JP2017193799A - Precursor woven fabric, woven fabric, and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a precursor woven fabric in which optical fiber yarns in a bundling region in an intermediate part from a design region to a collection end part can be bundled by using other constituent yarns as they are; to provide a woven fabric which is obtained by using the precursor woven fabric, and in which the bundling region of the optical fiber yarns is formed by bundling by the other constituent yarns; and to provide a method for producing the woven fabric.SOLUTION: First constituent yarns 20 include optical fiber yarns 21. A woven fabric 10 includes: a collection end part 15 with the first constituent yarns 20 collected therein which is located at the end part of the woven fabric 10, and into which light can be introduced; a bundling region 17 in which the first constituent yarns 20 are arranged so as to be gradually bundled together from a position more inside than the collection end part 15 toward the collection end part 15; and a design region 19 which is located more inside than the bundling region 17, and in which the first constituent yarns 20 and second constituent yarns 30 are woven so that light leaked out from the optical fiber yarns 21 is visible from the side of one surface 10a of the woven fabric 10. In the bundling region 17, the second constituent yarns 30 bundle the first constituent yarns 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a precursor woven fabric, a woven fabric, and a method for manufacturing the same, and more particularly to a precursor woven fabric for obtaining a woven fabric including an optical fiber as a constituent yarn, a woven fabric including an optical fiber as a constituent yarn, and a method for manufacturing the same.

  Conventionally, a fabric including an optical fiber capable of emitting side light has been proposed as a constituent yarn. In this fabric, when light is incident from one end, the incident light is leaked to the outside from the side surface of the optical fiber until reaching the other end. Thereby, it is comprised so that the surface of a textile fabric may be light-emitted. In such a woven fabric including an optical fiber capable of emitting light from the side, the technique disclosed in Patent Document 1 below is known.

JP 2010-267573 A

The optical fiber fabric disclosed in Patent Document 1 includes a plurality of optical fibers in the fabric, and in order to emit light from these optical fibers, it is necessary to introduce light into the individual optical fibers. At this time, since it is inefficient to use a separate light source for each optical fiber, the end portions of a plurality of optical fibers are gathered to form a gathering end portion, and one light source is associated with this gathering end portion. In general, light is introduced into a plurality of optical fibers at the same time.
In this regard, Patent Document 1 discloses that “a plurality of optical fibers are pulled out from one end of an optical fiber fabric, and the leading ends of these optical fibers are bundled in a ring shape and fixed to an aluminum light guide cylinder” ([ 0039]) is disclosed, but there is no mention of how the optical fiber is drawn from the fabric.

  Conventionally, in general, when an optical fiber is used as a weft, a warp is drawn, and when an optical fiber is used as a warp, a weft is pulled out, and these fibers are removed to pull out the optical fiber from the fabric. Adopted. FIGS. 1 to 3 of the above-mentioned patent document 1 are drawings in which the exposed ends of the optical fibers are gathered. As described above, although there is no mention in the patent document 1, they are interlaced with the optical fibers as in the prior art. It is necessary to pull out the yarn to expose the optical fiber at the end of the fabric.

  However, in order to pull out the other constituent yarn entangled with the optical fiber in the woven fabric, it takes time and effort, and there is a risk that the optical fiber may be damaged when the other constituent yarn is pulled out. On the other hand, it is possible to leave the end region of the optical fiber in a disjoint state from the time of manufacturing the fabric, but it will send the important part where light is introduced later to various processes in an exposed state. There are concerns about bending and scratching. Furthermore, after all, it is difficult to handle the optical fibers that have been separated later, and this may require a process for gathering the optical fibers and separate parts. In addition, the longer the optical fiber located farther from the collecting end, the longer the exposure length required to reach the collecting end. As the number of light sources is reduced, the exposed length of the optical fiber becomes longer, and the above-mentioned risk becomes apparent. The problem can also arise.

  The present invention has been made in view of the above situation, and a precursor fabric capable of focusing an optical fiber yarn in a converging region between a design region and a collecting end portion using other constituent yarns as it is, and this precursor fabric. It is an object of the present invention to provide a woven fabric in which a converging region of an optical fiber yarn obtained by using the yarn is focused by other constituent yarns, and a method for producing such a woven fabric.

