KR101825641B1 - Solution composite and magnet manufacturing method for three-dimensional patterning - Google Patents

Solution composite and magnet manufacturing method for three-dimensional patterning Download PDF

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KR101825641B1
KR101825641B1 KR1020150151085A KR20150151085A KR101825641B1 KR 101825641 B1 KR101825641 B1 KR 101825641B1 KR 1020150151085 A KR1020150151085 A KR 1020150151085A KR 20150151085 A KR20150151085 A KR 20150151085A KR 101825641 B1 KR101825641 B1 KR 101825641B1
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magnetic
magnet
base material
coating layer
pattern
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KR1020150151085A
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Korean (ko)
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KR20170050049A (en
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김정수
심동렬
최우석
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주식회사 펨스
심동렬
최우석
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0025—Crosslinking or vulcanising agents; including accelerators
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0266—Moulding; Pressing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/01—Magnetic additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

Abstract

An object of the present invention is to provide a method of manufacturing a magnet for stereoscopic patterning, which is used to form a stereoscopic pattern that does not cause eye fatigue by implementing an actual stereoscopic pattern. A method for manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention includes forming a coating layer on a base material or a tile and applying a magnetic force to the coating layer to move the magnetic powder in the coating layer to form a three dimensional pattern by the magnetic powder A method for manufacturing a magnet for stereoscopic patterning, comprising the steps of: extruding a mixed material obtained by mixing neodymium powder, which is a magnetic material, into a soft synthetic resin at an extrusion die at a predetermined temperature to produce a first preform; And a second step of manufacturing a second base material by applying a magnetic field to the second base material by applying an external magnetic field corresponding to magnetic flux density and coercive force of neodymium to the second base material, .

Figure R1020150151085

Description

TECHNICAL FIELD [0001] The present invention relates to a solution composition for a three-dimensional patterning and a method for manufacturing a magnet,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solution composition for stereoscopic patterning and a method of manufacturing a magnet, and more particularly, to a solution composition for a three dimensional patterning used for forming a three-dimensional pattern reducing eye fatigue and a magnet manufacturing method.

Known stereolithography techniques include holograms. Holograms are widely used for counterfeiting because they make light scattering luxurious, but they have high cost, low productivity, and limitations in view angle.

Inexpensive holograms superimpose a light scattering substrate or a transparent resin, thereby inducing scattering of light. However, since the hologram realizes stereoscopic effect by using optical illusion, it increases the eye fatigue, increases the distortion of the pattern according to the viewing angle, and complicates the manufacturing process.

The diffraction grating induces refraction of light in a nano or micro pattern to produce a cubic or spatial sense. The diffraction grating increases the pattern distortion according to the viewing angle, increases the processing cost by the nanopatterning process, and degrades the quality by the micropattern. In recent years, space-time production has been realized by overlapping printing and diffraction gratings, but dizziness is caused by optical illusion.

It is an object of the present invention to provide a solution composition for stereoscopic patterning and a method of manufacturing a magnet, which are used to form a stereoscopic pattern that does not cause eye fatigue by implementing an actual stereoscopic pattern.

The solution composition for a three dimensional patterning according to an embodiment of the present invention is a solution composition for forming a three dimensional pattern by forming a coating layer on a base material or a tile and applying a magnetic force to the coating layer to move the magnetic powder in the coating layer, In the solution composition for patterning, 1 to 5 parts by weight of a dispersant, 1 to 10 parts by weight of a curing agent, 1 to 10 parts by weight of an anti-settling agent, and 1 to 30 parts by weight of a magnetic powder are added as additives in 100 parts by weight of a synthetic resin.

The solution composition for a three dimensional patterning according to an embodiment of the present invention may further include 0.1 to 10% by weight of a nano pigment pigment.

The synthetic resin may include 20 to 80% by weight of an oligomer and 20 to 80% by weight of a monomer.

The magnetic powder may include a magnetic pearl, and the magnetic pearl may have a particle diameter of 500 nm to 100 m.

The curing agent may include a photo-curing type or a thermosetting type.

A method for manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention includes forming a coating layer on a base material or a tile and applying a magnetic force to the coating layer to move the magnetic powder in the coating layer to form a three dimensional pattern by the magnetic powder A method for manufacturing a magnet for stereoscopic patterning, comprising the steps of: extruding a mixed material obtained by mixing neodymium powder, which is a magnetic material, into a soft synthetic resin at an extrusion die at a predetermined temperature to produce a first preform; And a second step of manufacturing a second base material by applying a magnetic field to the second base material by applying an external magnetic field corresponding to magnetic flux density and coercive force of neodymium to the second base material, .

The mixed material may include 100 parts by weight of the epoxy forming the soft synthetic resin and 3-15 parts by weight of the neodymium powder.

The third step can arrange the second base material at a predetermined angle with respect to the direction of the magnetic force lines of the magnetic yokes.

