JP2010076170A - Woodgrain tone decorative material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a woodgrain tone decorative material capable of expressing a real woodgrain pattern simply. <P>SOLUTION: In the woodgrain tone decorative material 1 in which a woodgrain pattern is inkjet-coated on the surface 12a of a base material 12, a grain pattern is inkjet-coated on the surface with a color ink, and vessel parts of the woodgrain pattern are inkjet-coated with a color ink for vessels having a gloss different from that of the color ink for the woodgrain pattern. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a wood grain makeup in which woodgrain patterns used as interior materials such as floor materials, staircase materials, wall materials and ceiling materials in buildings such as houses, and door furniture materials are expressed by ink jet painting. Regarding materials.

Conventionally, a wood grain decorative material with a wood grain pattern has been widely used as an interior material or a joinery material, and various techniques have been proposed for making the expression closer to a real woody material.
However, the luster and shine that appear on the tree rings and conduits in real wood are phenomena that occur due to reflection and scattering from the inside of cells that receive light. The problem is that gloss and shimmer are very time-consuming to express.

In the following Patent Document 1, a wear-resistant matting resin layer containing an inorganic antifriction agent and a matting agent is provided on the entire surface, and a patterned glossy resin layer is formed on the wear-resistant matting resin layer. A cosmetic agent provided is disclosed.
According to this, scratch resistance and abrasion resistance can be obtained, and a visually three-dimensional design feeling can be obtained by the difference in gloss between the portion where the gloss resin layer is provided and the portion where the gloss resin layer is not provided. It is said that.

In Patent Document 2, an embossed conduit is attached to a woodgrain pattern printed layer formed on a substrate, a print protective layer for protecting the printed layer, and a thermosetting resin film or a thermoplastic resin film. A woodgrain decorative board comprising a patterned resin layer in which only a conduit portion is filled with a wiping colorant and a transparent resin layer covering the patterned resin layer is disclosed.
According to this, since the embossed conduit is formed and only the conduit portion is filled with the wiping colorant, the pattern resin layer is provided with irregularities, and a realistic wood pattern expression closer to real wood is obtained. Yes.
JP 2001-315286 A JP 2002-337300 A

Although the thing of the said patent document 1 can obtain a three-dimensional design feeling visually by the gloss difference of the part in which the gloss resin layer was provided, and the part in which it is not provided, it is a real woody material It was not intended to express the luster and shine of the bark by using inkjet painting.
The thing of the said patent document 2 is not what was trying to express the luster and shine of the bark in a real woody material, but it is necessary to make the wood grain pattern of a printing layer and the embossed conduit | pipe formed later correspond, and it is attached type | mold It was difficult to process and required a step of filling the formed conduit with wiping colorant. Therefore, it cannot be said that the manufacturing process is simple, and it is not suitable for the recent manufacturing circumstances that tend to produce a variety of products in small quantities.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a woodgrain decorative material that can easily express a genuine wood grain pattern.

In order to achieve the above-mentioned object, the woodgrain decorative material according to the present invention is a material in which a woodgrain pattern is inkjet-coated on the surface of a base material. A color ink for a conduit having a gloss different from that of the color ink is inkjet-painted on the portion of the wood grain pattern conduit.
In the present invention, a plurality of conduit color inks having different glossiness may be inkjet-coated on the conduit portion. Here, as a method of making the gloss different, particles that reflect light may be contained, and examples of the particles to be contained include mica particles and metallic particles.

According to the woodgrain decorative material according to the present invention, the surface is coated with a wood grain pattern by color ink, and the color ink for the conduit having a gloss different from that of the color ink is applied to the conduit portion of the wood grain pattern. Since ink jet coating is applied, a difference in gloss and shine occurs between the portion of the conduit portion and the portion excluding the conduit portion, and the gloss and shine that make real woody feel can be easily expressed. That is, since the gloss of the color ink applied to the portion of the conduit portion and the portion other than the conduit portion is different, it is possible to express a glossy feeling and a hard feeling that make real solid wood feel. Therefore, when it is used as an interior material or an exterior material, it can have a high-class feeling like using a solid material.
In addition, if the conduit part is ink-jet painted with a plurality of color inks for conduits with different gloss, the expressiveness of gloss and shine in the conduit part representing the annual rings and the conduit is improved, and the wood-tone makeup When light hits the material, the light is reflected or scattered, so that it is possible to easily make the pseudo luster and shine expression more realistic. Furthermore, since there is no process of embossing the base material, it can be easily applied at a low cost, and can be made suitable for high-mix low-volume production.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is an explanatory diagram for explaining an example of an embodiment of a woodgrain decorative material according to the present invention, and is a schematic plan view. FIG. 2 is a diagram similar to FIG. Sectional drawing and schematic explanatory drawing, FIG. 3 is a block diagram showing an example of a coating apparatus used for manufacturing the woodgrain decorative material according to the embodiment, and FIG. 4 is an explanatory diagram for explaining the embodiment. FIG. 5 is a schematic explanatory view for explaining another example of a woodgrain decorative material according to the embodiment, and FIG. 6 is a plan view of another example of the woodgrain decorative material shown in FIG. It is a block diagram which shows an example of the coating device used for this.
In addition, all of these drawings are schematically shown for explanation.

