JP7210786B1 - industrial textiles - Google Patents

Abstract

An object of the present invention is to provide an industrial fabric capable of improving dewatering properties.
The upper side fabric and the lower side fabric are bound by upper side binding yarns that are part of the plurality of upper side warps and lower side binding yarns that are part of the plurality of lower side warps. . On the surface of the upper surface side fabric, a first weave pattern is formed by alternately passing over one upper surface side weft and under one upper surface side weft by warps positioned on the upper surface side. The knuckles formed on the surface of the lower side fabric by the lower side warps passing under the lower side wefts are evenly arranged in an oblique direction. On the surface of the lower side fabric, a second weaving pattern is repeatedly formed by the warp located on the lower side, passing under one lower side weft and passing over three continuous lower side wefts. The numbers of upper surface side warps and lower surface side warps are the same, and the numbers of upper surface side wefts and lower surface side wefts are the same.
[Selection drawing] Fig. 1

Description

The present invention relates to industrial fabrics used on paper machines.

2. Description of the Related Art Conventionally, as industrial fabrics used in paper machines, papermaking nets made by weaving warps and wefts have been widely used. There are various properties required for papermaking nets. An industrial fabric is disclosed comprising a bottom side fabric. In this industrial fabric, the upper surface side warp functions as a binding yarn by weaving the lower surface side weft, and the upper surface side warp functions as a binding yarn and the lower surface side weft is woven from the lower side. and a lower side warp that functions as a binding yarn by weaving the layer side weft.

JP-A-2003-342889

Machines with a high-speed dehydration mechanism cause pinholes and fiber carryback due to fibers sticking into industrial fabrics. In addition, the water retained inside the net may circulate and cause a splash.

An object of the present invention is to provide an industrial woven fabric that can ensure good surface properties and improve dewatering properties.

In order to solve the above-mentioned problems, an industrial fabric according to one aspect of the present invention comprises a top side fabric composed of top side warps and top side wefts, and a bottom side warp and a bottom side weft that are knotted to the top side fabric. and a lower side fabric. The upper surface side fabric and the lower surface side fabric are formed by upper surface side binding yarns that are part of the upper surface side warps of the plurality of upper surface side warps and lower surface side binding yarns that are part of the lower surface side warps of the plurality of lower surface side warps. A first weaving pattern is formed on the surface of the upper surface side fabric that is knotted and alternately passes over one upper surface side weft and under one upper surface side weft by the warp yarns located on the upper surface side, The knuckles formed on the surface of the lower side fabric by the lower side warps passing under the lower side wefts are uniformly arranged in a diagonal direction. The positioned warps repeatedly form a second weaving pattern that passes under one bottom side weft and over three continuous bottom side wefts, and the number of top side warps and bottom side warps is the same. and the number of top side wefts and bottom side wefts is the same.

ADVANTAGE OF THE INVENTION According to this invention, the industrial woven fabric which can ensure favorable surface property and can improve a dewatering property can be provided.

FIG. 2 is a design diagram showing the complete weave of the industrial fabric according to the first embodiment; FIG. 2 is a cross-sectional view in the warp direction along warps in the design drawing shown in FIG. 1 ; FIG. 3(a) is a partial cross-sectional view in the weft direction along the weft in the design drawing shown in FIG. is.

In the following description, "warp" is a thread that extends along the paper transport direction when a multi-layer fabric for papermaking is used as a looped belt, and "weft" is a thread that It is a thread that extends in the crossing direction. In addition, when a multi-layered fabric is used as a papermaking net, the "upper side fabric" is the fabric located on the surface side of the papermaking net on which the paper is conveyed, and the "lower side fabric" is the papermaking net. It is a woven fabric positioned mainly on the back side of the belt, which is in contact with the driving rollers. The term “surface” simply refers to the exposed surface of the upper side fabric or the lower side fabric, and the “surface” of the upper side fabric corresponds to the surface side of the papermaking net. The "front side" of corresponds to the back side of the papermaking net.

A "design drawing" is the smallest repeating unit of a fabric design and corresponds to the complete design of the fabric. In other words, the "complete texture" is repeated in the front, back, left and right to form the "fabric". Further, the term "knuckle" refers to a portion where a warp passes over or under one or more wefts and is exposed to the surface.

