Design of Coated Paper and Fading Characteristics of Dyes Using a New Rewritable System

Abstract

We investigated about the fading characteristics of dyes using edible, cosmetics and dyed goods and also proposed the design of coated paper on new rewritable system using discharge treatment. From the experimental results, we note that:(I)the fading performance improves with an decrease of ionization potential of dye, (II)the inorganic particles with dye adsorption of about 1g or more is more effective in the fading process by the discharge treatment, (III)the dyes alternatively adsorb to the inorganic particles but to no pulp and the loss of chromophore in dye is attributed to electrophilic reaction by oxidation gas, i.e., ozone, (IV)the fading performance on leaving time after print is closely related to the photoelectron yield, resulting in aggregation of monascus dyes. In addition, it can achieve to the CO₂ reduction target of about 1% provided that the system is applied to all PPC paper be in Japanese use.