ES395914A1 - Monoazo red dyes for dyeing polyamides and differential dyeing of composite synthetic polyamides - Google Patents
Monoazo red dyes for dyeing polyamides and differential dyeing of composite synthetic polyamidesInfo
- Publication number
- ES395914A1 ES395914A1 ES395914A ES395914A ES395914A1 ES 395914 A1 ES395914 A1 ES 395914A1 ES 395914 A ES395914 A ES 395914A ES 395914 A ES395914 A ES 395914A ES 395914 A1 ES395914 A1 ES 395914A1
- Authority
- ES
- Spain
- Prior art keywords
- dyeing
- polyamides
- red dyes
- monoazo red
- differential
- 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
Landscapes
- Coloring (AREA)
Abstract
Method for preparing monoazo red dyes having the structure: **(See formula)** where R represents -Cl, -NO2 or -CH2 and M represents -H, -Na, -K or -NH4, which comprises reacting m- or p-phenylenediaminosulfonic acid with a benzoyl chloride, under neutral to weakly acidic conditions ; diazotize the amine intermediate thus formed; couple with Gamma acid, under weakly acidic conditions; and recovering the dye in the form of an alkali metal salt which, if desired, can be used as such or converted in the usual way to other salt forms, or to the free acid. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8013670A | 1970-10-12 | 1970-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES395914A1 true ES395914A1 (en) | 1974-09-16 |
Family
ID=22155482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES395914A Expired ES395914A1 (en) | 1970-10-12 | 1971-10-11 | Monoazo red dyes for dyeing polyamides and differential dyeing of composite synthetic polyamides |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE773810A (en) |
| DE (1) | DE2150823A1 (en) |
| ES (1) | ES395914A1 (en) |
| FR (1) | FR2111274A5 (en) |
| GB (1) | GB1362717A (en) |
| NL (1) | NL7114008A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958930A (en) * | 1972-10-30 | 1976-05-25 | E. I. Du Pont De Nemours & Company | Deep-dyed nylon fiber and dyed styling yarn |
| US4061627A (en) * | 1975-09-10 | 1977-12-06 | American Cyanamid Company | Bis-substituted naphthalene-azo phenyleneazo-stilbene-disulfonic and naphthalene-sulfonic acid |
| US4008320A (en) * | 1975-12-12 | 1977-02-15 | American Cyanamid Company | Amidophenyl-azo-naphthalenesulfonic complement inhibitors and method of use thereof |
-
1971
- 1971-10-11 ES ES395914A patent/ES395914A1/en not_active Expired
- 1971-10-11 GB GB4727871A patent/GB1362717A/en not_active Expired
- 1971-10-12 NL NL7114008A patent/NL7114008A/xx unknown
- 1971-10-12 DE DE19712150823 patent/DE2150823A1/en active Pending
- 1971-10-12 BE BE773810A patent/BE773810A/en not_active IP Right Cessation
- 1971-10-12 FR FR7136639A patent/FR2111274A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE773810A (en) | 1972-04-12 |
| FR2111274A5 (en) | 1972-06-02 |
| NL7114008A (en) | 1972-04-14 |
| DE2150823A1 (en) | 1972-06-22 |
| GB1362717A (en) | 1974-08-07 |
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