CN115813084A - TPU coated optical fiber vamp product, manufacturing process thereof and shoe thereof - Google Patents

Abstract

The invention discloses a TPU coated optical fiber vamp product, a manufacturing process thereof and a shoe thereof. According to the invention, the optical fiber coated with TPU is embroidered and woven on the vamp, the side face luminescence of the optical fiber is utilized, so that the vamp can emit light on the basis of displaying different patterns, the bare optical fiber is fragile and easy to fold due to the material characteristics, the outer layer of the bare optical fiber is generally coated and treated in the textile field, the optical fiber is protected by winding and coating the transparent fish wire in the prior art, the optical fiber is easily twisted off by the force generated by winding, the outer layer is scattered due to the untight winding of the transparent fish wire, the refracted light rays are different in depth, and the optical fiber is coated with the thermoplastic polyurethane elastomer layer formed integrally by adopting the process, so that the optical fiber is protected from being damaged and the uniform light rays are emitted.

Description

TPU coated optical fiber vamp product, manufacturing process thereof and shoe thereof

Technical Field

The invention relates to the technical field of shoe products, in particular to a TPU coated optical fiber vamp product, a manufacturing process thereof and a shoe thereof.

Background

With the development of the times, people pursue the diversification of footwear products more and more, manufacturers continuously develop new products to meet the requirements of consumers, for example, in order to meet the requirements of the consumers for running at night, a luminous vamp is developed in the industry, after a light source is connected to a port, part of light is exposed from a coating layer while being normally emitted, so that the optical fiber has the characteristic of side surface luminescence, and the luminous optical fiber is fixed on the vamp through an electric embroidery mode on the basis of the conventional vamp, so that the vamp can be luminous and has different patterns.

In the practical application process, optical fiber is fragile and easy to break, complicated and large-area patterns cannot be displayed on a vamp, in order to improve the folding endurance of the optical fiber, the prior art selects a layer of transparent filament wound and coated outside the optical fiber for protecting the optical fiber, and realizes the functions of light emission and folding endurance of the optical fiber, but tests for many times show that the optical fiber wound and coated with the transparent filament is easy to twist off an inner core of the optical fiber due to the fact that the transparent filament is wound towards the same direction, the produced optical fiber cannot emit light, and the breakpoint generated due to twisting is difficult to find, even if the produced optical fiber can emit light, the light emitted from the inner core is also different in depth due to the fact that the surface of the optical fiber is uneven, and large-scale production is difficult to realize.

Disclosure of Invention

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

The invention aims to overcome the defects and provides a TPU coated optical fiber vamp product, a manufacturing process thereof and shoes thereof.

In order to achieve the purpose, the technical solution of the invention is as follows: a TPU coated optical fiber vamp product comprises a vamp, a limiting filament and a coated optical fiber, wherein the coated optical fiber is woven on the vamp through the limiting filament by electric embroidery, and the coated optical fiber is an optical fiber coated with a thermoplastic polyurethane elastomer. Compared with the conventional optical fiber, the optical fiber coated with the thermoplastic polyurethane elastomer has stronger firmness and higher elasticity, avoids the problem of optical fiber breakage caused by a winding and wrapping mode, reduces the consumption rate of an outer-layer coating material, improves the development efficiency, and ensures that the coated optical fiber is more firm on a vamp by fixing the limiting wire in an electric embroidery mode without occupying the space in a shoe, thereby improving the comfort level on the basis of attractiveness.

In some embodiments, the optical fiber further comprises an external electrical device, and any end of the coated optical fiber is connected with the external electrical device. The external electric appliance can provide a light source for the optical fiber, the battery in the external electric appliance provides energy for the continuous light emitting of the optical fiber, and the external electric appliance and the battery are matched to enable the optical fiber to emit continuous and stable light.

In some embodiments, the coated optical fibers are distributed along the curved and spiral arrangement of the shoe upper, and the turning positions of the coated optical fibers are arc-shaped curves. Under the protection of the outer thermoplastic polyurethane elastomer, although the elasticity and the folding resistance of the optical fiber are improved, an overlarge twisting angle still needs to be avoided, so that the coated optical fiber is bent, arranged and distributed, and the turning part is bent in an arc shape, so that the optical fiber in the optical fiber is prevented from being broken.

In some embodiments, the limiting filament is dacron, the external electrical appliance is an optical fiber light source device, the optical fiber light source device comprises a control circuit board, a rechargeable battery, an LED lamp bead and a control key handle, the control circuit board is electrically connected with the rechargeable battery, and the LED lamp bead and the control key are electrically connected with the control circuit board through wires. The terylene has good crease resistance and shape retention, higher strength and elastic recovery capability, and is suitable for fixing the coated optical fiber in electric embroidery; the limiting filament can also be one or combination of common textile yarns such as chinlon, spandex and the like or common textile yarns; the motion of the LED light bead can be computer processed to provide special effects such as timed changes in light or momentary light like stroboscopic flashes.

