WO2002008512A1 - Method for the printing of woven textiles, knitted fabrics and hosiery - Google Patents

Method for the printing of woven textiles, knitted fabrics and hosiery Download PDF

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Publication number
WO2002008512A1
WO2002008512A1 PCT/DE2001/002665 DE0102665W WO0208512A1 WO 2002008512 A1 WO2002008512 A1 WO 2002008512A1 DE 0102665 W DE0102665 W DE 0102665W WO 0208512 A1 WO0208512 A1 WO 0208512A1
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WO
WIPO (PCT)
Prior art keywords
substrate
coating
aqueous dispersion
self
disperse dye
Prior art date
Application number
PCT/DE2001/002665
Other languages
German (de)
French (fr)
Inventor
Thomas Kerle
Original Assignee
Thomas Kerle
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 Thomas Kerle filed Critical Thomas Kerle
Priority to EP01953927A priority Critical patent/EP1309753B1/en
Priority to DE50110165T priority patent/DE50110165D1/en
Publication of WO2002008512A1 publication Critical patent/WO2002008512A1/en

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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
    • D06P5/001—Special chemical aspects of printing textile materials
    • 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
    • D06P1/16—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 dispersed, e.g. acetate, dyestuffs
    • 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
    • D06P1/16—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 dispersed, e.g. acetate, dyestuffs
    • D06P1/20—Anthraquinone dyes
    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • 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
    • D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—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 insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • D06P1/5257—(Meth)acrylic acid
    • 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
    • D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/043—Material containing basic nitrogen containing amide groups using dispersed dyes
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/14—Wool
    • D06P3/143—Wool using dispersed dyes
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/6033—Natural or regenerated cellulose using dispersed dyes

