JP3900029B2 - Industrial two-layer fabric - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper fabric, a nonwoven fabric fabric, a fabric used for dewatering and squeezing sludge and the like, an industrial fabric such as a belt for building materials and a conveyor belt, and more particularly for a paper fabric, especially for tissue production. The present invention relates to a papermaking fabric.
[0002]
[Prior art]
Conventionally used industrial fabrics include, for example, papermaking fabrics, paper fabrics such as canvases, nonwoven fabric manufacturing fabrics, fabrics used for dewatering and squeezing sludge, belts for manufacturing building materials, conveyor belts, etc. There are things. Since these industrial fabrics travel while receiving tension in the warp direction during use, dimensional stability is required so that elongation and contraction in the width direction do not occur. In addition, posture stability is required to prevent meandering and wrinkles. In addition, wear resistance is also required because the wear is caused by contact with the driving roll during traveling. In addition, the surface is required to be smooth from the viewpoint of placing or transporting or processing an object on the surface.
Such a problem is an almost common problem in industrial fabrics, but it has not been solved yet. In addition to the above-mentioned performances, papermaking fabrics that require the most stringent performance of industrial fabrics are required to have various performances unique to papermaking as described below. Therefore, the present invention will be described below on behalf of papermaking fabrics.
The papermaking method is a well-known technique. First, a papermaking raw material containing pulp fibers and the like is formed endlessly from a head box, placed between rolls of a papermaking machine, and supplied onto a running papermaking fabric. The side on which the raw material for the papermaking fabric is supplied is the upper layer surface, and the opposite side is the lower layer surface.
The supplied raw material moves as the papermaking fabric travels. During the movement, moisture is removed by a centrifugal force or a dehydrator such as a suction box or foil installed on the lower side of the fabric, forming a wet paper web. Is done. That is, the papermaking fabric functions as a filter and separates pulp fibers and water.
The wet paper formed in this papermaking zone is then transferred to the press zone and the dryer zone. In the press zone, the wet paper is transferred by a papermaking felt and squeezed together with a papermaking felt by a nip pressure between press rolls, and further moisture is removed. In the dryer zone, the wet paper is transported by a papermaking canvas and dried to produce paper.
Papermaking fabrics are woven with a loom using warps and wefts such as synthetic resin monofilaments. In order to form it endlessly, it is formed endlessly by a known weaving joint, pin seam or the like, or endlessly formed by a bag weaving machine at the stage of weaving. In the case of bag weaving, the relationship between warp and weft is reversed on the loom and in use.
In this specification, the warp is a yarn extending in the machine direction of the papermaking machine, that is, the fabric traveling direction, and the weft is a thread extending in the cross machine direction of the papermaking machine, that is, the width direction of the fabric.
[0003]
By the way, in order to effectively improve the supportability of the fiber and to produce a good quality paper without generating a wire mark on the paper, the fiber is preferably supported by the weft from the relationship of the orientation of the fiber. This is very important. In particular, in a papermaking fabric for producing a tissue, since the tissue is very thin and the papermaking machine is high speed and the dewatering zone is short, fiber support and paper peelability are particularly required. Poor fiber support and paper peelability can lead to pinholes, which can cause not only apparent problems, but also a decrease in opacity and paper strength, as well as fiber carry back and splash. It becomes a big problem in operation.
Therefore, conventionally, as a papermaking fabric for producing a tissue, a type of single-layer fabric in which wefts form a long crimp on the upper surface side has been used. This is because the tissue machine contains almost no filler and therefore places importance on fiber support and paper peelability rather than abrasion resistance. However, single layer woven fabrics are unable to cope with the increasing mechanical load of paper machines that are increasing in speed. Single-layer fabrics have advantages such as good drainage due to thin net thickness, but disadvantages such as poor formation, poor running properties and poor retention due to insufficient rigidity due to the structure have become very large It is.