That is, the present invention is as follows.
The woven fabric according to claim 1 is a woven fabric having one of warp and weft as a first constituent yarn and the other as a second constituent yarn,
The first component yarn includes, in part or in whole, an optical fiber yarn capable of side light emission,
A gathering end portion where the first constituent yarns are gathered, which is located at the end portion of the woven fabric and can introduce light;
A focusing area arranged so that the first constituent yarns are gradually focused from a position closer to the collecting end than the collecting end to the collecting end,
A design region in which the first component yarn and the second component yarn are woven so that the light leaked from the optical fiber yarn can be visually recognized from one side of the main fabric, which is located in the middle of the focusing region, Have
The gist is that the second constituent yarns converge the first constituent yarns in the converging region.
The woven fabric according to claim 2 has a plurality of converging regions and a plurality of collecting end portions corresponding to the converging regions with respect to one design region in the woven fabric according to claim 1. Is the gist.

The precursor fabric according to claim 3 is a precursor of the fabric according to claim 1 or 2,
A weaving region (B) to be the converging region, and a weaving region (C) to be the design region,
The gist is to include at least one of the following [1] and [2].
[1] thread density _{D B2} of the second composition yarns of the weaving region (B) is smaller than the thread density _{D C2} of the second composition yarns of the weaving region (C).
[2] The entanglement density S _{B2 of} the second constituent yarn in the weaving region (B) with respect to the first constituent yarn is the entanglement density S of the second constituent yarn in the weaving region (C) with respect to the first constituent yarn. Smaller than _C2 .
The precursor fabric according to claim 4 is the precursor fabric according to claim 3, by pulling two different yarns of the second constituent yarns constituting the weaving region (B) in directions opposite to each other. The gist is that the second constituent yarns can converge the first constituent yarns constituting the weaving region (B).

  The manufacturing method of the textile fabric of Claim 5 is a manufacturing method of the textile fabric of Claim 1 or 2, Comprising: The said fabric which comprises the said weaving area | region (B) using the precursor textile fabric of Claim 3. The gist is provided with a converging step of pulling two different ones of the two constituent yarns in directions opposite to each other and converging the first constituent yarns constituting the weaving region (B) with the second constituent yarns. .

In the woven fabric of the present invention, the first constituent yarns are gradually converged from the position closer to the gathering end portion than the gathering end portion where the first constituent yarns containing the optical fiber yarns are gathered. There is a converging area arranged, in which the second constituent yarn focuses the first constituent yarn. That is, the optical fiber yarn in the converging region between the design region and the gathering end is converged using the constituent yarns as they are. For this reason, there is no need to pull out the second constituent yarn, and it is not necessary to use a separate converging member for converging, and a low-cost fabric can be obtained while having a converging region. In addition, since the second constituent yarn is converging the optical fiber yarn in the converging region, the second constituent yarn functions as a protective yarn for the optical fiber yarn, and the woven fabric is in a state where the ends of the optical fiber yarn are separated. Problems caused by handling can be prevented.
Moreover, the textile fabric of the present invention can have a plurality of converging regions with respect to one design region, and can have a plurality of concentrated end portions corresponding to the plurality of converging regions. In this case, the converging region sandwiched between the design region and the collecting end portion can be narrowed, and the size of the necessary woven fabric can be suppressed to effectively use the optical fiber.

The precursor fabric of the present invention has a weaving region (B) serving as a converging region and a weaving region (C) serving as a design region, and [1] the second constituent yarn of the weaving region (B). thread density D _B2 is smaller than the thread density D _C2 of the second constituent yarn of the weaving region (C), and, confounding density for the first composition yarns of the second constituent yarn of [2] weaving region (B) S _B2 is smaller than the entanglement density S _C2 for the first composition yarns of the second constituent yarn of the weaving region (C), having at least one component of the.
As a result, by pulling two different constituent yarns of the second constituent yarns constituting the weaving region (B) in directions opposite to each other, the first constituent yarns constituting the weaving region (B) are the second constituent yarns. Can be focused. That is, the optical fiber yarn in the weaving region (B) from the weaving region (C) to the weaving region (A) can be bundled using the constituent yarns as they are. For this reason, there is no need to pull out the second constituent yarn, and there is no need to use a separate converging member for converging, and a fabric having a converging region can be manufactured at low cost. In addition, since the second constituent yarns converge the optical fiber yarns in the weaving region (B), the second constituent yarns function as protective yarns for the optical fiber yarns, and the end portions of the optical fiber yarns are separated. Therefore, it is possible to prevent problems caused by handling the precursor fabric.

