JP7353071B2 - Decorative board manufacturing method - Google Patents

Description

The present invention relates to a method for manufacturing a decorative board, and more specifically, the present invention relates to a method for manufacturing a decorative board, and more specifically, a decorative sheet is pasted from the surface of a substrate having a butt end shape where the back side protrudes from the front side to the uneven surface of the end, and is suitably used for folding doors of closets, etc. The present invention relates to a method for manufacturing decorative laminates.

It is necessary to provide a handle for opening and closing a door body such as a folding door of a closet. The butt end shape with a concave groove formed between the convex part on the back side and the convex part on the back side shall extend from the upper end to the bottom end over almost the entire height. A structure that can be opened is known. With this configuration, there is no need for a separate handle or metal fittings for attaching it near the wood end of the door surface, so the appearance is simple when viewed from the indoor side, and the top edge Since the end shape is the same over almost the entire height from the bottom end to the bottom end, there is an advantage that it can be used as a handle at any height position.

Generally, such a door body is made by processing the end of a substrate made of MDF or the like on the door end side to form the end shape as described above, and then applying a decorative sheet with hot melt adhesive applied to the back side. It is manufactured by adhering it from the entire surface of the substrate through the uneven surface of the end to the back side (paragraphs 0004, 0022, 0024 of Patent Document 1). The decorative sheet has an area (length in the width direction) sufficient to cover the entire surface of the substrate, the entire end surface along the uneven shape, and a part of the back side.

Japanese Patent Application Publication No. 2014-070326

The decorative sheet pasting method in this case will be explained with reference to FIG. 4. First, as shown in FIG. 10 on the surface 15. At this point, a portion of the decorative sheet is left in front of the convex portion 11 on the front side of the butt end 14 to cover the uneven surface of the butt end 14 having an uneven shape and a part of the back surface 13 side (excessive portion 17a of the front side of the decorative sheet). is in a prominent state. Since the decorative sheet 17 is pulled in a horizontal state in the conveying direction of the base material 10 (in the direction perpendicular to the paper surface in the figure), the front excess portion 17a of the decorative sheet does not drip down at this point.

However, as shown in FIG. 4(b), the roll R is then pressed in the direction of arrow A against the tip of the front side convex portion 11 of the butt end 14 to move the base end of the front surplus portion 17a of the decorative sheet toward the front side. When adhered to the tip of the convex portion, this causes the decorative sheet front surplus portion 17a to have a tendency to fold or bend downward, and the hanging tip of the decorative sheet front surplus portion 17a is attached to the upper surface of the back side convex portion 13 of the end 14. In some cases, the hot melt adhesive on the back surface may come into contact with the tip surface or the corner of these surfaces and become stuck. If the front excess portion 17a of the decorative sheet is attached to the rear convex portion 13 in this way, when the front excess portion 17a of the decorative sheet is subsequently pushed into the recess 12 and attempted to be attached, the decorative sheet Tears and wrinkles occur in the front surplus portion 17a , which impairs the appearance.

Therefore, the problem to be solved by the present invention is to attach a decorative sheet from the surface of a substrate having a butt end shape in which a recess is formed between a front side convex part and a back side convex part to the uneven surface of the butt end. An object of the present invention is to provide a suitable method for manufacturing decorative laminates.

In order to solve this problem, the invention according to claim 1 of the present application is a method of manufacturing a decorative board by pasting a decorative sheet from the surface of the substrate to at least the edge of the substrate, the method comprising: applying a hot melt adhesive to the back surface; A first step of attaching the decorative sheet to the surface of the substrate, and maintaining the front surplus portion of the decorative sheet in a floating state by suctioning the front surplus portion of the decorative sheet protruding forward from the end of the substrate from above. a second step of cooling and solidifying the hot melt adhesive applied to the back side of the front excess portion of the decorative sheet, and a third step of bringing the front excess portion of the decorative sheet into contact along the wood end, while heating or By pressing the front excess portion of the decorative sheet against the end of the decorative sheet after heating, the hot melt adhesive that has solidified on the back side of the front excess portion of the decorative sheet is remelted, and the adhesive causes the front surplus portion of the decorative sheet to be pressed against the end of the front end of the decorative sheet. and a fourth step of adhering it to.