In some embodiments, the coated optical fiber comprises an inner core, a spacer layer and a skin layer, wherein the spacer layer is coated outside the inner core, the inner core and the spacer layer form the optical fiber, the skin layer is coated outside the optical fiber, and the skin layer is made of a mixed thermoplastic polyurethane elastomer. This inner core material is polymethyl methacrylate, and this interlayer material is the plastics of fluororesin, and conventional optic fibre is constituteed with the interlayer to this inner core, through the cortex of cladding one deck integrated into one piece outside conventional optic fibre, promotes the resistant degree of rolling over and elasticity of optic fibre, simultaneously because mixed thermoplastic polyurethane elastomer's protection, the oil resistance and the waterproof nature of this vamp rise, are favorable to keeping the vamp clean and tidy.

In some embodiments, the upper is a warp knit, weft knit, woven, or knitted fabric. The process of fixing the coated optical fiber on the vamp by the limiting wire has low requirement on the material of the vamp, and can be suitable for the material of textile cloth in common industrial production.

A shoe made of a TPU coated optical fiber vamp product comprises a TPU coated optical fiber vamp body and a sole body, wherein a cavity is formed in the sole body, an external electric appliance is arranged in the cavity and is an optical fiber light source device, a control circuit board can control LED lamp beads to emit monochromatic light or multicolor light, the rhythm of light variation can be realized when the multicolor light is emitted, and the effects of gradual change, flicker and the like are realized. On the finished product shoes, will control the button handle setting in the heel position usually, also set up the mouth that charges on controlling the button handle often, the mouth that charges can be micro-usb interface, lightning interface, type-c interface, when convenient follow-up use, directly charges light emitting component through the mouth that charges.

The control circuit board can also be provided with a Bluetooth control chip. Rechargeable battery, bluetooth control chip set up in the cavity in the sole, can avoid occupying original space in the shoes, and the mouth that charges can also set up at this sole, does not set up on the vamp. The control key handle sets up to the wireless connection mode, and the user can save the wire conduction through bluetooth control chip wireless connection on wireless remote controller and the control circuit board, can set up the luminous control key handle of control light-emitting component in the different positions of shoes, and does not receive the restriction of wire length.

A manufacturing process of a TPU coated optical fiber vamp product comprises the following steps:

s1, manufacturing a coated optical fiber: winding the optical fiber on a creel, placing the mixed thermoplastic polyurethane elastomer material in extrusion equipment, leading the optical fiber out of the creel and passing through the extrusion equipment, and coating the mixed thermoplastic polyurethane elastomer on the surface of the optical fiber by the extrusion equipment so as to form a coated optical fiber;

s2, reading samples: importing a design layout program drawn by computer embroidery software on a computer embroidery machine, and reading a sample by the computer embroidery machine;

s3, threading: the method comprises the following steps of (1) threading prepared embroidery threads and limiting threads on a computer embroidery machine according to patterns, wherein the embroidery threads are coated optical fibers coated with a thermoplastic polyurethane elastomer;

s4, fixing: laying a vamp in a movable tabouret of the computerized embroidery machine, and fixing the vamp on the tabouret;

s5, embroidering: and starting the computerized embroidery machine, and performing electric embroidery on the surface of the vamp by using the coated optical fiber and the limiting filament according to the whole shape or part shape of the vamp structure according to the imported design layout to form the woven product.

Through adopting the electric embroidery technology, fix the cladding optic fibre on this vamp with spacing silk, the electric embroidery has accurate, high-efficient, simple and easy operation's advantage, when can effectively making cladding optic fibre show different decorative patterns, fixes its accuracy on this vamp, reduces the weaving time of shortening greatly, has simplified production procedure, has improved industrial production efficiency.

In some embodiments, in step S4, the underside of the upper may be provided with a base layer, which may be a water-soluble base that is removed by a water-soluble treatment. The water-soluble substrate is arranged on the bottom surface of the conventional vamp, so that the vamp is more stable during embroidering, and the patterns are not easy to deviate.

In some embodiments, in step S1, the specific manufacturing process of the coated optical fiber is as follows:

s11, preparing materials: the following raw materials are selected: thermoplastic polyurethane elastomer material, titanium dioxide, magnesium silicate mineral talc group talcum powder, dispersing agent, polyacrylate resin, antioxidant, heat stabilizer and light stabilizer;

s12, modification: putting the preparation raw materials selected in the step S11 into a double-screw extruder, heating, melting and extruding the raw materials by the extruder to prepare the modified thermoplastic polyurethane elastomer, wherein the heating temperature of the extruder is 200-220 ℃;

s13, cooling and pelletizing: putting the modified thermoplastic polyurethane elastomer into a cold water tank, carrying out water cooling, and carrying out particle cutting to obtain modified thermoplastic polyurethane elastomer slices, wherein the water temperature of water in the cold water tank is 5-15 ℃;

s14, drying: putting the thermoplastic polyurethane elastomer material in the S11 and the modified thermoplastic polyurethane elastomer slices in the S13 into a drying cylinder for drying, wherein the drying temperature is 90-100 ℃, and the drying time is 2-3 hours;

s15, coating: putting the dried thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer slices into a double-screw extruder, heating, melting and extruding, pulling the optical fiber to an extruder die, heating, melting and mixing the thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer, and then coating the surface of the optical fiber to obtain a coated optical fiber, wherein the extrusion temperature of the extruder is 220-240 ℃, the rotating speed of a motor is 10-20rpm, and the melt pressure is 5-7MPA;

s16, cooling: putting the coated optical fiber prepared in the step S15 into a cold water tank for water cooling, wherein the water temperature in the cold water tank is 5-15 ℃;

s17, rolling: and winding the cooled coated optical fiber through a winding device to obtain the wound coated optical fiber yarn.

