JPS60225701A - Manufacture of dyed veneer and decorative veneer - 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] The present invention relates to a method for manufacturing dyed veneers and decorative veneers.

[Background technology, 1. A conventional manufacturing method for decorative small boards that artificially creates a wood grain pattern e. In this case, a material veneer is dyed in a desired color, and the dyed veneers obtained are laminated and bonded. They created a laminated flitch and sliced it to obtain decorative veneers. At that time, dyeing of the material veneer is done by applying dye solution to the material veneer and impregnating it with i amount.
Multiple sheets of veneer were stacked, sandwiched between both sides by plates (pallets), and heated to create a dyed veneer that was uniformly dyed in the thickness direction.

However, this dyeing method has the problem that heating takes a long time and consumes more thermal energy than necessary.

[Purpose of the invention]

An object of the present invention is to provide a method for producing dyed veneers and decorative veneers, which can produce dyed veneers quickly and with high thermal efficiency, thereby reducing the manufacturing cost of decorative veneers. be.

[Disclosure of the invention]

The method for producing dyed veneers of the present invention is characterized by stacking a plurality of material veneers coated with or impregnated with a dye solution, sandwiching them between a pair of hollow plates and heating them. It is something to do.

In addition, the method for producing decorative veneers of the present invention involves stacking a plurality of material veneers coated with or impregnated with a dye solution, sandwiching them between a pair of hollow boards and heating them to produce dyed veneers. A step of laminating a plurality of the dyed veneers via an adhesive and press-bonding them to create an assembled flitch, and a step of forming the assembled flitch.

A first embodiment of the present invention will be described based on FIGS. 1 to 3.

FIG. 1 shows a state in which a plurality of material veneers 1 (printed veneers) coated or impregnated with a dye solution are stacked up, sandwiched from both sides by plate bodies 2, and heated.

FIG. 2 is a perspective view showing the shape of the plate 2 used in this invention. As shown in this figure, the plate 2 has a cavity 4 formed inside thereof, which is made up of a large number of through holes 3 arranged in parallel along the width direction or the length direction. The interior is mostly occupied by the cavity 4.

Since the raw material veneer 1 is sandwiched between the plates 2 having the cavities 4 in this way, the temperature of the veneer increases easily during heating, and dyeing can be carried out in a short time. This saves thermal energy and improves work efficiency. By the way, the thickness is 1m.
When multiple veneers of the same material were sandwiched between plates with cavities and heated and dyed, the time required for the temperature of the veneers to rise to 100℃ compared to when plates without cavities were used. is 3
The time was shortened by 0 minutes, and the staining effect was also improved.

Note that the material of the plate body 2 and the shape of the through hole 4 are not particularly limited. Moreover, the heating may be either wet heat (steaming heating, etc.) or dry heat.

As shown in Fig. 3 (2) to 0, the obtained dyed veneers are laminated with adhesive and pressed and bonded with a concave-convex die 6 (f or flat die) to form a flitch. A decorative veneer 8 is obtained by slicing the veneer 7 from a predetermined direction. In FIG. 3, 5 is a dyed veneer.

A second embodiment of the invention will be described with reference to FIGS. 4 to 6. That is, in this embodiment, as shown in FIG. 4, a large number of through holes 10.degree. and 10' of different sizes are provided in the plate 9 along its width or length.

As shown in FIG. 5, when such a plate body 9 is used to sandwich and heat a material veneer l coated with or impregnated with a dyeing solution, temperature unevenness occurs within the single veneer l; As a result, as shown in FIG. 6, the dyed veneer 11 obtained has color unevenness in which dark colored portions 12 and light colored portions 13 are mixed.

By forming the dyed veneer 11 thus obtained into a laminated veneer as shown in FIG. 3 and slicing it, it is possible to obtain a decorative veneer rich in natural appearance with color unevenness similar to that of natural wood species on the board surface. can.

The color unevenness is caused by, for example, when a veneer material with a thickness of 1 fl is sandwiched between the plates shown in FIG. 4 and heated and dyed, the color difference ΔE between the dark and light areas in the dyed veneer is 2.3. , the appearance is also clear.

A third embodiment of the invention will be described with reference to FIGS. 7 to 9. That is, in this embodiment, as shown in FIG. 7, a large number of through holes 15 are provided in the plate 14 along its width direction or length direction, and a plurality of through holes 16 are also provided in its thickness direction. It is something.

When such a plate body 14 is used to sandwich the raw material veneer 1 as shown in FIG. 8 and heat dyeing is performed, a dyeing solution 17 with uneven coloring is obtained as shown in FIG. 9. For example, thickness I
After coating or impregnating the dye solution on the material veneer H, the seventh
When the plate shown in the figure was sandwiched and heated as shown in Figure 8, the color difference ΔE between the dark and light areas on the surface of the dyed veneer was 2.8.

Using this dyed veneer, as shown in FIG. 3, by forming it into a flitch and slicing it, a decorative veneer with uneven color and excellent natural appearance can be obtained.

〔Effect of the invention〕

According to this invention, the material veneer can be dyed quickly and with less heat energy, and the cost can be reduced when manufacturing decorative veneers using the obtained dyed veneer. There is.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention, FIG. 2 is a perspective view of a board, FIG. 3 is a process explanatory diagram showing a method for manufacturing a decorative veneer, and FIG. 4 is a perspective view of a first embodiment of the present invention. FIG. 5 is a perspective view of the plate in the heated state, FIG. 6 is a perspective view of the obtained dyed veneer, and FIG. 7 is a perspective view of the plate in the third embodiment of the present invention. Fig. 8 is a perspective view of the heated state, Fig. 9 is a perspective view of the heating state.
The figure is a perspective view of the obtained dyed veneer. 1...Material veneer, 2.9.14...Plate body, 3.10
゜10'...Through hole, 4...Cavity, 5.11.17
... Dyed veneer, 7... Laminated fringe, 8... Decorative veneer, 15... First through hole, 16... Second through hole Fig. 1 (B) Fig. 3 Figure 4 Figure 5 j Figure 6

Claims (5)

[Claims] (1) A method for producing a dyed veneer, which comprises stacking a plurality of material retaining plates coated or impregnated with a dye solution, sandwiching them between a pair of hollow plates and heating them. (2) A method for manufacturing a dyed veneer according to claim (1), wherein the cavity is a large number of through holes arranged in parallel in the width direction or length direction of the plate body. (3) The method for producing a dyed veneer according to claim (1), wherein the cavities are through holes of different sizes arranged in parallel along the width direction or length direction of the plate. (4) A patent in which the cavity comprises nine first through holes arranged in parallel along the width direction or length direction of the plate body, and one or more second through holes penetrating through the thickness direction thereof. Method 5 for producing a dyed veneer according to claim (1) (5) A step of stacking a plurality of material veneers coated or impregnated with a dye solution, sandwiching the veneers between a pair of boards having a cavity inside, and heating them to obtain a dyed veneer; A method for manufacturing a decorative veneer comprising the steps of: laminating and press-bonding a plurality of sheets of veneer through an adhesive to create a flitch assembly; and slicing the flitch assembly.