A device for production of bags that preferably consist mostly of paper includes a perforation device for cross perforation of a material web, a tube formation device for formation of a tube from the material web, a first separation device to separate individual tube sections, a device to form a bottom on one of the ends of the tube section, and a second separation device with which individual material sections can be torn off from the tube sections or bags.

A method of cutting a continuous hollow tubular member having a fully expanded configuration with an outer diameter D, includes the steps of feeding the continuous hollow tubular member in the fully expanded configuration to a cutting station, cutting the continuous hollow tubular member into a plurality of hollow tubular members, each of which has a first flattened end and expanding the first flattened end of the plurality of hollow tubular members to the fully expanded configuration such that the first end of the plurality of hollow tubular members has an outer diameter D.

An apparatus for cutting out noodle can prevent damage to scraping teeth of a scraper and prevent noodle threads from being caught at a fixing position of the scraper. The apparatus includes a housing, a first roller having a first receiving portion, a second roller having a second receiving portion, a first scraper secured at a first fixing position and having first scraping teeth inserted in the first receiving portion, a second scraper having second scraping teeth, a third scraper secured at a second secured position and having third scraping teeth, and a fourth scraper having fourth scraping teeth. The first and third scrapers include first and second transfer holes, respectively. The first fixing position is located more outwardly in a horizontally outward direction than a second tooth tip, and the third fixing position is located more outwardly in the horizontally outward direction than a fourth tooth tip.