methods 0.000 description 4
- 230000019635 sulfation Effects 0.000 description 4
- 238000005670 sulfation reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 2
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- IZUPBVBPLAPZRR-UHFFFAOYSA-N pentachlorophenol Chemical compound OC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl IZUPBVBPLAPZRR-UHFFFAOYSA-N 0.000 description 2
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 208000028804 PERCHING syndrome Diseases 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- YIEDSISPYKQADU-UHFFFAOYSA-N n-acetyl-n-[2-methyl-4-[(2-methylphenyl)diazenyl]phenyl]acetamide Chemical compound C1=C(C)C(N(C(C)=O)C(=O)C)=CC=C1N=NC1=CC=CC=C1C YIEDSISPYKQADU-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
Description
The mensuration project | Formaldehyde content (mg/kg) | Content of 6-valence Cr ions (mg/kg) | Pentachlorophenol (mg/kg) | Carcinogenic aromatic amine (mg/kg) |
The detected result technical indicator | 55.32 <150 | 2.06 <4 | Do not detect<4 | Do not detect<28 |
Operation | Consumption/% | Materials | Temperature/℃ | Time/min | pH | Remarks |
Pickling | 80 | Water | Normal temperature | |||
7.0 | Salt | 20 | Survey Baume 6~6.5 | |||
1.0 | Formic acid | 2×20+40 | 3.4~3.6 | |||
Tanning | 2 | Organic phosphine tanning agent (Granofin FCC) | 120 | Spend the night and change 30min next day | ||
0.4 | Sodium bicarbonate | 5×30+60 | 5.5~5.7 | |||
2.0 | Syntannin (Tanicor KW) | 60 | Control liquid | |||
Oxidation | 150 | Water | Normal temperature | |||
0.7 | Sodium peroxoborate | 60 | Check the oxidation situation | |||
Washing | 200 | Water | Normal temperature | 10 | Take horse and survey Ts 〉=85 ℃ |
Degreasing, rinsing | 300 | Water | 40 | |||
0.5 | Grease-removing agent (Tergolix SL-01) | Grease-removing agent consumption basis | ||||
0.4 | Oxalic acid | Situation is suitably adjusted | ||||
0.2 | Poly phosphate (Feliderm MPP) | |||||
0.1 | E.D.T.A. | 60 | 5.5~5.7 | Control liquid | ||
Washing | 200 | Water | 35 | 10 | Control liquid | |
Retanning, | 100 | Water | 35 |
Stuffing | 0.1 | E.D.T.A. | 60 | |||
2.0 | Synthetic fat liquor (Derminol CST) | Fatting agent is with 60 ℃ | ||||
2.0 | Phosphate fat-liquoring agent (Derminol SF) | Add after the hot water emulsification | ||||
2.0 | Phenylethylene-maleic anhydride retanning agent (Tergotan TSP) | |||||
4.0 | Resin retaning agent (Tergotan RFC) | 40 | ||||
6.0 | Sulfone class exchange syntan (Tergotan S) | 60 | ||||
100 | Water (55 ℃) | 45 | 5 | |||
3.0 | The big right oil of sulfation (Derminol RA) | Fatting agent is with 60 ℃ | ||||
3.0 | Phosphate fat-liquoring agent (Derminol SF) | 60 | Add after the hot water emulsification | |||
1.0 | Formic acid | 10 | ||||
1.0 | Formic acid | 45 | 3.5~3.6 | Control liquid | ||
Washing | 300 | Water | 45 | 10 | Control liquid | |
Stuffing again | 150 | Water | 45 | |||
2.0 | Phosphate fat-liquoring agent (Derminol SF) | Fatting agent hot water | ||||
1.0 | Synthetic fat liquor (Derminol CST) | Add after the emulsification | ||||
3.0 | Nonionic fatting agent (Dermafinish LB) | 60 | ||||
1.0 | Formic acid | 30 | 3.3~3.4 | Control liquid | ||
Washing | 300 | Water | 20 | 10 | Control liquid |
Operation | Consumption/% | Materials | Temperature/℃ | Time/min | pH | Remarks |
Pickling | 80 | Water | Normal temperature | |||
7.0 | Salt | 20 | Survey Baume 6~6.5 | |||
1.0 | Formic acid |
0.3 | Sulfuric acid (massfraction 98%) | 2×20+ 40 | 2.5~2.8 | |||
3 | Zirconium tanning agent or aluminum tanning agent | 60 | ||||
0.5 | Sodium bicarbonate | 40 | 3.4~3.6 | |||
Tanning | 2.5 | Organic phosphine tanning agent (Granofin FCC) | 120 | Spend the night and change 30min next day | ||
