Novel warp sewing household paper three-layer forming net and papermaking equipment

Abstract

The invention provides a novel warp sewing household paper three-layer forming net and papermaking equipment. The three-layer forming net comprises a paper forming layer, a middle connecting layer anda machine layer. The middle connecting layer comprises first sewing warps and second sewing warps which are paired, the first sewing warps are interwoven with the wefts of the paper forming layer, and the second sewing warps are interwoven with the wefts of the machine layer, so as to connect the paper forming layer and the machine layer. The forming net is formed by interweaving polyester monofilaments or nylon monofilaments through 16 heald frames and comprises a plurality of minimum organization units, and each minimum organization unit is formed by interweaving warps composed of 16 polyester monofilaments and wefts composed of 24 polyester monofilaments or nylon monofilaments. By means of the mode, the machine layer and the paper forming layer can be connected through the paired sewing warps, the upper layer and the lower layer are combined more tightly and firmly, and internal abrasion and layering phenomena are eliminated.

Description

technical field [0001] The present application relates to the technical field of papermaking, in particular to a novel warp-stitched household paper three-layer forming wire and papermaking equipment. Background technique [0002] Papermaking forming wire is an important sheet forming, dewatering and conveying equipment in the wet end of the paper machine, which affects the quality and quality of paper. At present, the speed of the tissue paper machine is getting faster and faster, and the forming wire is required to remove a large amount of water in a short time; at the same time, the quality requirements of the tissue paper are getting higher and higher, and the fiber support index of the surface layer is required. Delicacy; In addition, there are new requirements for the softness and comfort of household paper. [0003] Existing paper forming fabrics used in tissue paper machines are all stitched with weft threads to form fabrics. The forming fabrics sewn with weft threa...

AI Technical Summary

Problems solved by technology

[0003] Existing paper forming fabrics used in tissue paper machines are all stitched with weft threads to form fabrics. The forming fabrics sewn with weft threads have internal wear in the middle and late stages of use. The interlayer bonding between the paper layer and the machine layer Poor strength, easy to produce delamination, affect the quality of paper; and the forming wire stitched by weft has poor stability, the fiber support index of the paper layer is not high, and the density is low, resulting in low fiber retention rate of household paper, paper layer and The warp diameter of the machine layer changes greatly, dehydration is slow, and the service life is low. The existing weft stitched papermaking forming wire is no longer suitable for the needs of high-speed tissue paper machines.

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