GB703446A - Tetrakisazo-dyestuffs - Google Patents
Tetrakisazo-dyestuffsInfo
- Publication number
- GB703446A GB703446A GB15421/51A GB1542151A GB703446A GB 703446 A GB703446 A GB 703446A GB 15421/51 A GB15421/51 A GB 15421/51A GB 1542151 A GB1542151 A GB 1542151A GB 703446 A GB703446 A GB 703446A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthol
- mols
- mol
- phenylene diamine
- 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
- C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
- C09B35/50—Tetrazo dyes
- C09B35/56—Tetrazo dyes of the type
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention comprises tetrakisazo dyestuffs of the formula <FORM:0703446/IV(c)/1> where one R is the residue of 1 : 3-diaminobenzene or a nuclear methyl or N-hydroxyethyl derivative thereof and the other R is the residue of a naphthylamine, naphthol or aminonaphthol free from carboxylic and sulphonic acid groups. These are made by coupling tetrazotized 4:4\sv-diaminodiphenylamine-2-sulphonic acid with 2 mols of an aminonaphtholsulphonic acid, tetrazotizing the product and coupling with one mol of each of the compounds corresponding to the residues R. The dyestuffs give dischargeable black or navy blue shades on cotton and rayon. In the examples, (1) the disazo dyestuff 4:4\sv-diamino-diphenylamine-2-sulphonic acid \sQ g -acid is tetrazotized and coupled with 1 mol of m-phenylene diamine and 1 mol of 1 : 8-aminonaphthol; (2) as in (1) using 1-naphthol as final component, (3) using as end components a mixture (2 mols in all) of m-phenylene diamine, m-toluylene diamine and 1-naphthol, (4) using as end components a mixture (2 mols in all) of N-hydroxyethyl-m-phenylene diamine and 1-naphthol. Other suitable components are mentioned. Specification 470,407 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE703446X | 1950-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB703446A true GB703446A (en) | 1954-02-03 |
Family
ID=6614398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15421/51A Expired GB703446A (en) | 1950-06-28 | 1951-06-28 | Tetrakisazo-dyestuffs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB703446A (en) |
-
1951
- 1951-06-28 GB GB15421/51A patent/GB703446A/en not_active Expired
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