| 摘要 |
PURPOSE:To enlarge the allowable range of heating at the time of forming a negative image by providing a photosensitive layer contg. a specified compd. and an org. base, in the titled material. CONSTITUTION:The photosensitive copying material comprises the photosensitive layer consisting at least one kind of a compd. selected from the group composed of an ester and an amide of 2-benzoquinone-2-diazide-4-sulfonic acid, as an o-quinone diazide compd., and the org. base. Said material is imagewisely exposed, and then, is wholly exposed by heating, followed by developing the exposed material with an alkaline developer to remove the photosensitive layer corresponding to an unexposed part in the image-wise exposure. Thus, in the negative type image formation comprising the imagewise exposure, the heating, the whole exposure and the alkaline development, the allowable range of the heating is enlarged. |
