JP4872778B2 - Substrate surface treatment method - Google Patents

Description

The present invention relates to a method of surface treatment of substrates, particularly to a surface treatment method of the functionality imparted substrate.

Conventionally, as a building material used indoors and outdoors, many functional materials imparted with antibacterial property, antifungal property, antifouling property and the like have been used.
Such functional materials can be molded by mixing functional agents such as antibacterial agents and fungicides with resin materials, etc., or by surface treatment on various base materials and building materials. As described above, by applying a paint containing a functional agent, or by sticking a decorative sheet to which a functional agent has been added to the base material, functionality has been imparted to the surface portion.

For example, Patent Document 1 below proposes a decorative sheet used for imparting antibacterial performance to various base materials.
This is a thermoplastic resin sheet, printing layer, adhesive layer, ethylene-vinyl alcohol copolymer (EVOH) film laminated in this order, embossed on the surface of the EVOH film that becomes the surface layer The embossed pattern is filled with ink added with an antibacterial agent by a wiping process to impart antibacterial properties to the decorative sheet.

In this case, antibacterial performance can be imparted to various substrates by sticking the decorative sheet to the surfaces of various substrates. However, since the ink to which the antibacterial agent is added is filled in the recesses of the embossed pattern by wiping, the ink is applied in addition to the recesses, and a wiping operation is required. For this reason, ink is wasted and a wiping work process is required.
In addition, since the concave portion is filled with ink containing an antibacterial agent, the functionality imparted to the surface of the decorative sheet is expected to last to some extent, but the surface layer is made of an ethylene-vinyl alcohol copolymer (EVOH). ) Since it is made of a film, for example, when it is used in a place where there is a possibility of wear such as flooring, there is a possibility that scratches or castor scratches may occur.

In the following Patent Document 2, a floor material having surface strength and durability is proposed to solve the above-described problems.
This is a flooring in which a base coat layer, a picture layer and a protective layer are laminated in this order on a substrate, and the protective layer is an antibacterial agent for imparting functionality to the surface of the flooring, etc. In order to impart abrasion resistance to the functional agent and the surface of the flooring material, hard particles such as alumina are added as a lubricant.
Japanese Patent Laid-Open No. 10-119197 (see FIG. 2) JP 2002-38698 A (see FIG. 1)

However, in the flooring described in Patent Document 2, since the protective layer that is the outermost surface of the flooring is formed by adding a functional agent and hard particles, either one of the performance (functionality, abrasion resistance) In order to improve (wearability), it is possible to increase the addition amount of either one. In that case, it is necessary to reduce the amount of the other additive due to problems such as curability and adhesiveness. Therefore, control for improving the performance of either one has not been easy.
Further, since the protective layer is formed on the entire surface of the substrate by the spray coating method, both the functional agent and the hard particles are exposed on the entire surface. Therefore, the effect of functionality due to the functional agent exposed on the surface, and the wear resistance due to the addition of hard particles are the same in any part of the surface of the flooring, for example, depending on the part of the flooring It has been difficult to change the durability of functionality by the agent and to change the wear resistance.

The present invention has been proposed in order to solve the above-mentioned problems, and its purpose is to adjust the durability of the functionality and surface strength of the surface portion of the base material using surface treatment by inkjet coating. An object of the present invention is to provide a novel substrate surface treatment method that can be used.

In order to achieve the above object, the surface treatment method for a substrate according to claim 1 is characterized in that the surface portion of the substrate is provided with functionality by adding a functional agent to the surface portion of the substrate by an inkjet coating spraying device. A hard convex pattern is formed by ejecting ink so that a part is exposed.

  According to a second aspect of the present invention, in the first aspect, the ink is an ultraviolet curable ink.

  A third aspect of the present invention provides the ink according to the first or second aspect, wherein hard particles such as silica, alumina, and zircon are added to the ink.

  A fourth aspect of the present invention provides the ink according to any one of the first to third aspects, wherein a colorant is added to the ink.

  In Claim 5, in any one of Claims 1 thru | or 4, the said functional agent is at least one of antiseptic | preservative, an antibacterial agent, a deodorant, an insecticide, a water repellent, a hydrophilic agent, and a photocatalyst. is there.

