CN2386070Y

CN2386070Y - Polyester compound net for papermaking

Info

Publication number: CN2386070Y
Application number: CN 99241847
Authority: CN
Inventors: 邹祥生; 丁家祥
Original assignee: WUHU PAPER-MAKING NET GENERAL FACTORY
Current assignee: Anhui Huachen Paper Wire Co., Ltd.
Priority date: 1999-08-16
Filing date: 1999-08-16
Publication date: 2000-07-05
Anticipated expiration: 2009-08-16

Abstract

The utility model relates to a polyester compound net for papermaking, which is composed of a top net, a bottom net and threading lines. The latitude and longitude density of the top net is larger than the latitude and longitude density of the bottom net. The line diameter of the latitude and longitude lines of the top net is smaller than the line diameter of the latitude and longitude lines of the bottom net. The top net and the bottom net are threaded and combined into a whole net by the threading lines. The utility model has the characteristics of long service life and good drainability. The utility model solves the defect that the past polyester compound net can not be applied on a paper mechanism with high speed.

Description

Paper grade (stock) polyester composite web

The utility model relates to a kind of paper grade (stock) polyester composite web

Existing polyester papermaking wire-cloth is generally the warp that adopts same line footpath, the individual layer net that parallel is made.Because the warp of individual layer net gauge mesh of the same race, the line of parallel are directly fixing, if satisfy the water filtering performance requirement, select for use thin warp, parallel to weave, the papermaking wire-cloth defective that lack service life in high-speed paper machine then appears; In order to satisfy the requirement of papermaking wire-cloth long service life, select for use big line footpath wire rod to weave on the contrary, it is poor then can water filtering performance to occur again, and fiber fines runs off many, influences the problem of the surface quality of paper; In addition, single-layer polyester network interface intensity is on the low side, has also directly influenced the service life of papermaking wire-cloth.So the individual layer net can not fundamentally solve the contradiction of service life and water filtering performance, thereby its Application Areas is restricted widely.

The purpose of this utility model be to provide a kind of life-span long, water filtering performance is good is applied in paper grade (stock) polyester composite web on the high-speed paper machine.

The purpose of this utility model is by by top net, spacer screen, wear that technical scheme that tie lines constitutes realizes, the top net through filling density greater than spacer screen through filling density, the graticule line of top net footpath is less than the graticule line footpath of spacer screen, top net and spacer screen are worn to tie and are merged into integral net by wearing tie lines.

The top net is the major part of dewatering of pulp, and its designing requirement should reduce the loss of paper pulp fiber as best one can, and the water permeability of whole wire side is consistent; And spacer screen mainly works the effect of setting off, and also will improve outer force bearing strength as far as possible in addition; Spacer screen and wear tie lines and avoid again the dehydration property of top net is caused bad influence as far as possible simultaneously.Comprehensive these factor the utility model are specific design like this: the line of top net graticule directly is 0.17mm-0.20mm, and the line of spacer screen graticule is 0.30mm-0.35mm directly, and the line of wearing tie lines directly is 0.13mm-0.15mm.Top net through filling density be: through close 32-28 root/centimetre, filling density 30-26 root/centimetre, spacer screen through filling density is: through close 17-13 root/centimetre, filling density 16-12 root/centimetre.Wear tie lines and intersect and to wear knot top net and spacer screen, wear on spacer screen, jump three or four warps of tie lines and once become palm fibre card latitude.Top net reticulate pattern adopts the plain weave reticulate pattern, and the spacer screen reticulate pattern is the broken lines of forging of four palm fibres.

This paper grade (stock) polyester composite web adopts top net and the compound knot of wearing of spacer screen stack to form, therefore good effect of the present utility model compared with the prior art is embodied in: first, adopt the big top net that is made into through the fine line diameter of filling density, the papermaking wire-cloth water filtering performance is improved, reduced the fiber fines loss, help improving the quality and the class of paper, reduce the environmental pollution of running off and causing because of paper pulp; The second, adopt for a short time through the woven spacer screen in filling density and thick line footpath, wear-resistant, not easy to wear, dehydrating effect is good, long service life; And joint strength is improved, and is useful on the high-speed paper machine and uses, and it is big to produce the paper amount.

The utility model is described in further detail in conjunction with the accompanying drawings by the following examples.

Fig. 1 is a cross-sectional view of the present utility model

As seen in Figure 1, this polyester composite web is made of two layers of mesh, is respectively top net 1 and spacer screen 2, and top net 1 adopts big footpath filling density to weave, spacer screen 2 is to adopt path filling density and heavy wire to weave, and top net 1 and spacer screen 2 are to adopt little line footpath parallel to wear knot and be merged into integral net as wearing tie lines 3.The line of top netting twine material directly is 0.18mm, and the line of spacer screen wire rod directly is 0.32mm.The line of little line footpath parallel directly is 0.15mm, and top net and spacer screen are worn knot and be merged into integral net, and the top net is the plain weave reticulate pattern, and mesh size is even, the single deck tape-recorder latitude, and through close 30/cm, 28/cm of filling density; Spacer screen is the broken satin weaves of four palm fibres; Wear tie lines 3 intersections and wear knot top net and spacer screen, three warps of spacer screen that jump are once worn knot and are become palm fibre.

Claims

1, paper grade (stock) polyester composite web by top net (1), spacer screen (2), is worn tie lines (3) and is constituted, and it is characterized in that:

Top net (1) through filling density greater than spacer screen (2) through filling density, the graticule line of top net (1) footpath is less than the graticule line footpath of spacer screen (2), top net (1) and spacer screen (2) are worn knot and are merged into integral net by wearing tie lines (3).

2, paper grade (stock) polyester composite web according to claim 1 is characterized in that:

The line of top net (1) graticule directly is 0.17mm-0.20mm, and the line of spacer screen (2) graticule is 0.30mm-0.35mm directly, and the line of wearing tie lines (3) directly is 0.13mm-0.15mm.

3, paper grade (stock) polyester composite web according to claim 1 is characterized in that:

Top net (1) through filling density be: through close 32-28 root/centimetre, filling density 30-26 root/centimetre, spacer screen through filling density is: through close 17-13 root/centimetre, filling density 16-12 root/centimetre.

4, paper grade (stock) polyester composite web according to claim 1 is characterized in that

Wear tie lines (3) and intersect and to wear knot top net (1) and spacer screen (2), wear on spacer screen, jump three or four warps of tie lines (3) and once become palm fibre card latitude.

5, paper grade (stock) polyester composite web according to claim 1 is characterized in that

Top net reticulate pattern adopts the plain weave reticulate pattern, and the spacer screen reticulate pattern is the broken satin weaves of four palm fibres.