Manufacturing method of warp self-feeding and seaming polyester three-layer forming fabric for papermaking

Abstract

The invention relates to a manufacturing method of a warp self-feeding and seaming polyester three-layer forming fabric for papermaking. Polyester or nylon monofilaments are interweaved into three different weaving structures of a finished paper layer, a middle connecting layer and a machine layer by 16 heald frames, and the three different weaving structures are connected into an integral composite intertexture, wherein the minimum organization unit comprises 16 polyester monofilaments as warps and 40 polyester or nylon monofilaments as wefts; the ratio of the number of warps of the finishedpaper layer to that of the machine layer is 1:1; the ratio of the number of wefts of the finished paper layer to that of the machine layer is 3:2; the finished paper layer adopts a 1 / 1 plain weaving method; the machine layer adopts an 8-heald satin weaving method; and the middle connecting layer is formed by self-feeding and seaming of warps of the finished paper layer and warps of the machine layer. The invention has the advantages of flat paper surface, firm interlayer binding force, no internal wear, tight and even fabric structure, wear resistance of the machine layer, small thickness, long service life and strong dehydration performance.

Description

technical field [0001] The invention relates to the wet end of a paper machine, in particular to a method for manufacturing a wire mesh material used in the wet end of a paper machine for sheet forming and dehydration, that is, a polyester three-layer paper forming wire self-sufficiently stitched by thread. Background technique [0002] Paper forming wire is an important forming and dehydrating material in the wet part of paper machine. Paper forming wire directly affects the quality of paper. At present, the competition in the paper industry is becoming increasingly fierce, and paper machines are developing at high speed and wide width. This requires the development of new products of paper forming wire. Development should keep up with the development of papermaking. Although the existing papermaking forming wire can basically complete the task of paper sheet forming and dehydration, its disadvantages are that the surface layer of the existing papermaking forming wire is un...

AI Technical Summary

Problems solved by technology

Although the existing papermaking forming wire can basically complete the tasks of paper sheet forming and dehydration, its disadvantages are that the surface layer of the existing papermaking forming wire is uneven, the mesh is uneven, and the fiber support index is not high. Obvious net marks on the surface make the fiber and filler retention rate of the paper not high, the paper sheet is formed unevenly, the paper sheet is not easy to peel off from the net, and the wear resistance of the contact surface between the machine layer and the paper machine is not enough, which leads to the service life of the paper forming wire Short, poor dehydration performance, not suitable for the production of high-grade paper and high-speed paper machine needs, and the existing three-layer web with transverse weft stitching will move relative to the paper layer and the machine layer, and the bonding force is weak, resulting in internal wear Serious, it is easy to cause interlayer separation, delamination and relative displacement, which affects the dehydration performance of the forming wire and the smoothness of the paper, thus increasing the production cost of the paper mill

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