JP2007177573A - Painted building board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building board painted with a colored pattern tuned with an uneven pattern of a building board by an ink jet method capable of offering a painted external appearance which is not greatly damaged even though the location of a color pattern is slightly deviated from the uneven pattern of the building board. <P>SOLUTION: Surface of a building board 1 having an uneven pattern is painted by an ink jet type coating machine 2. A building board 1 has an uneven pattern with projected portions 6 and dented portions 7 respectively located alternately. Projected surfaces 6a of the projected portions 6 and bottom surfaces 7a of the dented portions 7 are respectively colored with different colors. Rising surfaces 8 between the projected surfaces 6a and the bottom surfaces 7a are painted with a color "Z" as a color between a color "X" for the projected surfaces 6a and a color "Y" as a color for the bottom surfaces 7a by using the ink jet type coating machine 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a painted building board formed by painting the surface of a building board having a concavo-convex pattern with an inkjet coating machine.

  Conventionally, when painting building boards such as cement-based exterior boards, it is common to apply paint to the surface of building boards using a spray coater, roll coater coater, flow coater coater, etc. Is. However, with such sprays, roll coats, flow coats, etc., it is difficult to paint complex patterns, and it is particularly difficult to paint on building boards with irregularities such as bricks on the surface like exterior boards. Have difficulty. On the other hand, painting is also performed using printing rolls such as letterpress and intaglio, but in this case, the same pattern is repeatedly applied and tends to be a monotonous pattern. When changing, it is necessary to replace the printing roll, and it is not possible to paint a different pattern for each building board.

  Therefore, recently, an ink jet printer is used as a coating machine, and a building board is conveyed by a conveyor, and the building board is sprayed from the coating nozzle head while passing under the coating nozzle head of the ink jet type coating machine. It has been proposed to coat the surface of (see, for example, Patent Document 1).

  In an ink jet type coating machine, coating is performed while controlling the spraying of paint from a large number of spray nozzles provided on the paint nozzle head, so the paint is sprayed to an arbitrary pattern on an arbitrary position on the building board. In particular, the control of spraying paint from the spray nozzle of the paint nozzle head can be set for each building board supplied to the ink jet coating machine. It is also possible to paint different patterns.

  Furthermore, in an inkjet type coating machine, the paint sprayed from the coating nozzle head is applied to the surface of the building board so that it can be applied to the surface of the building board in a non-contact manner. It is. Therefore, even if there is a complex uneven pattern on the building board, the paint sprayed from the coating nozzle head is applied to the convex surface of the convex portion, the concave bottom surface of the concave portion, or the rising surface between the convex surface and the concave bottom surface. The coating can be applied, and it becomes easy to perform the coating with a color pattern synchronized with the uneven pattern.

Here, when the uneven | corrugated pattern which consists of the convex part 6 and the recessed part 7 as shown, for example in FIG. 7 (a) (b) is formed in the surface of the building board 1, it coats on the convex surface 6a of the top part of the convex part 6. By forming the color i (shown by dot filling) and the color b (shown by diagonal lines) to be applied from the concave bottom surface 7b to the rising surface 8 of the recess 7 into different colors, The paint can be applied with a color pattern synchronized with the uneven pattern. The boundary line B between the color a painted on the convex surface 6 a and the color b painted from the concave bottom surface 7 b to the rising surface 8 is the corner around the convex surface 6 a, that is, the convex surface 6 a and the rising surface 8. The coincidence with the boundary is desirable so that the color pattern can be completely synchronized with the uneven pattern.
JP 2005-74666 A

  However, the position of the concavo-convex pattern on the building board may slightly deviate from the position of the paint sprayed from the spray nozzle of the coating nozzle head of the ink jet type coating machine due to warpage, deformation, or dimensional change due to expansion and contraction of the building board. Inevitable. And if the pattern pattern coating position by the ink jet type coating machine deviates from the position of the concavo-convex pattern on the building board in this way, the color a to be coated on the convex surface 6a of the concavo-convex pattern and the bottom surface 7b of the concave portion 7 to the rising surface 8 The boundary with the color to be painted does not coincide with the corners around the convex surface 6a. That is, as shown in FIGS. 8A and 8B, the boundary line B between the color A and the color B appears to be shifted to the end of the convex surface 6a of the convex portion 6, and the convex surface. In addition to the color A, color B appears at the end of 6a. Although the boundary line B between the colors A and B appears on the rising surface 8 as well, the rising surface 8 is a part that is difficult to see. The boundary line B at the boundary becomes conspicuous by appearing on the convex surface 6a of the convex portion 6 in a shifted manner.

