JP4389507B2 - Building board and printing method thereof - Google Patents

Description

  The present invention relates to a building board formed by forming a printed pattern in which ink is printed on a design surface of a building board formed with a plurality of convex blocks, and a printing method therefor.

  For building boards that are mass-produced for construction as the outer wall of the building, in order to avoid a monotonous finish, the shape of the uneven pattern formed on the design surface of the building board, the printing performed on the design surface of the building board, Ingenuity has been made. And among various building boards, as a building board which has a design surface formed in particular by a plurality of convex blocks defined by vertical joint grooves and horizontal joint grooves, there is one shown in Patent Document 1, for example.

In Patent Document 1, a simple printing method in which a printing roll holding ink is rotationally contacted with a design surface of a building board in which a plurality of convex blocks are arranged at regular intervals is used at a constant pitch. A printed layer in which the same pattern is repeatedly printed is formed. And in patent document 1, the pattern pattern of the printing layer formed in the surface of each convex block by making the pitch which formed the said convex block different from the pitch which formed the pattern pattern in the said printing layer. Can all be different.
JP-A-8-218591

However, in the above-mentioned Patent Document 1, there is no special device on the surface of the plurality of convex blocks, and although the pattern pattern is different from each other when each convex block is compared alone, the surface of the design surface of the building board is different. When the whole is observed, it can be seen that the same pattern is arranged at predetermined intervals according to a certain rule. As a result, the appearance of the entire building board becomes monotonous.
And in patent document 1, when the printing roll is repeatedly rotated and contacted to the design surface of a building board, the device which makes the external appearance by which the pattern pattern was repeatedly formed is not made | formed.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a building board capable of exhibiting a complicated design appearance in which a plurality of printed patterns formed by printing ink are different from each other, and a printing method therefor. Is.

1st invention is in the printing method of the building board formed by forming a printing pattern with a printing roll on the design surface of the building board which forms multiple convex blocks divided by the vertical joint groove and the horizontal joint groove,
The plurality of convex blocks are formed in a state where a plurality of smooth surface blocks having a substantially smooth surface and a plurality of rough surface blocks having a rough surface with fine irregularities are mixed,
By repeatedly rotating and contacting the roll surface of the printing roll with respect to the total length of the building board, a printed pattern is repeatedly formed by printing the ink retained on the roll surface on a plurality of convex blocks on the design surface of the building board. In doing
On the substantially smooth surface of the smooth surface block, almost all of the ink held on the portion of the roll surface facing the substantially smooth surface is printed, while on the rough surface of the rough surface block, The printing method for building boards is characterized in that the printed patterns different from each other are repeatedly formed by printing a part of the ink held on the portion of the roll surface facing the rough surface (Claim 1). .

  Also in the printing method of the building board of the present invention, as in the past, the roll surface of the printing roll is repeatedly rotated and brought into contact with the entire length of the building board, and the ink retained on the roll surface is used as the design surface of the building board. Print on multiple convex blocks. In this way, two or more printed patterns of the ink are repeatedly formed side by side in the direction of feeding the building board to the printing roll.

  Here, the printing method of the present invention is greatly different from the conventional printing method in that the plurality of convex blocks on the design surface of the building board are formed in a state where the smooth surface block and the rough surface block are mixed. In the point. That is, the substantially smooth surface of the smooth surface block is easy to contact the roll surface of the printing roll because the surface is substantially smooth, whereas the rough surface of the rough surface block is rough because the surface is rough. It is difficult to contact the roll surface of the printing roll. As a result, ink can be easily printed on the substantially smooth surface of the smooth surface block, while it is difficult to print ink on the rough surface of the rough surface block.

Then, on the roll surface of the printing roll, almost all of the ink held in the portion facing the substantially smooth surface is printed in contact with the substantially smooth surface, while facing the rough surface. A part of the ink held in the portion is printed while being in contact with the rough surface.
Therefore, even if the ink is held on the roll surface of the printing roll in almost the same state for each printing, the ink includes a portion printed when printing on the building board and a portion not printed. Occurs.

