JP3938526B2 - Industrial multilayer fabric - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to industrial fabrics such as papermaking fabrics, conveyor belts, filter fabrics and the like.
[0002]
[Prior art]
Conventionally, fabrics woven with warp and weft yarns have been widely used as industrial fabrics. For example, they are used in many other fields such as papermaking wires, conveyor belts, filter fabrics, etc. Woven properties are required. In particular, the demands for papermaking wires used in the papermaking process that uses the mesh of the fabric to dehydrate the raw materials are severe, and the fabric has excellent surface properties that do not transfer the fabric wire mark to the paper. Therefore, there is a demand for a fabric that has sufficient rigidity to be suitably used even in a harsh environment, and that can maintain the conditions necessary for producing good paper for a long period of time. In addition, fiber support, improvement in papermaking yield, good freeness, wear resistance, dimensional stability, running stability, and the like are required. In recent years, the speed of papermaking machines has increased, and the demand for papermaking wires has become more severe.
As described above, the papermaking fabrics, which are particularly 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.
For example, when the paper making speed is increased, the dewatering speed is inevitably increased, and it is necessary to increase the dewatering power. Naturally, the loss of fibers, fillers, etc. and the occurrence of wire marks become prominent, and further improvements in fiber support and surface properties are required. In addition, when the wet paper is deepened into the papermaking fabric or when the fiber is pushed in, the wet paper releasability when the wet paper is transferred to the felt also deteriorates. The wet paper formed on the fabric is pressed against the surface of the fabric by the dehydration force, so the yarn is difficult to wet in the area where the yarn is present, and conversely, the wet paper is between the mesh where there is no yarn. This is because a thread and a mesh mark are generated on the surface of the wet paper. Although it is impossible to eliminate the wire mark completely, in order to make it less noticeable as much as possible, the surface of the upper layer of the fabric must be made fine to improve surface smoothness and fiber support. However, fine woven fabrics that emphasize surface properties and fiber support are basically inferior in wear resistance because they are woven with yarns having a small wire diameter.
In addition, since the papermaking fabric travels at a high speed, there is a phenomenon in which the fabric gradually wears due to friction with a roll or the like on the traveling surface side that comes into contact with the machine, and the wear may end its life. In order to improve the wear resistance, various measures are required such as changing the fabric structure to a weft-worn type structure or changing the material of the thread. Etc. are generally used. However, although the yarn having a large wire diameter has improved wear resistance, it has been difficult to obtain excellent surface properties.
In order to solve both the surface property and the abrasion resistance problem, two fabrics composed of different warps and wefts are used for the upper surface side layer and the traveling surface side layer, and the fabrics of both layers are connected. Two-layer fabrics integrated by tying have been used. This method has an effect that a fabric according to the performance required for each method can be adopted. A dense upper layer surface was formed using warps and wefts having a small wire diameter on the upper surface side layer, and a running surface having high wear resistance was formed using warps and wefts having a large wire diameter on the traveling surface side layer. In order to prevent the surface property from being deteriorated, generally, a yarn having a diameter smaller than that of the upper surface side warp and the upper surface side weft is used for the binding yarn. A plain weave is often used to form a dense surface on the upper surface side structure. However, since a binding yarn is actually used to interweave two layers, the binding yarn is occasionally placed on the surface of the substantially plain weave. The surface arrange | positioned in will be formed. Since the binding yarn has a portion that appears on the surface in this way, it is not preferable to use a yarn having a very large wire diameter because of surface smoothness.
[0003]
Also, as normal papermaking fabrics, tension is often applied in the warp direction during use, and warp yarns are hardly moved loosely by running of the fabric because warp yarns are always in tension. However, in the case of binding yarns that are often placed between wefts due to problems such as weaving properties and fiber supportability, they are stretched when tension is applied, and the binding yarns are trapped between the upper surface side layer and the traveling surface side layer. There was a problem that internal wear occurred and a gap was generated or separated between fabrics. This is because the endless fabric is running while being laid on several rolls. At the part where the fabric comes into contact with the roll, the two-layer fabric is curved along the arc of the roll, and there is a difference in circumference between the layers of the fabric. Arise. As a result, the binding yarns interweaving the layers are squeezed and internal wear occurs. Internal wear is often seen in binding yarns with small wire diameters used to improve surface properties. The binding force of the upper surface side layer and the running surface side layer of only the binding yarn having a small wire diameter was insufficient. In addition, the binding yarn is entangled with the yarn on the upper surface side layer to connect the two fabrics, and the surface property of the fabric is deteriorated by giving a dent to the surface on the upper surface side to draw the yarn by the binding force. There was also.
