ATE93898T1 - TANNING PROCESSES OF FURS. - Google Patents
TANNING PROCESSES OF FURS.Info
- Publication number
- ATE93898T1 ATE93898T1 AT90201637T AT90201637T ATE93898T1 AT E93898 T1 ATE93898 T1 AT E93898T1 AT 90201637 T AT90201637 T AT 90201637T AT 90201637 T AT90201637 T AT 90201637T AT E93898 T1 ATE93898 T1 AT E93898T1
- Authority
- AT
- Austria
- Prior art keywords
- hides
- bath
- tanning
- water
- tanning agent
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- 239000003795 chemical substances by application Substances 0.000 abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- 150000001844 chromium Chemical class 0.000 abstract 1
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 239000010985 leather Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 230000000717 retained effect Effects 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
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
- C14C9/04—Fixing tanning agents in the leather
-
- 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
- C14C3/06—Mineral tanning using chromium compounds
-
- 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to a process for tanning acidified wet raw hides. This process consists (a) in preparing a water-insoluble organic liquid bath, (b) in suspending in this bath an inorganic tanning agent based on a metal compound, especially a chromium salt or complex, (c) in adjusting the degree of hydration of the hides above a minimum threshold of 200% (weight of water added to the dry weight of hides) and below a maximum threshold corresponding to the limit of retention of water in the hide, (d) in bringing the hides thus hydrated into contact in the organic bath containing the tanning agent for a period of at least 4 hours and in slowly introducing a base into the bath so as gradually to raise the pH of the water retained in the hides to a final value of between a minimum threshold of 3.9 in the case of a chrome tanning agent, and a maximum threshold of 4.4 in the case of this chrome agent, and (e) in removing the hides from the bath and leaving them to rest for at least 24 hours. The process of the invention makes it possible to obtain at the same time a complete exhaustion of the tanning bath, an absence of release of tanning agent in the subsequent finishing operations and a leather of good quality.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8909655A FR2649413B1 (en) | 1989-07-10 | 1989-07-10 | SKIN TANNING PROCESS |
| EP90201637A EP0408097B1 (en) | 1989-07-10 | 1990-06-22 | Tanning process of hides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE93898T1 true ATE93898T1 (en) | 1993-09-15 |
Family
ID=9383885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT90201637T ATE93898T1 (en) | 1989-07-10 | 1990-06-22 | TANNING PROCESSES OF FURS. |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0408097B1 (en) |
| JP (1) | JPH03129000A (en) |
| KR (1) | KR910003119A (en) |
| CN (1) | CN1049526A (en) |
| AT (1) | ATE93898T1 (en) |
| BR (1) | BR9003194A (en) |
| CA (1) | CA2020548A1 (en) |
| CS (1) | CS276444B6 (en) |
| DD (1) | DD296506A5 (en) |
| DE (1) | DE69003040D1 (en) |
| ES (1) | ES2045762T3 (en) |
| FR (1) | FR2649413B1 (en) |
| MA (1) | MA21899A1 (en) |
| PT (1) | PT94631B (en) |
| TR (1) | TR25083A (en) |
| YU (1) | YU131890A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2386702C1 (en) * | 2009-06-29 | 2010-04-20 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный университет технологии и дизайна" | Method of tanning hides |
| IN2014DE00085A (en) * | 2014-01-13 | 2015-07-17 | Council Scient Ind Res | |
| CN105525047B (en) * | 2016-02-19 | 2017-12-26 | 北京泛博化学股份有限公司 | A kind of aluminium oil process for tanning of mustrat |
| CN106435053B (en) * | 2016-12-12 | 2018-10-19 | 温州大学 | It is a kind of to be used for complexing agent and its preparation method and application of the leather without chrome tanning tanning processes |
| DK179649B1 (en) * | 2017-06-26 | 2019-03-11 | Ecco Sko A/S | A process for tanning animal hides |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AR212025A1 (en) * | 1975-07-19 | 1978-04-28 | Boehme Chem Fab Kg | LEATHER AND LEATHER PREPARATION PROCEDURE |
| SU821489A1 (en) * | 1978-11-28 | 1981-04-15 | Восточно-Сибирский Технологическийинститут | Hide tanning composition |
-
1989
- 1989-07-10 FR FR8909655A patent/FR2649413B1/en not_active Expired - Fee Related
-
1990
- 1990-06-22 AT AT90201637T patent/ATE93898T1/en not_active IP Right Cessation
- 1990-06-22 ES ES90201637T patent/ES2045762T3/en not_active Expired - Lifetime
- 1990-06-22 EP EP90201637A patent/EP0408097B1/en not_active Expired - Lifetime
- 1990-06-22 DE DE90201637T patent/DE69003040D1/en not_active Expired - Lifetime
- 1990-07-05 BR BR909003194A patent/BR9003194A/en not_active Application Discontinuation
- 1990-07-05 CA CA002020548A patent/CA2020548A1/en not_active Abandoned
- 1990-07-06 MA MA22168A patent/MA21899A1/en unknown
- 1990-07-07 JP JP2180369A patent/JPH03129000A/en active Pending
- 1990-07-09 YU YU131890A patent/YU131890A/en unknown
- 1990-07-09 CS CS903383A patent/CS276444B6/en unknown
- 1990-07-09 PT PT94631A patent/PT94631B/en not_active IP Right Cessation
- 1990-07-10 CN CN90104521A patent/CN1049526A/en active Pending
- 1990-07-10 KR KR1019900010409A patent/KR910003119A/en not_active Withdrawn
- 1990-07-10 DD DD90342642A patent/DD296506A5/en unknown
- 1990-07-30 TR TR90/0677A patent/TR25083A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TR25083A (en) | 1992-11-01 |
| YU131890A (en) | 1992-07-20 |
| FR2649413B1 (en) | 1993-05-28 |
| CA2020548A1 (en) | 1991-01-11 |
| BR9003194A (en) | 1991-08-27 |
| CN1049526A (en) | 1991-02-27 |
| JPH03129000A (en) | 1991-05-31 |
| EP0408097B1 (en) | 1993-09-01 |
| CS276444B6 (en) | 1992-05-13 |
| KR910003119A (en) | 1991-02-26 |
| PT94631A (en) | 1991-03-20 |
| PT94631B (en) | 1996-01-31 |
| FR2649413A1 (en) | 1991-01-11 |
| MA21899A1 (en) | 1991-04-01 |
| DE69003040D1 (en) | 1993-10-07 |
| ES2045762T3 (en) | 1994-01-16 |
| EP0408097A1 (en) | 1991-01-16 |
| DD296506A5 (en) | 1991-12-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |