JP4266782B2 - Industrial fabric - Google Patents

Description

  The present invention relates to an industrial fabric such as a paper fabric, a nonwoven fabric fabric, a building material paper fabric, a transport fabric, and a filter fabric that form a long crimp of weft on the running surface side.

Conventionally, fabrics woven with warps and wefts have been widely used as industrial fabrics. For example, in many other industrial fields such as paper fabrics, nonwoven fabric manufacturing fabrics, building material paper fabrics, transport fabrics, and filter fabrics. There is a demand for fabric properties that are used and suitable for the intended use and environment. The woven fabric is usually endlessly woven and stretched by two rolls or the like. Therefore, weaving resistance that can withstand running on the machine, and stiffness, dimensional stability, running stability, and in some cases, excellent breathability and drainage without any stretching or streaking caused by stretching or running. Is desired.
Industrial fabrics that run at high speed often carry articles and the like on the surface side and are subject to wear on the side of the running surface that contacts the machine. On the running surface side, there is a phenomenon that the fabric gradually wears due to friction with rolls, etc., and the wear may end the life, so in industrial fabrics, the running surface side weft is used to improve wear resistance. Weft-worn fabrics with a long crimp structure are widely used. The double woven fabric for papermaking disclosed in Japanese Patent No. 2609134 also has a structure in which weft long crimps for 13 warps are formed on the running surface side surface for the same reason. For industrial fabrics that run endlessly by joining the warp ends of the fabric and applying tension in the longitudinal direction, if the warp is subjected to wear, the warp tends to break, thereby prematurely ending the life of the fabric. Therefore, a woven fabric having a weft-wear structure in which the weft is worn is preferable. In addition, since the wear-resistant volume is small when it comes into contact with a roll or the like in the form of dots or short lines, it is important to increase the wear-resistant volume. Contrary to the weft-wearing type fabrics, some building material papermaking apparatuses use fabrics having a raw material placing surface as a weft long crimp in order to improve the support of the raw material of the building material sheet.
As described above, a fabric in which a yarn (weft) on the side crossing the running direction of the fabric forms a long crimp on the surface of the fabric is widely used in the industrial field and has many uses.
As an example of the weft long crimp structure, after one weft passes over the upper side of one warp, a long crimp corresponding to seven warps is formed on the running surface side through the lower side of seven consecutive warps. There are shaft fabrics. In addition, there are woven fabrics of a reverse twill structure in which a structure in which the direction of the warp is changed and the direction of the twill is changed is arranged next to the structure of the eight shafts. The woven fabric of the reverse twill structure is an 8-shaft woven fabric, but a part of the woven fabric can form a weft long crimp of 8 or more warps. However, a short crimp is formed at the same time. If the number of shafts is increased, the weft crimp length can be increased as a whole, but increasing the number of shafts increases the number of hook frames arranged on the loom that weaves the fabric. Since there is an upper limit on the number of sash frames, weaving was usually carried out using a maximum number of sash frames in the industrial textile industry.
Japanese Patent No. 2609134

  In view of the above problems, the present invention is a woven fabric excellent in abrasion resistance or raw material support for forming a desired number of weft long crimps on the lower surface side of the woven fabric with a predetermined number of rib frames, It is an object of the present invention to provide an industrial fabric having air permeability and rigidity in comparison with a fabric having the same wire diameter and the same mesh.