Therefore, recently, the use of multiple fabrics in tissue machines has increased, and it has been moderately successful. The structure of the multiple fabric is an upper and lower two-layer fabric structure in which the upper and lower fabrics are combined using a double weft yarn or a binding yarn, and the weft yarn forms a long crimp on the upper layer surface side as a structure on the upper layer surface side. Structure. In addition, in a two-layer fabric, a plain weave plain weave structure in which the lower surface side fabrics are arranged with two warps aligned in parallel for the purpose of reducing the net thickness in order to ensure drainage and small water retention. in use.
In addition, recently, a double-layer fabric of a ground yarn binding type in which upper and lower meshes are connected by a part of the upper layer warp as disclosed in European Patent EP0889160A1 and does not have an independent binding yarn is partly included. Used. Since this type of two-layer woven fabric does not have an independent binding yarn, it was possible to increase the number of weft yarns without reducing the freeness (air permeability). Therefore, it was expected and used that the fiber supportability could be improved, but there was a big problem due to the portion where the upper layer warp was bound. Since the upper layer warp functions as a binding yarn, there is no warp on the upper layer side in the portion that lies on the lower layer side, so excessive dehydration occurs locally in that portion, causing fiber carry back, splash, etc. In addition, the portion is generated as a horizontal mark, and when it is strong, it has a bad influence during creping. This problem has not been solved yet.
[0004]
[Problems to be solved by the invention]
In view of the above-mentioned problems, the present invention provides a ground yarn binding type two-layer woven fabric that does not have an independent binding yarn, in which a state in which no warp is present on the upper layer surface side does not occur in the binding portion. Wire that does not cause excessive dehydration, can increase the number of weft yarns without reducing freeness (breathability), has good fiber support, and does not generate fiber carryback or splash An object of the present invention is to provide a paper fabric with good markability.
[0005]
[Means for Solving the Problems]
The present invention
“1. Upper layer side fabric composed of upper surface side warp and upper layer side weft, lower layer surface fabric composed of lower layer side warp and lower layer side weft, upper layer side warp functioning as binding yarn The upper layer side warp and the binding yarn functioning as the binding yarn among the upper layer side warp and the lower layer side warp arranged vertically in the industrial two-layer fabric composed of the lower surface warp functioning as the binding yarn One or more pairs of lower surface side warps that function as the upper layer side warp function on the part of the upper layer side warp structure that is to be woven into the upper layer side warp structure. not woven layer surface side weft once or sequentially a plurality of times, the upper surface from incorporate a lower surface side weft to the lower surface side warp toward the lower side is woven on the tissue from one or more times lower side is incorporating an upper surface side weft toward the side organization, one Lower surface side warp functioning as binding yarn, the site where an upper surface side warp functioning as the binding yarn is woven the lower surface side weft from the lower side, not woven with lower surface side weft, the upper surface side lower surface side warps and upper surface side wefts not woven into the upper surface side warp toward me weaving structureless der from upper side, which serves as a co-woven yarn and an upper surface side warp to and functions as a knotting yarn There is the organization, and wherein the tissue der Rukoto having a portion passing below the same lower surface side wefts two upper surface side warp or lower surface side warp functioning as stitching yarn and a lower surface side warp in parallel Industrial two-layer fabric.
2 . Upper side weave is a repetition of tissue passing on the side of one upper surface side weft after passing through the lower of the three upper surface side wefts upper surface side warp is continuous, upper surface side wefts Is a repetition of a structure passing through the lower side of one upper layer side warp after forming a long crimp on the upper layer side through the upper side of three continuous upper layer side warp, 2. The industrial two-layer woven fabric according to item 1, which is a plain weave structure having a weave structure in which two lower surface side warps are arranged in parallel in the same structure. "
About.
