JP4684849B2 - Industrial two-layer fabric - Google Patents

Description

  The present invention relates to an industrial two-layer fabric having particularly excellent oblique rigidity, running stability, and abrasion resistance.

Conventionally, fabrics woven with warps and wefts have been widely used as industrial fabrics. For example, they are used in many other fields such as papermaking fabrics, conveyor belts, filter fabrics, etc. Appropriate textile properties are required. In particular, the demand for papermaking fabrics used in the papermaking process, where the raw material is dehydrated using the mesh of the fabric, is severe, and the fabric has excellent surface properties that make it difficult to transfer the wiremarks of the fabric to the paper. Dehydration to fully dehydrate excess water, rigidity that can be suitably used even in harsh environments, wear resistance, and conditions necessary to produce good paper for a long time There is a need for a fabric that can last. In addition, fiber support, improvement in paper yield, dimensional stability, running stability, and the like are required. In recent years, the speed of papermaking machines has increased, and the demand for papermaking fabrics has become more severe.
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.
The life of a papermaking fabric may be due to wear on the machine contact surface side. Above all, only one side of the endless rotating fabric precedes, causing the fabric to deform diagonally, and only a part of the fabric wears abnormally due to the influence. May end up. These not only shorten the fabric life, but also adversely affect the paper quality. Conversely, it is possible to improve the fabric life, paper quality and the like by improving the running stability.
In recent years, two-layer fabrics using warp binding yarns have been increasing in order to improve surface properties and binding force, and to prevent internal wear. However, when the current running surface side layer of the papermaking fabric has a wear-resistant bottom side weft long crimp structure, there are many twills in which the twills are continuous in one direction, for example, US 2004/0182464 FIG. 5 shows a plan view of the inner side of the lower surface side layer. In this fabric, the twill extends obliquely upward to the left, so that the fabric gradually advances in the left direction. For this reason, there is a method of eliminating the one-side advance phenomenon by breaking the twill direction of the fabric on the traveling surface side to make the fabric composed of twill in two directions for the purpose of improving running stability. For example, a 4 × 4 satin woven fabric or the like in which the running surface side layer is formed by combining right-up twill and left-up twill is representative. This structure does not advance only to one side because the twill is not only in one direction like the twill structure. However, since the running surface side layer is a structure that forms a relatively short crimp passing under the three continuous warps, it has poor wear resistance and is not preferable as a papermaking fabric used in harsh environments. It was.
US2004 / 0182464

  Provided is an industrial two-layer fabric having a lower surface side structure that eliminates the deformation, meandering, and running instability of the fabric due to the lack of diagonal rigidity found in conventional industrial fabrics.

The present invention
“1. It is composed of 12 sets of 12 warp yarns in which 12 upper surface side warps and 12 lower surface side warps are arranged vertically, and a plurality of upper surface side wefts and lower surface side wefts. In an industrial two-layer woven fabric in which one or more sets of binding warp yarns, each of which is a warp binding yarn interwoven with both upper surface side wefts and lower surface side wefts,
The lower side warp passes through the upper side of six consecutive lower surface side wefts, then passes the lower side of one lower surface side weft, and then passes the upper side of four consecutive lower surface side wefts. A structure that passes under the lower side weft,
The adjacent 12 warps constituting the lower surface side are shifted by two lower surface side wefts, and then the adjacent warp is sequentially shifted to the lower surface side wefts to form the complete structure of the lower surface layer.
The lower surface side weft passes below the continuous five lower surface side warps, passes the upper side of one lower surface side warp, and then passes below the five consecutive lower surface side warps. An industrial two-layer woven fabric characterized by having a structure passing through the upper side of the lower side warp.
2. A set of binding warps consists of two warp binding yarns, or one warp binding yarn and one upper surface side warp, or one warp binding yarn and one lower surface. It consists of side warps, and the two warps forming these sets cooperate to form a structure equivalent to one warp on the upper surface and the lower surface on the upper surface and the lower surface. 2. The industrial two-layer woven fabric according to item 1, which is formed.
3. The upper surface side warp interwoven with the upper surface side weft, the set of warps where the lower surface side warp interwoven with the lower surface side weft is arranged vertically, and at least one of the upper surface side warp and the lower surface side warp is the upper surface side weft The industrial warp described in item 1 or 2, characterized in that a set of binding warps, which are warp binding yarns interwoven with both the weft and the lower side weft, is arranged in a ratio of 3: 1. Double-layer fabric.
4). 4. The industrial double-layer fabric according to any one of items 1 to 3, wherein a ratio of the number of upper side wefts and lower side wefts is 1: 1 to 2: 1.
5. The industrial two-layer woven fabric according to any one of items 1 to 4, wherein the structure of the upper surface side layer is any one of a plain weave, a twill weave and a satin weave. "
About.

