CN210605064U - Whole body luminous optical fiber and luminous product - Google Patents
Whole body luminous optical fiber and luminous product Download PDFInfo
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- CN210605064U CN210605064U CN201921460885.8U CN201921460885U CN210605064U CN 210605064 U CN210605064 U CN 210605064U CN 201921460885 U CN201921460885 U CN 201921460885U CN 210605064 U CN210605064 U CN 210605064U
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Abstract
The utility model discloses a whole body luminous fiber and luminous goods, whole body luminous fiber include the sandwich layer and set up the cortex in the sandwich layer periphery, and the material of sandwich layer is polyethylene terephthalate, polyamide or polymethyl methacrylate, and the material of cortex is polyethylene terephthalate, polyamide or polycarbonate, and the refracting index of sandwich layer is less than the refracting index of cortex, and the difference of the refracting index of cortex and sandwich layer accounts for the percentage content of the refracting index of cortex to be 2-8%; and a light-emitting article comprising the above all-body light-emitting optical fiber; the utility model discloses a luminous effect of whole body luminous optic fibre is better, and life is longer, and can adopt simpler technology to prepare, is favorable to practicing thrift the cost, is particularly useful for short distance optical transmission.
Description
Technical Field
The utility model belongs to light information material and textile material alternately field especially relate to the optic fibre material that the surface fabric for decoration relates, concretely relates to whole body luminous optic fibre and luminous goods, it can be applied to short distance optical transmission.
Background
The currently used whole body luminous optical fiber is usually a step polymer optical fiber, the refractive index of the core material is higher than that of the skin material, the core material mostly adopts transparent polymer or transparent organic matter, such as organic glass, meanwhile, the whole body luminous optical fiber is mostly used for illumination and decoration, the skin material generally adopts fluoroplastic, such as polytetrafluoroethylene, the preparation method of the whole body luminous optical fiber can basically only adopt a prefabricated part-stretching method, namely, the material is firstly prepared into an optical fiber with certain appearance knot by a certain method, then the prefabricated part is placed in a stretching device to be heated and stretched into a kilometer optical fiber, and then the optical fiber is subjected to mechanical damage, laser nicking, bending and other treatments, so that part of light transmitted by the optical fiber leaks from the side surface, thereby forming the whole body luminous optical fiber; however, the fluororesin has the defects of brittleness, poor elasticity, poor flexibility and other properties, easy breakage and insufficient comfort in the weaving and application processes in the textile field, and meanwhile, the cost of the fluororesin is high, so that the fluororesin is difficult to be applied to decorative fabrics in a large scale.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the prior art is not enough to overcome, a modified whole body luminous optic fibre is provided.
The utility model discloses still provide a luminous goods that adopts above-mentioned whole body luminous optic fibre simultaneously, it is applicable to in the short distance optical transmission's application.
For solving the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a whole body light-emitting fiber, includes the sandwich layer and sets up the cortex of sandwich layer periphery, the material of sandwich layer is polyethylene terephthalate, polyamide or polymethyl methacrylate, the material of cortex is polyethylene terephthalate, polyamide or polycarbonate, the refracting index of sandwich layer is less than the refracting index of cortex, just the refracting index of cortex with the difference of the refracting index of sandwich layer accounts for the percentage content of the refracting index of cortex is 2-8%.
The utility model discloses in, will according to conventional method the cross-section of the luminous optic fibre of entire body is coupled with the light source and can be realized giving out light, compares in prior art, the utility model discloses a luminous effect of the luminous optic fibre of entire body is better and the life-span is longer.
According to some preferred aspects of the present invention, the difference between the refractive index of the skin layer and the refractive index of the core layer accounts for 3 to 6% of the refractive index of the skin layer, and more preferably 3.2 to 5.8%.
According to some preferred aspects of the present invention, the diameter of the whole body light emitting fiber is 600-1000 μm.
