摘要:
The present invention provides a method for making a lithographic printing plate comprising the steps of:(1) image-wise exposing to light an imaging element comprising (i) on a hydrophilic surface of a lithographic base an image forming layer comprising hydrophobic thermoplastic polymer particles capable of coalescing under the influence of heat and dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image forming layer or a layer adjacent thereto;(2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and supplying an aqueous dampening liquid and/or ink to said image forming layer while rotating said print cylinder.
摘要:
A thermosensitive composition consisting of a mixture of polyacrylic acid, a salt of a long chain fatty acid such as silver behenate, an infra-red absorbent and modifiers such as additional polymers and fillers. Both the water solubility and affinity to water and oil are changed when composition is heated.
摘要:
A thermographic material is disclosed which comprises a support and provided thereon, a recording layer containing a photolytic free radical generating agent capable of providing a free radical on absorption of light, a dye decolored by the free radical, and an anti-decolorizing agent, the photolytic free radical generating agent and dye being contained in a microcapsule in the recording layer, and the anti-decolorizing agent being present outside the microcapsule in the recording layer, wherein an image is formed by imagewise heating the thermographic material to mix the anti-decolorizing agent with the photolytic free radical generating agent and the dye to form a latent image, and then exposing the heated material to light which the photolytic free radical generating agent absorbs, so that the dye at the latent image portions is not decolored and the dye at portions other than the latent image portions is decolored.
摘要:
The present invention provides a heat mode recording material comprising on a flexible support having an oleophilic surface (i) a recording layer containing a light-to-heat converting substance capable of converting radiation into heat and (ii) an oleophobic surface layer, wherein said oleophobic surface layer and said recording layer may be the same layer, characterized in that the kinetic coefficient of friction (.mu..sub.k) of said material when sliding one side of said material over the other side of said material is not more than 2.6.
摘要:
The reversible heat-sensitive recording material of the present invention has a substrate and provided thereon a reversible heat-sensitive recording layer containing an organic low molecular weight substance and is provided with an adhesive layer on an opposite face to the reversible heat-sensitive recording layer via a cushioning layer.Not only the reversible heat-sensitive recording material of the present invention can readily be recorded and erased repeatedly by heating but also it can readily be adhered as well on an object having large unevenness and undulations on a surface, and it can be applied for displaying a visible information in various cards.
摘要:
A heat sensitive recording material is provided which can be simply prevented from falsification and is excellent in contrast between fixed portion and image portion, and a recording method using it is further provided. Moreover, there is provided a heat sensitive recording material capable of carrying out multicolor recording which is excellent in contrast of the image portions, density of the image portions, and image storage stability. That is, the present invention provides a heat sensitive recording material comprising a support and, provided thereon, one or a plurality of heat sensitive recording layers which contains at least one water-insoluble resin selected from the group consisting of an aromatic resin, a resin having a low or no acid value and a resin having a carbonyl group and an alicyclic unit, a heat sensitive recording material in which substantially no crystallized color developer is contained in a mixed melt obtained by mixing a given amount of the resin and a given amount the color developer, heating and melting the mixture and, then, leaving the melt to cool, and a recording method which carries out simultaneously the formation of an image portion by applying a low energy and the formation of a fixed portion by applying a high energy by a heating means on the above heat sensitive recording material by a thermal head.
摘要:
A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.
摘要:
A reversible thermal recording medium having a core material capable of being change in state by heat and a recording layer including capsules containing this core material. A repeatability corresponding to the limit of possible repeated recording/erasing effected by a physical or chemical change in the material constituting the recording can be obtained. A deterioration in image quality caused by transfer of a part of the recording layer to the heating unit can be prevented and repeat characteristics can be improved, thereby limiting the running cost.
摘要:
A thermosensitive recording material with a high resistance to fogging has a thermosensitive colored image-forming layer formed on a support and includes at least one colorless dye precursor, a color-developing agent and a binder, the dye precursor being contained in a plurality of fine solid composite particles prepared by dissolving a solute including the dye precursor in a solvent which includes a polymerization component including a polyvalent isocyanate compound; emulsifying the resultant solution in an aqueous medium; and subjecting the aqueous emulsion to a polymerization reaction to thereby form the fine solid composite particles in which the dye precursor is solid-dissolved in a solid thermoplastic resin matrix formed from a resultant polyurea or polyurethane polyurea resin.
摘要:
An image formation method of a reversible thermosensitive recording material capable of reversibly switching its transparency or color tone depending on the temperature thereof is disclosed, which includes the steps of recording images therein at a predetermined image forming temperature, erasing the recorded images from the recording material at a predetermined image erasing temperature, and cleaning the surface of the reversible thermosensitive recording material using cleaning means at substantially the same temperature as the image erasing temperature, with the image erasing step and the cleaning step being carried out substantially at the same time.