US1784768A - Walter - Google Patents
Walter Download PDFInfo
- Publication number
- US1784768A US1784768A US1784768DA US1784768A US 1784768 A US1784768 A US 1784768A US 1784768D A US1784768D A US 1784768DA US 1784768 A US1784768 A US 1784768A
- Authority
- US
- United States
- Prior art keywords
- parts
- printing
- leuco
- woolen
- fabrics
- 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
- 239000004744 fabric Substances 0.000 description 26
- 239000011780 sodium chloride Substances 0.000 description 22
- -1 ESTER SALTS Chemical class 0.000 description 20
- 238000000034 method Methods 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 12
- 210000002268 Wool Anatomy 0.000 description 10
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 10
- 239000002562 thickening agent Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 8
- 239000007800 oxidant agent Substances 0.000 description 8
- 238000010186 staining Methods 0.000 description 8
- 238000010025 steaming Methods 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- FYGDTMLNYKFZSV-MRCIVHHJSA-N Dextrin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)OC1O[C@@H]1[C@@H](CO)OC(O[C@@H]2[C@H](O[C@H](O)[C@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O FYGDTMLNYKFZSV-MRCIVHHJSA-N 0.000 description 4
- USHAGKDGDHPEEY-UHFFFAOYSA-L Potassium persulfate Chemical group [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 4
- 239000000975 dye Substances 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/22—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using vat dyestuffs including indigo
- D06P1/28—Esters of vat dyestuffs
-
- 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
- Y10S8/916—Natural fiber dyeing
- Y10S8/917—Wool or silk
Definitions
- My invention relates to a process for printing wool with ester salts of leuco-compounds of vat dyestuffs.
- ester salts well known in the practice are applied in a wide extent for printing cotton and for dyeing wool. But for printing wool they could not be used hitherto because there was not known a suitable oxidizing agent which develops sufficiently the dyeing of the ester salt but does not stain the nonprinted part of the woolen fabric.
- ester salts of leuco"- compounds of vat dyestufi's when printed on wool are developed in an excellent fastness, without staining the white "part of the woolen fabric, by means of solutions of persulfates mixed with strong acids as sulfuric or hydrochloric acid.
- a special advantage of my present process consists in the fact that the print pastes contain only a thickening agent besides the solution of ester salts of the leuco-compounds of vat dyestufi's'.
- Example 1 6.6'-diethoxy-thioindigo, parts 70 5.7.6 -trichIoro-indigo, parts 50 5.7.5.7 -tetrabromo-indigo, parts 80'
- the dyestufi prepared according to Exampletl of the German Patent No. 241,997, par s Parts 0! water 330 350 320 275 Parts of British gum 1:1 600 600 600 600 Parts 1000 1000 1000 1000 After having been printed and dried the goods are steamed for about half an hour in Emample 2 Woolen material is printed with the following print-paste:
- I claim 1 A process which comprises printing woolen fabrics with a printing paste containing a thickening agent and a solution of an ester-salt of a leuco compound of a vet dyestuff, drying and steaming the printed fabrics and treating them with a strong mineral acid in combination with a persulfate as oxidizing agent, this latter being admixed at any stage of the process and being incapable of staining the white parts of the woolen fabrics.
- a rocess which comprises printing woolen abrics with a printing paste containing a thickening agent and a solution of an ester salt of a leuco vat dyestufif, drying and steaming the printed fabrics and treating them with a solution containing a strong mineral acid and a persulfate as oxidizing agent incapable of staining the white parts of the woolen fabrics.
- a process which comprises printing woolen fabrics with a printing paste containing a thickening agent and a. solution of an ester salt of a leuco compound of a vat dyestulf, drying and steaming the printed fabrics and treating them with a solution containing 00 hydrochloric acid and a persulfate as oxidizing agent incapable of staining the white parts of the woolen fabrics.