The present invention
“1. In a single-layer or multi-layer woven fabric formed by warp and weft, 4n (n is an integer satisfying 2 ≦ n) warp and weft interwoven with the warp, m is an integer satisfying 1 ≦ m ≦ n), the 4m-2 warp structure, the 4m-1 warp structure and the 4m-3 warp structure are equal, and each two are the same weft. It is a weft having a portion forming a weft long crimp on the lower surface side through at least half of the wefts that are interwoven and passing under four or more continuous warps. Industrial fabric.
2. At least half or more of the wefts forming the lower surface side pass one weft over one lower surface side warp, then under one lower surface side warp, and then under one Item 1. The industrial fabric according to item 1, wherein the fabric has a portion that passes over the warp on the layer surface side and then passes under five or more warp yarns on the lower surface side to form a weft long crimp on the lower surface side. .
3. At least half or more of the wefts forming the lower surface side pass one weft over one lower surface side warp, then under one lower surface side warp, and then under one 3. The industrial fabric according to item 2, which is a structure in which a weft long crimp is formed on the lower surface side through the warp on the layer surface side and then passes under five or more lower surface warp yarns.
4). A structure in which a cross direction formed by arranging a weave structure in which the arrangement order of the warp structures is changed is adjacent to the complete structure formed by the weft structure described in any one of items 1 to 3 is mixed. Industrial textiles.
5. An industrial fabric, wherein the fabric described in any one of items 1 to 4 has a single-layer structure. "
About.

  The industrial fabric of the present invention is formed of 4n (n is an integer satisfying 2 ≦ n) warps and wefts interwoven with the warp, and the 4th m (m is all integers satisfying 1 ≦ m ≦ n) ) And the 4m-2 warp structure, and the 4m-1 warp structure and the 4m-3 warp structure are equal and each two are interwoven with the same weft and form the lower surface side. The effect of excellent abrasion resistance, rigidity, and stability is achieved by making an industrial fabric consisting of wefts having at least half of the wefts pass under 4 or more warps and forming a weft long crimp on the lower layer side. Play.

  The industrial fabric of the present invention is formed by 4n (n is an integer satisfying 2 ≦ n) warp and a weft interwoven with the warp, and the 4th m of the fabric (m satisfies 1 ≦ m ≦ n). All integers) and the 4m-2 second warp structure, the 4m-1 warp structure and the 4m-3 second warp structure are equal, and the two warps are woven with the same weft. It is characterized in that at least half of the wefts that are combined and form the lower surface side have a portion that passes under four or more warps and forms a weft long crimp on the lower surface side surface. More specifically, the weft forming one lower surface side passes over one warp, then under one warp, then over one warp, then five or more warps. It may be a structure having a portion that forms a weft long crimp on the lower surface side surface through the bottom, and may be a single layer fabric or a multilayer fabric.

In order to explain the fabric of the present invention in detail, the fabric configuration was divided into three.
(a) It is formed by 4n (n is an integer satisfying 2 ≦ n) warps and wefts interwoven with the warps.
(b) The 4m-th warp structure (m is an integer satisfying 1 ≦ m ≦ n) and the 4m-2 second warp structure, and the 4m-1th structure and the 4m-3 second 2 The warp structure of the book is equal.
(C) At least half or more of the wefts that form the lower surface side have a portion that passes under four or more warps to form a weft long crimp on the lower surface side surface.

The above (a) to (c) will be described in detail. (A) is a limited number of woven fabrics, and is formed by “4n (n is an integer satisfying 2 ≦ n)” warps. "Is" indicates that the number of warp yarns constituting the complete structure of the woven fabric is a multiple of 4 which is 8 or more. For example, 8 yarns (n = 2), 12 yarns (n = 3), 16 yarns (n = 4), 20 (n = 5), 24 (n = 6), etc. These numbers of warps and wefts are interwoven to form a woven fabric. The complete structure is the smallest repeating unit of the fabric structure, and the complete structure is connected vertically and horizontally to form a fabric.
(B) relates to the structure of the fabric, and the relationship between m and n and the details of (b) will be described with reference to Table 1.
n represents 2 or more, and m represents all integers satisfying 1 or more and n or less. Thus, when n = 2, m becomes 2 and 1. At this time, the woven fabric is composed of warp yarns 1 to 8 arranged in order, and if m = 2, 1 is substituted into the formula (b), when m = 2, the eighth warp yarn and the sixth warp fabric are equally 2 The book is interwoven with the same weft, and the other 7th and 5th warp structures are equal. When m = 1, the fourth warp and the second warp structure are the same, the third warp and the first warp structure are equal, and the two warps are woven together with the same weft. As shown in Table 1, the same applies when n is 3 or 4, and the same applies when n is 5 or more.

