CN101144700A

CN101144700A - Profiling net for paper making

Info

Publication number: CN101144700A
Application number: CNA2007100299795A
Authority: CN
Inventors: 刘勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-30
Filing date: 2007-08-30
Publication date: 2008-03-19
Anticipated expiration: 2027-08-30
Also published as: CN100523369C

Abstract

The invention discloses a forming mesh fabric for paper making. The structure of the invention comprises a yarn system of a paper forming surface layer and a yarn system of a contact bottom layer; the structure also comprises a group of a plurality of vertical compound yarns with the same hardness and a group of a plurality of vertical compound yarns with the different hardness, the vertical compound yarn is interlaced with the paper making surface layer yarn and the contact bottom layer yarn vertical to an extension direction of the vertical compound yarn; the invention consists of an interlacing part of the paper forming surface layer and an interlacing part of non paper forming surface layer; the interlace part of the paper forming surface layer yarn of the vertical compound yarn positioned at the lower part of the paper forming surface layer yarn penetrates the lower side of one piece of or two pieces of contact bottom layer yarn (s). The top part of the paper forming surface layer and the top part of a paper forming surface layer filling yarn of the vertical compound yarn in the forming mesh fabric for the paper making of the invention are arranged under the same level, and are provided with a mesh opening arranged uniformly. A surface end and a ground end can be replaced mutually, various types of products can be provided to meet the various demands of different paper making factories, and the production cost of the product is reduced.

Description

Forming net for making paper

Invention field

The present invention relates to papermaking fabric, just usually said forming net for making paper.

Background technology

At paper industry, by a series of equipment and operation paper pulp is become paper, wherein fourdrinier machine is the capital equipment of paper industry enterprise, in the fourdrinier machine paper-making process, paper pulp is transported to head box, and be ejected on the moulding wire side by head box, forming net is to weave the annular guipure for no reason that forms by macromolecular material, on paper machine, forming net is at breast roll, couch roll, drive the net roller, between a plurality of deflector rolls such as wite roll with certain speed round and round, various dewater units on the forming table are positioned at the downside of forming net contact bottom layer, such as suction box, Wiper blade, paper pulp is injected into the one-tenth paper layer of moulding guipure, in the guipure running, the moisture in the paper pulp and other liquid are filtered, and the raw fibre in the paper pulp is separated from aqueous medium, one-tenth paper layer at forming net forms wet web, and enters pressed zone by transfer device after suction couch roll.

Wet web enters pressed zone after leaving the district that is shaped, in pressed zone another kind of papermaking fabric is arranged, we are referred to as " press felt ", press felt is the endless fabric, press felt is between one or more groups pressure roller, with certain speed round and round, remove redundant moisture in the wet web from the pressure of pressure roller, and strengthen removal ability redundant moisture in the wet web by press felt.

Wet web is transported to dry section by after the pressed zone, further removes moisture in the paper web at dry section, with processing and the packing instructions that reach later process.

In this patent is described, adopt textile industry and the general versatility term of paper industry, be explained as follows:

MD: the traffic direction of paper machine also is the traffic direction of fabric on the paper machine.

CMD: the traffic direction of paper machine vertical laterally, also be the vertical direction of the traffic direction of fabric on the paper machine.

Warp: on the paper machine traffic direction, promptly the MD direction constitutes the yarn of forming net vertical structure.

Parallel: on vertical paper machine traffic direction, promptly the CMD direction constitutes the yarn of forming net transversary.

Become the paper layer: the forming net on paper machine can be sandwich construction, contacts with paper pulp, and the paper fiber is played the surface layer of direct supporting role.

Contact bottom layer: the forming net on paper machine can be sandwich construction, the bottom that contacts with the dewatering elements of paper machine moulding wet end.

In this specification, comprise into paper layer warp and be called for short the face warp; Become paper layer parallel to be called for short face picks; Warp at the bottom of the contact bottom layer warp abbreviation face; The contact bottom layer parallel is called for short back weft.

Riser: when warp intersected with parallel, warp was above parallel.

The latitude floating-point: when warp intersected with parallel, warp was below parallel.

Fly number: in the textile industry, the dislocation quantity of identical adjoining two yarns of the crooked rule of fabric, equidirectional successively dislocation.

In the paper production process, quality to forming net has important requirement, particularly paper pulp is in the process that forms wet web, the one-tenth paper layer of forming net is in the microcosmic show state, rough riser, latitude floating-point and space are arranged, during when the floating-point skewness or not on same plane, can form on paper web has dysgenic wire mark to paper quality

The moulding of paper is the process that complicated raw fibre deposition is arranged, the intensity of paper, the uniformity of paper, with the uniformity of arranging of raw fibre direct relation is arranged, She Ji forming net in the past, the space that varies in size is along the arranged askew angled with the MD direction, become the dehydration of paper layer even inadequately, cause the inhomogeneous of fiber to arrange easily, thereby the intensity of the uniformity of paper and paper has bad influence.

The life-span that forming net moves on paper machine is an important indicator of weighing the forming net quality; long service life can reduce the cost that reduces papermaking downtime of paper machine; and the structural stability of the service life of forming net and forming net has direct relation; good structural stability can ensure the service life of the length of net, the structure of forming net in the past on MD and CMD direction stability and the drainage performance of forming net have problem to be solved.

The diameter of the contact bottom layer parallel of the service life of forming net and forming net has direct relation on the other hand, larger-diameter contact bottom layer parallel, can improve the service life of forming net, three formable layer nets in the past must increase the diameter of contact bottom layer warp when increasing contact bottom layer parallel diameter, so just increased the bad thickness of three formable layer nets.

