Process for fixing an image, and medium for use therein
    21.
    发明授权
    Process for fixing an image, and medium for use therein 失效
    用于固定图像的方法和用于其中的介质

    公开(公告)号:US5741630A

    公开(公告)日:1998-04-21

    申请号:US232757

    申请日:1994-04-25

    CPC分类号: G03F7/0045 B41M5/30 G03C1/73

    摘要: A process for producing and fixing an image uses an imaging medium comprising an acid-generating layer or phase comprising a mixture of a superacid precursor, a sensitizer and a secondary acid generator, and a color-change layer comprising an image dye. The sensitizer can absorb radiation of a sensitizer wavelength which does not, in the absence of the sensitizer, cause decomposition of the superacid precursor to form the corresponding superacid. The secondary acid generator is capable of acid-catalyzed thermal decomposition by the first acid to form a second acid, and the image dye undergoes a color change upon contact with the second acid. The medium is imagewise exposed to radiation of the sensitizer wavelength, thereby causing the sensitizer, in exposed areas, to decompose superacid precursor with formation of the fist acid. The medium is then heated to cause, in the exposed areas, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the second acid. The components of the acid-generating and color-change layers or phases are mixed so that in exposed areas, the second acid causes the image dye to change color. At least the non-exposed areas, a copper compound and a reactive material more reactive than the image dye to the products resulting from decomposition of the superacid precursor in the presence of the copper compound, are used to decompose the superacid precursor and fix the image.

    摘要翻译: 用于制备和定影图像的方法使用包含酸产生层或包含超酸前体,敏化剂和次生酸发生剂的混合物的相位的成像介质和包含图像染料的变色层。 敏化剂可以吸收敏化剂波长的辐射,其在不存在敏化剂的情况下不会导致超酸前体分解形成相应的超强酸。 二次酸产生剂能够通过第一种酸进行酸催化热分解以形成第二种酸,并且图像染料在与第二种酸接触时经历颜色变化。 介质被成像地暴露于敏化剂波长的辐射,从而使曝光区域中的敏化剂在形成第一酸时分解超酸前体。 然后将介质加热以在暴露的区域中引起二次酸发生器的酸催化热分解和第二酸的形成。 将酸产生和变色层或相的组分混合,使得在曝光区域中,第二种酸引起图像染料改变颜色。 使用未曝光区域,铜化合物和比图像染料反应性更高的反应性物质,在由铜化合物存在的情况下由超强酸前体分解而产生的产物,分解超酸前体并固定图像 。

    Imaging medium
    22.
    发明授权
    Imaging medium 失效
    成像介质

    公开(公告)号:US5631118A

    公开(公告)日:1997-05-20

    申请号:US430420

    申请日:1995-04-28

    CPC分类号: B41M5/30 G03C1/73 G03F7/0045

    摘要: A process for producing an image uses an imaging medium comprising an acid-generating layer or phase comprising a mixture of a superacid precursor, a sensitizing dye and a secondary acid generator, and a color-change layer comprising an image dye. The sensitizing dye has first and second forms, the first form having substantially greater substantial absorption in a first wavelength range than the second form. The superacid precursor is capable of being decomposed to produce superacid by radiation in a second wavelength range, but is not, in the absence of the sensitizing dye, capable of being decomposed by radiation in the first wavelength range. The secondary acid generator is capable of acid-catalyzed thermal decomposition by unbuffered superacid to form a secondary acid. While at least part of the sensitizing dye is in its first form, the medium is imagewise exposed to radiation in the first wavelength range, thereby causing, in the exposed areas of the acid-generating layer, the formation of unbuffered superacid. The medium is then heated to cause, in the exposed areas, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the secondary acid. The components of the acid-generating and color-change layers or phases are then mixed so that the secondary acid causes a change in color of the image dye, and the sensitizing dye is converted to its second form. The acid-generating layer or phase desirably includes a cosensitizer which is a reducing agent less basic than the secondary acid generator.

