公开(公告)号：US20210198011A1

公开(公告)日：2021-07-01

申请号：US16066062

申请日：2016-12-21

Applicant: Een Suk PARK ,  Hyun Seo LEE ,  Hyun Jung LEE ,  Hyun Ah LEE

Inventor： Een Suk PARK ,  Hyun Seo LEE ,  Hyun Jung LEE ,  Hyun Ah LEE

IPC: B65D33/10 ,  B65D88/22

Abstract: Disclosed is a bulk bag having self-standing loops. The bulk bag is configured with a bag-shaped body having a reversed “U”-shaped loop protruding upwardly from an outside thereof and configured to flexibly stand upright by itself from a folded position upon unstacking of bodies, wherein the loop is coupled to the body at a position spaced downwardly apart from a top edge of the body by a predetermined distance, the loop having an air tube having a predetermined length and coupled to an outside of the loop. The loop is configured with a semicircular arc-shaped hook portion and “I”-shaped supporting portions respectively extending from opposite ends of the hook portion, and the air tube is coupled with the hook portion and an at least one supporting portion and is heat-treated and flexibly bent at a portion corresponding to a boundary point between the hook portion and the supporting portion.