（ｃ）は織物を構成する下層面側を形成する緯糸組織を限定したものであり、該下層面側を形成する緯糸の少なくとも半数以上が、経糸４本以上の下を通って下層面側表面に緯糸ロングクリンプを形成する部分を有する。半数以上とは経糸１６本、緯糸８本で構成された織物の場合には４本、またはそれ以上の緯糸が、経糸４本以上の下を通って下層面側表面に緯糸ロングクリンプを形成する部分を有する組織とすればよく、それ以外の緯糸の組織については特に限定されない。また、１本の緯糸が経糸４本以上の下を通って下層面側に緯糸ロングクリンプを形成する部分を複数有する組織としてもよく、例えば経糸４本分以上のロングクリンプを２つ以上形成する組織でもよい。また１本の緯糸が経糸５本分の緯糸クリンプと経糸３本分の緯糸クリンプの両方を形成する組織等も含む。本発明で言う「クリンプ」とは経糸と緯糸が交差したナックルと次のナックルとの間に存在する経糸複数本分の緯糸の浮き、あるいは緯糸複数本分の経糸の浮きをいう。走行面に緯糸のロングクリンプを形成した緯糸に摩耗を請け負わせる構造とすることで耐摩耗性に優れる。

(C) restricts the weft structure forming the lower layer surface side constituting the woven fabric, and at least half or more of the wefts forming the lower layer surface side pass under four or more warp yarns and the lower surface side surface Has a portion for forming a weft long crimp. In the case of a woven fabric composed of 16 warp yarns and 8 weft yarns, 4 or more wefts pass under 4 or more warp yarns to form a weft long crimp on the lower surface side surface. What is necessary is just to set it as the structure | tissue which has a part, and it does not specifically limit about the structure | tissue of the other weft. Alternatively, the structure may have a structure in which one weft passes under four or more warps and forms a plurality of weft long crimps on the lower layer side. For example, two or more long crimps of four or more warps are formed. It may be an organization. Further, a structure in which one weft forms both a weft crimp for five warps and a weft crimp for three warps is included. The term “crimp” as used in the present invention refers to lifting of a plurality of warp yarns existing between a knuckle where a warp and a weft cross each other and the next knuckle, or lifting of a warp for a plurality of wefts. The wear resistance is excellent by adopting a structure in which the weft having the long crimp of the weft formed on the running surface is subjected to wear.

In the woven fabric of the present invention, for example, the first and third, second and fourth, fifth and seventh and sixth in a single-layer woven fabric composed of eight warps and four wefts interwoven with the warps. And the eighth warp structure is equal, and a weft long crimp of four or more warps is formed on the lower surface side, and one weft passes over the upper side of one warp and then passes under the one warp. Then, it passes through the upper side of one warp, and then passes through the lower side of the five continuous warps to form a weft long crimp on the lower surface side. In this weft structure, on the lower surface side surface, there are a portion where a long crimp is formed with one warp knuckle sandwiched, and a portion where a weft knuckle intersects with one warp. The weft knuckle for one warp thread has a warp knuckle on both sides thereof, so that it is pushed upward and does not protrude on the lower surface side surface.
Also, due to this action, the warp knuckles on both sides act in the direction toward each other, and the two warp knuckles try to stick together. Therefore, the lower surface side structure is substantially composed of a portion for forming a long crimp for five warps and a portion for adhering two warps. Since wefts are firmly woven by two sticking warp knuckles, the weft long crimp has a structure that protrudes toward the running surface, increasing the wear volume and making the fabric superior in wear resistance. Of course, the rigidity is also improved.

