JP2008302500A - Variable color pattern print product and method of forming pattern - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a pattern whose color is changed to be expressed even on a hard base material, with respect to a pattern print product and a method of forming a pattern, wherein all or a part of the pattern is sectioned into a plurality of areas on a base material, the pattern line of the adjacent sectioned areas is formed with ruggedness different in direction, the uneven surfaces is subjected to coloring comprising lines or dots in parallel with the pattern line and the color is changed according to a change in viewing angle. <P>SOLUTION: The pattern print product comprises the base material 1 having a metallic thin film layer 2 expressing a rugged pattern line formed on a surface thereof and a transparent film 4 expressing a color pattern comprising the lines or dots parallel to the rugged pattern line, wherein the rugged pattern line and the color pattern are superimposed and laminated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention divides all or part of a design into a plurality of regions on a substrate and forms adjacent striped pattern stripes with irregularities having different directions, and lines or parallel to the pattern stripes on the irregular surface It relates to a printed pattern and a pattern formation method that changes the color according to the change in the viewing angle. It is used for household appliances, OA equipment, game machines, cosmetics containers, and other decorative materials. This is used when printing with enhanced properties.

As this type of variable color printed matter, those disclosed in Patent Documents 1 and 2 are known.
In Reference 1, all or part of the design is divided into a plurality of regions from the outside of the light reflecting layer, and irregularities are formed by changing the direction of the pattern in each divided region, and parallel to the pattern on the outside. There has been proposed a printed matter in which colors are given by matching the pitch.
This printed matter has the property that the amount of light reflected by the ridges and the color changes at the same time as the viewing angle changes.

However, clear irregularities are formed in this printed matter because the base is a soft material such as paper, and a change in color on a hard substrate such as hard plastic cannot be expected.
In addition, since it is necessary to print directly on the surface of the formed ridges and stripes, there is a disadvantage that it is impossible to form a pattern with a color change on a substrate that is not suitable for printing.

In Patent Document 2, a metal foil portion and an embossed foil portion having a flat surface are formed by pressing a foil on the back surface of a transparent acrylic resin plate using the same metal foil, and a transparent film subjected to silk printing thereon is formed. A decorative panel bonded with a transparent adhesive is disclosed.

In this panel, there is an advantage that the printed pattern is expressed by contrast between gloss due to reflection on the plane and diffusion of light due to reflection on the uneven surface, but the color of the printed pattern itself cannot be changed. there were.
Japanese Patent Publication No. 7-80343 Utility Model Registration No. 3125616

The present invention divides all or part of a design into a plurality of regions on a substrate and forms adjacent striped pattern stripes with irregularities having different directions, and lines or parallel to the pattern stripes on the irregular surface In the pattern printed matter and the pattern forming method that changes the color according to the change of the viewing angle with the color consisting of dots, it is an object to be able to represent the pattern whose color changes even on a hard substrate Is.

The first technical means for solving this technical problem relates to the printed pattern, (a) a base material provided with a metal thin film layer expressing the uneven pattern on the surface, and (b) parallel to the uneven pattern. And (c) an uneven pattern and a colored pattern are polymerized and laminated together.
The second technical means relates to a pattern forming method. (D) A metal thin film layer formed on a transfer film is pressed onto a substrate using a relief plate for embossed foil on which an uneven pattern is expressed, E) Printing a colored pattern consisting of lines or dots in parallel with the concavo-convex pattern on the transparent film, and (f) polymerizing the concavo-convex pattern and the chromatic pattern to bond the substrate and the transparent film together. .

In the first technical means, a metal thin film layer expressing a concavo-convex pattern is provided on the substrate, and light incident on this pattern is reflected by the concavo-convex surface of the pattern, so that the pattern is viewed. The reflection part changes according to the angle.
Since the transparent film on which the coloring pattern is represented is laminated on the surface of the base material so that the uneven pattern stripe and the coloring pattern overlap, the incident light on the uneven surface is colored or colored according to the coloring pattern. Incident light is incident in an uncolored state. The incident light is reflected by the concavo-convex surface, and is again visible through the transparent film on which the colored pattern is represented.

