JP4403058B2 - Method for weaving industrial fabric and endless industrial fabric weaved thereby - Google Patents

Description

  The present invention relates to a woven joint structure in which both ends of an endless woven fabric are made endless by woven joint, and more particularly to a woven joint structure of an industrial multilayer woven fabric that requires smoothness.

Conventionally, industrial fabrics are often joined endlessly, and examples of industrial fabrics include conveyor belts and papermaking fabrics. The endless joining method includes a sewing machine joint as disclosed in Japanese Patent Application Laid-Open No. 11-244615, and a fabric end warp as shown in Japanese Patent Publication No. 2002-511534, which is folded back to form a loop. Are connected by inserting core wires, and those having spiral coils attached to the ends of the fabric as shown in Japanese Patent Application Laid-Open No. 2004-115936, overlapping the loops of the coils at both ends and connecting the core wires, etc. Various methods are employed depending on the respective application. However, when the joining portion is required to have the same structure and smoothness as the other portions, a joining method using a woven joint is often employed.
In a papermaking fabric, even if it is a joint, it is not allowed to generate a mark on the paper. Therefore, joining by woven joint is indispensable, and the quality of the joint has a significant effect on the quality of the paper. As described above, the papermaking fabrics, which are the most demanding of industrial fabrics, can be understood to understand the requirements and solutions of most industrial fabrics. Therefore, the present invention will be described below on behalf of papermaking fabrics.
First, the method of weaving will be briefly described. Wefts created by removing the wefts at both ends of the weaved end fabric, forming parts consisting only of warps, facing the parts consisting only of warps at both ends, and removing the warps prepared in advance Weaving pieces consisting of only wefts, opening the wefts of this weaving piece according to the weaving structure, inserting the warp parts consisting only of warps at both ends into the openings alternately from both sides, Match. Currently, the weaving operation is almost always performed by an automatic weaving machine, and the weft opening is performed by a jacquard system.
There are various terminal methods depending on the fabric structure. Generally, since the warp fits well, the part of the lower surface side weft that passes through the lower surface side weft should pass through the fabric structure without breaking the fabric structure. In many cases, the lower surface side weft is sandwiched between the other ends, and a weaving method is employed in which ends are provided on both sides of the weft toward the back of the fabric, that is, the machine contact surface. In general, the warp butt is dispersed to improve smoothness and bonding strength, and the end is placed on the back side of the fabric. For example, as shown in FIG. 4 of JP-A-5-86594, there is a method of weaving the warp ends toward the running surface side of a multilayer fabric without breaking the fabric structure. The warp ends are not arranged in a single row with the same lower surface side weft interposed therebetween, but are generally arranged in a distributed manner as shown in this figure because of the relationship between the fabric structure, the mark property, and the weaving strength. .
In this way, the woven joint portion of the industrial fabric made endless does not change the structure with other portions, so that it does not give marks to the paper and has excellent surface properties and smoothness. However, industrial fabrics are often used in harsh conditions, and in particular, the running surface side of the fabric is worn by contact with rolls and machines, and the joints are also damaged, resulting in terminal slipping. The fabric sometimes broke from the woven joint.
Japanese Patent Laid-Open No. 11-244615 JP-T-2002-511534 JP 2004-115936 A Japanese Patent Laid-Open No. 5-86594

  In view of the above problems, the present invention intends to provide a weaving method for preventing abnormal wear of the weaving portion, joint disconnection, and the like, and an industrial fabric made endless using the weaving.

