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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 。
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公开(公告)号：US5210064A
公开(公告)日：1993-05-11
申请号：US795102
申请日：1991-11-20
CPC分类号： B41M5/34 , B41M5/323 , B41M5/3375
摘要： The addition, to a thermal imaging medium comprising a color-forming compound which undergoes a change of color upon heating above a color-forming temperature for a color-forming time, the color-forming compound being of the cyclic sulfonamide type described in U.S. Pat. Nos. 4,720,449 and 4,960,901, of a quinone or hydroquinone increases the sensitivity of the imaging medium and helps to prevent fading of images produced therefrom while the images are being projected.
摘要翻译： 另外，对于包含成色化合物的热成像介质，在成色温度高于成色时间的情况下在加热时发生颜色变化，成色化合物为US Pat中描述的环状磺酰胺类型 。 醌或氢醌的4,720,449和4,960,901号增加了成像介质的灵敏度，并有助于防止在投影图像时由其产生的图像的褪色。
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公开(公告)号：US5206208A
公开(公告)日：1993-04-27
申请号：US795101
申请日：1991-11-20
申请人： Rong C. Liang , William C. Schwarzel , Rita S. Shon Baker , Robert P. Short , Stephen R. Sofen , Michael A. Young
发明人： Rong C. Liang , William C. Schwarzel , Rita S. Shon Baker , Robert P. Short , Stephen R. Sofen , Michael A. Young
CPC分类号： B41M5/3375 , B41M5/323
摘要： The addition, to a thermal imaging medium comprising a color-forming compound which undergoes a change of color upon heating above a color-forming temperature for a color-forming time, the color-formingcompound being of the cyclic sulfonamide type described in U.S. Pat. Nos. 4,720,449 and 4,960,901,of a source of zinc, nickel, copper(II), cobalt(II) or aluminum(III) cations increases the sensitivity of the imaging medium and helps to prevent fading of images produced therefrom while the images are being projected.
摘要翻译： 另外，对于包含成色化合物的热成像介质，在成色温度高于成色时间的情况下在加热时发生颜色变化，成色化合物为US Pat中描述的环状磺酰胺类型 。 锌，镍，铜（II），钴（II）或铝（III）阳离子源的4,720,449和4,960,901号增加了成像介质的灵敏度，有助于防止图像产生的图像的褪色 预计。
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