Since the chromatic pattern on the transparent film is formed by lines or points parallel to the concavo-convex pattern, a repetitive color change occurs corresponding to the viewing angle.
Colors are selectively weakened or appear at different viewing angles, and coupled with the difference in the direction of the pattern stripes in adjacent segmented areas, the colored or uncolored light at the time of incident becomes reflected light as it is or reflected Sometimes light is colored or a color that is fused or compounded with other colors, resulting in a different color change from region to region.
Therefore, even on a hard substrate, it is possible to represent a pattern whose color changes corresponding to the viewing angle.

It is desirable that the uneven pattern on the substrate is provided at least 65, preferably 100 to 400, per inch. When the number is less than 65, individual irregularities are recognized from the color of the pattern, and when it exceeds 400, a pleasant color change is difficult to appear.
When the metal thin film layer formed on the transfer film is pressed onto a substrate using a relief plate for embossed foil on which the concavo-convex pattern is expressed, a concavo-convex pattern having a suitable form can be formed.

When the transparent film is bonded to the substrate, an adhesive or a pressure-sensitive adhesive is used. When the area of the pattern or colored pattern is small, only the periphery of the pattern or colored pattern may be pasted.
Further, when an adhesive or a pressure-sensitive adhesive is interposed between the pattern and the colored pattern, it is necessary to use a transparent one.

The emboss pattern of the design adopted first is selected, the color change in each region is designed, and the embossed foil pressing relief plate and the offset printing printing plate are created based on it.
The former letterpress forms, for example, an embossed pattern in which irregularities are continuous with a pitch difference of 15 to 17 μ at a pitch of 150 per inch. For a portion where the change in metallic luster or color change due to embossing is not required, a flat portion similar to a normal foil stamping plate is formed.

The printing plate for offset printing is designed so that the colors of each region are distributed according to the pattern of the stripes so as to synchronize with the uneven stripes formed on the relief plate.
In this embodiment, 250 color patterns are used per inch, and parallel linear colors 5 and 5 are applied on the transparent polyester film 4.
It should be noted that a halftone dot may be applied to a region where a color change is not intentionally obtained as in normal printing.

1 and 2 show an embodiment in which a vapor deposition transfer foil 2 is transferred to a transparent acrylic resin plate 1 having a thickness of 5 mm as a substrate using the above relief printing plate.
The film 4 is laminated on the surface using a transparent adhesive 3, and a transparent polyester film 6 having a thickness of 25 μm is laminated thereon as a top coat layer.

In the present embodiment, the design is represented on the acrylic resin plate, but the design can also be represented by transferring the transfer foil onto the sheet made of polyester or other resin using the relief printing plate.
What is necessary is just to select suitably according to a use other than the product made from a polyester resin as a transparent film which comprises a topcoat layer.
Of course, an adhesive may be used instead of the adhesive.

Sectional drawing of the design printed matter which concerns on this invention Enlarged perspective view with the topcoat layer omitted

Explanation of symbols

1 base material (transparent acrylic resin plate), 2 foil-depressed metal deposition layer,
3 Adhesives, 4 Transparent polyester film representing colored pattern, 5 Patterns, 6 Top coat layer (Transparent polyester film)

Claims (2)

On the base material, all or part of the design is divided into a plurality of areas, and the pattern stripes of the adjacent divided areas are formed by irregularities having different directions, and coloring is made up of lines or points parallel to the pattern stripes on the irregular surface. In the printed design that changes the color according to the change in the viewing angle, a colored pattern consisting of a base material provided with a metal thin film layer expressing the concavo-convex pattern on the surface, and a line or point parallel to the concavo-convex pattern A printed pattern consisting of a transparent film representing the surface of the film, which is obtained by polymerizing an uneven pattern and a colored pattern and laminating them. On the base material, all or part of the design is divided into a plurality of areas, and the pattern stripes of the adjacent divided areas are formed by irregularities having different directions, and coloring is made up of lines or points parallel to the pattern stripes on the irregular surface. In the pattern formation method that changes the color according to the change in viewing angle, the metal thin film layer formed on the transfer film is pressed onto the substrate using a relief plate for embossed foil on which the uneven pattern is expressed. A method of forming a pattern in which a colored pattern composed of lines or dots is printed on a transparent film in parallel with the concavo-convex pattern stripe, and the concavo-convex pattern stripe and the colored pattern are polymerized to bond the substrate and the transparent film.

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