The invention according to claim 2 of the present application is the method for manufacturing a decorative board according to claim 1, wherein the substrate has a butt end shape having a front side convex part and a back side convex part protruding from the front side convex part. It is characterized by

The invention according to claim 3 of the present application is the method for manufacturing a decorative board according to claim 1, wherein the substrate has a butt end shape having a recessed part.

The invention according to claim 4 of the present application is the method for manufacturing a decorative laminate according to any one of claims 1 to 3, in which, in the second step, cold air is blown to the front surplus portion of the decorative sheet. It is characterized by cooling and solidifying the hot melt adhesive applied to the back side of the adhesive.

The invention according to claim 5 of the present application is the method for manufacturing a decorative laminate according to any one of claims 1 to 3 , in which, in the fourth step, the state is brought into contact along the end shape in the third step. The present invention is characterized in that hot air is blown toward the front surplus portion of the decorative sheet to remelt the hot melt adhesive that has solidified on the back surface of the front surplus portion of the decorative sheet.

The invention according to claim 6 of the present application is the method for manufacturing a decorative laminate according to any one of claims 1 to 3 , in which a recessed portion serving as a handle that can be pulled and operated by hooking a finger is formed on the surface side of the end of the substrate. It is characterized by being

The invention according to claim 7 of the present application is the method for manufacturing a decorative laminate according to any one of claims 1 to 3 , in which, in the first step, a decorative sheet is attached to the surface of the substrate and the tip of the convex portion on the surface side of the butt end. It is characterized by being worn.

According to the present invention, when producing a decorative board by pasting a decorative sheet from the surface of the substrate to the end of the board, it is possible to eliminate the disadvantages of the prior art as described above, and prevent tears and wrinkles from forming on the decorative sheet. It never occurs. The present invention is particularly suitable as a method for manufacturing a decorative board that is suitably used for folding doors of closets.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the manufacturing method of the decorative board by one Embodiment (Example 1) of this invention in order of a process. It is explanatory drawing which shows the manufacturing method of the decorative board by other embodiment (Example 2) of this invention in order of a process. In this figure, the hot melt adhesive applied to the back surface of the decorative sheet is not shown. FIG. 3 is a side view showing several examples of end shapes to which the present invention is suitably applied. FIG. 2 is an explanatory diagram showing a method for manufacturing a decorative board according to the prior art in order of steps. In this figure, the hot melt adhesive applied to the back surface of the decorative sheet is not shown.

The present invention will be described below with reference to Examples.

FIG. 1 is an explanatory diagram illustrating a method for manufacturing a decorative board according to an embodiment of the present invention in the order of steps. By this method, a convex portion 11 on the front (indoor) side, a concave portion 12, and a convex portion 13 on the back (inside the storage) side are formed. A decorative sheet 17 is pasted from the front surface 15 of the substrate 10 having a wood end 14 to a part of the back surface 16 through the uneven surface of the wood end 14 to produce a decorative board for use as a folding door of a closet. For the substrate 10, a wood board such as a wood fiberboard such as MDF (medium density fiberboard), particle board, plywood, or LVL (laminated veneer lumber) is used.

The shape of the opening 14 is such that it extends over the entire height from the upper end to the lower end of the folding door of the closet, and when the folding door is opened from the indoor side, the folding door can be opened by wrapping the palm of the hand around the protrusion 11 on the surface side and hanging the finger over the recess 12. It is formed so that it can be opened and closed, and it can be opened and closed with a finger at any height, so it has the advantage that it can be opened and closed easily regardless of the height of the person operating the opening and closing operation. The back side convex part 13 has a longer protrusion length than the front side convex part 11, and its tip surface 13b is a plane substantially perpendicular to the front surface 15 and the back surface 16, and when this folding door is closed, the tip surface 13b The closet is closed by substantially abutting the inner surfaces of the vertical frame on the door end side of the closet opening face-to-face, or by substantially abutting the tip surfaces 13b of the convex parts on the back side of the pair of folding doors. ing.