  Therefore, according to the printing method of the present invention, printing can be easily performed by a printing roll that holds ink in substantially the same state each time, and a plurality of printed patterns formed by printing ink are different from each other. It is possible to manufacture a building board that exhibits a beautiful design appearance.

2nd invention is the building board which forms a printing pattern with a printing roll on the design surface of the building board which forms a plurality of convex blocks defined by the vertical joint groove and the horizontal joint groove,
The plurality of convex blocks are formed in a state where a plurality of smooth surface blocks having a substantially smooth surface and a plurality of rough surface blocks having a rough surface with fine irregularities are mixed,
On the design surface of the building board, a printing pattern formed by printing the ink held on the roll surface of the printing roll is repeatedly formed, and the substantially smooth surface of the smooth surface block includes the substantially smooth surface. On the other hand, almost all of the ink held on the portion of the roll surface facing the surface is printed, while the ink held on the portion of the roll surface facing the rough surface is printed on the rough surface of the rough surface block. In the building board, the printed patterns formed repeatedly are different from each other by being partially printed (claim 7).

The building board of the present invention is similar to the above-mentioned invention in that the printed surface is different from each other by the printing roll that holds the ink in the same state for each printing on the design surface in which the smooth surface block and the rough surface block are mixed. Formed.
Therefore, the building board of the present invention can be printed easily, and can exhibit a complicated design appearance in which a plurality of printed patterns formed by printing inks are different from each other.

A preferred embodiment of the above-described building board and printing method of the present invention will be described.
In the first and second inventions, the building board includes, for example, an inorganic building board for mass production. Moreover, as an inorganic building board, there exists a ceramics type building board, for example.
Further, it is preferable that at least one of the plurality of smooth surface blocks is formed in a state in which a rough surface portion on which fine irregularities are formed is partially mixed (claims 2 and 8).
In this case, even with the smooth surface block alone, ink is easily printed on the substantially smooth surface of the smooth surface block, while the ink is not easily printed on the rough surface of the rough surface block. Can do. Therefore, the building board which exhibits the more complicated design external appearance from which the said some printed pattern mutually differs can be manufactured.

In addition to the smooth surface block and the rough surface block, the plurality of convex blocks are preferably formed in a state where a print missing block having a print missing surface that does not contact the roll surface is mixed. 9).
In this case, the formation of the printing omission block can make the plurality of printed patterns much different, and a building board that can exhibit a more complicated design appearance can be manufactured.

In addition, at least one of the plurality of smooth surface blocks is preferably formed in a state in which a part of the print missing surface that does not contact the roll surface is partially mixed (Claims 4 and 10). .
In this case, a building board capable of exhibiting a more complicated design appearance can be manufactured by the smooth surface block in which the surface portions where printing is missing are mixed.

In addition, at least one of the plurality of rough surface blocks is preferably formed in a state in which the rough surface and a print missing surface portion that does not contact the roll surface are partially mixed. (Claims 5 and 11).
In this case, a building board capable of exhibiting a more complicated design appearance can be manufactured by the rough surface block in which the print missing surface portions are mixed.

Moreover, in the said 1st invention, it is preferable to make the said printing roll contact 3 times or more with respect to the full length of the said building board (Claim 6). In the second invention, the different printed patterns are preferably formed at three or more locations (claim 12).
In these cases, the circumference of the printing roll relative to the total length of the building board can be reduced to 1/3 or less, and printing can be performed on a building board having a long total length without increasing the diameter of the printing roll too much. it can.
In addition, the upper limit of the contact frequency of the printing roll with respect to the full length of the said building board can be 5 rotations or less, and the formation location of the said printing pattern can be 5 locations or less.