Compared to the satin weave fabric, which has been evaluated as having excellent wear resistance, the number of warp knuckles is higher and the rigidity is improved. Will not drop. The weft crimp length can be selected as appropriate depending on the fabric structure, but if it is too long, the stiffness will decrease, and conversely, in the case of a short weft crimp of 2 or 3 warps, the upward direction is caused by the warp on both sides. The pulling force of the weft crimp is strong and the protrusion of the weft crimp to the lower side surface is reduced, and the wear-resistant area is smaller than that of a weft crimp of four or more warps. . The length of the crimp may be selected according to the use or purpose of the fabric. When the end of the fabric of the present invention is joined endlessly by a known weaving method and used as a paper fabric, a filter cloth for a dehydrator, or a conveyor belt for conveying an article, the side on which the long crimp of the weft is formed is contacted by a machine. The side on which the long crimp of the weft is formed may be used as the raw material placement surface when importance is attached to the prevention of the removal of the raw material such as for building material papermaking. Thus, the fabric of the present invention may be used in accordance with the purpose.
The fabric of the present invention may have any structure as long as it has a structure satisfying the above (a), (b) and (c), and may be a multilayer fabric or a single layer fabric. For example, a single warp may be a multiple woven fabric such as a warp single weft double woven fabric in which upper surface side weft and lower layer side weft are woven, warp single double weft single woven fabric, or warp single double weft triple woven fabric. .

The yarn used in the present invention may be selected depending on the use or the function of each yarn on the woven fabric. For example, in addition to monofilament, multifilament, spun yarn, crimp processing, bulk processing, etc. Processed yarns called textured yarns, bulky yarns, stretch yarns, or yarns obtained by combining them together can be used. Also, the cross-sectional shape of the yarn is not limited to a circle, but a short yarn such as a square shape or a star shape, an elliptical shape, or a hollow yarn can be used. In addition, the material of the yarn can be freely selected, and polyester, nylon, polyphenylene sulfide, polyvinylidene fluoride, polypro, aramid, polyetheretherketone, polyethylene naphthalate, polytetrafluoroethylene, 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 excellent in rigidity and dimensional stability as the industrial fabric, and it can be selected as needed from the properties of the fabric and the weaving properties. In addition, it is preferable to interweave polyester monofilaments and nylon monofilaments in the weft forming the lower surface side where abrasion resistance is required in a multilayer fabric because it is possible to improve wear resistance while ensuring rigidity. . What is necessary is just to select each wire diameter according to a use and appropriateness.

Embodiments of the invention will be described with reference to the drawings based on examples.
1, 4, 6, 7, 8, and 9 are design diagrams showing the complete structure of the examples of the present invention. 1, 4, 6, 7, and 8 are single-layer fabrics having a single warp and a single weft, and FIG. 9 is a multilayer fabric having a single warp and a double weft. 2 is a cross-sectional view of the weft 1 'of FIG. 1, and FIG. 5 is a surface photograph of the lower surface side of the woven fabric based on the design diagram of FIG. 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, warps are indicated by Arabic numerals, for example, 1, 2, and 3. Wefts are indicated by Arabic numerals with a dash, for example, 1 ', 2', 3 '. In FIGS. 1, 4, 6, 7, and 8, which are single-layered fabrics, a circle indicates that the warp passes under the weft and forms a warp knuckle on the lower surface. In FIG. 9, which is a multilayer woven fabric, a cross indicates that the warp passes above the upper surface side weft and forms a warp knuckle on the upper surface, and a mark indicates that the warp is the lower surface side weft. It shows that a warp knuckle is formed on the lower surface side surface through the bottom. In the embodiment of FIG. 9 of the present invention, the wefts are arranged one above the other for convenience on the design drawing, but may be displaced in an actual fabric.
Next, embodiments of the present invention will be described based on examples with reference to the drawings.

