Toning promoter for preparing diazo positive image sensitive paper
A technology of photosensitive paper and accelerator, applied in the field of toning accelerator, can solve the problems of difficulty in purchasing, slow development of ammonia fumigation, dull color tone, etc., and can solve the problem of long ammonia fumigation time, correction of color concentration, and shortening of color development time. Effect
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Embodiment 1
[0038] Accurately weigh 5g of coffee pharynx, 3g of ethylenethiourea, 15g of diethylurea, and 1g of tartaric acid, and mix them uniformly in a blender to obtain the substance of the present invention.
Embodiment 2
[0039] Example 2: Accurately weigh 8g of caffeine, 12g of dimethylurea, 6g of thiourea, 2g of tartaric acid, and 4g of 2-imidazolidinone, put them into a stirring mixer and mix evenly to obtain the substance of the present invention.
Embodiment 3
[0040] Embodiment 3: Accurately weigh 1 g of theophylline, 15 g of bis(N, N-methylbutyl) urea, 2 g of citric acid, and 5 g of 2-imidazolidinone, put into a stirring mixer and mix evenly to obtain the substance of the present invention .
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