Packaging bag with integrated closure has valve welded to the top of the bag, with the bag being made of a film having a variable size

摘要

The packaging bag is made of a film, with its size being variable according to requirement. A closure valve, which is made of a similar or the same material, is welded to the top of the packaging bag. The valve has a straw or tube, which can be fed through the closure valve. Removing the straw closes the closure valve so that the remaining content does not flow out of the packaging bag.