| 摘要 |
The present invention provides an image-forming material which comprises a support having thereon, in the following order, (1) a photosensitive composition layer comprising (a) an o-quinonediazide compound, and (b) an additive which reacts with a photoreaction product of the o-quinonediazide compound on heating to produce an alkali-insoluble matter, and (2) a water-soluble high molecular compound layer or a silicone rubber layer. The present invention also provides an image formation process which comprises exposing an entire surface of the image-forming material to light rays which render the o-quinonediazide compound soluble in an alkaline developer, imagewise heating the image-forming material, and then developing the image forming material with an alkaline developer to remove those areas which have not been heated. The present invention further provides an image-forming material which comprises a support having thereon a photosensitive composition layer comprising an o-quinonediazide compound and an additive comprising a group having a chemical structure represented by any one of formulas (1) to (7) shown in the specification and a maximum absorption wavelength in the range of from 670 to 1,250 nm selected from the group consisting of cyanine dye, azlenium dye, squarium dye, croconium dye, quinone dye, thiazine dye and zanthene dye, the additive reacts with a photoreaction product of the o-quinonediazide compound on heating to produce an alkali-insoluble matter, and the additive is contained in the photosensitive composition layer in an amount of from 0.03 to 0.7 parts by weight per part by weight of the o-quinonediazide compound.
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