JP2014231656A - Woven fabric for papermaking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve traveling stability and dimensional stability in a woven fabric for papermaking.SOLUTION: A woven fabric 1 for papermaking includes: weft yarns 3 which include sets each including papermaking surface side weft yarns 3A and 3C and one or more traveling surface side weft yarns present in the number equal to 1/2 to 2/3 of the number of the papermaking surface side weft yarns; and warp yarns 2. Four of the warp yarns as a set form a sub-unit 41. A first warp yarn 11 and a fourth warp yarn 14 arranged at both ends in the sub-unit pass under a first traveling surface side weft yarn 31B. The first warp yarn passes over a first papermaking surface side weft yarn 33A. The fourth warp yarn passes over a second papermaking surface side weft yarn 33C. A second warp yarn 12 and a third warp yarn 13 arranged on an inner side in the sub-unit pass under a second traveling surface side weft yarn 33B. The second warp yarn passes over a third papermaking surface side weft yarn 31A, and the third warp yarn passes over a fourth papermaking surface side weft yarn 31C. Each sub-unit is arranged in a shifted manner in the extending direction of the weft yarns.

Description

  The present invention relates to a papermaking fabric, for example, a papermaking fabric suitable for a papermaking wire used in a wire part (wet part) of a papermaking machine.

  Papermaking fabrics constructed by weaving warps and wefts are used in many applications such as papermaking wires, press felts, press belts, and dryer canvases. The papermaking wire used in the wire part of the papermaking machine responds to demands for improving the quality of manufactured paper and improving production efficiency by increasing the production speed, so that surface smoothness, strength (dimensional stability), Abrasion and water permeability are required to be high. In order to satisfy these requirements, two types of wefts having different diameters are used in the papermaking wire, and wefts having a small diameter are arranged on the papermaking surface of the papermaking wire, and the wefts having a large diameter are arranged on the papermaking wire. There is a so-called warp single weft double structure in which a warp is woven into a weft arranged on a running surface and a weft arranged on a paper surface and a weft arranged on a running surface (for example, Patent Document 1). In this papermaking wire, the number of wefts arranged on the papermaking surface side is twice that of the wefts arranged on the running surface side. Therefore, the papermaking surface is densely formed with respect to the running surface, and the surface smoothness of the manufactured paper is improved. In addition, since the number of wefts on the running surface side is smaller than that on the papermaking surface side, the porosity is increased and water permeability (dehydration) is improved. Further, since the diameter of the weft on the running surface side is larger than that on the paper making surface side, it is possible to improve the wear resistance and strength (dimensional stability).

Japanese Patent No. 479727

  In the papermaking wire according to Patent Document 1, each warp has the same weaving pattern, and passes through any one lower side (outside of the running surface) of the weft on the running surface side, and on both sides of the running surface side. A knuckle portion is formed passing over the weft. The knuckle portions are arranged at predetermined intervals in each warp. Each warp is arranged with a pattern shifted in the longitudinal direction by three running surface side wefts with respect to adjacent warps. Therefore, the paper making wire has a form in which the knuckle portion continues in a direction inclined with respect to the longitudinal direction (length direction) of the warp when viewed from the running surface side, and a pattern extending obliquely with respect to the length direction is formed. When such a pattern is formed, the papermaking wire tends to move obliquely with respect to the straight traveling direction during traveling, and traveling stability decreases. In addition, such a papermaking wire is likely to be displaced in the direction in which the knuckle portions are continuous (so-called bend), that is, easily deformed so that the rectangle becomes a parallelogram, and the size of the fabric changes in the length direction and the width direction. There is a problem that it is easy.

  This invention is made | formed in view of the above problem, and makes it a subject to improve running stability and dimensional stability in the textiles for papermaking.

  In order to solve the above-mentioned problems, the present invention includes an arbitrary number of paper-making surface side wefts (3A and 3C) and a running surface-side weft yarn (3B) of 1/2 to 2/3 of the paper-making surface side wefts. A papermaking fabric (1) having a weft (3) included as a set, and a warp (2) woven into the running surface side weft and the paper surface side weft, the four warps, and a plurality of sets Of the first weft (11) and the fourth warp (14) disposed at both ends of the subunit are the first traveling common to the traveling surface side wefts. It passes below the surface side weft (31B) and above the adjacent running surface side weft (32B, 34B), and the first warp is an arbitrary first paper surface side weft in the paper surface side weft. (33A) and above the papermaking side wefts (3 C, 33C), and the fourth warp passes above the second papermaking surface side weft (33C), which is different from the first papermaking surface side weft, and the papermaking surface side weft (33A) on both sides thereof. 34A), the second warp yarn (12) and the third warp yarn (13) disposed inside the subunit are on the second second running surface side which is different from the first running surface side weft. The third papermaking passes below the weft (33B) and above the traveling surface side wefts (32B, 34B) on both sides thereof, and the second warp is different from the first and second papermaking side wefts. Passing above the surface side weft (31A) and passing below the papermaking side wefts (34C, 31C) on both sides thereof, the third warp is composed of all of the first to third papermaking side wefts. It passes over a different fourth paper side weft (31C) and A plurality of the subunits pass below the papermaking side wefts (31A, 32A) adjacent to each other, and the subunits adjacent to each other in the extending direction of the wefts are biased in the extending direction of the warp yarns. Thus, a complete structure is formed.

  According to this configuration, four warps are formed as a set of subunits, and these subunits are arranged so as to be offset (shifted) in the weft yarn extending direction and the adjacent ones in the weft yarn extending direction. It is possible to prevent the knuckle portion formed by the warp passing through the traveling surface side of one traveling surface side weft from continuing in a direction inclined with respect to the extending direction of the warp. This improves the running stability of the papermaking fabric. Further, the papermaking fabric is less likely to be displaced in a direction inclined with respect to the warp yarn extending direction, and the dimensional change of the papermaking fabric is suppressed. In addition, the papermaking fabric has a warp-double-weave structure in which the warp is woven into the running surface side weft and the paper surface side weft, so that the thickness is relatively thin and the dewaterability is sufficient. It can be demonstrated.

  In the above invention, the subunit has a first region (46) and a second region (47) divided into two equal parts in the extending direction of the warp, and in the first region, the first warp and the The fourth warp is woven into the running surface side weft, the second warp and the third warp are woven into the papermaking surface side weft, and the second warp and the third warp are running in the second region. It is preferable that the first warp and the fourth warp are woven into the surface side weft while being woven into the surface side weft.

  According to this configuration, the knuckle portion formed by weaving the first warp yarn in the running surface side weft and the knuckle portion formed by weaving the second warp yarn in the running surface side weft are the extension of the warp yarn. It is close to one straight line extending in the current direction, and it is easy to line up in one row. The same applies to the knuckle portion formed by the third warp and the fourth warp. Therefore, the pattern of the knuckle part extends in the warp yarn extending direction, and the running stability is improved.

  In the above invention, the first warp and the fourth warp are woven so as to form a plain structure on the running surface side weft over the entire first region, and the second warp and the third warp are It is good to weave so that a plain structure may be formed in the running surface side weft in the whole 2nd field.

According to this configuration, when the first warp and the second warp are viewed in combination, the first warp and the second warp cooperate with each other in the extending direction of the warp with respect to the running surface side weft. A continuous flat structure is formed along the surface. Similarly, the third warp and the fourth warp cooperate with each other to form a continuous plain structure along the extending direction of the warp with respect to the running surface side weft. As a result, since a plain structure, which is a stable woven structure, is introduced to the traveling surface constituted by the warp and the traveling surface side wefts, traveling stability and dimensional stability are improved.

  In the above invention, the first warp and the fourth warp are woven so as to form a 3/1 structure on the running surface side weft over the entire first region, and the second warp and the third warp. Is preferably woven so as to form a 3/1 structure on the running surface side wefts over the entire second region. Here, the 3/1 structure refers to a structure in which the warp passes continuously three papers on the paper surface side of the traveling surface side weft and passes the traveling surface side of the next traveling surface side weft. That is, the number on the front side of “/” represents the number of yarns that pass continuously on the papermaking surface side of the weft, and the number on the back side of “/” represents the number of yarns that pass on the running surface side of the weft yarns continuously.

  According to this configuration, when the first warp and the second warp are viewed in combination, the first warp and the second warp cooperate with each other in the extending direction of the warp with respect to the running surface side weft. A continuous 3/1 structure will be formed along. Similarly, the third warp and the fourth warp cooperate with each other to form a continuous 3/1 structure along the extending direction of the warp on the running surface side weft. As a result, a 3/1 structure, which is a relatively stable woven structure, is introduced into the running surface constituted by the warp and the running surface side weft, so that running stability and dimensional stability are improved.

  In the above invention, the first warp and the fourth warp are woven so as to form a plain structure on the papermaking side weft over the entire second region, and the second warp and the third warp are It is good to weave so that a plain structure may be formed in the papermaking surface side weft in the whole area of the 1st field. Further, the first warp and the fourth warp are woven so as to form a １ ／ structure on the paper-making surface side weft over the entire second region, and the second warp and the third warp are It is good to weave so that a 1/3 organization may be formed in the papermaking surface side weft in the whole 1st field. Here, the 1/3 texture refers to a texture in which a warp passes through one papermaking surface side of the papermaking surface side weft and continuously passes through three traveling surfaces of the papermaking surface side weft.

  According to these configurations, the first warp and the second warp cooperate with each other to form a flat structure or a 1/3 structure continuous along the extending direction of the warp with respect to the paper surface side weft. It becomes like this. In addition, the third warp and the fourth warp cooperate with each other to form a flat structure or a third structure continuous along the extending direction of the warp with respect to the weft on the paper-making side. This improves the dimensional stability of the papermaking surface and makes the papermaking surface smooth.

