CO5221129A1 - LEATHER CURTIDE PROCEDURE WITH THE APPLICATION OF CARBON COMPOUNDS - Google Patents
LEATHER CURTIDE PROCEDURE WITH THE APPLICATION OF CARBON COMPOUNDSInfo
- Publication number
- CO5221129A1 CO5221129A1 CO00022813A CO00022813A CO5221129A1 CO 5221129 A1 CO5221129 A1 CO 5221129A1 CO 00022813 A CO00022813 A CO 00022813A CO 00022813 A CO00022813 A CO 00022813A CO 5221129 A1 CO5221129 A1 CO 5221129A1
- Authority
- CO
- Colombia
- Prior art keywords
- leather
- branched
- linear
- tanning
- added
- Prior art date
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
- C14C3/08—Chemical tanning by organic agents
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
Procedimiento de curtido de cueros, caracterizado porque se agregan a-hidroxi-cetonas a las pieles antes del curtido al cromo o al tanino, con o sin piclaje, en concentración de 0,1% a 30% preferentemente entre 0,5% a 10% de mayor preferencia entre 1% y 5% en peso del producto carbonílico con respecto al peso de la piel.Procedimiento de curtido de cueros de acuerdo con la reivindicación 1 caracterizado porque los compuestos carbonílicos se adicionan al propio baño acuoso de curtido, en su forma pura o en mezcla con componentes inertes, preferentemente puros o en solución acuosa.Procedimiento de curtido de cueros de acuerdo con la reivindicación 1, caracterizado porque las a-hidroxi-cetonas agregadas a las pieles antes del curtido al cromo o al tanino, con o sin piclaje, presentan la fórmula general (I)<EMI FILE="00022813_1" ID="1" IMF=JPEG >donde R puede ser un grupo alquilo lineal o ramificado o aun aromático y R1 y R2 pueden ser hidrógeno, un alquilo lineal o ramificado o aun aromático, como, por ejemplo, R1 = R2 = H y R = -CH2CH3 o , preferentemente, R1 = R2 = H y R = -CH3, o también la utilización de ß-hidroxi-cetonas que presentan la fórmula general (II)<EMI FILE="00022813_2" ID="2" IMF=JPEG >donde R puede ser un grupo alquilo lineal o ramificado o aun aromático como, por ejemplo R, R1 y = -CH3 y R3 = H, preferentemente R, R2 y R3 = -CH3 y R1 = H.Leather tanning process, characterized in that a-hydroxy ketones are added to the skins before tanning to chromium or tannin, with or without pecking, in a concentration of 0.1% to 30% preferably between 0.5% to 10 % more preferably between 1% and 5% by weight of the carbonyl product with respect to the weight of the skin. Leather tanning process according to claim 1 characterized in that the carbonyl compounds are added to the aqueous tanning bath itself, in its pure form or in mixture with inert components, preferably pure or in aqueous solution. Leather tanning process according to claim 1, characterized in that the a-hydroxy ketones added to the skins before tanning to chromium or tannin, with or without pecking, they have the general formula (I) <EMI FILE = "00022813_1" ID = "1" IMF = JPEG> where R can be a linear or branched or even aromatic alkyl group and R1 and R2 can be hydrogen, an alkyl linear or branched or an aromatic, such as R1 = R2 = H and R = -CH2CH3 or, preferably, R1 = R2 = H and R = -CH3, or also the use of β-hydroxy ketones having the general formula (II ) <EMI FILE = "00022813_2" ID = "2" MFI = JPEG> where R can be a linear or branched or even aromatic alkyl group, such as R, R1 y = -CH3 and R3 = H, preferably R, R2 and R3 = -CH3 and R1 = H.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI9901948-5A BR9901948B1 (en) | 1999-04-30 | 1999-04-30 | leather tanning process with carbonic compounds. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CO5221129A1 true CO5221129A1 (en) | 2002-11-28 |
Family
ID=4072497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CO00022813A CO5221129A1 (en) | 1999-04-30 | 2000-03-30 | LEATHER CURTIDE PROCEDURE WITH THE APPLICATION OF CARBON COMPOUNDS |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20020046426A1 (en) |
| EP (1) | EP1177321A1 (en) |
| CN (2) | CN1495276A (en) |
| AR (1) | AR022465A1 (en) |
| AU (1) | AU2271800A (en) |
| BR (1) | BR9901948B1 (en) |
| CO (1) | CO5221129A1 (en) |
| WO (1) | WO2000066793A1 (en) |
| ZA (1) | ZA200001356B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531915A (en) * | 2014-12-17 | 2015-04-22 | 广东菲安妮皮具股份有限公司 | Method for processing cowhide leather |
| CN106191335A (en) * | 2016-08-12 | 2016-12-07 | 桐乡市鑫诺皮草有限公司 | A kind of standard mink skin process for tanning |
| CN113399445A (en) * | 2021-07-14 | 2021-09-17 | 河北科技大学 | Method for efficiently leaching and repairing chromium-contaminated soil |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1666542A1 (en) * | 1989-04-11 | 1991-07-30 | Центральный научно-исследовательский институт кожевенно-обувной промышленности | Penetrator for leather dressing |
| DE4102545A1 (en) * | 1991-01-29 | 1992-07-30 | Basf Ag | METHOD FOR GELING, PRELIMINATING AND GIVING BARE AND FUR BLOSSES AND FOR LEAVING LEATHER AND FUR |
| DE4430290A1 (en) * | 1994-08-26 | 1996-02-29 | Basf Ag | Leather mfr. with reduced chemical consumption and amt. of waste liquor |
| BR9604733A (en) * | 1996-12-20 | 1998-09-08 | Khalil Ibrahim Chahine | Tanning process for animal skins free of sodium chloride and autobasically using acetaldol as a conditioning agent |
-
1999
- 1999-04-30 BR BRPI9901948-5A patent/BR9901948B1/en not_active IP Right Cessation
-
2000
- 2000-01-31 AR ARP000100417A patent/AR022465A1/en unknown
- 2000-02-02 WO PCT/BR2000/000006 patent/WO2000066793A1/en not_active Application Discontinuation
- 2000-02-02 AU AU22718/00A patent/AU2271800A/en not_active Abandoned
- 2000-02-02 CN CNA031484247A patent/CN1495276A/en active Pending
- 2000-02-02 EP EP00901424A patent/EP1177321A1/en not_active Withdrawn
- 2000-02-02 CN CN00806974.3A patent/CN1349564A/en active Pending
- 2000-03-16 ZA ZA200001356A patent/ZA200001356B/en unknown
- 2000-03-30 CO CO00022813A patent/CO5221129A1/en not_active Application Discontinuation
-
2001
- 2001-10-26 US US10/016,781 patent/US20020046426A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN1349564A (en) | 2002-05-15 |
| WO2000066793A1 (en) | 2000-11-09 |
| AU2271800A (en) | 2000-11-17 |
| BR9901948B1 (en) | 2008-11-18 |
| CN1495276A (en) | 2004-05-12 |
| BR9901948A (en) | 2000-10-31 |
| AR022465A1 (en) | 2002-09-04 |
| ZA200001356B (en) | 2000-10-17 |
| US20020046426A1 (en) | 2002-04-25 |
| EP1177321A1 (en) | 2002-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC | Application refused |