JP4153481B2 - Decorative building board and manufacturing method thereof - Google Patents

Description

  The present invention relates to a decorative building board having a design surface subjected to ink jet printing and a method for producing the same.

  In order to enhance the appearance design of the building board, there is a decorative building board in which various colors and patterns are applied to the design surface. And there exists a decorative building board which expressed the pattern with a natural feeling and a three-dimensional effect by spraying a bead on a design surface (refer to patent documents 1 and patent documents 2).

  Moreover, there exists what is shown to patent document 3 as a decorative building board which spread | dispersed the bead on the design surface, and gave inkjet coating. In this decorative building board, the purpose of spraying beads is to prevent the problem that the ink pigment adhered to the surface of the building board flows or aggregates in ink jet coating. That is, as shown in FIG. 8, by carrying out inkjet coating after arranging a large number of beads 94 on the surface of the building board 92, it is possible to obtain a decorative building board excellent in design without the flow or aggregation of ink pigment Can do.

  In the above method, as shown in FIG. 8, the ink droplets 95 landed on the surface of the dispersed beads 94 do not land on the surface of the beads 94 and flow down to the periphery thereof as shown in FIG. Then, the ink droplet 95 and the ink pigment in the ink droplet 95 that have landed on the bottom of the bead 94 are prevented from flowing by the bead 94. Thereby, even if there is a slight inclination in the design surface of the building board, the ink-jet coating surface can ensure its external design.

However, unlike the ink-jet coating method described above, in the ink-jet printing method that forms a high-resolution image, as described above, when ink droplets that land on the bead surface flow down to the bottom of the bead, An image will be disturbed and an external appearance design property will be reduced.
That is, in the above-described ink jet printing method, for example, in order to obtain a high-resolution printed image of 720 dpi, when the position of the ink dots to be formed on the design surface of the building board is shifted and the formed image is broken, the portion becomes conspicuous. The appearance design will be reduced.

Japanese Patent No. 3176044 Japanese Patent No. 3187365 Japanese Patent No. 3521884

  The present invention has been made in view of such conventional problems, and can provide a method for producing a decorative building board that can express a natural feeling and a three-dimensional feeling, and can accurately express a high-resolution printed image, and a manufacturing method thereof. Is intended to provide a decorative building board.

The present invention is, after spraying the beads with a particle size of 100~200μm the surface of the printing base formed on the substrate, the surface of the printing base excluding the position in which the beads are disposed, landing ink droplets by a method for manufacturing a decorative building board subjected to inkjet printing by forming ink dots with a diameter of 40 to 100 [mu] m,
In the inkjet printing, basic print data having information on the position and color of ink dots to be formed on the substrate is created in advance.
After spreading the beads, image the surface of the substrate on which the beads are arranged to obtain image data having positional information of the beads,
For the portion where the ink dot position in the basic print data overlaps with the bead position in the image data, the ink dot information in the basic print data is deleted and converted into blank dot information that does not form ink dots. Create modified print data that modifies the basic print data,
The corrected print data is converted into ink jet nozzle opening / closing control data,
According to the method for manufacturing a decorative building board , the inkjet nozzle is opened and closed in accordance with the opening / closing control data .

Next, the effects of the present invention will be described.
In the method for manufacturing a decorative building board, ink jet printing is performed after beads are dispersed on the surface of a printing base formed on a substrate. Therefore, a design surface expressing a natural feeling and a three-dimensional feeling can be obtained by the minute unevenness formed by the beads.

In the inkjet printing, ink dots are formed by landing ink droplets on the surface of the printing base except for the positions where the beads are arranged. Therefore, the ink droplet does not land on the surface of the bead, and the problem that the ink droplet flows from the bead surface to the hem portion of the bead cannot occur. The ink droplets land on the printing ground at the position where the beads are not arranged, and ink dots are formed at the accurate position.
As a result, a high-resolution print image can be accurately formed.

  As described above, according to the present invention, it is possible to provide a method for manufacturing a decorative building board capable of expressing a natural feeling and a three-dimensional feeling and accurately expressing a high-resolution printed image.

In addition , a decorative building board in which beads are dispersed on the surface of a printing base formed on a substrate and inkjet printing is performed,
The ink dots formed by the inkjet printing are formed on the surface of the printing base except the position where the beads are arranged,
The beads have a particle size of 100-200 [mu] m, the ink dot Ru Oh also decorative building board, characterized in that it has a diameter of 40 to 100 [mu] m.

