JPS58912B2 - Manufacturing method of metallic painted board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a metallic coated plate used for the casing of a magnetic recording/reproducing device.

Conventionally, when assembling a casing using plastic resin, aluminum, etc., which are easy to process and inexpensive, exposing the plastic or aluminum material itself directly to the casing surface makes it difficult to interact with other surfaces. This may not be desirable due to the balance of

In such cases, paint mixed with metal powder such as silver powder is sprayed onto the material using a spray gun, resulting in a so-called metallic coating that gives the surface a three-dimensional roughened appearance. Ta.

On the other hand, as a means of attaching a predetermined paint layer, there has conventionally been a printing method using a roller, and this printing method has a lower speed compared to the above-mentioned application method using a spray gun.
This method is suitable for mass production.

However, in order to apply the above-mentioned silver powder paint using this printing method, it is necessary to make the particle size of the silver powder smaller than when applying with a spray gun to make it suitable for printing, otherwise good printing will not be possible. Moreover, since the coating was applied using a printing roller, the coating surface became smooth, resulting in a less three-dimensional effect compared to coating with a spray gun, making it impossible to fully achieve the intended purpose. .

The present invention aims to solve this problem, and one embodiment thereof will be described with reference to the drawings.

In the drawings, reference numeral 1 denotes a printing plate such as a resin aluminum plate on which a paint layer is printed, and its printing surface is provided with many small uniform irregularities 2, giving it a so-called matte finish.

Reference numeral 3 denotes a printing roller, and this roller 3 is used to print the silver powder paint 4 on the satin-finished surface 2 in the same manner as in the past.

Note that the depth of the unevenness 2 is such that even after the coating layer 4 of the paint 4 is provided with an unevenness larger than the diameter of the mixed silver powder, unevenness corresponding to the unevenness remains on the surface of the coating layer 4. It is configured.

In this way, when a paint layer mixed with silver powder is applied using a printing method on top of a matte finish, the surface of the paint layer also has a satin finish, which reduces the particle size of the silver powder mixed in. Even if it is small, it is also possible to apply a metallic coating with a three-dimensional effect similar to that obtained by applying silver powder with a conventional large particle size using a spray gun, even by using a printing method that is easier to work with than applying with a spray gun. According to the present invention, it is possible to provide a metallic-coated member at a correspondingly lower cost.

[Brief explanation of the drawing]

The drawing is a side sectional view schematically showing a main part of one embodiment of the manufacturing process of a metallic coated plate according to the present invention. 1... Aluminum plate (plate to be painted), 2...
...Irregularities, 3...Print roller, 4...
...Metallic paint.

Claims (1)

[Claims] 1. A large number of irregularities are provided on the surface of the plate to be painted with metallic coating, and a paint mixed with metal particles is applied to the irregular surface using a printing roller so that irregularities corresponding to the irregularities are created on the painted surface. A manufacturing method for metallic painted boards.