  In particular, when the color a to be painted on the convex surface 6a and the color b to be painted from the concave bottom surface 7b to the rising surface 8 of the concave portion 7 are greatly different colors, the boundary line B between the color a and the color b is a color difference. The boundary line B is easily noticeable on the convex surface 6a, and the color difference is conspicuous if the color B greatly differs from the color A at the end of the convex surface 6a. In addition, there is a problem that the appearance of the coating is greatly impaired by the displacement of the coating of the colored pattern with respect to the uneven pattern.

  The present invention has been made in view of the above points, and in a painted architectural board in which a colored pattern is applied by an inkjet method in synchronization with the uneven pattern of the building board, the position of the colored pattern pattern applied to the uneven pattern is An object of the present invention is to provide a painted building board in which the appearance of coating is not greatly impaired even if it is slightly deviated.

  The painted building board according to the present invention is a painted building board in which the surface of the building board 1 having a concavo-convex pattern is painted by the ink jet coating machine 2, and the convex part 6 adjacent to the concavo-convex pattern of the building board 1 and In the concave portion 7, the convex surface 6 a of the convex portion 6 and the concave bottom surface 7 a of the concave portion 7 are colored and painted in different colors, and the rising surface 8 between the convex surface 6 a and the concave bottom surface 7 a is recessed with the coating color A of the convex surface 6 a. It is a color that is intermediate between the paint colors b on the bottom surface 7 a and is colored by the ink jet type coater 2.

  The invention of claim 2 is characterized in that, in claim 1, the rising surface 8 is an inclined surface inclined downward from the convex portion 6 toward the concave portion 7.

According to the present invention, if the coating position of the color pattern pattern is shifted relative to the uneven pattern, the convex surface 6a of the protrusion 6 of Iroi with boundary B ₁ ABCs of Iroi and rising surface 8 appears other appeared ABCs the end of the convex surface 6a, also the end of the addition to the concave bottom surface 7a of the Iroro with the concave bottom surface 7a of the recess 7 appear border B ₂ ABCs of Iroro and rising surface 8 However, since the color C of the rising surface 8 is an intermediate color between the color A of the convex surface 6a and the color B of the concave bottom surface 7a, the boundary lines B ₁ , B ₁ , B ₂ are those less obvious, also ABCs appearing on the end of the convex surface 6a and the concave bottom surface 7a are those less obvious, but it is eliminated as coating appearance is greatly impaired.

  Further, by forming the rising surface 8 on an inclined surface, the dots of the paint sprayed and flying from the ink jet coating machine 2 can be applied to the rising surface 8. 8 is easy to paint.

  Hereinafter, the best mode for carrying out the present invention will be described.

  As the building board 1, a ceramic board such as a cement board can be used, and an uneven pattern is formed on the surface thereof. The concavo-convex pattern includes, for example, convex portions 6 and concave portions 7 as shown in FIGS. 1 and 2, and the adjacent convex portions 6 and concave portions 7 are continuous via the rising surface 8. The rising surface 8 is formed as the outer surface of the convex portion 6 or the inner side surface of the concave portion 7, and the rising surface 8 is formed as an inclined surface inclined downward from the convex portion 6 toward the concave portion 7. It is. In the illustrated embodiment, the convex surface 6a that is the top of the convex portion 6, the concave bottom surface 7a that is the bottom of the concave portion 7, and the rising surface 8 are all formed as flat surfaces, and the boundary between the convex surface 6a and the rising surface 8 is angular. As the corner lines, the boundary between the concave bottom surface 7a and the rising surface 8 is formed as an angular line, but it goes without saying that the present invention is not limited to this.

