摘要:
This invention provides a transparent thermal recording medium comprising: a thermal recording layer, which is provided on a transparent layer and comprises an electron-donating chromophoric compound, an electron-accepting compound and binder resin; and a further-provided protective layer having an approximately equal refractive index to the refractive index of the thermal recording layer, wherein the binder resin is a compound having a group selected from a hydroxyl group and a carboxyl group. The transparent thermal recording medium can be effectively used for a block copy film, on which an image is formed, for plate-making, particularly, in photogravure, offset printing and screen process printing, because the transparent thermal recording medium has a contrast of light transmission factors between a color-imaging portion and a non-imaging portion, in which the contrast is not less than 50% at a wavelength ranging from 370 nm to 450 nm.
摘要:
A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a phenolic compound, each having a straight chain or branched chain alkyl group or alkyenyl group having 12 or more carbon atoms, the electron-donor coloring compound and the electron-acceptor compound being capable of reacting to induce color formation in the reversible thermosensitive coloring composition at the eutectic temperature thereof. The electron-donor coloring compound and the electron-acceptor compound, when fused and colored in a mixed state, with application of heat thereto, followed by rapidly cooling the fused mixture, exhibit an exothermic peak in a temperature elevation process in a differential scanning calorific analysis or in a differential thermal analysis. A recording medium and display medium using the above reversible thermosensitive coloring composition, a recording method of using the recording medium, a display method of using the display medium, a display method of using the display medium, and a display apparatus using the display medium are disclosed.
摘要:
A recording ink containing at least a solid component which contains a colorant and a resin and is a solid at 25°C, a liquid component which has a higher boiling point than that of water and is a liquid at 25°C and water, wherein the total content of the liquid component in the recording ink is 20% by mass or less, the total content of the solid component in the recording ink is 20% by mass or more, and the total content of a resin component in the solid component is 40% by mass to 95% by mass relative to a total amount of the solid component is provided.
摘要:
A recording ink containing at least a solid component which contains a colorant and a resin and is a solid at 25°C, a liquid component which has a higher boiling point than that of water and is a liquid at 25°C and water, wherein the total content of the liquid component in the recording ink is 20% by mass or less, the total content of the solid component in the recording ink is 20% by mass or more, and the total content of a resin component in the solid component is 40% by mass to 95% by mass relative to a total amount of the solid component is provided.
摘要:
This invention concerns a thermal recording medium for a block copy, comprising:
a supporting member, and a thermal recording layer provided on said supporting member, said thermal recording layer including an electron-donating chromophoric compound, an electron-accepting compound and a binder resin, wherein said thermal recording medium has a high light transmission factor at a wavelength ranging from 350nm to 700nm, a color-producing imaging portion of said thermal recording medium formed by thermal energy having absorption peaks at a wavelength ranging from 350nm to 470nm and a wavelength ranging from 470nm to 700nm respectively, the difference in light transmission factor between said color-producing imaging portion and a non-imaging portion being over 35%.
摘要:
A thermosensible recording layer is provided on a carrier body and is mainly composed of electron donative coloration compound, and electron acceptor compound, together with binder resin. The thermosensible recording medium includes 500 through 5,000 ppm of organic solvent, and the organic solvent has a dielectric constant of 2.0 through 25.0 at 20°C, and has a vapor pressure of 10 through 200 mmHg at 20°C. A protective layer is provided on the thermosensible recording layer. The organic solvent is included in the thermosensible layer and the protective layer.
摘要:
A method of reversible selective manifestation of different states of a functional element is disclosed. The functional element is composed of at least two compounds and is capable of alternatively assuming (a) a first state in which the two compounds interact to form a regular aggregate structure, or (b) a second state in which the two compounds do not interact, and at least one of the two compounds is in an aggregate or crystallized state. The respective conditions for attaining one of the two states can be reversibly and extremely speedily controlled, for instance, by use of a heat application device.