According to this invention of Claims 1 thru | or 5, it is so that a part of said surface part may be exposed by the inkjet coating injection apparatus on the surface part of the base material which added the functional agent and was provided with functionality. Since the hard convex pattern is formed by ejecting ink and the surface treatment of the substrate is performed , the functional sustainability of the functional agent is controlled by controlling the hard convex pattern and the amount of ink ejected. The surface strength can be easily controlled by controlling the exposure amount and the coating amount of the surface portion. Thereby, for example, according to the location where the functional material is applied or the location of the surface, it is possible to vary and set the sustainability of the functionality and the surface strength of the surface portion.
In particular, since the ink is ejected by the ink jet coating ejecting apparatus to form the hard convex pattern, fine control and control in units of microns are possible.
Moreover, since a hard convex pattern is formed in the surface part of a base material, the surface part of the base material to which functionality was provided can be protected . That is, since there is a surface portion of the base material having functionality between the convex portions of the hard convex pattern formed by the ink, contact with the surface portion of the base material to which functionality is imparted Can be prevented. Thus, the wear resistance of the surface of the surface treatment performed substrates, scratch resistance, it is possible to improve the resistance to caster resistance can prevent the direct contact to the functional agent, excellent in safety groups This is a surface treatment method for a material .

  According to the second aspect of the present invention, since the ink is an ultraviolet curable ink, it is possible to easily form a hard convex pattern by irradiating ultraviolet rays to form an ink having a quick drying property and a fast curing property.

  In claim 3, since hard particles such as silica, alumina, and zircon are added to the ink, the hardness of the hard convex pattern formed on the surface portion of the substrate is further improved, and the hard convex pattern is worn. Can be prevented. Thereby, the abrasion resistance, scratch resistance, and caster resistance of the surface of the functional material are more effectively improved.

According to a fourth aspect of the present invention, since a colorant is added to the ink, the surface portion of the base material is protected by the formation of a hard convex pattern, and the functional material is colored or patterned.
In particular, as described above, since the ink is ejected by the ink jet coating ejecting apparatus to form the hard convex pattern, it is possible to print a complicated and fine pattern, and the functional material is excellent in design.

  In claim 5, since the functional agent is at least one of an antiseptic, an antibacterial agent, a deodorant, an insect repellent, a water repellent, a hydrophilic agent, and a photocatalyst, a group provided with various functionalities. The surface portion of the material can be protected, and it becomes a highly functional functional material.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 3 show an example of an embodiment of a functional material according to the present invention, FIG. 1A is a schematic plan view of the functional material, and FIG. 1B is an enlarged view of a Z portion in FIG. FIG. 2 is a schematic cross-sectional view, FIG. 2 is a block diagram showing an example of a functional material manufacturing apparatus according to the embodiment, and FIG. 3 is a schematic plan view for explaining a manufacturing process of the functional material according to the embodiment. is there.

As shown in FIG. 1, the functional material 10 of the present embodiment is a surface of a base material 13 provided with functionality by forming a functional coating layer 12 on the surface of a core material 11 made of a wooden board or the like. It is set as the structure which formed the hard convex pattern 14 in the part 13a by the inkjet coating injection unit 21 mentioned later.
Construction sites where this functional material 10 is used can be used for interior and exterior of buildings, for example, doors, floors, stairs, fences, pillars, handrails, shelves, kitchen panels, ceilings, various types It is suitable for furniture cabinets, top plates, inner walls, outer walls, roofs, and the like.

  Examples of the wood board applied to the core material 11 include laminated wood, plywood, particle board, wood fiber board, and the like. Furthermore, as the core material 11, synthetic resin materials such as plastics other than these wood-based materials, bricks, roof tiles, ceramics, cement-based ceramics materials containing cement as a main component and reinforcing fibers and inorganic fillers, etc. Alternatively, a metal material or the like may be used as the core material 11. Further, the shape of the core material 11 is not limited to the plate shape as shown in the figure, and may be various shapes such as a prismatic shape, a columnar shape, and a conical shape.

The functional coating layer 12 is formed by applying a functional agent-containing ink (paint) containing a functional agent by various printing methods.
Any printing method may be used for forming the functional coating layer 12, and examples thereof include gravure printing, flexographic printing, offset printing, and inkjet printing. The functional agent-containing ink can be appropriately selected according to various printing methods, but preferably has a configuration that does not impair the performance of the functional agent contained, and at least has weather resistance and water resistance. .

  Examples of the functional agent contained in the functional coating layer 12 include antiseptics, antibacterial agents, deodorants, insect repellents, water repellents, hydrophilic agents, and photocatalysts, and one of these is contained. It is good also as a thing containing 2 or more types. Examples of preservatives include parabens and sorbic acid. Examples of the antibacterial agent and deodorant include silver. Examples of insect repellents include paradichlorobenzene and naphthalene. Examples of the water repellent include a fluorine-based filler and silicone, and examples of the hydrophilic agent include silica sol. Examples of the photocatalyst include titanium oxide, zinc oxide, strontium titanate, tungsten trioxide, ferric oxide, bismuth trioxide, and tin oxide.

