GB925997A - New chromium and cobalt complexes of monoazo dyestuffs of the benzene-azo-pyrazolone series and their manufacture and use - Google Patents
New chromium and cobalt complexes of monoazo dyestuffs of the benzene-azo-pyrazolone series and their manufacture and useInfo
- Publication number
- GB925997A GB925997A GB2589360D GB2589360D GB925997A GB 925997 A GB925997 A GB 925997A GB 2589360 D GB2589360 D GB 2589360D GB 2589360 D GB2589360 D GB 2589360D GB 925997 A GB925997 A GB 925997A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- azo
- benzene
- chromium
- residue
- 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
- C09B45/00—Complex metal compounds of azo dyes
- C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
- C09B45/14—Monoazo compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises 1,2-chromium or -cobalt complexes of monoazo dyes which contain at least one sulphonic acid group and are of formula <FORM:0925997/IV(a)/1> wherein R is a benzene residue which is free from sulphonic and carboxylic acid groups and contains the -OH group in o-position to the azo group and Pz is the residue of a 1-aryl-5-pyrazolone bound to the azo group in the 4-position and containing in the 3-position a methyl or carboxyl group and of which the aryl residue contains two 6-membered rings and at least one sulphonic acid group. The complexes are prepared by treating a dye of the above formula or containing an o-alkoxy or -acyloxy group instead of hydroxy in R with a chromium- or cobalt-yielding agent under conditions such that a 1:2-complex is obtained. Conventional metallization procedures are used. The dyes may be used to colour silk, leather, polyamides, polyurethanes and particularly wool in yellow, red, brown and bordeaux shades. Examples are given. Specification 424,625 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH7995159A CH379028A (en) | 1959-10-28 | 1959-10-28 | Process for the production of new metal-containing azo dyes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB925997A true GB925997A (en) | 1963-05-15 |
Family
ID=4537540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2589360D Expired GB925997A (en) | 1959-10-28 | 1960-10-19 | New chromium and cobalt complexes of monoazo dyestuffs of the benzene-azo-pyrazolone series and their manufacture and use |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH379028A (en) |
| GB (1) | GB925997A (en) |
-
1959
- 1959-10-28 CH CH7995159A patent/CH379028A/en unknown
-
1960
- 1960-10-19 GB GB2589360D patent/GB925997A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH379028A (en) | 1964-06-30 |
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