According to some preferred and specific aspects of the present invention, the radius of the core layer is less than the thickness of the skin layer; not only saves raw materials, but also does not influence the luminous effect.
According to some preferred and specific aspects of the present invention, the core layer has a diameter of 200-; further preferably, the diameter of the core layer is 230-400 μm, and the thickness of the skin layer is 205-280 μm; in foretell diameter or thickness within range, the utility model discloses a better luminous effect can be realized promptly to whole body luminous optic fibre, has surperficial need adopt the condition that thick optic fibre just can guarantee enough brightness among the prior art.
The utility model discloses in, thickness subtracts behind the diameter of sandwich layer for the external diameter of cortex and divides 2 and obtain.
According to some particular aspects of the invention, the polyethylene terephthalate has a total light transmittance of 88% to 90% and a refractive index of 1.50 to 1.58.
According to some particular aspects of the invention, the polyamide has a total light transmittance of 90% to 92% and a refractive index of 1.49 to 1.55.
According to some particular aspects of the invention, the polycarbonate has a refractive index of 1.55 to 1.59.
According to some particular aspects of the invention, the polymethylmethacrylate has a total light transmittance of 92 to 94% and a refractive index of 1.48 to 1.50.
According to the present invention, the total light refers to visible light (near infrared to near ultraviolet), and the total light transmittance refers to the transmittance of all such light.
According to some specific aspects of the present invention, the polymethyl methacrylate has a melt index of 13 to 15g/10min measured at 230 ℃ under a load of 37.3N according to ISO-1133 standard.
According to some particular aspects of the present invention, the polycarbonate has a melt index of 19 to 23g/10min measured at 300 ℃ under a load of 37.3N according to ISO-1133.
According to some particular aspects of the invention, the polyamide has a melt index of 20 to 26g/10min measured at 230 ℃ under a load of 37.3N according to ISO-1133 standard.
According to some particular aspects of the invention, the polyethylene terephthalate has a melt index of 44 to 59g/10min measured at 280 ℃ under a load of 37.3N according to ISO 1133 standard.
In the present invention, the materials of the skin layer or the core layer with the specific refractive index and the melt index can be obtained commercially.
According to some aspects of the invention, the skin layer is coated on the outer surface of the core layer.
The utility model provides a further technical scheme: a light-emitting product comprises the whole body light-emitting optical fiber. In particular, the light emitting article includes, without limitation, a light emitting shoelace, a pet light emitting necklace, a light emitting fireplace, a light emitting cap, a light emitting necklace, a light emitting waistband, a light emitting sock, a light emitting handbag, and the like.
Due to the adoption of the technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model discloses a whole body luminous fiber adopts the skin/core material that has the refractive index difference, and the refractive index of control cortex is greater than the sandwich layer, has abandoned the refractive index relation that conventional sandwich layer is greater than the cortex among the prior art, and the innovative design that adopts totally opposite makes light almost only conduct at the cortex, and then obtains a whole body luminous fiber, and further controls both refractive index differences within a certain range, makes it especially be applicable to in the surface fabric for decoration and the short distance transmission fiber for decoration, has avoided simultaneously on the one hand that the mechanical destruction, laser nick, bending etc. that adopt in order to realize whole body luminous among the prior art are handled, has seriously reduced the life of optic fibre, on the other hand, the utility model discloses a whole body luminous fiber need not to adopt the stretching method to prepare, its mechanical properties is better, can directly adopt the fuse to extrude the back jet spinning silk and make, the production cost is reduced and the operation is simple.
Drawings
FIG. 1 is a schematic view of one of the structures of the whole body light-emitting optical fiber of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural diagram of a system for preparing a whole body light-emitting optical fiber according to the present invention;
wherein, 1, a skin layer; 2. a core layer; 11. a hopper; 12. a metering pump; 13. a screw; 14. a vacuum pump; 15. a spinning die head; 16. a water-cooling pool; 17. a pulling roll; 18. a winding device.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples; it is to be understood that these embodiments are provided to illustrate the basic principles, main features and advantages of the present invention, and the present invention is not limited by the scope of the following embodiments.