  In the above invention, the first papermaking surface side weft and the second papermaking surface side weft form a weft, and the third papermaking surface side weft and the fourth papermaking surface side weft form a set. It is good to be.

  In the above invention, the diameter of the paper surface side weft may be 35% to 70% with respect to the diameter of the running surface side weft.

  In the above invention, the set of wefts includes two papermaking surface side wefts and one traveling surface side weft, or three papermaking surface side wefts and two traveling surfaces. It is good to be comprised by the surface side weft.

  According to the above structure, running stability and dimensional stability can be improved in the papermaking fabric.

The figure which looked at the wire for papermaking concerning a 1st embodiment from the papermaking surface side (A) 2A-2A sectional view of FIG. 1, (B) 2B-2B sectional view of FIG. 1, (C) 2C-2C sectional view of FIG. 1, (D) 2D-2D sectional view of FIG. It is the figure which looked at the papermaking wire which concerns on 1st Embodiment from the running surface side, Comprising: Papermaking surface side weft is abbreviate | omitted and shown The figure which looked at the wire for papermaking concerning a 2nd embodiment from the papermaking surface side (A) 5A-5A sectional view of FIG. 4, (B) 5B-5B sectional view of FIG. 4, (C) 5C-5C sectional view of FIG. 4, (D) 5D-5D sectional view of FIG. It is the figure which looked at the papermaking wire which concerns on 2nd Embodiment from the running surface side, Comprising: Papermaking surface side weft is abbreviate | omitted and shown The figure which looked at the papermaking wire which concerns on 3rd Embodiment from the papermaking surface side (A) 8A-8A sectional view of FIG. 7, (B) 8B-8B sectional view of FIG. 7, (C) 8C-8C sectional view of FIG. 7, (D) 8D-8D sectional view of FIG. It is the figure which looked at the papermaking wire which concerns on 3rd Embodiment from the running surface side, Comprising: Papermaking surface side weft is abbreviate | omitted and shown The figure which looked at the papermaking wire which concerns on 4th Embodiment from the papermaking surface side (A) 11A-11A sectional view of FIG. 10, (B) 11B-11B sectional view of FIG. 10, (C) 11C-11C sectional view of FIG. 10, (D) 11D-11D sectional view of FIG. It is the figure which looked at the papermaking wire which concerns on 4th Embodiment from the running surface side, Comprising: Papermaking surface side weft is abbreviate | omitted and shown The figure which looked at the papermaking wire which concerns on 5th Embodiment from the papermaking surface side (A) 14A-14A sectional view of FIG. 13, (B) 14B-14B sectional view of FIG. 13, (C) 14C-14C sectional view of FIG. 13, (D) 14D-14D sectional view of FIG. It is the figure which looked at the papermaking wire which concerns on 5th Embodiment from the running surface side, Comprising: Papermaking surface side weft is abbreviate | omitted and shown The figure which looked at the papermaking wire which concerns on 6th Embodiment from the papermaking surface side (A) 17A-17A sectional view of FIG. 16, (B) 17B-17B sectional view of FIG. 16, (C) 17C-17C sectional view of FIG. 16, (D) 17D-17D sectional view of FIG. It is the figure which looked at the papermaking wire which concerns on 6th Embodiment from the running surface side, Comprising: Papermaking surface side weft is abbreviate | omitted and shown

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The papermaking wire according to each of the following embodiments is used for forming wet paper from a paper material (liquid) in a wire part (wet part) of a paper machine.

(First embodiment)
As shown in FIGS. 1 and 2, the papermaking wire 1 according to the first embodiment is a woven fabric obtained by weaving warp yarns 2 extending in the length direction and weft yarns 3 extending in the width direction, and is endless in the length direction. It is formed in a shape. The papermaking wire 1 is stretched over a roll of a papermaking machine and rotates according to the rotation of the roll. Thereby, the papermaking wire 1 travels in the length direction. The length direction of the papermaking wire 1 coincides with the machine direction (Machine Direction: MD) of the paper machine, and the width direction coincides with the cross machine direction (CMD) of the paper machine. The surface of the papermaking wire that contacts the stock and wet paper is called the papermaking surface, and the surface opposite to the papermaking surface is called the running surface. A paper stock is placed on the paper making surface of the papermaking wire 1, and wet paper is formed by dehydration.

  The weft 3 is a set of two papermaking surface side wefts 3A and 3C arranged on the papermaking surface side and extending in the width direction, and one traveling surface side weft yarn 3B arranged on the running surface side and extending in the width direction. Have. When viewed from the side facing the paper making surface, the traveling surface side weft 3B is disposed between the two paper making surface side wefts 3A and 3C forming a pair. The warp yarn 2 extends in the length direction so as to be orthogonal to the papermaking surface side wefts 3A and 3C and the traveling surface side weft yarn 3B when viewed from the side facing the papermaking surface, and the papermaking surface side wefts 3A and 3C and the traveling surface side weft yarn 3B. Is interwoven (interwoven).

  The forms of the warp 2 and the weft 3 (the paper-making surface side wefts 3A and 3C and the traveling surface side weft 3B) constituting the papermaking wire 1 are not particularly limited, but it is preferable to use a monofilament. Further, each yarn may be a processed yarn subjected to crimping processing, bulky processing, or the like, or may be a non-processed yarn. Among these, non-processed yarn is preferable.

  The materials constituting the warp yarn 2 and the weft yarn 3 (paper surface side weft yarns 3A, 3C and running surface side weft yarn 3B) are not particularly limited, but polyamide resins and polyester resins are preferred.

  Among the polyamide resins, aliphatic polyamide resins are preferable, and nylon is more preferable. Examples of nylon include nylon 66, nylon 6, nylon 12, nylon 11, nylon 610, nylon 612, and the like. These may use only 1 type and may use 2 or more types together.

  The polyester resin is not particularly limited as long as it is a polyester composed of dicarboxylic acid and glycol, and examples thereof include polyethylene terephthalate (PET), polypropylene terephthalate, polybutylene terephthalate (PBT), and polyethylene naphthalate. These may use only 1 type and may use 2 or more types together. In addition, each yarn constituting the warp and the weft (the paper surface side weft and the running surface side weft) may be composed of a single material, or composed of two or more materials that are different for each warp or weft. It can also be assumed. Furthermore, each yarn may contain an inorganic filler and / or an organic filler.

  The wire diameters (diameters) of the papermaking surface side wefts 3A and 3C are set to 35% to 70% with respect to the wire diameter of the traveling surface side wefts 3B. In addition, the relationship among the wire diameters of the warp 2, the papermaking surface side wefts 3A and 3C, and the traveling surface side wefts 3B is not particularly limited. For example, the warp yarn 2 may have a wire diameter of 0.22 mm, the paper-making surface side wefts 3A and 3C may have a wire diameter of 0.22 mm, and the traveling surface side weft may have a wire diameter of 0.40 mm.

  FIG. 1 is a view of the papermaking wire according to the first embodiment as viewed from the papermaking surface side, FIG. 2 is (A) a cross-sectional view taken along 2A-2A in FIG. 1, and (B) a cross-sectional view taken along 2B-2B in FIG. (C) 2C-2C sectional drawing of FIG. 1, (D) 2D-2D sectional drawing of FIG. As shown in FIGS. 1 and 2, in the papermaking wire 1, four warp yarns 2 and four sets of weft yarns 3 arranged adjacent to each other form a subunit 41 that is a minimum repeating unit. Since one set of wefts includes two papermaking surface side wefts 3A and 3C and one traveling surface side weft 3B, a total of 12 wefts are included in the subunit. The subunit 41 is formed by first to fourth warps 11 to 14 and first to fourth sets of wefts 31 to 34. The subunit 41 is divided into two equal parts in the longitudinal direction (length direction) of the warp, and the portion corresponding to the wefts 31 and 32 is defined as a first region 46 and the portion corresponding to the wefts 33 and 34 is defined as a second region 47.

  The first warp 11 arranged at one end in the width direction in the subunit 41 passes through the traveling surface side of the traveling surface side weft 31B in the first region 46 when paying attention to the weave structure with the traveling surface side weft 3B. It passes through the papermaking surface side of the other traveling surface side wefts 3B including both sides. Further, when paying attention to the woven structure with the papermaking surface side wefts 3A and 3C, the first warp 11 passes through the papermaking surface side of the papermaking surface side weft 33A in the second region 47, and the other papermaking surface side including both sides thereof. It passes the running surface side of the wefts 3A, 3C.

  The fourth warp 14 disposed at the other end in the width direction in the subunit 41 passes through the traveling surface side of the traveling surface side weft 31B and includes both sides when paying attention to the weave structure with the traveling surface side weft 3B. The other running surface side weft 3B passes the paper making surface side. Further, when paying attention to the woven structure of the papermaking surface side wefts 3A and 3C, the fourth warp thread 14 passes through the papermaking surface side of the papermaking surface side wefts 33C and includes the other papermaking surface side wefts 3A and 3C. It passes the running surface side. The fourth warp 14 is woven into the running surface side weft 31B in the first region 46, and is woven into the paper-making surface side weft 33C in the second region 47.

  Within the sub-unit 41, the first warp 11 and the fourth warp 14 are woven into the same running surface side weft 31B in the first region 46, and the paper making side weft 33A and the paper making side that form the same set in the second region 47. It is woven into the weft 33C. Thereby, in the subunit 41, the length of the 1st warp 11 and the 4th warp 14 becomes the same.

