GB603154A - Process for improving the fastness to light of dyeings or prints produced with vat dyestuffs or leuco ester salts thereof on fibres, fabrics, films and like-shaped structures composed of superpolyamides or superpolyurethanes - Google Patents
Process for improving the fastness to light of dyeings or prints produced with vat dyestuffs or leuco ester salts thereof on fibres, fabrics, films and like-shaped structures composed of superpolyamides or superpolyurethanesInfo
- Publication number
- GB603154A GB603154A GB732/45A GB73245A GB603154A GB 603154 A GB603154 A GB 603154A GB 732/45 A GB732/45 A GB 732/45A GB 73245 A GB73245 A GB 73245A GB 603154 A GB603154 A GB 603154A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indigo
- leuco
- thionaphthene
- bis
- superpolyamide
- 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
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
Fibres, threads, fabrics, films and like shaped structures composed of superpolyamides or superpolyurethanes which have been printed or dyed and developed in the usual manner with vat dyestuffs or their leuco ester salts, have their fastness to light improved by a subsequent steaming operation at superatmospheric pressure, for example at one or two atmospheres pressure. The usual steam development process for leuco ester salt dyeings, for example the method described in Specification 220,964, [Class 15 (ii)], may be replaced by a single steaming at a superatmospheric pressure. In examples: (1), (2) superpolyamide yarn is treated with 5 : 51-dichloro-7 : 71-dimethyl - 2 : 21 - bis - thionaphthene - indigo or dibromanthanthrone prepared as described in Specification 260,998, [Class 2 (iii)], and after soaping, rinsing and drying, is steamed at two atmospheres pressure; (3), (4) wetted superpolyamide yarn is treated with the sodium salt of the acid sulphuric ester of leuco-5 : 51-dichloro-7 : 71-dimethyl-2 : 21-bis-thionaphthene-indigo, acetic and formic acids, developed with either potassium dichromate, ammonium thiocyanate and sulphuric acid or sodium nitrite and sulphuric acid, and after soaping, rinsing and drying is steamed at two atmospheres pressure; (5), (6), (7), (8), (9) the leuco ester salts of leuco-dibromanthanthrone, 6-ethoxy-41-methyl-61-chloro-2 : 21-bis-thionaphthene - indigo, 4 : 41 - dimethyl - 6 : 61 - dichloro - 2 : 21 - bis - thionaphthene - indigo, 2 : 1 - naphthioindigo and the dye prepared from 4-chloro-1 : 2-naphthoxythiophene and 5-brom-a -isatinanilide by a similar method to that described in Specification 233,831, [Class 2 (iii)], are used to dye wetted superpolyamide yarn as in (3); (10) superpolyamide fabric is printed with a thickened paste containing the leuco ester salt of 5 : 51-dichloro-7 : 71-dimethyl-2 : 21-bis-thionaphthene - indigo, o : o 1 - dihydroxydiethyl sulphide, ammonium chlorate and ammonium vanadate and is then steamed at 1 1/2 atmospheres pressure, washed and soaped; (11), (12) the leuco ester salts of 6-ethoxy-41-methyl-61-chloro - 2 : 21 - bis - thionaphthene - indigo and 2 : 1-naphthio-indigo are similarly used. Specifications 186,057, 212,546, [both in Class 15 (ii)], and 534,085 also are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH603154X | 1944-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB603154A true GB603154A (en) | 1948-06-10 |
Family
ID=4522872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB732/45A Expired GB603154A (en) | 1944-01-10 | 1945-01-09 | Process for improving the fastness to light of dyeings or prints produced with vat dyestuffs or leuco ester salts thereof on fibres, fabrics, films and like-shaped structures composed of superpolyamides or superpolyurethanes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB603154A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541839A (en) * | 1949-07-22 | 1951-02-13 | Du Pont | Process for improving vat dyed nylon fibers |
| US3652199A (en) * | 1969-08-28 | 1972-03-28 | Du Pont | Process for drying polyamide fibers catonic dyes and zinc thiocyanate |
-
1945
- 1945-01-09 GB GB732/45A patent/GB603154A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2541839A (en) * | 1949-07-22 | 1951-02-13 | Du Pont | Process for improving vat dyed nylon fibers |
| US3652199A (en) * | 1969-08-28 | 1972-03-28 | Du Pont | Process for drying polyamide fibers catonic dyes and zinc thiocyanate |
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