Definitions

  • the invention relates to a method for dyeing, printing, painting or the like of substrates made of fabrics, knitted fabrics, knitted fabrics or the like. With the features of the preamble of claim 1. Furthermore, it relates to a substrate made of fabrics, knitted fabrics, knitted fabrics or the like. With the features the preamble of claim 13.
  • azo dyes have been used in the printing of textiles, in particular textiles made of natural fibers, which are carcinogenic because of the amines and halogens contained therein and their diffusing properties. Due to these health-threatening properties, the azo dyes for printing on textiles are to be banned in the near future.
  • the invention is therefore based on the object of providing a method for dyeing, printing, painting or the like of substrates made from woven or knitted fabrics, with which a qualitatively improved color printing is achieved.
  • a method for dyeing, printing, painting or the like of substrates made of fabrics, knitted fabrics or the like in which the substrate surface is first coated with an aqueous dispersion of self-crosslinking polymers.
  • the dispersion applied to the substrate is then dried, in particular at elevated temperature.
  • the self-crosslinking polymers also harden increased temperature.
  • the disperse dye can be applied to the coated substrate surface.
  • the textured surface of the woven or knitted fabric is equalized by the coating, the surface properties remaining essentially unchanged.
  • the color printing with disperse dye applied to the coated substrate surface is characterized by its high resolution and line accuracy. Another advantage is the low dye consumption.
  • the dispersion is an aqueous system and is therefore biodegradable.
  • the aqueous dispersion can also be combined with other aqueous systems.
  • the process according to the invention also has the advantage that the natural surface of the fabric, knitted or crocheted fabric, in particular in the case of textiles made from natural fibers or with a predominant natural fiber content, is retained, the dispersion does not form a tactile plastic-like film and accordingly also the dimensioning, character and color of the Tissue (with a transparent dispersion) are not affected.
  • the dispersion is also completely solvent-free, requires only a low drying temperature and a short drying time, so that the fabrics or knitted fabrics can be processed quickly.
  • Anthraquinones, anthraquinone derivatives or quinolines can be used as disperse dyes.
  • the advantage of these groups is that they contain neither halogens nor amines and are therefore not carcinogenic or hazardous to health, which is extremely important especially for textiles which are processed into clothing.
  • Chemical and / or physical additives such as. B. defoamers, fillers, etc. are added to improve the processability of the dispersion, to increase the quality of the dye application or to consciously change the fabric or knitted fabric surface.
  • the substrate can be immersed in the dispersion for uniform and quick coating.
  • the aqueous dispersion it is also possible for the aqueous dispersion to be sprayed onto the substrate or applied with a brush.
  • a further coating of an aqueous dispersion of self-crosslinking polymers can be applied to the substrate, which at the same time creates a protective layer for color printing.
  • the drying process of the aqueous dispersion applied to the substrate can preferably take place at 100 ° C. to 150 ° C., in particular at approximately 130 ° C.
  • the relatively low temperatures required for drying are therefore associated with low energy consumption.
  • the self-crosslinking polymers can be cured at about 170 ° C. for about 1 minute, so that a permanent, fully cured coating is created.
  • the disperse dye can be applied either by screen printing, transfer printing or pad printing. It is therefore possible to use the usual methods of printing, which previously could only be carried out with azo dyes with high-quality results.
  • the disperse dye applied can preferably be dried at approx. 130 ° C for approx. 1 minute.
  • the substrate according to the invention made of woven fabric, knitted fabric, knitted fabric or the like, in particular textiles made of natural fibers or with a predominant proportion of natural fibers, are distinguished by a coating of an aqueous dispersion of self-crosslinking polymers, to which a color print or a color paint made from disperse dye is applied.
  • the coating leads to a leveling of the fabric or knitted surface, so that a high quality color print with disperse dyes is achieved.
  • the disperse dye can essentially consist of anthraquinones, anthraquinone derivatives or quinolines and is therefore not associated with carcinogenic dangers due to halogens or amines.
  • Color printing and color painting is characterized by high resolution, line accuracy and exact color gradients.
  • the coating is preferably transparent, so that the coloring takes place only through the disperse dye and there is no change in color of the disperse dye.
  • the coating can be mixed with chemical or physical additives in order to change the surface of the fabric or to optimize the function of the coating as a protective layer.
  • a further coating of an aqueous dispersion of self-crosslinking polymers which represents an additional protective function of the fabric surface or the color printing, can be provided on the color printing or the color painting.
  • Fig. 1 is a flow chart of the method according to the invention.
  • Fig. 2 shows a schematic diagram of the substrate according to the invention in section
  • the substrate made of fabric or knitted fabric provides z. B. is a natural fiber fabric made of wool, cotton, silk, linen or the like. That is to be printed with disperse dyes. But it can also be a synthetic fiber fabric.
  • the substrate surface is coated with an aqueous dispersion of self-crosslinking polymers.
  • the coating leads to an equalization of the usually textured fabric surface.
  • the coating is dried at about 130 ° C. for about 30 minutes.
  • the self-crosslinking polymers are then cured at approx.
  • anthraquinone derivatives are free of halogens and amines, so they are not carcinogenic and, in conjunction with the previously applied coating, ensure high-quality color printing with regard to color and light fastness, as well as resolution and line accuracy.
  • the applied disperse dye dries out at approx. 130 ° C.
  • anthraquinone derivatives anthraquinones or quinolines can also be used as disperse dyes, which also do not contain halogens or amines and are therefore not hazardous to health.
  • the dispersion Before coating, the dispersion can be chemical and / or physical additives such. B. defoamers, fillers and the like can be added. So z. B. the dispersion can be thickened with thickeners and thus adjusted for brush or squeegee application. For a uniform coating, the textile substrate can also simply be immersed in the dispersion. As an additional step, it is possible that, after the disperse dye has dried, a further coating of an aqueous dispersion of self-crosslinking polymers is applied to the substrate, which is a protective layer for the applied color print.
  • the disperse dye can e.g. B. in screen printing, transfer printing or pad printing.
  • a manual brush application is also possible.
  • reference numeral 1 denotes the substrate made of woven or knitted fabric, which is provided with a coating 2 made of an aqueous dispersion of self-crosslinking polymers.
  • a color print 3 is applied to the coating 2.
  • the color printing 3 from disperse dye consists essentially of anthraquinones, anthraquinone derivatives or quinolines. These groups have the advantage that they do not contain the carcinogenic halogens or amines. Because of the coating 2, a high-quality color print is possible using the dyes mentioned, d. H. color print 2 is characterized by high resolution, color and light fastness.
  • the coating is characterized in that it sinks into the substrate surface and seals it, but without closing the surface. The natural surface of the fabric is preserved. In order not to influence the color of the fabric or knitted fabric, the coating 2 is transparent.
  • the coating can be mixed with chemical or physical additives.

Abstract

The invention relates to a method for the colouring, printing, painting or similar of substrates made from woven textiles, knitted fabrics, hosiery or similar, in particular textiles made from natural fibres or with a preponderant natural fibre component or similar, by means of dispersion dyestuffs, comprising the following method steps: a) coating the substrate surface with an aqueous dispersion of a self-curing polymer, b) drying the dispersion applied to the substrate, c) setting the self-curing polymers and d) application of the dispersion dyestuff to the coated substrate surface.