In addition, the "binding yarn" is at least a part of the warp yarns constituting the upper side fabric and the lower side fabric, and originally only the weft of the lower side fabric (or the upper side fabric) should be woven. is a thread that connects the upper side fabric and the lower side fabric by weaving the weft of the upper side fabric (or the lower side fabric) from the lower side (or the upper side).

[First embodiment]
FIG. 1 is a design diagram showing the complete design of the industrial fabric 10 according to the first embodiment. FIG. 2 is a cross-sectional view in the warp direction along the warp in the design drawing shown in FIG.

In design drawings, the warp threads are indicated by Arabic numerals such as 1, 2, 3, and so on. The weft threads are indicated by dashed Arabic numerals, eg 1′, 2′, 3′ . . . Upper side threads are indicated by numbers with U, and lower side threads are indicated by numbers with L, such as 1'U and 2'L. The binding yarns for binding the upper side fabric and the lower side fabric are indicated by numbers with B attached. For example, the binding yarn for the upper side warp is indicated by UB, and the binding yarn for the lower side warp is indicated by LB.

In the design drawings, the x mark indicates that the upper surface side warp is arranged above the upper surface side weft, and the ○ mark indicates that the lower surface side warp is arranged below the lower surface side weft, The △ mark indicates that the binding yarn of the top side warp is arranged below the bottom side weft, and the ▲ mark indicates that the binding yarn of the bottom side warp is arranged above the top side weft. showing. X, ○, Δ and ▲ marks indicate knuckles. These notations are also used in FIG. 3 and subsequent figures.

The industrial fabric 10 according to the first embodiment shown in FIG. The warp threads (1L to 8LB) and the lower side fabric including the lower side weft threads (1'L to 16'L) are knotted together.

There are eight upper surface side warps (1U to 8UB) and lower surface side warps (1L to 8LB) in the complete weave, and the upper surface side wefts (1′U to 16′U) and lower surface side wefts (1′L to 16 'L) is 16 in the complete tissue.

Two of each of the eight upper surface side warps (1U to 8UB) and lower surface side warps (1L to 8LB) in the complete weave are upper surface side binding yarns (4UB, 8UB) and lower side binding yarns (4LB, 8LB). The upper surface side fabric and the lower surface side fabric are bound by upper surface side binding yarns that are part of the plurality of upper surface side warps and lower surface side binding yarns that are part of the plurality of lower surface side warps. By knotting the warp yarns under tension on the paper machine, it is possible to suppress internal abrasion caused by rubbing between the upper side fabric and the lower side fabric even in a high-speed papermaking machine.

Next, how to weave each warp and each weft in the industrial fabric 10 will be described with reference to FIGS. 2(a) and 2(b). The arrangement of the upper surface side wefts and the lower surface side wefts shown in FIGS. 2(a) and 2(b) is the same.

FIG. 2(a) shows a configuration in which a set of upper surface side warp yarns 3U and lower surface side warp yarns 3L are woven into upper surface side weft yarns and lower surface side weft yarns. As shown in FIG. 2(a), the upper surface side warp 3U includes one upper surface side weft (2′U, 4′U, 6′U, 8′U, 10′U, 12′U, 14′U, 16'U) and the lower side of one top side weft (1'U, 3'U, 5'U, 7'U, 9'U, 11'U, 13'U, 15'U) The first weave pattern is repeatedly formed to alternately pass through and form a so-called plain weave weave pattern.

The upper surface side warps (1U, 2U, 5U to 7U) include those whose weaving position is shifted in the warp direction from the upper surface side warp 3U. 16′U) alternately one by one to form a first weaving pattern.

The bottom side warp 3L passes under one bottom side weft (3'L, 7'L, 11'L, 15'L) and three continuous bottom side wefts (4'L to 6' L, 8'L-10'L, 12'L-14'L, 16'L and 1'L-2'L), forming a second weave pattern of 1/3 weave through the upper side. The lower surface side warps (1L, 2L, 5L to 7L) have a second weaving pattern similar to the lower surface side warp 3L, although the weaving position is shifted in the warp direction from the lower surface side warp 3L, and 1/ A second weave pattern of 3 weaves is formed.

FIG. 2(b) shows a configuration in which a pair of upper surface side warp yarns 4UB and lower surface side binding yarns 4LB are woven into upper surface side weft yarns and lower surface side weft yarns. The upper surface side warp yarns 4UB and the lower surface side binding yarns 4LB form a set facing each other vertically and cross each other for binding.

