Patent ID: 9108783
Filing Date: 2015-08-18
Classification: B65B,B65D

Abstract:
1. An extraction bag comprising: a bag body that is packaged by sealing of a flexible packing material; a cover material that covers an outer surface of the packing material, and is sealed to the packaging material by edge sealing portions formed on a pair of opposing edges of the packaging material; point sealing portions, at least one of the point sealing portions is provided on both inner sides of the edge sealing portions, and the point sealing portions point-seal the cover material and the packaging material; and two hanging threads having base end sides that are sealed in the bag body or the cover material to form a base end sealing portion, wherein: a first hanging thread is drawn so that both sides of the point sealing portions and a first edge end of a first edge sealing portion become supporting points when pulling, and a second hanging thread is drawn so that both sides of the point sealing portions and a second edge end of the second edge sealing portion become supporting points when pulling, the first hanging thread passes between the first edge sealing portion and the point sealing portions; and the second hanging thread passes between each point sealing portion, when pulling the first hanging thread towards outside of one side and the second hanging thread towards outside of the other side, in opposite directions to each other, and the packaging material is squeezed by the base end sealing portion and the point sealing portion approaching one position.