DE724814C - Method of depilation of skins or pelts - Google Patents
Method of depilation of skins or peltsInfo
- Publication number
- DE724814C DE724814C DEK147320A DEK0147320A DE724814C DE 724814 C DE724814 C DE 724814C DE K147320 A DEK147320 A DE K147320A DE K0147320 A DEK0147320 A DE K0147320A DE 724814 C DE724814 C DE 724814C
- Authority
- DE
- Germany
- Prior art keywords
- skins
- depilation
- enzymes
- weight
- heavy metal
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 230000035617 depilation Effects 0.000 title claims description 5
- 102000004190 Enzymes Human genes 0.000 claims description 8
- 108090000790 Enzymes Proteins 0.000 claims description 8
- 229910001385 heavy metal Inorganic materials 0.000 claims description 6
- 150000002736 metal compounds Chemical class 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 230000002951 depilatory effect Effects 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- DOBUSJIVSSJEDA-UHFFFAOYSA-L 1,3-dioxa-2$l^{6}-thia-4-mercuracyclobutane 2,2-dioxide Chemical compound [Hg+2].[O-]S([O-])(=O)=O DOBUSJIVSSJEDA-UHFFFAOYSA-L 0.000 description 1
- 241000194103 Bacillus pumilus Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010027439 Metal poisoning Diseases 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 208000010501 heavy metal poisoning Diseases 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910000370 mercury sulfate Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000019833 protease Nutrition 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
- C14C1/065—Enzymatic unhairing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/64—Proteins; Peptides; Derivatives or degradation products thereof
- A61K8/66—Enzymes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q9/00—Preparations for removing hair or for aiding hair removal
- A61Q9/04—Depilatories
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Birds (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Epidemiology (AREA)
- Dermatology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Enthaarung von Häuten oder Fellen Zusatz zum Patent 721370 Es ist bekannt, zur Enthaarung von Häuten oder Fellen Sulfite zu benutzen. Man wendet die Sulfitle in Kombination mit Kalk oder anderen alkalisch reagierenden Stoffen an, wobei letztere Stoffe entweder gleichzeitig mit den Sulfitien oder anschließend zur Einwirkung auf die Häute gelangen. Auch die Kombination von Sulfiten mit Enzymen bei Enthaarungsverfahnen ist bekannt.Process for depilation of hides or skins. Patent addition 721370 It is known to use sulfites for depilation of hides or skins. The sulphites are used in combination with lime or other alkaline reactants Substances, the latter substances either simultaneously with the sulphites or subsequently come to act on the skins. Also the combination of sulfites with enzymes in depilatory traces is known.
Das Hauptpatent 721 370 betrifft nun ein Verfahren zur Entbaarung von Häuten oder Fellen, bei dem die Häute oder Felle zunächst mit Schwermetallverbindungen enthaltenden Lösungen von Sulfiten behandelt und anschließend im gleichen loder in einem gesonderten Bad mit Enzymen aus Mikroorganismen bzw. Pankreasenzymen behandelt werden. The main patent 721 370 now relates to a method for dismantling of hides or skins, in which the hides or skins are first made with heavy metal compounds containing solutions of sulfites and then treated in the same loder treated in a separate bath with enzymes from microorganisms or pancreatic enzymes will.
Durcli die Mitvenvendung der Schwermetallverbindungen wird das bekannte, mit einer Kombination von Sulfiten und Enzymen arleitende Enthaarungsverfahren verbessert.Through the use of heavy metal compounds, the well-known With a combination of sulphites and enzymes, the hair removal process is improved.
In Weiterbildung des Verfahrens des Hauptpatents ist nun gefunden worden, daß man auch so verfahren kann, daß man den Lösungen der Sulfite und Schwermetaliverbindungen von vornherein die Enzyme zusetzt, Auch bei einer solchen Arbeitsweise ist der Enthaarungseffekt besser als bei dem bekannten, ohne MitverwSendung von Schwermetallverbindungen arbeitenden Enthaarungsverfahren. In further development of the process of the main patent has now been found been that you can also proceed in such a way that one of the solutions of sulfites and heavy metal compounds from the outset adds the enzymes, the depilatory effect is also with such a working method better than the known one that works without the use of heavy metal compounds Depilation procedure.
Das Verfahren der vorliegenden Erfindung kann im übrigen unter ähnlichen Bedingungen durchgeführt werden wie das Verfahren des Hauptpatents. Man kann dieselben Metall verbindungen bzw. Enzyme verwenden. Auch können die beim Verfahren des Hauptpatents angewendeten Zusätze von Komplexbildnern und sonstigen Stoffen erfolgen. Naturgemäß ist es bei dem neuen Verfahren besonders, wichtig, eine Schwermetalivergiftung der Enzyme durch geeignete Zusätze zu verhindern. Incidentally, the method of the present invention can be used among similar ones Conditions are carried out like the procedure of the main patent. You can do the same metal Use compounds or enzymes. They can also use the Process of the main patent used additions of complexing agents and others Substances. Of course, with the new process it is particularly important to prevent heavy metal poisoning of the enzymes by using suitable additives.
Beispiele 1. 100 Gewichtsteile geweichter Kalbfelle werden bei 20 bis 250 mit einer Lösung von 10 Gewichtsteilen Natriumsulfit, 10 Gewichtsteilen Natriumbicarbonat, 3 Gewichtsteilen nitrilotriessigsaurem Natrium, 0,3 Gewichtsteilen Kupfersulfat und I Gewichtsteil eines bandelsüb] ichen Proteinasepräparates aus Bacillus mesentericus in 1000 Teilen Wasser behandelt. Nach 20 bis 30 Stunden sind die Felle baarlässig. Examples 1. 100 parts by weight of softened calfskins are used at 20 to 250 with a solution of 10 parts by weight of sodium sulfite, 10 parts by weight Sodium bicarbonate, 3 parts by weight of sodium nitrilotriacetate, 0.3 part by weight Copper sulfate and 1 part by weight of a proteinase preparation customary in the trade Bacillus mesentericus treated in 1000 parts of water. After 20 to 30 hours are the pelts bearable.
2. Man arbeitet wie in Beispiel I, verwendet t*ber an Stelle von 0,3 Gewichtsteilen Kupfer sulfat 0,4 Gewichtsteile Quecksilbersulfat. 2. Work as in Example I, using t * ber instead of 0.3 part by weight of copper sulfate 0.4 part by weight of mercury sulfate.
Ebenso kann man als Schwermetallverbindung auch Silbernitrat verwenden. Silver nitrate can also be used as a heavy metal compound.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK147320A DE724814C (en) | 1937-07-21 | 1937-07-21 | Method of depilation of skins or pelts |
| GB21010/37A GB500117A (en) | 1937-06-30 | 1937-07-29 | Improvements in unhairing processes |
| FR839560D FR839560A (en) | 1937-06-30 | 1938-06-21 | Process for depilating hides and skins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK147320A DE724814C (en) | 1937-07-21 | 1937-07-21 | Method of depilation of skins or pelts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE724814C true DE724814C (en) | 1942-09-08 |
Family
ID=89507641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK147320A Expired DE724814C (en) | 1937-06-30 | 1937-07-21 | Method of depilation of skins or pelts |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE724814C (en) |
-
1937
- 1937-07-21 DE DEK147320A patent/DE724814C/en not_active Expired
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