A luminescent fabric and its preparation method and application

Abstract

The present application relates to a kind of luminous fabric and its preparation method and application, belong to functional textile technical field.Light-emitting fabric includes ordinary textile yarn and linear light guide that are interwoven with each other, and the cladding of linear light guide is removed at preset discrete point to expose the core to form light-emitting point.Its preparation method includes weaving step and laser dotting step: linear light guide and ordinary textile yarn are interwoven to form fabric gray cloth, then laser is used to ablate and remove the cladding of linear light guide at predetermined discrete point and expose the core, form light-emitting point.The luminous fabric can be applied to vehicle interior or home decoration.The present application realizes the industrialized mass production of light-emitting fabric by the combination of weaving and laser ablation, production efficiency is high, product weather resistance is strong, optical consistency is good, and it is flexible sheet, can be adapted to a variety of application scenarios.

Description

Technical Field

[0001] This invention belongs to the field of functional textile fabric technology, specifically relating to a luminescent fabric, its preparation method, and its application. Background Technology

[0002] Decorative fabrics with dot-matrix luminescent effects are commonly used in the interiors of vehicles, homes, and yachts for products such as starry sky ceilings, upholstered door panels, curtains, and luminescent decorative paintings. Currently, the mainstream manufacturing process for these luminescent fabrics is the manual fiber optic insertion process. The specific steps are as follows: first, a finished base fabric is prepared; then, holes are manually drilled into the fabric surface; next, operators insert individual plastic optical fibers into the drilled holes one by one; the ends of the optical fibers are glued to the back of the fabric; finally, the ends of multiple optical fibers are bundled together and coupled to an LED light source, relying on the optical fibers to guide the light and achieve dot-matrix luminescence on the fabric surface.

[0003] Meanwhile, traditional warp knitting weft laying equipment adopts a passive traction yarn feeding structure, which relies on the traction action of the equipment to complete the weft laying of the yarn. This structure is only suitable for conventional textile yarns with good flexibility and low hardness. Optical fibers are hard and have poor bending resistance. They are very easy to break under passive traction stress. Existing weaving equipment cannot directly weave optical fibers and ordinary yarns into an integrated fabric.

[0004] The existing manual fiber optic insertion process has several inherent technical defects: low automation, complete reliance on manual operation, and time-consuming fiber optic insertion for single products, making it unsuitable for automated production lines and unable to meet the large-scale production needs of automotive interior components; the fiber optics are fixed by adhesive bonding without the physical restraint structure of the fabric itself, making the adhesive prone to aging and failure in the high temperature and high humidity environment inside the vehicle, leading to loosening and detachment of the fiber optics; under vehicle vibration conditions, exposed fiber optics are prone to fatigue fracture, and the finished product cannot meet the automotive-grade high and low temperature, vibration aging durability test requirements; the consistency of manual drilling and fiber optic cutting operations is poor, resulting in inconsistent fiber optic embedding depth and end face length, high dispersion in the size and brightness of the light-emitting points on the fabric surface, and poor consistency in optical decorative effects; the processing technology involves first forming the fabric and then drilling and inserting the fiber, which can only be implemented on thick and rigid substrates, and cannot be adapted to thin, flexible curved interior components, limiting the product's application scenarios.

[0005] In summary, existing manual fiber insertion processes and traditional passive weft-laying equipment both have insurmountable technical shortcomings. The industry urgently needs a luminescent fabric and its preparation process that can be automatically mass-produced, has a durable and reliable structure, uniform luminescence effect, and is compatible with various flexible curved substrates. Summary of the Invention

[0006] The purpose of this invention is to provide a luminescent fabric, its preparation method, and its application, aiming to solve the technical problems of low production efficiency, poor weather resistance and reliability of finished products, uneven luminescence effect, and difficulty in adapting to flexible curved interior surfaces in the existing manual fiber insertion process. At the same time, it overcomes the defect of traditional weaving equipment that is prone to fiber breakage due to passive pulling, and realizes automated mass production of luminescent fabrics.

