SE334432B - - Google Patents
Info
- Publication number
- SE334432B SE334432B SE01890/68A SE189068A SE334432B SE 334432 B SE334432 B SE 334432B SE 01890/68 A SE01890/68 A SE 01890/68A SE 189068 A SE189068 A SE 189068A SE 334432 B SE334432 B SE 334432B
- Authority
- SE
- Sweden
- Prior art keywords
- pelts
- enzymes
- hairs
- treated
- guard hairs
- Prior art date
Links
- 108091005804 Peptidases Proteins 0.000 abstract 8
- 102000035195 Peptidases Human genes 0.000 abstract 6
- 210000004209 hair Anatomy 0.000 abstract 6
- 102000004190 Enzymes Human genes 0.000 abstract 4
- 229940088598 enzyme Drugs 0.000 abstract 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 108090000790 Enzymes Proteins 0.000 abstract 2
- 239000004365 Protease Substances 0.000 abstract 2
- 241000228197 Aspergillus flavus Species 0.000 abstract 1
- 240000006439 Aspergillus oryzae Species 0.000 abstract 1
- 235000002247 Aspergillus oryzae Nutrition 0.000 abstract 1
- 244000063299 Bacillus subtilis Species 0.000 abstract 1
- 235000014469 Bacillus subtilis Nutrition 0.000 abstract 1
- 241000499489 Castor canadensis Species 0.000 abstract 1
- 235000011779 Menyanthes trifoliata Nutrition 0.000 abstract 1
- 241000700110 Myocastor coypus Species 0.000 abstract 1
- 241000699700 Ondatra zibethicus Species 0.000 abstract 1
- 241000283216 Phocidae Species 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 230000001580 bacterial effect Effects 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 1
- 230000002538 fungal effect Effects 0.000 abstract 1
- -1 glycol ethers Chemical class 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 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
- C14C1/065—Enzymatic unhairing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Enzymes And Modification Thereof (AREA)
- Detergent Compositions (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
1,172,055. Removing guard hairs from pelts and furs. ROHM & HAAS G.m.b. H. Feb. 28, 1968 [March 3, 1967], No.9716/68. Heading C6C. In a process for removing guard hairs from pelts such as nutria, musquash, beaver and seal furs, the pelts are treated, e. g. for 2 to 7 hours, with at least one proteolytic enzyme until substantially all the guard hairs, but no other hairs, are loosened, and the guard hairs are then plucked out. The treatment with the proteolytic enzyme or enzymes may be effected in an approximately neutral to weakly alkaline aqueous medium, e.g. having a pH between 6 and 9, and preferably containing a non-ionic wetting agent based on glycol ethers. The pelts may be treated, on their flesh sides, with the proteolytic enzyme or enzymes in the form of a powder or aqueous paste. Suitable proteolytic enzymes are: bacterial proteases produced by Bacillus subtilis, and fungal proteases produced by Aspergillus oryzae or flavus. When the guard hairs have been plucked out, the pelts may be treated with formaldehyde to de-activate the enzyme or enzymes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER0045420 | 1967-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE334432B true SE334432B (en) | 1971-04-26 |
Family
ID=7407629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE01890/68A SE334432B (en) | 1967-03-03 | 1968-02-13 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3558430A (en) |
| DE (1) | DE1669354C3 (en) |
| FR (1) | FR1550918A (en) |
| GB (1) | GB1172055A (en) |
| SE (1) | SE334432B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2836824C2 (en) * | 1978-08-23 | 1987-01-29 | Henkel KGaA, 4000 Düsseldorf | Process for enzymatic fur softening |
| DE2930342A1 (en) * | 1979-07-26 | 1981-02-19 | Roehm Gmbh | IMPROVED METHOD FOR PRODUCING LEATHER |
| DE3312840A1 (en) * | 1983-04-09 | 1984-10-11 | Röhm GmbH, 6100 Darmstadt | Method for the wet degreasing of hide material |
| DE3704465C2 (en) * | 1987-02-13 | 1995-11-02 | Roehm Gmbh | Liquid formulations of enzymes |
| DK0784706T3 (en) * | 1994-10-07 | 2000-04-25 | Novo Nordisk As | Process for processing hides or skins for leather |
-
1967
- 1967-03-03 DE DE1669354A patent/DE1669354C3/en not_active Expired
-
1968
- 1968-01-15 FR FR1550918D patent/FR1550918A/fr not_active Expired
- 1968-02-13 SE SE01890/68A patent/SE334432B/xx unknown
- 1968-02-27 US US708536A patent/US3558430A/en not_active Expired - Lifetime
- 1968-02-28 GB GB9716/68A patent/GB1172055A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3558430A (en) | 1971-01-26 |
| FR1550918A (en) | 1968-12-20 |
| DE1669354B2 (en) | 1974-08-15 |
| DE1669354C3 (en) | 1975-04-10 |
| DE1669354A1 (en) | 1971-05-06 |
| GB1172055A (en) | 1969-11-26 |
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