CH145879A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH145879A
CH145879A CH145879DA CH145879A CH 145879 A CH145879 A CH 145879A CH 145879D A CH145879D A CH 145879DA CH 145879 A CH145879 A CH 145879A
Authority
CH
Switzerland
Prior art keywords
new dye
acid
production
dye
hol
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 CH145879A publication Critical patent/CH145879A/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
    • C09B56/00—Azo dyes containing other chromophoric systems
    • C09B56/04—Stilbene-azo dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Farbstoffes.       Es wurde gefunden, dass man einen  neuen wertvollen Farbstoff erhält, wenn man  1 Hol     Dehydrothio-p-toluidinmonosulfosäure     mit einem Hol 4. 4'-     Dinitrostilben    - 2.     2'-          disulfosäure    unter Druck kondensiert und  das erhaltene Kondensationsprodukt mit  einem Oxydationsmittel behandelt.  



  Der neue Farbstoff stellt getrocknet ein       braunoranges    Pulver dar, welches sich in  Wasser und verdünnten Alkalien mit       gelboranger,    in konzentrierter Schwefelsäure  mit violetter Farbe löst und Baumwolle in  sehr licht- und     alkaliechten    gelben Tönen  anfärbt.  



  <I>Beispiel:</I>  Man beschickt einen     Rührautoklaven    mit       :12    Teilen     Dehydrothio-p-toluidinmonosulfo-          säure,    43 Teilen     dinitrostilbendisulfosaurem     Natrium, 1000 Teilen Wasser und 125 Teilen  Natronlauge von     36         B6.    Man erwärmt auf    1.50      und    kondensiert 6 Stunden bei dieser  Temperatur. Nach dem Erkalten wird die  Natronlauge mit Säure abgestumpft und der  ausgeschiedene Farbstoff vollends     ausgesal-          zen,        abgenutscht        und    gepresst.

   Der     Press-          kuchen    wird mit     600    Teilen Wasser von 50   angerührt und     in    Gegenwart von 25 Teilen  Natronlauge von     36         B6    mit 300 Teilen Na  triumhypochloritlösung, enthaltend 13 % ak  tives Chlor, zirka 1 Stunde bei     60-70     behan  delt. Man lässt erkalten, salzt vollends aus  und scheidet den Farbstoff wie üblich ab.



  Process for the production of a new dye. It has been found that a new valuable dye is obtained if 1 pint of dehydrothio-p-toluidine monosulfonic acid is condensed under pressure with a 4, 4'-dinitrostilbene-2, 2'-disulfonic acid and the resulting condensation product is treated with an oxidizing agent.



  The new dye is a brown-orange powder when dried, which dissolves in water and dilute alkalis with yellow-orange, in concentrated sulfuric acid with violet color and dyes cotton in very light and alkali-fast yellow tones.



  <I> Example: </I> A stirred autoclave is charged with: 12 parts of dehydrothio-p-toluidine monosulfonic acid, 43 parts of sodium dinitrostilbene disulfonic acid, 1000 parts of water and 125 parts of sodium hydroxide solution of 36 B6. The mixture is heated to 1.50 and condensed for 6 hours at this temperature. After cooling, the caustic soda is blunted with acid and the precipitated dye is completely salted out, suction filtered and pressed.

   The press cake is mixed with 600 parts of 50% water and treated in the presence of 25 parts of 36 B6 sodium hydroxide solution with 300 parts of sodium hypochlorite solution containing 13% active chlorine for about 1 hour at 60-70. It is allowed to cool, completely salted out and the dye is separated off as usual.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man 1 Hol Dehydrothio-p-toluidinmonosulfosäure mit einem Hol 4. 4'- Dinitrostilben - 2. 2'- disulfosäure unter Druck kondensiert und das erhaltene Kondensationsprodukt mit einem Oxydationsmittel behandelt. PATENT CLAIM: Process for the preparation of a new dye, characterized in that 1 hol of dehydrothio-p-toluidine monosulfonic acid is condensed under pressure with a Hol 4. 4'-dinitrostilbene - 2. 2'-disulfonic acid and the resulting condensation product is treated with an oxidizing agent. Der neue Farbstoff stellt getrocknet ein braunoranges Pulver dar, welches sich in Wasser und verdünnten Alkalien mit gelboranger, in konzentrierter Schwefelsäure mit violetter Farbe löst und Baumwolle in sehr licht- und aJkaliechten gelben Tönen anfärbt. The new dye is a brown-orange powder when dried, which dissolves in water and dilute alkalis with yellow-orange, in concentrated sulfuric acid with violet color and dyes cotton in very light and ajka-like yellow tones.
CH145879D 1929-03-16 1929-03-16 Process for the production of a new dye. CH145879A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH145879T 1929-03-16
CH143025T 1929-03-16

Publications (1)

Publication Number Publication Date
CH145879A true CH145879A (en) 1931-03-15

Family

ID=25714176

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145879D CH145879A (en) 1929-03-16 1929-03-16 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH145879A (en)

Similar Documents

Publication Publication Date Title
CH145879A (en) Process for the production of a new dye.
CH145875A (en) Process for the production of a new dye.
CH145880A (en) Process for the production of a new dye.
CH145883A (en) Process for the production of a new dye.
CH145882A (en) Process for the production of a new dye.
CH145877A (en) Process for the production of a new dye.
CH145874A (en) Process for the production of a new dye.
CH145870A (en) Process for the production of a new dye.
CH145873A (en) Process for the production of a new dye.
CH145876A (en) Process for the production of a new dye.
CH145881A (en) Process for the production of a new dye.
CH145878A (en) Process for the production of a new dye.
CH145884A (en) Process for the production of a new dye.
CH145871A (en) Process for the production of a new dye.
CH145872A (en) Process for the production of a new dye.
DE568034C (en) Process for the production of condensation products
CH145869A (en) Process for the production of a new dye.
CH232517A (en) Process for the production of a vat dye.
CH187901A (en) Process for the preparation of 2-amino-1-oxynaphthalene-6-sulfonic acid.
CH221197A (en) Process for the preparation of a stilbene dye.
CH108196A (en) Process for the production of a new intermediate product in the tar color industry.
CH119149A (en) Process for the preparation of an anthracene derivative.
CH140330A (en) Process for the production of a new metal-containing dye.
CH97363A (en) Process for the preparation of a condensation product of the anthraquinone series which can be used as dye and dye intermediate.
CH143025A (en) Process for the production of a new dye.