  The industrial two-layer woven fabric of the present invention is a 24 shaft woven fabric composed of a combination of 4 × 4 satin weave textures on the lower surface side layer, so that the diagonal rigidity, running stability, and abrasion resistance are extremely excellent. Woven fabric.

The industrial fabric of the present invention is composed of 12 sets of warp yarns in which 12 upper surface side warps and 12 lower surface side warps are arranged vertically, and a plurality of upper surface side wefts and lower surface side wefts. An industrial two-layer woven fabric in which at least one set of binding warps, in which at least one warp of the warp yarns is a warp binding yarn interwoven with both the upper surface side weft and the lower surface side weft, The lower side warp passes through the upper side of six consecutive lower surface side wefts, then passes the lower side of one lower surface side weft, and then passes the upper side of four consecutive lower surface side wefts. The structure passes through the lower side of the lower side weft, and the warps of that structure are arranged adjacent to each other, but are shifted by two lower side wefts, and then the adjacent warp is shifted by six lower side wefts. The next warp is also shifted by two lower side wefts, and the next warp is the lower side. It was placed in the weft 6 duty shift. By sequentially shifting in this way, the lower surface side wefts passed through the lower side of five continuous lower surface side warps, and then the structure passing through the upper side of one lower surface side warp was repeated. The structure of the upper surface side layer is not limited and may be plain weave, twill weave, satin weave, and the complete structure obtained by these is connected vertically and horizontally, and is industrially superior in oblique rigidity, running stability and wear resistance. A two-layer fabric was obtained.
In this specification, the upper surface side warp and the lower surface side warp arranged above and below are called a "warp group", and at least one of the upper surface side warp and the lower surface side warp is a warp binding yarn. This is called the “binding warp group”. The set of binding warps includes two warp binding yarns, one upper surface warp and one warp binding yarn, one lower surface warp, Some are made of a single warp binding yarn.

There is a reason that the complete structure constituting the woven fabric of the present invention is composed of a total of 24 warps, and the complete structure of the lower surface side layer is composed of a combination of 4 × 4 satin weave structures. There is a long crimp structure on the lower surface side weft that could not be obtained with a 16 shaft 4 × 4 satin weave fabric. In this way, it is a common method to increase the life of the wire by making the wefts extending in the cross direction of the machine longer than the warps extending in the running direction and applying the wear to the wefts. It was impossible to make a weft long crimp equivalent to four or more warps in the structure of No. 4 satin weave.
The 4 × 4 satin weave structure referred to in this specification is composed of four warps and four wefts, and the warp passes below the one weft and then passes above the three wefts. In the structure, the weft is a structure that passes the upper side of one warp and then passes the lower side of three warps. The adjacent warp is shifted by one weft, the next warp is shifted by two wefts, the next warp is shifted by three wefts, and then the two warps are shifted back. By such an irregular shift, two twills are formed in the 4 × 4 satin weave structure, a twill going to the right diagonal direction and a twill going to the left diagonal direction. In the case of a woven fabric in which the lower surface side layer of the 16 shaft consisting of 8 upper surface side warps and 8 lower surface side warps is composed of a 4 × 4 satin weave structure, the 4 × 4 satin block is always arranged side by side. Therefore, after the lower surface side weft passes over one lower surface side warp, it passes under the three lower surface side warps and has a structure in which three warp crimps are formed on the lower surface side surface. This length of crimping is always repeated for 16 shaft fabrics. Depending on the textile application, even a crimp of three warps may be sufficiently worn, but it is not universal.

