FR2348976A1 - Leather resistant to calcium chloride - obtd. by double retanning, nourishing, waterproofing and treating with poly:ol - Google Patents

Leather resistant to calcium chloride - obtd. by double retanning, nourishing, waterproofing and treating with poly:ol

Info

Publication number
FR2348976A1
FR2348976A1 FR7612050A FR7612050A FR2348976A1 FR 2348976 A1 FR2348976 A1 FR 2348976A1 FR 7612050 A FR7612050 A FR 7612050A FR 7612050 A FR7612050 A FR 7612050A FR 2348976 A1 FR2348976 A1 FR 2348976A1
Authority
FR
France
Prior art keywords
leather
retanning
calcium chloride
obtd
nourishing
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
FR7612050A
Other languages
French (fr)
Other versions
FR2348976B1 (en
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.)
JALLATTE SA
Original Assignee
JALLATTE SA
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 JALLATTE SA filed Critical JALLATTE SA
Priority to FR7612050A priority Critical patent/FR2348976A1/en
Publication of FR2348976A1 publication Critical patent/FR2348976A1/en
Application granted granted Critical
Publication of FR2348976B1 publication Critical patent/FR2348976B1/fr
Granted 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

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

A process for making a leather resistant to prolonged contact with calcium chloride is described. After normal chrome tanning, the leather is re-tanned first with glutaraldehyde and then after neutralising in another bath with synthetic or plant tannins. In the course of the retanning the leather is nourished using a sulphited animal oil. The re-tanned leather is then impregnated using chromium stearatochloride, polyfluorane or aliminium stearate. A polyalcohol is then added followed by stirring after which the leather is curried, dried and finished in the usual manner. The leather obtained retanned with 5% glutaraldehyde and 12-16% tannins and treated as abovefinally using 1% polyalcohol has a resistance falling by 8%, compared with 40% for untreated leather, in a Bally penetrometer test using a specific CaCl2 soln. The leather is particularly used for making safety shoes e.g. for workers in mines.
FR7612050A 1976-04-23 1976-04-23 Leather resistant to calcium chloride - obtd. by double retanning, nourishing, waterproofing and treating with poly:ol Granted FR2348976A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7612050A FR2348976A1 (en) 1976-04-23 1976-04-23 Leather resistant to calcium chloride - obtd. by double retanning, nourishing, waterproofing and treating with poly:ol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7612050A FR2348976A1 (en) 1976-04-23 1976-04-23 Leather resistant to calcium chloride - obtd. by double retanning, nourishing, waterproofing and treating with poly:ol

Publications (2)

Publication Number Publication Date
FR2348976A1 true FR2348976A1 (en) 1977-11-18
FR2348976B1 FR2348976B1 (en) 1978-08-25

Family

ID=9172232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7612050A Granted FR2348976A1 (en) 1976-04-23 1976-04-23 Leather resistant to calcium chloride - obtd. by double retanning, nourishing, waterproofing and treating with poly:ol

Country Status (1)

Country Link
FR (1) FR2348976A1 (en)

Also Published As

Publication number Publication date
FR2348976B1 (en) 1978-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse