ES2016158A6 - Prodn. of chrome free soft leather - by treatment with oil, fat or fatty oil before tanning - Google Patents
Prodn. of chrome free soft leather - by treatment with oil, fat or fatty oil before tanningInfo
- Publication number
- ES2016158A6 ES2016158A6 ES8903073A ES8903073A ES2016158A6 ES 2016158 A6 ES2016158 A6 ES 2016158A6 ES 8903073 A ES8903073 A ES 8903073A ES 8903073 A ES8903073 A ES 8903073A ES 2016158 A6 ES2016158 A6 ES 2016158A6
- Authority
- ES
- Spain
- Prior art keywords
- leather
- tanning
- oil
- prodn
- fat
- 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
Links
- 239000010985 leather Substances 0.000 title abstract 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 2
- 239000010685 fatty oil Substances 0.000 title abstract 2
- 239000003925 fat Substances 0.000 title 1
- 239000003921 oil Substances 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000002480 mineral oil Substances 0.000 abstract 2
- 235000010446 mineral oil Nutrition 0.000 abstract 2
- 235000013311 vegetables Nutrition 0.000 abstract 1
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
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
In prodn. of chrome-free soft leather by tanning the skins with known vegetable and/or synthetic tanning agents, the limed, lime-free and bated skins are treated before tanning with 2-20 wt.%, w.r.t. the leather, of mineral oil(s), fat(s) or fatty oil(s) and/or mineral oil derivs. reactive with the NH2 gps. of the leather proeteins, at a temp. at which these agents are liq., but at least 20 deg.C below the shrinkage temp. of the leather. Treatmeht is for 0.5-7 h, depending on the thickness of the leather. ADVANTAGE - Environmentally harmful chrome wastes are avoided. Rapid bonding of the tanning agent, causing over-tanning of the leather surface, is prevented.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU884639A HU206395B (en) | 1988-09-09 | 1988-09-09 | Process for producing chrome-free soft leather |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2016158A6 true ES2016158A6 (en) | 1990-10-16 |
Family
ID=10968538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES8903073A Expired - Fee Related ES2016158A6 (en) | 1988-09-09 | 1989-09-08 | Prodn. of chrome free soft leather - by treatment with oil, fat or fatty oil before tanning |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3929366A1 (en) |
| ES (1) | ES2016158A6 (en) |
| HU (1) | HU206395B (en) |
| IT (1) | IT8921657A0 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1269406B (en) * | 1993-10-15 | 1997-04-01 | Giacomo Bandino | Mixed tanning process based on titanium |
| DE19906190A1 (en) * | 1999-02-15 | 2000-08-17 | Boehme Chem Fab Kg | Tanning process |
| DE102007036089A1 (en) * | 2007-08-01 | 2009-02-05 | Audi Ag | Method of treating a skin material |
| RS55791B1 (en) * | 2013-10-16 | 2017-08-31 | Balenciaga | Ecological tanning and dyeing process and product obtained |
-
1988
- 1988-09-09 HU HU884639A patent/HU206395B/en not_active IP Right Cessation
-
1989
- 1989-09-04 DE DE3929366A patent/DE3929366A1/en not_active Withdrawn
- 1989-09-08 ES ES8903073A patent/ES2016158A6/en not_active Expired - Fee Related
- 1989-09-08 IT IT8921657A patent/IT8921657A0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3929366A1 (en) | 1990-03-22 |
| IT8921657A0 (en) | 1989-09-08 |
| HU206395B (en) | 1992-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SA6 | Expiration date (snapshot 920101) |
Free format text: 2009-09-08 |
|
| FD1A | Patent lapsed |
Effective date: 20001009 |