[0007] On the one hand, the present invention provides a method for preparing luminescent fabric, which adopts the following technical solution: A method for preparing a luminescent fabric includes a weaving step and a laser dotting step; The weaving step is as follows: multiple linear light guides and ordinary textile yarns are interwoven according to a predetermined weaving process to form a fabric greige. The laser dotting step is as follows: using a laser to ablate the predetermined discrete points on the linear light guide, removing the cladding of the linear light guide and exposing the fiber core to form light-emitting points.

[0008] Preferably, the order in which the weaving step and the laser dotting step are performed is selected from one of the following two methods: Method 1: Perform the weaving step first, then perform the laser dotting step; Method 2: First, laser-mark a single linear light guide, then interweave the marked linear light guide with ordinary textile yarn to form a greige fabric.

[0009] Preferably, the weaving step specifically includes: Nine fiber optic yarn tubes are grouped together, and two groups are connected in series to produce yarn, resulting in a total of 18 linear light guides producing yarn in the same direction and perpendicularly. After the linear light guide passes through pulley one, pulley two, and pulley three in sequence to complete the tension adjustment, it is evenly laid into the yarn guide needle and then interwoven with ordinary textile yarn to form a shape.

[0010] Preferably, the laser dotting step specifically includes: A carbon dioxide laser is used, and the parameters of the carbon dioxide laser include: speed 200-300mm / s, power 8.5-10.5W, and frequency 15-25kHz; the laser energy only removes the surface layer of the fabric and the cladding of the linear light guide, without damaging the core of the linear light guide.

[0011] Preferably, a pretreatment step is provided between the weaving step and the laser dotting step. The pretreatment is at least one of cutting, heat setting, and napping. The preset temperature for heat setting is 85°C. The napping length of the fabric surface is 0.3-1.0 mm.

[0012] Preferably, after the laser dotting step, a post-processing step is also included, which includes beam-gathering and / or composite processing; The bundled processing is as follows: the multiple linear light guides of the luminescent fabric are bundled according to a predetermined rule, and the ends of the linear light guides are converged and fixed through aluminum tubes and black PVC sleeves to couple and connect with the light source. The composite process involves bonding the luminescent fabric with one or more functional composite layers using a hot melt adhesive composite process, an adhesive bonding process, or an adhesive film composite process, followed by cold pressing after the composite process is completed.

[0013] On the one hand, the present invention also provides a luminescent fabric prepared by the above-described method, which adopts the following technical solution: A luminescent fabric, comprising: Ordinary textile yarns; and A linear light guide interwoven with the ordinary textile yarn; It also includes independent light-emitting points distributed on the surface of the light-emitting fabric.

[0014] Preferably, the linear light guide is any one of end-face emitting plastic optical fiber, glass optical fiber, polymer light guide, and side-emitting optical fiber.

[0015] Preferably, the luminescent fabric has a light-shielding layer on the side opposite to the independent light-emitting point; the light-shielding layer is any one of sponge, non-woven fabric, and foam layer; The surface of the light-shielding layer is provided with a functional layer; the functional layer includes at least one of a flame-retardant layer, a sound-insulating layer, and a touch-sensing layer.

[0016] On the other hand, the present invention also provides the application of luminescent fabrics prepared by the above-described method in vehicle interiors or home decorations.

[0017] In summary, the present invention has the following beneficial technical effects: 1. This invention interweaves multiple linear light guides with ordinary textile yarns in a single weaving process, followed by a laser ablation process to perform batch, high-speed, targeted ablation of the light guides on the fabric surface. This eliminates the inefficient manual drilling and fiber insertion methods of existing technologies, transforming the traditional manual luminescent fabric production process into an automated assembly line operation of weaving-laser ablation. Practical verification shows that using this method can increase production efficiency to more than 10 times that of the original manual method, and manufacturing costs are expected to decrease by more than 50%.

