| 摘要 |
PURPOSE:To obtain a heat developable type diazo copying material also usable for a recording material, capable of forming a high-density image and superior in raw storage stability in spite of lowering the developing temp. in order to reduce a manufacturing cost of a copying machine. CONSTITUTION:Lowering of developing temp. is executed by using a heat-meltable substance of 50-150 deg.C m.p. as a color developing adjuvant for a photosensitive layer consisting essentially of a diazo compound, a coupling component, and a color developing adjuvant, and drop of raw storage stability resulting from the use of this adjuvant is prevented by using a specified acrylic graft copolymer as the outer shell, and encapsulating the coupling component. Besides, a diazo compound advantageous for forming a high-density image can be used as a result of lowering of the developing temp. |