On the other hand, the lower surface side layer of the present invention has a 2 × 4 non-weaved portion adjacent to the side of the 4 × 4 satin weave texture. This is composed of two warps and four wefts, where the weft overlaps under the warp. There is always a 2 × 4 non-weaved portion next to the 4 × 4 satin weave and shares the weft. Then, the lower surface side layer is configured by sequentially shifting the 6 × 4 block obtained by combining the two. As a result, the lower surface side weft passes through the upper side of one lower surface side warp and then passes through the lower side of five continuous lower surface side warps, and a long crimp of five warps is formed on the lower surface surface. Organization.
The lower surface side warp constituting the lower surface side layer passes through the upper side of the six consecutive lower surface side wefts, passes through the lower side of one lower surface side weft, and then passes the upper side of the four consecutive lower surface side wefts. After passing, the structure passes through the lower side of one lower side weft, and this warp is shifted by two wefts, and the adjacent warp is shifted by six wefts, and sequentially shifted by two and six. As a result, a 6 × 4 block including a 4 × 4 satin weave block is sequentially shifted, and the lower surface side weft passes under the five lower surface side warps and then 1 It becomes the structure | tissue which repeated the structure | tissue which passes above the lower surface side warp. By setting it as such a structure | tissue, the diagonal rigidity expressed by a 4x4 satin weave structure is obtained. In other words, since this lower surface side structure has two twills, a twill going to the right diagonal direction and a twill going to the left diagonal direction, only one direction will not advance during traveling due to the influence of the fabric structure. It becomes a fabric excellent in running stability and oblique rigidity. In addition, since the lower surface side weft always forms a long crimp of the length of 5 warps on the running surface side surface, the woven fabric has excellent wear resistance.
As described above, the structure of the present invention solved the wear resistance, which was a drawback of the 16 shaft 4 × 4 satin weave, while ensuring the oblique rigidity and running stability seen in the 4 × 4 satin weave. The fabric is suitable for industrial fabrics.

The woven fabric of the present invention is composed of 12 sets of warps formed by arranging 12 lower surface side warps vertically, and a plurality of upper surface side wefts and lower surface side wefts. The lower surface side layer is composed of the lower surface side warp and the lower surface side weft. The binding yarns that weave the upper surface side layer and the lower surface side layer are arranged in the longitudinal direction, and at least one of the 12 sets of warp yarns is used as the warp binding yarn. The warp binding yarn functions as a yarn constituting the surface structure in place of the upper surface side warp and / or the lower surface side warp in addition to the function of binding the upper surface side layer and the lower surface side layer. Since it is not a typical thread, the surface texture is not destroyed.
In the warp binding yarn group, both the upper surface warp and the lower surface warp forming the pair are warp binding yarns, or only the lower surface warp is a warp binding yarn 1 One warp binding yarn and one upper surface side warp, or one warp binding yarn and only one lower surface side warp consisting of only the upper surface side warp There is something to be. The two warps forming these sets cooperate to form a structure corresponding to one warp on the upper surface and the lower surface, the same as the other upper and lower warps.
Each binding warp constituted by two warp binding yarns may be the same structure or different structures. In particular, it is preferable that one has a structure where one is interwoven with one or more upper surface side wefts and the other is interwoven with at least one lower surface side weft.

In the binding warp pair in which the warp binding yarn and the upper surface side warp form a pair, the upper surface side layer does not pass the upper side of the upper surface side weft that the upper surface side warp should originally pass, but instead the warp yarn The binding yarn passes above the upper surface side weft, and these two warps form a structure of one warp on the upper surface, like the other upper surface warps. The knotted yarn is interwoven with the lower surface side weft to form a structure of one warp on the lower surface side in the same manner as other lower surface side warps.
In the binding warp pair in which the warp binding yarn and the lower surface warp form a pair, the lower surface warp does not pass under the lower surface weft that should pass originally, but instead the warp binding yarn Passes under the lower surface side wefts, and these two warps form a warp structure on the lower surface side in the same way as other lower surface side warps. In the upper surface side layer, the warp binding yarns are upper surface side wefts. And a warp structure is formed on the upper surface side in the same manner as other upper surface side warps.

  In this way, the same surface texture as that of the upper surface side warp can be formed on the upper surface side surface. If the upper surface side warp forms a 1/1 structure, the bonded warp group may be similarly formed into a structure that forms a 1/1 structure. By repeating this, a plain weave is formed on the upper surface. An organization can be formed. Moreover, in that case, it becomes a more uniform surface by making the wire diameter of a warp binding yarn and the upper surface side warp the same. Of course, the woven fabric has excellent surface properties, and since the binding yarns are arranged in the longitudinal direction where tension is applied, the binding force is stronger than the weft binding yarns and the upper and lower layers are not loosened. Can be suppressed. Furthermore, since there is no additional binding yarn, the number of driven yarns can be increased and the fiber support is excellent.