[Example 1]
The fabric of Example 1 shown in the design diagram of FIG. 1 is a four-shaft single-layer fabric composed of warps and wefts, one warp having a warp 3/1 structure composed of eight warps and four wefts. It is a woven fabric with a texture of okinko. The weft is a structure that forms a long crimp of 5 warps on the lower surface, and warp 1 and warp 3, warp 2 and warp 4, warp 5 and warp 7, warp 6 and warp 8 have the same structure. For this reason, a single-layer woven fabric composed of eight warp yarns usually requires eight cocoon frames, but the woven fabric of the present invention can be woven with four half cocoon frames.
The woven fabric of Example 1 in FIG. 1 is woven to form a weft structure as shown in FIG. FIG. 2 is a cross-sectional view of a weft that directly represents the structure shown in the design drawing. Weft 1 'passes over warp 1, under warp 2, and over warp 3, in that order, then passes under five continuous warps 4, 5, 6, 7, 8 and is long crimped on the lower surface. Form. As can be seen from FIG. 2, a weft long crimp for five warps is formed on the lower surface. In the other portions, the warp 1 and the warp 3 weave the weft 1 'from the lower side, and the warp 2 weave the weft from the upper side. In this portion, the warp 2 is pushed upward because the force by which the weft 1 'pushes up the warp 2 is greater than the force by which the warp 2 weaves the weft 1' from above. Then, a force is applied to the warp 1 and the warp 3 toward the weft 2, and in an actual fabric, as shown in FIG. 3, the warp 1 and the warp 3 are arranged to stick to each other under the weft 1 '. Therefore, the weft knuckle existing under the warp 2 shown in FIG. 2 is actually covered with the warp 1 and the warp 3 as shown in FIG. 3 and does not protrude to the lower surface side. In this way, wefts are weaved by the fact that two warp yarns are approaching each other, so that the stiffness of the fabric is improved. By weaving the warp, the long crimp on the lower surface side further protrudes and the wear-resistant area increases and wear-resistance increases. There is also an effect of improving the property. Further, as can be seen from the broken line a drawn along the bottom of the warp knuckle in FIG. 3 and the broken line b drawn along the bottom of the long crimp of the weft, the longer crimp of the weft than the warp knuckle is apparent. Is projected to the lower surface side, so that the warp is less likely to be worn and the woven fabric can be used for a long time.
As described above, the woven fabric of the present invention can weave a woven fabric that forms a long crimp on the running surface side even with a small number of frame frames, and is excellent in rigidity and wear resistance, and has the same wire diameter and number of arrangements. It is an industrial fabric that can provide sufficient ventilation even compared to a fabric, and can be suitably used as many industrial fabrics including filter fabrics for dehydrators and fabrics for papermaking.

[Example 2]
The fabric of Example 2 shown in the design diagram of FIG. 4 is an 8-shaft single-layer fabric composed of warp and weft, and one warp 7/1 structure warp composed of 16 warps and 8 wefts. It is a woven fabric with an oval satin texture. The weft is a structure that forms a long crimp of 13 warps on the lower side surface, warp 1 and warp 3, warp 2 and warp 4, warp 5 and warp 7, warp 6 and warp 8, warp 9 and 11, The warps 10 and 12, warps 13 and 15, and warps 14 and 16 have the same structure. Therefore, a single-layer woven fabric composed of 16 warp yarns usually requires 16 cocoon frames, but the woven fabric of the present invention can be woven with half of the cocoon frames.
The fabric of Example 2 in FIG. 4 has a structure in which a long crimp is formed on the lower surface side. Specifically, the weft 1 'passes over warp 1, under warp 2, and over warp 3, in that order, and then continuous. A long crimp is formed on the lower surface side surface under the 13 warp threads 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16. The warp yarn was woven with one weft once per cycle to form a 7/1 structure, and every other warp yarn was formed into a satin weave structure. FIG. 5 shows a lower surface side surface photograph of a woven fabric woven based on the design diagram of FIG. As described above, on the lower surface side surface, there are a portion that forms a long crimp of 13 wefts and a portion in which two warps come close to each other and weave them together. In this way, since the warp yarns are substantially close to each other and wefts are woven, the long crimps of the weft yarns are as long as 13, but the fabric has high rigidity without causing slack in the fabric. And by weaving warp, the long crimp on the lower surface side further protrudes to increase the wear resistant area and improve the wear resistance. Further, since the long crimp of the weft protrudes to the lower surface side than the warp knuckle, the warp is less worn and the fabric can be used for a long time.
The woven fabric of the present invention can weave a woven fabric that forms a long crimp on the running surface side even with a small number of rib frames, and is excellent in rigidity and wear resistance, and compared with a woven fabric having the same wire diameter and number of arrangement. However, it is an industrial fabric capable of obtaining sufficient ventilation, and can be suitably used as many industrial fabrics including filter fabrics for dehydrators and fabrics for papermaking.

