The structure of scissors includes five parts: blade, tip, back, shaft and handle. Each part has different functions in paper-cutting: whether the "blade" is sharp or not determines the speed of paper-cutting and the uniformity of paper-cutting edges; "Sharpness" determines the paper feeding direction and the smoothness of lines; The "back" determines the width of the incision and the thickness of the sawtooth pattern; The tightness of "closing" determines the fitness of cutting tip; "Ba" determines the strength of cutting.
Therefore, the special scissors for paper-cutting need to be cut at the tip of the scissors, and the back of the scissors should be smooth, so that the paper-cutting works will not scratch, the blade of the scissors should be fast, and the scissors should be collected!