Description

BESCHREIBUNG DESCRIPTION
Verfahren zum Bedrucken von Geweben, Gestricken, GewirkenProcess for printing on fabrics, knitted fabrics, knitted fabrics
Die Erfindung betrifft ein Verfahren zum Färben, Bedrucken, Bemalen oder dergleichen von Substraten aus Geweben, Gestricken, Gewirk oder dergl. mit den Merkmalen des Oberbegriffes des Patentanspruchs 1. Ferner betrifft sie ein Substrat aus Geweben, Gestricken, Gewirk oder dergl. mit den Merkmalen des Oberbegriffes des Patentanspruchs 13.The invention relates to a method for dyeing, printing, painting or the like of substrates made of fabrics, knitted fabrics, knitted fabrics or the like. With the features of the preamble of claim 1. Furthermore, it relates to a substrate made of fabrics, knitted fabrics, knitted fabrics or the like. With the features the preamble of claim 13.
Bisher werden beim Bedrucken von Textilien, insbesondere von Textilien aus Naturfasern, Azofarbstoffe eingesetzt, die wegen den darin enthaltenen Aminen sowie Halogenen und deren herausdiffundierenden Eigenschaften krebserregend sind. Aufgrund dieser gesundheitsgefährdenden Eigenschaften sollen die Azofarbstoffe für das Bedrucken von Textilien in naher Zukunft verboten werden.So far, azo dyes have been used in the printing of textiles, in particular textiles made of natural fibers, which are carcinogenic because of the amines and halogens contained therein and their diffusing properties. Due to these health-threatening properties, the azo dyes for printing on textiles are to be banned in the near future.
Neben den Azofarbstoffen sind auch weitere Dispersionsfarbstoffe bekannt, wie Anthrachinon-Derivate und Chinoline, welche den Vorteil haben, daß weder Halogene noch Amine in ihnen enthalten sind. Diese bekannten Farbgruppen haben jedoch Probleme mit der Färb- und Lichtechtheit sowie mit der Auflösung der Strichgenauigkeit und den Farbverläufen bei nicht homogenen Substraten, z. B. bei Geweben, Gestricken oder Gewirken.In addition to the azo dyes, other disperse dyes are also known, such as anthraquinone derivatives and quinolines, which have the advantage that they contain neither halogens nor amines. However, these known color groups have problems with the color and light fastness and with the resolution of the stroke accuracy and the color gradients with non-homogeneous substrates, for. B. in fabrics, knitted fabrics or knitted fabrics.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zum Färben, Bedrucken, Bemalen oder dergleichen von Substraten aus Geweben oder Gestricken zur Verfügung zu stellen, mit welchem ein qualitativ verbesserter Farbdruck erreicht wird.The invention is therefore based on the object of providing a method for dyeing, printing, painting or the like of substrates made from woven or knitted fabrics, with which a qualitatively improved color printing is achieved.
Diese Aufgabe wird durch die Lehre des Patentanspruchs gelöst. Vorteilhafte Weiterbildungen des Verfahrens ergeben sich aus den Unteransprüchen 2 - 12. Ein erfindungsgemäßes Substrat aus Gewebe, Gestrick, Gewirk oder dergl. wird in den Patentansprüchen 13 bis 20 gelehrt.This task is solved by the teaching of the patent claim. Advantageous further developments of the method result from subclaims 2-12. A substrate according to the invention made of woven fabric, knitted fabric, knitted fabric or the like is taught in patent claims 13 to 20.
Erfindungsgemäß ist ein Verfahren zum Färben, Bedrucken, Bemalen oder dergleichen von Substraten aus Geweben, Gestricken oder dergl. vorgesehen, bei welchem zunächst die Substratoberfläche mit einer wäßrigen Dispersion selbstvernetzender Polymere beschichtet wird. Anschließend wird die auf das Substrat aufgebrachte Dispersion insbesondere bei erhöhter Temperatur getrocknet. Dann härten die selbstvernetzenden Polymere ebenfalls bei erhöhter Temperatur aus. Schließlich kann der Dispersionsfarbstoff auf die beschichtete Substratoberfläche aufgetragen werden. Durch die Beschichtung wird die texturierte Oberfläche des Gewebes oder Gestrickes egalisiert, wobei die Oberflächeneigenschaften im wesentlichen unverändert bleiben. Der auf die beschichtete Substratoberfläche aufgebrachte Farbdruck mit Dispersionsfarbstoff zeichnet sich durch seine hohe Auflösung und Strichgenauigkeit aus. Ein weiterer Vorteil ist auch der geringe Farbstoffverbrauch. Ein weiterer für die Umwelt positiver Aspekt besteht darin, daß die Dispersion ein wäßriges System darstellt und demnach biologisch abbaubar ist. Die wäßrige Disperison kann außerdem mit anderen wäßrigen Systemen kombiniert werden. Das erfindungsgemäße Verfahren hat weiterhin den Vorteil, daß die natürliche Oberfläche des Gewebes, Gestrickes bzw. Gewirkes, besonders bei Textilien aus Naturfasern oder mit überwiegendem Naturfaseranteil, erhalten bleibt, die Dispersion keinen fühlbaren kunststoffartigen Film bildet und demnach auch die Maßerung, Charakter und Farbe des Gewebes (bei einer transparenten Dispersion) nicht beeinflußt werden. Die Dispersion ist außerdem vollständig lösemittelfrei, erfordert eine nur geringe Trockentemperatur sowie eine kurze Trockenzeit, so daß eine rasche Weiterverarbeitung der Gewebe oder Gestricke möglich ist.According to the invention, a method for dyeing, printing, painting or the like of substrates made of fabrics, knitted fabrics or the like is provided, in which the substrate surface is first coated with an aqueous dispersion of self-crosslinking polymers. The dispersion applied