Upper Symbol decorative building board is formed by subjecting the inkjet printing with spraying the beads on the surface of the printing base. Therefore, a design surface that expresses a natural feeling and a three-dimensional feeling can be obtained.
The ink dots are formed on the surface of the printing base except for the positions where the beads are arranged. That is, ink jet printing can be performed without landing ink droplets on the surface of the beads. As a result, the problem that ink droplets flow down to the bottom of the beads cannot occur.
Therefore, ink dots are formed at accurate positions, and a high-resolution printed image can be accurately formed.

As described above, it is possible to provide a self Shikakan, decorative building board with high resolution printing image can be accurately expressed as to expose the three-dimensional effect.

Oite the present invention (claim 1), the substrate is made of, for example, ceramic-based material.
The ink jet printing is preferably full color ink jet printing. The ink dot formation density is, for example, 180 to 1200 dpi.
Moreover, it is preferable that the said bead is arrange | positioned in the state in which a part of this bead was embedded in the said printing | printed foundation, The embedding depth can be 5-10 micrometers, for example.
In addition, the printing base can be formed by, for example, an undercoat layer directly applied to the surface of the substrate and an intermediate coat layer applied on the upper surface of the undercoat layer.

Further, the beads have a particle size of 100-200 [mu] m, the ink dots having a diameter of 40~100μm Runode, the sharpness of the high resolution printing image by the ink dots, naturalness by the beads, and the stereoscopic effect Can be obtained without any sense of incongruity, and a decorative building board excellent in appearance design can be obtained.

When the particle diameter of the beads is less than 100 μm, there is a possibility that the limit of resolution with the naked eye may be exceeded, and it may be difficult to fully express the natural feeling and stereoscopic effect due to the beads. On the other hand, when the particle diameter of the beads exceeds 200 μm, the particle diameter of the beads becomes too large with respect to the ink dots, and there is a possibility that an unnatural appearance may be caused.
If the diameter of the ink dot is less than 40 μm, the distance between adjacent ink dots may be increased in printing, and it may be difficult to obtain a clear printed image. On the other hand, when the diameter of the ink dot exceeds 100 μm, it may be difficult to obtain a print image with sufficiently high resolution.

Further, it is preferable that the beads are dispersed on the surface of the printing base at an application amount of 600 to 2500 per 1 cm ² (claim 2) .
In this case, it is possible to sufficiently express the natural feeling and stereoscopic effect due to the beads while expressing the printed image sufficiently clearly.
When the application amount is less than 600, there is a possibility that it will be difficult to sufficiently express the natural feeling and the three-dimensional effect due to the appearance. On the other hand, when the application amount exceeds 2500, the area ratio for forming the ink dots becomes small, and it may be difficult to express the printed image sufficiently clearly.

In addition, in the inkjet printing, basic print data having information on the position and color of ink dots to be formed on the substrate is created in advance.
After spreading the beads, image the surface of the substrate on which the beads are arranged to obtain image data having positional information of the beads,
For the portion where the ink dot position in the basic print data overlaps with the bead position in the image data, the ink dot information in the basic print data is deleted and converted into blank dot information that does not form ink dots. Create modified print data that modifies the basic print data,
The corrected print data is converted into ink jet nozzle opening / closing control data,
In accordance with the switching control data, it intends line opening and closing of the injection nozzle of the ink jet (claim 1).

Thereby , the decorative building board which can express a natural feeling and a three-dimensional feeling and can express a high-resolution printed image correctly can be manufactured efficiently.

The manufacturing method of the decorative building board concerning the Example of this invention and the decorative building board obtained by this are demonstrated using FIGS.
In the manufacturing method of the decorative building board of this example, as shown in FIGS. 1, 3 and 5, after spraying beads 4 on the surface of the printed base 3 formed on the substrate 2 made of ceramic material, full color is applied. Inkjet printing is performed.
In the ink jet printing, ink dots are formed by landing ink droplets on the surface of the printing base 3 excluding the position where the beads 4 are arranged.

The beads 4 have a particle diameter of 100 to 200 μm, and the ink dots 5 have a diameter of 40 to 100 μm.
Further, the beads 4 are spread on the surface of the printing base 3 at a spread amount of 600 to 2500 per 1 cm ² .
The formation density of the ink dots 5 is 180 to 1200 dpi.