As described above, according to one embodiment of the present invention, a magnet is manufactured by forming a coating layer on a base material or a tile with a solution for a three dimensional patterning, mixing a magnetic material with a soft synthetic resin, and moving the magnetic powder with a controlled magnetic force of the magnet, Can be effectively formed.

Since the stereoscopic pattern is actually realized by the magnetic material included in the solution for three-dimensional patterning, the sheet or tile having the three-dimensional pattern does not cause fatigue of the eyes of the user who sees it.

FIG. 1 is a block diagram of a three dimensional patterning apparatus for forming a three dimensional patterning by applying a solution composition for a three dimensional patterning and a magnet manufactured according to an embodiment of the present invention.
2 is a plan view of the coating portion applied to Fig.
Figure 3 is a partial detail view of the coating bar of Figure 1;
FIG. 4 is a perspective view of a cylindrical magnet roll applied to a magnet manufactured by the method of manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention, which is applied to FIG.
FIG. 5 is a side view of a polymorphic magnet roll to which a magnet manufactured by the method of manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention, which is applied to FIG. 1, is applied.
Fig. 6 is an arrangement view of a magnet for applying a magnet manufactured by a method for manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention, which is applied to a magnet roll.
7 is an arrangement view of the engraved magnets applied to the magnet roll and to which the magnet manufactured by the method for manufacturing a magnet for stereolithography according to an embodiment of the present invention is applied.
FIG. 8 is a photograph of a three-dimensional pattern sheet made of a magnetic roll in which disc-shaped biconvex magnets to which magnets manufactured by the method for manufacturing a three-dimensional patterning magnet according to an embodiment of the present invention are arranged.
9 is a cross-sectional view taken along line IX-IX of Fig.
FIG. 10 is a view illustrating the arrangement of line-shaped biped magnets to which a magnet manufactured by the method of manufacturing a magnet for a three dimensional patterning according to an embodiment of the present invention is applied.
Fig. 11 is a photograph of a three-dimensional pattern sheet made of a magnetic roll in which line-shaped bending magnets of Fig. 10 are arranged.
12 is a flowchart of a method of manufacturing a magnet for three-dimensional patterning according to an embodiment of the present invention.
FIG. 13 is a state diagram of forming a magnetic material on a base material having a pattern. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

FIG. 1 is a configuration diagram of a three dimensional patterning apparatus for forming a three dimensional patterning by applying a solution composition for a three dimensional patterning and a magnet manufactured according to an embodiment of the present invention.

Before describing the solution composition for a three dimensional patterning and the method for manufacturing a magnet according to one embodiment, a three dimensional patterning apparatus for forming a three dimensional patterning by applying a solution composition for a three dimensional patterning and a magnet in one embodiment will be described.

Referring to FIG. 1, a three dimensional patterning apparatus for applying a solution composition for a three dimensional patterning and a magnet manufactured by a magnet manufacturing method according to one embodiment includes an unwinder 10, a coating portion 20, a magnet roll 30, A drying unit 41, a second drying unit 42, and a rewinder 50.

The unwinder 10 continuously supplies the substrate S to be patterned, and the rewinder 50 is configured to collect the substrate S advancing while completing the coating layer. The unwinder 10 and the rewinder 50 can continuously pattern the coating layer having a three-dimensional pattern on the substrate S, thereby minimizing the process cost of manufacturing the three-dimensional pattern sheet.

When the target on which the three-dimensional pattern is formed is a tile, a discharging means for discharging the tile on which the coating layer is formed may be applied, provided with a supply means for supplying tiles without applying the unwinder and the rewinder.

The coating portion 20 forms a coating layer CL1 by coating the substrate S on the advancing substrate with a solution for three-dimensionally patterning, which includes a magnetic powder and a binder which react with a magnetic force. The coating portion 20 has a support roll 25 for supporting the advancing substrate S. For example, the coating portion 20 may be formed of a slot die, a spray nozzle, or a coating bar, not shown.

In one embodiment, the solid patterning solution may have a viscosity of 400 to 5000 cps in the presence of a solvent added to the solids. When the viscosity of the solution for three-dimensionally patterning in one embodiment is less than 400 cps, it is difficult to realize the three-dimensional structure by the magnetic powder, so that it becomes difficult to realize the pattern characteristic. When the viscosity of the solution for three-dimensionally patterning in one embodiment is more than 5000 cps, the mobility of the magnetic powder due to the magnetic force deteriorates the implementation of the pattern characteristic.

Magnetic powder is a fine particle that reacts to magnetic force, and includes, for example, iron powder and magnetic peal. When the magnetic powder is a magnetic bead, the particle size may be 500 nm to 100 탆. When the particle diameter of the magnetic powder exceeds 100 탆, it is sensitive to magnetic force and hard to react, and when it is less than 500 nm, it becomes excessively fine and the price rises.