The thermoplastic polyurethane elastomer is coated outside the conventional plastic optical fiber bare fiber, so that the yarn strength is enhanced, the requirements on the yarn strength in various textile methods and knitting processes can be met, the knittability of the plastic optical fiber bare fiber is greatly improved, the application prospect of the optical fiber material in the textile field is expanded, the breaking strength of the optical fiber bare fiber is improved, the knittability is improved, and the plastic optical fiber bare fiber has comfortable and soft hand feeling and good wrinkle resistance, shape retention and wear resistance.

By adopting the technical scheme, the invention has the beneficial effects that:

the coated optical fiber adopted by the invention is coated with the one-piece thermoplastic polyurethane elastomer layer on the plasticized optical fiber, so that the coated optical fiber is used for protecting the optical fiber, the folding endurance and the elasticity of the optical fiber are improved, the coated optical fiber can be applied to vamp weaving, various patterns are shown, compared with a winding coating mode in the prior art, the one-piece skin layer can effectively prevent the internal optical fiber from being twisted off due to the force generated by winding, the coated optical fiber has better integrity and is not easy to loosen, the refracted light rays are more uniform, the oil resistance and the water resistance of the coated optical fiber are improved due to the characteristics of the coated material, the integral neatness and durability of the vamp are improved, the cost and the loss rate are reduced, and the coated optical fiber is suitable for industrial production.

According to the invention, by utilizing the characteristic of light emitting at the side edge of the optical fiber, on the basis that the coated optical fiber shows various patterns, the luminous device is added, so that the patterns can emit light, and the luminous device is hidden in the sole to ensure the space in the shoe, so that a user can control the vamp to show different colors and flashing frequencies by operating the wireless remote controller.

The invention adopts the electric embroidery process, fixes the coated optical fiber on the vamp by the limiting wire, has the advantages of accuracy, high efficiency and simple operation, can effectively lead the coated optical fiber to display different patterns, and simultaneously fixes the coated optical fiber on the vamp accurately, greatly shortens the knitting time, simplifies the production procedure and improves the industrial production efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Clearly, such objects and other objects of the present invention will become more apparent from the detailed description of the preferred embodiments hereinafter set forth in the various drawings and drawings.

These and other objects, features and advantages of the present invention will become more apparent from the following detailed description of one or more preferred embodiments of the invention, as illustrated in the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings, like parts are designated with like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only one or several embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to such drawings without creative efforts.

FIG. 1 is a schematic representation of the overall structure of a TPU coated fiber optic shoe upper in some embodiments of the present invention;

FIG. 2 is a schematic diagram of a coated optical fiber structure according to some embodiments of the present invention;

FIG. 3 is a schematic representation of the overall structure of a shoe made from a TPU coated fiber upper article in some embodiments of the present invention;

FIG. 4 is a schematic view of the overall structure of a sole according to some embodiments of the invention;

FIG. 5 is a schematic flow chart of a process for making a TPU coated upper in some embodiments of the present invention;

FIG. 6 is a flow chart illustrating the fabrication of a coated optical fiber according to some embodiments of the present invention.

Description of the main reference numerals: 1. an upper; 2. a limiting wire;

3. coating the optical fiber;

31. an inner core; 32. an interlayer; 33. a skin layer;

4. a fiber optic light source; 5. a rechargeable battery; 6. a Bluetooth control chip; 7. a sole; 8. a cavity.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1, fig. 1 is a schematic view of the overall structure of a TPU-coated optical fiber shoe upper in some embodiments of the present invention.

According to some embodiments of the invention, the invention provides a TPU-coated optical fiber vamp product, which comprises a vamp 1, a limiting filament 2 and a coated optical fiber 3, wherein the coated optical fiber 3 is woven on the vamp 1 through the limiting filament 2 by electric embroidery, the coated optical fiber 3 is an optical fiber coated with a thermoplastic polyurethane elastomer, and the diameter of a bare optical fiber can be 0.25mm-0.75mm, preferably 0.5mm; the limiting filament 2 is terylene; the vamp 1 is a warp knitted fabric, a weft knitted fabric, a woven fabric or a knitted fabric.

Compared with the conventional optical fiber, the optical fiber coated with the thermoplastic polyurethane elastomer has stronger firmness and higher elasticity, avoids the problem of optical fiber breakage caused by a winding and wrapping mode, reduces the consumption rate of an outer-layer coating material, improves the development efficiency, and ensures that the coated optical fiber 3 is more firm on the vamp 1 by fixing the coated optical fiber by the limiting wire 2 in an electric embroidery mode without occupying the space in a shoe, thereby improving the comfort level on the basis of beauty; the terylene has good crease resistance and shape retention, higher strength and elastic recovery capability, and is suitable for fixing the coated optical fiber 3 in electric embroidery; the limiting filament 2 can also be one or combination of common textile yarns such as chinlon, spandex and the like or common textile yarns; the process of fixing the coated optical fiber 3 on the vamp 1 by the electric embroidery through the limiting wire 2 has small requirements on the material of the vamp 1, and can be suitable for the material of textile cloth in common industrial production, and it should be understood that the vamp 1 comprises but is not limited to the material.

