industrial fabric

Abstract

The upper side warp yarns each have the same weave pattern as when the binder weft yarns are removed. The binder warp yarns constitute at least one of the two warp yarns arranged above and below each other. The group of binder warp yarns and the warp yarns arranged above and below the binder warp yarns complement each other to form a weave pattern corresponding to that formed by one upper side warp yarn and a weave pattern corresponding to that formed by one lower side warp yarn, respectively. The upper side warp yarns and the binder warp yarns are woven with the upper side weft yarns to form an upper side fabric formed with a prescribed weave pattern for each warp yarn column. The lower side warp yarns and the binder warp yarns are woven with the lower side weft yarns to form a lower side fabric formed with a prescribed weave pattern for each warp yarn column. The binder weft yarns form yarn nodes on the upper side of two or fewer consecutive upper side warp yarns and are not adjacent in the warp direction.

Description

TECHNICAL FIELD

[0001] The present application relates to an industrial fabric for a papermaking machine. BACKGROUND

[0002] Conventionally, as an industrial fabric for a papermaking machine, a papermaking wire woven by warp yarns and weft yarns has been widely used. The papermaking wire requires various properties, and for example, Patent Document 1 discloses an industrial fabric composed of an upper face side fabric, a lower face side fabric, an upper face side warp yarn, and a lower face side warp yarn, the upper face side fabric composed of an upper face side warp yarn and an upper face side weft yarn, the lower face side fabric composed of a lower face side warp yarn and a lower face side weft yarn, the upper face side warp yarn functioning as a binder yarn, and the lower face side warp yarn functioning as a binder yarn. The upper face side warp yarn functioning as a binder yarn and the lower face side warp yarn functioning as a binder yarn are arranged in groups in an upper and lower relationship.

[0003] (PRIOR ART DOCUMENTS)

[0004] (PATENT DOCUMENTS)

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2003-342889 SUMMARY

[0006] (PROBLEMS TO BE SOLVED BY THE INVENTION)

[0007] The binding force of the upper face side fabric and the lower face side fabric can be increased by increasing the binder yarns, but in the case where only the binder yarns of the warp yarns are increased, a decrease in the surface property and the air permeability can be caused.

[0008] An object of the present application is to provide an industrial fabric which can suppress a decrease in the surface property and the air permeability while ensuring the binding force.

[0009] (MEANS FOR SOLVING THE PROBLEMS)

[0010] To solve the above problems, a certain embodiment of the present application is an industrial fabric in which an upper fabric and a lower fabric are joined, wherein the upper fabric and the lower fabric are woven by using warp yarns and weft yarns. The weft yarns include: a joining weft yarn for joining the upper fabric and the lower fabric; an upper weft yarn for constituting a part of the upper fabric; and a lower weft yarn for constituting a part of the lower fabric. The warp yarns include: a joining warp yarn for joining the upper fabric and the lower fabric; an upper warp yarn which is not woven into the lower weft yarn but is woven into the upper weft yarn to constitute a part of the upper fabric; and a lower warp yarn which is not woven into the upper weft yarn but is woven into the lower weft yarn to constitute a part of the lower fabric. The upper warp yarns which are arranged in a group above and below the lower warp yarns each have the same weave pattern when the joining weft yarn is removed. The joining warp yarn constitutes at least one of the two warp yarns arranged above and below. The group of the joining warp yarn and the warp yarn arranged above and below the joining warp yarn complement each other to form a weave pattern corresponding to the weave pattern formed by one upper warp yarn and a weave pattern corresponding to the weave pattern formed by one lower warp yarn, respectively. The upper warp yarns and the joining warp yarn are woven into the upper weft yarn to constitute the upper fabric formed in a predetermined weave pattern for each warp yarn column. The lower warp yarns and the joining warp yarn are woven into the lower weft yarn to constitute the lower fabric formed in a predetermined weave pattern for each warp yarn column. The joining weft yarn forms a yarn node passing through the upper side of two or less upper warp yarns in succession and is not adjacent in the warp direction.

[0011] Other aspects of the present application are industrial fabrics in which the upper side fabric and the lower side fabric are joined. In the industrial fabric, the upper side fabric and the lower side fabric are woven from warp yarns and weft yarns. The weft yarns include: a joining weft yarn for joining the upper side fabric and the lower side fabric; an upper side weft yarn for constituting a part of the upper side fabric; and a lower side weft yarn for constituting a part of the lower side fabric. The warp yarns include: a joining warp yarn for joining the upper side fabric and the lower side fabric; an upper side warp yarn which is not woven into the lower side weft yarn but is woven into the upper side weft yarn to constitute a part of the upper side fabric; and a lower side warp yarn which is not woven into the upper side weft yarn but is woven into the lower side weft yarn to constitute a part of the lower side fabric. The joining warp yarn constitutes at least one of the two warp yarns which are arranged in an upper and lower relationship. The group of the joining warp yarn and the warp yarn which is arranged in an upper and lower relationship with the joining warp yarn complement each other to form a weave pattern equivalent to that formed by one upper side warp yarn and a weave pattern equivalent to that formed by one lower side warp yarn, respectively. The upper side warp yarn and the joining warp yarn are woven into the upper side weft yarn and the joining weft yarn to constitute the upper side fabric which is formed in a prescribed weave pattern for each warp yarn column. The lower side warp yarn and the joining warp yarn are woven into the lower side weft yarn to constitute the lower side fabric which is formed in a prescribed weave pattern for each warp yarn column. The joining weft yarn has a first joining weft yarn and a second joining weft yarn which are arranged in an adjacent relationship in a group. The group of the adjacent first joining weft yarn and second joining weft yarn complement each other to form a weave pattern equivalent to that formed by one upper side weft yarn on the surface of the upper side fabric. The first joining weft yarn and the second joining weft yarn form yarn nodes which pass over the upper sides of two or less consecutive upper side warp yarns, respectively.

[0012] (EFFECTS OF THE INVENTION)

[0013] According to the present application, it is possible to provide an industrial fabric which ensures joining strength while suppressing a decrease in surface properties and air permeability. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a design drawing showing the complete weave of the industrial fabric of the first embodiment.

[0015] Figure 2 is a design drawing showing the complete weave of the industrial fabric of the first embodiment. Figure 1 is a cross-sectional view taken along the warp direction of the warp yarns in the design drawing shown in FIG. 1.

[0016] Figure 3 is a cross-sectional view taken along the weft direction of the weft yarns in the design drawing shown in FIG. 1. Figure 1

[0017] Figure 4 is a design drawing showing the complete weave of the industrial fabric of the second embodiment.

[0018] Figure 5 is a design drawing showing the complete weave of the industrial fabric of the second embodiment. Figure 4 ​Cross-sectional view of the warp direction of the warp yarns in the design shown.

[0019] Figure 6 To show the complete weave of the industrial fabric of the first embodiment. Figure 4 Cross-sectional view of the weft direction of the weft yarns in the design shown.

[0020] Figure 7 Design to show the complete weave of the industrial fabric of the third embodiment.

[0021] Figure 8 Design to show the complete weave of the industrial fabric of the fourth embodiment.

[0022] Figure 9 Design to show the complete weave of the industrial fabric of the fifth embodiment.

[0023] Figure 10 To show the complete weave of the industrial fabric of the first embodiment. Figure 9 Cross-sectional view of the warp direction of the warp yarns in the design shown.

[0024] Figure 11 To show the complete weave of the industrial fabric of the first embodiment. Figure 9 Cross-sectional view of the weft direction of the weft yarns in the design shown.

[0025] Figure 12 Design to show the complete weave of the industrial fabric of the sixth embodiment.

[0026] Figure 13 To show the complete weave of the industrial fabric of the first embodiment. Figure 12 Cross-sectional view of the warp direction of the warp yarns in the design shown.

[0027] Figure 14 To show the complete weave of the industrial fabric of the first embodiment. Figure 12 Cross-sectional view of the weft direction of the weft yarns in the design shown.

[0028] Figure 15 Design to show the complete weave of the industrial fabric of the seventh embodiment.

[0029] Figure 16 To show the complete weave of the industrial fabric of the first embodiment. Figure 15 Cross-sectional view of the warp direction of the warp yarns in the design shown.

[0030] Figure 17 To show the complete weave of the industrial fabric of the first embodiment. Figure 15 Cross-sectional view of the weft direction of the weft yarns in the design shown.

[0031] Figure 18 Design to show the complete weave of the industrial fabric of the eighth embodiment. DETAILED DESCRIPTION

[0032] In the following description, "warp yarns" refer to yarns extending in the conveyance direction of the wire in the case where the multi-layered fabric for papermaking is used as a loop-shaped conveyer, and "weft yarns" refer to yarns extending in a direction intersecting the warp yarns. Further, "upper-side fabric" refers to a fabric on the surface side for conveying the wire in the case where the multi-layered fabric is used as a papermaking wire, and "lower-side fabric" refers to a fabric on the back side mainly abutting against a driving roller in the case where the multi-layered fabric is used as a papermaking conveyer. Further, "surface" alone refers to a side on which the upper-side fabric and the lower-side fabric are exposed, and the "surface" of the upper-side fabric corresponds to the surface side of the papermaking wire, and the "surface" of the lower-side fabric corresponds to the back side of the papermaking wire.

[0033] Further, "design" is the smallest repeating unit of the fabric organization and corresponds to the complete organization of the fabric. That is, the "complete organization" is repeated in the front, back, left, and right to form the "fabric". Further, "knuckle" refers to a portion where the warp yarn is exposed to the surface above or below one or a plurality of weft yarns.

[0034] Further, "binding warp yarns" are at least some of the warp yarns constituting the upper-side fabric and the lower-side fabric, and are yarns that bind the upper-side fabric and the lower-side fabric by weaving weft yarns that should have been woven only in the upper-side fabric (or the lower-side fabric) from the back side (or the surface side) in the lower-side fabric (or the upper-side fabric). Further, "binding weft yarns" are at least some of the weft yarns constituting the upper-side fabric and the lower-side fabric, and are weft yarns that bind the upper-side fabric and the lower-side fabric by weaving warp yarns that should have been woven only in the upper-side fabric (or the lower-side fabric) from the back side (or the surface side) in the lower-side fabric (or the upper-side fabric).

[0035] [First Embodiment]

[0036] Figure 1 A design showing the complete organization of the industrial fabric 10 of the first embodiment. Figure 2 A cross-sectional view along the warp direction of the warp yarns in the design shown in Fig. 1. Figure 1 A cross-sectional view along the weft direction of the weft yarns in the design shown in Fig. 1. Figure 3 A cross-sectional view along the warp direction of the warp yarns in the design shown in Fig. 1. Figure 1 A cross-sectional view along the weft direction of the weft yarns in the design shown in Fig. 1.

[0037] In the design drawings, warp yarns are represented by Arabic numerals, such as 1, 2, 3... Weft yarns are represented by Arabic numerals with apostrophes, such as 1', 2', 3'... Top side yarns are represented by numbers with the letter U, and bottom side yarns by numbers with the letter L, such as 1'U, 2'L, etc. Furthermore, numbers with the letter B are used to represent the warp yarns that join the top and bottom side fabrics; the first joining warp yarn is denoted as Bf, and the second joining warp yarn as Bs. Similarly, numbers with the letter B are used to represent the weft yarns that join the top and bottom side fabrics; the first joining weft yarn is denoted as Bf, and the second joining weft yarn as Bs.

[0038] Furthermore, in the design drawing, the △ mark indicates that the first joining warp yarn is positioned below the lower side weft yarn; the ▲ mark indicates that the second joining warp yarn is positioned above the upper side weft yarn; the × mark indicates that the upper side warp yarn and the first joining warp yarn are positioned above the upper side weft yarn; the ○ mark indicates that the lower side warp yarn and the second joining warp yarn are positioned below the lower side weft yarn; the □ mark indicates that the joining weft yarn is positioned below the lower side warp yarn or below the joining warp yarn; and the ■ mark indicates that the joining weft yarn is positioned above the upper side warp yarn or above the joining warp yarn. The △, ▲, ×, ○, □, and ■ marks represent yarn knots. Figure 4 These symbols were used thereafter as well.

[0039] Figure 1 The industrial fabric 10 of the first embodiment shown is formed by joining an upper-side fabric containing upper-side warp yarns (1U to 8U) and upper-side weft yarns (1'U to 4'U, 6'U to 9'U) with lower-side fabric containing lower-side warp yarns (1L to 3L, 5L to 7L) and lower-side weft yarns (1'L, 3'L, 6'L, 8'L) by joining warp yarns (4B, 8B) and weft yarns (5'B, 10'B).

[0040] The top weft yarns (1'U~4'U, 6'U~9'U) constitute part of the top fabric. The bottom weft yarns (1'L, 3'L, 6'L, 8'L) constitute part of the bottom fabric. The connecting warp yarns (4B, 8B) connect the top and bottom fabrics, thus constituting part of the top and bottom fabrics respectively. The connecting weft yarns (5'B, 10'B), although connecting the top and bottom fabrics, are not included in the weaving pattern of the top and connecting warp yarns.