The wood-tone decorative material 1 has a substantially rectangular parallelepiped shape, and the surface 12a of the base material 12 is ink-jet painted with a color ink on the surface 12a. In order to express the wood-grain pattern more realistically, an annual ring and a conduit are represented. A colored ink for a conduit is inkjet-painted on the portion 1a of the conduit portion. As the base material 12, a wood-based substrate such as a laminated material, plywood, particle board, or wood fiber board is used.
As shown in FIGS. 1 and 3, the painting apparatus A includes a CPU 20a for controlling each means, an operation means 20b for performing various operations, a storage means 20c for storing a control program or pattern data of a wood grain pattern to be painted, and the like. The control unit 20 is provided. The coating apparatus A includes a transport unit 60 that transports the placed substrate 12 and an inkjet coating unit 40 that includes a first ink head 70 and a second ink head 80.

The base material 12 to be coated is conveyed in the direction indicated by the white arrow by a conveying means 60 such as a roller conveyor 2 configured on the base 3, and the conveying means 60 ejects ink droplets by the inkjet coating unit 40. It is linked with the operation. The ink droplets of the color ink are ejected from the ink discharge ports of the first ink head 70 disposed above the coating surface of the base material 12 so that the surface of the base material 12 is painted with a wood grain pattern. . The driving method of the first ink head 70 and the second ink head 80 is not particularly limited, and a known method can be applied as appropriate. Examples thereof include a piezo method and a valve method.
In FIG. 1, 30 is an apparatus main body provided adjacent to the base 3, and 50 is a nozzle arm that is connected to the apparatus main body 30 and supports the inkjet coating unit 40 (first ink head 70, second ink head 80). It is.
The first ink head 70 includes four ink heads that eject color ink, and is configured to eject ink droplets of black, yellow, magenta, and cyan.
As shown in FIG. 1 and FIG. 4, the second ink head 80 includes four ink heads 80a for ejecting the color ink for conduit, and black (B), yellow (Y), magenta (M), cyan ( The ink droplets of each color of C) are ejected. The color ink for the conduit introduced into the second ink head is a color ink having a gloss different from that of the color ink introduced into the first ink head 70. In FIG. 4, 80b is an ink discharge port provided in the ink head 80a, and 10a schematically shows ink droplets.

The color ink for conduit put in the second ink head 80 is a color ink having a gloss different from that of the color ink put in the first ink head 70.
Gloss here refers to gloss (ink gloss, reflection of light) that occurs when ink-jet coating is applied and dried, and this gloss can be measured numerically as a gloss value with a gloss meter. The glossiness can be appropriately adjusted by known preparations of resin materials, pigments, solvents and the like contained in the color ink.

  The method for making the gloss different is not particularly limited. In addition to using color inks having different gloss values, for example, color inks for conduits having gloss different from the color ink by containing mica particles 10b, metallic particles 10c, etc. It is good. When the mica particles 10b are included, a pearly luster can be produced, and when the metallic particles 10c (for example, fine aluminum particles called aluminum flakes) are included, the appearance varies depending on the viewing angle. The direction changes, and you can create a sparkling luster. Either the mica particle 10b or the metallic particle 10c may be contained, or both the mica particle 10b and the metallic particle 10c may be contained as shown in the figure (see the enlarged view of the Y part in FIG. 2). Furthermore, it is good also as what adjusts the addition amount of these particle | grains and changes glossiness.