In the method shown in FIG. 1, first, while the substrate 10 is conveyed in a direction perpendicular to the plane of the paper in the figure by a conveyance means (not shown) such as a conveyor roll, a decorative sheet 17 having a hot melt adhesive 19 applied to the back side is attached to the substrate. It has a step of pressing and pasting onto the surface 15 (FIG. 1(a)). This step can be performed in a conventional manner while pressing the decorative sheet 17 coated with the hot melt adhesive 19 onto the substrate surface 15 from above using a roll, a pressing plate, or the like. As the hot melt adhesive, a thermosetting resin adhesive such as ethylene vinyl acetate (EVA) is used.

The decorative sheet 17 has a length (horizontal length in FIG. 1) that sequentially extends from the entire surface of the substrate 10 to the uneven surface of the butt end 14 and further reaches a part of the back surface 16 (horizontal length in FIG. 1). Since the hot melt adhesive 19 is applied to the decorative sheet 17, the front surplus portion 18 of the decorative sheet 17 protrudes in front of the front side convex portion 11, and the weight of the hot melt adhesive 19 applied to the front surplus portion 18 and its back surface is Trying to fall down. If the front excess portion 18 of the decorative sheet drips down while the hot melt adhesive 19 is still melted, the front excess portion 18 of the decorative sheet will adhere to the rear convex portion 13 (its tip surface 13b, top surface 13a, etc.). , giving rise to the disadvantages already mentioned in connection with the prior art. In the method shown in FIG. 1, in order to prevent this and also to cool and solidify the hot melt adhesive 19 applied to the back side of the front surplus portion 18 of the decorative sheet, the front side of the decorative sheet is A process is adopted in which the excess portion 18 is sucked from above and held in a floating state, while cold air is applied from below using a cooling device (FIG. 1(b)).

The hot melt adhesive 19 is applied in a molten state to the back surface of the decorative sheet 17 that has been unwound from a roll (not shown), and then gradually cools down. Since the adhesive strength is maintained without solidifying, a cooling device is used to cool the front excess portion 18 of the decorative sheet to a temperature below the solidification temperature of the hot melt adhesive 19, thereby cooling the hot melt adhesive 19 applied to the back surface of the decorative sheet. Let solidify.

In addition, suction from above can be performed by an arbitrary number of vacuum suction devices arranged above along the conveyance line of the substrate 10, thereby preventing the excess front portion 18 of the decorative sheet 17 from dripping down and keeping it in a floating state. At the same time, it also serves as a decorative sheet positioning means to prevent the front excess portion 18 of the decorative sheet from being rolled up by the cold air from the cooling device. The cold air may be applied from any direction as long as the decorative sheet 17 can be positioned by the vacuum suction device. In addition, if the wind force when applying cold air from below is large and it is possible to prevent the front excess portion 18 of the decorative sheet from drooping and maintain it in a floating state without suction, the suction can be omitted. However, in this case, it is preferable to provide positioning means above the decorative sheet 17 along the substrate conveyance line to prevent the front excess portion 18 of the decorative sheet from rolling up.

Next, the suction and cooling are stopped (or weakened), and the front excess portion 18 of the decorative sheet is inserted along the uneven shape of the end 14 (FIG. 1(c)). At this time, the hot melt adhesive 19 applied to the back side of the front excess portion 18 of the decorative sheet has been cooled and solidified by the cold air from below, so this process is performed by applying the front excess portion 17 along the uneven shape of the end 14. Although it is only inserted (pushed) in and does not actually adhere along the uneven surface of the end 14, there is a tendency to fold or bend the front excess portion 18 of the decorative sheet so that it roughly corresponds to the uneven shape of the end 14. This contributes to adhering the decorative sheet front surplus portion 18 along the uneven surface of the butt end 14 without causing tears or wrinkles in the subsequent process (FIG. 1(d)).