The arrangement ratio of the binding warp pairs is not particularly limited, but one or more of the 12 warp pairs need to be the binding warp pairs. For example, one set of binding warp may be set to 11 sets of warps, or the ratio may be 2/12, 3/12, 6/12, or the like. However, if all of the 12 sets are set as a binding warp, there is a possibility that the weaving of the binding warp may cause the fabric to break and fall off, so preferably 2/12 to 6/12. It should be a percentage. For example, there are 3/12 and the like. In such a case, after arranging three warp groups, one set of binding warp groups may be arranged equally. In particular, in the case of the 12 shaft of the present invention, when the ratio of the upper surface side weft to the lower surface side weft is 1: 1, 3: 2, 2: 1, etc., the arrangement ratio of the warp group and the binding warp group from the shift relationship 9: 3 is particularly preferable because a warp structure including warp binding yarns can be evenly wound with 12 warp yarns to form a complete structure.
The ratio of the number of upper side wefts and lower side wefts is preferably 1: 1 to 2: 1. For example, there are 1: 1, 2: 1, 3: 2, 4: 3, and other ratios may be used. In general, it is better to increase the density of the upper surface side layer from the surface such as surface property and fiber support, and it is better to roughen the lower surface side layer from the surface such as dehydration property.
Further, the woven fabric structure of the upper surface side layer is not particularly limited, and plain weave, twill weave, satin weave and the like are preferable. Further, a plurality of warp structures may be combined, for example, a structure in which two different structures are alternately arranged. An auxiliary weft having a smaller wire diameter than the upper surface side weft may be arranged between the upper surface side wefts on the upper surface side surface. For example, by arranging upper side wefts and auxiliary wefts alternately and forming a structure in which the auxiliary wefts form a long crimp passing over the upper side of a plurality of warps, there is an effect of improving the fiber support of the wefts.

The wire diameter of the constituent yarn is not particularly limited, but in order to obtain a dense and smooth surface, it is preferable that the upper surface side weft and the upper surface side warp constituting the upper surface side have relatively small wire diameters. And in the use which attaches great importance to surface properties, it is preferable to use a warp binding yarn having the same diameter as the upper surface side warp. If there is a difference in the wire diameter between the upper surface side warp and the warp binding yarn, the yarn having the larger diameter may protrude from the upper surface side and give a wire mark to the paper. If the upper surface side warp and the warp binding yarn have the same wire diameter, the height of the upper surface side warp knuckle will be approximately the same, so that a relatively uniform surface can be formed. However, if rigidity, wear resistance, etc. are taken into consideration, the warp binding yarn and the lower surface side warp may have the same diameter.
Since the lower surface on the machine or roll contact surface side requires rigidity and wear resistance, it is preferable that the lower surface side weft and the lower surface side warp have a relatively large wire diameter. These need to be determined in consideration of the application, use environment, arrangement ratio of the number of upper and lower weft yarns, and the like.

The yarn used in the present invention may be selected according to the use and purpose. For example, in addition to monofilament, multi-filament, spun yarn, crimped processing, bulky processing, etc. Processed yarns called stretch yarns, or yarns that are combined by twisting them 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. The material of the yarn can also be freely selected, and polyester, polyamide, 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.
Generally, as the papermaking wire, it is preferable to use a polyester monofilament having rigidity and excellent dimensional stability for the upper surface side warp, the lower surface side warp, the warp binding yarn, and the upper surface side weft. In addition, it is preferable to interweave polyester monofilaments and polyamide monofilaments alternately on the lower surface side wefts that require wear resistance so that the wear resistance can be improved while ensuring rigidity.