Below, the Example concerning the building board of this invention and its printing method is described using drawing.
As shown in FIG. 1, the printing method of the building board 1 of the present example is the printing roll 52 on the design surface 101 of the building board 1 formed with a plurality of convex blocks 21 defined by the vertical joint grooves 221 and the horizontal joint grooves 222. This is a method for forming the printed pattern 4 by the above.
And before printing with the said printing roll 52, as shown in FIG. 2, the some convex block 21 in the design surface 101 of the said building board 1 is the several smooth surface block 21A which has the substantially smooth surface 211A, A plurality of rough surface blocks 21B having a rough surface 211B on which fine irregularities 212 are formed are formed in a mixed state.

  In the printing method of the building board 1 of this example, as shown in FIGS. 1-3, the roll surface 520 of the said printing roll 52 is repeatedly contacted in rotation with respect to the full length L1 of the said building board 1, and the said building board 1 is made. The printed pattern 4 formed by printing the ink 41 held on the roll surface 520 is repeatedly formed on the plurality of convex blocks 21 on the design surface 101.

At the time of printing, as shown in FIGS. 4 and 5, the substantially smooth surface 211A of the smooth surface block 21A is held on the facing portion 520A of the roll surface 520 facing the substantially smooth surface 211A. Almost all of the ink 41 is printed. On the other hand, at the time of this printing, a part of the ink 41 held on the facing portion 520B of the roll surface 520 facing the rough surface 211B is printed on the rough surface 211B of the rough surface block 21B. Thereby, as shown in FIG. 1, the said printed pattern 4 which is mutually different can be formed repeatedly.
This will be described in detail below.

  Here, FIG. 1 is a plan view showing a state in which different printed patterns 4 are formed on the design surface 101 of the building board 1, and FIG. 2 shows the design of the building board 1 formed with a plurality of convex blocks 21. 3 is a plan view showing the surface 101, and FIG. 3 is a development explanatory view showing a state in which the roll surface 520 of the printing roll 52 holding the ink 41 is developed according to the total length L1 of the building board 1. FIG.

First, the printing roll 52 will be described.
As shown in FIG. 6, the printing roll 52 of this example corresponds to the offset roll 52 in the gravure offset printing machine 5 having the gravure roll 51 and the offset roll 52. The roll surface 520 of the printing roll 52 corresponds to the roll outer peripheral surface 520 of the offset roll 52.
The gravure offset printing machine 5 transfers the ink 41 held on the roll outer peripheral surface 510 of the gravure roll 51 to the roll outer peripheral surface 520 of the offset roll 52, and the design of the building board 1 on the roll outer peripheral surface 520 of the offset roll 52. Ink 41 is printed by pressing the surface 101.

A pattern 511 corresponding to the printed pattern 4 formed on the design surface 101 of the building board 1 is formed on the roll outer peripheral surface 510 of the gravure roll 51. The handle pattern 511 includes a large number of recesses formed on the outer peripheral surface 510 of the roll. In this example, the pattern 511 has a large number of concave portions formed in a spot shape.
In addition, an ink pattern 40 in which the ink 41 held on the pattern 511 on the roll outer peripheral surface 510 of the gravure roll 51 is transferred as it is is formed on the roll outer peripheral surface 520 of the offset roll 52. 41 is held (see FIG. 2). The offset roll 52 can form the printed pattern 4 by transferring a part of the ink pattern 40 onto the design surface 101 of the building board 1 (see FIG. 1).

  Further, as shown in FIG. 6, an ink roll 53 that scrapes the ink 41 from the ink storage portion 531 storing the ink 41 and holds it on the pattern 511 of the gravure roll 51 on the roll outer peripheral surface 510 of the gravure roll 51. It is in contact. Further, a doctor blade 532 is provided on the outer peripheral surface 510 of the gravure roll 51 to scrape off unnecessary ink 41 that is not held by the pattern 511.