1.0 | Aromatic organic acid neutral salt (Feliderm DP) | |||||
1.0 | Cationic fat liquor (Catalix L) | 60 | ||||
0.3 | Sodium carbonate | 5×30+ 60 | 5.5~5.7 | |||
2.0 | Syntannin (Tanicor KW) | 60 | Control liquid | |||
Oxidation | 150 | Water | Normal temperature | |||
0.7 | Hydrogen peroxide | 60 | Check the oxidation situation | |||
Washing | 200 | Water | Normal temperature | 10 | Take horse and survey Ts 〉=85 ℃ |
Degreasing/rinsing | 250 | Water | 45 | |||
0.45 | Grease-removing agent (Tergolix SL-01) | Grease-removing agent consumption basis | ||||
0.45 | Oxalic acid | Situation is suitably adjusted | ||||
0.15 | Poly phosphate (Feliderm MPP) | |||||
0.15 | E.D.T.A. | 60 | 5.5~5.7 | Control liquid | ||
Washing | 200 | Water | 35 | 10 | Control liquid | |
Retanning, stuffing | 100 | Water | 35 | |||
4.0 | Synthetic fat liquor (Derminol CST) | Fatting agent is with 60 ℃ | ||||
3.0 | Sulfation natural oil (Derminol RA) | Add after the hot water emulsification | ||||
2.0 | Styrene-maleic anhydride copolymer (Tergotan TSP) | |||||
4.0 | Resene retanning agent (Tergotan RFC) | 60 |
5.0 | Sulfone class exchange syntan (Tergotan S) | 30 | ||||
3.0 | Aromatic series synthetic tanning agent (Syncotan MRL) | 30 | ||||
1.5 | Dyestuff (Derma Brown DR) | 30 | ||||
5.0 | Tannin extract (Granifin AL) | 60 | ||||
100 | Water | 45 | 5 | |||
5.0 | Sulfation natural oil (Derminol RA) | Fatting agent adds after with 60 ℃ of hot water emulsifications | ||||
3.0 | Phosphorylation fatting agent (Derminol SF) | 60 | ||||
1.0 | Formic acid | 10 | ||||
1.0 | Formic acid | 45 | 3.5~3.6 | Control liquid | ||
Washing | 300 | Water | 20 | 10 | Control liquid |
Operation | Consumption/% | Materials | Temperature/℃ | Time/min | PH | Remarks |
This pre-treating technology is with embodiment 2. | ||||||
Retanning, stuffing | 100 | Water | 35 | |||
3.0 | Phosphorylation fatting agent (Derminol SF) | 10 | ||||
6.0 | Tannin extract (Granofin TA) | 40 | ||||
1.5 | Dyestuff | 20 | ||||
3.0 | Styrene-maleic anhydride copolymer (Tergotan TSP) | |||||
2.0 | Sulphiting fatting agent (Derminol SJB) | 60 | ||||
1.0 | Formic acid | 30 | 3.5 | |||
1.0 | Levelling agent (Dermagen PC) | 40 | Control liquid |
Washing | 300 | Water | 5 | Control liquid |
Retanning again | 100 | Water | 35 | |||
2.0 | Cation oil (Catalix CX) | |||||
3.0 | Zirconium tanning agent | 60 | ||||
1.0 | Sodium formiate | 30 | ||||
0.5 | Sodium bicarbonate | 30 | 4.2 | Control liquid | ||
Washing | 300 | Water | 5 | Control liquid | ||
Neutralization | 100 | Water | 35 | |||
1.5 | Sodium formiate | 20 | ||||
1.0 | Bicarbonate of ammonia | 40 | 5.5 | Control liquid | ||
Washing | 300 | Water | 5 | Control liquid | ||
Dyeing, stuffing | 100 | Water | 45 | |||
1.0 | Dyestuff | 20 | ||||
4.0 | Phosphorylation fatting agent (Derminol SU-10) | |||||
3.0 | Phosphorylation fatting agent (Derminol SF) | |||||
4.0 | Sulphiting fatting agent (Derminol SJB) | |||||
3.0 | Sulfation natural oil (Derminol RA) | 60 | ||||
1.0 | Formic acid | 10 | ||||
1.0 | Formic acid | 40 | 3.3 | Control liquid | ||
Washing | 300 | Water | 10 | Control liquid |
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100173537A CN101225450B (en) | 2008-01-21 | 2008-01-21 | Chrome-free tannage producing technique for goat glove leather |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100173537A CN101225450B (en) | 2008-01-21 | 2008-01-21 | Chrome-free tannage producing technique for goat glove leather |
Publications (2)
Publication Number | Publication Date |
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CN101225450A CN101225450A (en) | 2008-07-23 |
