| 摘要 |
PURPOSE:To improve picture density and clarity of a color tone by mixing solid dispersed wax into a covering layer of recording paper, wherein the solid dispersed wax is 1-50wt% of that of an inorganic pigment. CONSTITUTION:An inorganic pigment consisting of clay, talc, calcium carbonate, etc., and water adhesives such as ehterized startch or carboximethylcellulose together with the pigment and a pigment dispersant are applied on a base consisting of paper and synthetic resin film at a quantity of about 0.5g/m<2> by a paint sprayer. At this stage, solid dispersed wax of 1-50wt% of the weight of the inorganic pigment is mixed. As solid dispersed wax, animal wax, petroleum wax or the like such as wax or shellac wax, in the form of impalpable powder or emulsion are used. Lateral diffusion of ink dot is improved because hydrophobic solid matter gathers on the surface after drying the inorganic pigment mixed with the wax. |