[0041] Next, refer to Figure 2 (a) and (b) in the middle and Figure 3 Sections (a) and (b) describe the weaving methods of each warp and weft yarn in the industrial fabric 10. Figure 2 The configurations of the top weft yarn, bottom weft yarn, and knotting weft yarn shown in (a) and (b) are the same.

[0042] Figure 2 (a) of FIG. 1 shows the manner in which the upper side warp yarns 1U and the lower side warp yarns 1L are woven into the upper side weft yarns, the lower side weft yarns, and the binder weft yarns. As shown in (a) of FIG. 1, the upper side warp yarns 1U are woven one by one into the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U) and form yarn loops on the upper side of the upper side weft yarns (2'U, 4'U, 7'U, 9'U) and on the lower side of the upper side weft yarns (1'U, 3'U, 6'U, 8'U), respectively. In addition, although the weft yarns into which the upper side warp yarns 1U are woven one by one are not included in the binder weft yarns, the upper side warp yarns 1U pass on the upper side of the binder weft yarns (5'B, 10'B). Figure 2

[0043] The upper side warp yarns (3U, 5U, 7U) are woven into the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U) in the same manner as the upper side warp yarns 1U. In addition, the upper side warp yarns (2U, 6U) are woven one by one into the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U) in the same manner as the upper side warp yarns 1U, but the weaving positions are shifted in the warp direction by one compared to the upper side warp yarns 1U. In this way, the upper side warp yarns (1U ~ 3U, 5U ~ 7U) have the same weaving pattern, form yarn loops at certain intervals with respect to the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U), and are alternately woven into the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U) without changing (disrupting, destroying) the surface weave. The upper side warp yarns (1U ~ 3U, 5U ~ 7U) are not woven into the lower side weft yarns (1'L, 3'L, 6'L, 8'L), but only into the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U) and the binder weft yarns (5'B, 10'B) to constitute a part of the upper side fabric.

[0044] The lower side warp yarns 1L form yarn loops on the lower side of the lower side weft yarn 1'L and on the upper side of the three lower side weft yarns (3'L, 6'L, 8'L). In addition, although the weaving pattern in which the lower side warp yarns 1L pass on the lower side of one lower side weft yarn and on the upper side of three lower side weft yarns does not include the binder weft yarns, the lower side warp yarns 1L pass on the lower side of the binder weft yarns (5'B, 10'B). The lower side warp yarns (2L, 3L, 5L ~ 7L) include warp yarns whose weaving positions are shifted in the warp direction compared to the lower side warp yarns 1L, but have the same weaving pattern as the lower side warp yarns 1L and are woven by passing on the lower side of one lower side weft yarn and on the upper side of three lower side weft yarns. In this way, the lower side warp yarns (1L ~ 3L, 5L ~ 7L) are not woven into the upper side weft yarns (1'U ~ 4'U, 6'U ~ 9'U), but only into the lower side weft yarns (1'L, 3'L, 6'L, 8'L) and the binder weft yarns (5'B, 10'B) to constitute a part of the lower side fabric.​

[0045] The upper side warp yarns (1U-3U, 5U-7U) have the same (common) weave pattern when the binding weft yarns (5'B, 10'B) are removed. That is, when the binding weft yarns (5'B, 10'B) are removed, the upper side warp yarns (1U-3U, 5U-7U) have the weave pattern in which one is woven above and below the upper side weft yarns (1 'U-4 'U, 6 'U-9 'U), respectively.

[0046] Further, the lower side warp yarns (1L-3L, 5L-7L) also have the same weave pattern when the binding weft yarns (5'B, 10'B) are removed, and have the weave pattern in which one is woven through the lower side of one lower side weft yarn and the upper side of three lower side weft yarns to the lower side weft yarns (1 'L, 3 'L, 6 'L, 8 'L). In this way, the binding weft yarns (5'B, 10'B) are not included in the weave pattern of the upper side warp yarns and the lower side warp yarns.

[0047] Figure 2 (b) of FIG. 4 shows the manner in which the upper side warp yarn 4U and the binding warp yarn 4B are woven to the upper side weft yarns, the lower side weft yarns, and the binding weft yarns. The upper side warp yarn 4U and the binding warp yarn 4B are opposed to each other in pairs, and are crossed for binding based on the binding warp yarn 4B.

[0048] The upper side warp yarn 4U forms a yarn node through the upper side of the upper side weft yarns (3 'U, 6 'U, 8 'U), respectively, and through the lower side of the upper side weft yarns (1 'U, 2 'U, 4 'U, 7 'U, 9 'U). Further, the upper side warp yarn 4U passes through the upper side of the binding weft yarns (5'B, 10'B).

[0049] The binding warp yarn 4B forms a yarn node through the lower side of the lower side weft yarn 6 'L, and forms a yarn node N1 through the upper side of the upper side weft yarn 1 'U. The binding warp yarn 4B is woven to the lower side weft yarns (1 'L, 3 'L, 6 'L, 8 'L) in a manner in which one passes through the lower side of one lower side weft yarn and three pass through the upper side of three lower side weft yarns, and forms yarn nodes at regular intervals in the lower side fabric, and is woven to the lower side fabric without changing the back weave. The binding warp yarn 4B passes through the lower side of the binding weft yarns (5'B, 10'B).

[0050] The binding warp yarn 4B passes through the upper side of the upper side weft yarn 1 'U for binding to the upper side fabric, and forms only one yarn node N1 on the surface side, and passes through the lower side of the upper side weft yarns (2 'U-4 'U, 6 'U-9 'U)

[0051] The group of the upper side warp yarn 4U and the binding warp yarn 4B has the same weave pattern as the upper side warp yarns (1U to 3U, 5U to 7U) and the lower side warp yarns (1L to 3L, 5L to 7L) when the binding weft yarns (5'B, 10'B) are removed. That is, when the binding weft yarns (5'B, 10'B) are removed, the group of the upper side warp yarn 4U and the binding warp yarn 4B has a weave pattern in which the upper side warp yarn 4U and the binding warp yarn 4B are woven one by one above and below the upper side weft yarns (1'U to 4'U, 6'U to 9'U), and has a weave pattern in which the upper side warp yarn 4U and the binding warp yarn 4B are woven to the lower side weft yarns (1'L, 3'L, 6'L, 8'L) in a manner passing through the lower side of one lower side weft yarn and the upper side of three lower side weft yarns. The weave position of the group of the upper side warp yarn 8U and the binding warp yarn 8B is shifted in the warp direction compared with the group of the upper side warp yarn 4U and the binding warp yarn 4B, but has the same weave pattern as the group of the upper side warp yarn 4U and the binding warp yarn 4B and functions in the same manner.

[0052] At the position where the binding warp yarn 4B forms the yarn knuckles N1 on the surface side, the upper side warp yarn 4U passes through the lower side of the upper side weft yarn 1'U on the surface side and functions as an upper side change yarn 4U that changes a part of the upper side surface weave.

[0053] The upper side warp yarn 4U and the binding warp yarn 4B complement each other in the surface weave of the upper side fabric, whereby the same surface weave as the upper side warp yarns (1U to 3U, 5U to 7U) other than the upper side warp yarn 4U (upper side change yarn) is formed, and the same number of yarn knuckles as the upper side warp yarns (1U to 3U, 5U to 7U) other than the upper side change yarn 4U is formed in the upper side surface weave. Thus, the group of the upper side warp yarn 4U and the binding warp yarn 4B complement each other and forms a weave pattern equivalent to the weave pattern formed by one upper side warp yarn and a weave pattern equivalent to the weave pattern formed by one lower side warp yarn, respectively. Further, the binding weft yarns (5'B, 10'B) are not included in the weave pattern of the upper side warp yarn 4U and the binding warp yarn 4B. Thus, the lowering of the surface property of the upper side fabric is suppressed by the binding warp yarn 4B. Further, the group of the upper side change yarn 4U and the binding warp yarn 4B is bound, whereby the lowering of the surface property can be suppressed compared with the case where the group of the binding warp yarns is provided above and below.

[0054] The upper side warp yarns (1U to 8U) and the binding warp yarns (4B, 8B) are woven to the upper side weft yarns (1'U to 4'U, 6'U to 9'U) and constitute the upper side fabric in which each warp yarn column is formed in a prescribed weave pattern. That is, the upper side warp yarns (1U to 8U) and the binding warp yarns (4B, 8B) form yarn knuckles at prescribed intervals in the upper side fabric. Thus, the lowering of the surface property of the upper side fabric can be suppressed.

[0055] The underside warp yarns (1L-3L, 5L-7L) and the knotting warp yarns (4B, 8B) are woven into the underside weft yarns (1'L, 3'L, 6'L, 8'L) to form an underside fabric with a prescribed weaving pattern for each warp row. That is, the underside warp yarns (1L-3L, 5L-7L) and the knotting warp yarns (4B, 8B) form yarn knots at prescribed intervals in the underside fabric. This helps to suppress the reduction of the surface texture of the underside fabric.

[0056] The top-side warp yarns (1U to 8U) and the knotting warp yarns (4B, 8B) have the same diameter, but in other cases, they can have different diameters. The knotting warp yarns (4B, 8B) also appear on the top-side surface, so surface degradation can be suppressed by using the same diameter as the top-side warp yarns (1U to 8U). The bottom-side warp yarns can have a larger diameter than the top-side warp yarns. By making the bottom-side warp yarns larger than the top-side warp yarns, the stiffness and warp elongation of the industrial fabric 10 can be improved.

[0057] Figure 3 (a) shows the way the upper weft yarn 3'U and the lower weft yarn 3'L are incorporated into the upper warp yarn, the lower warp yarn, and the splicing warp yarn. Figure 3 As shown in (a), the upper weft yarns 3'U are woven one by one into the upper warp yarns (1U to 8U), forming yarn knots on the upper side of the upper warp yarns (2U, 4U, 6U, 8U) and on the lower side of the upper warp yarns (1U, 3U, 5U, 7U). The upper weft yarns (2'U, 4'U, 7'U to 9'U) have the same weaving pattern as the upper weft yarns 3'U, and are woven one by one into the upper warp yarns (1U to 8U). In addition, although the upper weft yarns (1'U, 6'U) have the same weaving pattern as the upper weft yarns 3'U, the woven objects include the upper warp yarns (1U to 8U) and the connecting warp yarns.

[0058] The lower weft yarn 3'L passes under the six lower warp yarns (1L-3L, 4B, 5L, 8B) to form a long yarn knot, and then passes over the two lower warp yarns (6L, 7L). The lower warp yarns include not only the lower warp yarns (1L-3L, 5L-7L) but also the knotting warp yarns (4B, 8B). Although the lower weft yarns (1'L, 6'L, 8'L) contain weft yarns whose weft insertion position is offset from that of the lower weft yarn 3'L, they have the same weaving pattern as the lower weft yarn 3'L. They pass under the six lower warp yarns to form a long yarn knot, and then pass over the two lower warp yarns.

[0059] Figure 3The (b) in FIG. 6 shows the manner in which the binder weft yarn 5'B is woven into the upper side and lower side warp yarns. The binder weft yarn 5'B forms a yarn node by passing over the upper sides of 6 lower side warp yarns (1L, 4B, 5L-7L, 8B) and passing under the lower sides of 2 lower side warp yarns (2L, 3L). The binder weft yarn 5'B forms a yarn node by passing over the upper side of the upper side warp yarn 6U and passing under the lower sides of the upper side warp yarns (1U-5U, 7U, 8U) other than this. That is, the binder weft yarn 5'B forms one yarn node in the upper side surface weave and one yarn node in the lower side surface weave.

[0060] The binder weft yarn 5'B forms a yarn node N2 that passes over the upper side of 2 or fewer of the upper side warp yarns 6U among the upper side warp yarns (1U-8U). That is, the binder weft yarn 5'B does not form a yarn node that passes over the upper sides of 3 or more consecutive upper side warp yarns among the upper side warp yarns (1U-8U). The yarn node N2 formed by the binder weft yarn 5'B on the upper side passes over the upper side of 1 upper side warp yarn 6U. By this, the portion of the binder weft yarn 5'B that is exposed to the upper side surface is reduced, the durability of the binder weft yarn 5'B can be improved, and damage to the binder weft yarn 5'B caused by the high pressure washing spray device of the paper machine or the like can be suppressed. Further, by reducing the portion of the binder weft yarn 5'B that is exposed to the lower side surface, abrasion of the binder yarn caused by the drive roller of the paper machine or the like, the water absorption tank, or the like can be suppressed. Further, the binder weft yarn 5'B forms a yarn node that passes under the lower sides of the lower side warp yarns and the binder warp yarns (that is, 2 or fewer of the lower side warp yarns (2L, 3L) among the lower side warp yarns (1L-3L, 4B, 5L-7L, 8B)). By this, the portion of the binder weft yarn 5'B that is exposed to the lower side surface can be reduced. Further, the weaving position of the binder weft yarn 10'B is shifted in the weft direction compared to the binder weft yarn 5'B, but has the same weaving pattern and functions in the same manner

[0061] The industrial fabric 10 is bound by the binder weft yarns (5'B, 10'B) and the group of the binder warp yarns (4B, 8B) and the upper side warp yarns that are arranged separately in the warp direction, and thus can be bound with an appropriate binding force that can suppress internal abrasion of the upper side fabric and the lower side fabric. On the basis of binding by the binder warp yarns, binding is also performed by the binder weft yarns that are not included in the weaving pattern, and thus, compared to the case where the number of binder warp yarns is simply increased, appropriate binding force settings can be achieved, and a decrease in the surface properties and the air permeability can be suppressed.

