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DE385956C - Process for the preparation of a Kuepen dye - Google Patents

Process for the preparation of a Kuepen dye

Info

Publication number
DE385956C
DE385956C DEA39186D DEA0039186D DE385956C DE 385956 C DE385956 C DE 385956C DE A39186 D DEA39186 D DE A39186D DE A0039186 D DEA0039186 D DE A0039186D DE 385956 C DE385956 C DE 385956C
Authority
DE
Germany
Prior art keywords
dye
preparation
kuepen
alkalis
blood
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEA39186D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DER ANILINFARBEN und CHEMIKALI
KAROL DZIEWONSKI DR
Original Assignee
DER ANILINFARBEN und CHEMIKALI
KAROL DZIEWONSKI DR
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 DER ANILINFARBEN und CHEMIKALI, KAROL DZIEWONSKI DR filed Critical DER ANILINFARBEN und CHEMIKALI
Priority to DEA39186D priority Critical patent/DE385956C/en
Application granted granted Critical
Publication of DE385956C publication Critical patent/DE385956C/en
Expired legal-status Critical Current

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
    • C09B57/00—Other synthetic dyes of known constitution

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Coloring (AREA)

Description

Verfahren zur Darstellung eines Küpenfarbstoffes. In dem Patent 379616 ist ein Verfahren zur Gewinnung eines Säurefarbstoffes, eines SttlfO-derivates, des unter der Bezeichnung Dekacvklen in der Literatur bekannten Kohlenwasserstoffes beschrieben, das darin besteht, daß man den genannten Körper mit Schwefelsäure behandelt.Process for the preparation of a vat dye. In the 379616 patent is a process for obtaining an acid dye, a SttlfO derivative, of the hydrocarbon known in the literature as Dekacvklen described, which consists in treating said body with sulfuric acid.

Es wurde nun gefunden, daß durch Schmelzen dieses S.ulfonierungsproduktes mit Ätzalkalien ein neuer farbkräftigerKüpenfarbstoff erhalten wird. Der neue Körper ist in Alkalien in Gegenwart von Reduktionsmitteln mit blutroter Farbe löslich und färbt Baurr:-wolle und andere Fasern aus Hydrosulfitküpe oder Schwefelnatriumlösung olivgrün. Die olivgrüne Färbung geht bei Nachbehandlung mit Bichromatlösung oder anderen Oxydationsmitteln in ein tiefes Schwarz über.It has now been found that by melting this S.ulfonierungsproduktes a new strong colored vat dye is obtained with caustic alkalis. The new body is soluble in alkalis in the presence of reducing agents with blood-red color and dyes Baurr: wool and other fibers from hydrosulphite vat or sodium sulphide solution olive green. The olive green color goes after treatment with bichromate solution or other oxidizing agents in a deep black.

Beispiel. 5 Gewichtsteile des trockenen Natriumsalzes der in dem Patent beschriebenen Sulfonsäure werden mit 15 Gewichtsteilen Natriumhydr-Oxyd und 5 Gewichtsteilen Wasser bei einer Temperatur von 300° in der üblichen Art verschmolzen. -Die Schmelze wird nach dem Erkalten in Wasser gelöst und die so erhaltene blutrote Lösung mit Salzsäure angesäuert, wobei sich unter starker Schwefeldioxydentwicklung ein olivgrüner Niederschlag abscheidet.Example. 5 parts by weight of the dry sodium salt of that in the patent The sulfonic acid described are mixed with 15 parts by weight of sodium hydroxide and 5 parts by weight Water fused at a temperature of 300 ° in the usual way. -The melt is dissolved in water after cooling and the blood-red solution thus obtained with Hydrochloric acid acidified, whereby an olive-green Precipitation separates.

Das abfiltrierte und gewaschene Produkt bildet nach dem Trocknen ein schwarzes Pulver, das im frisch bereiteten Zustand in Alkalien löslich ist, nach längerem Aufbewahren aber seine Löslichkeit in Laugen ohne Gegenwart eines Reduktionsmittels verliert. In Schwefelnatrium oder alkalischem Hydrosulfit löst es sich mit blutroter Farbe.The filtered and washed product forms after drying black powder, which is soluble in alkalis when freshly prepared prolonged storage but its solubility in alkalis without the presence of a reducing agent loses. In sodium sulphide or alkaline hydrosulphite it dissolves with blood red Colour.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Küpenfarbstoffes, dadurch gekennzeichnet, daß man die durch Einwirkung von Schwefelsäure auf Dekacyklen erhältliche Sulfonsäure mit Ätzalkalien verschmilzt. PATENT CLAIM: Process for the production of a vat dye, characterized in that the sulfonic acid obtained by the action of sulfuric acid on decacycles is fused with caustic alkalis.
DEA39186D 1921-07-16 1921-07-16 Process for the preparation of a Kuepen dye Expired DE385956C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA39186D DE385956C (en) 1921-07-16 1921-07-16 Process for the preparation of a Kuepen dye

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA39186D DE385956C (en) 1921-07-16 1921-07-16 Process for the preparation of a Kuepen dye

Publications (1)

Publication Number Publication Date
DE385956C true DE385956C (en) 1923-11-27

Family

ID=6931235

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA39186D Expired DE385956C (en) 1921-07-16 1921-07-16 Process for the preparation of a Kuepen dye

Country Status (1)

Country Link
DE (1) DE385956C (en)

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