CH203879A - Process for the preparation of a water-soluble monoazo dye. - Google Patents

Process for the preparation of a water-soluble monoazo dye.

Info

Publication number
CH203879A
CH203879A CH203879DA CH203879A CH 203879 A CH203879 A CH 203879A CH 203879D A CH203879D A CH 203879DA CH 203879 A CH203879 A CH 203879A
Authority
CH
Switzerland
Prior art keywords
sep
water
preparation
monoazo dye
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 CH203879A publication Critical patent/CH203879A/en

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
    • C09B29/24—Monoazo dyes prepared by diazotising and coupling from coupling components containing both hydroxyl and amino directing groups
    • C09B29/28—Amino naphthols
    • C09B29/30—Amino naphtholsulfonic acid

Landscapes

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

Description

  

  Verfahren zur     Herstellung    eines wasserlöslichen     Nonoazofarbstoffes.     
EMI0001.0003     
  
    Gegenstand <SEP> des <SEP> vorliegenden <SEP> Zusatz  patentes <SEP> ist <SEP> ein <SEP> Verfahren <SEP> zur <SEP> Hens@tellung
<tb>  eines <SEP> wasserlöslichen <SEP> Monoazofarbstoffes,
<tb>  welches <SEP> dadurch <SEP> gekennzeichnet <SEP> ist, <SEP> dass <SEP> man
<tb>  monodiazotierte <SEP> 2-u'lhethyl-1,4-diaminobenzol  6-sulfonsäure <SEP> in <SEP> alkalischem <SEP> Medium <SEP> mit
<tb>  2 <SEP> - <SEP> Phenydamino <SEP> - <SEP> 8 <SEP> - <SEP> oxynaphtha1in-:0-sulfon  säure <SEP> kuppelt.
<tb>  



  <I>Beispiel:</I>
<tb>  20,2 <SEP> Gewiohtsteile <SEP> 2-#Methyl-1,4-däamino  benzol-6-sulfonsäure <SEP> werden <SEP> alis <SEP> Natriumsalz
<tb>  in <SEP> etwa <SEP> 100 <SEP> Volumteilen <SEP> Wasser <SEP> mit,6,9 <SEP> Ge  wichtsteilen <SEP> Natäumnitrit <SEP> .gelöst. <SEP> Diese <SEP> Lö  sung <SEP> lässt <SEP> man <SEP> bei <SEP> <B>0-10'C</B> <SEP> zu <SEP> 1,5 <SEP> Volum  teilen <SEP> .roher <SEP> .Salzsäure <SEP> und <SEP> Es <SEP> langsam <SEP> zu  laufen.

   <SEP> Die <SEP> erhaltene <SEP> iSuspension <SEP> der <SEP> D.iazo  verbindung <SEP> setzt <SEP> man <SEP> dann <SEP> unter <SEP> Rühren
<tb>  und <SEP> ,guter <SEP> Kühlung <SEP> in <SEP> kleinen <SEP> Portionen <SEP> zu
<tb>  einer <SEP> Lösung <SEP> von <SEP> 32 <SEP> Gewichtsteilen <SEP> 2-Phe  nylamino-8-ogynap@hth@aIin-6-sulfonsäure <SEP> in
<tb>  Gegenwart <SEP> von <SEP> 3,8 <SEP> Gewichtsteilen <SEP> NaIrium-            oarbonat    in etwa 200     Volumteilen;

          Wasser.     Während der     Kupplung    fügt man     allmählich     100     Gewichtsteile        Natrium-ohloTid    zu.     Das          ausgeschiedene    Produkt wird abgesaugt und       getrocknet.     



  Es     stellt        ein        dunkelbraunes    Pulver dar,  das     Leder        in.    blaustichig braunen Tönen     ein-          färbt.  