The method for producing a woven fabric of the present invention uses the above-mentioned precursor woven fabric, and pulls different two of the second constituent yarns constituting the weaving region (B) in directions opposite to each other to constitute the weaving region (B). And a converging step of converging the first constituent yarn to be focused with the second constituent yarn.
Accordingly, the component yarn entangled with the optical fiber can be used as it is by a very simple operation, and the optical fiber can be protected while converging, and a woven fabric can be manufactured without using a separate converging member and protective member.

The present invention will be further described in the following detailed description with reference to the drawings referred to, with reference to non-limiting examples of exemplary embodiments according to the present invention. Similar parts are shown throughout the several figures.
It is a typical top view explaining an example of the textile fabric of the present invention. It is typical sectional drawing explaining an example of the textile fabric of this invention. It is a typical top view explaining an example of the precursor fabric of the present invention. It is typical sectional drawing explaining an example of the precursor fabric of this invention.

  The items shown here are exemplary and illustrative of the embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

In the following description, when referring to both the first component yarn (20) and the second component yarn (30), these are collectively referred to as “component yarns”.
Further, among the first constituent yarns 20, “optical fiber yarn” is also simply referred to as “OF yarn”. Furthermore, among the first constituent yarns 20, other constituent yarns excluding the optical fiber yarn 21 are also referred to as “other first constituent yarns”.

<1> Woven Fabric The woven fabric (10) according to the present embodiment is a woven fabric (FIGS. 1 and 2) in which one of the warp and the weft is the first constituent yarn (20) and the other is the second constituent yarn (30). Reference).
The first constituent yarn (20) includes, in part or in whole, an optical fiber yarn (21) capable of side light emission.
The woven fabric (10) is located at the end thereof, and is capable of introducing light, and the gathering end portion (15) where the first constituent yarns (20) are gathered,
A converging region (17) arranged so that the first constituent yarns (20) are gradually converged from a position closer to the collecting end (15) toward the collecting end (15);
The first component yarn (20) and the second yarn are positioned so as to be closer to the converging region (17), and the light leaked from the optical fiber yarn (21) can be viewed from the one surface (10a) side of the fabric (10). And a design region (19) in which the constituent yarn (30) is woven.
In the focusing region (17), the second constituent yarn (30) focuses the first constituent yarn (20).

The “woven fabric (10)” is a fabric woven by using one of warp and weft as the first constituent yarn 20 and the other as the second constituent yarn 30.
The “first constituent yarn (20)” includes an optical fiber yarn (hereinafter also simply referred to as “OF yarn”) 21 capable of emitting light from the side as part or all of the “first constituent yarn (20)”. That is, the first component yarn 20 may be composed of only the OF yarn 21 or may include other first component yarns 22 other than the OF yarn 21.
The ratio of the OF yarn 21 in the first component yarn 20 is not limited, but is usually 10% or more, preferably 10% or more and 90% or less, more preferably 20% or more and 80% or less, and 30% or more and 70% or less. Is more preferable.

  The “fiber optic yarn (21)” is a yarn that allows light to enter from one end of the yarn, guides the incident light within the yarn, and reaches the other end of the yarn. In addition, the OF yarn 21 used in the fabric 10 is preferably a side-emitting type OF yarn 21. That is, the OF yarn 21 is preferably capable of emitting light from the side surface while guiding light from one end to the other end. Specifically, various OF yarns having a core-sheath structure (two-layer structure) of a core (core) and a sheath (cladding), and having a different refractive index between the core and the sheath can be used.

