JP5098420B2 - How to paint board - Google Patents

Description

  The present invention relates to a method of coating a chamfered portion provided on a groove or an edge portion formed on a surface of a plate material used for a flooring or the like.

  Conventionally, as a flooring material or a wall material, a plate material in which a decorative material is laminated on the surface of a plywood is used, and in order to give the appearance that a wooden board is arranged on the plate material, a groove processing is applied to the surface. Plate material is also used. In this plate material, the grooves are usually coated after the grooves are processed. The groove coating method is to apply the coating solution over the entire surface of the plate material including the groove, and then scrape the coating solution on the surface of the plate material with a roller, leaving the coating solution only on the groove inner surface, and consequently coating the groove inner surface. (For example, refer to Japanese Patent Application Laid-Open No. 7-117204), and a method of supplying an excessive coating solution into the groove and then removing the excess coating solution by suction with a suction nozzle unit (for example, JP-A-3-137968) is also known.

  However, in the method in which the coating liquid is applied to the entire surface of the plate material including the groove, and then the coating solution on the surface of the plate material is scraped with a roller, it is difficult to scrape the coating solution on the surface of the plate material. There was a problem that the rollers for taking up had to be arranged in multiple stages, such as 5 to 8, so that the facilities would become large. In addition, it is known that the surface of the plate material has been embossed, and in recent years, the embossing has been made deeper. There was a problem that it was more difficult to scrape the liquid. In the method of supplying an excessive coating solution into the groove and then removing the excess coating solution by suction with a suction nozzle unit, it is difficult to uniformly apply the coating solution to the inner surface of the groove. May protrude outside the groove, or may not reach the edge of the groove, which may deteriorate the appearance. Further, recently, in order to give a high-grade feeling to the plate material, the cross-sectional shape of the groove formed on the surface of the plate material has a convex arc surface in the edge region of the groove instead of a simple V-shape (hereinafter referred to as an R groove). However, in the R-groove having such an arc surface, the boundary between the inner surface of the groove and the surface of the plate material is not clear. There is also a problem that the outer edge of the coating does not become linear when viewed on a plane, but has a wavy shape and the appearance is deteriorated.

  Further, in the plate material having the groove on the surface as described above, a chamfered portion having the same shape as the inner surface on one side of the groove formed on the surface is also formed at the edge portion, and the floor surface is formed by arranging the plate materials. There are also known plate materials configured such that grooves are formed between the adjacent plate materials at the chamfered portions on both sides, and plate materials which are not provided with grooves on the surface but have chamfered portions at the edge portions. In these plate materials, painting is performed on the chamfered portion of the edge portion, but this coating has the same problem as the groove coating.

JP-A-7-117204 Japanese Patent Laid-Open No. 3-137968

  The present invention has been made in view of such problems, and it is possible to cleanly coat the inner surface of the groove in a plate material provided with a groove on the surface so that the outer edge of the coating film is linear, and the edge region. It is another object of the present invention to provide a method for coating a plate material that can be applied neatly so that the outer edge of a coating film is straight even for an R groove having a convex arc surface.

In the present invention, the chamfered portion of the plate having a chamfered portion at the end edge portion can be painted beautifully so that the outer edge of the coating film is linear, and the convex arc surface is formed in the edge region. It is another object of the present invention to provide a method for coating a plate material that can be applied to a chamfered portion provided with a clear coating so that the outer edge of the coating film is linear.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application provides a first coating process in which a groove of a plate material is applied to the edge region of the groove using a first coating means, and an inner surface of the groove . The coating is performed in two stages of a second coating step in which coating is performed using a second coating unit different from the first coating unit . At this time, the first coating process is first performed on the edge region, and then the second coating process is performed on the groove inner surface. Conversely, the second coating process is performed on the groove inner surface first, and then the edge region is performed. It is good also as a structure which performs a 1st coating process.

In order to solve the above problems, the invention according to claim 2 of the present application is to apply a chamfered portion of the edge portion of the plate material to the edge region of the chamfered portion using a first coating means, and a first coating step, The chamfered portion is configured to be coated in two stages of a second coating process in which coating is performed using second coating means different from the first coating means . At this time, the first painting process for the edge region is performed first, and then the second coating process for the chamfered portion is performed. Conversely, the second coating process for the chamfered portion is performed first, and then the edge region is performed. It is good also as a structure which performs a 1st coating process. In this specification, the edge region includes a region near both sides of the edge of the groove or chamfered portion (the boundary between the groove inner surface or chamfered portion and the flat plate surface).

