CH128161A - Process for the preparation of a dye of the phenonaphtosafranine series. - Google Patents
Process for the preparation of a dye of the phenonaphtosafranine series.Info
- Publication number
- CH128161A CH128161A CH128161DA CH128161A CH 128161 A CH128161 A CH 128161A CH 128161D A CH128161D A CH 128161DA CH 128161 A CH128161 A CH 128161A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- dye
- preparation
- series
- phenonaphtosafranine
- Prior art date
Links
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- Coloring (AREA)
Description
Verfahren zur Darstellung eines Farbstoffes der Plienonaphtosafraninreihe. Es wurde gefunden, dass ein neuer wert voller Farbstoff entsteht, wenn man 1-Amino- 5-methyl-4-monoäthylanilin-2-sulfosäure mit 3-Diäthyl-13-methylisorosindnlin-1 # 6 . 12-tri- sulfosäure der Formel
EMI0001.0010
kondensiert.
Die entstandene Phenonaphto- safranintrisulfosäure enthält eine Sulfogruppe in Orthostellung zum Safraninatickstoff (-16- Stellung), wodurch die vorzügliche Alkali- echtheit der Färbungen bedingt wird.
Der neue Farbstoff ist ein dunkles Pul ver, das in Wasser mit blauer Farbe, in konzentrierter Schwefelsäure grasgrün. lös lich ist. <I>Beispiel:</I> 400 Teile einer wässerigen Lösung, ent haltend 33 Teile ('/E Molekül) des Mono natriumsalzes der 3-Diätliyl-13-methylisoros- indulin-1.6.12-trisulfosäure und 20 Teile Natriumacetat kristallisiert werden zusammen mit einer Lösung von 12 Teilen 1-Amino- 5-methyl-4-monoäthylanilin-2-sulfosäure in 80 Teilen Wasser und 3 Teilen Soda so lange gekocht, bis eine Probe, in konzentrierter Schwefelsäure gelöst, eine rein grüne Farbe zeigt.
Der Farbstoff fällt auf Koehsalzzusatz als kupferiges Pulver aus. Er färbt die ani inalische Faser aus saurem Bade licht- und alkaliecht blau. Seine Konstitution ist fol gende:
EMI0001.0031
Process for the preparation of a dye of the plienonaphtosafranine series. It has been found that a new valuable dye is created if 1-amino-5-methyl-4-monoethylaniline-2-sulfonic acid is mixed with 3-diethyl-13-methylisorosindnlin-1 # 6. 12-trisulfonic acid of the formula
EMI0001.0010
condensed.
The resulting phenonaphthosafranin trisulphonic acid contains a sulpho group in the ortho position to the safranina nitrogen (-16 position), which means that the dyeings are extremely fast to alkali.
The new dye is a dark powder that turns blue in water and grass green in concentrated sulfuric acid. is soluble. <I> Example: </I> 400 parts of an aqueous solution containing 33 parts (1 / E molecule) of the monosodium salt of 3-diethyl-13-methylisoros-indulin-1.6.12-trisulfonic acid and 20 parts of sodium acetate are crystallized boiled together with a solution of 12 parts of 1-amino-5-methyl-4-monoethylaniline-2-sulfonic acid in 80 parts of water and 3 parts of soda until a sample, dissolved in concentrated sulfuric acid, shows a pure green color.
The dye precipitates as a coppery powder on the addition of coal salt. It dyes the anal fibers from acidic bath light and alkali-like blue. Its constitution is as follows:
EMI0001.0031
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE128161X | 1926-02-13 | ||
CH124764T | 1928-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128161A true CH128161A (en) | 1928-10-16 |
Family
ID=25710333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128161D CH128161A (en) | 1926-02-13 | 1927-02-08 | Process for the preparation of a dye of the phenonaphtosafranine series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH128161A (en) |
-
1927
- 1927-02-08 CH CH128161D patent/CH128161A/en unknown
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