GB1106391A - A depilation process - Google Patents
A depilation processInfo
- Publication number
- GB1106391A GB1106391A GB1357866A GB1357866A GB1106391A GB 1106391 A GB1106391 A GB 1106391A GB 1357866 A GB1357866 A GB 1357866A GB 1357866 A GB1357866 A GB 1357866A GB 1106391 A GB1106391 A GB 1106391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkaline earth
- alkali metal
- earth metal
- sodium
- peroxide
- 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 abstract 2
- 230000035617 depilation Effects 0.000 title 1
- 150000001340 alkali metals Chemical class 0.000 abstract 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 abstract 2
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 2
- -1 dimethylamine Chemical class 0.000 abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 abstract 1
- 150000001342 alkaline earth metals Chemical class 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 239000001110 calcium chloride Substances 0.000 abstract 1
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 210000004209 hair Anatomy 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 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
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)
- Detergent Compositions (AREA)
Abstract
In a process for depilating and bleaching animal hides and skins by oxidation, they are treated, e.g. in a tub which is occasionally rocked, with an aqueous solution or suspension comprising an alkali metal or alkaline earth metal peroxide, e.g. sodium peroxide, an alkali metal or alkaline earth metal hydroxide, e.g. sodium or calcium hydroxide, and, optionally, a basic amine, e.g. dimethylamine, and/or a neutral alkali metal or alkaline earth metal salt, e.g. calcium chloride. The hairs are loosened and bleached, but not destroyed. Their complete removal and recovery may be effected in a conventional stripping machine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED46904A DE1278679B (en) | 1965-03-26 | 1965-03-26 | Process for depilating skins or pelts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1106391A true GB1106391A (en) | 1968-03-13 |
Family
ID=7050039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1357866A Expired GB1106391A (en) | 1965-03-26 | 1966-03-28 | A depilation process |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE678419A (en) |
| DE (1) | DE1278679B (en) |
| GB (1) | GB1106391A (en) |
| NL (1) | NL6603347A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376042A (en) * | 1991-06-19 | 1994-12-27 | Peroxidos Do Brasil Ltd. | Process for the depilation of animal skins |
| EP3091058A1 (en) | 2015-05-04 | 2016-11-09 | Dani S.P.A. | Tanning process which comprises oxidative liming step |
| IT201900015300A1 (en) * | 2019-08-30 | 2021-03-02 | Leder Chimica Srl | PRODUCT FOR TANNING FOR AN OXIDATIVE DEPILATION TREATMENT OF ANIMAL SKINS AND RELATED PROCEDURE |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA392525A (en) * | 1940-11-12 | Rohm Otto | Hide preparing process | |
| DE888740C (en) * | 1936-02-08 | 1953-09-03 | Roehm & Haas G M B H | Process for the depilation and simultaneous pickling of soaked, alkaline or non-alkaline pretreated skins with mold tryptase |
-
1965
- 1965-03-26 DE DED46904A patent/DE1278679B/en active Pending
-
1966
- 1966-03-15 NL NL6603347A patent/NL6603347A/xx unknown
- 1966-03-24 BE BE678419D patent/BE678419A/xx unknown
- 1966-03-28 GB GB1357866A patent/GB1106391A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5376042A (en) * | 1991-06-19 | 1994-12-27 | Peroxidos Do Brasil Ltd. | Process for the depilation of animal skins |
| EP3091058A1 (en) | 2015-05-04 | 2016-11-09 | Dani S.P.A. | Tanning process which comprises oxidative liming step |
| IT201900015300A1 (en) * | 2019-08-30 | 2021-03-02 | Leder Chimica Srl | PRODUCT FOR TANNING FOR AN OXIDATIVE DEPILATION TREATMENT OF ANIMAL SKINS AND RELATED PROCEDURE |
| WO2021038607A1 (en) * | 2019-08-30 | 2021-03-04 | Leder Chimica Srl | Tannery product for oxidative hair removal treatment of animal hides and skins and relative method |
| CN114302969A (en) * | 2019-08-30 | 2022-04-08 | 莱德尔化学有限责任公司 | Tanning product for the oxidative dehairing treatment of animal hides and related process |
| CN114302969B (en) * | 2019-08-30 | 2024-05-31 | 莱德尔化学有限责任公司 | Leather products for oxidative dehairing of animal hides and related methods |
| US12454730B2 (en) | 2019-08-30 | 2025-10-28 | Leder Chimica Srl | Tannery product for oxidative hair removal treatment of animal hides and skins and relative method |
Also Published As
| Publication number | Publication date |
|---|---|
| BE678419A (en) | 1966-09-01 |
| NL6603347A (en) | 1966-09-27 |
| DE1278679B (en) | 1968-09-26 |
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