The beads 4 are made of acrylic resin and have a shape such as a sphere or an ellipsoid. And the bead 4 is arrange | positioned in the state by which a part of this bead 4 was embedded in the printing foundation | substrate, The embedding depth is 5-10 micrometers.
The print base 3 is formed by an undercoat layer 31 directly applied to the surface of the substrate 2 and an intermediate coat layer 32 applied on the upper surface of the undercoat layer 31.

In the ink jet printing, basic print data having information on the position and color of ink dots 5 (5c, 5m, 5y, 5k) to be formed on the substrate 2 as shown in FIG. 61 is created.
On the other hand, after the beads 4 are sprayed on the printing base 3, the surface of the substrate 2 on which the beads 4 are arranged is imaged to obtain image data 62 having positional information of the beads 4 as shown in FIG.

Then, as shown in FIG. 4, the ink dot 5 information in the basic print data 61 is deleted and the ink is deleted from the portion where the position of the ink dot 5 in the basic print data 61 and the position of the bead 4 in the image data 62 overlap. The information is converted into information of blank dots 50 that do not form the dots 5. As a result, as shown in FIG. 4, modified print data 63 obtained by modifying the basic print data 61 is created.
The inkjet printing is performed according to the corrected print data 63. Thereby, a design surface formed by the beads 4 and the ink dots 5 as shown in FIG. 5 can be obtained. 2-5 is a schematic diagram about the area | region corresponded to a part of design surface of the decorative building board 1. FIG.

Next, the manufacturing method of the decorative building board of this example will be specifically described with reference to FIG.
First, the board | substrate 2 which consists of ceramic materials is thrown into a coating line (step S1). As shown in FIG. 1, the substrate 2 has a groove portion 22 on the design surface, but inkjet printing described later is performed on the convex flat surface 23 excluding the groove portion 22.

Next, a back sealer is applied to the back side surface 26 of the substrate 2 (step S2). Thereafter, this is dried (step S3).
Next, in order to impart waterproofness to the entire design surface of the substrate 2, an undercoat layer 31 is formed by spray coating (step S4), and then the undercoat layer 31 is dried (step S5). ).
Next, the intermediate coating layer 32 is formed on the upper surface of the undercoat layer 31 by spray coating (step S6). Next, the intermediate coating layer 32 is semi-dried (step S7). That is, the intermediate coating layer 32 is dried until it is in a dry-to-touch state.

Next, beads 4 are randomly scattered on the intermediate coating layer 32 in a semi-dry state (step S8). At this time, the lower part of the bead 4 is embedded in the intermediate coating layer 32. This embedding depth is 5 to 10 μm. The intermediate coating layer 32 is formed thicker than 10 μm.
Further, the beads 4 are distributed substantially uniformly using, for example, a line feeder.

After the application of the beads 4, the intermediate coating layer 32 is dried to fix the beads 4 on the intermediate coating layer 32 (step S9).
Next, the surface of the substrate 2 on which the beads 4 are arranged is imaged to obtain image data 62 having position information of the beads 4 as shown in FIG. 3 (steps S10 and S11). Then, the image data 62 is stored in the computer.

  On the other hand, a print image to be obtained by ink jet printing is created in advance as full-color basic print data 61 as shown in FIG. 2 and stored in a computer. That is, the basic print data 61 is data having information on the position and color (cyan, magenta, yellow, black) of the ink dots 5 (5c, 5m, 5y, 5k) to be formed on the substrate 2.

Next, the basic print data 61 (FIG. 2) and the image data 62 (FIG. 3) are combined to process the data (step S12). That is, for the portion where the position of the ink dot 5 in the basic print data 61 and the position of the bead 4 in the image data 62 overlap, the blank dot 50 that does not form the ink dot 5 by deleting the information of the ink dot 5 in the basic print data 61. Convert to information. As a result, as shown in FIG. 4, modified print data 63 is created by modifying the basic print data 61 (step S13).
Full color ink jet printing is performed in accordance with the corrected print data 63 (step S14).
That is, according to the corrected print data 63, ink dots 5 of color inks of black, cyan, magenta, and yellow are landed on the upper surface of the intermediate coating layer 32 as shown in FIG.

  As shown in FIG. 7, four print heads 72Y, 72M, 72C, and 72K are disposed above the transport line 71 that transports the substrate 2. The print heads 72Y, 72M, 72C, and 72K eject ink droplets of yellow, magenta, cyan, and black from the ejection nozzles disposed therein. This ejection is performed by controlling the opening and closing of the ejection nozzles in accordance with the transport timing of the substrate 2 so that printing according to the modified print data 63 is performed. That is, the computer converts the corrected print data 63 into the ejection nozzle opening / closing control data in the print heads 72Y, 72M, 72C, 72K, and opens / closes the ejection nozzles according to the opening / closing control data.

