KR101762576B1 - Light heat generating down having excellent heat insulation, manufacturing method thereof and light heat generating down having excellent heat insulation comprising the same - Google Patents

Abstract

The present invention relates to a photothermal down-down which is excellent in warmth, a method for producing the same, and a photothermal down-dress which is excellent in heat retention including the same.
The photothermal heating down according to the present invention includes light emitting particles and light reflecting particles attached to the surface of the down, and the light generating particles include a metal oxide, a carbon compound, a thermally conductive polymer, a photocatalyst and a binder. Wherein the total amount of the photothermal particles is 25 to 45 parts by weight, the carbon compound is 15 to 35 parts by weight, the thermoconductive polymer is 5 to 15 parts by weight, the photocatalyst is 0.1 to 1.5 parts by weight, Wherein the binder resin and the light reflecting material are contained in an amount of 30 to 50 parts by weight and 50 to 100 parts by weight, respectively, of the binder resin and the light reflecting material, By weight.
According to the above-described configuration, the present invention can exhibit a high heat generating effect due to the interaction of the light generating particles attached to the down surface and the light reflecting particles, has excellent warming property, and can effectively increase the thermal efficiency.

Description

TECHNICAL FIELD [0001] The present invention relates to a light heating down material having excellent heat retention, a method of manufacturing the same, and a light heating down garment having excellent heat retention including the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a light heating down material,

More particularly, the present invention relates to a method of manufacturing a light emitting diode having excellent heat retention, a method of manufacturing the same, and a light emitting down garment having excellent heat retention including the same, and more particularly, Which is excellent in heat retention, exhibits a high heat generating effect by its action, has excellent heat retention and can effectively increase thermal efficiency, a method for producing the same, and a light heating down garment having excellent warmth.

As the outdoor clothing becomes popular, when the cold wind blows, everyone can take out the goose down or duck down jumper to maintain the body temperature. Outdoor products are already in the deep part of our life, and outdoor products of many media Knowledge, and so on, consumers are beginning to demand outdoor products with high functionality and warmth in preparation for extreme environments.

As a result of these trends, winter outdoor products are being developed with thin and light, warm, lightweight, windproof and breathable outdoor products that are increasingly popular.

The filler used in these winter outdoors is a woolen, mainly goose-down or duck down, which is mainly a mixture of downy feathers of ducks or geese. The fluff is mainly the chest of the aquarium, the lower part of the neck, the lower part of the neck, and the hair obtained from the wing. It enhances the warmth and touch of the warm-weather product and feathers improve the volume and fill power to improve the restorative power.

However, it is difficult to produce a large quantity of products because it is a limited material obtained from such a duck or goose. In addition, since most of the air-warming products currently in the market are formed with an air layer for improving the heat insulation efficiency and insulation efficiency, The thickness of the fabric constituting the covering of the product is increased to lower the activity, and there is a problem that the insulating property of the warming product is deteriorated due to the use of the detergent for a long period of time due to the exudation of the downwardness and the appearance is poor.

Accordingly, it is required to develop a material that can increase the activity due to the lightness, slimness and easy storage and transportation without deteriorating the inherent physical properties of the warm-up article, and can improve the production efficiency and the heat insulation property. A coating liquid containing a material having heat storage, heat radiation or exothermic effect is applied to a fiber fabric and then dried.

For example, a material having a high far infrared ray emissivity such as aluminum oxide (Al ₂ O ₃ ) is incorporated into a fiber or coated on a fabric to absorb solar light and convert it into far infrared rays. Is disclosed.

However, according to the method using such a thermal insulation material, in order to obtain a thermal effect, ceramic materials should be added in an amount of 1% or more of the fiber weight, so that not only are there problems such as cutting in the manufacturing process of the fiber itself, There is a problem.

As an effort to overcome the disadvantages of such ceramic materials, there is a method of using carbon nanofibers having a relatively excellent endothermic and exothermic functions as compared with ceramic materials. For example, a coating composition containing carbon nanofibers There is a technique of coating the surface of a yarn or fabric and then drying or curing the fabrics.

However, even when a coating composition containing carbon nanofibers is coated on the surface of a raw yarn or a fabric, a relatively large amount of carbon nanofibers must be coated to obtain a desired level of heat retaining or exothermic effect, There is a problem that the color of the fabric is obscured by the carbon material. Particularly, the specific black color of the carbon nanofiber has been limited to the development of the application of the fiber or fabric to which it is applied.

The present inventors have made efforts to develop a product having excellent thermal insulation and improved heat insulation efficiency and thermal insulation efficiency. As a result, the inventors have found that when light heat generating particles and light reflecting particles are attached to the down surface, It is possible to develop a cold product having a high heating effect and an excellent warming property by the interaction of the above-mentioned components.

