GB1071590A - Azo dyestuffs - Google Patents
Azo dyestuffsInfo
- Publication number
- GB1071590A GB1071590A GB2211366A GB2211366A GB1071590A GB 1071590 A GB1071590 A GB 1071590A GB 2211366 A GB2211366 A GB 2211366A GB 2211366 A GB2211366 A GB 2211366A GB 1071590 A GB1071590 A GB 1071590A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkyl
- group
- dyes
- aryl
- hydrogen
- 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
- C09B27/00—Preparations in which the azo group is formed in any way other than by diazotising and coupling, e.g. oxidation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Mono-azo dyes of general formulae <FORM:1071590/C4-C5/1> in which R1 is hydrogen, alkyl or aryl and R2 is hydrogen, alkyl or aryl or a carbalkoxy group with 1-4 carbon atoms in the alkyl group and R1 and R2 together may form a benzene or a naphthalene nucleus which may be substituted and R3 is a radical of the naphthalene series in which the hydroxyl group is in a -position and the azo group in b -position of the naphthalene nucleus, the two formulae being tautomeric, are prepared by reacting a hydrazine compound of formula <FORM:1071590/C4-C5/2> with one mole of an o-quinine compound of the naphthalene series, all starting components being free from sulphonic and carboxylic acid groups. The dyes are prepared preferably in weakly to strong acid aqueous or aqueous organic media at room temperature to boiling temperature. The dyes give blue shades in nickel-modified polypropylene.ALSO:Metal modified polypropylene fibres are dyed with azo dyes of formulae <FORM:1071590/D1-D2/1> in which R1 is hydrogen, alkyl or aryl, and R2 is hydrogen, alkyl or aryl or a carbalkoxy group with 1-4 carbon atoms in the alkyl radical, and in which R1 and R2 may together form a benzene or naphthalene nucleus which may be substituted, R3 is a radical of the naphthalene series in p which the hydroxyl group is in the a -position and the azo group in the adjacent b -position the dyes being free from sulphonic and carboxylic acid groups. The above formulae are tantoneric. In example 1 nickel modified polypropylene is dyed at pH 5-6 whilst boiling for 1 hour giving a blue shade.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0046102 | 1965-05-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1071590A true GB1071590A (en) | 1967-06-07 |
Family
ID=7100841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2211366A Expired GB1071590A (en) | 1965-05-20 | 1966-05-18 | Azo dyestuffs |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE680874A (en) |
| GB (1) | GB1071590A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0316731A2 (en) * | 1987-11-17 | 1989-05-24 | Bayer Ag | Azo dyes from 2-hydrazinothiazole, their use in dyeing and printing fibre materials, and in sublimation transfer printing |
-
1966
- 1966-05-11 BE BE680874D patent/BE680874A/xx unknown
- 1966-05-18 GB GB2211366A patent/GB1071590A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0316731A2 (en) * | 1987-11-17 | 1989-05-24 | Bayer Ag | Azo dyes from 2-hydrazinothiazole, their use in dyeing and printing fibre materials, and in sublimation transfer printing |
| EP0316731A3 (en) * | 1987-11-17 | 1990-10-10 | Bayer Ag | Azo dyes from 2-hydrazinothiazole, their use in dyeing and printing fibre materials, and in sublimation transfer printing |
Also Published As
| Publication number | Publication date |
|---|---|
| BE680874A (en) | 1966-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1067300A (en) | Water-soluble reactive mono and disazo dyestuffs and processes for their manufacture | |
| GB1092057A (en) | Benzene-azo-benzene dyes, their production and use | |
| GB955313A (en) | Metal-containing reactive dyestuffs | |
| GB1147546A (en) | New basic azo dyestuffs and processes for their manufacture and use | |
| GB584609A (en) | Improvements in or relating to photographic light-sensitive materials | |
| GB1122169A (en) | Water-insoluble monoazo dyestuffs | |
| GB1071590A (en) | Azo dyestuffs | |
| GB1058378A (en) | Water-insoluble monoazo dyestuffs | |
| GB545806A (en) | Manufacture of new monoazo acid dyestuffs | |
| GB1425029A (en) | Azo dyes derived from thiophene diazo components | |
| GB1094792A (en) | Dyeing polyolefins with disperse triazine dyestuffs | |
| US3045004A (en) | Disazo dyes | |
| GB1005233A (en) | New monoazo dyestuffs | |
| GB1104537A (en) | 3-pyrazolyl-7-aryltriazolyl-coumarins and process for the preparation thereof | |
| GB1052002A (en) | ||
| GB1119326A (en) | Water-insoluble azo dyestuffs | |
| GB1003946A (en) | New monoazo dyes and processes for their production | |
| GB1037649A (en) | New water-insoluble azo pyrazolone dyestuffs | |
| GB1065468A (en) | Water-insoluble azo dyestuffs and process for their manufacture | |
| GB1062255A (en) | New disazo dyestuffs insoluble in water and their application to the colouration of hydrophobic fibres | |
| GB1117734A (en) | Basic azo dyestuffs and process for preparing them | |
| GB1012800A (en) | Improvements relating to naphthoxidines and their use as dyestuffs | |
| GB1149035A (en) | Water-insoluble monoazo dyestuffs and process for their preparation | |
| GB1037164A (en) | Water-insoluble monoazo-dyestuffs and process for preparing them | |
| GB959260A (en) | Water-insoluble monoazo dyestuffs |