The upper surface side binding yarn 4UB passes over the upper surface side wefts (1′U, 7′U, 9′U, 11′U, 13′U, 15′U) to form six knuckles, and the remaining It passes under the top side wefts (2′U to 6′U, 8′U, 10′U, 12′U, 14′U, 16′U). In addition, the upper side binding yarn 4UB passes under the lower side weft 4'L to form one knuckle, and the lower side wefts (1'L to 3'L) other than the lower side weft (4'L) , 5′L to 16′L). The upper surface side binding yarn 8UB has the same weaving pattern as the upper surface side binding yarn 4UB, although the weaving position is shifted in the warp direction compared to the upper surface side binding yarn 4UB.

The lower side binding yarn 4LB passes above the upper side wefts (3′U, 5′U) to form two knuckles, and the remaining upper side wefts (1′U to 2′U, 4′U, 6′U to 16′U). In addition, the lower side binding yarn 4LB passes under the lower side wefts (8'L, 12'L, 16'L) to form three knuckles, and the remaining lower side wefts (1'L to 7 'L, 9'L to 11'L, 13'L to 15'L). The lower surface side binding yarn 8LB has a weaving pattern similar to that of the lower surface side binding yarn 4LB, although the weaving position is shifted in the warp direction compared to the lower surface side binding yarn 4LB.

The upper surface side binding yarn 4UB passes above one upper surface side weft 1′U, passes below five continuous upper surface side wefts (2′U to 6′U), and passes through the upper surface side weft (7 'U to 16'U) are alternately woven up and down to form a first weave pattern. The lower surface side binding yarn 4LB passes above the upper surface side weft 3′U while the upper surface side binding yarn 4UB passes under the five continuous upper surface side wefts (2′U to 6′U). , passing under the upper surface side weft 4′U, passing over the upper surface side weft 5′U, and under the other upper surface side wefts (1′U to 2′U, 6′U to 16′U) pass through As a result, the upper surface side binding yarn 4UB and the lower surface side binding yarn 4LB mutually complement the surface texture of the upper surface side fabric. A first weave pattern is formed that weaves up and down book by book. The upper side binding yarn 8UB and the lower side binding yarn 8LB also mutually complement the surface texture of the upper side fabric in the same way as the upper side binding yarn 4UB and the lower side binding yarn 4LB, and the upper side side wefts are arranged one above the other. forming a first weave pattern that weaves into the This first weave pattern is called plain weave. As a result, the first weaving pattern is formed on the surface of the upper side fabric by the warps (the upper side warps and the lower side binding yarns) located on the upper side, and the surface properties can be improved. Plain weave on the surface of the fabric on the upper side provides good smoothness and supportability for paper fibers, so that the number of places where paper fibers are stuck can be reduced.

The upper surface side binding yarn 4UB passes under one lower surface side weft 4'L and passes over the remaining lower surface side wefts (1'L to 3'L, 5'L to 16'L). While forming a pattern, the lower side binding yarn 4LB passes under one lower side weft 8'L separated by three from the lower side weft 4'L, and three continuous lower side wefts (9 'L to 11'L), through the lower side of one lower side weft 12'L, through the upper side of three continuous lower side wefts (13'L to 15'L), 1 Repeating the weaving pattern passing under the lower side weft 16'L of this lower side weft and passing over the upper side of the continuous 7 lower side wefts (1'L to 7'L), 1/3 on the surface of the lower side fabric A second weave pattern of tissue is formed.

In this way, the upper binding yarn 4UB and the lower binding yarn 4LB complement each other on the surface of the lower side fabric, thereby forming a second weaving pattern of a ⅓ weave and collapsing the lower side weave. woven without The upper side binding yarn 8UB and the lower side binding yarn 8LB also mutually complement the surface texture of the lower side fabric in the same manner as the upper side binding yarn 4UB and the lower side binding yarn 4LB, and the second weaving of the 1/3 weave is performed. form a pattern. As a result, the second weaving pattern is repeatedly formed on the surface of the lower side fabric by the warp yarns located on the lower side (lower side warps and upper side binding yarns). As a result, compared to plain weaving, it is possible to increase the number of lower surface side wefts exposed on the surface of the lower surface side fabric and improve wear resistance.

