JPS6346580Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to decorative panels for siding, and there is no whitening or cracking at the corners of the decorative panels.
Moreover, the present invention provides a decorative siding board in which a decorative sheet is laminated continuously from the upper surface of the decorative board to the bottom part of the openwork and the side part of the openwork.

Various types of siding decorative boards have been proposed in the past, but most of them do not have a continuous decorative layer as shown in FIG. 1, and are unsatisfactory both in terms of design and performance.

That is, as shown in FIG. 1, the decorative sheet 1 was adhered only to the top surface 3 of the base material 2, and the bottom portion 4 of the opening was only coated. Therefore, when a plurality of siding panels are connected and actually constructed as shown in FIG. 2, the pattern on the top surface part 3 is interrupted at the openwork part 6, and the openwork side part 5 is not connected to the base material 2. had been exposed. In order to solve this problem, it is possible to cover the entire top surface, bottom of the opening, and sides of the opening with a decorative sheet, but if the pattern is continuous and water resistance is taken into consideration, then In order to minimize seams, it is necessary to continuously cover the top surface, the bottom of the opening, and the side of the opening with one decorative sheet. However, the decorative sheets that have been used traditionally,
Since natural wood veneers, patterned films, decorative paper, etc. are used, when laminated to uneven surfaces such as paneling, veneers cannot be laminated continuously. In the case of a decorated film, if it is thin, unevenness of the base material or uneven application of adhesive will appear on the decorative surface, and if it is thick, the bottom corners etc. will not fit completely and will stand out.
Also, the corners may become white or cracks may occur. In the case of decorative paper, paper breaks and scratches occur at the corners. Because of the following drawbacks, it was not possible to attach a decorative sheet to the entire surface.

The present invention has been made to solve the above problems, and uses a decorative sheet with a desired pattern applied to mixed paper and a layer of thermoplastic resin on top of the decorative sheet, to create a siding panel with an open pattern. This is a decorative feather board made by continuously laminating the entire decorative surface consisting of the top surface of the base material, the bottom part of the opening, and the side part of the opening.

Next, the present invention will be explained in detail with reference to the drawings.

First, as shown in FIG. 3, a desired pattern 8 is applied to a synthetic resin mixed paper 7, and a thermoplastic resin layer 9 is placed on top of the desired pattern 8.
A freshly formed decorative sheet 10 is created.

Next, this decorative sheet is bonded to the base material 2 via the adhesive 11 to form a decorative siding board 12 as shown in FIG.

An example of this method of bonding and machining is shown in Section 5.
As shown in the figure. That is, as shown in FIG. 5a, first the base material 2 is
Then, the decorative sheet 10 is pasted together in a three-way wrapping method as shown in b, or it is pasted in a four-way wrapping method as shown in c, and then a tanning process is applied to form the male tane 13. A female tongue 14 is formed.

Synthetic resin mixed paper has the flexibility to withstand rolling processing due to the resin it contains, and also has good performance as a paper quality, so it is suitable for lamination with base materials. ,
If the basis weight is 40g/ ^m2 or less, the wood grain etc. on the surface of the base material may be visible through the base material to be laminated,
Alternatively, unevenness of the base material or uneven application of the adhesive may appear as unevenness on the surface of the decorative sheet. Also
A value of 100 g/m ² or more is not only unnecessary and results in excessive quality, but also may make it difficult to wrap the decorative sheet from the top surface to the side portions of the opening and the bottom of the opening. For this reason, one with a basis weight of 40 to 100 g/m ² is used. This is because, within this range, wood grains etc. will not be seen through, and unevenness of the base material and uneven application of adhesive will not appear on the surface of the decorative sheet.

The desired pattern may be a wood grain pattern, an abstract pattern, or any other desired pattern.

The thermoplastic resin layer is adjusted to have a thickness of 50 to 200 microns by applying a resin capable of forming a flexible film, such as vinyl chloride resin. This thickness
If it is less than 50μ, the surface performance will be poor, and if it is more than 200μ, the entire decorative sheet will become thick and may be difficult to roll into, which is not preferable. In addition, this thermoplastic resin layer may be embossed using an embossing plate or the like, or by adding a matting agent to the resin or adjusting the gloss of the surface of the embossed plate, the decorative sheet can be embossed. It is also possible to adjust the surface gloss.

As described above, a decorative sheet made of synthetic resin mixed paper with a basis weight of 40 to 100 g/m ² and a thermoplastic resin layer formed to a thickness of 50 to 200 μm has an upper surface portion 3, a transparent side surface portion 5, It can be laminated continuously to the bottom part 4 of the openwork, and in this case, it stretches sufficiently at the corners, so there is no whitening or cracking, and it does not lift up at the corners, so it can be attached to the decorative surface of the base material 2. It adheres closely and allows good makeup to be applied to the entire makeup surface.

Furthermore, the wood grain of the base material 2 is not visible through the base material 2, and its unevenness is not reproduced as unevenness on the surface of the decorative sheet.

In the siding decorative board of the present invention constructed as described above, the top surface, the bottom part of the opening, and the side part of the opening are covered with the same decorative sheet along the shape of the base material, so a plurality of sheets can be connected. When used, the pattern is continuous and there are no exposed or visible parts of the base material, so it is possible to obtain a high-quality finish due to the printed pattern, and the surface properties such as water resistance are also good.

<Example> A teak wood grain pattern was gravure printed using salt-vinyl acetate ink on acrylic resin mixed paper (resin content 12%) with a basis weight of 55 g/ ^m2 , and a film of vinyl chloride paste with the following composition was applied. After coating and drying to a thickness of 100μ (dry), a wood-grained conduit plate was used to emboss conduit grooves and adjust the surface gloss to obtain a highly flexible decorative sheet.

Next, the decorative sheet was laminated to a 7 mm thick siding plywood panel with an opaque finish using an ethylene vinyl acetate adhesive in a three-way wrapping method.

Thereafter, after a curing period, a siding process was applied to obtain a decorative siding board.

Vinyl chloride paste composition {vinyl chloride resin 100 parts by weight DOP 60〃 Ca-Zn stabilizer 2.5 〃 Calcium carbonate 15 〃 }

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional decorative siding board, and Figure 2 is a cross-sectional view of the conventional decorative siding board in a state where it is connected.
Fig. 3 is a cross-sectional view showing an example of the decorative sheet of the present invention, Fig. 4 is a cross-sectional view showing an example of the decorative siding board of the present invention, and Fig. 5 is an example of the method of laminating and tanning the decorative sheets. Each explanatory diagram is shown below. DESCRIPTION OF SYMBOLS 1... Decorative sheet, 2... Base material, 3... Upper surface part, 4... Open-cut bottom part, 5... Open-cut side part, 6... Open-cut part, 7... Synthetic resin mixed paper, 8... ...Pattern, 9...Thermoplastic resin layer, 10
... Decorative sheet, 11 ... Adhesive, 12 ... Decorative siding board, 13 ... Male surface, 14 ... Female surface.

Claims (1)

[Scope of utility model registration request] A desired pattern is applied to synthetic resin mixed paper with a basis weight of 40 to 100 g/ ^m2 , and a thermoplastic resin layer of 50 to 100 g/m2 is applied on top.
A decorative siding board made by continuously laminating a decorative sheet formed to a thickness of 200 μ over the entire decorative surface consisting of the top surface of a textured base material, the textured bottom, and the textured side surface.