CH106699A - 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
CH106699A
CH106699A CH106699DA CH106699A CH 106699 A CH106699 A CH 106699A CH 106699D A CH106699D A CH 106699DA CH 106699 A CH106699 A CH 106699A
Authority
CH
Switzerland
Prior art keywords
cotton
red
brown
particularly suitable
production
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 CH106699A publication Critical patent/CH106699A/en

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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
    • C09B29/12—Monoazo dyes prepared by diazotising and coupling from coupling components containing hydroxy as the only directing group of the benzene series
    • C09B29/14—Hydroxy carboxylic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

  

      Zusatzpateiit    zum Hauptpatent     Nr.    94229.    Verfahren zur Herstellung eines für den     Chroindruck    auf Baumwolle besonders  geeigneten     Azofarbstoffes.       Es wurde gefunden,     dass    man durch<B>Kup-</B>  peln von     diazotierter        1-Oxy-2-,amino-4-benzol-          karbonsäure    mit     Resoreylsjure    einen     Azo-          fürbstoff    erhält, welcher bei dem Chrom  druck auf Baumwolle rotbraune Töne von  sehr guter     #Seifen-    und Lichtechtheit erzeugt.

    <I>Beispiel:</I>  <B>153</B> Teile     1-Oxy-2-amino-4-benzolkarbon-          säure    werden in<B>150</B> Teilen Salzsäure gelöst  und mit<B>69</B> Teilen     Natriumnitrit;    bei<B>0</B> bis  <B>5 ' C</B>     diazotiert.    Die teilweise in gelben Kri  stallen ausgeschiedene     Diazoverbindung        lässt     man in eine möglichst     künzentrierte    Lösung  von 154 Teilen     ss-Resorcylsäure    und<B>300</B> Tei  len Soda einfliessen. Unmittelbar darauf<B>fügt</B>  man 400 Teile-<B>30</B>     '/oige    Natronlauge zu, wo  durch die Kupplung beschleunigt wird.

   Der       uebildete    Farbstoff wird durch     Neutralisa-          t>          tion    mit Mineralsäuren     ausgefällt.    Nach dem       Abfiltrieren    wird derselbe     gepresst    und     ge-          troelmet.     



  Der neue Farbstoff löst sich in heissem    Wasser mit gelbroter Farbe, welche     naüli    Zu  satz von Soda. nach rotbraun umschlägt, in       konzentriert-er    Schwefelsäure löst er sieh mit  rotbrauner Farbe. Bei dem Chromdruck auf  Baumwolle erzeugt er volle     robbraune    Töne  von sehr guter     Was-eli-,    Koch- -und Chlor  echtheit und guter Lichtechtheit. Er färbt       vVolleaus    saurem Bade in gelbbraunen,     nach-          ühromiert    in vorzüglich     walk-    und     potting          ZD          ee,'hten    Bordeaux Tönen.



      Additional file to main patent No. 94229. Process for the production of an azo dye particularly suitable for chrome printing on cotton. It has been found that by coupling diazotized 1-oxy-2-, amino-4-benzene-carboxylic acid with resoreyl acid, an azo dye is obtained which, when the chrome is printed on cotton, produces red-brown tones very good # soap and lightfastness.

    <I> Example: </I> <B> 153 </B> parts of 1-oxy-2-amino-4-benzenecarboxylic acid are dissolved in <B> 150 </B> parts of hydrochloric acid and mixed with <B> 69 </B> parts of sodium nitrite; diazotized at <B> 0 </B> to <B> 5 'C </B>. The diazo compound, which is partially separated out in yellow crystals, is allowed to flow into a solution of 154 parts of β-resorcylic acid and <B> 300 </B> parts of soda, which is as concentrated as possible. Immediately afterwards <B> </B> one adds </B> 400 parts <B> 30 </B> '/ o sodium hydroxide solution, which is accelerated by the clutch.

   The dye formed is precipitated by neutralization with mineral acids. After being filtered off, it is pressed and drained.



  The new dye dissolves in hot water with a yellow-red color, which is usually the addition of soda. turns red-brown, in concentrated sulfuric acid it dissolves with red-brown color. With the chrome print on cotton, it produces full rob-brown tones of very good was-eli, cooking and chlorine fastness and good lightfastness. It colors the acidic bath in yellow-brown, later chromated in excellent walk and potting ZD ee, 'hten Bordeaux tones.

Claims (1)

PATENTANSPRIJCII'. Verfahren zur Herstellung g eines für den Chroradruck auf Baumwolle besonders geeig neten Azofarbstoffes, dadurch gekennzeich net, #dass diazotierte 1-Oxy-2-amino-4-benzo#l- k,arbonsü,ure mit Resorcy1säure gekuppelt wird,. PATENT APPRIJCII '. Process for the production of an azo dye which is particularly suitable for chroma printing on cotton, characterized in that diazotized 1-oxy-2-amino-4-benzo-carbonic acid is coupled with resorcyclic acid. Der neue Farbstoff löst sieh in heissem Wasser mit gel-broter Farbe, welche nach Zu satz. von Soda. nach rotbraun =schlägt, in konzentrierter S-all-w-eielsäur,9 löst er sieh mit rotbrauner Farbe. Bei dein Chramdruek auf Baumwolle erzeugt er volle rotbraiiiie Ti; The new dye dissolves in hot water with a yellow-red color, which after addition. of soda. after red-brown = beats, in concentrated S-all-w-eielic acid, 9 it dissolves with red-brown color. With your Chramdruek on cotton it produces full reddish brown ti; iie von sehr --,ufc-r Koch- und Chlor- Pelitlieit Lind niter Lichlechtheit. Er färbt Wollp saur ein Bade in navii- ,p,liromiert, in vor7ii,(,li#ell wiill#- und potting echten Bordenux Tiiiien. iie of very -, ufc-r cooking and chlorine pelitlieit and niter light badness. He dyes Wollp sour a bath in navii-, p, liromized, in vor7ii, (, li # ell wiill # - and potting real Bordenux Tiiiien.
CH106699D 1921-03-15 1923-06-07 Process for the production of an azo dye particularly suitable for chrome printing on cotton. CH106699A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH94229T 1921-03-15
CH106699T 1923-06-07

Publications (1)

Publication Number Publication Date
CH106699A true CH106699A (en) 1924-09-01

Family

ID=25704792

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106699D CH106699A (en) 1921-03-15 1923-06-07 Process for the production of an azo dye particularly suitable for chrome printing on cotton.

Country Status (1)

Country Link
CH (1) CH106699A (en)

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