JP3186317B2 - Manufacturing method of decorative board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a decorative board in which transfer is performed on a decorative board base having an uneven surface in synchronization with the unevenness, and particularly to a method of efficiently manufacturing a decorative board having a high design property. About.

[0002]

2. Description of the Related Art Conventionally, various decorative panels have been used for exteriors and interiors of houses, and as furniture members. It has come to be liked. Conventionally, in the case of a product having a flat surface, as a method of providing a pattern on the surface, for example, laminating a sheet on which a pattern is printed,
However, when the surface has irregularities, a simple method such as painting a single-color paint or sprinkling a sand-like material has to be used.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems, and an object of the present invention is to provide a decorative plate substrate having irregularities on its surface, which is synchronized with irregularities. An object of the present invention is to propose a method for efficiently producing a decorative board having a high design property.

[0004]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a method for manufacturing a decorative board, in which a transfer is performed on a decorative board base having an uneven surface in synchronization with the unevenness.
(1) On the transfer film, a sensor mark used for positioning the film in the feed direction and a sensor mark used for positioning the film in the feed direction and the vertical direction are provided.
(2) reading the sensor mark provided on the transfer film; (3) performing feedback control on the state between the unwinding of the transfer paper and the transfer roll based on the reading; The present invention provides a method for manufacturing a decorative board, characterized in that the timing of supplying a transfer roll of a decorative board substrate having irregularities is feedback-controlled based on the reading of the sensor, and a transfer roll is provided. That the surface temperature of the first of the transfer rolls is lower than the softening point of the resin constituting the base film of the transfer film, and that the transfer rolls have different hardnesses. And a method for producing a decorative board.

Hereinafter, the present invention will be described in detail. Although the configuration of the transfer film used in the present invention is not particularly limited, the configuration of the cross section thereof is as shown in FIG.
What provided the peeling varnish layer 2, the pattern layer 3, and the adhesive layer 4 in order on the surface of the base film 1, etc. can be used.

As shown in FIG. 2, an example of the sensor marks used for the two types of positioning provided on the transfer film of the present invention is, apart from the picture 5, a position in the film feed direction at the time of transfer. Sensor mark 6 for alignment
And a sensor mark 7 for film feeding and vertical alignment.

Hereinafter, a method for manufacturing a decorative board according to the present invention will be described with reference to FIG.
A detailed description will be given in accordance with an embodiment of the manufacturing apparatus used in the present invention shown in FIG. Two optical sensors are provided between the transfer film unwinding shaft 8 and the first transfer roll 9. A sensor 10 for reading the sensor mark 7 for controlling the film feeding and the vertical direction, and a sensor 11 for reading the sensor mark 6 for controlling the film feeding direction.

The information read by the transfer film feed and vertical control sensor 10 is fed back to the transfer film feed of the unwinding shaft 8 and the vertical position setting mechanism to feed the transfer film of the transfer film 12. And always keep the vertical position constant.

On the other hand, information read by the control sensor 11 for the transfer direction of the transfer film is fed back to the brake mechanism of the unwinding shaft 8 and the decorative board substrate 1
The feedback is also provided to the drive mechanism of the conveyor 14 for three conveyances and to the drive mechanism of the stopper 15 for unloading the decorative board substrate 13 heads.

On the other hand, if only one transfer roll is used, unevenness often occurs, which causes elongation of the transfer film, distortion due to unevenness, and the like. Therefore, it is preferable to use a plurality of rolls.

In the case of thermal transfer, the first roll 9
If the heating is too high, the transfer film may be stretched and alignment may not be performed properly. Therefore, it is desirable to keep the temperature of the roll below the softening temperature of the transfer film. In this case, the substantial transfer (following and contacting the unevenness) is performed by the second and subsequent rolls 1 that have been sufficiently heated.
6 will be performed. Further, the picture 5 by printing is formed based on a design in which elongation at the time of transfer is calculated in advance.

Further, by providing a difference in the hardness of the transfer roll, the transfer can be performed by the softer roll in such a manner that the transfer film completely follows the unevenness of the decorative board substrate.

After the completion of the transfer, the base film of the transfer film is peeled off as shown in FIG.
It is possible to obtain a decorative board in which the pattern and the unevenness are synchronized. If necessary, a top coat is applied on this.

