The bag (1) has a container of polymer film, and an outwardly oriented surface to be provided with a rough surface structure to increase friction between user's hand and the bag, where the bag is made essentially from a thin-walled polymer tube. The outwardly oriented surface comprises friction-enhancing agents. The surface structure is formed by adding grains or flakes to polyolefin plastic of which the thin-walled polymer tube is made, pattern-rolling the polymer tube, and applying lacquer to the outwardly oriented surface combined with adding grains or flakes to the lacquer. Independent claims are also included for the following: (1) a blank for manufacturing a disposable piping bag (2) a method for manufacturing a disposable piping bag.
