GB288983A - Process for the manufacture of azo dyestuffs capable of after treatment with metallic salts - Google Patents
Process for the manufacture of azo dyestuffs capable of after treatment with metallic saltsInfo
- Publication number
- GB288983A GB288983A GB11193/28A GB1119328A GB288983A GB 288983 A GB288983 A GB 288983A GB 11193/28 A GB11193/28 A GB 11193/28A GB 1119328 A GB1119328 A GB 1119328A GB 288983 A GB288983 A GB 288983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- fastness
- metallic salts
- coupling
- increased
- 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
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/06—Disazo dyes from a coupling component "C" containing a directive hydroxyl group
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
288,983. I. G. rarbenindustrie Akt.- Ges. April 16, 1927, [Convention, date]. Samples furnished. Azo dyes adapted for after-treatment with metallic salts, e.g. salts of copper or chromium, are produced in substance or on the fibre by coupling with an arylide of 2 : 3-oxynaphthoic acid a diazotized aminoazo compound obtained by coupling an o-oxydiazo compound or a substitution product thereof with a substituted or unsubstituted amino, none of the components containing sulphonic or carboxylic groups. The products yield dyeings fast to washing and to chlorine, the fastness being increased by the after-treatment. In an example cotton impregnated with the 2<1>-naphthylamide of 2: 3- oxynaphthoic acid is developed with a diazo solution of the dyestuff 2-aminophenol # aminohydroquinone dimethyl ether to obtain a deep black dyeing of which the fastness is increased by the after-treatment. Specification 203,032 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE288983X | 1927-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB288983A true GB288983A (en) | 1929-07-16 |
Family
ID=6059724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11193/28A Expired GB288983A (en) | 1927-04-16 | 1928-04-16 | Process for the manufacture of azo dyestuffs capable of after treatment with metallic salts |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB288983A (en) |
-
1928
- 1928-04-16 GB GB11193/28A patent/GB288983A/en not_active Expired
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