JP6574172B2 - Illuminated fabric containing glass fiber - Google Patents

Description

  The present invention relates to a light emitting woven fabric including a woven fabric support. According to the invention, the expression “woven fabric support” is understood to mean a sheet made of yarns based on fibers distributed with directionality and obtained by weaving or knitting. Weaving is the result of weaving yarns arranged in the longitudinal direction (hereinafter referred to as warp yarns) and yarns arranged in the transverse direction at right angles to the warp yarns (hereinafter referred to as weft yarns) in the same plane. . The bond obtained between these warps and these wefts is called weaving.

  Today, there are light-emitting woven fabrics that include a woven fabric support obtained by weaving yarns called tangled yarns and optical fibers. Such light-emitting woven fabrics are described in, for example, International Publication Nos. 2005/026423, 2008/035010, 2008/062141, and 2008/087339.

  Once connected to a light source, the optical fibers can emit light laterally due to the presence of erosion modifiers along their surfaces.

  Tangled yarns ensure good binding properties of the entire woven fabric support and can impart special properties to the woven fabric support depending on their type, their dimensions and / or their mechanical properties. It becomes possible.

  According to the invention, the expression “entangled yarn” does not have the property of being able to emit light laterally in all yarns or fibers other than optical fibers, and is therefore directly connected to the light source. Includes all yarns or fibers that are not or are not connectable.

International Publication No. 2005/026423 International Publication No. 2008/035010 International Publication No. 2008/062141 International Publication No. 2008/087339

  Between the luminous fabrics currently available on the market, a distinction needs to be made depending on the level of lighting that can be obtained. Most only make it possible to obtain low illumination levels corresponding to ambient lighting in dark environments.

  One of the objects of the present invention is to produce a luminescent fabric that has excellent lighting performance, particularly high illumination level and uniform brightness, over the entire surface of the luminescent fabric. The superiority of these performances is brought about in particular by sufficient properties that make it possible to use the luminescent fabric as a lighting installation.

  Another object of the present invention is to emit light with excellent fire protection behavior, reaction and resistance (hereinafter referred to as fire protection properties), specifically aimed at satisfying the requirements arising from the regulation of products intended for building applications. It is to make a woven fabric.

Due to the complexity of the luminescent fabric, it is difficult to improve the lighting characteristics without degrading the fire protection characteristics. Known light-emitting woven fabrics corresponding to those described in the aforementioned patent application specifications are:
Entangled yarn comprising organic synthetic polymer fibers, such as polyester or polyamide fibers, and
・ Organic optical fiber,
It is preferred to include a woven fabric support having:

  Organic materials do not inherently have good fire protection properties. By increasing the density of the optical fiber for the purpose of enhancing illumination, these properties cannot be improved, and by doing so they are impaired.

  Finally, the optimization of lighting properties and fire protection behavior changes especially mechanical properties such as tensile strength, impact strength, tear strength, and moisture resistance without compromising other properties expected of any woven fabric It must be done without changing other optical properties, such as opacity.

  Thus, improving lighting performance with good uniformity and high lighting levels, while maintaining at least equal all properties expected for luminescent or non-luminescent fabrics intended for application in buildings, for example. There is a need to develop new light emitting woven fabrics that can improve fire protection behavior.

  Surprisingly, the Applicant has succeeded in obtaining a light-emitting woven fabric that satisfies all the required properties and contains a high proportion of glass yarns used as tangled yarns arranged in combination with optical fibers.

  Accordingly, the present invention provides a light-emitting woven fabric including a woven fabric support comprising warp yarns and weft yarns selected from tangled yarns and optical fibers capable of emitting light in the transverse direction, wherein the tangled yarns are the woven fabric The present invention relates to a light-emitting woven fabric comprising glass yarn corresponding to at least 50 wt% of the total weight of leno thread forming a fabric support.

  The luminescent fabrics described in the prior art literature are not limited to those containing entangled fibers of organic synthetic polymers. However, these references do not include any suggestions regarding the problems inherent in making a luminescent fabric comprising glass yarn. Also, these references do not include suggestions on how to weave yarns having different properties and characteristics together. The teachings of these documents are insufficient to enable the production of a luminescent fabric according to the present invention.

  In fact, many processing difficulties are related not only to the complexity of the luminescent fabric, the high percentage of glass yarns, and the combination of yarns based on fibers of different properties, but also to lighting, fire and mechanical properties. It comes from the constraints imposed. The choice of using glass yarn has a considerable effect on the weaving process and the properties of the luminescent fabric.

  Glass yarn, unlike most other organic textile fibers, is not elastic and breaks. This results in faster wear on the weaving machine on the one hand and, on the other hand, friction with the device or other fibers, resulting in hard and abrasive glass debris.

  Glass yarns can also degrade, due to their abrasiveness, the yarns of different properties that make up the woven fabric support, particularly organic yarns that are more sensitive to abrasion due to abrasion. When weaving with glass yarn, the risk of organic yarn breaking or degrading is high and harmful. This is even more true when the organic yarn is an optical fiber because the lighting properties can also be compromised.

  Finally, glass yarn is not a priori suited to the process of creating erosion modifiers in optical fibers, such as sandblasting, because of the risk of glass yarn degradation that can lead to breakage. Because the nature is also high.

  By selecting properties such as mesh openings depending on the raw materials used, their proportions, weaving type, weft and warp density, it is possible to reduce the wear phenomenon and the probability of yarn breakage. The woven fabric support of the present invention can be woven together with high-density glass yarns and optical fibers so that the optical fibers are not damaged or deteriorated. However, aside from this, the woven fabric support may be optically treated to create an erosion modification on the optical fiber by sandblasting without degradation of the glass yarn and thus without degradation of the woven fabric.

The luminescent fabric according to the present invention, optimized to contain a large amount of glass yarn, has the following advantages.
・ Improved fire resistance, especially with increased fire resistance and reduced total calorific value (GCV).
・ Improved lighting performance, especially linked to the optical properties of glass yarn.
-Increased mechanical strength, especially tensile strength, which makes it possible to use luminous woven fabric as a reinforcing component.
・ Reduce costs. This is because glass yarns are more economical than conventionally used polymer weaving yarns, especially when compared to polymer yarns that have been treated to improve fire protection behavior, such as TREVIRA® polyester yarns. This is especially true.

  The light-emitting woven fabric of the present invention has good fire resistance. They are difficult to ignite or even non-flammable according to certain embodiments. Glass does not ignite, does not propagate flames, and does not emit any smoke or toxic gases.