Accordingly, development of multilayer fabrics using warp binding yarns that weave the upper surface side layer and the running surface side layer while forming the upper surface side surface on the warp yarn has been carried out. In the upper surface side layer, an upper surface side surface was formed by weaving an upper surface side warp and a warp binding yarn as the warp forming the upper surface. The running surface side layer was formed by running surface side warps and running surface side wefts. Furthermore, for the purpose of improving the binding force and making the mesh uniform, fabrics and the like have been developed in which all of the warp forming the upper surface layer is a warp binding yarn.
By making the binding yarn that weaves the two layers in this way into warp ground yarn binding yarn, the binding force is strengthened to prevent the occurrence of internal wear, and the woven fabric does not deteriorate the surface properties. Can do. However, multilayer fabrics have problems other than the binding force and surface properties. For example, even in a structure using warp binding yarn binding yarn, if the dewaterability is not uniform, the wet paper may be marked. This may be caused by the fact that the running surface side layer has a weft wear type structure in order to improve the wear resistance. In many cases, the weaving type is used for the surface of the running surface in contact with the machine so that the life of the papermaking fabric or the like does not run out due to wear. Usually, the woven fabric runs along the direction of the warp in a state where tension is applied in the extension direction of the warp. However, if the warp is cut due to abrasion or the like, it cannot be used any more. In order to reduce the wear of the warp, it is difficult to cut the warp by mainly applying the wear to the weft. However, in this weft wear type structure, since a groove in the width direction is generated between the wefts, it becomes difficult for a part of a dehydrating device such as a foil or a blade to enter the groove like a wedge and run smoothly. In some cases, it was impossible to continue the use due to severe wear such as the lower weft being hit.
[0004]
[Problems to be solved by the invention]
In view of the above problems, the present invention is a set of two warp yarn binding yarns that are interwoven with upper surface side wefts to form a part of the upper surface side surface and connect the upper surface side layer and the running surface side layer. By arranging and using a warp wear type structure on the running surface side layer, internal wear, yarn fibrillation, yarn misalignment does not occur even in a machine with high speed and high dewatering capability, and freeness is reduced. An object of the present invention is to provide an industrial multilayer fabric that is uniform, has a strong binding force, is excellent in surface smoothness, and can smoothly run on a dehydrator and can be used for a long time.
[0005]
[Means for Solving the Problems]
The present invention
“1. Industrial multilayer fabric comprising at least an upper surface side layer and a traveling surface side layer, and connecting the upper surface side layer and the traveling surface side layer by warp binding yarns that weave the upper surface side layer and the traveling surface side layer. In Two warp binding yarns are formed in one set, and the two warp binding yarns appear alternately on the upper surface side, and the upper surface side warp 1 is substantially formed on the upper surface side weft and the non-weaving upper surface side surface. An organization that forms the organization An industrial multilayer fabric characterized in that a long crimp is formed on the traveling surface side through a lower side of a plurality of traveling surface side wefts in which traveling surface side warps are continuous.
2. The position where the warp ground yarn binding yarn passes the lower side of the traveling surface side weft and connects the traveling surface side layer is on the upper surface side between the portions where the traveling surface side weft passes the lower side of the traveling surface side warp. 2. The industrial multilayer fabric according to item 1, wherein the industrial multilayer fabric is in an approaching position.
3 . The warp binding yarn is a part or all of the position between the upper part of one or two upper surface side wefts, and the binding yarn is lowered to the traveling surface side and below the traveling surface side weft. 3. The industrial multilayer fabric according to item 1 or 2, which is a binding yarn passing through the side.