In order to address the above problem the performance that improves forming net, three formable layer nets have been designed, make the one-tenth paper layer of forming net have tiny mesh, thin thickness for example discloses a kind of forming net among the ZL02141980.9, and this forming net adopts one to form paper layer warp, one forms paper layer parallel, one set of contact bottom warp, a set of contact bottom parallel, and many at the stitching yarns that becomes paper layer and contact bottom layer to interweave.Becoming paper layer warp is different with the diameter of contact bottom layer warp, in a same warping, can be woven into the three-layer paper making fabric that paper layer warp separates with the contact bottom layer warp, but can not be woven into two-layer or two-layer half papermaking fabric that paper layer warp and contact bottom layer warp become one group of warp, on with the production equipment of same quantity, can not provide a greater variety of products like this to satisfy the demand of how different paper mills, increase the diameter of contact bottom layer parallel if desired, must increase the diameter of contact bottom layer warp simultaneously.

Foregoing has illustrated that forming net for making paper should have the mesh of evenly arranging, become the conplane yarn floating-point that is in of paper layer, good performances such as structural stability, need to reduce the bad thickness of forming net simultaneously, the equipment with same quantity or same production capacity in the production process provides more kinds to satisfy the demand of how different paper mills.

Summary of the invention

The invention provides purpose and be to provide a kind of mesh of evenly arranging that has, become the conplane yarn floating-point that is in of paper layer, good structural stability, and can reduce the forming net for making paper of the bad thickness of forming net.

A kind of forming net for making paper fabric of the present invention, its structure comprise total yarn system of being made up of the yarn system of yarn system that becomes the paper layer and contact bottom layer; Wherein become the yarn system of paper layer to comprise that one forms paper layer paper machine operation direction yarn, one forms the vertical paper machine operation direction of paper layer yarn; Wherein the yarn system of contact bottom layer comprises a set of contact bottom paper machine traffic direction yarn, the vertical paper machine operation direction of set of contact bottom yarn;

Described total yarn system, paper machine operation direction yarn is combined this loop organization of primordial by 20 in the arrangement of vertical paper machine operation direction; Its structure becomes paper layer paper machine operation direction yarn and at least 10 these loop organization of contact bottom layer paper machine operation direction yarn primordial by at least 10; It is identical with the diameter of contact bottom layer paper machine operation direction yarn at the diameter that becomes paper layer paper machine operation direction yarn;

It is characterized in that: become the yarn system of paper layer also to comprise by many three-dimensional compound yarn of one group of same rigidity and many three-dimensional compound yarn of one group of different hardness.Per two formation of many three-dimensional compound yarn of one group of same rigidity are a pair of, and every pair comprises first three-dimensional compound yarn and second three-dimensional compound yarn; Per two formation of many three-dimensional compound yarn of one group of different hardness are a pair of, and every pair comprises the 3rd three-dimensional compound yarn and the 4th three-dimensional compound yarn; Three-dimensional compound yarn and its bearing of trend are vertical becomes paper layer yarn and contact bottom layer yarns interwoven; Comprise into interweave part and non-ly become the paper layer part that interweaves to form of paper layer, the interweave part of part formation fiber support of this one-tenth paper layer; The part that interweaves of the non-one-tenth paper layer yarn of described three-dimensional compound yarn is positioned at into paper layer yarn below and passes 1 or 2 contact bottom layer yarn downsides; Described three-dimensional compound yarn, 2 adjacent three-dimensional compound yarn are being intersected during the part transition to interweaving of non-one-tenth paper layer yarn with the part that interweaves that becomes paper layer yarn.Described three-dimensional compound yarn, between 2 adjacent crosspoints of 2 adjacent three-dimensional compound yarn, wherein a three-dimensional compound yarn becomes the part formation that interweaves of paper layer yarn relative up and down with the non-of interweave part and another root three-dimensional compound yarn that become paper layer yarn.Described yarn system.

Described yarn system is characterized in that into paper layer paper machine operation direction yarn and the trans-substitution mutually of contact bottom layer paper machine operation direction yarn.It is characterized in that into paper layer warp and contact bottom layer warp and can become one group of warp, in a same warping, can be woven into the three-layer paper making fabric that paper layer warp separates with the contact bottom layer warp, also can be woven into two-layer or two-layer half papermaking fabric that paper layer warp and contact bottom layer warp become one group of warp.On with the production equipment of same quantity, can provide the various demand of a greater variety of products like this, and reduce production cost of products with satisfied how different paper mills.

Described yarn system is characterized in that: the vertical paper machine operation direction of contact bottom layer paper machine operation direction yarn yarn with contact bottom layer with on six/once/two on/once the number that flies is that 3 form twill interweaves.The contact bottom layer warp has produced two adjacent latitude floating-points on the contact bottom layer parallel like this, just 2 adjacent contact bottom layer warps interweave with 1 contact bottom layer parallel simultaneously, such structure makes the diameter of contact bottom layer parallel that big variable range be arranged, simultaneously do not need to increase the diameter of contact bottom layer warp, when for example the diameter of contact bottom layer warp was 0.17mm, the diameter variable range of contact bottom layer parallel was between the 0.25mm-0.40mm.So just reduced the bad thickness of three formable layer nets, the situation compacted under netting gear in identical service life has thin thickness, and perhaps the situation compacted under netting gear in same thickness has longer service life.

Described papermaking fabric becomes paper layer paper machine operation direction yarn and three-dimensional compound yarn and becomes the vertical paper machine operation direction of paper layer yarn to interweave with plain weave.

Described papermaking fabric, first and second three-dimensional compound yarn that it is characterized in that many three-dimensional compound yarn of described one group of same rigidity have first hardness, the 3rd three-dimensional compound yarn of many three-dimensional compound yarn of described one group of different hardness has second hardness, the 4th three-dimensional compound yarn has the 3rd hardness, described second hardness is less than or equal to described first hardness, and described the 3rd hardness is more than or equal to described first hardness.The difference of the bending length that can provide according to three-dimensional compound yarn is determined the one the second three hardness with matching like this, make three-dimensional compound yarn become the top of paper layer to be in identical plane, and had the mesh of evenly arranging with the top that becomes paper layer parallel.

