AU676600B2 - Enzymatically-aided liming process - Google Patents
Enzymatically-aided liming process Download PDFInfo
- Publication number
- AU676600B2 AU676600B2 AU74264/94A AU7426494A AU676600B2 AU 676600 B2 AU676600 B2 AU 676600B2 AU 74264/94 A AU74264/94 A AU 74264/94A AU 7426494 A AU7426494 A AU 7426494A AU 676600 B2 AU676600 B2 AU 676600B2
- Authority
- AU
- Australia
- Prior art keywords
- liming
- enzymes
- proteases
- skins
- float
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 title claims description 54
- 102000004190 Enzymes Human genes 0.000 claims description 48
- 108090000790 Enzymes Proteins 0.000 claims description 48
- 239000004365 Protease Substances 0.000 claims description 26
- 108091005804 Peptidases Proteins 0.000 claims description 24
- 102000035195 Peptidases Human genes 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 23
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 19
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 19
- 239000004571 lime Substances 0.000 claims description 19
- 108091005658 Basic proteases Proteins 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000003246 elastolytic effect Effects 0.000 claims 1
- 229940088598 enzyme Drugs 0.000 description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 238000003756 stirring Methods 0.000 description 15
- 230000035617 depilation Effects 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000003165 hydrotropic effect Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 241000233866 Fungi Species 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000010985 leather Substances 0.000 description 6
- -1 mercapto compounds Chemical class 0.000 description 6
- 230000000284 resting effect Effects 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- 230000002797 proteolythic effect Effects 0.000 description 5
- 235000014469 Bacillus subtilis Nutrition 0.000 description 4
- 102000008186 Collagen Human genes 0.000 description 4
- 108010035532 Collagen Proteins 0.000 description 4
- 229920001436 collagen Polymers 0.000 description 4
- TVPFLPJBESCUKI-UHFFFAOYSA-M potassium;n,n-dimethylcarbamodithioate Chemical compound [K+].CN(C)C([S-])=S TVPFLPJBESCUKI-UHFFFAOYSA-M 0.000 description 4
- 239000003755 preservative agent Substances 0.000 description 4
- 230000002335 preservative effect Effects 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 125000000623 heterocyclic group Chemical group 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 150000003904 phospholipids Chemical class 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 150000004763 sulfides Chemical class 0.000 description 3
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 241000193375 Bacillus alcalophilus Species 0.000 description 2
- 241000194108 Bacillus licheniformis Species 0.000 description 2
- 244000063299 Bacillus subtilis Species 0.000 description 2
- 102000016942 Elastin Human genes 0.000 description 2
- 108010014258 Elastin Proteins 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 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
- 102000016387 Pancreatic elastase Human genes 0.000 description 2
- 108010067372 Pancreatic elastase Proteins 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229920002549 elastin Polymers 0.000 description 2
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 2
- 229940117927 ethylene oxide Drugs 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000546 pharmaceutical excipient Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 210000001732 sebaceous gland Anatomy 0.000 description 2
- 210000002374 sebum Anatomy 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- ZRKMQKLGEQPLNS-UHFFFAOYSA-N 1-Pentanethiol Chemical compound CCCCCS ZRKMQKLGEQPLNS-UHFFFAOYSA-N 0.000 description 1
- GLGIHGJHHSONCV-UHFFFAOYSA-N 1-sulfanylpropane-1,2-diol Chemical compound CC(O)C(O)S GLGIHGJHHSONCV-UHFFFAOYSA-N 0.000 description 1
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 1
- RYYXDZDBXNUPOG-UHFFFAOYSA-N 4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine;dihydrochloride Chemical compound Cl.Cl.C1C(N)CCC2=C1SC(N)=N2 RYYXDZDBXNUPOG-UHFFFAOYSA-N 0.000 description 1
- 241000228212 Aspergillus Species 0.000 description 1
- 240000006439 Aspergillus oryzae Species 0.000 description 1
- 241000228230 Aspergillus parasiticus Species 0.000 description 1
- 241000193747 Bacillus firmus Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- LXXNWCFBZHKFPT-UHFFFAOYSA-N Ethyl 2-mercaptopropionate Chemical compound CCOC(=O)C(C)S LXXNWCFBZHKFPT-UHFFFAOYSA-N 0.000 description 1
- PNKUSGQVOMIXLU-UHFFFAOYSA-N Formamidine Chemical compound NC=N PNKUSGQVOMIXLU-UHFFFAOYSA-N 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 108091005507 Neutral proteases Proteins 0.000 description 1
- 102000035092 Neutral proteases Human genes 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241001236817 Paecilomyces <Clavicipitaceae> Species 0.000 description 1
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- 241001123663 Penicillium expansum Species 0.000 description 1
- 102000015439 Phospholipases Human genes 0.000 description 1
