The invention relates to a preparation method of woven compound mail
package bags, belonging to the preparation process of mail
package bags. Presently, in the absence of preparation process of mail
package bags, the existing mail package bags are mostly simple homemade packages. The preparation method in turn comprises processes of inner layer molding, compounding,
cutting and bottom sealing; wherein, the inner layer molding adopts plastic particles as raw materials, the inner layer molding process in turn comprises processes of film preparing, shredding and weaving; the invention is characterized in that: the preparation method further comprises processes of outer layer
color printing, bag mouth molding and rubberizing; wherein, the outer layer
color printing process is carried out on the paper-imitating pearlescent film, the outer layer
color printing process is prior to the compounding process, the bag mouth molding is between the
cutting process and the bottom sealing process, the rubberizing process is behind the bottom sealing process. The preparation method has simple preparation process, the prepared package bag has firm structure, strong seal and convenient use, and relative mail information can be written directly on the bag.