to the substrate is then dried, in particular at elevated temperature. Then the self-crosslinking polymers also harden increased temperature. Finally, the disperse dye can be applied to the coated substrate surface. The textured surface of the woven or knitted fabric is equalized by the coating, the surface properties remaining essentially unchanged. The color printing with disperse dye applied to the coated substrate surface is characterized by its high resolution and line accuracy. Another advantage is the low dye consumption. Another aspect that is positive for the environment is that the dispersion is an aqueous system and is therefore biodegradable. The aqueous dispersion can also be combined with other aqueous systems. The process according to the invention also has the advantage that the natural surface of the fabric, knitted or crocheted fabric, in particular in the case of textiles made from natural fibers or with a predominant natural fiber content, is retained, the dispersion does not form a tactile plastic-like film and accordingly also the dimensioning, character and color of the Tissue (with a transparent dispersion) are not affected. The dispersion is also completely solvent-free, requires only a low drying temperature and a short drying time, so that the fabrics or knitted fabrics can be processed quickly.
Als Dispersionsfarbstoffe können Anthrachinone, Anthrachinon-Derivate oder Chinoline zum Einsatz kommen. Diese Gruppen haben den Vorteil, daß sie weder Halogene noch Amine enthalten und demnach nicht krebserregend oder gesundheitsgefährdend sind, was besonders für Textilien, die zu Bekleidung verarbeitet werden, äußerst wichtig ist.Anthraquinones, anthraquinone derivatives or quinolines can be used as disperse dyes. The advantage of these groups is that they contain neither halogens nor amines and are therefore not carcinogenic or hazardous to health, which is extremely important especially for textiles which are processed into clothing.
Ebenso können chemische und/oder physikalische Additive wie z. B. Entschäumer, Füllstoffe usw. zugesetzt werden, um die Verarbeitbarkeit der Dispersion zu verbessern, die Qualität des Farbstoffauftrages zu erhöhen oder die Gewebe- bzw. Gestrickeoberfläche bewußt zu verändern.Chemical and / or physical additives such as. B. defoamers, fillers, etc. are added to improve the processability of the dispersion, to increase the quality of the dye application or to consciously change the fabric or knitted fabric surface.
Zur gleichmäßigen und schnellen Beschichtung kann das Substrat in die Dispersion eingetaucht werden. Es ist jedoch auch möglich, daß die wäßrige Dispersion auf das Substrat aufgesprüht oder mit dem Pinsel aufgetragen wird.The substrate can be immersed in the dispersion for uniform and quick coating. However, it is also possible for the aqueous dispersion to be sprayed onto the substrate or applied with a brush.
Nach dem Auftragen sowie dem Trocknen des Dispersionsfarbstoffes kann eine weitere Beschichtung einer wäßrigen Dispersion selbstvernetzender Polymere auf das Substrat aufgetragen werden, womit gleichzeitig eine Schutzschicht für den Farbdruck geschaffen wird. Der Trocknungsvorgang der auf das Substrat aufgebrachten wäßrigen Dispersion kann vorzugsweise bei 100°C bis 150°C, insbesondere bei ca. 130°C, stattfinden. Die für die Trocknung erforderlichen, relativ niedrigen Temperaturen sind demnach mit einem geringen Energieverbrauch verbunden. Alternativ dazu ist es auch möglich, daß die Beschichtung bei Raumtemperatur vollständig trocknet.After the application and drying of the disperse dye, a further coating of an aqueous dispersion of self-crosslinking polymers can be applied to the substrate, which at the same time creates a protective layer for color printing. The drying process of the aqueous dispersion applied to the substrate can preferably take place at 100 ° C. to 150 ° C., in particular at approximately 130 ° C. The relatively low temperatures required for drying are therefore associated with low energy consumption. Alternatively, it is also possible for the coating to dry completely at room temperature.
Die Trocknung bei den oben erwähnten, erhöhten Temperaturen der auf das Substrat aufgebrachten wäßrigen Dispersion dauert ca. 10 - 60 Minuten, insbesondere ca. 30 Minuten an. Nach dieser Trocknungszeit können die beschichteten Gewebe bereits übereinander gestapelt werden.Drying at the above-mentioned, elevated temperatures of the aqueous dispersion applied to the substrate takes about 10 to 60 minutes, in particular about 30 minutes. After this drying time, the coated fabrics can already be stacked on top of each other.
Vor dem Farbstoffauftrag kann die Aushärtung der selbstvernetzenden Polymere bei ca. 170°C ca. 1 Minute lang erfolgen, so daß eine dauerhafte, vollständig ausgehärtete Beschichtung geschaffen wird. Der Dispersionsfarbstoff kann entweder im Siebdruck-, Transferdruck- oder Tampondruckverfahren aufgebracht werden. Es sind also die üblichen Verfahren zum Bedrucken möglich, die bisher nur mit Azofarbstoffen mit qualitativ hochwertigen Ergebnissen durchgeführt werden konnten.Before the dye is applied, the self-crosslinking polymers can be cured at about 170 ° C. for about 1 minute, so that a permanent, fully cured coating is created. The disperse dye can be applied either by screen printing, transfer printing or pad printing. It is therefore possible to use the usual methods of printing, which previously could only be carried out with azo dyes with high-quality results.