In the examples which follow, the melt index of polymethyl methacrylate is determined according to ISO-1133 at 230 ℃ under a load of 37.3N. The melt index of the polycarbonate is determined according to ISO-1133 at 300 ℃ under a load of 37.3N. The melt index of the polyamide is determined according to ISO-1133 at 230 ℃ under a load of 37.3N. The melt index of polyethylene terephthalate is determined according to ISO 1133 at 280 ℃ under a load of 37.3N. All raw materials are commercially available.
Example 1
The present example provides a whole-body light-emitting optical fiber, as shown in fig. 1, including a core layer (2) and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 300 μm, i.e. the radius of the core layer (2) is 150 μm, the outer diameter of the skin layer (1) is 800 μm, i.e. the thickness of the skin layer (1) is 250 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (1) is closely attached to and wrapped on the outer surface of the core layer (2) to form a skin-core structure.
The core layer (2) is made of polymethyl methacrylate (PMMA) with the refractive index of 1.49 and the melt index of 14g/10min, the skin layer (1) is made of polyethylene terephthalate (PET) with the total light transmittance of 90%, the refractive index of 1.57 and the melt index of 44g/10min, and in the embodiment, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 5.1% of the refractive index of the skin layer (1).
The whole body luminous optical fiber of the embodiment adopts the skin/core material with refractive index difference, controls the refractive index of the skin layer (1) to be larger than the core layer (2), abandons the refractive index relation that the conventional core layer is larger than the skin layer in the prior art, innovatively adopts the completely opposite design, leads the light to be almost only conducted in the skin layer (1), further obtains the whole body luminous optical fiber, and further controls the refractive index difference between the two in a certain range, so that the whole body luminous optical fiber is particularly suitable for decorative fabrics and decorative short-distance transmission fibers, and simultaneously avoids the mechanical damage, laser nicking, bending and other treatments adopted for realizing the whole body luminous in the prior art on one hand, thereby seriously reducing the service life of the optical fiber, and on the other hand, the whole body luminous optical fiber of the utility model is not required to be prepared by a prefabricated part-stretching method, has better mechanical performance, can be directly prepared by melt extrusion post-jet spinning, the production cost is reduced and the operation is simple.
Based on the above-mentioned effects, the whole body light-emitting optical fiber of the present example can be prepared by direct spinning using the following process:
(1) drying the PET slices in a vacuum drying oven at 120 ℃ for 8 hours, and drying the PMMA slices in a vacuum drying oven at 80 ℃ for 8 hours to respectively obtain dried PET and PMMA slices;
(2) respectively adding the dried PET and PMMA slices into two screws of a double-screw melt spinning machine, wherein the PET component sets the rear zone temperature of the screws to be 280 ℃, the front zone temperature to be 285 ℃, the box body temperature to be 285 ℃, the PMMA component sets the rear zone temperature of the screws to be 230 ℃, the front zone temperature to be 235 ℃, the box body temperature to be 235 ℃ and the spinneret plate temperature to be 280 ℃;
(3) spinning and forming through a spinning die head with a skin-core structure (a core-shell structure);
(4) cooling by a water cooling tank at 60 ℃, drawing by a drawing roller, wherein the drawing ratio is 1: and 2, collecting the mixture into a coil by a winding device to obtain the product.