Knuckles (marked with circles and triangles in FIG. 1) formed on the surface of the lower side fabric by the lower side warps passing under the lower side wefts are evenly arranged in an oblique direction. In other words, the knuckles formed on the surface of the lower side fabric are aligned in the diagonal direction and do not include knuckles deviated from the diagonal direction. This weaving pattern is called twill weave. This can improve the smoothness of the surface of the lower fabric. The ⅓ design of the lower surface side fabric can suppress bending of the lower surface side weft, and the net thickness of the industrial fabric 10 can be reduced. By reducing the net thickness of the industrial fabric 10, the amount of water retained inside the net is reduced, and splashing of the water retained inside the net around the machine due to high-speed rotation of the net can be suppressed, thereby suppressing contamination of the machine.

The upper side binding yarns (4UB, 8UB) and the lower side binding yarns (4LB, 8LB) form a set vertically, forming a first weaving pattern on the surface of the upper side fabric, and forming a second weave pattern on the surface of the lower side fabric. 2 Form a weave pattern. As a result, even if the upper surface side binding yarns (4UB, 8UB) and the lower surface side binding yarns (4LB, 8LB) are provided, the weaving patterns formed on the surfaces of the upper surface side fabric and the lower surface side fabric can be made uniform, Surface properties can be improved.

A plurality of sets of upper side binding yarns (4UB, 8UB) and lower side binding yarns (4LB, 8LB) are three sets of upper side warps (1U to 3U, 5U to 7U) and lower side warps that are not binding yarns (1L to 3L, 5L to 7L) are arranged at equal intervals. As a result, the sets of upper side binding yarns (4UB, 8UB) and lower side binding yarns (4LB, 8LB) are evenly spaced apart from each other, and bias in the binding position in the weft direction can be suppressed.

The position of the knuckle formed by each of the two lower side binding yarns (4LB, 8LB) in the complete weave passing above the upper side wefts (3'U, 5'U, 11'U, 13'U) is , there is a deviation of 4 top side warps in the weft direction and a deviation of 8 top side wefts in the warp direction. The position of the upper surface side wefts (3′U, 5′U) where the lower surface side binding yarn 4LB forms the knuckle and the upper surface side wefts (11′U, 13′U) where the lower surface side binding yarn 8LB forms the knuckle is offset by 8 top side wefts in the warp direction. This allows the splicing positions to be dispersed. By dispersing the bonding positions, dehydration inhibition due to bonding can be suppressed and air permeability can be improved.

The number of upper side warps (1U to 8UB) and lower side warps (1L to 8LB) are the same in the complete weave, and the upper side wefts (1'U to 16'U) and lower side wefts (1'L) are the same in the complete weave. to 16'L) are the same. This facilitates the construction of the industrial fabric 10 on-stack. Now, referring to FIG. 3 again, the on-stack structure will be described.

FIG. 3(a) is a partial sectional view in the weft direction along the weft in the design drawing shown in FIG. 1, and FIG. indicates

The upper surface side warp 3U and the lower surface side warp 3L that form a set vertically have an on-stack structure in which they overlap in the perpendicular direction F when viewed in the perpendicular direction F of the upper surface side fabric. Moreover, the upper surface side warp yarns 4UB and the lower surface side warp yarns 4LB have an on-stack structure in which they overlap in the direction F perpendicular to the plane. In this way, the state in which the upper surface side warp and the lower surface side warp that form a pair of upper and lower layers are overlapped in the perpendicular direction F in many parts is called an on-stack structure. The perpendicular direction F refers to a direction perpendicular to the surface of the upper side fabric, and extends along the vertical direction.

The diameter D1 of the upper surface side warp 3U and the diameter D2 of the lower surface side warp 3L overlap by a distance D3 when viewed in the perpendicular direction F. Based on the ratio at which the distance D3 overlaps the diameter D1 or the ratio at which the distance D3 overlaps the diameter D2, the ratio at which the upper surface side warp yarns 3U and the lower surface side warp yarns 3L overlap in the perpendicular direction F is calculated. . It should be noted that the upper surface side warp yarns 4UB and the lower surface side warp yarns 4LB partially overlap at a rate of 100% when viewed in the direction F perpendicular to the plane.

