GB156663A - Disazo dye - Google Patents
Disazo dyeInfo
- Publication number
- GB156663A GB156663A GB651/21A GB65121A GB156663A GB 156663 A GB156663 A GB 156663A GB 651/21 A GB651/21 A GB 651/21A GB 65121 A GB65121 A GB 65121A GB 156663 A GB156663 A GB 156663A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diazotized
- phenylenediamine
- molecular part
- dye
- nitraniline
- 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
- C09B33/00—Disazo and polyazo dyes of the types A->K<-B, A->B->K<-C, or the like, prepared by diazotising and coupling
- C09B33/02—Disazo dyes
- C09B33/08—Disazo dyes in which the coupling component is a hydroxy-amino compound
- C09B33/10—Disazo dyes in which the coupling component is a hydroxy-amino compound in which the coupling component is an amino naphthol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
A primary disazo dye is obtained by coupling one molecular part of diazotized p-nitraniline or acet-p-phenylenediamine in acid solution with one molecular part of 1 : 8 : 4 - aminonaphthol sulphonic acid, and coupling a further molecular part of diazotized p-nitraniline or acet-p-phenylenediamine in alkaline solution with the resulting monoazo dye, and finally reducing or saponifying the product. The dye gives greenish-black shades on cotton, wool, silk, artificial silk, or mixed goods, and may be diazotized on the fibre and coupled with b -naphthol, m-phenylenediamine, m-toluylenediamine, resorcin, &c.ALSO:A primary disazo dye is obtained by coupling one molecular part of diazotized p-nitraniline or acet-p-phenylenediamine in acid solution with one molecular part of 1 : 8 : 4-aminonaphthol sulphonic acid, and coupling a further molecular part of diazotized p-nitraniline or acet-p-phenylenediamine in alkaline solution with the resulting monoazo dye, and finally reducing or saponifying the product. The dye gives greenish-black shades on cotton, wool, silk, artificial silk, or mixed goods, and may be diazotized on the fibre and coupled with b -naphthol, m-phenylenediamine, m-toluylenediamine, resorcin &c.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US156663XA | 1919-07-01 | 1919-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB156663A true GB156663A (en) | 1922-05-08 |
Family
ID=21772794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB651/21A Expired GB156663A (en) | 1919-07-01 | 1921-01-06 | Disazo dye |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB156663A (en) |
-
1921
- 1921-01-06 GB GB651/21A patent/GB156663A/en not_active Expired
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