DE515230C - Process for the preparation of water-insoluble azo dyes - Google Patents
Process for the preparation of water-insoluble azo dyesInfo
- Publication number
- DE515230C DE515230C DEI35451D DEI0035451D DE515230C DE 515230 C DE515230 C DE 515230C DE I35451 D DEI35451 D DE I35451D DE I0035451 D DEI0035451 D DE I0035451D DE 515230 C DE515230 C DE 515230C
- Authority
- DE
- Germany
- Prior art keywords
- water
- preparation
- azo dyes
- insoluble azo
- bordeaux
- 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
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/10—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group
- C09B29/18—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides
- C09B29/20—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group ortho-Hydroxy carbonamides of the naphthalene series
Description
Verfahren zur Darstellung von wasserunlöslichen Azofarbstoffen Es wurde gefunden, dafa man zu wertvollen, wasserunlöslichen Azofarbstoffen gelangt, wenn man 2-Amino-N-alliylpyrazolanthrone der allgemeinen Formel R -Alkyl oder Aralkylj mit den Aryliden der 2 # 3-Oxynaphthoesäure kuppelt. ' Die 2-Amino-N-alkylpyrazolanthrone, welche bisher zur Herstellung von Eisfarben noch nicht herangezogen wurden, ergeben dunkle braune Bordeauxnüancen, die zur Erzeugung von turkey chocolate Färbungen wertvoll sind. Gegenüber den bekannten Kombinationen aus P-Amino.anthrachinonen mit 2 # 3-Oxynaphthoesäurearyliden zeigen die vorliegenden Farbstoffe eine bessere Superoxydechtheit. Beispiel Gut ausgekochtes und getrocknetes Baumwollgarn wird in einer Lösung, welche 4,5 g z # 3-Oxynaphthoyl-.l-chlor-2-,anisidin, ; ccm Natronlauge 34.° B6 und 8 ccm Türkischrotöl im Liter enthält, imprägniert, gründlich abgewunden und in einer mit Natriumbicarbon.at neutralisierten Diazolösung, welche 2,65 g 2-Amino-N-äthylpyrazolanthron im Liter enthält, entwickelt, gespült und kochend geseift.Process for the preparation of water-insoluble azo dyes It has been found that valuable, water-insoluble azo dyes are obtained if 2-amino-N-alliylpyrazole anthrones of the general formula are used R -alkyl or aralkylj couples with the arylides of 2 # 3-oxynaphthoic acid. 'The 2-amino-N-alkylpyrazole anthrones, which have not yet been used for the production of ice colors, result in dark brown shades of Bordeaux, which are valuable for the production of turkey chocolate colors. Compared to the known combinations of P-amino.anthraquinones with 2 # 3-oxynaphthoic acid arylides, the present dyes show better superoxide fastness. Example Well-boiled and dried cotton yarn is in a solution containing 4.5 gz # 3-oxynaphthoyl-.l-chloro-2-, anisidine,; ccm sodium hydroxide solution 34 ° B6 and 8 ccm Turkish red oil per liter, impregnated, thoroughly wound and developed, rinsed and soaped at the boil in a diazo solution neutralized with sodium bicarbonate, which contains 2.65 g 2-amino-N-ethylpyrazolanthrone per liter .
Man erhält eine dunkle Bordeauxfärbung von guter Superoxydechtheit.A dark Bordeaux dyeing of good superoxide fastness is obtained.
In der gleichen Weise entsteht mit 2 # 3-Oxynaphthoyl-anilin ein dunkles
Bordeaux 2 # 3-Oxynaphthoyl-2-toluidin ein tiefes bräunliches Bordeaux 2 # 3-Oxynaphthoyl-2-phenetidin
ein dunkles bräunliches Bordeaux 2 . 3-Oxynaphthoyl-2-anisidin ein bräunliches Bordeaux
2. 3-Oxynaphthoyl-3-chloranilin ein tiefes bräunliches Bordeaux 2 # 3-Oxynaphthoyl-z-naphthylamin
ein dunkles Bordeaux 2 # 3-Oxynaphthoyl-2-naphthylamin ein dunkles braunes Bordeaux
2 . 3-Oxynaphthoylaminohydrochinondimethvläther ein tiefes Bordeaux
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI35451D DE515230C (en) | 1928-09-09 | 1928-09-09 | Process for the preparation of water-insoluble azo dyes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI35451D DE515230C (en) | 1928-09-09 | 1928-09-09 | Process for the preparation of water-insoluble azo dyes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE515230C true DE515230C (en) | 1931-01-02 |
Family
ID=7188991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEI35451D Expired DE515230C (en) | 1928-09-09 | 1928-09-09 | Process for the preparation of water-insoluble azo dyes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE515230C (en) |
-
1928
- 1928-09-09 DE DEI35451D patent/DE515230C/en not_active Expired
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