DE1719394A1 - Retarding dyeing aid for dyeing polyacrylonitrile fibers with cationic dyes - Google Patents

Retarding dyeing aid for dyeing polyacrylonitrile fibers with cationic dyes

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Publication number
DE1719394A1
DE1719394A1 DE19681719394 DE1719394A DE1719394A1 DE 1719394 A1 DE1719394 A1 DE 1719394A1 DE 19681719394 DE19681719394 DE 19681719394 DE 1719394 A DE1719394 A DE 1719394A DE 1719394 A1 DE1719394 A1 DE 1719394A1
Authority
DE
Germany
Prior art keywords
dyeing
acid
aid
retarding
cationic 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
DE19681719394
Other languages
German (de)
Inventor
Gerhard Bergmann
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of DE1719394A1 publication Critical patent/DE1719394A1/en
Pending legal-status Critical Current

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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
    • D06P1/44General 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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52General 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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • 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
    • D06P1/44General 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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64General 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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642Compounds containing nitrogen
    • D06P1/647Nitrogen-containing carboxylic acids or their salts
    • 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
    • D06P3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/70Material containing nitrile groups
    • D06P3/76Material containing nitrile groups using basic dyes

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Description

Patentanmeldung Retardierend wirkendes Färbereihilfsmittel für das Färben von Polyacrylnitrilfaserstoffen mit kationisehen Farbstoffen Zum Färben von,Polyacrylnitrlf aserstoffen werden bevorzugt kationische Farbstoffe verwendete Diese Farbstoffe ziehen in dem verhältnismäßig eng begrenzten Temperaturbereich von cao 80 - 100 C mit relativ hoher Geschwindigkeit auf das Fasergut. Da diese Farbstoffe nicht oder nur wenig migrieren, ist der Einsatz von retardierend wirkenden Färbereihilfsmt,teln für die Durchführung der Färbungen zumeist unerläßlich. Vorwiegend kommen kationische Hilfsmittel zur Anwendung, die einen Teil der reaktionsfähigen und für die Farbstoffbindung zuständigen Gruppen im Fasermolekül blockieren. Im Verlauf des Färbevorgangs werden diese Gruppen wieder ganz oder teilweise für den Farbstoff freigegeben. Diese Produkte weisen den Nachteil auf, im Falle einer Überdosierung das .Aufziehen des Farbstoffes auf die Faser teilweise zu verhindern. Dadurch wird es unmöglich, dunkle farbstarke Färbungen zu erzielen.- Treten solche Blockierungseffekte auf, so ist es erforderlich, den Färbevorgang zu unterbrechen und in einem frisch angesetzten Färbebad ohne oder mit verringerten Hilfsmittelmengen die Färbung fortzusetzen. Ein weiterer Nachteil ist die oft zu beobachtende,selektv wirkende -Retardierung dieser Produkte auf einzelne Farbstoffe bei der .An.- -wendung von Farbstoff-Mischungen.Patent application Retarding dyeing aid for the Dyeing polyacrylonitrile fibers with cationic dyes For dyeing polyacrylonitrile As materials, preference is given to using cationic dyes. These dyes pull in the relatively narrow temperature range of about 80 - 100 C on the fiber material at a relatively high speed. Because these dyes are not or migrate only a little, is the use of retarding dyeing auxiliaries Mostly indispensable for carrying out the dyeings. Cationic ones come predominantly Aid for application, which is part of the reactive and for dye binding Block relevant groups in the fiber molecule. In the course of the staining process will be these groups are released again in whole or in part for the dye. These products have the disadvantage, in the event of an overdose, that the dye is absorbed to partially prevent the fiber. This makes it impossible to use dark colors To achieve staining - If such blocking effects occur, it is necessary to interrupt the dyeing process and put in a freshly made dye bath without or to continue the staining with reduced amounts of auxiliaries. Another disadvantage is the selective retardation of these products on individual products, which can often be observed Dyes in the application of dye mixtures.

