A quiet two-stage telescopic noiseless straw that does not produce unpleasant noise

摘要

When a paper pack beverage is sucked, the inside of the paper pack is depressurized and deformed, and when the mouth is released from the straw for breathing, outside air suddenly flows into the paper pack from the outer straw tube. Provided is a two-stage telescopic straw capable of preventing unpleasant noise generated at that time. SOLUTION: A two-stage telescopic straw attached to a paper pack has a maximum length of about 150 mm and a minimum length of about 75 mm. The outer tube 4 and the inner tube 3 are connected by a locking portion 8 and the tip of the inner tube is cut. Has been. Change the cut surface on the side to be inserted into the paper pack from the inner tube to the outer tube. If the tip of a thick outer tube is cut diagonally and stabbed, and it is swallowed with a thin inner tube, there will be a gap between the inner tube and the paper pack insertion section, allowing air to enter and exit freely, and the inside of the paper pack will not be decompressed and uncomfortable when breathing Generation of sound can be prevented. [Selection] Figure 2