JPH03211004A - Manufacture of decorative timber veneer roll with liner - Google Patents

Abstract

PURPOSE:To prevent crack, warp, torsion and shrinkage and upgrade flexibility by butting finger processed sections of triangle tooth shape of both ends of a decorative timber veneer in a manner of crossing each other, reinforcing its surface with a non- woven cloth tape to make the veneer continuous, applying a bonding agent on the rear surface, overlaying a fiber sheet on the rear surface, pressure bonding to form a continuous spiral roll, grinding the surface and adjusting the thickness. CONSTITUTION:Finger processed sections 4, 4 of triangle tooth shape in width direction are formed on both ends of decorative sliced veneers 1, 1 of given width, butted successively each other in a manner of crossing, and a non-woven cloth tape 5 is applied on the surfaces 2 of finger processed sections by means of a bonding agent for reinforcement. The veneer is made continuous to form a spiral roll, and then the same is unwound while the bonding agent 7 is applied to its rear surface 3, on which a thin fiber sheet 8 such as the non-woven cloth and the like of same width is overlapped, and run through a couple of rolls 11 and 11 and pressure bonded. The surface 2 of veneer is ground by a sander to adjust the thickness uniformly and the reinforced non-woven tape 5 is removed by grinding to form a finished smooth surface 9 and manufacture a spiral decorative timber veneer roll with liner.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing a backed precious wood veneer roll by a novel method.

(Prior Art) The present applicant was the one who started providing large quantities of long veneer rolls of precious wood with a thickness of about 0.3 to 0.5 mm, but now the structure of wood products such as furniture has changed. As a result, it has become quite popular. However, the manufacturing process is an old-fashioned method in which the joined end surfaces of precious wood veneers are butted one after another and passed through rolls, and there is no guarantee that the above-mentioned interlocking butt will be maintained until the joined end surfaces are joined by the pressure applied by the rolls. Because of this, it was not possible to speed up the feeding of the pressurized reservoir, resulting in extremely poor manufacturing efficiency.

(Problem to be solved by the invention and purpose of the invention) The present invention is a precious wood...! The objective is to improve manufacturing efficiency by manufacturing with a new method of backing an extremely thin fibrous sheet such as non-woven fabric with an adhesive, without permanently adhering the butt WJ surfaces of the L plates. This is the object of the present invention.

(Means for solving the problem) In the present invention, precious wood veneer refers to ordinary wood with a thickness of about 0.3 = 1.0 mm, which is treated as precious wood because the grains are finely aligned or there are no knots. Points to the veneer. However, there is no established classification or definition.

The manufacturing method of the backing precious wood veneer roll of the present invention solves the above-mentioned problems, and involves processing a large number of parallel triangular tooth-shaped fingers on both ends of a predetermined [11] precious wood veneer, and meshing the processed parts one after another. A non-woven fabric tape is pasted with adhesive on the surface of each butted part to reinforce it, and a long piece of precious wood veneer is coated with adhesive on the back side, and a backing fiber such as non-woven fabric is applied to the adhesive. The quality wood veneer and the backing fibrous sheet are pressed and bonded by overlapping the quality sheets and the ends are butted together to form a long spiral roll, and the surface is sanded before or after the roll is formed. This method is characterized in that the reinforcing non-woven fabric tape is removed by grinding at the same time as the thickness is adjusted by smooth grinding, and there is no trace of the use of the non-woven fabric tape applied for reinforcement, and it does not crack or warp. The precious wood veneer, which prevents twisting, expansion and contraction, and has flexibility, has the inventiveness of providing a wide range of products.

(Example) Figures 51 to 7 of the accompanying drawings are explanatory diagrams illustrating the compensation process of the present invention.

In Figure 1, 1.1 has a thickness of 0.2-0.6 rom, 1
It is a veneer of precious wood veneer of about 1300mm and 3800-3600mm long, and finger processing 4.4 consisting of many parallel triangular teeth in the middle direction is applied to both ends.

