CH117997A - Process for the production of a new dye. - Google Patents

Process for the production of a new dye.

Info

Publication number
CH117997A
CH117997A CH117997DA CH117997A CH 117997 A CH117997 A CH 117997A CH 117997D A CH117997D A CH 117997DA CH 117997 A CH117997 A CH 117997A
Authority
CH
Switzerland
Prior art keywords
new dye
production
yellow
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 CH117997A publication Critical patent/CH117997A/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
    • C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
    • C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
    • C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
    • C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
    • C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
    • C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone

Landscapes

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

Description

  

  Verfahren zur     Tierstellung    eines neuen Farbstoffes.    Es wurde gefunden, dass man einen neuen  Farbstoff erhält, wenn man     Diazobenzol    mit       1-(2'-Chlor)-phenyl-3        -methyl    - 5 -     pylrazolon     kuppelt. Der neue Farbstoff bildet ein gelbes  Pulver, das in Wasser unlöslich, in Benzol  oder andern organischen Lösungsmitteln mit  gelber Farbe löslich ist. Er erzeugt auf     Ace-          tylzellulose,    aus wässerigen Suspensionen  gefärbt, reine gelbe Färbungen von hervor  ragender Schönheit und Echtheit.  



  <I>Beispiel</I>  <B>11</B> Teile     1-(2'-Chlor)-phenyl-3-methyl-5-          pyrazolon    werden in verdünnter     Sodalösung     gelöst und mit einer     Diazolösung,    hergestellt  aus 4,6 Teilen Anilin, versetzt. Der in gel  ben Flocken abgeschiedene Farbstoff wird       filtriert,    gewaschen und getrocknet.  



  Zum Färben der     Acetylzellulose    wird er  zweckmässig nicht getrocknet, sondern in    Form des feuchten     Presskuchens    in Gegen  wart eines Schutzkolloides, wie zum Beispiel  einer Lösung von     Sulfitzelluloseablauge,    in  einer geeigneten Mühle verrieben.



  Method for producing a new dye on animals. It has been found that a new dye is obtained when diazobenzene is coupled with 1- (2'-chloro) -phenyl-3-methyl-5-pylrazolone. The new dye forms a yellow powder which is insoluble in water, soluble in benzene or other organic solvents with a yellow color. On acetyl cellulose, dyed from aqueous suspensions, it produces pure yellow colorations of outstanding beauty and authenticity.



  <I> Example </I> <B> 11 </B> parts 1- (2'-chloro) -phenyl-3-methyl-5-pyrazolone are dissolved in dilute soda solution and mixed with a diazo solution prepared from 4,6 Share aniline, offset. The dye deposited in yellow flakes is filtered, washed and dried.



  To dye the acetyl cellulose, it is not expedient to dry it, but instead grind it in a suitable mill in the form of the moist presscake in the presence of a protective colloid, such as a solution of sulphite cellulose liquor.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Farbstoffes, dadurch gekennzeichnet, dass man Diazobenzol mit 1-(2'-Chlor)-phenyl-3-me- thyl-5-pyrazolon kuppelt. Der neue Farb stoff bildet ein gelbes Pulver, das in Wasser unlöslich, in Benzol oder andern organischen Lösungsmitteln mit gelber Farbe löslich ist. Er erzeugt auf Acetylzellulose, aus wässe rigen Suspensionen gefärbt, reine gelbe Fär bungen von hervorragender Schönheit und Echtheit. PATENT CLAIM: Process for the production of a new dye, characterized in that diazobenzene is coupled with 1- (2'-chloro) -phenyl-3-methyl-5-pyrazolone. The new dye forms a yellow powder that is insoluble in water, soluble in benzene or other organic solvents with a yellow color. On acetyl cellulose, dyed from aqueous suspensions, it produces pure yellow dyes of outstanding beauty and authenticity.
CH117997D 1926-12-01 1925-08-01 Process for the production of a new dye. CH117997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH117997T 1926-12-01

Publications (1)

Publication Number Publication Date
CH117997A true CH117997A (en) 1926-12-01

Family

ID=4376980

Family Applications (1)

Application Number Title Priority Date Filing Date
CH117997D CH117997A (en) 1926-12-01 1925-08-01 Process for the production of a new dye.

Country Status (1)

Country Link
CH (1) CH117997A (en)

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