Specifically, in the present invention, the preparation process and the preparation system adopted are shown in fig. 3, and the whole luminous optical fiber preparation system comprises two hoppers (11), two metering pumps (12), two screws (13) (i.e. two screws of a twin-screw extruder) respectively arranged at two sides, two vacuum pumps (14) respectively matched with the two screws for vacuum pumping (the vacuum pump 14 is used for pumping out air and water vapor emitted from the slices due to high temperature, thereby reducing bubbles in the material and improving the light transmission efficiency), and a spinning die head (15), a water cooling tank (16), a drawing roller (17) and a winding device (18) respectively communicated with the outlets of the two screws; before the material enters a spinning die head (15), two groups of devices are respectively connected with a hopper (11) and a metering pump (12), then screw rods (13) are connected, and a vacuum pump (14) is arranged on each screw rod (13); the raw materials are heated by a screw (13) after being sliced, enter a spinning die head (15) and are extruded, then extruded crude fibers are cooled by water in a water cooling tank (16), and are stretched by a plurality of pulling rollers (17) with different matching speeds, the optical fibers are thinned, the orientation degree of macromolecules in the fibers is improved, and finally the fibers are collected by a winding device (18).
The cross section of the obtained whole body luminous optical fiber is coupled with an LED light source according to a conventional method, the skin layer (1) can emit light in a whole body, and the whole body luminous optical fiber and common textile fiber are subjected to processes such as knitting or weaving, so that the luminous fabric can be obtained.
Example 2
The present example provides a whole-body light-emitting optical fiber, as shown in fig. 1, including a core layer (2) and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 400 μm, i.e. the radius of the core layer (2) is 200 μm, the outer diameter of the skin layer (1) is 880 μm, i.e. the thickness of the skin layer (1) is 240 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (2) is closely attached to and wrapped around the outer surface of the core layer (2) to form a skin-core structure.
The core layer (2) is made of polymethyl methacrylate (PMMA) with the refractive index of 1.49 and the melt index of 14g/10min, the skin layer (1) is made of Polycarbonate (PC) with the total light transmittance of 88%, the refractive index of 1.58 and the melt index of 22g/10min, and in the embodiment, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 5.7% of the refractive index of the skin layer (1).
The whole body luminous optical fiber of the embodiment adopts the skin/core material with refractive index difference, controls the refractive index of the skin layer (1) to be larger than the core layer (2), abandons the refractive index relation that the conventional core layer is larger than the skin layer in the prior art, innovatively adopts the completely opposite design, leads the light to be almost only conducted in the skin layer (1), further obtains the whole body luminous optical fiber, and further controls the refractive index difference between the two in a certain range, so that the whole body luminous optical fiber is particularly suitable for decorative fabrics and decorative short-distance transmission fibers, and simultaneously avoids the mechanical damage, laser nicking, bending and other treatments adopted for realizing the whole body luminous in the prior art on one hand, thereby seriously reducing the service life of the optical fiber, and on the other hand, the whole body luminous optical fiber of the utility model is not required to be prepared by a prefabricated part-stretching method, has better mechanical performance, can be directly prepared by melt extrusion post-jet spinning, the production cost is reduced and the operation is simple.
Based on the above-mentioned effects, the whole body light-emitting optical fiber of the present example can be prepared by direct spinning using the following process:
(1) drying the PC slices in a vacuum drying oven at 120 ℃ for 8 hours, and drying the PMMA slices in a vacuum drying oven at 80 ℃ for 8 hours to respectively obtain dried PC and PMMA slices;
(2) respectively adding the dried PC and PMMA slices into two screws of a double-screw melt spinning machine, wherein the PC component sets the temperature of a rear zone of the screw to be 280 ℃, the temperature of a front zone to be 285 ℃, the box body temperature to be 285 ℃, the PMMA component sets the temperature of the rear zone of the screw to be 230 ℃, the temperature of the front zone to be 235 ℃, the box body temperature to be 235 ℃ and the temperature of a spinneret plate to be 280 ℃;
(3) spinning and forming through a spinning die head with a skin-core structure (a core-shell structure);
(4) cooling by a water cooling tank at 50 ℃, drawing by a drawing roller, wherein the drawing ratio is 1:2, and collecting the mixture into a roll by a rolling device.
The cross section of the obtained whole body luminous optical fiber is coupled with an LED light source according to a conventional method, the skin layer (1) can emit light in a whole body, and the whole body luminous optical fiber and common textile fiber are subjected to processes such as knitting or weaving to obtain the luminous fabric.