Embodiments of the invention will be described with reference to the drawings.
FIGS. 1-20 is an Example of this invention, Comprising: The design drawing and sectional drawing along warp are shown. FIG. 21 shows a design diagram of the lower surface side layer, which is a feature of the present invention. For the sake of clarity, the upper surface side structure, the connective structure, and the like are omitted, and the 4 × 4 satin weave texture portion is shaded.
The design drawing is the smallest repeating unit of the fabric structure and corresponds to the complete structure of the fabric. What is described in detail in the claims of the present invention is this complete structure, and the complete structure is connected in the vertical and horizontal directions to form a woven fabric. In the design drawing, the warp is indicated by Arabic numerals, for example, 1, 2, and 3, of which a set of warp composed of upper surface side warp and lower surface side warp, and a set of binding warp composed of two warp binding yarns, Or, there may be a set of binding warps composed of upper surface side warps and warp binding yarns, or a combination of binding warps composed of lower surface side warps and warp binding yarns. The wefts are indicated by Arabic numerals with dashes, for example, 1 ', 2', 3 '. Depending on the arrangement ratio, there may be a case where the upper surface side weft and the lower surface side weft are arranged vertically on the design drawing, or only the upper surface side weft.
Further, a cross indicates that the upper surface side warp is located above the upper surface side weft, and a □ indicates that the lower surface side warp is located below the lower surface side weft. ● indicates that the warp binding yarn is positioned above the upper surface side weft, and ○ indicates that the warp binding yarn is positioned below the lower surface side weft. The ♦ symbol also indicates that the warp warp yarn is located above the upper surface side weft, and the ◇ symbol indicates that the warp yarn is located below the lower surface side weft. Indicates. A set of warps, a set of binding warps, an upper surface side weft and a lower surface side weft are listed together in one row of the design drawing. However, this is for the convenience of the drawing, and may be shifted from the actual fabric. In the set of binding warps, the two warps stick to each other, function as one warp constituting the upper surface side complete structure on the upper surface, and configure the lower surface side complete structure on the lower surface. It functions as a warp for a book.
In the present invention, it is essential that the fabric is a two-layer woven fabric with 24 shafts. However, in the case of 16 shafts composed of 8 upper surface side warps and 8 lower surface side warps, 4 × 4 satin weave is formed on the lower surface side layer. When the structure is formed, the lower weft long crimp structure cannot be formed, and the 14 shaft composed of 7 upper surface side warps and 7 lower surface side warps is composed of an odd number of lower warp yarns. This is because it is not possible to repeat two identical organizations.

Example 1
FIG. 1 is a design diagram of a fabric of Example 1 of the present invention. FIG. 2 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. In this woven fabric, a set of binding warps is uniformly arranged at a ratio of 3/12, and the arrangement ratio of the upper surface side wefts and the lower surface side wefts is 1: 1. In the design diagram of FIG. 1, 1, 5, 9 are sets of binding warps composed of two warp binding yarns, 2, 3, 4, 6, 7, 8, 10, 11, 12 are It is a set of warps composed of an upper surface side warp and a lower surface side warp.
The warp constituting the lower surface side passes through the upper side of six continuous lower surface side wefts, then passes the lower side of one lower surface side weft, and then passes the upper side of four continuous lower surface side wefts After that, it is a 6 / 1-4 / 1 structure passing through the lower side of one lower surface side weft, the warp of that structure is shifted by two wefts and arranged adjacent to it, and the warp is adjacent to six wefts The arrangement is shifted, and the adjacent structure is shifted in order of 2 and 6 wefts to form a complete structure of 12 warps. As a result, the lower surface side weft passes through the lower side of five continuous lower surface side warps and then repeats the structure passing through the upper side of one lower surface side warp.
The two warp binding yarns constituting the binding warp group have the same structure, and the two cooperate to form the same plain weave structure on the upper surface side as the other upper surface side warps. The same 6 / 1-4 / 1 structure as the other lower surface side warps is formed. It can be seen well from the two cross-sectional views of FIG.
FIG. 21 shows a design diagram of the lower surface side layer for explaining the structure of the lower surface side layer common to the present invention. A 4 × 4 satin weave structure composed of 4 warps and 4 wefts is indicated by shading. The 4 × 4 satin weave structure referred to in this specification is composed of four warps and four wefts, and the warp passes below the one weft and then passes above the three wefts. In the structure, the weft is a structure that passes the upper side of one warp and then passes the lower side of three warps. The warp arranged next to one warp is shifted by one weft, the next warp is shifted by two wefts, the next warp is shifted by three wefts, and the next warp is two wefts. Even if it is shifted by a minute, it will return to the original. By such an irregular shift, two twills are formed in the 4 × 4 satin weave structure, a twill going to the right diagonal direction and a twill going to the left diagonal direction.