  The second warp 12 arranged on the inner side in the width direction in the subunit 41 passes through the traveling surface side of the traveling surface side weft 33B in the second region 47 when paying attention to the woven structure with the traveling surface side weft 3B. However, it passes through the paper making surface side of the other traveling surface side wefts 3B including both sides. Further, when paying attention to the weave structure of the second warp 12 with the papermaking surface side wefts 3A and 3C, the second warp yarn 12 passes through the papermaking surface side of the papermaking surface side weft 31A in the first region 46, and the other papermaking side including both sides It passes the running surface side of the wefts 3A, 3C.

  The third warp 13 disposed on the inner side in the width direction in the subunit 41 passes through the traveling surface side of the traveling surface side weft 33B in the second region 47 when paying attention to the weave structure with the traveling surface side weft 3B. However, it passes through the paper making surface side of the other traveling surface side wefts 3B including both sides. Further, when paying attention to the woven structure with the papermaking surface side wefts 3A and 3C, the third warp 13 passes through the papermaking surface side of the papermaking surface side weft 31C in the first region 46, and the other papermaking surface side including both sides thereof. It passes the running surface side of the wefts 3A, 3C.

  In the sub-unit 41, the second warp 12 and the third warp 13 are woven into the same running surface side weft 33B in the second region 47, and the papermaking surface side weft 31A or the paper surface side forming the same set in the first region 46 It is woven into the weft 31C. Thereby, in the subunit 41, the length of the 2nd warp 12 and the 3rd warp 13 becomes the same.

  In the first region 46, the first warp 11 and the fourth warp 14 are woven into the running surface side weft 31B, and the second warp 12 and the third warp 13 are paired with the running surface side weft 31B and the paper surface side weft 31A and It is woven into 31C. On the other hand, in the second region 47, the second warp 12 and the third warp 13 are woven into the traveling surface side weft 33B, and the first and fourth warps 11 and 14 are paired with the traveling surface side weft 33B. It is woven into 33A and 33C. Thus, the set of wefts in which the first warp 11 and the fourth warp 14 are woven coincides with the set of wefts in which the second warp 12 and the third warp 13 are woven.

  The second subunit 42 formed by the first to fourth warps 15 to 18 has a set of wefts (2 for the first subunit 41 formed by the first to fourth warps 11 to 14. The paper making surface side wefts 3A and 3C and the one traveling surface side weft 3B) are arranged so as to be shifted to one side (upper side in FIG. 1) along the length direction. The third subunit 43 formed by the first to fourth warps 19 to 22 has two sets of wefts (four paper-making side wefts 3A, 3C and two The running surface side wefts 3B) are arranged shifted to one side along the length direction. The fourth subunit 44 formed by the first to fourth warps 23 to 26 has three sets of wefts (six papermaking surface side wefts 3A, 3C and three pieces of the first subunit 41). The running surface side wefts 3B) are arranged shifted to one side along the length direction. The texture of the second to fourth subunits 42, 43, 44 is the same as the texture of the subunit 41. Also in the second to fourth subunits 42 to 44, a first region 46 and a second region 47 that are equally divided into two in the longitudinal direction (length direction) of the warp are formed. The first region 46 and the second region 47 in each of the subunits 41 to 44 are arranged so as to be shifted in the height direction in the same manner as the units 41 to 44.

  A structure (complete structure) 48 as a repeating unit including the subunits 41 to 44 is formed by the warps 11 to 26 and the four sets of wefts 31 to 34. The paper making wire 1 is formed by the structure 48 being repeatedly formed continuously in the length direction and the width direction.

  FIG. 3 is a view of the papermaking wire according to the first embodiment when viewed from the traveling surface side, and the papermaking surface side weft is omitted. As shown in FIG. 3, the running surface side weft 31B passes through the running surface side of the first to fourth warps 15-18 of the second subunit 42 (and the first warp 19 of the third subunit 43). The fourth subunit 44 passes through the running surface side of the first to fourth warps 23 to 26 (and the fourth warp 22 of the third subunit 43). Therefore, in the part where the first warp 11 and the fourth warp 14 pass the running surface side of the running surface side weft 31B, the first warp 11 and the fourth warp 14 are pushed by the running surface side weft 31B and the second warp 12 is pushed. And it approaches to the 3rd warp 13 side. Thereby, the knuckle part formed by weaving the first warp 11 in the running surface side weft 31B and the knuckle part formed by weaving the second warp 12 in the running surface side weft 33B They are arranged on a straight line parallel to the extending direction. Similarly, the knuckle portion formed by weaving the fourth warp yarn 14 in the running surface side weft 31B and the knuckle portion formed by weaving the third warp yarn 13 in the running surface side weft 33B are similarly extended. It is arranged on a straight line parallel to the current direction.

  In the papermaking wire 1, the first warp and the second warp of each of the subunits 41 to 44 are woven together so as to form a continuous structure on the running surface side weft 3B by cooperating with each other. The wefts 3A and 3C are woven so as to form a continuous 1/3 structure. Similarly, the fourth warp and the third warp of each subunit 41 to 44 are woven so as to form a continuous structure on the running surface side weft 3B by cooperating with each other, and the paper surface weft 3A, It is woven to form a 1/3 continuous structure in 3C.

  By the arrangement of the knuckle portions as described above, the arrangement pattern of the knuckle portions is not inclined with respect to the extending direction of the warps 2. For this reason, the papermaking wire 1 has improved straight running performance and improved running stability. In addition, the papermaking wire 1 is less likely to be displaced in a direction inclined with respect to the extending direction of the warp yarns 2, so that clogging is suppressed and dimensional stability is improved.

  Further, when the warp yarn 2 passes through the papermaking surface side of the papermaking surface side wefts 3A and 3C, the yarns 3A and 3C are continuously passed so as to pass through the papermaking surface side of the single papermaking surface side wefts 3A and 3C. Since the papermaking surface side wefts 3A and 3C are arranged on the papermaking surface side, the smoothness of the papermaking surface is improved.

(Second Embodiment)
The papermaking wire 50 according to the second embodiment has a woven structure different from that of the papermaking wire 1 according to the first embodiment, and other configurations are the same.

  4 is a view of the papermaking wire according to the second embodiment as viewed from the paper-making surface side, and FIG. 5 is (A) a sectional view taken along line 5A-5A in FIG. (C) 5C-5C sectional drawing of FIG. 4, (D) 5D-5D sectional drawing of FIG. As shown in FIGS. 4 and 5, in the papermaking wire 50, four warp yarns 2 and eight sets of weft yarns 3 arranged adjacent to each other are subunits 81, 82, 83, which are the smallest repeating units. 84 is formed. Since one set of wefts includes two papermaking surface side wefts 3A and 3C and one traveling surface side weft 3B, a total of 24 wefts are included in the subunit. The subunit 81 is formed by first to fourth warps 51 to 54 and first to eighth sets of wefts 71 to 78. The first subunit 81 is divided into two equal parts in the longitudinal direction (length direction) of the warp yarn 2, and the portions corresponding to the weft yarns 75, 76, 77, 78 correspond to the first region 86, the weft yarns 71, 72, 73, 74. A portion to be used is a second region 87.

  The first warp 51 arranged at one end in the width direction in the subunit 81 passes through the traveling surface side of the traveling surface side wefts 75B and 77B in the first region 86 when paying attention to the woven structure with the traveling surface side weft 3B. However, it passes through the papermaking surface side of the other traveling surface side wefts 3B including both sides. The first warp 51 forms a flat structure with the running surface side weft 3 </ b> B in the first region 86.

  When the first warp 51 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, it passes through the papermaking surface side of the papermaking surface side wefts 71A, 73A in the second region 87, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The first warp 51 is woven into the running surface side wefts 3B in the first region 86, and is woven into the papermaking surface side wefts 3A, 3C in the second region 87.

  The fourth warp 54 arranged at the other end in the width direction in the sub-unit 81 pays attention to the weave structure with the running surface side weft 3B, and the running surface side of the running surface side wefts 75B and 77B in the first region 86. Passing through the paper-making surface side of the other traveling surface side wefts 3B including both of them. The fourth warp 54 forms a flat structure with the running surface side weft 3B in the first region 86.

  When the fourth warp 54 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, it passes through the papermaking surface side of the papermaking surface side wefts 71C, 73C in the second region 87, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The fourth warp 54 is woven into the running surface side weft 3B in the first region 86, and is woven into the paper-making surface side wefts 3A, 3C in the second region 87.

  In the sub-unit 81, the first warp 51 and the fourth warp 54 form a plain structure having the same shape as the running surface side weft 3B in the first region 86, and form the same set in the second region 87. It is woven into 3A and 3C. Thereby, in the subunit 81, the length of the 1st warp 51 and the 4th warp 54 becomes the same.

  The second warp 52 arranged on one of the inner sides in the width direction in the sub-unit 81 pays attention to the woven structure with the running surface side weft 3B, and the running surface side of the running surface side wefts 71B and 73B in the second region 87. And the other traveling surface side wefts 3B including both sides of them pass through the papermaking surface side. In the second region 87, the second warp 52 forms a flat structure with the running surface side weft 3B.

  When paying attention to the woven structure with the papermaking surface side wefts 3A and 3C, the second warp yarn 52 passes through the papermaking surface side of the papermaking surface side wefts 75A and 77A in the first region 86, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The second warp 52 is woven into the running surface side weft 3B in the second region 87, and is woven into the paper-making surface side weft 3A, 3C in the first region 86.

