GB1014559A - Improvements in or relating to the bating of hides and skins - Google Patents
Improvements in or relating to the bating of hides and skinsInfo
- Publication number
- GB1014559A GB1014559A GB1668764A GB1668764A GB1014559A GB 1014559 A GB1014559 A GB 1014559A GB 1668764 A GB1668764 A GB 1668764A GB 1668764 A GB1668764 A GB 1668764A GB 1014559 A GB1014559 A GB 1014559A
- Authority
- GB
- United Kingdom
- Prior art keywords
- enzymes
- acid
- bating
- derived
- aspergillus
- 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
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
- C14C1/08—Deliming; Bating; Pickling; Degreasing
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
In bating hides or skins, which may have been limed with lime and sulphides, they are subjected, in an aqueous liquor at acid pH, e.g., between pH 3 and 5, to the action of a mixture of proteolytic enzymes (a) active at acid pH and proteolytic enzymes (b) having optimum activity at alkaline pH. The bating may be effected at a temperature ranging from 20-30 DEG C. Enzymes (a) may be derived from Aspergillus microorganisms. Specified enzymes (a) are: protease from Aspergillus flavus and protease from Aspergillus parasiticus. Enzymes (b) may be provided by pancreas tryptase or derived from Streptomyces bacterial cultures. The weight ratio of enzymes (a) to (b) may range between 10:90 and 90:10. The bating liquor may also contain: carbohydrases, e.g. derived from microorganisms, neutral salts such as sodium chloride and/or ammonium sulphate, and an organic acid, such as formic acid, a -hydroxy-isobutyric acid or b -naphthalene sulphonic acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1963R0035137 DE1282837B (en) | 1963-05-09 | 1963-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1014559A true GB1014559A (en) | 1965-12-31 |
Family
ID=7404534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1668764A Expired GB1014559A (en) | 1963-05-09 | 1964-04-22 | Improvements in or relating to the bating of hides and skins |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT248598B (en) |
| BE (1) | BE647664A (en) |
| CH (1) | CH436553A (en) |
| DE (1) | DE1282837B (en) |
| DK (1) | DK117372B (en) |
| FI (1) | FI41845B (en) |
| GB (1) | GB1014559A (en) |
| NL (1) | NL6404778A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3704465C2 (en) * | 1987-02-13 | 1995-11-02 | Roehm Gmbh | Liquid formulations of enzymes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749830C (en) * | 1942-03-09 | 1953-01-26 | Roehm & Haas G M B H | Process for pickling dehaired skins and pelts using proteolytic enzymes |
| DE888741C (en) * | 1943-09-14 | 1953-09-03 | Roehm & Haas G M B H | Process for pickling dehaired skins and pelts using proteolytic enzymes |
| DE974813C (en) * | 1954-12-24 | 1961-05-04 | Roehm & Haas G M B H | Process for pickling animal skin |
| FR1125307A (en) * | 1955-03-30 | 1956-10-29 | Roehm & Haas Gmbh | Enzymatic process for stripping and stripping |
-
1963
- 1963-05-09 DE DE1963R0035137 patent/DE1282837B/de active Pending
-
1964
- 1964-03-12 AT AT214164A patent/AT248598B/en active
- 1964-03-17 CH CH342564A patent/CH436553A/en unknown
- 1964-03-24 FI FI63264A patent/FI41845B/fi active
- 1964-04-22 GB GB1668764A patent/GB1014559A/en not_active Expired
- 1964-04-29 NL NL6404778A patent/NL6404778A/xx unknown
- 1964-05-08 BE BE647664A patent/BE647664A/xx unknown
- 1964-05-09 DK DK233564A patent/DK117372B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH436553A (en) | 1967-05-31 |
| BE647664A (en) | 1964-08-31 |
| NL6404778A (en) | 1964-11-10 |
| DE1282837B (en) | 1968-11-14 |
| DK117372B (en) | 1970-04-20 |
| AT248598B (en) | 1966-08-10 |
| FI41845B (en) | 1969-12-01 |
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