In addition, the magnetic powder may have a particle diameter of 1 탆 to 100 탆. Considering the sensitivity and price of the magnetic force, the magnetic powder is preferably in the range of 1 탆 to 100 탆. By controlling the magnetic force of the magnet 31, the three-dimensional pattern by the magnetic powder can be variously formed. The magnet 31 has a property of extending outwardly. By controlling this property of the magnetic force, a three-dimensional pattern by the magnetic powder can be formed.

The coating layer CL1 actually forms a three-dimensional pattern on the substrate S by the magnetic powder, and the thickness thereof may be a thin film of 1 to 100 mu m. That is, the coating layer CL1 forms a three-dimensional pattern on the substrate S without significantly increasing the thickness of the substrate S.

The solution composition for a three-dimensional patterning of the first embodiment may be formed in a photo-curing type. The ultraviolet curing type solution composition is prepared by mixing 1 to 5 parts by weight of a dispersing agent, 1 to 10 parts by weight of a curing agent, 1 to 10 parts by weight of an anti-settling agent, 0.1 to 10 parts by weight of a nano pigment pigment, and 1 to 10 parts by weight of a magnetic powder 1 to 30 parts by weight of a magnetic pearl) as an additive, and 10 to 80 parts by weight of a solvent. Nanopigment pigments may optionally be included.

The synthetic resin contains 20 to 80% by weight of an oligomer and 20 to 80% by weight of a monomer, and forms a binder in the coating layer. The oligomer increases the viscosity of the solution and the monomer lowers the viscosity of the solution.

If the oligomer content is less than 20% by weight, the three-dimensional effect of the pattern is deteriorated due to the low viscosity. If the oligomer content exceeds 80% by weight, the pattern stereoscopic effect and coating property are deteriorated due to high viscosity. When the monomer is less than 20% by weight, the pattern stereoscopic effect and coating property are deteriorated due to the high viscosity. If the monomer is more than 80% by weight, the pattern stereoscopic feeling may be lowered due to the low viscosity.

The synthetic resin can be selected depending on the kind of the substrate S and the presence or absence of the adhesion promoter treatment of the substrate. For example, the synthetic resin includes one or more of acryl, epoxy, urethane, polyamide, polyester, silicone, polyvinyl chloride, vinyl, cellulosic and silica series.

The dispersing agent may comprise a composition liquid of a polyester, alkyd or acrylic-melamine component, or may contain one or more of polyurethane, carnitine palmitoyl transferase (CPT), fatty acid or phosphate ester, Dispersed. When the dispersing agent is less than 1% by weight, the dispersing effect of the magnetic powder is not exhibited, and when the dispersing agent is more than 5% by weight, the pattern embedding feeling may be lowered.

The curing agent is used for curing the coating surface upon solution coating on the substrate (S), and can be selected depending on the type of the substrate (S). The curing agent promotes curing of the solution and comprises 1 to 10% by weight of a UV-A reactive photocuring agent, 1 to 10% by weight of a UV-B reactive photocuring agent or 1 to 10% by weight of a UV-C reactive photocuring agent

 If the amount of the curing agent is less than 1% by weight, the coating layer patterned by the solution is not cured. If the amount of the curing agent is more than 10% by weight, curing of the solution becomes excessively rapid (viscosity increases)

The anti-settling agent prevents sedimentation of the magnetic powder from the solution. That is, the anti-settling agent prevents sedimentation of the magnetic powder when the viscosity of the solution is low and increases the thixotropy. For example, the anti-settling agent includes at least one of polyester and polyamide.

When the sedimentation inhibitor is less than 1% by weight, the magnetic powder precipitates. When the sedimentation inhibitor is more than 10% by weight, the viscosity of the solution may be increased and the pattern stereoscopic effect may be lowered.

The nanopigment pigments use nano sized pigments and include at least one of peal, carbon black, cadmium yellow, cadmium red, cobalt blue and chrome green.

Nanopigment pigments embody color in a three-dimensional pattern. When the amount of the nano-pigment pigment is less than 0.1% by weight, it is difficult to realize a hue in the three-dimensional pattern. When the amount of the nano-pigment pigment is more than 10% by weight, the viscosity of the solution may be increased.

The magnetic powder is formed of a material sensitive to magnetic force, and in this embodiment, it is formed of magnetic pearl and forms a substantially three-dimensional pattern in the coating layer.

If the magnetic powder (magnetic pearl) is less than 1% by weight, the lack of magnetic powder leads to insufficient dimensional sensation. If the magnetic powder is more than 30% by weight, excessive amount of magnetic powder may occur and the pattern solidity may be deteriorated.

The magnetic powder substantially constitutes the three-dimensional pattern, and the particle size of the magnetic powder includes the range of 1 mu m to 100 mu m. The size of the particle size of the magnetic powder may be changed depending on the thickness of the coating layer and the pattern design.