Um einen hochwertigen und haltbaren Farbaufdruck zu erreichen, kann der aufgetragene Dispersionsfarbstoff vorzugsweise bei ca. 130°C ca. 1 Minute lang getrocknet werden.In order to achieve a high quality and durable color print, the disperse dye applied can preferably be dried at approx. 130 ° C for approx. 1 minute.
Das erfindungsgemäße Substrat aus Gewebe, Gestricke, Gewirk oder dergl., insbesondere Textilien aus Naturfasern oder mit überwiegendem Naturfaseranteil, zeichnen sich durch eine Beschichtung aus einer wäßrigen Dispersion selbstvernetzender Polymere aus, auf die ein Farbdruck bzw. eine Farbbemalung aus Dispersionsfarbstoff aufgebracht ist. Die Beschichtung führt zu einer Egalisierung der Gewebe- bzw. Gestrickeoberfläche, so daß ein qualitativ hochwertiger Farbaufdruck mit Dispersionsfarbstoffen erreicht wird.The substrate according to the invention made of woven fabric, knitted fabric, knitted fabric or the like, in particular textiles made of natural fibers or with a predominant proportion of natural fibers, are distinguished by a coating of an aqueous dispersion of self-crosslinking polymers, to which a color print or a color paint made from disperse dye is applied. The coating leads to a leveling of the fabric or knitted surface, so that a high quality color print with disperse dyes is achieved.
Der Dispersionsfarbstoff kann im wesentlichen aus Anthrachinonen, Anthrachinon-Derivaten oder auch Chinolinen bestehen und ist demnach nicht mit krebserregenden Gefahren aufgrund von Halogenen oder Aminen verbunden. Der Farbdruck bzw. die Farbbemalung zeichnet sich durch eine hohe Auflösung, Strichgenauigkeit sowie exakten Farbverläufen aus.The disperse dye can essentially consist of anthraquinones, anthraquinone derivatives or quinolines and is therefore not associated with carcinogenic dangers due to halogens or amines. Color printing and color painting is characterized by high resolution, line accuracy and exact color gradients.
Vorzugsweise ist die Beschichtung transparent, so daß die Farbgebung lediglich durch den Dispersionsfarbstoff erfolgt und keine farbliche Veränderung des Dispersionsfarbstoffes stattfindet. Die Beschichtung kann mit chemischen oder physikalischen Additiven versetzt sein, um die Gewebeoberfläche zu verändern oder die Beschichtung in ihrer Funktion als Schutzschicht zu optimieren.The coating is preferably transparent, so that the coloring takes place only through the disperse dye and there is no change in color of the disperse dye. The coating can be mixed with chemical or physical additives in order to change the surface of the fabric or to optimize the function of the coating as a protective layer.
Auf dem Farbdruck bzw. der Farbbemalung kann eine weitere Beschichtung aus einer wäßrigen Dispersion selbstvernetzender Polymere vorgesehen sein, welche eine zusätzliche Schutzfunktion der Gewebeoberfläche bzw. des Farbdruckes darstellt.A further coating of an aqueous dispersion of self-crosslinking polymers, which represents an additional protective function of the fabric surface or the color printing, can be provided on the color printing or the color painting.
Die vorliegende Erfindung ist anhand eines vorteilhaften Ausführungsbeispiels in den Zeichnungsfiguren näher erläutert.The present invention is explained in more detail using an advantageous embodiment in the drawing figures.
Diese zeigen:These show:
Fig. 1 ein Flußdiagramm des erfindungsgemäßen Verfahrens sowieFig. 1 is a flow chart of the method according to the invention and
Fig. 2 eine Prinzipdarstellung des erfindungsgemäßen Substrates im SchnittFig. 2 shows a schematic diagram of the substrate according to the invention in section
Zur Beschreibung des erfindungsgemäßen Verfahrens zum Färben, Bedrucken, Bemalen oder dergl. von Substraten aus Geweben, Gestricken oder dergl. wird zunächst auf Fig. 1 Bezug genommen. Das Substrat aus Gewebe oder Gestricke stellt dabei z. B. ein Naturfasergewebe aus Wolle, Baumwolle, Seide, Leinen oder dergl. dar, das mit Dispersionsfarbstoffen bedruckt werden soll. Es kann sich aber auch um ein Kunstfasergewebe handeln. In einem ersten Schritt wird die Substratoberfläche mit einer wäßrigen Dispersion selbstvernetzender Polymere beschichtet. Die Beschichtung führt zu einer Egalisierung der üblicherweise texturierten Gewebeoberfläche. Um .eine ausreichende Haftung der Beschichtung zu gewährleisten, wird die Beschichtung bei ca. 130°C ca. 30 Minuten lang getrocknet. Anschließend werden die selbstvernetzenden Polymere bei ca. 170°C ausgehärtet, so daß eine stabile Beschichtung als Grundlage für den folgenden Farbaufdruck geschaffen wird. Dann erfolgt der Farbaufdruck mit einem Dispersionsfarbstoff aus der Gruppe der Anthrachinon- Derivate auf die beschichtete Substratoberfläche. Die Anthrachinon-Derivate sind frei von Halogenen und Aminen, daher nicht krebserregend und gewährleisten in Verbindung mit der vorher aufgebrachten Beschichtung einen qualitativ hochwertigen Farbaufdruck hinsichtlich von Färb- und Lichtechtheit sowie Auflösung und Strichgenauigkeit. Schließlich trocknet der aufgebrachte Dispersionsfarbstoff bei ca. 130°C aus. Alternativ zu Anthrachinon-Derivaten können als Dispersionsfarbstoffe auch Anthrachinone oder Chinoline verwendet werden, die ebenfalls keine Halogene oder Amine enthalten und demnach nicht gesundheitsgefährdend sind.For the description of the method according to the invention for dyeing, printing, painting or the like. From substrates made of fabrics, knitted fabrics or the like. Reference is first made to FIG. 1. The substrate made of fabric or knitted fabric provides z. B. is a natural fiber fabric made of wool, cotton, silk, linen or the like. That is to be printed with disperse dyes. But it can also be a synthetic fiber fabric. In a first step, the substrate surface is coated with an aqueous dispersion of self-crosslinking polymers. The coating leads to an equalization of the usually textured fabric surface. In order to ensure adequate adhesion of the coating, the coating is dried at about 130 ° C. for about 30 minutes. The self-crosslinking polymers are then cured at approx. 