Hereinafter, as described above, the present invention will be described using papermaking fabric as a representative.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention comprises an upper surface side warp, an upper surface side weft, a lower surface side warp, a lower surface side weft, an upper surface side warp that functions as a binding yarn, and a lower surface warp that functions as a binding yarn. The upper surface side warp functioning as a binding yarn is usually a part of the upper surface side warp in a portion in the warp direction. The upper surface side warp is usually on the upper layer side as viewed from the upper surface side fabric structure. The upper surface side weft to be woven from the lower surface side without weaving one or more times, and the lower surface side warp should normally be woven as viewed from the lower surface side structure, but the lower surface side that was not woven The weft yarn is woven several times from the lower surface side and then goes to the upper layer surface side, and the upper surface side weft yarn is woven again to function as a binding yarn, while the lower surface warp functioning as a binding yarn is Layer side warp goes to lower layer side Lower layer side weft is lower layer side In part it is woven from, usually directed without woven the lower surface side weft lower surface side warp to weaving the lower surface side one or more times on the upper surface side as viewed from the lower side on the tissue, upper surface side Normally, the upper surface side warp should be woven from the top of the fabric structure, but the upper surface side weft that was not woven should be woven from the upper surface side, and then the lower surface side weft is woven again toward the lower surface side. It is characterized by functioning as a binding yarn.
With the above configuration, since the upper surface warp functions as a binding yarn, the portion that lies under the lower surface, that is, in the papermaking fabric disclosed in the conventional European Patent EP0889160A1, the warp is on the upper surface side. The lower layer side warp, which functions as a binding yarn, rises to the upper layer side of the part that was not present, became excessively dehydrated locally, and caused problems such as fiber carry back and splash. Instead of side warp, it could be compensated and the problem of local excessive dehydration could be solved. Here, also for the lower side, in the portion where the lower surface side warp functioning as binding yarn is not raised on the upper surface side there is the lower surface side warp in order to compensate an upper surface, function as a binding yarn Since the upper surface side warp is lowered to the lower surface side to make up, the structure does not collapse . That is, the upper surface side warp and the lower surface side warp functioning as binding yarns complement each other.
[0007]
In addition, the upper surface side warp is the lower surface side weft that should be woven by the lower surface side warp, and the lower surface side warp is the upper layer surface that the upper surface side warp should originally be woven. Since it is a side weft, the upper surface side structure and the lower surface side structure are not substantially collapsed, and the wire mark characteristics and the like are good. In addition, since the present invention has a structure that is bound by ground warp, the yarn that functions as the binding yarn is the ground yarn, and since it is a warp to which tension is always applied during use, the binding of thin wefts is possible. Compared to the case of using yarn, the bonding force that bonds the upper layer side fabric and the lower layer side fabric is very strong, and because the force that always adheres the upper layer side fabric and the lower layer side fabric works, Good properties. Accordingly, there is no problem that the binding yarn is squeezed between the two fabrics to cause internal wear and the binding force is weakened, and a gap is generated between the two fabrics or separated. Furthermore, since the present invention has a structure in which both upper and lower ground warps are connected, the adhesion is further improved.
Further, the upper layer side fabric structure and the lower layer side fabric structure are not particularly limited as long as the above structure can be formed, but the upper layer side fabric structure is composed of three upper layer sides on which the upper layer side warp is continuous. after passing through the lower weft, in repetitive organization through one upper surface side weft upper side of the thread, upper surface side weft, an upper surface side through the upper three upper surface side warp successive When the structure passes through the lower side of one upper layer side warp after forming a long crimp on the upper side, it becomes a structure in which wefts often appear on the upper layer side, which is the papermaking surface side, A plain weave structure with a warp weave structure in which two lower surface side warps are arranged in parallel in the same structure is the same as when a thin flat yarn is used for the warp, and the crimp length of the upper weft is shortened. Therefore, because the structure is thin, good fiber support and paper peelability It is particularly suitable to papermaking fabrics for tissue manufacture thinness of AmiAtsu is particularly required.