Such a functional agent may be dissolved in ink containing the functional agent to become a liquid, or particles dispersed in the ink, depending on the physical properties. Moreover, although the compounding quantity changes with functional agents, what is necessary is just to be 0.1 weight%-20 weight%.
In addition, when dispersing particles in a solvent, those having a particle diameter of several nm to several μm are preferable as the particles to be used, and it is preferable to appropriately mix a known dispersion medium so that precipitation or the like does not occur.
Moreover, the mixing ratio of each constituent material of the functional agent-containing ink can be appropriately selected according to the printing method, the physical properties of the core material 11, the construction location, the resin and solvent contained in the ink, and the physical properties of the functional agent. .
Further, as will be described later, when the functional agent-containing ink forms a pattern by forming the hard convex pattern 14 by the ink jet coating jetting unit 21, the hard convex pattern 14 to be described later jetted from the ink jet coating jetting unit 21 is used. The receiving layer for fixing the ink for forming is preferably a white background.

Next, an example of an apparatus and a process for manufacturing the functional material 10 by performing a surface treatment on the surface portion 13a of the base member 13 configured as described above will be described with reference to FIGS.
The functional material manufacturing apparatus A in the illustrated example includes a base 20 on which the base material 13 having the above-described configuration is placed, an inkjet coating jetting unit 21 that jets ink for forming a hard convex pattern 14 to be described later, An ultraviolet irradiation unit 26 and a control unit 30 are provided.

  The base 20 is formed in accordance with the shape and size of the base material 13, and the base material 13 is directed toward the white arrow Y direction (longitudinal direction of the base 20) by the base material transport unit 20 a to perform ink jetting. The substrate 13 is transported in conjunction with ink ejection by the coating ejection unit 21.

The inkjet paint injection unit 21 includes an apparatus main body 22 disposed adjacent to the base 20, and a nozzle head guide rod 24 that is connected to the apparatus main body 22 and guides the nozzle head 25.
The nozzle head guide rod 24 is supported by the device main body 22 and a guide rod support portion 23 arranged to face the device main body 22 with the base 20 interposed therebetween.
The nozzle head 25 is configured to be movable in the white arrow X direction (the width direction of the base 20) along the nozzle head guide rod 24, and has a plurality of injection nozzles (not shown) on the back surface. is doing.
The movement of the nozzle head 25 in the X direction is performed by the nozzle head driving means 22a. That is, the nozzle head 25 is configured to be movable in the X and Y directions by the nozzle head driving means 22a and the base material transport means 20a with respect to the base material 13 placed on the base 20, and is described later. In order to form the convex pattern 14, fine control is possible.

The diameter of the ejection nozzle of the ejection nozzle is preferably about 5 μm to 1.0 mm, or the diameter of the dot when the ink described below is ejected and landed is about 10 μm to 2.0 mm. preferable.
The inkjet nozzle driving method for ejecting ink described later from the ejection nozzle is not particularly limited, and a known one may be appropriately selected according to the physical properties of the surface portion 13a of the substrate 13, the physical properties of the ink described later, and the like. Any one of a drop-on-demand piezo method, a drop-on-demand valve method, a continuous charge deflection method, and the like can be applied.

In this embodiment, as the ink ejected from the ejection nozzle, an ultraviolet curable ink having a property of being cured when irradiated with ultraviolet rays is applied.
As the ultraviolet curable ink, a known ultraviolet curable ink can be applied, and at least a colorant such as a polymerizable compound (such as a radical polymerizable compound or a cationic polymerizable compound), a photoinitiator, a pigment or a dye. It is good also as what contained the hard particle | grains mentioned later to the ink which consists of.
In addition, as the ink color to be applied, in the case where the pattern is formed by forming the hard convex pattern 14 as in this embodiment, the functional coating layer 12 is, for example, a white background as the receiving layer as described above. If it is, ink of black, yellow, magenta, cyan, etc. is applied, but if the color of the functional coating layer 12 is different, or if the substrate does not need to form the functional coating layer 12, That is, when the base material itself contains a functional agent, it can be appropriately selected according to the color of the functional coating layer 12 and the surface color of the base material.