The present invention
“1. In an endless industrial fabric which is made endless by weaving the warp ends of the end-woven fabric into the weft, the industrial fabric passes at least one upper surface side weft and one lower surface side. The lower side weft, which consists of warp yarns passing through the lower side of the weft, forms the lower side fabric. The lower side weft is an even shaft multi-layer fabric in which polyester filaments and polyamide filaments are alternately arranged. Weaving method for the lower surface side, and one warp is (a) a weaving method in which one polyester filament lower surface side weft is sandwiched and warp ends are provided on both sides, and the other warp is (b) 1 After passing the lower side of the polyamide filament lower surface side weft, pass the upper side of the adjacent polyester filament lower surface side weft and sandwich the adjacent polyamide filament lower surface side weft. A method for weaving industrial fabrics, in which one warp is alternately repeated with a weaving method in which warp ends are placed on both sides of the fabric.
2. The lower surface side fabric of the industrial fabric described in Item 1 has a lower crimp on the lower surface side weft on the lower surface surface of the lower surface side weft passing over the upper side of one warp and then passing under the plurality of warps. The first warp is composed of the structure to be formed, and the warp always forms a warp knuckle below the lower side weft of the polyester filament, and the second warp always forms the warp knuckle below the lower side of the polyamide filament. A method for weaving industrial fabrics, characterized by being repeatedly arranged.
3. A portion in which the warp constituting the industrial fabric described in Item 1 or 2 passes under one lower surface side weft and then passes between three or more lower surface side wefts and a plurality of upper surface side wefts A method for weaving industrial fabrics, characterized in that it has a structure having
4). The end method of the woven part of the industrial fabric described in any one of items 1 to 3 is the first warp end method, the first warp is on the lower side of the polyester filament lower side weft The lower warp on the lower side of one polyamide filament that the second warp should pass through the fabric structure is a weaving structure in which the warp ends are put on both sides across the lower side weft in the part passing through the side. A method of weaving industrial fabrics, which passes through the upper side of the weft yarn on the lower side of the adjacent polyester filament and passes through the upper side of the adjacent lower side of the polyamide filament and then has warp ends on both sides.
5). The warp ends arranged on both sides of the polyamide filament are arranged on both sides of the polyamide filament without intersecting on the upper side of the polyamide filament, and the warp ends are arranged on both sides of the polyamide filament. 5. The method for weaving industrial fabric according to any one of items 1 to 4, wherein the method is pressed by a polyester filament.
6). 6. The method for weaving an industrial fabric according to any one of items 1 to 5, wherein the industrial fabric is a warp single weft double structure or a warp single weft triple structure.
7). An endless industrial fabric made endless using the industrial fabric weaving method described in any one of items 1 to 6. "
About.

  The present invention has a feature in a method for weaving an industrial fabric that is endless by weaving the warp ends of the end fabric into the weft. By using a suitable weaving structure, abnormal wear and resulting joint slippage, breakage from the weaving joint, surface without forming the lower side weft long crimp of the polyamide filament of excessive length at the weaving section It prevents adverse effects on sex.

SUMMARY OF THE INVENTION In view of the conventional problems, the present invention provides a weaving method for preventing an endless industrial fabric composed of polyester filaments and polyamide filaments from causing abnormal wear of the weaving joint, joint disconnection, etc. It is intended to provide a textile.
Polyester filaments are excellent in rigidity, have little elongation, can cross-intersect strongly, and maintain a long crimp shape formed by weaving. For this reason, it is often used for warps and lower side wefts of industrial fabrics. On the other hand, polyamide filaments are excellent in wear resistance and are often used on the running surface side of industrial fabrics. For these reasons, in particular, in the lower surface side fabric of the multilayer fabric, in order to improve the rigidity and the wear resistance, polyester filaments and polyamide filaments arranged alternately (interwoven) are used very often. The present invention relates to a method for joining unwoven fabrics, which are often used in industrial endless fabrics.

In this specification, warp means a thread that weaves in an endless manner at a woven joint, and weft means a thread that intersects with the warp, and is used as a warp or weft during weaving or use. It is not limited. In addition, the weaving method means a warp terminal structure of a weaving portion in which an end portion of a warp is woven into a weft to make it endless. In other words, this method means an organization. In the use application of the woven fabric, the upper surface side may be used as the conveyance surface, the lower surface side as the roll contact surface, and conversely the upper surface side may be used as the roll contact surface and the lower surface side as the conveyance surface.
The woven fabric of the present invention is intended for a method of joining a multi-layer woven fabric in which the upper surface side weft and the lower surface side weft are woven by one warp, as long as at least the wefts are arranged in two layers, For example, upper side wefts, lower side wefts may be arranged one above the other, upper side wefts, middle wefts, lower side wefts may be laminated, warp single weft double fabric, warp single weft triple fabric Etc. The arrangement ratio of the wefts may be the arrangement of the same number of upper surface side wefts and lower surface side wefts, or more upper surface side wefts than the lower surface side wefts. The warp structure passes through the upper side of at least one upper surface side weft and passes the lower side of one lower surface side weft. The lower surface side weft constituting the lower surface side fabric is made up of polyester filaments and polyamide filaments. This method is limited to the method of weaving even-numbered shaft fabrics arranged alternately (interwoven).