The length of the triangular tooth shape of the finger processing 4 is approximately within 15+ ohm, but it is preferable that the lengths are different. However, the shape must be such that each precious wood veneer veneer 1.1 is perfectly interlocked without moving in the middle direction.

The finger processing 4, 1 are butted one after another in an interlocking manner as shown in Fig. 2, and a nonwoven fabric tape 5 is pasted with adhesive on the surface 2 of each abutted portion as shown by the chain line in Fig. 2 and the solid line in Fig. 3. This is then made into a long length to form a spiral roll 6 as shown in FIG. 4, and then the spiral roll 6 is unwound as shown in FIG. 0.0 of non-woven fabric etc.
5□~0.10+nm thick spiral roll and thin M in between
& Fibrous sheets 8 are stacked, passed between a pair of rolls 11 and 11, subjected to pressure bonding treatment, and the surface 2 is ground with a sander to adjust the thickness to be uniform. At the same time, the reinforcing non-woven fabric tape 5 is attached to the chain line in FIG. 6. As shown in Figure I7, it is removed by the grinding process and finished into a flat surface 9, resulting in a spiral-shaped backed precious wood veneer roll 10 as shown in Figure i7.

The thickness adjustment is to make the precious wood veneer roll 10 about 0.2 to 0.5 mm, and the 1'7 thickness of the grinding is about 0.05 to 0.5 mm.
It is about 15 mm.

The spiral-shaped precious wood veneer roll 10 manufactured as described above is cut into rounds according to the order.

(Operations and Effects) The present invention provides finger processing 4 applied to both ends of the precious wood veneer 1.
Not only are they butted one after another in an interlocking manner, but a reinforcing non-woven fabric tape 5 is applied with adhesive to the surface 2 of each butt part, thereby preventing the precious wood veneer from moving until the butt parts are joined by pressure. Since it includes a reinforcing process, the finger-processed parts are butted together in the manufacturing process, and the abutted parts of the precious wood veneer are reinforced with the reinforcing nonwoven fabric tape 5, and the joined parts are made difficult to see, and the backing of the fibrous sheet 8 is applied. In the process of continuously high-speed bonding with the long fibrous sheet 8 by making it into a spiral roll and maintaining its long shape, continuous application of an adhesive such as vinyl acetate and continuous supply of the fibrous sheet 8 are performed. The fibrous sheets 8 can be bonded together at high speed by being able to overlap each other. In addition, for the long veneer veneer with a fibrous seam) 8 on the back, the surface 2 on which the reinforcing non-woven tape 5 is pasted is ground with a sander, and the thickness adjustment and the removal of the reinforcing non-woven tape 5 are done by this grinding. Because we have a process to finish it with a smooth surface 9, we are able to efficiently manufacture rolls of high-quality precious wood veneer at high speed and at low prices without cracking, warping, twisting, or stretching. be.

[Brief explanation of drawings]

FIGS. 1 to 7 of the accompanying drawings are explanatory diagrams illustrating various steps of the present invention. =8 1 → Precious wood veneer veneer 2 → Front 3 → Back 4 → Finger-shaped processing 5 → Non-woven tape 6 → Vortex roll 7 → Adhesive 8 → Fibrous sheet 9 → Smooth surface 10 → Vortex back Pasted veneer roll 11 → roll

Claims (1)

[Claims] A large number of parallel triangular tooth-shaped fingers are processed on both ends of a precious wood veneer of a specified width, and the processed parts are butted one after another in an interlocking manner to make a long precious wood veneer, and non-woven fabric tape is adhered to the surface of each butted part. At the same time, an adhesive is applied to the back side, and a backing fibrous sheet such as non-woven fabric is layered on the adhesive, and the end surfaces of the precious wood veneer and the backing fibrous sheet are butted together. Pressure bonding is performed to form a long spiral roll, and before or after forming the roll, the surface is ground smooth with a sander to adjust the thickness, and at the same time, the reinforcing nonwoven fabric tape is removed by the grinding. A method for manufacturing a backing precious wood veneer roll characterized by the following.