GB472973A - Improvements in or relating to the manufacture of unhaired skins or hides - Google Patents
Improvements in or relating to the manufacture of unhaired skins or hidesInfo
- Publication number
- GB472973A GB472973A GB9655/36A GB965536A GB472973A GB 472973 A GB472973 A GB 472973A GB 9655/36 A GB9655/36 A GB 9655/36A GB 965536 A GB965536 A GB 965536A GB 472973 A GB472973 A GB 472973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- sodium
- oxidizing agents
- skins
- tryptases
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007800 oxidant agent Substances 0.000 abstract 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 3
- 102000004190 Enzymes Human genes 0.000 abstract 2
- 108090000790 Enzymes Proteins 0.000 abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 2
- 102000001400 Tryptase Human genes 0.000 abstract 2
- 108060005989 Tryptase Proteins 0.000 abstract 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 2
- 241000228212 Aspergillus Species 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Chemical compound OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000007792 addition Methods 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 150000001720 carbohydrates Chemical class 0.000 abstract 1
- 235000014633 carbohydrates Nutrition 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 150000003893 lactate salts Chemical class 0.000 abstract 1
- 239000010985 leather Substances 0.000 abstract 1
- 150000004780 naphthols Chemical class 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 150000002826 nitrites Chemical class 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- -1 oxyacids Chemical class 0.000 abstract 1
- 150000002989 phenols Chemical class 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 229960001922 sodium perborate Drugs 0.000 abstract 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/48—Hydrolases (3) acting on peptide bonds (3.4)
- C12N9/50—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25)
- C12N9/58—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from fungi
- C12N9/62—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from fungi from Aspergillus
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/96—Stabilising an enzyme by forming an adduct or a composition; Forming enzyme conjugates
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Medicinal Chemistry (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Mycology (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
472,973. Making leather. ROHM, O. April 1, 1936, No. 9655. Convention date, Feb. i, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 3, 1936.] [Class 76] Hides and skins are unhaired and prepared for tanning by treatment with a solution comprising one or more fungic tryptases and one or more oxidizing agents other than bichromates, permanganates and chlorine containing oxidizing agents, the bath being at weakly alkaline to weakly acid pH. The tryptases employed may suitably be those from types of aspergillus. Suitable oxidizing agents are alkali nitrates and nitrites, hydrogen peroxide, sodium peroxide, sodium perborate. Common salt or sodium sulphate may be added to the bath. Organic compounds containing hydroxyl groups may also be added, e.g. alcohols, oxyacids, carbohydrates, phenols and naphthols; grape sugar, lactates or glycerine are particular examples of such additions. The skins may be softened with sodium sulphite and carbonate prior to the enzyme bath. After the enzyme treatment they may be treated in an alkaline bath, e.g. of sodium carbonate, the hair in some cases having first been removed. Specification 472.911 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER98816A DE740472C (en) | 1936-02-08 | 1936-02-08 | Process for pickling ashed skin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB472973A true GB472973A (en) | 1937-10-01 |
Family
ID=89574674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9655/36A Expired GB472973A (en) | 1936-02-08 | 1936-04-01 | Improvements in or relating to the manufacture of unhaired skins or hides |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2157969A (en) |
| DE (1) | DE740472C (en) |
| FR (1) | FR817692A (en) |
| GB (1) | GB472973A (en) |
| NL (1) | NL46648C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE927464C (en) * | 1953-09-04 | 1955-05-09 | Roehm & Haas G M B H | Process for the production of tanned bare |
| FR1128945A (en) * | 1954-05-11 | 1957-01-14 | Laboratoires Labaz Soc D | Process of hair removal and confitage of skins |
| US2857317A (en) * | 1955-03-30 | 1958-10-21 | Roehm & Haas Gmbh | Treatment of skins and hides |
| DE1026038B (en) * | 1955-03-30 | 1958-03-13 | Roehm & Haas Gmbh | Depilating and unrolling green or softened skins |
| US3096253A (en) * | 1957-11-25 | 1963-07-02 | Ethicon Inc | Enzyme production |
| US4238345A (en) * | 1978-05-22 | 1980-12-09 | Economics Laboratory, Inc. | Stabilized liquid enzyme-containing detergent compositions |
| HU181796B (en) * | 1981-03-12 | 1983-11-28 | Boer Mueboer Cipoeipari Kut | Process for liming of raw hides with respect of the environment |
-
1936
- 1936-02-08 DE DER98816A patent/DE740472C/en not_active Expired
- 1936-04-01 GB GB9655/36A patent/GB472973A/en not_active Expired
- 1936-11-10 FR FR817692D patent/FR817692A/en not_active Expired
-
1937
- 1937-01-12 NL NL80763A patent/NL46648C/en active
- 1937-01-30 US US123295A patent/US2157969A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL46648C (en) | 1939-09-15 |
| DE740472C (en) | 1943-10-21 |
| US2157969A (en) | 1939-05-09 |
| FR817692A (en) | 1937-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1147657A (en) | Improvements in or relating to leather substitutes | |
| GB472973A (en) | Improvements in or relating to the manufacture of unhaired skins or hides | |
| DE896983C (en) | Process for the depilation and simultaneous pickling of soaked, alkaline or non-alkaline pretreated skins and pelts with mold tryptase | |
| AT156344B (en) | Process for the production of pelts ready for tanning. | |
| GB472911A (en) | Improvements in or relating to the manufacture of unhaired skins or hides | |
| US2225601A (en) | Dehairing of skins and hides | |
| US2179899A (en) | Process for preparing hides | |
| US3133002A (en) | Treatment of hides | |
| US2289993A (en) | Method of treating hides, skins, and pelts | |
| DE767061C (en) | Process for pickling ashed skin | |
| GB474991A (en) | Improvements in treating hides or skins | |
| GB495408A (en) | Improvements in or relating to the manufacture of unhaired skins or hides | |
| GB1047813A (en) | Method of dehairing hides or skins | |
| Wilson et al. | A Critical Study of Bating. | |
| US2339405A (en) | Recovery of glue from chrome tanned leather | |
| US2373410A (en) | Art of bating skins and hides | |
| GB491801A (en) | Improvements in or relating to the manufacture of unhaired skins or hides | |
| US1763319A (en) | Unhairing agent | |
| AT157945B (en) | Process for the production of pelts ready for tanning. | |
| DE701549C (en) | Process for the production of tanned bare | |
| US2353878A (en) | Dehairing skins | |
| US1974889A (en) | Preparation of hides or skins for tanning | |
| GB221058A (en) | Improvements in and relating to soaking liquors for dried hides and the like | |
| DE1022350B (en) | Give way to furs and skins | |
| SU429596A3 (en) | COMPOSITION FOR GRINDING |