GB306448A - Improvements relating to mordant dyeing disazo dyestuffs - Google Patents
Improvements relating to mordant dyeing disazo dyestuffsInfo
- Publication number
- GB306448A GB306448A GB662/29A GB66229A GB306448A GB 306448 A GB306448 A GB 306448A GB 662/29 A GB662/29 A GB 662/29A GB 66229 A GB66229 A GB 66229A GB 306448 A GB306448 A GB 306448A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- naphthylamine
- mordant dyeing
- dyestuffs
- sulphonic acid
- 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
- C09B31/061—Disazo dyes from a coupling component "C" containing a directive hydroxyl group containing acid groups, e.g. -CO2H, -SO3H, -PO3H2, -OSO3H, -OPO2H2; Salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
306,448. Geigy Soc. Anon., J. R. Feb. 20, 1928, [Convention date]. Disazo dyes for mordant dyeing are made by coupling a diazotized aminosulphonic acid of the benzene or naphthalene series (but without mordant dyeing groups) with a-naphthylamine or its 6- or 7-sulphonic acid, rediazotizing the aminoazo compound thus formed and coupling with an .aromatic o-hydroxycarboxylic acid of the benzene series. The chromium compounds may be used for printing. According to examples, the following dyestuffs are prepared ;-(1) 1 : 5-naphthylamine sulphonic acid # 1: 6-naphthylamine sulphonic acid # salicylic acid; (2) 1-naphthylamine-4: 7-disulphonic acid # 1 : 7-naphthylamine sulphonic acid # salicylic acid; and (3) 1-naphthylamine-4: 7-disulphonic acid # anaphthylamine # salicylic acid (or o- or mcresotinic acid). The first two dyestuffs give fast brown chromium prints. Specifications 8299/89 and 22641/91 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE306448X | 1928-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB306448A true GB306448A (en) | 1930-02-20 |
Family
ID=6121122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB662/29A Expired GB306448A (en) | 1928-02-20 | 1929-01-08 | Improvements relating to mordant dyeing disazo dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB306448A (en) |
-
1929
- 1929-01-08 GB GB662/29A patent/GB306448A/en not_active Expired
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