According to this, it is possible to express luster and shine that make it possible to feel the grain that cannot be expressed with color inks that do not contain such particles, and when light hits the particles, the light is reflected or scattered. Therefore, the pseudo luster and shimmer expression can be made more realistic.
The particle size of the particles to be contained is not particularly limited, but may be any size as long as it does not clog the nozzle discharge port 80b of the ink nozzle 80a. For example, particles of 0.1 μm to 10.0 μm are included in the color ink. be able to.
The configuration of the second ink head 80 is not limited to the configuration that moves in the width direction (see the arrow direction in FIG. 1) as shown in FIG. 1, and the entire configuration in the width direction of the substrate 12 as in the first ink head 70. It is good also as what was done.

Below, the manufacturing method of the woodgrain decorative board 1 in this embodiment is demonstrated.
FIG. 2 is a cross-sectional view taken along line X-X in FIG. 1, and illustrates a conduit portion expressed by inkjet coating of the surface 12 a of the substrate 12 and a portion to which the color ink for the conduit portion is applied. For this purpose, a plan view of the woodgrain decorative board 1 is also shown.
In the figure, reference numeral 11 denotes a color print layer, 10 denotes a conduit color print layer, and an example in which color ink containing mica particles 10b and metallic particles 10c is mounted on the second ink head will be described.
First, the base material 12 that has been subjected to the pretreatment process is transported to a predetermined position by the transport means 60. The pretreatment method before ink-jet coating is not particularly limited, but a white ink receiving layer (not shown) may be applied to improve ink fixing and color development.
When a detection sensor (not shown) or the like detects that the base material 12 has arrived at a predetermined position, the ink discharge of the first ink head 70 is based on the grain pattern data stored in the storage unit 20c of the control unit 20. Color ink is ejected from the outlet.
Then, a high-quality wood grain pattern is printed on the surface 12a of the substrate 12 by inkjet coating, and a conduit portion peculiar to the wood grain pattern such as an annual ring and a conduit is expressed.

  After the wood grain pattern is inkjet-painted on the surface 12a of the base material 12 with the color ink discharged from the first nozzle head 70, the second ink head 80 is arranged toward the portion 1a of the conduit section of the grain pattern, The color ink for the conduit is discharged from the ink discharge port of the two ink head 80. That is, after the color printing layer 11 is formed by inkjet coating with the first ink head 70, the conduit color printing layer 10 is subsequently formed by inkjet coating with the second ink head 80 so as to follow this. At this time, the color ink for the conduit is not applied to the entire surface 12a of the substrate 12, but is applied by ink jet targeting the portion 1a of the conduit as shown in the enlarged view of the Y portion in FIG.

Then, if necessary, as a post-processing step, the upper surfaces of the conduit color printing layer 10 and the color printing layer 11 are covered with a surface layer (not shown) made of a transparent urethane resin, etc. Get. At this time, as the resin for forming the surface layer, a resin that does not erase the difference in gloss between the portion 1a of the conduit portion and the portion 1b excluding the conduit portion is used. Thereby, it can be set as the grain-like decorative material 1 excellent in water resistance or weather resistance while expressing luster and shine that make real woody feel.
Note that the configurations of the first ink head 70 and the second ink head 80 are not limited to those shown in the figure, and may be integrated into a unit. It becomes possible to apply the color ink for the paint with a time difference, and the process of painting the color ink for the conduit is surely after the painting with the color ink. Moreover, it does not specifically limit about a pre-processing process and a post-processing process, A well-known process is employ | adopted.

In this way, the ink-painted color ink for conduit (conduit color printing layer 10) is applied to the portion 1a of the wood-patterned conduit portion, so that the portion 1a of the conduit portion and the portion 1b excluding the conduit portion are painted. Since the gloss of the color ink is different, it is possible to express the luster and shine that make a real woody feel, and it is possible to express the wood grain close to the real thing.
Further, since the wood grain pattern is expressed by ink-jet coating based on the pattern data stored in the control unit 20, a plate surface is not required unlike gravure printing, and a variety of wood grain is provided on the surface 12a of the substrate 12 at low cost. A pattern can be printed. Therefore, it is possible to deal with a variety of small-quantity production.

The conduit portion 1a may be formed by inkjet coating of a plurality of conduit color inks having different gloss.
FIG. 5 is a schematic explanatory diagram for explaining another example of the wood-tone decorative material according to the embodiment, and FIG. 6 is a diagram of a painting apparatus used for manufacturing the other example of the wood-tone decorative material shown in FIG. It is a block diagram which shows an example. Portions common to those described above are denoted by the same reference numerals, and description of the common portions is omitted.
A portion 1a of the conduit portion of the woodgrain decorative material 1 described here is inkjet-coated with a plurality of conduit color inks having different gloss.
Therefore, the third ink head 90 in which the color ink for conduit different in gloss from the color ink for conduit introduced in the second ink head 80 is introduced into the inkjet coating unit 40 of the coating apparatus A as shown in FIG. Is further provided.