To explain this process in detail, in order to insert the front surplus portion 18 of the decorative sheet along the uneven surface of the end 14, for example, press rolls 20a to 20e are sequentially installed at appropriate intervals along the conveyance line of the substrate 10. , by moving the press roll 20a in the direction of arrow A, the area to be adhered to the front side convex part 11 of the front surplus portion 18 of the decorative sheet is brought into contact with the tip of the front side convex part 11, and the press roll 20b is moved in the direction of arrow A. By moving in the direction B, the area to be adhered to the recess 12 of the front excess portion 18 of the decorative sheet comes into contact with the recess 12, and by moving the press roll 20c in the direction of arrow C, the front excess portion 18 of the decorative sheet is attached. The area to be adhered to the upper surface 13a of the rear convex portion is brought into contact with the upper surface 13a of the rear convex portion, and the pressure roll 20d is moved in the direction of arrow D, so that the front end surface of the rear convex portion of the front surplus portion 18 of the decorative sheet is removed. 13b is brought into contact with the tip end surface 13b of the convex portion on the back side, and further, by moving the press roll 20e in the direction of arrow E, the front excess portion 18 of the decorative sheet is moved to the end side end of the back side 16 of the substrate. This can be done by wrapping the area around the area and bringing the area to be adhered into contact with the back surface part.

Note that "contact" here does not necessarily mean that the front excess portion 18 of the decorative sheet is brought into complete contact with the uneven surface of the butt end 14, but at least a fold that approximately matches the uneven shape of the butt end 14. It is sufficient to deform it to the extent that it has a habit of bending or bending. Further, it is preferable that the press rolls 20a to 20e be installed in a required number with their positions and moving directions set appropriately so that a folding or bending tendency can be imparted according to the uneven shape of the butt end 14.

Next, the front excess portion 18 of the decorative sheet inserted along the uneven shape of the end 14 in the above process is heated to remelt the hot melt adhesive 19 applied to the back surface of the decorative sheet, and the front excess portion 18 of the decorative sheet is heated. The portion 18 is pressed against the uneven surface of the butt end 14 and adhered (FIG. 1(d)). The heating temperature at this time is approximately equal to or higher than the heat resistance temperature of the hot melt adhesive 19 used. The heat-resistant temperature is the maximum temperature at which a product or part bonded with a hot-melt adhesive can maintain its adhesive state even when heated.It varies depending on the type of hot-melt adhesive and the bonding condition, but the softening point ( The melting temperature) is generally 80 to 150°C, while the heat-resistant temperature is generally 50 to 100°C. In this step, it is necessary to restore the adhesive strength of the hot melt adhesive 19 once solidified, so it is necessary to heat it to at least the heat-resistant temperature or higher to soften it to some extent even if it does not reach a molten state, or to soften it. Heat it above the point to melt it.

In this step, similarly to the step of FIG. 1(c), for example, the front excess portion 18 of the decorative sheet is pressed in the direction of arrow A against the tip of the front surface side convex portion 11, and then remelted via the hot melt adhesive. The first pressure roll 21a to be bonded, the second pressure roll 21b inserted into the recess 12 in the direction of arrow B and bonded via remelted hot melt adhesive, and the upper surface of the back side convex portion 13. A third pressing roll 21c is pressed in the direction of arrow C to bond the remelted hot melt adhesive, and a third pressure roll 21c is pressed in the direction of arrow D to the tip end surface 13b of the back side convex portion 13 to bond the remelted hot melt adhesive. A fourth pressing roll 21d adheres via melt adhesive, and a fifth pressing roll presses in the direction of arrow E against the butt side end of the back surface 16 of the substrate and adheres via remelted hot melt adhesive. Rolls 21e are installed along the conveyance line of the substrate 10, and the pressing rolls 21a to 21e can be used. It is preferable to set the required number of pressure rolls 21a to 21e with their positions and moving directions set appropriately so that they can adhere well to the uneven surface of the butt end 14.

