CN203007722U

CN203007722U - Papermaking felt

Info

Publication number: CN203007722U
Application number: CN 201220628721
Authority: CN
Inventors: 沈根莲; 谢宗国; 戴永君; 林杰
Original assignee: SHANGHAI JINXIONG PAPER FELTS CO Ltd
Current assignee: SHANGHAI JINXIONG PAPER FELTS CO Ltd
Priority date: 2012-11-23
Filing date: 2012-11-23
Publication date: 2013-06-19
Anticipated expiration: 2022-11-23

Abstract

The utility model relates to a papermaking felt for papermaking equipment. The papermaking felt sequentially comprises a fiber surface layer, a base cloth layer and a fiber rear surface, wherein the base cloth layer comprises at least two layers of base cloth comprising warps and wefts; the warps are vertical to the wefts in the base cloth; and the warps of the upper and lower adjacent base cloth in the base cloth layers are staggered. The papermaking felt has the characteristics of high void ratio, good breathability, high elasticity and the like, and is flat, stiff, wear-resistant and high-temperature-resistant when in use.

Description

Felt

Technical field

This is novel relates to a kind of felt for paper making equipment.

Background technology

Felt is a kind of special textiles for paper machine, no matter in that link of paper machine, all needs felt to have that paper is level and smooth, intensity is high, the performance of good springiness, namely can be smooth, stiffening wear-resisting, high temperature resistant again.present existing felt generally includes the fiber top layer, base cloth and fiber backing layer that multilayer is comprised of warp thread and weft yarn braiding, should weave the base cloth that forms by warp thread and weft yarn, general warp thread is relative with weft yarn arranged vertically, because the warp thread of the two-layer base cloth in up and down when superposeing of the base cloth in this base cloth layer is fully corresponding with weft yarn, this arrangement easily makes the warp thread of upper strata base cloth be embedded between the space of lower floor's base cloth warp thread when woollen blanket is squeezed under high line pressure condition repeatedly, thereby stopped up the space, elasticity and the water permeability of felt have been affected, and then the service life of shortening felt.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of felt, and this felt can prevent that space, felt up and down is blocked, makes woollen blanket keep high-strength high-elasticity, and it is simple and reliable for structure, cost is low.

Felt of the present utility model, comprise successively fiber top layer, base cloth layer and fiber backing layer, described base cloth layer comprises the two-layer at least base cloth that is comprised of warp thread and weft yarn, and the warp thread in described base cloth is perpendicular to weft yarn, and in described base cloth layer, the warp thread of neighbouring base cloth is staggered.

Preferably, described base cloth layer is comprised of three layers of base cloth.

Preferably, in described base cloth layer, the warp thread of the adjacent base cloth angle that staggers is the 5-45 degree.

Further, the fiber top layer of described felt and fiber backing layer are fibrage.

The material of described fiber top layer, base cloth layer and fiber backing layer is nylon 6 or nylon 66.

Further, described felt is can the warp thread thickness alternate, and the weft yarn thickness is identical.

Described felt, all right warp thread thickness is identical, and the weft yarn thickness is alternate.

Described felt, all right warp thread thickness is alternate, and the weft yarn thickness is alternate.

Felt of the present invention, can adopt following method to be prepared from:

Adopt conventional method to weave base cloth, with the warp thread of adjacent base cloth respectively staggered stack make base cloth layer, to synthesize short fiber again and be laid on base cloth layer, then base cloth layer and fibrage be through acupuncture processing, HEAT SETTING, fiber top layer and fiber backing layer and base cloth layer can be fixed.This weaving process is industry universal method, is documented in textbook " felt technology and application ".

above-mentioned felt of the present utility model is owing to having adopted the mode that the base cloth that is comprised of warp thread and weft yarn makes the warp thread of upper strata base cloth and lower floor's base cloth stagger respectively when superposeing up and down to superpose in basic layer, during thereby the warp thread that makes the upper strata base cloth can not be embedded between the warp thread space of lower floor's base cloth, can not stop up the space, thereby make felt have better elasticity and water permeability, it is simple in structure, combined and instant, its felt not only has smooth, stiffening, good springiness, wear-resisting, resistant to elevated temperatures performance, and then can better extend service life of felt.

Another the utility model adopts the alternate warp thread of thickness and weft yarn braiding to form base cloth, and this base cloth is bearing main pressure through lower rove under pressure, and good recoverability is arranged, and has both kept the high voidage of base cloth, guarantees again the lasting permeability rate of base cloth.

Description of drawings

Fig. 1 is the schematic diagram of the utility model felt.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1

Fig. 4 is the C-C cutaway view of Fig. 1.

In figure: 1 is the fiber top layer; 2 is base cloth layer; 3 is the fiber backing layer; 21,22,23 is base cloth in base cloth layer; 211,221,231 is warp thread; 212,222,232 is weft yarn.

The specific embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made more explicit defining.

Fig. 1 is the schematic diagram of the utility model felt, in figure as can be known felt of the present utility model comprise successively: fiber top layer 1, base cloth layer 2 and fiber backing layer 3, material is nylon 6.Base cloth layer 2 of the present utility model is

multilayer base cloth

21,22,23 structures, described

base cloth

21,22,23 by warp thread 211,221, and 231 and weft yarn 212,222,232 braidings form, usually warp thread 211,221,231 respectively with weft yarn 212,222,232 is relatively arranged vertically, in the base cloth layer 2 of the utility model felt by warp thread 211,221,231 and the base cloth 21 that forms of weft yarn 212,222,232,22,23 when stack the upper strata base cloth distinguish staggered with the warp thread 211,221,231 of lower floor's base cloth.

