| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic container to which a concealed mark is applied such as a lot number or a code at low cost without using a fluorescent colorant agent which is causes a problem in terms of food sanitation, and capable of recycling a reproduction material of the plastic container generated upon manufacturing as a forming material. SOLUTION: A transparent mark is formed on the surface of the plastic container with a resin composition without containing a colorant or a fluorescent agent. Preferably, this mark is formed in 0.5μm or more in thickness by applying the resin composition containing (1) a binder resin, (2) a conductive agent, and (3) a flux material to the surface of the plastic container using an inkjet printer. COPYRIGHT: (C)2008,JPO&INPIT
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