JPS6116855A - Manufacture of plastic decorative board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing decorative plastic laminates using epoxy resin.

The present invention is made by kneading an epoxy resin as a main material in a container such as a flat plate made of metal such as brass, a hardening agent, and further a coloring agent such as pigment, pearl, metal powder, synthetic resin powder, etc. as necessary. This is a method for producing a plastic decorative board characterized by filling the paint, vacuum defoaming, and after curing, simultaneously cutting the container and paint layer surfaces to form irregularities on the container and paint layer surfaces.

The present invention uses an epoxy resin as the main material, and a curing agent,
Furthermore, if necessary, the container is filled with a coating material made by kneading coloring materials such as pigments, pearls, metal powders, and synthetic resin powders in a bulge shape.

This is then degassed under vacuum. In addition, there are pearls,
When powders such as metal powders and synthetic resin powders are mixed in and defoamed for one time at a low temperature of 20℃ or less, the bubbles stirred and the powder is uniformly dispersed and hardened within the plastic composition, creating a beautiful pattern. Form. This pattern can vary greatly depending on the nature, shape, amount, etc. of the mixed powder. Furthermore, if the coating is carried out at a high temperature of 20° C. or higher, the fluidity of the coating material will be high and the dispersion will be too rapid to form a pattern.

The paint is initially filled into a certain container in a bulging shape, and then the container and the paint surface are simultaneously formed with unevenness by 7-rice cutting, etc., so that the paint has a moderate roughness, feels comfortable to the touch, and has a slightly angular shape. By changing the color, various reflections occur, giving the impression of a luxury product. The reason why simultaneous pressure cutting of the metal container and the paint surface is possible is because the air that got into the paint during crosstalk is removed by defoaming, and if defoaming is not done in advance. Cracks occur from air bubbles.

FIG. 1 is a perspective view of a flat container filled with the paint 2 and cured, and 3 is a pattern thereof. Further, 4 indicates a bulge.

Fig. 2 is a perspective view of the surface being ground into a smooth surface, and the present invention first smoothes the surface of the paint and then forms unevenness (- may also be used, but if necessary, the surface of the paint may be polished directly from the state shown in Fig. 1. It goes without saying that unevenness may be formed as shown in the figure.
The figure is an enlarged cross-section of the main part of FIG. 3, and 5 indicates unevenness. Note that the unevenness is not limited to the waveform shown in the drawings, but may have any shape.

The product produced according to the present invention has a beautiful luster and is suitable for a wide variety of uses, such as being able to be used for the bodies of lighters, cigarette cases, etc., or as decorations such as pendants.

Next, the present invention will be explained in more detail with reference to Examples.

Liquid construction resin (49% by weight), pearl (45% by weight)
, pigments (6 and 6) were mixed at room temperature (approximately 25° C.), and this mixture was further mixed with 30 parts by weight of a curing agent at room temperature to form a paint. The liquid epoxy resin is Tanabe Kagaku ■ rear (115 clear and 101 clear, weight ratio 34:15).
The pigment used was G20CH 501 (orange) manufactured by the same company.
,4G? 201501 (Pull ~), GRIN 20chi 501 (yellow), 2303 (red), RN (violet)
, GT (green), and CA30 manufactured by the same company is used as the curing agent.

Put this paint into a syringe and inject it onto the surface of the outer plate of a flat brass lighter (edge height 1 inch), filling it to a bulge of about 0.3 cm.

Next, this lighter outer panel was left at room temperature for about 20 minutes, placed in a vacuum container, and degassed at 10 wHg for 10 minutes. At this time, the inside of the vacuum container becomes 20° C. due to the reduced pressure, and the bubbles generated during defoaming cause pearls to be unevenly distributed within the paint, forming a pattern.

Next, it is placed in a furnace and heated at 60 to 135°C for about 4 hours to harden it.

Next, the surface of this lighter outer plate is ground with a grinder, the bulges are scraped off, and a diamond blade is used on a milling machine to grind the paint surface and the edge of the container to KO, 1 to O', 5.
mn cutting to finish the surface into an uneven shape.

t "Oh, this example is for forming a decorative board with a pattern, but in order to manufacture a decorative board with a single color and no pattern, the above)
The liquid epoxy resin may be omitted, the liquid epoxy resin may be 96% by weight, and all other matters may be the same as above.

[Brief explanation of the drawing]

The figures show the state in which the present invention is implemented. Fig. 1 is a perspective view of a container filled with paint, Fig. 2 is a perspective view of a state in which the surface has been ground into a smooth surface, and Fig. 3 is a perspective view of a container filled with paint. FIG. 4 is a perspective view of the layer surface cut to form unevenness, and FIG. 4 is an enlarged cross-sectional view of the previous main part. 1... Container, 2... Paint, 3... Pattern, 4
...Bulge, 5...Irregularities.

Claims (1)

[Claims] 1. A paint made by kneading epoxy resin as the main material, a hardening agent, and coloring materials such as pigments, pearls, metal powder, synthetic resin powder, etc. as necessary in a container such as a flat plate made of metal such as brass. A method for producing a plastic decorative board, which is characterized by filling, vacuum defoaming, and curing, and then simultaneously cutting the container and the surface layer of the paint to form irregularities on the surface of the container and the paint.