  The light emitting woven fabric of the present invention has improved lighting performance. Glass is a material having excellent transparency to visible light. The use of glass yarn makes it possible to avoid light loss in the luminescent fabric and thus increase optical efficiency and brightness. Furthermore, the glass in the form of the fabric diffuses light by multiple reflection and constitutes an excellent light reflector due to its natural white appearance. The special optical properties of the diffusion and reflection of the glass yarn help to increase the illumination level and also the brightness uniformity across the surface of the woven fabric.

  The light-emitting woven fabric of the present invention is an environmentally friendly solution that replaces existing light-emitting woven fabrics that include a woven fabric support composed primarily of plastic yarn. Indeed, the luminescent fabric of the present invention minimizes the use of raw materials derived from the petroleum industry. This is even more so when using partially or fully inorganic optical fibers, a light-emitting woven fabric is obtained in which the proportion of plastic in the woven fabric support is low or even zero. In addition, inorganic materials have better durability and reusability compared to plastic materials.

  For the purpose of obtaining the luminescent fabric of the present invention, a set of properties, such as the proportion and / or size of leno yarn made from glass and optical fiber, and the weft and warp yarn, leno yarn and optical fiber weight ratio, etc. are correlated. And optimized. From the combination of these characteristics, it becomes possible to obtain a light-emitting woven fabric with improved lighting performance and fire-proof behavior performance while maintaining woven property suitable for industrial practice.

  The woven fabric according to the present invention has a structure called a three-dimensional structure in that it has a certain thickness when flat. The woven fabric according to the present invention includes two surfaces that define two opposing major surfaces. At least one surface is used as an illumination surface. According to one embodiment, the woven fabric support includes a single surface that is used as the illumination surface, which will be referred to below as the main illumination surface or main illumination surface. According to another embodiment, the woven fabric support includes two surfaces that are used as illumination surfaces.

  Specific embodiments that are particularly advantageous in terms of fire and / or lighting performance are described below.

  According to a variant of the embodiment of the invention which is advantageous in terms of fire performance, the glass yarn is at least 30%, preferably at least 40%, and more preferably at least 50% by weight of the weight of the woven fabric support. %. The weight of the woven fabric support corresponds to the total weight of the weft and warp yarns, i.e. the total weight of the leno yarn and the optical fiber. Luminous woven fabrics that satisfy this feature can in particular have a total calorific value of less than 15 MJ / kg.

According to a variant of the embodiment which makes it possible to obtain an excellent illumination level, the luminescent fabric is
An optical fiber having a diameter of 500 μm or more, used as a weft and / or warp with a density of at least 8 pieces / cm, and
-Warp yarns, including sized glass yarns used as leno thread
including.

  According to another variant, an additional treatment is carried out aimed at providing auxiliary functionality to the luminescent fabric. These treatments are specifically mechanical, reflective, diffusive, decorative, fireproof, impact strength, abrasion resistant, antifouling, detergency, antistatic, Alternatively, it can have a role of imparting other characteristics. Improved mechanical properties or dimensional stability of the woven fabric support may be particularly advantageous in the case of raw fiber material, i.e., uncoated or untreated from the weaving machine. . For these purposes, the luminescent fabric comprising two surfaces, at least one of which is used as an illumination surface, may include at least one additional coating.

  According to a variant of the embodiment of the invention, the luminescent fabric comprises a flame retardant coating, preferably on the surface used as the main lighting surface. The combination of the luminescent fabric support and the flame retardant coating within the same luminescent fabric further contributes to obtaining excellent fire protection properties.

  According to a variant of an embodiment of the invention, the luminescent fabric comprises a structural coating, preferably on a surface that is not used as an illumination surface. This additional structural coating is advantageously white and / or reflective and / or based mainly on inorganic materials. The combination of the luminescent fabric support and the structural coating within the same luminescent fabric further contributes to obtaining excellent lighting performance while allowing good mechanical strength to be obtained.

  According to another embodiment of the present invention, the luminescent fabric is a combination of the aforementioned variations.

  The woven fabric support of the present invention can comprise a weave selected from, among others, plain weave, twill weave, satin weave, or jacquard weave.

  Depending on the type of weaving chosen, it is possible to help the optical fiber be present on one of the faces of the woven fabric support while ensuring good strength of the woven fabric support. The weaving method is selected for the purpose of maximizing the proportion of the optical fiber appearing on the surface used as the main lighting surface of the luminescent fabric. In the case of a luminescent fabric that uses each of the surfaces as an illumination surface, the lighting level can be adjusted by adjusting the presence of optical fibers emerging from one side or the other side of the luminescent fabric by selecting the weave. Can be adjusted.

  According to one advantageous embodiment of the invention, the woven fabric support comprises at least one part woven using a twill weave and more preferably further using a satin weave. The satin weave is preferably selected from satin weaves of 4 harness, 6 harness, 8 harness, 10 harness and 12 harness. The choice of satin weave can advantageously allow the weft or warp to be further visible on one of the faces of the woven fabric support. Advantageously, the woven fabric support comprises a satin weave, preferably 4, 6, 8, 10, 12 harness or more satin weave on the surface used as the lighting surface.

  According to an advantageous embodiment of the invention, the woven fabric support comprises at least one part woven using a plain weave, because this type of weaving guarantees good strength of the woven fabric. Because it can.

  Optical fibers and tangled yarns, preferably glass yarns, are used as warp and / or weft. An optical fiber is preferably used as the weft. Glass yarn is preferably used as warp yarn. Advantageously, glass yarns may be used as wefts and warps. According to one embodiment, the woven fabric support comprises glass yarn as warp and a combination of glass yarn and optical fiber as weft.

  A configuration that includes an optical fiber used as a weft allows a specific length of optical fiber to protrude beyond the side, i.e. at the end of the luminescent fabric support. This allows subsequent connection to the illumination means or light source.

  A configuration that includes an optical fiber used as the warp yields a length that is much greater than is possible depending on the width of the weaving machine using the optical fiber as the weft.

  According to one embodiment, the twine yarns forming the woven fabric support may include yarns or fibers other than glass yarns. The entangled yarn may in particular contain a combination of yarns of a different nature than glass yarns, such as yarns based on organic, metal or inorganic fibers other than glass fibers.

  According to another embodiment, all leno yarns are glass yarns, i.e. all yarns other than optical fibers are glass yarns.

  Suitable glass yarns according to the invention and methods for their production are described, for example, in “Fibres de verre de renforcement”, Techniques de l'Ingenieur, Traite Plasticiques et Composites (“paper on reinforcing glass fibers”, plastic and composite materials) It is described in. Glass yarns are formed from filaments having a diameter generally between 5 and 24 μm, preferably between 6 and 16 μm, more preferably between 8 and 13 μm. Glass yarn is produced from the usual raw materials required for glass production, such as silica, lime, alumina and magnesia. Glass yarns suitable according to the invention include in particular E glass yarns and silica yarns.