    摘要翻译: 用于制备图像的方法使用包含酸产生层或包含超强酸性前体,敏化染料和次级酸产生剂的混合物的相位的成像介质和包含图像染料的变色层。 敏化染料具有第一和第二形式,第一形式在比第二形式的第一波长范围内具有显着更大的实质吸收。 超酸前体能够通过在第二波长范围内的辐射分解产生超强酸,但是在不存在敏化染料的情况下,能够在第一波长范围内被辐射分解。 二次酸发生器能够通过无缓冲的超强酸进行酸催化的热分解以形成二次酸。 虽然至少部分敏化染料处于其第一种形式,但介质在第一波长范围内成像曝光于辐射,从而在酸产生层的暴露区域中形成无缓冲的超强酸。 然后将介质加热以在暴露的区域中引起二次酸发生器的酸催化热分解和二次酸的形成。 然后将酸产生和变色层或相的组分混合,使得次级酸引起图像染料的颜色变化,并且将敏化染料转化为其第二种形式。 酸产生层或相需要包含辅助剂,其是比次级酸发生剂更碱性的还原剂。

    Process for fixing an image, and medium for use therein
    25.
    发明授权
    Process for fixing an image, and medium for use therein 失效
    用于固定图像的方法和用于其中的介质

    公开(公告)号:US5582956A

    公开(公告)日:1996-12-10

    申请号:US430421

    申请日:1995-04-28

    CPC分类号: G03F7/0045 B41M5/30 G03C1/73

    摘要: A process for producing and fixing an image uses an imaging medium comprising an acid-generating layer or phase comprising a mixture of a superacid precursor, a sensitizer and a secondary acid generator, and a color-change layer comprising an image dye. The sensitizer can absorb radiation of a sensitizer wavelength which does not, in the absence of the sensitizer, cause decomposition of the superacid precursor to form the corresponding superacid. The secondary acid generator is capable of acid-catalyzed thermal decomposition by the first acid to form a secondary acid, and the image dye undergoes a color change upon contact with the secondary acid. The medium is imagewise exposed to radiation of the sensitizer wavelength, thereby causing the sensitizer, in exposed areas, to decompose superacid precursor with formation of the fist acid. The medium is then heated to cause, in the exposed areas, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the secondary acid. The components of the acid-generating and color-change layers or phases are mixed so that in exposed areas, the secondary acid causes the image dye to change color. At least the non-exposed areas, there is reacted with the superacid precursor a reactive material which irreversibly destroys the superacid precursor, thus fixing the image.

    摘要翻译: 用于制备和定影图像的方法使用包含酸产生层或包含超酸前体,敏化剂和次生酸发生剂的混合物的相位的成像介质和包含图像染料的变色层。 敏化剂可以吸收敏化剂波长的辐射,其在不存在敏化剂的情况下不会导致超酸前体分解形成相应的超强酸。 二次酸发生器能够通过第一种酸进行酸催化热分解以形成二次酸,并且当与次级酸接触时,图像染料发生颜色变化。 介质被成像地暴露于敏化剂波长的辐射,从而使曝光区域中的敏化剂在形成第一酸时分解超酸前体。 然后将介质加热以在暴露的区域中引起二次酸发生器的酸催化热分解和二次酸的形成。 将酸产生和变色层或相的组分混合,使得在曝光区域中,次级酸引起图像染料改变颜色。 至少未暴露的区域,与超酸前体反应是反应性材料,其不可逆地破坏超强酸前体,从而固定图像。

    Process for generation of unbuffered super-acid and for imaging
    26.
    发明授权
    Process for generation of unbuffered super-acid and for imaging 失效
    产生无缓冲超酸和成像的方法

    公开(公告)号:US5578424A

    公开(公告)日:1996-11-26

    申请号:US376037

    申请日:1995-01-20

    摘要: Acid can be generated by exposing a mixture of a superacid precursor and a dye to actinic radiation of a first wavelength which does not, in the absence of the dye, cause decomposition of the superacid precursor to form the corresponding superacid, thereby causing absorption of the actinic radiation and decomposition of part of the superacid precursor, with formation of a protonated product derived from the dye, then irradiating the mixture with actinic radiation of a second wavelength, thereby causing decomposition of part of the remaining superacid precursor, with formation of unbuffered superacid. Preferably, following these irradiations, the imaging medium is heated while the superacid is admixed with a secondary acid generator capable of being thermally decomposed to form a second acid, the thermal decomposition of the secondary acid generator being catalyzed by the presence of the superacid. The acid generation process may be used for imaging by bringing the superacid or second acid into contact with an acid-sensitive material which changes color on contact with acid, or the superacid may be used to trigger polymerization, depolymerization or other reactions.

