| 摘要 |
PURPOSE:To manufacture a multi-layer container without deterioration of barrier properties which may be generated by water-absorbing properties by blow molding a parison constituted of a thermoplastic resin layer and an ethylene- vinyl acetate copolymer layer containing a drying agent. CONSTITUTION:Polyethylene terephthalate resin is used for an inner layer and an outer layer, between which an intermediate layer constituted of a polyethylene-vinyl acetate copolymer, with which drying agent particles (anhydrous disodium phosphate fine power) is mixed, is formed. A multi-layer pipe of polyethylene terephthalate resin/adhesine resin/ethylene-vinyl acetate copolymer composition containing drying agent particles/adhesine resin/polyethylene terephthalate resin is molded, and further a parison with the bottom is molded by closing one end of the pipe. Said multi-layer parison with the bottom is blow molded, and a multi-layer container without deterioration of barrier properties generated by water absorbing properties is manufactured, the content can be preserved for a long period of time. |