Referring to fig. 2, fig. 2 is a schematic diagram of a coated optical fiber structure in some embodiments of the invention.

According to some embodiments of the present invention, optionally, the coated optical fiber 3 includes an inner core 31, a spacer layer 32 and a sheath layer 33, the inner core 31 is coated with the spacer layer 32, the inner core 31 and the spacer layer 32 constitute an optical fiber, the optical fiber is coated with the sheath layer 33, and the sheath layer 33 is made of a hybrid thermoplastic polyurethane elastomer. This inner core 31 material is polymethyl methacrylate, and this interlayer 32 material is the plastics of fluororesin, and conventional optic fibre has been constituteed with interlayer 32 to this inner core 31, through the cortex 33 of cladding one deck integrated into one piece outside conventional optic fibre, is favorable to promoting the resistant degree of folding and the elasticity of optic fibre, simultaneously because the protection of mixing thermoplastic polyurethane elastomer, the oil resistance and the waterproof nature of this vamp 1 rise, are favorable to keeping vamp 1 clean and tidy.

3-4, FIG. 3 is a schematic view of the overall structure of a shoe made from a TPU coated fiber upper article according to some embodiments of the present invention; FIG. 4 is a schematic view of the overall structure of the sole according to some embodiments of the invention.

According to some embodiments of the invention, optionally, the TPU-coated optical fiber upper article further comprises an external electrical appliance, and either end of the coated optical fiber 3 is connected with the external electrical appliance; the coated optical fibers 3 are distributed along the bending and circling arrangement of the vamp 1, and the turning position of the coated optical fibers 3 is in arc bending; the external electrical appliance is an optical fiber light source device 4, the optical fiber light source device comprises a control circuit board, a rechargeable battery 5, an LED lamp bead and a control key handle, the control circuit board is electrically connected with the rechargeable battery, and the LED lamp bead and the control key are electrically connected with the control circuit board through wires.

The external electric appliance provides a light source for the optical fiber, the battery in the external electric appliance provides energy for the continuous light emission of the optical fiber, and the external electric appliance and the battery are matched to enable the optical fiber to emit continuous and stable light; under the protection of the outer thermoplastic polyurethane elastomer, although the elasticity and the folding resistance of the optical fiber are improved, the optical fiber still needs to avoid an overlarge twisting angle, so that the coated optical fiber 3 is bent, arranged and distributed, and the turning part is bent in an arc shape to prevent the optical fiber inside from being broken; the motion of the LED light bead can be computer processed to provide special effects such as timed changes in light or momentary light like stroboscopic flashes.

According to some embodiments of the invention, the invention further provides a shoe made of the TPU-coated optical fiber vamp product, which comprises a TPU-coated optical fiber vamp 1 and a sole 7, wherein a cavity 8 is arranged in the sole 7, the external electrical appliance is arranged in the cavity 8, the external electrical appliance is an optical fiber light source device 4, the optical fiber light source device 4 comprises a control circuit board, a rechargeable battery 5, an LED lamp bead and a control button handle, the control circuit board is electrically connected with the rechargeable battery 5, and the LED lamp bead and the control button are electrically connected with the control circuit board through conducting wires. The control circuit board can control the LED lamp beads to emit monochromatic light or multicolor light, and when the LED lamp beads emit multicolor light, the rhythm of light changing can be achieved, and the effects of gradual change, flicker and the like are achieved. On the finished product shoes, will control the button handle setting in the heel position usually, also set up the mouth that charges on controlling the button handle often, the mouth that charges can be micro-usb interface, lightning interface, type-c interface, when convenient follow-up use, directly charges light emitting component through the mouth that charges.

The control circuit board can also be provided with a Bluetooth control chip 6. Rechargeable battery 5, bluetooth control chip 6 set up in the cavity in the sole, can avoid occupying original space in the shoes, and the mouth that charges can also set up at this sole, does not set up on the vamp. The control key handle sets up to wireless connection mode, and the user can save the wire conduction through bluetooth control chip 6 wireless connection on wireless remote controller and the control circuit board, can set up the luminous control key handle of control light-emitting component in the different positions of shoes, and does not receive the restriction of wire length.

Referring to fig. 5, fig. 5 is a schematic flow chart of a process for manufacturing a TPU coated optical fiber shoe upper according to some embodiments of the present invention.