4 . A pair of auxiliary weft binding yarns that pass over the upper side of two or more upper surface side warps adjacent between the upper surface side wefts to form a crimp on the upper surface side surface are arranged in one set, and the two sets of auxiliary weft yarns 1 to thru | or characterized by forming a structure | tissue for one auxiliary weft binding yarn substantially on the upper surface side without the binding yarn appearing on the upper surface side alternately, and on the upper surface side without an upper surface side warp. 3 Item 4. The industrial multilayer fabric according to any one of items. "
About.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The industrial fabric of the present invention is used as an industrial fabric such as a papermaking wire, a conveying belt, and a filter cloth, and can be suitably used as a papermaking wire that is particularly demanding by users.
The present invention comprises at least an upper surface side layer and a traveling surface side layer, and a warp base yarn binding yarn that interweaves the upper surface side layer and the traveling surface side layer while forming the upper surface side surface of a part or all of the upper surface side warp. The running surface side structure was a warp wear type two-layer fabric. With such a structure, there is no internal wear, yarn fibrillation, or yarn misalignment even on a machine with high speed and high dewatering capacity, uniform drainage, binding force, and surface smoothness. The fabric can be used for a long period of time because it is excellent in performance and can smoothly run on the dehydrator.
In the multilayer fabric of the present invention, warp binding yarns that connect the upper surface side layer and the running surface side layer while arranging a part of the upper surface side surface are arranged in the running direction of the fabric. The upper surface side surface of the fabric is woven with the upper surface side wefts to form a dense surface.
In addition, the running surface side fabric structure was a warp wear type structure passing under the plurality of running surface side wefts where the running surface side warps continued. The position at which the warp ground yarn binding yarn passes below the running surface side weft and connects the running surface side layer is the upper surface side between the portions where the running surface side weft passes below the running surface side warp. The position is close to
[0007]
The effect of binding the woven fabric with the warp yarn binding yarn, which is a feature of the present invention, is different from the conventional binding yarn that does not participate in the formation of the surface structure only by binding, the warp yarn binding yarn. Appears on the upper surface side surface and forms a part of the fabric surface like the upper surface side warp, so that the surface texture is not affected. In addition, warp binding yarns are used in the warp direction, that is, generally in the running direction and are always under tension. It tends to be strong. In particular, when two warp binding yarns are arranged in one set, the binding force can be further strengthened, but one set of two warp yarn binding yarns is one or two. The upper surface side weft passes above the upper surface side weft and weaves the upper surface side weft to form the surface, and the other warp ground yarn binding yarn is woven with the running surface side weft. That's fine. The two warp ground yarns appear alternately on the upper surface and function like a single warp, so that the surface structure is not destroyed.
In addition, a structure using a single warp binding yarn may be used. For example, there is a structure in which one warp binding yarn and a running surface side warp are arranged vertically. The structure of the warp binding yarn at that time is that the warp binding yarn is lowered to the running surface at a part or all of the position between the upper part of one or two upper surface side wefts. Thus, it may be a structure passing under the running surface side weft. Even in such a structure, the two-layered fabric can be firmly bonded without breaking the surface structure.
In addition to the warp base yarn binding yarn, the upper surface side warp may be arranged on the warp forming the upper surface side surface. In order to fabricate paper with good surface properties without wire marks, the upper surface side warp and warp ground yarn binding yarn should have a dense surface woven through one or two upper surface side wefts passing below and below. A structure to be formed is preferable. In particular, if the surface of the woven fabric composed of the upper surface side warp, warp binding yarn and upper surface side weft is a plain weave structure, the fiber support points will be increased and the fiber support will be improved, and the texture will be fine and the surface smoothness will be excellent. There is an effect.
[0008]
The running surface side warp has a warp wear type structure. This is because the warp wear type structure does not cause a widthwise groove formed between the wefts seen in the weft wear type fabric. In fabrics with a weft wear type structure, a dewatering device such as a foil or a blade enters the groove in the width direction like a wedge, and the weft on the traveling surface side may be subjected to intense wear as if hit. This is a phenomenon that occurs because dewatering devices such as foils and blades are arranged extending in the same direction as the extending direction of the grooves existing between the wefts. In order to eliminate the groove in the width direction formed between the wefts, a warp wear type structure was adopted. As a result, the fabric can run smoothly on the dehydrating device, and the load increase can be suppressed without causing severe wear on the running surface side wefts and running surface side warps contacting the dehydrating device such as foil and blade. Also has a great effect. In addition, the warp wear type structure allows the running surface side weft to form an upward crimp, and the warp ground yarn binding yarn binds the running surface side fabric at the position where the crimp approaches the upper surface side. Is possible. That is, the position where the warp ground yarn binding yarn passes under the running surface side weft and binds the running surface side fabric is between the portions where the running surface side weft passes under the running surface side warp. The position is close to the upper surface side. By having such a structure, the warp binding yarn is not drawn suddenly to the running surface side, so that there is no occurrence of local recesses, and the paper with good surface properties and no wire mark. Can be made.