  Here, in the first coating step, it is preferable to use a coating method that is not easily affected by the shape of the object to be coated. Specifically, a flexographic printing method, a spray method using a pattern mask, a roller coating method, It is preferable to use a stamp method, a die coating method, or the like.

  In the second coating step for the groove, it is preferable to use a system in which a coating liquid is injected into the groove with a dispenser nozzle, and then the injected coating liquid is spread with a squeegee and applied to the inner surface of the groove. In the second coating process, it is preferable to use a roller coating method.

  In the painting method of the present invention for the groove, the edge region of the groove and the other groove inner surface are separately coated, so that the edge region can be painted so that the outer edge of the painted region is a clean straight line, By painting so that a part of the groove inner surface overlaps the area to be painted with respect to the edge area in the first painting process, the entire groove inner surface can be painted even if a somewhat rough coating is applied. Eventually, the entire surface of the groove inner surface can be beautifully painted so that the outer edge of the coating film located in the edge region becomes a clean linear shape, and the outer edge of the coating film located in the edge region is similarly applied to the R groove. The entire surface of the inner surface of the groove can be beautifully painted so as to form a clean straight line. In addition, since the process of coating the groove inner surface and the entire surface of the plate material and then removing the coating film on the surface of the plate material is not used, the troublesome work of removing the coating film on the surface of the plate material becomes unnecessary, and the coating apparatus can be simplified. The groove coating can be performed without hindrance to the plate material whose surface is embossed.

  Even in the painting method of the present invention for the chamfered portion, the edge region and the other region are separately coated so that the outer edge of the painted region can be painted into a clean straight line for the edge region. For the surface, a part of the chamfered part can be painted even if it is somewhat rough by painting so that a part overlaps the area to be painted against the edge area in the first painting process, Eventually, the entire area of the chamfered portion can be beautifully painted so that the outer edge of the coating film located in the edge region is a clean straight line, and the edge region is similarly applied to the chamfered portion having a curved surface in the edge region. The entire edge of the chamfered portion can be painted with a good appearance so that the outer edge of the coating film located in is a clean straight line.

  Hereinafter, preferred embodiments of the present invention will be described. FIG. 1 is a schematic perspective view showing an example of a plate material to be coated by the coating method of the present invention, and FIG. 2A is a schematic cross-sectional view showing an enlarged groove and its vicinity formed on the surface of the plate material. FIG. 2 and FIG. 2B are schematic cross-sectional views showing an enlarged end edge portion of the plate material. The plate material indicated as a whole by reference numeral 1 has a structure in which a decorative material 3 is laminated on the surface of a plywood 2, and grooves 4 are formed in the longitudinal direction of the plate material 1 on the surface. The cross-sectional shape of the groove 4 is arbitrary such as a V-shape or a U-shape, but in this embodiment, a cross-sectional shape having a convex arcuate surface 4a formed in the edge region is used. Further, a chamfered portion 5 is formed at an edge portion of the plate material 1. The cross-sectional shape of the chamfered portion 5 is also arbitrary, such as a linear chamfer or an arc chamfer, but in this embodiment, a convex arc surface 5a is formed in the edge region, and the rest is an inclined plane 5b. It has a cross-sectional shape. In the illustrated plate 1, the region (side surface) excluding the chamfered portion of the edge is a simple plane perpendicular to the surface of the plate, but a male or female dome may be formed in that region. Good.

  FIG. 3 is a schematic side view showing an example of a coating apparatus used for carrying out the method of the present invention for coating a groove on the surface of a plate material. The coating apparatus generally indicated by reference numeral 6 includes a conveying means 7 for conveying the plate material 1 in the longitudinal direction, and a first coating means 8 and a second coating means 9 for painting grooves on the surface of the plate material 1 being conveyed. Yes. As shown in FIGS. 4 (a) and 4 (b), the first coating means 8 is for applying a band-like coating to the edge region of the groove 4 of the plate material 1 to form the first coating film 11. . The outer edge 11a of the first coating film 11 serves as the outer edge of the coating film formed on the entire inner surface of the groove 4, and the formation position thereof may be on the arc surface 4a or on an inclined surface following the inner surface, It may be on a plane that continues outside the surface 4a. The formation region of the first coating film 11 as a whole is preferably a flat region or an arc-shaped region near an almost flat surface near the edge because it is easy to paint linearly and in a strip shape. The first coating means 8 is optional as long as it can be applied in such a manner that it can be applied linearly and in a strip shape to the coating film formation region, but it is difficult to be affected by the shape of the object to be coated. It is preferable to use a system. A typical example of a coating system that is not easily affected by the shape of the object to be coated is a flexographic printing system. In the embodiment shown in FIGS. 3 and 4, the first coating means 8 is a flexographic printing means. That is, the first coating means 8 includes an ink pan 13, an ink roll 14, an ink transfer roll 15, a plate cylinder 16, and the like. The plate cylinder 16 includes edge regions on both sides of the groove 4 of the traveling plate 1. Ring-shaped image portions 16a and 16a are formed so that a belt-like coating can be applied to the surface. With this configuration, the ink (coating liquid) of the ink pan 13 is supplied to the plate cylinder 16 by the ink roll 14 and the ink transfer roll 15, and the plate cylinder 16 forms strips on the edge regions on both sides of the groove 4 of the grooved substrate 1. And it can be applied linearly.