Further, a cleaning roll 54 for removing unnecessary ink 41 remaining after printing the ink 41 held thereon on the building board 1 is in contact with the outer peripheral surface 520 of the offset roll 52. Is provided with a doctor blade 541 for scraping off the removed unnecessary ink 41.
Further, a backup roll 56 is disposed at a position facing the offset roll, and the building board 1 is sent to the gap between the offset roll 52 and the backup roll 56 by the conveyor 55 and is pressed against the offset roll 52. Is printed.

As shown in FIGS. 1 and 3, the transfer of the ink 41 from the gravure roll 51 to the offset roll 52 is continuously performed by continuously rotating these, and the building board 1 is repeatedly provided with the above-described structure. A plurality of printed patterns 4 can be formed by adhering a plurality of inks 41 held on the offset roll 52 in the longitudinal direction L of the building board 1.
In this example, the roll outer peripheral surface 520 of the offset roll 52 is in contact with the full length L1 of the building board 1 for 3 rotations or more (specifically, about 3.3 rotations in this example), and the design surface of the building board 1 In the plurality of convex blocks 21 in 101, different printed patterns 4 can be formed in parallel at three or more locations (specifically, 3 locations and about 1/3 in this example).

As shown in FIGS. 1 and 4, the building board 1 of this example forms a paint layer 3 on the entire design surface of a cement-based original plate 2 made of a cement-based material, and on the surface of the paint layer 3 in a plurality of convex blocks 21. A printed pattern 4 is formed.
As shown in FIG. 7, the substantially smooth surface 211A of the smooth surface block 21A is not a perfect smooth surface, but extremely fine unevenness (roughness) due to components contained in the raw material constituting the original plate of the building board 1. have.

As shown in FIGS. 8 and 9, the rough surface 211B of the rough surface block 21B has a surface with fine irregularities 212 in which the design surface protrusion height H between the convex portion 213 and the concave portion 214 is 1 to 2 mm. The part which contacts the offset roll 52 and the part which does not contact are mixed.
In addition, as shown in FIG. 4, the design surface protrusion height H means the thickness from the back surface 102 of the building board 1 to the substantially smooth surface 211A, the rough surface 211B, or the printing omission surface 211C, and each convex block 21A. , B and C are the heights protruding from the back surface 102 of the building board 1.

  Further, as shown in FIG. 10, the printing missing surface 211C of the printing missing block 21C has a design surface protrusion height H higher than the convex portion 213 in the fine unevenness 212 of the substantially smooth surface 211A and the rough surface 211B. It is low and does not contact the offset roll 52.

As shown in FIG. 2, the building board 1 has a rectangular shape, and the horizontal joint groove 222 is directed toward the longitudinal direction L of the rectangular shape, and the width direction W perpendicular to the longitudinal direction L is A plurality of vertical joint grooves 221 are formed to form the plurality of convex blocks 21.
In addition, the length L2 in the longitudinal direction L of each of the convex blocks 21A, B, C is not constant, and in this example, the design of the building board 1 by arranging a plurality of convex blocks 21 having different lengths L2 in the longitudinal direction L. A surface 101 is formed. Thereby, the formation interval of the vertical joint groove 221 in the design surface 101 of the building board 1 is not constant. In addition, the width W2 in the width direction W of each convex block 21A, B, C is substantially the same for each convex block row 210 arranged in the width direction W, and each convex block row 210 and the convex block row 210 adjacent thereto. Are different from each other.

The length L2 in the longitudinal direction L of each of the convex blocks 21A, B, and C can be made constant, and the width W2 in the width direction W can be made constant, and the longitudinal direction of each of the convex blocks 21A, B, and C can also be made constant. It is also possible to make the width W2 in the width direction W constant without making the length L2 of L constant. In addition, the smooth surface block 21A, the rough surface block 21B, and the printing omission block having the same size, with the length L2 in the longitudinal direction L and the width W2 in the width direction W of each convex block 21A, B, C being constant. The design surface 101 of the building board 1 can also be formed by arranging a plurality of 21C.
Even in these cases, different printed patterns 4 can be formed by arranging the convex blocks 21A, B, and C in an irregularly mixed manner.