In the present invention, the lower surface side weft constituting the lower surface side fabric passes through the upper side of one warp and then passes through the lower side of the plurality of warps to form the lower surface side weft long crimp on the lower surface side surface. Since the woven fabric constructed in this way is an even shaft woven fabric composed of warps of the same structure, the warp always has a first warp that forms a warp knuckle on the lower side of one polyester filament lower surface side weft, The second warp forming the warp knuckle is always alternately and repeatedly arranged below the lower side weft of one polyamide filament.
Generally, it is better not to change the woven structure of the woven part with the woven structure of the woven fabric so that the thread fits better. Basically, the woven structure is not broken down due to problems such as surface properties and woven strength. A weaving method in which the warp end portion is directed toward the lower surface side so that the lower surface side weft is sandwiched by a portion passing through the lower side of one lower surface side weft to be passed. In the case where such a weaving method is not preferable due to the fabric structure, the texture in the fabric layer and in the bottom layer is different from the fabric structure without breaking the surface texture on the upper surface side.

In the conventional weaving method, the warp is a part where the running surface side knuckle is formed according to the fabric structure, and the warp end is always put out with the lower surface side weft interposed therebetween. For example, in an even-shaft woven fabric in which the warp is a complete structure and the warp knuckle is formed under the lower side weft once, the first warp in which the warp knuckle is always formed under the lower side weft of the polyester filament in the structure is polyester. A weaving method in which ends are placed on both sides of the lower side weft of the filament, and in the second warp where a warp knuckle is always formed on the lower side of the lower side of the polyamide filament, the ends are placed on both sides of the lower side of the polyamide filament. Has been used as a weaving method. When the same weaving method is used for the first warp and the second warp, the lower surface side weft passes the upper side of one warp, and then passes through the lower side of the plurality of warps to form a long crimp on the lower surface side. The lower side weft long crimp of the same length is always formed in places other than the woven joint, but the warp ends are arranged on both sides of the lower side weft in the woven part. The lower side weft of the polyester filament and polyamide filament that are sandwiched between the warp ends of the weaving part is essentially a long crimp of two complete wefts. Will be formed. Specifically, in the case of a lower surface side weft of a structure that passes over the lower side of seven consecutive warps after passing over one warp, after passing over the upper side of one warp in the woven portion , The structure passes under the 15 continuous warp yarns.
Polyester filament lower surface side wefts are rigid and have a crimped shape, so they will not be distorted during use of the fabric, but polyamide filament lower surface side wefts support the polyamide filament lower surface side wefts because they have poor rigidity. If there is no warp, the crimp shape will sag, contact excessively with the machine or roll, and wear rapidly due to the running of the fabric. Particularly when used in a situation where moisture is present, the rigidity of the polyamide is significantly reduced. Such excessive wear can cause warp ends to fall out or change the freeness of the woven joints to mark the paper under the influence of the end, making it possible to produce high quality paper. Disappear. In some cases, the woven joint may break and become unusable.

