flexible packaging valve arrangement, flexible packaging and flexible plastic laminate film containing the valve and improved methods of manufacturing flexible plastic laminate film containing the valve and forming and filling the flexible packaging containing the valve

摘要

FLEXIBLE PACKING VALVE ARRANGEMENT, FLEXIBLE PACKAGING AND PLASTIC LAMINATE FLEXIBLE FILM CONTAINING VALVE AND FLEXIBLE LAMINATE CONDENSING FLEXIBLE LAMINATE FACTORY PRODUCTION METHODS said valve (1) for gas drainage that is confined in the process of conformation and filling of the package and / or which is formed within the package (100) from the packaged product (200) formed by cutting (s) of gas inlet (2), practiced in the inner layer (102) of the packaging that comes in contact with the packaged product (200); by a non-laminated strip gas circulation duct (s) (3) located between two adjacent layers (102) and at the end (s) of which open (s) the cut (s) (2) and having selected configuration and / or position (s) to allow gas flow and not to allow particulate product flow to allow flow from the outside to the inside of the package; and by passage (s) (4) formed in lower (105) and / or upper (106) and / or longitudinal (104) closing transverse line (s) of the communicating package (s) with the other end (s) of the duct (s) (3), opposite the one (s) having the gas inlet cut (s) (2) ) and with the environment.