A heating means such as a hot air device can be used to heat the front surplus portion 18 of the decorative sheet and remelt the hot melt adhesive 19 on the back surface. As described above, when the front excess portion 18 of the decorative sheet is sequentially attached to different parts of the end 14 using the plurality of pressure rolls 21a to 21e, the hot melt adhesive 19 cools down due to the time difference. If there is a risk of solidification, it is preferable to install a plurality of heating means along the conveyance line of the substrate 10 in order to prevent this. In this case, the plurality of heating means may be installed so as to blow hot air from arbitrary points in different directions, for example, the pressure rolls 20a to 20e in FIG. Similarly to the pressing rolls 21a to 21e, five heating means for blowing hot air in the directions of arrows A to E can be installed.

Through the above steps, the decorative sheet 17 is pasted from the front surface 15 of the substrate 10 having the end 14 consisting of the front side convex part 11, the recessed part 12, and the back side convex part 13, through the uneven surface of the end 14, and to a part of the back side 16. Decorative panels for folding closet doors are manufactured. In the case of a decorative board for a closet folding door, since the back surface 16 of the substrate is hardly observed, it is not necessary to attach the decorative sheet 17 to the entire surface of the back surface. In order to prevent the decorative sheet 17 from peeling off at the corner of the back surface 16 of the board and the back surface 16 of the board, the decorative sheet 17 is pasted around the back surface side convex part 13 to a part of the back surface 16 of the board.

In the first embodiment described above, the decorative sheet 17 is first attached to the substrate surface 15 (FIG. 1(a)), and then hot melt adhesive (not shown) is applied to the back surface of the front excess portion 18 of the decorative sheet. (omitted)) is cooled and solidified (FIG. 1(b)), and then the front excess portion 18 of the decorative sheet is pushed in along the uneven shape of the end 14 (FIG. 1(c)). As mentioned above, the decorative sheet 17 is always pulled forward in the conveyance direction of the substrate 10, so when the decorative sheet 17 is attached to the substrate surface 15, the front excess portion 18 of the decorative sheet is pushed downward. There is no dripping, and this problem is a concern when the front surplus portion 18 of the decorative sheet is pressed against the tip of the front surface convex portion 11 and adhered using a pressure roll moving in the direction of arrow A. . A method for manufacturing a decorative board according to a modified embodiment of the present invention that takes this into account is shown in FIG.

In this method, the decorative sheet 17 is attached to the substrate surface 15 in the same manner as in Example 1 (FIG. 2(a)), and the front excess portion 18 of the decorative sheet is moved by moving the pressing roll 22a in the direction of arrow A. The region to be adhered to the front surface convex portion 11 is pressed against the tip of the front surface side convex portion 11 and adhered (FIG. 2(b)). As a result, the decorative sheet 17 has a tendency to fold or bend, and the front excess portion 18 of the decorative sheet tends to droop downward. While the front excess portion 18 of the decorative sheet is sucked from above and held in a floating state, the hot melt adhesive applied to the back surface of the front excess portion 18 of the decorative sheet is cooled and solidified (FIG. 2(b)). The suction and cooling at this time can be performed in the same manner as described above in connection with the step of FIG. 1(b) in Example 1.

While continuing this suction and cooling, the front excess portion 18 of the decorative sheet is inserted along the uneven shape of the end 14. For example, by moving the pressure roll 22b in the direction of arrow B, the area to be pasted into the recess 12 of the front excess portion 18 of the decorative sheet is inserted into the recess 12 (FIG. 2(c)), and then the pressure roll 22c is moved in the direction of arrow B. By moving it in the direction C, the region of the front surplus portion 18 of the decorative sheet to be adhered to the lower surface of the recess 12 is pressed against the lower surface of the recess (FIG. 2(d)). At this time, the hot-melt adhesive applied to the back surface of the front excess portion 18 of the decorative sheet has been cooled and solidified by the cold air from below, so in this step, the front excess portion 18 is moved along the uneven shape of the end 14. Although it is only inserted or pushed into contact and is not actually bonded along the uneven surface of the end 14, the front excess portion 18 of the decorative sheet is folded or bent so as to roughly correspond to the uneven shape of the end 14. This contributes to the adhesion of the decorative sheet front surplus portion 18 along the uneven surface of the butt end 14 without causing tears or wrinkles in the subsequent process (FIGS. 2(e) to (j)).