The magnetic powder is made of a material which can respond sensitively to the magnetic force of the magnet, and is, for example, a magnetic pearl. Magnetic pearls are made by coating iron oxide with various colors of peal. The magnetic powder may further include other materials capable of reacting to the magnetic force of the magnet in addition to the magnetic pearl.

The solvent is used for controlling the viscosity of the solution for forming the coating layer, improving the coating property, and improving the adhesion with the substrate (S). For example, the solvent includes at least one of toluene, isopropyl alcohol, methyl ethyl ketone, methyl isobutyl ketone, xylene, ethyl acetate, ethyl alcohol and cyclone hexane.

When the solvent is less than 10% by weight, the coating property of the solution is deteriorated by the oligomer of the solution. If the solvent is more than 80% by weight, the lack of viscosity of the solution may lower the pattern stereoscopic effect.

In one example, the coating liquid has a viscosity of 400 cps to 5000 scps. When the viscosity of the coating liquid is less than 400 cps, the magnetic pearl can not move smoothly and sequentially due to the arrangement of the magnets and the magnetic force due to the low point, and the magnetic pearls are concentrated intensively in a strong magnetic field.

When the viscosity of the coating solution is more than 5000 cps, the magnetic pearl can not move according to the arrangement of the magnets and the strength of the magnetic force due to the high viscosity, so that the formation of the three-dimensional pattern may become difficult.

The solution composition for a stereolithography of the second embodiment may be formed into a thermosetting type. The thermosetting type solution composition comprises 1 to 5 parts by weight of a dispersing agent, 1 to 10 parts by weight of a thermosetting type curing agent, 1 to 10 parts by weight of an anti-settling agent, 0.1 to 10 parts by weight of a nano pigment pigment, and 1 to 10 parts by weight of a magnetic powder (For example, magnetic pearl) 1 to 30 parts by weight as an additive, and 10 to 80 parts by weight of a solvent. Nanopigment pigments may optionally be included.

For the sake of convenience, description of the same parts as those of the photo-curing type solution composition in the thermosetting type solution composition will be omitted.

The synthetic resin contains 20 to 80% by weight of an oligomer and 20 to 80% by weight of a monomer, and forms a binder in the coating layer CL1. The synthetic resin is selected according to the kind of the substrate (S) and whether or not the adhesion promoter is treated. For example, the synthetic resin includes at least one of phenol, urea, melamine, urethane, silica and silicon.

The thermosetting type curing agent is used for curing the coating surface when the solution S is coated on the substrate (S). Unlike the light curing type, the thermosetting type curing agent may be used depending on the kind of the synthetic resin and the kind of the substrate and may not be used depending on the kind of the synthetic resin .

Fig. 2 is a plan view of the coating portion applied to Fig. 1, and Fig. 3 is a partial detail view of the coating bar of Fig. Referring to FIGS. 2 and 3, by way of example, the coating portion 20 includes a coating bar 21 and a blade 22.

The coating bar 21 is placed on the advancing substrate S in a width direction and accommodates the solution in the receiving groove 211 provided on the outer surface in a spiral shape inclined with respect to the longitudinal direction, Coating. The blade 22 is disposed on one side of the coating bar 21 and presses the coating bar 21 so that only a set amount of the solution passes through the receiving groove 211 to be coated on the substrate S.

The coating bar 21 is disposed on the substrate S in the width direction (y-axis direction), and the substrate S advances in a direction (x-axis direction) To form a coating layer CL1.

For example, the coating bar 21 has a coating acting portion 212 for coating a solution. Although not shown, the coating bar may be provided on both sides of the coating operation part so as to further include a non-coating operation part which prevents the solution from being coated.

The coating operation part 212 has a concave receiving groove 211 on its outer surface and receives the solution of the first or second embodiment to be coated on the receiving groove 211 to coat the solution on the substrate S while rotating .

It may also be more desirable for the coating bar 21 to be coated with a solution comprising particles, rather than a wire bar formed by winding wire on the bar,

The solution includes particles such as magnetic powder (e.g., magnetic pearls). That is, the wireless bar may trap particles between the bar and the wire, thereby deteriorating the coating property. However, the coating bar 21 formed as a wireless bar does not provide a portion in which the particles contained in the solution are embedded, so that the coating property can be improved.

The coating acting portion 212 of the coating bar 21 may correspond to the arrangement of the magnets 31 provided on the magnet roll 30 in a global manner. The blade 22 is arranged on one side of the coating bar 21 and configured to press the coating action portion 212. The blade 22 is disposed behind the coating bar 21 in the advancing direction (x-axis direction) of the substrate S with respect to the coating bar 21 which is parallel to the coating bar 21 and rotates counterclockwise .

On the other hand, the blade 22 is inclined on the outer surface of the coating bar 21 and the coating acting portion 212 so that the blade 22 is set between the outer surface of the coating acting portion 212 and the corresponding blade 22 G). ≪ / RTI >

The groove G is formed in each of the receiving grooves 211 of the coating acting portion 212 so that the blade 22 is moved in the y-axis direction of the coating acting portion 212, The solution can be supplied continuously in the longitudinal direction (y-axis direction).

