SQUARE PAPER PACK HAVING UNSEALING KNOB PIECE

摘要

PROBLEM TO BE SOLVED: To provide a square paper pack having an unsealing knob piece in which an overlapped sealing part 1 thereof is split and opened in both directions at a primary opening, and an exposed opening part is cleanly, easily and beautifully opened to form a secondary opening. SOLUTION: A short tongue piece type unsealing knob piece 6 is integrally provided on a center of an opening edge 3 which is exposed when a single half part of the overlapped sealing part 1 at an upper end part of the square paper pack A having the unsealing knob piece.