    摘要翻译: 可以通过将超强酸前体和染料的混合物暴露于第一波长的光化辐射而产生酸,在第一波长的光化辐射下,在不存在染料的情况下,超级酸性前体不会分解形成相应的超强酸,从而引起吸收 光化辐射和部分超酸前体的分解,形成衍生自染料的质子化产物,然后用第二波长的光化辐射照射混合物,从而导致部分剩余的超酸前体分解,形成无缓冲的超酸 。 优选地,在这些照射之后,加热成像介质,同时将超强酸与能够热分解形成第二酸的次级酸发生剂混合,二次酸产生剂的热分解由超强酸的存在催化。 酸生成方法可以通过使超酸或第二酸与酸接触改变颜色的酸敏感材料接触而使用,或者超酸可用于引发聚合,解聚或其它反应。

    Imaging medium and process for producing an image
    28.
    发明授权
    Imaging medium and process for producing an image 失效
    成像介质和制作图像的过程

    公开(公告)号:US5441850A

    公开(公告)日:1995-08-15

    申请号:US232725

    申请日:1994-04-25

    CPC分类号: B41M5/30 G03C1/73 G03F7/0045

    摘要: A process for producing an image uses an imaging medium comprising an acid-generating layer or phase comprising a mixture of a superacid precursor, a sensitizing dye and a secondary acid generator, and a color-change layer comprising an image dye. The sensitizing dye has a unprotonated form and a protonated form, the protonated form having substantially greater substantial absorption in a first wavelength range than the unprotonated form. The superacid precursor is capable of being decomposed to produce superacid by radiation in a second wavelength range, but is not, in the absence of the sensitizing dye, capable of being decomposed by radiation in the first wavelength range. The secondary acid generator is capable of acid-catalyzed thermal decomposition by unbuffered superacid to form a second acid. While at least part of the sensitizing dye is protonated, the medium is imagewise exposed to radiation in the first wavelength range, thereby causing, in the exposed areas of the acid-generating layer, the formation of unbuffered superacid. The medium is then heated to cause, in the exposed areas, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the second acid. The components of the acid-generating and color-change layers or phases are then mixed so that the second acid causes a change in color of the image dye, and sufficient base is introduced into the unexposed areas to restore the sensitizing dye to its unprotonated form.

    摘要翻译: 用于制备图像的方法使用包含酸产生层或包含超强酸性前体,敏化染料和次级酸产生剂的混合物的相位的成像介质和包含图像染料的变色层。 敏化染料具有未质子化形式和质子化形式,质子化形式在第一波长范围内具有比未质子化形式显着更大的实质吸收。 超酸前体能够通过在第二波长范围内的辐射分解产生超强酸,但是在不存在敏化染料的情况下,能够在第一波长范围内被辐射分解。 二次酸发生器能够通过无缓冲的超强酸进行酸催化的热分解以形成第二酸。 当致敏染料的至少一部分被质子化时,介质被成像地暴露于第一波长范围内的辐射,从而在酸产生层的暴露区域中形成无缓冲的超强酸。 然后将介质加热以在暴露的区域中引起二次酸发生器的酸催化热分解和第二酸的形成。 然后将酸产生和变色层或相的组分混合,使得第二酸引起图像染料的颜色变化,并且将足够的碱引入未曝光区域以将致敏染料恢复至其未质子化形式 。

    Multi-color electrophoretic displays
    29.
    发明授权
    Multi-color electrophoretic displays 有权
    多色电泳显示

    公开(公告)号:US08797634B2

    公开(公告)日:2014-08-05

    申请号:US13300040

    申请日:2011-11-18

    IPC分类号: G02B26/00 G09G3/34

    摘要: An electrophoretic display (100) has stacked first (104) and second (120) electrophoretic layers, each comprising charged particles (W, C, Y, M) in a fluid (106, 122). The first layer contains particles of white (W) and first color (M) particles and has three optical states (a) white particles adjacent a viewing surface; (b) first color particles lie adjacent the viewing surface; and (c) both types of particles shuttered to allow light to pass through the first layer. The second layer contains particles having second (C) and third (Y) colors and has three optical states (d) second particles (C) adjacent the first layer; (e) third particles (Y) adjacent the first layer; and (f) second (C) and third (Y) particles intermixed within the fluid.

    摘要翻译: 电泳显示器(100)具有堆叠在第一(104)和第二(120)电泳层中,每个电泳层包含流体(106,122)中的带电粒子(W,C,Y,M)。 第一层包含白色(W)和第一颜色(M)颗粒的颗粒,并具有三个光学状态(a)与观察表面相邻的白色颗粒; (b)第一颜色颗粒位于观察表面附近; 和(c)两种类型的颗粒被切断以允许光通过第一层。 第二层含有具有第二(C)和第三(Y)颜色的颗粒,并且具有三个光学状态(d)与第一层相邻的第二颗粒(C); (e)与第一层相邻的第三颗粒(Y); 和(f)混合在流体内的第二(C)和第三(Y)颗粒。