Domestic Registration No. 10-1597176 (registered on February 18, 2016) Korean Patent Publication No. 10-2016-0106982 (published on September 13, 2016) Domestic Registration No. 10-1321017 (registered on October 16, 2013)

The present invention relates to a method of manufacturing a light heating down which exhibits a high heat generating effect by interaction of light emitting particles attached to a surface of a down surface and a light reflecting particle and which has excellent warming property and can effectively increase thermal efficiency, And an object of the present invention is to provide a light heating down garment having excellent thermal insulation.

It is another object of the present invention to provide a light emitting diode display which is light and slim yet easy to store and carry without increasing deterioration of its inherent physical properties and which can enhance the activity of the user, And a method of manufacturing the same and a light heating down garment having excellent thermal insulation including the same.

The various problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

The photothermal heating down according to the present invention includes light emitting particles and light reflecting particles attached to the surface of the down, and the light generating particles include a metal oxide, a carbon compound, a thermally conductive polymer, a photocatalyst and a binder. Wherein the total amount of the photothermal particles is 25 to 45 parts by weight, the carbon compound is 15 to 35 parts by weight, the thermoconductive polymer is 5 to 15 parts by weight, the photocatalyst is 0.1 to 1.5 parts by weight, Wherein the binder resin and the light reflecting material are contained in an amount of 30 to 50 parts by weight and 50 to 100 parts by weight, respectively, of the binder resin and the light reflecting material, By weight.

The light-generating particles are manufactured in the form of spherical particles having a diameter of 100 to 1000 nm, and the light-reflecting particles are manufactured in the form of spherical particles having a diameter of 500 to 2000 nm. The light- 10 to 50 parts by weight.

Wherein the metal oxide is at least one selected from the group consisting of fluorine-doped tin oxide (FTO), indium tin oxide (ITO) and aluminum-doped zinc oxide (AZO) Fiber powder, carbon nanotube and graphene, and the thermally conductive polymer is composed of 43% by weight of a polycarbonate resin, 42% by weight of a polyolefin resin and 15% by weight of a carbon Wherein the photocatalyst is made of at least one selected from the group consisting of graphene, manganese dioxide (MnO ₂ ), silicon dioxide (SiO ₂ ) and titanium dioxide (TiO ₂ ) Based resin, an acrylic-based resin, a urethane-acrylic copolymer, a polyimide resin, a polyamide resin, a polyether-based resin, a polyolefin- Lamin resin, and the binder resin is at least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate and ether acrylate, and the light reflecting material is selected from the group consisting of gold, At least one selected from the group consisting of aluminum, titanium dioxide (TiO 2), zinc oxide (ZnO), barium sulfate (BaSO ₄ ), zinc sulfide (ZnS) and antimony oxide (Sb ₂ O ₃ ) can be used.

Also, the method for manufacturing a light generating down according to the present invention is characterized in that light generating particles and light reflecting particles are attached to the surface of a down, wherein the light generating particles comprise 25 to 45 parts by weight of a metal oxide, 5 to 15 parts by weight of a thermoconductive polymer, 0.1 to 1.5 parts by weight of a photocatalyst and 50 to 100 parts by weight of a binder are prepared and uniformly mixed to prepare a light exothermic mixture, Extruding the light exothermic mixture is performed at a temperature of 250 to 350 ° C. and the thermally extruded light exothermic mixture is pulverized into nanoscale to produce light exothermic particles, 30 to 50 parts by weight of a resin and 50 to 100 parts by weight of a light reflecting material are prepared and uniformly mixed to prepare a light reflection mixture, The hot extrusion of the light reflection mixture is performed at a temperature of 250 to 350 ° C, and the thermally extruded light reflection mixture is pulverized into nano-sized particles to produce light reflecting particles.

The light-generating particles are manufactured in the form of spherical particles having a diameter of 100 to 1000 nm, and the light-reflecting particles are manufactured in the form of spherical particles having a diameter of 500 to 2000 nm. The light- Wherein the metal oxide is at least one selected from the group consisting of fluorine-doped tin oxide (FTO), indium tin oxide (ITO), and aluminum-doped zinc oxide (AZO) Wherein the carbon compound is at least one selected from the group consisting of carbon black, carbon fiber powder, carbon nanotube and graphene, and the thermoconductive polymer comprises 43 wt% polycarbonate resin, 42 wt% Wherein the photocatalyst is at least one selected from the group consisting of graphene, manganese dioxide (MnO ₂ ), silicon dioxide (SiO ₂ ) And titanium dioxide (TiO ₂ ), and the binder is selected from the group consisting of a urethane resin, an acrylic resin, a urethane-acrylic copolymer, a polyimide resin, a polyamide resin, a polyether resin, a polyolefin resin At least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate and ether acrylate is used as the binder resin, and the light reflecting material is at least one selected from the group consisting of urethane acrylate, gold, silver, aluminum, and titanium dioxide (TiO2), zinc (ZnO), barium sulfate (BaSO _4), zinc sulfide (ZnS), and antimony (Sb ₂ O ₃₎ with at least one selected from the group can be made of oxide have.

