KR101620503B1 - The product method of heating film for electromagnetic shielding - Google Patents
The product method of heating film for electromagnetic shielding Download PDFInfo
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- KR101620503B1 KR101620503B1 KR1020150074270A KR20150074270A KR101620503B1 KR 101620503 B1 KR101620503 B1 KR 101620503B1 KR 1020150074270 A KR1020150074270 A KR 1020150074270A KR 20150074270 A KR20150074270 A KR 20150074270A KR 101620503 B1 KR101620503 B1 KR 101620503B1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/10—Forme cylinders
- B41F13/11—Gravure cylinders
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Surface Heating Bodies (AREA)
Abstract
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat generating film, and more particularly, to a method of manufacturing a magnetic wave shielding heating film capable of shielding electromagnetic waves (electric and magnetic fields) .
A shielding material is attached to walls or the like of a building to provide an electromagnetic wave shielding function to a building or a structure. However, it is difficult to expect sufficient electromagnetic wave shielding performance as a conventional shielding material.
Although a steel plate is used as a conventional shielding material, the steel plate has a disadvantage that it is excellent in electromagnetic wave shielding effect, but is expensive and heavy in weight. Korean Patent Laid-Open Publication No. 2003-0052089 discloses a method for manufacturing a steel sheet by mixing 5 to 25% of Fe-Si-Al, 5 to 30% of carbon and 5 to 30% of a binder in a steelmaking process And a method for producing a board by a method of pressing and shaping it by putting it in a frame. However, such a conventional board has a disadvantage in that the electromagnetic wave shielding performance is low, and the manufacturing process is complicated.
Particularly, a heating mat made of electric cushion or an electric cushion installed on a chair or other floor is used to warm the cold floor in the winter so as to take a good night's sleep.
Such a heat-generating mat is easy to operate because it operates by using a domestic power source used in the home, easily generates heat by supplying electricity, has a rapid rise in temperature, and can be easily controlled by adjusting the power supplied to the mat. Recently, the use of heating mat has been increasing.
In addition, the heating mat is used as a principle to generate heat by resistance when a heating wire for heating is wired inside and a power is applied to the heating wire.
Conventionally, a number of techniques (for example, patent registration No. 938630, registered on Jan. 18, 2010) have been proposed for such a heat-generating mat. In particular, the conventional patent No. 938630 is designed to control the temperature of the heating mat by measuring the current flowing through the heating line for controlling the temperature of the heating mat, which generates heat by the supply of power.
As described above, since the heating mat is operated as a principle that the temperature rises with an increase in resistance while an electrical signal is applied to the mat, electromagnetic waves harmful to the human body are generated.
Especially, since most of the heating related products used in home and industry are using AC power, electromagnetic waves generated from the heating products can be blocked to some extent by covering the conductor, but magnetic waves are an exception.
At the International IARC (Cancer Center), magnetic waves are considered to be the cause of carcinogenesis, along with a 5-fold increase in cancer incidence when magnetic waves exceed 500 nT.
Therefore, it is urgent to propose a technique for shielding magnetic waves harmful to the human body.
An object of the present invention to solve such problems is to provide a method for manufacturing a magnetic wave shielding heating film in which a conductive ink is directly printed on a PET film by a R2R gravure process so that a magnetic field can be shielded by using a reverse current for magnetic shielding .
In order to achieve the above object, there is provided a method of manufacturing a magnetic wave shielding exothermic film which is heated by a power source applied to a power source of the present invention, comprising the steps of: (a) printing a pattern generated by a power source supplied from the power source, And (b) printing a pattern, which is generated by the power supplied from the power supply unit, on the other surface of the substrate with the conductive ink.