Examples of the hard particles added to the ultraviolet curable ink include silica, alumina, and zircon. These hard particles are dispersed and mixed in the ultraviolet curable ink.
The particle size of these hard particles can be appropriately selected according to the diameter of the ejection nozzle of the nozzle head 25, the nozzle driving method, the physical properties of the ink, etc., but is preferably about 20 nm to 100 μm. Further, it is preferable to mix a known dispersion medium with the ultraviolet curable ink as appropriate so that the hard particles to be dispersed and mixed do not precipitate.
The hard particles are not limited to those described above as long as they can improve the wear resistance of the hard convex pattern 14 formed by curing the ultraviolet curable ink, and any hard particles may be used. .

The ultraviolet irradiation unit 26 is located on the downstream side of the inkjet coating injection unit 21 in the substrate transport direction, and the apparatus main body 27 disposed adjacent to the base 20 and the apparatus main body 27 across the base 20. The apparatus includes a support unit 28 disposed opposite to the apparatus, and an apparatus main body 27 and an ultraviolet light source 29 supported and installed on the support unit 28.
In addition, as the ultraviolet light source 29, for example, a high pressure mercury lamp, a low pressure mercury lamp, a metal hydride lamp, a hot cathode tube, a cold cathode tube, a semiconductor laser, an excimer lamp, an LED, and the like can be applied. A known ultraviolet light source can be applied.

  The control unit 30 includes a CPU 31 constituting a control means for controlling various devices and units, an operation means 32 for performing various operations, a storage means 33 for storing a control program, pattern data of the hard convex pattern 14, image data, and the like. have.

Next, the process of manufacturing the functional material 10 by subjecting the base material 13 to surface treatment using the functional material manufacturing apparatus A having the above-described configuration will be described.
The ultraviolet curable ink is ejected to the surface portion 13a of the base material 13 on which the functional coating layer 12 has been formed and the functionality is imparted by driving and controlling the inkjet coating jet unit 21 and the base material transport means 20a.
At this time, if the ultraviolet curable ink is sprayed on the entire surface of the surface portion 13a, the functionality of the base material 13 is hindered, so that the ejection control is performed so that a part of the surface portion 13a is exposed. The exposure amount of the surface portion 13a will be described later.

Next, the ejected ultraviolet curable ink reaches the lower side of the ultraviolet light source 29 of the ultraviolet irradiation unit 26 located on the downstream side of the inkjet coating ejection unit 21 as the substrate 13 is conveyed by the substrate conveying means 20a. Drys and hardens when irradiated with ultraviolet rays.
As shown in FIG. 1B, the cured UV curable ink becomes a plurality of minute convex portions 14a and 14b each having a predetermined color, and the hard convex pattern 14 is formed by these. The That is, each of the dried and hardened convex portions 14a and 14b is not continuous, and has a configuration in which a part of the surface portion 13a of the base material 13 is exposed with a gap therebetween. Note that the number of droplets of the ultraviolet curable ink ejected from the nozzle head 25 may be a plurality of droplets in order to form each of the minute convex portions 14a and 14b.

Since the minute convex portions 14a and 14b constituting the formed hard convex pattern 14 and the surface portion 13a exposed between them are minute ones in a micron unit, as in this embodiment, ultraviolet rays are used. The hard convex pattern 14 formed by adding a colorant to the curable ink and having a plurality of convex portions 14a and 14b having a predetermined color is a woodgrain pattern.
In addition, each magnitude | size (particle diameter) of convex part 14a, 14b and the magnitude | size (width) of the surface part 13a exposed between them do not inhibit the visibility of the pattern by formation of the hard convex pattern 14 Can be selected as appropriate, and may be, for example, about 10 μm to 1.0 mm.
Further, the protrusion height of each of the convex portions 14a and 14b and the size (width) of the surface portion 13a exposed between them are such that a householder or an object does not directly contact the surface portion 13a of the base material 13. What is necessary is just to make it height and width, and the expansion (size) of each convex part 14a, 14b to the plane direction is the nozzle head 25 (refer FIG. 3) like convex part 14Bb demonstrated in 3rd Embodiment mentioned later. The plurality of ultraviolet curable ink droplets ejected from the substrate may be cured to have a planar continuous spread.