[0009]
In the woven fabric of the present invention, depending on circumstances, a structure may be adopted in which two auxiliary weft binding yarns are arranged between the upper surface side wefts. By arranging the auxiliary weft binding yarn, the fiber support and binding force can be improved. The structure of the auxiliary weft binding yarn passes through the upper side of two or more upper side warps to form a crimp on the upper side surface, and the other runs on the lower side where one side forms the upper side surface. A structure in which the surface side layers are woven together, and two sets of auxiliary weft binding yarns appear alternately on the upper surface side and are not woven with the upper surface side warp yarns, forming a structure for one substantial auxiliary weft binding yarn on the upper surface side. . The upper surface side warp here includes not only the upper surface side warp, but also includes one in which one set is counted as one upper surface side warp when two warp binding yarns are arranged in one set. In the case of a structure in which a pair of warp base yarn binding yarns and one upper surface side warp are alternately arranged, two or more adjacent upper surface side warps are arranged adjacent to at least one upper surface side warp. This refers to the structure that passes above the set of warp binding yarns.
The structure of the warp ground yarn binding yarns and auxiliary weft binding yarns arranged in a pair may be the same or different. Since these are upper surface-side surface constituent yarns, a set of two warp ground yarn binding yarns and auxiliary weft binding yarns form a structure corresponding to one actual warp yarn and one auxiliary weft yarn on the surface of the fabric. Any organization that does not harm it.
[0010]
The yarn used in the present invention may be selected depending on the application 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 doan 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. 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, and the like 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.
As a papermaking wire, it is generally preferable to use a polyester monofilament having rigidity and excellent dimensional stability for the upper surface side warp, the running surface side warp, and the upper surface side weft. As the warp binding yarn, it is preferable to use a polyester monofilament similar to the upper side warp. The types and wire diameters of the upper surface side warp and warp binding yarn may be the same or different, and can be selected as needed from the nature of the fabric, weaving properties, and the like. However, since the roles of the upper surface side warp and the warp ground yarn binding yarn are different, and the warp ground yarn binding is disposed between the warp yarns in pairs, it is better to use different yarns. The auxiliary weft binding yarn is preferably made of polyester or polyamide monofilament depending on the structure and other conditions.
In addition, it is possible to improve wear resistance while ensuring rigidity by interweaving polyester monofilaments and nylon monofilaments alternately on the running surface side wefts that require wear resistance.
[0011]
【Example】
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on examples with reference to the drawings.
1, 3 and 4 are design diagrams showing the complete structure of the embodiment of the present invention. The complete structure is a minimum repeating unit of the woven structure, and this complete structure is connected vertically and horizontally to form the entire structure of the woven fabric. In the design drawing, warps and warp binding yarns are indicated by Arabic numerals, for example, 1, 2, 3, and odd numbers 1a, 1b, 3a, 3b,. The even number numbers 2, 4, 6... Are arranged such that the upper surface side warp and the traveling surface side warp are arranged one above the other. Weft and auxiliary weft binding yarns are indicated by Arabic numerals with dashes, for example, 1 ′, 2 ′, 3 ′, and numbers 3a ′, 3b ′, 6a ′, 6b ′,. Otherwise, the upper surface side weft and the traveling surface side weft are arranged vertically. The x mark indicates that the upper surface side warp or warp binding yarn passes through the upper side of the upper surface side weft to form a crimp, and the □ mark indicates that the traveling surface side warp is located above the traveling surface side weft. △ indicates that the warp ground yarn binding yarn is located below the running surface side weft, and ● indicates the auxiliary weft binding yarn is the upper surface side warp or warp ground yarn binding. It indicates that a crimp is formed on the upper surface through the upper side of the binding yarn, and a mark ◯ indicates that the auxiliary weft binding yarn is located below the running surface side warp.