[0008]
In addition, the density of the number of yarns with respect to the upper surface side fabric is not particularly limited, and the lower surface side wefts can have the same density as the upper surface side or a density such as 1/2 or 2/3.
The yarn used in the present invention can be freely selected depending on the properties desired for the papermaking fabric and is not particularly limited. For example, in addition to monofilament, multifilament, spun yarn, crimped or bulky processed textured yarn, bulky yarn, processed yarn called stretch yarn, mould yarn, or these are combined. Combined yarns can be used. In addition, the cross-sectional shape of the yarn is not limited to a circle, and a rectangular yarn such as a square shape or a star shape, an elliptical shape, a hollow yarn, or the like can be used. In addition, the material of the yarn can be freely selected, and polyester, nylon, polyphenylene sulfide, polyfluorinated vinylidene, 4 fluoroethylene, polypro, aramid, polyetheretherketone, polyethylene naphthalate, cotton, wool, metal, etc. are used. it can. Of course, you may use the thread | yarn which blended and contained various substances according to the objective to these copolymers or these materials.
In general, it is preferable to use a polyester monofilament having rigidity and excellent dimensional stability for the upper surface warp, the lower surface warp and the upper surface weft. In addition, the lower surface side wefts that require wear resistance can be improved in wear resistance while ensuring rigidity by interweaving polyester monofilaments and nylon monofilaments.
In addition, on the structure, a plurality of yarns can be arranged in the same structure where a single thread is originally arranged. By arranging a plurality of thin wire diameter yarns, the surface property can be improved and the thickness of the fabric can be reduced.
[0009]
【Example】
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a design diagram showing a complete structure of an embodiment of the present invention. The complete structure is a minimum repeating unit of the woven structure, and this complete structure is connected vertically and horizontally to form the entire structure of the woven fabric. In the design drawing, the warp is indicated by Arabic numerals, for example, 1, 2, 3, and the weft is indicated by Arabic numerals with dashes, for example, 1 ', 2', 3 '.
In addition, X indicates that the upper surface side warp is located above the upper surface side weft, ○ indicates that the lower surface side warp is located below the lower surface side weft, ▲ The mark indicates the part where the lower surface warp is located above the upper surface side weft, that is, the connecting portion where the lower surface warp functions as the binding yarn, and □ indicates the upper surface side warp is the lower surface. A portion located below the side weft, that is, a binding portion where the upper surface side warp functions as a binding yarn is shown.
The upper surface side and lower surface side warps and wefts are arranged one above the other. In the design drawing, the upper and lower warp yarns are arranged so that the yarns are accurately overlapped vertically, and the lower surface warp and the weft yarn are arranged just below the weft yarn. In an actual fabric, it may be displaced. In this embodiment, since the lower surface side fabric is a warp weave structure in which two adjacent warps are the same structure, the two lower surface side warps are actually arranged adjacent to each other.
[0010]
Example 1
FIG. 1 is a design diagram showing the complete structure of Example 1 of the present invention.
In the design diagram of FIG. 1, 1, 2, 3, 4, 5, 6, 7, and 8 are warps, and the upper surface side warp and the lower surface side warp are arranged vertically. 1 ′, 2 ′, 3 ′... 24 ′ are wefts, the upper surface side wefts are arranged on the upper side, and the lower surface side wefts are half-numbered and the odd-numbered upper layer surface wefts 1 ′, 3 ′, 5 '... It is arranged below.
First, when looking at the upper layer side fabric, for example, the upper layer side weft 4 'passes through the upper side of the three upper layer side warps 1, 2, 3 and then passes under the upper layer side warp 4 Then, the upper side of the three upper surface side warps 5, 6 and 7 was passed, then the lower side of one upper surface side warp 8 was passed, and the upper side of three consecutive upper surface side warps passed It turns out that it is the structure | tissue which passes the lower side of one back upper surface side warp.