  The third warp 53 arranged on the other inner side in the width direction in the sub unit 81 pays attention to the woven structure with the running surface side weft 3B, and the running surface side of the running surface side wefts 71B and 73B in the second region 87. And the other traveling surface side wefts 3B including both sides of them pass through the papermaking surface side. The third warp 53 forms a flat structure with the running surface side weft 3 </ b> B in the second region 87.

  When paying attention to the woven structure of the papermaking surface side wefts 3A and 3C, the third warp 53 passes through the papermaking surface side of the papermaking surface side wefts 75C and 77C in the first region 86, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The third warp 53 is woven into the running surface side weft 3B in the second region 87, and is woven into the papermaking surface side wefts 3A, 3C in the first region 86.

  In the subunit 81, the second warp 52 and the third warp 53 form a plain structure of the same shape as the traveling surface side weft 3B in the second region 87, and form the same set in the first region 86. It is woven into 3A and 3C. Thereby, in the subunit 81, the length of the 2nd warp 52 and the 3rd warp 53 becomes the same.

  In the first region 86, the first warp 51 and the fourth warp 54 are woven in a plane structure on the running surface side wefts 75B and 77B, and the second warp 52 and the third warp 53 are paired with the running surface side wefts 75B and 77B. It is woven into the papermaking side wefts 75A, 75C, 77A and 77C. On the other hand, in the second region 87, the second warp 52 and the third warp 53 are woven into the running surface side wefts 71B and 73B in a plain structure, and the first warp 51 and the fourth warp 54 are the running surface side wefts 71B and 73B. The papermaking surface side wefts 71A, 71C, 73A and 73C forming the set are woven. Thus, the set of wefts in which the first warp 51 and the fourth warp 54 are woven coincides with the set of wefts in which the second warp 52 and the third warp 53 are woven.

  The second subunit 82 formed by the first to fourth warps 55 to 58 has three sets of wefts (6 to the first subunit 81 formed by the first to fourth warps 51 to 54. The paper-making surface side wefts 3A and 3C and the three traveling surface-side wefts 3B) are arranged so as to be shifted to one side (upper side in FIG. 4) along the length direction. The third subunit 83 formed by the first to fourth warps 59 to 62 has two sets of wefts (four paper-making side wefts 3A, 3C and two The running surface side wefts 3B) are arranged shifted to one side along the length direction. The fourth subunit 84 formed by the first to fourth warps 63 to 66 has five sets of wefts (10 paper-making side wefts 3A, 3C, and 5 pieces of the first subunit 81). The running surface side wefts 3B) are arranged shifted to one side along the length direction. The texture of the second to fourth subunits 82, 83, 84 is the same as the texture of the subunit 81.

  A structure 88 as a repeating unit including the subunits 81 to 84 is formed by the warps 51 to 66 and the eight sets of wefts 71 to 78. This tissue 88 is repeatedly formed in the length direction and the width direction, whereby the papermaking wire 50 is formed.

  FIG. 6 is a view of the papermaking wire according to the second embodiment as viewed from the traveling surface side, and the papermaking surface side weft is omitted. As shown in FIG. 6, the running surface side wefts 75B and 77B pass the running surface side of the first to fourth warps 55 to 58 of the second subunit (and the first warp 59 of the third subunit 83). In addition, the first to fourth warps 63 to 66 (and the fourth warp 62 of the third subunit 83) of the fourth subunit pass through the running surface side. Therefore, in the portion where the first warp 51 and the fourth warp 54 pass the traveling surface side of the traveling surface side wefts 75B and 77B, the first warp 51 and the fourth warp 54 are pushed by the traveling surface side wefts 75B and 77B. The second warp 52 and the third warp 53 are approached. Thereby, the knuckle part formed by weaving the first warp 51 in the running surface side wefts 75B and 77B, and the knuckle part formed by weaving the second warp 52 in the running surface side wefts 71B and 73B. Are arranged on a straight line parallel to the extending direction of the warp 2. A straight line formed by the first warp 51 and the running surface side weft 3B and a flat structure formed by the second warp 52 and the running surface side weft 3B are parallel to the extending direction of the warp 2 It becomes the form arranged in the top. Similarly, the knuckle portion formed by weaving the fourth warp yarn 54 on the running surface side wefts 75B and 77B and the knuckle portion formed by weaving the third warp yarn 53 on the running surface side weft yarns 71B and 73B are the same. It arrange | positions on the straight line parallel to the extension direction of the warp 2, and becomes a form where the flat structure | tissue was located in a line.

  In the papermaking wire 50, the first warp and the second warp of each of the subunits 81 to 84 are woven together so as to form a flat structure continuous with the running surface side weft 3B. The wefts 3A and 3C are woven so as to form a continuous 1/3 structure. Similarly, the 4th warp and the 3rd warp of each subunit 81-84 are woven so as to form a continuous structure on the running surface side weft 3B by cooperating with each other, and the paper surface side weft 3A, It is woven to form a 1/3 continuous structure in 3C.

  By the arrangement of the knuckle portions as described above, the arrangement pattern of the knuckle portions is not inclined with respect to the extending direction of the warps 2. For this reason, the papermaking wire 50 improves the straight traveling performance during traveling and improves traveling stability. In addition, the papermaking wire 50 is less likely to be displaced in a direction inclined with respect to the extending direction of the warp yarns 2, so that clogging is suppressed and dimensional stability is improved.

(Third embodiment)
The papermaking wire 100 according to the third embodiment has a woven structure different from that of the papermaking wire 1 according to the first embodiment, and other configurations are the same.

  7 is a view of the papermaking wire according to the third embodiment as viewed from the paper-making surface side, and FIG. 8 is (A) a sectional view taken along line 8A-8A in FIG. (C) 8C-8C sectional drawing of FIG. 7, (D) 8D-8D sectional drawing of FIG. As shown in FIGS. 7 and 8, in the papermaking wire 100, four warps 2 and 12 sets of wefts 3 arranged adjacent to each other are subunits 141, 142, 143, which are the smallest repeating units. 144 is formed. Since one set of wefts includes two papermaking surface side wefts 3A and 3C and one traveling surface side weft 3B, a total of 36 wefts are included in the subunit. The subunit 141 is formed by first to fourth warps 101 to 104 and first to twelfth sets of wefts 121 to 132. The first subunit 141 is divided into two equal parts in the longitudinal direction (length direction) of the warp yarn 2, and the portions corresponding to the weft yarns 131, 132, 121, 122, 123, 124 are the first region 146 and the weft yarns 125, 126, 127. , 128, 129, and 130 correspond to the second region 147.

  When the first warp 101 arranged at one end in the width direction in the subunit 141 is focused on the weave structure with the running surface side weft 3B, the running surface side of the running surface side wefts 131B, 121B, 123B in the first region 146. And the other traveling surface side wefts 3B including both sides of them pass through the papermaking surface side. In the first region 146, the first warp 101 forms a flat structure with the running surface side weft 3B.

  When paying attention to the woven structure with the papermaking surface side wefts 3A, 3C, the first warp 101 passes through the papermaking surface side of the papermaking surface side wefts 125A, 127A, 129A in the second region 147, and includes other sides including both of them. The paper surface side wefts 3A and 3C pass the running surface side. The first warp yarn 101 is woven into the running surface side wefts 3B in the first region 146, and is woven into the papermaking surface side wefts 3A, 3C in the second region 147.

  The fourth warp 104 arranged at the other end in the width direction in the sub-unit 141 pays attention to the woven structure with the running surface side weft 3B, and the running surface of the running surface side wefts 131B, 121B, 123B in the first region 146. Passes through the paper making surface side of the other traveling surface side wefts 3B including both sides thereof. In the first region 146, the fourth warp 104 forms a flat structure with the running surface side weft 3B.

  When paying attention to the woven structure with the papermaking surface side wefts 3A and 3C, the fourth warp 104 passes through the papermaking surface side of the papermaking surface side wefts 125C, 127C and 129C in the second region 147, and includes other sides including both of them. The paper surface side wefts 3A and 3C pass the running surface side. The fourth warp 104 is woven into the running surface side weft 3B in the first region 146, and is woven into the paper-making surface side wefts 3A and 3C in the second region 147.

  In the subunit 141, the first warp 101 and the fourth warp 104 form a plain structure of the same shape as the traveling surface side weft 3 </ b> B in the first region 146, and form the same set in the second region 147. It is woven into 3A and 3C. Thereby, in the subunit 141, the length of the 1st warp 101 and the 4th warp 104 becomes the same.

  The second warp yarn 102 arranged on the inner side in the width direction in the subunit 141 is focused on the weave structure with the running surface side weft 3B. In the second region 147, the running surface side wefts 125B, 127B, 129B It passes through the traveling surface side and passes through the paper making surface side of the other traveling surface side wefts 3B including both sides thereof. In the second region 147, the second warp 102 forms a flat structure with the running surface side weft 3B.

  When the second warp yarn 102 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, the second warp yarn 102 passes through the papermaking surface side of the papermaking surface side wefts 131A, 121A, 123A in the first region 146, and includes other sides including both of them. The paper surface side wefts 3A and 3C pass the running surface side. The second warp yarn 102 is woven into the running surface side wefts 3B in the second region 147, and is woven into the papermaking surface side wefts 3A, 3C in the first region 146.

  The third warp 103 arranged on the other inner side in the width direction in the subunit 141 is focused on the weave structure with the running surface side weft 3B. In the second region 147, the running surface side wefts 125B, 127B, 129B It passes through the paper-making surface side and passes through the traveling surface side of the other traveling surface-side wefts 3B including both sides thereof. In the second region 147, the third warp 103 forms a flat structure with the running surface side weft 3B.