The blade 22 is brought into close contact with the outer surface of the coating bar 21 and the coating acting portion 212 to set the gap G between the coating bar 21 and the receiving recess 211 of the coating acting portion 212, Is temporarily stored. The blade 22 feeds the solution corresponding to the volume of the groove G along the receiving groove 211 and scraps the remaining solution exceeding the volume of the groove G. [

The solution filled in the receiving groove 211 by the blading operation of the blade 22 is moved in the helical direction inclined with respect to the longitudinal direction (y axis direction) along the receiving groove 211 by the rotation of the coating bar 21 . Thus, the solution can be coated on the substrate S.

More specifically, the receiving groove 211 of the coating acting portion 212 is formed into a spiral shape inclined with respect to the longitudinal direction (y-axis direction) of the coating bar 21. [ Therefore, the receiving groove 211 is formed in a spiral structure having a first diameter D1 set to be the smallest at the deepest portion and a second diameter D2 set to the greatest at the highest portion.

For example, the coating bar 21 may be formed of stainless steel and may have a receiving groove 211 of 1 to 100 micrometers (H) in diameter on the round bar of the second diameter D2. The second diameter D2 forming the highest part of the receiving groove 211 of the coating bar 21 is formed to be 8 to 25 mm and the first diameter D1 forming the lowest part is formed to be the second diameter D2 D2) by the depth (H).

Therefore, the solution supplied between the coating bar 21 and the blade 22 is guided along the receiving groove 211 of the coating action portion 212. That is, the coating bar 21 forms a coating layer CL1 on the entire surface of the substrate S corresponding to the coating acting portion 212. [

FIG. 4 is a perspective view of a cylindrical magnet roll applied to a magnet manufactured by the method of manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention, which is applied to FIG. 4, the magnetic roll 30 is provided on one side of the substrate S on the way to apply a magnetic force to the coating layer CL1 to move the magnetic powder (for example, magnetic pearl) in the coating layer CL1, And magnets 31 forming a three-dimensional pattern by the powder.

For example, the magnet roll 30 is cylindrical, and the magnets 31 are manufactured by a method for manufacturing a three-dimensional patterning magnet according to an embodiment, Lt; / RTI > Therefore, the magnetic roll 30 can continuously apply the magnetic force of the magnet 31 to the magnetic powder of the coating layer CL1 while continuously rotating as the substrate S proceeds.

The surface of the magnet 31 facing the base material S in the unit pattern has the same polarity. In addition, since the shape of the unit pattern and the intensity of the magnetic force are controlled by the magnets 31, various shapes of the solid pattern P1 similar to or completely different from the unit pattern of the magnets 31 can be implemented in the coating layer CL1 have.

FIG. 5 is a side view of a polymorphic magnet roll to which a magnet manufactured by the method of manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention, which is applied to FIG. 1, is applied. 5, the magnet rolls 230 are formed in a polygonal shape, and the magnets 231 are manufactured by a method for manufacturing a three-dimensional patterning magnet according to an embodiment. Are attached to the outer planes of the prisms.

Accordingly, the magnetic roll 230 can continuously apply the magnetic force of the magnet 231 on one outer surface of the polygonal column to the magnetic powder of the coating layer CL1 while continuously rotating as the substrate S proceeds. Accordingly, the coating layer CL1 forms the solid pattern P1 and the flat portion P2 by the magnetic powder on the substrate S.

Fig. 6 is an arrangement view of a magnet for applying a magnet manufactured by a method for manufacturing a magnet for stereoscopic patterning according to an embodiment of the present invention, which is applied to a magnet roll. Referring to Fig. 6, baffle magnets 31 are applied in the unfolded state of a magnet roll 30 (see Fig. 4 for convenience).

The magnets 31 are formed on the surface of the magnet roll 30 in the form of a disk-like embossing pattern so as to form a three-dimensional shape by the magnetic powder of the coating layer CL1 between the outer periphery of the magnets 31 and other neighboring magnets 31 The thickness of the pattern is thickened.

At this time, the magnets 31 forming the disk-shaped relief pattern have the same polarity on the surface facing the substrate S in the plane, and have polarities different from those of the neighboring other magnets 31. Thus, the four magnets 31 form a strong magnetic force between each of the outermost and neighboring magnets 31.

7 is an arrangement view of the engraved magnets applied to the magnet roll and to which the magnet manufactured by the method for manufacturing a magnet for stereolithography according to an embodiment of the present invention is applied. Referring to Fig. 7, engraved magnets 32 are applied to the unfolded state of the magnet roll 30 (see Fig. 4 for convenience).

The magnets 32 are formed on the surface of the magnet roll 30 in the form of a disk-like engraved pattern so that they are magnetized in the magnetic powder of the coating layer CL1 between the outer periphery of the magnets 32, The thickness of the three-dimensional pattern is increased.

