MEMORY CARD BASE MATERIAL WITH PATTERN

摘要

PROBLEM TO BE SOLVED: To provide a memory card base material with a pattern capable of enhancing adhesion of a print layer without lowering productivity.

SOLUTION: At least, one surface of the memory card base material 1 is provided with a print surface 2 of a surface roughness of 2-20 μm. The print layer 3 is directly formed on the print surface 2 and the pattern is formed of the print layer 3. The print layer 3 is directly printed and formed on the print surface 2, so that the adhesion between the print layer 3 and the print surface 2 can be enhanced by the increase in the contact area between the print layer 3 and the print surface 2 and an anchor effect. This constitution can dispense with a resin material coating, drying, and hardening processes for forming an undercoat layer.

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