CH104929A - Process for the production of a new indigoid dye. - Google Patents

Process for the production of a new indigoid dye.

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Publication number
CH104929A
CH104929A CH104929DA CH104929A CH 104929 A CH104929 A CH 104929A CH 104929D A CH104929D A CH 104929DA CH 104929 A CH104929 A CH 104929A
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CH
Switzerland
Prior art keywords
production
new
brown
dye
indigoid dye
Prior art date
Application number
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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 CH104929A publication Critical patent/CH104929A/en

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  Verfahren zur Herstellung eines neuen     indigoiden        Farbstoffes.       Es wurde gefunden, dass man einen     Küpen-          farbstoff    herstellen kann, wenn man     1#2-Thio-          naphthisatin,    welches durch Kondensieren von       1-Thionaphthol    mit     Oxalylchlorid    erhalten wer  den kann, mit dem 1     #        2-Naphtlithioindoxyl     kondensiert.

   Der so erhaltene     Farbstoff    stellt  ein dunkelrotes Pulver dar, das sich in Schwe  felsäure mit blauer Farbe löst; er gibt mit       Hydrosulfit    und Natronlauge eine gelbbraune       Küpe,    aus     weleherBaumwolle    in     violettbraunen          Tönen    gefärbt wird, die beim Seifen in ein  vorzüglich echtes Rotbraun übergehen.  



       Beispiel:     214 Teile 1     #        2-Thionaphthisatin    und 200  Teile     1-2-Naphththioindoxyl    werden in 4000  Teilen Alkohol suspendiert und nach Beigabe       von    5 Teilen Soda zum Sieden erhitzt. Nach    kurzem Kochen ist die Kondensation beendet.  Der in sehr guter Ausbeute abgeschiedene  Farbstoff wird filtriert, gewaschen und ge  trocknet.



  Process for the production of a new indigoid dye. It has been found that a vat dye can be produced if 1 # 2-thionaphthisatin, which can be obtained by condensing 1-thionaphthol with oxalyl chloride, is condensed with the 1 # 2-naphthlithioindoxyl.

   The dye thus obtained is a dark red powder which dissolves in sulfuric acid with a blue color; he gives a yellow-brown vat with hydrosulphite and caustic soda, which is dyed from cotton in violet-brown tones, which turn into an exquisitely real red-brown when soapy.



       Example: 214 parts of 1 # 2-thionaphthisatin and 200 parts of 1-2-naphththioindoxyl are suspended in 4000 parts of alcohol and heated to the boil after adding 5 parts of soda. After a short boil, the condensation has ended. The dyestuff deposited in very good yield is filtered, washed and dried.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen in- digoiden Farbstoffes, dadurch gekennzeichnet, dass man 1 # 2-Thionapht hisatin mit 1 # 2-Naphth- thioindoxyl kondensiert. Der neue Farbstoff stellt ein dunkelrotes Pulver dar, das sich in Schwefelsäure mit blauer Farbe löst; PATENT CLAIM Process for the production of a new indigoid dye, characterized in that 1 # 2-thionaphthisatin is condensed with 1 # 2-naphththioindoxyl. The new dye is a dark red powder that dissolves in sulfuric acid with a blue color; er gibt mit Hydrosulfit und Natronlauge eine gelb braune Küpe, aus welcher Baumwolle in vio- lettbraunen Tönen gefärbt wird, die beim Sei fen in ein vorzüglich echtes Rotbraun über gehen. He gives a yellow-brown vat with hydrosulphite and sodium hydroxide solution, from which cotton is dyed in violet-brown tones, which turn into an exquisitely true red-brown when soaked.
CH104929D 1922-11-18 1923-02-17 Process for the production of a new indigoid dye. CH104929A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH100705T 1922-11-18
CH104929T 1923-02-17

Publications (1)

Publication Number Publication Date
CH104929A true CH104929A (en) 1924-05-16

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ID=25705826

Family Applications (1)

Application Number Title Priority Date Filing Date
CH104929D CH104929A (en) 1922-11-18 1923-02-17 Process for the production of a new indigoid dye.

Country Status (1)

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CH (1) CH104929A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062568B (en) * 1958-07-18 1959-07-30 Kugelfischer G Schaefer & Co Grinding spindle bearing with at least one shoulder ball bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062568B (en) * 1958-07-18 1959-07-30 Kugelfischer G Schaefer & Co Grinding spindle bearing with at least one shoulder ball bearing

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