According to some embodiments of the invention, optionally, a process for manufacturing a TPU-coated optical fiber upper article comprises the following steps:

s1, manufacturing a coated optical fiber: winding the optical fiber on a creel, placing the mixed thermoplastic polyurethane elastomer material in an extrusion device, leading out the optical fiber by the creel and penetrating the optical fiber through the extrusion device, and coating the mixed thermoplastic polyurethane elastomer on the surface of the optical fiber by the extrusion device so as to form a coated optical fiber 3;

s2, reading samples: importing a design layout program drawn by computer embroidery software on a computer embroidery machine, and reading a sample by the computer embroidery machine;

s3, threading: the method comprises the following steps of (1) threading prepared embroidery threads and limiting threads 2 on a computer embroidery machine according to patterns, wherein the embroidery threads are coated optical fibers 3 coated with thermoplastic polyurethane elastomers;

s4, fixing: paving a vamp 1 in a movable tabouret of a computerized embroidery machine, and fixing the vamp 1 on the tabouret;

s5, embroidering: and starting the computerized embroidery machine, and performing electric embroidery on the surface of the vamp 1 by using the coated optical fiber 3 and the limiting filament 2 according to the whole shape or partial shape of the structure of the vamp 1 according to the imported design layout to form a woven product.

By adopting the electric embroidery process, the coated optical fiber 3 is fixed on the vamp 1 by the limiting wires 2, the electric embroidery has the advantages of accuracy, high efficiency and simple operation, the coated optical fiber 3 can be accurately fixed on the vamp 1 while different patterns can be effectively displayed, the knitting time is greatly shortened, the production procedure is simplified, and the industrial production efficiency is improved.

According to some embodiments of the present invention, in step S4, optionally, the bottom surface of upper 1 may be provided with a base layer, which may be a water-soluble base, and the water-soluble base is removed through a water-soluble treatment. The water-soluble substrate is arranged on the bottom surface of the conventional vamp 1, so that the vamp 1 is more stable during embroidering, and patterns are not easy to deviate.

Referring to fig. 6, fig. 6 is a schematic flow chart illustrating a process for fabricating a coated optical fiber according to some embodiments of the present invention.

According to some embodiments of the present invention, optionally, in step S1, a specific manufacturing process of the coated optical fiber 3 is as follows:

s11, preparing materials: the following raw materials are selected: thermoplastic polyurethane elastomer material, titanium dioxide, magnesium silicate mineral talc group talcum powder, dispersing agent, polyacrylate resin, antioxidant, heat stabilizer and light stabilizer;

s12, modification: putting the preparation raw materials selected in the step S11 into a double-screw extruder, heating, melting and extruding the raw materials by the extruder to prepare the modified thermoplastic polyurethane elastomer, wherein the heating temperature of the extruder is 200-220 ℃;

s13, cooling and pelletizing: putting the modified thermoplastic polyurethane elastomer into a cold water tank for water cooling, and dicing to obtain modified thermoplastic polyurethane elastomer slices, wherein the water temperature of water in the cold water tank is 5-15 ℃;

s14, drying: putting the thermoplastic polyurethane elastomer material in the S11 and the modified thermoplastic polyurethane elastomer slices in the S13 into a drying cylinder for drying, wherein the drying temperature is 90-100 ℃, and the drying time is 2-3 hours;

s15, coating: putting the dried thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer slices into a double-screw extruder, heating, melting and extruding, pulling the optical fiber to an extruder die, heating, melting and mixing the thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer, and then coating the surface of the optical fiber to obtain a coated optical fiber 3, wherein the extrusion temperature of the extruder is 220-240 ℃, the rotating speed of a motor is 10-20rpm, and the melt pressure is 5-7MPA;

s16, cooling: putting the coated optical fiber 3 prepared in the step S15 into a cold water tank for water cooling, wherein the water temperature in the cold water tank is 5-15 ℃;

s17, rolling: and winding the cooled coated optical fiber 3 by using a winding device to obtain a tube of coated optical fiber 3 yarn.

The thermoplastic polyurethane elastomer is coated outside the conventional plastic optical fiber bare fiber, so that the yarn strength is enhanced, the requirements on the yarn strength in various textile methods and knitting processes can be met, the knittability of the plastic optical fiber bare fiber is greatly improved, the application prospect of the optical fiber material in the textile field is expanded, the breaking strength of the optical fiber bare fiber is improved, the knittability is improved, and the plastic optical fiber bare fiber has comfortable and soft hand feeling and good wrinkle resistance, shape retention and wear resistance.

Example 1

Referring to fig. 1-6, fig. 1 is a schematic diagram of the overall structure of a TPU coated fiber optic shoe upper in some embodiments of the present invention; FIG. 2 is a schematic diagram of a coated optical fiber structure according to some embodiments of the present invention; FIG. 3 is a schematic representation of the overall structure of a shoe made from a TPU coated fiber upper article in some embodiments of the present invention; FIG. 4 is a schematic view of the overall structure of a sole according to some embodiments of the invention; FIG. 5 is a schematic flow chart of a process for making a TPU coated upper in some embodiments of the present invention; FIG. 6 is a flow chart illustrating the fabrication of a coated optical fiber according to some embodiments of the present invention.

The embodiment provides a TPU coated optical fiber electric embroidery vamp product, which comprises a vamp 1, a limiting filament 2, a coated optical fiber 3 and an external electrical appliance, wherein the coated optical fiber 3 is woven on the vamp 1 through the limiting filament 2 in an electric embroidery mode, and the external electrical appliance continuously provides a light source for the coated optical fiber 3 to emit light; the coated optical fibers 3 are distributed along the bending and circling arrangement of the vamp 1, and the turning position of the coated optical fibers 3 is arc-shaped and bent, so that the internal optical fibers are prevented from being broken.