[0062] The binder weft yarns (5'B, 10'B) are arranged so as not to be adjacent in the warp direction. By this, the binding positions can be dispersed and a decrease in the dewatering properties caused by binding can be suppressed, and the air permeability can be improved.

[0063] The thread diameter of the binding weft yarns (5'B, 10'B) is smaller than that of the under-side weft yarns (1'L, 3'L, 6'L, 8'L), for example, is set to be less than half the size of the under-side weft yarns (1'L, 3'L, 6'L, 8'L). Thus, even if the binding weft yarns (5'B, 10'B) are not included in the prescribed weave pattern of each warp yarn, the shift of the prescribed weave pattern can be suppressed.

[0064] Further, the binding weft yarns (5'B, 10'B) are configured to be less exposed to the surface than the under-side weft yarns (1'L, 3'L, 6'L, 8'L). The binding weft yarns (5'B, 10'B) are exposed to the under-side surface by passing under the lower sides of two of the under-side warp yarns (1L, 4B, 5L-7L, 8B), in contrast to which the under-side weft yarns (1'L, 3'L, 6'L, 8'L) are exposed to the under-side surface by passing under the lower sides of six of the under-side warp yarns (1L, 4B, 5L-7L, 8B). Thus, the abrasion of the binding weft yarns (5'B, 10'B) having a small thread diameter can be suppressed.

[0065] The number of all the warp yarns (1U-8U, 1L-3L, 4B, 5L-7L, 8B) constituting the full organization is a multiple of four. Thus, various weaving methods such as plain weave, twill weave, 2 / 2 weave in which two are alternately woven every two, 1 / 2 weave, 1 / 4 weave, and the like can be dealt with.

[0066] [Second Embodiment]

[0067] Figure 4 A design drawing of the full organization of the industrial fabric 20 of the second embodiment. Figure 5 A cross-sectional view along the warp direction of the warp yarns in the design drawing shown in FIG. 6. Figure 4 A cross-sectional view along the weft direction of the weft yarns in the design drawing shown in FIG. 6. Figure 6 Figure 4

[0068] Figure 4 ​​The industrial fabric 20 of the second embodiment shown is constructed by first binding warp yarns (4Bf, 8Bf), second binding warp yarns (4Bs, 8Bs), and binding weft yarns (4'B, 9'B, 14'B, 19'B) binding an upper side fabric composed of upper side warp yarns (1U~3U, 5U~7U) and upper side weft yarns (1'U~3'U, 5'U~8'U, 10'U~13'U, 15'U~18'U, 20'U) and a lower side fabric composed of lower side warp yarns (1L~3L, 5L~7L) and lower side weft yarns (1'L, 3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L). The first binding warp yarns (4Bf, 8Bf) and the second binding warp yarns (4Bs, 8Bs) are simply referred to as binding warp yarns without distinguishing between the first binding warp yarns and the second binding warp yarns.

[0069] The upper side weft yarns (1'U~3'U, 5'U~8'U, 10'U~13'U, 15'U~18'U, 20'U) constitute a part of the upper side fabric. The lower side weft yarns (1'L, 3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L) constitute a part of the lower side fabric. The binding warp yarns (4Bf, 4Bs, 8Bf, 8Bs) bind the upper side fabric and the lower side fabric to constitute a part of the upper side fabric and a part of the lower side fabric, respectively. The binding weft yarns (4'B, 9'B, 14'B, 19'B) bind the upper side fabric and the lower side fabric but are not included in the weave pattern of the upper side warp yarns and the binding warp yarns.

[0070] Figure 5 (a) of FIG. 1 shows the manner in which the upper side warp yarn 1U and the lower side warp yarn 1L are woven into the upper side weft yarns, the lower side weft yarns, and the binding weft yarns. As shown in (a) of FIG. 1, the upper side warp yarn 1U is woven into the upper side weft yarns (1'U~3'U, 5'U~8'U, 10'U~13'U, 15'U~18'U, 20'U) in such a manner that it alternately repeats passing over one upper side weft yarn to form a yarn loop and passing under three upper side weft yarns. Further, the binding weft yarns are not included in the weave pattern in which the upper side warp yarn 1U is woven into the upper side weft yarns, but the upper side warp yarn 1U passes over the upper side of the binding weft yarn (4'B, 9'B, 19'B) and passes under the lower side of the binding weft yarn 14'B. Figure 5

[0071] The upper side warp yarn 5U has the same weave pattern as the upper side warp yarn 1U and has a weave pattern in which it is alternately woven over one upper side weft yarn and under three upper side weft yarns. The weave positions of the upper side warp yarns (2U, 3U, 6U, 7U) are shifted in the warp direction compared to the upper side warp yarn 1L, but have the same weave pattern as the upper side warp yarn 1U and have a weave pattern in which they are alternately woven over one upper side weft yarn and under three upper side weft yarns.​

[0072] Thus, the upper side warp yarns (1U-3U, 5U-7U) have the same weave pattern as when the binder weft yarns (4'B, 9'B, 14'B, 19'B) are removed, and yarn nodes are formed at regular intervals for the upper side weft yarns (1'U-3'U, 5'U-8'U, 10'U-13'U, 15'U-18'U, 20'U), and are woven into the upper side weft yarns (1'U-3'U, 5'U-8'U, 10'U-13'U, 15'U-18'U, 20'U) without changing the surface weave. The upper side warp yarns (1U-3U, 5U-7U) are not woven into the lower side weft yarns, but are woven only into the upper side weft yarns and the binder weft yarns to form part of the upper side fabric. The upper side warp yarns (1U-3U, 5U-7U) have the same weave pattern for the weft yarns as when the binder weft yarns (4'B, 9'B, 14'B, 19'B) are removed.

[0073] The lower side warp yarn 1L passes under the lower side of the lower side weft yarns (6'L, 13'L) to form yarn nodes, and passes between these yarn nodes over the upper sides of 2 lower side weft yarns (8'L, 11'L) and over the upper sides of 4 lower side weft yarns (1'L, 3'L, 16'L, 18'L). In addition, the lower side warp yarn 1L passes under the lower side of the binder weft yarns (9'B, 14'B, 19'B) and over the upper side of the binder weft yarn 4'B. The lower side warp yarns (2L, 3L, 5L-7L) have the same weave pattern as the lower side warp yarn 1L, and are woven by passing under the lower side of 1 lower side weft yarn, over the upper sides of 2 lower side weft yarns, under the lower side of 1 lower side weft yarn, and over the upper sides of 4 lower side weft yarns. Thus, the lower side warp yarns (1L-3L, 5L-7L) are not woven into the upper side weft yarns, but are woven only into the lower side weft yarns and the binder weft yarns to form part of the lower side fabric.

[0074] In addition, the lower side warp yarns (1L-3L, 5L-7L) also have the same weave pattern as when the binder weft yarns (4'B, 9'B, 14'B, 19'B) are removed, and have a weave pattern that is woven by passing under the lower side of 1 lower side weft yarn, over the upper sides of 2 lower side weft yarns, under the lower side of 1 lower side weft yarn, and over the upper sides of 4 lower side weft yarns. Thus, the binder weft yarns (4'B, 9'B, 14'B, 19'B) are not included in the weave pattern of the upper side warp yarns and the lower side warp yarns.

[0075] Figure 5 (b) of FIG. 4 shows the manner in which the first binder warp yarn 4Bf and the second binder warp yarn 4Bs are woven into the upper side weft yarns and the lower side weft yarns. The first binder warp yarn 4Bf and the second binder warp yarn 4Bs are arranged in pairs, one above the other, and are crossed over each other for the purpose of binding. Figure 5 The arrangement of the upper side weft yarns, the lower side weft yarns, and the binder weft yarns shown in (b) of FIG. 4 is the same asFigure 5 The weft yarn configuration shown in (a) is the same.

[0076] The first joining warp yarn 4Bf passes over the upper side of the upper weft yarns (3'U, 13'U, 18'U) to form three yarn knots, and then passes under the upper side of the upper weft yarns (1'U, 2'U, 5'U~8'U, 10'U~12'U, 15'U~17'U, 20'U). Furthermore, the first joining warp yarn 4Bf passes over the joining weft yarns (4'B, 14'B, 19'B) and under the joining weft yarn 9'B. The first joining warp yarn 4Bf passes under the lower side of the lower weft yarn 8'L to form one yarn knot, and then passes over the lower side of all the lower side weft yarns except for the lower side weft yarn 8'L.

[0077] The second knotting warp yarn 4Bs forms a yarn knot by passing over the upper side of the upper weft yarn 8'U and under the lower side of the lower weft yarn 16'L. Furthermore, the second knotting warp yarn 4Bs passes under the upper side weft yarns (excluding the upper side weft yarn 8'U) and over the lower side weft yarns (excluding the lower side weft yarn 16'L). The second knotting warp yarn 4Bs passes under the knotting weft yarns (4'B, 14'B, 19'B) and over the knotting weft yarn 9'B.

[0078] When the weft yarns (4'B, 9'B, 14'B, 19'B) are removed, the first weft yarn 4Bf and the second weft yarn 4Bs have a weaving pattern for the upper side weft yarns (1'U~3'U, 5'U~8'U, 10'U~13'U, 15'U~17'U, 20'U) that is woven in an alternating manner, passing over the upper side of one upper side weft yarn and the lower side of three upper side weft yarns. When the weft yarns (4'B, 9'B, 14'B, 19'B) are removed, the first weft yarn 4Bf and the second weft yarn 4Bs have a weaving pattern for the underside weft yarns (1'L, 3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L) in a manner that passes under the underside of one underside weft yarn, over the upper side of two underside weft yarns, under the underside of one underside weft yarn, and over the upper side of four underside weft yarns.

[0079] Thus, the group of first connecting warp yarns 4Bf and second connecting warp yarns 4Bs has the same weaving pattern as the top side warp yarns (1U-3U, 5U-7U) and bottom side warp yarns (1L-3L, 5L-7L) when the connecting weft yarns (4'B, 9'B, 14'B, 19'B) are removed. This improves the surface texture of both the top and bottom side fabrics. Furthermore, although the weaving position of the group of first connecting warp yarns 8Bf and second connecting warp yarns 8Bs is offset in the warp direction compared to the group of first connecting warp yarns 4Bf and second connecting warp yarns 4Bs, it has the same weaving pattern and performs the same function.

[0080] The first and second knot warp yarns (4Bf, 8Bf) are woven into the upper side weft yarns to form an upper side fabric with a prescribed weaving pattern for each warp row. That is, the upper side warp yarns, the first knot warp yarn, and the second knot warp yarn form yarn knots at prescribed intervals on the upper side fabric. This helps to suppress the reduction of the surface properties of the upper side fabric.

[0081] The first and second knotting warp yarns (4Bf, 8Bf) are incorporated into the underside weft yarns to form an underside fabric with a prescribed weaving pattern for each warp row. That is, the underside warp yarns, the first knotting warp yarn, and the second knotting warp yarn form yarn knots at predetermined intervals on the underside fabric. This helps to suppress any reduction in the surface texture of the underside fabric.

[0082] The top-side warp yarns (1U-3U, 5U-7U), the first knot warp yarns (4Bf, 8Bf), and the second knot warp yarns (4Bs, 8Bs) have the same diameter, but in other cases, they can have different diameters. The first knot warp yarns (4Bf, 8Bf) and the second knot warp yarns (4Bs, 8Bs) also appear on the top-side surface, so surface degradation can be suppressed by using the same diameter as the top-side warp yarns (1U-3U, 5U-7U). The bottom-side warp yarns can have a larger diameter than the top-side warp yarns. By making the bottom-side warp yarns larger than the top-side warp yarns, the stiffness and warp elongation of the industrial fabric 10 can be improved.

[0083] exist Figure 1 In the industrial fabric 10 shown, the warp yarns are joined by a group of joining warp yarns and the upper side warp yarns. Figure 4 In the industrial fabric 20 shown, the warp is joined by a group of first and second joining warp yarns. Joining the first and second joining warp yarns vertically increases the bonding strength. In all embodiments, the joining warp yarn constitutes at least one of the two warp yarns arranged vertically.

[0084] Figure 6(a) shows the way the upper weft yarn 1'U and the lower weft yarn 1'L are incorporated into the upper and lower warp yarns. Figure 6 As shown in (a), the upper weft yarn 1'U is woven into the upper warp yarns (1U-3U, 4Bf, 5U-7U, 8Bf) in an alternating manner, with one warp yarn above and three warp yarns below. It passes over the upper side of the upper warp yarns (3U, 7U) to form two yarn knots, and passes under the upper warp yarns (1U, 2U, 5U, 6U) and the first knotting warp yarns (4Bf, 8Bf). The other top-side weft yarns (2'U, 3'U, 5'U~8'U, 10'U~13'U, 15'U~18'U, 20'U) have the same weaving pattern as the top-side weft yarn 1'U, and are woven into the top-side warp yarn and the first knot warp yarn, the top-side warp yarns (1U~3U, 4Bf, 5U~7U, 8Bf) in an alternating manner, with one warp yarn on the top side and three warp yarns on the bottom side, and are respectively formed into two yarn knots by passing over the top side of the top-side warp yarn.