Described papermaking fabric, the thickness of wherein said fabric is greatly between 0.60m～1.55m

Description of drawings

Fig. 1 is the vertical view of the one-tenth paper layer of the present invention's three formable layer nets;

Fig. 2 is the vertical view of the contact bottom layer of embodiment one;

Fig. 3 A-Fig. 3 B is the cutaway view of the MD direction of forming net illustrated in figures 1 and 2;

Fig. 4 is the vertical view of the one-tenth paper layer of the second embodiment of the present invention;

Fig. 5 A-Fig. 5 B is the cutaway view of the MD direction of second embodiment;

Fig. 6 A-Fig. 6 J is the cutaway view of the CMD direction of second embodiment;

Fig. 7 is the vertical view of the one-tenth paper layer of the third embodiment of the present invention;

Fig. 8 is the vertical view of the contact bottom layer of the 3rd embodiment among Fig. 7;

Fig. 9 A-Fig. 9 J is the cutaway view of the CMD direction of the 3rd embodiment;

Figure 10 is the vertical view of the contact bottom layer of the 4th embodiment;

Figure 11 is the vertical view of the one-tenth paper layer of the 5th embodiment;

Figure 12 is the vertical view of the contact bottom layer of the 5th embodiment;

Figure 13 is the vertical view of the contact bottom layer of the 6th embodiment;

The specific embodiment

Below with reference to accompanying drawings the present invention is made detailed specific description.

Identical identification number is represented same yarn or parts in the accompanying drawing, is easy-to-read, and the structure of embodiment is amplified.

First embodiment

Shown that in Fig. 1 and Fig. 2 a kind of 20 combine three formable layer nets 801, shown in the figure is a basic loop organization of this forming net 801, as can be seen from Figure 1, the one-tenth paper layer of three formable layer nets 801, the loop organization of each repetition has 10 faces through 12,14,16,18,20,22,24,26,28,30, with 10 face picks 91-100 and 20 three-dimensional compound yarn 61-80 become the paper layer part that interweaves, they are interweaved together in the plain weave mode, for example, face picks 91-100 passes face above 12, the face that passes again is below 14, the face that passes again is above 16, and the face that passes again is below 18, and the rest may be inferred up to the face that passes below 30.

Fig. 2 has shown the structure of the contact bottom layer of forming net 801, the loop organization of each repetition comprises that 10 foundation are through 11,13,15,17,19,21,23,25,27,29 and 10 foundation latitude 51-60, the end, is through being positioned at face through the below, be positioned at 12 below, 13 as 11 and be positioned at below of 14 or the like the rest may be inferred, the end through with back weft with six on/once/two on/once the number that flies is that 3 form twill interweaves.For example connecing the end 11 passes the top of back weft 51-56, pass the below of back weft 57,

pass

58,59 top, the rest may be inferred to pass below of 60 or the like, back weft 51 is passed at the adjacent end 13 that connects, 52 top, pass 53 below, pass the top of 54-59, the rest may be inferred to pass below of 60 or the like, this shows, the latitude floating-point of back weft is to occur in pairs, 2 adjacent ends, are through intersecting with back weft jointly, make when the back weft diameter is 0.35mm-0.40mm that the diameter of warp can be less than 0.18mm, so just reduced because through the bad thickness of the three formable layer nets that increasing caused of linear diameter.

See figures.1.and.2,20 three-dimensional compound yarn of the one-tenth paper layer of forming

net

801,61 and 62 is a pair of, 63 and 64 is a pair of, 65 and 66 is a pair of, and 67 and 68 is a pair of, and 69 and 70 is a pair of, 71 and 72 is a pair of, 73 and 74 is a pair of, and 75 and 76 is a pair of, and 77 and 78 is a pair of, 79 and 80 is a pair of, these three-dimensional compound yarn are becoming between two the adjacent parallel of paper layer being into the inseparable part of paper layer, and between two adjacent parallels of contact bottom layer, for example three-dimensional compound yarn to 61 and 62 between

face picks

91 and 92, between

back weft

51 and 52; Three-dimensional compound yarn to 63 and 64 between

face picks

92 and 93, between

back weft

52 and 53; Three-dimensional compound yarn to 65 and 66 between

face picks

93 and 94, between

back weft

53 and 54; Three-dimensional compound yarn is to 67 and 68 between

face picks

94 and 95, and the rest may be inferred between

back weft

54 and 55 or the like, and the one-tenth paper layer and the contact bottom layer of forming net 801 linked together.The quantity sum of three-dimensional compound yarn and face picks is 3 to 1 with the ratio of the quantity of back weft.

Fig. 3 A-Fig. 3 B is the cutaway view of the MD direction of forming net 801; Shown that face warp, the end are through passing the path of face picks and back weft and three-dimensional compound yarn, for example face passes from all face picks 91 to the below of face picks 100 through 16, and simultaneously from three-dimensional compound yarn 61 to three-dimensional compound yarn 80 top pass, form one the circulation and the rest may be inferred.The end 15, passed from back weft 5l, 52 top and the below of three-

dimensional compound yarn

62,64, pass the below of back weft 53 again, pass the top of

back weft

54,55 and three-dimensional compound yarn 67 again, pass three-

dimensional compound yarn

69,70 belows again, pass the below of back weft 56 again, pass the top of

back weft

57,58,59,60 and three-dimensional compound yarn 77 and the below of three-

dimensional compound yarn

74,75,76,78,79,80 again, also the rest may be inferred to form a circulation.Face passes above face picks 100 at all face picks 91 through 26, and simultaneously downwards hook is worn posture in standing (qigong)

bluk recombination yarn

61,64,65,67,69,72,74,75,77,79, forms circulation also.The below of back weft 51 is passed at the end 25, three-

dimensional compound yarn

61,62 below, pass the top three-dimensional compound yarn 63 of back weft 52 again, 64 belows, pass back weft 53 again, 54,55,56,57 top, three-dimensional

compound yarn

65,66 belows, pass the below of the top three-dimensional compound yarn 67 of three-dimensional compound yarn 68 again, pass three-dimensional compound yarn 69 again, 70,71,72,73,74,75,76 belows, pass the below of back weft 58, pass back weft 59 again, the top of the below 78 of 60 top three-dimensional compound yarn 77, pass three-dimensional compound yarn 79 again, 80 belows form a circulation and the rest may be inferred.

