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DE1264387B - Process for improving the fastness properties of dyeings and prints with sulfur dyes - Google Patents

Process for improving the fastness properties of dyeings and prints with sulfur dyes

Info

Publication number
DE1264387B
DE1264387B DER38368A DER0038368A DE1264387B DE 1264387 B DE1264387 B DE 1264387B DE R38368 A DER38368 A DE R38368A DE R0038368 A DER0038368 A DE R0038368A DE 1264387 B DE1264387 B DE 1264387B
Authority
DE
Germany
Prior art keywords
dyeings
prints
improving
fastness properties
sulfur dyes
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.)
Pending
Application number
DER38368A
Other languages
German (de)
Inventor
Dipl-Chem Dr Karl Bredereck
Dipl-Chem Dr Hermann Rath
Dipl-Chem Dr Horst Rieckert
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.)
HERMANN RATH DIPL CHEM DR
Original Assignee
HERMANN RATH DIPL CHEM 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 HERMANN RATH DIPL CHEM DR filed Critical HERMANN RATH DIPL CHEM DR
Priority to DER38368A priority Critical patent/DE1264387B/en
Publication of DE1264387B publication Critical patent/DE1264387B/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/30General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using sulfur dyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

Verfahren zur Verbesserung der Echtheitseigenschaften von Färbungen und Drucken mit Schwefelfarbstoffen Es ist bekannt (deutsche Patentschrift 907 643), die Echtheitseigenschaften von mit Schwefelfarbstoffen erzeugten Färbungen und Drucken in der Weise zu verbessern, daß man die Färbungen und Drucke vor der Oxydation mit spaltbaren Oniumverbindungen behandelt, so daß der Farbstoff in chemischer Reaktion so umgewandelt wird, daß er eine bedeutende Verbesserung seiner Naßechtheitseigenschaften erfährt. Meist wird jedoch durch eine solche Nachbehandlung in gewissem Umfang die Lichtechtheit mehr oder weniger verschlechtert. Außerdem ist die Behandlung mit einer gewissen Änderung des Farbtons verbunden.Process for improving the fastness properties of dyeings and printing with sulfur dyes It is known (German Patent 907 643), the fastness properties of dyeings and prints produced with sulfur dyes to improve in such a way that the dyeings and prints before the oxidation with treated fissile onium compounds so that the dye is in chemical reaction is so converted that it has a significant improvement in its wet fastness properties learns. In most cases, however, this type of follow-up treatment will, to a certain extent, reduce the Lightfastness more or less deteriorated. Also, the treatment is with associated with a certain change in shade.

Überraschenderweise hat sich gezeigt, wenn man die Nachbehandlung mit wasserlöslichen Addukten aus organischen Dihalogeniden und substituierten Hydrazinen durchführt, daß dann derartige Nachteile nicht eintreten. Die Naßechtheitseigenschaften, wie Waschechtheit, Oxydations- und Reduktionsechtheit werden bedeutend verbessert, während die Lichtechtheit sowie der Farbton praktisch unbeeinflußt bleiben.Surprisingly, it has been shown when you can follow up treatment with water-soluble adducts of organic dihalides and substituted hydrazines carries out that such disadvantages then do not occur. The wet fastness properties, such as fastness to washing, fastness to oxidation and reduction are significantly improved, while the light fastness and the color tone remain practically unaffected.

Der Vorteil derartiger Addukte gegenüber den bisher bekannten ist vor allen Dingen auch der, daß sie sich sehr leicht herstellen lassen und nicht hygroskopisch sind, so daß die Addukte als lagerbeständige Trockenpräparate in den Handel gebracht werden können. Verfahrensbeispiel 10 g einer mit einem Schwefelfarbstoff gefärbten Baumwolle werden nach dem Herausnehmen aus dem Färbebad abgequetscht und vor der Oxydation in einem mit Soda auf pH 10 eingestellten wässerigen 2 Bad behandelt, welches etwa 0,5 g des wasserlöslichen Addukts aus 1,4-Dichlorbutin-2 und N, N-Dimethyl-hydrazin enthält.The advantage of such adducts over the previously known is above all, that they can and cannot be produced very easily are hygroscopic, so that the adducts as storage-stable dry preparations in the Trade can be brought. Process Example 10 g of one containing a sulfur dye Dyed cottons are squeezed off after being removed from the dyebath and treated before oxidation in an aqueous 2 bath adjusted to pH 10 with soda, which is about 0.5 g of the water-soluble adduct of 1,4-dichlorobutyne-2 and N, N-dimethylhydrazine contains.

Claims (1)

Patentanspruch: Verfahren zur Verbesserung der Echtheitseigenschaften von Färbungen und Drucken mit Schwefelfarbstoffen, dadurch g e k e n n -z e i c h n e t, daß die Färbungen und Drucke in reduziertem Zustand, also vor der Oxydation, mit wasserlöslichen Addukten aus organischen Di-Halogeniden und substituierten Hydrazinen behandelt werden.Claim: Method for improving the authenticity properties of dyeings and prints with sulfur dyes, thus g e k e n n -z e i c n e t that the dyeings and prints in a reduced state, i.e. before oxidation, with water-soluble adducts of organic di-halides and substituted hydrazines be treated.
DER38368A 1964-07-14 1964-07-14 Process for improving the fastness properties of dyeings and prints with sulfur dyes Pending DE1264387B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER38368A DE1264387B (en) 1964-07-14 1964-07-14 Process for improving the fastness properties of dyeings and prints with sulfur dyes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER38368A DE1264387B (en) 1964-07-14 1964-07-14 Process for improving the fastness properties of dyeings and prints with sulfur dyes

Publications (1)

Publication Number Publication Date
DE1264387B true DE1264387B (en) 1968-03-28

Family

ID=7405493

Family Applications (1)

Application Number Title Priority Date Filing Date
DER38368A Pending DE1264387B (en) 1964-07-14 1964-07-14 Process for improving the fastness properties of dyeings and prints with sulfur dyes

Country Status (1)

Country Link
DE (1) DE1264387B (en)

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