EP0349892A3 - Tanning method presenting a high chrome exhaustion of the tanning bath - Google Patents

Tanning method presenting a high chrome exhaustion of the tanning bath Download PDF

Info

Publication number
EP0349892A3
EP0349892A3 EP19890111743 EP89111743A EP0349892A3 EP 0349892 A3 EP0349892 A3 EP 0349892A3 EP 19890111743 EP19890111743 EP 19890111743 EP 89111743 A EP89111743 A EP 89111743A EP 0349892 A3 EP0349892 A3 EP 0349892A3
Authority
EP
European Patent Office
Prior art keywords
tanning
bath
high chrome
exhaustion
method presenting
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.)
Granted
Application number
EP19890111743
Other languages
German (de)
French (fr)
Other versions
EP0349892A2 (en
EP0349892B1 (en
Inventor
Hans-Herbert Dr. Friese
Emil Ruscheinsky
Rudolf Dr. Zauns
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6358054&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0349892(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0349892A2 publication Critical patent/EP0349892A2/en
Publication of EP0349892A3 publication Critical patent/EP0349892A3/en
Application granted granted Critical
Publication of EP0349892B1 publication Critical patent/EP0349892B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/04—Mineral tanning
    • C14C3/06—Mineral tanning using chromium compounds

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)

Abstract

Chromgerbung mit hoher Chromauszehrung der Gerbflotten wird dadurch erreicht daß man mit Ameisensäure und/oder Schwefelsäure gepickelte Blößen mit Chrom III-Salzen gerbt, die Gerbflotte mit Basifizierungsmitteln in Gegenwart von Aldehyd- und/oder Ketosäuren auf einen pH-Wert zwischen 3,6 und 4,3 vorabstumpft und anschließend mit Alkali-Aluminiumsilikaten auf einen pH-Wert zwischen 4,2 und 5,5 abstumpft. Chrome tanning with high chromium exhaustion of the tanning liquors is thereby achieved that pickled with formic acid and / or sulfuric acid Bare tanned with chrome III salts, the tanning liquor with Basifying agents in the presence of aldehyde and / or keto acids pre-blunted a pH value between 3.6 and 4.3 and then with Alkali aluminum silicates to a pH between 4.2 and 5.5 dulls.

EP89111743A 1988-07-06 1989-06-28 Tanning method presenting a high chrome exhaustion of the tanning bath Expired - Lifetime EP0349892B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822823A DE3822823A1 (en) 1988-07-06 1988-07-06 GERB PROCESSES OF HIGH CHROME PERFORMANCE OF GERBFLOTTEN
DE3822823 1988-07-06

Publications (3)

Publication Number Publication Date
EP0349892A2 EP0349892A2 (en) 1990-01-10
EP0349892A3 true EP0349892A3 (en) 1992-01-15
EP0349892B1 EP0349892B1 (en) 1994-09-21

Family

ID=6358054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111743A Expired - Lifetime EP0349892B1 (en) 1988-07-06 1989-06-28 Tanning method presenting a high chrome exhaustion of the tanning bath

Country Status (12)

Country Link
US (1) US4938779A (en)
EP (1) EP0349892B1 (en)
JP (1) JPH0270800A (en)
KR (1) KR0126916B1 (en)
AR (1) AR245505A1 (en)
AT (1) ATE111963T1 (en)
BR (1) BR8903305A (en)
DE (2) DE3822823A1 (en)
ES (1) ES2058406T3 (en)
FI (1) FI94149C (en)
MX (1) MX170321B (en)
TR (1) TR26613A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583697A2 (en) * 1992-08-14 1994-02-23 Hoechst Aktiengesellschaft Tanning process saving chrome and improved fixing of chrome
DE4323123A1 (en) * 1993-07-10 1995-01-12 Hoechst Ag Process for dyeing fur skins with oxidation dyes
EP2853604A1 (en) * 2013-09-30 2015-04-01 Rhodia Poliamida E Especialidades Ltda Tanning process
EP2853605A1 (en) * 2013-09-30 2015-04-01 Rhodia Poliamida E Especialidades Ltda Tanning process for obtaining leather
CN104109723B (en) * 2014-07-18 2016-02-03 四川德华皮革制造有限公司 A kind of preparation method of both fur and leather skin of formaldehydeless chrome-free tanning

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201054A1 (en) * 1985-05-10 1986-11-12 Hoechst Aktiengesellschaft Tanning process saving chrome

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272242A (en) * 1977-07-16 1981-06-09 Henkel Kommanditgesellschaft Auf Aktien Use of water-insoluble aluminosilicates in tanning process for the production of leather
DE2732217A1 (en) * 1977-07-16 1979-02-01 Henkel Kgaa USE OF FINE-PIECE WATER-INSOLUBLE ALKALIAL ALUMINUM SILICATES IN THE MANUFACTURING OF LEATHER

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201054A1 (en) * 1985-05-10 1986-11-12 Hoechst Aktiengesellschaft Tanning process saving chrome

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LEDER. Bd. 34, Juni 1983, DARMSTADT DE Seiten 89 - 93; H.H. FRIESE: 'VERWENDUNG VON NATRIUM-ALUMINIUMSILIKATEN BEI DER LEDERHERSTELLUNG' *

Also Published As

Publication number Publication date
FI893276A (en) 1990-01-07
TR26613A (en) 1994-04-05
US4938779A (en) 1990-07-03
EP0349892A2 (en) 1990-01-10
EP0349892B1 (en) 1994-09-21
FI94149B (en) 1995-04-13
DE3822823A1 (en) 1990-01-11
BR8903305A (en) 1990-02-13
KR900001862A (en) 1990-02-27
FI893276A0 (en) 1989-07-05
KR0126916B1 (en) 1997-12-26
MX170321B (en) 1993-08-16
JPH0270800A (en) 1990-03-09
DE58908384D1 (en) 1994-10-27
ATE111963T1 (en) 1994-10-15
ES2058406T3 (en) 1994-11-01
FI94149C (en) 1995-07-25
AR245505A1 (en) 1994-01-31

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