  In addition, as the 1st coating means 8, you may use not only a flexographic printing system but another system. For example, as shown in FIG. 6, a pattern mask 21 having an opening 21 a is arranged on the surface of the plate material 1 so as to face the position to be painted in the edge region of the groove 4, and the coating liquid is applied from above by a spray nozzle 22. Is applied to the edge region on both sides of the groove 4 of the traveling plate 1 by spraying, and the coating liquid is held as shown in FIG. A coating roller 24 provided with a disk 24a made of felt, resin, metal or the like that can be applied to an object, and a coating liquid supply means (not shown) for supplying a coating liquid to the disk 24a are provided. A roller coating method in which a strip-like and linear coating is applied to the edge regions on both sides of the groove 4 of the plate 1 that is running, as shown in FIGS. 8A and 8B, a coating liquid can be applied. Strip-shaped and straight stamp surface 26 FIG. 9 shows a stamp system in which a band 26 and a linear coating are applied to the edge regions on both sides of the groove 4 of the plate 1 by pressing the stamp 26 provided with the plate 26 against the surface of the plate 1 temporarily stopped. As shown, a die head 28 is disposed opposite to the traveling plate 1 and a coating liquid is ejected from the die head 28 with a certain width so that the strips are formed in the edge regions on both sides of the groove 4 of the traveling plate 1. Examples include a die coating type that performs linear coating. Even in these systems, the coating can be performed without being greatly affected by the shape of the object to be coated, and can be applied to the edge regions on both sides of the groove 4 in a strip shape and in a straight line shape.

  In FIG. 3, the 2nd coating means 9 is for applying the inner surface of the groove | channel 4 after forming the 1st coating film 11 in the strip | belt shape in the edge area | region by the 1st coating means 8. FIG. The coating area by the second coating means 9 only needs to cover at least the entire area of the unpainted area inside the first coating film 11, and in this case, the coating solution overcomes the first coating film 11 previously formed. If it does not spread to the outside, it may be superimposed on the first coating film 11. Therefore, the second coating means 9 is positioned so that the outer edge of the coating liquid applied when coating the groove inner surface is in contact with the first coating film 11 or on the first coating film 11 appropriately. Any material that can be applied roughly can be used, and any material capable of performing such coating can be used. In this embodiment, as shown in FIG. 5, as the second coating means 9, as shown in FIG. 5, a dispenser nozzle 31 for continuously supplying a constant amount of coating liquid into the groove 4 of the traveling plate 1, and supply into the groove 4 A squeegee 32 that spreads the applied coating solution on the inner surface of the groove is used. In this second coating means 9, as shown in FIG. 5 (a), a constant amount of the coating liquid 34 is continuously supplied by the dispenser nozzle 31 into the groove 4 of the traveling plate 1, and then FIG. 5 (b), As shown in (c), by spreading the coating liquid 34 with the squeegee 32, the coating liquid is spread on the inner surface of the groove so as to come into contact with the first coating film 11 or overlap with the first coating film 11, and then coated. By drying the liquid, a second coating 35 integrated with the first coating 11 can be formed inside the first coating 11 as shown in FIG. In addition to this method, for example, a roller coating method, a spray method, a stamp method, a die coating method, or the like may be used for the second coating means 9.

  The mounting position of the second coating means 9 may be a position far away from the first coating means 8 so that coating is performed after the first coating film 11 formed by the first coating means 8 is dried. It is preferable to arrange at a position close to the first coating means 8 so that coating can be performed when the coating film 11 is in an undried state. As described above, when the first coating film 11 is in an undried state, the second coating means 9 applies the coating to the groove inner surface, and the coating liquid applied by the second coating means 9 is applied to the first coating film 11. Since it mixes with the liquid, the boundary between the first coating film 11 and the second coating film 35 is eliminated, and the appearance is improved.

