| 摘要 |
This invention related to a packaging container and a container closure having excellent curability, aesthetic beauty of an ultraviolet ray hardened coating, transferability of a container, heat-resistant treatability, retortability, and sanitary characteristics. The present invention provides to a packaging container and a container closure having, on the outer surface, a coating layer of a resin composition which comprises a cationic curable resin comprising an alicyclic epoxy resin, a photo-cationic-curing catalyst comprising a compound of the following formula (1),wherein each of R1 and R2 is an alkyl group, and they may be the same or different, and R3 is an alkyl group,a sensitizer comprising a thioxanthone sensitizer,and a pigment comprising titanium dioxide, wherein the amount of said titanium dioxide is at least 0.30 mg per 1 cm2 of said coating layer, the amount of said photo-cationic-curing catalyst is 1 to 20% by weight with regards to said titanium dioxide, and the amount of said sensitizer is 1.5 to 5% by weight with regards to said titanium dioxide.
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