| 摘要 |
<p>PURPOSE:To obtain the title composition capable of detecting conformation of effect of coating degree of antisensitive ink suppressing coloring reaction of an electron donating colorless dye with an electron accepting developer directly after printing by blending an aid-salt indicator with a deterioration- preventing agent and organic solvent. CONSTITUTION:0.01-10% acid-base indicator (bromophenol blue) and 0.1-20% deterioration preventing agent (consisting of ultraviolet rays absorbing agent and antioxidant) are blended with an organic solvent (preferably methylene chloride) and dissolved in the solvent and the blend is dispersed to provide the aimed composition. Furthermore, the composition is prepared for spray gun and sprayed and coated by aerosol system and coating degree of paper printed by an antisensitive ink is detected according to hue.</p> |