  Preferably, the glass yarns forming the woven fabric support are present in large amounts by weight and number. According to this embodiment, the entangled yarn, i.e. the yarn or fiber other than the optical fiber, is mainly glass yarn in weight and number. The glass yarn used as the leno thread is at least 50%, at least 60%, at least 70%, at least 80% in order of increasing preference by weight relative to the total weight of the leno thread forming the woven fabric support. It may correspond to at least 90%, at least 95%, at least 99%.

  According to a variant of the invention, the glass yarn is at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80% by weight relative to the weight of the woven fabric support. Or at least 90%. The higher the proportion of glass yarn in the woven fabric support, the better the fire protection performance. In particular, the luminescent fabric comprising at least 50% by weight of glass yarn has a total calorific value of less than 15 MJ / kg.

  Glass yarn is defined by the linear mass density or tex number, which is a function of the diameter and number of basic filaments forming the yarn. The tex corresponds to the mass in grams of yarn 1000 m. The glass yarn preferably has a tex number between 2.8 and 4800, preferably 34 or more, preferably 50-800.

  Glass yarns used as warp yarns in order of increasing preference, over 34, between 50 and 800, between 60 and 250, between 60 and 140, between 60 and 80 tex numbers Have

  The density of the warp yarns is at least 5, preferably at least 7, and optionally between 7 and 9 yarns per cm. The warp density may be higher. For example, the density of the warp may be 55 / cm or more when the warp tex is small, for example, between 2.8 tex and 60 tex.

  The density of glass yarns used as warp yarns is at least 5, preferably at least 7, and more preferably between 7 and 9 yarns per cm.

  Glass yarns used as wefts have tex numbers greater than 34, between 50 and 800, between 100 and 250, between 120 and 220, in order of increasing preference.

The density of weft yarn (including twine and optical fiber) increases in order of preference.
At least 10, at least 15, at least 20, at least 25 / cm, and / or
・ Maximum 60, Maximum 35 / cm,
It is.

  The density of the glass yarn used as the weft is at least 5, preferably 8-20 strands / cm, and / or the density of the optical fiber as the weft is at least 5, preferably 8-20 strands / cm.

  The product of the tex number of the glass yarn as the weft or warp yarn and the density of the glass yarn expressed in yarns per unit centimeter is greater than 500. The product of the tex number of the glass yarn as the weft and the density of the glass yarn expressed in yarns per unit centimeter is preferably more than 900, more preferably between 900 and 2500.

  The glass yarn may be a glass twist yarn having a twist number of at least 5, at least 10, at least 15, or at least 20 per meter.

  Glass yarns are preferably finished in advance if they can be sized after they are formed. A finish is a processing product that is applied to the surface of the glass fiber after it emerges from the spinner for forming the glass fiber. All glass yarns are generally finished. Unlike the finishing process, the sizing process is a process performed “after”, that is, after the production of the glass yarn. The use of finished and optionally sized glass yarns makes it possible to minimize the friction between fibers or yarns during weaving.

  In the finishing treatment, a finishing composition containing at least one finishing agent is applied. Examples of the finishing agent include finishing agents described in “Fibres de verre de reinforcement”, Technique de l'Ingenieur, Traites Plasticiques et Compotes (“Paper for reinforcing glass fibers”, papers on plastics and composites).

  In the sizing treatment, a sizing composition containing at least one sizing agent is applied. The same composition may be used for finishing or sizing. At the end of the sizing process, each glass yarn, preferably used as warp yarn, is coated with a coating covering its entire circumference.

  The sized glass yarns more particularly facilitate the increase in the density of the optical fibers in the luminescent fabric and consequently the increase in the illumination level when they are used as longitudinal leashes. To help. The light emitting woven fabric according to this embodiment has an optical fiber density of 10 fibers / cm or more, more preferably 12 fibers / cm or more.

  Regarding the size processing operation, International Publication No. 2009/071812 can be referred to. Suitable sizing agents according to the invention include polysaccharides, preferably natural polysaccharides, in particular starches, starch derivatives, such as carboxymethyl starch or hydroxyethyl starch ether, cellulose derivatives, in particular carboxymethylcellulose (CMC), galactomannans, or others And sizing agents based on protein derivatives. Mention may also be made of sizing agents based on completely synthetic polymers. In this case, they are, for example, polyvinyl alcohol (PVA), polyacrylate, polyvinyl acetate, or else polyester. The sizing agent is applied to the yarn by impregnation before weaving.

  Advantageously, the glass yarn used as warp is sized and contains natural polysaccharides and polyvinyl alcohol as sizing agents.

  The total mass of the sizing agent relative to the total mass of the glass yarn coated with the sizing agent is preferably between 0.1% and 5%, more preferably between 0.5% and 2.5%. . The glass yarn coated with the sizing agent includes a covering made of the sizing agent covering the entire periphery of the yarn.

  According to one embodiment, the woven fabric support comprises warp yarns containing sized glass yarns used as leash yarns and weft yarns containing glass yarns used as leash yarns. The weft is preferably only finished. The leash used as the warp is a sized glass yarn, the weight ratio of which is between 1% and 2.5% of the weight of the yarn coated with the sizing agent.

  The optical fiber can be formed from inorganic or organic materials and can be a one-component optical fiber or a two-component optical fiber.

  The inorganic material is selected from the group including, for example, glass, quartz, and silica. The organic material is selected from the group comprising, for example, polymethyl methacrylate (PMMA), polycarbonate (PC), cyclic olefin (COP) and fluoropolymer.

  The coating can cover them for the purpose of protecting the optical fibers. In this case, the optical fiber is made of two types of materials and has a core covered with a coating that may be of different nature. These structures are also called core-shell structures.

  Particularly highly suitable two-component optical fibers include fibers comprising a polymethylmethacrylate (PMMA) core and a coating based on a fluoropolymer such as polytetrafluoroethylene (PTFE).

  Among the most suitable optical fibers, mention may be made of silica-based one-component optical fibers or two-component optical fibers comprising a silica core and a polymer sheath. By using this type of optical fiber, which is partially or completely inorganic, it is possible to further increase the proportion of inorganic material in the woven fabric support, and in particular, it has unparalleled fire resistance and re-use. It is possible to give availability.

  Advantageously, the woven fabric support is at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90% by weight relative to the weight of the woven fabric support. % Inorganic compounds.

