空心球 | 陶氏公司

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使用空心球颜料突破常规的应用局限

ROPAQUE™空心球聚合物颜料最初设计用于建筑涂料，作为二氧化钛的部分替代品，因为二氧化钛虽然是一种值得信赖的光散射颜料，但价格通常很昂贵。该技术已扩展到造纸行业，用作光泽剂，特别适用于热敏纸涂料。

热敏纸涂料的突破

ROPAQUE™技术不是依靠化学显影剂来创造图像，而是仅依靠纸张涂料中的空气形成的微孔隙来让图像显影。生成的热敏纸可与现有的任意热敏打印机一起使用，与传统的热敏纸选项不同，它可提供永久性和防褪色的图像。而且，它仅含有经批准可用于食品接触应用的材料。

用于Blue4est热敏纸的ROPAQUE™ NT-2900不透明聚合物的开发获得了2017年美国EPA总统绿色化学奖。这项创新是同类产品中的首创，为热敏纸行业提供了不含化学显影剂的可持续发展选项。

优点：

显著提高光散射效率，同时保持涂料性能
有可能在相同的干遮盖下降低TiO₂需求
从低到高的宽配方范围
碳排放比TiO₂低
通过间隔效应提高TiO₂效率
低VOC
涂料高耐擦洗性和清洁性
纸和纸板涂料的光泽、不透明度和亮度显影
有利于降低水性涂料的成本

Blue4est^® is a trademark of Papierfabrik August Koehler Se, used with permission

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