At this time, the magnets 32 forming the disk-shaped engraved pattern have the same polarity on the surface facing the substrate S in the plane, and have polarities different from those of the neighboring other magnets 32. Thus, the four magnets 32 form a strong magnetic force between each of the outermost, center and neighboring other magnets 32.

Referring to FIG. 1 again, the first drying unit 41 firstly dries the coating layer CL1 on the opposite side of the magnet roll 30 with the substrate S running continuously therebetween to form a first dried coating layer CL2.

The second drying unit 42 secondarily dries the first dried coating layer CL2 in the first drying unit 41 to form a second dried coating layer CL3. The second drying unit 42 further includes a support roll 26 for supporting the substrate S and a switching roll 27 for switching the advancing direction. The coating layer CL1 of the substrate S is completed with the coating layers CL2 and CL3 while passing through the first and second drying units 41 and 42. [

For example, the solution composition for stereolithography of the first embodiment may be formed in a photo-curing type. In this case, the first drying unit 41 is formed of an ultraviolet (UV) lamp or an infrared (IR) lamp, and the coating layer CL1 is primarily dried by ultraviolet rays or infrared rays to form a first dried coating layer CL2 ) Can be formed.

In this case, the second drying unit 42 is constructed in the same manner as the first drying unit 41 and can form the second dried coating layer CL3 by drying the coating layer CL2 with ultraviolet rays or infrared rays. At this time, the photo-curing type solution can be effectively dried over the first and second order.

In addition, the solution composition for a three dimensional patterning of the second embodiment may be formed into a thermosetting type. In this case, the first drying unit 41 may be formed of hot air or an oven, and may be formed by first drying the heat-coated layer CL1 to form the first dried coating layer CL2.

In this case, the second drying unit 42 is constructed in the same manner as the first drying unit 41, and can form the second dried coating layer CL3 by drying the coating layer CL2 with the heat. At this time, the thermosetting type solution can be effectively dried in one or two stages.

In addition, while the magnetic powder of the coating layer CL1 is stereoscopically patterned by the magnets 31 manufactured by the method for manufacturing a three-dimensionally patterned magnet according to an embodiment of the present invention, the first drying unit 41 may apply ultraviolet rays or infrared rays to the coating layer CL1 may be rapidly dried to form a first dried coating layer CL2 and the second drying portion 42 may be dried secondarily to form a completely dried coating layer CL3. As described above, the first and second drying units 41 and 42 can be operated in various combinations according to the characteristics of the solution.

FIG. 8 is a photograph of a three-dimensional pattern sheet made of a magnetic roll in which disc-shaped biconvex magnets using magnets manufactured by the method for manufacturing a three dimensional patterning magnet according to an embodiment of the present invention are arranged, FIG. 9 is a cross- Sectional view taken along the line IX.

Referring to Figs. 8 and 9, there is illustrated a three-dimensional pattern sheet 100 manufactured by applying the magnets 31 forming the disk-shaped relief pattern of Fig. 6 to the magnet roll 30. Fig.

The three-dimensional pattern sheet 100 includes coating layers CL1, CL2 and CL3 having a three-dimensional pattern P1 and a flat portion P2 on a base material S fed in a continuous process. The coating layers CL1, CL2, and CL3 are formed by coating and drying a solution composition for three-dimensional patterning of one embodiment including magnetic powder, a binder, and an additive that are responsive to a magnetic force.

Since the three-dimensional pattern P1 is formed of magnetic powder, the magnet 31 of the disk-shaped positive pattern forms a pattern of the outer periphery (the solid pattern P11) of the magnets 31 in which a strong magnetic force is formed, (The three-dimensional pattern P12) between the first and second electrodes 31 and 31. That is, the three-dimensional pattern P1 (P11, P12) is formed of magnetic powder which moves in the coating layer CL1 by applying a magnetic force of the magnets 31 to the coating layer CL1 before drying.

The flat part P2 is formed of a binder and additives contained in the solution composition for a three dimensional patterning of the embodiment to form the flatness set on the three-dimensional pattern P1 (P11, P12) . That is, the flat part P2 is formed of a binder and an additive at the upper part of the three-dimensional pattern P1 (P11, P12) to fill the empty space above the three-dimensional pattern P1 (P11, P12).

As described above, the three-dimensional pattern sheet 100 of one embodiment stacks up the magnetic powder using the magnetic force of the magnets 31 manufactured by the method for manufacturing a three-dimensionally patterned magnet according to one embodiment, Dimensional shape (P1, P12, P12) is formed by a step or a step difference to realize a volume feeling, a cubic feeling and a space feeling, so that the fatigue of a user's eyes can be remarkably lower than other stereoscopic patterns using an illusion phenomenon.

