(1)表面珠光效果易被破坏。
(1) the effect of surface pearlite is easily destroyed.
(2)表面能低,对油墨的吸附性能差。
(2) the surface energy is low and the adsorption property of the ink is poor.
由于云母和二氧化钛(或其它金属氧化物)组成的薄片结构表面光滑,且在造纸过程中纸面要求比较光洁(这样珠光效果才能更好地穿过涂层进入人眼),致使珠光纸比普通白板纸的表面能要小得多,在印刷时油墨不易附着吸收、不容易干燥。
Because of mica and titanium dioxide (or other metal oxides) flake structure composed of smooth surface, and the paper in papermaking process requires relatively smooth (such pearlescent effect can better through the coating into the eye), resulting in the surface than ordinary pearlescent paper white paper can be much smaller, at the time of printing ink absorption, easy attachment easy to dry.
(3)珠光效果容易丢失,印刷容易形成白点、发花、折痕等现象。
(3) pearlescent effect is lost easily, easy to form printing white spots, blur, crease phenomenon.
(4)油墨附着性和干燥性不良导致印刷实地密度低、小网点丢失、干燥慢、反面易粘脏、易擦伤等。
(4) ink adhesion and poor drying property lead to low density of printing field, loss of small dot, slow drying, easy to be sticky on the back, easily scratched and so on.