DE422468C - Process for improving the lightfastness of insoluble azo dyes produced on the fiber - Google Patents

Process for improving the lightfastness of insoluble azo dyes produced on the fiber

Info

Publication number
DE422468C
DE422468C DEC35073D DEC0035073D DE422468C DE 422468 C DE422468 C DE 422468C DE C35073 D DEC35073 D DE C35073D DE C0035073 D DEC0035073 D DE C0035073D DE 422468 C DE422468 C DE 422468C
Authority
DE
Germany
Prior art keywords
lightfastness
fiber
improving
azo dyes
insoluble azo
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
DEC35073D
Other languages
German (de)
Inventor
Benedikt Schaefer
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.)
CHEM FAB GRIESCHEIM ELEKTRON F
Original Assignee
CHEM FAB GRIESCHEIM ELEKTRON F
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 FAB GRIESCHEIM ELEKTRON F filed Critical CHEM FAB GRIESCHEIM ELEKTRON F
Priority to DEC35073D priority Critical patent/DE422468C/en
Application granted granted Critical
Publication of DE422468C publication Critical patent/DE422468C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D06P5/10—After-treatment with compounds containing metal
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General 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
    • D06P1/02—General 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 azo dyes
    • D06P1/12—General 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 azo dyes prepared in situ

Landscapes

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

Description

Verfahren zur Verbesserung der Lichtechtheit von auf der Faser erzeugten unlöslichen Azofarbstoffen. Es ist bekannt, daß die auf der Faser erzeugten unlöslichen Azofarbstoffe aus a, # 3-Oxynaphthoesäurearyliden, die im Farbstoffmolekül Oxalkylgruppen enthalten, eine Verbesserung ihrer Lichtechtheit erfahren, wenn sie mit kalten oder heißen Metallsalzlösungen nachbehandelt werden.Process for improving the lightfastness of those produced on the fiber insoluble azo dyes. It is known that those produced on the fiber are insoluble Azo dyes made from a, # 3-oxynaphthoic acid arylides, which have oxalkyl groups in the dye molecule contain an improvement in their lightfastness when used with cold or hot metal salt solutions are post-treated.

Es wurde nun gefunden, daß die Lichtechtheit solcher Färbungen noch bedeutend ierhöht wird, wenn die Nachbehandlung mit den Metallsalzlösungen bei Temperaturen über i oo° durch Erhitzen unter Druck erfolgt. Die Verbesserung der Lichtechtheit tritt ein bei Färbungen, deren Farbstoffmolekül eine oder mehrere Oxalkylgrupp,en :enthalten, einerlei, ob die Gruppen in. der Azo- oder in der Diazokomponente oder in beiden zusammen sitzen.It has now been found that such dyeings are still lightfast is significantly increased if the aftertreatment with the metal salt solutions at temperatures takes place above 100 ° by heating under pressure. The improvement of the lightfastness occurs in dyeings whose dye molecule has one or more oxyalkyl groups : contain, regardless of whether the groups in. The azo or in the diazo component or sit in both together.

Beispiel i.Example i.

Eine aus 2. 3-Oxynaphthoyl-p-anisidin und Tetrazodianisidin auf Baumwolle hergestell:e Färbung wird 1/2 Stunde bei etwa i Atm. Druck mit einer Lösung, die 2 g Kupfervitriol und i ccm Eisessig im Liter .enthält, nachbehandelt. Es wird eine Lichtechtheit erzielt, die wesentlich besser ist, .als wenn die gleiche Färbung ohne Druck nachbehandelt wird.One of 2. 3-oxynaphthoyl-p-anisidine and tetrazodianisidine on cotton produced: e staining is 1/2 hour at about 1 atm. Pressure with a solution that Contains 2 g of copper vitriol and 1 cc of glacial acetic acid per liter, aftertreatment. It will be a Achieved lightfastness that is much better than if the same coloration is post-treated without pressure.