The light heating down garment according to the present invention has excellent heat retention and includes a light heating down located between the outer and inner lining, wherein the light heating down includes light emitting particles and light reflecting particles attached to the surface of the down Wherein the photothermal particles comprise a metal oxide, a carbon compound, a thermally conductive polymer, a photocatalyst, and a binder, wherein the total content of the photothermal particles is 25 to 45 parts by weight, the carbon compound is 15 to 35 parts by weight , The thermoconductive polymer is contained in an amount of 5 to 15 parts by weight, the photocatalyst is contained in a proportion of 0.1 to 1.5 parts by weight, and the binder is contained in a weight ratio of 50 to 100 parts by weight, the light reflecting particles comprising a binder resin and a light reflecting material, The binder resin and the light reflecting material are contained in a total weight ratio of 30 to 50 parts by weight and 50 to 100 parts by weight, respectively, The particles are produced in the form of spherical particles having a diameter of 100 to 1000 nm, and the light reflecting particles are produced in the form of spherical particles having a diameter of 500 to 2000 nm, and the light reflecting particles are contained in an amount of 10 to 50 Wherein the metal oxide is at least one selected from the group consisting of fluorine-doped tin oxide (FTO), indium tin oxide (ITO) and aluminum-doped zinc oxide (AZO) The carbon compound is selected from the group consisting of carbon black, carbon fiber powder, carbon nanotube and graphene. The thermoconductive polymer is composed of 43 wt% polycarbonate resin, 42 wt% polyolefin resin and it has been manufactured to include 15% by weight of carbon-based thermal conductive filler, wherein the photocatalyst is graphene, manganese dioxide (MnO _2), silicon dioxide (SiO ₂₎ and T dioxide At least one selected from the group consisting of (TiO ₂₎ is used, the binder is urethane-based resins, acrylic resins, urethane-acrylic copolymer, a polyimide resin, a polyamide resin, polyether-based resin, polyolefin-based resin or a melamine Based resin is used, and the binder resin is at least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate and ether acrylate, and the light reflecting material is selected from the group consisting of gold, , aluminum, titanium dioxide (TiO2), zinc oxide (ZnO), barium sulfate (BaSO _4), zinc sulfide (ZnS), and antimony oxide (Sb ₂ O ₃₎ at least one selected from the group consisting of is used.

The details of other embodiments are included in the detailed description.

The present invention can exhibit a high heat generating effect due to the interaction of the light emitting particles and the light reflecting particles attached to the surface of the down, has excellent warming property, and can effectively increase the thermal efficiency.

Further, the present invention can increase the activity of the user because it is light and slim but easy to store and carry without deteriorating inherent physical properties, and can improve the production efficiency and insulation property.

It will be appreciated that embodiments of the technical idea of the present invention can provide various effects not specifically mentioned.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view for explaining a light heating down with excellent warmth keeping according to the present invention. FIG.
Fig. 2 is a schematic view for explaining a light-heating down garment excellent in warmth keeping according to the present invention.

Advantages and features of the present invention, and methods of accomplishing the same, will be apparent from and elucidated with reference to the embodiments described hereinafter in detail. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an optical heating down according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view for explaining light heating down with excellent warmth according to the present invention, and FIG. 2 is a schematic view for explaining a light heat down garment having excellent warmth according to the present invention.

Referring to FIGS. 1 and 2, a photothermal heating down according to the present invention includes light emitting particles 200 and light reflecting particles 300 attached to a surface of a down (100).

The down (100) is very light due to the characteristics of downy hair and goose down hair, and is excellent in thermal insulation property, and can be widely used as a warming filler for various winter clothes in winter .

In the present invention, the down 100 includes ducks and goose hair, hair and feathers of a duck, a goose's neck, and a chest, and the description of the down 100 is well known. And for the sake of clarity of the technical idea of the present invention, the detailed description of the down-stream 100 will be omitted.