  Further, as shown in FIG. 2, the plurality of convex blocks 21 of this example include a print missing block 211 </ b> C having a print missing surface 211 </ b> C that does not contact the roll surface 520 in addition to the smooth surface block 21 </ b> A and the rough surface block 21 </ b> B. Are formed in a mixed state. The plurality of convex blocks 21 in this example are formed by irregularly mixing a plurality of smooth surface blocks 21A, a plurality of rough surface blocks 21B, and a plurality of print missing blocks 21C.

As shown in FIGS. 4 and 5, the way in which the roll outer peripheral surface 520 of the offset roll 52 contacts the convex blocks 21 </ b> A, B, and C is different. That is, the roll outer peripheral surface 520 of the offset roll 52 can be almost in contact with the substantially smooth surface of the smooth surface block 21A, and can be partially in contact with the rough surface 211B of the rough surface block 21B. There is almost no contact with the print missing surface 211C of the print missing block 21C.
Here, FIG. 4 is an explanatory cross-sectional view showing a state in which a part of the ink 41 held on the roll outer peripheral surface 520 of the backup roll 52 is printed on the design surface 101 of the building board 1. 5 indicates the ink pattern 40 held on the roll outer peripheral surface 520 of the offset roll 52. From FIG. 5, a part of the ink pattern 40 is printed as the print pattern 4. I understand that.

Below, the state where the roll outer peripheral surface 520 of the offset roll 52 contacts the surfaces 211A, B, and C of the convex blocks 21A, B, and C on the design surface 101 of the building board 1 to print the ink 41 will be described. To do.
As shown in FIG. 7, when the roll outer peripheral surface 520 of the offset roll 52 faces the substantially smooth surface 211A of the smooth surface block 21A, the roll outer peripheral surface 520 is elastically deformed along the substantially smooth surface 211A. can do. At this time, when the contact state between the roll outer peripheral surface 520 and the substantially smooth surface 211A is observed, as shown in the figure, the substantially smooth surface 211A has almost all of the facing portion 520A on the roll outer peripheral surface 520 facing it. Are in contact. Therefore, as shown in FIG. 4, almost all of the ink portion 41A held on the facing portion 520A can be printed on the substantially smooth surface 211A.

  Further, as shown in FIG. 8, when the roll outer peripheral surface 520 of the offset roll 52 faces the rough surface 211B having the fine unevenness 212 of the rough surface block 21B, the convex portion 213 in the fine unevenness 212 has a Even if the fine extra-fine unevenness 215 is formed, the roll outer peripheral surface 520 can contact the entire convex portion 213. At this time, when the contact state between the roll outer peripheral surface 520 and the rough surface 211B is observed, as shown in the figure, the rough surface 211B is in contact with almost all of the facing portion 520B on the roll outer peripheral surface 520 facing this. Yes. Therefore, as shown in FIG. 4, the ink portion 41B held on the facing portion 520B can be printed on the convex portion 213 on the rough surface 211B.

  As shown in FIG. 9, when the roll outer peripheral surface 520 of the offset roll 52 faces the rough surface 211B having the fine unevenness 212 of the rough surface block 21B, when the depth of the recess 214 in the fine unevenness 212 is deep, The roll outer peripheral surface 520 cannot contact the concave portion 214. At this time, when the contact state between the roll outer peripheral surface 520 and the rough surface 211B is observed, the facing portion 520B of the roll outer peripheral surface 520 facing the rough surface 211B is in contact with the convex portion 213 as shown in FIG. There is no contact with 214. Therefore, as shown in FIG. 4, the ink portion 41B held on the facing portion 520B is printed on the convex portion 213 on the rough surface 211B, but not printed on the concave portion 214 on the rough surface 211B.

