FR2649413B1 - SKIN TANNING PROCESS - Google Patents
SKIN TANNING PROCESSInfo
- Publication number
- FR2649413B1 FR2649413B1 FR8909655A FR8909655A FR2649413B1 FR 2649413 B1 FR2649413 B1 FR 2649413B1 FR 8909655 A FR8909655 A FR 8909655A FR 8909655 A FR8909655 A FR 8909655A FR 2649413 B1 FR2649413 B1 FR 2649413B1
- Authority
- FR
- France
- Prior art keywords
- hides
- bath
- tanning
- water
- tanning agent
- 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 - Fee Related
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
- 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)
- Macromonomer-Based Addition Polymer (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (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.
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8909655A FR2649413B1 (en) | 1989-07-10 | 1989-07-10 | SKIN TANNING PROCESS |
AT90201637T ATE93898T1 (en) | 1989-07-10 | 1990-06-22 | TANNING PROCESSES OF FURS. |
DE90201637T DE69003040D1 (en) | 1989-07-10 | 1990-06-22 | Tanning process of furs. |
EP90201637A EP0408097B1 (en) | 1989-07-10 | 1990-06-22 | Tanning process of hides |
ES90201637T ES2045762T3 (en) | 1989-07-10 | 1990-06-22 | SKIN TANNING PROCEDURE. |
BR909003194A BR9003194A (en) | 1989-07-10 | 1990-07-05 | PROCESS TO ENJOY ACIDIFIED RAW SKINS |
CA002020548A CA2020548A1 (en) | 1989-07-10 | 1990-07-05 | Skin tanning process |
MA22168A MA21899A1 (en) | 1989-07-10 | 1990-07-06 | SKIN TANNING PROCESS |
JP2180369A JPH03129000A (en) | 1989-07-10 | 1990-07-07 | Method for tanning a leather |
PT94631A PT94631B (en) | 1989-07-10 | 1990-07-09 | PROCESS FOR SKIN CURING |
CS903383A CS276444B6 (en) | 1989-07-10 | 1990-07-09 | Process for pickle-cured hides tanning |
YU131890A YU131890A (en) | 1989-07-10 | 1990-07-09 | SKIN TANNING PROCEDURE |
KR1019900010409A KR910003119A (en) | 1989-07-10 | 1990-07-10 | Raw skin oily method |
CN90104521A CN1049526A (en) | 1989-07-10 | 1990-07-10 | fur tanning method |
DD90342642A DD296506A5 (en) | 1989-07-10 | 1990-07-10 | METHOD OF TANGING SKINS |
TR90/0677A TR25083A (en) | 1989-07-10 | 1990-07-30 | POSTS SELECTION PROCEDURE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8909655A FR2649413B1 (en) | 1989-07-10 | 1989-07-10 | SKIN TANNING PROCESS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2649413A1 FR2649413A1 (en) | 1991-01-11 |
FR2649413B1 true FR2649413B1 (en) | 1993-05-28 |
Family
ID=9383885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8909655A Expired - Fee Related FR2649413B1 (en) | 1989-07-10 | 1989-07-10 | SKIN TANNING PROCESS |
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 (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 DE DE90201637T patent/DE69003040D1/en not_active Expired - Lifetime
- 1990-06-22 AT AT90201637T patent/ATE93898T1/en not_active IP Right Cessation
- 1990-06-22 EP EP90201637A patent/EP0408097B1/en not_active Expired - Lifetime
- 1990-06-22 ES ES90201637T patent/ES2045762T3/en not_active Expired - Lifetime
- 1990-07-05 CA CA002020548A patent/CA2020548A1/en not_active Abandoned
- 1990-07-05 BR BR909003194A patent/BR9003194A/en not_active Application Discontinuation
- 1990-07-06 MA MA22168A patent/MA21899A1/en unknown
- 1990-07-07 JP JP2180369A patent/JPH03129000A/en active Pending
- 1990-07-09 CS CS903383A patent/CS276444B6/en unknown
- 1990-07-09 YU YU131890A patent/YU131890A/en unknown
- 1990-07-09 PT PT94631A patent/PT94631B/en not_active IP Right Cessation
- 1990-07-10 DD DD90342642A patent/DD296506A5/en unknown
- 1990-07-10 KR KR1019900010409A patent/KR910003119A/en not_active Application Discontinuation
- 1990-07-10 CN CN90104521A patent/CN1049526A/en active Pending
- 1990-07-30 TR TR90/0677A patent/TR25083A/en unknown
Also Published As
Publication number | Publication date |
---|---|
PT94631A (en) | 1991-03-20 |
CN1049526A (en) | 1991-02-27 |
ATE93898T1 (en) | 1993-09-15 |
DE69003040D1 (en) | 1993-10-07 |
KR910003119A (en) | 1991-02-26 |
CS276444B6 (en) | 1992-05-13 |
EP0408097A1 (en) | 1991-01-16 |
BR9003194A (en) | 1991-08-27 |
CA2020548A1 (en) | 1991-01-11 |
DD296506A5 (en) | 1991-12-05 |
JPH03129000A (en) | 1991-05-31 |
MA21899A1 (en) | 1991-04-01 |
YU131890A (en) | 1992-07-20 |
TR25083A (en) | 1992-11-01 |
FR2649413A1 (en) | 1991-01-11 |
ES2045762T3 (en) | 1994-01-16 |
EP0408097B1 (en) | 1993-09-01 |
PT94631B (en) | 1996-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse | ||
ST | Notification of lapse | ||
CA | Change of address |