170 ° C., so that a stable coating is created as the basis for the following color printing. The color is then printed onto the coated substrate surface using a disperse dye from the group of the anthraquinone derivatives. The anthraquinone derivatives are free of halogens and amines, so they are not carcinogenic and, in conjunction with the previously applied coating, ensure high-quality color printing with regard to color and light fastness, as well as resolution and line accuracy. Finally, the applied disperse dye dries out at approx. 130 ° C. As an alternative to anthraquinone derivatives, anthraquinones or quinolines can also be used as disperse dyes, which also do not contain halogens or amines and are therefore not hazardous to health.
Vor der Beschichtung können der Dispersion chemische und/oder physikalische Additive wie z. B. Entschäumer, Füllstoffe und dgl. zugesetzt werden. So kann z. B. die Dispersion mit Verdickern eingedickt werden und so für den Pinsel- oder Rakelauftrag eingestellt werden. Zu einer gleichmäßigen Beschichtung kann das textile Substrat auch einfach in die Dispersion eingetaucht werden. Als zusätzlicher Schritt ist es möglich, daß nach dem Trocknen des Dispersionsfarbstoffes eine weitere Beschichtung einer wäßrigen Dispersion selbstvernetzender Polymere auf das Substrat aufgetragen wird, welche eine Schutzschicht für den aufgebrachten Farbdruck darstellt.Before coating, the dispersion can be chemical and / or physical additives such. B. defoamers, fillers and the like can be added. So z. B. the dispersion can be thickened with thickeners and thus adjusted for brush or squeegee application. For a uniform coating, the textile substrate can also simply be immersed in the dispersion. As an additional step, it is possible that, after the disperse dye has dried, a further coating of an aqueous dispersion of self-crosslinking polymers is applied to the substrate, which is a protective layer for the applied color print.
Der Dispersionsfarbstoff kann z. B. im Siebdruck-, Transferdruck- oder auch Tampondruckverfahren aufgebracht werden. Ebenso ist auch ein manuell vorgenommener Pinselauftrag möglich.The disperse dye can e.g. B. in screen printing, transfer printing or pad printing. A manual brush application is also possible.
Bei der in Fig. 2 gezeigten Prinzipdarstellung bezeichnet Bezugsziffer 1 das Substrat aus Gewebe oder Gestricke, das mit einer Beschichtung 2 aus einer wäßrigen Dispersion selbstvernetzender Polymere versehen ist. Auf der Beschichtung 2 ist ein Farbdruck 3 aufgebracht. Der Farbdruck 3 aus Dispersionsfarbstoff besteht im wesentlichen aus Anthrachinonen, Anthrachinon-Derivaten oder Chinolinen. Diese Gruppen haben den Vorteil, daß sie weder die krebserregenden Halogene noch Amine enthalten. Aufgrund der Beschichtung 2 ist ein qualitativ hochwertiger Farbaufdruck mittels der genannten Farbstoffe möglich, d. h. der Farbdruck 2 zeichnet sich durch eine hohe Auflösung, Färb- und Lichtechtheit aus. Außerdem zeichnet sich die Beschichtung dadurch aus, daß sie in die Substratoberfläche einsinkt und diese versiegelt, ohne jedoch die Oberfläche zu verschließen. Die natürliche Oberfläche des Gewebes bleibt somit erhalten. Um die Farbe des Gewebes oder Gestrickes nicht zu beeinflussen, ist die Beschichtung 2 transparent. Die Beschichtung kann mit chemischen oder physikalischen Additiven versetzt sein.In the basic illustration shown in FIG. 2, reference numeral 1 denotes the substrate made of woven or knitted fabric, which is provided with a coating 2 made of an aqueous dispersion of self-crosslinking polymers. A color print 3 is applied to the coating 2. The color printing 3 from disperse dye consists essentially of anthraquinones, anthraquinone derivatives or quinolines. These groups have the advantage that they do not contain the carcinogenic halogens or amines. Because of the coating 2, a high-quality color print is possible using the dyes mentioned, d. H. color print 2 is characterized by high resolution, color and light fastness. In addition, the coating is characterized in that it sinks into the substrate surface and seals it, but without closing the surface. The natural surface of the fabric is preserved. In order not to influence the color of the fabric or knitted fabric, the coating 2 is transparent. The coating can be mixed with chemical or physical additives.
Ferner ist es möglich, auf dem Farbdruck 3 eine weitere Beschichtung aus einer wäßrigen Dispersion selbstvernetzender Polymere vorzusehen, welche eine Schutzfunktion für den Farbdruck 3 darstellt. Furthermore, it is possible to provide a further coating of an aqueous dispersion of self-crosslinking polymers on the color printing 3, which coating represents a protective function for the color printing 3.