In this embodiment, the upper surface side weft and the traveling surface side weft, the upper surface side warp and the traveling surface side warp are arranged on top of each other for convenience in the design drawing, but may be displaced in an actual fabric. .
[0012]
Example 1
In the design diagram of FIG. 1, the warp base yarn binding yarns and the upper surface side warp yarns that are paired with the warp forming the upper surface side are alternately arranged, and one set of warp base yarn binding yarns is equivalent to one warp. This is a 10-layer two-layer fabric in which the upper surface side warp and the running surface side warp are arranged one above the other. 1a and 1b are paired and weaved with the upper surface side weft to form a plain weave structure on the upper surface side for one upper surface side warp. Next to that, the upper surface side warp 2 is interwoven with the upper surface side weft and plain weave Is forming. Therefore, a plain weave structure is formed by warps and wefts even on the entire surface of the fabric.
As the structure of the warp binding yarn, the warp binding yarn 1a passes over the upper surface side weft 1 ', then passes between the upper surface side weft 2' and the running surface side weft 2 ', and then the upper surface. Passes over the upper side of the side weft 3 ', then passes between the upper surface side wefts 4', 5 ', 6' and the running surface side wefts 4 ', 5', 6 'and then the lower side of the running surface side weft 7' , And then passed between the upper surface side wefts 8 ′, 9 ′, 10 ′ and the traveling surface side wefts 8 ′, 9 ′, 10 ′. The warp ground yarn binding yarn 1b paired therewith passes between the upper surface side wefts 10 ', 1' and the traveling surface side wefts 10 ', 1', and then passes below the traveling surface side weft 2 ', Next, it passes between the upper surface side wefts 3 'and 4' and the traveling surface side wefts 3 'and 4', then passes over the upper surface side wefts 5 ', and then the upper surface side wefts 6' and the traveling surface side wefts 6 ' This is a structure that passes between the upper surface side weft yarns 7 ', the upper surface side weft yarns 8' and the traveling surface side weft yarns 8 ', and then the upper surface side weft yarns 9'. As a result, the warp base yarn binding yarn 1a is woven with the upper surface side weft yarns 1 ', 2', 3 ', and the warp base yarn binding yarn 1b paired therewith is the running surface side weft yarn 2 The lower side where the running surface side layer is woven through the lower side of ′ and the warp ground yarn binding yarn 1b is woven with the upper surface side wefts 5 ′, 6 ′, 7 ′, 8 ′, 9 ′. It can be seen that the warp binding yarn 1a paired therewith passes through the lower side of the traveling surface side weft 7 'and weaves the traveling surface side layer. Further, 3a and 3b, 5a and 5b,... 9a and 9b have the same structure, and each is arranged so as to be shifted downward by two wefts. In this embodiment, the two warp binding yarns are a combination of different structures, but may be a combination of the same structures. The arrangement order of the two warp binding yarns is always the same, but the arrangement may be alternated.
An upper surface side warp and a running surface side warp are arranged vertically next to the pair of warp base yarn binding yarns. The structure of the upper surface side warp is a plain weave structure formed by alternately passing above and below one upper surface side weft. On the upper surface side surface, a pair of warp ground yarn binding yarns and one upper surface side warp yarn are alternately arranged, but the present invention is not limited to this and can be changed as appropriate. When it is desired to strengthen the binding force, the arrangement ratio of the warp base yarn binding yarn can be increased.
The running surface side warp has a warp wear type structure that passes through the lower side of four running surface side wefts after passing through the upper side of one running surface side weft. By adopting such a structure, a groove in the width direction between the wefts that occurred in the weft-wear type structure does not occur, so that no severe wear occurs on the running surface side wefts and running surface side warps, and the foil It is possible to smoothly run on a dehydrating device such as a blade and a blade, and it is difficult for load fluctuations to occur.
