JPS60174603A - Manufacture of colored wood - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 This invention relates to a method for producing colored wood.

[Background technology]

Conventionally, a method for making the grain of wood clearer was to apply a coloring agent to the wood to darken only the summer wood. However, with this method, the entire wood tends to become dark colored due to the coloring treatment, and a sufficient effect for clarifying the grain of the wood cannot be obtained.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing colored wood that can clearly express the grain between the spring wood and summer wood.

[Disclosure of the invention]

The inventor has made extensive studies to achieve the above objectives. As a result, when attaching resin-impregnated sliced veneer to plywood to obtain wood, the above objective can be achieved if at least the impregnated resin and adhesive contain a coloring agent. discovered this and completed this invention.

This invention is a method for manufacturing wood in which a sliced veneer impregnated with resin is attached to a plywood surface via an adhesive,
The gist of the present invention is a method for producing colored wood, characterized in that at least the adhesive contains a desired coloring agent among the impregnating resin and the adhesive. Hereinafter, this invention will be explained in detail based on the drawings.

As shown in FIG. 1, a veneer 2 is sliced from a log flitch 1 (the thickness of the slice is, for example, 0.35 mm). As shown in Fig. 2, after drying the veneer 2 using high frequency, the veneer (not shown) is placed in a container 3 shown in Fig. 3, and a pigment as a coloring agent is poured into the container 3. A synthetic resin such as polyester resin is poured into the container and impregnated into the veneer inside the container. A sliced veneer impregnated with resin becomes translucent because the spring wood is well impregnated with resin, and opaque because the summer wood is difficult to impregnate with resin. Therefore, there is a difference in transparency between the spring wood part and the summer wood part. In the figure, 4 is a resin inlet, and 5 is an air outlet.

The resin-impregnated sliced veneer 2' is dried by high frequency drying or the like, as shown in FIG. On the other hand, as shown in FIG. 5, an adhesive 7 containing a coloring agent is applied onto the base plate 6. At this time, the coloring agent of the adhesive 7 is made to be different from the coloring agent contained in the synthetic resin for impregnation (not shown). Next, as shown in FIG. 6, the aforementioned resin-impregnated sliced veneer 2' is adhered onto the base plate 6. In this adhesive body 8, the spring wood part of the veneer 2' is translucent and the summer wood part is opaque, so the grain of the wood becomes clear and a unique color tone never seen before. This allows the grain of the wood to be expressed. As shown in FIG. 6, the end of the adhesive body 8 is taped with tape 9, and as shown in FIG.
After applying the polyester resin auxiliary liquid 10 to the adhesive body 8 by flowing it down from the tank 12, as shown in FIG. Heat and press. After that, as shown in Fig. 9, the surface of the adhesive body 8 is sanded with a belt sump 11 and 11 (fabric sump), and as shown in Fig. 10,
An undercoat is applied using a roll coater 14. Continuing,
After performing far-infrared drying on the adhesive body 8, actual processing is performed as shown in the plan view of Fig. 11, and as shown in Fig. 12, the surface of the processed product 8' is sanded with a belt sump 11. (finish sump), as shown in Figure 13.
Using a coating machine 14, the surface of the processed product 8' is coated with clear lacquer. Alternatively, it may be applied using a brush. In FIGS. 11 to 13, 16 is the real part. After this processed product is steam-dried, it is sent for inspection, completed, and packaged.

When applying an adhesive containing a colorant to plywood, if you use a colorant that is similar in color to the colorant that is impregnated into the veneer, it is possible to express depth in the wood grain of the adhesive (colored wood).

In addition, even if you add a process of dyeing the veneer after slicing it from log flinch, if the veneer does not have uneven dyeing and a sufficient density is obtained, it is possible to dye the veneer during resin impregnation. There is no need to add any agent. In that case, the veneer drying before resin casting may be performed by a drying method other than high frequency drying.

After slicing the veneer from the log flitch, the 14th
As shown in the figure, the group of sliced veneers may be immersed in a bleaching tank 16 using a hanger 15 to bleach the veneers 2 . . . . The slice veneer to be bleached may be chemically dyed in advance. At this time, the spring wood part of the veneer is easily bleached, but the summer wood part is difficult to bleach. Therefore, the grain of the wood becomes clear. In addition, when impregnating colored resin mixed with pigment in a later process, the spring wood part that is easily impregnated with resin is more likely to be colored, and the summer wood part that is difficult to impregnate with resin is less likely to be colored. It becomes possible to color the wood part and the summer wood part in any two colors, and the grain of the wood can also be made clearer.

Note that if a foamed resin liquid (such as Sumiatubu T833 (Niren Kako)) is used as the resin to impregnate the sliced veneer, the grain of the adhered body (colored wood) will be more clearly expressed.

〔Effect of the invention〕

As described above, the present invention provides a method for producing wood in which a sliced veneer impregnated with a resin is adhered to the surface of a base plate through an adhesive, and the method includes at least one of the impregnated resin and the adhesive. This invention is characterized by containing a desired coloring agent, and since there is a difference in the degree of resin impregnation between the spring wood part and the summer wood part of the veneer, according to the present invention, the above-mentioned colorant is added to the surface of the base plate. The effect of the colored wood, which is made of a bonded body to which boards are bonded, is that the grain of the wood is made clearer than before. Additionally, since the plywood is coated with an adhesive containing a coloring agent, the colored wood, which is the bond between the dyed veneer and the plywood, has the effect of increasing the depth of the wood grain tone. .

[Brief explanation of the drawing]

1 to 4 are perspective views illustrating each veneer processing step in the method for producing colored wood according to the present invention, and FIG. 5 is a side view illustrating the processing steps for plywood in the method for producing colored wood according to the present invention. 6 and 7 are respectively perspective views illustrating the process of processing the bonded body of the veneer shown in FIG. 4 and the base plate shown in FIG. 5, and FIGS.
Figure 11 is a side view illustrating each processing step of the adhesive body shown in Figure 6. Figure 11 is a plan view showing the state of the adhesive body shown in Figure 6 after actual processing. Figure 12 is a side view of the adhesive body shown in Figure 6. FIG. 13 is a side view illustrating the process of finishing the body with sand mites, FIG. 13 is a perspective view illustrating the top coating process of the adhesive body shown in FIG. 6, and FIG. It is a perspective view explaining one process. 1... Log flitch 2... Sliced veneer 2'.
... Resin-impregnated sliced veneer 6... Base plate 7... Adhesive 8... Adhesive agent Patent attorney Takehiko Matsumoto

Claims (4)

[Claims] (1) A wood manufacturing method in which a sliced veneer impregnated with a resin is adhered to a plywood surface via an adhesive, wherein at least the impregnated resin and the adhesive contain a desired coloring agent. A method for producing colored wood characterized by: (2) The method for producing colored wood according to claim 1, wherein the sliced veneer is bleached. (3) The method for producing colored wood according to claim 1 or 2, wherein the resin is a polyester resin. (4) The method for producing colored wood according to any one of claims 1 to 3, wherein the resin is a foamed resin.