FIG. 10 is a state in which line-shaped biped magnets to which a magnet manufactured by the method for manufacturing a three-dimensionally patterned magnet according to an embodiment of the present invention is arranged. FIG. 11 is a cross- And is a photograph of the produced three-dimensional pattern sheet.

10 and 11, magnets 33 manufactured by the method for manufacturing a three-dimensionally patterned magnet according to an embodiment are formed in a line-shaped positive pattern on the surface of the magnet roll 30, The thickness of the three-dimensional pattern formed by the magnetic powder between the other magnets 33 is made thick.

The magnets 33 are disposed diagonally at the intersections of the horizontal magnets 331 and the vertical magnets 332 and the horizontal and vertical magnets 331 and 332 which are cross- (333).

The magnets 33 have an arrangement set on the surface of the magnet roll 30 and gradually decrease the strength of the magnetic force while moving away from the portion corresponding to the magnets 33 and the corresponding portion between the magnets 33 do.

In the three-dimensional pattern sheet 200, the coating layer CL21 is gradually changed in thickness according to the arrangement of the magnets 33. [ 10 and 11, the polarities of the horizontal and vertical magnets 331 and 332 and the polarities of the horizontal and vertical magnets 331 and 332 and the polarities of the separating magnets 333, The magnetic powder of the coating layer CL21 is concentrated more and the magnetic powder is decreased at the portion far from the corresponding portion.

That is, the three-dimensional pattern sheet 200 has a shape that is different from the arrangement of the horizontal, vertical, and separating magnets 331, 332, and 333 according to the horizontal, vertical, and separating magnets 331, 332, and 333, And the coating layer CL21 having the flat portion P22 is formed.

On the other hand, the substrate S used in one embodiment is formed of a transparent or opaque synthetic resin sheet (for example, PET, PVC, PP, PE, PS, EVA, ABS or the like), and the solution composition for three- Nanopigment pigment components. In this case, the three-dimensional pattern sheet 100 can have a color simultaneously with the three-dimensional pattern P1.

The pattern and the pattern provided on the object and the three-dimensional pattern P21 of the three-dimensional pattern sheet 200 are not interfered with each other when the three-dimensional pattern sheet 200 of the transparent substrate S is attached to the object (not shown) Can coexist.

In addition, when the three-dimensional pattern sheet 200 including the nano pigment pigment is attached to a specific object (not shown), the object may not be painted with a special color. That is, since the addition amount of the nano pigment pigment is changed in the solution, the three-dimensional pattern sheet may cause interference with the background of the object.

That is, if the amount of the nanopigment pigment added increases, interference between the three-dimensional pattern sheet and the background of the object becomes large, and if the amount of the nanopigment pigment added is small, interference between the three-dimensional pattern sheet and the background of the object can be reduced.

On the other hand, a method of manufacturing a three-dimensional pattern sheet using a transparent substrate or a method of manufacturing a three-dimensional patterning magnet used for forming a three-dimensional pattern on a tile, and a method of manufacturing the magnet will be described in detail.

12 is a flowchart of a method of manufacturing a magnet for three-dimensional patterning according to an embodiment of the present invention. Referring to FIG. 12, a method for manufacturing a three-dimensional patterning magnet according to an embodiment includes a first step ST1 of manufacturing a first base material, a second step ST2 of manufacturing a second base material using the first base material, And a third step (ST3) of manufacturing the third base material by using the base material.

In the first step ST1, a mixed material obtained by mixing neodymium powder, which is a magnetic material, with a soft synthetic resin (for example, epoxy) is extruded through an extrusion die at a predetermined temperature (for example, about 80 degrees) .

The mixed material includes 3 to 15 parts by weight of neodium powder in 100 parts by weight of epoxy. If the content of neodymium exceeds 15 parts by weight, the magnetic flux density (Br) value increases and a strong magnetic field can be formed, but the workability is deteriorated and it becomes impossible to express fine resolution. If the amount of the neodymium component is less than 3 parts by weight, the magnetic force becomes weak, and the alignment of the magnetic powder responsive to the magnetism may become unstable.

In the first step ST1, ultrasonic waves of a predetermined frequency (for example, 1 MHz) are applied when the first preform is produced by extrusion. When manufacturing the first base material, the applied ultrasonic waves act between the epoxy component and the neodium component of the blend material to make the density of the first base material produced in the blend material uniform.

The second step ST2 processes the first base material made of the mixed material into a second base material having a predetermined pattern (including the outer shape). The second step ST2 can process the planar and plate-like outlines of the plate-shaped first base material into a predetermined pattern.

In the second step, the first base material is processed into a shape and pattern set by a laser cutting, a CNC (Computerized Numerical Control) lathe, a pressing method, or the like to produce a second base material. When the pattern of the second base material is irregular, operation by laser cutting with the CNC lathe may be advantageous.

FIG. 13 is a state diagram of forming a magnetic material on a base material having a pattern. FIG. Referring to FIG. 13, in a third step ST3, a magnetic field is formed on the patterned second base material M to form a third base material.

