JPS6141299B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a decorative material having depth and three-dimensionality. Specifically, the present invention relates to a method for producing a decorative material having depth and three-dimensionality. The purpose is to express depth and three-dimensionality through the composition.

Many attempts have been made to obtain decorative materials with depth and three-dimensionality. The main method is to create a three-dimensional effect by forming unevenness that matches the pattern by mechanical embossing or chemical embossing. However, simply forming irregularities on the surface does not give a sense of depth, and not only does it lack a sense of weight, but the irregularities themselves also give an artificial and unnatural feel, making it difficult to achieve a satisfactory design. I couldn't get it. Therefore, a method has been proposed for producing a deep decorative material with a metallic luster by applying or printing a composition in which metal powder or pearlescent pigment is mixed into paint or ink. However, since this method requires the step of applying or printing the composition, the composition must have applicability or printability, and the mixing ratio of metal powder and pearlescent pigment must be adjusted. It had to be limited to 50% or less, and as a result, it was not possible to sufficiently express gloss and depth.

The present invention was made in view of the above points, and uses a sheet having metallic luster or pearl luster, such as a metal sheet or a resin sheet kneaded with metal powder, mica, etc., and has two patterns. By creating an actual three-dimensional structure with a multi-layered structure and also using differences in gloss, we have created a method for producing decorative materials that have an appearance that closely resembles natural wood, something that could not be achieved with conventional technology. This is what we are trying to provide.

Next, a detailed explanation will be given according to the drawings.

First, as shown in FIG. 1, a glossy sheet is used as a base sheet 1 for the decorative material of the present invention. Examples of sheets include metal foil such as aluminum foil, pearlescent polypropylene synthetic paper, metal powder such as aluminum powder, brass powder, copper powder, mica, crushed seashell powder, polyester sheet and aluminum. A sheet formed by mixing fine particles obtained by pulverizing the vapor-deposited material into a polyvinyl chloride resin composition, and others can be used. These sheets are made of materials that can be mixed with large amounts of metal or metal powder, so they cannot be used with conventional paints or paints that cannot contain more than 50% of metal powder or pearlescent pigments. Compared to ink, it is far superior in its ability to express luster and depth.

Furthermore, as shown in the drawn circle in FIG. 1, if the surface of the sheet is processed to have two hair lines, directionality can be given to the glossy reflected light. This hairline-like processing can be done by mechanical embossing using an embossing plate or embossing roll, or by using a brushing roll, and the direction of the hairline will be the pattern that will be printed later. For example, it is processed so that it is parallel to the direction of the wood grain pattern or conduit pattern.

Next, as shown in FIG. 2, a transparent or colored transparent resin layer 3 is provided on the base sheet, and a transparent or colored transparent resin sheet 5 with a pattern 4 formed thereon using transparent ink is then formed. They are pasted together using an adhesive using a dry lamination method.

Only one resin sheet may be bonded together as shown in FIG. 2, or two or three or more resin sheets may be bonded together as shown in FIG. 3.

The resin layer is a transparent or colored transparent layer so as not to hide the gloss of the underlying base sheet, and can be provided by applying a resin composition and drying it, or by bonding resin sheets together.

Resins that can be used for resin layers and resin sheets include urethane, vinyl chloride, vinylidene chloride, vinyl acetate, vinyl chloride, vinyl acetate, polystyrene, acrylic, ABS resin, polyamide, polyester, and epoxy. There are resins such as polyvinyl alcohol, polyvinyl alcohol, polyvinyl acetal, copolymers of styrene and acrylonitrile, and other resins.

An appropriate transparent ink is selected in consideration of the required physical properties, hue, etc.

Known adhesives can be used and there are no particular limitations, but it is desirable to select a transparent adhesive so as not to hide the luster or pattern of the underlying layer.

Next, as shown in FIG. 4, a transparent or colored transparent resin sheet 7 provided with a pattern 6 using non-transparent ink is pasted together using an adhesive using a dry lamination method.