Example 3
The present example provides a whole-body light emitting optical fiber, as shown in fig. 1, including a core layer (2) and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 270 μm, i.e. the radius of the core layer (2) is 135 μm, the outer diameter of the skin layer (1) is 730 μm, i.e. the thickness of the skin layer (1) is 230 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (1) is closely attached to and wrapped on the outer surface of the core layer (2) to form a skin-core structure.
The core layer (2) is made of polymethyl methacrylate (PMMA) with the refractive index of 1.49 and the melt index of 14g/10min, the skin layer (1) is made of Polyamide (PA) with the total light transmittance of 92%, the refractive index of 1.54 and the melt index of 22g/10min, and in the embodiment, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 3.3% of the refractive index of the skin layer (1).
The whole body luminous optical fiber of the embodiment adopts the skin/core material with refractive index difference, controls the refractive index of the skin layer (1) to be larger than the core layer (2), abandons the refractive index relation that the conventional core layer is larger than the skin layer in the prior art, innovatively adopts the completely opposite design, leads the light to be almost only conducted in the skin layer (1), further obtains the whole body luminous optical fiber, and further controls the refractive index difference between the two in a certain range, so that the whole body luminous optical fiber is particularly suitable for decorative fabrics and decorative short-distance transmission fibers, and simultaneously avoids the mechanical damage, laser nicking, bending and other treatments adopted for realizing the whole body luminous in the prior art on one hand, thereby seriously reducing the service life of the optical fiber, and on the other hand, the whole body luminous optical fiber of the utility model is not required to be prepared by a prefabricated part-stretching method, has better mechanical performance, can be directly prepared by melt extrusion post-jet spinning, the production cost is reduced and the operation is simple.
Based on the above-mentioned effects, the whole body light-emitting optical fiber of the present example can be prepared by direct spinning using the following process:
(1) drying the PA slices in a vacuum drying oven at 100 ℃ for 8 hours, and drying the PMMA slices in a vacuum drying oven at 80 ℃ for 8 hours to respectively obtain dried PA and PMMA slices;
(2) respectively adding the dried PA and PMMA slices into two screws of a double-screw melt spinning machine, wherein the PA component sets the rear zone temperature of the screws to 225 ℃, the front zone temperature to 230 ℃, the box body temperature to 230 ℃, the PMMA component sets the rear zone temperature of the screws to 230 ℃, the front zone temperature to 235 ℃, the box body temperature to 235 ℃ and the spinneret plate temperature to 235 ℃;
(3) spinning and forming through a spinning die head with a skin-core structure (a core-shell structure);
(4) cooling by a water cooling tank at 60 ℃, drawing by a drawing roller, wherein the drawing ratio is 1:2.5, and collecting the mixture into a roll by a rolling device.
The cross section of the obtained whole body luminous optical fiber is coupled with an LED light source according to a conventional method, the skin layer (1) can emit light in a whole body, and the whole body luminous optical fiber and common textile fiber are subjected to processes such as knitting or weaving to obtain the luminous fabric.
Example 4
This example provides a whole-body light-emitting optical fiber, as shown in fig. 1, including a core layer (2), and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 310 μm, i.e. the radius of the core layer (2) is 155 μm, the outer diameter of the skin layer (1) is 820 μm, i.e. the thickness of the skin layer (1) is 255 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (1) is closely attached to and wrapped on the outer surface of the core layer (2) to form a skin-core structure.
The core layer (2) is made of polyethylene terephthalate (PET, the total light transmittance is 90%, the refractive index is 1.51, and the melt index is 53g/10min), the skin layer (1) is made of polycarbonate (PC, the total light transmittance is 88%, the refractive index is 1.58, and the melt index is 22g/10min), and in the embodiment, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 4.4% of the refractive index of the skin layer (1).
