| 摘要 |
PROBLEM TO BE SOLVED: To solve some technical problems such as fixing of a seal piece to an upper end segment of an inner layer laminated on an upper end surface of a port and entry of the inner layer having its volume decreased and its shape deformed into the port, and to enable a seal opening of the seal piece and a discharging of stored liquid to be carried out smoothly and positively. SOLUTION: This bottle comprises a bottle body 2 and an inner plug 11. The bottle body 2 is constituted by an outer layer 3 made of synthetic resin for forming an outer bag of definite shape and an inner layer 4 made of flexible synthetic resin removably stacked on the outer layer 3 and forming an inner bag, and an upper end portion 10 of the inner layer 4 is laminated on an upper end surface of a cylindrical port 6 raised and cooperatively arranged at an upper end of a barrel. An upper end portion of an outer circumferential surface of a cylindrical wall 12 closely fitted to the port 6 is provided with an outer flange 13 in its circumference for use in holding and fixing an upper end portion 10 of the inner layer 4 between it and an upper end surface of a port part 7 of the outer layer 3, and a crossing plate 14 is protruded and arranged in a lower end part of the cylindrical wall 12. A close sealing seal piece 15 is adhered to an upper end surface of the cylindrical wall 12 of the inner plug 11 to realize a high sealing characteristic required in a food container. |
