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    • 2. 发明授权
    • Receiver medium for digital imaging
    • 用于数字成像的接收器介质
    • US06894002B1
    • 2005-05-17
    • US09980584
    • 2000-06-05
    • Alan ButtersAndrew Clifton
    • Alan ButtersAndrew Clifton
    • B41J2/01B41M5/00B41M5/382B41M5/50B41M5/52G03G7/00B41M5/035B41M5/38
    • B41M5/52B41M5/504B41M5/508B41M5/5236B41M5/5254B41M5/5272G03G7/002G03G7/0026
    • A receiver medium for digital imaging comprises a substrate having a dye-receiving surface bearing a coating comprising a highly branched functionalised polymer of generally globular form, e.g. a dendrimer, dispersed in a host polymer. Functional groups at or near the surface of the branched polymer, may interact with and bind dye molecules having complementary functional groups, eg dyes as disclosed in WO 96/34766, e.g. by acid-base interaction, thus having the effect of chemically fixing the dye within the coating on the receiver medium. Because dye molecules can be chemically bound to the branched polymer in the receiver sheet, it is possible to use host polymer materials of lower Tg than generally required in the prior art, with the host polymer typically having a Tg of less that 50° C. This means that dye molecules can have significantly increased diffusivity through the coating, prior to interaction, resulting in a more even distribution of dye through the coating than has been possible hitherto. The invention also covers a method of making the receiver medium, a method of printing, and a receiver medium/dye combination.
    • 用于数字成像的接收介质包括具有染料接收表面的基底,该染料接受表面带有包含大体上球形形式的高度支化的官能化聚合物的涂层, 树枝状大分子,分散在主体聚合物中。 在支链聚合物表面处或附近的官能团可与WO 96/34766中公开的染料分子相互作用并结合具有互补官能团的染料分子,例如WO 96/34766中所公开的染料。 通过酸碱相互作用,因此具有将染料化学固定在接收介质上的涂层内的效果。 由于染料分子可以与接收片中的支化聚合物进行化学键合,所以可以使用Tg低于现有技术中通常要求的Tg的主体聚合物材料,主体聚合物通常具有小于50℃的Tg。 这意味着染料分子在相互作用之前可以通过涂层具有显着增加的扩散性,导致染料通过涂层比迄今为止可能更均匀地分布。 本发明还涉及制造接收介质的方法,印刷方法和接收介质/染料组合。
    • 10. 发明授权
    • Thermal transfer printing
    • 热转印
    • US5328886A
    • 1994-07-12
    • US985936
    • 1992-12-04
    • Roy BradburyAlan Butters
    • Roy BradburyAlan Butters
    • B41M5/385B41M5/035B41M5/388B41M5/39B41M5/38
    • B41M5/388Y10S428/913Y10S428/914
    • A thermal transfer printing sheet comprising a substrate having a coating of a disazo of Formula (1): ##STR1## wherein: each R independently is selected from --H; --CH.sub.3 ; --CN; --NO.sub.2 ; m--COT.sup.1 ; --SO.sub.2 T.sup.1 ; m--COOT.sup.2 ; --COOPh; --SO.sub.2 F; --SO.sub.2 Cl; and --COOT.sup.2 OT.sup.3;n is 1 or 2;R.sup.2 is --H or C.sub.1-4 -alkyl;R.sup.3 is --CN;R.sup.4 is --H, C.sub.1-6 -alkylCO.OC.sub.1-6 -alkyl-, C.sub.1-6 -alkylOCOC.sub.1-6 -alkyl- or C.sub.1-6 -alkyl;R.sup.5 is C.sub.1-6 -alkylCO.OC.sub.3-6 -alkyl- or C.sub.1-6 -alkylOCOC.sub.3-6 -alkyl-; andR.sup.6 is selected from --H; C.sub.1-4 -alkyl; and --NHCOT.sup.1 ; whereinT.sup.1 is C.sub.1-6 -alkyl or phenyl, T.sup.2 is C.sub.1-6 -alkyl, and T.sup.3 is C.sub.1-6 -alkyl.The above transfer printing sheets are used to produce printed receiver sheets in a dye diffusion thermal transfer printing process. The derived printed receiver sheets have good optical densities, are fast to light and heat and are particularly resistant to finger grease.
    • 一种热转印片材,其包含具有式(1)的双偶氮涂层的基材:其中:每个R独立地选自-H; -CH 3; -CN -NO2; m-COT1; -SO2T1; m-COOT2; -COOPh; -SO2F; -SO 2 Cl; 和-COOT2OT3; n为1或2; R2是-H或C 1-4 - 烷基; R3是-CN; R 4是-H,C 1-6 - 烷基,C 1 -C 1-6 - 烷基 - ,C 1-6 - 烷基OCOC 1-6 - 烷基 - 或C 1-6 - 烷基; R5是C1-6-烷基CO.OC3-6-烷基 - 或C1-6-烷基OCOC3-6-烷基 - ; 并且R 6选自-H; C 1-4 - 烷基; 和-NHCOT1; 其中T1是C1-6烷基或苯基,T2是C1-6烷基,T3是C1-6烷基。 上述转印片用于在染料扩散热转印印刷工艺中制造印刷的接收片。 衍生的印刷接收片具有良好的光密度,对光和热是快速的,并且特别耐指纹油脂。