[0085] The lower weft yarn 1'L passes under six consecutive lower warp yarns (1L, 4Bs, 5L~7L, 8Bs) to form a long yarn knot, and then passes over two consecutive lower warp yarns (2L, 3L). The lower weft yarns (3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L) are weft-shifted compared to the lower weft yarn 1'L, but have the same weft pattern. They pass under six lower warp yarns to form a long yarn knot, and then pass over two lower warp yarns.

[0086] Figure 6 (b) shows the way the weft yarn 9'B is woven into the upper and lower warp yarns. Furthermore, Figure 6 The configuration of the upper side warp, lower side warp, first knot warp and second knot warp shown in (b) is the same except that the first knot warp 4Bf and the second knot warp 4Bs are reversed.

[0087] The weft yarn 9'B forms a yarn knot by passing over the upper side of six underside warp yarns (1L-3L, 4Bf, 5L, 8Bs) and under the lower side of two underside warp yarns (6L, 7L). The weft yarn 9'B also forms a yarn knot by passing over the upper side warp yarn 3U and under the other upper side warp yarns (1U, 2U, 4Bs, 5U-7U, 8Bf). In other words, the weft yarn 9'B forms a yarn knot on both the upper and lower surfaces.

[0088] The binding weft yarn 9'B forms a yarn node N2 that passes above the upper side warp yarn 3U of the two or less upper side warp yarns (1U~3U, 4Bs, 5U~7U, 8Bf). That is, the binding weft yarn 9'B does not form a yarn node that passes above three or more continuous upper side warp yarns. The yarn node N2 formed by the binding weft yarn 9'B on the upper side passes above the upper side warp yarn 3U. Thus, the portion of the binding weft yarn 9'B that is exposed on the upper side surface is reduced, and the durability of the binding weft yarn 9'B is improved. Further, the weaving positions of the binding weft yarns (4'B, 14'B, 19'B) are offset in the weft direction compared to the binding weft yarn 9'B, but have the same weaving pattern and function

[0089] The industrial fabric 20 is bound by the binding weft yarns (4'B, 9'B, 14'B, 19'B) arranged separately in the warp direction, and the group of the first binding warp yarns (4Bf, 8Bf) and the second binding warp yarns (4Bs, 8Bs), and thus can be bound with an appropriate binding force that can suppress internal abrasion of the upper side fabric and the lower side fabric. On the basis of binding by the binding warp yarns, binding is also performed by the binding weft yarns that are not included in the weaving pattern, and thus, compared to the case where the number of binding warp yarns is simply increased, an appropriate binding force can be achieved.

[0090] The binding weft yarns (4'B, 9'B, 14'B, 19'B) are arranged so as not to be adjacent in the warp direction. Thus, the binding positions can be dispersed, and the reduction in water repellency caused by binding can be suppressed, and the air permeability can be improved.

[0091] The binding weft yarns (4'B, 9'B, 14'B, 19'B) have a smaller diameter than the lower side weft yarns (1'L, 3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L), and are, for example, set to a size that is half or less of the diameter of the lower side weft yarns (1'L, 3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L). Thus, even if the binding weft yarns (4'B, 9'B, 14'B, 19'B) are not included in the prescribed weaving pattern of each warp yarn, the deviation of the prescribed weaving pattern can be suppressed.

[0092] Further, the binding weft yarns (4'B, 9'B, 14'B, 19'B) are configured to be less exposed on the surface than the lower side weft yarns (1'L, 3'L, 6'L, 8'L, 11'L, 13'L, 16'L, 18'L). Thus, the abrasion of the binding weft yarns (4'B, 9'B, 14'B, 19'B) that have a small diameter can be suppressed.

[0093] [Third Embodiment]

[0094] Figure 7 This is a design drawing illustrating the complete weave of the industrial fabric 30 according to the third embodiment. Figure 1 Compared to the industrial fabric 10 shown, the industrial fabric 30 of the third embodiment has more weft yarns, having 24 weft yarn rows. Furthermore, Figure 1 The industrial fabric 10 shown has a weft yarn configuration where four consecutive top-side weft yarns are sandwiched between the weft yarns, while the industrial fabric 30 has a weft yarn configuration where two consecutive top-side weft yarns are sandwiched between the weft yarns. The bonding strength can be increased by increasing the number of weft yarns.

[0095] On the other hand, industrial fabrics 30 and Figure 1 The industrial fabrics 10 shown are similar in that the upper and lower fabrics are joined by changing the yarn and joining the warp yarn and joining the weft yarn on the upper side.

[0096] [Fourth Implementation Method]

[0097] Figure 8 This is a design drawing illustrating the complete weave of the industrial fabric 40 according to the fourth embodiment. Figure 1 Compared to the industrial fabric 10 shown, the industrial fabric 40 of the fourth embodiment has more weft yarns, having 12 weft yarn rows. Furthermore, Figure 1 The weft yarns of the industrial fabric 10 shown are configured such that four consecutive upper side weft yarns are sandwiched between them, while the weft yarns of the industrial fabric 40 are configured such that two consecutive upper side weft yarns are sandwiched between them.

[0098] On the other hand, industrial fabrics 40 and Figure 1 The industrial fabrics 10 shown are similar in that the upper and lower fabrics are joined by changing the yarn and joining the warp yarn and joining the weft yarn on the upper side.

[0099] [Fifth Implementation Method]

[0100] Figure 9 This is a design drawing showing the complete structure of the industrial fabric 50 according to the fifth embodiment. Figure 10 For along Figure 9 The design drawing shown is a cross-sectional view of the warp direction of the warp yarns. Figure 11 For along Figure 9 The design drawing shown is a cross-sectional view of the weft yarn in the weft direction.

[0101] Figure 9The industrial fabric 50 of the fifth embodiment shown is formed by joining the upper side fabric composed of the upper side warp yarns (1U ~ 12U) and the upper side weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U) and the lower side fabric composed of the lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L) and the lower side weft yarns (1'L, 2'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L, 17'L, 18'L, 21'L, 22'L) by the binding warp yarns (3B, 4B, 7B, 8B, 11B, 12B), the first binding weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binding weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs). The first binding weft yarns and the second binding weft yarns are simply referred to as the binding weft yarns without distinguishing between the first binding weft yarns and the second binding weft yarns.

[0102] The upper side weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U) form a part of the upper side fabric. The lower side weft yarns (1'L, 2'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L, 17'L, 18'L, 21'L, 22'L) form a part of the lower side fabric. The binding warp yarns (3B, 4B, 7B, 8B, 11B, 12B) bind the upper side fabric and the lower side fabric to form a part of the upper side fabric and a part of the lower side fabric, respectively. The first binding weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binding weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs) bind the upper side fabric and the lower side fabric to form a weave pattern equivalent to that formed by one upper side weft yarn, and thus, unlike the industrial fabrics of the first to fourth embodiments, the first binding weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binding weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs) are included in the weave pattern of the upper side warp yarns and the binding warp yarns.

[0103] Figure 10 (a) of (a) and (b) of FIG. 6 show the manner in which the upper side warp yarn 1U and the lower side warp yarn 1L are woven with the upper side weft yarns, the lower side weft yarns and the binding weft yarns. Figure 10 The upper side weft yarns, the lower side weft yarns and the binding weft yarns shown in (a) and (b) of FIG. 6 are arranged identically. The upper side warp yarn 1U and the lower side warp yarn 1L are arranged to face each other.

[0104] like Figure 10 As shown in (a), the top warp yarn 1U is woven one by one up and down into the weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U), the first knot weft yarn (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf), and the second knot weft yarn (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs). The warp yarn 1U on the top side passes over the top side weft yarns (2'U, 5'U, 10'U, 13'U, 18'U, 21'U) and the knotting weft yarns (4'Bs, 7'Bf, 8'Bs, 11'Bf, 15'Bf, 16'Bs, 20'Bs, 23'Bf, 24'Bs), and also passes under the top side weft yarns (1'U, 6'U, 9'U, 14'U, 17'U, 22'U) and the knotting weft yarns (3'Bf, 12'Bs, 19'Bf). The warp yarn 1U on the top side passes over the top side weft yarns (2'U, 5'U, 10'U, 13'U, 18'U, 21'U) and the knotting weft yarns (7'Bf, 16'Bs, 23'Bf) to form a yarn knot.

[0105] Although the upper side warp yarns (2U, 5U, 6U, 9U, 10U) contain warp yarns whose weaving positions are offset in the warp direction compared to the upper side warp yarn 1U, they have the same weaving pattern as the upper side warp yarn 1U. They are woven one by one into the upper side weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U), the first knot weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf), and the second knot weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs). Thus, the top-side warp yarns (1U, 2U, 5U, 6U, 9U, 10U) have the same weaving pattern. For the top-side weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U), the first knot weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf), and the second knot weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs), yarn knots are formed at certain intervals, woven in without altering the surface structure. The top-side warp yarns are not woven into the bottom-side weft yarns, but only into the top-side weft yarns and knot weft yarns to form part of the top-side fabric.

[0106] The lower side warp yarn 1L passes under the lower side weft yarns (1'L, 6'L, 13'L, 18'L) and the binding weft yarns (3'Bf, 7'Bf, 8'Bs, 11'Bf, 12'Bs, 16'Bs, 19'Bf, 20'Bs, 23'Bf, 24'Bs) and over the upper side weft yarns (2'L, 5'L, 9'L, 10'L, 14'L, 17'L, 21'L, 22'L) and the binding weft yarns (4'Bs, 15'Bf). The lower side warp yarn 1L is woven in such a manner that it alternately passes under one lower side weft yarn and over two lower side weft yarns.

[0107] The lower side warp yarns (2L, 5L, 6L, 9L, 10L) have the same weaving pattern as the lower side warp yarn 1L, although they contain warp yarns that are shifted in the warp direction from the weaving positions of the lower side warp yarn 1L. The lower side warp yarns (2L, 5L, 6L, 9L, 10L) are woven in such a manner that they alternately pass under one lower side weft yarn and over two lower side weft yarns. In this way, the lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L) are not woven in all of the upper side weft yarns, but only in the lower side weft yarns and the binding weft yarns to form part of the lower side fabric.

[0108] The upper side warp yarns (1U, 2U, 5U, 6U, 9U, 10U) have the same weaving pattern in that they are woven one over one for the upper side weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U) and one over one for the weft yarns on the upper side that contain the first binding weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binding weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs).

[0109] In addition, the lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L) also have the same weaving pattern in that they are woven for the weft yarns on the lower side in such a manner that they alternately pass under one weft yarn on the lower side and over two weft yarns on the lower side.

[0110] Figure 10 (b) in FIG. 4 shows the manner in which the upper side warp yarn 4U and the binding warp yarn 4B are woven in the upper side weft yarns, the lower side weft yarns and the binding weft yarns. The upper side warp yarn 4U and the binding warp yarn 4B are arranged one above the other in a group and are crossed over each other for the binding based on the binding warp yarn 4B.

[0111] The upper side warp yarn 4U passes over the upper side of the upper side weft yarns (1 'U, 9 'U, 14 'U, 17 'U, 22 'U) and the binding weft yarns (3 'Bf, 4 'Bs, 8 'Bs, 11 'Bf, 12 'Bs, 16 'Bs, 19 'Bf, 20 'Bs, 23 'Bf) and under the lower side of the upper side weft yarns (2 'U, 5 'U, 6 'U, 10 'U, 13 'U, 18 'U, 21 'U) and the binding weft yarns (7 'Bf, 15 'Bf, 24 'Bs).

[0112] The binding warp yarn 4B passes under the lower side of the lower side weft yarns (2 'L, 9 'L, 14 'L, 21 'L) and the binding weft yarns (3 'Bf, 4 'Bs, 7 'Bf, 8 'Bs, 11 'Bf, 15 'Bf, 16 'Bs, 19 'Bf, 20 'Bs, 24 'Bs) and forms a yarn knuckle N1 which passes over the upper side of the upper side weft yarn 6 'U. The binding warp yarn 4B is woven into the lower side weft yarns (1 'L, 2 'L, 5 'L, 6 'L, 9 'L, 10 'L, 13 'L, 14 'L, 17 'L, 18 'L, 21 'L, 22 'L) in such a manner that it alternately passes under the lower side of one lower side weft yarn and over the upper side of two lower side weft yarns, forms a yarn knuckle at certain intervals for the lower side weft yarns, and is woven into the lower side weft yarns without changing the back surface weave. The binding warp yarn 4B passes over the upper side of the binding weft yarns (12 'Bs, 23 'Bf).

[0113] The binding warp yarn 4B forms only one yarn knuckle N1 on the surface side for the upper side fabric by passing over the upper side of the upper side weft yarn 6 'U for binding and passes under the lower side of the upper side weft yarns other than the upper side weft yarn 6 'U.