The vamp 1 is made of warp-knitted cloth, is woven in a warp-knitting mode, has the characteristics of high production speed and high yield, and is suitable for large-batch vamp production; the limiting filament 2 is made of terylene, has higher strength and elastic recovery capability, and is suitable for fixing the coated optical fiber 3 in electric embroidery; the coated optical fiber 3 is an optical fiber coated with a thermoplastic polyurethane elastomer, and compared with the conventional optical fiber, the coated optical fiber has stronger firmness and higher elasticity, avoids the problem of optical fiber breakage caused by a winding and wrapping mode, reduces the consumption rate of an outer-layer coating material, and improves the development efficiency; the external electrical appliance is an optical fiber light source device 4 for realizing the timing change of light or the instant light of image frequency flash.

This cladding optical fiber 3 includes inner core 31, interlayer 32 and cortex 33, and this inner core 31 material is polymethyl methacrylate, and this interlayer 32 material is the plastics of fluororesin, and this cortex 33 material is mixed thermoplastic polyurethane elastomer, and conventional optical fiber has been constituteed with interlayer 32 to this inner core 31, and the diameter of this optical fiber is 0.5mm, and through the cortex 33 of cladding one deck integrated into one piece outside conventional optical fiber, the folding endurance and the elasticity that are favorable to promoting optical fiber.

This embodiment provides the shoes that still a TPU cladding optic fibre electricity embroidered shoes vamp goods were made, still including sole 7 on TPU cladding optic fibre electricity embroidered vamp 1's basis, is provided with cavity 8 in this sole 7, and rechargeable battery 5, bluetooth control chip 6 set up in cavity 8 in the sole, can avoid occupying original space in the shoes, and the mouth that charges can also set up at this sole 7, does not set up on vamp 1. The control key handle sets up to wireless connection mode, and the user can save the wire conduction through bluetooth control chip 6 wireless connection on wireless remote controller and the control circuit board, can set up the luminous control key handle of control light-emitting component in the different positions of shoes, and does not receive the restriction of wire length.

The embodiment provides a manufacturing process of a TPU coated optical fiber electric embroidery vamp product, which comprises the following steps:

s1, manufacturing a coated optical fiber: winding the optical fiber on a creel, placing the mixed thermoplastic polyurethane elastomer material in an extrusion device, leading out the optical fiber by the creel and penetrating through the extrusion device, and coating the mixed thermoplastic polyurethane elastomer on the surface of the optical fiber by the extrusion device to form a coated optical fiber 3, wherein the specific preparation steps are as follows:

s11, preparing materials: the following raw materials are selected: thermoplastic polyurethane elastomer material, titanium dioxide, magnesium silicate mineral talc group talcum powder, dispersing agent, polyacrylate resin, antioxidant, heat stabilizer and light stabilizer;

s12, modification: putting the preparation raw materials selected in the step S11 into a double-screw extruder, heating, melting and extruding the raw materials by the extruder to obtain the modified thermoplastic polyurethane elastomer, wherein the heating temperature of the extruder is 200 ℃;

s13, cooling and pelletizing: putting the modified thermoplastic polyurethane elastomer into a cold water tank for water cooling, and dicing to obtain modified thermoplastic polyurethane elastomer slices, wherein the water temperature of water in the cold water tank is 5 ℃;

s14, drying: putting the thermoplastic polyurethane elastomer material in the S11 and the modified thermoplastic polyurethane elastomer slice in the S13 into a drying cylinder for drying, wherein the drying temperature is 90 ℃, and the drying time is 2 hours;

s15, coating: putting the dried thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer slices into a double-screw extruder, heating, melting and extruding, pulling the optical fiber to an extruder die, heating, melting and mixing the thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer, and then coating the surface of the optical fiber to obtain a coated optical fiber 3, wherein the extrusion temperature of the extruder is 220 ℃, the rotating speed of a motor is 10rpm, and the melt pressure is 5MPA;

s16, cooling: putting the coated optical fiber 3 prepared in the S15 into a cold water tank for water cooling, wherein the water temperature in the cold water tank is 5 ℃;

s17, rolling: and winding the cooled coated optical fiber 3 by using a winding device to obtain a wound coated optical fiber 3 yarn.

Wherein the dispersant is prepared by mixing stearamide and higher alcohol, the polyacrylate resin is polyacrylate resin with epoxy groups, the heat stabilizer is a barium stearate heat stabilizer, and the light stabilizer is bis (2, 6-tetramethyl piperidyl) sebacate light stabilizer.

S2, reading samples: importing a design layout program drawn by computer embroidery software on a computer embroidery machine, and reading a sample by the computer embroidery machine;

s3, threading: the method comprises the following steps of (1) threading prepared embroidery threads and limiting threads 2 on a computer embroidery machine according to patterns, wherein the embroidery threads are coated optical fibers 3 coated by thermoplastic polyurethane elastomers;

s4, fixing: paving a vamp 1 in a movable tabouret of a computerized embroidery machine, and fixing the vamp 1 on the tabouret;

s5, embroidering: and starting the computerized embroidery machine, and performing electric embroidery on the surface of the vamp 1 by using the coated optical fiber 3 and the limiting filament 2 according to the introduced design layout and the integral shape of the structure of the vamp 1 to form a woven product.

