JPS5828302A - Manufacture of artificial 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 The present invention is characterized in that a large number of material veneers are laminated and pressed together to create a flip pre-preparation.
By slicing this flitch along a cutting plane that passes through multiple pieces of material veneers, the boundaries between the material veneers appear as a wood grain (annual ring) pattern.75KL
This invention relates to a method for manufacturing artificially decorated veneers.

In order to make the grain pattern of this artificial decorative veneer look like a grain, there are 4 steps! As shown in Figure J1, when forming a flitch by stacking and pressing the material veneers (1), two molds are used: a mold with one side convex (2a) and a mold with one side concave (2b).
) to make the flitch curved, and then this flitch is sliced diagonally.When forming this flitch, conventionally, a single plate of material of uniform thickness [
1) was laminated and pressed, as shown in Figure 2, half an excessive pressure was applied to both sides, but it was difficult to apply pressure to the center. Therefore, there is a problem that poor adhesion between the material veneers (1) is likely to occur, and as shown in Fig. 8, the adhesive layer (3) and the transfer sheet ( When using a transfer ink layer (4) transferred from 6), the material veneer (1
) has the problem of causing transfer defects in the transfer process if the thickness remains uniform.

The present invention has been made in view of the above points, and its purpose is to describe the present invention based on an example. Using this material veneer (1), which has been compressed on both sides so that the thickness ``A'' at the center is thicker than the thickness tB at both sides, the mold shown in Figure 1 is made. (2aX
2b) Laminate and press with K using adhesive.

By diagonally slicing the flitch formed in this way, an artificial decorative table board with a grain pattern can be obtained. Since the thickness of the central part, which is thin and difficult to apply pressure to, is increased by one person, pressure is applied evenly to the entire surface of the veneer il+ material, thereby preventing adhesion failure.

As shown in FIG.
It can be easily formed by passing a single plate of material (tl) between the 0-rule (fli) and the diameter of the center part which is smaller than the diameter of both ends [1-L f7+.However, in this case, When the distance between both ends of the 0-ru (7) and the 0-ru (6) approaches zero, there is a greater possibility that the fibers of the material veneer +ti will be destroyed by the material.Therefore, as shown in Figure 6, 0-ru (
A large number of protrusions (8) are formed along the generatrix line on the outer circumferential surface of both ends of 7), and the protrusions 1 become larger toward both ends. As shown in Figure 11!7, the material veneer fl) may be partially thinner at both ends. It is best to apply local buckling to both sides. In this case, when the button is also formed with a flitch as shown in FIG. 8, the pressure becomes uniform because both sides easily buckle.

The method described above is used to obtain a material veneer (1) whose both sides are compression-molded and whose central part is thicker than both sides. - Transfer Iw (4) onto the surface of the material veneer (1) instead of the Ruzuresu
'(17t&) Press molding performed in the transfer process may be used. In other words, an adhesive layer ia+ may be applied to the surface.
and apply a transfer sheet on top of it.
Laminate multiple sheets of electrically charged material veneer (1) and use a press to transfer the ink layer (voice) from the transfer sheet (6) to the material veneer (1).
When transferring, a single-sided concave mold is used for the uppermost and lowermost stage, and a double-concave mold is inserted between the molds for the press. Then, by applying pressure, it is possible to obtain a material ratio vi+11 that is thick at the center φS and thin at both sides, and does not cause poor adhesion of the transfer ink layer (4) to the material veneer (1), that is, poor transfer. Also, in this case, since a transfer process is used, there is no need for an additional process like in the case of the zero press, and the structure of the single M1υ is completely destroyed! It's something that can't be helped.

As described above, in the present invention, a material veneer that has been compressed in advance on both sides so that the central part is thicker and both sides are thinner is used as a material veneer, and these are laminated using a mold with a concave surface and a convex surface. Since the flitch is formed by pressing, the pressure is applied evenly to the surface of the material veneer during lamination pressing, and there is no possibility of adhesion failure. Since the material veneer is compressed on both sides using 0-ruzuless using 07L smaller than the diameter of the part, it is possible to easily obtain a material veneer with different thicknesses at the center and both sides through continuous processing. Furthermore, in the eighth invention, although both sides of the material veneer are compressed using 0-rupusujisu, 0-
Since the material veneer has sK protrusions on both ends to give riJs-like buckling to both sides of the material veneer, there is less risk of destroying the structure of the material veneer during 0-rueless. In addition, since the fourth invention uses a press in the transfer process to transfer the transfer ink layer from the transfer sheet to the surface of the material veneer, the structure of the material veneer is increased, and the structure of the material veneer is increased. It cannot be destroyed.

[Brief explanation of the drawing]

Fig. wJ1 is a perspective view of conventional flitch formation, Fig. 2 (b) is a front view and pressure distribution diagram of the same as above, Fig. 8 is a perspective view of the transfer sheet and material veneer as above, Fig. 4 is a perspective view of the same as above, A perspective view of the raw material veneer used in the present invention, No. 5 Fl) (b) is a front view and side view of the O-le press,
- Front view and side view of the L stress 6, Figure 7 is a perspective view of the material veneer obtained by the same O-le press, Figure 8 is a front view of the same laminated press, and Figure 9 is a transcription. FIG. 3 is a perspective view of the process. (1) is the material veneer, (21X2b) is the mold, (3) is the adhesive layer, (4) is the transfer ink layer, (6
) indicates the transfer sheet, +61 +71 indicates the 0-rule, (8) indicates the protrusion, and the symbol indicates the mold. Agent Patent Attorney Ishi 1) Choshichi

Claims (4)

[Claims] (1) A large number of veneers of material whose thickness on both sides is made smaller than the thickness at the center by compression processing are laminated with adhesive, and then pressed together using a pair of molds with concave and convex surfaces. A method for manufacturing an artificial decorative veneer, which comprises forming a flitch and then slicing the flitch diagonally along a cutting plane passing through a plurality of material veneers. (2) Using an O-ru press, which has a circle whose diameter at the center is smaller than the diameter at both ends, a large number of veneers of material with thicknesses on both sides smaller than the thickness at the center are glued together. An artificial veneer characterized by laminating the sheets and pressing them using a pair of molds having a concave surface and a convex surface to form a flitch, and then slicing the flitch diagonally with a cutting surface of 31i from a plurality of veneers of material. Method of manufacturing decorative veneer. (3) Using an O-le press equipped with a roll equipped with a large number of protrusions in the same direction as the axial direction of both ends, a veneer of material with a thickness t of both sides partially smaller than the thickness of the center part is glued. A feature is that a large number of sheets are laminated through a veneer, and a pair of molds having a concave surface and a convex surface are used to press the flitch to form the entire flitch, and then the flitch is sliced diagonally with a cutting surface that passes through the plurality of veneer materials. A method for manufacturing artificially decorated veneer. (4) A transfer sheet is laminated on the surface of the material veneer via an adhesive layer, and pressed with a mold having a concave surface to transfer the transfer ink Iw from the transfer sheet to the material veneer, and the material veneer is laminated on both sides thereof. The thickness of both sides is made smaller than the thickness of the center by compression processing, and many veneers of this material are stacked and pressed together.
Manufacture of artificial decorative veneer characterized by forming a flitch by pressing with a pair of molds having a concave surface and a convex surface, and then slicing the flitch diagonally with a cutting surface passing through a plurality of material veneers. Method.