CH203875A - 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
CH203875A
CH203875A CH203875DA CH203875A CH 203875 A CH203875 A CH 203875A CH 203875D A CH203875D A CH 203875DA CH 203875 A CH203875 A CH 203875A
Authority
CH
Switzerland
Prior art keywords
sep
water
monoazo dye
preparation
soluble monoazo
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 CH203875A publication Critical patent/CH203875A/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     Monoazofarbstoffes.     
EMI0001.0002     
  
    Gegenstand <SEP> des <SEP> vorliegenden <SEP> Zusatz  patentes <SEP> ist <SEP> ein <SEP> Verfahren <SEP> zur <SEP> Herstellung
<tb>  eines <SEP> wasserlöslichen <SEP> Monoazofarbstoffes,
<tb>  welches <SEP> :dadumhgekennzeichnet <SEP> äst, <SEP> fdass <SEP> man
<tb>  monodiazotierte <SEP> 2-C:hlor-1,4-.diaminobenzol-,6  sulfonsäure <SEP> in <SEP> alkalischem <SEP> Medium <SEP> mit
<tb>  2 <SEP> - <SEP> Methylamimo <SEP> - <SEP> 8 <SEP> - <SEP> exynaphthasän <SEP> - <SEP> 6 <SEP> - <SEP> eulfon  säure <SEP> kuppelt.
<tb>  



  <I>Beispiel:</I>
<tb>  22,26 <SEP> Gewichtsteile <SEP> 2hChlor-1,4-:diamnno  benzol-6-sulfonsäuie <SEP> werden <SEP> als <SEP> Natrsumsalz
<tb>  in <SEP> etwa <SEP> 100 <SEP> Volumteilen <SEP> Wasser <SEP> mit <SEP> 6,9 <SEP> Ge  wichtsteilen <SEP> Natriumnätrit <SEP> :gelöst. <SEP> Diese <SEP> Ijö  ssung <SEP> dässt <SEP> man <SEP> bei <SEP> <B>0-10'C</B> <SEP> zu <SEP> 15 <SEP> Volum  teilen <SEP> roher <SEP> Salzsäure <SEP> und <SEP> Eis <SEP> langsam <SEP> zu  laufen. <SEP> Die <SEP> erhaltene <SEP> :Suspension <SEP> der <SEP> Diazo  vesbindung <SEP> setzt <SEP> man <SEP> dann <SEP> unter <SEP> Rühren
<tb>  und <SEP> gutem <SEP> Kühlung <SEP> in <SEP> kleinen <SEP> Porònen <SEP> <B>zu</B>
<tb>  einer <SEP> Lösung <SEP> von <SEP> 25,3 <SEP> Gewichtsteilen <SEP> 2-Me  thyJamiuo-:8-oxynaphthalin-6-sulfons:

  äuxe <SEP> in
<tb>  Gegenwart <SEP> von <SEP> 38 <SEP> Gewichtsteilen <SEP> Natrium-     
EMI0001.0003     
  
    oarbonat <SEP> in <SEP> etwa <SEP> 200 <SEP> Volumieilen <SEP> Wasser.
<tb>  Während <SEP> der <SEP> Kupplung <SEP> fügt <SEP> man <SEP> allmäh  lich <SEP> <B>100</B> <SEP> Gewselhtsteile <SEP> Natriumehlorid <SEP> zu.
<tb>  Dias <SEP> ausgeschiedene <SEP> Produkt <SEP> wird <SEP> abgesaugt
<tb>  und <SEP> getrocknet.
<tb>  



  Es <SEP> stellt <SEP> ein. <SEP> .braunes <SEP> Pulver <SEP> dar, <SEP> das
<tb>  Leder <SEP> in <SEP> braunen. <SEP> Tönen <SEP> einfärbt.



  Process for the preparation of a water-soluble monoazo dye.
EMI0001.0002
  
    The subject <SEP> of the <SEP> present <SEP> additional patent <SEP> is <SEP> a <SEP> process <SEP> for <SEP> production
<tb> of a <SEP> water-soluble <SEP> monoazo dye,
<tb> which <SEP>: denotes <SEP>, <SEP> for <SEP> man
<tb> monodiazotized <SEP> 2-C: chloro-1,4-diaminobenzene-, 6 sulfonic acid <SEP> in <SEP> alkaline <SEP> medium <SEP> with
<tb> 2 <SEP> - <SEP> Methylamimo <SEP> - <SEP> 8 <SEP> - <SEP> exynaphthasän <SEP> - <SEP> 6 <SEP> - <SEP> eulfonic acid <SEP> couples.
<tb>



