JPS6123113B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] This invention relates to a method for manufacturing decorative building materials.

[Background technology]

Conventionally, as shown in Fig. 1, a flat groove-shaped molded plate 1 (rib) made of hard vinyl chloride resin, etc.
A pattern 2 is printed on the surface of the molded plate 1 by gravure offset printing, and the pattern 2 is further embossed using molds 3 and 4 as shown in FIGS. 2 and 3 to give an uneven pattern 5. As shown in FIG. 1, hard urethane foam 6 is filled in the grooves on the back surface to produce a building material that is both heat insulating and decorative.

However, in order to emboss a molded plate 1 made of hard vinyl chloride resin with molds 3 and 4 as shown in Fig. 3, high pressure is required, and the strength of the molded plate 1 decreases at the embossed portion. Further, when the embossed surface has a deep unevenness, there is a problem that the molded plate 1 becomes constricted at the boundary between the embossed portions and is damaged or cut.

[Purpose of the invention]

An object of the present invention is to provide a method for manufacturing a decorative building material that has a sufficiently clear uneven pattern, has a high decorative effect, and has excellent strength.

[Disclosure of the invention]

In the method for manufacturing decorative building materials of the present invention, a soft sheet-like material is adhered to the surface of a hard molded board, and then an uneven pattern is formed on the surface of the soft sheet-like material by embossing, and then the back side of the molded board is It is characterized by having a heat insulating foam layer provided thereon.

As described above, according to the present invention, since an uneven pattern is not directly formed on the surface of the hard molded plate, it is possible to prevent deformation and constricted portions caused by embossing on the molded plate and a decrease in strength. . Furthermore, since the sheet-like material adhered to the surface of the hard molded plate is soft, an uneven pattern can be easily provided by embossing or the like. Furthermore, since this soft sheet-like material is backed and reinforced with a hard molded plate, it is possible to form an uneven pattern with a clear outline.

Embodiment An embodiment of the present invention will be described based on FIGS. 4 to 7. That is, in this method of manufacturing decorative building materials, a soft sheet material 1 is placed on the surface of a hard molded board 7.
0 (for example, a soft polyvinyl chloride sheet), an uneven pattern is formed on the surface of this sheet-like material 10 by embossing, and then a heat-insulating foam layer 8 is provided on the back surface of the forming plate 7. be.

As shown in FIGS. 4 and 5, the molded plate 7 has a groove shape having shallow grooves on the back surface formed by an extrusion molding machine using a hard synthetic resin (polyvinyl chloride, etc.). It is a molded plate. A color pattern 9 is drawn in advance on the surface of the molded plate 7 by gravure offset printing or the like, and a soft sheet-like material 10 is adhered to the upper surface thereof.

The soft sheet-like material 10 is composed of a colored transparent sheet, and covers the color pattern 9 on the surface of the molded plate 7 to improve the durability of the color pattern 9.

To form an uneven pattern on the surface of the soft sheet-like material 10, first, the molding plate 7 is placed on the lower mold 12 whose upper surface is flat as shown in FIG. 6, with the groove facing downward. do. Then, as shown in FIG. 7, an upper mold 14 having an uneven portion 13 and heated to a temperature of 40° C. or higher is pressed against the surface of the soft sheet-like material 10, and an uneven pattern is embossed onto the soft sheet-like material 10. Grant. In this case, the soft sheet material 1
Due to its properties, 0 can easily provide a semi-permanent uneven pattern without using high temperature and high pressure.
Next, a foamable resin (urethane resin, etc.) is injected into the grooves of the molded plate 7 with the grooves facing up, and a foaming treatment is performed to form a heat insulating foam layer 8, thereby obtaining a decorative building material with heat insulating properties.

The uneven pattern includes recesses 1 in the portions of the soft sheet-like material 10 that correspond to the color patterns 9 and in the portions that will serve as joints.
1, giving the color pattern 9 a three-dimensional effect with an excellent decorative effect. The depth of the concave portion 11 having the uneven pattern can be set to an arbitrary depth by selecting the thickness of the soft sheet-like material 10.

Because the molded plate 7 is manufactured in this way, it is only printed with a pattern and is not deformed or constricted due to embossing, so there is no decrease in strength, and the uneven pattern on the surface of the soft sheet can be easily imparted. In addition, when deep unevenness is required, it can be made arbitrarily by selecting the thickness of the soft sheet-like material 10. Furthermore, since the soft sheet-like material 10 has a low softening temperature and low hardness, embossing can be performed at low pressure and low temperature, and the molded plate 7 is not strained, and there is no deformation or dimensional change during use. This has the advantage of eliminating the fear that this may occur.

Note that if a surfactant such as a metal salt is added to the soft sheet material 10 in advance and the soft sheet material 10 is subjected to a hydrophilic treatment, an excellent dew condensation prevention effect can be obtained due to the synergistic effect with the heat insulating foam layer 8. can get.

〔Effect of the invention〕

According to the present invention, since an uneven pattern is not directly formed on the surface of the hard molded plate, it is possible to prevent deformation and constricted portions caused by embossing on the molded plate and a decrease in strength. Furthermore, since the sheet-like material adhered to the surface of the hard molded plate is soft, an uneven pattern can be easily provided by embossing or the like. Furthermore, since this soft sheet-like material is backed and reinforced with a hard molded plate, it is possible to form an uneven pattern with a clear outline.

[Brief explanation of the drawing]

Fig. 1 is a cutaway perspective view of a conventional decorative building material, Fig. 2 is a perspective view for explaining its manufacturing method, Fig. 3 is a sectional view of its main part, and Fig. 4 is a decoration in an embodiment of the present invention. FIG. 5 is a cutaway perspective view of the building material, FIG. 5 is a sectional view thereof, FIG. 6 is a perspective view for explaining the manufacturing method thereof, and FIG. 7 is a sectional view of the main part thereof. 7... Hard molded plate, 8... Heat insulating foam layer, 10... Soft sheet-like material.

Claims (1)

[Claims] 1. After pasting a soft sheet-like material on the surface of a hard molded plate, embossing the surface of the soft sheet-like material to form an uneven pattern, and then providing a heat insulating foam layer on the back side of the molded board. A manufacturing method for distinctive decorative building materials.