Twenty-four- heald composite fiber polyester three-layer papermaking net

Abstract

The invention discloses a twenty-four-heald composite fiber polyester three-layer papermaking net which is an integrated composite intertexture formed by using twenty-four healds to interweave polyester or nylon single yarn. The twenty-four-heald composite fiber polyester three-layer papermaking net comprises a paper forming layer, a middle connecting layer and a machine layer, wherein the paper forming layer, the middle connecting layer and the machine layer are different in weaving structure, the 1 / 1 plain weaving method is adopted for the paper forming layer, the six-heald weaving method is adopted for the machine layer, and the middle connecting layer comprises a pair of connecting wefts which are used for connecting the paper forming layer and the machine layer. Due to the fact that the 1 / 1 plain weaving method is adopted for the paper forming layer, the fiber supporting index is made to be improved, meshes are even and smooth, the retention rate of fiber and padding of paper is improved, paper page forming is even, and a paper page can be stripped off the net easily. The pair of connecting wefts is used for connecting the paper forming layer and the machine layer, so that the upper layer and the lower layer are connected with each other more firmly. The six-heald weaving method is adopted for the machine layer, so that the span of wefts of the machine layer is increased, abrasive resistance of the forming net is improved, and service life is longer.

Description

technical field [0001] The present invention relates to the wet end of a paper machine, in particular to a wire mesh device used in the wet end of a paper machine for sheet forming and dehydration, that is, a 24-shed composite fiber polyester three-layer paper-making wire. Background technique [0002] Papermaking forming wire is an important forming and dewatering material in the wet end of a paper machine. Although the existing papermaking forming wire can basically complete the task of paper sheet forming and dehydration, its disadvantages are that the paper layer of the existing papermaking forming wire is uneven, The fiber support index is not high, resulting in obvious network marks on the surface of the finished paper, resulting in a low retention rate of fibers and fillers in the paper, uneven formation of the paper sheet, and difficult peeling of the paper sheet from the net, which is not suitable for the production of high-grade paper. Moreover, the binding force b...

AI Technical Summary

Problems solved by technology

[0002] Papermaking forming wire is an important forming and dewatering material in the wet end of a paper machine. Although the existing papermaking forming wire can basically complete the task of paper sheet forming and dehydration, its disadvantages are that the paper layer of the existing papermaking forming wire is uneven, The fiber support index is not high, resulting in obvious net marks on the surface of the paper, resulting in a low retention rate of fibers and fillers in the paper, uneven formation of the paper sheet, and difficult peeling of the paper sheet from the net, which is not suitable for the production of high-grade paper.

Moreover, the binding force between the paper forming layer and the machine layer of the existing papermaking forming wire is weak, and separation and relative displacement between layers are easy to occur, and the wear resistance of the contact surface between the machine layer and the paper machine is not enough, resulting in a short service life of the papermaking forming wire

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