[0114] The group of the upper side warp yarn 4U and the binding warp yarn 4B has the same weaving pattern as the upper side warp yarns (1U, 2U, 5U, 6U, 9U, 10U) and the lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L). That is, the group of the upper side warp yarn 4U and the binding warp yarn 4B has a weaving pattern in which one upper side warp yarn and one binding warp yarn are alternately woven into the weft yarns on the upper side including the upper side weft yarn, the first binding weft yarn, and the second binding weft yarn. The weaving positions of the group of the upper side warp yarns (3U, 7U, 8U, 11U, 12U) and the binding warp yarns (3B, 7B, 8B, 11B, 12B) are shifted in the warp direction as compared with the group of the upper side warp yarn 4U and the binding warp yarn 4B, but have the same weaving pattern as the group of the upper side warp yarn 4U and the binding warp yarn 4B and function in the same manner.

[0115] At the position where the binding warp yarn 4B forms the yarn knuckle N1 on the surface side, the upper side warp yarn 4U passes under the lower side of the upper side weft yarn 6 'U and does not form a yarn knuckle on the surface side, thereby functioning as an upper side change yarn 4U which changes the upper side surface weave.

[0116] The upper side warp yarns 4U (upper side change yarns) and the binder warp yarns 4B complement each other in the surface structure of the upper side fabric, whereby the same surface structure as the upper side warp yarns other than the upper side change yarns 4U is formed, and yarn nodes are formed with the same number of upper side weft yarns as the upper side warp yarns other than the upper side change yarns 4U. Thus, the groups of the upper side warp yarns 4U and the binder warp yarns 4B complement each other to form a weave pattern equivalent to the weave pattern formed by one upper side warp yarn (1U, 2U, 5U, 6U, 9U, 10U) and a weave pattern equivalent to the weave pattern formed by one lower side warp yarn (1L, 2L, 5L, 6L, 9L, 10L), respectively. Thus, the surface property of the upper side fabric is suppressed from being reduced by the binder warp yarns 4B. Further, the groups of the upper side change yarns 4U and the binder warp yarns 4B are bound, whereby the surface property can be suppressed from being reduced compared to the case where the groups of the binder warp yarns are provided on the upper and lower sides.

[0117] The upper side warp yarns (1U to 12U) and the binder warp yarns (3B, 4B, 7B, 8B, 11B, 12B) are woven into the upper side weft yarns including the upper side weft yarns, the first binder weft yarns, and the second binder weft yarns, whereby the upper side fabric formed in a predetermined weave pattern for each warp yarn column is constituted. That is, the upper side warp yarns (1U to 12U) and the binder warp yarns (3B, 4B, 7B, 8B, 11B, 12B) form yarn nodes at predetermined intervals in the upper side fabric. Thus, the surface property of the upper side fabric can be suppressed from being reduced.

[0118] The lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L) and the binder warp yarns (3B, 4B, 7B, 8B, 11B, 12B) are woven into the lower side weft yarns including the lower side weft yarns, the first binder weft yarns, and the second binder weft yarns, whereby the lower side fabric formed in a predetermined weave pattern for each warp yarn column is constituted. That is, the lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L) and the binder warp yarns (3B, 4B, 7B, 8B, 11B, 12B) form yarn nodes at predetermined intervals in the lower side fabric. Thus, the surface property of the lower side fabric can be suppressed from being reduced.

[0119] The upper side warp yarns (1U to 12U) and the binder warp yarns (3B, 4B, 7B, 8B, 11B, 12B) have the same diameter, but in other modes, they can have different diameters. The binder warp yarns also appear on the upper side surface, so the surface property can be suppressed from being reduced by adopting the same diameter as the upper side warp yarns. The diameter of the lower side warp yarns can be larger than that of the upper side warp yarns. By making the diameter of the lower side warp yarns larger than that of the upper side warp yarns, the rigidity and the elongation in the warp direction of the industrial fabric 10 can be improved.

[0120] The group of upper side warp yarns 3U and bonding warp yarns 3B is adjacent to the group of upper side warp yarns 4U and bonding warp yarns 4B in the weft direction. This improves the bonding strength between the upper and lower side fabrics.

[0121] Figure 11 (a) shows the way the upper weft yarn 2'U and the lower weft yarn 2'L are incorporated into the upper warp yarn, the lower warp yarn, and the splicing warp yarn. Figure 11 As shown in (a), the top-side weft yarns 2'U are woven one by one into the top-side warp yarns (1U to 12U), forming yarn knots on the upper side of the top-side warp yarns (1U, 3U, 5U, 7U, 9U, 11U), and on the lower side of the top-side warp yarns (2U, 4U, 6U, 8U, 10U, 12U). The other top-side weft yarns (1'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U) have the same weaving pattern as the top-side weft yarn 2'U, and are woven one by one into the top-side warp yarns (1U to 12U) and the joining warp yarns. Under the action of the top-side weft yarns, the joining objects of the top-side fabric include not only the top-side warp yarns but also the joining warp yarns.

[0122] The lower weft yarn 2'L passes under the four lower warp yarns (6L, 7B, 8B, 9L) and the warp yarns (1L, 2L, 3B, 12B) to form two yarn knots, and then passes over the two lower warp yarns (4B, 5L) and the warp yarns (10L, 11B). The lower warp yarns include not only the lower warp yarns but also the knotting warp yarns. The other lower weft yarns (1'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L, 17'L, 18'L, 21'L, 22'L), although containing weft yarns whose weft insertion position is offset from that of the lower weft yarn 2'L, have the same weft insertion pattern as the lower weft yarn 2'L, and alternately pass under the four lower warp yarns and over the two lower warp yarns.

[0123] Figure 11The manner in which the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs are woven in the upper side warp yarns, the lower side warp yarns, and the binding warp yarns is shown in (b) in FIG. 3. The first binding weft yarn 3'Bf forms a yarn node N2 through the upper side of the upper side warp yarns (1U, 3U, 11U) respectively, and through the lower side of the upper side warp yarns (2U, 4U ~ 10U, 12U) other than the above. Further, the first binding weft yarn 3'Bf forms a yarn node N4 through the lower side of the two lower side warp yarns (6L, 7B), and through the upper side of the lower side warp yarns (1L, 2L, 3B, 4B, 5L, 8B, 9L, 10L, 11B, 12B) other than the above. That is, the first binding weft yarn 3'Bf forms three yarn nodes on the upper side surface, and one yarn node on the lower side surface.

[0124] The second binding weft yarn 4' Bs forms a yarn node N3 through the upper side of the upper side warp yarns (5U, 7U, 9U) respectively, and through the lower side of the upper side warp yarns (1U ~ 4U, 6U, 8U, 10U ~ 12U) other than the above. Further, the second binding weft yarn 4' Bs forms a yarn node N5 through the lower side of the two lower side warp yarns (1L, 12B), and through the upper side of the lower side warp yarns (2L, 3B, 4B, 5L, 6L, 7B, 8B, 9L, 10L, 11B) other than the above. That is, the second binding weft yarn 4' Bs forms three yarn nodes on the upper side surface, and one yarn node on the lower side surface, similarly to the first binding weft yarn 3'Bf.

[0125] The first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs form yarn nodes (N2, N3) through the upper side of the continuous two or less upper side warp yarns among the upper side warp yarns (1U ~ 12U). That is, the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs do not form yarn nodes through the upper side of the continuous three or more upper side warp yarns among the upper side warp yarns (1U ~ 12U). Each yarn node (N2, N3) formed by the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs on the upper side is formed through the upper side of only one upper side warp yarn. Thereby, it is possible to avoid the case where the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs form long yarn nodes on the upper side surface. In the case of use in a paper machine, although the surface of the industrial fabric is worn due to contact with each roller and a dewatering device, by avoiding the case where the yarn nodes of the binding yarns become long, it is possible to suppress damage to the binding yarns due to wear.

[0126] The first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs form a yarn node (N4, N5) passing under the lower side of two or less consecutive lower side warp yarns. That is, the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs do not form a yarn node passing under the lower side of three or more consecutive lower side warp yarns. The first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs form each yarn node (N4, N5) formed on the lower side by passing under the lower side of two consecutive lower side warp yarns. Thereby, the portion of the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs exposed to the outside is reduced, and the durability of the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs can be improved. Further, the weaving positions of the other first binding weft yarns (7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binding weft yarns (8' Bs, 12' Bs, 16' Bs, 20' Bs, 24' Bs) are shifted in the weft direction compared to the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs, but have the same weaving pattern as the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs and function in the same way.

[0127] The first binding weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binding weft yarns (4' Bs, 8' Bs, 12' Bs, 16' Bs, 20' Bs, 24' Bs) are arranged in groups adjacent to each other in the warp direction. Thereby, the binding strength of the upper side fabric and the lower side fabric can be improved.

[0128] The group of the adjacent first binding weft yarn and the second binding weft yarn forms a yarn node on the surface of the upper side fabric equivalent to the yarn node formed by one upper side weft yarn. That is, the number of the yarn nodes formed on the surface of the upper side fabric by the group of the adjacent first binding weft yarn and the second binding weft yarn is the same as the number of the yarn nodes formed on the surface of the upper side weft yarn by one upper side weft yarn. Thereby, the reduction of the surface property of the upper side fabric can be suppressed. The group of the adjacent first binding weft yarn and the second binding weft yarn forms a weaving pattern on the surface of the upper side fabric equivalent to the weaving pattern formed by one upper side weft yarn.

[0129] The industrial fabric 50 is bound by the group of the first binding weft yarn and the second binding weft yarn and the group of the binding warp yarn and the upper side warp yarn, and thus can be bound with a proper binding strength with which the internal abrasion of the upper side fabric and the lower side fabric can be suppressed. The binding is performed by the binding weft yarn in addition to the binding by the binding warp yarn, and thus, compared to the case where the number of the binding warp yarns is simply increased, a proper binding strength can be set.

[0130] The first and second binder weft yarns have a smaller diameter than the lower-side weft yarns, for example, a diameter that is set to be less than one-half the diameter of the lower-side weft yarns. Thus, even if the first and second binder weft yarns are not included in the prescribed weave pattern of each warp yarn, the prescribed weave pattern can be prevented from shifting. In addition, the first and second binder weft yarns can have the same diameter as the upper-side weft yarns, or can have a smaller diameter than the upper-side weft yarns.

[0131] In addition, the first and second binder weft yarns are configured to be less exposed to the lower-side surface than the lower-side weft yarns. The first and second binder weft yarns are exposed to the lower-side surface by passing under the lower sides of two consecutive warp yarns located on the lower side, whereas the lower-side weft yarns are exposed to the lower-side surface by passing under the lower sides of four consecutive warp yarns located on the lower side. Thus, the first and second binder weft yarns, which have a small diameter, can be prevented from being worn.

[0132] [Sixth Embodiment]

[0133] Figure 12 A design drawing showing the complete weave of the industrial fabric 60 of the sixth embodiment. Figure 13 A cross-sectional view along the warp direction of the warp yarns in the design drawing shown in FIG. 6. Figure 12 A cross-sectional view along the weft direction of the weft yarns in the design drawing shown in FIG. 6. Figure 14 Figure 12

[0134] Figure 12 The industrial fabric 60 of the sixth embodiment shown in FIG. 6 is woven by first binder warp yarns (3Bf, 7Bf, 11Bf), second binder warp yarns (3Bs, 7Bs, 11Bs), first binder weft yarns (3’Bf, 7’Bf, 11’Bf, 15’Bf, 19’Bf, 23’Bf), and second binder weft yarns (4’Bs, 8’Bs, 12’Bs, 16’Bs, 20’Bs, 24’Bs) to bind an upper-side fabric composed of upper-side warp yarns (1U, 2U, 4U-6U, 8U-10U, 12U) and upper-side weft yarns (1’U, 2’U, 5’U, 6’U, 9’U, 10’U, 13’U, 14’U, 17’U, 18’U, 21’U, 22’U) and a lower-side fabric composed of lower-side warp yarns (1L, 2L, 4L-6L, 8L-10L, 12L) and lower-side weft yarns (1’L, 2’L, 5’L, 6’L, 9’L, 10’L, 13’L, 14’L, 17’L, 18’L, 21’L, 22’L). The binder warp yarns are simply referred to as binder warp yarns without distinguishing between the first binder warp yarns and the second binder warp yarns, and the binder weft yarns are simply referred to as binder weft yarns without distinguishing between the first binder weft yarns and the second binder weft yarns.

[0135] ​​The first weft yarn (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second weft yarn (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs) join the top and bottom fabrics to form a woven pattern equivalent to the woven pattern formed by one top weft yarn, and thus are included in the woven pattern of the top warp yarns and the joining warp yarns.

[0136] Figure 13 (a) shows the way the upper side warp 1U and the lower side warp 1L are incorporated into the upper side weft, the lower side weft, and the splicing weft. Figure 13 The configurations of the top weft yarn, bottom weft yarn, and knotting weft yarn shown in (a) and (b) are the same. The top warp yarn 1U and the bottom warp yarn 1L are configured to be opposite each other.

