JPS58208043A - Method for manufacturing resin-impregnated wood thin plates - 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 The present invention relates to a method for producing a resin-impregnated thin wood board, which can inexpensively and efficiently produce a resin-impregnated thin wood board in which the wood grain pattern of the wood material and the printed wood grain pattern are in harmony. .

It has been known to impregnate or inject a synthetic resin liquid into a thin wood board to increase the transparency of the wood and obtain a decorative board in which the wood grain pattern of the thin wood board is clearly highlighted.

However, according to such a method, if the grain of the wood sheet is unclear, the above-mentioned effect cannot be sufficiently exhibited, and therefore a satisfactory cosmetic cannot be obtained. Treated wood thin plates are generally manufactured by immersing wood thin plates of a certain size in a resin bath or putting them into an injection pot and injecting them with resin.
The disadvantage was that it was troublesome to put and take out thin wood boards of the desired size into and out of the resin vat or injection pot one by one, and productivity was extremely low.

In order to eliminate such drawbacks, the present invention continuously unwinds a long belt-like fibrous sheet such as a non-woven fabric and coats the surface with a thickness of 0.5 mm. ! ; A plurality of pieces of wood with a diameter of less than m, then a printed pattern such as wood grain is applied to the surface of the thin wood board of the sheet-like base material, and then this sheet-like base material is passed through a resin liquid bath. The present invention provides a method for manufacturing a resin-impregnated thin wood board characterized by impregnation.

To explain the embodiment of the present invention with reference to the drawings, first, 0-
A fibrous sheet such as a long strip of nonwoven fabric wrapped in a loop shape (1
) While pulling out the adhesive (3), apply the adhesive (3) to the entire surface using the coating method (2), and then apply the adhesive (3) to the entire surface of the adhesive (3).
While proceeding with 1), in the middle of the process, apply adhesive J.
l The surface of (a) has a thickness of 0. ! ; A plurality of thin wood boards (4) (4)- having an appropriate length sliced into pieces smaller than sm
m-(4) is sequentially and continuously attached while joining the end faces facing each other in the length direction. The thin wood boards mentioned above may be those with an artificial wood grain pattern obtained by slicing laminated veneer materials.Also, when pasting, the thin wood boards of interest may be arranged in a checkered pattern and pasted. You may wear it.

The fibrous sheet (1) is one that cannot prevent resin liquid from penetrating, such as vinyl paper, rayoshi paper, chitashi paper, kraft paper, riciter paper, and 1 to 20 sheets of paper. used.

In addition, 11J of the thin wood board (4) is made of a fibrous sheet (1
), and its thickness is less than OJtmn, preferably about 0.2 m, as mentioned above, so that it can be easily bent and allows the resin liquid, which will be described later, to penetrate quickly into the interior. It is possible to do so. Incidentally, the thin wood board (4) may be colored with vermilion or bleached in advance to adjust the color tone.

Thin wood plates arranged in series in this way (4) (4)
-m- (4) produces a long sheet-like substrate (5) that is continuously lined with a fibrous sheet (1), and then prints a printing roll (6) on the way of the sheet-like substrate (5).
), a desired wood grain pattern (7) is continuously applied to the surface of the thin wood board (4) (4)-1-(4). At this time, a shading pattern may be applied on the wood grain pattern (7) using a gravure printing machine □11・□, 1° (8).

The reason for this type of printing is that clear wood grain patterns (7), such as straight grain and board grain, are applied to thin wood boards with unclear wood grain using printing rules (6), and wood grain patterns are created using shading patterns using gravure printing. This is to give a natural feel to (7), especially when the thickness is 0. ! ; Since it is difficult to express the darkness of the wood grain when the thin wood board 1 has a thickness of less than wx, the decorativeness is significantly improved by combining such printing means. In the case where thin wood boards are arranged in a parquet pattern and adhered to the surface of the fibrous sheet, a wood grain pattern that is in sync with the parquet pattern may be printed.

In addition, for the wood grain pattern on the thin wood board (4) (4)-m-(4) mentioned above, use one that will not cause the printing surface to be immersed or damaged by the resin impregnation that will be performed later. For example, a water-based ink or an ink containing cell 0-suacetate, which has excellent solvent resistance, may be used.

Next, the sheet-like base material (-ri) is introduced into the resin liquid tank (9),
The sheet-like base material (5'
) is impregnated with resin liquid Ql.

Note that the printing process and the resin liquid impregnation process may be carried out separately depending on the process, and since the printing speed is generally faster than the resin liquid impregnation speed, the sheet-like base material (5' ) is wound up into a roll shape, and then, while being pulled out, it is introduced into a resin liquid tank and impregnated with the resin liquid αQ.

At this time, the thin wood board (4) has a thickness of 0. ! ; Since it is extremely thin, less than tm, the resin liquid α1 can quickly penetrate into the inside of the fibrous sheet (1) and the thin wood board (4).

In addition, as the resin liquid αQ, diallyl lidate (DA
P), besiliganamysi (BG), Mela:Si1phenol, and other suitable thermosetting resin liquids may be used, and may be colored in any color to improve cosmetic properties.

The sheet-like base material (5r) impregnated with the resin liquid QQ is sent out from the resin liquid tank (9) and then introduced into the dry cell to heat and harden the resin. ) to obtain a resin-impregnated thin wooden board (gradient) by cutting it into desired lengths.

The resin-impregnated thin wood board (5) thus obtained is attached to the fibrous sheet (1
) sides and folded together, then hot press to a temperature of 1~/I1. S℃, pressure g ~ 30 Infection U, time 1
A desired decorative board is obtained by hot pressing under conditions of 0-20 minutes.