  When the third warp 103 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, it passes through the papermaking surface side of the papermaking surface side wefts 131C, 121C, 123C in the first region 146, and includes other sides including both of them. The paper surface side wefts 3A and 3C pass the running surface side. The third warp yarn 103 is woven into the running surface side wefts 3B in the second region 147, and is woven into the papermaking surface side wefts 3A, 3C in the first region 146.

  In the subunit 141, the second warp yarn 102 and the third warp yarn 103 are woven into the same running surface side weft 3B in the second region 147, and are woven into the papermaking surface side wefts 3A and 3C forming the same set in the first region 146. It is. Thereby, in the subunit 141, the length of the 2nd warp yarn 102 and the 3rd warp yarn 103 becomes the same.

  In the first region 146, the first warp 101 and the fourth warp 104 are woven into the running surface side wefts 131B, 121B, 123B in a plain structure, and the second warp 102 and the third warp 103 are the running surface side wefts 131B, 121B, The paper surface side wefts 131A, 131C, 121A, 121C, 123A, 123C forming a pair with 123B are woven. On the other hand, in the second region 147, the second warp yarn 102 and the third warp yarn 103 are woven into the running surface side wefts 125B, 127B, 129B in a plain structure, and the first warp yarn 101 and the fourth warp yarn 104 are the running surface side weft yarns 125B, The paper surface side wefts 125A, 125C, 127A, 127C, 129A, and 129C forming a pair with 127B and 129B are woven. Thus, the set of wefts in which the first warp 101 and the fourth warp 104 are woven coincides with the set of wefts in which the second warp 102 and the third warp 103 are woven.

  The second subunit 142 formed by the first to fourth warps 105 to 108 has three sets of wefts (6) with respect to the first subunit 141 formed by the first to fourth warps 101 to 104. The paper-making surface side wefts 3A and 3C and the three traveling surface-side wefts 3B) are arranged so as to be shifted to one side (upper side in FIG. 7) along the length direction. The third subunit 143 formed by the first to fourth warps 109 to 112 has six sets of wefts (12 paper surface side wefts 3A, 3C, and 6 pieces of the first subunit 141). The running surface side wefts 3B) are arranged shifted to one side along the length direction. The fourth subunit 144 formed by the first to fourth warp yarns 113 to 116 has nine sets of weft yarns (18 paper-making side weft yarns 3A, 3C, and nine yarns) with respect to the first subunit 141. The running surface side wefts 3B) are arranged shifted to one side along the length direction. The texture of the second to fourth subunits 142, 143, 144 is the same as the texture of the subunit 141.

  The warp yarns 101 to 116 and the eight sets of weft yarns 121 to 132 form a structure 148 as a repeating unit including the subunits 141 to 144. This tissue 148 is repeatedly formed in the length direction and the width direction, whereby the papermaking wire 100 is formed.

  FIG. 9 is a view of the papermaking wire according to the third embodiment as viewed from the running surface side, and the papermaking surface side weft is omitted. As shown in FIG. 9, the running surface side wefts 131B, 121B, and 123B are the running surfaces of the first to fourth warps 105 to 108 of the second subunit 142 (and the first warp 109 of the third subunit 143). The first and fourth warps 113 to 116 of the fourth subunit (and the fourth warp 112 of the third subunit 143). Therefore, in the portion where the first warp 101 and the fourth warp 104 pass the traveling surface side of the traveling surface side wefts 131B, 121B, 123B, the first warp 101 and the first warp 101B are pushed by the traveling surface side wefts 131B, 121B, 123B. The fourth warp 104 approaches the second warp 102 and the third warp 103 side. As a result, the knuckle portion formed by weaving the first warp yarn 101 on the running surface side wefts 131B, 121B, 123B and the second warp yarn 102 are formed by weaving on the running surface side wefts 125B, 127B, 129B. The knuckle portion is arranged on a straight line parallel to the extending direction of the warp yarn 2. In other words, the flat structure formed by the first warp 101 and the running surface side weft 3B and the flat structure formed by the second warp 102 and the running surface side weft 3B are parallel to the extending direction of the warp 2. It will be in the form of a line on two straight lines. The same applies to the third warp 103 and the fourth warp 104.

  In the papermaking wire 100, the first warp and the second warp of each of the subunits 141 to 144 are woven together so as to form a continuous structure on the running surface side weft 3B. The wefts 3A and 3C are woven so as to form a continuous 1/3 structure. Similarly, the fourth warp and the third warp of each subunit 141 to 144 are woven so as to form a continuous structure on the running surface side weft 3B by cooperating with each other, and the paper surface side weft 3A, It is woven to form a 1/3 continuous structure in 3C.

  By the arrangement of the knuckle portions as described above, the arrangement pattern of the knuckle portions is not inclined with respect to the extending direction of the warps 2. For this reason, the papermaking wire 100 has improved straight travel performance during travel, and travel stability is improved. In addition, the papermaking wire 100 is less likely to be displaced in a direction inclined with respect to the extending direction of the warp yarns 2, so that clogging is suppressed and dimensional stability is improved.

(Fourth embodiment)
The papermaking wire 150 according to the fourth embodiment has a woven structure different from that of the papermaking wire 1 according to the first embodiment, and other configurations are the same.

  FIG. 10 is a view of the papermaking wire according to the fourth embodiment as viewed from the papermaking surface side. FIG. 11 is (A) a cross-sectional view taken along 11A-11A in FIG. 10, and (B) a cross-sectional view taken along 11B-11B in FIG. (C) 11C-11C sectional view of FIG. 10, (D) 11D-11D sectional view of FIG. As shown in FIGS. 10 and 11, in the papermaking wire 150, four warp yarns 2 and eight sets of weft yarns 3 arranged adjacent to each other are subunits 181, 182, 183, 184 is formed. Since one set of wefts includes two papermaking surface side wefts 3A and 3C and one traveling surface side weft 3B, a total of 24 wefts are included in the subunit. The subunit 181 is formed by first to fourth warps 151 to 154 and first to eighth sets of wefts 171 to 178. The first subunit 181 is divided into two equal parts in the longitudinal direction (length direction) of the warp yarn 2, and the portions corresponding to the weft yarns 175, 176, 177, 178 correspond to the first region 186 and the weft yarns 171, 172, 173, 174. The part to be made is a second region 187.

  The first warp 151 arranged at one end in the width direction in the subunit 181 passes through the traveling surface side of the traveling surface side weft 177B in the first region 186 when paying attention to the woven structure with the traveling surface side weft 3B. It passes through the paper-making surface side of the other traveling surface-side wefts 3B including both adjacent sides.

  When the first warp 151 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, it passes through the papermaking surface side of the papermaking surface side wefts 172C, 174C in the second region 187, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The first warp 151 is woven into the running surface side weft 3B in the first region 186, and is woven into the papermaking surface side weft 3A, 3C in the second region 187.

  The fourth warp 154 arranged at the other end in the width direction in the subunit 181 passes through the traveling surface side of the traveling surface side weft 177B in the first region 186 when paying attention to the woven structure with the traveling surface side weft 3B. , Passing through the paper making surface side of the other running surface side wefts 3B including both of them.

  When the fourth warp 154 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, it passes through the papermaking surface side of the papermaking surface side wefts 172A, 174A in the second region 187, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The fourth warp 154 is woven into the running surface side weft 3B in the first region 186, and is woven into the paper-making surface side wefts 3A and 3C in the second region 187.

  In the subunit 181, the first warp 151 and the fourth warp 154 are woven into the same running surface side weft 3 </ b> B in the first region 186 and woven into the papermaking surface side wefts 3 </ b> A and 3 </ b> C forming the same set in the second region 187. It is. Thereby, in the subunit 181, the length of the 1st warp 151 and the 4th warp 154 becomes the same.

  The second warp 152 arranged on the inner side in the width direction in the subunit 181 pays attention to the woven structure with the running surface side weft 3B, and the running surface side of the running surface side weft 173B in the second region 187. Passing through the paper-making surface side of the other traveling surface side wefts 3B including both of them.

  When paying attention to the woven structure of the second warp yarns 3A and 3C, the second warp yarn 152 passes through the paper making surface side of the paper making surface side wefts 176C and 178C in the first region 186, and other paper making surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The second warp 152 is woven into the running surface side weft 3B in the second region 187, and is woven into the papermaking surface side weft 3A, 3C in the first region 186.

  When the third warp 153 arranged on the other side in the width direction in the subunit 181 pays attention to the woven structure with the running surface side weft 3B, the running surface side of the running surface side weft 173B in the second region 187 Passing through the paper-making surface side of the other traveling surface side wefts 3B including both of them.

  When the third warp 153 pays attention to the woven structure with the papermaking surface side wefts 3A, 3C, it passes through the papermaking surface side of the papermaking surface side wefts 176A, 178A in the first region 186, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side wefts 3A, 3C. The third warp 153 is woven into the running surface side weft 3B in the second region 187, and is woven into the paper surface side weft 3A, 3C in the first region 186.

  In the subunit 181, the second warp 152 and the third warp 153 are woven into the same running surface side weft 3B in the second region 187, and are woven into the papermaking surface side wefts 3A and 3C forming the same set in the first region 186. It is. Accordingly, the lengths of the second warp 152 and the third warp 153 are the same in the subunit 181.

  In the first region 186, the first warp 151 and the fourth warp 154 are woven into the running surface side weft 177B, and the second warp 152 and the third warp 153 are not paired with the running surface side weft 177B. 176C, 178A, 178C. On the other hand, in the second region 187, the second warp 152 and the third warp 153 are woven into the running surface side weft 173B, and the first warp 151 and the fourth warp 154 do not form a pair with the running surface side weft 173B. Weaved in wefts 172A, 172C, 174A, 174C. Thus, the set of wefts in which the first warp 151 and the fourth warp 154 are woven does not match the set of wefts in which the second warp 152 and the third warp 153 are woven.