[0137] like Figure 13 As shown in (a), the upper warp yarn 1U is woven one by one into the upper weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U), the first knot weft yarn (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf), and the second knot weft yarn (4'Bs, 8'Bs, 12'Bs, ... The yarns (16'Bs, 20'Bs, 24'Bs) pass over the upper side weft yarns (2'U, 5'U, 10'U, 13'U, 18'U, 21'U) and the knotting weft yarns (7'Bf, 16'Bs, 23'Bf) to form yarn knots, and pass under the upper side weft yarns (1'U, 6'U, 9'U, 14'U, 17'U, 22'U) and the knotting weft yarns (3'Bf, 12'Bs, 19'Bf). Furthermore, the upper side warp yarns 1U are woven one by one into the pattern of the upper side weft yarns and the knotting weft yarns, which includes knotting weft yarns. The upper side warp yarn 1U passes over the upper side of the knotted weft yarns (4'Bs, 7'Bf, 8'Bs, 11'Bf, 15'Bf, 16'Bs, 20'Bs, 23'Bf, 24'Bs) and under the lower side of the knotted weft yarns (3'Bf, 12'Bs, 19'Bf).

[0138] The upper side warp yarns (1U, 2U, 4U-6U, 8U-10U, 12U) have the same weave pattern as the upper side weft yarns, first binding weft yarns and second binding weft yarns. That is, the upper side warp yarns each have a weave pattern in which they are woven one by one up and down the weft yarns on the upper side.

[0139] The lower side warp yarn 1L passes under the lower side of the lower side weft yarns (1'L, 6'L, 13'L, 18'L) and over the upper side of the lower side weft yarns (2'L, 5'L, 9'L, 10'L, 14'L, 17'L, 21'L, 22'L), respectively. The lower side warp yarn 1L is woven in such a manner that it alternately passes under the lower side of one lower side weft yarn and over the upper side of two lower side weft yarns. In addition, the lower side warp yarn 1L passes under the lower side of the binding weft yarns (3'Bf, 7'Bf, 8'Bs, 11'Bf, 12'Bs, 16'Bs, 19'Bf, 20'Bs, 23'Bf, 24'Bf) and over the upper side of the binding weft yarns (4'Bs, 15'Bf).

[0140] The lower side warp yarns (2L, 4L-6L, 8L-10L, 12L) have the same weave pattern as the lower side warp yarn 1L, although they include warp yarns that are shifted in the warp direction from the weave-in positions of the lower side warp yarn 1L. The lower side warp yarns (2L, 4L-6L, 8L-10L, 12L) are woven in such a manner that they alternately pass under the lower side of one lower side weft yarn and over the upper side of two lower side weft yarns. Thus, the lower side warp yarns (1L, 2L, 4L-6L, 8L-10L, 12L) are not woven in all of the upper side weft yarns, but are woven in the lower side weft yarns and the binding weft yarns to form a part of the lower side fabric.

[0141] The upper side warp yarns (1U, 2U, 4U-6U, 8U-10U, 12U) have the same weave pattern as the weft yarns on the upper side that include the upper side weft yarns, the first binding weft yarns and the second binding weft yarns. That is, the upper side warp yarns each have a weave pattern in which they are woven one by one up and down the weft yarns on the upper side.

[0142] Further, the lower side warp yarns (1L, 2L, 5L, 6L, 9L, 10L) also have the same weaving-in pattern, which is woven in the lower side weft yarns (1'L, 2'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L, 17'L, 18'L, 21'L, 22'L) in the manner of weaving in the lower side of 1 lower side weft yarn and the upper side of 2 lower side weft yarns alternately.

[0143] Figure 13 (b) in FIG. 3B shows the manner in which the first binding warp yarns 3Bf and the second binding warp yarns 3Bs are woven in the upper side weft yarns and the lower side weft yarns. The first binding warp yarns 3Bf and the second binding warp yarns 3Bs are arranged in pairs in an upper and lower relationship and are crossed for binding.

[0144] The first binding warp yarns 3Bf form yarn knots by passing through the upper side of the upper side weft yarns (2'U, 18'U, 21'U) and the binding weft yarns (15'Bf, 23'Bf), and pass through the lower side of the upper side weft yarns (1'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 22'U) and the binding weft yarns (3'Bf, 4'Bs, 7'Bf, 11'Bf, 12'Bs, 16'Bs, 19'Bf). The first binding warp yarns 3Bf form yarn knots by passing through the lower side of the lower side weft yarns (17'L, 22'L), and pass through the upper side of the lower side weft yarns (1'L, 2'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L, 18'L, 21'L) and the binding weft yarns (8'Bs, 20'Bs, 23'Bf, 24'Bs). The first binding warp yarns 3Bf form two yarn knots by passing through the lower side of the lower side weft yarns (17'L, 22'L), and form five yarn knots by passing through the upper side of the weft yarns (2'U, 15'Bf, 18'U, 21'U, 23'Bf) located on the upper side.

[0145] The second binding warp yarn 3Bs forms yarn nodes by passing over the upper side of the upper side weft yarns (5'U, 10'U, 13'U) and the binding weft yarn (7'Bf), and by passing under the lower side of the lower side weft yarns (5'L, 10'L), and by passing over the upper side of the lower side weft yarns (1'L, 2'L, 6'L, 9'L, 13'L, 14'L, 17'L, 18'L, 21'L, 22'L) and the binding weft yarns (4'Bs, 7'Bf, 8'Bs, 12'Bs, 20'Bs). The second binding warp yarn 3Bs forms two yarn nodes by passing under the lower side of the lower side weft yarns (17'L, 22'L), and forms four yarn nodes by passing over the upper side of the upper side weft yarns (5'U, 7'Bf, 10'U, 13'U).

[0146] The group of the first binding warp yarn 3Bf and the second binding warp yarn 3Bs has a weaving pattern in which the yarns are woven one by one above and below the upper side weft yarns including the upper side weft yarns, the first binding weft yarns, and the second binding weft yarns. When the first binding weft yarns and the second binding weft yarns are removed, the group of the first binding warp yarn 3Bf and the second binding warp yarn 3Bs has a weaving pattern of the lower side weft yarns in which the yarns are woven alternately over the lower side of one lower side weft yarn and over the upper side of two lower side weft yarns.

[0147] Thus, the group of the first binding warp yarn 3Bf and the second binding warp yarn 3Bs has the same weaving pattern as the upper side warp yarns and the lower side warp yarns. Thereby, the surface properties of the upper side fabric and the lower side fabric can be improved. Further, the weaving positions of the group of the first binding warp yarns (7Bf, 11Bf) and the second binding warp yarns (7Bs, 11Bs) are shifted in the warp direction compared to the group of the first binding warp yarn 3Bf and the second binding warp yarn 3Bs, but have the same weaving pattern as the group of the first binding warp yarn 3Bf and the second binding warp yarn 3Bs and function in the same way.

[0148] The first binding warp yarns (3Bf, 7Bf, 11Bf) and the second binding warp yarns (3Bs, 7Bs, 11Bs) are woven in the upper side weft yarns, thereby constituting the upper side fabric formed in a predetermined weaving pattern for each warp yarn column. That is, the upper side warp yarns, the first binding warp yarns, and the second binding warp yarns form yarn nodes at predetermined intervals in the upper side fabric. Thereby, the decrease in the surface properties of the upper side fabric can be suppressed.

[0149] The first and second knotting warp yarns (3Bf, 7Bf, 11Bf) are incorporated into the underside weft yarns, thereby forming an underside fabric with a prescribed weaving pattern for each warp row. That is, the underside warp yarns, the first knotting warp yarns, and the second knotting warp yarns form yarn knots at predetermined intervals on the underside fabric. This helps to suppress any reduction in the surface texture of the underside fabric.

[0150] The top side warp, the first knot warp, and the second knot warp have the same yarn diameter, but in other cases, they can have different yarn diameters. The first knot warp and the second knot warp also appear on the top side surface, so surface degradation can be suppressed by using the same yarn diameter as the top side warp. The bottom side warp can have a larger yarn diameter than the top side warp. By making the bottom side warp diameter larger than the top side warp diameter, the stiffness and warp elongation of the industrial fabric 10 can be improved.

[0151] exist Figure 9 In the industrial fabric 50 shown, the warp yarns are joined by a group of joining warp yarns and the upper side warp yarns. Figure 12 In the industrial fabric 60 shown, the warp yarns are joined by a combination of a first joining warp yarn and a second joining warp yarn. Joining the first and second joining warp yarns vertically increases the bonding strength. In all embodiments, the joining warp yarn constitutes at least one of the two warp yarns arranged vertically.

[0152] Figure 14 (a) shows the way the upper weft yarn 2'U and the lower weft yarn 2'L are incorporated into the upper warp yarn, the lower warp yarn, and the splicing warp yarn. Figure 14 As shown in (a), the upper weft yarn 2'U is woven one by one up and down into the upper warp yarns (1U, 2U, 4U~6U, 8U~10U, 12U) and the connecting warp yarns (3Bf, 7Bf, 11Bs). It passes over the upper side of the upper warp yarns (1U, 3Bf, 5U, 7Bf, 9U, 11Bs) to form yarn knots, and passes under the upper side of the upper warp yarns (2U, 4U, 6U, 8U, 10U, 12U). The other upper weft yarns (1'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U, 17'U, 18'U, 21'U, 22'U) have the same weaving pattern as the upper weft yarn 2'U, and are woven one by one up and down into the warp yarn rows of the upper warp yarns and the connecting warp yarns.

[0153] The under side weft yarn 2'L forms two yarn knuckles by passing under the under side of four under side warp yarns (6L, 7Bs, 8L, 9L) and four under side warp yarns (IL, 2L, 3Bs, 12L), and passes over the over side of two under side warp yarns (4L, 5L) and two under side warp yarns (10L, 11Bf). The under side warp yarns include not only the under side warp yarns, but also the first and second binding warp yarns. The other under side weft yarns (IL, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L, 17'L, 18'L, 21'L, 22'L) have the same weave pattern as the under side weft yarn 2'L, and alternately pass under the under side of four under side warp yarns and over the over side of two under side warp yarns, although they include weft yarns whose weave-in positions are shifted in the weft direction compared to the under side weft yarn 2'L.

[0154] Figure 14 (b) of FIG. 6 shows the manner in which the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs are woven into the over side warp yarns, the under side warp yarns, and the binding warp yarns. In addition, in (b) of FIG. 6, the first binding warp yarn 11Bf and the second binding warp yarn 11Bs are upside down compared to the warp yarns shown in (a) of FIG. 6, and the configurations of the warp yarns other than the first and second binding warp yarns are the same. Figure 14 Figure 14 (b) of FIG. 6 shows the manner in which the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs are woven into the over side warp yarns, the under side warp yarns, and the binding warp yarns. In addition, in (b) of FIG. 6, the first binding warp yarn 11Bf and the second binding warp yarn 11Bs are upside down compared to the warp yarns shown in (a) of FIG. 6, and the configurations of the warp yarns other than the first and second binding warp yarns are the same.

[0155] The first binding weft yarn 3'Bf forms yarn knuckles N2 by passing over the over side of the over side warp yarns (1U, 3Bf, 11Bs), and passes under the under side of the over side warp yarns (2U, 4U ~ 6U, 7Bs, 8U ~ 10U, 12U) other than the over side warp yarns. In addition, the first binding weft yarn 3'Bf forms a yarn knuckle by passing under the under side of two under side warp yarns (6L, 7Bs), and passes over the over side of the under side warp yarns (IL, 2L, 3Bs, 4L, 5L, 8L ~ 10L, 11Bf, 12L) other than the under side warp yarns. That is, the first binding weft yarn 3'Bf forms three yarn knuckles in the under side surface weave, and one yarn knuckle in the over side surface weave.

[0156] ​The second binding weft yarn 4' Bs forms a yarn node N3 over the upper side of the warp yarns (5U, 7Bf, 9U) on the upper side and under the lower side of the warp yarns (1U, 2U, 3Bf, 4U, 6U, 8U, 10U, 11Bs, 12U) on the upper side except for the above. Further, the second binding weft yarn 4' Bs forms a yarn node under the lower side of the two warp yarns (1L, 12L) on the lower side and over the upper side of the warp yarns (2L, 3Bs, 4L to 6L, 7Bs, 8L to 10L, 11Bf) on the lower side except for the above. That is, the second binding weft yarn 4' Bs forms three yarn nodes on the upper side surface structure and one yarn node on the lower side surface structure similarly to the first binding weft yarn 3' Bf.

[0157] The first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs form a yarn node over the upper side of the upper side warp yarns of two or less consecutive upper side warp yarns among the upper side warp yarns. That is, the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs do not form a yarn node over the upper side of three or more consecutive upper side warp yarns among the upper side warp yarns. Each yarn node formed on the upper side by the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs is formed over the upper side of only one upper side warp yarn.

[0158] The first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs form a yarn node under the lower side of the lower side warp yarns of two or less consecutive lower side warp yarns among the lower side warp yarns including the lower side warp yarns and the binding warp yarns. That is, the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs do not form a yarn node under the lower side of three or more consecutive lower side warp yarns among the lower side warp yarns. Each yarn node formed on the lower side by the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs is formed under the lower side of two consecutive lower side warp yarns. Thereby, the exposed portions of the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs are reduced, and the durability of the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs can be improved. Further, the other first binding weft yarns (7' Bf, 11' Bf, 15' Bf, 19' Bf, 23' Bf) and the second binding weft yarns (8' Bs, 12' Bs, 16' Bs, 20' Bs, 24' Bs) have the same weaving pattern as the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs and function similarly although the weft yarns woven at the weaving positions are shifted in the weft direction compared to the first binding weft yarn 3' Bf and the second binding weft yarn 4' Bs.

