STRAW TUBE, AND DEVICE AND METHOD FOR MANUFACTURING THE STRAW TUBE

The present invention is a straw tube in which a groove (4) is formed on the outer circumferential wall of a tube along the longitudinal direction thereof, and a ridge (5) interposed between these grooves and projecting outward from the datum level of the outer circumferential wall is formed. Such a straw tube can prevent a reduction in the pressure inside a drinking container during sucking of a drink in the drinking container. The present invention is an apparatus for producing a straw tube comprising a rotating drum having formed thereon tube loading grooves onto which tube bodies are loaded, a female rod which reciprocates within the tube loading grooves by means of a cam mechanism and has grooves formed on a surface, and a male roller having ridges corresponding to the grooves of the female rod, wherein the male roller is disposed such that the grooves of the female rod are engaged with the ridges of the male roller while sandwiching the tube, and the female rod and the male roller are synchronized. The present invention is also a method for producing a straw tube using the apparatus. According to such an apparatus and method for producing a straw tube, a straw tube capable of preventing a reduction in the pressure inside a drinking container during sucking of a drink in the drinking container can be easily and efficiently produced.