After the inkjet printing, the ink droplet is dried (step S15).
Next, as shown in FIG. 1, the clear layer 12 is formed by spray coating on the entire design surface from above the ink dots 5 (step S16), and the clear layer 12 is dried (step S17).
The decorative building board 1 shown in FIGS. 1 and 5 formed as described above is taken out from the painting line (step S18).

Next, the function and effect of this example will be described.
In the method for manufacturing a decorative building board, after the beads 4 are dispersed on the surface of the printing base 3 formed on the substrate 2, inkjet printing is performed. Therefore, a design surface expressing a natural feeling and a three-dimensional feeling can be obtained by the minute unevenness formed by the beads 4.

In the ink jet printing, as shown in FIGS. 1 and 5, ink dots 5 are formed by landing ink droplets on the surface of the printing base 3 excluding the position where the beads 4 are arranged. Therefore, the ink droplet does not land on the surface of the bead 4, and the problem that the ink droplet flows from the surface of the bead 4 to the hem portion of the bead 4 cannot occur. Then, the ink droplets are accurately landed on the printing base 3 where the beads 4 are not arranged, and ink dots 5 are formed at the correct positions as shown in FIG.
As a result, a high-resolution print image can be accurately formed.

The beads 4 have a particle diameter of 100 to 200 μm, and the ink dots 5 have a diameter of 40 to 100 μm. Therefore, the sharpness of the high-resolution printed image by the ink dots 5, the natural feeling and the three-dimensional feeling by the beads 4 can be fused without a sense of incongruity, and the decorative building board 1 having excellent appearance design can be manufactured.
The beads 4 are sprayed on the surface of the printing base 3 at a spraying amount of 600 to 2500 per cm ² . Therefore, the natural feeling and the three-dimensional feeling by the beads 4 can be sufficiently expressed while the printed image is sufficiently clearly expressed.

  In the ink jet printing, as described above, the corrected print data 63 is created based on the basic print data 61 and the image data 62, and the ink jet printing is performed according to the corrected print data 63. Thereby, the decorative building board which can express a natural feeling and a three-dimensional feeling and can express a high-resolution printed image correctly can be manufactured efficiently.

  As described above, according to this example, it is possible to provide a decorative building board that can express a natural feeling and a three-dimensional feeling and can accurately express a high-resolution printed image and a method for manufacturing the same.

Sectional drawing of the decorative building board in an Example. Explanatory drawing of basic print data in an Example. Explanatory drawing of the image data in an Example. Explanatory drawing of the correction print data in an Example. The top view of a part of design surface of a decorative building board in an Example. The flowchart which shows the manufacturing method of the decorative building board in an Example. Plane explanatory drawing of the printing process in an Example. Explanatory drawing of the manufacturing method of a decorative building board in a prior art example. Explanatory drawing of the manufacturing method of a decorative building board following FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Makeup building board 2 Board | substrate 3 Print base 31 Undercoat layer 32 Middle coat layer 4 Bead 5 Ink dot 61 Basic print data 62 Image data 63 Correction print data

Claims (2)

After spraying the beads with a particle size of 100~200μm the surface of the printing base formed on the substrate, the surface of the printing base excluding the position in which the beads are arranged, by landing ink droplets, 40 A method for producing a decorative building board for performing ink jet printing by forming ink dots having a diameter of ˜100 μm ,
In the inkjet printing, basic print data having information on the position and color of ink dots to be formed on the substrate is created in advance.
After spreading the beads, image the surface of the substrate on which the beads are arranged to obtain image data having positional information of the beads,
For the portion where the ink dot position in the basic print data overlaps with the bead position in the image data, the ink dot information in the basic print data is deleted and converted into blank dot information that does not form ink dots. Create modified print data that modifies the basic print data,
The corrected print data is converted into ink jet nozzle opening / closing control data,
A method for manufacturing a decorative building board, comprising: opening and closing an inkjet nozzle according to the opening / closing control data . ^{2. The} method of manufacturing a decorative building board according to claim 1, wherein the beads are dispersed on the surface of the printing base at a spraying amount of 600 to 2500 per cm2.

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