S2f Flexico

William Delasalle

Henri Georges Bois

Philippe Georges

The invention relates to a method for manufacturing (S) a bag () by means of blown film extrusion, including the following steps: extruding (S) plastic such as to form an annular film () including closing assemblies (), said annular film being intended to form the walls of the bag; and blowing (S) the annular film such as to form a sheath, the complementary profile sections () of each of the closing assemblies () being integrally formed with a base () connected to the annular film () via a connection rod () that extends parallel to the longitudinal axis (X) between the annular film () and the base () and is designed to keep the base () separated from the annular film ().

Method for manufacturing a bag by means of blown film extrusion

The present invention relates to a device for closing bags or the like, including two complementary profile members (A, B), characterized in that each of the two complementary profile members includes at least two profiled attachment elements () for which form a multiple closure, in that said profiled elements for attachment have flattened portions () distributed over the length thereof, and in that said profiled attachment elements are supported by at least one respective support mat () on which said profiled attachment elements are integrally formed, wherein the support mat is to be attached onto a support wall () and has a width () that is greater than the total width () of the profiled attachment elements.

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Cresnes, France

William Delasalle