Claims

PATENTANSPRÜCHE
Verfahren zum Färben, Bedrucken, Bemalen oder dergleichen von Substraten ausProcess for dyeing, printing, painting or the like from substrates
Gewebe, Gestricke, Gewirk oder dergleichen, insbesondere von Textilien ausFabrics, knitted fabrics, knitted fabrics or the like, in particular from textiles
Naturfasern oder mit überwiegendem Naturfaseranteil oder dergleichen mittels DispersionsfarbstoffenNatural fibers or with a predominant natural fiber content or the like by means of disperse dyes
gekennzeichnet durch folgende Verfahrensschritte:characterized by the following process steps:
a) Beschichtung der Substratoberfläche mit einer wäßrigen Dispersion selbstvernetzender Polymere,a) coating the substrate surface with an aqueous dispersion of self-crosslinking polymers,
b) Trocknung der auf das Substrat aufgebrachten Dispersion,b) drying the dispersion applied to the substrate,
c) Aushärtung der selbstvernetzenden Polymere sowiec) curing the self-crosslinking polymers and
d) Auftragen von Dispersionsfarbstoff auf die beschichtete Substratoberfläche.d) applying disperse dye to the coated substrate surface.
2. Verfahren nach Anspruch 1,2. The method according to claim 1,
dadurch gekennzeichnet, daßcharacterized in that
als Dispersionsfarbstoffe Anthrachinone oder Anthrachinon-Derivate verwendet werden.anthraquinones or anthraquinone derivatives can be used as disperse dyes.
3. Verfahren nach Anspruch 1,3. The method according to claim 1,
dadurch gekennzeichnet, daßcharacterized in that
als Dispersionsfarbstoffe Chinoline verwendet werden.quinolines can be used as disperse dyes.
4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß4. The method according to any one of the preceding claims, characterized in that
der Dispersion chemische und/oder physikalische Additive wie z. B. Entschäumer, Füllstoffe usw. zugesetzt werden.the dispersion chemical and / or physical additives such. B. defoamers, fillers, etc. are added.
5. Verfahren nach einem der vorhergehenden Ansprüche,5. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
das Substrat zur Beschichtung in die Dispersion eingetaucht wird.the substrate is dipped into the dispersion for coating.
6. Verfahren nach einem der vorhergehenden Ansprüche,6. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
nach dem Auftragen von Dispersionsfarbstoff eine weitere Beschichtung einer wäßrigen Dispersion selbstvernetzender Polymere auf das Substrat aufgetragen wird.after the application of disperse dye, a further coating of an aqueous dispersion of self-crosslinking polymers is applied to the substrate.
7. Verfahren nach einem der vorhergehenden Ansprüche,7. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daß .characterized in that.
das mit der wäßrigen Dispersion beschichtete Substrat bei ca. 100°C bis 150°C, insbesondere bei ca. 130°C, trocknet.the substrate coated with the aqueous dispersion is dried at approximately 100 ° C. to 150 ° C., in particular at approximately 130 ° C.
8. Verfahren nach einem der vorhergehenden Ansprüche,8. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
die Trocknung der auf das Substrat aufgebrachten wäßrigen Dispersion ca. 10 min bisthe drying of the aqueous dispersion applied to the substrate takes about 10 minutes to
60 min, insbesondere ca. 30 min dauert. Lasts 60 min, in particular approx. 30 min.
9. Verfahren nach einem der vorhergehenden Ansprüche,9. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
die Aushärtung der selbstveraetzenden Polymere bei ca. 170°C ca. 1 min lang erfolgt.the self-etching polymers are cured at approx. 170 ° C. for approx. 1 min.
10. Verfahren nach einem der vorhergehenden Ansprüche,10. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
der Dispersionsfarbstoff im Transferdruckverfahren aufgebracht wird.the disperse dye is applied using the transfer printing process.
11. Verfahren nach einem der vorhergehenden Ansprüche,11. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
der Dispersionsfarbstoff im Tampondruckverfahren aufgebracht wird.the disperse dye is applied using the pad printing process.
12. Verfahren nach einem der vorhergehenden Ansprüche,12. The method according to any one of the preceding claims,
dadurch gekennzeichnet, daßcharacterized in that
der aufgetragene Dispersionsfarbstoff bei ca. 130°C ca. 1 min lang getrocknet wird.the disperse dye applied is dried at approx. 130 ° C for approx. 1 min.
13. Substrat aus Gewebe, Gestricke, Gewirk oder dergleichen, insbesondere Textilien aus13. Substrate made of fabric, knitted fabric, knitted fabric or the like, in particular textiles
Naturfasern oder mit überwiegendem Naturfaseranteil, oder dergleichen, mit einem Farbaufdruck bzw. Farbbemalung oder dergleichen aus DispersionsfarbstoffNatural fibers or with a predominant natural fiber content, or the like, with a color print or color painting or the like from disperse dye
dadurch gekennzeichnet, daß das Substrat (1) mit einer Beschichtung (2) aus einer wäßrigen Dispersion selbstvernetzender Polymere sowie einem darauf aufgebrachten Farbdruck (3) /bzw. - bemalung versehen ist.characterized in that the substrate (1) with a coating (2) of an aqueous dispersion of self-crosslinking polymers and a color print (3) / or. - painting is provided.
14. Substrat nach Anspruch 13,14. The substrate according to claim 13,
dadurch gekennzeichnet, daßcharacterized in that
der Dispersionsfarbstoff im wesentlichen aus Anthrachinonen oder Anthrachinon-the disperse dye consists essentially of anthraquinones or anthraquinone
Derivaten besteht.Derivatives.
15. Substrat nach Anspruch 13,15. The substrate according to claim 13,
dadurch gekennzeichnet, daßcharacterized in that
der Dispersionsfarbstoff im wesentlichen aus Chinolinen besteht.the disperse dye consists essentially of quinolines.
16. Substrat nach einem der Ansprüche 13-15,16. Substrate according to one of claims 13-15,
dadurch gekennzeichnet, daßcharacterized in that
die Beschichtung (2) transparent ist.the coating (2) is transparent.
17. Substrat nach einem der Ansprüche 13 -16,17. Substrate according to one of claims 13 -16,
dadurch gekennzeichnet, daßcharacterized in that
die Beschichtung (2) mit chemischen oder physikalischen Additiven versetzt ist.the coating (2) is mixed with chemical or physical additives.
18. Substrat nach einem der Ansprüche 13 - 17,18. Substrate according to one of claims 13-17,
dadurch gekennzeichnet, daß auf dem Farbdruck (3) /bzw. -bemalung eine weitere Beschichtung aus einer wäßrigen Dispersion selbstvernetzender Polymere vorgesehen ist.characterized in that on the color print (3) / or. -painting a further coating from an aqueous dispersion of self-crosslinking polymers is provided.
19. Substrat nach einem der Ansprüche 13 - 18,19. Substrate according to one of claims 13-18,
dadurch gekennzeichnet, daßcharacterized in that
die wäßrige Dispersion mit Akrylaten versetzt ist.the aqueous dispersion is mixed with acrylates.
20. Substrat nach Anspruch 19,20. The substrate according to claim 19,
dadurch gekennzeichnet, daßcharacterized in that
der Mengenanteil der Akrylate an der wäßrigen Dispersion < 40 % ist. the proportion of acrylates in the aqueous dispersion is <40%.
PCT/DE2001/002665 2000-07-22 2001-07-20 Method for the printing of woven textiles, knitted fabrics and hosiery WO2002008512A1 (en)