  The second subunit 182 formed by the first to fourth warps 155 to 158 has a set of wefts (2 for the first subunit 181 formed by the first to fourth warps 151 to 154. The paper-making surface side wefts 3A, 3C and the one traveling surface-side weft 3B) are arranged so as to be shifted to one side (upper side in FIG. 10) along the length direction. The third subunit 183 formed by the first to fourth warps 159 to 162 has six sets of wefts (12 paper-making side wefts 3A, 3C and six papers on the first subunit 181). The running surface side wefts 3B) are arranged shifted to one side along the length direction. The fourth subunit 184 formed by the first to fourth warps 163 to 166 has seven sets of wefts (14 paper-making side wefts 3A, 3C and seven papers on the first subunit 181). The running surface side wefts 3B) are arranged shifted to one side along the length direction. The texture of the second to fourth subunits 182, 183, 184 is the same as the texture of the subunit 181.

  A structure 188 as a repeating unit including the subunits 181 to 184 is formed by the warps 151 to 166 and the eight sets of wefts 171 to 178. The tissue making 188 is repeatedly formed in the length direction and the width direction, whereby the papermaking wire 150 is formed.

  In the papermaking wire 150, the first warp and the second warp of each of the subunits 181 to 184 are woven together so as to form a continuous 3/1 weave on the running surface side weft 3B. The side wefts 3A and 3C are woven so as to form a continuous 1/3 structure. Similarly, the fourth warp and the third warp of each of the subunits 181 to 184 are woven so as to form a continuous 3/1 structure on the running surface side weft 3B by cooperating with each other, and the paper surface side weft is formed. It is woven to form a 1/3 continuous structure in 3A and 3C.

  FIG. 12 is a view of the papermaking wire according to the fourth embodiment as viewed from the traveling surface side, and the papermaking surface side weft is omitted. As shown in FIG. 12, the part where the first warp 151 and the fourth warp 154 pass the running surface side of the running surface side weft 177B is the same as the papermaking wires 1, 50, 100 of the first to third embodiments. In addition, the second warp 152 and the third warp 153 are approached. Thereby, the knuckle portion formed by weaving the first warp 151 and the second warp 152 into the running surface side weft 3B is aligned in the extending direction of the warp, and the third warp 153 and the fourth warp 154 are on the running surface side. Knuckles formed by weaving the weft 3B are arranged in the extending direction of the warp. By the arrangement of the knuckle portions as described above, the arrangement pattern of the knuckle portions is not inclined with respect to the extending direction of the warps 2. For this reason, the papermaking wire 150 improves the straightness during running and improves running stability. Further, since the papermaking wire 150 is less likely to be displaced in a direction inclined with respect to the extending direction of the warp yarn 2, width clogging is suppressed and dimensional stability is improved.

(Fifth embodiment)
The papermaking wire 200 according to the fifth embodiment has a woven structure different from that of the papermaking wire 1 according to the first embodiment. Further, the arrangement of the wefts 3 forming the set is different. Other configurations of the papermaking wire 200 are the same as those of the papermaking wire 1.

  FIG. 13 is a view of the papermaking wire according to the fifth embodiment as viewed from the paper-making surface side. FIG. 14 is (A) a cross-sectional view taken along line 14A-14A in FIG. 13, and (B) a cross-sectional view taken along 14B-14B in FIG. (C) 14C-14C sectional drawing of FIG. 13, (D) 14D-14D sectional drawing of FIG. As shown in FIGS. 13 and 14, in the papermaking wire 200, four warp yarns 2 and eight sets of weft yarns 3 arranged adjacent to each other are subunits 231, 232, 233, which are the smallest repeating units. 234 is formed. Since one set of wefts 3 includes one traveling surface side weft 3B and two papermaking surface side wefts 3A, 3C, a total of 24 wefts are included in the subunit. One set of wefts 3 is arranged in the order of the running surface side wefts 3B, the papermaking surface side wefts 3A, and the papermaking surface side wefts 3C in the length direction. The subunit 231 is formed by first to fourth warps 201 to 204 and first to eighth sets of wefts 221 to 228. The first subunit 231 is divided into two equal parts in the longitudinal direction (length direction) of the warp yarn 2, and the portions corresponding to the weft yarns 225, 226, 227, 228 correspond to the first region 236 and the weft yarns 221, 222, 223, 224. A portion to be made is a second region 237.

  The first warp 201 arranged at one end in the width direction in the subunit 231 passes the running surface side of the running surface side weft 227B in the first region 236 when paying attention to the weave structure with the running surface side weft 3B. It passes through the paper-making surface side of the other traveling surface-side wefts 3B including both adjacent sides.

  The first warp 201 passes through the papermaking side of the papermaking side wefts 221A, 222A, 223A, and 224A in the second region 237 when attention is paid to the woven structure with the papermaking side wefts 3A and 3C, and includes both sides thereof. The other papermaking side wefts 3A and 3C pass the running surface side. In the second region 237, the first warp 201 is woven into a plain structure on the papermaking surface side wefts 3A and 3C. The first warp 201 is woven into the running surface side weft 3B in the first region 236, and is woven into the paper-making surface side wefts 3A and 3C in the second region 237.

  The fourth warp 204 arranged at the other end in the width direction in the subunit 231 passes through the traveling surface side of the traveling surface side weft 227B in the first region 236 when paying attention to the weave structure with the traveling surface side weft 3B. , Passing through the paper making surface side of the other running surface side wefts 3B including both of them.

  When paying attention to the woven structure with the papermaking surface side wefts 3A, 3C, the fourth warp 204 passes through the papermaking surface side of the papermaking surface side wefts 221C, 222C, 223C, 224C in the second region 237, and includes both sides thereof. The other papermaking side wefts 3A and 3C pass the running surface side. In the second region 237, the fourth warp 204 is woven into a plain structure on the papermaking surface side wefts 3A and 3C. The fourth warp 204 is woven into the running surface side wefts 3B in the first region 236, and is woven into the papermaking surface side wefts 3A, 3C in the second region 237.

  In the subunit 231, the first warp 201 and the fourth warp 204 are woven into the same running surface side weft 3 </ b> B in the first region 236 and woven into the papermaking surface side wefts 3 </ b> A and 3 </ b> C forming the same set in the second region 237. It is. Thereby, in the subunit 231, the length of the 1st warp 201 and the 4th warp 204 becomes the same.

  When the second warp 202 arranged on the inner side in the width direction in the subunit 231 pays attention to the woven structure with the running surface side weft 3B, the running surface side of the running surface side weft 223B is arranged in the second region 237. Passing through the paper-making surface side of the other traveling surface side wefts 3B including both of them.

  When attention is paid to the woven structure with the papermaking surface side wefts 3A and 3C, the second warp 202 passes through the papermaking surface side of the papermaking surface side wefts 225A, 226A, 227A and 228A in the first region 236, and includes both sides thereof. The other papermaking side wefts 3A and 3C pass the running surface side. The second warp yarn 202 is woven into the running surface side weft 3B in the second region 237, and is woven into the paper-making surface side weft 3A, 3C in the first region 236.

  The third warp 203 arranged on the other side in the width direction in the subunit 231 pays attention to the woven structure with the running surface side weft 3B, and the running surface side of the running surface side weft 223B in the second region 237 Passing through the paper-making surface side of the other traveling surface side wefts 3B including both of them.

  When paying attention to the woven structure with the papermaking surface side wefts 3A and 3C, the third warp 203 passes through the papermaking surface side of the papermaking surface side wefts 225C, 226C, 227C and 228C in the first region 236, and includes both sides thereof. The other papermaking side wefts 3A and 3C pass the running surface side. The third warp 203 is woven into the running surface side weft 3B in the second region 237, and is woven into the papermaking surface side wefts 3A, 3C in the first region 236.

  In the subunit 231, the second warp 202 and the third warp 203 are woven into the same running surface side weft 3B in the second region 237 and woven into the papermaking surface side wefts 3A and 3C forming the same set in the first region 236. It is. Thereby, in the subunit 231, the length of the 2nd warp 202 and the 3rd warp 203 becomes the same.

  In the first region 236, the first warp 201 and the fourth warp 204 are woven into the running surface side weft 227B, and the second warp 202 and the third warp 203 are formed on the paper surface side wefts 225A to 228C so as to form a flat structure. It is woven. On the other hand, in the second region 237, the second warp yarn 202 and the third warp yarn 203 are woven into the running surface side weft yarn 223B, and the first warp yarn 201 and the fourth warp yarn 204 are formed on the paper surface side weft yarns 221A to 221B. It is woven into 224C.

  The second subunit 232 formed by the first to fourth warps 205 to 208 has a set of wefts (1 to the first subunit 231 formed by the first to fourth warps 201 to 204. The travel surface side wefts 3B and the two papermaking surface side wefts 3A, 3C) are shifted from one side (upper side in FIG. 13) along the length direction. The third subunit 233 formed by the first to fourth warps 209 to 212 has six sets of wefts (six running surface side wefts 3B and twelve papermaking surfaces) with respect to the first subunit 231. The side wefts 3A and 3C) are shifted to one side along the length direction. The fourth subunit 234 formed by the first to fourth warps 213 to 216 has seven sets of wefts (seven running surface side wefts 3B and 14 papermaking surfaces) with respect to the first subunit 231. The side wefts 3A and 3C) are shifted to one side along the length direction. The texture of the second to fourth subunits 232, 233, and 234 is the same as the texture of the subunit 231.

