Coating composition comprising colloidal silica and glossy ink jet recording sheets prepared therefrom
    21.
    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:US07622170B2

    公开(公告)日:2009-11-24

    申请号:US10391044

    申请日:2003-03-18

    CPC classification number: B41M5/5218 C08K3/36 C09D7/62 C09D7/67 C09D7/68

    Abstract: A coating composition comprising low sodium containing colloidal silicas and ink jet recording sheets prepared from such coatings are described. The coating comprises binder and 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.

    Abstract translation: 描述了由这种涂层制备的包含低钠含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胶态二氧化硅,其平均粒度优选在约1至约300纳米范围内,并且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是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
    23.
    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:US06893691B2

    公开(公告)日:2005-05-17

    申请号:US10391287

    申请日:2003-03-18

    CPC classification number: B41M5/5218

    Abstract: A coating composition comprising a relatively low alkali-containing colloidal silica and glossy ink jet recording sheets prepared from such coatings is described. The coating comprises binder and colloidal silica, e.g., having an average particle size in the range of about 1 to about 300 nanometers. The low alkali colloidal silica of this invention comprises ammonia, polydispersed colloidal silica, or both. Polydispersed silicas having a particle size distribution such that the median particle size is in the range of 15 to 100 nanometers and 80% of the particles span a range of at least about 30 to about 70 nanometers are preferred. It has been discovered that coatings prepared from such colloidal silica and applied to conventional ink jet recording sheet supports have a specular gloss of at least 30 at 60° C., and excellent printability at silica solids to binder solids ratio of 1:1 or greater.

    Abstract translation: 描述了包含相对低的含碱胶体二氧化硅和由这种涂层制备的光泽喷墨记录片的涂料组合物。 该涂层包括粘合剂和胶态二氧化硅,例如其平均粒度在约1至约300纳米的范围内。 本发明的低碱性胶体二氧化硅包括氨,多分散胶体二氧化硅或两者。 具有粒度分布使得中值粒径在15至100纳米范围内的多分散二氧化硅,并且80%的颗粒跨越至少约30至约70纳米的范围是优选的。 已经发现,由这种胶体二氧化硅制备的并且应用于常规喷墨记录片材载体的涂层在60℃下具有至少30°的镜面光泽度,并且在二氧化硅固体与粘合剂固体比率为1:1或更高时具有优异的可印刷性 。

    Formulation suitable for ink receptive coatings
    24.
    发明授权
    Formulation suitable for ink receptive coatings 有权
    适用于油墨接受涂料的配方

    公开(公告)号:US06780920B2

    公开(公告)日:2004-08-24

    申请号:US10305041

    申请日:2002-11-26

    Abstract: Formulations comprising novel porous metal oxide particles and binder are particularly suitable for ink receptive coatings, e.g., for ink jet papers and films. The metal oxide particles used in this application have a porous structure that differs significantly from the nonporous silica colloids. The particles have a median particle size in the range of about 0.05 to about 3 microns and porosity such that when an aqueous dispersion of the particles is dried at least 0.5 cc/g of pore volume is from pores having a pore size of 600 Å or less. The particles also have a viscosity derived pore volume of at least 0.5 cc/g. Formulations comprising particles having a zeta potential of +20 mV are also disclosed.

    Abstract translation: 包含新型多孔金属氧化物颗粒和粘合剂的制剂特别适用于油墨接受涂层,例如用于喷墨纸和薄膜。 在本申请中使用的金属氧化物颗粒具有与无孔二氧化硅胶体显着不同的多孔结构。 颗粒具有在约0.05至约3微米范围内的中值粒度和孔隙率,使得当颗粒的水分散体干燥至少0.5cc / g的孔体积时,来自孔径为600埃的孔,或 减。 颗粒还具有至少0.5cc / g的粘度导出孔体积。还公开了包含ζ电位为+ 20mV的颗粒的模型。

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