Further, in FIG. 1B, the hard convex pattern 14 is formed in a satin-like shape with the convex portions 14a and 14b evenly interspersed with a certain gap so that the surface portion 13a is exposed. The gap formed between the convex portions 14a and 14b is not constant and may be random. Further, the convex portions 14a and 14b may be formed in a lattice shape or a convex strip instead of being scattered.
Further, in the present embodiment, the pattern by the hard convex pattern 14 is a wood grain pattern, but is not limited to this, and may be any pattern such as a stone pattern, a texture pattern, an abstract pattern, a geometric figure, a character, or a symbol. .
The base material 13 on which the hard convex pattern 14 is formed becomes the functional material 10 and is transported toward the next process by driving the base material transport means 20a.

As is clear from the above, the functional material 10 according to the present embodiment ejects ultraviolet curable ink onto the surface portion 13a of the base material 13 provided with functionality by the ink jet coating ejection unit 21. Since the hard convex pattern 14 is formed on the surface portion 13a, by controlling the ejection amount of the hard convex pattern 14 and the ultraviolet curable ink, it is possible to control the sustainability of the functionality of the functional agent and the surface strength. This can be easily achieved by controlling the exposure amount of the surface portion 13a and the coating amount of the surface portion 13a. That is, when it is desired to increase the surface strength of the functional material 10, it can be easily achieved by increasing the coverage of the surface portion 13 a by forming the hard convex pattern 14, while the function of the functional material 10 is provided. When it is desired to improve the property, the hard convex pattern 14 may be formed so that the exposed amount of the surface portion 13a is increased. Further, by appropriately setting the exposure amount and the coating amount of the surface portion 13a, it is possible to easily control the sustainability of the functionality of the functional material 10. Furthermore, it becomes possible to control the functionality and the surface strength according to the construction location where the functional material 10 is used, and the marketability is excellent.
In particular, since the hard convex pattern 14 is formed by ejecting the ultraviolet curable ink by the ink jet coating ejection unit 21, fine control and control in units of microns can be performed.

  Moreover, since the hard convex pattern 14 is formed by jetting ultraviolet curable ink, the surface portion 13a of the base material 13 to which functionality is imparted is protected. That is, since the functional surface portion 13a exists between the convex portions 14a and 14b of the hard convex pattern 14 formed of the ultraviolet curable ink, the surface portion 13a to which the functionality is imparted is provided. Contact can be prevented. As a result, the wear resistance, scratch resistance, and caster resistance of the surface of the functional material 10 are improved, and direct contact with the functional agent can be prevented, so that the functional material 10 is excellent in safety.

  In particular, in the present embodiment, since the ink ejected to form the hard convex pattern 14 is an ultraviolet curable ink, the hard convex pattern is obtained by irradiating the ultraviolet rays to form a hard ink having quick drying properties and fast curing properties. 14 can be formed easily. Further, since hard particles such as silica, alumina, zircon and the like are added to the ultraviolet curable ink, the hardness of the hard convex pattern 14 formed on the surface portion 13a of the substrate 13 is further improved, and the hard convex pattern. 14 can be prevented, and thereby the wear resistance, scratch resistance, and caster resistance of the surface of the functional material 10 can be improved more effectively.

  In the present embodiment, the ultraviolet curable ink in which hard particles are dispersed is applied as the ink ejected to form the hard pattern 14, but the present invention is not limited to this, and the hard particles may not be dispersed. Good. In addition, known ink-jet inks, for example, quick-drying inks using methyl ethyl ketone, ethanol, acetone or the like as a solvent, oil-based oil-based inks, water-based inks, and the like, can be applied and become hard when dried and cured. Any material may be used as long as it contains a hard resin such as acrylic, methacrylic, urethane, or fluorine, or may be hardened by adjusting the addition amount of a curing agent. .

Moreover, in this embodiment, although it was set as the aspect which forms the hard convex pattern 14 by injecting ink to the surface part 13a of the base material 13 in which the functional coating layer 12 was previously formed, the functional material manufacturing apparatus A Further, it is also possible to add a coating means for forming the functional coating layer 12 and form the functional coating layer 12 and the hard convex pattern 14 with a single apparatus.
Furthermore, in the present embodiment, the base material 13 is configured to move in the direction of the white arrow Y with respect to the nozzle head 25 of the inkjet coating injection unit 21, but the nozzle head 25 is X− with respect to the base material 13. It is good also as a structure which moves to a Y direction.

Next, another embodiment according to the present invention will be described with reference to the drawings.
Fig.4 (a) is a figure similar to FIG.1 (b) which shows the functional material which concerns on 2nd Embodiment.
The difference from the first embodiment is the configuration of the manufactured functional material itself, and the configuration and manufacturing process of the functional material manufacturing apparatus applied to manufacture the functional material are as follows. Since it is the same as that of 1st Embodiment, description is abbreviate | omitted.