The OF yarn 21 used in the woven fabric 10 is preferably a resin side light emitting OF yarn 21 from the viewpoint of weaving. Specifically, an OF yarn 21 in which a light scattering material is blended into the core material can be used. That is, the side-emitting type OF yarn 21 has a structure in which the scattered light leaks from the side surface of the OF yarn 21 without totally reflecting the optical image at the core-sheath interface by blending the scattering material. In such an OF yarn 21, the side emission luminance can be controlled by adjusting the concentration of the light scattering material to be blended in the core material.
Although the diameter of the OF yarn 21 is not particularly limited, it can be set to, for example, 0.01 mm or more and 2.0 mm or less, preferably 0.05 mm or more and 1.5 mm or less, and 0.1 mm from the viewpoint of suitably obtaining the weaving property. More preferably, it is 1.0 mm or less.

The “other first constituent yarn (22)” is a yarn obtained by removing the OF yarn 21 from the first constituent yarn 20, and this yarn is not particularly limited, and an appropriate yarn can be used.
For example, the material which comprises the other 1st constituent yarn 22 is not limited, A natural fiber may be sufficient and a synthetic fiber may be sufficient. In the case of synthetic fibers, the constituent resins include polyamide resins such as nylon 6 and nylon 66, polyester resins such as polyethylene terephthalate, polybutylene terephthalate and polytrimethylene terephthalate, polyolefin resins such as polypropylene, and polyacrylic resins. Examples thereof include resins. These may use only 1 type and may use 2 or more types together.
The fineness of the other first constituent yarns 22 is not particularly limited, but can be, for example, 100 dtex or more and 1000 dtex or less, preferably 200 dtex or more and 700 dtex or less, and more preferably 300 dtex or more and 500 dtex or less.

  The other first constituent yarn 22 can include a light transmission inhibiting component. When the other first constituent yarns 22 include a light transmission inhibiting component, the light shielding property with respect to the OF yarns 21 can be improved. In this case, it is possible to control the appearance of light from the OF yarn 21 in the design region 19. In particular, when the other first constituent yarn 22 is a synthetic fiber, it is preferable to include a light transmission inhibiting component. Specifically, the light transmission inhibiting component may be contained in the fiber material forming the other first constituent yarn 22, or the light transmitting inhibiting component is formed on the surface of the other first constituent yarn 22 by a method such as coating. It may be attached or both of them.

The light transmission inhibiting component is preferably a component that can inhibit light transmission in the other first constituent yarns 22. That is, it is preferably a component that can prevent light from passing through the other first constituent yarns 22. For example, the light transmission may be inhibited by reflection / dispersion, the light transmission may be inhibited by light absorption, or the light transmission may be inhibited by other actions.
Specific examples include colorants (pigments, dyes, etc.), light absorbers, extenders (various fillers, etc.), and the like. These may use only 1 type and may use 2 or more types together. Among these, examples of the pigment include organic pigments such as azo, phthalocyanine, perinone, perylene, and anthraquinone, and inorganic pigments such as carbon black, ultramarine, bengara, titanium oxide, and iron oxide. Can do. These may use only 1 type and may use 2 or more types together. Examples of the dye include anthraquinone, perinone, perylene, azo, methine, and quinoline dyes. Among these, a darker dye is preferable, and a black dye is particularly preferable. These may use only 1 type and may use 2 or more types together.

The “second constituent yarn (30)” is a constituent yarn constituting the fabric that is entangled with the first constituent yarn 20 to form the main fabric 10. The second constituent yarn 30 may or may not include the OF yarn 21.
The material, the fineness, and the like that the second component yarn 30 configures are not particularly limited, and the materials listed as the other first component yarns 22 can be similarly used. Further, similarly to the other first constituent yarns 22, a light transmission inhibiting component can be included.
The usage form of the second constituent yarn 30 is not particularly limited. For example, as shown in FIG. 1, the first constituent yarn 20 is paired with a predetermined second constituent yarn 31 and the predetermined second constituent yarn 31. Corresponding second constituent yarns 32 entangled with each other.
The fineness of the second constituent yarn 30 is not particularly limited, but can be, for example, 100 dtex or more and 1000 dtex or less, preferably 200 dtex or more and 700 dtex or less, and more preferably 300 dtex or more and 500 dtex or less.