Shown in Fig. 1, Fig. 2 and Fig. 3 A-Fig. 3 B, the three-dimensional compound yarn of forming net 801 is right, is positioned in the middle of two adjacent face picks; The part that interweaves of the non-one-tenth paper layer yarn of three-dimensional compound yarn is positioned at into paper layer yarn below and passes 1 foundation through downside; 2 adjacent three-dimensional compound yarn, for example three-dimensional compound yarn 61 is being intersected during the part transition to interweaving of non-one-tenth paper layer yarn with the part that interweaves that becomes paper layer yarn with 62, and its crosspoint is positioned at the below of 19 top 20 and the below of 27 top 28.The non-of its first three-dimensional compound yarn 61 and the interweave part and second three-dimensional compound yarn 62 that become paper layer yarn becomes the part formation that interweaves of paper layer yarn relative up and down between these 2 adjacent crosspoints.A pair of three-dimensional compound yarn, in a basic loop organization, wherein first three-dimensional compound yarn 61 is passed 3 face above 30,14,18, with its below corresponding second three-dimensional compound yarn 62 non-become the part that interweaves of paper layer yarn to pass 1 foundation through 13 downside, the part that interweaves of the one-tenth paper layer yarn of second three-dimensional compound yarn 62 is passed 2 one-tenth faces above 22,26, with its below the part that interweaves of non-one-tenth paper layer yarn of corresponding first three-dimensional compound yarn 61 pass 1 foundation through 23 downside.

Shown in Fig. 1, Fig. 2 and Fig. 3 A-Fig. 3 B, forming net 801 has first three-dimensional compound yarn 61 in every pair of three-dimensional compound yarn of many three-dimensional compound yarn of same rigidity of first hardness, 65,69,73,77 in becoming the paper layer part that interweaves that 3 latitude floating-points are provided in a basic loop organization, and the part that interweaves of non-one-tenth paper layer is passed the position of 1 contact bottom layer warp downside, is positioned at the centre position 90l of the end continuous 6 risers when interweaving with back weft; Second three-

dimensional compound yarn

62,66,70,74,78 in becoming the paper layer part that interweaves that 2 latitude floating-points then are provided in a basic loop organization, and the part that interweaves of non-one-tenth paper layer is passed the position of 1 foundation through downside, is positioned at the centre position of the end continuous 2 risers 902 when interweaving with back weft.

Shown in Fig. 1, Fig. 2 and Fig. 3 A-Fig. 3 B, each three-dimensional compound yarn that forming net 801 has many three-dimensional compound yarn of different hardness among have the 3rd three-

dimensional compound yarn

63,67,71,75 of second hardness, the 79 one-tenth paper layers part that interweaves 3 latitude floating-points be provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 foundation through downside, is positioned at the centre position of the end continuous 2 risers 902 when interweaving with back weft; Each three-dimensional compound yarn among have the 3rd hardness the 4th three-

dimensional compound yarn

64,68,72,76,80 in becoming the paper layer part that interweaves that 2 latitude floating-points then are provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 foundation through downside, is positioned at the centre position of the end continuous 6 risers 901 when interweaving with back weft.Second hardness of present embodiment is less than first hardness, the 3rd hardness is greater than first hardness, the difference of the bending length that provides according to three-dimensional compound yarn is determined first, second, third hardness with matching like this, make three-dimensional compound yarn become the top of paper layer to be in identical plane, and had the mesh of evenly arranging with the napex that becomes paper layer parallel.

By Fig. 1, shown in Figure 2,20 three-dimensional compound yarn of the one-tenth paper layer of forming net 801,2 adjacent three-dimensional compound yarn, as three-dimensional compound yarn 61 and three-dimensional compound yarn 62, three-dimensional compound yarn 63 and three-dimensional compound yarn 64 ... Deng, can change woven front and back order, for example three-dimensional

compound yarn

61,63,65,67,69,71,, 73,75,77,79 in the front side, three-dimensional

compound yarn

62,64,66,68,70,72,74,76,78,80 is at rear side; Also can become three-

dimensional compound yarn

62,64,66,68,70,72,74,76,78,80 in the front side, three-dimensional

compound yarn

61,63,65,67,69,71,73,75,77,79 is at rear side; Also can become three-

dimensional compound yarn

61,64,65,68,69,72,73,76,77,80 in the front side, three-

dimensional compound yarn

62,63,66,67,70,71,74,75,78,79 is at rear side, or the like the rest may be inferred.

Second embodiment

Provide the second embodiment of the present invention 20 by Fig. 4-Fig. 6 and combined three formable layer nets 802.Forming net 802 is included in to be weaved on the texture and identical one-tenth paper layer embodiment illustrated in fig. 1.Shown in the figure is a basic loop organization of these forming net 802 contact bottom layer, as can be seen from Figure 4, the contact bottom layer of three formable layer nets 802, the loop organization of each repetition have with 10 foundation through 111,113,115,117,119,121,123,125,127,129 and 10 foundation latitude 151-160, forming net 802 also comprises 10 pairs of three-dimensional compound yarn 161 and 162-179 and 180.

The end 111,113,115,117,119,121,123,125,127,129 of forming net 802 with on identical with forming net shown in Figure 1 801 six/once/two on/once the number that flies is that 3 form twill interweaves.Pass the top of back weft 151-156 as the end 111, pass the below of back weft 157, pass the top of back weft 158,159, the rest may be inferred to pass the below or the like of back weft 160, the top of back weft 151,152 is passed at the adjacent end 113, pass the below of back weft 153, pass the top of back weft 154-159, the rest may be inferred to pass the below or the like of back weft 160.

