Multicolor heat-sensitive recording material
AssigneeFuji Photo Film Co., Ltd.
InventorsShintaro Washizu, Toshimasa Usami, Sumitaka Tatsuta, Jun Yamaguchi
Life of this patent
Estimating the term…
Abstract
A multicolor heat-sensitive recording material which comprises a transparent support having two or more of color-producing unit layers differing in hue of the produced color in such a situation that at least one unit layer is provided on each side of the support, wherein at least one color-producing unit layer is essentially transparent, namely, Haze % of said transparent layer is less than 40% and a multicolor heat-sensitive recording material further provided a transparent protective layer on the outermost color producing unit layer are disclosed.
Claims6
A multicolor heat-sensitive recording material which comprises a transparent support having two or more of color-producing unit layers differing in hue of the produced color in such a situation that at least two of the unit layers of differing hue are provided on opposite sides of the support, wherein at least one color-producing layer is essentially transparent, the haze % as measured with HTR meter based on integral sphere method of each of said transparent color-producing layer is less than 40% and said transparent layer is prepared by coating a composition containing a combination of a photo-decomposable diazonium compound and a coupler or a combination of an electron donating dye precursor and a color developer as a color former together with other additives;
- said combination being present in sufficient quantity within the respective layers to form a color image upon processing;
- at least said diazonium compound or electron donating dye precursor is enclosed in a microcapsule, on the other hand said coupler or color developer which exists in the composition with said microcapsule is dispersed in an emulsion obtained by dissolving said coupler or color developer into an organic solvent slightly soluble or insoluble in water then subjecting the resulting solution to an emulsifying dispersion treatment.
Dependencies are inferred from the claim text.