Box under pressure comprising a cylindrical body provided with a crimped internally of a bag in a thin sheet in order to contain a substrate and its method of manufacturing

摘要

The box 1 comprises a cylindrical body 2 in which a bag in a thin sheet 5 is provided to contain a substrate to be ejected. The upper edge 18 of the bag 5 is fixed in a folded, which connects the body 2 of the box to a dome of the closure 20. / p & & p & the upper edge of the bag in a thin sheet 5 is retained by clamping between the inner wall 25 of the body of the box and an adjacent edge 30 of the dome 20. The upper edge 18 of the bag, and fixed by clamping, has a diameter that is enlarged with respect to the adjacent portion 40 of the main body of the sachet. This rim 18 is in abutment against the internal face of the cylindrical body 2 of the box according to a contact strip 28. / p & & p & application to the boxes under pressure, in order to avoid leakage of propellant gas and the effects of this gas on the product contained.