In addition, the warp wear type structure allows the running surface side weft to form an upward crimp, and the warp ground yarn binding yarn binds the running surface side fabric at the position where the crimp approaches the upper surface side. Is possible. By adopting such a structure, the warp ground yarn binding yarn is not suddenly drawn to the running surface side. 2 is a cross-sectional view taken along the weft 1 'of the design diagram of FIG. The traveling surface side weft 1 ′ passes through the lower side of the traveling surface side warp 2 once in one cycle and passes through the upper side of the continuous traveling surface side warps 4, 6, 8, 10 to form an upward crimp. Since the traveling surface side weft 1 ′ is woven by the traveling surface side warp 2, the traveling surface side weft 1 ′ is the crimp that is closest to the upper surface side layer around the warp ground yarn binding yarn 7 at the substantially central portion thereof. The warp binding yarn also weaves the traveling surface side layer once in one cycle, and the binding portion is located at the portion where the upward crimp of the traveling surface side weft approaches the upper surface side layer. When the warp ground yarn binding yarn is bound at this position, even if the warp ground yarn binding yarn generally has a smaller wire diameter than the running surface side weft, it is not strongly drawn into the running surface side weft, There is no dent on the surface of the fabric. If the binding portion of the warp ground yarn binding yarn is near the warp ground yarn binding yarn 3 where the running surface side weft is relatively strong, the warp ground yarn binding yarn is interwoven with the running surface side weft. It is strongly pulled down by the force and forms a local recess on the upper surface.
[0013]
As described above, in the first embodiment of the present invention shown in FIG. 1, the warp ground yarn binding yarns are arranged in a pair, the running surface side layer is a warp wear type structure, and the drawing is performed by the warp ground yarn binding yarns. With a structure that connects at a small position, there is no internal wear, yarn fibrillation, or yarn misalignment, even with a machine with high speed and strong dewatering capability. It is possible to provide an industrial multilayer fabric that has a strong binding force, excellent surface smoothness, and that can smoothly run on a dehydrator and can be used for a long time. In this embodiment, two warp binding yarns are arranged as a set, but a structure using one warp binding yarn may be used. For example, there is a structure in which one warp binding yarn and a running surface side warp are arranged vertically. At this time, the structure of the warp binding yarn is formed by passing the upper side of one or two upper surface side wefts to form the upper surface, and a part between the upper surface side knuckles of the warp binding yarns. Or it is good also as a structure | tissue which goes down to a running surface side in all the positions, and passes the lower side of a running surface side weft. In this case, even in a structure in which the upper surface side warp and one warp ground yarn binding yarn are arranged, two layers of the woven fabric can be firmly bonded without breaking the upper surface side surface structure.
[0014]
Example 2
The design diagram of FIG. 3 is another embodiment of the present invention and shows a 14-shaft multilayer fabric. The symbol and arrangement of the thread are the same as in FIG.
A structure in which warp ground yarn binding yarns and upper surface side warp yarns that are paired with the warp forming the upper surface side are alternately arranged, and two warp ground yarn binding yarns form a structure of one warp. The upper surface side warp and the running surface side warp were arranged vertically. 1a and 1b are paired and weaved with the upper surface side weft to form a plain weave structure on the upper surface side for one upper surface side warp. Next to that, the upper surface side warp 2 is interwoven with the upper surface side weft and plain weave Is forming. Therefore, a plain weave structure is formed by warps and wefts even on the entire surface of the fabric.
The warp yarn binding yarn 1b paired with the lower side where the warp yarn binding yarn 1a is interwoven with the upper surface side wefts 1 ', 2', 3 ', 4', 5 ', 6'. Passes through the lower side of the running surface side weft 4 'and weaves the running surface side layer, and the warp ground yarn binding yarn 1b is the upper surface side weft 8', 9 ', 10', 11 ', 12', 13 The warp ground yarn binding yarn 1a that is paired with the lower side where the yarns are interwoven with ', 14' passes the lower side of the running surface side weft 11 'and weaves the running surface side layer. Recognize. Further, 3a and 3b, 5a and 5b,... 9a and 9b have the same structure, and are arranged so as to be shifted by four wefts in the upward direction. In this embodiment, the two warp binding yarns are a combination of different structures.
An upper surface side warp and a running surface side warp are arranged vertically next to the pair of warp base yarn binding yarns. The structure of the upper surface side warp is a plain weave structure formed by alternately passing above and below one upper surface side weft.
