METHOD FOR MANUFACTURING A PLASTIC BAG AND PLASTIC BAG MANUFACTURED BY THE SAME

摘要

A plastic bag and a method for manufacturing the same are provided to reduce the manufacturing cost for the plastic bag by manufacturing the plastic bag through an automation process. A plastic bag(200) comprises a body section(210) and a bottom section(230). The body section has a front film(212) and a rear film(214). Both peripheral portions of the front film and the rear film are bonded to each other while forming vertical bonding lines(220,220'). A cover(216) is formed in the rear film to cover an upper portion of the front film. Holes(218) are formed in the cover. The bottom section includes a folding line. The bottom section includes a first film(240) extending from the front film, second and third films serving as a bottom, and a fourth film extending from the rear film.