[0018] 2. In this invention, the linear light guide is integrated into a fabric structure through a weaving process, where it interweaves with ordinary textile yarns. The light guide is tightly wrapped and fixed within the fabric by the yarns. This physically fixed structure fundamentally eliminates the problems of loosening or displacement of the light guide caused by glue aging and detachment. This allows the luminescent fabric to withstand temperatures from -40℃ to 105℃, significantly improving structural reliability under vibration conditions. Furthermore, it can pass automotive-grade climate cycling aging tests, making it particularly suitable for applications with extremely stringent reliability and environmental adaptability requirements, such as automotive interiors. This effect primarily stems from the physically fixed structure formed by the interweaving of the yarns and the light guide during the weaving process.

[0019] 3. This invention uses laser ablation technology to form luminescent points on the surface of the light guide. The non-contact nature and high-precision control of laser processing allow for precise setting of the ablation depth, width, and position of each luminescent point. Compared to existing methods that result in inconsistent brightness of luminescent points due to manual cutting of fiber end faces, this invention achieves a luminescent point positioning accuracy better than 0.1mm, presenting a uniform and refined luminous decorative effect. Furthermore, by simply changing the dot coordinate data of the laser equipment, any luminescent pattern can be flexibly customized without replacing any hardware or adjusting the process flow, greatly reducing pattern customization costs and shortening the product iteration cycle.

[0020] 4. The luminescent fabric of this invention possesses excellent flexibility, cutability, and sewing properties, allowing it to be easily attached to any curved or flat substrate through conventional textile post-processing methods such as cutting, sewing, molding, and lamination. This luminescent fabric can be used not only in traditional automotive starry sky headliners but also extensively in numerous fields requiring flexible luminescent decoration, such as automotive door panels, dashboards, seat covers, yacht interiors, home curtains, luminescent wall coverings, and decorative paintings, demonstrating strong market adaptability and industrialization potential. Attached Figure Description

[0021] Figure 1 A schematic diagram showing the arrangement and tension adjustment of the fiber optic weft yarn support frame; Figure 2 This is a schematic diagram of the tension adjustment wiring for the fiber optic pulley system. Figure 3 A top-view diagram of the fiber optic threading path; Figure 4 A schematic diagram illustrating the principle of laser ablation for preparing luminescent points. Figure 5 A schematic diagram of the luminescent surface structure of a luminescent fabric; Figure 6 This is a schematic diagram of the back structure of the luminescent fabric; Figure 7 Schematic diagram of the fiber end bundle fixing structure; Figure 8Brightness distribution test diagram of PV2005 luminescent fabric before and after climate cycle aging.

[0022] Explanation of reference numerals in the attached diagram: 1. Fiber optic yarn tube; 2. Yarn frame; 3. Tension control ring; 4. Yarn collecting plate; 5. Pulley 1; 6. Pulley 2; 7. Pulley 3; 8. Yarn guide needle; 9. Linear light guide; 10. Carbon dioxide laser; 11. Independent light-emitting point; 12. Light-shielding layer; 13. Aluminum tube; 14. Black PVC sleeve; 15. Yarn separator. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to specific embodiments. Those skilled in the art should understand that the following embodiments are only used to explain the present invention and are not intended to limit the scope of protection of the present invention; all process, structure and material terms in the embodiments are consistent with the contents recorded in the claims, and all raw materials and equipment can be obtained through commercial channels.

[0024] Example Example 1 This embodiment provides a method for preparing luminescent fabric, which adopts a "weaving step followed by a dotting step" implementation method, specifically including the following steps: S1. Weaving Steps Reference Figures 1 to 3 An end-face light-emitting plastic optical fiber is used as the linear light guide 9. An optical fiber yarn tube 1 is configured, with 9 optical fiber yarn tubes as a group. Two groups are set up and connected in series with iron rods, for a total of 18 linear light guides that produce yarn in the same direction and vertically. The 18 optical fiber yarn tubes 1 are divided into two groups of 9 each. Each group is connected in series with iron rods and hung on the yarn frame. Specifically, the optical fiber yarn tube 1 is installed vertically with its axis vertical, and the linear light guide 9 is led out from the end face of the optical fiber yarn tube 1 along the axis.