In order to solve such problems, the present invention provides a woven joint structure that does not form an excessively long polyamide filament lower surface side weft long crimp in the woven joint, thereby causing abnormal wear of the woven joint, joint missing, etc. Short life can be prevented. In such a piecing method, the weaving strength of the piecing portion can be improved by pressing the warp ends with polyester filaments present on both sides of the polyamide filament.
According to the weaving method of the present invention, in the first warp that always forms a warp knuckle on the lower side of the weft of the polyester filament on the fabric structure, the weft yarn on the lower side of the polyester filament that should pass through the warp end on the fabric structure is sandwiched. In the second warp where the warp knuckle is always formed on the lower side of the weft yarn on the lower side of the polyamide filament on the fabric structure, one polyamide filament that should pass on the fabric structure is used. After passing the lower side of the lower side weft, weaving method that passes the upper side of the adjacent lower side weft of the polyester filament and puts out the warp ends on both sides with the lower side of the adjacent polyamide filament on the lower side. The weaving method used alternately. Moreover, the upper surface side surface structure shall not be destroyed by using this woven joint structure. For this purpose, it is preferable that the woven fabric has a structure in which the warp passes under one polyamide filament lower weft and then passes between two or more lower surface side wefts and a plurality of upper surface side wefts. If there is no such portion, the second warp passes the lower side of one polyamide filament lower surface side weft to pass on the fabric structure as described above, and then the upper side of the adjacent polyester filament lower surface side weft. As a result, it is impossible to form a woven joint structure in which warp ends are provided on both sides of the adjacent lower side weft of the polyamide filament, and the present invention cannot be achieved. It is also preferable that the warp yarn has a structure having a portion that passes under one polyamide filament lower surface side weft and then passes between three or more lower surface side wefts and a plurality of upper surface side wefts. In a structure that passes between two yarns, the drawing of the warp may strongly affect the surface properties, and therefore it is preferable to use a tissue that passes between three or more yarns. The warp ends arranged on both sides of the polyamide filament are preferably arranged on both sides of the polyamide filament without intersecting on the upper side of the polyamide filament. If a woven joint structure with warps intersecting with a dense woven fabric, the warp density is increased at that portion, and the water resistance and the like may be changed from others, which may adversely affect the surface properties.

With this structure, the second warp is a structure that passes through the lower side of the weft yarn on the lower side of the polyamide filament, which should pass through the fabric structure even if it is a woven joint. Is not formed, and the warp ends arranged on both sides of the polyamide filament are pressed by the polyester filaments arranged on both sides of the polyamide filament, so that the joint strength is also improved.
The object of the present invention is to propose a weaving method for strongly weaving the end of the fabric without increasing the weft crimp length of the polyamide filament lower surface side of the weaving portion. By adopting it, it is possible to obtain an endless woven fabric having excellent weaving strength without destroying surface properties and freeness.
The yarn used in the present invention may be selected depending on the application. For example, in addition to monofilament, multifilament, spun yarn, crimped processing, bulky processing, etc., generally textured yarn, bulky yarn, stretch yarn, etc. Processed yarns that are called, or yarns that are combined by twisting them, can be used, and the cross-sectional shape of the yarn is not only circular, but also short, elliptical, hollow, etc. Can be used. The material of the warp, upper side weft and middle weft can also be freely selected. Polyester, polyamide, polyphenylene sulfide, polyvinylidene fluoride, polypropylene, aramid, polyetheretherketone, polyethylene naphthalate, polytetrafluoroethylene, cotton Wool, metal, etc. can be used. Of course, you may use the thread | yarn which blended and contained various substances according to the objective to these copolymers or these materials. Similarly, polyester filaments and polyamide filaments used as the lower surface side wefts may be copolymers or yarns in which various materials are blended or contained depending on the purpose.

  Embodiments of the present invention will be described with reference to the drawings. In order to explain the present invention in an easy-to-understand manner, a comparative example and a conventional example are also illustrated and described. In the examples, comparative examples, and conventional examples, a design diagram showing the complete structure of the fabric and cross-sectional views of warp and weft were used. 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, and 3, and the weft is indicated by Arabic numerals with dashes, for example, 1 ′, 2 ′, and 3 ′. In the description, the upper side weft is indicated by 1 ', 2', 3 ', and the lower side weft is indicated by e. At the end so that the polyester filament and the polyamide filament can be distinguished. , Or E, and the polyamide filament lower surface side weft is a or A, and expressed as 1′e, 2′a, 3′E, 4′A, or the like. In the design drawing, a cross indicates that the warp is positioned above the upper surface side weft, and a mark indicates that the warp is positioned below the lower surface side weft. In the design drawing, for the sake of convenience, the upper surface side weft and the lower surface side weft are arranged so as to overlap each other in a vertical direction, but they may be arranged so as to deviate in some cases. In addition, the design drawing shows a woven fabric structure, and the woven joint structure is not reflected in this design drawing.