As described above, the fabric 10 of the present embodiment has the collecting end portion (15), the converging region (17), and the design region (19).
The “collecting end portion (15)” is a portion where the first constituent yarns 20 are located at the end portion of the fabric 10 and can introduce light. At the gathering end portion 15, all of the first constituent yarns 20 may be gathered, or only some of the first constituent yarns 20 may be gathered. As a case where only a part of the first constituent yarns 20 is gathered, a form in which only the OF yarns 21 are gathered can be mentioned. Usually, at least the OF yarns 21 of the first constituent yarns 20 are collected.
By gathering the OF yarns 21 at the gathering end portion 15, a light introduction end surface (the end surface of the OF yarn 21 is exposed in substantially the same direction) that can introduce light from a light source to the plurality of OF yarns 21 at once. Aggregated end face) can be formed. The light introduction end face is formed using a conventionally known method or the like and performing appropriate processing as necessary. For example, after the OF yarns 21 are gathered and fixed at the gathering end portion 15, the OF yarns 21 are collectively cut for length adjustment, the obtained cut surface is polished, and the light introduction end surface is then removed. Can be obtained.

  Further, the collecting end portion 15 may or may not have the second constituent yarn 30. The conventional woven fabric does not have the focusing region 17 focused by the second constituent yarn 30 as the woven fabric 10 of the present invention. For this reason, the conventional woven fabric and its precursor woven fabric are inserted into a cylindrical jig (such as a collecting cylinder) with the ends of the OF yarns 21 being aligned at the collecting end portion 15, and are crimped or adhered. As a result, the plurality of OF yarns 21 are collected so as not to be separated. In this regard, since the fabric 10 of the present invention has the converging region 17, the OF yarn 21 is not separated and difficult to handle without using a jig as described above. Therefore, in the woven fabric 10, the collecting end portion 15 can be configured not to have the second constituent yarn 30. In this case, a precursor fabric 10 ′ (precursor fabric 10 ′ having a weaving region A to be described later) in which only the first component yarn 20 is arranged without interweaving the second component yarn 30 with respect to the region that becomes the collecting end portion 15 during weaving. ) Can be formed to form the collecting end portion 15 that does not have the second constituent yarn 30.

The “converging region (17)” is a region where the first constituent yarns 20 are gradually converged from the position closer to the collecting end 15 toward the collecting end 15. In particular, in the woven fabric 10 of the present invention, the converging region 17 includes the first constituent yarns 20 so that the first constituent yarns 20 are gradually converged from the position closer to the collecting end 15 toward the collecting end 15. The component yarn 20 is a region where the second component yarn 30 is converged. Here, the first constituent yarn 20 may be only the OF yarn 21 of the first constituent yarn 20. Moreover, the middle means the design region 19 side.
Usually, the form in which the first constituent yarns 20 are gradually converged toward the collecting end portion 15 is adjusted by the tightening degree of the second constituent yarns 30. That is, as the design region 19 side is closer, the tightening degree of the second constituent yarn 30 is looser, and the tightening degree of the second constituent yarn 30 becomes stronger as it approaches the gathering end portion 15, whereby the above-described form can be formed. .

Further, in the woven fabric 10, since the second constituent yarn 30 converges the first constituent yarn 20 to form the converging region 17, as a result, the second constituent yarn 30 is formed around the first constituent yarn 20. Has been placed. Therefore, a layer formed by the second constituent yarn 30 (a layer formed by the assembly of the second constituent yarns 30) can function as a protective layer for the first constituent yarn 20 with respect to the first constituent yarn 20. . That is, since the first constituent yarn 20 includes the OF yarn 21 (only the OF yarn 21 may be used), the first yarn 20 can function as a protective layer for the OF yarn 21.
From such a viewpoint, as the second constituent yarn 30 used for converging in the converging region 17, a yarn having a fineness greater than that of the second constituent yarn 30 constituting the design region 19 can be used. Thereby, the function as a protective layer can be strengthened.
Further, as the second constituent yarn 30 used for focusing in the converging region 17, a constituent yarn having a color different from that of the second constituent yarn 30 constituting the other region can be used. Constituent yarns having different colors can be used as marks in the converging step in the precursor fabric 10 ′ described later.