  Process for the preparation of a water-soluble nonoazo dye.
EMI0001.0003
  
    The subject <SEP> of the <SEP> present <SEP> additional patent <SEP> is <SEP> a <SEP> procedure <SEP> for <SEP> handling
<tb> of a <SEP> water-soluble <SEP> monoazo dye,
<tb> which <SEP> is characterized by <SEP> <SEP>, <SEP> that <SEP> man
<tb> monodiazotized <SEP> 2-u'lhethyl-1,4-diaminobenzene 6-sulfonic acid <SEP> in <SEP> alkaline <SEP> medium <SEP> with
<tb> 2 <SEP> - <SEP> Phenydamino <SEP> - <SEP> 8 <SEP> - <SEP> oxynaphtha1in-: 0-sulfonic acid <SEP> couples.
<tb>



  <I> Example: </I>
<tb> 20.2 <SEP> parts by weight <SEP> 2- # methyl-1,4-däaminobenzene-6-sulfonic acid <SEP> are <SEP> as <SEP> sodium salt
<tb> in <SEP> about <SEP> 100 <SEP> parts by volume <SEP> water <SEP> with, 6.9 <SEP> parts by weight <SEP> sodium nitrite <SEP>. <SEP> This <SEP> solution <SEP> allows <SEP> to <SEP> at <SEP> <B> 0-10'C </B> <SEP> to <SEP> 1.5 <SEP> volume share <SEP> .roher <SEP>. hydrochloric acid <SEP> and <SEP> it <SEP> to run slowly <SEP>.

   <SEP> The <SEP> received <SEP> iSuspension <SEP> of the <SEP> D.iazo connection <SEP> set <SEP>, <SEP> then <SEP> under <SEP> stir
<tb> and <SEP>, good <SEP> cooling <SEP> in <SEP> small <SEP> portions <SEP> too
<tb> of a <SEP> solution <SEP> of <SEP> 32 <SEP> parts by weight <SEP> 2-phenylamino-8-ogynap @ hth @ aIin-6-sulfonic acid <SEP> in
<tb> Presence <SEP> of <SEP> 3.8 <SEP> parts by weight <SEP> sodium carbonate in about 200 parts by volume;

          Water. During the coupling, 100 parts by weight of sodium ohloTide are gradually added. The precipitated product is filtered off with suction and dried.



  It is a dark brown powder that colors leather in blue-tinged brown tones.

Claims (1)

EMI0001.0021 PATENTANSPRUCH: <tb> Verfahren <SEP> :zur <SEP> Rerstellung <SEP> eines <SEP> wasser lösllächen <SEP> Monoazofarbstoffes" <SEP> da@durch <SEP> ge kennzeichnet"dass <SEP> man <SEP> monodiazotierte <SEP> 2-Me thyl-1,4-di#aminobenzol-6-sulfonsäuxe <SEP> in <SEP> alka lischem <SEP> Medium <SEP> mit <SEP> 2-Phenylamiuo-8-ogy naphth,alin-6-sulfonsäure <SEP> kuppelt. <tb> Das <SEP> so <SEP> erharltene <SEP> Produkt <SEP> stellt <SEP> ein <tb> dunkelbraunes <SEP> Pulver <SEP> :dar, <SEP> das <SEP> Leder <SEP> in <SEP> blau stichig <SEP> braunen <SEP> Tönen <SEP> einfäTbt. EMI0001.0021 PATENT CLAIM: <tb> Method <SEP>: for the <SEP> preparation <SEP> of a <SEP> water-soluble surface <SEP> monoazo dye "<SEP> da @ denoted by <SEP>" that <SEP> one <SEP> monodiazotized <SEP > 2-methyl-1,4-di # aminobenzene-6-sulfonic acid <SEP> in <SEP> alkaline <SEP> medium <SEP> with <SEP> 2-phenylamiuo-8-ogy naphth, alin-6- sulfonic acid <SEP> couples. <tb> The <SEP> obtained <SEP> <SEP> product <SEP> sets <SEP> <tb> dark brown <SEP> powder <SEP>: <SEP> dyes the <SEP> leather <SEP> in <SEP> blue <SEP> <SEP> brown <SEP> tones <SEP>.
CH203879D 1936-09-05 1937-08-26 Process for the preparation of a water-soluble monoazo dye. CH203879A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE203879X 1936-09-05
CH200676T 1938-10-31

Publications (1)

Publication Number Publication Date
CH203879A true CH203879A (en) 1939-03-31

Family

ID=25723578

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203879D CH203879A (en) 1936-09-05 1937-08-26 Process for the preparation of a water-soluble monoazo dye.

Country Status (1)

Country Link
CH (1) CH203879A (en)

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