JP2560638Y2 - Hologram glitter body - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic body, particularly a plastic body such as a transparent plastic sheet for decoration.

[0002]

2. Description of the Related Art For example, a transparent plastic sheet for decoration has conventionally been made by mixing a metal powder into a thin and flat sheet-like substrate made of transparent plastic. As the metal powder, for example, a material obtained by vapor-depositing a metal film on a plastic base material and cutting it into fine chips has been used. Such a conventional transparent plastic sheet has a decorative effect in which an extraneous light beam is reflected by the metal powder in the sheet, and the whole looks brilliant.

[0003]

However, in such a conventional transparent plastic sheet, the metal powder merely reflects the incident light. That is, the reflection effect depends on the incident light, and if the ambient light is white light, no further optical effect can be obtained.

An object of the present invention is to eliminate the drawbacks of the prior art and to provide a plastic body having higher decorativeness and an optical effect.

[0005]

SUMMARY OF THE INVENTION A hologram glitter body according to the present invention includes an optically transparent synthetic resin material and a large number of fine glitter chips dispersed and mixed in the synthetic resin material. And a synthetic resin material that is flat as a whole with a large number of grooves embossed on at least one main surface, and a thin metal film deposited on the main surface.

According to the present invention, the synthetic resin material is, for example, an optically transparent, flexible, thin, flat synthetic resin sheet material.

According to the present invention, the synthetic resin material is, for example, an optically transparent, relatively thick, hard, flat synthetic resin material.

According to the present invention, the synthetic resin material may be, for example, an optically transparent and hard columnar body.

According to the present invention, the synthetic resin material may be, for example, an optically transparent and hard spherical body.

[0010]

According to the present invention, a hologram effect due to interference of incident light can be obtained by a large number of fine embossed glitter chips. In particular, under white light such as sunlight or incandescent light, fine glitter chips dispersed and mixed in a synthetic resin material emit glows of seven colors.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a hologram glitter according to the present invention; Referring to FIGS. 1 and 2, the hologram glitter body according to the present invention is realized as a plastic sheet 10, which comprises a thin sheet 12 which is generally flat and basically optically transparent, and in which a fine A large number of glitter chips 14 are dispersed and mixed to form a hologram glitter sheet. In this embodiment, the sheet 12 is a flexible, thin, flat material made of a synthetic resin such as vinyl chloride, polycarbonate, acrylic, or polypropylene. Sheet 12
Is basically transparent and colorless, but may be colored if it is optically transparent. In one embodiment, the thickness of sheet 12 is on the order of 0.3 millimeters. The figure
In FIG. 1, the glitter chips 14 are originally evenly distributed in various places on the entire surface of the sheet 12, but only a part of them is illustrated for clarity.
In addition, the dimensions of each of the illustrated members are somewhat exaggerated for convenience of description.

As best seen in FIGS. 3 and 4, the glitter chips 14 have a generally hexagonal shape in the present embodiment, and are formed from a flat material as a whole, for example, by punching. This material basically includes a generally flat base material 20 of a synthetic resin material such as polyester, and has a plurality of minute grooves embossed on one main surface 22 thereof. The groove of this embossing 22 is
For example, it is formed at a density of 1,200 lines per millimeter (mm). A thin film 24 of a metal such as aluminum is formed on the embossed surface 22 by vapor deposition, and covers the entire embossed surface 22. Preferably, a thin protective layer 26 of a synthetic resin material such as polyester may be formed thereon. This protective layer 26 may not be provided.

The hologram effect due to the interference of the incident light on the embossed surface 22 can be obtained by the embossed surface 22 having a high density corresponding to the length of the light wavelength. In other words, the light incident on the embossed surface 22 interferes with each other in wavelength, so that optical interference fringes are observed from the outside. The thin film 24 may not be a sufficiently thick film, but may be thick enough to obtain a half mirror effect by semi-evaporation. In the illustrated example, the embossed surface 22 is formed on only one main surface of the base material 20, but may be formed on both surfaces.

In this embodiment, the glitter chips 14 have a total thickness of about 43 μm and a diagonal length of about 0.4 mm. To form the glitter chips 14 by stamping or cutting from a flat material, a hexagon is efficient and advantageous in this way, but other shapes such as a square or a circle may be used. The diameter of the glitter chips 14 is not limited to the above numerical values, but may be other values, for example, 0.8 or 3.2 mm. However, the shorter the diameter of the glitter chips 14, the more beautiful optical effect can be obtained.

The sheet 12 is formed into a flat sheet by molding a molten plastic material with a nozzle. During the molding, a large number of glitter chips 14 are mixed into the molten material and dispersed in the molten material at a uniform density. In one example, countless glitter chips 14 were dispersed at a rate of 21 to 23 grams per square meter of molten plastic material. After molding, the hologram glitter sheet 10 as shown in FIG. 1 is completed by cooling. When the chips 14 having a large diameter are mixed and molded, the main surface of the chips 14 tends to be substantially parallel to the main surface of the sheet 12, but the mechanical strength of the entire sheet 12 tends to be insufficient. If you mix small diameter chips 14,
The mechanical strength of the entire sheet 12 is also increased, and a more beautiful optical effect is obtained.

