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CH94229A - Process for the production of an azo dye particularly suitable for chrome printing on cotton. - Google Patents

Process for the production of an azo dye particularly suitable for chrome printing on cotton.

Info

Publication number
CH94229A
CH94229A CH94229DA CH94229A CH 94229 A CH94229 A CH 94229A CH 94229D A CH94229D A CH 94229DA CH 94229 A CH94229 A CH 94229A
Authority
CH
Switzerland
Prior art keywords
cotton
chrome
production
particularly suitable
printing
Prior art date
Application number
Other languages
German (de)
Inventor
Gesellschaft Fuer Chemis Basel
Original Assignee
Chem Ind Basel
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 Chem Ind Basel filed Critical Chem Ind Basel
Publication of CH94229A publication Critical patent/CH94229A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/64—Natural or regenerated cellulose using mordant dyes or metallisable dyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Description

  

  Verfahren     zür    Herstellung eines für den Chromdruck auf Baumwolle  besonders geeigneten     Azofarbstoffes.       Es wurde gefunden,     dass        man    durch     Kup-          pelii    von     diazotierter        1-Amino-29-oxynaphtaliii-          4-sulfosäure    mit     Resorcylsäure    einen     Az'Ofarb-          stoff    erhält, welcher bei dem Chromdruck auf  Baumwolle tiefe     violettblatie    Töne von sehr  guter Seifen- und Lichtechtheit erzeugt.  



  <I>Beispiel:</I>  Die auf bekannte Art dargestellte     Diazo-          oxydsäure    aus<B>29319</B> Teilen     1-Amitio-2>-oxy-          ii#iplitaliii-4-stilfosäure    wird in möglichst kon  zentrierter Form mit einer konzentrierten  Lösung von 15,4 Teilen     ig-Resorcylsätire        und     <B>30</B> Teilen Soda vereinigt. Unmittelbar darauf  fügt     inan    40 Teile     Natrorilauge   <B>ä</B>     30#'i!o    hinzu,  worauf erst die Kupplung beginnt.

   Nach be  endigter Kombination, die längere Zeit in  Anspruch nimmt, wird der sehr leicht lösliche  Farbstoff     nait        Mirieralsäure    gefällt, filtriert,       gepresst    und getrocknet. Er stellt im trockenen  Zustand ein grünschwarzes Pulver dar, wel  ches sich in Wasser mit braunroter Farbe  löst. Auf Zusatz von     õda    schlägt die Farbe  nach violett um. In konzentrierter Schwefel-    säure löst sich der Farbstoff mit violetter"  Farbe.     Er    erzeugt beim     Chromdruck    auf  Baumwolle tiefe     violettblaue    Töne von sehr  guter Seifen- und Lichtechtheit.



  Process for the production of an azo dye particularly suitable for chrome printing on cotton. It has been found that by coupling diazotized 1-amino-29-oxynaphthalene-4-sulfonic acid with resorcylic acid, an azo dye is obtained which, when printed with chrome on cotton, produces deep violet shades of very good soap and lightfastness .



  <I> Example: </I> The diazoic acid prepared in a known manner from <B> 29319 </B> parts 1-Amitio-2> -oxy- ii # iplitaliii-4-stilfosäure is in the most concentrated form possible a concentrated solution of 15.4 parts ig resorcyl acid and <B> 30 </B> parts of soda combined. Immediately afterwards, add 40 parts of sodium hydroxide solution <B> ä </B> 30 # 'i! O, after which the coupling begins.

   After the combination has been completed, which takes a long time, the very easily soluble dye is precipitated with mirieral acid, filtered, pressed and dried. When dry, it is a greenish-black powder which dissolves in water with a brownish-red color. When õda is added, the color changes to purple. The dye dissolves in concentrated sulfuric acid with a violet "color. When printing chrome on cotton, it produces deep violet-blue tones of very good soap and lightfastness.

Claims (1)

<B>PATENTANSPRUCH:</B> Verfahren zur Herstellung eines für den Chromdruck auf Baumwolle besonders geeig neten Azofarbstoffes, dadurch gekennzeichnet, dass diazotierte 1-Amiiio-2-oxynaphtalin-4- sulfosäure, mit Resorey1säure gekuppelt wird, Der Farbstoff stellt im trockenen Zustand ein grünschwarzes Pulver dar, welches sich in Wasser mit braunroter Farbe last. Auf Zusatz von Soda schlägt die Farbe nach vio lett um. In konzentrierter Schwefelsäure löst sich der Farbstoff mit violetter Farbe. <B> PATENT CLAIM: </B> Process for the production of an azo dye particularly suitable for chrome printing on cotton, characterized in that diazotized 1-amino-2-oxynaphthalene-4-sulfonic acid is coupled with resorey1 acid. The dye is dry State a greenish-black powder, which in water is brown-red in color. When soda is added, the color changes to violet. In concentrated sulfuric acid, the dye dissolves with a purple color. Er erzeugt beim Chromdruck auf Baumwolle tiefe vi,olettblaue Töne von sehr guter Seifen- und Lichtechtheit. When printing chrome on cotton, it produces deep vi, olive blue tones of very good soap and lightfastness.
CH94229D 1921-03-15 1921-03-15 Process for the production of an azo dye particularly suitable for chrome printing on cotton. CH94229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH94229T 1921-03-15

Publications (1)

Publication Number Publication Date
CH94229A true CH94229A (en) 1922-05-01

Family

ID=4351825

Family Applications (1)

Application Number Title Priority Date Filing Date
CH94229D CH94229A (en) 1921-03-15 1921-03-15 Process for the production of an azo dye particularly suitable for chrome printing on cotton.

Country Status (1)

Country Link
CH (1) CH94229A (en)

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