One-component or two-component optical fibers have a diameter of
More than 100 μm, preferably more than 200 μm, more preferably more than 250 μm,
Less than 2000 μm, preferably less than 1000 μm, more preferably less than 750 μm,
Between 100 and 1000 μm, preferably 200 to 550 μm, preferably 450 to 550 μm,
It is advantageous that

  If the fiber used is a core-shell fiber, the thickness of the sheath is between 2 and 15 μm, preferably between 5 and 10 μm.

  The product of the average diameter in micrometer of the optical fiber as the weft or warp and the density of the optical fiber in terms of the number of fibers per centimeter is more than 2000, preferably more than 4000, preferably more than 5000, more preferably more than 6000 It is.

  Optical fibers contain erosion modifiers, corresponding to notches or small slits, which allow light extraction in the fiber because they reflect the angle of reflection of the light inside the fiber and the outside of the fiber This is because a part of the transmission of light in the horizontal direction is changed. Thus, optical fibers allow both carrying light within those structures and emitting light laterally as well. As a result, the optical fiber can distribute and guide light within the luminescent fabric and illuminate the main surface of the luminescent fabric by scattering.

  The erosion modified part can be obtained by various methods, in particular by a polishing method such as sand blasting, chemical erosion, or melting using means of high intensity light such as laser.

  Modification by erosion can be performed on the optical fiber before or after weaving. If it is done after weaving, the erosion modification can be made before or after the additional coatings described below are deposited on the woven fabric support.

  Preferably, the optical fiber includes an erosion modifying portion obtained by sandblasting. Unexpectedly, the sandblasting process does not damage the glass yarn. Furthermore, unexpectedly, this process makes it possible to obtain excellent uniformity of luminance over the entire surface of the luminescent fabric.

If the modified part is made during the subsequent process after weaving,
・ Varying the position of these erosion modification parts so as to define a specific pattern for the purpose of causing characters or symbols to appear or for displaying messages or images,
-For example, to reduce the surface density in the area near the light source, to produce uniform illumination of the luminescent fabric, or to intentionally obtain the illumination gradient, the surface density or size of the erosion modified part that is created Changing the thickness between one area of the woven fabric and the next area,
Is possible.

  Preferably, the optical fiber extends outside the surface defined by the woven fabric corresponding to the end of the luminescent fabric. The optical fibers may be knitted or assembled in bundles to join the various free ends opposite the same light source, preferably at the ends of the luminescent fabric. Regarding the production of the light-emitting woven fabric and the connection of the optical fibers, reference can be made to French Patent Application No. 2859737.

  Thus, the optical fiber includes a free end that can be connected on the opposite side of the light source or located on the opposite side of the light source for the purpose of transmitting light and emitting light laterally at the modification.

The woven fabric support is
· 100~2500g / m ^2, weighing 250~1000g / m ^2, and / or,
A thickness of less than 5 mm, preferably between 0.25 μm and 5 mm,
It is advantageous to have

  The light emitting woven fabric includes one or more point light sources disposed on the opposite side of at least one free end of the optical fiber, preferably at the end of the woven fabric. Alternatively, the woven fabric may include a widened light source disposed on opposite sides of the plurality of free ends of the optical fiber. This or these light sources are connected to an optical fiber. The optical fiber, preferably the end of the optical fiber, is optionally cut or knitted and connected to a light source.

  The light source intended to illuminate the free end of the optical fiber can be of various types, in particular light emitting diodes or wide light sources such as incandescent lamps, fluorescent tubes, or discharge tubes containing gas such as neon. It may be a form. The light source is advantageously a light emitting diode.

  Advantageously, an optical lens may be inserted between the light source and the end for the purpose of collecting light at the end of the optical fiber to limit light transmission loss.

Emitting fabric according to the present invention, the luminance of at least 100 cd / m ^2, more preferably of at least 150 cd / m ^2, more preferably is advantageously at least 200 cd / m ^2. These luminance values are obtained when 150 optical fibers are connected to the light source by an appropriate method, for example, to a light source that emits an appropriate light beam. According to the present invention, the term “luminance” is the intensity of a light source extending in a given direction divided by the apparent area of this light source in this same direction measured according to the luminance standard of ISO 23539: 2005. It is understood to mean. The high brightness allows the luminescent fabric of the present invention to obtain a level of illumination sufficient to constitute an illumination source by itself.

In accordance with the present invention, the luminescent fabric obtains a lighting level sufficient to ensure the lighting equipment function when it meets the recommended lighting value (lux) of European standard NF EN 12464-1 for workplace lighting technology. Is considered to be possible. For example, a light emitting woven fabric (1 m × 1 m) with a luminance of 440 cd / m ² at normal incidence, connected to one or more suitable light sources, can provide 100 lux illumination at 2 m. Yes, this is enough lighting to illuminate the front or entrance hall.

  Therefore, according to the present invention, it is possible to obtain a lighting equipment that can be adjusted through these forms by giving various shapes to the luminescent fabric.

  The light-emitting woven fabric may include additional coatings added, for example, by impregnation of the woven fabric (impregnated coating) or by applying a coating to the surface of the light-emitting woven fabric (surface coating).

  The luminescent fabric of the present invention comprising two surfaces, at least one of which is used as a lighting surface, is also a reflective coating, a structural coating, optionally an intumescent flame retardant coating, good cleanability And at least one additional coating selected from scattering coatings.

  Additional coatings should be distinguished according to their effect on the illumination level. In fact, the luminescent fabric according to the present invention includes two major surfaces that define two major surfaces opposite to each other. These two surfaces are not necessarily equivalent, for example, depending on the weaving method selected. If the additional coating intentionally or otherwise reduces the level of illumination that can be obtained with the luminescent fabric, it is preferably placed on a surface that is not used as the main lighting surface.

  The luminescent fabric may include additional coatings on surfaces that are not used as the main lighting surface, particularly selected from reflective coatings and structural coatings.

  By using a luminescent fabric that includes a reflective coating, it is possible to increase the amount of light that emerges from the sides of the luminescent fabric. The reflective coating may be an opaque, preferably white coating, such as a paint, applied to one of the surfaces of the woven fabric support.

According to the present invention, it is preferred to use a coating that allows to improve both the mechanical and optical properties of the luminescent fabric. These coatings are referred to below as structural coatings,
(I) a binder, and optionally,
(Ii) fillers,
including.

  The filler is generally an inert inorganic material, preferably selected from fillers and / or pigments. Advantageously, the filler is a constituent having a size of less than 80 μm.

  The binder may be, for example, a polyurethane polymer or copolymer, a poly (meth) acrylate polymer or copolymer, such as a styrene-acrylic copolymer, a polyamide polymer or copolymer, a styrene and butadiene copolymer (SBR, “styrene-butadiene rubber”), And / or organic polymer binders selected from polysaccharide-based polymers, in particular starch-based polymers.