CN101225450B true CN101225450B (en) | 2011-03-09 |
Family
ID=39857655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2008100173537A Expired - Fee Related CN101225450B (en) | 2008-01-21 | 2008-01-21 | Chrome-free tannage producing technique for goat glove leather |
Country Status (1)
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CN (1) | CN101225450B (en) |
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CN101736097B (en) * | 2008-11-22 | 2012-12-05 | 际华三五一二皮革服装有限公司 | Method for manufacturing white tanned shearling |
CN101463397B (en) * | 2009-01-14 | 2012-07-11 | 王德振 | Method for manufacturing chromium-free tanning environment protection pigskin shoes |
CN102220438A (en) * | 2010-04-16 | 2011-10-19 | 沁阳市利派皮业有限公司 | Environment-friendly production method for leather dual-purpose fur |
CN102534058A (en) * | 2010-12-24 | 2012-07-04 | 焦作隆丰皮草企业有限公司 | Tanning method for double-face leather |
CN102312023B (en) * | 2011-08-11 | 2013-06-12 | 温州伟硕皮业有限公司 | Secondary recycling method of pigskin chrome-free combination tannage waste liquid |
CN102517409B (en) * | 2011-11-28 | 2013-07-24 | 郑州科信化工有限公司 | Leather retanning method |
CN102747172B (en) * | 2012-07-05 | 2015-04-01 | 湖南省怀其皮革集团制革有限公司 | Manufacturing method for chromium-free aldehyde-free tanned pigskin shoe lining leather |
CN102758029B (en) * | 2012-07-09 | 2014-04-02 | 陕西科技大学 | Method for chrome-free tanning beach woolfell by adopting chrome-free tanning agent |
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CN103725810B (en) * | 2012-10-15 | 2017-02-08 | 焦作隆丰皮草企业有限公司 | Method for tanning sheep shorn-pile |
CN103225004B (en) * | 2013-04-24 | 2015-03-18 | 青铜峡市忠盛工贸有限公司 | Xilu goat fur treatment process |
CN103695575B (en) * | 2013-12-25 | 2015-05-27 | 宁夏吴忠市精艺裘皮制品有限公司 | Process for tanning goat leather by synthetic tanning agent |
CN104357593B (en) * | 2014-11-25 | 2016-06-08 | 陕西科技大学 | Leather tanning water soluble sulfonated resorcinol calixarenes tanning agent and preparation method thereof |
CN105544249A (en) * | 2016-01-29 | 2016-05-04 | 佛山市聚成生化技术研发有限公司 | Dyeing method of pig leather |
CN105925735B (en) * | 2016-05-06 | 2018-11-23 | 嘉兴学院 | One kind is salt-free to exempt from pickling short route bating method without chrome |
CN108165680B (en) * | 2018-03-05 | 2020-10-09 | 焦作隆丰皮草企业有限公司 | Comprehensive tanning agent for fur and non-dry-cleaning and chrome-free tanning process for fur |
CN108728593A (en) * | 2018-05-04 | 2018-11-02 | 明新旭腾新材料股份有限公司 | A kind of preparation method of low fogging value eco-car leather |
CN111304381B (en) * | 2020-03-17 | 2022-04-08 | 焦作隆丰皮草企业有限公司 | Pickling softener, ecological tanning agent and production process of soil-fattened wool leather |
CN111705171B (en) * | 2020-07-06 | 2022-04-22 | 河南中牛实业有限公司 | Production method of cow leather upper leather for dance shoes |
CN114672598B (en) * | 2022-04-02 | 2024-01-19 | 隆丰革乐美时尚有限公司 | Chrome-free tanned sheepskin clothing leather and chrome-free tannage method thereof |
CN116769979A (en) * | 2023-08-03 | 2023-09-19 | 江西隆华材料科技股份有限公司 | Preparation method of sheep leather |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1804045A (en) * | 2005-12-02 | 2006-07-19 | 四川大学 | Method for tanning high-temperature stable chromium-free costume soft leather |
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2008
- 2008-01-21 CN CN2008100173537A patent/CN101225450B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1804045A (en) * | 2005-12-02 | 2006-07-19 | 四川大学 | Method for tanning high-temperature stable chromium-free costume soft leather |
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