Example 2

The present embodiment is different from embodiment 1 in that:

the vamp 1 is made of woven fabric. The woven fabric has the advantages of stable structure and smooth cloth surface, generally has no sagging phenomenon when hanging, and is suitable for various cutting methods.

In the step of S1, manufacturing a coated optical fiber:

s11, preparing materials: the following raw materials are selected: thermoplastic polyurethane elastomer material, titanium dioxide, magnesium silicate mineral talc group talcum powder, dispersing agent, polyacrylate resin, antioxidant, heat stabilizer and light stabilizer;

s12, modification: putting the preparation raw materials selected in the step S11 into a double-screw extruder, heating, melting and extruding the raw materials by the extruder to obtain the modified thermoplastic polyurethane elastomer, wherein the heating temperature of the extruder is 210 ℃;

s13, cooling and pelletizing: putting the modified thermoplastic polyurethane elastomer into a cold water tank for water cooling, and dicing to obtain modified thermoplastic polyurethane elastomer slices, wherein the water temperature of water in the cold water tank is 10 ℃;

s14, drying: putting the thermoplastic polyurethane elastomer material in the S11 and the modified thermoplastic polyurethane elastomer slices in the S13 into a drying cylinder for drying, wherein the drying temperature is 100 ℃, and the drying time is 2.5 hours;

s15, coating: putting the dried thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer slices into a double-screw extruder, heating, melting and extruding, pulling the optical fiber to an extruder die, heating, melting and mixing the thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer, and then coating the surface of the optical fiber to obtain a coated optical fiber 3, wherein the extrusion temperature of the extruder is 230 ℃, the rotating speed of a motor is 15rpm, and the melt pressure is 6MPA;

s16, cooling: putting the coated optical fiber 3 prepared in the step S15 into a cold water tank for water cooling, wherein the water temperature in the cold water tank is 10 ℃;

s17, rolling: and winding the cooled coated optical fiber 3 by using a winding device to obtain a tube of coated optical fiber 3 yarn.

Example 3

The present embodiment is different from embodiment 1 in that:

in the step of S1, manufacturing a coated optical fiber:

s11, preparing materials: the following raw materials are selected: thermoplastic polyurethane elastomer material, titanium dioxide, magnesium silicate mineral talc group talcum powder, dispersing agent, polyacrylate resin, antioxidant, heat stabilizer and light stabilizer;

s12, modification: putting the preparation raw materials selected in the step S11 into a double-screw extruder, heating, melting and extruding the raw materials by the extruder to obtain the modified thermoplastic polyurethane elastomer, wherein the heating temperature of the extruder is 220 ℃;

s13, cooling and pelletizing: putting the modified thermoplastic polyurethane elastomer into a cold water tank for water cooling, and dicing to obtain modified thermoplastic polyurethane elastomer slices, wherein the water temperature of water in the cold water tank is 15 ℃;

s14, drying: putting the thermoplastic polyurethane elastomer material in the S11 and the modified thermoplastic polyurethane elastomer slices in the S13 into a drying cylinder for drying, wherein the drying temperature is 100 ℃, and the drying time is 3 hours;

s15, coating: putting the dried thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer slices into a double-screw extruder, heating, melting and extruding, pulling the optical fiber to an extruder die, heating, melting and mixing the thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer, and then coating the surface of the optical fiber to obtain a coated optical fiber 3, wherein the extrusion temperature of the extruder is 240 ℃, the rotating speed of a motor is 20rpm, and the melt pressure is 7MPA;

s16, cooling: putting the coated optical fiber 3 prepared in the step S15 into a cold water tank for water cooling, wherein the water temperature in the cold water tank is 15 ℃;

s17, rolling: and winding the cooled coated optical fiber 3 by using a winding device to obtain a tube of coated optical fiber 3 yarn.

Example 4

The present embodiment is different from embodiment 1 in that:

in the S4 fixing step, firstly, a substrate layer is paved in a movable tabouret of a computer embroidery machine, the substrate layer is a water-soluble substrate, the vamp 1 is fixed on the substrate layer, the embroidering step of S5 is carried out, after embroidering is finished, the woven product is put into boiling water to be repeatedly steamed and boiled until the water-soluble substrate is completely dissolved and removed, and then the woven product is put into drying equipment to carry out dewatering and drying treatment on the vamp 1.

Example 5

The present embodiment is different from embodiment 3 in that:

and (3) after the vamp 1 is dehydrated and dried, carrying out hot-press molding treatment on the molded TPU coated optical fiber vamp product.

It is to be understood that the disclosed embodiments of the invention are not limited to the particular process steps or materials disclosed herein, but rather, are extended to equivalents thereof as would be understood by those of ordinary skill in the relevant art. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.

Reference in the specification to "an embodiment" means that a particular feature, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, the appearances of the phrase or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.

Furthermore, the described features or characteristics may be combined in any other suitable manner in one or more embodiments. In the above description, certain specific details are provided, such as thicknesses, amounts, etc., to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth.

