JP2002002085A - Three-layer printed transparent board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disclose a number of informations by performing a printing which can be seen from both sides even though it is a printing from one side. SOLUTION: A reverse printing face 20 for seeing through a transparent board 10 is provided on one face of the transparent board 10 and a printing face 30 for insulation is provided on this reverse printing face 20 and in addition, a direct printing face 40 for directly seeing is provided on this printing face 30 for insulation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-layer printed board, and more particularly, to a three-layer printed transparent board which can be viewed from both sides even though only one side of the transparent board is printed. .

[0002]

2. Description of the Related Art Conventionally, various printings have been performed on a flat board. Printing on such boards is usually
It was done on each side of the board so that it could be seen from both sides of the board. However, among such boards, especially when one side has unevenness and it can not be printed,
Alternatively, there has been a case where an electronic circuit is mounted on one surface, such as a memory board, and that portion cannot be printed.

Conventionally, in such a case, printing can be performed only on one side, and the amount of information that can be disclosed is limited.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a three-layer printed transparent board capable of disclosing a large amount of information by performing printing that can be viewed from both sides while printing from one side. With the goal.

[0005]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, an inverted printing surface for passing through the transparent board is provided on one surface of the transparent board. A shielding printing surface is provided on the printing surface, and a direct printing surface for direct viewing is provided on the shielding printing surface.

Here, the transparent board only needs to be transparent enough to allow the print to be viewed from the other side, and does not need to be completely transparent. As raw materials, polycarbonate resin, polyester resin, A
BS resin or the like can be used. The reverse printing surface is a printing surface for viewing from the back side of the printing surface, and in particular, characters and the like are reversed.

The shielding printing surface is for printing between the reverse printing surface and the direct printing surface so that only one printing surface can be seen from either surface. More specifically, the printing is performed in white, black, or other chromatic colors. The printing may be performed on the entire surface of the transparent board, or may be performed on only a part of the transparent board. What is a direct printing surface?
This is a print surface for viewing from the front side of the print surface, and there is no inversion of characters and the like.

[0008] Here, both the reverse printing surface and the direct printing surface can be applied to the entire surface of the transparent board, or can be applied to only a part of the transparent board. According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, when performing color superposition printing, the reverse printing surface is formed by first performing black printing, and the direct printing surface is formed. Finally, black printing is performed.

Here, the color superimposition printing includes, for example, decomposing printing. The invention according to claim 3 is the same as the claim 1.
Or, in addition to the configuration of the invention described in 2, the memory board on which an electronic circuit is partially mounted is used as a transparent board, and the surface on which the printing is performed is a surface opposite to the surface on which the electronic circuit is mounted. I do.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a case where the present invention is applied to printing for a memory board.
FIG. 2 is a front view viewed from a printing surface for explaining a printing order. The transparent board 10 is approximately 37m in size
It is mx 45 mm and less than 1 mm thick, and is made of polycarbonate resin. A mounting recess 11 for mounting an electronic circuit is formed on one side.

The transparent board, equipment and inks are as follows. Transparent board: “PS PLAT” manufactured by Fuji Film Co., Ltd.
E VLST "Printing machine used:" Ector 700CL offset printing machine "manufactured by Koyo Co., Ltd. Drying furnace used: UV curing device" Panacure NUX7323 "manufactured by Matsushita Electric Works, Ltd. Ink used: UV (ultraviolet light) manufactured by Dainippon Ink Co., Ltd.
Curable ink (epoxy, acrylate) "Dicure process ink RT-V series yellow, red,
Indigo, Ink, White 5 Colors ”“ New Daicure GP OP Varnish RC 1 Color ”First, the surface with the mounting recess 11 is the lower surface,
The transparent board 10 is set on a predetermined receiving jig.

Next, the reverse printing surface 20 is printed. Here, printing on the reverse printing surface 20 is printing in the order of black, indigo, red, and yellow. Specifically, each color such as black net printing, UV drying 2-3 seconds, blue net printing, UV drying 2-3 seconds red net printing, UV drying 2-3 seconds yellow net printing, UV drying 2-3 seconds Is dried immediately after printing, and the next color is printed.

Thereafter, printing of the shielding printing surface 30 is performed.
Specifically, white solid printing is performed twice and UV drying is performed for 2 to 3 seconds. Thereafter, the printing on the printing surface 40 is performed directly. Here, printing on the direct printing surface 40 is printing in the order of indigo, red, yellow, and black.

Specifically, indigo printing, UV drying for 2-3 seconds Red printing, UV drying for 2-3 seconds Yellow printing, UV drying for 2-3 seconds Black printing, UV drying for 2-3 seconds Then, immediately after printing each color, UV drying is performed to print the next color.

In this case, the order of black ink printing for printing black is reversed on the reverse printing surface 20 and the direct printing surface 40. When the black ink print is positioned at the forefront side of the viewer in this way, a sharp finish is obtained due to the shielding properties of the black ink. Also, here, the four-color separation printing has been described as an example, but solid printing, which is usually performed,
Nose printing can also be performed.

Although it is possible to ship the product after printing as described above, in this embodiment, in order to prevent dirt and scratches, a transparent varnish is directly applied on the further upper surface of the printing surface 40. The used protective printing surface 50 is provided. Specifically, OP varnish RC printing and UV drying for 2-3 seconds are performed.

The total print thickness is about 10 microns. When printing is performed in this manner, the reverse printing surface 20 can be seen from the surface with the mounting recess 11 and the printing surface 40 can be directly seen from the surface without the mounting recess 11 with the shielding printing surface 30 as a boundary. Become.

Therefore, regardless of the presence of the mounting recess 11, the print information can be viewed from both sides. In the above description, the printing is described as the offset printing. However, the printing may be performed by screen printing, gravure transfer printing, pad printing, or the like.

Although the ink is described as using UV curable ink, it is also possible to use thermosetting ink, evaporative ink and the like. In addition, various types of printing may be performed on the entire surface of the transparent board 10 or on a part thereof.

[0020]

As described above, according to the present invention, printing that can be viewed from both sides is performed while printing from one side, so that a lot of information can be disclosed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a case where the present invention is applied to printing for a memory board.

FIG. 2 is a front view seen from a printing surface for explaining a printing order.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Transparent board 11 Mounting recess 20 Reverse printing surface 30 Printing surface for shielding 40 Direct printing surface 50 Protective printing surface

Claims (3)

[Claims] 1. A reverse printing surface for viewing the transparent board on one side of the transparent board, a shielding printing surface on the reverse printing surface, and a direct printing for direct viewing on the shielding printing surface. A three-layer printed transparent board characterized by having a surface. 2. When performing color superposition printing, the reverse printing surface is formed by first performing black printing, and the direct printing surface is formed by:
The three-layer printed transparent board according to claim 1, wherein the transparent board is formed by finally performing black printing. 3. The printing method according to claim 1, wherein a memory board on which an electronic circuit is partially mounted is used as the transparent board, and a surface on which printing is performed is a surface opposite to a surface on which the electronic circuit is mounted. 3 layer printing transparent board.