  Next, the groove coating operation by the coating apparatus 6 having the above-described configuration will be described. When the sheet material 1 is continuously conveyed by the conveying means 7, first, the first coating means 8 applies a band-shaped coating to the edge regions on both sides of the groove 4 of the sheet material 1, and the band-shaped second coating is applied to the edge area. The first coating process for forming one coating film 11 is performed, and then the second coating means 9 performs the second coating process for coating the inner surface of the groove on the inner side of the first coating film 11, and is integrated with the first coating film 11. The converted second coating film 35 is formed. Thus, the inner surface of the groove including the edge region is painted. At this time, since the first coating means 8 applies a belt-like coating by a coating method that is not easily affected by the shape of the object to be coated, the first coating film 11 can be formed in which the outer edge is a straight line. By the first painting means 8 and the second painting means 9, the inner surface of the groove is coated so that the outer edge of the coating film in the edge region is a clean straight line with respect to the groove (R groove) 4 having an arc surface in the edge region. And can be painted nicely.

  In the above embodiment, the coating for the R groove having the arc surface in the edge region has been described. However, the present invention can also be applied to a groove having no arc surface in the edge region. For example, for the groove 4 having a simple V-shaped cross section, as shown in FIG. 10, the first coating 11 is formed on the plane adjacent to the outside of the groove 4 by the first coating means 8, By coating the entire inner surface of the groove 4 inside the coating film 11 with the second coating means 9 (see FIG. 3), the inner surface of the groove can be coated so that the outer edge of the coating film in the edge region becomes a clean linear shape, It can be painted nicely.

  Further, in the above embodiment, as the plate material 1 to be coated, as shown in FIG. 1, the plate material 1 having only the grooves 4 extending in the longitudinal direction is shown, but the present invention is limited to the plate material 1 having this configuration. As shown in FIG. 11, the present invention can also be applied to a plate material 1A having a groove 4A extending in the lateral direction. In order to perform the coating on the plate material 1A, first, the coating device 6 shown in FIG. 3 applies the coating to the longitudinal groove 4, and then the plate material 1 is sent in a direction parallel to the groove 4A to perform the coating. Similar to the apparatus 6, the groove 4 </ b> A may be coated by a coating apparatus having a first coating unit and a second coating unit. In addition, when coating the grooves 4 and 4A, instead of coating the plate materials 1 and 1A while traveling, the plate materials 1 and 1A are stopped, and the first and second coating means provided in the coating apparatus are used. It is good also as a structure moved in parallel with the groove | channels 4 and 4A.

  In the embodiment described above, the first coating process is performed to apply the strip-shaped coating to the edge region of the groove 4 by the first coating means 8, and then the second coating means 9 applies the coating to the inner surface of the groove 4. However, the present invention is not limited to this configuration. First, a second coating step for coating the inner surface of the groove 4 is performed, and then a strip-shaped coating is applied to the edge region of the groove 4. It is good also as a structure which performs one coating process. In this case, the position overlapping the outer edge of the coating film formed in the second coating process is coated in a strip shape by the first coating process, so that the outer edge of the coating film in the edge region becomes a clean linear shape. Can be painted and can be painted nicely.

  Next, an embodiment of the present invention in which the chamfered portion 5 at the edge of the plate material 1 is coated will be described. FIG. 12 is a schematic side view showing an example of a coating apparatus used for carrying out the method of the present invention for coating the chamfered portion 5, and FIGS. 13 (a) and 13 (b) are obtained by the first coating means and the second coating means. It is a schematic sectional drawing which shows a coating state. Similarly to the coating apparatus 6 shown in FIG. 3, the coating apparatus 6 </ b> A for the chamfered part 5 also includes a conveying means 7 for conveying the plate 1 in the longitudinal direction and a first coating means 8 </ b> A for painting the chamfered part 5 of the sheet 1 being conveyed. And second coating means 9A. The first coating means 8 </ b> A is for forming a first coating film 11 </ b> A by applying a band-like coating to the edge region on the surface side of the plate material of the chamfered portion 5. As the first coating means 8A, the same thing as the first coating means 8 for applying a strip-like coating to the edge region of the groove 4 can be used, and as described for the first coating means 8, the influence of the shape of the object to be coated. It is preferable to use a coating system that is difficult to be affected. Specifically, it is preferable to use a flexographic printing system, a spray system using a pattern mask, a roller coating system, a stamp system, a die coating system, or the like. In the embodiment shown in the drawings, a flexographic printing method is shown. That is, the first coating means 8A includes an ink pan 13, an ink roll 14, an ink transfer roll 15, a plate cylinder 16, and the like.

