| 摘要 |
PURPOSE:To suppress unevenness of image density by heating a support and supplying heat from the support to a coating film in drying it. CONSTITUTION:The reason why the surface of the coating film blushes, that is, becomes opaque and white in drying the coating film is because the temperature of the coating film is lowered below the dew point by the evaporation heat robbed from the coating film necessary for evaporating the solvent and water vapor in the air condenses on its surface. The temperature drop of the coating film can be suppressed with certainty and good reliability by supplying the evaporation heat taken off from the coating film from the heat accumulated by heating the support 3 and controlling the temperature of the support 3. A conductive substrate of an aluminum plate, aluminum drum, or aluminum vapor deposited film, a conductive underlayer 2a formed on the surface of an insulating substrate made of plastics or the like are used for the support, and all the material known as the photosensitive material can be used for the photosensitive film 1, thus permitting the obtained photosensitive body to be restrained from deterioration of photosensitivity and unevenness of printing. |