Example 3
The fabric of Example 3 shown in the design diagram of FIG. 6 is an 8-shaft single-layer fabric composed of warps and wefts, and warps 1 and 3 having a warp 6/2 structure composed of 16 warps and 8 wefts. 2 and 4, 5 and 7, 6 and 8, 9 and 11, 10 and 12, 13 and 15, and 14 and 16 warp every other satin weave structure. The wefts have long crimps with different lengths on the lower surface side. Specifically, the weft 1 'forms 6 long warps and 4 warps, and the weft 2' has 8 warps. This is a structure that forms a long crimp for two wefts, warp 1 and warp 3, warp 2 and warp 4, warp 5 and warp 7, warp 6 and warp 8, warp 9 and 11, warp 10 And 12, warps 13 and 15, and warps 14 and 16 have the same structure. Therefore, a single-layer woven fabric composed of 16 warp yarns usually requires 16 cocoon frames, but the woven fabric of the present invention can be woven with half of the cocoon frames. Thus, even if there are two types of wefts, the warp structure is composed of only one type.
The fabric of Example 3 in FIG. 6 is different from the fabric of Example 2 in FIG. 4 in that the warp structure is not a 7/1 structure but a 6/2 structure, and thus the length on the lower surface side surface. Two long crimps are formed, and there are two types of weft structures. In this way, the weft structure only needs to have a portion for forming a long crimp of four or more warps on the lower surface side surface, and the other matters do not matter. It does not matter if it is a structure that forms a weft crimp for two warps as in this embodiment, but this short crimp is not a structure that protrudes from the surface compared to a long crimp, so the wear area of the weft is small and wear does not occur. Use in harsh places is not preferred. However, since the fabric of this example has more connecting parts than Example 2, it is particularly suitable for applications that require rigidity.

Example 4
The fabric of Example 4 shown in the design diagram of FIG. 7 is a four-shaft single-layer fabric composed of warp and weft, and a warp 2/2 warp 1 composed of 8 warps and 4 wefts. It is a woven fabric with a satin weave texture. The weft is composed of a weft having a structure forming a long crimp for four warps on the lower surface side surface and a weft forming a plain weave structure, and includes warp 1 and warp 3, warp 2 and warp 4, warp 5 and warp. 7. The warp 6 and the warp 8 have the same structure. For this reason, a single-layer woven fabric composed of eight warp yarns usually requires eight cocoon frames, but the woven fabric of the present invention can be woven with four half cocoon frames.
The fabric of Example 4 in FIG. 7 is different from the fabric of Example 1 in FIG. 1 in that the warp structure is not a 3/1 structure but a 2/2 structure, whereby two types of weft structures are formed. Will exist. One weft is formed by a long crimp having a length equivalent to four warps on the lower surface side surface, and the other one forms a plain weave structure. In the woven fabric of the present invention, it is sufficient that more than half of the wefts constituting the woven fabric have a structure having a portion for forming a long crimp of four or more warps. Therefore, a plain woven structure may be mixed as in this embodiment. .
Specifically, the weft 2 'is a structure that forms a long crimp, and is a structure that passes through the upper side of four continuous warps and then passes the lower side of four continuous warps, and the weft 1' is a plain weave. Is forming. Although the weft 2 'forms a long crimp of 4 warps on the lower surface side surface, it is not preferred to use it where wear resistance is required because many warps appear on the running surface side, but ventilation is required. It is suitable for the following applications. In some cases, large and small yarns may be alternately arranged in the weft.