At this time, in order to prevent the color unevenness of the plywood or laminated paper from having an adverse effect on the surface of the decorative board, resin-impregnated thin wooden boards (
It is desirable to use white chitashi paper as the fibrous sheet (1) constituting A), and to use a pigment-added adhesive as the adhesive between the sheet (1) and the thin wood board (4).

Next, specific examples of the present invention will be shown.

Basis weight, 2! ; While removing the f/ld long strip of 20-shine woven fabric, apply vinegar-based adhesive (mixture ratio: 0) to one side using a Usanator! ; After coating, it was continuously passed through a dryer at 10°C for 7 minutes to dry to the touch, and then the nonwoven fabric surface was coated with a thickness of 0.3 wx, rl] 9″QOm, length l Za30
A plurality of Agatis matte plates of size 1.5 m are placed one after another while joining their end faces facing each other in the direction of travel, and are pressed and bonded with a press roll. Thereafter, a wood grain pattern is printed on the surface of this board to obtain a sheet-like base material, which is then wound up into a zero-roll shape.

Next, the sheet-like base material wound up into an O-ru shape is fed out and introduced into a resin liquid tank, and the DAP resin liquid (solid content SO%) is
After impregnating at a rate of 200 f/l, t, the resin was allowed to proceed while being pulled out from the resin liquid tank, and the resin was soaked in the dry cell (at a temperature of lOOO).
℃) for 5 minutes to bring it to the B stage by heat treatment, and cut it into desired dimensions with a cutter to obtain a resin-impregnated thin plate with a volatile content of -60%.

Next, this resin-impregnated wooden thin board was placed on a particle board with a thickness of 1S, and hot pressed / 3
The resin was completely cured by hot pressing for 1/2 minute to obtain a decorative board.

As described above, in the present invention, a long belt-shaped fibrous sheet such as a nonwoven fabric is fed out, and the surface of the sheet has a thickness of 0.5 mm with appropriate dimensions.
! ; After forming a long sheet-like base material that can be rolled up by sequentially bonding a plurality of thin wood boards of wx or less while joining their end faces to each other, the surface of the thin wood board of the sheet-like base material is formed. This relates to a method for producing a resin-impregnated thin wood board, characterized in that a printed pattern such as wood grain is applied to the sheet, and then the sheet-like base material is impregnated with a tree Bb liquid by passing it through a resin liquid bath. Because there is, the thickness is 00
S-■ Since the following fibrous sheets of multiple thin wood boards are lined to form a long sheet-like base material and transferred in the length direction, each thin wood board does not warp or curl. During the process, printing patterns such as wood grain can be continuously and satisfactorily applied to the thin wood plate pasted on the fibrous sheet using printing methods such as gravure or Freso printing.
This printed pattern can significantly improve the cosmetic properties of thin wood boards even if the wood grain is unclear, and since the thin wood boards are less than 0.3 tm thick, they are easy to bend. Moreover, since it is reinforced from the back side by the fibrous sheet, it can be easily bent without causing cracks. It is possible to wind up the resin, allowing for smooth hanging and introduction into the resin liquid tank and work in narrow spaces.

Furthermore, since the long sheet-like base material is continuously passed through the resin liquid bath, the resin impregnation process can be carried out efficiently, and since the sheet-like base material is thin, the sebum liquid can penetrate quickly. In this way, impregnated and thin wood boards can be obtained in a continuous sheet, so after pasting a large size plywood on the sheet, the length of each thin wood board on the surface of the sheet can be adjusted. By cutting the decorative board into pieces, it is possible to produce a large number of decorative boards.

In addition, in the present invention, wood with low cosmetic value can be effectively used as the thin wood board to be attached to the fibrous sheet, and the thin wood boards can be attached to the LAN sheet while their end surfaces are joined together. After the resin-impregnated sheet material is coated, a printed pattern such as wood grain is continuously provided, so the appearance is similar to that of a large wood board.In addition, the thin board obtained by cutting the resin-impregnated sheet material is flexible. Because it has a varnished surface, it can be applied to a bent surface to create a decorative appearance.Furthermore, thin wood boards can be colored or dyed in any color beforehand, or thin wood boards of small size can be pasted in a parquet pattern. By forming a long sheet-like base material in advance, a decorative material with even higher cosmetic properties can be obtained.

Furthermore, according to the method of the present invention, printed patterns such as wood grain patterns on the surface of the thin wood board can be maintained by curing the resin liquid impregnated into the thin wood board, and the beautiful appearance can be maintained for a long period of time. It has the following.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIGS.
The figure is a diagram of the manufacturing process, Figure 3 is a simplified plan view of the main part, and Figure 1I is a simplified side view of the cutting process section. ·glue,(
4)... Thin wood board, (5)... Long sheet-like base material,
(7)...Wood grain printing pattern-(9)...Resin liquid tank.

Claims (1)

[Claims] ■ A long fibrous sheet such as a non-woven cloth is rolled out, and a plurality of thin wood boards having appropriate dimensions and a thickness of 005 w or less are sequentially joined to each other at their end surfaces. After forming a long sheet-like base material that can be rolled up by continuously pasting the sheet-like base material, a printed pattern such as wood grain is applied to the surface of the thin wood board of the sheet-like base material, and then, the sheet-like base material A method for producing a resin-impregnated thin wood board, characterized in that the resin-impregnated thin wood board is impregnated with a resin liquid by passing it through a resin liquid bath. ■ Process 0 for producing a resin-impregnated thin wood board according to claim 1, characterized in that the thin wood board has been subjected to bleaching or coloring treatment.