CA2214446A1 - Process for finishing animal hides or pelts - Google Patents

Process for finishing animal hides or pelts

Info

Publication number
CA2214446A1
CA2214446A1 CA002214446A CA2214446A CA2214446A1 CA 2214446 A1 CA2214446 A1 CA 2214446A1 CA 002214446 A CA002214446 A CA 002214446A CA 2214446 A CA2214446 A CA 2214446A CA 2214446 A1 CA2214446 A1 CA 2214446A1
Authority
CA
Canada
Prior art keywords
pelts
leather
animal hides
pelt
waste water
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
CA002214446A
Other languages
French (fr)
Other versions
CA2214446C (en
Inventor
Helmut Geihsler
Eckhard Weidner
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19507572A external-priority patent/DE19507572A1/en
Application filed by Individual filed Critical Individual
Publication of CA2214446A1 publication Critical patent/CA2214446A1/en
Application granted granted Critical
Publication of CA2214446C publication Critical patent/CA2214446C/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
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/04—Soaking
    • 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
    • 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
    • C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

In order to make processes for finishing animal hides or pelts less labor-intensive and more environmentally compatible, a process is proposed in which, following a conventionally conducted soak, the animal hides or pelts are treated with a conventional tanning solution in which carbon dioxide has been dissolved under pressure. This makes it possible to reduce considerably the period of time usually required for the production of leather or pelts, since the treatment period is reduced markedly. Furthermore, it is possible in this way to combine conventional treatment steps and to conduct them in only one single treatment step. Instead of the 20 to 40 t of waste water per tonne of leather or pelt which are customary with conventional processes, only about 2 t of waste water per tonne of leather or pelt are now produced. Besides having a sharply reduced environmental impact, the proposed process is also significantly more economic than conventional processes, owing to the considerably shorter overall processing time.
CA002214446A 1995-03-03 1996-03-01 Process for finishing animal hides or pelts Expired - Fee Related CA2214446C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19507572.2 1995-03-03
DE19507572A DE19507572A1 (en) 1995-03-03 1995-03-03 Process for dressing animal hides or skins
PCT/EP1996/000882 WO1996027682A1 (en) 1995-03-03 1996-03-01 Process for preparing animal hides or pelts

Publications (2)

Publication Number Publication Date
CA2214446A1 true CA2214446A1 (en) 1996-09-12
CA2214446C CA2214446C (en) 2007-07-10

Family

ID=38254925

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002214446A Expired - Fee Related CA2214446C (en) 1995-03-03 1996-03-01 Process for finishing animal hides or pelts

Country Status (1)

Country Link
CA (1) CA2214446C (en)

Also Published As

Publication number Publication date
CA2214446C (en) 2007-07-10

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Legal Events

Date Code Title Description
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MKLA Lapsed

Effective date: 20140303