[0025] After the linear light guide 9 emerges from the yarn, it first passes through the tension control ring 3 weighing 50g to complete the initial tension adjustment. Then, it is gathered by the yarn collecting plate 4. The 18 linear light guides 9 pass through pulley 1 5, pulley 2 6, and pulley 3 7 in an S-shaped path. Each pulley is 8cm×8cm in size. After completing the full tension adjustment, they enter the yarn separator 15. The yarns are divided into two groups of 9 and then evenly spread into the yarn guide needle 8. They are interwoven with ordinary textile yarns according to the predetermined textile process to form a whole fabric.

[0026] It should be noted here that... Figure 1 This is a frontal schematic diagram from the yarn exit end to the weaving end, fully showing the arrangement of the yarn frame 2, the initial adjustment of the tension control ring 3, and the assembly structure of the yarn collecting plate 4, omitting the pulley block part; Figure 2 This is a reverse diagram from the weaving end to the yarn exit end, focusing on the tension adjustment thread structure of the three pulley blocks. The tension control ring 3 parts are omitted. The thread logic of the two attached diagrams is the same, only the emphasis and perspective are different.

[0027] This embodiment uses a Karl Mayer MSU warp knitting machine, size E20 (20 needles / inch). Ordinary textile yarns are used in the weaving process, combining warp and weft yarns. The GB1 guide bar uses a chain weave with a weft yarn number of 1-0-1-2, while the GB2 guide bar uses a weft yarn number of 1-0-0-1. The guide bar is fully threaded without gaps. The warp yarns are 100D black polyester filament. Linear light guides 9 are embedded in the fabric along the weft direction, evenly distributed across the fabric width, with a density of 21 guides per centimeter and a spacing of 0.47 mm between adjacent linear light guides 9. During weaving, a tension control ring 3 and a combination of multiple pulleys continuously apply uniform and stable tension to the linear light guides 9, preventing the brittle plastic optical fiber from breaking under tension and ensuring uninterrupted continuous weaving.

[0028] After weaving, a preliminary inspection of the continuous fabric is carried out to confirm that the linear light guide 9 is free from breakage and deviation, and that the surface of the fabric is flat.

[0029] S2, Pretreatment Steps The woven fabric undergoes pretreatment, which includes two processes: heat setting and napping. The fabric is fed into a heat setting machine and held at 85℃ for 30 seconds to complete the heat setting, eliminating internal stress and improving overall flatness and dimensional stability. After setting, the light-emitting side of the fabric is napped, controlling the nap length to 0.3mm to optimize the fabric's hand feel and ensure uniform laser ablation depth. A cutting process can be added to cut the continuous fabric into fixed-size single pieces, depending on production needs.

[0030] S3, Laser Dotting Steps Reference Figure 4 A carbon dioxide laser 10 is used to ablate and mark predetermined discrete points on the linear light guide 9 on the fabric. The operating parameters of the carbon dioxide laser 10 are set as follows: operating speed 200mm / s, laser power 8.5W, and laser frequency 15kHz. The laser output energy is precisely controlled to remove only the surface layer of the fabric and the outer cladding of the linear light guide 9, while completely preserving the internal fiber core of the linear light guide 6. This forms a large number of independent light-emitting points 11 on the fabric surface, and the independent light-emitting points 11 are evenly distributed according to the preset star array pattern.

[0031] In this step, the laser beam is focused on the surface of the linear light guide 9 and acts directly on the fiber cladding. The ablation depth is automatically controlled by setting the ablation time. After ablation, the end face is inspected by a microscope. When the fiber core retention rate is greater than 80%, the fiber core is considered to be intact and undamaged.