(Comparative Example 1)
FIG. 1 is a diagram in which two design diagrams representing the complete structure of a woven fabric of another invention are connected in the longitudinal direction. The woven fabric of FIG. 1 is a 7-shaft woven fabric of double warp, double weft. Although this fabric is an odd shaft, it does not fall within the scope of the present invention, but is given for comparison in order to explain the present invention in detail. FIG. 2 is a cross-sectional view taken along the warp 1 and the warp 2 in the design diagram of FIG. 1, in which polyester filaments and polyamide filaments are interwoven with the lower surface side wefts. The warp structure passes under one lower surface side weft, then passes between the three upper surface side wefts and the three lower surface side wefts, then passes the upper side of the two upper surface side wefts, then one This is a structure passing between the upper surface side weft and the lower surface side weft. In such a woven fabric with an odd number of shafts, a single warp thread passes through both the polyester filament lower surface side weft and the polyamide filament lower surface side weft alternately. That is, as can be seen from FIG. 2, the warp 1 passes below the lower side weft 1'e of the polyester filament, and the next complete structure passes below the lower side weft 1'A of the polyamide filament. The warp yarn 2 also passes under the polyamide filament lower surface side weft 4'a and passes under the polyester filament lower surface side weft 4'E in the next complete structure. In the case of such odd-numbered shaft woven fabrics, if a weaving method is employed in which a warp yarn is provided on both sides of the lower surface side weft with a lower portion of the lower surface side weft passing through the structure, The ends can be selected to exit on either side of either the polyester filament or the polyamide filament. For example, the warp 1 has a weaving structure in which the weft ends of the polyester filament lower surface side weft 1'e are sandwiched between them, and the adjacent warp 2 has the warp yarn 2'E on both sides of the polyester filament lower surface side weft 4'E. What is necessary is just to make it the woven joint structure which takes out an edge part. With such a configuration, the weft joint structure in which the warp ends are always provided on both sides of the lower side weft of the polyester filament, the long crimp shape of the lower side weft is maintained, and the excessively long polyamide filament lower side weft generated at the woven part Since no long crimp is formed, excessive wear does not occur.

(Conventional example 1)
On the other hand, FIG. 3 is a diagram in which two design drawings of even-numbered shaft fabrics are joined in the longitudinal direction, and this fabric is an eight-shaft fabric with double warp and double weft. FIG. 4 is a cross-sectional view taken along the warp 1 and the warp 2 of the design diagram of FIG. 3, in which polyester filaments and polyamide filaments are interwoven with the lower surface side wefts. The warp structure passes under one lower surface side weft, then passes between the three upper surface side wefts and the lower surface side weft, then passes above the two upper surface side wefts, then the two upper surface side wefts And a structure passing between the lower side weft and the lower side weft. In such an even-shaft woven fabric, there are a first warp passing through the lower side of the polyester filament lower surface side weft and a second warp passing through the lower side of the polyamide filament lower surface side weft, and these are arranged alternately one after another. Become an organization. That is, as can be seen from FIG. 4, the warp 1 (first warp) passes below the lower side weft 1'e of the polyester filament, and the lower side of the lower side weft 1'E of the polyester filament even in the next complete structure. Pass through. Further, the warp 2 (second warp) passes under the polyamide filament lower surface side weft 4'a, and also passes under the polyamide filament lower surface side weft 4'A in the next complete structure. In this way, in the case of an even shaft woven fabric, if a weaving method is used in which a warp end is provided on both sides of the lower surface side weft with a portion passing through the lower side of one lower surface side weft, the first warp The warp ends are put out on both sides of the polyester filament, and the warp ends are put out on both sides of the second warp with the polyamide filament in between. As a result, as shown in FIG. 5, the lower side weft passes over the upper side of one warp, and then forms a long crimp of seven warps on the lower side surface through the lower side of seven consecutive warps. In the weaving part, the lower side weft long crimp of the polyester filament sandwiched between the ends of the first warp is as shown in FIG. 6, and the lower side weft long crimp of the polyamide filament sandwiched between the ends of the second warp Is as shown in FIG. Polyester is excellent in rigidity, so the long crimp shape is maintained firmly as shown in Fig. 6 and the crimp shape does not sag even when using fabric, but one polyamide filament lower side weft long crimp is a polyamide filament If there is no warp to support the lower surface side weft, it will be a long crimp of the polyamide filament lower surface side weft for 15 warp yarns, and the crimp shape that is too long will fall, especially in the situation where water intervenes. However, very long long crimps are worn rapidly by excessive contact with machines and rolls during running of the fabric. As a result, the end of the warp ends may be generated, or the freeness of the weaving portion may change, and the paper may be marked due to the influence of the terminal, making it impossible to produce high quality paper. In some cases, the woven joint may break and become unusable.