[0014]

As described above, according to the present invention, the film feeding direction is adjusted by synchronizing the transfer film feeding timing and the decorative board base material feeding timing. By always keeping the position in the direction constant, it is possible to perform synchronized transfer of the pattern and the unevenness.

Further, by using a plurality of rolls, more complete transfer can be performed. In the case of hot-pressure transfer, the temperature of the first roll is maintained at a temperature lower than the softening temperature of the transfer film. To make it easier, and
By providing a difference in the hardness of the transfer roll, the transfer can be performed with a softer roll in such a manner that the transfer film completely follows the unevenness of the decorative board substrate.

[0016]

EXAMPLE A polyvinyl butyral resin was applied as a release layer to the surface of a semi-rigid vinyl chloride sheet having a thickness of 75 μm, and then a gravure printing method was performed by a gravure printing method using an ink containing vinyl chloride-vinyl acetate resin as a binder. Then, a polyester film was applied as an adhesive layer to prepare a transfer film. As shown in FIG. 2, this transfer film was provided with a film feed and a sensor mark for controlling the film feed and vertical direction separately from the picture by printing.

On the other hand, a fiber reinforced cement board was prepared in which the same embossing as that of the printed pattern was embossed and embossed.

Both of them were introduced into a transfer device having three (only two are shown in the figure) transfer rolls, a transfer of a transfer film, and a transfer film transfer and a vertical position control mechanism as shown in FIG. . The hardness and surface temperature of the three rolls are shown below.

[0019]

After the transfer, the integrated decorative plate was cooled to a surface temperature of 10 ° C. by air cooling, and the base film of the transfer film was peeled off. The fiber reinforced cement board thus obtained is
The stone-tone embossing and the pattern of the stone-tone by the transfer synchronized with the concavo-convex pattern were well harmonized, and the design effect was extremely high.

[0021]

As described above, according to the method for manufacturing a decorative board of the present invention, it is possible to impart a beautiful picture synchronized with the uneven pattern to the surface of various decorative boards having an uneven surface. In particular, it has become possible to efficiently apply a decorative pattern synchronized with the uneven pattern on the uneven surface of a decorative board having a brick, tile, or stone-like embossed pattern.

[0022]

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a cross-sectional configuration of a transfer film used in the present invention.

FIG. 2 is an explanatory view showing one embodiment of a plane configuration of a transfer film used in the present invention.

FIG. 3 is an explanatory view showing one embodiment of a decorative board manufacturing apparatus used in the present invention.

FIG. 4 is an explanatory view showing peeling of a base film of a transfer film according to one step of the production method of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base film 2 ... Release layer 3 ... Picture layer 4
... Adhesive layer 5 ... Picture 6 ... Sensor mark for film feeding direction control 7 ... Sensor mark for film feeding and vertical direction control
DESCRIPTION OF SYMBOLS 8 ... Unwinding shaft 9 ... Transfer roll 10 ... Sensor for controlling film feed and vertical direction control 11 ... Sensor for controlling film feed direction 12 ... Transfer film 13 ... Decorative board substrate 14 ... Conveyor 15 ... Stopper 16 ... Transfer roll

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B32B 33/00 B44C 1/17

Claims (3)

(57) [Claims] 1. A method of manufacturing a decorative board, in which transfer is performed on a decorative board substrate having unevenness on the surface in synchronism with the unevenness, the method comprising: (1) use for positioning a film in a feeding direction on a transfer film; (2) reading the sensor mark provided on the transfer film, and (3) unwinding the transfer paper and transferring the transfer roll. (4) The feedback control of the timing of supplying the transfer roll of the decorative plate substrate having the irregularities on the surface is performed based on the reading of the sensor. A method for manufacturing a decorative board characterized by the above. 2. A method of manufacturing a decorative sheet, wherein a transfer is performed in synchronization with unevenness on a decorative sheet substrate having an uneven surface, wherein a plurality of transfer rolls are provided, and a first roller among the plurality of transfer rolls is provided.
Temperature of the base film of the transfer film
A temperature lower than the softening point of the resin to be processed. 3. An uneven surface on a decorative sheet substrate having an uneven surface.
A method of manufacturing a decorative board for performing transfer in synchronization, comprising:
And there are differences in the hardness of the plurality of transfer rolls.
A method for producing a decorative board, characterized by making a veneer.