[0015]
The running surface side warp has a warp wear type structure that passes through the lower side of six running surface side wefts that pass after passing the upper side of one running surface side weft. By adopting such a structure, a groove in the width direction between the wefts that occurred in the weft-wear type structure does not occur, so that no severe wear occurs on the running surface side wefts and running surface side warps, and the foil It is possible to smoothly run on a dehydrating device such as a blade and a blade, and it is difficult for load fluctuations to occur.
In addition, the warp wear type structure allows the running surface side weft to form an upward crimp, and the warp ground yarn binding yarn can bind the running surface side fabric close to the upper surface side. It becomes. By adopting such a structure, the warp ground yarn binding yarn is not suddenly drawn to the running surface side, and no dent is given to the upper surface side surface. The traveling surface side weft 1 ′ passes through the lower side of the traveling surface side warp 10 once in one cycle and passes through the upper side of the continuous traveling surface side warps 12, 14, 2, 4, 6, 8 to form an upward crimp. ing. Since the traveling surface side weft 1 ′ is woven by the traveling surface side warp 10, the uppermost surface side layer is the contact between the traveling surface side warp 10 and the warp ground yarn binding yarn 3 between the next traveling surface side warp. Crimp to approach. The warp binding yarn also weaves the traveling surface side layer once in one cycle, and the binding portion is located at the portion where the upward crimp of the traveling surface side weft approaches the upper surface side layer. When the warp ground yarn binding yarn is bound at this position, even if the warp ground yarn binding yarn generally has a smaller wire diameter than the running surface side weft, it is not strongly drawn into the running surface side weft, There is no dent on the surface of the fabric.
Thus, in Example 2 of the present invention shown in FIG. 3, the warp ground yarn binding yarns are arranged in a pair, and the running surface side layer has a warp wear type structure, so that the dewatering ability is high speed. Even a powerful machine will not cause internal wear, yarn fibrillation or yarn displacement, uniform drainage, strong binding force, excellent surface smoothness, and will slide on the dehydrator. Thus, it is possible to provide an industrial multilayer fabric that can run smoothly and can be used for a long time.
[0016]
Example 3
4 is another embodiment of the present invention, in which two sets of auxiliary weft binding yarns are arranged between the wefts of the fabric of Example 1. FIG. The auxiliary weft binding yarn has a structure in which a long crimp for four warps is formed in the weft direction on the upper surface side surface, so that the fiber supportability can be improved. Further, since the auxiliary weft binding yarn also serves as a binding yarn, it has the effect of improving the binding force of the fabric.
The structures of the upper surface side warp, the paired warp ground yarn binding yarn, the upper surface side weft, the traveling surface side warp, and the traveling surface side weft are the same as in FIG.
The structure of the two sets of auxiliary weft binding yarn passes through the upper side of the four consecutive upper surface side warps, then passes the lower side of the three consecutive upper surface side warps, and then the one running surface side It is a structure that passes under the warp and then passes under the two continuous upper surface side warps, one under the upper surface side and the other under the running surface side warp The traveling surface side layer was woven through the side. The structure of the auxiliary weft binding yarn is not limited to this. For example, two auxiliary weft binding yarns are combined for two warp yarns passing over the upper surface side warp, and four warp yarns are combined. It is good also as a structure | tissue which forms the long crimp which passes on the upper surface side warp. If one auxiliary weft binding yarn is a long crimp passing over the upper side of the upper side warp, the weaving force will be weak and the auxiliary weft binding yarn will move easily, making it difficult to supply a stable fabric. Therefore, it is necessary to consider. Of course, the auxiliary weft binding yarns in a two-piece set may have the same structure or different structures.
As described above, in the third embodiment of the present invention shown in FIG. 4, the warp ground yarn binding yarns and the auxiliary weft binding yarns are arranged in pairs, and the running surface side layer has a warp wear type structure. , High speed and powerful dehydrating machine does not cause internal wear, yarn fibrillation, yarn displacement, uniform drainage, strong binding force, fiber support, surface smoothness Further, it is possible to provide an industrial multilayer fabric that can be used for a long period of time by running smoothly so as to slide on the dehydrator.