Example 1
In order to solve the above problem, the weaving method of the present invention as shown in FIG. Specifically, in the first warp, a weaving method is adopted in which one weft yarn on the lower surface side of the polyester filament that should pass through the fabric structure is passed through the warp end, and in the second warp, one polyamide filament that should pass through the fabric structure. After passing the lower side of the lower side weft, weave one warp alternately with the weave splicing method that passes the upper side of the lower side weft of the next polyester filament and puts the end of the next polyamide filament on the lower side of the weft and puts out warp ends on both sides The weaving method used was used.
The first warp that always forms a warp knuckle on the lower side of the lower side weft of the polyester filament on the fabric structure. Both sides of the polyester fabric without the crossing of the warp at the part passing through the lower side of the lower side weft on the fabric structure. Weaving joints that give out warp ends. Since the weft yarn on the lower side of the polyester filament sandwiched between the warp ends is excellent in rigidity, the crimp shape is maintained as shown in FIG. 6 and no abnormal wear occurs. In addition, since the woven structure of the woven part is the same as the woven structure of the woven fabric, the yarns are well-contained and the surface properties and the woven joint strength are not affected.
And in the second warp that always forms a warp knuckle on the lower side of the weft of the polyamide filament on the fabric structure, in the same way as the first warp, the warp on the fabric structure passes under the lower side of the weft of the polyamide filament, Assuming a woven fabric structure in which the ends of both sides of the polyamide filament are sandwiched, the weft yarn on the lower surface of the polyamide filament sandwiched between the warp ends becomes a long crimp with an excessive length of 15 warps as shown in FIG. Since abnormal wear may occur in the filament, a woven structure different from the first warp was used. In the second warp, after passing the lower side of one polyamide filament lower surface side weft that should pass through the fabric structure, it passes over the upper side of the adjacent polyester filament lower surface side weft, and both sides sandwiching the adjacent polyamide filament lower surface side weft Weaving joints that give out warp ends. That is, as shown by warp 2 in FIG. 8, after passing below the lower side weft 4'a of the polyamide filament that should pass through the fabric structure, it passes the upper side of the lower side weft 5'e of the adjacent polyester filament and then next to it. A weaving structure in which warp ends are provided on both sides of the lower weft yarn 6'a of the polyamide filament. Since this woven structure is a woven structure different from the woven structure unlike the first warp, it cannot be said that the yarn fit is better than that of the first warp. Therefore, the stability of the warp ends was improved by taking out the warp ends on both sides of the polyamide filament and pressing the warp ends with the polyester filaments on both sides. In the drawing of the warp 2 in FIG. 8, one warp end passes through the lower side of the lower surface side weft 4'a that should pass through the fabric structure, then passes over the lower surface side weft 5'e, and the lower surface side weft 6 A warp end was placed beside 'a, and the other warp end was placed so as to sandwich the lower surface side weft 6'a. If the warp yarn passes through the lower side of the lower surface side weft 4'a to pass through the fabric structure, it passes over the lower surface side wefts 5'e and 6'a, and the warp end is placed next to the lower surface side weft 7'e. If the woven joint structure is arranged and the other warp end is also arranged so as to sandwich the lower surface side weft 7'e, the warp end is pressed by the polyamide filament lower surface side wefts 6'a and 8'a on both sides. Since the woven structure is different from the woven structure, the warp ends do not fit well, and the warp ends are gradually loosened and the joint ends are loosened because the polyamide filament is not rigid. In the warp, it is important to have a structure in which warp ends are provided on both sides of the polyamide filament.
The same applies to the other warps 3 to 8, the first warp 3, 5 and 7 have the same weaving method as the warp 1, and the second warp 4, 6, and 8 have the same weave as the warp 2. The splicing method was adopted.
The first warp and the second warp of the present embodiment are structures in which the lower surface side knuckle is formed by passing through the lower side of the lower surface side weft only once in the complete structure, but in some cases, two or more warp lower surfaces in the complete structure It may be a structure forming a side knuckle. However, in the case of a structure in which a plurality of warp lower surface side knuckles are formed, the length of the lower surface side weft crimp formed on the lower surface side surface is shortened, so that it is necessary to use a special weaving method as in the present invention. This is suitable for a woven fabric structure in which a long crimp is formed on the lower surface as in this embodiment.
By using such a woven joint structure, a long crimp of the polyamide filament lower surface side weft is not formed excessively, so that the polyamide filament lower surface side weft is abnormally worn or missing, the fabric breaks, wet paper No mark is attached to the mark.