The functional material 10A according to the present embodiment includes a base material 13A provided with functionality composed of a core material 11A made of natural solid wood and a transparent functional coating layer 12A formed on the surface thereof, and the base material 13A. And a transparent hard convex pattern 14A formed on the surface portion 13Aa.
That is, in the present embodiment, the functional coating layer 12A and the hard convex pattern 14A are transparent so as not to hinder the design and color of the core material 11A itself. The functional coating layer 12A and the hard convex pattern 14A may be translucent as long as the design and color of the core material 11A are not impaired.
Further, the size (particle diameter) of the convex portions 14Aa constituting the hard convex pattern 14A and the size (width) of the surface portion 13Aa exposed between them are the same as in the first embodiment. Since it is not necessary to form a pattern or color by forming the pattern 14, the pattern 14 may be larger than that of the first embodiment, for example, about 20 μm to 2.0 mm.

When the hard convex pattern 14A is transparent as in the present embodiment, the functionality and surface strength of the functional material 10 can be controlled more flexibly than in the first embodiment. For example, when the functional material 10 is applied to a door or the like, there is a high risk of contact and wear of the householder. By forming the convex portion 14Aa close to the knob, the surface strength is increased, and the householder near the ceiling It is also possible to improve functionality by forming the convex portions 14Aa sparsely at a portion where there is little fear of contact or wear.
The functional coating layer 12A may represent a pattern or color, and only the hard convex pattern 14A may be transparent.

Next, still another embodiment according to the present invention will be described with reference to the drawings.
FIG. 4B is a view similar to FIG. 1B showing the functional material according to the third embodiment.
The difference from the first embodiment is the configuration of the manufactured functional material itself, and the configuration and manufacturing process of the functional material manufacturing apparatus applied to manufacture the functional material are as follows. Since it is the same as that of 1st Embodiment, description is abbreviate | omitted.

The functional material 10B according to the present embodiment has a configuration in which a woodgrain pattern of the hard convex pattern 14B is formed on the surface portion 13Ba of the functional base material 13B. That is, the base material 13B of the present embodiment is a base material 13B itself made of a resin material or the like, in which a functional agent is contained to provide functionality, and the first embodiment and the second embodiment described above. The functional coating layers 12 and 12A are not formed.
Further, the convex portion 14Ba is a minute convex portion similar to the convex portion 14a of the first embodiment, but the convex portion 14Bb formed in the dark part of the wood grain pattern is the convex portion 14b of the first embodiment. It is assumed that the covering amount of the surface portion 13a is larger than that. That is, the convex portion 14Bb has a planar continuous spread as a result of curing of a plurality of ultraviolet curable ink droplets ejected from the nozzle head 25 (see FIG. 3).
In this way, by combining the minute convex portion 14Ba having a planar extension and the convex portion 14Bb having a planar extension, without impairing the functionality of the base material 13B, The surface strength can be increased, and the surface texture and feel of the functional material 10B can be varied according to the site.

An example of embodiment of the functional material which concerns on this invention is shown, (a) is a schematic plan view of a functional material, (b) is an expansion schematic sectional drawing of the Z section in (a). It is a block diagram which shows an example of the manufacturing apparatus of the functional material which concerns on the same embodiment. It is a schematic plan view for demonstrating the manufacturing process of the functional material which concerns on the same embodiment. (A), (b) is a figure similar to FIG.1 (b) which shows the other example of embodiment of the functional material which concerns on this invention.

Explanation of symbols

10, 10A, 10B Functional material 13, 13A, 13B Base material 13a, 13Aa, 13Ba Surface portion of base material 14, 14A, 14B Hard convex pattern 21 Inkjet coating injection unit (inkjet coating injection device)

Claims (5)

A hard convex pattern is formed by ejecting ink on the surface portion of the base material to which functionality is added by adding a functional agent so that a part of the surface portion is exposed by an inkjet coating spray device. A surface treatment method for a substrate characterized by the above. In claim 1,
The surface treatment method for a substrate , wherein the ink is an ultraviolet curable ink . In claim 1 or 2,
A substrate surface treatment method in which hard particles such as silica, alumina, and zircon are added to the ink . In any one of Claims 1 thru | or 3,
A surface treatment method for a substrate , wherein a colorant is added to the ink . In any one of Claims 1 thru | or 4,
The surface treatment method for a substrate, wherein the functional agent is at least one of a preservative, an antibacterial agent, a deodorant, an insect repellent, a water repellent, a hydrophilic agent, and a photocatalyst .

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