FIG. 3(b) shows a region S3 where the upper surface side warp yarns 3U and the lower surface side warp yarns 3L overlap when viewed in the perpendicular direction F. As shown in FIG. If this region S3 is 60% or more of the area S1 of the upper surface side warp yarns 3U or 60% or more of the area S2 of the lower surface side warp yarns 3L, the upper surface side warp yarns 3U and the lower surface side warp yarns 3L overlap at a rate of 60% or more. there is The longitudinal lengths of area S1, area S2 and region S3 may be, for example, the length of a complete tissue. When the area S1 of the upper surface side warp and the area S2 of the lower surface side warp are different, that is, when the wire diameters of the upper surface side warp and the lower surface side warp are different, the overlapping ratio of the upper surface side warp and the lower surface side warp is the warp with a small wire diameter. may be calculated by comparing the area of and the area S3.

It is preferable that each of the upper surface side warps (1U to 8UB) and the lower surface side warps (1L to 8LB) that are vertically set overlap each other at a rate of 60% or more when viewed in the perpendicular direction F. In addition, each of the upper surface side wefts (1′U to 16′U) and the lower surface side wefts (1′L to 16′L) forming a set vertically is 60% or more when viewed in the perpendicular direction of the upper surface side fabric. It is preferable that they overlap at a ratio of Thereby, the dewatering property of the industrial textile 10 can be improved.

More preferably, each of the upper surface side warps (1U to 8UB) and the lower surface side warps (1L to 8LB) that form a set vertically overlaps at a rate of 80% or more when viewed in the perpendicular direction F, and the set is vertically set. Each of the upper side wefts (1'U to 16'U) and the lower side wefts (1'L to 16'L) overlap at a rate of 80% or more when viewed in the perpendicular direction F of the upper side fabric. there is Thereby, the dewatering property of the industrial fabric 10 can be further enhanced. Such an on-stack structure can be achieved by equalizing the number of upper surface side warps and lower surface side warps, and by equalizing the number of upper surface side wefts and lower surface side wefts.

In this way, the surface of the fabric on the upper side is plain weave, the surface of the fabric on the lower side is twill weave, and the on-stack structure is provided, so that the industrial fabric 10 has good smoothness, a thin net thickness, and high dewaterability. can be realized.

Return to FIG. The ratio of the number of upper side binding yarns (4UB, 8UB) to the upper side warps (1U to 3U, 5U to 7U) that are not binding yarns, and the lower side binding to the lower side warps (1L to 3L, 5L to 7L) The ratio of the number of threads (4LB, 8LB) is 3:1. Dehydration can be improved by reducing the number of binding yarns.

The lower side binding yarns (4LB, 8LB) have two or more knuckles (marked ▴ in FIG. 1) formed through the upper side of one upper side weft. For example, the lower binding yarn 4LB forms two knuckles by passing over the upper side weft 3'U and the upper side of the upper side weft 5'U. This makes it possible to increase the knotting strength while suppressing the number of knotting yarns.

The number of knuckles formed on the lower side weft by the upper side binding yarns (4UB, 8UB) is one, but the number of knuckles formed by the lower side binding yarns (4LB, 8LB) on the upper side wefts is There are two. That is, the number of knuckles formed in the lower side wefts by the upper side binding yarns (4UB, 8UB) is smaller than the number of knuckles formed in the upper side wefts by the lower side binding yarns (4LB, 8LB). As a result, by changing the weaving pattern of the upper surface side binding yarns (4UB, 8UB) and the lower surface side binding yarns (4LB, 8LB), bias in the binding position can be suppressed. It is possible to prevent the upper binding yarns (4UB, 8UB) from being exposed on the surface of the lower woven fabric, thereby reducing the possibility of damage due to abrasion. The position of the knuckle formed on the lower side weft by the upper side binding yarn (4UB, 8UB) is between two knuckles formed by the lower side binding yarn (4LB, 8LB) on the upper side weft in the warp direction. do.

The surface of the lower side fabric may be formed by a mixed weave of polyester lower side wefts and polyamide lower side wefts. That is, the 16 lower surface side wefts (1'L to 16'L) in the complete weave include a wire made of polyester and a wire made of polyamide. Thereby, the wear resistance can be improved while increasing the strength of the lower side fabric.

The surface of the upper surface side fabric may be formed by a mixed weave of polyester upper surface side wefts and polyamide upper surface side wefts. That is, the 16 upper surface side wefts (1'U to 16'U) in the complete weave include a wire made of polyester and a wire made of polyamide. As a result, abrasion resistance can be improved while increasing the strength of the upper surface side woven fabric.