[0017]
【The invention's effect】
The industrial multi-layer fabric of the present invention includes a warp side yarn binding yarn that is woven with an upper surface side weft to form a part of the upper surface side surface and connects the upper surface side layer and the traveling surface side layer, and the traveling surface side layer. Has a warp wear-type structure and a structure in which the binding portion of the warp ground yarn binding yarn is connected at a position where there is little pull-in, so that a local recess is not formed on the surface, and the surface property and drainage Even with a machine that is uniform, high speed, and powerful dewatering capability, there is no internal wear, yarn fibrillation, or yarn misalignment, and it has a strong binding force and smoothly slides on the dehydrator. It can travel and be used for a long time, and has an excellent effect on fiber support.
[Brief description of the drawings]
FIG. 1 is a design diagram showing a complete structure of Example 1 of the present invention.
FIG. 2 is a cross-sectional view taken along the weft 1 ′ according to the first embodiment of the present invention.
FIG. 3 is a design diagram showing a complete structure of Example 2 of the present invention.
FIG. 4 is a design diagram showing a complete structure of Example 3 of the present invention.
[Explanation of symbols]
1a. Warp binding yarn
1b. Warp binding yarn
2. Upper surface side warp and running surface side warp
3a. Warp binding yarn
3b. Warp binding yarn
4). Upper surface side warp and running surface side warp
5a. Warp binding yarn
5b. Warp binding yarn
6). Upper surface side warp and running surface side warp
7a. Warp binding yarn
7b. Warp binding yarn
8). Upper surface side warp and running surface side warp
9a. Warp binding yarn
9b. Warp binding yarn
10. Upper surface side warp and running surface side warp
11a. Warp binding yarn
11b. Warp binding yarn
12 Upper surface side warp and running surface side warp
13a. Warp binding yarn
13b. Warp binding yarn
14 Upper surface side warp and running surface side warp
1 '. Upper surface side weft and running surface side weft
2 '. Upper surface side weft and running surface side weft
3 '. Upper surface side weft and running surface side weft
4 '. Upper surface side weft and running surface side weft
5 '. Upper surface side weft and running surface side weft
6 '. Upper surface side weft and running surface side weft
7 '. Upper surface side weft and running surface side weft
8 '. Upper surface side weft and running surface side weft
9 '. Upper surface side weft and running surface side weft
10 '. Upper surface side weft and running surface side weft
11 '. Upper surface side weft and running surface side weft
12 '. Upper surface side weft and running surface side weft
13 '. Upper surface side weft and running surface side weft
14 '. Upper surface side weft and running surface side weft
3a. Auxiliary weft binding yarn
3b. Auxiliary weft binding yarn
6'a. Auxiliary weft binding yarn
6'b. Auxiliary weft binding yarn
9'a. Auxiliary weft binding yarn
9'b. Auxiliary weft binding yarn
12'a. Auxiliary weft binding yarn
12'b. Auxiliary weft binding yarn

Claims (4)

Comprising at least an upper surface side layer with the running surface side layer, in an industrial multilayer fabric obtained by coupling the the upper surface side layer running surface side layer by warp fabric yarns binding yarn weaves the upper surface side layer and the running surface side layer, warps A pair of ground yarns is formed as a pair, and the two warp yarns are alternately displayed on the upper surface side, and substantially one upper surface side warp is formed on the upper surface side weft and the upper surface side without weaving. A multi-layer industrial fabric that forms a long crimp on the traveling surface side by passing under the plurality of traveling surface side wefts in which the traveling surface side warps are continuous. . The position where the warp ground yarn binding yarn passes the lower side of the traveling surface side weft and connects the traveling surface side layer is on the upper surface side between the portions where the traveling surface side weft passes the lower side of the traveling surface side warp. The industrial multilayer fabric according to claim 1, wherein the industrial multilayer fabric is in an approaching position. The warp binding yarn is a part or all of the position between the upper part of one or two upper surface side wefts, and the binding yarn is lowered to the traveling surface side and below the traveling surface side weft. The industrial multilayer fabric according to claim 1 or 2, which is a binding yarn passing through the side. A pair of auxiliary weft binding yarns that pass over the upper side of two or more upper surface side warps adjacent between the upper surface side wefts to form a crimp on the upper surface side surface are arranged in one set, and the two sets of auxiliary weft yarns claims 1, characterized in that binding yarn forms a substantially auxiliary weft binding yarns one roll of tissue on the upper side weaving the upper surface side warp appear on the upper surface side surface alternately any one of 3 Industrial multilayer fabric described in 1.

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