US591769A - Emil koster - Google Patents
Emil koster Download PDFInfo
- Publication number
- US591769A US591769A US591769DA US591769A US 591769 A US591769 A US 591769A US 591769D A US591769D A US 591769DA US 591769 A US591769 A US 591769A
- Authority
- US
- United States
- Prior art keywords
- leather
- koster
- emil
- treating
- chrome
- 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 - Lifetime
Links
- 239000010985 leather Substances 0.000 description 32
- WBTCZEPSIIFINA-UHFFFAOYSA-J Antimony potassium tartrate Chemical compound O.O.O.[K+].[K+].O1C(=O)C2O[Sb-]1(OC1=O)OC1C(C(=O)O1)O[Sb-]31OC(=O)C2O3 WBTCZEPSIIFINA-UHFFFAOYSA-J 0.000 description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 210000003491 Skin Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- VXMKYRQZQXVKGB-CWWHNZPOSA-N Tannin Chemical compound O([C@H]1[C@H]([C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)O[C@H]([C@H]2O)O1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 VXMKYRQZQXVKGB-CWWHNZPOSA-N 0.000 description 8
- 238000004043 dyeing Methods 0.000 description 8
- 235000018553 tannin Nutrition 0.000 description 8
- 229920001864 tannin Polymers 0.000 description 8
- 239000001648 tannin Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000003472 neutralizing Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 235000014145 Caesalpinia bonduc Nutrition 0.000 description 2
- 244000036978 Caesalpinia bonduc Species 0.000 description 2
- 235000009133 Caesalpinia coriaria Nutrition 0.000 description 2
- 235000005082 Caesalpinia paraguariensis Nutrition 0.000 description 2
- 241000283707 Capra Species 0.000 description 2
- 241000283898 Ovis Species 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
- Y10S8/93—Pretreatment before dyeing
Definitions
- the object of the present invention is to prepare chrome tanned leather in such a manner that it can be dyed by means of anilin. colors in all shades. This is mainly accomplished by neutralizing the chrome tanned leather and treating it with substances con taining tannin. For the purpose of obtaining a clear color it is advisable to give the leather an additional treatment with tartar emetic or tartar-emetic preparation.
- the leather that has been so treated can be dyed at once, but it is advisable to first treat it with tartar emetic in order to obtain clear colors-for chrome sheep and goat skins one gram of tartar emetic for three liters of fluid for each skin, for calfskins one and one-half to two grams for from four, five, to six liters, (according to the size of the skin,) and for oxhides six to ten grams of every ten to eighteen liters.
- the solution is used at 30 Celsius.
- the leather remains in the working barrel or vat for from five to six minutes.
- the treated skins are rinsed in clear water and are then dyed in a vat with the desired color.
Description
UNITED STATES PATENT OFFICE.
EMIL KOSTER, OF NEUMI INSTER, GERMANY, ASSIGNOR TO EDUARD AVELLIS, OF BERLIN, GERMANY.
PROCESS OF TREATING LEATHER PREPARATORY TO DYEING.
SPECIFICATION forming part of Letters Patent No. 591,769, dated October 12, 1897. Application filed August 8, 1896. Serial No. 602,195. (No specimens.)
T0 ctZZ whom it may concern:
Be it known that I, EMIL KosTER, a subject of the King of Prussia, German Emperor, residing at Neumiinster, Holstein, in the German Empire, have invented certain new and useful Improvements in Processes of Treating Leather Preparatory to Dyeing, of which the following is a specification.
The object of the present invention is to prepare chrome tanned leather in such a manner that it can be dyed by means of anilin. colors in all shades. This is mainly accomplished by neutralizing the chrome tanned leather and treating it with substances con taining tannin. For the purpose of obtaining a clear color it is advisable to give the leather an additional treatment with tartar emetic or tartar-emetic preparation.
In practice the process is carried out as follows: About two hundred pounds of chrome leather are treated with six pounds of precipitated chalk and four pounds of common commercial salt stirred into about one hundred quarts of water, and in this solution the leather is washed for about one-quarter of an hour, until all acid has been removed. This can be ascertained by means of litmus-paper. The leather is then washed in water to remove the chalk. The leather that has thus been neutralized is then treated with substances containing tannin. In case divi-divi is used I prefer to use one pound of tanning substance to one hundred pounds of leather, the tanning substance being used as a solution of from 1 to 2 Baum. For lighter shades weaker solutions are used. The leather remains in this solution for about half an hour, until the surface is properly colored.
The leather that has been so treated can be dyed at once, but it is advisable to first treat it with tartar emetic in order to obtain clear colors-for chrome sheep and goat skins one gram of tartar emetic for three liters of fluid for each skin, for calfskins one and one-half to two grams for from four, five, to six liters, (according to the size of the skin,) and for oxhides six to ten grams of every ten to eighteen liters.
The solution is used at 30 Celsius. The leather remains in the working barrel or vat for from five to six minutes. The treated skins are rinsed in clear water and are then dyed in a vat with the desired color. I
Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:
1. The process of preparing acid chrome leather for dyeing consisting in neutralizing the skins, with a solution of chalk and salt, then washing in water to remove the chalk,
then treating them with substances containing tannin, and then treating them with tartar emetic, substantially as herein set forth.
2. The process of treating chrome leather for dyeing, consisting in neutralizing the leather, then treating it with substances containing tannin and then treating it with tar tar emetic, substantially as herein shown and described.
In witness whereof I have hereunto set my hand in presence of two witnesses.
EIWIIL KOSTER.
Witnesses PERREGRINE VARNALS, KATE STYLES.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US591769A true US591769A (en) | 1897-10-12 |
Family
ID=2660424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US591769D Expired - Lifetime US591769A (en) | Emil koster |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US591769A (en) |
-
0
- US US591769D patent/US591769A/en not_active Expired - Lifetime
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