The step (a) includes the steps of (a-1) preparing a substrate, and (a-2) printing a conductive ink on one side of the substrate to form a pattern, Lt; / RTI >
The pattern may include a first pattern of a closed loop connecting the positive electrode and the negative electrode, and a closed loop pattern of another positive electrode and the negative electrode, wherein a current flows in a direction opposite to a current flowing in the first pattern + Electrode "and another" + electrode "are sequentially arranged on one surface of the substrate, and a second pattern is formed on the opposite surface The first pattern is repeatedly connected to one end of the "-electrode ", and the pattern connected to another" + electrode " The second pattern is formed so that a current flows in a direction opposite to the current flowing in the first pattern within one interval and is connected to the "-electrode ".
And a roll lureol gravure printing apparatus includes a feeding roller for feeding a substrate in a roll state, a first plate making roller for printing a first pattern on the engraved surface on one side of the substrate supplied from the feeding roller, A first ink injector for applying conductive ink to the engraved pattern formed on the first ink injector, a second plate-making roller for supplying a substrate drawn out from the first ink injector and supplying a second pattern on the other surface of the substrate, And a second ink injector for applying a conductive ink to the engraved pattern drawn from the plate-making roller. [0030] [29] And the embossed mold in which the pattern is formed.
Therefore, according to the magnetic wave shielding exothermic film producing method of the present invention, the magnetic wave can be effectively blocked by applying the roll-to-roll printing method and the reverse current printing patterning technique.
The process can be improved by printing the conductor directly on the opposite side of the heating element, eliminating the conventional method of covering the conductor with a double-sided tape or laminating process on the opposite side of the heating film.
1 is a cross-sectional view of a magnetic wave shielding exothermic film according to an embodiment of the present invention.
2 is a plan view of a magnetic wave shielding heat generating film according to an embodiment of the present invention.
3 is a view for explaining a pattern for forming a reverse current according to an embodiment of the present invention.
4 is a flow chart for explaining a method of manufacturing the magnetic wave shielding exothermic film of the present invention.
5 is a view showing a roll-to-roll gravure printing apparatus for explaining an embodiment of the present invention.
It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.
Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. It should be noted that the terms such as " part, "" module, " .
It is to be understood that when an element is referred to as being "connected" to another element throughout the specification, it may be directly connected to the other element, but other elements may be present in between. Also, other expressions describing the relationship between the components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.
Identification codes (e.g., a, b, c, ...) in each step throughout the specification are used for convenience of description, and the identification codes do not limit the order of each step, Unless the context clearly states a particular order, it may take place differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a cross-sectional view of a magnetic wave shielding exothermic film according to an embodiment of the present invention. As shown in FIG. 1, the magnetic wave shielding exothermic film of the present invention includes a
In the present invention, the silver heating line is printed in a staggered pattern in which a reverse current flows, so that the magnetic wave is canceled so that the same effect of shielding the magnetic wave can be obtained.
In addition, the present invention enables a double-sided printing of a pattern on both sides of a substrate to more effectively shield magnetic waves.
For this purpose, electrodes are formed on each substrate with three-pole terminals, and two terminals of "+" and one terminal of "-" are alternately arranged so that the patterns intersect alternately.
2 is a plan view of a magnetic wave shielding exothermic film according to an embodiment of the present invention and FIG. 3 is a plan view illustrating a pattern for forming a reverse current according to an embodiment of the present invention. The
That is, a pattern connected to the
As a result, in the pattern of the present invention, the electrode terminals are sequentially arranged in the order of "+
(+, -, +) is formed on one side of the above-mentioned structure because the objective of the present invention is to effectively cut off the magnetic waves by applying the roll-to-roll printing method and the reverse current printing patterning technique in the printing electronic technology. Is applied to compensate for the magnetic wave in the staggered pattern.
In the meantime, according to the present invention, an electromagnetic shielding heat-generating film capable of preventing a magnetic wave more effectively by printing a conductor directly on the opposite side of a heating body, excluding a conventional method of covering a conductor by a double- Which is also characterized by the method of manufacturing.
1, a magnetic wave shielding heating film according to the present invention includes a
The
The
Here, PET is thermoplastic and PI is thermosetting, but in the present invention, PET or PI can be used so that it can be selected and used if necessary.