  Further, the focusing region 17 may have only one design region 19, but may have a plurality. In other words, a plurality of converging regions 17 can be provided for one design region 19. When a plurality of converging regions 17 are provided for one design region 19, the width of the converging region 17 can be reduced compared to a case where one converging region 17 is provided for one design region 19. . In this case, a plurality of collecting end portions 15 corresponding to the plurality of converging regions 17 can be similarly provided. Usually, the same number of the focusing regions 17 and the collecting end portions 15 are arranged.

A method for forming the converging region 17 in the fabric 10 is not particularly limited, but it is preferable that the precursor fabric 10 ′ has the configuration [1] and / or [2] as described later.
[1] The yarn density D _B2 of the second constituent yarn in the weaving region (B) serving as the converging region 17 is smaller than the yarn density D _C2 of the second constituent yarn in the weaving region (C) serving as the design region 19.
[2] entanglement density S _B2 for the first composition yarns of the second constituent yarn of the weaving region a focus region 17 (B) is, first composition yarns of the second constituent yarn of the weaving region a design area 19 (C) less than confounding density _{S C2} for.
When the precursor fabric 10 ′ has these configurations, the obtained fabric 10 usually has the same configuration. Each configuration [1] and [2] will be described later in the precursor fabric 10 ′.

  The “design region (19)” is located in the middle of the converging region 17, and the first component yarn 20 and the second component are arranged so that the light leaked from the OF yarn 21 can be viewed from the one surface 10a side of the main fabric 10. This is a region where the yarn 30 is woven. The design area 19 is an area having a portion where light emitted by the OF yarn 21 can be visually recognized. However, it does not need to be visible on the entire surface of the design area 19 and can be configured according to the design.

For example, in the design region 19, the light emitting portion can be formed by weaving the OF yarn 21 so as to be exposed on one surface 10 a (design surface) of the fabric 10. The method of weaving so that the OF yarn 21 is exposed on the one surface 10a of the design region 19 is not particularly limited, and various known woven structures and woven structures can be used. Specifically, a multi-layer woven structure can be used. For example, when the first constituent yarn 20 is used as a warp, a light-emitting region can be formed at a place where the OF yarn 21 is woven so as to form a layer on the side 10a by using a warp double woven fabric. A non-light emitting region can be formed at a location where the OF yarn 21 is woven so as to constitute a layer on the other surface 10b side. The same applies to the case where the first constituent yarn 20 is used as the weft and the weft has a weft double woven structure. Thus, the design using the light emission can be applied to the design region 19 by using the light emitting region and the non-light emitting region as necessary.
In this case, the exposure ratio (exposed area ratio) occupied by the OF yarn 21 with respect to the entire one surface 10a of the fabric 10 in the design region 19 is preferably 1% or more and 40% or less, and preferably 2% or more and 20% or less. Is more preferably 3% or more and 10% or less.
In addition, the luminance can be further increased in a region where the OF yarn 21 has a large amount of crimp, and the luminance can be controlled to be small in a region where the OF yarn 21 has a small amount of crimp.

<2> Precursor Fabric A precursor fabric 10 ′ of the present invention is a fabric (see FIGS. 3 and 4) that serves as a precursor of the above-described fabric 10 of the present invention.
This precursor fabric 10 ′ has a weaving region (B) that becomes the converging region 17 and a weaving region (C) that becomes the design region 19.
It comprises at least one of the following [1] and [2].
[1] thread density _{D B2} of the second constituent yarn 30 weaving region (B) is smaller than the thread density _{D C2} of the second constituent yarn 30 weaving region (C).
[2] The entanglement density S _B2 of the second constituent yarn 30 in the weaving region (B) with respect to the first constituent yarn 20 is greater than the entanglement density S _C2 of the second constituent yarn 30 in the weaving region (C) with respect to the first constituent yarn 20. Is also small.