  These structural coatings are preferably obtained from a liquid or viscous solution containing a binder, filler, and optionally a solvent or dispersion medium, and any conventional deposition method, particularly padding, dip coating, drying, spraying. It is applied by coating, brushing, roll coating or knife coating. The structural coating according to the invention may be essentially located on the surface of the luminescent fabric after drying, or may penetrate at least a portion of the thickness of the luminescent fabric support.

According to a first variant, the structural coating is a surface coating and remains mainly on the surface of the luminescent fabric. Such coatings contain a substantial proportion of filler. According to this embodiment, the additional structural coating is on a surface that is not used as an illumination surface. The structural coating is by weight relative to the total weight of (i) and (ii)
10% to 60%, preferably 10% to 25% binder (i), and
40% to 90%, preferably 75% to 90% filler (ii),
including.

  Preferably, the total weight of (i) and (ii) represents at least 90%, at least 95%, more preferably at least 99% of the total weight of the structural coating.

  A particularly preferred structural surface coating according to the invention for ensuring the dimensional stability of the woven fabric preferably comprises a structural coating comprising an acrylic binder, an inorganic filler, such as calcium carbonate, and optionally a pigment. Can be mentioned.

  This coating can be obtained by applying a composition, preferably an aqueous composition, having a high solids content, preferably greater than 65%.

Structural coatings Such additional of 25~1000g / m ^2, preferably of 50 to 250 g / m ^2, advantageously preferably present in an amount of at least 120 g / m ^2. The weight of the coating per unit surface area corresponds to the weight of the dried coating, i.e. after removal of the optional solvent or dispersion medium.

  According to one variant, the additional structural coating may be an impregnated coating. Such a coating is obtained by application of a composition having a lower solids content. Preferably, these coatings also have a smaller weight ratio of filler (ii) to the total weight of (i) and (ii). They can be applied to surfaces that are not used as the main illumination surface and / or to surfaces that are used as the main illumination surface. The purpose of these coatings is primarily to improve mechanical strength. These coatings are not necessarily opaque. These coatings are not incompatible with treatments aimed at creating erosion modifiers in the optical fiber and do not interfere with light extraction. Thus, such a coating can be deposited directly on the woven fabric support, in particular directly on the surface of the luminescent fabric subjected to the treatment, prior to the step of creating the erosion modification.

The impregnated structural coating is by weight relative to the total weight of (i) and (ii)
70% to 100%, preferably 70% to 98% binder (i), and
0-30%, preferably 2-30% filler (ii),
Can be included.

Such additional structural coating is advantageously present in an amount of 25 to 1000 g / m ² , preferably 25 to 100 g / m ² .

  Structural coatings may also be reflective, especially if they contain reflective fillers or non-absorbing fillers for opacification, such as calcium carbonate and / or titanium dioxide.

  These structural coatings are advantageously white. For this purpose, the structural coating is preferably at least 2%, preferably at least 5%, and more preferably at least 10% of a white pigment, such as titanium dioxide, barium sulfate, by weight relative to the total weight of the structural coating. Including zinc sulfate or zinc oxide.

  The reflective structural coating is preferably applied to a surface that is not used as the main illumination surface. In this case, the structural coating preferentially reflects the light emitted by the woven fabric support on the side selected to be the illumination surface. The use of such a structural coating allows for an increase in brightness, i.e. a luminescent fabric comprising said coating can show an increase in brightness compared to the same luminescent fabric without said coating.

  The luminescent fabric is optionally selected from a flame retardant coating that is inflatable, a coating with good detergency, and a scattering coating, preferably an additional coating that is transparent or translucent. It can be included in a surface used as a surface.

  The luminescent fabric may comprise a flame retardant coating that imparts fire resistance properties, preferably transparent, and optionally inflatable. Preferably, the flame retardant and / or expandable coating is applied at least to the surface used as the illumination surface.

  The expression “flame retardant coating” makes it possible to prevent or retard the burning of a coating that imparts flame retardant, ie when the underlying material is exposed to excessive heat, and / or It is understood to mean a coating that makes it possible to retard the spread of the flame in the material.

  The expression “expandable coating” is understood to mean a coating which can be expanded when exposed to excessive heat and which allows to retard the burning of the coated article.

  The flame retardant coating comprises a flame retardant selected from, for example, phosphorus-containing compounds and halogen-containing compounds such as oxides, hydroxides or mixtures, and inorganic fillers.

  The flame retardant and inflatable coating includes an inflating agent comprising a composition comprising at least an acid source, a carbon source, and a gas source. The source of the acid can be selected from phosphorus-containing compounds and sulfate-containing compounds. Preferably, the acid source comprises at least one phosphorus-containing compound selected from ammonium phosphate. The source of carbon can be selected from hydroxylated compounds, particularly polyhydric alcohols such as pentaerythritol and dipentaerythritol. The source of the gas can be selected from nitrogen-containing compounds, in particular melamine and its derivatives, dicyandiamide, or urea.

  As an optionally intumescent flame retardant coating, Char17, an inflatable varnish sold by IRIS Vernici, is suitable.

The flame retardant coating is advantageously present in an amount of 100 to 350 g / m ² , preferably 150 to 250 g / m ² .

  The thickness of the flame retardant coating is advantageously between 50 and 500 μm, preferably between 100 and 250 μm, preferably less than 200 μm.

  The luminescent fabric may include a coating having good cleanability. This property can be obtained, for example, by selecting a formulation that makes the coating smooth, non-porous and / or resistant to certain solvents or water. Thus, it is easy to clean the surface of the luminescent fabric containing the coating by simply passing a sponge over it.

  The luminescent fabric may include a colored decorative coating containing pigments or organic pigments.

  The light emitting woven fabric may include a scattering coating. This coating optimizes the light flatness by incorporating the final appearance of the woven fabric, incorporating decorative elements (patterns, images, colors, messages) and / or light from the woven fabric. It becomes possible to change. The scattering coating can be selected from scattering polymer films, such as Duratrans films, boil-type scattering fabrics, and Satinovo® type glass plates. The scattering coating can be bonded to the luminescent fabric support by any known means, for example, bonding with an adhesive.

  The additional coating may combine several functions. Advantageously, the optionally intumescent flame retardant coating can also have good detergency. The structural coating may be a colored decorative coating.

The luminescent fabric may also include a number of additional coatings. As an example,
-Additional structural coatings on surfaces that are not used as lighting surfaces, and
An additional coating selected from an optionally intumescent flame retardant coating, a coating with good cleanability, and a diffusible coating on the surface used as the lighting surface;
Can be mentioned.

  The luminescent fabric may advantageously include multiple sets of colors, to obtain these colors, not only the light source used to illuminate the optical fiber, but also color various optical fibers or leno thread. It may be.

