There is a little error in the width of the ribbon, which leads to the dislocation of screen printing. The pressure and angle of the scraper need to be adjusted. In order to reduce the appearance of ink in non-printing area, reduce the hardness, angle, pressure and ink of the scraper, sharpen the obtuse angle of the scraper to a right angle. Ribbon is a narrow or tubular fabric made of various yarns. There are many kinds of belt fabrics, which are widely used in clothing, shoes, luggage, industry, agriculture, military supplies, transportation and other industrial sectors.