| 摘要 |
PURPOSE: To improve silicone oil and ink absorbency by providing a recording layer containing specific cross-linking polyalkyleneoxide, colloidal silica, etc., at least, on one surface of plastic film. CONSTITUTION: A recording layer consisting mainly of cross-linking polyalkyleneoxide obtained by chemical reaction between polyalkylene oxide of an average molecular weight of 1000 to 1,000,000 and an isocyanate compound, colloidal silica and quternary ammonium salt polymer is applied to, at least, the one surface of plastic film to form a recording sheet. The ideally representative examples of polyalkyleneoxide are polyethyleneoxide, polypropyreneoxide, etc., and the colloidal silica is a colloidal dispersion liquid consisting of ultrafine grains of silica dispersed in water or a solvent stably. An example of the quaternary ammonium salt polymer is poly(2-hydroxy-3- methacryloxypropyl-trimethylammonium chloride. |