On the other hand, the upper surface side warp 4 passes below the three upper surface side wefts 1 ′, 2 ′, 3 ′, then passes the upper side of one upper surface side weft 4 ′, and then the three upper surfaces. layer surface side weft 5 ', 6', 7 'through the lower, then one upper surface side weft 8' and through the upper, after passing through the lower of the three upper layer surface side weft continuous It can be seen that the structure passes through the upper side of one upper surface side weft.
Since the upper surface side wefts form a long crimp of three upper surface side warps on the upper surface side, the fiber support of the wefts becomes good. It can be seen that the upper surface side warp is a twill weave arranged sequentially by shifting upward by one upper surface side weft. In the present embodiment, the above-described structure is adopted, but the present invention is of course not limited to this. A satin weave structure may be used, and the weft crimp may be longer or shorter. If the twill weave structure is used, the limit number of weft threads can be increased as compared with the satin weave structure. Therefore, if there is no problem in ventilation, the number of weft threads can be increased.
[0011]
Next, when looking at the lower surface side fabric, the lower surface side warps 1 and 2, 3 and 4, 5 and 6, and 7 and 8 pass alternately above and below the same lower surface side weft and are aligned in the same structure. It can be seen that this is a plain weave plain weave structure. The mesh thickness can be reduced, and it is particularly suitable as a papermaking fabric for tissue production. In an actual woven fabric, the lower surface side warps 1 and 2 are arranged in close contact with each other below the upper surface side warps 1 and 2. The advantage of having a woven weave structure is the same as using a thick warp having a cross-sectional area equivalent to two, so the net thickness is reduced. There is a point formed in the weft wear type.
[0012]
Next, the connecting portion will be described. As can be seen from the drawings, in this embodiment, the upper surface side warps 1, 5 and the lower surface side warps 1, 5 function as binding yarns. In the upper surface side warp 1 and the lower surface side warp 1, the intersections with the weft yarns 9 ', 13', 17 'serve as connecting portions, and the upper surface surface warp 1 becomes the lower surface side weft yarns 9', 13 '. , 17 'passes below (shown by □) and weaves from the lower surface side, and the lower surface warp 1 passes above the upper surface side wefts 9', 13 ', 17' (shown by ▲) The upper layer side fabric and the lower layer side fabric are combined by weaving from the upper layer side.
By the way, as described above, the upper surface side warp is a structure passing through the lower side of three continuous upper surface side wefts and then passing the upper side of one upper surface side weft, and the lower surface warp is a plain weave. Since it is a structure, the upper surface side wefts 9 ′, 13 ′, 17 ′ should be woven from the upper layer surface side by the upper layer surface side wefts 9 ′, 13 ′, 17 ′. ′ And 17 ′ should be woven from the lower surface side by the lower surface side warp 1.
Therefore, the upper surface side warp 1 functioning as a binding yarn is made by weaving the upper surface side wefts 9 ', 13', 17 'that the upper surface side warp 1 should originally weave from the upper surface side on the upper surface side fabric structure. Without, that is, the upper surface side wefts to be woven are directed to the lower surface side without being woven three times in succession, and the lower surface side wefts 9 ′ and 13 ′ to which the lower surface side warp is originally to be woven are formed on the lower surface side structure. , 17 'is woven from the lower layer side, and then the upper layer side weft is woven from the upper layer side again toward the upper layer side to function as a binding yarn, and the lower surface warp 1 functions as a binding yarn. Is a portion where the upper surface side warp 1 is woven from the lower surface side toward the lower surface side, and the lower surface side warp 1 should be woven from the lower surface side. Layer side wefts 9 ', 13', 17 'should be woven without being woven The upper surface of the upper surface side wefts 9 ', 13', and 17 'should be woven into the upper surface side fabric structure without being woven three times on the layer surface side wefts. After weaving from the side, it can be well understood that the lower surface side wefts are woven again from the lower surface side and function as a binding yarn toward the lower surface side.