The light generating particles 200 are made of a material capable of generating heat by itself by absorbing visible light or infrared light 400. In the present invention, the light generating particles 200 are formed of a material that emits visible light or fluorescent light The heat generation efficiency and the heat efficiency can be improved by generating heat by the visible light or the infrared ray 400 or the infrared ray 500 due to the body heat of the human body.

In the present invention, the light exothermic particles 200 may include metal oxides, carbon compounds, thermoconductive polymers, photocatalysts, and binders, and may contain 25 to 45 parts by weight of a metal oxide, 5 to 15 parts by weight of the thermally conductive polymer, 0.1 to 1.5 parts by weight of the photocatalyst, and 50 to 100 parts by weight of the binder.

In addition, in the present invention, the light emitting particles 200 may be in the form of spherical particles having a diameter of 100 to 1000 nm. When the diameter of the light emitting particles 200 is less than 100 nm, the surface area of the particles is small, A problem that the infrared rays 400 and 500 are difficult to be irradiated may occur. When the thickness is more than 1000 nm, there may occur a problem that the particle size is large and it is difficult to stably adhere to the surface of the down-stream 100.

The metal oxide may be at least one selected from the group consisting of fluorine-doped tin oxide (FTO), indium tin oxide (ITO) and aluminum-doped zinc oxide (AZO) Tin oxide may be used.

In general, the metal oxide used in the conventional light generating particles 200 is deteriorated with time to increase the heat resistance. In the present invention, by using fluorine-doped tin oxide (FTO) as the metal oxide, The heat generating resistance can be reduced.

The carbon compound may be at least one selected from the group consisting of carbon black, carbon fiber powder, carbon nanotube, and graphene, and graphene may be preferably used.

In the present invention, the metal oxide and the carbon compound may include 25 to 45 parts by weight of the metal oxide and 15 to 35 parts by weight of the carbon compound, respectively, in the total content of the light generating particles 200. When the metal oxide and the carbon compound are in the above- The infrared ray 500 or the infrared ray 500 due to the infrared ray 400 or the body heat of the human body does not sufficiently generate heat, which may result in insufficient warming effect. On the other hand, If the content is in excess of the upper limit range, the relative content of the other components may be insufficient, resulting in a problem that the durability and adhesion of the light emitting particles 200 are lowered.

The thermally conductive polymer is added to improve the thermal conductivity. The thermally conductive polymer effectively controls the morphology of the compositions of the light generating particles 200 to effectively form a network between the compositions to improve the thermal conductivity, Thus, the light emitting efficiency and the thermal efficiency of the light emitting particles 200 according to the present invention can be improved.

In the present invention, the thermally conductive polymer may be manufactured to include 43% by weight of a polycarbonate resin, 42% by weight of a polyolefin resin, and 15% by weight of a carbon-based thermally conductive filler.

The polycarbonate resin and the polyolefin resin are incompatible with each other and form two phases when they are mixed. The polycarbonate resin has a higher affinity to the carbon-based thermally conductive filler than the polyolefin resin, Can be present in the polycarbonate-based resin. The polycarbonate-based resin is advantageous in that it has excellent mechanical strength, high heat resistance, transparency, and excellent moldability, so that the polyolefin-based resin has excellent heat resistance and transparency There is a slight advantage.

The polycarbonate resin may be a linear or branched polycarbonate homopolymer prepared by reacting dihydric phenol with phosgene or using an ester interchange reaction of a dihydric phenol and a carbonate precursor, Polyester copolymers and the like.

The dihydric phenol is preferably selected from the group consisting of 2,2-bis (4-hydroxyphenyl) propane (bisphenol A), bis (4-hydroxyphenyl) methane, 2,2- Methylphenyl) propane, or 1,1-bis (4-hydroxyphenyl) cyclo-nucleic acid, and the like. The carbonate precursor may include diphenyl carbonate, carbonyl halide, or diaryl carbonate. , And the polycarbonate resin used in the present invention may be 309 PJ of Samyang Corporation.

The polyolefin resin may be at least one selected from the group consisting of ethylene octene rubber (EOR), ethylene propylene rubber (EPR), ethylene-propylene-diene rubber (EPDM), linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (PP) may be used.

As the carbon-based thermally conductive filler, graphite may be used, and the graphite may exhibit a very high thermal conductivity of 400 W / (m · k) or more.

In the present invention, the thermally conductive polymer may include 5 to 15 parts by weight of the total amount of the light generating particles 200. If the amount of the heat conductive polymer is less than 5 parts by weight, There is little improvement in the effect of improving the heat generation. When the amount of the additive is more than 15 parts by weight, the heat generating characteristics of the light generating particles 200 may be deteriorated.

