Bag with a pre-established vacuum for the conservation of goods

摘要

in the bag (1) is formed with the aid of a sheet (7), an auxiliary pocket is reported (6) which is devoid of air in the production of the bag (1) which can be placed in communication with the latter.after it has been filled and sealed, by a means of engaging in communication (10) which penetrates in the sheet and reported (7).so that the residual air of the sealed bag is a larger volume when it is separated from the product to fill the bag.