Method and apparatus for continuously forming sealing and filling low density polyethylene bags at high speed

Abstract From the Canadian patent

A high speed method of manufacture of filled polyethylene pouches from polyethylene film comprising the steps of folding the film and causing it to move in folded flat form transversely sealing the film at longitudinally spaced intervals forming a continuous length of open edged unfilled polyethylene pouches perforating the strip or, web forming transversely extending longitudinally spaced lines of perforations between the pouches, exerting a vacuum upon the strip or web holding down sides of the unfilled pouches to stabilize the held sides thereof blowing air at the open edged unfilled polyethylene pouches separating unheld sides of the pouches away from the vacuum held sides of the …