CH127720A - Process for the preparation of a water-soluble chromating dye of the triarylmethane series. - Google Patents

Process for the preparation of a water-soluble chromating dye of the triarylmethane series.

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Publication number
CH127720A
CH127720A CH127720DA CH127720A CH 127720 A CH127720 A CH 127720A CH 127720D A CH127720D A CH 127720DA CH 127720 A CH127720 A CH 127720A
Authority
CH
Switzerland
Prior art keywords
dye
soluble
water
preparation
chromating
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 CH127720A publication Critical patent/CH127720A/en

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Description

  

  Verfahren zur Darstellung eines wasserlöslichen     Ohromierungsfarbstoffes    der       Tr        iarylmethanr        eihe.       Gegenstand dieses Zusatzpatentes ist ein  Verfahren zur Darstellung eines wasserlös  lichen     Chromierungsfarbstoffes,    welches  darin besteht, dass man     o-o-Dichlorphenyl-          di-o-kresotinsäurecarbinol    mit einem neu  tralen     Sulfit    behandelt.  



  <I>Beispiel:</I>  48 Gewichtsteile Farbstoff aus     o-o-Dichlor-          phenyl-di-o-kresotinsäurecarbinol    werden mit  55 Gewichtsteilen     Natriumsulfit    (kristallisiert)  und 1000     Teilen    Wasser bis zur Lösung er  hitzt, von eventuellen Verunreinigungen fil  triert und eingedampft. Der Farbstoff gibt       nachchromiert    ein Rotbraun von guter Al  kali- und     Dekatierechtheit.    Der Ersprungs-         farbstoff    färbt in der     Nachchromierung     blau.



  Process for the preparation of a water-soluble odorization dye of the triarylmethane series. The subject of this additional patent is a process for the preparation of a water-soluble chromating dye, which consists in treating o-o-dichlorophenyl-di-o-cresotinic acid carbinol with a neutral sulfite.



  <I> Example: </I> 48 parts by weight of dye from o-o-dichloro-phenyl-di-o-cresotinsäurecarbinol are heated with 55 parts by weight of sodium sulfite (crystallized) and 1000 parts of water until they dissolve, any impurities are filtered out and evaporated. When chromed, the dye gives a reddish brown with good resistance to alkali and décate. The initial dye turns blue in the post-chrome plating.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines wasser löslichen Chromierungsfarbstoffes, dadurch gekennzeichnet, dass man o-o-Dichlorphenyl- di-o-kresotinsäurecarbinol mit einem neu tralen Sulfit behandelt. Der Farbstoff gibt nachchromiert ein Rotbraun von guter Alkali- und Dekatier- echtheit. Der Ursprungsfarbstoff färbt in der Nachchromierung blau. PATENT CLAIM: Process for the preparation of a water-soluble chromating dye, characterized in that o-o-dichlorophenyl-di-o-cresotinic acid carbinol is treated with a neutral sulfite. Chromed, the dye gives a reddish brown with good alkali and decatization fastness. The original dye turns blue after chrome plating.
CH127720D 1926-01-02 1926-12-30 Process for the preparation of a water-soluble chromating dye of the triarylmethane series. CH127720A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE127720X 1926-01-02
CH124354T 1926-12-30

Publications (1)

Publication Number Publication Date
CH127720A true CH127720A (en) 1928-09-17

Family

ID=25710238

Family Applications (1)

Application Number Title Priority Date Filing Date
CH127720D CH127720A (en) 1926-01-02 1926-12-30 Process for the preparation of a water-soluble chromating dye of the triarylmethane series.

Country Status (1)

Country Link
CH (1) CH127720A (en)

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