In the present invention, the photocatalyst is selected from the group consisting of graphene, manganese dioxide (MnO ₂ ), silicon dioxide (SiO ₂ ) and titanium dioxide (TiO ₂ ). The photocatalyst is added to improve heat generation and antibacterial effect. More than one may be used, preferably graphene may be used.

In the present invention, the photocatalyst may contain 0.1 to 1.5 parts by weight of the total amount of the photothermal particles 200. When the photocatalyst is less than 0.1 part by weight, the content of the photocatalyst is insufficient, If the amount is more than 1.5 parts by weight, the effect of addition of the photocatalyst is not increased so much, and the heat generating characteristics of the light emitting particles 200 may be deteriorated.

The binder provides an adhesive force to fix and attach the light emitting particles 200 to the surface of the downward. In the present invention, a thermosetting or UV curable resin may be used as the binder. For example, At least one selected from a urethane resin, an acrylic resin, a urethane-acrylic copolymer, a polyimide resin, a polyamide resin, a polyether resin, a polyolefin resin or a melamine resin may be used, Resins can be used.

In the present invention, the binder may contain 50 to 100 parts by weight of the total amount of the light exothermic particles 200. If the amount of the binder is less than 50 parts by weight, the compositions contained in the light exothermic particles 200 are firmly attached And if it is contained in an amount exceeding 100 parts by weight, the relative content of the metal oxide, the carbon compound and the like may be low and the heat-generating property may be deteriorated.

In the present invention, the light-reflective particles 300 may be a visible light emitted from a sunlight or a fluorescent lamp or a body heat of a human body. The light-reflective particles 300 may be a material that reflects the irradiated light to exhibit a twinkling effect. The amount of visible light or infrared rays 400 or 500 irradiated to the light emitting particles 200 is increased to generate reflected light 600 reflecting the emitted infrared rays, The light emitting efficiency and thermal efficiency can be further improved.

In the present invention, the light reflection particles 300 may be included in a proportion of 10 to 50 parts by weight based on 100 parts by weight of the light generating particles 200. When the light reflection particles 300 are less than 10 parts by weight, The effect of improving the light emitting efficiency and thermal efficiency of the light emitting particles 200 is insufficient because the light reflecting effect is insufficient. When the light emitting particles 200 are contained in an amount exceeding 50 parts by weight, the relative content of the light emitting particles 200 is small, The amount of direct irradiation of the light-generating particles 200 is reduced, so that the effect of improving light heat efficiency and thermal efficiency can be reduced.

In addition, in the present invention, the light reflecting particles 300 may be made of spherical particles having a diameter of 500 to 2000 nm. When the diameter of the light reflecting particles 300 is less than 500 nm, If the thickness is more than 2,000 nm, the light reflection particles 300 may be too large to interfere with the path of the visible light or the infrared light directly irradiated to the light generation particles 200.

In the present invention, the light reflecting particles 300 are prepared by including a binder resin and a light reflecting material, wherein 30 to 50 parts by weight of the binder resin and 50 to 100 parts by weight of the light reflecting material 300 By weight, based on the weight of the composition.

In the present invention, when the binder resin is contained in an amount less than 30 parts by weight, it may be difficult to provide a sufficient adhesive force. When the binder resin is contained in an amount exceeding 50 parts by weight, Problems can arise.

When the light reflection material is contained in an amount of less than 50 parts by weight, a sufficient light reflection effect may not be obtained. When the light reflection material is contained in an amount exceeding 100 parts by weight, the relative content of the binder is low, There may be a problem.

In the present invention, the binder resin may be at least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate and ether acrylate.

Further, as the light reflecting material is gold, silver, aluminum, and titanium dioxide (TiO2), zinc oxide (ZnO), barium sulfate (BaSO _4), zinc sulfide (ZnS), and antimony oxide (Sb ₂ O ₃₎ in the present invention May be used.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of manufacturing an optical heating down according to the present invention will be described in detail with reference to the accompanying drawings.

The light heating down with excellent warming according to the present invention can be manufactured by attaching the light generating particles 200 and the light reflecting particles 300 to the surface of the prepared down 100.

The light generating particles 200 and the light reflecting particles 300 may be manufactured by the following manufacturing method and the light generating particles 200 and the light reflecting particles 300 may be formed by using an acrylic, It can be attached to the surface of the down.

Down (100) Preparation

The down (100) is very light due to the characteristics of downy hair and goose down hair, and is excellent in thermal insulation property, and can be widely used as a warming filler for various winter clothes in winter .

In the present invention, the down (100) may be a known duck, goose neck, chest hair and feather.