Fig. 5 A-Fig. 5 B is the cutaway view of the MD direction of forming net 802; Shown that face warp, the end through passing the path of face picks and back weft and three-dimensional compound yarn, interweave with face picks and three-dimensional compound yarn in the 801 same modes of the forming net shown in Fig. 3 A through 16 as face.The end 115, interweave with same mode and the back weft three-dimensional compound yarn in the ends shown in Fig. 3 A 15 except that passing above second three-dimensional compound yarn 162 and the 4th three-dimensional compound yarn 172.Face through 26 and the end 126 interweave with face picks and three-dimensional compound yarn in the 801 same modes of the forming net shown in Fig. 3 B.

Shown in Fig. 4, Fig. 5 A-Fig. 5 B and Fig. 6 A-Fig. 6 J, the three-dimensional compound yarn of forming net 802 is right, is positioned in the middle of two adjacent face picks; The part that interweaves of the non-one-tenth paper layer yarn of three-dimensional compound yarn is positioned at into paper layer yarn below and passes 1 or 2 foundation through downside; 2 adjacent three-dimensional compound yarn, intersecting during the part transition to interweaving of non-one-tenth paper layer yarn with the part that interweaves that becomes paper layer yarn with 162 as 161, the crosspoint is positioned at the below of 119 top 20 and the below of 127 top 28, between this adjacent crosspoint, wherein first three-dimensional compound yarn 161 becomes the part formation that interweaves of paper layer yarn relative up and down with the non-of the interweave part and second three-dimensional compound yarn 162 that become paper layer yarn.A pair of three-dimensional compound yarn, in a basic loop organization, first three-dimensional compound yarn 161 is passed 3 face above 30,14,18, with its below corresponding another root three-dimensional compound yarn (162) non-become the part that interweaves of paper layer yarn to pass 2 foundation through 113,115 downside, the part that interweaves of the one-tenth paper layer yarn of another root three-dimensional compound yarn (162) is passed 2 faces above 22,26, with its below a corresponding three-dimensional compound yarn (161) non-become the part that interweaves of paper layer yarn to pass 1 foundation through 123 downside.

Shown in Fig. 4, Fig. 5 A-Fig. 5 B and Fig. 6 A-Fig. 6 J, forming net 802 has every pair of three-dimensional compound yarn (for example 161 and 161 of the many three-dimensional compound yarn of same rigidity of first hardness, 165 and 166,169 and 170,173 and 174,177 and 178) first three-dimensional compound yarn becomes the paper layer to interweave partly provides 3 latitude floating-points in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of l foundation through downside, is positioned at the centre position (901) of the end continuous 6 risers when interweaving with back weft; Second three-dimensional compound yarn becomes the paper layer to interweave partly then provides 2 latitude floating-points in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 2 foundation through downside, is positioned at the wherein centre position of 1 foundation continuous 2 risers (902) when interweaving with back weft.

Shown in Fig. 4, Fig. 5 A-Fig. 5 B and Fig. 3 A-Fig. 3 J, each three-dimensional compound yarn that forming net 802 has many three-dimensional compound yarn of different hardness among have second hardness the 3rd three-dimensional compound yarn (for example 163,167,171,175,179) become the paper layer part that interweaves that 3 latitude floating-points are provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 foundation through downside, is positioned at the centre position of the end continuous 2 risers (902) when interweaving with back weft; Each three-dimensional compound yarn among have the 3rd hardness the 4th three-dimensional compound yarn (for example 164,168,172,176,180) become the paper layer part that interweaves that 2 latitude floating-points then are provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 2 foundation through downside, is positioned at the wherein centre position of 1 foundation continuous 6 risers (901) when interweaving with back weft.Second hardness of present embodiment is less than first hardness, the 3rd hardness is more than or equal to first hardness, the difference of the bending length that provides according to three-dimensional compound yarn is determined the one the second three hardness with matching like this, make three-dimensional compound yarn become the top of paper layer to be in identical plane, and had the mesh of evenly arranging with the top that becomes paper layer parallel.

Shown in Fig. 4, Fig. 5 A-Fig. 5 B and Fig. 3 A-Fig. 3 J, 20 three-dimensional compound yarn of the one-tenth paper layer of forming net 802, identical with first embodiment, 2 adjacent three-dimensional compound yarn can change the front and back order of making.

The 3rd embodiment

Provide the third embodiment of the present invention 20 by Fig. 7-Fig. 9 and combined three formable layer nets 803.Shown in the figure is a basic loop organization of this forming net 803, as can be seen from Figure 7, the one-tenth paper layer of three formable layer nets 803, the loop organization of each repetition has 10 faces through 212,214,216,218,220,222,224,226,228,230 with 20 face picks 291-310 and 20 three-dimensional compound yarn 261-280 become the paper layer part that interweaves, they are interweaved together in the plain weave mode, for example, face picks 291,292,295,296,299,300,303,304,307,308 pass face above 212, pass again 214 below, pass again 216 above, pass again 218 below, the rest may be inferred up to pass 230 below.Face picks 293,294,297,298,301,302,305,306,309,310 passes face below 212, pass again 214 above, pass again 216 below, pass again 218 above, the rest may be inferred up to pass 230 above.

Fig. 8 has shown the structure of the contact bottom layer of forming net 803, the loop organization of each repetition comprises that 10 foundation are through 211,213,215,217,219,221,223,225,227,229 and 20 foundation latitude 241-260, same as the previously described embodiments, 803 ends of forming net through with connect back weft with on six/once/two on/once the number that flies is that 3 form twill interweaves, reduced because of bad thickness through the three formable layer nets that increasing caused of linear diameter.

