GB1441823A - Tetrakisazo dyestuffs for dyeing leather - Google Patents
Tetrakisazo dyestuffs for dyeing leatherInfo
- Publication number
- GB1441823A GB1441823A GB1751273A GB1751273A GB1441823A GB 1441823 A GB1441823 A GB 1441823A GB 1751273 A GB1751273 A GB 1751273A GB 1751273 A GB1751273 A GB 1751273A GB 1441823 A GB1441823 A GB 1441823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diazotised
- tetrakisazo
- compounds
- dyes
- resulting
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
Abstract
Tetrakisazo dyes of the formula (I) <IMAGE> in which R1, R2, R3, R4, R5, R6, n, A, B, C, D, E and X are defined in Claim 1, are prepared. These dyes can be present as mixtures and are obtained by coupling suitable diazotised disazo compounds which are obtained by known methods onto naphthylaminesulphonic acids, resulting in trisazo compounds, diazotisation of the primary amino group, resulting in diazotised trisazo compounds, and finally by coupling these diazotised trisazo compounds onto a hydroxy- or amino-substituted benzene. These tetrakisazo dyes are suitable in particular for dyeing or printing leather in black shades.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1751273A GB1441823A (en) | 1973-04-11 | 1973-04-11 | Tetrakisazo dyestuffs for dyeing leather |
FR7412639A FR2225485B1 (en) | 1973-04-11 | 1974-04-10 | |
IT2123274A IT1009803B (en) | 1973-04-11 | 1974-04-10 | DYE MATERIALS PROCEDURE FOR THEIR PREPARATION AND LEATHER DYEING PROCESS |
JP49040630A JPS5069126A (en) | 1973-04-11 | 1974-04-10 | |
DE19742417943 DE2417943A1 (en) | 1973-04-11 | 1974-04-11 | TETRAKIS AZO COMPOUNDS, THE PROCESS FOR THEIR PRODUCTION AND THEIR USE FOR COLORING LEATHER |
CH511274A CH610920A5 (en) | 1973-04-11 | 1974-04-11 | Process for preparing tetrakisazo compounds and their use for dyeing or printing leather |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1751273A GB1441823A (en) | 1973-04-11 | 1973-04-11 | Tetrakisazo dyestuffs for dyeing leather |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1441823A true GB1441823A (en) | 1976-07-07 |
Family
ID=10096500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1751273A Expired GB1441823A (en) | 1973-04-11 | 1973-04-11 | Tetrakisazo dyestuffs for dyeing leather |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5069126A (en) |
CH (1) | CH610920A5 (en) |
DE (1) | DE2417943A1 (en) |
FR (1) | FR2225485B1 (en) |
GB (1) | GB1441823A (en) |
IT (1) | IT1009803B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3520389A1 (en) * | 1985-06-07 | 1986-12-11 | Bayer Ag, 5090 Leverkusen | TETRAQUIS AZO DYES |
-
1973
- 1973-04-11 GB GB1751273A patent/GB1441823A/en not_active Expired
-
1974
- 1974-04-10 JP JP49040630A patent/JPS5069126A/ja active Pending
- 1974-04-10 IT IT2123274A patent/IT1009803B/en active
- 1974-04-10 FR FR7412639A patent/FR2225485B1/fr not_active Expired
- 1974-04-11 DE DE19742417943 patent/DE2417943A1/en active Pending
- 1974-04-11 CH CH511274A patent/CH610920A5/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT1009803B (en) | 1976-12-20 |
FR2225485A1 (en) | 1974-11-08 |
DE2417943A1 (en) | 1974-10-31 |
JPS5069126A (en) | 1975-06-09 |
FR2225485B1 (en) | 1977-10-14 |
CH610920A5 (en) | 1979-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |