The production process of paper-plastic composite bags is very rigorous. In order to allow consumers to use safe and environmentally friendly products, paper-plastic composite bag manufacturers have specified a series of process requirements. Which type of composite bag is qualified? 1, In terms of the appearance quality of the composite bag, the warp and weft threads of the paper-plastic composite bag must not be broken, folded, or wrinkled, and the surface of the silk cloth is shiny and smooth; 2, When suturing, it is not allowed to take off the needle, break the thread, slant seam, curl, etc., the seam is neat, and the remaining thread of the upper seam cannot be in the center of the seam; 31. The layout and logo of the composite bag are printed clearly and neatly, the color is bright, and the font meets the standard of the sample bag, and the packaging bag must not have obvious oil or ink stains. 4、If the inner bag of the paper-plastic composite bag is a white transparent bag made of new polyethylene high-quality raw materials, there must be no air bubbles, water marks, cracks, holes, etc. Bags are high-quality woven bags.