JPS5950512B2 - Plastic laminated metal plate with stainless steel appearance - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plastic laminated metal plate having a stainless steel appearance, and more specifically, a metal plate having a specific surface gloss and roughness is applied to the surface of an iron plate, etc., and an embossed pattern is further applied. This is a plastic laminated metal plate in which a plastic film having a specific light transmittance is adhesively laminated on the plated surface using a transparent adhesive.

The above-mentioned plastic laminated metal plate has an appearance similar to that of stainless steel, and since the surface is covered with a plastic film, it has excellent corrosion resistance. Moreover, it is inexpensive, so it can be widely used as a building material and an industrial material. .

Hereinafter, the configuration of the present invention will be explained in detail.

In the present invention, the plating surface applied to the surface of the iron plate etc. is 2
It is necessary to have a surface gloss of 00% or more and a surface roughness of less than Rmax 3μ, and if the surface gloss is less than 200%, the color tone will become dull, so the appearance (texture) of stainless steel will deteriorate. If the surface roughness is exceeded and Rmax is 3μ or more, diffused reflection by light rays becomes large, the color tone becomes chalky, and the appearance of stainless steel cannot be obtained.

The above glossiness was measured at 600 angle using a FLS441A gloss meter manufactured by Tomito Seisakusho, and the surface roughness was measured using a SE-4 surface roughness meter manufactured by Kosaka Institute. As mentioned above, the metal plate used as the base material to exhibit the appearance of stainless steel may be any metal plate having surface gloss and roughness within the above ranges, but among these,
Tin-plated metal sheets such as tinplate and chrome-plated metal sheets such as tin-free steel are effectively used. Furthermore, the plated surface of the metal plate has a thickness of approximately 100 to 250 μm.
A plastic film with a light transmittance of 70% or more, which has a suitable embossed pattern of about 50 to 200μ, is laminated with adhesive, and the grain depth is 70% or less than the above light transmittance. If it is less than %, the color tone of the base metal plate,
This is undesirable because it reduces the texture and enhances the image of the coating film.

Further, the above-mentioned plastic film has a light transmittance of 70% or more after being provided with an appropriate embossed pattern as described above, and is made of, for example, polyvinyl chloride resin, acrylic resin, polycarbonate resin, or polyamide resin. Any one selected from ', etc.' is preferably used. Furthermore, in the present invention, the color tone and appearance of the base metal plate are made to exhibit the appearance of stainless steel through the transparent film, so that the present invention can be used as a surface treatment agent for the metal plate and for adhesion between the metal plate and the transparent film. The adhesive needs to be colorless and transparent or colored and transparent enough to maintain the appearance of stainless steel.

As mentioned above, the product of the present invention has a metal plated surface with a surface gloss of 200% or more and a surface roughness of less than Rmax 3μ.A transparent adhesive is applied to a metal plate, preferably a tin or chrome plated plate, and the thickness is A transparent plastic film with a light transmittance of 70% or more, which has an appropriate embossed pattern of approximately 100 to 250μ and a grain depth of about 50 to 200μ, is rolled or the like at a temperature that does not disturb the embossed pattern. (below the softening temperature), it may be produced by pressure lamination under pressure conditions, or after laminating a plastic film to the above metal plate via an adhesive, the film may be produced by laminating the plastic film on the above metal plate with an adhesive, and then laminating the plastic film with the plastic film above the softening point and below the melting temperature of the film. It may also be produced by applying an embossed pattern while applying pressure with an embossing roll at a temperature of .

In the present invention, the plated surface of a metal plate having the above-mentioned limited surface gloss and surface roughness exhibits a color tone and texture that is the same or similar to that of stainless steel due to a transparent plastic film having an embossed pattern laminated thereon. Moreover, since the metal plate and the plastic film are firmly bonded with a transparent adhesive, there is no appearance of rust, making it not only practically effective but also an alternative to rustless steel. It is possible to provide inexpensive materials.

The present invention will be further explained below with reference to Examples, but it goes without saying that the present invention is not limited thereto.

Example 1 Surface gloss 290%, surface roughness Rmaxl. A transparent polyester adhesive is applied to a 8μ stain-free steel plate that has been treated with chromic acid (chromium adhesion amount: 0.19mg/m) to a thickness of 2μ after drying, and the light transmittance is 77.6% and embossed (roughness 60μ)
A soft polyvinyl chloride resin film having a thickness of 150 μm which had been subjected to the above process was laminated with a rubber roll while being cooled to a temperature below the softening temperature of the film.

The obtained plastic laminated metal plate had a texture and appearance similar to that of stainless steel. Example 2 Surface gloss 715%, surface roughness Rmax 2. #25 of lμ
3.5 μm of transparent vinyl chloride adhesive after drying on the tin plate
A soft polyvinyl chloride resin film with a thickness of 180μ and a light transmittance of 84.1% is laminated on top of the film, and the surface temperature of the film is adjusted to 190°C.
The embossed pattern was applied using an embossing roll with a roughness of 90μ, and thus the plastic laminated metal plate had a feel and appearance similar to stainless steel.

Claims (1)

[Claims] 1 Surface gloss of 200% or more and surface roughness Rmax3
A plastic laminated metal with a rustless steel appearance, made by laminating a plastic film with an embossed pattern and a light transmittance of 70% or more on the surface of a metal plate plated with metal of less than μ using a transparent adhesive. Board.