- a process which comprises printing woolen fabrics with a printing paste containing a thickening agent and a solution of an ester salt of a leuco compound of a vat dyestuff, drying and steaming the printed fabrics. and treating them with a solution containing per liter from 12 to parts of hydrochloric acid 20 B. and from 10 to 20 parts of potassium persulfate, at a temperature of 50 to 70 C.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Description
Patented Dec. 9, 193
unnan WALTER TAUSSIG, OF FRANKFORT-ON-THE-MAIN, GERMANY, ASSIGNOR TO DURANJD @a HUGUENIN, OF BASEL, SWITZERLAND, A CORPORATION OF SWITZERLAND PROCESS FOR PRINTING WOOL WITH ESTER SALTS F LEUfiQ CQMPOUNDS VAT DYESTUFFS No Drawing. Application filed October 12, 1928, Serial No. 312,209, and in Germany Qctober 10, 1927.
My invention relates to a process for printing wool with ester salts of leuco-compounds of vat dyestuffs. These ester salts well known in the practice are applied in a wide extent for printing cotton and for dyeing wool. But for printing wool they could not be used hitherto because there was not known a suitable oxidizing agent which develops sufficiently the dyeing of the ester salt but does not stain the nonprinted part of the woolen fabric. I have now found that ester salts of leuco"- compounds of vat dyestufi's when printed on wool are developed in an excellent fastness, without staining the white "part of the woolen fabric, by means of solutions of persulfates mixed with strong acids as sulfuric or hydrochloric acid. A special advantage of my present process consists in the fact that the print pastes contain only a thickening agent besides the solution of ester salts of the leuco-compounds of vat dyestufi's'.
Only when such ester salts of leuco-compounds of vat dyestuffs are applied which are too difficult to be reoxidized, some persulfate is advantageously admixed already to the printing color.
In order to further illustrate my invention the following examples are given, the parts being by weight and all temperatures in Centigrade degrees. But I wish to be understood that I am not limited to the particular conditions nor to the specific products mentioned therein.
Example 1 6.6'-diethoxy-thioindigo, parts 70 5.7.6 -trichIoro-indigo, parts 50 5.7.5.7 -tetrabromo-indigo, parts 80' The dyestufi prepared according to Exampletl of the German Patent No. 241,997, par s Parts 0! water 330 350 320 275 Parts of British gum 1:1 600 600 600 600 Parts 1000 1000 1000 1000 After having been printed and dried the goods are steamed for about half an hour in Emample 2 Woolen material is printed with the following print-paste:
Sulfuric acid ester salt of the leuco-compound of 4.4-dichloro-6.6'-dimethyl thioindigo,
parts Parts of water Parts of British gum 1: 1 Parts of potassium persulfate Parts 1000 The printed fabric is developed as described in Example 1.
I claim 1. A process which comprises printing woolen fabrics with a printing paste containing a thickening agent and a solution of an ester-salt of a leuco compound of a vet dyestuff, drying and steaming the printed fabrics and treating them with a strong mineral acid in combination with a persulfate as oxidizing agent, this latter being admixed at any stage of the process and being incapable of staining the white parts of the woolen fabrics.
2. A rocess which comprises printing woolen abrics with a printing paste containing a thickening agent and a solution of an ester salt of a leuco vat dyestufif, drying and steaming the printed fabrics and treating them with a solution containing a strong mineral acid and a persulfate as oxidizing agent incapable of staining the white parts of the woolen fabrics.
3. A process which comprises printing woolen fabrics with a printing paste containing a thickening agent and a. solution of an ester salt of a leuco compound of a vat dyestulf, drying and steaming the printed fabrics and treating them with a solution containing 00 hydrochloric acid and a persulfate as oxidizing agent incapable of staining the white parts of the woolen fabrics.
4. A process which comprises printing woolen fabrics with a printing paste containing a thickening agent and a solution of an ester salt of a leuco compound of a vat dyestuff, drying and steaming the printed fabrics. and treating them with a solution containing per liter from 12 to parts of hydrochloric acid 20 B. and from 10 to 20 parts of potassium persulfate, at a temperature of 50 to 70 C.
In testimony whereof, I afiix my signature.
WALTER TAUSSIG.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1784768A true US1784768A (en) | 1930-12-09 |
Family
ID=3420510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1784768D Expired - Lifetime US1784768A (en) | Walter |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1784768A (en) |
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0
- US US1784768D patent/US1784768A/en not_active Expired - Lifetime
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