Note that the cooling needs to be continued at least until the hot melt adhesive applied to the back surface of the front excess portion 18 of the decorative sheet is solidified. In the method shown in FIG. 2, suction and cooling are continued even at the point in time shown in FIG. Cooling may be terminated at this point.

Next, the front excess portion 18 of the decorative sheet inserted along the uneven shape of the end 14 is heated to remelt the hot melt adhesive 19 applied to the back surface of the decorative sheet, and the front excess portion 18 of the decorative sheet is heated. It is pressed against the uneven surface of the butt end 14 and adhered.

For example, hot air is blown toward the end 14 to remelt the hot melt adhesive that has solidified on the back surface of the front excess portion 18 of the decorative sheet (FIG. 2(e)), and immediately after that, the hot melt adhesive While the molten state is maintained, the front excess portion 18 of the decorative sheet is pasted from the lower surface of the front side convex portion 11 of the butt end 14 to the inner surface of the concave portion 12 by pressing the pressure roll 22d in the direction of arrow D ( 2(f)), the front excess portion 18 of the decorative sheet is adhered to the upper surface 13a of the back side convex portion 13 of the butt end 14 by pressing the pressure roll 22e in the direction of arrow E (FIG. 2(h)), and By pressing the tightening roll 22f in the direction of arrow F, the front excess portion 18 of the decorative sheet is affixed to the front end surface 13b of the convex portion 13 on the back side of the butt end 14 (FIG. 2(i)), and then the pressing roll 22g is pressed in the direction of arrow F. The above-mentioned pasting process can be carried out by pasting the front excess portion 18 of the decorative sheet to the butt end side end of the back surface 16 of the butt end 14 by pressing in the G direction (FIG. 2(j)).

In the step of remelting the hot melt adhesive that has solidified on the back surface of the front excess portion 18 of the decorative sheet (FIG. 2(e)), the unevenness of the end 14 is melted using the heating means already described in Example 1. This can be done by blowing hot air in one or more directions depending on the shape. If there is a concern that the hot melt adhesive may cool and solidify while sequentially pasting the decorative sheet front surplus portion 18 on each side of the butt end 14, it may be applied at any point during each pasting process. Then blow hot air again to prevent cooling and solidification. In the embodiment shown in FIG. 2, the process (FIG. 2(f)) of attaching the front surplus portion 18 of the decorative sheet from the lower surface of the front side convex part 11 of the butt end 14 to the inner surface of the concave part 12 using the pressing roll 22d, and Between the step of attaching the front excess portion 18 of the decorative sheet to the upper surface 13a of the back convex portion 13 of the end 14 with the roll 22e (FIG. 2(h)), another heating step is performed (FIG. 2(h)). g)). Alternatively, the hot melt adhesive may be remelted by blowing hot air continuously from the point in time shown in FIG. 2(e) while the adhering steps are sequentially performed.

Through the above steps, as in Example 1, from the front surface 15 of the substrate 10 having the end 14 consisting of the front side convex part 11, the recessed part 12, and the back side convex part 13, through the uneven surface of the end 14, a part of the back surface 16 is formed. A decorative board 18 for a closet folding door with a decorative sheet 17 pasted along the entire length is manufactured.

Note that the pressing or pressing rolls 22a to 22g impart a folding or bending tendency to the front surplus portion 18 of the decorative sheet along the uneven shape of the end 14, and also provide good adhesion to the uneven surface of the end 14. It is preferable to set the position and movement direction appropriately and install the necessary number of devices so as to be able to do so. For example, in order to insert the front excess portion 18 of the decorative sheet into the recess 12 and bring it into contact with the inner surface thereof, not only the pressure roll 22b (FIG. 2(c)) moving in the direction of arrow B but also the upper surface of the recess 12 must be used. A pressure roll or the like may be added as appropriate to press from diagonally downward.

