JPH03269401A - Production of transparent body with ornamental reflecting surface - Google Patents

Abstract

PURPOSE:To simplify a process and to improve workability as well as to reduce the cost of products by printing the patterns of protective films on the thin films of a metal formed on the surface of a transparent body and then removing the exposed parts of the thin films not covered with the protective films by an etching soln. CONSTITUTION:A specular surface by the thin film M consisting of the metal, for example, silver, is formed on one surface of the transparent body G, such as glass plate. The patterns of the protective films P are formed as the protective films P to protect the thin film M from the etching soln. thereon by silk screen printing using ink formed by dispersing pigments into, for example, an epoxy coloring material. The protective films P are then subjected to a baking treatment and are thereby cured. The exposed parts Ma of the thin film M not covered with the protective films P are removed by the etching soln. to expose the glass surface S; thereafter, the glass plate is washed and dried. The entire part of the surface is covered with a transparent laminated film J. This glass plate G and another sheet of a freshly prepd. transparent glass plate G are adhered via the laminated film J. The transparent body with the ornamental reflecting surface internally having the ornamental surface is then obtd. by the simple process of merely involving the printing of the patterns of the protective films P in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a method for manufacturing a transparent body with a decorative reflective surface in which a mirror surface portion and a non-mirror surface portion coexist.

[Prior art 1] Conventionally, as a method for manufacturing this type of transparent body with a decorative reflective surface, as shown in Japanese Patent Publication No. 59-3421, a photosensitive resin is applied on the thin film of the metal to form a film, A negative film is placed on the coating, and a cured portion is formed by irradiating ultraviolet rays or the like through the negative film, and the uncured portion of the unexposed portion is eluted and removed to expose the thin film surface of the metal. The manufacturing method used was to remove the exposed thin film surface with a corrosive solution to expose the glass surface.

[Problems to be Solved by the Invention] However, this manufacturing method has a drawback that it is time-consuming because the steps are complicated.

The purpose of the present invention is to simplify this process, save time and effort,
Moreover, the aim is to obtain a product that is not inferior to products produced by conventional manufacturing methods.

[Means for Solving the Problems 1] In order to achieve this object, the method for manufacturing a transparent body with a decorative reflective surface according to the present invention is to form a mirror surface with a thin metal film on the surface of the transparent body, and to apply a mirror surface on the thin metal film. , the pattern of the protective film that protects the thin film from the corrosive liquid is printed, and the exposed portion of the thin film that is not covered with the protective film is removed by the corrosive liquid to expose the transparent body. .

1 Effect 1 According to the present invention, by simply printing the pattern of the protective film on the thin film, as in the conventional method, a photosensitive resin is applied to give the film its shape, and a negative film is placed on the film. Then, irradiate the cured part with ultraviolet rays etc. through the negative film,
The process of eluting and removing the uncured portion of the unexposed area to expose the thin film surface of the metal can be omitted, and the cost of the photosensitive resin and cleaning solution for eluting and removing the uncured portion of the photosensitive resin can be omitted. This also eliminates the cost of waste liquid treatment that occurs when the uncured portion is eluted and removed.

[Effects of the Invention] Therefore, according to the present invention, by simply printing the pattern of the protective film, the overall process is simplified and workability is improved;
In addition to reducing the product cost, the printing process allows you to freely and selectively form transparent, opaque, colorless, colored, etc. protective films, for example, by placing protective films of different colors and transparency side by side or overlapping each other. , so it is possible to create decorative surfaces with various effects, such as having different patterns on the front and back sides. It has also become easier to produce large plate products.

[Example] Hereinafter, an example to which the manufacturing method of the present invention is applied will be described based on the drawings.

As shown in Figure 1 (A), a mirror surface is formed by forming a thin metal film (M), for example a thin film of silver (M), on one side of a transparent body (G), for example a transparent glass plate (G). As an example of the protective film (P) that protects the thin film from corrosive liquid, an ink containing an epoxy coloring agent dispersed with a pigment is used to form the protective film (P).
) is formed on the silver thin film by silk screen printing, and baking is performed to harden the protective film (P), and the thin film (M) not covered with the protective film (P) is
The exposed portion (Ma) of the glass surface (S
) are exposed, washed and dried.

Next, the patterned portion of the protective film (P) and the glass surface (S
) is covered with a transparent laminated film (J) of polyvinyl butyral, and the glass plate (G) and another newly prepared transparent glass plate (G) are covered with the laminated film (J). ) can be bonded as shown in FIG. 1(c) to produce a transparent body with a decorative reflective surface that has a decorative surface inside.

[Another Example] In this example, silver was used for the metal thin film (M), but metals other than silver salts may also be used, such as copper.

Moreover, instead of FIG. 1(A), for example, as shown in FIG. 2(A), the thin film (M) may be replaced with a thin film of a different metal such as silver or copper (F
A transparent body with a decorative reflective surface as shown in FIG. 2(b) can be manufactured by forming two layers of IL) and (M2) and following the same steps. In this case, the protective film (P
) is made transparent, it becomes a transparent body with a decorative reflective surface that, for example, shows the pattern of a silver mirror when viewed from one side, and the reversed pattern of a copper mirror when viewed from the other side.

Further, the protective film (P) may be formed into a plurality of protective films having different colors and transparency, for example, a first protective film (Pi) and a second protective film (P2).
2 (C) according to the process of this example.
As shown in FIG. 2), for example, a transparent body with a decorative reflective surface can be used, in which a silver mirror pattern can be seen from one side of the front and back, and a back pattern consisting of a silver mirror and a plurality of colors can be seen from the other side.

In addition to the epoxy resin, the protective film (P) can be made of various synthetic resins that are insoluble in corrosive liquids, such as acrylic resin.

In addition, various other combinations can be considered, for example, a colored mirror pattern can be obtained by combining a silver mirror and a transparent colored layer.

The transparent body (G) and the laminated film (J) can be made transparent, translucent, or colored, and various other choices can be made.

The pattern may be a picture or text.

The printing may be performed by a method other than silk screen printing, such as hand-drawing or printmaking.

In addition to the ferric chloride aqueous solution, the corrosive liquid may be nitric acid, hypo, or a mixed aqueous solution thereof.

The transparent body (G) may be made of a material other than glass, such as acrylic resin. Its shape is not limited to a plate shape, and for example, its surface may be a curved surface or have relief-like unevenness.

Note that although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

Figure 1 (a) - (/\) is a schematic diagram of a cross section of a main part showing the process of an embodiment of the present invention, and Figure 2 (a) - (/\) is a schematic diagram of a cross section of a main part showing another embodiment. It is. (G), , , , , Transparent body, (M), , , Metal thin film, (Ma), , , , Exposed part, (P),
, , , , Protective film, (S) , 01, Glass surface.

Claims (1)

[Claims] 1. A method for manufacturing a transparent body with a decorative reflective surface in which a mirror surface part and a non-mirror surface coexist, which comprises a thin metal film (G) on the surface of the transparent body (G).
M) to form a mirror surface, and on the metal thin film (M), a pattern of a protective film (P) that protects the thin film (M) from a corrosive liquid is formed by printing, and the pattern is covered with the protective film (P). A method for manufacturing a transparent body with a decorative reflective surface, characterized in that the exposed portion (Ma) of the thin film (M) that is not covered is removed by a corrosive solution to expose the transparent body (S). 2. Claim 1, wherein the printing is silk screen printing.
The method for manufacturing the transparent body with a decorative reflective surface as described. 3. The method for manufacturing a transparent body with a decorative reflective surface according to claim 1, wherein the thin film (M) is formed in a plurality of layers made of different metals.