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Shaping mesh for paper making

A forming net and paper forming technology, which is applied in papermaking, papermaking machines, textiles and papermaking, can solve the problems of increasing control difficulty and operation difficulty, achieve the effect of reducing control difficulty and operation difficulty, and improving structural stability

Inactive Publication Date: 2008-02-06
刘勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the number of weft floating points or warp floating points that the first and second seaming yarns of the forming net have in the paper surface layer is different, so the first and second seaming yarns are different from the surface layer and the bottom layer in the weaving process. The mutual forces of the yarns are different. When the diameters of the surface warp, surface weft, and bottom warp are large, such as greater than 0.20mm, the difference in this force will cause the first and second stitching yarns to be in the same direction. The floating points of the paper surface layer are in different planes, which will cause problems in the structural stability of the forming net. If the first and second stitching yarns use raw materials with different performance indicators, this will increase the difficulty and difficulty of control in the production process. operational difficulty,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Shaping mesh for paper making
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  • Shaping mesh for paper making

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0045]A 20-shed three-layer forming fabric of the present invention is shown in Fig. 1 and Fig. 2. What is shown in the figure is a basic cycle structure of the forming fabric. As can be seen from Fig. 1, the paper-forming surface of the forming fabric is Each repeating cycle in the layer has 5 surface longitudes 61, 62, 63, 64, 65 and 20 surface wefts 02, 04, 06, 08, 10, 12, 14, 16, 18, 20, 22, 24 , 26, 28, 30, 32, 34, 36, 38, 40 and 10 three-dimensional composite yarns 71, 72, 73, 74, 75, 76, 77, 78, 79, 80 become the interwoven part of the paper surface layer. Surface warp and surface weft interweave together in plain weave, for example, surface warp 61, 62, 63, 64, 65 passes through the top of surface weft 02, then passes under 04, and then passes through the top of 06, Then pass under 08, and so on until you pass under 40.

[0046] Fig. 2 has shown the structure of the contact bottom layer of this forming net, and each repeating cycle organization comprises 5 root longit...

no. 2 example

[0054] Fig. 4 shows the top view of the second embodiment 40 of the present invention to form a paper surface layer with three-layer forming mesh. What is shown in the figure is a basic cycle organization of the forming wire, as can be seen from Figure 4, the paper-forming surface layer of the three-layer forming wire, each repeated cycle organization has 20 surface warps 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140 and 5 surface wefts 161, 162, 163, 164, 165 and 10 The interwoven parts of the three-dimensional composite yarns 171, 172, 173, 174, 175, 176, 177, 178, 179, 180 form the paper surface layer, and they are interwoven with each other in a plain weave manner.

[0055] Fig. 5 has shown the structure of the contact bottom layer of this forming wire, and each repeating cycle organization comprises 20 root warps 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127 . 104 below, and so on. The bottom w...

no. 3 example

[0063] Another 40-shed three-layer forming fabric embodiment of the present invention is shown in FIG. 7 . What is shown in the figure is a basic cycle organization of the forming wire, as can be seen from Figure 7, the paper-forming surface layer of the three-layer forming wire, each repeated cycle organization has 20 surface warps 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240 and 5 surface latitudes 261, 262, 263, 264, 265 and 10 Three-dimensional composite yarns 271, 272, 273, 274, 275, 276, 277, 278, 279, 280 are interwoven with each other in plain weave.

[0064] Fig. 8 shows the structure of the contact bottom layer of the forming net, and each repeated cycle organization includes 20 root warps 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227 . Below the 204, and so on. Compared with Example 2, the forming net is different in that its bottom warp and bottom weft are interwoven in a twill weave wi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The present invention discloses a forming net for paper making, the structure includes a yarn system of a paper making layer and a yarn system contacting with a bottom layer; the yarn system of the paper making layer is composed of a couple of three-dimensional compound yarns which are composed of two yarns and each couple includes a first three-dimensional compound yard and a second three-dimensional compound yarn; the three-dimensional compound yarn is woven with the vertical paper making surface yarn at the extension direction and the yarn contacting with the bottom layer; a paper making woven section and a non paper making woven section are formed, the paper making woven section goes through the above section of 5 paper making layer yarns in a basic cycle structure, and becomes a part of a fiber support; the fabrics thickness is 0.60mm-1.65mm. Mesh of the forming net for paper making in the present invention is evenly arranged, yarn floating points on the paper making layer are at the same plane, with sound structure stability, the present invention greatly reduces control and operation difficulty in the production process.

Description

field of invention [0001] This invention relates to papermaking fabrics, commonly known as papermaking forming wires. Background technique [0002] In the paper industry, pulp is turned into paper through a series of equipment and processes, among which the fourdrinier paper machine is the main equipment of the paper industry. The pulp box is sprayed onto the surface of the forming wire. The forming wire is an endless mesh belt woven from polymer materials. The rollers run circularly at a certain speed. Various dewatering devices on the wire table are located on the lower side of the forming wire contacting the bottom layer, such as water suction boxes and wipers. During the belt running, the moisture and other liquids in the pulp are filtered, and the raw material fibers in the pulp are separated from the water medium to form a wet paper web on the paper surface layer of the forming wire, and enter it through the transfer device after the vacuum couch roll squeeze area. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F1/10
Inventor 刘勇
Owner 刘勇