JPS5818201B2 - How can I help you? - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing decorative plywood with an extremely excellent wood texture and grain texture.

In the past, various attempts have been made to use plywood, especially lauan plywood, to create artificial wood grains by making use of the remaining conduit groove recesses by not making the seals completely smooth on the plywood. This is what has been done.

However, in general, most natural precious woods are ring-pored wood, and the conduit grooves (holes) appear regularly along the grain of the wood.The arrangement of these conduit grooves is extremely elegant, giving it a unique beauty. This is what it represents.

The lauan wood that makes up lauan plywood, on the other hand, is a diffusely porous material and does not have the above-mentioned unique arrangement of conduit grooves. However, it is difficult to produce a satisfactory product.

Recently, as the most advanced method, attempts have been made to form conduit groove recesses using an embossing roll in order to express the unique arrangement of conduit grooves.

However, although this method is certainly superior to the former, it causes a great loss of equipment and increases costs.
In addition, it is technically impossible to machine each delicate conduit groove convex part on the roll surface, and the conduit groove concave part formed by stamping is several times larger than the actual conduit groove concave part. It was thick, which was not desirable in pursuit of wood texture and wood grain.

The present invention solves the above-mentioned drawbacks and provides a decorative plywood with an extremely excellent wood feel and wood grain feel. That is, the present invention provides a decorative plywood with an extremely excellent wood texture and grain feel. While this is still wet, a water-based mouth sealant is applied to the entire surface of the wood, and after drying, sanding or puffing is performed to remove the sealing film that covers the wood grain pattern. The present invention relates to a method for manufacturing decorative plywood, which is characterized in that a smooth sealing coating film is formed on other parts of the decorative plywood.

To explain this from the drawings below, Figs. 1 to 3 show cross-sectional views of main parts at the manufacturing stage, 1 is a plywood board, 2 is a conduit groove thereof, and such a plywood 1 is first shown in Fig. 1. A wood grain pattern 3 is formed using an oil-based colored seeker as shown in FIG.

The wood grain pattern 3 may be formed by printing or painting.

The colored sheet penetrates into the plywood and becomes fixed.

Next, as shown in FIG. 2, before this is dried, that is, in an undried state, a water-based sealant is used to apply sealant coating.

The sealant coating is performed using a known straight blade or reverse roll, and the sealant is embedded in the conduit groove.

4 shows the sealing coating film. At this time, since wood grain pattern 3 is an oil-based sheet and the sealant is water-based, the sealant coated on the wood grain pattern repels the seal, and the area other than wood grain pattern 3 is coated on the plywood surface. It is well marked and fixed, but in this part of the wood grain pattern it is fixed in an unstable state, or part of it is completely scraped off, and then it is dried, sanded or puffed over it, and the As shown in Figure 3, the wood grain pattern 3 is exposed and a smooth sealing coating 4 is applied to other parts.
to form.

In the present invention, the filler may be a colored filler colored to the background color of the wood, or a desired wood color may be printed using a printing machine after the above steps. .

Of course, it is also good to top coat with a transparent resin coating at the end.

The present invention is as described above and has the following effects.

In other words, a wood grain pattern was formed using oil-based colored sheets, and while it was still wet, a water-based sealant was applied to the entire surface of the pattern, so that the sealant covered with the oil-based sheet was water-resistant. Due to the reaction between oil and oil, it is removed without being fixed on the oil-based sealer. On the other hand, the sealant that covers areas other than the oil-based sealer (other than the wood grain pattern) is fixed to the seal as usual, creating a firm and smooth seal. A coating is formed.

As a result, as shown in Fig. 4, the woodgrain pattern 3 is colored and exposed in the form of a band, and a large number of synthetic conduit groove recesses 2 are formed running therein, and this external shape is a genuine conduit groove. In addition, since the part other than the wood grain pattern 3 is formed as a smooth surface, the material as a whole closely resembles natural ring-pored material, and it is possible to manufacture decorative plywood with an extremely excellent wood feel and wood grain window. It is.

Example 5 Oni's lauan plywood was used, and a wood grain pattern was formed on its surface by screen printing using Coloring Sheet 2 containing Masu Nagayu alkyd resin as a vehicle.

Next, while this is still wet, an acrylic resin emulsion sealant is used to coat the entire surface with a reverse roll coater, and after this is dried, it is sanded, and then a printing machine is applied on top of this. Then, the desired decorative plywood was manufactured by printing other wood color patterns and finally applying a top coat of transparent amino alkyd resin.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIGS. 1 to 3 show cross-sectional views of essential parts at the manufacturing stage of decorative plywood, and FIG. 4 shows a plan view of the decorative plywood manufactured according to the present invention. In the figure, 1 is plywood, 2 is its conduit groove recess, 3 is wood grain pattern,
4 indicates a sealing coating film.

Claims (1)

[Claims] 1. A wood grain pattern is formed on the plywood surface using an oil-based colored sheet, and while it is still wet, a water-based sealant is applied to the entire surface of the plywood, and after drying, sand or puff is applied over this. A method for producing decorative plywood, which comprises applying the wood grain pattern, removing the seal coating film covering the wood grain pattern, exposing the wood grain pattern, and forming a smooth seal coating film on other parts.