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首页> 外文期刊>Journal of Imaging Science and Technology >Inkjet Printability and Functional Properties of Synthetic Silicate-Filled Hydroxypropylated Starch-based Dispersion Coatings
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Inkjet Printability and Functional Properties of Synthetic Silicate-Filled Hydroxypropylated Starch-based Dispersion Coatings

机译：合成硅酸盐填充羟丙基淀粉基分散体涂料的喷墨可印刷性和功能特性

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摘要

Three-ply paperboard was coated using hydroxypropylated starch (HPS) and styrene-butadiene latex as polymeric components and kaolin or synthetic layered silicate as the functional pigment. The coatings were designed to modify the surface characteristics of the substrate to enhance the printability and barrier properties and prevent the migration of mineral oil. The substrates were printed with aqueous dye-based inkjet inks and the ink-substrate interaction and print quality characteristics such as print density, mottling, bleeding, and wet and dry ink rub resistance were determined. The coated substrates showed extraordinarily high print density values and reasonable good dry rub resistance, but low wet ink adhesion, which was ascribed to dissolution of the coating-ink interface. Water vapor transmission rate (WVTR) determinations confirmed that the coatings were sensitive to moisture, since the WVTR values more than doubled when the relative humidity was increased from 50% to 75%. The highest print density (2.66 in the 100% black area) was achieved on silicate-filled coatings, which was 97% higher than that of the uncoated reference. On kaolin-containing coatings, the print density was 60% higher than that of the uncoated reference. The AFM images revealed not only that the starch-silicate coatings were remarkably smooth, but also that they were more homogeneous than the pure starch coating. Although the resistance of the studied coatings to liquid oils was in most cases only moderate, the migration of a gaseous mineral oil simulant through the coated sample was low. A small addition of synthetic silicate effectively prevented the migration of mineral oil in the liquid phase through coatings with a solely starch binder. This work demonstrates that starch-based coatings can be designed for high-quality inkjet printing with dye-based inks and that such coatings can simultaneously inhibit the migration of mineral oil in packaging applications, suitable for e.g., hybrid printing applications. (c) 2017 Society for Imaging Science and Technology.
机译：使用羟丙基化淀粉（HPS）和苯乙烯-丁二烯胶乳作为聚合物组分，并用高岭土或合成层状硅酸盐作为功能性颜料，涂覆三层纸板。设计涂料的目的是改变基材的表面特性，以增强可印刷性和阻隔性能，并防止矿物油迁移。用水性染料基喷墨油墨印刷基材，并确定油墨与基材的相互作用和印刷质量特性，例如印刷密度，斑点，渗色以及耐干湿油墨摩擦性。涂布的基材显示出极高的印刷密度值和合理的良好的耐干擦性，但湿油墨附着力低，这归因于涂料-油墨界面的溶解。水蒸气透过率（WVTR）的测定证实了涂层对湿气敏感，因为当相对湿度从50％增加到75％时WVTR值增加了一倍以上。在填充硅酸盐的涂料中获得了最高的印刷密度（在100％黑色区域中为2.66），比未涂覆的参考涂料高97％。在含高岭土的涂料上，印刷密度比未涂覆的参考涂料高60％。 AFM图像不仅显示出淀粉-硅酸盐涂层非常光滑，而且比纯淀粉涂层更均匀。尽管在大多数情况下，所研究的涂层对液体油的抵抗力只有中等水平，但气态矿物油模拟物通过涂层样品的迁移却很低。少量添加合成硅酸盐可有效防止矿物油在液相中通过仅含淀粉粘合剂的涂料迁移。这项工作证明淀粉基涂料可以设计成使用染料基油墨进行高质量喷墨印刷，并且这种涂料可以在包装应用中同时抑制矿物油的迁移，适用于例如混合印刷应用。 （c）2017年影像科学与技术学会。

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  • 来源
    《Journal of Imaging Science and Technology》 |2017年第5期|050502.1-050502.10|共10页
  • 作者

    Mielonen Katriina; Ovaska Sami-Seppo; Koivula Hanna M.; Jalkanen Laura; Backfolk Kaj;

  • 作者单位

    Lappeenranta Univ Technol, Grp Packaging Technol, POB 20, FI-53851 Lappeenranta, Finland;

    Lappeenranta Univ Technol, Grp Packaging Technol, POB 20, FI-53851 Lappeenranta, Finland;

    Univ Helsinki, Dept Food & Environm Sci, POB 66, FIN-00014 Helsinki, Finland;

    Univ Helsinki, Dept Food & Environm Sci, POB 66, FIN-00014 Helsinki, Finland;

    Lappeenranta Univ Technol, Grp Packaging Technol, POB 20, FI-53851 Lappeenranta, Finland;

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