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Heat sensitive diazo type recording material utilizing microencapsulated diazo compound and a coupling component
Heat sensitive diazo type recording material utilizing microencapsulated diazo compound and a coupling component
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机译:利用微囊化的重氮化合物和偶联组分的热敏重氮型记录材料
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摘要
A recording material comprising a support coated with a photosensitive layer comprising a photosensitive diazo compound enclosed in microcapsules and a coupling component. The microcapsules are produced by forming an organic solution containing the diazo compound and a wall monomer, and emulsifying the organic solution in an aqueous solution containing an anionic surface-active agent and polyvinylpyrrolidone to produce oil droplets containing the wall monomer. The wall monomer is polymerized to form a wall around the oil droplets. When heat is applied to the photosensitive layer under alkaline conditions, the coupling component reacts with the diazo compound to form a color.
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