The hologram glitter sheet 10 can provide an effective hologram effect especially under sunlight or incandescent light. More specifically, the glitter chips 14 dispersed in the transparent sheet 12 emit a glow in each place in seven colors, and a beautiful optical effect can be obtained for the observer. Such a hologram glitter sheet 10 is processed into leisure goods such as a floating ring or parasol, or various commodities such as bags, and a visually beautiful optical effect can be obtained. The hologram glitter sheet 10 may be processed into a product as it is, or may be adhered to another material 30 as shown in FIG. This material 30 may be, for example, a cloth or a sheet of vinyl chloride. For example, the sheet 30 is more effective when it is black. Further, as shown in FIG. 6, a transparent plate glass 32 may be interposed. This allows
Increases mechanical strength.

FIG. 7 shows another embodiment of the hologram glitter body according to the present invention. In the above-described embodiment, the synthetic resin sheet 12 is a flexible thin flat material. However, in the embodiment shown in FIG.
Includes, for example, a synthetic resin plate 42 of acrylic, hard vinyl chloride or polypropylene,
Consists of an optically transparent, relatively thick, rigid plate material. Many fine glitter chips 14 are dispersed and mixed therein. The synthetic resin plate 42 itself may be colored, or one or both sides may be coated with another colored and transparent film material. In one example, the thickness of the synthetic resin plate 42 is 1 mm, 2 mm, 3 mm, 5 mm, or the like. In the same figure, the glitter chips 14 are originally evenly distributed in various places on the entire surface of the synthetic resin plate 42. The dimensions are somewhat exaggerated for illustration purposes.

FIG. 8 shows another embodiment of the present invention. In this embodiment, the hologram glitter body 50 includes a cylinder 52 of synthetic resin. The column 52 is made of an optically transparent and hard synthetic resin material such as acrylic, for example, and a large number of fine glitter chips 14 are dispersed and mixed therein. The material can also be, for example, rigid vinyl chloride or polypropylene. of course,
The cylinder 52 may itself be colored, or
The surface may be coated with another colored and transparent film material. The present invention is not limited to the specific shapes of these embodiments, and may be, for example, a prism such as an elliptical cylinder, a square prism, or a hexagonal prism. Further, other shapes such as a sphere, a square, a tetrahedron, and a prism may be used. The hologram glitter body of these embodiments is an indoor partition plate, store decoration, accessories,
It is effectively applied to a wide range of uses such as building materials, stationery, vending machines, and miscellaneous goods.

[0019]

As described above, according to the present invention, a hologram glitter body having an effective hologram effect that emits a seven-color spectroscopic glow under white light such as sunlight or incandescent light can be obtained. Such a hologram glitter body,
This achieves an optical effect that cannot be obtained by a conventional transparent plastic sheet or the like that simply reflects incident light rays, and has high industrial utility.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a hologram glitter body according to the present invention.

FIG. 2 is a cross-sectional view partially showing a cross-section taken along a chain line arrow II shown in FIG.

FIG. 3 is a perspective view showing one example of a glitter chip included in the hologram glitter sheet shown in FIG. 1;

4 is a cross-sectional view partially showing a cross section taken along a dashed line arrow IV shown in FIG.

FIG. 5 is a partial sectional view showing an application example of the hologram glitter sheet shown in FIG.

FIG. 6 is a partial sectional view similar to FIG. 6, showing another application example of the hologram glitter sheet shown in FIG. 1;

FIG. 7 is a perspective view similar to FIG. 1, showing another embodiment of the hologram glitter body according to the present invention.

FIG. 8 is a perspective view showing still another embodiment of the present invention.

[Explanation of symbols]

 10 Hologram glitter sheet 12 Synthetic resin sheet 14 Glitter chips 20 Base material 22 Embossed surface 24 Metal thin film 40 Hologram glitter body 42 Synthetic resin plate 50 Hologram glitter body 52 Cylinder

Claims (5)

(57) [Scope of request for utility model registration] 1. An optically transparent synthetic resin material, and a large number of fine glitter chips dispersed and mixed in the synthetic resin material, wherein the glitter chips have a large number of grooves on at least one main surface. A hologram glitter body comprising: a synthetic resin material which is flat as a whole and is embossed; and a thin metal film deposited on the main surface. 2. The hologram glitter according to claim 1, wherein the synthetic resin material is an optically transparent, flexible, thin, flat synthetic resin sheet material. body. 3. The hologram glitter body according to claim 1, wherein the synthetic resin material is an optically transparent, relatively thick, hard, flat synthetic resin material. 4. The hologram glitter body according to claim 1, wherein said synthetic resin material is an optically transparent and hard columnar body. 5. The hologram glitter body according to claim 1, wherein the synthetic resin material is an optically transparent and hard spherical body.