JPS59199080A - Production of lighting panel - Google Patents

Abstract

PURPOSE:To produce easily a lighting panel having a build-up pattern by coating a photopolymn. type paint on the surface of a light transmittable base plate by screen printing, and irradiating UV rays thereto while the screen remains. CONSTITUTION:A photopolymn. type paint is coated on the surface of a base plate 1 having light transmittability by a screen printing method using a screen 2, and UV rays are irradiated thereto by a UV irradiating device 4 while the trace of the mesh of the screen 2 remains on the surface of the coating to polymerize and cure the photopolymn. type paint 3. The panel having the build-up pattern is thus easily formed by the screen printing method.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for manufacturing a daylighting panel having a raised pattern on one surface, which is used for partitioning one window into nine rooms, etc.

[Background technology]

Conventionally, methods for manufacturing this type of daylighting panel having raised pattern areas on three surfaces include a method in which glass synthetic resin, etc. is poured into a mold with recesses corresponding to the raised pattern areas; There are known methods such as hot-pressing a mold with recesses onto the surface of a synthetic resin substrate, and cutting the surface of the substrate to form a raised pattern. However, neither of these methods.

The surface of the board itself is processed to form a raised pattern, and is it? ! The structure was large, and it was difficult to change the pattern of the raised pattern part. [Object of the Invention] The present invention was invented in view of the above-mentioned background art, and further focused on the characteristics of photopolymerizable paint. In other words, the purpose is that the surface of the raised pattern is a fine, smooth, uneven surface that bends the light that passes through it.

Coupled with the gloss of the photopolymerizable paint, it is extremely easy to obtain a lighting panel with a raised pattern that creates a rich texture and decorativeness, and the design of the raised pattern can be easily changed. The purpose of the present invention is to provide a method for manufacturing a daylighting panel.

[Disclosure of the invention]

The following two aspects of the present invention will be explained based on the drawings.

FIG. 1 is an explanatory diagram showing one embodiment of the present invention. In this embodiment, a photopolymerizable paint 3 is applied to the surface of a translucent substrate 1 by a screen printing method using a screen 2, and is applied with an ultraviolet irradiation device 4 while leaving traces of the screen 2 on the applied surface. This method is characterized in that a diagonal pattern portion 5 is formed on the surface of the substrate 1 by irradiating the photopolymerizable paint 3 with ultraviolet rays to polymerize and harden it. The substrate 1 is a transparent synthetic resin plate that is extruded and cut into regular lengths. The screen 2 has a mesh portion 6 in a portion corresponding to the raised pattern portion 5, as shown in FIG. Photopolymerizable paint 3 is Conhair 7
It is applied as a raised pattern portion 5 on the surface of the substrate 1 through the screen 2, and fine irregularities, which are mesoche traces of the mesoche portion 6 of the screen 2, remain on the coated surface. After the photopolymerizable paint 3 is applied, the substrate 1 is moved from the conveyor 7 to the conveyor B, and at this time, leveling progresses on the surface where the photopolymerizable paint 3 is applied, and together with the peripheral edge of the raised pattern portion 5,
The fine unevenness of the mesh marks on the coated surface gradually becomes smoother.

After the fine unevenness, which is the mesoche marks, on the coated surface has been appropriately smoothed, ultraviolet rays are irradiated by the ultraviolet irradiation device 4 to polymerize and harden the photopolymerizable paint 3. The photopolymerizable paint 3 used in this example was
This is an acrylic urethane modified resin photopolymerizable paint, and the time required for the leveling period β from application to ultraviolet irradiation was within 60 seconds. Therefore, in this embodiment, the surface of the substrate 1 itself is not modified in any way.
By the screen printing method, the raised pattern portion 5 can be formed extremely easily, and the pattern of the raised pattern portion 5 can be changed by simply replacing the screen 2, and the lighting panel 9 obtained in this example is ,
As shown in FIGS. 3 and 4, the surface of the raised pattern portion 5 is a fine and smooth uneven surface, which bends the transmitted light, and together with the gloss of the photopolymerizable paint 3, the surface is rich. It exudes a sense of texture and decoration. Furthermore, the daylighting panel 9 fjP in this embodiment is fitted into a frame 10 and used as a door, as shown in FIG.

Note that in the present invention, as shown in FIG.

If you use heavy cloth on the raised pattern part 5.5゛.

Furthermore, the daylighting panel 9 can be obtained with a variety of appearance, and if the color of the top coat photopolymerizable paint 3 is changed, 5.
It is possible to obtain a lighting panel 9 that is rich in color tone, and also, as shown in FIG. In addition to the acrylic urethane modified resin system, the photopolymerizable paint 3 used in the present invention may be a polyester modified resin system, 2 an acrylic modified resin system, an acrylic epoxy modified resin system, etc. The time required, the amount of coating, etc. may be appropriately determined depending on the paint used, and the substrate 1 used in the present invention may be
In addition to the synthetic resin plate, it may be a glass plate or the like, as long as it has translucency.

〔Effect of the invention〕

As described above, in the method for manufacturing a daylighting panel of the present invention, the raised pattern can be extremely easily formed by the screen printing method without any modification on the surface of the substrate itself. To change the pattern of the area, it is sufficient to simply replace the screen.In addition, in the lighting panel obtained in the present invention, the surface of the raised pattern area is a fine, smooth, uneven surface, which bends the transmitted light and prevents the formation of photopolymerizable paint. Together with its luster, it creates a rich texture and decorative quality.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing one embodiment of the present invention, Fig. 2 is a perspective view showing a screen used in the same embodiment, and Figs. 3 and 4 are perspective views showing a daylighting panel obtained in the same embodiment. Figure, enlarged cross-sectional view of main parts. FIG. 5 is a perspective view showing how the daylighting panel obtained in the same example is used, and FIGS. 6 and 7 are a perspective view and an enlarged sectional view of the essential parts, respectively, showing the daylighting panel obtained in different examples. In the figure, 1 is a substrate, 2 is a screen, 3 is a photopolymerizable paint, 4 is an ultraviolet irradiation device, 5 is a raised pattern, and 6
7.8 is the mesoche part, 7.8 is the conhair 9 is the lighting panel, 10
is the frame. Patent applicant Matsushita Electric Works Co., Ltd. Representative patent attorney Toshimaru Takemoto (and 2 others) 4g

Claims (1)

[Claims] I) Applying a photopolymerizable paint to the surface of a translucent substrate using a screen printing method, and irradiating the photopolymerizable paint with ultraviolet rays while leaving traces of the screen on the applied surface to polymerize and harden the photopolymerizable paint. A method for manufacturing a daylighting panel, characterized by forming a raised pattern on the surface of a substrate.