With reference to Fig. 7 and Fig. 8,20 three-dimensional compound yarn of the one-tenth paper layer of forming net 803, per 2 three-dimensional compound yarn become a contraposition, are a pair of as three-dimensional compound yarn 261,262, three-dimensional compound yarn 263,264 is a pair of, or the like the rest may be inferred; This three-dimensional compound yarn is between 2 adjacent face picks, as three-dimensional compound yarn to 261 and 262 between face picks 291,292, between back weft 241,242; Three-dimensional compound yarn is to 263,264 between face picks 293 and 294, and the rest may be inferred to be positioned at asking of

back weft

243 and 244 or the like.Shown in Figure 8 by Fig. 7, the quantity sum of three-dimensional compound yarn and face picks is 2 to 1 with the ratio of the quantity of back weft.Under the thread density same case of MD direction, have 1.5 times back weft quantity than forming net 801,802, therefore have better wear resistance energy and longer service life.

Fig. 9 A-Fig. 9 J is the cutaway view of the CMD direction of forming net 803; The three-dimensional compound yarn that are positioned in the middle of two adjacent face picks of basic loop organization that shown forming net 803 are right, and it becomes the part that interweaves of paper layer yarn identical with forming net 801 with the part that interweaves of non-one-tenth paper layer yarn.

Shown in Fig. 7, Fig. 8 and Fig. 9 A-Fig. 9 J, many three-dimensional compound yarn centerings first three-dimensional compound yarn 261,265,269,273,277 that forming net 803 has identical first hardness partly provides 3 latitude floating-points in becoming the paper layer to interweave in a basic loop organization, second three-dimensional compound yarn 262,266,270,274,278 partly then provides 2 latitude floating-points in becoming the paper layer to interweave in a basic loop organization, the part that interweaves of the non-one-tenth paper of first, second three-dimensional compound yarn layer is identical with forming net 801 with the interleaving mode of end warp.

Shown in Fig. 7, Fig. 8 and Fig. 9 A-Fig. 9 J, forming net 803 has the 3rd three-dimensional compound yarn 263,267,271,275,279 that many three-dimensional compound yarn centerings of different hardness have second hardness in becoming the paper layer part that interweaves that 3 latitude floating-points are provided in a basic loop organization; The 4th three-dimensional compound yarn 264,268,272,276,280 that each three-dimensional compound yarn centering has the 3rd hardness partly then provides 2 latitude floating-points in becoming the paper layer to interweave in a basic loop organization, the part that interweaves of the non-one-tenth paper of the 3rd, the 4th three-dimensional compound yarn layer is identical with forming net 801 with the interleaving mode of end warp.Second hardness of present embodiment is less than first hardness, and the 3rd hardness is greater than first hardness, and is identical with forming net 801 in the characteristics that had aspect the surface layer floating-point.

By Fig. 7, shown in Figure 8,20 three-dimensional compound yarn of the one-tenth paper layer of forming net 803 are identical with forming net 801, and 2 adjacent three-dimensional compound yarn can change woven front and back order.

The 4th embodiment

Provide the fourth embodiment of the present invention 20 by Figure 10 and combined three formable layer nets 804.Forming net 804 is included in to be weaved on the texture and identical one-tenth paper layer embodiment illustrated in fig. 7.

Figure 10 has shown the structure of contact bottom layer of a basic loop organization of forming net 804, the loop organization of each repetition comprises that 10 faces are through 212,214,216,218,220,222,224,226,228,230,10 foundation are through 311,313,315,317,319,321,323,325,327,329 and 20 foundation latitude 341-360, the end, is through being positioned at face through the below, 804 ends of forming net through with connect back weft with on six/once/two on/once the number that flies is that 3 form twill interweaves, reduced because of bad thickness through the three formable layer nets that increasing caused of linear diameter.

With reference to Figure 10 and Fig. 7, identical with forming net 803,20 three-dimensional compound yarn of the one-tenth paper layer of forming net 804, each three-dimensional compound yarn is between adjacent face picks, per 2 adjacent three-dimensional compound yarn between 2 face picks are arranged, three-dimensional compound yarn is between two adjacent back wefts, and is shown in Figure 10 by Fig. 7, and the quantity sum of three-dimensional compound yarn and face picks is 2 to 1 with the ratio of the quantity of back weft.Under the thread density same case of MD direction, have 1.5 times back weft quantity than forming net 801,802, therefore have better wear resistance energy and longer service life.

By Figure 10 and shown in Figure 7, forming net 804 has the identical first hardness three-dimensional compound yarn centering, first three-dimensional compound yarn 361,365,369,373,377 partly provides 3 latitude floating-points in becoming the paper layer to interweave in a basic loop organization, second three-dimensional compound yarn 362,366,370,374,378 partly then provides 2 latitude floating-points in becoming the paper layer to interweave in a basic loop organization, the part that interweaves of the non-one-tenth paper of first, second three-dimensional compound yarn layer is identical with forming net 802 with the interleaving mode of end warp.

By Figure 10 and shown in Figure 7, forming net 804 has the 3rd three-dimensional compound yarn 363,367,371,375,379 that many three-dimensional compound yarn centerings of different hardness have second hardness in becoming the paper layer part that interweaves that 3 latitude floating-points are provided in a basic loop organization; Each three-dimensional compound yarn among have the 3rd hardness the 4th three-dimensional compound yarn 364,368,372,376,380 in becoming the paper layer part that interweaves that 2 latitude floating-points then are provided in a basic loop organization, the part that interweaves of the non-one-tenth paper of the three or four three-dimensional compound yarn layer is identical with forming net 802 with the interleaving mode of end warp.Second hardness of present embodiment is less than first hardness, and the 3rd hardness is more than or equal to first hardness, and is identical with forming net 802 in the characteristics that become the paper layer to be had.

By Fig. 7, shown in Figure 10,20 three-dimensional compound yarn of the one-tenth paper layer of forming net 804 are identical with forming net 802, and 2 adjacent three-dimensional compound yarn can change woven front and back order.

The 5th embodiment

Provide the fifth embodiment of the present invention 20 by Figure 11-Figure 12 and combined three formable layer nets 805.Forming net 805 is included in to be weaved on the texture and the identical contact bottom layer of first embodiment shown in Figure 1.

