JPS6225004A - Method of sticking veneer and backing sheet - 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 attaching a veneer and a backing sheet, which allows the veneer and the backing sheet to be attached continuously when producing artificial decorative veneers. It is about how to wear it.

[Background technology] When manufacturing artificial decorative veneers, in order to make the wood grain pattern of the artificial decorative veneer resemble natural wood grain, a composite veneer is created by laminating the veneer and a backing sheet such as non-woven fabric. In other words, as shown in FIG. 2, a large number of composite veneers 6 loaded with a rotary or sliced veneer 2 and a backing sheet are placed in a mold 7 having convex and concave surfaces with adhesive. A seven-rich flitch 8 was produced by laminating and pressing, and then this flitch 8 was sliced in a direction intersecting the stacking direction of the composite veneer 6 to expose the cut surface of the composite veneer 6 on the surface to create a wood grain pattern. An artificial decorative veneer 9 is obtained. By the way, when producing a composite veneer 6 like the conventional one, a plurality of veneers are stacked manually on the surface of a backing sheet whose surface is coated with adhesive, and a slight gap is left between the veneers. To prevent the adhesive from seeping out, a release sheet such as Teflon or polyester is placed on the surface of the veneer and the back of the V-backing sheet, and the backing sheet and veneer are separated by passing it between rolls in this state. was attached. Layering this release sheet on the front and back surfaces of the stacking sheet prevents the adhesive from seeping out during pressing and adhering to the roll, and also prevents the adhesive from adhering to the resulting composite veneer and adversely affecting the product. This is to prevent However, in the conventional method, the mold of the release sheet or the mold of the adhesive attached to the sheet may stick to the composite veneer, and the release sheet unwinding and winding devices are placed in front and behind the mold. In some cases, the process was complicated.

[Objective of the Invention 1] The present invention has been made in view of the above-mentioned points, and it is unnecessary to use a release sheet when bonding a veneer and a backing sheet, and a mold such as an adhesive can be used as a composite material. It is an object of the present invention to provide a method for pasting a veneer and a backing sheet that does not stick to the board and can simplify the purchase of a pasting device.

[Disclosure 1 of the Invention That is, the method for attaching a veneer and a backing sheet of the present invention is as follows:
A plurality of veneers 2.2.2 are placed on the surface of a long backing sheet 1 that is continuously conveyed in the longitudinal direction.
The stacked sheet 4 is placed between the rolls 5, and then the release agent 12 is applied to the surface of the adhesive 3 between the 01 plates 2. The above object is achieved by applying a liquid mold release agent 12 to the areas where the adhesive 3 is applied and the areas where the adhesive 3 oozes out.

The present invention will be explained in detail below. As shown in FIG. 1, a long backing sheet 1 such as a non-woven fabric is continuously conveyed in the longitudinal direction while being unwound, and an adhesive 3 is applied to the top surface of the backing sheet 1 using a coating machine 11 such as a roll coater. A veneer 2 is coated and then cut onto the top surface of this backing sheet 1.
Load.

Each veneer 2 is stacked on the backing sheet 1 so that there is a gap between the veneers 2 and 2 at the front and rear in the conveyance direction. next,
A liquid mold release agent 12 such as Teflon is sprayed over the entire surface of the back surface of the backing sheet 1 and the surface of the veneer 2.

In addition, when painting the surface of the veneer 2 later, if the adhesive 3 does not seep out on the surface of the veneer 2, the surface of the adhesive 3 in the gap between the veneers 2 and The mold release agent 12 is sprayed only on the surface of the backing sheet 1 on both sides of the plate 2. In addition, if the adhesive 3 does not ooze out to the back side of the backing sheet 1, the adhesive 3 does not ooze out to the back side of the backing sheet 1.
There is no need to spray it. Next, the stacked sheets 4 stacked in this way are fed between rolls 5 such as heated hot rolls to hot press the backing sheet 1 and the veneer 2, and then the space between the front and rear veneers 2. A composite veneer 6 is obtained by cutting the backing sheet 1.

Then, a release agent 12 is applied to the exposed part of the stacking sheet 4 on which the veneers 3 are stacked with the adhesive 3 interposed on the upper surface of the backing sheet 1 and the part where the adhesive 3 oozes out. Then, by supplying this loaded sheet 4 between the rolls 5 and pressing it, the backing sheet 1 and the veneer 2 can be stuck together without the adhesive 3 adhering to the rolls 5. In addition, there is no need to laminate release sheets on the front and back surfaces of the stacking sheet 4 as in the conventional method, and therefore molds caused by the release sheet or adhesive molds are not attached to the composite veneer 6. There is no need to wind up a release sheet, and the device can be simplified.

The present invention will be specifically described below based on examples.

Large 111 Approximately 80 g/m2 of water-based vinyl urethane is applied with a roll onto the top surface of the continuously transported nonwoven fabric, and a wood veneer with a thickness of 0.5 mm is placed on top of it. Next, silicone oil is applied to the back surface of the nonwoven fabric, between the veneers, and on both sides of the veneers in an amount of 88/m2. after that,
This stacked sheet was passed between hot rolls heated to 110° C. and pressed to obtain a composite veneer.

[Effects of the Invention] As described above, the present invention places a plurality of veneers on the surface of a backing sheet with an adhesive so that there are gaps between the veneers in the transport direction, and then A release agent was applied to the surface of the adhesive, and then this stacking sheet was fed between rolls and pressed. Therefore, the veneer and backing sheet could be attached without using a stacking sheet, and the mold release process It has the advantage that it is not adversely affected by the mold of the adhesive adhered to the sheet, and that it is not necessary to wind up the release sheet, which simplifies the apparatus.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a pasting method according to an embodiment of the present invention, and FIG. 2 (aHb) and (c) are explanatory diagrams showing a manufacturing method of an artificial decorative veneer. 1 is a backing sheet, 2 is a veneer, 3 is an adhesive, 4 is a stacking sheet, 5 is a roll, and 12 is a release agent. Agent Patent Attorney Ishi 1) Ai 7 II 1 Figure II 2 Figure (G)

Claims (1)

[Claims] (1) Multiple veneers are placed on the surface of a long backing sheet that is continuously conveyed in the longitudinal direction with an adhesive so that there are gaps between the veneers in the conveyance direction, and then A method for attaching a veneer and a backing sheet, characterized by applying a release agent to the surface of the adhesive, and then supplying the stacked sheet between rolls and pressing.