The industrial fabric according to each embodiment described above may be subjected to the following processing. For example, in order to improve the smoothness of the surface, the surface side of the industrial fabric may be polished in the range of 0.02 to 0.05 mm. In particular, the surface side is preferably ground by 0.02 mm or 0.03 mm.

In addition, in order to suppress the fraying of threads at the ends of the net (industrial fabric), the range of 5 mm to 30 mm (especially the range of 5 mm, 10 mm, and 20 mm) from the end of the net is coated with a polyurethane resin. , may be reinforced. The net ends may be coated on one or both sides. The resin may be a hot melt polyurethane.

In order to improve the wear resistance of the net end, the range 20 mm to 500 mm away from the net end (especially the range 25, 50, 75, 100, 150, 250, 300, 350, 400 mm away) is The entire length may be coated with 3 to 16 strips (especially 3, 4, 7, 8, 10, 12, 15, 16 strips) of about 7 mm strips of resin. The plurality of polyurethane resins described above may be applied to both ends of the net, or may be applied to only one side. The resin may be a hot melt polyurethane.

Moreover, in order to improve the antifouling property, the entire mesh may be coated with a resin. In addition, a range 10 mm to 500 mm away from the net end (especially 10, 15, 20, 25, 30, 40, 50, 75, 100, 150, 200 , 250, 300, 350, 400 mm) may be coated over the entire length with a strip of resin having a width of about 3, 5, 7, 10, 15, 20 mm. The aforementioned resin may be applied to both ends of the net, or may be applied to only one side. The resin may be polyurethane and may be hot melt. In addition, a line with a width of about 25 mm or 50 mm may be drawn on the net over the entire width so that bending of the net can be detected during use.

A range of preferred elements for industrial textiles is listed. The wire diameter of the warp (the warp includes the upper surface side warp, the lower surface side warp, the first binding warp, the second binding warp and the third binding warp) is preferably 0.10 to 1.0 mm, and 0.1 to 1.0 mm. 1 to 0.5 mm is more preferable, and 0.11 to 0.35 mm is particularly preferable. The wire diameter of the lower surface side warp may be the same as the wire diameter of the upper surface side warp, and may be set to be 1.1 to 1.2 times as large as the wire diameter of the upper surface side warp. Also, the wire diameter of the weft is preferably 0.10 to 1.0 mm, more preferably 0.12 to 0.6 mm, and particularly preferably 0.12 to 0.55 mm. The wire diameter of the lower side weft is preferably larger than the wire diameter of the upper side weft, and may be 1.1 to 3.0 times as large as the wire diameter of the upper side weft. It may be 2 to 2.0 times as large.

The upper surface side weft may be composed of only PET wire, only polyamide wire, or alternately woven PET wire and polyamide wire. The lower surface side wefts may be only PET wires, only polyamide wires, or PET wires and polyamide wires alternately woven. Also, in order to reduce the driving load of the machine, a low-friction yarn may be woven into the lower side weft yarn.

Air permeability is preferably 100 cm3/cm2/s to 600 cm3/cm2/s, more preferably 120 cm3/cm2/s to 300 cm3/cm2/s.

The net thickness is preferably 0.3 mm to 3.0 mm, more preferably 0.5 mm to 2.5 mm, particularly preferably 0.5 mm to 1.0 mm. It is mainly used as a papermaking or nonwoven fabric belt, and may be used particularly as a papermaking dewatering belt or a spunbond nonwoven fabric conveying belt.

The cross-sectional shape of the warp and weft according to each of the above-described embodiments is not limited to a circular shape, and it is possible to use a square-shaped or star-shaped thread, an oval-shaped thread, a hollow thread, a core-sheath-structured thread, or the like. In particular, by making the cross-sectional shape of the lower warp thread square, rectangular, or elliptical, the cross-sectional area of the thread is increased, and the elongation resistance and rigidity can be improved.

In addition, the material of the thread can be freely selected within the range that satisfies the desired characteristics. Ethylene, cotton, wool, metal, thermoplastic polyurethane, thermoplastic elastomer, etc. can be used. Needless to say, copolymers or yarns made by blending or containing various substances in accordance with the purpose may be used. In general, it is preferable to use a polyester monofilament, which has rigidity and is excellent in dimensional stability, as yarns constituting industrial fabrics.