As the non-transparent ink, the ink composition described above for the transparent ink, in which the colorant is replaced with an opaque pigment, can be used.

The vertical relationship when pasting resin sheets together is as follows:
Various combinations are possible, such as with the patterned side up or down, but in any case, it is necessary to paste the sheets together so that the patterned sides of each sheet do not come into contact with each other in order to express a three-dimensional effect. It is.

Further, when the pattern is exposed on the surface as shown in FIG. 4, a transparent or colored transparent surface protective layer can be provided by applying a resin or laminating a resin sheet thereon.

In each of the above steps, methods for applying resin and paint include natural roll coater, reverse roll coater, flow coater, gravure coater, bar coater, knife coater, spray coater, mesh roll coater, and other conventionally known coating methods. A method can be used.
In addition, roll laminators and flat pressure press laminators can be used to bond resin sheets, etc. Methods for applying various patterns include lithographic printing, gravure printing, letterpress printing, gravure offset printing, and screen printing. It can be applied by a printing method, a flexo printing method, a transfer printing method, or other methods.

The decorative material produced by the method of the present invention as described above has the "finish" characteristic of natural wood reproduced by the gloss of the base material sheet, and has the base pattern, wood grain pattern, and conduit pattern. A transparent resin layer is placed between each pattern to create a multi-layered structure, giving it a rich three-dimensional effect and a sense of flesh.Furthermore, by using opaque ink, a visual three-dimensional effect is created by the difference in gloss. It has an appearance that is extremely similar to natural wood, and its uses include furniture, building materials, and other products where the texture of natural wood is desirable.

<Example> A colored vinyl chloride film kneaded with aluminum powder with a plasticizer content of 15% and a thickness of 80μ and a transparent vinyl chloride film with a thickness of 80μ are laminated by heating and pressure, and a teak pattern is placed on top of the film. Transparent vinyl chloride films with a straight-grain pattern are pasted together using an adhesive using a dry lamination method. Furthermore, on top of that, a transparent vinyl chloride film with the teak pattern straight-grain conduit pattern created using opaque ink using acrylic-modified urethane resin as a binder is laminated with an adhesive using a dry lamination method to create the unique texture of natural wood. A decorative material with an extremely rich three-dimensional effect was obtained.

[Brief explanation of the drawing]

The drawing is a sectional view showing an example of the method of the present invention,
Figure 1 is a perspective view of the base sheet, Figure 2 is a cross-sectional view of a resin sheet with a pattern printed with transparent ink pasted together, and Figure 3 shows the pattern on the resin sheet divided into two. FIG. 4 is a cross-sectional view of two resin sheets separated and pasted together, and FIG. 4 is a cross-sectional view of a resin sheet with a pattern printed with non-transparent ink pasted together. DESCRIPTION OF SYMBOLS 1... Base material sheet, 2... Hairline, 3... Resin layer, 4... Transparent ink pattern, 5... Resin sheet, 6... Non-transparent ink pattern, 7... Resin sheet, 8... Adhesive.

Claims (1)

[Claims] 1. After or without hairline processing on the surface of a glossy sheet, a transparent or surface-transparent resin layer is provided thereon, and then a transparent ink is applied thereon. Transparent or colored transparent resin sheets with a pattern are laminated together by dry lamination using an adhesive, and then a pattern is formed with non-transparent ink on the transparent or colored transparent resin sheet. A method for producing a decorative material, which comprises bonding transparent resin sheets together using an adhesive using a dry lamination method. 2. Claim 1, characterized in that the transparent or colored transparent resin layer is provided by laminating transparent or colored transparent resin sheets.
Method for manufacturing the decorative material described in Section 1. 3. The method for producing a decorative material according to claim 1, wherein the transparent or colored transparent resin layer is provided by applying and drying a transparent or colored transparent resin composition.