[0032] S4, Post-processing steps Post-processing performs composite processing and clustering processing simultaneously: Composite processing: Reference Figure 5 and Figure 6 A foamed layer is selected as the light-shielding layer 12. The light-shielding layer 12 is bonded to the back of the fabric away from the light-emitting point using a hot melt adhesive bonding process. After the bonding is completed, a cold pressing process is performed to eliminate air bubbles and wrinkles between the light-shielding layer 12 and the fabric. Then, a flame-retardant functional layer is bonded to the side of the light-shielding layer 12 away from the fabric to obtain a multi-layer composite light-emitting substrate. In the fabric body, the linear light guide 9 is arranged along the weft direction as the light-emitting functional body, and the warp direction is made of black polyester filament. The woven structure forms an auxiliary light-shielding structure, which can block some light from leaking from the back and can help to shield the light. The foam layer on the back is the main light-shielding layer, which further blocks light from leaking from the non-light-emitting surface and improves the light-emitting efficiency of the front.

[0033] Clustering: Reference Figure 7 The exposed linear light guides 9 at the edge of the fabric are divided into several groups, with the number of optical fibers in each group determined according to the actual light source coupling requirements. An aluminum tube 13 and a black PVC sleeve 14 are used to converge the ends of each linear light guide bundle. After assembly, high-transparency optical adhesive is used for bonding and fixing. A coupling interface is provided at the end of the sleeve for direct connection to an LED light source, providing an incident light source for the linear light guides. This embodiment ultimately produces a flexible sheet-like luminescent fabric.

[0034] Example 2 Combination Figures 1 to 7 This embodiment provides a method for preparing luminescent fabric. The only difference from Embodiment 1 is the order of the weaving and laser dotting steps. The remaining weaving, pretreatment, laser parameters, and post-treatment processes are consistent with Embodiment 1. Specifically, it includes the following steps: S1, Laser dotting steps A single end-face light-emitting plastic optical fiber (linear light guide 9) is used. A carbon dioxide laser 10 is used to perform cladding ablation at predetermined discrete points on the optical fiber according to the parameters: speed 300mm / s, power 10.5W, frequency 25kHz. An independent light-emitting point 11 is pre-formed on the single optical fiber.

[0035] Reference Figure 4 During the ablation process, the laser beam is focused on the surface of the optical fiber, and the ablation depth is controlled by the ablation time. End face inspection confirms that the fiber core retention rate is greater than 80%.

[0036] S2, Weaving Steps The pre-marked linear light guides 9 are divided into two groups, with 9 fiber yarn tubes in each group connected in series. A total of 18 linear light guides 9 produce yarn in the same direction and perpendicularly. After the tension is initially adjusted by the tension control ring 3 and the yarn is gathered by the yarn collecting plate 4, the yarn is laid into the guide needle 8 after the tension is adjusted by pulley 1 5, pulley 2 6, and pulley 3 7. It is then interwoven with ordinary textile yarn to form a fabric with pre-made light-emitting points.

[0037] This embodiment also uses a Karl Mayer MSU warp knitting machine, model number E20. The GB1 guide bar yarn number is 1-0-1-2, employing a chain weave structure. The GB2 guide bar yarn number is 1-0-0-1, employing a weft-inserting structure. The yarn threading method is full threading. The warp yarns are 100D black polyester filaments, and the optical fibers are evenly distributed along the weft direction at a density of 21 fibers per centimeter. The yarn frame arrangement and threading path are as described above. Figures 1 to 3 .

[0038] S3, Pretreatment Steps Only a single pretreatment process of napping is used to control the nap length of the fabric surface to 1.0mm, omitting the cutting and heat setting processes.