  As shown in FIG. 10, when the roll outer peripheral surface 520 of the offset roll 52 faces the print missing surface 211C of the print missing block 21C, the roll outer peripheral surface 520 is in contact with the print missing surface 211C. I can't. At this time, when the contact state between the outer circumferential surface 520 of the roll and the printing missing surface 211C is observed, as shown in FIG. Not done. Therefore, as shown in FIG. 4, almost all of the ink portion 41C held on the facing portion 520C is not printed on the print missing surface 211C.

Next, a method for manufacturing the building board 1 will be described.
The building board 1 of this example forms a cement-based original plate 2 having a design surface 101 formed with the plurality of convex blocks 21, and is provided with a paint layer 3 on the design surface of the cement-based original plate 2, and then this It is manufactured by performing gravure offset printing on the surface of the coating layer 3 to form the different printed patterns 4.
The cement-based original plate 2 is sprayed in a mold with a mixed raw material obtained by mixing a wooden raw material (wood fiber, wooden chip, etc.), an additive, water, and the like with a cementitious raw material (cement, silicic acid raw material, etc.) This mixed raw material is hardened and molded. At this time, a design surface in which the smooth surface block 21A, the rough surface block 21B, and the printing omission block 21C are mixed is formed on the cement-based original plate 2.

Next, an undercoat layer 31 made of an undercoat such as a sealer paint is formed on the entire design surface of the cement base plate 2, and an overcoat layer 32 made of an overcoat is formed on the surface of the undercoat layer 31. Form. At this time, the paint layer 3 is formed along the surfaces 211A, B, and C of the convex blocks 21A, B, and C (see FIG. 4).
In this way, the building board 1 provided with the paint layer 3 is formed.

Next, gravure offset printing is performed on the surface of the paint layer 3 on the building board 1 using the gravure offset printer 5.
As shown in FIG. 6, in this gravure offset printing, the construction board 1 is positioned with its longitudinal direction L in the carry-in direction F, and the gap between the offset roll 52 and the backup roll 56 in the gravure offset printing machine 5. Carry in. At this time, as shown in FIG. 3, the roll outer peripheral surface 520 of the offset roll 52 repeatedly rotates and contacts in parallel with the entire length L <b> 1 in the carry-in direction F of the building board 1.

And as shown in FIG. 1, a part of the ink pattern 40 in the roll outer peripheral surface 520 of the offset roll 52 formed by transferring the pattern 511 formed on the roll outer peripheral surface 510 of the gravure roll 51 is the building board 1. Are transferred to the plurality of convex blocks 21 on the design surface 101 of the first. Thus, two or more (three or more in this example) printed patterns 4 formed by transferring a part of the ink pattern 40 are repeatedly formed in the longitudinal direction L of the building board 1.
Moreover, after forming the printed pattern 4, a clear layer for improving weather resistance, water resistance, and the like can be formed on the outermost surface of the building board 1.

  In the case of the gravure offset printing, the original position P1 (see FIG. 3) which is a position arbitrarily selected on the roll outer peripheral surface 520 of the offset roll 52 and the end portion 11 (from which printing on the building board 1 is started) (See FIG. 1). Thereby, the building board 1 can be continuously faced with respect to the offset roll 52, and the building board 1 can be printed efficiently.

  As shown in FIGS. 1 to 10, the smooth surface block 21 </ b> A, the rough surface block 21 </ b> B, and the print missing block 21 </ b> C are irregularly arranged. The ink pattern 40 by the ink 41 held on the offset roll 52 is printed on most of the ink portion 41A facing the substantially smooth surface 211A of the smooth surface block 21A, and the rough surface of the rough surface block 21B. A part of the ink part 41B that faces is printed, and most of the ink part 41A that faces the print missing surface 211C is not printed.