(Example 2)
FIGS. 9 to 11 are views for explaining another embodiment 2 of the present invention, and FIG. 9 is a design diagram of an eight-shaft warp single weft double woven fabric. The difference from Example 1 is that the arrangement ratio of the upper surface side weft and the lower surface side weft is changed from 1: 1 to 2: 1. The weaving method of the present invention can also be adopted in such a woven fabric. The warp structure passes through the lower side of one lower warp, passes between the three lower surface side wefts and the plurality of upper surface side wefts, passes the upper side of the three upper surface side wefts, and the two lower surface sides This is a structure passing between the weft and the plurality of upper surface side wefts. In the weaving part, weaving method with the warp ends facing the lower surface of the fabric, and the weaving method in which the warp ends are put on both sides of one weft yarn on the lower side of the polyester filament that should pass through the fabric structure, After passing the lower side of one polyamide filament lower surface side weft to pass, weave the upper side of the adjacent polyester filament lower surface side weft, and put out the warp ends on both sides of the adjacent polyamide filament lower surface side weft The method is a weaving method in which one warp is used alternately. Specifically, the warp 1 which is the first warp in the weaving portion is a weaving structure in which the weft ends of the polyester filament lower surface side wefts 5'e to be passed through the structure are sandwiched and warp ends are provided on both sides thereof. In 2, after passing under the lower side weft 11 ′ a of the polyamide filament that should pass through the fabric structure, it passes over the upper side of the lower side weft 13 ′ e of the adjacent polyester filament and sandwiches the lower side weft 15 ′ a of the adjacent polyamide filament. Therefore, we made a joint structure that put out terminals on both sides. Since the warp end of the second warp is a woven joint structure different from the fabric structure, it cannot be said that the warp end fits better than the first warp, but the warp ends are the lower wefts 13'e and 1'e of the polyester filament lower side on both sides Therefore, it does not gradually loosen and cause joint disconnection or breakage.
The same applies to the other warps 3 to 8, the first warp 3, 5 and 7 have the same weaving method as the warp 1, and the second warp 4, 6, and 8 have the same weave as the warp 2. The splicing method was adopted.
By using such a woven joint structure, a long crimp of the polyamide filament lower surface side weft is not formed excessively, so that the polyamide filament lower surface side weft is abnormally worn or missing, the fabric breaks, wet paper No mark is attached to the mark.

