Patent ID: 10307776

Abstract:
The invention relates to a device for packaging and dispensing a fluid product, having a leaktight flexible pouch (1) placed in a rigid bottle (10) and associated with a pump or a valve (13), this pouch having a cylindrical wall consisting of a sheet (2) rolled into a cylinder, one edge of which is fixed in a leaktight fashion to a flange forming a ring for fastening to the bottle and to the pump or the valve, this flange (4) consisting of a plastic material, the other edge of the said sheet is fixed in a leaktight fashion to a second flange forming the bottom of the pouch, this second flange (3) consisting of a plastic material, these flanges (3, 4) having a solid disk or a ring having a raised edge (3A, 4A) forming an annular lateral surface, to which the edge of the said sheet (2) forming the wall of the pouch is fixed, the said sheet (2) of the cylindrical wall being a multilayer sheet having at least one inner film of plastic material.According to the invention, the inner face of the said flanges carries a covering sheet (20A, 20B) entirely covering the inner face of the said flanges and also covering at least a part of the said inner annular lateral surface for fastening the edge of the said sheet (2) forming the wall of the pouch, and the said covering sheet (20A, 20B) has at least one film of the same plastic material as the said inner film of the said sheet of the cylindrical wall and a metal film, its plastic material film facing toward the inner face of the said sheet (2) constituting the cylindrical wall.