JPS59120449A - Decorative flitch for indoor stair - 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 decorative plywood for indoor stairs.

Conventionally, decorative plywood coated with paint has been used for indoor stairs, but it is dangerous because your feet may slip when going up or down the stairs.

Although these anti-slip metal fittings and anti-slip tape are used, they are not aesthetically pleasing and suffer from severe surface wear [2].
The disadvantage was that the paint on the stairs was easy to remove.

The present invention improves these drawbacks, and the tsubo is 1.
0 to 100y777mm sheet fiber base material with a basis weight of 5 (l)
Coating 1 - Fiber base material-containing semi-cured sheet H6, which is made into a semi-cured state by heating and melting thermosetting resin composition powder in an amount of F/g or more, is provided on at least one side of the wood board material, and the surface is uneven. Concerning a decorative plywood for indoor stairs formed by heating and pressure forming and forming a coating layer so that the height difference between J and f is 0.05 to 0.05 (1.3 WJ unit convex area occupied area is 0.3 to 4) It is something.

In the present invention, the sheet-like fiber h (the basis weight of the material is 10 to 10
oy7nt, coating amount of epoxy resin composition powder 50y
The reason why we limited the range to north of Go is that outside this numerical range, the resulting decorative plywood will have poor abrasion resistance, and the viewability of the cured semi-cured sheet containing wood plywood and fiber base material will be poor. It is.

The upper limit of the coating amount is usually 200 y/ba.

As the thermosetting resin composition, an epoxy resin composition is particularly preferably used.

When using a thermosetting resin composition, the reason why it is limited to a powdered one is that if a powdered one is used, there will be no τ blisters, voids, etc. in the coating layer obtained by heat-pressing molding.

Regarding the unexploded Eli 4, the surface σ) degree of unevenness is limited as above σ) [- The reason is that outside the above numerical range, the anti-slip effect is inferior, and socks accumulate 1A when walking, etc. + 7'l dog points. It is.

In addition, in misfire 8Ij, the step is convex > fls r7
3. The distance between the apex and the 4th part L, the occupation of the unit convex part, 1IIL1, refers to the area occupied by the unit convex part.

As a method for forming irregularities on the surface of the decorative plywood obtained, for example, when a semi-cured sheet '6 is provided on one side of the wooden board and heated and pressurized, the semi-cured sheet is There is a method in which a release paper having a recess of 11h is brought into contact with the surface.

Unevenness? Examples of the release paper include fluorine resin-impregnated glass cloth obtained by impregnating glass cloth with polytetrafluoropylene dispersion and heating and baking the cloth.

Irregularities that match the texture of this impregnated glass cloth are formed.
ing. ! A glass cloth impregnated with silicone resin can also be used as the release paper.

Examples of the sheet-like fiber base material that can be used in the present invention include nonwoven fabrics and woven fabrics. In terms of material, I prefer glass fiber mopi] [-Iga other Japanese paper,
Rayon, vinyl cloth, polyester fiber, etc. can be used.

When using glass cloth, tsubo alt 50~], 0
(1y777/pi) is preferably used.

For unexploded Elf)], the semi-cured sheet containing the imitative fiber base material may be placed on one side of the wooden paulownia board and heated and pressure molded as described above, or it may be further placed on both sides. The same vote (+LJ may be heated and pressure molded 1-).

Since the present invention is configured as described below, the anti-slip coating [
The uneven surface of 1 and the painted surface were molded at the same time, and the present invention will be specifically explained with reference to Examples.

Example Jltt24&/η? 1 tsubo of epoxy resin composition powder (manufactured by Tokyo Denko Co., Ltd., trade name T-300) was applied to the surface of acrylic paper.
Take 13 (coated with an amount of 19/7/?, then σ) 11
( ) to 120° C. for 20 seconds to obtain a semi-cured sheet containing a fiber base material.

Thickness'! , put 2 semi-cured sheets on the surface of plywood (1 mm thick), 1 l-) K polytetrafluoroethylene impregnated with Lascross (manufactured by Nitto Denko Corporation, trade name Nidoflon & 970) k fit, 12 (l t
E, 5kQ/cl.

10016117), heat and pressure molding is performed in a pot press under the following conditions, and after the press pressure is released, the rlfr-impregnated glass cloth is removed to produce decorative plywood for indoor stairs.

This decorative plywood has a coating layer thickness (1.1OfflW, an area occupied by a unit convex portion of 1-1 and a step difference of 0.05 mm, and is JAS
In the standard abrasion test, it was IO (1 O rotation) or more (30 to 50 rotations when using paint).Furthermore, the transparency was excellent, and the wood grain pattern was finished with a sharp finish.

The decorative plywood obtained is shown in FIG.

(1) The semi-cured sheet is cured and adhered, and 11 stations are fixed, (
2) is plywood.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an example of a decorative tone plate for indoor stairs according to the present invention. 1...Cured coating layer of semi-cured sheet containing fiber base 2...Government 4 patent author Nitto' Ichiki Kogyo Co., Ltd. Representative Sanbe Hijikata

Claims (1)

[Claims] On a sheet-like fiber base material with a basis weight of lO~100y/g
09177/ A semi-cured sheet containing a fiber base material is coated with a thermosetting resin composition powder in the above range and heated and melted to form a semi-cured sheet, and the semi-cured sheet containing a fiber base material is disposed on the surface of a wooden board material, and the unevenness of the surface is Heat and pressure molding 1-
Decorative plywood for indoor stairs.