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    • 10. 发明授权
    • No-carbon copying paper
    • 无碳复印纸
    • US4387913A
    • 1983-06-14
    • US299225
    • 1981-09-03
    • Takahiro ToriiHideaki Senoh
    • Takahiro ToriiHideaki Senoh
    • B41M5/132B41M5/155B41M5/22
    • B41M5/1555Y10S428/914Y10T428/31895Y10T428/31906Y10T428/31931
    • There is disclosed no-carbon copying paper composed fundamentally of a color former sheet produced by coating a support with microcapsules containing a colorless electron-donative organic compound as a color former and a color developer sheet produced by coating a support with a coating color containing activated clay as a color developer which adsorbs the aforesaid electron-donative organic compound to develop color. When said coating color is prepared by adding a polyvinyl alcohol, a styrene-butadiene latex and a wax emulsion to the activated clay, it becomes possible to apply it at a high concentration and there are accomplished the maintenance of surface strength of the color developer sheet, the decrease in stains on the blanket and the improvement in sunlight resistance of the colored characters and in the aptitude for pasting.
    • 公开了基本上由通过用含有无色电子给体有机化合物作为成色剂的微胶囊涂布载体而产生的成色片材的无碳复印纸和通过用包含活化的涂层颜料涂覆载体而制备的彩色显影剂片材 粘土作为吸附上述给电子有机化合物以显色的显色剂。 当通过向活化的粘土中加入聚乙烯醇,苯乙烯 - 丁二烯胶乳和蜡乳液制备所述涂料颜色时,可以以高浓度施加它,并且实现了彩色显影剂片材的表面强度的维持 ,毯子上的污渍减少,彩色人物的耐光性和粘贴能力的提高。