FR1125307A - Enzymatic process for stripping and stripping - Google Patents
Enzymatic process for stripping and strippingInfo
- Publication number
- FR1125307A FR1125307A FR1125307DA FR1125307A FR 1125307 A FR1125307 A FR 1125307A FR 1125307D A FR1125307D A FR 1125307DA FR 1125307 A FR1125307 A FR 1125307A
- Authority
- FR
- France
- Prior art keywords
- bating
- enzymic
- proteolytic enzymes
- goatskins
- salted
- 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
Links
- 230000002255 enzymatic effect Effects 0.000 title 1
- 102000035195 Peptidases Human genes 0.000 abstract 4
- 108091005804 Peptidases Proteins 0.000 abstract 4
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 abstract 3
- 241000233866 Fungi Species 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 102000001400 Tryptase Human genes 0.000 abstract 2
- 108060005989 Tryptase Proteins 0.000 abstract 2
- 239000004367 Lipase Substances 0.000 abstract 1
- 102000004882 Lipase Human genes 0.000 abstract 1
- 108090001060 Lipase Proteins 0.000 abstract 1
- 239000004365 Protease Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 1
- 235000011130 ammonium sulphate Nutrition 0.000 abstract 1
- 239000001166 ammonium sulphate Substances 0.000 abstract 1
- 230000001580 bacterial effect Effects 0.000 abstract 1
- 244000309466 calf Species 0.000 abstract 1
- 108010089934 carbohydrase Proteins 0.000 abstract 1
- 239000010985 leather Substances 0.000 abstract 1
- 235000019421 lipase Nutrition 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 abstract 1
- 235000019832 sodium triphosphate Nutrition 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)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Cosmetics (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
795,850. Bating leather. ROHM & HAAS GES. Oct. 22, 1956 [Oct. 21, 1955], No. 32143/56. Addition to 776,323. Class 76. Green or soaked hides or skins which have been fleeced or dehaired by the application of enzymic material in the form of a powder as disclosed in the parent Specification are subsequently enzymically bated at a pH of 3-5. Proteolytic enzymes such as pancreatic tryptase, bacterial proteases, or preferably mould fungi tryptases may be employed. By bating at such an acid pH the creation of loose grain produced by proteolytic enzymes acting at an alkaline pH is avoided. The bating lasts from 6 to 36 hours and if necessary may be preceded by a weak enzymic bating at an alkaline pH. In addition to the proteolytic enzymes, mould fungi carbohydrases and/or lipases and advantageously one or more neutral salts such as sodium chloride, ammonium sulphate, or sodium tripolyphosphate may be present. Examples are given of the dehairing by enzymic means and subsequent enxymic bating of: (1) dry goatskins, (2) salted sheepskins, (3) salted calf skins, (4) dry goatskins.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1125307X | 1955-03-30 | ||
| DER17626A DE1134474B (en) | 1955-03-30 | 1955-10-21 | Process for the production of tanned bare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1125307A true FR1125307A (en) | 1956-10-29 |
Family
ID=89574673
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1125307D Expired FR1125307A (en) | 1955-03-30 | 1955-05-26 | Enzymatic process for stripping and stripping |
| FR70589D Expired FR70589E (en) | 1955-03-30 | 1956-10-22 | Enzymatic process for stripping and stripping |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR70589D Expired FR70589E (en) | 1955-03-30 | 1956-10-22 | Enzymatic process for stripping and stripping |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE551899R (en) |
| CH (1) | CH350067A (en) |
| DE (1) | DE1134474B (en) |
| FR (2) | FR1125307A (en) |
| GB (2) | GB776323A (en) |
| NL (1) | NL94003C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1282837B (en) * | 1963-05-09 | 1968-11-14 | ||
| DE3704465C2 (en) * | 1987-02-13 | 1995-11-02 | Roehm Gmbh | Liquid formulations of enzymes |
| US7198647B2 (en) * | 2002-07-15 | 2007-04-03 | Council Of Scientific And Industrial Research | Process for lime and sulfide free unhairing of skins or hides using animal and/or plant enzymes |
| CN113430187A (en) * | 2021-06-23 | 2021-09-24 | 山东黎宁科技新材料有限公司 | Complex enzyme for leather softening and preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB346836A (en) * | 1929-09-12 | 1931-04-20 | Ig Farbenindustrie Ag | Improvements in the treatment of skins and pelts |
-
1955
- 1955-05-26 FR FR1125307D patent/FR1125307A/en not_active Expired
- 1955-06-21 GB GB17935/55A patent/GB776323A/en not_active Expired
- 1955-10-21 DE DER17626A patent/DE1134474B/en active Pending
-
1956
- 1956-10-18 BE BE551899A patent/BE551899R/fr active
- 1956-10-20 CH CH350067D patent/CH350067A/en unknown
- 1956-10-20 NL NL211569A patent/NL94003C/en active
- 1956-10-22 GB GB32143/56A patent/GB795850A/en not_active Expired
- 1956-10-22 FR FR70589D patent/FR70589E/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH350067A (en) | 1960-11-15 |
| FR70589E (en) | 1959-05-29 |
| GB776323A (en) | 1957-06-05 |
| DE1134474B (en) | 1962-08-09 |
| NL94003C (en) | 1960-04-19 |
| BE551899R (en) | 1959-12-31 |
| GB795850A (en) | 1958-05-28 |
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