Coating composition comprising colloidal silica and glossy ink jet recording sheets prepared therefrom
    7.
    发明授权
    Coating composition comprising colloidal silica and glossy ink jet recording sheets prepared therefrom 失效
    包含胶体二氧化硅和由其制备的光泽喷墨记录纸的涂料组合物

    公开(公告)号:US06902780B2

    公开(公告)日:2005-06-07

    申请号:US10391286

    申请日:2003-03-18

    CPC分类号: B41M5/5218 B41M5/52

    摘要: A coating composition comprising relatively low alkali cationic colloidal silicas and ink jet recording sheets prepared from such coatings is described. The coating comprises binder and cationic colloidal silica preferably having an average particle size in the range of about 1 to about 300 nanometers and which has a solids to alkali metal ratio of at least the sum of AW(−0.013SSA+9), AW being the atomic weight of alkali metal present in the colloidal silica and SSA being the specific surface area of the silica. It has been discovered that if the alkali metal, e.g., sodium, content of colloidal silica is reduced, coatings prepared from such colloidal silica and applied to conventional ink jet recording sheet supports provide a specular gloss of at least 30 at 60° C., even at a relatively high silica solids to binder solids ratio of 1:1 or greater.

    摘要翻译: 描述了由这样的涂层制备的包含相对低的碱性阳离子胶体二氧化硅和喷墨记录片的涂料组合物。 该涂层包括粘合剂和阳离子胶态二氧化硅,其平均粒径在约1至约300纳米范围内,其固体与碱金属之比至少为AW(-0.013SSA + 9),AW为 存在于胶体二氧化硅中的碱金属的原子量和SSA为二氧化硅的比表面积。 已经发现,如果碱性金属(例如钠)含量降低,则由这种胶态二氧化硅制备的涂料涂覆到传统的喷墨记录片材载体上,在60℃下提供至少30°的镜面光泽度, 即使在相对高的二氧化硅固体与粘合剂固体比为1:1或更高的情况下。

    Coating composition comprising colloidal silica and glossy ink jet recording sheets prepared therefrom
    9.
    发明授权
    Coating composition comprising colloidal silica and glossy ink jet recording sheets prepared therefrom 失效
    包含胶体二氧化硅和由其制备的光泽喷墨记录纸的涂料组合物

    公开(公告)号:US06896942B2

    公开(公告)日:2005-05-24

    申请号:US10391270

    申请日:2003-03-18

    摘要: A coating composition comprising cationic colloidal silicas and ink jet recording sheets prepared from such coatings is described. The coating comprises binder and polydispersed cationic colloidal silica. The cationic colloidal silica preferably has an average particle size in the range of about 1 to about 300 nanometers. It has been discovered that if a cationic polydispersed colloidal silica is employed in a glossy coating formulation, the coating provides a specular gloss of at least 30 at 60° C., even at a relatively high silica solids to binder solids ratio of 1:1 or greater, but also a coating having good to excellent printability characteristics.

    摘要翻译: 描述了由这样的涂层制备的包含阳离子胶体二氧化硅和喷墨记录片的涂料组合物。 涂层包括粘合剂和多分散阳离子胶体二氧化硅。 阳离子胶体二氧化硅的平均粒径优选在约1至约300纳米的范围内。 已经发现,如果在光泽涂层制剂中使用阳离子多分散胶体二氧化硅,则涂层在60℃下提供至少30°的镜面光泽,即使在相对高的二氧化硅固体与粘合剂固体比为1:1的条件下 以上,也可以是具有优异的印刷特性的涂层。