Aus den angeführten -Gründen sind anionische Hilfsmittel entwickelt worden, welche die spezifischen nachteiligen Eigenschaften der kationischen Retarder nicht aufweisen. Allerdings bilden die kationisehen Farbstoffe mit den anionischen Anteilen, die in den Hilfsmitteln enthalten sind' schwer- bzw. unlösliche Verbindungen, die durch Dispersionsmittel in einer Dispersion gehalten werden müssen. Bei dunklen Färbungen in niederen Flottenverhältnissen und damit in -relativ konzentrierten Farbstofflöaungen werden die Dispersionssysteme oft instabil und es treten deshalb Ausfällungen der dispergierten Teilchen auf. Fleckenbildungen auf dem Fasergut sind die Folge: Dieser Nachteil der anionischen Hilfsmittel wird durch die erfindungageInä.ße Entwicklung vermieden: Es wurde gefunden, daß höher-oder hochmolekulare Polycarbonsäuren den kaiionischen Farbstoff salzartig bänden und diesen im Verlauf des Färbeprozesses an den Polyacrylnitrilfaserstoff abgeben: Das Hilfsmittel- kann. in diesem Falle als flüssige Faser betrachtet werden* die mit der festen Phase, also der Faser, um den Farbstoff konkurriert. Als Polycar- Bonsäuren im Sinne der Erfindung kommen z.B. Copolymerisate der Maleinsäure, wasserlösliche Polyacrylate und ,Aminopolycarbonsäurer in Betracht. Eine besonders gute Eignung für den angegebenen Einsatz konnte beim. Copolymerisat aus Maleinsäure und Styrol gefunden werden. Dieses Copolymerisat muß in eine Form gebracht werden, die auch im sauren Färbebad eine Wasserlöslichkeit ergibt. . Diese Bedingung wird erfüllt durch eine partielle Veresterung der Carboxylgruppen mit einem Polyalkohol, wie z.B. Glycerin, oder einem Polyglykoläther.Anionic auxiliaries have been developed for the reasons given which the specific adverse properties of the cationic retarder do not exhibit. However, the cationic dyes form with the anionic ones Proportions contained in the auxiliaries '' poorly soluble or insoluble compounds, which must be kept in a dispersion by dispersants. In the dark Dyeings in low liquor ratios and thus in relatively concentrated ones The dispersion systems are often unstable and therefore occur Precipitation of the dispersed particles. There are stains on the fiber material The consequence: This disadvantage of the anionic auxiliaries is eliminated by the invention Avoided development: It has been found that relatively high or high molecular weight polycarboxylic acids tie the kaiionic dye in a salt-like manner and this in the course of the dyeing process to the polyacrylonitrile fiber: The auxiliary can. in this case are regarded as liquid fibers * those with the solid phase, i.e. the fiber, competes for the dye. As a polycar Bonsäuren in the sense of For example, copolymers of maleic acid and water-soluble polyacrylates come from the invention and, aminopolycarboxylic acids into consideration. A particularly good suitability for the specified Use could at. Copolymer of maleic acid and styrene can be found. This Copolymer must be brought into a form that is also in the acid dye bath Water solubility results. . This condition is met by a partial esterification of the carboxyl groups with a polyalcohol such as glycerin or a polyglycol ether.

Noch wirtschaftlicher und für den angegebenen Effekt wirkungsvoller ist jedoch der Einbau von Sulfosäuregruppen in die Phenylradikale der Verbindung, wodurch ebenfalls die erforderliche Wasserlöslichkeit zu erzielen ist.Even more economical and more effective for the specified effect however, is the incorporation of sulfonic acid groups into the phenyl radicals of the compound, whereby the required water solubility can also be achieved.