- 108010064785 Phospholipases Proteins 0.000 description 1
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 1
- 241000187747 Streptomyces Species 0.000 description 1
- 239000005864 Sulphur Chemical group 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- 125000002015 acyclic group Chemical group 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- PMNLUUOXGOOLSP-UHFFFAOYSA-N alpha-mercaptopropionic acid Natural products CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 1
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 230000003366 colagenolytic effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229940079919 digestives enzyme preparation Drugs 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
- 229940059082 douche Drugs 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 150000002169 ethanolamines Chemical class 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 235000010356 sorbitol Nutrition 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- GEKDEMKPCKTKEC-UHFFFAOYSA-N tetradecane-1-thiol Chemical compound CCCCCCCCCCCCCCS GEKDEMKPCKTKEC-UHFFFAOYSA-N 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000080 wetting agent Substances 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
-
- 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
- C14C1/065—Enzymatic unhairing
-
- 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
- C14C3/04—Mineral tanning
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)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Cosmetics (AREA)
- Enzymes And Modification Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4332785 | 1993-09-27 | ||
| DE4332785A DE4332785A1 (de) | 1993-09-27 | 1993-09-27 | Verbessertes enzymunterstütztes Äscherverfahren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU7426494A AU7426494A (en) | 1995-04-06 |
| AU676600B2 true AU676600B2 (en) | 1997-03-13 |
Family
ID=6498694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU74264/94A Ceased AU676600B2 (en) | 1993-09-27 | 1994-09-27 | Enzymatically-aided liming process |
Country Status (9)
| Country | Link |
|---|---|
| KR (1) | KR950008695A (pt) |
| AU (1) | AU676600B2 (pt) |
| BR (1) | BR9403865A (pt) |
| DE (1) | DE4332785A1 (pt) |
| ES (1) | ES2076905B1 (pt) |
| GB (1) | GB2282148B (pt) |
| IT (1) | IT1267462B1 (pt) |
| NZ (1) | NZ264546A (pt) |
| TW (1) | TW394795B (pt) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10221152B4 (de) * | 2002-05-13 | 2008-10-30 | Schill + Seilacher Ag | Verfahren zur Herstellung sauberer Blößen in der Wasserwerkstatt |
| WO2016159394A1 (en) * | 2015-04-01 | 2016-10-06 | University Of Nairobi | New eco-friendly and clean method of processing hides and fish skins into leather using alkaline protease enzyme |
| CN105441602B (zh) * | 2015-12-23 | 2017-12-12 | 天津科技大学 | 复合蛋白酶浸水后使用钛盐和锌盐结合鞣制的方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2054642A (en) * | 1979-07-26 | 1981-02-18 | Roehm Gmbh | Manufacturing leather |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES391930A1 (es) * | 1970-12-03 | 1973-06-16 | Roehm Gmbh | Procedimiento para el remojo de pellejos y cueros. |
| ES421535A1 (es) * | 1973-01-13 | 1976-06-16 | Roehm Gmbh | Procedimiento para la preparacion de pellejos dispuestos para curtir a partir de cuero y pieles de origen animal. |
| DE2404789C3 (de) * | 1974-02-01 | 1979-02-15 | Roehm Gmbh, 6100 Darmstadt | Verfahren zur Herstellung gerbfertiger Blößen aus tierischen Häuten und Fellen |
| DE2917376C2 (de) * | 1979-04-28 | 1987-03-26 | Röhm GmbH, 6100 Darmstadt | Enzymatisches Verfahren zur Haargewinnung und zum gleichzeitigen Hautaufschluß |
| DE3802640A1 (de) * | 1988-01-29 | 1989-08-03 | Roehm Gmbh | Haarerhaltendes aescherverfahren |
| DE4220838A1 (de) * | 1992-06-25 | 1994-01-05 | Roehm Gmbh | Verfahren zum Äschern von Häuten und Fellen |
-
1993
- 1993-09-27 DE DE4332785A patent/DE4332785A1/de not_active Ceased
-
1994
- 1994-09-26 IT IT94TO000747A patent/IT1267462B1/it active IP Right Grant
- 1994-09-26 BR BR9403865A patent/BR9403865A/pt not_active IP Right Cessation
- 1994-09-26 ES ES09402014A patent/ES2076905B1/es not_active Expired - Fee Related
- 1994-09-27 KR KR1019940024241A patent/KR950008695A/ko not_active Withdrawn
- 1994-09-27 AU AU74264/94A patent/AU676600B2/en not_active Ceased
- 1994-09-27 GB GB9419426A patent/GB2282148B/en not_active Expired - Fee Related
- 1994-09-27 NZ NZ264546A patent/NZ264546A/en unknown
- 1994-12-07 TW TW083111382A patent/TW394795B/zh active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2054642A (en) * | 1979-07-26 | 1981-02-18 | Roehm Gmbh | Manufacturing leather |
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO940747A1 (it) | 1996-03-26 |
| ES2076905B1 (es) | 1996-08-16 |
| GB2282148A (en) | 1995-03-29 |
| ES2076905A1 (es) | 1995-11-01 |
| ITTO940747A0 (it) | 1994-09-26 |
| NZ264546A (en) | 1996-07-26 |
| DE4332785A1 (de) | 1995-03-30 |
| BR9403865A (pt) | 1995-05-30 |
| AU7426494A (en) | 1995-04-06 |
| KR950008695A (ko) | 1995-04-19 |
| GB2282148B (en) | 1997-09-10 |
| IT1267462B1 (it) | 1997-02-05 |
| TW394795B (en) | 2000-06-21 |
| GB9419426D0 (en) | 1994-11-09 |
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