Thereby, a part of the ink pattern 40 can be printed on the plurality of convex blocks 21 on the design surface 101 of the building board 1, and a plurality of printed patterns 4 formed by printing the ink pattern 40 are formed. Can be different from each other. And even if the ink pattern 40 is formed on the roll outer peripheral surface 520 of the offset roll 52 in almost the same state for each printing, the printed pattern 4 formed by printing on the design surface 101 of the building board 1 is It can be complicated and different from each other.
Therefore, according to the printing method of this example, it is possible to easily print the ink pattern 40 that holds the ink 41 in almost the same state every time, and to print the ink pattern 40 partially. It is possible to manufacture a building board 1 having a complicated design appearance in which a plurality of printed patterns 4 are different from each other.

  In addition, as shown in FIG. 11, the some convex block 21 in the design surface 101 of the said building board 1 consists of the smooth surface block 21A which has the said substantially smooth surface 211A, and the rough surface block 21B which has the said rough surface 211B. Can only be. Also in this case, almost all of the ink portion 41A held on the facing portion 520A of the offset roll 52 facing the surface 211A is printed on the substantially smooth surface 211A, and the offset facing the rough surface 211B is printed on the rough surface 211B. By printing a part of the ink portion 41B held on the facing portion 520B of the roll 52, the building board 1 can be manufactured in which the plurality of printed patterns 4 have complicated design appearances different from each other.

  Further, as shown in FIG. 12, some of the smooth surface blocks 21A among the plurality of smooth surface blocks 21A can be formed in a state in which the rough surface portion 211D in which the fine irregularities 212 are formed is partially mixed. . Further, some of the smooth surface blocks 21A among the plurality of smooth surface blocks 21A and some of the rough surface blocks 21B of the plurality of rough surface blocks 21B are not in contact with the roll surface 520. The portion 211E can be formed in a partially mixed state.

  In this case, in the smooth surface block 21A, in addition to the substantially smooth surface 211A, the rough surface portion 211D and the print missing surface portion 211E are partially mixed, and the rough surface block 21B includes In addition to the rough surface 210B, it is possible to manufacture the building board 1 having a more complicated design appearance in which the plurality of printed patterns 4 are different from each other by partially mixing the print missing surface portion 211E.

The top view which shows the state in which the mutually different printing pattern was formed in the design surface of the building board which forms each convex block of a smooth surface block, a rough surface block, and a printing omission block in an Example. The top view which shows the design surface of the building board which forms each convex block of a smooth surface block, a rough surface block, and a printing omission block in an Example. Explanatory explanatory drawing which shows the state which expand | deployed the roll outer peripheral surface of the offset roll which hold | maintained the ink in the Example according to the full length of a building board. Cross-sectional explanatory drawing which shows the state which printed some ink formed in the roll surface of a printing roll on the some convex block in the design surface of the building board in an Example. The enlarged plan view which expands and shows the state which formed the printing pattern in the design surface of the building board in an Example. Explanatory drawing which shows the gravure offset printing machine in an Example. Cross-sectional explanatory drawing which shows the state which the roll outer peripheral surface of an offset roll faces the substantially smooth surface of a smooth surface block in an Example. Cross-sectional explanatory drawing which shows the state in which the roll outer peripheral surface of an offset roll faces the convex part in the rough surface of a rough surface block in an Example. Cross-sectional explanatory drawing which shows the state which the roll outer peripheral surface of an offset roll faces a recessed part in the rough surface of a rough surface block in an Example. Cross-sectional explanatory drawing which shows the state which the roll outer peripheral surface of an offset roll faces the printing omission surface of a printing omission block in an Example. The top view which shows the state in which the mutually different printing pattern was formed in the design surface of the other building board which forms the smooth surface block and rough surface block in an Example. In the embodiment, a smooth surface block in which a rough surface portion is partially mixed, a smooth surface block in which a printing omission surface portion is partially mixed, and a design surface of another building board formed with a rough surface block, The enlarged plan view which expands and shows the state which formed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building board 101 Design surface 2 Cement-type original board 21 Convex block 21A Smooth surface block 21B Rough surface block 21C Print omission block 211A Rough surface 211B Rough surface 211C Printing omission surface 211D Rough surface portion 211E Printing omission surface portion 212 Fine unevenness 221 Vertical joint groove 222 Horizontal joint groove 3 Paint layer 4 Print pattern 41 Ink 52 Printing roll (offset roll)
520 Roll surface (roll outer peripheral surface)
520A to 520C facing part L longitudinal direction W width direction