Beis iel: Ein Färbebad, enthaltend 0,2 g/1 Astrazongelb 7G1 0,2 g/1 Astrazonrot GZ 092 g/1 Astr äzonblau G1 sowie 1,0 g/1 des sulfonierten Copolymerisates aus Maleinsäure und Styrol wird mit ,Ameisensäure auf einen pH-Wert von 3,5 .eingestellt. In dieser Flotte ßxird im Flottenverhältnis 1 : 40 Polya8rylnitrilflocke bei 100 C gefärbt, wobei das Färbebad von 20 C auf die Endtemperatur im Verlauf von 30 Minuten aufgeheizt wird. Im Vergleich zu einem in Rezeptur und Durchführung gleichartigen Färbevorgang, bei dem das Färbebad jedoch das erwähnte sulfonierte Copolymerisat nicht enthält, ist ein erheblicher Rückgang der Farbstoffaufziehgeschwindigkeit zu beobachten.Example: A dye bath containing 0.2 g / 1 astrazon yellow 7G1 0.2 g / 1 Astrazon red GZ 092 g / 1 astrazone blue G1 and 1.0 g / 1 of the sulfonated copolymer from maleic acid and styrene is adjusted to a pH of 3.5 with formic acid. In this liquor, polyacrylonitrile flakes in a liquor ratio of 1:40 are used at 100 C colored, the dyebath from 20 C to the final temperature in the course of 30 minutes is heated. Compared to one of the same type in formulation and implementation Dyeing process in which the dyebath, however, contains the sulfonated copolymer mentioned does not contain, there is a significant decrease in the rate of dye absorption to observe.

Claims (1)

Ans xüche s 1. Verwendung von Polyoarbonsäuren, wie Aminopolycarbonsäure, wasserlösliahe Polyaorylsäuren und Aerylsäurederivate sowie Copolymerisate der Maleinsäure als Hilfsmittel für das Färben von Polyaerylnitrilfaserstoffen mit kationisehen Farbstoff en. 2. Verfahren, nach Anspruch 1 dadurch gekennzeichnet, daß als Polycarbonsäure das Copolymerisat aus Maleinsäure und Styrol verwendet wird, Wobei die im sauren Bereich erforderliche Wasserlöslichkeit durch die Einführung von Sulfosäure- oder andere, die Löslichkeit fördernde Gruppen in die Phenylradikale der Verbindung herbelgeiührt wird. 3. Verfahren, nach Anspruch 1 dadurch gekennzeichnet, daß die -Löslichkeit durch eine partielle Veresterung der Carboxylgruppen der Verbindung mit einem Polyalkohol oder einem Polyglykoläther verestert wird.Claims 1. Use of polyarboxylic acids, such as aminopolycarboxylic acid, water-soluble polyaoryl acids and aerylic acid derivatives and copolymers of maleic acid as an aid in the dyeing of poly (aeryl nitrile) fibers with cationic eyes Dyes. 2. The method according to claim 1, characterized in that that the copolymer of maleic acid and styrene is used as the polycarboxylic acid, Whereby the water solubility required in the acidic range due to the introduction from sulfonic acid or other groups that promote solubility in the phenyl radicals the connection is brought about. 3. The method according to claim 1, characterized in that that the solubility by a partial esterification of the carboxyl groups of the compound is esterified with a polyalcohol or a polyglycol ether.
DE19681719394 1968-03-06 1968-03-06 Retarding dyeing aid for dyeing polyacrylonitrile fibers with cationic dyes Pending DE1719394A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0096944 1968-03-06

Publications (1)

Publication Number Publication Date
DE1719394A1 true DE1719394A1 (en) 1971-09-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681719394 Pending DE1719394A1 (en) 1968-03-06 1968-03-06 Retarding dyeing aid for dyeing polyacrylonitrile fibers with cationic dyes

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DE (1) DE1719394A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004029501A1 (en) * 2004-06-18 2006-01-12 Kodak Polychrome Graphics Gmbh Modified polymers and their use in the preparation of lithographic printing plate precursors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004029501A1 (en) * 2004-06-18 2006-01-12 Kodak Polychrome Graphics Gmbh Modified polymers and their use in the preparation of lithographic printing plate precursors

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