| abstract |
(57) [Problem] To provide a polyester resin container which maintains transparency even when washed with heated water or an aqueous alkali solution in repeated use. SOLUTION: At least on the outer surface of the container body, there is provided a coating layer made of at least one selected from the group consisting of silicone and polyester resins, which is soluble in heated water or an alkaline aqueous solution, and said layer Wherein the container comprises at least one member selected from the group consisting of a benzotriazole-based ultraviolet absorber, a triazine-based ultraviolet absorber, and a benzoxazinone-based ultraviolet absorber. |