CH191755A - Process for the preparation of an acidic chromating dye of the anthraquinone series. - Google Patents

Process for the preparation of an acidic chromating dye of the anthraquinone series.

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Publication number
CH191755A
CH191755A CH191755DA CH191755A CH 191755 A CH191755 A CH 191755A CH 191755D A CH191755D A CH 191755DA CH 191755 A CH191755 A CH 191755A
Authority
CH
Switzerland
Prior art keywords
dye
preparation
anthraquinone series
amino
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 CH191755A publication Critical patent/CH191755A/en

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Description

  

  Verfahren zur Darstellung eines sauren     Chromierungsfarbstoffes    der     Anthrachinonreihe.       Gegenstand     dieses    Zusatzpatentes ist ein  Verfahren zur     Darstellung    eines sauren       Chromierungsfarbstoffes    der     AnthracIiinon-          reihe,    welches dadurch gekennzeichnet ist,       dass    man     1-Amino-4-bromanthrachinon-2-sul-          fosäure    mit     4'-Amino-2-ogy-5-methyldiplie-          nvlmethan-3-carbonsäure        kondensiert.       <I>Beispiel:

  </I>    380     Gewichtsteile        1-Amino-4-bromanthra-          chin.on-:2,        sulfosäure    und 300     Gewichtsteile          4'-        Amino-    2 -     oxy-,5-methyldiphenylmethan-.3--          carbonsäure    werden in Form ihrer Natrium  salze in Wasser gelöst und mit 170 Gewichts  teilen     Natriumbicarbonat    und 9 Gewichts  teilen     Kupferchlorür    '24 Stunden bei 60 bis  65   C gerührt.

   Das     Reaktionsgemisch    wird  in Wasser aufgenommen und mit     verdünnter          Salzsäure    gesäuert. Der ausgeschiedene Farb  stoff kann in der üblichen Weise noch weiter  gereinigt werden. Er zieht auf Wolle in  klaren blauen Tönen, welche beim Chromie-         ren    in ein Graugrün mit vorzüglichen Echt  heitseigenschaften übergehen.



  Process for the preparation of an acidic chromating dye of the anthraquinone series. The subject of this additional patent is a process for the preparation of an acidic chromating dye of the anthracinone series, which is characterized in that 1-amino-4-bromoanthraquinone-2-sulphonic acid is mixed with 4'-amino-2-ogy-5-methyldiplie- nvlmethane-3-carboxylic acid condensed. <I> example:

  </I> 380 parts by weight of 1-amino-4-bromoanthra- chin.on-: 2, sulfonic acid and 300 parts by weight of 4'-amino-2-oxy-, 5-methyldiphenylmethane-.3-- carboxylic acid are in the form of their sodium salts dissolved in water and mixed with 170 parts by weight of sodium bicarbonate and 9 parts by weight of copper chloride for 24 hours at 60 to 65 ° C.

   The reaction mixture is taken up in water and acidified with dilute hydrochloric acid. The precipitated dye can be further purified in the usual way. It pulls on wool in clear blue tones which, when chromed, turn into a gray-green with excellent fastness properties.

Claims (1)

PATENTANSPRUCH Verfahren zur Darstellung eines sauren Chromierungsfarbstoffes der Anthrachinon- reihe, dadurch gekennzeichnet, dass man 1 Amino-4-bromanthrachinon-2-sulfosäure mit 4' - Amino- 2- oxy-,5-methyldiphenylmethan-ss- carbonsäure kondensiert. Der so erhaltene Farbstoff färbt Wolle in klaren blauen Tönen, die beim Nachchro- mieren in ein Graugrün von vorzüglichen Echtheitseigenschaften übergehen. PATENT CLAIM Process for the preparation of an acidic chromating dye of the anthraquinone series, characterized in that 1 amino-4-bromoanthraquinone-2-sulfonic acid is condensed with 4'-amino-2-oxy, 5-methyldiphenylmethane-s-carboxylic acid. The dyestuff thus obtained dyes wool in clear blue tones which, on re-chroming, change to a gray-green with excellent fastness properties. UNTERANSPRUCH: Verfahren nach Patentanspruch, .dadurch gekennzeichnet, @dass man die Kondensation der Reaktionskomponenten durch Erhitzen in Wasser in Gegenwart von Natriumbioar- bonat und Kupferchlorür bewirkt. SUBSTANTIAL CLAIM: Process according to patent claim, characterized in that the condensation of the reaction components is brought about by heating in water in the presence of sodium bio-carbonate and copper chloride.
CH191755D 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series. CH191755A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE191755X 1934-12-22
DE231035X 1935-10-23
CH188888T 1935-12-19

Publications (1)

Publication Number Publication Date
CH191755A true CH191755A (en) 1937-06-30

Family

ID=27177771

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191755D CH191755A (en) 1934-12-22 1935-12-19 Process for the preparation of an acidic chromating dye of the anthraquinone series.

Country Status (1)

Country Link
CH (1) CH191755A (en)

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