EASILY OPENING PAPER CONTAINER FOR LIQUID

摘要

PURPOSE: To securely open a paper container so as to reach the end of the aimed perforations without bringing about interlayer exfoliation on the way and without yielding with the strength of non-cut part. CONSTITUTION: Perforations 12, 13 piercing a paper base material 11 are formed in advance thereon and an opening is formed to open a paper container 10 for liquid along the perforations 12. A high density polyethylene uniaxialy drawn film is laminated on the unsealing opening so that the stretching direction thereof coincides with the direction of the perforations 12, 13 forming the opening.