  <I> Example: </I>
<tb> 22.26 <SEP> parts by weight <SEP> 2hChlor-1,4-: diamnno benzene-6-sulfonic acid <SEP> are <SEP> as <SEP> sodium salt
<tb> in <SEP> about <SEP> 100 <SEP> parts by volume <SEP> water <SEP> with <SEP> 6.9 <SEP> parts by weight <SEP> sodium nitrate <SEP>: dissolved. <SEP> This <SEP> Ijö ssung <SEP> allows <SEP> one <SEP> at <SEP> <B> 0-10'C </B> <SEP> to <SEP> 15 <SEP> volume < SEP> raw <SEP> hydrochloric acid <SEP> and <SEP> ice <SEP> slowly <SEP> to run. <SEP> The <SEP> received <SEP>: suspension <SEP> of the <SEP> diazo connection <SEP> <SEP>, <SEP> then <SEP> under <SEP> stirring
<tb> and <SEP> good <SEP> cooling <SEP> in <SEP> small <SEP> pores <SEP> <B> to </B>
<tb> of a <SEP> solution <SEP> of <SEP> 25.3 <SEP> parts by weight <SEP> 2-Me thyJamiuo-: 8-oxynaphthalene-6-sulfone:

  äuxe <SEP> in
<tb> Presence <SEP> of <SEP> 38 <SEP> parts by weight <SEP> sodium
EMI0001.0003
  
    Carbonate <SEP> in <SEP> about <SEP> 200 <SEP> volume <SEP> water.
<tb> During <SEP> the <SEP> coupling <SEP> <SEP> one <SEP> gradually adds <SEP> <B> 100 </B> <SEP> parts of <SEP> sodium chloride <SEP>.
<tb> Slides <SEP> excreted <SEP> product <SEP> is <SEP> sucked off
<tb> and <SEP> dried.
<tb>



  It <SEP> sets <SEP>. <SEP> .brown <SEP> powder <SEP> represents, <SEP> that
<tb> leather <SEP> in <SEP> brown. <SEP> tones <SEP> colors.

Claims (1)

EMI0001.0004 PATENTANSPRUCH: <tb> Verfahren <SEP> zur <SEP> Herstellung <SEP> eines <SEP> wasser löali.:chen <SEP> Monoazofarbsstoffes, <SEP> dadurch <SEP> ge kennzeichnet, <SEP> dass <SEP> man <SEP> monodiazotierte <tb> 2-C@h@lor-1,4-@daminobenzol-6-sulfonsäure <SEP> in <tb> alkalischem <SEP> Medium <SEP> mit <SEP> 2=Methydamino-8 oxynaphthalin-6-s < ulfoneäure <SEP> kuppelt. <tb> Das <SEP> so <SEP> erhaltene <SEP> Produkt <SEP> stellt <SEP> ein <SEP> brau nes <SEP> Pulver <SEP> dar, <SEP> das <SEP> Leder <SEP> mit <SEP> braunen <SEP> Tönen <tb> einfärbt. EMI0001.0004 PATENT CLAIM: <tb> Process <SEP> for <SEP> production <SEP> of a <SEP> water-soluble.: chen <SEP> monoazo dye, <SEP> marked with <SEP>, <SEP> that <SEP> man <SEP> monodiazotized <tb> 2-C @ h @ lor-1,4- @ daminobenzene-6-sulfonic acid <SEP> in <tb> alkaline <SEP> medium <SEP> with <SEP> 2 = methydamino-8 oxynaphthalene-6-s <ulfonic acid <SEP> couples. <tb> The <SEP> <SEP> obtained <SEP> product <SEP> represents <SEP> a <SEP> brown <SEP> powder <SEP>, <SEP> the <SEP> leather <SEP> with <SEP> brown <SEP> tones <tb> colors.
CH203875D 1936-09-05 1937-08-26 Process for the preparation of a water-soluble monoazo dye. CH203875A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE203875X 1936-09-05
CH200676T 1938-10-31

Publications (1)

Publication Number Publication Date
CH203875A true CH203875A (en) 1939-03-31

Family

ID=25723574

Family Applications (1)

Application Number Title Priority Date Filing Date
CH203875D CH203875A (en) 1936-09-05 1937-08-26 Process for the preparation of a water-soluble monoazo dye.

Country Status (1)

Country Link
CH (1) CH203875A (en)

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