In addition, the upper surface side warp is lowered to the lower surface side and the support of the warp is lost, and in the conventional technology, the portion that has been excessively dehydrated locally causing problems such as fiber carry back and splash. The lower surface warp rises to the upper surface side and compensates for the upper surface side warp, and also on the lower surface side, the lower surface warp rises to the upper surface side to supplement the upper surface. The part where the lower surface warp does not exist is compensated by lowering the upper surface side warp to the lower surface side, and it is well understood that the upper surface side warp and the lower surface side warp complement each other it can.
In addition, the upper surface side warp is the position where the lower surface side warp is originally woven with the lower surface side warp, and the upper surface side warp is essentially the upper layer side. Since the weft is woven, the upper layer side structure and the lower layer side structure are not substantially collapsed, and the wire mark characteristics and the like are improved.
In this example, the ratio of the upper surface side weft to the lower surface side weft is 2: 1, the warp functioning as a binding yarn is arranged at a ratio of 1/4, and the upper surface side warp is After weaving the upper surface side weft three times from the upper surface side, the lower surface side wefts are woven three times from the lower surface side toward the lower surface side. After weaving three times from the layer surface side, the upper layer surface side wefts were woven three times from the upper layer surface side toward the upper layer surface side. Of course, although not limited to this, the upper layer side warp and the lower layer side warp functioning as a binding yarn by this main structure become the same structure, and the crimps and knuckles formed by both yarns are equivalent. Good balance of ventilation, rigidity, wire mark property, etc. is preferable.
If you want to increase the binding force of the upper and lower fabrics, you can increase the ratio of warps that function as binding yarns or increase the number of binding parts. If you want to increase the air permeability, it functions as a binding yarn. What is necessary is just to reduce the ratio of warp and to reduce the number of connecting parts. FIG. 2 is a cross-sectional view along the warp cut along the line AA ′ in FIG. 1. The upper surface side warp and the lower surface warp complement each other, and, except for the portion where the warp weaves the upper surface side weft from the upper surface side, between the upper surface side weft and the lower surface side weft It can be clearly understood that warps always exist, there is no warp, and there is a local excessive dehydration, and there are no parts that have caused problems such as fiber carry back and splash.
[0013]
Example 2
FIG. 3 is a design diagram showing the complete structure of Example 2 of the present invention.
In this embodiment, a complete structure is formed with 16 upper surface side wefts, and warp yarns functioning as binding yarns are arranged at a ratio of 1/2, and the upper surface side warp is formed by placing the upper surface side wefts on the upper surface surface. After weaving twice from the side, the lower surface side wefts are weaved twice from the lower surface side toward the lower surface side, and the lower surface warp is woven twice from the lower surface side Then, it is an Example made into the structure | tissue which weaves the upper surface side weft twice from the upper surface side toward the upper surface side. Since there are many connected parts, the top and bottom adhesion is very good.
[0014]
Example 3
FIG. 4 is a design diagram showing the complete structure of Example 3 of the present invention.
This embodiment is substantially the same as the embodiment shown in FIG. 3, but is an embodiment in which the shift of the warp yarn functioning as a binding yarn is irregular. Since the connecting portion does not continue obliquely, there is an advantage that the oblique wire mark is not conspicuous.
[0015]
Conventional Example FIG. 5 is a design diagram showing a complete structure of a conventional example disclosed in European Patent EP0889160A1. FIG. 6 is a cross-sectional view along the warp cut along the line BB ′ in FIG. 4. As can be seen from the drawings, the basic structure of the upper and lower fabrics is the same as that of the example, but there is a problem because the structure of the connecting portion is different.
The upper surface side warps 1 and 5 function as binding yarns. In the upper surface side warps 5, the intersections with the wefts 11 'serve as binding portions. The upper surface side warp 5 descends downward between the portions where the upper surface surface wefts 9 'and 13' are woven, and passes below the lower surface surface weft 11 '(shown by □) to lower layer surface side weft 11 'Is woven from the lower surface side, and the upper surface side fabric and the lower layer surface fabric are combined. The connecting portion does not exist between the upper surface side weft and the lower surface side weft, so there is no support for the warp, and excessive dehydration occurs locally, causing problems such as fiber carry back and splash. A part is formed.