[0039] S4, Post-processing steps The composite treatment uses non-woven fabric as the light-shielding layer 12, which is bonded to the back of the fabric using an adhesive film lamination process and then cold-pressed flat. The bundled treatment involves bundling the fiber ends together and then passing them through an aluminum tube 13 and a black PVC sleeve 14 with optical adhesive, as described above. Figure 7 The structure is fixed, and an LED light source is coupled to produce a finished luminescent fabric.

[0040] Test case Test Example 1 Production efficiency and production cost testing.

[0041] Traditional manual fiber optic insertion is used to prepare the starry sky roof fabric for bicycles, requiring 500-2000 fibers to be inserted manually, and the entire process takes 10 hours. In Embodiment 1 of this invention, automated production line production is carried out continuously, and the processing time for the same size fabric is only 60 minutes, increasing production efficiency by more than 10 times. Traditional processes have high costs for labor, auxiliary materials, and adhesives, while this invention does not require a large amount of labor and adhesives, and the overall manufacturing cost is less than 50% of that of traditional solutions.

[0042] Test Example 2 Weathering reliability aging test.

[0043] The finished product of Example 1 and the traditional hand-inserted fabric were subjected to cyclic aging tests at -40℃ and 85℃ simultaneously.

[0044] Traditional handmade fabrics: Under high temperature conditions, the adhesive used for bonding ages and delaminates quickly, failing to meet automotive-grade requirements; Product of Embodiment 1 of the present invention: The linear light guide is physically interwoven and fixed with the textile yarn without the participation of glue. After high and low temperature cycle testing, the optical fiber does not fall off or break, and there is no attenuation in size or light emission performance, which meets the automotive standard for vehicle interiors.

[0045] Further long-term aging verification of the product in Example 1 was carried out in accordance with the Volkswagen PV2005 climate cycle test standard. Brightness and color deviation were detected using a green light source. A complete test cycle was 12 hours. The test results are shown in Table 1.

[0046] Table 1. Results of brightness and color shift performance of PV2005 luminescent fabric during climate cycle aging test.

[0047] As shown in Table 1, the product prepared in Example 1 of the present invention showed no significant decrease in brightness and stable color deviation performance after 21 days of climate cycle aging, which can meet the long-term weather resistance requirements of automotive interiors.

[0048] Reference Figure 8 In the four stages of aging before aging and aging for 7 days, 14 days and 21 days, the brightness distribution of the luminescent fabric was uniform, with no local dark spots or abnormal bright spots, and the consistency of luminescence remained stable, further verifying the long-term weather resistance and optical stability of the product.

[0049] Test Example 3 Flexible adaptation performance test.

[0050] The two fabrics were respectively bonded to the curved surfaces of automotive door panels, irregularly shaped yacht interiors, and curved decorative substrates for home furnishings. Traditional hand-inserted fiber optic fabrics rely on rigid substrates to support optical fibers. The fabrics are stiff, and the optical fibers are easily broken after bending. They can only be used with thick flat substrates. The fabric of Embodiment 1 of this invention is lightweight and flexible, and can be cut, sewn and molded at will. It can closely fit various flat and irregular curved surfaces and is suitable for various scenarios such as car starry sky roofs, seat covers, yacht interiors, home curtains, and luminous decorative paintings.

[0051] Application examples Apply either the luminescent fabric from Example 1 or Example 2 to the interior of a vehicle or home decoration: Vehicle interiors: After cutting, it can be fitted to the car roof to create a starry sky ceiling, cover car door panels / seats, or cover the interior walls of yachts and decorate the countertops; the light-blocking layer on the back of the fabric can block light from leaking to the interior substrate, so that only the front emits light evenly; the ends of the optical fibers are bundled and connected to the vehicle's LED light source to achieve a dimmable starry sky lighting effect. Home decoration: It can be cut into the base material for curtains, wall decorations, and decorative paintings. After being overlaid with a touch-sensitive functional layer, it can realize touch dimming. Combined with flame-retardant and sound-insulating functional layers, it takes into account multiple needs such as decoration, safety and sound insulation.