That is, since PET is thermoplastic, it can be applied at low temperature, and PI can be applied at high temperature. Thus, if desired, either PET or PI may be used as the substrate and coated on the substrate.
It goes without saying that PVB, EVA or TPU (thermoplastic polyurethane) may be used as the substrate in the present invention.
In the present invention, when a voltage is applied to the
Preferably, the amount and the manufacturing method of the ink should be different from each other so as to generate heat at the respective desired high temperatures, and development should be made for each situation.
As the conductive ink, a silver paste, a carbon paste, a carbon nanotube, a silver nano ink, or the like can be used.
When a silver heating line is used, a silver nano-gel is generated, and then a heating wire is printed on the
The
The heat-generating protective film of the present invention has a heat-shielding function as a main object, but the conductive fabric of the present invention is intended to supplement electromagnetic wave shielding function.
That is, the
In addition, a permalloy layer (not shown) may be further layered on the
Permalloy is an alloy of about 80% nickel and 20% iron. It has excellent magnetic permeability and low loss of magnetic hysteresis. It is easy to work with excellent magnetic material. Be easy
In addition, when a wall is made with permalloy, the outside magnet can not be absorbed into the wall and enter the inside. Conversely, if the magnetic field is blocked by a permalloy wall, the magnetic field can not go out.
The electromagnetic-shielding heat-generating film of the present invention constituted as described above is completed through thermal drying, and a thermal drying temperature of 100 to 200 ° C and a drying time of 1 to 60 minutes are suitable.
Hereinafter, a method of manufacturing a heat generating mat according to an embodiment of the present invention will be described with reference to the drawings.
4 is a flow chart for explaining a method of manufacturing a magnetic wave shielding exothermic film according to the present invention. As shown in FIG. 4, the method for manufacturing an electromagnetic wave shielding exothermic film of the present invention comprises the steps of: And forming a heating plate on the other surface (S200).
The step of forming a heating plate S100 on one side of the substrate includes a step S110 of preparing a
Further, before performing the conductive ink printing step (S120), it may be subjected to a step of producing a conductive ink used for printing.
For example, in order to produce a conductive silver ink, a silver nano gel is first produced and then a conductive silver ink containing a silver nano gel is prepared.
First, silver nano-gel is prepared by dissolving 0.3 g of AgNO 3 in 10 ml of distilled water.
That is, when silver (Ag) having a nanoparticle size is mixed with nitrate (No 3 ), 0.3 g of silver oxide (AgNO 3 ) is dissolved in 10 ml of distilled water to prepare a silver ion aqueous solution.
In the present invention, silver oxide is dissolved in distilled water to prepare an aqueous silver ion solution. However, an aqueous solution of silver oxide (CH 3 COOAg) of silver (Ag) and acetic acid (CH 3 COO) having a nanoparticle size is dissolved in distilled water, Ion aqueous solution.
Next, a polymer binder having at least one selected from a polymeric pyrrolidone, a polymer urethane or a polymeric amide group is added to the prepared silver ion aqueous solution, a dispersant is added thereto to be uniformly dispersed and stirred, and 10% hydrazine ( N 2 H 4 ) aqueous solution was added slowly and stirred for additional 3 hours to prepare a dark green solution.
Thereafter, 20 ml of acetone was added, and the mixture was stirred for 1 minute and then centrifuged at 6000 rpm for 30 minutes using a centrifuge. 0.1 g of diethanol 2,2-azobis was added to the silver precipitate to obtain silver 0.2 g of nano-gel is prepared.
After preparing the silver nanogel as described above, the conductive silver ink containing the silver nanogel is prepared. The conductive paste is dispersed in the solvent at room temperature, and the epoxy, the silver particles and the curing agent are added and stirred, A conductive ink containing a gel is produced.
A roll-to-roll gravure printing method, a rotary screen, a gravure offset, or the like can be used as the heat-generating film of the present invention, but the present invention uses roll-to-roll lamination technology.