  The fiber coloring means using a yarn colored before weaving or coated with a colored layer, or printing a colored pattern on a woven fabric support by a method such as screen printing or inkjet printing after weaving. Is understood to mean.

  Thus, the woven fabric support may be white, which corresponds to the natural appearance of glass fibers, or may be colored in another color by using glass fibers that are colored or coated prior to weaving. Good.

  The luminescent fabric may include at least one luminescent decorative pattern located on at least a portion of the surface of the luminescent fabric capable of emitting light. This decoration pattern may be obtained by performing a process of creating an erosion modifying portion in the part of the surface of the woven fabric provided for the decoration pattern. The pattern is formed, for example, using a mask or stencil prior to processing that allows light extraction. In this embodiment, the fabricated product can be made to obtain individual woven fabrics from a standard woven fabric support, and these woven fabrics have the light when the light source is switched off. A pattern is generated due to the difference in reflection of light and the difference in intensity of light extraction when the light source is switched on.

  The woven fabric support may comprise a “woven” decorative pattern or decorative weave, in particular a jacquard weave pattern. According to the invention, the expression “Jacquard weave pattern” means a pattern obtained by producing a woven fabric support that combines several types of weaving in the same woven fabric support. Understood. Jacquard weave allows very compact patterns by using colored yarns and even allows image reproduction. Thus, a jacquard weave pattern corresponds to a pattern created by a weave or color change in the region of the woven fabric support. In this case, the decorative pattern may define a logo or beacon message that is obtained directly from the weaving of the areas where the optical fiber surface density is different. The jacquard weave pattern can be processed in positive mode (light-emitting pattern on the switched background) or negative mode (non-light-emitting pattern on the light-emitting background) as desired.

  The present invention also relates to a method for producing a luminescent fabric as defined above. The method includes the step (b) of weaving an optical fiber and bonding the fibers to form a woven fabric support, the entangled fiber for bonding includes glass yarn, and the glass yarn forms a woven fabric support. This corresponds to at least 50% by weight relative to the total weight of the yarn.

  This method advantageously comprises a step (a) of sizing the glass yarn, which is carried out before the weaving step.

  The method includes the step (c) of creating an erosion modification in the optical fiber, preferably performed after the weaving step.

  The method advantageously includes the step of applying one or more additional coatings to one or each side of the woven fabric support. If the luminescent fabric includes an additional impregnated coating applied to the surface intended to serve as the main lighting surface, the step (c) of creating an erosion modification, preferably sandblasting, comprises the coating May be carried out after the application of, i.e. on the woven fabric before impregnation.

  The method advantageously includes the step of creating a decorative pattern on a portion of the surface of the luminescent fabric, the decorative pattern comprising creating an erosion modifier on a portion of the surface of the luminescent fabric provided for the decorative pattern. It is obtained by executing (c).

  The method includes the step (d) of optically connecting the optical fiber to a light source. During this process, the end of the optical fiber, preferably optionally cut or knitted, is connected to the light source.

The method for producing a luminescent fabric according to the present invention comprises the following steps:
A step (a) of sizing the glass fiber;
-Weaving process (b),
A step (c) of creating an erosion modified portion by, for example, sandblasting, laser treatment, chemical treatment,
-Optically connecting the optical fiber to the light source (d),
A step of electrically connecting the light source (e),
Can be included.

  The luminescent fabric can have a function of decoration and / or lighting according to its brightness. In particular, it makes it possible to provide lighting, ambient lighting or backlighting specifically for displays.

Luminous woven fabric
・ Standard weave, uniform
By providing a geometric or shaped pattern (Jacquard weave pattern) made on the woven fabric support, or by repeating a uniform woven fabric support (decorative, scattering or transparent film or woven fabric) Be decorative by masking, printing, bonding with adhesives, taking out light controlled by deposition),
・ It is for information transmission by providing a logo, message, identification information, or sign,
Can do.

  Luminous woven fabrics allow light to be generated over part or all of their surfaces. More particularly, they are suitable for interior lighting or residential lighting on walls, partitions, ceilings or floors as a design or decorative product.

  Luminous woven fabric is used as a partition that divides two spaces, especially as a very delicate partition that emits light to equip offices, apartment houses, or small houses, such as partition walls or shoji (Japanese style partitions). May be.

  Luminous woven fabric is a luminous wall covering material that is painted, varnished, bonded and / or suspended with the purpose of covering all or part of a partition selected from walls, floors or ceilings or It may be used as a freeze. The light-emitting woven fabric may be suspended using staples or attachments conventionally used to attach and suspend the fabric.

  Luminous woven fabrics may be used to make luminous blinds such as vertical blinds, shojis, roll-up blinds, and venetian blinds.

  The luminescent fabric may be used as a component of a flat or three-dimensional lighting fixture, which components are glued to or suspended from a support or are self-supporting. It may form a thin and light roll-up light emitting surface that can be spread out for the purpose of lighting buildings that are light or even movable, such as tents, awnings and pergola. It is possible to make it.

  Luminous woven fabrics may also be used as diffused light sources in the form of light-emitting panels or boards, which are movable or non-movable partitions, partitions used to organize and divide freely available space. It is intended to illuminate, or to illuminate buildings with no natural light and windows, or buildings used for high-precision work (watchmaking, jewelry, electronic components, etc.). It may be used in light-emitting devices for phototherapy or welfare purposes by simulating a daily cycle and sunlight with a suitable light source.

  The light-emitting woven fabric can be used as illumination even in an ATEX (explosive atmosphere) or humid environment, or in a state immersed in water because the power source for the light source is an offset type and has a low voltage. In this case, the advantage of an optical fiber is that it can provide light at a significant distance from the power source and thus from the potential spark source. Therefore, the light-emitting woven fabric enables light to be extracted from the optical fiber over a large area, and thus is directed to an offset diffuse light source (light, character / symbol surface or path) that can be applied in the ATEX area. The road is opened.

  Finally, luminescent fabrics that include offset low voltage power supplies are also an advantageous solution for lighting in all wet environments, such as swimming pools, bathing facilities, and also outdoor signage applications.

I. Yarns and fibers used The table below summarizes the properties of the glass yarns and optical fibers used. E glass yarn was used as warp and as weft.

II. Tested Woven Fabric Support The method of weaving the produced woven fabric support is as follows.
Upper side (corresponding to the main lighting surface): 4, 8, and 12 harness satin weave.
・ Lower: Plain weave.

  The tangled yarn used as the warp is a sized glass yarn having a density of 7.9 pieces / cm. The leash yarns used as weft yarns are all glass yarns.