Light heat  Preparation of Particles 200

First, 25 to 45 parts by weight of a metal oxide, 15 to 35 parts by weight of a carbon compound, 5 to 15 parts by weight of a thermally conductive polymer, 0.1 to 1.5 parts by weight of a photocatalyst, and 50 to 50 parts by weight of a photocatalyst, 100 parts by weight are prepared and uniformly mixed to prepare a photothermographic mixture. Among the compositions for preparing the light generating particles 200, the metal oxide, the carbon compound, and the photocatalyst may be pulverized into nano-sized particles, and the compositions may be uniformly mixed at room temperature.

The metal oxide may be at least one selected from the group consisting of fluorine-doped tin oxide (FTO), indium tin oxide (ITO) and aluminum-doped zinc oxide (AZO) Tin oxide may be used.

The carbon compound may be at least one selected from the group consisting of carbon black, carbon fiber powder, carbon nanotube, and graphene, and graphene may be preferably used.

The thermally conductive polymer is added to improve the thermal conductivity. The thermally conductive polymer effectively controls the morphology of the compositions of the light generating particles 200 to effectively form a network between the compositions to improve the thermal conductivity, Thus, the light emitting efficiency and the thermal efficiency of the light emitting particles 200 according to the present invention can be improved.

In the present invention, the thermally conductive polymer may be manufactured to include 43% by weight of a polycarbonate resin, 42% by weight of a polyolefin resin, and 15% by weight of a carbon-based thermally conductive filler.

In the present invention, the photocatalyst is selected from the group consisting of graphene, manganese dioxide (MnO ₂ ), silicon dioxide (SiO ₂ ) and titanium dioxide (TiO ₂ ). The photocatalyst is added to improve heat generation and antibacterial effect. More than one may be used, preferably graphene may be used.

The binder provides an adhesive force to fix and attach the light emitting particles 200 to the surface of the downward. In the present invention, a thermosetting or UV curable resin may be used as the binder. For example, At least one selected from a urethane resin, an acrylic resin, a urethane-acrylic copolymer, a polyimide resin, a polyamide resin, a polyether resin, a polyolefin resin or a melamine resin may be used, Resins can be used.

Next, the uniformly mixed light exothermic mixture can be hot extruded.

The hot extrusion of the light exothermic mixture may be performed using a device such as a known twin-screw extruder, for example. The hot extrusion process of the light exothermic mixture may be performed at a temperature of 250 to 350 ° C . If the hot extrusion process is carried out at a temperature lower than 250 ° C, the composition may not be sufficiently mixed. When the temperature is more than 350 ° C, the thermally decomposed particles of the binder or the thermally- 200 may be deteriorated.

On the other hand, the hot extrusion using the known biaxial extruder is well known in the art, and a detailed description thereof will be omitted for clarity of description convenience and technical idea of the present invention.

Next, the heat-generating particles 200 may be prepared by pulverizing the thermally extruded photo-thermal mixture into nano-sized particles. The pulverization process of the thermally extruded photo-thermal mixture may be performed by a known apparatus such as a ball mill The nano-sized light-generating particles 200 can be produced. At this time, the light emitting particles 200 may be manufactured in the form of spherical particles having a diameter of 100 to 1000 nm.

Light reflection  Preparation of Particles 300

First, 30 to 50 parts by weight of a binder resin and 50 to 100 parts by weight of a light reflecting material are prepared and uniformly mixed to prepare a light reflection mixture. At this time, the light reflection material can be used as the nano-sized particles, and the light reflection mixture can be uniformly mixed at room temperature.

The binder resin may be at least one selected from the group consisting of urethane acrylate, epoxy acrylate, polyester acrylate and ether acrylate.

The light reflecting material is one selected from gold, silver, aluminum, a group consisting of titanium dioxide (TiO2), zinc (ZnO), barium oxide (BaSO _4), zinc sulfide (ZnS), and antimony oxide (Sb ₂ O ₃₎ More than one can be used.

Next, the uniformly mixed light reflection mixture can be hot extruded.

The hot extrusion of the light reflection mixture can be carried out using a device such as, for example, a known twin-screw extruder. The hot extrusion process of the light reflection mixture is performed at a temperature of 250 to 350 ° C . If the hot extrusion process is performed at a temperature lower than 250 ° C, the light reflection mixture may not sufficiently be mixed. If the heat extrusion process is performed at a temperature higher than 350 ° C, May be deteriorated.

On the other hand, the hot extrusion using the known biaxial extruder is well known in the art, and a detailed description thereof will be omitted for clarity of description convenience and technical idea of the present invention.

