| 摘要 |
PROBLEM TO BE SOLVED: To provide diazo photosensitive paper using neutralized paper as the base, preventing pre-coupling in storage, having high color forming property and capable of giving a clear image. SOLUTION: Neutralized paper is used as a base, a photosensitive layer is formed on one face of the base and a back layer comprising an organic high molecular material or a mixture of the organic high molecular material and an acidic material is formed on the other face of the base to obtain the objective diazo photosensitive paper.
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