Dual-layer bottom net paper making felt

A technology of papermaking felt and bottom wire, which is applied in papermaking, papermaking machines, textiles and papermaking, etc. It can solve the problems of large fit gap between papermaking felt and driving roller, affecting papermaking production operations, and shaping deformation, etc., to achieve convenient weaving and structural Simple, Restorative Effects

Active Publication Date: 2019-04-16
上海金熊造纸网毯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Paper-making felt is an essential material used in paper-making process. Paper-making felt bears a large longitudinal pulling force during operation. Therefore, after long-term use, it may be deformed, resulting in the length of paper-making felt. It is pulled, so that there is a large fit gap between the papermaking felt and the drive roller, which affects the papermaking production operation

Method used

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  • Dual-layer bottom net paper making felt
  • Dual-layer bottom net paper making felt
  • Dual-layer bottom net paper making felt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 with figure 2 A double-layer bottom wire papermaking felt shown, comprising a base fabric layer 1, a cushion layer 2 arranged on the upper and lower layers of the base fabric layer 1, and a fine wool flocking layer arranged on the upper part of the cushion layer 2 above 3, and the coarse wool flocking layer 4 arranged at the lower part of the cushion layer 2 below, the base fabric layer 1 includes upper and lower layers of weft yarns 101, and the first warp yarn 102 connected between the two layers of weft yarns 101 and the second warp yarn 103, the first warp yarn 102 goes around the weft yarn 101 of the upper and lower layers successively, and the second warp yarn 103 also goes around the upper and lower weft yarn 101 in turn, the first warp yarn 102 and the second warp yarn 103 Arranged at intervals, the first warp yarns 102 and the second warp yarns 103 are spatially interlaced.

[0056] In a preferred embodiment of the present invention, the dia...

Embodiment 2

[0066] Such as figure 1 with figure 2 A double-layer bottom wire papermaking felt shown, comprising a base fabric layer 1, a cushion layer 2 arranged on the upper and lower layers of the base fabric layer 1, and a fine wool flocking layer arranged on the upper part of the cushion layer 2 above 3, and the coarse wool flocking layer 4 arranged at the lower part of the cushion layer 2 below, the base fabric layer 1 includes upper and lower layers of weft yarns 101, and the first warp yarn 102 connected between the two layers of weft yarns 101 and the second warp yarn 103, the first warp yarn 102 goes around the weft yarn 101 of the upper and lower layers successively, and the second warp yarn 103 also goes around the upper and lower weft yarn 101 in turn, the first warp yarn 102 and the second warp yarn 103 Arranged at intervals, the first warp yarns 102 and the second warp yarns 103 are spatially interlaced.

[0067] The diameter of the weft yarn 101 is 0.55 mm.

[0068] The...

Embodiment 3

[0084] It is basically the same as Embodiment 2, the only difference is:

[0085] Described rubber adopts following method to prepare, and wherein parts are all parts by weight:

[0086] (1) Add 40 parts of styrene-butadiene rubber, 30 parts of EPDM rubber, and 15 parts of butyl rubber into the internal mixer for masticating, the masticating temperature is 80° C., and the time is 10 minutes to obtain the masticated rubber;

[0087] (2) In the internal mixer of step (1), continue to add 3 parts of stearic acid, 10 parts of white carbon black, 20 parts of palygorskite, 1.5 parts of dibutyl phthalate, 0.5 part of tricresyl phosphate, 3 parts of anti-aging agent and 0.5 part of arginine were mixed for 20 minutes at a temperature of 120°C, and then 1.5 parts of co-vulcanizing agent and 2 parts of sulfur were added and mixed for 5 minutes to obtain a rubber compound;

[0088] (3) Put the mixed rubber at room temperature for 24 hours, vulcanize at a temperature of 140° C. and a pres...

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Abstract

The invention discloses dual-layer bottom net paper making felt. The felt comprises a base cloth layer, pad layers arranged on the upper and lower layers of the base cloth layer, a fine wool flockinglayer arranged at the upper portion of the upper pad layer and a coarse wool flocking layer arranged at the lower portion of the lower pad layer; the base cloth layer comprises weft at the upper and lower layers, first warp and second warp, the first warp and the second warp are connected between the two layers of weft, the first warp sequentially bypasses the weft at the upper and lower layers, the second warp also sequentially bypasses the weft at the upper and lower layers, and the first warp and the second warp are spaced and staggered in space. According to the felt, through the cooperation of the two layers of weft with the first warp and the second warp, a reliable entirety is formed, and the tension resistance is stronger; meanwhile, shock absorption strips are compounded inside the felt, after a long time of load running, the weft at the upper and lower layers can restore the normal position through the shock absorption strips, so that the first warp and the second warp are passively spread, and the restoration capability of the product is improved.

Description

technical field [0001] The invention relates to a papermaking felt with a double-layer bottom net. Background technique [0002] Papermaking felt is an essential material used in the papermaking process. The papermaking felt bears a large longitudinal tensile force during operation, so after a long period of use, it may be deformed, resulting in the length of the papermaking felt. It is pulled into, so that there is a large fit gap between the papermaking felt and the drive roller, which affects the papermaking production operation. [0003] Based on the above problems, it is necessary to provide a papermaking felt with a double-bottom wire that can be elastically retracted and has a longer service life. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a paper-making felt with a double-layer bottom wire that can elastically retract and prolong the service life. [0005] The present invention is achieved through ...

Claims

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Application Information

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IPC IPC(8): D21F7/08C08L9/06C08L23/16C08L23/22C08K13/02C08K13/06C08K9/02C08K9/04C08K3/36C08K5/09C08K3/38C08K5/12C08K5/523C08B37/08B32B3/08B32B5/02B32B5/26B32B33/00
CPCB32B3/08B32B5/02B32B5/022B32B5/26B32B33/00B32B2307/544C08B37/003C08K2003/387C08L9/06C08L2205/035D21F7/083C08L23/16C08L23/22C08L91/06C08K13/02C08K9/02C08K9/08C08K3/36C08K5/09C08K3/38C08K5/12C08K5/523C08K13/06
Inventor 周骏谢宗国陈风戴永君周兴富
Owner 上海金熊造纸网毯有限公司
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