CH106430A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

Info

Publication number
CH106430A
CH106430A CH106430DA CH106430A CH 106430 A CH106430 A CH 106430A CH 106430D A CH106430D A CH 106430DA CH 106430 A CH106430 A CH 106430A
Authority
CH
Switzerland
Prior art keywords
new
production
dye
indigoid dye
chloro
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 CH106430A publication Critical patent/CH106430A/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
    • C09B7/00—Indigoid dyes
    • C09B7/10—Bis-thionapthene indigos

Description

  

  Verfahren zur Herstellung eines neuen     indigoiden        Farbstoffes.       Es wurde     gefunden,,dass    man einen neuen       indigoiden    Farbstoff erhält, wenn man das       8-Chlor-1,2-thionaphthis.atin    (welches erhal  ten werden kann durch Kondensieren von     8-          Chlo,r-l-thionaphthol    mit     Oxalylchlorid)    mit       Oxythionaphthenkarbonsii,ure    kondensiert und  das so     ;erhaltene    Produkt     bromiert.     



  Der neue Farbstoff bildet ein rotes Pul  ver, löst sich in konzentrierter Schwefelsäure  mit grüner Farbe, gibt mit     Hydrosulfit    und  Natronlauge eine goldgelbe     Küpe    und erzeugt  auf     Baumwolle    Färbungen, welche nach dem  Seifen     violett    und sehr echt werden.  



  <I>Beispiel:</I>  In 10000 Teile Alkohol werden 248,5  Teile     8-Chlor-1,2-thionaphthis-atin    und 194  Teile     Oxythion.aphthenkarbonsäure    eingetra  gen und     hierauf    die     Mischung    längere Zeit  am     Rückflusskühler    gekocht. Der gebildete  Farbstoff wird filtriert, gewaschen und     ge-          troicknet.       380 Teile des so erhaltenen Farbstoffes  werden bei 0   bis 5   in eine Mischung von  9000 Teilen 90     %iger,Schwefelsäure    mit 144  Teilen Brom eingetragen und 12     Stunden    bei  gewöhnlicher Temperatur gerührt.

   Hierauf       wird    auf Eis ausgetragen, der abgeschiedene  Farbstoff filtriert und getrocknet.



  Process for the production of a new indigoid dye. It has been found that a new indigoid dye is obtained if 8-chloro-1,2-thionaphthis.atin (which can be obtained by condensing 8-chloro, rl-thionaphthol with oxalyl chloride) with oxythionaphthene carboxylic acid condensed and the product thus obtained brominated.



  The new dye forms a red powder, dissolves in concentrated sulfuric acid with a green color, gives a golden yellow vat with hydrosulfite and sodium hydroxide solution and creates colors on cotton that turn violet and very real after soaking.



  <I> Example: </I> 248.5 parts of 8-chloro-1,2-thionaphthis-atin and 194 parts of oxythione-naphthenic acid are added to 10,000 parts of alcohol, and the mixture is then boiled on the reflux condenser for a long time. The dye formed is filtered, washed and dried. 380 parts of the dye thus obtained are introduced at 0 to 5 into a mixture of 9000 parts of 90% strength sulfuric acid with 144 parts of bromine and the mixture is stirred for 12 hours at ordinary temperature.

   It is then poured onto ice, and the deposited dye is filtered and dried.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen indigoiden Farbstoffes, dadurch gekennzeich net, dass man 8-Chlor-1,2-thion.aphthisatin mit Oxynaphthenkfarbonsäjure kondensiert und das so erhaltene Produkt bromiert. Der neue Farbstoff bildet ein rotes Pul ver, löst sich in konzentrierter Schwefelsäure mit grüner Farbe, gibt mit Hydrosulfit und Niatronlauge eine goldgelbe Küpe und er zeugt auf Baumwolle Färbungen, PATENT CLAIM Process for the production of a new indigoid dye, characterized in that 8-chloro-1,2-thion.aphthisatin is condensed with oxynaphthene-dyed acid and the product thus obtained is brominated. The new dye forms a red powder, dissolves in concentrated sulfuric acid with a green color, gives a golden yellow vat with hydrosulphite and sodium hydroxide solution and it produces dyes on cotton, welche nach dem Seifen violett und sehr echt werden. which turn purple and very real after soapy.
CH106430D 1922-11-18 1922-12-07 Process for the production of a new indigoid dye. CH106430A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH106430T 1922-12-07

Publications (1)

Publication Number Publication Date
CH106430A true CH106430A (en) 1924-09-01

Family

ID=25705845

Family Applications (1)

Application Number Title Priority Date Filing Date
CH106430D CH106430A (en) 1922-11-18 1922-12-07 Process for the production of a new indigoid dye.

Country Status (1)

Country Link
CH (1) CH106430A (en)

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