GB428690A - Reduction products of the indigoid series - Google Patents
Reduction products of the indigoid seriesInfo
- Publication number
- GB428690A GB428690A GB3156433A GB3156433A GB428690A GB 428690 A GB428690 A GB 428690A GB 3156433 A GB3156433 A GB 3156433A GB 3156433 A GB3156433 A GB 3156433A GB 428690 A GB428690 A GB 428690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reduction products
- diethoxythioindigo
- reduction
- hydrosulphite
- product
- 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
- D06P1/228—Indigo
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
A stable reduction product of 6 : 6<1>-diethoxythioindigo is obtained by effecting the reduction with hydrosulphite or a formaldehydesulphoxylate in the absence of added alkali. The stability of the product is increased by the addition of a non-oxidizing acid. In an example, a printing paste is prepared by mixing a precipitate obtained by reducing 6 : 6<1>-diethoxythioindigo by means of sodium hydrosulphite at the boil, with potash, sodium formaldehyde sulphoxylate, glycerine and a thickener. Specification 352,283 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3156433A GB428690A (en) | 1933-11-13 | 1933-11-13 | Reduction products of the indigoid series |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3156433A GB428690A (en) | 1933-11-13 | 1933-11-13 | Reduction products of the indigoid series |
Publications (1)
Publication Number | Publication Date |
---|---|
GB428690A true GB428690A (en) | 1935-05-13 |
Family
ID=10324998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3156433A Expired GB428690A (en) | 1933-11-13 | 1933-11-13 | Reduction products of the indigoid series |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB428690A (en) |
-
1933
- 1933-11-13 GB GB3156433A patent/GB428690A/en not_active Expired
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