  The second coating means 9A is for applying the remaining area of the chamfered portion 5 after the first coating film 11A is formed in a band shape in the edge area by the first coating means 8A. The coating area by the second coating means 9A only needs to cover at least the entire area of the uncoated area on the inner side (side surface side of the plate material) of the first coating film 11A. At that time, the coating liquid is formed first. As long as it does not extend beyond the coating film 11A, it may overlap the first coating film 11A. Accordingly, the second coating means 9A is positioned so that the outer edge of the coating liquid applied when the chamfered portion 5 is coated is in a position where it contacts the first coating film 11A or appropriately overlaps the first coating film 11A. Any material that can be applied in a rough manner can be used. In this embodiment, as the second coating means 9A, a roller coating system having a coating roller 40 and a coating liquid supply means (not shown) for supplying a coating liquid to the peripheral surface thereof is shown. In addition to this method, for example, a method of spraying a coating solution continuously with a tip dispenser nozzle to paint a desired area of the chamfered portion 5, a spray method, a stamp method, a die coating method, or the like may be used. Good.

  Also with the coating apparatus 6A having the above-described configuration, the coating in two steps is performed in the same manner as the coating apparatus 6 that performs groove coating shown in FIG. That is, when the sheet material 1 is continuously conveyed by the conveying means 7, first, the first coating means 8 </ b> A applies a band-shaped coating to the edge region of the chamfered portion 5 of the sheet material 1, and the band-shaped coating is applied to the edge region. The first coating process for forming the first coating film 11A is performed, and then the second coating means 9A performs the second coating process for coating the chamfered portion 5 inside the first coating film 11A, and the first coating film 11A. And the second coating film 35A integrated with is formed. Thus, the chamfered portion 5 including the edge region is painted. At this time, since the first coating means 8A applies a belt-like coating by a coating method that is not easily affected by the shape of the object to be coated, the first coating film 11A having a clean outer edge can be formed. By the first coating means 8A and the second coating means 9A, the chamfered portion 5 can be painted so that the outer edge of the coating film in the edge region is a clean straight line with respect to the chamfered portion 5 having an arc surface in the edge region, It can be painted nicely.

  In the above embodiment, the coating on the chamfered portion 5 having an arc surface in the edge region has been described. However, the present invention can also be applied to a chamfered portion having no arc surface in the edge region. For a simple linear chamfered portion, a first coating film is formed on the flat surface (plate material surface) adjacent to the outside of the edge by the first coating means 8A, and the entire chamfered portion inside the first coating film is formed. By painting with the second painting means 9A, the chamfered portion can be painted so that the outer edge of the coating film in the edge region is a clean straight line, and can be painted with good appearance.

  Further, in the above embodiment, the case where the chamfered portion formed in the longitudinal direction of the plate material is coated has been described. However, the chamfered portion formed in the width direction of the plate material is also coated. be able to. In that case, first, coating is performed on the chamfered portion 5 in the longitudinal direction by the coating apparatus 6A shown in FIG. 12, and then the plate material 1 is sent in the width direction, and the first coating means is applied in the same manner as the coating apparatus 6A. The chamfered portion formed in the width direction may be painted by the coating apparatus having the configuration including the second coating means. Even when the chamfered portion is applied, as in the case of the application to the groove, instead of performing the coating while the plate 1 is traveling, the plate 1 is stopped and the first coating means and the first coating means provided in the coating apparatus are used. It is good also as a structure which moves a 2 coating means parallel to a chamfering part. In addition, the order of the first and second coating steps is changed, and firstly, the second coating step for coating the chamfered portion is performed, and then the first coating step for performing strip-shaped coating on the edge region of the chamfered portion is performed. Also good. In this case, by chamfering the outer edge of the coating film formed in the second coating process in a strip shape by applying the first coating process, the chamfered portion is formed so that the outer edge of the coating film in the edge region becomes a clean straight line. Can be painted and can be painted nicely.