The magnetic wave shielding exothermic film of the present invention is printed on a substrate using gravure equipment using a conductive ink. First, a
Ink is first printed on the substrate prepared in step S110 using roll-to-roll gravure using conductive ink to form a heating line on the substrate 110 (S120).
FIG. 5 shows a roll-to-roll gravure printing apparatus. The apparatus for manufacturing a magnetic wave shielding exothermic film according to the present invention comprises a plate-making
A conductive ink printing step (S120) is carried out by UV molding in which a photosensitive agent is coated on the surface of a substrate by a plate-making roller (111) and exposed to UV to form a pattern.
Specifically, an embossed printing mold is manufactured and then bonded to a
More specifically, when the printing mold is provided on the plate-making
The
The conductive ink is applied to the formed negative film through the
A
After the conductive ink printing step (S120), conductive sheets capable of protecting the heating line from the heating line are laminated and laminated (S140) and dried (S150), thereby completing the heating plate on one surface of the substrate.
In the step of drying in step S150, the thermal drying temperature is preferably 100 to 200 DEG C, and the drying time is preferably about 1 to 60 minutes.
In the above-described step S130, an electrode is formed on the heating line printed in the electrode forming step. As described above, the three electrodes of the
It goes without saying that step S150 may also be followed by a drying step after forming a heating plate on both sides of the substrate.
After forming the heating plate on one side of the substrate in steps S110 to S150, a step of forming a heating plate having the same pattern on the other side of the substrate is performed (S200).
That is, when the heating plate is completed on one side of the substrate in step S100, the
The
Since the apparatus for producing a magnetic wave shielding exothermic film according to the present invention is characterized by printing a pattern on both sides thereof, the
Hereinafter, another pattern is printed in the same manner as the above-described method of forming a pattern on one side of the substrate.
That is, a conductive ink printing step by UV-coating is performed (S210 to S220) in which a photosensitive agent is coated on the surface of the substrate to be charged in the reverse direction in the
Specifically, another positive embossed printing mold is fabricated and then joined to the plate-making
Thereafter, electrodes are formed by Cu laminating and plating (S230). Then, a functional film (protective coating, PVB, EVA, TPU or the like) fed from another feeding roller is fed to a press roller The electromagnetic shielding exothermic film of the present invention is manufactured through a conductive fabric laminating step (S240) in which the electrodes are bonded to an upper part of a heating element having electrodes formed thereon.
As described above, in the magnetic wave shielding exothermic film of the present invention, the electric conductivity may vary depending on the kind of the ink and the printing process control. Therefore, in the present invention, the conductive ink may include Ag nano ink, Carbon ink, An aluminum paste or a conductive silver ink may be used. The larger the size of the aluminum particles, the smaller the specific resistance. Therefore, in view of the resistivity, aluminum particles having a large radius can be used. However, if the size of the aluminum particles is large, the surface formed using the large aluminum particles may be porous, so that the aluminum paste preferably includes aluminum particles having an average radius of 5 탆 or less.
On the side, aluminum having a large radius can be used. However, if the size of the aluminum particles is large, the surface formed using the large aluminum particles may be porous, so that the aluminum paste preferably includes aluminum particles having an average radius of 5 탆 or less.
In particular, the aluminum paste is advantageous for use as a heating element because it has a strong resistance to water vapor because it forms a solid barrier against moisture permeability because AL particles form several layers horizontally. A pattern of patterns can be formed.
In other words, it is possible to maintain fine line width through intaglio printing and to print a fine pattern (1 mu m to 5 mu m) having a large area uniformity, so transparency can be maintained without being visually recognized.
In this step, the electrode forming step (S130, S230) and the drying step (S150, S250) may be selectively applied to each step, but the heating plate may be formed on both sides of the substrate, .
In addition, since the magnetic wave shielding exothermic film of the present invention uses a reverse current printing patterning technique, an AC power source must be used for the electrodes.