  A structure 238 as a repeating unit including the subunits 231 to 234 is formed by the warps 201 to 216 and the eight sets of wefts 221 to 228. This tissue 238 is repeatedly formed in the length direction and the width direction, whereby the papermaking wire 200 is formed.

  In the papermaking wire 200, the first warp and the second warp of each of the subunits 231 to 234 are woven together so as to form a continuous 3/1 structure on the running surface side weft 3B by cooperating with each other. The side wefts 3A and 3C are woven so as to form a continuous flat structure. Similarly, the fourth warp and the third warp of each of the subunits 231 to 234 are woven so as to form a continuous 3/1 structure on the running surface side weft 3B by cooperating with each other, and the paper surface side weft is formed. 3A and 3C are woven so as to form a continuous plain structure.

  FIG. 15 is a view of the papermaking wire according to the fifth embodiment when viewed from the traveling surface side, and the papermaking surface side weft is omitted. As shown in FIG. 15, the portions where the first warp 201 and the fourth warp 204 pass the running surface side of the running surface side weft 227B are the papermaking wires 1, 50, 100, 150 of the first to fourth embodiments. Similarly to the second warp 202 and the third warp 203 side. Thereby, the knuckle portion formed by weaving the first warp 201 and the second warp 202 into the running surface side weft 3B is aligned in the extending direction of the warp, and the third warp 203 and the fourth warp 204 are on the running surface side. Knuckles formed by weaving the weft 3B are arranged in the extending direction of the warp. By the arrangement of the knuckle portions as described above, the arrangement pattern of the knuckle portions is not inclined with respect to the extending direction of the warps 2. For this reason, the papermaking wire 200 improves the straightness during running and improves running stability. In addition, the papermaking wire 200 is less likely to be displaced in a direction inclined with respect to the extending direction of the warp yarn 2, so that clogging is suppressed and dimensional stability is improved.

(Sixth embodiment)
The papermaking wire 250 according to the sixth embodiment is different in woven structure from the papermaking wire 1 according to the first embodiment. Further, the number and arrangement of the wefts 303 forming a set are different. Other configurations of the papermaking wire 250 are the same as those of the papermaking wire 1.

  16 is a view of the papermaking wire according to the sixth embodiment as viewed from the papermaking surface side, and FIG. 17 is (A) a sectional view taken along 17A-17A in FIG. 16, (B) a sectional view taken along 17B-17B in FIG. (C) 17C-17C sectional drawing of FIG. 16, (D) 17D-17D sectional drawing of FIG. As shown in FIGS. 16 and 17, in the papermaking wire 250, four warps 2 and four sets of wefts 303 arranged adjacent to each other form subunits 281, 282, 283, and 284. Since one set of weft 303 includes three papermaking surface side wefts 303A and two traveling surface side wefts 303B, a subunit including four sets of wefts 303 includes a total of 20 wefts. .

  One set of wefts 303 is arranged in the order of the papermaking surface side wefts 303A, the traveling surface side wefts 303B, the papermaking surface side wefts 303A, the papermaking surface side wefts 303A, and the traveling surface side wefts 303B from the lower side in the length direction. . The relative position between the running surface side weft 303B and the papermaking surface side weft 303A can be changed in the extending direction of the warp yarn 2. For example, in the set, the papermaking surface side weft 303A, the running surface side weft 303B, and the papermaking surface. The side weft 303A, the traveling surface side weft 303B, and the papermaking surface side weft 303A may be changed in this order. The subunit 281 is formed by first to fourth warps 251 to 254 and first to fourth sets of wefts 271 to 274. The first subunit 281 is divided into two equal parts in the longitudinal direction (length direction) of the warp yarn 2, and the portions corresponding to the two sets of weft yarns 273 and 274 are the portions corresponding to the first region 286 and the two sets of weft yarns 271 and 272. Is a second region 287.

  The first warp 251 disposed at one end in the width direction in the subunit 281 passes through the traveling surface side of the traveling surface side weft 273E in the first region 286 when paying attention to the woven structure with the traveling surface side weft 303B, The other running surface side wefts 303B including both of them pass the paper making surface side. That is, the first warp 251 is woven into the running surface side weft 303B so as to form a 3/1 structure in the first region 286.

  When the first warp 251 pays attention to the woven structure with the papermaking surface side weft 303A, it passes through the papermaking surface side of the papermaking surface side wefts 271C, 272A, 272D in the second region 287, and other papermaking surfaces including both sides thereof. It passes the running surface side of the side weft 303A. In the second region 287, the first warp 251 is woven into a plain structure on the paper surface side weft 303A. The first warp 251 is woven so as to form a 3/1 structure in the running surface side weft 303B in the first region 286, and is woven so as to form a flat structure in the paper surface side weft 303A in the second region 287. .

  The fourth warp 254 arranged at the other end in the width direction in the subunit 281 passes through the traveling surface side of the traveling surface side weft 273E in the first region 286 when paying attention to the woven structure with the traveling surface side weft 303B. , Passing through the papermaking surface side of the other running surface side weft 303B including both of them. That is, the fourth warp 254 is woven into the running surface side weft 303B so as to form a 3/1 structure in the first region 286.

  When paying attention to the woven structure with the weft 303A on the paper surface side, the fourth warp 254 passes through the paper surface side of the paper surface side wefts 271A, 271D, and 272C in the second region 287, and other paper surfaces including both sides thereof. It passes the running surface side of the side weft 303A. In the second region 287, the fourth warp 254 is woven into a plain structure on the paper surface side weft 303A. The fourth warp 254 is woven so as to form a 3/1 structure in the running surface side weft 303B in the first region 286, and is woven so as to form a flat structure in the paper surface side weft 303A in the second region 287. .

  In the subunit 281, the first warp 251 and the fourth warp 254 are woven into the same running surface side weft 303 B (273 E) in the first region 286 to form a 3/1 structure, and different papermaking surfaces in the second region 287. The side weft 303A is woven so as to form a flat structure. Thereby, in the subunit 281, the lengths of the first warp 251 and the fourth warp 254 are the same.

  The second warp 252 arranged on the inner side in the width direction in the subunit 281 is focused on the running surface side of the running surface side weft 271E in the second region 287 when paying attention to the woven structure with the running surface side weft 303B. Passing and passing the paper-making surface side of the other running surface side weft 303B including both of them. That is, the second warp 252 is woven into the running surface side weft 303B so as to form a 3/1 structure in the second region 287.

  When the second warp 252 pays attention to the woven structure with the paper-making side weft 303A, it passes through the paper-making side of the paper-making side wefts 273C, 274A, 274D in the first region 286, and other paper-making surfaces including both sides thereof. It passes the running surface side of the side weft 303A. In the first region 286, the second warp 252 is woven into a plain structure on the paper-making surface side weft 303A. The second warp 252 is woven so as to form a 3/1 structure in the running surface side weft 303B in the second region 287, and is woven so as to form a flat structure in the paper surface side weft 303A in the first region 286. .

  The third warp 253 arranged on the other inner side in the width direction in the sub-unit 281 pays attention to the woven structure with the running surface side weft 303B, and the running surface side of the running surface side weft 271E in the second region 287. Passing and passing the paper-making surface side of the other running surface side weft 303B including both of them. That is, the third warp 253 is woven into the running surface side weft 303B so as to form a 3/1 structure in the second region 287.

  When paying attention to the woven structure of the third warp 253 with the paper-making side weft 303A, the first warp 273A, 273D, and 274C pass through the paper-making side of the paper-making side wefts 273A, 273D, and 274C in the first region 286. It passes the running surface side of the side weft 303A. In the first region 286, the third warp 253 is woven into a plain structure on the papermaking surface side weft 303A. The third warp 253 is woven so as to form a 3/1 structure in the running surface side weft 303B in the second region 287, and is woven so as to form a flat structure in the paper surface side weft 303A in the first region 286. .

  In the subunit 281, the second warp 252 and the third warp 253 are woven so as to form a 3/1 structure on the same running surface side weft 303 </ b> B (271 </ b> E) in the second region 287, and are different in the first region 286. The papermaking surface side weft 303A is woven so as to form a plain structure. Thereby, in the subunit 281, the lengths of the second warp 252 and the third warp 253 are the same.

  In the first region 286, the first warp 251 and the fourth warp 254 are woven into the running surface side weft 303B so as to form a 3/1 structure, and the second warp 252 and the third warp 253 form a flat structure. Are woven into the papermaking surface side weft 303A. On the other hand, in the second region 287, the second warp 252 and the third warp 253 are woven into the running surface side weft 303B so as to form a 3/1 structure, and the first warp 251 and the fourth warp 254 form a flat structure. Thus, it is woven into the papermaking surface side weft 303A.

  The second subunit 282 formed by the first to fourth warps 255 to 258 has three sets of wefts (6 in comparison to the first subunit 281 formed by the first to fourth warps 251 to 254. The travel surface side wefts 303B and the nine papermaking surface side wefts 303A) are arranged so as to be shifted to one side (upper side in FIG. 16) along the length direction. The third subunit 283 formed by the first to fourth warps 259 to 262 has 2.4 sets of weft yarns (five running surface side wefts 303B and seven yarns) with respect to the first subunit 281. The paper-making surface side wefts 303A) are arranged so as to be shifted to one side along the length direction. The fourth subunit 284 formed by the first to fourth warps 263 to 266 has 1.4 sets of wefts (three running surface side wefts 303B and four yarns) with respect to the first subunit 281. The paper-making surface side wefts 303A) are arranged so as to be shifted to one side along the length direction.