The whole body luminous optical fiber of the embodiment adopts the skin/core material with refractive index difference, controls the refractive index of the skin layer (1) to be larger than the core layer (2), abandons the refractive index relation that the conventional core layer is larger than the skin layer in the prior art, innovatively adopts the completely opposite design, leads the light to be almost only conducted in the skin layer (1), further obtains the whole body luminous optical fiber, and further controls the refractive index difference between the two in a certain range, so that the whole body luminous optical fiber is particularly suitable for decorative fabrics and decorative short-distance transmission fibers, and simultaneously avoids the mechanical damage, laser nicking, bending and other treatments adopted for realizing the whole body luminous in the prior art on one hand, thereby seriously reducing the service life of the optical fiber, and on the other hand, the whole body luminous optical fiber of the utility model is not required to be prepared by a prefabricated part-stretching method, has better mechanical performance, can be directly prepared by melt extrusion post-jet spinning, the production cost is reduced and the operation is simple.
Based on the above-mentioned effects, the whole body light-emitting optical fiber of the present example can be prepared by direct spinning using the following process:
(1) drying the PET slices in a vacuum drying oven at 120 ℃ for 8 hours, and drying the PC slices in a vacuum drying oven at 120 ℃ for 8 hours to respectively obtain dried modified PET slices and dried PC slices;
(2) respectively adding the dried modified PET and PC slices into two screws of a double-screw melt spinning machine, wherein the PET component sets the temperature of the rear zone of the screw to 280 ℃, the temperature of the front zone to 285 ℃, the box body temperature to 285 ℃, the PC component sets the temperature of the rear zone of the screw to 280 ℃, the temperature of the front zone to 285 ℃, the box body temperature to 288 ℃, and the spinneret plate temperature to 290 ℃;
(3) spinning and forming through a spinning die head with a skin-core structure.
(4) Cooling in a water cooling tank at 60 ℃, drawing by a drawing roller with the drawing ratio of 1:2.5, and collecting into coils by a winding device.
The cross section of the obtained whole body luminous optical fiber is coupled with an LED light source according to a conventional method, the skin layer (1) can emit light in a whole body, and the whole body luminous optical fiber and common textile fiber are subjected to processes such as knitting or weaving, so that the luminous fabric can be obtained.
Example 5
This example provides a whole-body light-emitting optical fiber, as shown in fig. 1, including a core layer (2), and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 230 μm, i.e. the radius of the core layer (2) is 115 μm, the outer diameter of the skin layer (1) is 640 μm, i.e. the thickness of the skin layer (1) is 205 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (1) is closely attached to and wrapped on the outer surface of the core layer (2) to form a skin-core structure.
The core layer (2) is made of polyethylene terephthalate (PET, the total light transmittance is 90%, the refractive index is 1.51, and the melt index is 53g/10min), the skin layer (1) is made of polyethylene terephthalate (PET, the total light transmittance is 90%, the refractive index is 1.57, and the melt index is 44g/10min), and in the embodiment, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 3.8% of the refractive index of the skin layer (1).
Example 6
The present example provides a whole-body light-emitting optical fiber, as shown in fig. 1, including a core layer (2) and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 260 μm, i.e. the radius of the core layer (2) is 130 μm, the outer diameter of the skin layer (1) is 690 μm, i.e. the thickness of the skin layer (1) is 215 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (1) is closely attached to and wrapped on the outer surface of the core layer (2) to form a skin-core structure.
The material of the core layer (2) is polyamide (PA, the refractive index is 1.50, and the melt index is 22g/10min), the material of the skin layer (1) is polyethylene terephthalate (PET, the total light transmittance is 90%, the refractive index is 1.57, and the melt index is 44g/10min), and in this example, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 4.5% of the refractive index of the skin layer (1).