The following parameters were examined.
-Density of the optical fiber used as the weft: 8 to 12 fibers / cm.
-Density of glass yarn used as weft yarn: 8-12 pieces / cm.
-Number of tex of glass yarn used as side tangled yarn: 136 and 204 tex.
Optical fiber diameter: 250 and 500 μm.

  WW% corresponds to both the weight ratio of the inorganic compound to the weight of the woven fabric support and the weight percentage of the glass yarn to the weight of the woven fabric support.

  For the purpose of obtaining good weavability and sufficient mechanical strength, the choice of weaving, the density of the optical fibers and the density of the entangled fibers, in particular to avoid the knots being too close or too far apart Adapted.

  The woven fabric support was then passed through a processing step to create an erosion modification in the optical fiber. This processing step was performed by sandblasting or by laser ablation. Next, the process of connecting an optical fiber was performed. This process consists of bundling together a specific number of optical fibers according to their diameter, and connecting the ends of the optical fibers to a system containing a light source. The light source used was a light emitting diode (OSRAM Dragon Plus (registered trademark) LUW W5AM LED).

III. Evaluation of optical performance The woven fabric support was cut into a plurality of samples, and was subjected to abrasion treatment by sandblasting or laser ablation for the purpose of forming an erosion modified portion in the optical fiber. Thereafter, the luminance was measured perpendicular to the light emitting surface, and the relative standard deviation was also measured. The luminance value is obtained when 150 optical fibers are connected by an appropriate method to a light source that emits an appropriate luminous flux.

  These luminescent fabrics have good opacity without additional coating and also have high and uniform brightness values.

  Surprisingly, and more particularly with respect to sandblasting, the glass yarn is not changed during this process. More importantly, a small relative standard deviation is obtained by sandblasting. These small standard deviations demonstrate the excellent brightness uniformity of the luminescent fabric.

  The best lighting performance is obtained with a woven fabric support comprising optical fibers having a diameter of 500 μm and a density of at least 8 / cm, preferably at least 10 / cm, and better at least 12 / cm. The use of sized glass yarn as warp contributes to the possibility of increasing the density of the optical fiber.

IV. Evaluation of fire resistance The fire protection behavior during a fire is evaluated according to two criteria: fire response and fire resistance. If the total calorific value (GCV) measured according to the EN ISO 1716 standard is below a threshold, it is considered a uniform material that reacts satisfactorily to fire. The GCV corresponds to the amount of heat released by complete combustion of a unit mass of fuel, and the generated water is completely condensed at the end of the work. It is expressed in megajoules per unit kilogram (MJ / kg). Therefore, for the purpose of evaluating the reaction to fire, the total calorific value (GCV) is measured by the following woven fabric, that is,
-PES woven fabric: a woven fabric including a string made of polyester (100%),
-Woven Cloth B: Luminescent woven fabric containing optical fiber and polyester leash as described in French Patent Application No. 2859737,
A light-emitting woven fabric 1 of the present invention comprising a woven fabric support and no additional coating,
A light-emitting woven fabric 11 of the present invention comprising a woven fabric support and no additional coating,
Went about.

  The light-emitting woven fabric of the present invention has particularly advantageous reaction characteristics against fires as exemplified by a significant reduction in GCV compared to the GCV of existing woven fabrics.

V. Addition of additional coating Structural coating The structural coating composition tested was
An acrylic type binder selected from styrene-acrylic binders and / or starch based binders,
・ Calcium carbonate as filler, and
TiO ₂ type white pigment,
including. These compositions contain water as a solvent.

Compositions A and B form an impregnated structural coating after application. They can be applied to one or each of the surfaces of the woven fabric support that emit light. The amount deposited on the woven fabric support using a spatula is each 26 g / m ² (Composition A) on a single surface, and when these compositions are applied to each of the surfaces 42 and 46 g / m ² for compositions A and B, respectively.

  Compositions 2 and 3 were also tested, containing 5% and 10% pigment by weight, respectively, relative to the dry matter weight of the composition (corresponding to the weight of the coating). The solids content of these compositions is over 50%.

  Each of Compositions 1-3 was applied by knife coating to a single surface of various luminescent fabrics. Drying was performed at ambient temperature.

In the table below,
The basis weight of the uncoated light emitting woven fabric corresponding to the basis weight of the luminescent woven fabric support (basis weight in g / m ² ),
The basis weight of the applied coating obtained after application of composition 1;
Indicates.

  Luminance measurements made on these various luminescent fabrics optionally coated with a structural coating indicate an increase associated with the presence of at least 9% structural coating.

  Fire resistance tests performed on these various luminescent fabrics coated with structural coatings and without flame retardant coatings show that they retain fire resistance properties and obtain excellent mechanical strength.

  CIE94 colorimetric measurements were performed on the luminescent woven fabric comprising the woven fabric support 11 coated with the structural coating obtained from composition 1, 2 or 3.

  Advantageously, at least 10% by weight of white pigment is present, based on the total weight of binder and filler in the structural coating.

2. Optical performance of woven fabric coated prior to sandblasting treatment The light emitting woven fabric comprising the woven fabric support 7 is coated prior to the step of creating an erosion modifier. The first light-emitting woven fabric is obtained by depositing the composition B on each surface. A second woven fabric is produced, which is obtained from composition 1 deposited on a surface that is not intended to be used as the main lighting surface, and thus on a surface that is not directly subjected to the step of creating an erosion modification by sandblasting. Structural coating (back coating).

  The luminous performance after sandblasting of the luminous woven fabric comprising the structural coating obtained from composition B or 1 is shown in the table below. These luminance values are obtained when 150 optical fibers are connected to a light source that emits an appropriate luminous flux by an appropriate method.

  The luminescent raw woven fabric can advantageously be mechanically reinforced with a structural coating prior to a sandblasting process intended to allow light extraction. In this case, the luminous performance is very similar to the same woven fabric with the back simply coated.

3. Flame Retardant Coating A flame retardant coating obtained from a composition containing a swelling agent was used. These flame retardant coatings are applied to one side of the luminescent fabric. These luminescent fabrics may include a structural coating. The thickness of the flame retardant coating is about 200 μm.

  The fire resistance test shows that in all cases the fire resistance can be improved by the use of a flame retardant coating.

