A copying paper having color revelation property

摘要

This devise is eumhyeon relates to chromogenic copy paper, becomes printed in advance owners markers for copy paper or when used in copiers, printers and fax without the need to write directly pre-printed or expression of the applied color solution made the owner markers conveniently , usually does not need to be the owner of the labeled copy paper and plain paper can be used for plain paper is divided. And coloring the leuco dye To this end, the color developer agent for coloring the coloring coupler acid, gallic acid, lactic acid, activated clay, calcium carbonate to bisphenol A, salicylic acid, salicylic acid and one selected from zinc, a lubricant in which the printing and coating smooth, clay, diatomaceous earth, one selected from silicon oxide, zinc white, a sensitizer or Detect for adjusting the sensitivity agent and, with the initial color-developing liquid containing a defoaming agent and a dispersing agent; The initial color-developing solution, a resin or calcium carbonate, a water-soluble binder as a lubricant emulsion binder, by printing the last color developing solution containing glyoxal to a binder curing agent to one side or the coating is characterized by formed.