Figure 11 has shown the structure of one-tenth paper layer of a basic loop organization of forming net 805, the loop organization of each repetition has 10 faces through 512,514,516,518,520,522,524,526,528,530 with 5 face picks 591-595 and 10 three-dimensional compound yarn 561-570 become the paper layer part that interweaves, they are interweaved together in the plain weave mode, for example, face picks 591,592,593,594,595 pass face above 512, pass again 514 below, pass again 516 above, pass again 518 below, the rest may be inferred up to pass 530 below.

Figure 12 has shown the structure of the contact bottom layer of forming net 805, identical with first embodiment shown in Figure 1, the loop organization of each repetition comprises that 10 foundation are through 511,513,515,517,519,521,523,525,527,529 and 10 foundation latitude 551-560, same as the previously described embodiments, 805 ends of forming net through with connect back weft with on six/once/two on/once the number that flies is that 3 form twill interweaves, and has identical advantage.

With reference to Figure 11 and Figure 12,10 three-dimensional compound yarn of the one-tenth paper layer of forming net 805, each three-dimensional compound yarn is between adjacent face picks, per 2 adjacent three-dimensional compound yarn between 1 face picks is arranged, for example three-dimensional compound yarn 561 and 562 is a pair of, three-dimensional compound yarn 563 and 564 is a pair of, or the like the rest may be inferred, these three-dimensional compound yarn are to being into the inseparable part of paper layer, between two adjacent face picks, and between two adjacent back wefts, for example three-dimensional compound yarn to 561 and 562 between face picks 591 and 595, between back weft 551 and 552; Three-dimensional compound yarn to 563 and 564 between face picks 591 and 592, the rest may be inferred between back weft 552 and 553 or the like, and the one-tenth paper layer and the contact bottom layer of forming net 805 linked together, by Figure 11 and shown in Figure 12, the quantity sum of three-dimensional compound yarn and face picks is 3 to 2 with the ratio of the quantity of back weft.Under the thread density same case of MD direction, have than forming net 803,804 and to have more 1/3 back weft quantity, therefore have better wear resistance can and longer service life.

By Figure 11 and shown in Figure 12, forming net 805 has every pair of three-

dimensional compound yarn

561 and 562 of the many three-dimensional compound yarn of same rigidity of first hardness, 563 and 564,565 and 566,567 and 568, first three-dimensional compound yarn 561 in 569 and 570,563,565,567,569 one-tenth paper layers interweave 3 latitude floating-points partly are provided in a basic loop organization, and the part that interweaves of non-one-tenth paper layer is passed the position of 1 contact bottom layer warp downside, are positioned at the centre position (901) of the end continuous 6 risers when interweaving with back weft; Second three-dimensional compound yarn 562,564,566,568,570 one-tenth paper layers interweave 2 latitude floating-points partly then are provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 foundation through downside, is positioned at the centre position of the end continuous 2 risers (902) when interweaving with back weft; The part that interweaves of the one the second non-one-tenth paper of the three-dimensional compound yarn layers is identical with forming net 801 with the interleaving mode of end warp, with forming net 801 inequality be that forming net 805 does not have many three-dimensional compound yarn of different hardness.

The 6th embodiment

Figure 13 has provided the sixth embodiment of the present invention 20 and has combined three formable layer nets 806.Forming net 806 be included in weave on the texture with Figure 11 with shown in Figure 12 shown in the 5th embodiment identical become the paper layer.

Figure 13 has shown the structure of contact bottom layer of a basic loop organization of forming net 806, the loop organization of each repetition comprises that 10 foundation are through 611,613,615,617,619,621,623,625,627,629 and 10 foundation latitude 651-660, same as the previously described embodiments, 806 ends of forming net through with connect back weft with on six/once/two on/once the number that flies is that 3 form twill interweaves, and has identical advantage.

With reference to Figure 11 and Figure 13, identical with the 5th embodiment, 10 three-dimensional compound yarn of the one-tenth paper layer of forming net 806, each three-dimensional compound yarn is between adjacent face picks, per 2 adjacent three-dimensional compound yarn have been asked 1 face picks to it, and have identical advantage.

By Figure 11 and shown in Figure 13, forming net 806 has the every couple of three-dimensional compound yarn 66l and 662 of the many three-dimensional compound yarn of same rigidity of first hardness, 663 and 664,665 and 666,667 and 668, first three-dimensional compound yarn 661 in 669 and 670,663,665,667,669 one-tenth paper layers interweave 3 latitude floating-points partly are provided in a basic loop organization, and the part that interweaves of non-one-tenth paper layer is passed the position of 1 contact bottom layer warp downside, are positioned at the centre position (901) of the end continuous 6 risers when interweaving with back weft; Second three-dimensional compound yarn 662,664,666,668,670 one-tenth paper layers interweave 2 latitude floating-points partly then are provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 2 foundation through downside, it is identical with forming net 802 with the interleaving mode of end warp to be arranged in the part that interweaves of asking the position the one the second non-one-tenth paper of the three-dimensional compound yarn layers of continuous 2 risers (902) when interweaving with back weft of 1 foundation wherein, with forming net 802 inequality be that forming net 806 does not have many three-dimensional compound yarn of different hardness.

In papermaking fabric structure of the present invention, selecting for use of yarn is according to paper technology and paper making equipment the requirement of papermaking fabric to be determined, the cross section that for example can select monofilament, multifilament, twisting multifilament, yarn for use can be circle, deltiod, ellipse or the like, the material of yarn can be polyester, nylon, polypropylene, aromatic polyamides, is normally used polyester of the industry and nylon and use maximum.

The foregoing description has illustrated the present invention in illustrated mode, but the foregoing description that illustrates with diagramatic way is not a limitation of the present invention, and protection domain of the present invention is limited by claim.