Thus, by using the reverse current, it is possible to shield the electric wave by effectively shielding the magnetic wave and applying the conductive ink capable of connecting the ground wire such as carbon, silver, and aluminum.
Test results obtained by comparing the magnetic field measurement by the current direction of the heat-generating film produced by the above-described method will be described below.
Table 1 shows the results of measurement of the exothermic film produced in Production Example 1.
Position of electrode is same
Current direction same
In the case of Production Example 1, the measurement was impossible due to the high value of the magnetic field measured at the electrode portion, and the value of 10.67 mG at the measurement of the magnetic field at the center portion was confirmed.
Table 2 shows the results of measurement of the exothermic film produced in Production Example 2.
Reverse electrode direction
Reverse current direction
In the case of Production Example 2, a remarkably reduced value of 0.59 mG and 0.478 mG was observed at the electrode portion and the center at the center of the magnetic field, respectively. Production Example 3 was prepared and measured for further reduction.
Table 3 shows the results of measurement of the exothermic film produced in Production Example 3.
Same as electrode direction
Current direction intersection
In the measurement results of Production Example 3, it can be seen that the magnetic field value at the central portion excluding the electrode portion is almost 0.049 mG.
That is, like the magnetic wave shielding exothermic film of the present invention, a pattern is formed on both sides with reference to a base film, and one side and the other side of the film are overlapped with each other. If the electrodes are made to coincide with the electrodes on both sides, the magnetic field measurement value can be significantly lowered.
The magnetic wave shielding heat-generating film produced by the above-described method can be applied to a vehicle side mirror heater, a vehicle steering wheel, a heating vest, a heating stroller, an autogenous wind power generator, a heating wire insole, a heating film, a bath glass, But also to a printed circuit board such as various electronic apparatuses.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.
110:
112, 112a:
114, 114a: UV irradiator 115: feeding roller
116: take-up roller
117a, 117b, 117c, 117d, 117e: guide rollers
120, 121:
120b:
140: Conductive fabric 150: Web turnba
Claims (26)
The heat-
(a) printing a pattern generated by a power source supplied from the power source unit with a conductive ink on one surface of a substrate;
(b) printing a pattern generated by a power source supplied from the power source unit with a conductive ink on the other surface of the substrate;
Lt; / RTI >
The pattern
A + electrode, a + electrode, and another + electrode are sequentially arranged on one surface of a substrate, a pattern is connected to the opposite surface on the surface on which the + electrode is formed, The first pattern of the closed loop which is repeatedly connected to one end of the "-electrode " and the pattern connected to the other" + electrode " A second pattern is formed so that a current flows in a direction opposite to a flowing current and is connected to the "-electrode" to print the pattern by a reverse current printing patterning technique, Is formed so as to be located at the same position with respect to the substrate in the same direction or in such a manner that the patterns are positioned to cross each other with respect to the substrate.
(c) forming electrodes on a pattern printed on both sides of the substrate;
Wherein the magnetic film is formed of a magnetic material.
The electrode
Wherein the substrate is formed at the same position around the center.
The step (b)
(b-1) supplying a substrate having a pattern formed on one surface thereof in the step (a); and
(b-2) printing a conductive ink on the other surface of the substrate to form a pattern;
Wherein the magnetic film is formed of a magnetic material.
The pattern
A method for manufacturing a magnetic wave shielding exothermic film printed by a roll lolrol gravure printing apparatus.
The roll lureol gravure printing apparatus comprises:
A feeding roller for feeding a substrate in a roll state;
A first plate-making roller for printing a first pattern of engraved on one surface of the substrate supplied from the feeding roller;
A first ink injector for applying conductive ink to the engraved pattern drawn from the first plate making roller;
A second plate-making roller for supplying a substrate drawn out from the first ink injector in an inverted state and printing a second pattern on the other surface of the substrate,
A second ink injector for applying a conductive ink to the engraved pattern drawn out from the second plate making roller;
Wherein the magnetic film is formed of a magnetic material.
