METHOD OF OBTAINING DRY, UNCONTAMINATED SEALS ON FLEXIBLE POUCHES

摘要

A method of obtaining dry uncontaminated seals on flexible pouches. The longitudinal side seams of the pouch are sealed to within about three-quarters of an inch of the top thereof leaving a pair of free flaps. The latter are then folded rearwardly and downwardly through 880 DEG against the front and rear panels of the pouch. The flaps are then immobilized in this position by opening the pouch which is then filled with a product. The flaps are then returned to an upright position such as by pulling the top of the pouch flat in a togglelike action and sealed preferably with a slight overlap of the original side seam seal.