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High impact rigid poly styrene position relative to the colour development, as well as a process for the colour development in the interior of a high-impact poly styrene position
High impact rigid poly styrene position relative to the colour development, as well as a process for the colour development in the interior of a high-impact poly styrene position
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机译：相对于显色的高抗冲刚性聚苯乙烯位置，以及在高抗冲聚苯乙烯位置内部的显色过程
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摘要
Color images having excellent resistances to sunlight, water and rubbing are developed by bringing, in accordance with the desired pattern, an acid-reactive colorless color forming dye solution in a non-volatile organic liquid capable of dissolving or swelling polystyrene into contact with an acid color developing high impact polystyrene sheet which comprises a substrate layer consisting of a high impact polystyrene film which has been stretched in at least one direction, at least one paper-like rough surface layer provided on the substrate layer by treating the surface portion of the high impact polystyrene film with an organic liquid capable of dissolving or swelling polystyrene, and having therein numerous microvoids, and acid color developing agent for the acid-reactive colorless color forming dye, the acid color developing agent being contained in the microvoids, whereby the colorless color forming dye solution penetrates into the microvoids and forms color images inside the sheet.
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