FR2649413B1 - SKIN TANNING PROCESS - Google Patents

SKIN TANNING PROCESS

Info

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
Application number
FR8909655A
Other languages
French (fr)
Other versions
FR2649413A1 (en
Inventor
Francoise Silvestre
Christine Godawa
Michel Delmas
Antoine Gaset
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GACHES CHIMIE SA
MAZAMET CHAMBRE SYND IND CUIR
PATRONS MEGISSIERS CHAMBRE SYN
Institut National Polytechnique de Toulouse INPT
Original Assignee
GACHES CHIMIE SA
MAZAMET CHAMBRE SYND IND CUIR
PATRONS MEGISSIERS CHAMBRE SYN
Institut National Polytechnique de Toulouse INPT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GACHES CHIMIE SA, MAZAMET CHAMBRE SYND IND CUIR, PATRONS MEGISSIERS CHAMBRE SYN, Institut National Polytechnique de Toulouse INPT filed Critical GACHES CHIMIE SA
Priority to FR8909655A priority Critical patent/FR2649413B1/en
Priority to AT90201637T priority patent/ATE93898T1/en
Priority to DE90201637T priority patent/DE69003040D1/en
Priority to EP90201637A priority patent/EP0408097B1/en
Priority to ES90201637T priority patent/ES2045762T3/en
Priority to BR909003194A priority patent/BR9003194A/en
Priority to CA002020548A priority patent/CA2020548A1/en
Priority to MA22168A priority patent/MA21899A1/en
Priority to JP2180369A priority patent/JPH03129000A/en
Priority to PT94631A priority patent/PT94631B/en
Priority to CS903383A priority patent/CS276444B6/en
Priority to YU131890A priority patent/YU131890A/en
Priority to KR1019900010409A priority patent/KR910003119A/en
Priority to CN90104521A priority patent/CN1049526A/en
Priority to DD90342642A priority patent/DD296506A5/en
Priority to TR90/0677A priority patent/TR25083A/en
Publication of FR2649413A1 publication Critical patent/FR2649413A1/en
Application granted granted Critical
Publication of FR2649413B1 publication Critical patent/FR2649413B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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.
FR8909655A 1989-07-10 1989-07-10 SKIN TANNING PROCESS Expired - Fee Related FR2649413B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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

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ST Notification of lapse
ST Notification of lapse
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