CH121565A - Process for the preparation of a monoazo dye. - Google Patents

Process for the preparation of a monoazo dye.

Info

Publication number
CH121565A
CH121565A CH121565DA CH121565A CH 121565 A CH121565 A CH 121565A CH 121565D A CH121565D A CH 121565DA CH 121565 A CH121565 A CH 121565A
Authority
CH
Switzerland
Prior art keywords
preparation
dye
monoazo dye
cellulose
sulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH121565A publication Critical patent/CH121565A/en

Links

Landscapes

  • Coloring (AREA)

Description

  

  Verfahren zur Darstellung eines     Honoazofarbstoffes.       Es wurde gefunden, dass man einen  neuen     Monoazofarbstoff,    welcher die wert  volle Eigenschaft besitzt,     Acidzellulose,        Zel-          luloseäther    und ihre     Umwandlungspro-          dukte    direkt in neutralem oder schwach sau  rem Bade anzufärben, dadurch erhält, dass  man die     Diazoverbindung    aus     5-hl*itro-2-          amino-benzyl-co-sulfosäure    mit     2#thylbenzyl-          a.nilin    kuppelt.

   Der so erhaltene Farbstoff  färbt     Acetatseide    in klaren roten Tönen  von sehr guter Licht-, Wasser- und Wasch  echtheit. Auf Wolle zieht er in sehr egalen  lichtechten roten Tönen auf.         Beispiel:          24.9    Gewichtsteile     5-Nitro-2-aminobeiizyl-          co-sulfosaures    Ammonium werden wie üblich       diazotiert    und mit. 211 Gewichtsteilen     Äthyl-          benzylanilin,    welches mit etwas Mineral  säure in Wasser gelöst ist, bei     -f-    5   ver  einigt.

   Nach beendeter Kupplung wird die    so erhaltene     Farbstoffsäure    isoliert und in  bekannter Weise in das in roten Blätt  chen kristallisierende     Natriumsalz    über  geführt.



  Process for the preparation of a honoazo dye. It has been found that a new monoazo dye, which has the valuable property of coloring acid cellulose, cellulose ethers and their conversion products directly in a neutral or slightly acidic bath, is obtained by making the diazo compound from 5-hectolitre of itro -2-amino-benzyl-co-sulfonic acid with 2 # thylbenzyl-a.niline couples.

   The dye thus obtained dyes acetate silk in clear red shades of very good light, water and wash fastness. It pulls on wool in very even, lightfast red tones. Example: 24.9 parts by weight of 5-nitro-2-aminobeiizyl- co-sulfonic acid ammonium are diazotized as usual and with. 211 parts by weight of ethyl benzylaniline, which is dissolved in water with some mineral acid, united at -f- 5.

   After coupling has ended, the dye acid thus obtained is isolated and passed in a known manner into the sodium salt which crystallizes in red leaves.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines direkt auf Acidylzellulose, Zellulöseäther und ihre Umwandlungsprodukte ziehenden Monoazo- farbstoffes, dadurch gekennzeichnet, dass man die Diazoverbindung aus 5-Nitro-2- amino-benzyl-co-sulfosäure mit Äthylbenzyl- a.nilin kuppelt. Der so erhaltene Farbstoff färbt Acetatseide in klaren roten Tönen von sehr guter Licht-, Wasser- und Wasch echtheit. PATENT CLAIM: Process for the preparation of a monoazo dye which draws directly on acidyl cellulose, cellulose ether and their conversion products, characterized in that the diazo compound of 5-nitro-2-amino-benzyl-co-sulfonic acid is coupled with ethylbenzyl-a.niline. The dye thus obtained dyes acetate silk in clear red shades of very good light, water and wash fastness. Auf Wolle zieht er in sehr egalen lichtechten roten Tönen auf. It pulls on wool in very even, lightfast red tones.
CH121565D 1925-02-13 1926-02-06 Process for the preparation of a monoazo dye. CH121565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE121565X 1925-02-13

Publications (1)

Publication Number Publication Date
CH121565A true CH121565A (en) 1927-07-01

Family

ID=5656973

Family Applications (1)

Application Number Title Priority Date Filing Date
CH121565D CH121565A (en) 1925-02-13 1926-02-06 Process for the preparation of a monoazo dye.

Country Status (1)

Country Link
CH (1) CH121565A (en)

Similar Documents

Publication Publication Date Title
CH121565A (en) Process for the preparation of a monoazo dye.
DE451435C (en) Process for the preparation of monoazo dyes
AT105357B (en) Process for producing insoluble azo dyes on fiber.
AT106016B (en) Process for the preparation of monoazo dyes.
CH122261A (en) Process for the preparation of a monoazo dye.
DE728886C (en) Process for the preparation of copper complex compounds of substantive azo dyes
AT109395B (en) Process for the preparation of trisazo dyes.
DE436365C (en) Process for producing insoluble azo dyes on fiber
AT107575B (en) Process for the preparation of monoazo dyes.
CH189041A (en) Process for the preparation of a monoazo dye.
CH128005A (en) Process for the preparation of the copper compound of a substantive azo dye.
CH201858A (en) Process for the preparation of an azo dye.
CH187603A (en) Process for the preparation of a chromable yellow azo dye.
CH208541A (en) Process for the preparation of a disazo dye.
CH196349A (en) Process for the preparation of a new chromable disazo dye.
CH209165A (en) Process for the preparation of a water-insoluble azo dye.
CH187604A (en) Process for the preparation of a chromable yellow azo dye.
CH218813A (en) Process for the preparation of a disazo dye.
CH205533A (en) Process for the preparation of an o-oxyazo dye.
CH220217A (en) Process for the production of a new azo dye.
CH128915A (en) Process for the preparation of the copper compound of a substantive azo dye.
CH191151A (en) Process for the preparation of a chromable monoazo dye.
CH154822A (en) Process for the preparation of an azo dye.
CH128997A (en) Process for the preparation of a lightfast yellow monoazo dye.
CH187605A (en) Process for the preparation of a chromable yellow azo dye.