For example, in the four lower surface side warps 1, 2, 3, 4 and the four lower surface side wefts 1 ', 2', 3 ', 4' in FIG. Are formed, and warps 3 and 4 are formed with a twill in a diagonally left direction. The same applies to the other regions, and thus a twill with different directions exists in one block. When the twill direction is one direction, the fabric travels on the inclined side, causing the fabric to meander or deform. However, since the twill extends in two different directions, the fabric of the present invention has a strong oblique rigidity and is unlikely to cause meandering or deformation.
And in the lower surface side layer of this invention, in addition to such a 4 × 4 satin weave structure, a 2 × 4 non-woven portion exists. This is composed of two warps and four wefts, where the weft overlaps under the warp. There are always 4 × 4 satin weaves next to the 2 × 4 non-woven portions, which are alternately arranged. In the lower surface side layer of FIG. 21, four lower side warp yarns 1 ′, 2 ′, 3 ′, 4 ′ are interwoven with four lower surface side warps 1, 2, 3, 4 next to four yarns. There are two warps 5, 6 that are not interwoven with the lower side wefts 1 ', 2', 3 ', 4', and next to the four warps 7, 8, 9, 10, and 4 next to them. There are two warp yarns 11 and 12 which are not interwoven with the lower surface side wefts 1 ', 2', 3 'and 4'. That is, the lower surface side layer is configured by repeating the 6 × 4 blocks arranged in the horizontal direction, which are composed of four and two warps. By adopting such a structure, the lower weft long crimp passes through the lower side of the five lower surface side warps where the lower surface side weft continues in the complete structure, and then passes through the upper side of one lower surface side warp. It becomes the organization to form. In addition to oblique rigidity and running stability, wear resistance can also be obtained. The lower surface side layer of Example 1 in FIG. 1 has the same structure and is excellent in running stability and wear resistance.
The upper surface has a plain weave structure in which the warp passes alternately through the upper and lower sides of one upper surface weft. A set of binding warps is also arranged in the complete structure, but since the warp binding yarns constitute both the upper surface and the lower surface in addition to the binding function, the upper surface side It becomes a woven fabric excellent in surface properties without destroying the plain weave structure of the surface. Further, since the binding yarns are arranged in the longitudinal direction where tension is applied during traveling, the binding strength is high and there is no fear of internal wear.

(Example 2)
FIG. 3 is a design diagram of the fabric of Example 2 of the present invention. FIG. 4 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. This woven fabric has the same binding ratio and weft ratio as in the previous embodiment, but has a different surface structure.
The warp constituting the lower surface side surface has a 6 / 1-4 / 1 structure, the lower surface side wefts have a 1/5 structure, and the upper surface side surface has a satin weave structure. Since the upper surface side layer and the lower surface side layer have a satin weave structure, the diagonal rigidity is very strong. The two warp binding yarns constituting the binding warp pair have different structures, and the two cooperate to form the same 1/3 structure on the upper surface side as the other upper surface side warps. The same 6 / 1-4 / 1 structure as the other lower surface side warp is formed on the lower surface side surface. It can be seen well from the two cross-sectional views of FIG.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so that it has excellent oblique rigidity and running stability, and it is a lower crimp side long crimp structure for 5 warps, so it is wear resistant. Excellent in properties.

(Example 3)
FIG. 5 is a design diagram of the fabric of Example 3 of the present invention. FIG. 6 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. This woven fabric has the same binding ratio and weft ratio as in the previous embodiment, and the set of binding warps is composed of upper surface side warps and warp binding threads.
The warp constituting the lower surface side surface has a 6 / 1-4 / 1 structure, the lower surface side wefts have a 1/5 structure, and the upper surface side surface has a plain weave structure. The set of binding warps is composed of upper surface side warps and warp binding yarns. The warp binding yarn passes under the lower surface side weft and functions as a function of weaving the upper and lower layers and as a part of the structure of the upper surface layer and the lower surface layer. That is, the warp binding yarn passes through the upper side of the upper surface side weft to which the upper surface side warp should pass, and the upper surface side warp and the warp binding yarn cooperate with each other on the upper surface side surface. A structure corresponding to one warp is formed. The lower surface side layer is formed by weaving warp binding yarns and lower surface side wefts. In this way, a surface plain weave structure is formed on the upper surface side as in Example 1, and a lower surface side weft long crimp is formed on the lower surface surface.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

Example 4
FIG. 7 is a design diagram of a fabric of Example 4 of the present invention. FIG. 8 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. The weft ratio is the same as in the previous embodiment, but the binding ratio is as low as 2/12. However, at this level, the binding force is sufficient and the upper and lower layers do not loosen.
The warp constituting the lower surface side surface has a 6 / 1-4 / 1 structure, the lower surface side wefts have a 1/5 structure, and the upper surface side surface has a plain weave structure. The two warp binding yarns constituting the binding warp group have the same structure, and the two cooperate to form the same plain weave structure on the upper surface side as the other upper surface side warps. The same 6 / 1-4 / 1 structure as the other lower surface side warps is formed.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