Example 5
The fabric of Example 5 shown in the design diagram of FIG. 8 is a single-layer fabric of 8 shafts composed of warp and weft, and warp 1 having a warp 7/1 structure composed of 16 warps and 8 wefts. It is a woven fabric with a book-setting satin weave. In this example, the warp yarns 1 to 16 on the left side of the drawing have the same structure as that in FIG. 4, but in the right side to 1 to 16, the warp yarn arrangement order was changed to form a complete structure. The right complete tissue warp 1 is the same as the left complete tissue warp 8 and the right complete tissue is 8, 7, 6, 5, 4, 3, 2, 1, 16, 15, 14, 13, 12 , 11, 10, and 9 in order of warp arrangement. In this way, the twill direction of the woven fabric was changed (in FIG. 8, a part of the twill is shown in a colored manner so that the twill is easy to understand). Long crimps having different lengths are formed on the lower surface side surface of the fabric having the reverse twill structure. For example, in the weft 1 ', the warp yarns 4 to 16 and 1 to 5 are passed through the lower surface and the lower surface side surface has 18 warps. And a long crimp of 8 warps on the lower surface side surface through the lower side of the warps 9-16. Further, in the weft 3 ', the lower crimp side is passed through the lower side of the warp yarns 13-16, 1-12 to the lower surface side surface, and the lower crimp side surface is passed through the lower side of the warp yarns 16, 1-9 to the lower surface side surface. A long crimp for 10 warps is formed. In this way, long crimps having different lengths are formed, but as can be seen from FIG. 4, the length of the original long crimp is as long as 13 warps. Can be formed. In addition, the reverse twill fabric is preferred for applications that require running stability because the fabric being used is less likely to meander.
And, as in the other examples, the warp yarns in the complete structure on the left side of FIG. 8 are warp 1 and warp 3, warp 2 and warp 4, warp 5 and warp 7, warp 6 and warp 8, warp 9 and 11, The warp yarns 10 and 12, warp yarns 13 and 15, and warp yarns 14 and 16 have the same structure. Similarly, the right warp structure has the same two warp structures, and the woven fabric of the present invention can be woven with eight rib frames. .
Long warps of 4 or more warp yarns are formed on the lower surface side surface, and in the other parts, two warp yarns come close to each other and weft yarns are woven together, causing slack in the fabric. The fabric has high rigidity. And by weaving warp, the long crimp on the lower surface side further protrudes to increase the wear resistant area and improve the wear resistance. Further, since the long crimp of the weft protrudes to the lower surface side than the warp knuckle, the warp is less worn and the fabric can be used for a long time.
The fabric of the embodiment of the present invention can weave a fabric that forms a long crimp on the running surface side even with a small number of rib frames, is excellent in rigidity and wear resistance, and has the same wire diameter and arrangement number. It is an industrial fabric that can provide sufficient ventilation even compared to a fabric, and can be suitably used as many industrial fabrics including filter fabrics for dehydrators and fabrics for papermaking.