The thermally extruded light reflection mixture may be pulverized into nano-sized particles to produce the light reflection particles 300. The pulverization process of the thermally extruded light reflection mixture may be performed using a known device such as a ball mill The nano-sized light-generating particles 200 can be produced. At this time, the light generating particles 200 may be manufactured in the form of spherical particles having a diameter of 500 to 2000 nm.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a garment including a light heating down according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The garment including the light heating down according to the present invention may be provided with a light heating down between the outer cloth 700 and the inner cloth 800. The outer 700 is mainly a part irradiated with visible light or infrared rays 400 directly emitted from sunlight or fluorescent lamps and the inner lining 800 can be irradiated with the infrared rays 500 mainly due to the heat of the human body.

The heat generating particles 200 and the light reflecting particles 300 may be attached to the surface of the light heating down located between the outer cloth 700 and the inner cloth 800. The light emitting particles 200 and the light reflecting particles (300) may be made using the composition and the manufacturing method described above.

In addition, in the present invention, the heat generating efficiency and thermal efficiency of the down garment can be improved by using the light emitting particles 200 and the light reflecting particles 300 attached to the surface of the down (100) The visible light or the infrared ray 400 is transmitted through the outer surface 700 of the clothes and is irradiated to some of the light emitting particles 200 and the light emitting particles 200 themselves heat up due to the absorption of the visible light or the infrared ray 400 .

The visible ray or infrared ray 400 transmitted through the outer cloth 700 of the garment may be reflected or refracted by the light reflecting particles 300. The reflected or refracted reflected light 600 may be reflected by some light The amount of heat generated by the heat generating particles 200 is increased by the irradiation of the exothermic particles 200 and the irradiation of the reflected light 600, so that the warmth of the down garment according to the present invention can be increased.

In addition, the lining 800 in contact with the human body can be radiated in the form of an infrared ray 500 due to human body heat. The infrared ray 500 due to the human body heat is also transmitted through the visible ray or the infrared ray 400 The heat generating particles 200 are heated by the same principle as that of the present invention, so that the warmth of the down garment according to the present invention can be further increased.

Best Mode for Carrying Out the Invention Hereinafter, embodiments and comparative examples of optical heating down with excellent warmth keeping according to the present invention will be described in more detail with reference to the accompanying drawings.

It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiment within the scope and spirit of the present invention, And modifications that fall within the scope of the appended claims.

≪ Example 1 >

First, light-generating particles having a diameter of 100 to 1000 nm were prepared with 35 parts by weight of metal oxide, 25 parts by weight of carbon compound, 10 parts by weight of thermally conductive polymer, 0.5 part by weight of photocatalyst and 80 parts by weight of binder, 40 parts by weight of binder resin, Light reflecting particles having a diameter of 500 to 2000 nm were prepared with 80 parts by weight of the reflective material.

Next, the light-generating particles and the light-reflecting particles were adhered to the surface of the down to produce a light-generating down, wherein the light-reflecting particles were contained in a ratio of 35 parts by weight to 100 parts by weight of the light-generating particles.

Then, the light-emitting down garment was laminated between the outer and inner lining of the garment to produce the light-emitting down garment.

≪ Example 2 >

In Example 2, 30 parts by weight of a metal oxide, 30 parts by weight of a carbon compound, 12 parts by weight of a thermoconductive polymer, 0.2 parts by weight of a photocatalyst, and 60 parts by weight of a binder were mixed to prepare a light- Light emitting particles having a diameter of 500 to 2000 nm were prepared with 35 parts by weight of a binder resin and 90 parts by weight of a light reflecting material.

≪ Example 3 >

In Example 2, 40 parts by weight of a metal oxide, 18 parts by weight of a carbon compound, 8 parts by weight of a thermoconductive polymer, 1.2 parts by weight of a photocatalyst, and 100 parts by weight of a binder were mixed to prepare a light- Light emitting particles having a diameter of 500 to 2000 nm were prepared with 40 parts by weight of a binder resin and 55 parts by weight of a light reflecting material.

≪ Comparative Example 1 &

The down garment was produced in the same manner as in Example 1, but in Comparative Example 1, the down garment was produced using only the light reflecting particles without using the light generating particles.

≪ Comparative Example 2 &

The down garment was produced in the same manner as in Example 1, but in Comparative Example 2, the down garment was produced using only the light generating particles without using the light reflecting particles.

≪ Comparative Example 3 &

The down garment was produced using only down without using light emitting particles and light reflecting particles.

1. Evaluation of heat insulation by light heat

The warming performance test was performed according to the heating effect of the light emitting down garment (or down garment) manufactured according to the above embodiments and comparative examples.

Experimental conditions: The warmth evaluation experiment was carried out in the following order.

1) Laboratory temperature: (20 ± 1) ℃

2) The temperature of the down garment was stabilized in the laboratory.

