GB411180A - The manufacture of water-insoluble azo dyestuffs - Google Patents
The manufacture of water-insoluble azo dyestuffsInfo
- Publication number
- GB411180A GB411180A GB3470432A GB3470432A GB411180A GB 411180 A GB411180 A GB 411180A GB 3470432 A GB3470432 A GB 3470432A GB 3470432 A GB3470432 A GB 3470432A GB 411180 A GB411180 A GB 411180A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carboxylic acid
- acid
- water
- methoxy
- insoluble azo
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
- C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
- C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Water-insoluble azo dyes are made in substance or on the fibre by coupling a diazotized aminopyrene which may be substituted by groups not inducing solubility in water with a coupling component, e.g. arylides of the following acids: 2 : 3-oxynaphthoic acid, 2 : 3-oxyanthracene-carboxylic acid (cf. Specification 367,907), 2 : 3-oxyphenanthrene-carboxylic acid (see Specification 353,538), 2 : 3-oxycarbazole-carboxylic acid (see Specification 343,164) and 2-hydroxy-a -benzocarbazole-3-carboxylic acid (Specification p 330,643, [Class 2 (iii)]). Grey to blue to violet to green shades fast to boiling and chlorine are obtained. In examples dyes from the following components are described: 1-aminopyrene, 2-amino-1-methoxypyrene and 1-methoxy-2-aminodibrompyrene; the anilide, m-nitraniline and b -naphthalide of 2 - 3-oxynaphthoic acid, the o - toluidide of 2 - oxyanthracene - 3 - carboxylic acid, the p-chloranilide of 2-hydroxycarbazole-3-carboxylic acid. 2 - Amino - 1 - methoxypyrene is made by sulphonating pyrene, fusing the resulting 1-sulphoric acid with alkali, methylating, nitrating and reducing. 1 - Methoxy - 2 - aminodibrompyrene is obtainable by brominating 1-methoxy-2-nitropyrene and reducing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3470432A GB411180A (en) | 1932-12-07 | 1932-12-07 | The manufacture of water-insoluble azo dyestuffs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3470432A GB411180A (en) | 1932-12-07 | 1932-12-07 | The manufacture of water-insoluble azo dyestuffs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB411180A true GB411180A (en) | 1934-06-07 |
Family
ID=10368918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3470432A Expired GB411180A (en) | 1932-12-07 | 1932-12-07 | The manufacture of water-insoluble azo dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB411180A (en) |
-
1932
- 1932-12-07 GB GB3470432A patent/GB411180A/en not_active Expired
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