发明授权
US5075278A Chromogenic copy systems and methods 失效
显色复印系统和方法

Chromogenic copy systems and methods
摘要:
A pressure-sensitive chromogenic copy system comprising a transfer sheet having on at least a portion of at least one surface thereof a color developer capable of reacting with a chromogen to form a color image, said color developer comprising a crude reaction medium resulting from reactants used to prepare a salicylate and also containing therein at least one metal compound of such salicylate, the resultant transfer sheet, color developer and process for making such color developer.
公开/授权文献
信息查询
0/0