Beispiele. Eine aus 2 # 3-Oxynaphthoyl-o-anisidin und Diazo-o-chloranilin auf Baumwolle hergestellte Färbung wird 1/2 Stunde unter etwa i Atm.. Druck mit einer Lösung, die 3 g Zinksulfat und i ccm Eisessig im Liter enthält, nachbehandelt. Es wird eine erhebliche Verbesserung der Lichtechtheit gegenüber der Behandlung ohne Druck erzielt.Examples. One of 2 # 3-oxynaphthoyl-o-anisidine and diazo-o-chloroaniline Dyeing made on cotton is 1/2 hour under about 1 atm. pressure with a solution containing 3 g of zinc sulfate and 1 cc of glacial acetic acid per liter. There will be a significant improvement in lightfastness over the treatment achieved without pressure.

Beispiel 3.Example 3.

Die aus 2.3-Oxynaphthoyl-o-anisidin und Diazo-q.-nitro-i # 2-anisidin auf Baumwolle hergestellte Färbung wird etwa. 2o Minuten bei i Atm. Druck mit einer Lösung nachbehandelt, die im Liter 3 g Nickelsulfat und i ccm Eisessig enthält. Main erzielt gegenüber der Nachbehandlung ohne Druck- eine bedeutende Verbesserung der Lichtechtheit.The one from 2,3-oxynaphthoyl-o-anisidine and diazo-q.-nitro-i # 2-anisidine Dye made on cotton is about. 20 minutes at i atm. Printing with a Post-treated solution containing 3 g of nickel sulphate and 1 cc of glacial acetic acid per liter. Main achieves a significant improvement over post-treatment without pressure the lightfastness.

Beispiel q..Example q ..

Eine aus 2 # 3-Oxynaphthoylanilin und Tetraazodianis_din auf Baumwolle hergestellte Färbung wird etwa -2o Minuten unter Druck mit einer Lösung nachbehandelt, die 2 g Kupferacetat und i ccm Eisessig im Liter enthält. Es wird eine erhebliche Verbesserung der Lichtechtheit gegenüber den in der üblichen Weise nachbehandelten Färbungen erzielt.One made from 2 # 3-Oxynaphthoylaniline and Tetraazodianis_din on cotton The dye produced is treated with a solution under pressure for about -2o minutes, which contains 2 g of copper acetate and 1 cc of glacial acetic acid per liter. It will be a significant one Improvement of the light fastness compared to the after-treated in the usual way Staining achieved.

Die stärkste Aufnahme von Metallsalzen ir, das Farbstoffmolekül und damit auch die beste Lichtechtheit erzielt man bei der Anwendung von Salzen von schwachen Säuren.The strongest uptake of metal salts ir, the dye molecule and thus the best lightfastness is achieved when using salts from weak acids.

Claims (1)

PATENT-ANSPRüCX: Verfahren zur Verbesserung der Lichtechtheit von auf der Faser erzieugten unlöslichen. Azofarbstoffen " aus 2 # 3-Öxynaphthoesäureatyliden,.. die im Farbstoffmolekül Oxalkylgruppen enthalten, dadurch gekennzeichnet, daß man solche Färbungen bei Temperaturen über zoo° durch Erhitzen unter Druck mit den Lösungen von Metallsalzen . nachbehandelt-PATENT REQUIREMENTS: Process for improving the lightfastness of insolubles raised on the fiber. Azo dyes "from 2 # 3-Öxynaphthoesäureatyliden, .. which contain oxalkyl groups in the dye molecule, characterized in that one such colorations at temperatures above zoo ° by heating under pressure with the solutions of metal salts. post-treated-
DEC35073D 1924-07-03 1924-07-03 Process for improving the lightfastness of insoluble azo dyes produced on the fiber Expired DE422468C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC35073D DE422468C (en) 1924-07-03 1924-07-03 Process for improving the lightfastness of insoluble azo dyes produced on the fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC35073D DE422468C (en) 1924-07-03 1924-07-03 Process for improving the lightfastness of insoluble azo dyes produced on the fiber

Publications (1)

Publication Number Publication Date
DE422468C true DE422468C (en) 1925-12-02

Family

ID=7021642

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC35073D Expired DE422468C (en) 1924-07-03 1924-07-03 Process for improving the lightfastness of insoluble azo dyes produced on the fiber

Country Status (1)

Country Link
DE (1) DE422468C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748972C (en) * 1937-12-28 1945-01-19 Process for improving the wet fastness properties of ice paints on cellulose fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748972C (en) * 1937-12-28 1945-01-19 Process for improving the wet fastness properties of ice paints on cellulose fibers

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