Claims

1. forming net for making paper, its structure comprise total yarn system of being made up of the yarn system of yarn system that becomes the paper layer and contact bottom layer; Wherein become the yarn system of paper layer to comprise that one forms paper layer paper machine operation direction yarn, the vertical paper machine operation direction of composition paper layer yarn; The yarn system that forms contact bottom layer comprises a set of contact bottom paper machine traffic direction yarn, the vertical paper machine operation direction of set of contact bottom yarn;

Described total yarn system, paper machine operation direction yarn is combined this loop organization of primordial by 20 in the arrangement of vertical paper machine operation direction; Its structure becomes paper layer paper machine operation direction yarn and 10 these loop organization of contact bottom layer paper machine operation direction yarn primordial by 10;

Described total yarn system, it is identical with the diameter of contact bottom layer paper machine operation direction yarn at the diameter that becomes paper layer paper machine operation direction yarn;

It is characterized in that: become the yarn system of paper layer also to comprise by many three-dimensional compound yarn of one group of same rigidity and many three-dimensional compound yarn of one group of different hardness.Per two formation of many three-dimensional compound yarn of one group of same rigidity are a pair of, and every pair comprises first three-dimensional compound yarn and second three-dimensional compound yarn, and are positioned in the middle of two adjacent one-tenth paper layer yarns; Per two formation of many three-dimensional compound yarn of one group of different hardness are a pair of, and every pair comprises the 3rd three-dimensional compound yarn and the 4th three-dimensional compound yarn, and are positioned in the middle of two adjacent one-tenth paper layer yarns; Three-dimensional compound yarn and its bearing of trend are vertical becomes paper layer yarn and contact bottom layer yarns interwoven; Comprise into interweave part and non-ly become the paper layer part that interweaves to form of paper layer, the interweave part of part formation fiber support of this one-tenth paper layer;

The part that interweaves of the non-one-tenth paper layer yarn of described three-dimensional compound yarn is positioned at into paper layer yarn below and passes 1 or 2 contact bottom layer yarn downsides;

Described three-dimensional compound yarn, 2 adjacent three-dimensional compound yarn are being intersected during the part transition to interweaving of non-one-tenth paper layer yarn with the part that interweaves that becomes paper layer yarn; Between 2 adjacent crosspoints of 2 adjacent three-dimensional compound yarn, wherein a three-dimensional compound yarn becomes the part formation that interweaves of paper layer yarn relative up and down with the non-of interweave part and another root three-dimensional compound yarn that become paper layer yarn;

Described total yarn system is characterized in that into paper layer paper machine operation direction yarn and the trans-substitution mutually of contact bottom layer paper machine operation direction yarn;

Described contact bottom layer yarn system, its paper machine operation direction yarn and vertical paper machine operation direction yarn with on six/once/two on/once the number that flies is that 3 form twill interweaves.

2. forming net for making paper according to claim 1 is characterized in that: become paper layer paper machine operation direction yarn and three-dimensional compound yarn and become the vertical paper machine operation direction of paper layer yarn to interweave with plain weave.

3. papermaking fabric according to claim 1, it is characterized in that: first and second three-dimensional compound yarn of many three-dimensional compound yarn of described one group of same rigidity have first hardness, the 3rd three-dimensional compound yarn of many three-dimensional compound yarn of described one group of different hardness has second hardness, the 4th three-dimensional compound yarn has the 3rd hardness, described second hardness is less than or equal to described first hardness, and described the 3rd hardness is more than or equal to described first hardness.

4. forming net for making paper according to claim 1 is characterized in that: described three-dimensional compound yarn is to being positioned in the middle of the two adjacent vertical paper machine operation direction of one-tenth paper layer yarns; Described every become the vertical paper machine operation direction of paper layer yarn be positioned at adjacent same rigidity three-dimensional compound yarn to or the different hardness three-dimensional compound yarn to the centre.

5. papermaking fabric according to claim 1 is characterized in that: described every become the vertical paper machine operation direction of paper layer yarn the same rigidity three-dimensional compound yarn to or different hardness three-dimensional compound yarn pair with become between the vertical paper machine operation direction of the paper layer yarn.

6. forming net for making paper according to claim 1, it is characterized in that: first three-dimensional compound yarn becomes the paper layer to interweave partly provides 3 latitude floating-points in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 contact bottom layer paper machine operation direction yarn downside, the centre position (901) of continuous 6 risers when being positioned at the vertical paper machine operation direction with contact bottom layer of contact bottom layer paper machine operation direction yarn yarns interwoven; Second three-dimensional compound yarn becomes the paper layer to interweave partly then provides 2 latitude floating-points in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 or 2 contact bottom layer paper machine operation direction yarn downside, the centre position of continuous 2 risers (902) when being positioned at the vertical paper machine operation direction with contact bottom layer of contact bottom layer paper machine operation direction yarn yarns interwoven.

7. forming net for making paper according to claim 4, it is characterized in that the 3rd three-dimensional compound yarn becomes the paper layer to interweave 3 latitude floating-points partly are provided in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 contact bottom layer paper machine operation direction yarn downside, the centre position of continuous 2 risers (902) when being positioned at the vertical paper machine operation direction with contact bottom layer of contact bottom layer paper machine operation direction yarn yarns interwoven; The 4th three-dimensional compound yarn becomes the paper layer to interweave partly then provides 2 latitude floating-points in a basic loop organization, the part that interweaves of non-one-tenth paper layer is passed the position of 1 or 2 contact bottom layer paper machine operation direction yarn downside, the centre position of continuous 6 risers (901) when being positioned at the vertical paper machine operation direction with contact bottom layer of contact bottom layer paper machine operation direction yarn yarns interwoven.

8. forming net for making paper according to claim 1, wherein said basic loop organization comprises the vertical paper machine operation direction with contact bottom layer of the one-tenth paper layer vertical paper machine operation direction yarn yarn of equal number.

9. forming net for making paper according to claim 1 is characterized in that 2 adjacent three-dimensional compound yarn, can change woven sequencing.

10. forming net for making paper according to claim 1, the thickness of wherein said fabric is greatly between 0.60mm～1.55mm.