  As mentioned above, although the coating with respect to the groove 4 formed on the surface of the plate material 1 and the coating with respect to the chamfered portion 5 of the edge portion of the plate material 1 have been described separately, these coatings may be performed on separate lines. , It may be done in one line. When painting on the groove and painting on the chamfered portion on one line, a configuration in which each coating is performed at different positions with respect to the flow direction on the line, or a configuration in which coating is performed at substantially the same position at the same time may be adopted. In addition, when painting a groove and a chamfer on one line, the first painting means 8 and 8A and the second painting means 9 and 9A used for each painting may be of the same painting method. Alternatively, a different coating method may be used and may be selected appropriately.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to these embodiments and can be appropriately changed within the scope of the claims. For example, the plate material to be coated by the method of the present invention for coating the groove may be a plate material having a groove on the surface, and the plate material 1 having the chamfered portion 5 at the edge shown in the embodiment. It is not limited to. Similarly, the plate material to be coated by the method of the present invention for coating the chamfered portion may be a plate material having a chamfered portion at the edge portion and may not have a groove on the surface. It is not limited to the board | plate material 1 provided with the groove | channel 4 on the surface shown with the form.

The schematic perspective view which shows one example of the board | plate material made into the object of coating with the coating method of this invention (A) is a schematic sectional view showing an enlarged groove forming region of the plate shown in FIG. 1, and (b) is a schematic sectional view showing an enlarged edge region of the plate shown in FIG. Schematic side view showing an example of a coating apparatus for carrying out the coating method of the present invention for a groove (A) is schematic sectional drawing which shows the state which coats the edge area | region of a groove | channel by a 1st coating means, (b) is a schematic plan view which shows the groove | channel after coating, and its vicinity. (A), (b), (c), (d) is schematic sectional drawing which shows the state which coats the inner surface of a groove | channel by a 2nd coating means. Schematic sectional view showing a modification of the first coating means Schematic sectional view showing another modification of the first coating means (A) is schematic sectional drawing which shows the further another modification of a 1st coating means, (b) is the schematic side view. (A) is schematic sectional drawing which shows the further another modification of a 1st coating means, (b) is the schematic sectional side view Schematic cross-sectional view showing a state in which the coating is applied to the edge region of the groove having a cross-sectional shape different from the above by the first coating means Schematic perspective view showing another example of plate material Schematic side view showing an example of a coating apparatus used for carrying out the coating method of the present invention on a chamfered portion (A), (b) is schematic sectional drawing which shows the coating state by a 1st coating means and a 2nd coating means

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A board | plate material 2 plywood 3 decorative material 4 groove | channel 4a circular arc surface 5 chamfering part 5a circular arc surface 6, 6A coating device 7 conveyance means 8, 8A first coating means 9, 9A second coating means 11, 11A first coating film 11a Outer edge 13 Ink pan 14 Ink roll 15 Ink transfer roll 16 Plate cylinder 16a Image line 21 Pattern mask 21a Opening 22 Spray nozzle 24 Painting roller 24a Disc 26 Stamp 26a Stamp surface 28 Die head 31 Dispenser nozzle 32 Squeegee 34 Coating liquid 35, 35A Second Paint film 40 Paint roller

Claims (9)

A method of coating the groove of a plate having a groove on the surface, the first coating step of applying a strip-like coating to the edge region of the groove using a first coating means, and before or after the first coating step wherein the inner surface of the groove, the method for coating a sheet material having a second coating step of applying paint with another second coating means and said first coating means after. A method of coating the chamfered portion of a plate material provided with a chamfered portion at an edge portion, the first coating step of applying a strip-like coating to the edge region on the surface side of the plate material of the chamfered portion using a first coating means ; A plate material coating method including a second coating step of coating the chamfered portion of the edge portion before or after the first coating step by using a second coating unit different from the first coating unit .   The plate material coating method according to claim 1, wherein the first coating step is performed by a flexographic printing method.   The plate material coating method according to claim 1, wherein the first coating step is performed by a spray method using a pattern mask.   3. The plate material coating method according to claim 1, wherein the first coating step is performed by a roller coating method.   The plate material coating method according to claim 1, wherein the first painting step is performed by a stamp method.   3. The plate material coating method according to claim 1, wherein the first coating step is performed by a die coating method.   The coating method according to any one of claims 3 to 7 dependent on claim 1 or claim 1, wherein the second coating step for the groove is performed by injecting a coating liquid into the groove with a dispenser, and then injecting the coating liquid. A coating method for a plate material, wherein the applied coating solution is spread by a squeegee and applied to the inner surface of the groove.   The coating method according to any one of claims 3 to 7, which is dependent on claim 2 or claim 2, wherein the second coating step for the chamfered portion is performed by a roller coating method. How to paint.

Images