  Even under harsh conditions of use, there is no abnormal wear at the joint portion of the woven fabric and no joint loss caused thereby, so that it can be used for a long time until the end of use without deteriorating the surface property of the woven fabric.

3 is a design diagram of a fabric of Comparative Example 1. FIG. It is sectional drawing along the warp 1 and the warp 2 of the textile fabric of the design drawing of FIG. It is a design drawing of an eight shaft warp single weft double woven fabric. FIG. 4 is a cross-sectional view taken along warp 1 and warp 2 of FIG. 3. FIG. 4 is a cross-sectional view along the weft 1 ′ of FIG. 3. It is sectional drawing along the weft 1'e of the woven joint part of the textile fabric of FIG. Fig. 4 is a cross-sectional view taken along a weft 4'a of the woven joint of Fig. 3. FIG. 4 is a cross-sectional view taken along warp 1 and warp 2 of the woven joint of FIG. 3 in Example 1. 3 is a design diagram of a fabric of Example 2. FIG. FIG. 10 is a cross-sectional view taken along warp 1 and warp 2 of the fabric of FIG. 9. FIG. 10 is a cross-sectional view taken along warp 1 and warp 2 of the woven joint of FIG. 9.

Explanation of symbols

1, 2, 3 ... Warp 1 ', 2', 3 '... Weft 1'e, 3'e ... Polyester filament lower surface side weft 2'a, 4'a ... Polyamide filament lower surface side Weft

Claims (7)

  In an endless industrial fabric that is made endless by weaving the warp ends of the end-woven fabric into the weft, the industrial fabric passes at least one upper surface side weft and below one lower surface side weft. The lower side wefts, which consist of warp yarns that pass through the side, form the lower side fabric, are multi-layered fabrics of even shafts in which polyester filaments and polyamide filaments are alternately arranged. And a warp is one (1) warp yarn on the lower side of a polyester filament and a warp end on both sides, and (b) one polyamide. After passing the lower side of the lower side weft of the filament, it passes the upper side of the lower side weft of the adjacent polyester filament, and both sides of the lower side weft of the adjacent polyamide filament Weaving splicing method of industrial fabrics woven and splicing method was repeated to one alternately warps issue warp terminal.   The lower side fabric of the industrial fabric according to claim 1, wherein the lower side weft passes through the upper side of one warp, and then passes through the lower side of the plurality of warps, and the lower crimp on the lower side weft on the lower side surface. A first warp in which the warp always forms a warp knuckle below the lower side weft of the polyester filament and a second warp that always forms a warp knuckle on the lower side of the polyamide filament lower side weft. A method for joining industrial fabrics, characterized by being alternately and repeatedly arranged.   A portion in which the warp constituting the industrial fabric according to claim 1 or 2 passes under one lower surface side weft, and then passes between three or more lower surface side wefts and a plurality of upper surface side wefts. A method for weaving industrial fabrics, characterized in that it has a structure having   The end method of the woven joint portion of the industrial fabric according to any one of claims 1 to 3, wherein the end method of the first warp is the lower end of the weft yarn on the lower side of the polyester filament on the fabric structure. The lower warp on the lower side of one polyamide filament that the second warp should pass through the fabric structure is a weaving structure in which the warp ends are put on both sides across the lower side weft in the part passing through the side. A method of weaving industrial fabrics, which passes through the upper side of the weft yarn on the lower side of the adjacent polyester filament and passes through the upper side of the adjacent lower side of the polyamide filament and then has warp ends on both sides.   The warp ends arranged on both sides of the polyamide filament are arranged on both sides of the polyamide filament without intersecting on the upper side of the polyamide filament, and the warp ends are arranged on both sides of the polyamide filament. The method for weaving an industrial fabric according to any one of claims 1 to 4, wherein the method is pressed by a polyester filament.   A method for weaving an industrial fabric according to any one of claims 1 to 5, wherein the industrial fabric has a warp single weft double structure or a warp single weft triple structure. An endless industrial fabric made endless by using the industrial fabric weaving method according to any one of claims 1 to 6.

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