Fig. 2 is the A-A cutaway view of base cloth when stack in Fig. 1 felt base cloth layer 2, it is the warp thread Pareto diagram of base cloth 21, Fig. 3 is the B-B cutaway view of base cloth when stack in Fig. 1 felt base cloth layer 2, it is the warp thread Pareto diagram of base cloth 22, Fig. 4 is the C-C cutaway view of base cloth when stack in Fig. 1 felt base cloth layer 2, i.e. the warp thread Pareto diagram of base cloth 23.Can be found out the warp thread 221 of the warp thread of base cloth 21 shown in Figure 2 211 and base cloth 22 shown in Figure 3 45 degree that stagger, the warp thread 231 of the warp thread 221 of base cloth 22 shown in Figure 3 and base cloth 23 shown in Figure 4 45 degree that stagger equally by cutaway view.

Above-mentioned felt can adopt conventional method to weave base cloth, with the warp thread of adjacent base cloth respectively staggered stack make base cloth layer, to synthesize again short fiber and be laid on base cloth layer, then base cloth layer and fibrage be through acupuncture processing, HEAT SETTING, fiber top layer and fiber backing layer and base cloth layer can be fixed.

Further, in the present embodiment, the base cloth of felt can be the individual layer base cloth, and its warp thread thickness is alternate, and the weft yarn thickness is alternate.

Warp thread can by The warp thread of root and

The alternate composition of warp thread.

Weft yarn can by

The weft yarn of root and

The alternate composition of weft yarn.

Base cloth layer in the utility model felt, it can superpose the individual layer base cloth wherein by the individual layer base cloth:

The individual layer base cloth on upper strata: warp thread is

Nylon 6 yarns of root, through close be 90/10CM.The individual layer base cloth warp thread thickness on upper strata is identical.

The individual layer base cloth of lower floor: warp thread by

Nylon 6 yarn warp thread with

The nylon 6 alternate compositions of yarn warp thread of root, through close be 90/10CM.

The individual layer base cloth on upper strata: weft yarn is

Nylon 6 yarns of root, filling density is 140/10CM.The individual layer base cloth weft yarn thickness on upper strata is identical.

The individual layer base cloth of lower floor: weft yarn by

Nylon 6 yarn weft yarns with The nylon 6 alternate compositions of yarn weft yarn, filling density is 110/10CM.

Base cloth in felt of the present utility model also can be for through double-deck base cloth, and the warp thread thickness is alternate, and the weft yarn thickness is alternate.

Warp thread is

The warp thread of root and The alternate composition of warp thread.

Weft yarn is

The weft yarn of root and

The alternate composition of weft yarn.

Base cloth layer in the utility model woollen blanket also can be by the double-deck base cloth of individual layer base cloth stack, wherein:

The individual layer base cloth on upper strata: warp thread is Nylon 6 yarns of root, through close be 90/10CM.The individual layer base cloth warp thread thickness on upper strata is identical.

The double-deck base cloth of lower floor: warp thread by

Nylon 6 yarn warp thread with

The nylon 6 alternate compositions of yarn warp thread of root are through close 90/10CM.

The individual layer base cloth on upper strata: weft yarn is

Nylon 6 yarns of root, filling density is 140/10CM, tissue: 1/1 plain weave.The individual layer base cloth weft yarn thickness on upper strata is identical.

The double-deck base cloth of lower floor: weft yarn by

Nylon 6 yarn weft yarns with

The nylon 6 alternate compositions of yarn weft yarn of root, filling density is 110/10CM.

Double-deck base cloth can be divided into through double-deck and latitude double-decker, and the present embodiment adopts through double-layered structure.

The utility model is by adopting the alternate warp thread of thickness and weft yarn braiding to form base cloth; this base cloth is bearing main pressure through (usually in 300KN, 25 beats/mins of uninterrupted weight) under pressure lower rove; and good recoverability is arranged; so keep the high voidage of base cloth, guarantee the lasting permeability rate of base cloth.

Especially in the base cloth multi-layer composite fabric, the rigidity that rove is good has played supporting role, avoids base cloth to produce compacting, nested because of weight repeatedly, has kept permanent voidage, thereby improved the lasting permeability rate of base cloth, extended the service life of felt.

The above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; variation or the replacement that can expect without creative work are within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claims were limited.

Claims

1. felt, comprise successively fiber top layer, base cloth layer and fiber backing layer, described base cloth layer comprises the two-layer at least base cloth that is comprised of warp thread and weft yarn, and the warp thread in described base cloth is characterized in that perpendicular to weft yarn: in described base cloth layer, the warp thread of neighbouring base cloth is staggered.

2. felt as claimed in claim 1, it is characterized in that: described base cloth layer is comprised of three layers of base cloth.

3. felt as claimed in claim 1 is characterized in that: in described base cloth layer, the warp thread of the neighbouring base cloth angle that staggers is the 5-45 degree.

4. felt as claimed in claim 1, it is characterized in that: described warp thread thickness is alternate, and described weft yarn thickness is identical.

5. felt as claimed in claim 1, it is characterized in that: described warp thread thickness is identical, and described weft yarn thickness is alternate.

6. felt as claimed in claim 1, it is characterized in that: described warp thread thickness is alternate, and described weft yarn thickness is alternate.

7. felt as described in claim 1 to 5 any one is characterized in that: the material of described fiber top layer, base cloth layer and fiber backing layer is nylon 6 or nylon 66.

8. felt as claimed in claim 6 is characterized in that: the material of described fiber top layer, base cloth layer and fiber backing layer is nylon 6 or nylon 66.