Claims (12)

In the printing method of the building board which forms a printing pattern with a printing roll on the design surface of the building board which forms a plurality of convex blocks defined by the vertical joint groove and the horizontal joint groove,
The plurality of convex blocks are formed in a state where a plurality of smooth surface blocks having a substantially smooth surface and a plurality of rough surface blocks having a rough surface with fine irregularities are mixed,
By repeatedly rotating and contacting the roll surface of the printing roll with respect to the total length of the building board, a printed pattern is repeatedly formed by printing the ink retained on the roll surface on a plurality of convex blocks on the design surface of the building board. In doing
On the substantially smooth surface of the smooth surface block, almost all of the ink held on the portion of the roll surface facing the substantially smooth surface is printed, while on the rough surface of the rough surface block, A printing method for a building board, wherein the printed patterns different from each other are repeatedly formed by printing a part of the ink held on a portion of the roll surface facing a rough surface.   2. The building board according to claim 1, wherein at least one of the plurality of smooth surface blocks is formed in a state in which a rough surface portion on which fine irregularities are formed is partially mixed. Printing method.   3. The plurality of convex blocks according to claim 1, wherein the plurality of convex blocks are formed in a state in which a printing omission block having a printing omission surface not contacting the roll surface is mixed in addition to the smooth surface block and the rough surface block. A method of printing a building board, characterized in that.   The smooth surface block of at least one of the plurality of smooth surface blocks according to any one of claims 1 to 3 is formed in a state in which a part of a print missing surface that does not contact the roll surface is partially mixed. A method for printing a building board, characterized by comprising:   5. The rough surface block according to claim 1, wherein at least one rough surface block of the plurality of rough surface blocks is formed in a state in which a portion of a print missing surface that does not contact the roll surface is partially mixed. A method for printing a building board, characterized by comprising:   6. The method for printing a building board according to any one of claims 1 to 5, wherein the printing roll is brought into contact with the entire length of the building board by three or more turns. In the building board formed by forming a printing pattern with a printing roll on the design surface of the building board formed with a plurality of convex blocks divided by the vertical joint groove and the horizontal joint groove,
The plurality of convex blocks are formed in a state where a plurality of smooth surface blocks having a substantially smooth surface and a plurality of rough surface blocks having a rough surface with fine irregularities are mixed,
On the design surface of the building board, a printing pattern formed by printing the ink held on the roll surface of the printing roll is repeatedly formed, and the substantially smooth surface of the smooth surface block includes the substantially smooth surface. On the other hand, almost all of the ink held on the portion of the roll surface facing the surface is printed, while the ink held on the portion of the roll surface facing the rough surface is printed on the rough surface of the rough surface block. A building board characterized in that the printed pattern formed repeatedly is different from each other by being partially printed.   8. The building board according to claim 7, wherein at least one of the plurality of smooth surface blocks is formed such that a rough surface portion on which fine irregularities are formed is partially mixed. .   In Claim 7 or 8, the said several convex block is formed in the state where the printing omission block which has the printing omission surface which does not contact the said roll surface other than the said smooth surface block and the said rough surface block was mixed. An architectural board characterized by that.   10. The smooth surface block according to claim 7, wherein at least one smooth surface block of the plurality of smooth surface blocks is formed in a state in which a portion of a print missing surface that does not contact the roll surface is partially mixed. Architectural board characterized by   In any one of Claims 7-10, the rough surface block of at least any one of the plurality of rough surface blocks is formed in a state in which a print missing surface portion that does not contact the roll surface is partially mixed. Architectural board characterized by   The building board according to any one of claims 7 to 11, wherein the different printed patterns are formed at three or more locations.

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