Preparation method of woven compound mail package bags

Abstract

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.

Description

technical field [0001] The invention relates to a manufacturing method of mail packing bags, in particular to a manufacturing method of mail woven composite packing bags, which belongs to the manufacturing process of mail packing bags. Mail woven composite packaging bags are mainly used for packaging postal items, such as packaging bags that can be used as parcels, envelopes for letters, etc., and belong to postal packaging bags. Background technique [0002] At present, there are many kinds of packaging bags used for mailing. For example, the packaging bags used for mailing letters are usually paper envelopes. These paper envelopes are usually suitable for mailing letters with fewer pages, and it is necessary to ensure that the letters Because these paper envelopes are usually not waterproof, once the letter encounters water, the letter inside the envelope will be damaged, which brings certain difficulties to the delivery work. And these paper envelopes are easy to break d...

AI Technical Summary

Problems solved by technology

There are some technologies about making other packaging bags at present, as the application date is May 09, 1996, and the publication number is 1143011 in the Chinese patent, which discloses a kind of manufacturing method of plastic woven composite packaging bags, and the preparation process of this patent is relatively Complicated, and the prepared packaging bags are not highly targeted in application, and additional processes need to be added in practical applications, which leads to more cumbersome procedures when using this method to prepare specific packaging bags

Another example is that the application date is August 15, 2007, and the publication number is 101108669 Chinese patent, which discloses a waterproof and breathable packaging bag and its manufacturing method. Fold the raw materials in half for the inside, and seal the edges with self-adhesive to form a bag shape. This kind of packaging bag has more edges, which affects its structural firmness, and the packaging bag uses more materials, which makes the production process more difficult. More complex and more expensive to produce

However, due to the particularity of the use of mail packaging bags, these technologies for producing other packaging bags cannot be directly used to manufacture mail packaging bags, but there is no manufacturing process for manufacturing mail packaging bags.

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