Plastic bag manufacturing process

Abstract

A process for bag manufacture of a bag having a first dimension from a sealed bottom of the bag to an open top of the bag, the bag being fabricated from a continuous tube of plastic film bag material. The process includes the steps of providing a continuous tube of plastic film bag material. The side edges of the bat material are folded between a front bag panel and a rear bag panel to form gussets. A sealing station having apparatus for placing two parallel and spaced apart seals and a knife for cutting the continuous tube of the plastic film bag material between the two parallel and spaced apart seals; First adjacent double seals are formed across the front bag panel and the rear bag panel, the double seals in parallel side-by-side relation with one another with the plastic film bag material there between. The continuous tube of plastic film bag material is at least twice the first dimension from the sealed bottom of the bag to the open top of the bag. This forms second adjacent double seals across the front bag panel and the rear bag panel, the second adjacent double seals in parallel side-by-side relation with one another. By cutting the continuous tube of plastic film bag material between the second adjacent double seals, a double bag unit is formed and severed having single seals at opposite ends of the double bags.