METHOD FOR PRODUCING NURSING BOTTLE USING POLYESTER RESIN COMPOSITION

摘要

PURPOSE: Method for the production of a nursing bottle for a baby that is free of dissolving bisphenol-A and/or other endocrine disruptors in case of disinfecting the nursing bottle with hot water is provided. CONSTITUTION: Method for producing the nursing bottle comprises the following steps of: (i) making polyester resins which comprises 85-100 mol% of polyethylenenaphthalate resin and not more than 15 mol% of polyethyleneterephthalate resin as a preform; (ii) blow-molding the preform, wherein an extension rate is vertically 1.0-3.0 and horizontally 1.2-2.0. The nursing bottle has not less than 85% transparency.