[0159] The first binder weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf, 19'Bf, 23'Bf) and the second binder weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs, 20'Bs, 24'Bs) are arranged so as to be adjacent to each other in the warp direction. Thus, the binding force of the upper side fabric and the lower side fabric can be increased.

[0160] The group of the adjacent first binder weft yarn and the second binder weft yarn forms a yarn loop on the surface of the upper side fabric equivalent to the yarn loop formed by one upper side weft yarn. That is, the number of the yarn loops formed on the surface of the upper side fabric by the group of the adjacent first binder weft yarn and the second binder weft yarn is the same as the number of the yarn loops formed on the surface of the upper side fabric by one upper side weft yarn. Thus, the reduction of the surface of the upper side fabric can be suppressed.

[0161] The industrial fabric 60 is bound by the group of the first binder weft yarn and the second binder weft yarn and the group of the first binder warp yarn and the second warp yarn, and thus can be bound with a proper binding force with which the internal abrasion of the upper side fabric and the lower side fabric can be suppressed. The binding is performed by the binder weft yarn in addition to the binding by the binder warp yarn, and thus, compared to the case where the number of the binder warp yarns is simply increased, the setting of the proper binding force can be achieved.

[0162] [Seventh Embodiment]

[0163] Figure 15 A design drawing showing the full pattern of the industrial fabric 70 of the seventh embodiment. Figure 16 A cross-sectional view taken along the warp direction of the warp yarns in the design drawing shown in FIG. 7. Figure 15 A cross-sectional view taken along the weft direction of the weft yarns in the design drawing shown in FIG. 7. Figure 17 A cross-sectional view taken along the weft direction of the weft yarns in the design drawing shown in FIG. 7. Figure 15

[0164] The industrial fabric 70 of the seventh embodiment shown in FIG. 7 is bound by the first binder warp yarns (4Bf, 8Bf), the second binder warp yarns (4Bs, 8Bs), the first binder weft yarns (3'Bf, 7'Bf, 11'Bf, 15'Bf), and the second binder weft yarns (4'Bs, 8'Bs, 12'Bs, 16'Bs) to bind the upper side fabric composed of the upper side warp yarns (1U-3U, 5U-7U) and the upper side weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U) and the lower side fabric composed of the lower side warp yarns (1L-3L, 5L-7L) and the lower side weft yarns (1'L, 2'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L). The binder weft yarns are simply referred to as the weft yarns without distinguishing the first binder weft yarns and the second binder weft yarns. Figure 15

[0165] ​The first weft yarn (3'Bf, 7'Bf, 11'Bf, 15'Bf) and the second weft yarn (4'Bs, 8'Bs, 12'Bs, 16'Bs) join the top and bottom fabrics to form a woven pattern equivalent to the woven pattern formed by one top weft yarn, and thus are included in the woven pattern of the top warp yarns and the joining warp yarns.

[0166] Figure 16 (a) shows the way the upper side warp 1U and the lower side warp 1L are incorporated into the upper side weft, the lower side weft, and the splicing weft. Figure 10 The configurations of the top weft yarn, bottom weft yarn, and knotting weft yarn shown in (a) and (b) are the same. The top warp yarn 1U and the bottom warp yarn 1L are configured to be opposite each other.

[0167] like Figure 16 As shown in (a), the upper warp yarns 1U are woven one by one up and down into the upper weft yarns containing the upper weft yarns (1'U, 2'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U), the first knot weft yarn (3'Bf, 7'Bf, 11'Bf, 15'Bf), and the second knot weft yarn (4'Bs, 8'Bs, 12'Bs, 16'Bs). The upper warp yarns 1U pass over the upper weft yarns (2'U, 5'U, 10'U, 13'U) and the knot weft yarns (7'Bf, 16'Bs) to form a yarn knot, and then pass under the upper weft yarns (1'U, 6'U, 9'U, 14'U) and the knot weft yarns (3'Bf, 12'Bs). The upper side warp yarn 1U passes over the upper side of the knotted weft yarns (4'Bs, 7'Bf, 8'Bs, 11'Bf, 15'Bf, 16'Bs) and under the lower side of the knotted weft yarns (3'Bf, 12'Bs).

[0168] Although the upper-side warp yarns (2U, 3U, 5U-7U) contain warp yarns whose weaving positions are offset in the warp direction compared to the upper-side warp yarn 1U, they have the same weaving pattern as the upper-side warp yarn 1U, and are woven one by one up and down into the upper-side weft yarns. Thus, the upper-side warp yarns (1U-3U, 5U-7U) have the same weaving pattern, forming yarn knots at certain intervals with the upper-side weft yarns, and are alternately woven into the upper-side weft yarns without changing the surface structure. The upper-side warp yarns are not woven into the lower-side weft yarns, but only into the upper-side weft yarns and joining weft yarns to form part of the upper-side fabric.

[0169] The lower side warp yarn 1L forms binder yarns by passing under the lower side weft yarns (6'L, 14'L) and over the upper sides of the lower side weft yarns (1'L, 2'L, 5'L, 9'L, 10'L, 13'L). The lower side warp yarn 1L is woven in such a manner that it alternately passes under one lower side weft yarn and over three lower side weft yarns. In addition, the lower side warp yarn 1L passes under the binder weft yarns (3'Bf, 4'Bs, 7'Bf, 11'Bf, 12'Bs, 16'Bs) and over the binder weft yarns (8'Bs, 15'Bf).

[0170] The lower side warp yarns (2L, 3L, 5L to 7L) have the same weaving pattern as the lower side warp yarn 1L, and are woven in such a manner that they alternately pass under one lower side weft yarn and over three lower side weft yarns, although they include warp yarns that are woven at positions offset in the warp direction from the weaving positions of the lower side warp yarn 1L. In this way, the lower side warp yarns (1L to 3L, 5L to 7L) are not woven in all of the upper side weft yarns, but only in the lower side weft yarns and the binder weft yarns to form part of the lower side fabric.

[0171] The upper side warp yarns (1U to 3U, 5U to 7U) have the same weaving pattern in which they are woven one over the other in the upper side weft yarns.

[0172] In addition, the lower side warp yarns (1L to 3L, 5L to 7L) also have the same weaving pattern, and are woven in such a manner that they alternately pass under one lower side weft yarn and over three lower side weft yarns in the lower side weft yarns (1'L, 2'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L).

[0173] Figure 16 (b) in FIG. 4 shows the manner in which the first binder warp yarn 4Bf and the second binder warp yarn 4Bs are woven in the upper side weft yarns, the lower side weft yarns, and the binder weft yarns. The first binder warp yarn 4Bf and the second binder warp yarn 4Bs are arranged in pairs, one above the other, and cross over each other for the purpose of binding.

[0174] The first binding warp yarn 4Bf forms a yarn node by passing over the upper side of the upper side weft yarn (1 'U, 6 'U) and the binding weft yarn 3 'Bf, and passes over the lower side of the upper side weft yarn (2 'U, 5 'U, 9 'U, 10 'U, 13 'U, 14 'U) and the binding weft yarn (8 'Bs, 15 'Bf). The first binding warp yarn 4Bf forms a yarn node by passing over the lower side of the lower side weft yarn 13 'L, and passes over the upper side of the lower side weft yarn (1 'L, 2 'L, 5 'L, 6 'L, 9 'L, 10 'L, 14 'L) and the binding weft yarn (3 'Bf, 4 'Bs, 7 'Bf, 11 'Bf, 12 'Bs, 16 'Bs) except for the weft yarn 13 'L. The first binding warp yarn 4Bf forms one yarn node by passing over the lower side of the lower side weft yarn 13 'L, and forms three yarn nodes by passing over the upper side of the weft yarn (1 'U, 3 'Bf, 6 'U) located on the upper side.

[0175] The second binding warp yarn 4Bs forms a yarn node by passing over the upper side of the upper side weft yarn (9 'U, 14 'U) and the binding weft yarn 11 'Bf, and passes over the lower side of the upper side weft yarn (1 'U, 2 'U, 5 'U, 6 'U, 10 'U, 13 'U) and the binding weft yarn (3 'Bf, 4 'Bs, 7 'Bf, 8 'Bs, 15 'Bf) except for the weft yarn. The second binding warp yarn 4Bs forms a yarn node by passing over the lower side of the lower side weft yarn 5 'L, and passes over the upper side of the lower side weft yarn (1 'L, 2 'L, 6 'L, 9 'L, 10 'L, 13 'L, 14 'L) and the binding weft yarn (11 'Bf, 12 'Bs, 16 'Bs) except for the weft yarn 5 'L. The second binding warp yarn 4Bs forms one yarn node by passing over the lower side of the lower side weft yarn 5 'L, and forms two yarn nodes by passing over the upper side of the weft yarn (9 'U, 11 'Bf, 14 'U) located on the upper side.

[0176] The group of the first binding warp yarn 4Bf and the second binding warp yarn 4Bs has a weaving pattern in which the yarns are woven one by one on the weft yarns located on the upper side including the upper side weft yarn, the first binding weft yarn and the second binding weft yarn. The group of the first binding warp yarn 4Bf and the second binding warp yarn 4Bs has a weaving pattern in which the yarns are woven on the lower side weft yarns in such a manner that one lower side weft yarn is alternately passed over the lower side and three lower side weft yarns are alternately passed over the upper side.

[0177] Thus, the group of the first binding warp yarn 4Bf and the second binding warp yarn 4Bs has the same weaving pattern as the upper side warp yarn and the lower side warp yarn. In addition, the weaving position of the group of the first binding warp yarn 8Bf and the second binding warp yarn 8Bs is shifted in the warp direction as compared with the group of the first binding warp yarn 4Bf and the second binding warp yarn 4Bs, but has the same weaving pattern as the group of the first binding warp yarn 4Bf and the second binding warp yarn 4Bs and functions in the same manner.

[0178] The first and second knot warp yarns (4Bf, 8Bf) are woven into the upper side weft yarns, thereby forming an upper side fabric with a prescribed weaving pattern for each warp row. That is, the upper side warp yarns, the first knot warp yarn, and the second knot warp yarn form yarn knots at prescribed intervals on the upper side fabric. This helps to suppress the reduction of the surface texture of the upper side fabric.

[0179] The first and second knotting warp yarns (4Bf, 8Bf) are incorporated into the underside weft yarns, thereby forming an underside fabric with a prescribed weaving pattern for each warp row. That is, the underside warp yarns, the first knotting warp yarn, and the second knotting warp yarn form yarn knots at predetermined intervals on the underside fabric. This helps to suppress any reduction in the surface texture of the underside fabric.

[0180] Figure 17 (a) shows the way the upper weft yarn 2'U and the lower weft yarn 2'L are incorporated into the upper warp yarn, the lower warp yarn, and the splicing warp yarn. Figure 17 As shown in (a), the upper weft yarn 2'U is woven one by one into the upper warp yarns (1U-3U, 4Bs, 5U-7U, 8Bf), and passes over the upper side of the upper warp yarns (2U, 4Bs, 6U, 8Bf) to form yarn knots, and passes under the upper side of the upper warp yarns (1U, 3U, 5U, 7U). The other upper weft yarns (1'U, 5'U, 6'U, 9'U, 10'U, 13'U, 14'U) have the same weaving pattern as the upper weft yarn 2'U, and are woven one by one into the upper warp yarns.

[0181] The lower weft yarn 2'L passes under the six lower warp yarns (1L-3L, 4Bf, 7L, 8Bs) to form a long yarn knot, and then passes over the two lower warp yarns (5L, 6L). The other lower weft yarns (1'L, 5'L, 6'L, 9'L, 10'L, 13'L, 14'L), although containing weft yarns whose weft insertion position is offset from that of the lower weft yarn 2'L, have the same weft insertion pattern as the lower weft yarn 2'L, pass under the six lower warp yarns to form a long yarn knot, and then pass over the two lower warp yarns.

[0182] Figure 17 (b) shows the manner in which the first knotting weft yarn 3'Bf and the second knotting weft yarn 4'Bs are woven into the upper side warp yarn, the lower side warp yarn, and the knotting warp yarn. Furthermore, in Figure 17 In (b) of the middle, with Figure 17 The warp configuration shown in (a) is the same.

[0183] The first binding weft yarn 3'Bf forms yarn nodes passing over the upper sides of 2 or less consecutive upper side warps among the upper side warps. That is, the first binding weft yarn 3'Bf does not form yarn nodes passing over the upper sides of 3 or more consecutive upper side warps. Each yarn node formed by the first binding weft yarn 3'Bf on the upper side is formed passing over the upper side of only 1 upper side warp.

[0184] The second binding weft yarn 4' Bs forms yarn nodes passing over the upper sides of 2 or less consecutive upper side warps among the upper side warps. That is, the second binding weft yarn 4' Bs does not form yarn nodes passing over the upper sides of 3 or more consecutive upper side warps. Each yarn node formed by the second binding weft yarn 4' Bs on the upper side is formed passing over the upper side of only 1 upper side warp.