  In coating the building board 1 formed as described above, an ink jet type coating apparatus is used in the present invention. As shown in FIG. 3A, the coating apparatus includes a coating nozzle head 3 provided with an injection nozzle 4, a paint supply tank 11 for supplying paint to the injection nozzle 4 of the coating nozzle head 3, and a coating nozzle head. The inkjet coating machine 2 provided with the coating control system 12 for controlling the spraying of the paint from the three spray nozzles 4 and the transport conveyor 5 for transporting the building board 1 are formed. The conveyor 5 is arranged below the ink jet type coater 2, from the front position where the building board 1 is introduced into the ink jet type coater 2, the position directly below the ink jet type coater 2, and the ink jet type coater 2. To the rear position where the building board 1 is led out.

  The coating nozzle head 3 is provided at the lower end of the ink jet coating machine 2. The coating nozzle head 3 is formed as a long line head in a direction perpendicular to the feeding direction of the building board 1 and is arranged so as to cross the conveyor 5 as shown in FIG. A plurality (for example, 30) of single nozzle heads 16 are arranged on the lower surface of the coating nozzle head 3 in a line in the longitudinal direction of the coating nozzle head 3 as shown in FIG. The single nozzle head 16 is formed in a rectangular shape on the bottom surface, and a large number of injection nozzles 4 are formed on the bottom surface of the single nozzle head 16. The injection nozzles 4 are arranged in the longitudinal direction of the single nozzle head 16 at a predetermined constant interval. In the embodiment of FIG. 5, the injection nozzles 4 are provided in four rows in the single nozzle head 16. By attaching a plurality of single nozzle heads 16 provided with the spray nozzles 4 to the coating nozzle head 3 in the longitudinal direction, a large number of spray nozzles 4 are arranged in the longitudinal direction of the coating nozzle head 3. 3 can be provided. Here, the single nozzle head 16 is attached to the coating nozzle head 3 with its longitudinal direction inclined at a predetermined angle with respect to the feeding direction of the building board 1. By tilting the single nozzle head 16 in this manner, the single nozzle head 16 is inclined. The pitch of the adjacent injection nozzles 4 in the direction perpendicular to the feeding direction of the building board 1 (the width direction of the building board 1) is reduced so that coating can be performed with high density dpi.

  In this embodiment, the coating nozzle head 3 is formed of four types of coating nozzle heads 3y, 3c, 3m, and 3k that eject paints of yellow, cyan, magenta, and black, and performs painting by full-color printing. I can do it. Similarly, the paint supply tank 11 is also composed of four types. The paint supply tank 11y for supplying yellow paint is applied to the coating nozzle head 3y, and the paint supply tank 11c for supplying cyan paint is applied to the coating nozzle head 3c. The paint supply tank 11m for supplying magenta paint is connected to the paint nozzle head 3m, and the paint supply tank 11k for supplying black paint is connected to the paint nozzle head 3k. The coating nozzle heads 3y, 3c, 3m, and 3k are arranged along the conveying direction of the building board 1.

  The painting control system 12 includes various CPUs, ROMs, RAMs, and the like, and includes a painting data creation unit, a painting control unit, an injection nozzle control unit, and the like. The painting data creation unit inputs and stores the color pattern data obtained by scanning the original image with a scanner or the like, and the painting control unit paints the color pattern data corresponding to the building board 1 to be painted. A control signal is output from the data creation unit to the ejection nozzle control unit based on the color pattern data. The spray nozzle control unit is connected to each spray nozzle 4 of the coating nozzle heads 3y, 3c, 3m, and 3k, and controls each spray nozzle 4 based on a control signal input from the spray nozzle control unit. . Each injection nozzle 4 is controlled to be controlled by, for example, a piezo control method or a method of controlling the photothermal conversion element by irradiating a laser, and the injection nozzle control unit controls each injection nozzle 4. Thus, the spraying and stopping of the respective paints of yellow, cyan, magenta, and black can be individually controlled to perform painting by full color printing corresponding to the color pattern.