(Example 5)
FIG. 9 is a design diagram of the fabric of Example 5 of the present invention. FIG. 10 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. This fabric has the same binding ratio and weft ratio as in Example 3, and the set of binding warps is composed of a lower surface side warp and a warp binding thread.
The warp constituting the lower surface is a 6 / 1-4 / 1 structure, the lower weft is a 1/5 structure, and the upper surface is a twill structure. The set of binding warps is composed of a lower surface side warp and a warp binding yarn. The warp binding yarn functions to weave the upper and lower layers through the upper side of the upper surface side weft and the lower side of the lower surface side weft and to function as part of the structure of the upper surface layer and the lower surface layer. Yes. That is, the warp binding yarn passes through the lower side of the lower surface side weft where the lower surface side warp should pass, and the lower surface side warp and the warp binding yarn cooperate with each other to lower the lower surface side surface. A structure corresponding to one side warp is formed. The upper surface side layer is formed by weaving warp binding yarns and upper surface side wefts. In this way, the surface on the upper surface side is the surface twill texture as in Example 5, and the lower surface side weft long crimp is formed on the surface on the lower surface side.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

(Example 6)
FIG. 11 is a design diagram of a fabric according to Example 6 of the present invention. FIG. 12 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. The binding ratio is 3/12 as in Examples 1 to 3, but the weft ratio is different and the placement ratio of the lower side weft is 2: 1. However, the weft ratio of the woven fabric of the present invention may be any, and even if such a ratio, the effect is not changed.
The warp constituting the lower surface side surface has a 6 / 1-4 / 1 structure, the lower surface side wefts have a 1/5 structure, and the upper surface side surface has a plain weave structure. The two warp binding yarns constituting the set of binding warps are different structures, and the two cooperate to form the same plain weave structure on the upper surface side as the other upper surface side warps. The same 6 / 1-4 / 1 structure as the other lower surface side warps is formed.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

(Example 7)
FIG. 13 is a design diagram of a fabric according to Example 7 of the present invention. FIG. 14 is a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. This fabric has the same binding ratio and weft ratio as in Example 6, and the set of binding warps is composed of upper surface side warps and warp binding threads.
The warp constituting the lower surface is a 6 / 1-4 / 1 structure, the lower weft is a 1/5 structure, and the upper surface is a twill structure. The set of binding warps is composed of upper surface side warps and warp binding yarns. The warp binding yarn passes under the lower surface side weft and functions as a function of weaving the upper and lower layers and as a part of the structure of the upper surface layer and the lower surface layer. In other words, the warp binding yarn passes the upper side of the upper surface side weft through which the upper surface side warp should pass instead of the upper surface side warp to form the upper surface side surface structure, and these two cooperate to form the upper surface side warp 1 It forms the organization of this. In this way, a twill texture is formed on the upper surface and a lower surface weft long crimp is formed on the lower surface.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

(Example 8)
FIG. 15 is a design diagram of a fabric according to Example 8 of the present invention. FIG. 16 is a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. The binding ratio is 3/12 as in Example 7, but the weft ratio is 4: 3. However, the weft ratio of the woven fabric of the present invention may be any, and even if it is the ratio as in this embodiment, the effect is not changed.
The warp constituting the lower surface side surface has a 6 / 1-4 / 1 structure, the lower surface side wefts have a 1/5 structure, and the upper surface side surface has a satin weave structure. The two warp binding yarns constituting the set of binding warps have different structures, and the two cooperate to form the same 1/3 structure as the other upper surface side warps on the upper surface. The same 6 / 1-4 / 1 structure as the other lower surface side warps is formed on the side surface.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

Example 9
FIG. 17 is a design diagram of a fabric of Example 9 according to the present invention. FIG. 18 shows a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. The binding ratio is 3/12 as in Example 7, but the weft ratio is different and is 3: 2. However, the weft ratio of the woven fabric of the present invention may be any, and even if it is the ratio as in this embodiment, the effect is not changed.
The warp constituting the lower surface side surface has a 6 / 1-4 / 1 structure, the lower surface side wefts have a 1/5 structure, and the upper surface side surface has a plain weave structure. The two warp binding yarns constituting the binding warp group have different structures, and the two cooperate to form the same plain weave structure on the upper surface side as the other upper surface side warps. The same 6 / 1-4 / 1 structure as the other lower surface side warps is formed on the surface.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