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EP01953927A EP1309753B1 (en) 2000-07-22 2001-07-20 Method for textile dyeing
DE50110165T DE50110165D1 (en) 2000-07-22 2001-07-20 METHOD FOR STAINING TEXTILES

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DE10035746A DE10035746A1 (en) 2000-07-22 2000-07-22 Process for printing on fabrics, knitted fabrics, knitted fabrics

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EP1762395A1 (en) * 2005-09-12 2007-03-14 PAM Berlin GmbH & Co. KG Three-step screen printing method and products thereof
CN106079945A (en) * 2016-08-01 2016-11-09 太仓市鑫泰针织有限公司 A kind of printing method of bamboo fiber knitting product

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WO2004070109A1 (en) * 2003-01-28 2004-08-19 Sara Lee Corporation Pad printing on textile substrates
US7498277B2 (en) 2003-01-28 2009-03-03 Hbi Branded Apparel Enterprises, Llc Pad printing on textile substrates
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EP1762395A1 (en) * 2005-09-12 2007-03-14 PAM Berlin GmbH & Co. KG Three-step screen printing method and products thereof
CN106079945A (en) * 2016-08-01 2016-11-09 太仓市鑫泰针织有限公司 A kind of printing method of bamboo fiber knitting product

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EP1309753A1 (en) 2003-05-14
ES2265436T3 (en) 2007-02-16

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