Although the present invention has been described above in detail based on the embodiments, the present invention is not limited thereto, and can be implemented with various modifications or changes within the scope of the invention as interpreted based on the claims. It is possible.

The present invention is applicable not only to a substrate 10 having an uneven end 14 in which a recess 12 is formed between a front side convex part 11 and a back side convex part 13 having a longer protrusion length than the front side convex part 11 as shown in the figure. It can be applied when attaching a decorative sheet from the surface to at least the end of a butt-shaped substrate having a part protruding from the side. For example, if the end 14 of the substrate 10 is attached to the surface side as shown in FIG. As shown in FIG. 3(b), there is an intermediate convexity between the front side convexity 11 and the back side convexity 13, as shown in FIG. 3(b). The recesses 12a and 12b are formed between these projections by forming a portion 23 (there may be a plurality of portions, and the protrusion length thereof may be longer or shorter than the front surface side projection 11/back surface side projection). As shown in FIG. 3(c), the end shape has an inclined surface that is more protruding on the back side than the front side, and as shown in FIG. 3(d), there is a recess 12 in the middle in the thickness direction. According to the present invention, a decorative sheet can be suitably attached to a base material having a formed butt end shape, a butt end shape with an intermediate convex portion 23 formed as shown in FIG. 3(e), or the like.

Furthermore, in the present invention, the decorative sheet is attached from the surface of the substrate to at least the uneven surface of the end, and it is not necessary to attach the decorative sheet by extending it all the way to a part of the back surface of the substrate as in the previously described embodiments. Just one embodiment.

10 Substrate 11 Convex parts on the front side of the end 12, 12a, 12b Recessed part of the end 13 Convex part on the back side of the end 14 End of the board 15 Front surface 16 of the board Back side 17 of the board Decorative sheet 18 Front surplus portion of the decorative sheet 19 Hot melt adhesive 20a to 20e Press rolls 21a to 20g Press rolls 22a to 22g Press/press roll 23 Intermediate convex part of the butt end

Claims (7)

A method of manufacturing a decorative board by pasting a decorative sheet from the surface of the substrate to at least the end of the substrate,
A first step of attaching a decorative sheet whose back side is coated with hot melt adhesive to the surface of the substrate;
The hot melt is applied to the back side of the front surplus portion of the decorative sheet while maintaining the front surplus portion of the decorative sheet in a floating state by suctioning the front surplus portion of the decorative sheet protruding forward from the wood end on the surface of the substrate from above. A second step of cooling and solidifying the adhesive;
a third step of bringing the front excess portion of the decorative sheet into contact along the wood end;
By pressing the front excess portion of the decorative sheet against the butt end while or after heating, the hot melt adhesive that has solidified on the back side of the front excess portion of the decorative sheet is remelted, and the adhesive is used to press the front excess portion of the decorative sheet. The fourth step is to attach the excess part to the butt end,
A method for producing a decorative board, comprising: 2. The method for manufacturing a decorative board according to claim 1, wherein the substrate has a butt-end shape having a front side convex part and a back side convex part protruding from the front side convex part. 2. The method for manufacturing a decorative board according to claim 1, wherein the substrate has a butt end shape with a concave portion. Any one of claims 1 to 3, characterized in that, in the second step, cold air is blown to the front surplus portion of the decorative sheet to cool and solidify the hot melt adhesive applied to the back surface of the front surplus portion of the decorative sheet. The method for manufacturing the decorative laminate described in . In the fourth step, hot air is blown against the front excess portion of the decorative sheet that is in contact with the end shape in the third step, and is solidified on the back side of the front excess portion of the decorative sheet. 4. The method for producing a decorative laminate according to claim 1, further comprising remelting the hot melt adhesive . 4. The method for manufacturing a decorative laminate according to claim 1 , wherein a handle is formed on the surface side of the end of the substrate so that the handle can be pulled by placing a finger thereon. 4. The method for manufacturing a decorative board according to claim 1, wherein in the first step, a decorative sheet is attached to the surface of the substrate and the tip of the convex portion on the surface side of the butt end .