(Example 10)
FIG. 19 is a design diagram of a fabric of Example 9 according to the present invention. FIG. 20 is a cross-sectional view of the binding warp group 1 and the warp group 2 in the design diagram of FIG. The binding ratio is 3/12 as in Example 9, and the weft ratio is 3: 2 as in Example 8.
The warp constituting the lower surface is a 6 / 1-4 / 1 structure, the lower weft is a 1/5 structure, and the upper surface is a twill structure. The two warp binding yarns constituting the set of binding warps have different structures, and the two cooperate to form the same 1/3 structure as the other upper surface side warps on the upper surface. The same 6 / 1-4 / 1 structure as the other lower surface side warps is formed on the side surface.
As in the previous example, the structure of the lower surface side layer is based on a 4 × 4 satin weave structure, so it has excellent oblique rigidity and running stability, and because it is a weft long crimp structure for 5 warps, it is wear resistant. Excellent.

  Since it is excellent in oblique rigidity, running stability, and abrasion resistance, it is suitable as an industrial fabric used under severe conditions such as paper fabric and filter fabric.

It is a design figure of the industrial two-layer fabric of Example 1 of the present invention. FIG. 2 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 1. It is a design figure of the industrial two-layer fabric of Example 2 of the present invention. FIG. 4 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 3. It is a design figure of the industrial two-layer fabric of Example 3 of the present invention. FIG. 6 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 5. It is a design figure of the industrial two-layer fabric of Example 4 of the present invention. FIG. 8 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 7. It is a design figure of the industrial two-layer fabric of Example 5 of the present invention. FIG. 10 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 9. It is a design figure of the industrial two-layer fabric of Example 6 of the present invention. FIG. 12 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 11. It is a design figure of the industrial two-layer fabric of Example 7 of the present invention. FIG. 14 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 13. It is a design figure of the industrial two-layer fabric of Example 8 of the present invention. FIG. 16 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 15. It is a design figure of the industrial two-layer fabric of Example 9 of the present invention. FIG. 18 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 17. It is a design figure of the industrial two-layer fabric of Example 10 of the present invention. FIG. 20 is a cross-sectional view along the warp of the binding warp group 1 and the warp group 2 of FIG. 19. It is the design figure which showed the structure | tissue of the lower surface side layer of this invention.

Explanation of symbols

1, 2, 3 ... 10 Set of binding warp or warp 1'-36 'Upper surface side weft, lower surface side weft

Claims (5)

The upper surface side warp and the 12 lower surface side warps are arranged in the upper and lower sides, 12 sets of warp yarns, a plurality of upper surface side wefts and lower surface side wefts, and at least one of the 12 sets of warp yarns. In an industrial two-layer fabric in which one or more sets of binding warp yarns, which are warp binding yarns interwoven with both upper surface side wefts and lower surface side wefts, are arranged.
The lower side warp passes through the upper side of six consecutive lower surface side wefts, then passes the lower side of one lower surface side weft, and then passes the upper side of four consecutive lower surface side wefts. A structure that passes under the lower side weft,
The adjacent 12 warps constituting the lower surface side are shifted by two lower surface side wefts, and then the adjacent warp is sequentially shifted to the lower surface side wefts to form the complete structure of the lower surface layer.
The lower surface side weft passes below the continuous five lower surface side warps, passes the upper side of one lower surface side warp, and then passes below the five consecutive lower surface side warps. An industrial two-layer woven fabric characterized by having a structure passing through the upper side of the lower side warp.   A set of binding warps consists of two warp binding yarns, or one warp binding yarn and one upper surface side warp, or one warp binding yarn and one lower surface. It consists of side warps, and the two warps forming these sets cooperate to form a structure equivalent to one warp on the upper surface and the lower surface on the upper surface and the lower surface. The industrial two-layer woven fabric according to claim 1, characterized in that it is formed.   The upper surface side warp interwoven with the upper surface side weft, the set of warps where the lower surface side warp interwoven with the lower surface side weft is arranged vertically, and at least one of the upper surface side warp and the lower surface side warp is the upper surface side weft The industrial warp according to claim 1 or 2, characterized in that a set of binding warps, which are warp binding yarns interwoven with both the lower surface weft and the lower side weft, is arranged in a ratio of 3: 1. Double-layer fabric.   The industrial two-layer fabric according to any one of claims 1 to 3, wherein the ratio of the number of upper side wefts and lower side wefts is 1: 1 to 2: 1.   The industrial two-layer woven fabric according to any one of claims 1 to 4, wherein the structure of the upper surface side layer is any one of a plain weave, a twill weave, and a satin weave.

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