In addition, on the lower layer side of the connecting portion, three warps of the lower layer side warps 5 and 6 and the upper layer side warp 5 are closely arranged in parallel, and the structure on the lower layer side collapses, so that a wire mark is generated. It was also the cause of.
[0016]
【The invention's effect】
Since the industrial two-layer woven fabric of the present invention has the above-described configuration, it is possible to increase the number of weft yarns without reducing the freeness (breathability), and the warp on the upper surface side in the connecting portion. No state does not occur, local excessive dehydration does not occur, fiber support is good, fiber carry back, splash, etc. do not occur, wire mark properties are also excellent It is effective.
[Brief description of the drawings]
FIG. 1 is a design diagram showing a complete structure of Example 1 of the present invention.
2 is a cross-sectional view along a warp cut along the line AA ′ in FIG. 1;
FIG. 3 is a design diagram showing a complete structure of Example 2 of the present invention.
FIG. 4 is a design diagram showing a complete structure of Example 3 of the present invention.
FIG. 5 is a design diagram showing a complete structure of a conventional example.
6 is a cross-sectional view along a warp cut along line BB ′ of FIG.
[Explanation of symbols]
1 Warp 2 Warp 3 Warp 4 Warp 5 Warp 6 Warp 7 Warp 8 Warp 1 'Weft 2' Weft 3 'Weft 4' Weft 5 'Weft 6' Weft 7 'Weft 8' Weft 9 'Weft 10' Weft 11 'Weft 12 'Weft 13' Weft 14 'Weft 15' Weft 16 'Weft 17' Weft 18 'Weft 19' Weft 20 'Weft 21' Weft 22 'Weft 23' Weft 24 'Weft

Claims (2)

Upper layer side fabric comprising upper surface side warp and upper layer side weft, lower layer side fabric comprising lower surface side warp and lower surface side weft, upper layer side warp functioning as binding yarn, binding In an industrial two-layer fabric composed of lower surface warps that function as yarns, it functions as upper layer side warps and binding yarns that function as binding yarns among upper and lower surface side warps and lower surface warps that are arranged vertically. lower surface side warp are arranged one or more sets in complete tissue, upper surface side warp functioning as binding yarn, the organization of the upper surface side warp, some to incorporate the upper surface side warp upper surface side wefts the not woven continuously one or more times, directed from incorporate a lower surface side weft to the lower surface side warp is woven on the tissue toward the lower side from the one or more times lower layer side to the upper side a woven's tissues for upper side wefts, whereas knotting Lower surface side warp functioning as, in portions an upper surface side warp functioning as the binding yarn is woven the lower surface side weft from the lower side, not woven with lower surface side weft, toward the upper surface side on the upper surface side wefts which the layer surface side warp was woven I weaving structureless der from an upper surface side and lower surface side warp functioning as co-woven yarn and an upper surface side warp functioning as stitching yarns the organization , and the industrial characterized by tissue der Rukoto the two upper surface side warp or lower surface side warp functioning as stitching yarn and a lower surface side warp has a portion passing below the same lower surface side wefts in parallel Double-layer fabric. Upper side weave is a repetition of tissue passing on the side of one upper surface side weft after passing through the lower of the three upper surface side wefts upper surface side warp is continuous, upper surface side wefts Is a repetition of a structure passing through the upper side of three continuous upper surface side warps and passing a lower side of one upper surface side warp after forming a long crimp on the upper surface side. The industrial two-layer woven fabric according to claim 1, wherein the two-layer woven fabric has a plain weave structure in which two lower surface side warps are arranged in parallel in the same structure.

Images