3) The light bulb (fluorescent lamp) of 500W was lighted at a distance of 40cm away from the garment to induce light generation and light reflection of the down garment.

4) Total time was 30 minutes.

5) The temperature of the surface of the down cloth was measured using a thermal camera.

Surface temperature of the down clothes outer material Time (minutes) Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 0 20.5 20.5 20.5 20.5 20.5 20.5 5 42.5 41.3 42.1 28.9 38.9 25.6 10 43.7 43.5 43.9 30.2 40.6 27.7 15 45.5 44.9 45.9 31.6 41.3 28.3 20 46.2 45.8 46.7 32.5 42.7 29.4 25 46.9 46.3 47.1 33.3 43.6 30.1 30 47.8 46.9 48.2 33.9 44.2 30.8

Referring to Table 1, it can be seen that the surface temperature of the light-emitting down clothing manufactured according to Examples 1 to 3 is higher than that of the down clothes manufactured according to the comparative examples.

In Comparative Examples 1 to 3, it was confirmed that the temperature of the outer surface of the down garment of Comparative Example 2 produced using only the light generating particles was significantly higher than that of Comparative Examples 1 and 3, It was confirmed that the temperature of the outer surface of the down garment of Example 1 rose slightly as compared with that of Comparative Example 3. The visible light emitted from the bulb was irradiated to the light emitting particles to improve the heat generating property, Can be further improved.

2. Antimicrobial activity measurement

In order to confirm the antimicrobial activity of the photocatalyst contained in the light exothermic particles, an antibacterial performance test was carried out as follows.

Klebsiella pneumoniae ATCC 4352 and Staphylococcus aureus ATCC 6538, a major pathogen of food poisoning, were inoculated on a 0.05% nonionic surface active agent (Snogen) at 37 ℃ for 24 hours The cultured bacteria were used as an inoculum and were performed according to the KSK 0693 method.

Antibacterial performance (bacterium reduction rate,%) Official Example 1 Example 2 Example 3 Pneumococcus 99.9 99.8 99.9 Staphylococcus aureus 99.8 99.8 99.9

Referring to Table 2, it was confirmed that the photothermal down garment produced according to Examples 1 to 3 exhibited high antimicrobial activity by including a photocatalyst.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be possible. It is therefore to be understood that one embodiment described above is illustrative in all aspects and not restrictive.

100; Down 200; Light generating particles
300; Light reflecting particle
400; Visible light or infrared light by the sun or fluorescent light
500; Infrared rays by human body heat
600; Reflected light 700; Outer
800; lining

Claims (6)

Heat-generating particles adhering to the surface of the lower layer and light-reflecting particles,
Wherein the photothermal particles are prepared from a metal oxide, a carbon compound, a thermally conductive polymer, a photocatalyst and a binder, wherein the total content of the photothermal particles is 25 to 45 parts by weight, the carbon compound is 15 to 35 parts by weight, 5 to 15 parts by weight of the thermally conductive polymer, 0.1 to 1.5 parts by weight of the photocatalyst and 50 to 100 parts by weight of the binder,
Wherein the light reflecting particles are made of a binder resin and a light reflecting material, wherein the binder resin and the light reflecting material are contained in a weight ratio of 30 to 50 parts by weight and 50 to 100 parts by weight, respectively, Heat-resistant down to excellent heat retention.
The method according to claim 1,
The light-generating particles are manufactured in the form of spherical particles having a diameter of 100 to 1000 nm, and the light-reflecting particles are manufactured in the form of spherical particles having a diameter of 500 to 2000 nm. The light- 10 to 50 parts by weight.
delete And the light-emitting particles and the light-reflecting particles are attached to the surface of the lower layer,
The light-
25 to 45 parts by weight of a metal oxide, 15 to 35 parts by weight of a carbon compound, 5 to 15 parts by weight of a thermally conductive polymer, 0.1 to 1.5 parts by weight of a photocatalyst and 50 to 100 parts by weight of a binder are prepared and uniformly mixed to prepare a light exothermic mixture ,
Wherein the step of extruding the light exothermic mixture is performed at a temperature of 250 to 350 ° C,
Extruding the thermally extruded photo-thermal mixture into a nano-sized powder,
The light-
30 to 50 parts by weight of a binder resin and 50 to 100 parts by weight of a light reflecting material are prepared and uniformly mixed to prepare a light reflection mixture,
Wherein the thermally extruding process of the light reflection mixture is performed at a temperature of 250 to 350 ° C,
Wherein the thermally extruded light reflection mixture is pulverized into nano-sized particles to produce light reflecting particles.
delete delete

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