There is no particular limitation as to how a plurality of conduit color inks having different glossiness are applied by ink-jet coating to the conduit portion 1a. For example, the wide conduit portion 1a shown as Z in FIG. In this case, the central portion may be coated with the color ink for the conduit discharged from the second ink head 80, and the both side portions may be coated with the color ink for the conduit discharged from the third ink head 90. .
Here, as a method for making the gloss different, color inks having different gloss values may be used as in the above example, and for example, mica particles or metallic particles may be contained. Therefore, for example, the first nozzle head 70 is charged with such a color ink, the second nozzle head 80 contains mica particles, and the third ink head 90 contains metallic particles to make the gloss different. It is good.
As described above, a real wood texture can be expressed only by the difference in gloss between the portion 1a of the conduit portion and the portion 1b excluding the conduit portion. In addition, the gloss depending on the shape of the conduit portion 1a and the painting area. If a plurality of color inks for conduits having different colors are used, the expressiveness of gloss and shine in the conduit portion can be improved, and the pseudo gloss and shine expression can be made more realistic.

Here, the configuration of the ink heads of the second ink head 80 and the third ink head 90 into which the color ink has been introduced is not shown, but the configuration can be the same as that of the second ink head 80 shown in the above example. (See FIG. 4).
The coating process of the conduit portion 1a is not particularly limited, but after the predetermined portion of the conduit portion 1a is coated with the second ink head 80, the third ink head 90 and the second ink head 80 are used. You may make it paint the part 1a of the conduit | pipe part which was not painted.
The second ink head 80 and the third ink head 90 may be integrated into a unit, but by separating them as shown in the figure, the color inks to be ejected are not mixed, but at a predetermined position with a time difference. It becomes possible to paint reliably aiming at.
In addition to the above-described configuration, the diameter of ink droplets ejected from the ink ejection ports of the second nozzle head 80 and the third nozzle head may be varied to improve the expression of the wood grain pattern. In addition, the number of ink heads into which the color ink for the conduit is introduced is not limited to two as shown in the figure.

  The wood grain decorative material 1 formed as described above can be used for exterior materials such as outer walls and baskets, and interior materials such as doors, floors, stairs, railings, shelves, kitchen panels, and ceilings. Further, the coating apparatus A, the conveying means 60 and the like are not limited to those shown in the drawings. For example, in the illustrated example, the first ink head 70 in a fixed state and the second ink head 80 moving in the width direction of the substrate 12 while the substrate 12 is always conveyed by the conveying means 60, and in the other examples, the Although an example in which ink jet coating is performed with the three ink heads 90 is shown, the present invention is not limited to this, and the first ink head 70 can also be applied to those that move in the width direction of the substrate 12 and perform ink jet coating. . Furthermore, the present invention can be applied to a wood grain pattern provided by inkjet coating, and the grain pattern pattern is not limited to the pattern shown in FIG.

It is explanatory drawing for demonstrating an example of embodiment of the woodgraining decorative material which concerns on this invention, and is a schematic plan view. It is the same figure as FIG. 1, and is XX arrow sectional drawing and schematic explanatory drawing of FIG. It is a block diagram which shows an example of the coating device used in order to manufacture the woodgraining decorative material which concerns on the embodiment. It is explanatory drawing for demonstrating the same embodiment, and is a principal part sectional drawing. It is a schematic explanatory drawing for demonstrating the other woodgraining decorative material which concerns on the embodiment. It is a block diagram which shows an example of the coating device used in order to manufacture the woodgraining decorative material of the other example shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wood-tone decorative material 1a Conduit part 12 Base material 12a Surface

Claims (2)

In the wood-tone decorative material in which the wood grain pattern is inkjet-coated on the surface of the base material,
A wood grain pattern is inkjet-coated with color ink on the surface, and a color ink for a conduit having a gloss different from that of the color ink is inkjet-coated on a conduit portion of the grain pattern. Woodgrain makeup material. In claim 1,
A wood grain decorative material, wherein a plurality of conduit color inks having different gloss are inkjet-coated on the conduit portion.

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