Example 6
The fabric of Example 6 shown in the design diagram of FIG. 9 is a two-layer fabric of 16 shafts consisting of warps and wefts. The 16 warps and 8 are arranged with the upper surface side wefts and the lower surface side wefts overlapped. This is a woven fabric having a satin weave texture every other warp of an upper layer side surface warp 2/5 structure and a lower layer side surface warp 1/7 structure composed of eight upper layer side wefts, eight lower layer side wefts. The lower surface side weft is a structure that forms a long crimp of 13 warps on the lower surface side surface. Warp 1 and warp 3, warp 2 and warp 4, warp 5 and warp 7, warp 6 and warp 8, warp 9 And 11, warps 10 and 12, warps 13 and 15, and warps 14 and 16 have the same structure.
The fabric of Example 6 in FIG. 9 has a structure in which a long crimp of a weft is formed on the lower surface side. Specifically, the lower surface side weft 1 'is above warp 2, below warp 3, and above warp 4. Then, a long crimp is formed on the lower surface side surface under the 13 continuous warps 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1. The warp yarn was woven with one weft once per cycle to form a 7/1 structure, and every other warp yarn was formed into a satin weave structure. Similar to the other embodiments, there is a portion on the lower surface side where a long crimp of 13 warps and two warps approach each other and weave the wefts. In this way, since the warp yarns are substantially close to each other and wefts are woven, the long crimps of the weft yarns are as long as 13, but the fabric has high rigidity without causing slack in the fabric. And by weaving warp, the long crimp on the lower surface side further protrudes to increase the wear resistant area and improve the wear resistance. Further, since the long crimp of the weft protrudes to the lower surface side than the warp knuckle, the warp is less worn and the fabric can be used for a long time.
The woven fabric of the present invention can weave a woven fabric that forms a long crimp on the running surface side even with a small number of rib frames, and is excellent in rigidity and wear resistance, and compared with a woven fabric having the same wire diameter and number of arrangement. However, it is an industrial fabric capable of obtaining sufficient ventilation, and can be suitably used as many industrial fabrics including filter fabrics for dehydrators and fabrics for papermaking.

  The industrial fabric of the present invention is useful as a fabric for use in papermaking, non-woven fabric papermaking, building material papermaking, conveyance and the like, and exhibits excellent effects. In addition, it exhibits excellent performance as a filter cloth and is useful.

It is a design figure which shows the complete structure of Example 1 of this invention. FIG. 3 is a cross-sectional view taken along the weft 1 ′ on the design diagram of Example 1; It is sectional drawing along the weft 1 'of the textile fabric woven based on the design figure of Example 1. FIG. It is a design figure which shows the complete structure of Example 2 of this invention. It is a lower surface side surface photograph of the textile fabric of Example 2 of the present invention. It is a design figure which shows the complete structure of Example 3 of this invention. It is a design figure which shows the complete structure of Example 4 of this invention. It is a design figure which shows the complete structure of Example 5 of this invention. It is a design figure which shows the complete structure of Example 6 of this invention.

Explanation of symbols

1-16: Warp 1'-8 ': Weft

Claims (5)

  In a single layer woven or multi-layer woven fabric formed by warp and weft, 4n (m is 1) ≦ m ≦ n)), the 4m-2 warp structure, the 4m-1 warp structure and the 4m-3 warp structure are equal, and each two are interwoven with the same weft. And an industrial fabric characterized by being a weft having a portion in which at least half of the wefts forming the lower layer surface pass under four or more continuous warps and forming a weft long crimp on the lower surface side .   At least half or more of the wefts forming the lower surface side pass one weft over one lower surface side warp, then under one lower surface side warp, and then under one The industrial structure according to claim 1, wherein the structure has a portion that passes over the warp on the layer surface side and then passes under five or more lower surface warp yarns to form a weft long crimp on the lower surface side. fabric.   At least half or more of the wefts forming the lower surface side pass one weft over one lower surface side warp, then under one lower surface side warp, and then under one The industrial fabric according to claim 2, which has a structure in which a weft long crimp is formed on a lower surface side through a warp on a layer surface side and then passes under five or more lower surface warp yarns.   A structure in which the crosswise directions formed by arranging a weave structure in which the arrangement order of the warp structure is changed is adjacent to the complete structure formed by the weft structure described in any one of claims 1 to 3. Industrial textiles.   An industrial fabric, wherein the fabric according to any one of claims 1 to 4 has a single-layer structure.

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