In conclusion, from these tests, in order to obtain a luminous woven fabric having simultaneously excellent lighting properties, satisfactory mechanical strength and excellent fire resistance,
The selection of raw materials, in particular the type of yarn, its density, and its tex number, and therefore indirectly the density of the woven fabric support,
-Selection of the type of weaving, especially the number of knots affecting the mechanical strength of the woven fabric support,
The optional use of a structural coating that makes it possible to compensate for the use of a weave with almost no knots,
It is shown that there is a need to find a compromise between the two.
Exemplary embodiments of the present invention include the following:
<< Aspect 1 >>
A light-emitting woven fabric comprising a woven fabric support comprising warp yarns and weft yarns selected from entangled yarns and optical fibers capable of emitting light in the transverse direction, wherein the entangled yarns comprise the woven fabric support. A light-emitting woven fabric comprising glass yarn corresponding to at least 50% by weight of the total weight of the leno thread to be formed.
<< Aspect 2 >>
The light-emitting woven fabric according to aspect 1, characterized in that the glass yarn corresponds to at least 30% by weight of the woven fabric support.
<< Aspect 3 >>
Includes two surfaces, at least one of which is used as an illumination surface, and a reflective coating, a structural coating, an optionally intumescent flame retardant coating, a coating with good cleanability, and diffusion 3. Luminescent woven fabric according to embodiment 1 or 2, characterized in that it comprises at least one additional coating selected from coatings.
<< Aspect 4 >>
The light-emitting woven fabric according to aspect 3, wherein the surface used as the illumination surface includes a flame-retardant coating.
<< Aspect 5 >>
The light-emitting woven fabric according to the aspect 3 or 4, characterized in that a structural coating is included on a surface that is not used as an illumination surface.
<< Aspect 6 >>
The structural coating is by weight relative to the total weight of (i) and (ii);
10% to 60% binder (i), and
40% to 90% filler (ii),
The light-emitting woven fabric according to aspect 5, characterized by comprising:
<< Aspect 7 >>
In any one of aspects 3-6, including an impregnated structural coating on the surface that does not serve as the main illumination surface and / or on the surface that serves as the main illumination surface The luminous woven fabric described.
<< Aspect 8 >>
The impregnated structural coating is by weight relative to the total weight of (i) and (ii);
70% to 100% binder (i), and
0-30% filler (ii),
The light-emitting woven fabric according to aspect 7, characterized by comprising:
<< Aspect 9 >>
9. The luminescent fabric according to any one of aspects 3 to 8, wherein the structural coating is reflective.
<< Aspect 10 >>
Including a structural coating on surfaces that are not used as lighting surfaces;
The surface used as the lighting surface optionally includes an additional coating selected from a flame retardant coating that is inflatable, a coating with good cleanability, and a scattering coating;
The light-emitting woven fabric according to any one of aspects 3 to 9, wherein:
<< Aspect 11 >>
The light-emitting woven fabric according to any one of aspects 1 to 10, wherein the diameter of the optical fiber is between 100 μm and 1000 μm.
<< Aspect 12 >>
Luminescent woven fabric according to any one of aspects 1 to 11, characterized in that the warp yarns comprise sized glass yarns used as tangled yarns.
<< Aspect 13 >>
An optical fiber having a diameter of 500 μm or more, used as weft and / or warp at a density of at least 8 strands / cm, and
-Warp yarns, including sized glass yarns used as leno thread
The light-emitting woven fabric according to any one of aspects 1 to 12, characterized by comprising:
<< Aspect 14 >>
The light emitting woven fabric according to any one of aspects 1 to 13, further comprising at least one light source connected to at least one end of the optical fiber.
<< Aspect 15 >>
A method for producing a light-emitting woven fabric according to any one of aspects 1 to 14, comprising the step (b) of weaving an optical fiber and a entangled fiber to form a woven fabric support, said entangled fiber Comprising a glass yarn corresponding to at least 50% by weight of the total weight of the leno thread forming the woven fabric support.

Claims (14)

A light-emitting woven fabric comprising a woven fabric support formed from an optical fiber and tangled yarn ,
The woven fabric support includes warps and wefts;
The optical fiber is formed of an organic material capable of emitting light laterally;
- the observed yarn from and has Nde containing glass strands corresponding to at least 50% by weight of the total weight of the yarn viewed from forming the weaving fabric support,
The glass yarn corresponds to at least 30% by weight of the weight of the woven fabric support;
The woven fabric support includes glass yarn as warp and a combination of glass yarn and optical fiber as weft;
-The density of the glass yarn used as the warp is at least 5 per cm.
-The density of the glass yarn used as the weft is at least 5 per 1 cm,
-The density of the optical fiber as the weft is at least 5 per 1 cm,
Emission fabric characterized in that it. At least one selected from a reflective coating, a structural coating, a flame retardant coating, a coating with good cleanability, and a diffusion coating. The luminescent fabric according to claim 1, characterized in that it comprises an additional coating. Luminescent woven fabric according to claim 2 , characterized in that it comprises a flame retardant coating on the surface used as the lighting surface. The light-emitting woven fabric according to claim 2 or 3 , characterized in that it comprises a structural coating on a surface that is not used as an illumination surface. The structural coating is by weight relative to the total weight of (i) and (ii);
10% to 60% binder (i), and 40% to 90% filler (ii),
The light-emitting woven fabric according to claim 4 , comprising: The role surface in the role of the play does not face and / or to the main lighting surface as the main lighting surface, characterized in that it comprises a structural coating impregnated, any one of claims 2-5 Luminous woven fabric described in 1. The impregnated structural coating is by weight relative to the total weight of (i) and (ii);
70% to 100% binder (i), and 0 to 30% filler (ii),
The light-emitting woven fabric according to claim 6 , comprising: The luminescent fabric according to any one of claims 2 to 7 , characterized in that the structural coating is reflective. Including a structural coating on surfaces that are not used as lighting surfaces;
Including on the surface used as the lighting surface an additional coating selected from a flame retardant coating, a coating with good cleanability, and a scattering coating;
The light-emitting woven fabric according to any one of claims 2 to 8 , wherein The light-emitting woven fabric according to any one of claims 1 to 9 , wherein a diameter of the optical fiber is between 100 µm and 1000 µm. Characterized in that it comprises glass strands the warp is sized is used as a leno thread, emitting textile fabric according to any one of claims 1-10. An optical fiber having a diameter of 500 μm or more, used as weft and / or warp at a density of at least 8 strands / cm, and
-Warp yarns, including sized glass yarns used as leno thread
Characterized in that it comprises a light emitting textile fabric according to any one of claims 1 to 11. The light-emitting woven fabric according to any one of claims 1 to 12 , further comprising at least one light source connected to at least one end of the optical fiber. A method for producing a light-emitting woven fabric according to any one of claims 1 to 13 , comprising the step (b) of weaving an optical fiber and a tangled fiber to form a woven fabric support, A method for producing a luminescent woven fabric, characterized in that the fiber comprises glass yarns corresponding to at least 50% by weight of the total weight of the leno yarns forming the woven fabric support.