一.珠光纸的结构
I. structure of pearlescent paper
珠光纸的构成和普通白板纸相同，即由底层纤维、填料和表面涂层三部分组成。与普通白板纸不同的是其表面涂层中有形成珠光效果的颗粒。该颗粒由二氧化钛(或是其它金属氧化物)和云母颗粒组成，云母颗粒被二氧化钛(或其它金属氧化物)包裹而形成，此结构呈薄片状。
The composition of pearlescent paper is the same as that of ordinary white board paper, which is composed of three parts: bottom fiber, filler and surface coating. Different from ordinary white board paper, there are particles with pearlescent effect in its surface coating. The particles are composed of titanium dioxide (or other metal oxides) and mica particles. The mica particles are wrapped by titanium dioxide (or other metal oxides) and form a thin sheet structure.
1.珠光纸印刷经常产生的问题
1. Problems in pearlescent paper printing
⑴珠光效果容易丢失，印刷容易形成白点、发花、折痕等现象。
(1) pearlescent effect is easy to be lost, and printing is easy to form white spots, flowers, creases and other phenomena.
⑵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。
(2) poor adhesion and dryness of ink lead to low density of printing field, loss of small dot, slow drying, easy to stick on the reverse side, easy to scratch, etc.