  And in coating the surface of the building board 1 with the coating apparatus formed as mentioned above, the building board 1 is introduced on the conveyor 5 with the surface on which the concavo-convex pattern is formed facing up. It sends with the conveyance conveyor 5, and it passes under the coating nozzle heads 3y, 3c, 3m, and 3k of the inkjet type coating machine 2 in order. Then, while the building board 1 is fed by the conveyor 5 in this way, the paint is applied to the surface of the building board 1 by spraying paint from the coating nozzle heads 3y, 3c, 3m, and 3k, thereby coating the building board 1. Is something that can be done. The building board 1 painted in this way is sent to the terminal portion of the conveyor 5 and is carried out to the next process.

  Here, in the paint data creation part of the paint control system 12, the data of the color pattern pattern corresponding to the convex surface 6a of the convex part 6 of the concave-convex pattern of the building board 1, the concave bottom surface 7a of the concave part 7, and the rising surface 8 are input. Based on the color pattern data, the paint control unit outputs a control signal to the spray nozzle control unit, and controls the spray nozzles 4 of the paint nozzle heads 3y, 3c, 3m, and 3k, thereby controlling the projection 6 The convex surface 6a, the concave bottom surface 7a of the concave portion 7 and the rising surface 8 are painted in different colors.

  And by coating the building board 1 while controlling the inkjet coating machine 2 in this way, as shown in FIG. 1, the colored surface is coated on the convex surface 6 a of the convex portion 6 and the concave bottom surface 7 a of the concave portion 7. Can obtain a painted building board A in which the colored surface is painted and the rising surface 8 is painted in the colored space. 1 (a) and 1 (b) are perspective views as seen from different directions, where color i is indicated by solid dots, color b is indicated by diagonal lines, and color c is indicated by cross diagonal lines (FIG. 2 (a). (B), FIG. 7 (a) (b), FIG. 8 (a) (b) is also the same). In the present invention, when the convex surface 6 a of the convex portion 6, the concave bottom surface 7 a of the concave portion 7, and the rising surface 8 are painted in different colors, the color C to be applied to the rising surface 8 is the color a to be applied to the convex surface 6 a. The color is set to an intermediate color with the color B painted on the concave bottom surface 7a. This intermediate color C can be formed with a mixed color of color A and color B. For example, when color A is brown and color B is black, the intermediate color C can be formed in dark brown. .

As shown in FIG. 1 above, the coating of the convex surface 6a of the convex portion 6, the concave bottom surface 7a of the concave portion 7 and the rising surface 8 are accurately performed. around the border B ₁ of the boundary between the ABCs to match the line of the corner of the surrounding convex 6a, the boundary B ₂ of the boundary between the ABCs of Iroro and rising surface 8 of the concave bottom surface 7a of the concave bottom surface 7a It is desirable that the color pattern can be completely synchronized with the concavo-convex pattern in accordance with the line of the corner. However, the position of the concavo-convex pattern on the building board 2 with respect to the position of the paint sprayed from the spray nozzle 4 of the coating nozzle head 3 of the ink jet type coating machine 2 due to warpage, deformation, expansion and contraction of the building board 1, etc. It is inevitable that a slight deviation will occur.

Then, when the coating position of the color pattern by the ink jet type coater 2 deviates from the position of the concavo-convex pattern on the building board 1 as shown in FIG. It shifted border B ₁ and painted to ABCs not coincide with the line of the corner of the surrounding convex 6a, together with the boundary line B ₁ represents would appear to an end of the convex surface 6a and the rising surface 8, the convex surface 6a A part of the color C appears at the end of the surface, and a part of the color A appears at the end of the rising surface 8. The boundary B ₂ with ABCs of painted Iroro the rising surface 8 to be coated on the concave 7a also does not match the line around the corner of the concave 7a deviates, the boundary line B ₂ is concave 7a and inclined surfaces 8, a part of the color C appears at the end of the concave surface 7 a, and a part of the color B appears at the end of the rising surface 8.