[0052] The embodiments shown in this specification are only used to illustrate the technical solutions of the present invention and are intended to help those skilled in the art understand the principles and advantages of the present invention. They do not constitute a limitation on the scope of protection of the present invention. Although the present invention has been specifically described, those skilled in the art can still make any modifications, equivalent substitutions or other reasonable variations to the implementation methods without departing from the spirit and scope of the present invention. All equivalent technical solutions resulting therefrom should be considered within the scope of protection of this patent.

Claims

1. A method for preparing a luminescent fabric, characterized in that, This includes the weaving process and the laser dotting process; The weaving step is as follows: multiple linear light guides and ordinary textile yarns are interwoven according to a predetermined weaving process to form a fabric greige. The laser dotting step is as follows: using a laser to ablate the predetermined discrete points on the linear light guide, removing the cladding of the linear light guide and exposing the fiber core to form light-emitting points.

2. The method for preparing a luminescent fabric according to claim 1, characterized in that, The order of implementation of the weaving step and the laser dotting step is selected from one of the following two methods: Method 1: Perform the weaving step first, then perform the laser dotting step; Method 2: First, laser-mark a single linear light guide, then interweave the marked linear light guide with ordinary textile yarn to form a greige fabric.

3. The method for preparing a luminescent fabric according to claim 1, characterized in that, The weaving steps specifically include: Nine fiber optic yarn tubes are grouped together, and two groups are connected in series to produce yarn, resulting in a total of 18 linear light guides producing yarn in the same direction and perpendicularly. After the linear light guide passes through pulley one, pulley two, and pulley three in sequence to complete the tension adjustment, it is evenly laid into the yarn guide needle and then interwoven with ordinary textile yarn to form a shape.

4. The method for preparing a luminescent fabric according to claim 1, characterized in that, The laser marking step specifically includes: A carbon dioxide laser is used, and the parameters of the carbon dioxide laser include: speed 200-300mm / s, power 8.5-10.5W, and frequency 15-25kHz; the laser energy only removes the surface layer of the fabric and the cladding of the linear light guide, without damaging the core of the linear light guide.

5. The method for preparing a luminescent fabric according to claim 1, characterized in that, A pretreatment step is provided between the weaving step and the laser dotting step. The pretreatment includes at least one of cutting, heat setting, and napping. The preset temperature for heat setting is 85℃. The nap length of the fabric surface after napping is 0.3-1.0mm.

6. The method for preparing a luminescent fabric according to claim 1, characterized in that, After the laser dotting step, a post-processing step is also included, which includes beam-gathering and / or composite processing. The bundled processing is as follows: the multiple linear light guides of the luminescent fabric are bundled according to a predetermined rule, and the ends of the linear light guides are converged and fixed through aluminum tubes and black PVC sleeves to couple and connect with the light source. The composite process involves bonding the luminescent fabric with one or more functional composite layers using a hot melt adhesive composite process, an adhesive bonding process, or an adhesive film composite process, followed by cold pressing after the composite process is completed.

7. A luminescent fabric prepared by the method according to any one of claims 1-6, characterized in that, include: Ordinary textile yarn; as well as A linear light guide interwoven with the ordinary textile yarn; It also includes independent light-emitting points distributed on the surface of the light-emitting fabric.

8. The luminescent fabric according to claim 7, characterized in that, The linear light guide is any one of the following: end-face light-emitting plastic optical fiber, glass optical fiber, polymer light guide, and side-light-emitting optical fiber.

9. A luminescent fabric according to claim 7, characterized in that, The luminescent fabric has a light-shielding layer on the side opposite to the independent light-emitting point; the light-shielding layer is any one of sponge, non-woven fabric, or foam layer; The surface of the light-shielding layer is provided with a functional layer; the functional layer includes at least one of a flame-retardant layer, a sound-insulating layer, and a touch-sensing layer.

10. The application of a luminescent fabric prepared by any one of claims 1-6 in the interior decoration of vehicles or home furnishings.

Images