Claims (10)

1. A TPU coated optical fiber vamp product is characterized by comprising a vamp, a limiting filament and a coated optical fiber, wherein the coated optical fiber is woven on the vamp through the limiting filament by electric embroidery, and the coated optical fiber is an optical fiber coated with a thermoplastic polyurethane elastomer.

2. The TPU-coated optical fiber footwear upper article of claim 1, further comprising an external electrical appliance to which either end of the coated optical fiber is connected.

3. The TPU-coated optical fiber shoe upper article of claim 1, wherein the coated optical fiber is arranged in a serpentine pattern along the curvature of the shoe upper, and the direction change of the coated optical fiber is curved.

4. The TPU coated optical fiber vamp product of claim 2, wherein the limiting filament is terylene, the external electrical appliance is an optical fiber light source device, the optical fiber light source device comprises a control circuit board, a rechargeable battery, an LED lamp bead and a control button handle, the control circuit board is electrically connected with the rechargeable battery, and the LED lamp bead and the control button are electrically connected with the control circuit board through conducting wires.

5. The TPU-coated optical fiber shoe upper article of claim 1, wherein the coated optical fiber comprises an inner core, a barrier layer and a skin layer, the barrier layer is coated outside the inner core, the inner core and the barrier layer form the optical fiber, the optical fiber is coated outside the skin layer, and the skin layer is made of a hybrid thermoplastic polyurethane elastomer.

6. The TPU coated optical fiber shoe upper article of claim 1, wherein the shoe upper is a warp knit, weft knit, woven, or knitted fabric.

7. A shoe made of a TPU coated optical fiber vamp product is characterized by comprising the TPU coated optical fiber vamp and a sole, wherein the TPU coated optical fiber vamp is the TPU coated optical fiber vamp product as claimed in any one of claims 1 to 6, a cavity is arranged in the sole, an external electric appliance is arranged in the cavity, and a Bluetooth control chip is further arranged on the control circuit board.

8. A manufacturing process of a TPU coated optical fiber vamp product comprises the following steps:

s1, manufacturing a coated optical fiber: winding the optical fiber on a creel, placing the mixed thermoplastic polyurethane elastomer material in an extrusion device, leading out the optical fiber by the creel and penetrating the optical fiber through the extrusion device, and coating the mixed thermoplastic polyurethane elastomer on the surface of the optical fiber by the extrusion device so as to form a coated optical fiber;

s2, reading samples: importing a design layout program drawn by computerized embroidery software on a computerized embroidery machine, and reading a computer embroidery machine;

s3, threading: the method comprises the following steps of (1) threading prepared embroidery threads and limiting threads on a computer embroidery machine according to patterns, wherein the embroidery threads are coated optical fibers coated with a thermoplastic polyurethane elastomer;

s4, fixing: paving a vamp in a movable tabouret of a computer embroidery machine, and fixing the vamp on the tabouret;

s5, embroidering: and starting the computerized embroidery machine, and performing electric embroidery on the surface of the vamp by using the coated optical fiber and the limiting filament according to the whole shape or part shape of the vamp structure according to the imported design layout to form the woven product.

9. The process for making the TPU-coated optical fiber upper product according to claim 8, wherein in step S4, a base layer is disposed on the bottom surface of the upper, wherein the base layer is a water-soluble base, and the water-soluble base is removed by water-soluble treatment.

10. The process for manufacturing the TPU-coated optical fiber upper product according to claim 8, wherein in step S1, the specific process for manufacturing the coated optical fiber is as follows:

s11, preparing materials: the following raw materials are selected: thermoplastic polyurethane elastomer material, titanium dioxide, magnesium silicate mineral talc group talcum powder, dispersing agent, polyacrylate resin, antioxidant, heat stabilizer and light stabilizer;

s12, modification: putting the preparation raw materials selected in the step S11 into a double-screw extruder, heating, melting and extruding the raw materials by the extruder to prepare the modified thermoplastic polyurethane elastomer, wherein the heating temperature of the extruder is 200-220 ℃;

s13, cooling and pelletizing: putting the modified thermoplastic polyurethane elastomer into a cold water tank for water cooling, and pelletizing to obtain pellets of the modified thermoplastic polyurethane elastomer, wherein the water temperature of water in the cold water tank is 5-15 ℃;

s14, drying: cutting the thermoplastic polyurethane elastomer material in the S11 and the modified thermoplastic polyurethane elastomer in the S13 into granules, and putting the granules into a drying cylinder for drying, wherein the drying temperature is 90-100 ℃, and the drying time is 2-3 hours;

s15, coating: putting the dried thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer into a double-screw extruder, heating, melting and extruding, drawing the optical fiber to an extruder die, heating, melting and mixing the thermoplastic polyurethane elastomer material and the modified thermoplastic polyurethane elastomer, and coating the surface of the optical fiber to obtain a coated optical fiber, wherein the extrusion temperature of the double-screw extruder is 220-240 ℃, the rotating speed of a motor is 10-20rpm, and the melt pressure is 5-7MPA;

s16, cooling: putting the coated optical fiber prepared in the step S15 into a cold water tank for water cooling, wherein the water temperature in the cold water tank is 5-15 ℃;

s17, rolling: and winding the cooled coated optical fiber through a winding device to obtain the wound coated optical fiber yarn.

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