The above-described configuration [1], that is, “the weaving region (C) in which the yarn density D _B2 (number / 25.4 mm) of the second constituent yarn 30 in the weaving region (B) serving as the converging region 17 is the design region 19”. ) Is smaller than the yarn density D _C2 (number / 25.4 mm) of the second constituent yarn 30 ”, two different constituent yarns of the second constituent yarns constituting the weaving region (B) are used. The first constituent yarns that can be pulled more easily in the directions opposite to each other and that smoothly form the weaving region (B) can be converged smoothly by the second constituent yarns.
In this case, the yarn density D _B2 (number / 25.4 mm) and the yarn density D _C2 (number / 25.4 mm) are not particularly limited. For example, the yarn density D _B2 (number / 25.4 mm) and the yarn density D _When the ratio (D _B2 / D _C2 ) with _C2 (number / 25.4 mm) is set, the ratio (D _B2 / D _C2 ) is (D _B2 / D _C2 ) <1, and 0.01 ≦ ( D _B2 / D _C2 ) ≦ 0.99, 0.1 ≦ (D _B2 / D _C2 ) ≦ 0.9, and 0.2 ≦ (D _B2 / D _C2 ) ≦ 0 .8. The yarn density represents the number of yarns included per 25.4 mm.

The configuration of [2] described above, that is, “the entanglement density S _B2 (location / 25.4 mm) of the second constituent yarn 30 in the weaving region (B) to be the converging region 17 with respect to the first constituent yarn 20 is the design region 19. The weaving region (C) is smaller than the entanglement density S _C2 (location / 25.4 mm) of the second constituent yarn 30 with respect to the first constituent yarn 20 in the weaving region (C). Two different constituent yarns of the second constituent yarns to be pulled can be more easily pulled in opposite directions, and the first constituent yarns constituting the weaving region (B) can be smoothly focused by the second constituent yarns. Can do.
In this case, the confounding density S _B2 (location / 25.4 mm) and the confounding density S _C2 (location / 25.4 mm) are not particularly limited. For example, the confounding density S _B2 (location / 25.4 mm) and the confounding density S _When the ratio (S _B2 / S _C2 ) with _C2 (location / 25.4 mm) is set, the ratio (S _B2 / S _C2 ) is (S _B2 / S _C2 ) <1, and 0.01 ≦ ( S _B2 / S _C2 ) ≦ 0.99, 0.1 ≦ (S _B2 / S _C2 ) ≦ 0.9, 0.2 ≦ (S _B2 / S _C2 ) ≦ 0 .8. In addition, the entanglement density represents the number of entangled portions included per 25.4 mm.

In addition, as described above, when the above-described densities of the second constituent yarns 30 are reduced in the weaving region (B), two different ones of the second constituent yarns 30 constituting the weaving region (B) are removed. , It can be easily pulled in directions opposite to each other. As a result, the second constituent yarn 30 can easily converge the first constituent yarn 20 constituting the weaving region (B).
Therefore, as the second constituent yarn 30 forming the weaving region (B) that becomes the converging region 17, it is possible to use a yarn having a fineness greater than that of the second constituent yarn 30 forming the weaving region (C) that becomes the design region 19. it can. Thereby, it is possible to make it easier to pull the converging yarn (second constituent yarn responsible for converging). In addition, as described above, the function as a protective layer can be enhanced.
Similarly, as the second constituent yarn 30 forming the weaving region (B) that becomes the converging region 17, the second constituent yarn 30 forming the weaving region (C) that becomes the design region 19 uses a yarn of a different color. Can do. Thereby, it is possible to easily identify the focused yarn (second constituent yarn responsible for focusing) from other constituent yarns, and the focusing operation can be performed more smoothly.

In the above description, the different two of the second constituent yarns 30 constituting the weaving region (B) may be any two different. Specifically, the two yarns of the second component yarn 31 and the second component yarn 32 in FIGS. 3 and 4 can be mentioned. Moreover, it is sufficient that it is at least two, or more. That is, more different second component yarns 30 can be pulled.
Furthermore, if necessary, the tension of the second constituent yarns 30 is adjusted so that the first constituent yarns 20 are gradually and gradually converged from the design region 19 side toward the collecting end portion 15 side. Can be arranged as follows.
Further, as a matter of course, the directions opposite to each other are not limited to 180 degrees and the opposite direction with respect to one pulling direction, but may be any direction as long as they can be appropriately focused.

<3> Fabric Fabrication Method The fabric fabrication method of the present invention uses the precursor fabric 10 'of the present invention, and two different yarns among the second constituent yarns 30 constituting the weaving region (B) are opposed to each other. It is characterized by comprising a converging step of concentrating the first constituent yarn 20 constituting the weaving region (B) by the second constituent yarn 30 by pulling in the direction.
Precursor fabric 10 ', weaving region (B), second constituent yarn constituting this region (B), two different second constituent yarns, directions facing each other, first constituent yarn constituting weaving region (B) The focusing by the second constituent yarn is as described above.

