A labelling machine (1) for labelling containers moving on a transport system (2), includes a labelling unit (8) having a supplying roll (19) of a pre-printed label web and a cutting drum (20) providing for both cutting a label from the label web and applying it onto a container. The cutting drum (20) is located at the release point of a label to the container to be labeled.

A thread material cutting device is provided which is used in an extraction bag sheet manufacturing apparatus. The thread material cutting device has tension application means such as a pressing plate configured to engage with the thread material placed between adjacent tags so as to apply tension to the thread material. While the welding means is press-heating the thread material onto the tags, the tension application means applies tension to the thread material so as to cut the thread material.