For example, the magnetic yoke Y and the discharging device (not shown) are used for forming the magnetic field of the second base material M, and magnetic fluxes Apply density (B) and coercive force (H). The magnetic yoke Y and the discharge device apply an external magnetic field corresponding to the magnetic flux density B and the coercive force H characteristics, which are intrinsic properties of neodymium, to the second base material M.

The discharging device is an instantaneous discharging device for discharging current to the magnetic yoke Y and discharges a current of about 10,000 A at a maximum of several ms or less. As an example, an oil condenser is used as a discharge device, and the capacity of the oil condenser is 500 to 1000 V and 1000 to 2000 kV.

The current charged in the oil condenser dissipates magnetism through the SCR (Silicon Controlled Rectifier) discharge and the solenoid coil, and magnetic field shaping is completed when the second base material (M) is placed on the magnetic yoke (Y).

When the magnetic field is formed on the second base material M in the third step ST3, the second base material M has angles? 1 to? 2 (for example,? 1 to? 2) set with respect to the direction of the magnetic force lines of the magnetic yoke Y, 10 to 70 degrees).

In this case, the magnetic force lines represented by neodymium, which is a magnetic material contained in the second base material M, are twisted by angles? 1 to? 2 placed on the magnetic yoke Y. Therefore, the three-dimensional pattern by the magnetic powder in the base material S can be expressed more stereoscopically.

When the angle? 1 of the second base material M is less than 10 degrees, the three-dimensional representation of the three-dimensional pattern by the magnetic powder in the base material S becomes weak and the angle? 2 of the second base material M exceeds 70 degrees , The magnetic field can be weakly formed on the second base material (M)

When an iron plate (not shown) is placed on the second base material M when the magnetic field is formed on the second base material M, the magnetic saturation of the neodymium as the magnetic material contained in the second base material M is further promoted .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

10: unwinder 20: coating part
21: coating bar 22: blade
25, 26: support roll 27: switching roll
30, 230: magnetic rolls 31, 231, 32, 33: magnets
41, 42: first and second drying units 50: rewinder
100, 200: three-dimensional pattern sheet 211: receiving groove
212: Coating acting portion 331, 332: Horizontal and vertical magnets
333: Separation magnets CL1, CL2, CL21, CL3: Coating layer
D1: first diameter D2: second diameter
G: Groove H: Depth
M: second base material P1, P11, P12, P21: three-dimensional pattern
P2, P22: flat part S: substrate
Y: magnetic yoke? 1,? 2: angle

Claims (8)

delete delete delete delete delete A magnet roller is provided on a magnet roll to form a coating layer on a base material or a tile and to apply a magnetic force to the coating layer to move a magnetic powder inside the coating layer to form a three dimensional pattern by the magnetic powder, A method of manufacturing a magnet for stereoscopic patterning,
A first step of preparing a first base material by extruding a mixed material obtained by mixing neodymium powder, which is a magnetic material, with a soft synthetic resin, at an extrusion die at a predetermined temperature;
A second step of fabricating a second base material by processing a pattern set on the first base material; And
A third step of applying an external magnetic field corresponding to magnetic flux density and coercive force of neodymium to the second preform and molding a magnetic field in the second preform to manufacture a third preform
/ RTI >
The first step
An ultrasonic wave having a frequency set in the mixed material is applied when the first preform is manufactured by an extrusion process,
In the third step,
The second base material is disposed at an angle of 10 to 70 degrees with respect to the direction of the magnetic force lines of the magnetic yokes,
And placing an iron plate on the second base material. The method according to claim 6,
The mixed material
100 parts by weight of epoxy forming the soft synthetic resin and 3-15 parts by weight of the neodymium powder. delete
KR1020150151085A 2015-10-29 2015-10-29 Solution composite and magnet manufacturing method for three-dimensional patterning KR101825641B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000140936A (en) * 1998-11-11 2000-05-23 Bridgestone Corp Extrusion molding method for resin molding
JP2001319523A (en) 2000-05-10 2001-11-16 Jsr Corp Conductive paste composition
JP2004055992A (en) * 2002-07-23 2004-02-19 Nichia Chem Ind Ltd Sheet-shaped resin magnet
KR101113655B1 (en) * 2008-11-10 2012-03-14 현대자동차주식회사 Coating method of having been magnetic cubic shape pattern of paint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000140936A (en) * 1998-11-11 2000-05-23 Bridgestone Corp Extrusion molding method for resin molding
JP2001319523A (en) 2000-05-10 2001-11-16 Jsr Corp Conductive paste composition
JP2004055992A (en) * 2002-07-23 2004-02-19 Nichia Chem Ind Ltd Sheet-shaped resin magnet
KR101113655B1 (en) * 2008-11-10 2012-03-14 현대자동차주식회사 Coating method of having been magnetic cubic shape pattern of paint

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