  The texture of the second to fourth subunits 282, 283, 284 is substantially the same as the texture of the subunit 281. In each of the subunits 281 to 284, the first warp and the fourth warp are woven into the running surface side weft 303B in the first region 286, and are woven into the paper-making surface side weft 303A in the second region 287. In each of the subunits 281 to 284, the second warp and the third warp are woven into the running surface side weft 303B in the second region 287, and are woven into the paper surface side weft 303A in the first region 286. In each of the subunits 281 to 284, the relative position between the portion where the first and fourth warps are woven into the traveling surface side weft 303B and the portion where the second and third warps are woven into the traveling surface side weft 303B is It is constant. In each of the subunits 281 to 284, the relative position between the portion where the first warp is woven into the papermaking surface side weft 303A and the portion where the second warp is woven into the papermaking surface side weft 303A is constant. In each of the subunits 281 to 284, the relative position between the portion where the fourth warp is woven into the papermaking surface side weft 303A and the portion where the third warp is woven into the papermaking surface side weft 303A is constant.

  A structure 288 as a repeating unit including the subunits 281 to 284 is formed by the warps 251 to 266 and the four sets of wefts 271 to 274. In the structure 288, all the wefts including the papermaking surface side weft 303A and the traveling surface side weft 303B are woven into any of the warp yarns 251 to 266 at least at one place. This tissue 288 is repeatedly formed in the length direction and the width direction, whereby the papermaking wire 250 is formed.

  FIG. 18 is a view of the papermaking wire 250 according to the sixth embodiment as viewed from the traveling surface side, and the papermaking surface side weft 303A is omitted. As shown in FIG. 18, the portions where the first warp 251 and the fourth warp 254 pass the running surface side of the running surface side weft 273E are the papermaking wires 1, 50, 100, 150 of the first to fifth embodiments. , 200, the second warp 252 and the third warp 253 are approached. As a result, the knuckle portion formed by weaving the first warp 251 and the second warp 252 into the running surface side weft 303B is aligned in the extending direction of the warp, and the third warp 253 and the fourth warp 254 are on the running surface side. Knuckles formed by weaving the weft 303B are arranged in the direction in which the warp extends. By the arrangement of the knuckle portions as described above, the arrangement pattern of the knuckle portions is not inclined with respect to the extending direction of the warps 2. Therefore, the papermaking wire 250 is improved in straightness during traveling and traveling stability is improved. In addition, the papermaking wire 250 is less likely to be displaced in a direction inclined with respect to the extending direction of the warp yarn 2, so that clogging is suppressed and dimensional stability is improved.

  In the papermaking wire 250, the first warp and the second warp of each of the subunits 281 to 284 are woven so as to form a continuous 3/1 structure on the running surface side weft 303B by cooperating with each other. The surface side wefts 303A are woven so as to form a continuous flat structure. Similarly, the fourth warp and the third warp of each subunit cooperate with each other to be woven so as to form a continuous 3/1 structure on the running surface side weft 303B, and continue to the paper surface side weft 303A. Interwoven to form a flat structure.

  Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified. In each of the above embodiments, the example in which the woven fabric according to the present invention is applied to a papermaking wire has been described. However, it can be naturally used for other uses such as a transport belt and a filter cloth.

  In the first to fourth embodiments, the traveling surface side wefts 3B are arranged between the paper surface wefts 3A and 3C as viewed from the direction facing the papermaking surface of the papermaking wire. Although the surface-side weft 3B is arranged on the side opposite to the paper-making surface-side weft 3C side of the paper-making surface-side weft 3A, in other embodiments, the traveling surface-side weft 3B is the paper-making surface-side weft 3A or the paper-making surface. A configuration in which the side weft 3C overlaps with the traveling surface side or a configuration in which the traveling surface side weft 3B is disposed on the side opposite to the paper surface side weft 3A side of the paper making surface side weft 3C may be adopted. In this way, the arrangement of the papermaking surface side wefts 3A and 3C and the traveling surface side wefts 3B forming a pair can be arbitrarily selected. Further, the arrangement of the papermaking surface side wefts 3A and 3C and the traveling surface side wefts 3B forming a set may change depending on the tension in the length direction during use. For example, when the traveling surface side weft 3B is arranged so as to overlap the traveling surface side of the papermaking surface side weft 3A or the papermaking surface side weft 3C, the traveling surface side weft 3B of the papermaking surface side wefts 3A, 3C is caused by tension. May move in between.

  In each of the above embodiments, each subunit is composed of four warps 2 and 4 sets (12, 20), 8 sets (24), or 12 sets (36) wefts 3. ing. That is, wefts 3 that are integer multiples of 4 are included in the subunit. In another embodiment, the subunit is preferably composed of four warp yarns 2 and an integer multiple of 4 weft yarns 3.

  In each of the above-described embodiments, as an example of the wefts that form a pair, a set of two papermaking surface side wefts and one traveling surface side weft, three papermaking surface side wefts, and two traveling surface side wefts I explained a set consisting of The number of wefts constituting the group can be appropriately changed within the range of 1/2 to 2/3 of the number of papermaking side wefts with respect to the number of papermaking side wefts. Or a pair of seven papermaking surface side wefts and four traveling surface side wefts.

1, 50, 100, 150, 200, 250 ... papermaking wire,
2 ... warp,
3, 303 ... weft,
3A, 3C, 303A ... Weft on the paper side
3B, 303B ... running surface side weft,
11, 51, 101, 151, 201, 251 ... first warp,
12, 52, 102, 152, 202, 252 ... second warp,
13, 53, 103, 153, 203, 253 ... third warp,
14, 54, 104, 154, 204, 254 ... fourth warp,
41, 81, 141, 181, 231, 281 ... first subunit,
42, 82, 142, 182, 232, 282 ... second subunit,
43, 83, 143, 183, 233, 283 ... third subunit,
44, 84, 144, 184, 234, 284 ... fourth subunit,
46, 86, 146, 186, 236, 286 ... 1st area | region,
47, 87, 147, 187, 237, 287 ... second region,
48, 88, 148, 188, 238, 288 ... Organization

Claims (10)

A weft including an arbitrary number of paper surface side wefts and a traveling surface side weft of 1/2 to 2/3 of the paper surface side wefts as a set, and is woven into the traveling surface side wefts and the paper surface side wefts. A papermaking fabric having a warp
Four warps and a plurality of sets of wefts form a subunit,
The first and fourth warps arranged at both ends in the subunit pass below the common first traveling surface side weft in the traveling surface side weft and above the traveling surface side weft adjacent to both. Pass through
The first warp passes above any first paper-making side weft in the paper-making side weft and passes below the paper-making side weft adjacent to both sides,
The fourth warp passes above the second papermaking surface side weft different from the first papermaking surface side weft and passes below the papermaking surface side weft on both sides thereof.
The second warp and the third warp arranged inside the subunit pass below the common second traveling surface side weft different from the first traveling surface side weft, and the traveling surface side weft adjacent to both sides thereof. Pass over
The second warp passes above a third papermaking side weft different from the first and second papermaking side wefts and passes below the papermaking side weft adjacent to both sides.
The third warp passes above the fourth papermaking surface side weft different from all of the first to third papermaking surface side wefts and passes below the papermaking surface side weft on both sides thereof.
A papermaking fabric, wherein a plurality of the subunits are arranged so as to be biased in the extending direction of the warp with the subunits adjacent in the extending direction of the weft.   The subunit has a first region and a second region that are divided into two equal parts in the extending direction of the warp, and in the first region, the first warp and the fourth warp are woven into the running surface side weft. In addition, the second warp and the third warp are woven into the paper surface side weft, and the second warp and the third warp are woven into the running surface side weft in the second region, and the first 2. The papermaking fabric according to claim 1, wherein the warp and the fourth warp are woven into the papermaking side weft.   The first warp and the fourth warp are woven so as to form a plain structure on the running surface side weft over the entire first region, and the second warp and the third warp are in the second region. The papermaking fabric according to claim 2, wherein the weaving yarn is woven so as to form a plain structure in the running surface side wefts over the entire area.   The first warp and the fourth warp are woven so as to form a 3/1 structure on the running surface side weft over the entire first region, and the second warp and the third warp are the second warp 3. The papermaking fabric according to claim 2, wherein the running surface side wefts are woven so as to form a 3/1 structure throughout the entire region.   The first warp and the fourth warp are woven so as to form a plain structure on the papermaking side weft over the entire region of the second region, and the second warp and the third warp are of the first region. The papermaking fabric according to any one of claims 2 to 4, wherein the papermaking surface side wefts are woven so as to form a plain structure in the entire region.   The first warp and the fourth warp are woven so as to form a 1/3 structure on the paper-making-side weft over the entire second region, and the second warp and the third warp are the first warp The papermaking fabric according to any one of claims 2 to 4, wherein the papermaking surface side wefts are woven so as to form a 1/3 structure throughout the entire region.   The first papermaking surface side weft and the second papermaking surface side weft are a set of wefts, and the third papermaking surface side weft and the fourth papermaking surface side weft are a set of wefts. The papermaking fabric according to any one of claims 1 to 6.   The papermaking fabric according to any one of claims 1 to 7, wherein a diameter of the paper surface side weft is 35% to 70% with respect to a diameter of the running surface side weft. .   The set of the wefts is composed of two papermaking surface side wefts and one traveling surface side weft, according to any one of claims 1 to 8. Paper fabric.   9. The set of wefts according to any one of claims 1 to 8, wherein the set of wefts includes three papermaking surface side wefts and two traveling surface side wefts. Paper fabric.

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