1'L bottom side weft, 1'U top side weft, 1L bottom side warp, 1U top side warp, 4UB bottom side binding yarn, 4UB top side binding yarn, 10 industrial fabric.

Claims (13)

a top-side fabric composed of top-side warps and top-side wefts;
a lower surface side fabric that is bound to the upper surface side fabric and consists of lower surface side warp yarns and lower surface side weft yarns;
The upper side fabric and the lower side fabric are the upper side binding yarns that are part of the upper side warps of the plurality of upper side warps and the lower side that are the lower side warps of some of the plurality of lower side warps. Knotted by the side knotting thread,
A first weaving pattern is formed on the surface of the upper surface side fabric by alternately passing above one upper surface side weft and below one upper surface side weft by warps positioned on the upper surface side,
The knuckles formed on the surface of the lower side fabric by the warp yarns positioned on the lower side passing under the lower side wefts are uniformly arranged in an oblique direction,
On the surface of the lower surface side fabric, a second weaving pattern is repeatedly formed by the warp located on the lower surface side, passing under one of the lower surface side wefts and passing over three continuous lower surface side wefts. is,
The upper surface side warp and the lower surface side warp have the same number,
An industrial fabric, wherein the number of upper side wefts and the number of lower side wefts are the same. The top side binding yarn and the bottom side binding yarn form a set vertically, forming a first weaving pattern on the surface of the top side fabric and forming a second weaving pattern on the surface of the bottom side fabric. The industrial fabric according to Claim 1, characterized in that: 3. The industrial fabric according to claim 1, wherein the lower side binding yarn has two or more knuckles formed through the upper side of one of the upper side wefts. 3. The industrial fabric according to claim 1, wherein the lower side binding yarn has two knuckles formed by passing over one of the upper side wefts. The upper surface side warp and the lower surface side warp that form a set vertically have an on-stack structure in which they overlap in the direction perpendicular to the surface of the upper surface side fabric,
5. The method according to any one of claims 1 to 4, characterized in that the upper surface side weft and the lower surface side weft that form a set vertically have an on-stack structure in which they overlap in the direction perpendicular to the surface of the upper surface side fabric. Industrial fabric according to any one of the above. The upper surface side warp and the lower surface side warp that form a set vertically overlap at a rate of 60% or more when viewed in the direction perpendicular to the surface of the upper surface side fabric,
6. The upper and lower side wefts and the lower side wefts that are paired vertically overlap each other at a rate of 60% or more when viewed in the direction perpendicular to the surface of the upper side fabric. Industrial fabric according to. The upper surface side warp and the lower surface side warp that form a set vertically overlap at a rate of 80% or more when viewed in the direction perpendicular to the surface of the upper surface side fabric,
6. The upper and lower side wefts and the lower side wefts that are vertically paired overlap each other at a rate of 80% or more when viewed in the direction perpendicular to the surface of the upper side fabric. Industrial fabric according to. The ratio of the number of the upper surface side binding yarns to the upper surface side warps that are not binding yarns and the ratio of the number of the lower surface side binding yarns to the lower surface side warps that are not binding yarns is 3:1. The industrial fabric according to any one of claims 2 to 4. 9. The industrial fabric according to any one of claims 1 to 8, wherein the number of the upper surface side warp and the number of the lower surface side warp are eight in a complete weave. The upper surface side warp is eight in a complete weave,
The upper surface side wefts are 16 in a complete weave,
The positions of the knuckles formed by each of the two lower surface side binding yarns in the complete weave passing above the upper surface side wefts are such that there is a displacement of the four upper surface side warps in the weft direction and 8 in the warp direction. 10. Industrial fabric according to any one of the preceding claims, characterized in that there is a deviation of the top side wefts of the book. 11. The industrial fabric according to any one of claims 1 to 10, wherein the surface of said lower side fabric is formed by interweaving said lower side weft yarns of polyester and said lower side weft yarns of polyamide. 12. The industrial fabric according to any one of claims 1 to 11, wherein the surface of the upper side fabric is formed by a mixed weave of the upper side weft of polyester and the upper side weft of polyamide. 13. The method according to any one of claims 1 to 12, wherein the number of knuckles formed on the lower side weft by the upper side binding yarn is smaller than the number of knuckles formed on the upper side weft by the lower side binding yarn. Industrial fabric according to any one of the above.

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