[0185] The first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs form yarn nodes passing over the upper sides of 2 or less consecutive upper side warps among the upper side warps. That is, the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs do not form yarn nodes passing over the upper sides of 3 or more consecutive upper side warps among the upper side warps. Each yarn node formed by the first binding weft yarn 3'Bf and the second binding weft yarn 4' Bs on the upper side is formed passing over the upper side of only 1 upper side warp.

[0186] The first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs form yarn nodes that pass under the lower side of one or less of the continuous lower side warp yarns. That is, the first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs do not form yarn nodes that pass under three or more of the continuous lower side warp yarns. The first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs form each yarn node on the lower side such that it passes under one lower side warp yarn. Thus, the durability of the first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs can be improved by reducing the exposed portions of the first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs and suppressing abrasion. Further, the other first binder weft yarns (7'Bf, 11'Bf, 15'Bf) and the other second binder weft yarns (8' Bs, 12' Bs, 16' Bs) have the same weaving pattern as the first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs and function in the same way, although the weaving positions of the other first binder weft yarns (7'Bf, 11'Bf, 15'Bf) and the other second binder weft yarns (8' Bs, 12' Bs, 16' Bs) are offset in the weft direction compared to the first binder weft yarn 3'Bf and the second binder weft yarn 4' Bs.

[0187] The first binder weft yarns and the second binder weft yarns are arranged in groups adjacent to each other in the warp direction. The groups of adjacent first binder weft yarns and second binder weft yarns form yarn nodes on the surface of the upper side fabric equivalent to the yarn nodes formed by one upper side weft yarn. That is, the groups of adjacent first binder weft yarns and second binder weft yarns form the same number of yarn nodes on the surface of the upper side fabric as the number of yarn nodes formed by one upper side weft yarn on the surface of the upper side fabric. Thus, the surface properties of the upper side fabric can be suppressed from deteriorating.

[0188] [Eightth Embodiment]

[0189] Figure 18 A design diagram showing the complete weave of the industrial fabric 80 of the eighth embodiment. The industrial fabric 80 of the eighth embodiment is different from the industrial fabric 60 shown in FIG. 1 in that the number of groups of first binder warp yarns and second binder warp yarns is greater than the number of groups of first binder warp yarns and second binder warp yarns in the industrial fabric 60 shown in FIG. 1, and in that the groups of first binder warp yarns and second binder warp yarns are adjacent in the industrial fabric 80 of the eighth embodiment, whereas the groups of first binder warp yarns and second binder warp yarns are not adjacent in the industrial fabric 60 shown in FIG. 1. Figure 12 Figure 12 Figure 12

[0190] The following processing can also be performed on the industrial fabrics of the above-described embodiments. For example, to improve the smoothness of the surface, a polishing process can be applied such that the surface side of the industrial fabric is in the range of 0.02 to 0.05 mm. In particular, the surface side can be polished to 0.02 mm or 0.03 mm.

[0191] ​​​Further, in order to suppress the yarn from spreading out at the end of the web (industrial fabric), the range of 5 to 30 mm from the end of the web (particularly, the range of 5, 10, and 20 mm) can be coated with a polyurethane resin, whereby reinforcement is performed. The coating of the end of the web can be performed on one side or on both sides. The resin can be a polyurethane hot melt adhesive.

[0192] In order to improve the wear resistance of the end of the web, the range of 20 to 500 mm from the end of the web (particularly, the range of 25, 50, 75, 100, 150, 250, 300, 350, 400 mm) can be coated with 3 to 16 (particularly, 3, 4, 7, 8, 10, 12, 15, 16) strips of resin having a width of about 7 mm, whereby the entire length is coated. The above-described multiple strips of polyurethane resin can be applied to both ends of the web or can be applied to only one end. The resin can be a polyurethane hot melt adhesive.

[0193] Further, in order to improve the dirt resistance, the entire web can also be coated with a resin. Further, in order to trim the papermaking cloth near the end of the web, the range of 10 to 500 mm from the end of the web (particularly, 10, 15, 20, 25, 30, 40, 50, 75, 100, 150, 200, 250, 300, 350, 400 mm) can be coated with 1 strip of resin having a width of about 3, 5, 7, 10, 15, 20 mm, whereby the entire length is coated. The above-described resin can be applied to both ends of the web or can be applied to only one end. The resin can be a polyurethane or a hot melt adhesive. Further, a line having a width of about 25 mm or 50 mm can be drawn on the entire width of the web to show the bending of the web in use.

[0194] The range of preferred elements of the industrial fabric is listed below. The thread diameter of the warp yarns (the warp yarns include the upper side warp yarns, the lower side warp yarns, the first binder warp yarns, the second binder warp yarns, and the third binder warp yarns) is preferably 0.10 to 1.0 mm, more preferably 0.1 to 0.5 mm, and particularly preferably 0.11 to 0.35 mm. The thread diameter of the lower side warp yarns can be the same as the thread diameter of the upper side warp yarns or can be set to be 1.1 to 1.2 times the size of the thread diameter of the upper side warp yarns. Further, the thread diameter of the weft yarns 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 thread diameter of the lower side weft yarns is preferably larger than the thread diameter of the upper side weft yarns and can be 1.1 to 3.0 times the size of the thread diameter of the upper side weft yarns, more preferably 1.2 to 2.0 times the size.

[0195] The upper side weft yarns can be composed of only PET threads, only polyamide threads, or alternately of PET threads and polyamide threads. The lower side weft yarns can be composed of only PET threads, only polyamide threads, or alternately of PET threads and polyamide threads. In addition, in order to reduce the driving load of the machine, low-friction threads can be woven into the lower side weft yarns.

[0196] The ratio of the number of upper side weft yarns to the number of lower side weft yarns can be 1:1, 2:1, 3:1, 4:1, 3:2, 4:3, 5:2, 5:3, 5:4. The air permeability is preferably 100 cm3 / cm2 / s to 600 cm3 / cm2 / s, and more preferably 120 cm3 / cm2 / s to 300 cm3 / cm2 / s.

[0197] The mesh thickness is preferably 0.3 mm to 3.0 mm, more preferably 0.5 mm to 2.5 mm, and particularly preferably 0.5 mm to 1.0 mm. As a use, it is mainly used as a papermaking or nonwoven fabric conveying belt, and in particular, as a papermaking dewatering conveying belt or a spunbond nonwoven fabric conveying belt.

[0198] The cross-sectional shape of the warp yarns and weft yarns of each of the above embodiments is not limited to a circular shape, and threads having a quadrangular shape, a star shape, or the like, an elliptical shape, a hollow, a core-sheath structure, or the like can be used. In particular, by making the cross-sectional shape of the warp yarns a square or rectangular shape or an elliptical shape, the cross-sectional area of the thread can be increased, and the tensile resistance and rigidity can be improved.

[0199] In addition, as the material of the thread, it can be freely selected within a range that satisfies the target characteristics, and polyethylene terephthalate (PET), polyester, polyamide, polyphenylene sulfide, polyvinylidene fluoride, polypropylene, aramid, polyether ether ketone, polyethylene naphthalate, polytetrafluoroethylene, cotton, wool, metal, thermoplastic polyurethane, thermoplastic elastomer, or the like can be used. Of course, threads in which various substances are mixed or contained in copolymers or these materials according to the purpose can also be used. The thread used to constitute the industrial fabric is generally preferably a polyester monofilament that has rigidity and excellent dimensional stability.

[0200] The number of warp yarns is preferably 4 to 8, 10, 12, 14, 15, 16, 18, 20, 24, 28, 30, 32, 36, 40, 44, or 48. The number of warp yarns is particularly preferably a multiple of 4, a multiple of 5, or a multiple of 7. In addition, the number of weft yarns is preferably 4 to 8, 10, 12, 14, 15, 16, 18, 20, 24, 28, 30, 32, 36, 40, 44, or 48. The number of weft yarns is particularly preferably a multiple of 2, a multiple of 5, or a multiple of 7.

[0201] The warp yarns on the surface side can be plain weave, twill weave, satin weave, broken satin weave, sateen weave, 2 / 2 weave, or herringbone weave. In addition, the warp yarns on the back side can also be plain weave, twill weave, satin weave, broken satin weave, sateen weave, 2 / 2 weave, or herringbone weave. In addition, it can also be an organization in which two warp yarns form a yarn node on the lower side of the lower weft yarn at the same position, such as a heavy plain weave or a 1 / 2 · 1 / 4 weave.

[0202] (Industrial applicability)

[0203] The present application relates to an industrial fabric used for a paper machine.

[0204] (Explanation of reference numerals)

[0205] 1' L: lower side weft yarn; 1' U: upper side weft yarn; 1 L: lower side warp yarn;

[0206] 1 U: upper side warp yarn; 10: industrial fabric.

Claims

1. An industrial fabric which is joined with an upper side fabric and a lower side fabric, characterized in that, the upper side fabric and the lower side fabric are woven with warp yarns and weft yarns, the weft yarns include: a joining weft yarn for joining the upper side fabric and the lower side fabric; an upper side weft yarn for constituting a part of the upper side fabric; and a lower side weft yarn for constituting a part of the lower side fabric, the warp yarns include: a joining warp yarn for joining the upper side fabric and the lower side fabric; an upper side warp yarn which is not woven into the lower side weft yarn but is woven into the upper side weft yarn to constitute a part of the upper side fabric; and a lower side warp yarn which is not woven into the upper side weft yarn but is woven into the lower side weft yarn to constitute a part of the lower side fabric, the upper side warp yarns which are arranged in a group with the lower side warp yarns arranged above and below have the same weaving pattern when the joining weft yarn is removed, the joining warp yarn constitutes at least one of the two warp yarns arranged in a group above and below, the group of the joining warp yarn and the warp yarn arranged above and below the joining warp yarn complement each other to form a weaving pattern equivalent to that formed by one upper side warp yarn and a weaving pattern equivalent to that formed by one lower side warp yarn, respectively, the upper side warp yarn and the joining warp yarn are woven into the upper side weft yarn to constitute the upper side fabric formed with the same weaving pattern for each warp yarn column, the lower side warp yarn and the joining warp yarn are woven into the lower side weft yarn to constitute the lower side fabric formed with the same weaving pattern for each warp yarn column, and the joining weft yarn forms a yarn node which passes over the upper side of two or less of the upper side warp yarns in succession and is not adjacent in the warp direction.

2. An industrial fabric which is joined with an upper side fabric and a lower side fabric, characterized in that, the upper side fabric and the lower side fabric are woven with warp yarns and weft yarns, the weft yarns include: a joining weft yarn for joining the upper side fabric and the lower side fabric; an upper side weft yarn for constituting a part of the upper side fabric; and a lower side weft yarn for constituting a part of the lower side fabric, the warp yarns include: a joining warp yarn for joining the upper side fabric and the lower side fabric; an upper side warp yarn which is not woven into the lower side weft yarn but is woven into the upper side weft yarn to constitute a part of the upper side fabric; and a lower side warp yarn which is not woven into the upper side weft yarn but is woven into the lower side weft yarn to constitute a part of the lower side fabric, the joining warp yarn constitutes at least one of the two warp yarns arranged in a group above and below, the group of the joining warp yarn and the warp yarn arranged above and below the joining warp yarn complement each other to form a weaving pattern equivalent to that formed by one upper side warp yarn and a weaving pattern equivalent to that formed by one lower side warp yarn, respectively, the upper side warp yarn and the joining warp yarn are woven into the upper side weft yarn and the joining weft yarn to constitute the upper side fabric formed with the same weaving pattern for each warp yarn column, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The under side warp yarns and the binding warp yarns are woven into the under side weft yarns to form the under side fabric in the same weave pattern for each warp yarn column, The binding weft yarns have first binding weft yarns and second binding weft yarns arranged in groups adjacent to each other, The groups of the first binding weft yarns and the second binding weft yarns adjacent to each other complement each other to form a weave pattern on the surface of the upper side fabric equivalent to the weave pattern formed by one upper side weft yarn, The first binding weft yarns and the second binding weft yarns form a yarn node passing through the lower side of two or less consecutive upper side warp yarns, respectively, The upper side warp yarns include upper side change yarns arranged in groups above and below the binding warp yarns, The upper side change yarns change a part of the upper side surface texture by passing through the lower side of the upper side weft yarns at positions where the binding warp yarns form yarn nodes with the upper side weft yarns.

3. The industrial fabric according to claim 1 or 2, wherein The binding warp yarns have first binding warp yarns and second binding warp yarns arranged in groups above and below each other.

4. The industrial fabric according to claim 1, characterized in that The upper side warp yarns include upper side change yarns arranged in groups above and below the binding warp yarns, The upper side change yarns change a part of the upper side surface texture by passing through the lower side of the upper side weft yarns at positions where the binding warp yarns form yarn nodes with the upper side weft yarns.

5. The industrial fabric according to claim 1 or 2, wherein The binding weft yarns have a smaller diameter than the under side weft yarns.

6. The industrial fabric according to claim 1 or 2, wherein The upper side warp yarns and the binding warp yarns have the same diameter.

7. The industrial fabric according to claim 1 or 2, wherein The binding weft yarns form a yarn node passing through the lower side of two or less consecutive under side warp yarns.

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