公开(公告)号：US5582956A

公开(公告)日：1996-12-10

申请号：US430421

申请日：1995-04-28

申请人： Anne Ehret ,  John L. Marshall ,  Rita S. S. Baker ,  Larry C. Takiff ,  Stephen J. Telfer ,  John C. Warner

发明人： Anne Ehret ,  John L. Marshall ,  Rita S. S. Baker ,  Larry C. Takiff ,  Stephen J. Telfer ,  John C. Warner

IPC分类号： B41M5/28 ,  B41M5/30 ,  B41M5/323 ,  B41M5/46 ,  G03C1/73 ,  G03F7/004 ,  G03C5/00

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。