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首页> 外文期刊>Pigment & Resin Technology >Anionically surface-modified pigment/binder ink jet inks for silk fabric printing
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Anionically surface-modified pigment/binder ink jet inks for silk fabric printing

机译：用于真丝织物印刷的阴离子表面改性颜料/粘合剂喷墨油墨

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Purpose - The purpose of this paper is to prepare anionically surface-modified organic pigment/binder ink jet inks for printing on chitosan-pre-treated silk fabrics. Design/methodology/approach - Anionically surface-modified organic pigment/binder ink jet inks were prepared in four colours (cyan, magenta, yellow and black). The pigment-to-binder ratio was controlled at 1:6.4 for the cyan, magenta and yellow inks, and 1:3.4 for the black ink. Ink formulations (by weight) were assembled and mixed as follows: 8 per cent pigment dispersion, 10 per cent diethylene glycol, 12 per cent glycerol, 5 per cent urea, 10 per cent polyacrylate emulsion binder and 55 per cent deionised water. They were characterised in terms of their particle size, zeta-potential, particle morphology, viscosity, surface tension and pH. The inks were printed onto silk or the chitosan pre-treated silk fabrics using a piezo-type ink jet printer. The fabrics were then heat cured and analysed for the effect of chitosan pre-treatment on colour gamut, wash fastness and crock fastness. Findings - The formulated ink jet inks yielded an acceptably good ink jetting reliability, one-year stability and printability. The chitosan pre-treated silk fabrics gave a wider colour gamut and colour saturation than the non-treated one. Crock fastness and wash fastness of the chitosan pre-treated fabrics were relatively better than those of non-treated fabrics. Research limitations/implications - The surface-modified pigments are transparent and thus their inks printed on the chitosan pre-treated fabrics produced slightly low K/S values of cyan, magenta, yellow, and black colours because the limited chitosan concentration in the pre-treatment is controlled by its solubility in acidic solution. The higher loading of chitosan pre-treatment gave higher K/S values and a stiffer touch of the fabrics. Practical implications - The water-based pigmented inks having the sulphonate group on the pigment surface can be printed on the fabric surface pre-treated with chitosan molecules which have the protonated amino groups to give good colour appearance. It is anticipated that this type of ink can be applied to any textile surface which has been pre-treated with the protonated chitosan. Originality/value - The modified organic pigments having the sulphonate group on their surface can be used to produce novel water-based ink jet inks which can print on the chitosan pre-treated silk fabric. Ionic interactions between the sulphonate group of the pigment and protonated amino groups of chitosan in conjunction with polyacrylate binder enhance colour strength, widen colour gamut and chroma, and produce good adhesion for fabric operational properties such as wash fastness and crock fastness.
机译：目的-本文的目的是制备经过阴离子表面改性的有机颜料/粘合剂喷墨油墨，以印刷在壳聚糖预处理的丝织物上。设计/方法/方法-用四种颜色（青色，品红色，黄色和黑色）制备阴离子表面改性的有机颜料/粘合剂喷墨油墨。对于青色，品红色和黄色墨水，颜料与粘合剂的比率控制为1：6.4，对于黑色墨水，控制为1：3.4。油墨配方（按重量计）按以下方式组装和混合：8％的颜料分散液，10％的二甘醇，12％的甘油，5％的尿素，10％的聚丙烯酸酯乳液粘合剂和55％的去离子水。根据它们的粒径，ζ电势，颗粒形态，粘度，表面张力和pH值对它们进行了表征。使用压电型喷墨打印机将油墨印刷到丝绸或壳聚糖预处理的丝绸织物上。然后将织物加热固化，并分析壳聚糖预处理对色域，耐洗牢度和耐摩擦牢度的影响。发现-配制的喷墨油墨产生了可接受的良好喷墨可靠性，一年稳定性和可印刷性。壳聚糖预处理的真丝织物比未处理的织物具有更宽的色域和色彩饱和度。壳聚糖预处理织物的耐摩擦牢度和耐洗牢度相对优于未处理织物。研究的局限性/意义-表面改性的颜料是透明的，因此在壳聚糖预处理的织物上印刷的油墨产生的青色，品红色，黄色和黑色的K / S值略低，这是因为前壳中的壳聚糖浓度有限处理方法受其在酸性溶液中的溶解度控制。较高的壳聚糖预处理量会导致较高的K / S值和较硬的织物触感。实际意义-可以将在颜料表面上具有磺酸根基团的水性颜料油墨印刷在经过壳聚糖分子预处理的织物表面上，所述壳聚糖分子具有质子化的氨基基团，以提供良好的色彩外观。可以预期的是，这种类型的油墨可以施加到已经用质子化壳聚糖预处理的任何纺织品表面上。独创性/价值-在其表面具有磺酸盐基团的改性有机颜料可用于生产新型水基喷墨油墨，该油墨可在壳聚糖预处理的丝织物上印刷。颜料的磺酸盐基团和壳聚糖的质子化氨基之间的离子相互作用与聚丙烯酸酯粘合剂一起增强了色强度，拓宽了色域和色度，并为织物的操作性能（如耐洗牢度和耐牢度）提供了良好的附着力。

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