Here, ABCs of rising surface 8 as described above, since it is neutral with Iroro of Iroi and concave bottom surface 7a of the convex 6a, and the boundary line B ₁ between Iroi and ABCs, and Iroro boundary B ₂ with ABCs, since the difference in color is small boundary inconspicuous as boundary line B between Iroi and Iroro color difference is large as in the case described above in FIG. Therefore, even appearing to the end of the convex surface 6a and the rising surface 8 boundary B ₁ between Iroi and ABCs is shifted to not match the line of the corner of the surrounding convex 6a, also the Iroro and ABCs also manifested border B ₂ is shifted to not match the line of the corner of the periphery of the concave bottom surface 7a on the end of the concave 7a and the rising surface 8, in which eliminated be less noticeable. Further, even if color C appears at the end of the convex surface 6a painted with color A or color C appears at the end of the concave bottom surface 7a painted with color B, the rising surface 8 painted with color C Even if the colors i and b appear, the color ha is an intermediate color between the colors i and b, so the color ha of the color i on the convex surface 6a and the color ha on the concave bottom surface 7a The color difference and the color difference of color A and color B with respect to color C on the rising surface 8 are not so noticeable. Therefore, even if the color pattern coating by the ink jet coater 2 is slightly misaligned with the uneven pattern of the building board 1, this misalignment is not so noticeable, and the appearance of the coating is greatly impaired. It is possible to prevent this.

  In the embodiment of FIG. 1 and FIG. 2 described above, the convex surface 6 a of the convex portion 6, the concave bottom surface 7 a of the concave portion 7, and the rising surface 8 in the concavo-convex pattern of the building board 1 are respectively coated with the ink jet coating machine 2. However, if the entire surface of the building board 1 is preliminarily painted with one color of the color a painted on the convex surface 6a, the color b painted on the concave bottom surface 7a, and the color c painted on the rising surface 8, The coating of this color by the ink jet type coating machine 2 becomes unnecessary.

  For example, as shown in FIG. 6 (a), if the entire surface of the building board 1 is painted with the color C, the color i is applied to the convex surface 6 a of the convex portion 6 and the concave bottom surface of the concave portion 7 with the inkjet coating machine 2. The painted building board A can be obtained by coating the color 7a on the surface 7a and exposing the ground color C on the rising surface 8.

  At this time, as shown in FIG. 6B, even if the color pattern coating by the ink jet type coater 2 is slightly displaced with respect to the uneven pattern of the building board 1, the color C exposed on the rising surface 8 becomes a convex surface. By forming an intermediate color between the color 6a and the color B of the concave bottom surface 7a, as described above, this misalignment is not so noticeable and prevents the appearance of the coating from being greatly impaired. It is something that can be done.

BRIEF DESCRIPTION OF THE DRAWINGS An example of embodiment of this invention is shown, (a) (b) is a perspective view in case an uneven | corrugated pattern and a color pattern pattern correspond. An example of embodiment of this invention is shown, (a) (b) is a perspective view in case an uneven | corrugated pattern and a color pattern do not correspond. BRIEF DESCRIPTION OF THE DRAWINGS The schematic structure of the coating apparatus of this invention is shown, (a) is a front view, (b) is a top view. It is the bottom view to which the coating nozzle head same as the above was expanded. It is the bottom view to which the single nozzle head same as the above was expanded. It shows an example of another embodiment of the present invention, (a) is a cross-sectional view when the concavo-convex pattern and the color pattern are the same, (b) is the concavo-convex pattern and the color pattern is the same FIG. The conventional example is shown, and (a) and (b) are perspective views when the concavo-convex pattern and the color pattern match. The conventional example is shown, and (a) and (b) are perspective views in the case where the uneven pattern and the color pattern do not match.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction board 2 Inkjet type coating machine 3 Coating nozzle head 4 Injection nozzle 6 Convex part 6a Convex surface 7 Concave part 7a Concave bottom surface 8 Rising surface

Claims (2)

  It is a painted building board in which the surface of the building board having a concavo-convex pattern is painted by an ink jet coating machine, and in the convex part and the concave part adjacent to the concavo-convex pattern of the building board, the convex surface of the convex part and the concave bottom surface of the concave part The rising surface between the convex surface and the concave bottom surface is colored between the convex coating color and the concave bottom coating color by an in-paint type painter. Characteristic painted building board. The painted building board according to claim 1, wherein the rising surface is an inclined surface inclined downward from the convex portion toward the concave portion.

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