TR25083A - POSTS SELECTION PROCEDURE - Google Patents

POSTS SELECTION PROCEDURE

Info

Publication number
TR25083A
TR25083A TR90/0677A TR67790A TR25083A TR 25083 A TR25083 A TR 25083A TR 90/0677 A TR90/0677 A TR 90/0677A TR 67790 A TR67790 A TR 67790A TR 25083 A TR25083 A TR 25083A
Authority
TR
Turkey
Prior art keywords
hides
bath
tanning
water
tanning agent
Prior art date
Application number
TR90/0677A
Other languages
Turkish (tr)
Original Assignee
Toulouse Inst Nat Polytech
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 Toulouse Inst Nat Polytech filed Critical Toulouse Inst Nat Polytech
Publication of TR25083A publication Critical patent/TR25083A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C9/00Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
    • C14C9/04Fixing tanning agents in the leather
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/04Mineral tanning
    • C14C3/06Mineral tanning using chromium compounds
    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/04Mineral 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)
  • 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)

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.
TR90/0677A 1989-07-10 1990-07-30 POSTS SELECTION PROCEDURE TR25083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8909655A FR2649413B1 (en) 1989-07-10 1989-07-10 SKIN TANNING PROCESS

Publications (1)

Publication Number Publication Date
TR25083A true TR25083A (en) 1992-11-01

Family

ID=9383885

Family Applications (1)

Application Number Title Priority Date Filing Date
TR90/0677A TR25083A (en) 1989-07-10 1990-07-30 POSTS SELECTION PROCEDURE

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)

Cited By (1)

* Cited by examiner, † Cited by third party
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

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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR2649413A1 (en) 1991-01-11
ATE93898T1 (en) 1993-09-15
PT94631B (en) 1996-01-31
EP0408097B1 (en) 1993-09-01
DE69003040D1 (en) 1993-10-07
CA2020548A1 (en) 1991-01-11
DD296506A5 (en) 1991-12-05
ES2045762T3 (en) 1994-01-16
KR910003119A (en) 1991-02-26
CS276444B6 (en) 1992-05-13
CN1049526A (en) 1991-02-27
YU131890A (en) 1992-07-20
BR9003194A (en) 1991-08-27
JPH03129000A (en) 1991-05-31
FR2649413B1 (en) 1993-05-28
PT94631A (en) 1991-03-20
EP0408097A1 (en) 1991-01-16
MA21899A1 (en) 1991-04-01

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