The first and second plate making rollers
A magnetic wave shielding heating element having a relief pattern formed by coating a photosensitive agent on a surface of a substrate and performing a cleaning step of removing ultraviolet (UV) light, development and metallization, electroplating and ink remaining on the surface, ≪ / RTI >
The conductive ink
Wherein the conductive silver ink is a conductive silver ink capable of printing a pattern in which an electrical signal including a silver nano gel is energized.
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KR1020150074270A KR101620503B1 (en) | 2015-05-27 | 2015-05-27 | The product method of heating film for electromagnetic shielding |
PCT/KR2016/001896 WO2016190524A1 (en) | 2015-05-27 | 2016-02-26 | Method for manufacturing magnetic wave shield heating film |
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KR1020150074270A KR101620503B1 (en) | 2015-05-27 | 2015-05-27 | The product method of heating film for electromagnetic shielding |
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Cited By (6)
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KR101807649B1 (en) * | 2016-06-17 | 2017-12-12 | (주) 파루 | Plane heater for rice cooker |
KR101817739B1 (en) * | 2016-09-08 | 2018-01-12 | (주) 파루 | Plane heater for bath |
KR101817738B1 (en) * | 2016-09-08 | 2018-01-12 | (주) 파루 | Plane heater for heating cabinet |
KR101817741B1 (en) * | 2016-09-08 | 2018-01-12 | (주) 파루 | Plane heater for washing machine |
WO2017222216A3 (en) * | 2016-06-22 | 2018-02-15 | (주)파루 | Air washer using planar heating element |
KR101930323B1 (en) * | 2016-09-08 | 2018-12-20 | (주) 파루 | Plane heater for camera |
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CN106998598A (en) * | 2017-05-18 | 2017-08-01 | 韩恺 | A kind of intelligent heating body, its preparation method and application |
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KR101272959B1 (en) * | 2012-10-08 | 2013-06-12 | (주) 파루 | Preparing method of transparent heating generator forming a nano pattern using roll to roll gravure printing and transparent heating generator forming a nano pattern using thereof |
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KR0127713Y1 (en) * | 1995-04-24 | 1998-12-15 | 박상복 | Electro-magnetic wave shielding heating sheet |
JPH103982A (en) * | 1996-06-17 | 1998-01-06 | Sharp Corp | Heating element |
KR101143296B1 (en) * | 2009-10-13 | 2012-05-08 | (주) 파루 | Conductivity paste composition of low temperature plasticity for gravure printing |
KR101514353B1 (en) * | 2013-10-08 | 2015-04-22 | (주) 파루 | Heating mat |
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KR101272959B1 (en) * | 2012-10-08 | 2013-06-12 | (주) 파루 | Preparing method of transparent heating generator forming a nano pattern using roll to roll gravure printing and transparent heating generator forming a nano pattern using thereof |
Cited By (8)
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KR101807649B1 (en) * | 2016-06-17 | 2017-12-12 | (주) 파루 | Plane heater for rice cooker |
WO2017217696A1 (en) * | 2016-06-17 | 2017-12-21 | (주)파루 | Planar heating element for rice cooker |
CN109565908A (en) * | 2016-06-17 | 2019-04-02 | 罢漏株式会社 | Electric cooker plane heater |
WO2017222216A3 (en) * | 2016-06-22 | 2018-02-15 | (주)파루 | Air washer using planar heating element |
KR101817739B1 (en) * | 2016-09-08 | 2018-01-12 | (주) 파루 | Plane heater for bath |
KR101817738B1 (en) * | 2016-09-08 | 2018-01-12 | (주) 파루 | Plane heater for heating cabinet |
KR101817741B1 (en) * | 2016-09-08 | 2018-01-12 | (주) 파루 | Plane heater for washing machine |
KR101930323B1 (en) * | 2016-09-08 | 2018-12-20 | (주) 파루 | Plane heater for camera |
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