The use of the fabric 10 of the present invention is not particularly limited, but can be used as a design material stuck to various interior parts. Specifically, it has a base and a design material stretched so as to cover at least a part of the surface of the base, and the design material is an interior part including the fabric 10 on the design surface. Can do.
The base | substrate should just be a support body of a design material. For example, a board having a substantially uniform thickness as a whole can be used.
The design material should just be provided with the textile fabric 10 on the design surface, and is not limited about other structures. The design material may be composed of only one layer of the woven fabric 10 or may be composed of two or more layers including other layers other than the woven fabric 10. When it consists of two or more layers, examples of the other layer include a cushion layer (arranged on the non-design surface side of the design material).
Such interior parts can be widely used as interior parts in various fields such as vehicles (automobiles and railway vehicles, etc.), aircrafts, ships, buildings, etc., but are particularly suitable as various trims for vehicle applications.

The fabric and the like of the present invention is widely used as a fabric constituting an interior part and its design surface in various fields such as vehicles (automobiles, railway vehicles, etc.), aircraft, ships, and architecture.
Specifically, trim parts such as automobile door trim, armrest, upper trim, decorative panel, ornament panel, lower trim, pocket (door trim pocket), quarter trim; pillar garnish; cowl side garnish (cowl side trim); side Seat system parts such as airbag peripheral parts; Center cluster, register, center box (door), grab door, instrument panel parts such as airbag peripheral parts; center console; overhead console; sun visor; deck board (luggage board) , Under tray; package tray; CRS cover; sheet side garnish; assist grip; passing light lever and the like.

10; fabric, 10a; one side, 10b; other side,
10 ′; precursor fabric,
15; Concentration end,
17; focusing area;
19; design area,
20; first constituent yarn, 21; optical fiber yarn, 22; other first constituent yarn,
30; second component yarn, 31; second component yarn, 32; second component yarn,
A: Weaving region (weaving region to be the gathering end),
B: Weaving region (weaving region that becomes a converging region),
C: Weaving area (weaving area to be a design area).

Claims (5)

One of the warp and the weft is a first constituent yarn and the other is a second constituent yarn,
The first component yarn includes, in part or in whole, an optical fiber yarn capable of side light emission,
A gathering end portion where the first constituent yarns are gathered, which is located at the end portion of the woven fabric and can introduce light;
A focusing area arranged so that the first constituent yarns are gradually focused from a position closer to the collecting end than the collecting end to the collecting end,
A design region in which the first component yarn and the second component yarn are woven so that the light leaked from the optical fiber yarn can be visually recognized from one side of the main fabric, which is located in the middle of the focusing region, Have
The woven fabric, wherein the second constituent yarns converge the first constituent yarns in the converging region.   The woven fabric according to claim 1, comprising a plurality of converging regions and a plurality of collecting end portions corresponding to the plurality of converging regions with respect to one design region. A precursor fabric that is a precursor of the fabric according to claim 1 or 2,
A weaving region (B) to be the converging region, and a weaving region (C) to be the design region,
A precursor fabric comprising at least one of the following [1] and [2].
[1] thread density _{D B2} of the second composition yarns of the weaving region (B) is smaller than the thread density _{D C2} of the second composition yarns of the weaving region (C).
[2] The entanglement density S _{B2 of} the second constituent yarn in the weaving region (B) with respect to the first constituent yarn is the entanglement density S of the second constituent yarn in the weaving region (C) with respect to the first constituent yarn. Smaller than _C2 .   By pulling different two of the second constituent yarns constituting the weaving region (B) in directions opposite to each other, the second constituent yarns constitute the first weaving region (B). The precursor fabric according to claim 3, wherein the constituent yarns can be bundled. A method for producing a woven fabric according to claim 1 or 2,
Using the precursor fabric according to claim 3, the two different yarns of the second constituent yarns constituting the weaving region (B) are pulled in directions opposite to each other to constitute the weaving region (B). A method for producing a woven fabric, comprising a converging step of converging the first constituent yarn with the second constituent yarn.

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