Example 7
The present example provides a whole-body light-emitting optical fiber, as shown in fig. 1, including a core layer (2) and a skin layer (1) covering the outer surface of the core layer (2), wherein the diameter of the core layer (2) is 330 μm, i.e. the radius of the core layer (2) is 165 μm, the outer diameter of the skin layer (1) is 880 μm, i.e. the thickness of the skin layer (1) is 275 μm; as shown in fig. 2, which is a schematic cross-sectional view of fig. 1, the skin layer (1) is closely attached to and wrapped on the outer surface of the core layer (2) to form a skin-core structure.
Wherein the material of the core layer (2) is polyamide (PA, the refractive index is 1.50, and the melt index is 22g/10min), the material of the skin layer (1) is polycarbonate (PC, the total light transmittance is 88%, the refractive index is 1.58, and the melt index is 22g/10min), and in the example, the difference between the refractive index of the skin layer (1) and the refractive index of the core layer (2) accounts for 5.1% of the refractive index of the skin layer (1).
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a whole body luminescence fiber, includes the core layer and sets up the cortex in the core layer periphery, its characterized in that, the material of core layer is polyethylene terephthalate, polyamide or polymethyl methacrylate, the material of cortex is polyethylene terephthalate, polyamide or polycarbonate, the refracting index of core layer is less than the refracting index of cortex, just the refracting index of cortex with the difference of the refracting index of core layer accounts for the percentage content of the refracting index of cortex is 2-8%.
2. The all-body light-emitting optical fiber according to claim 1, wherein the difference between the refractive index of the skin layer and the refractive index of the core layer is 3 to 6% of the refractive index of the skin layer.
3. The all-body luminescent fiber as claimed in claim 1, wherein the diameter of the all-body luminescent fiber is 600-1000 μm.
4. The all-body luminescent fiber according to claim 1 or 3, wherein the radius of the core layer is smaller than the thickness of the skin layer.
5. The all-body luminescent fiber as claimed in claim 4, wherein the diameter of the core layer is 200-450 μm, and the thickness of the skin layer is 200-300 μm.
6. The all-body luminescent optical fiber according to claim 1, wherein the polyethylene terephthalate has a total light transmittance of 88-90% and a refractive index of 1.50-1.58; and/or the total light transmittance of the polyamide is 90-92% and the refractive index is 1.49-1.55.
7. The all-body luminescent fiber according to claim 1, wherein the polycarbonate has a refractive index of 1.55 to 1.59; and/or the total light transmittance of the polymethyl methacrylate is 92-94%, and the refractive index is 1.48-1.50.
8. The all-body luminescent fiber according to claim 1, wherein the polymethyl methacrylate has a melt index of 13 to 15g/10min measured at 230 ℃ under a load of 37.3N in accordance with ISO-1133 standard, the polycarbonate has a melt index of 19 to 23g/10min measured at 300 ℃ under a load of 37.3N in accordance with ISO-1133 standard, the polyamide has a melt index of 20 to 26g/10min measured at 230 ℃ under a load of 37.3N in accordance with ISO-1133 standard, and the polyethylene terephthalate has a melt index of 44 to 59g/10min measured at 280 ℃ under a load of 37.3N in accordance with ISO-1133 standard.
9. The all-body luminescent fiber according to claim 1, wherein the skin layer is coated on the outer surface of the core layer.
10. A light-emitting article comprising the through-body light-emitting optical fiber according to any one of claims 1 to 9.
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| CN201921460885.8U CN210605064U (en) | 2019-09-04 | 2019-09-04 | Whole body luminous optical fiber and luminous product |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676532A (en) * | 2020-06-10 | 2020-09-18 | 华中科技大学 | Luminescent fiber, preparation method and application thereof, and luminescent mask |
| WO2021249506A1 (en) * | 2020-06-10 | 2021-12-16 | 华中科技大学 | Luminous fiber and preparation method therefor and application thereof, and luminous mask |
| CN111676532B (en) * | 2020-06-10 | 2022-03-01 | 华中科技大学 | Luminescent fiber, preparation method and application thereof, and luminescent mask |
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