JPH0454748B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a pattern on a metal surface by forming a line pattern in a desired pattern on the surface of a metal body such as aluminum, stainless steel, brass, or copper. For example, the purpose is to allow the shape of a target line pattern portion to be separated from other line pattern portions to be freely set.

BACKGROUND ART The use of the excellent decorative luster of the surfaces of metal bodies such as aluminum, stainless steel, brass, and even copper is used in many fields to decorate the appearance of products.

In order to create a metal decorative body that uses the luster, or metallic feel, of the surface of a metal body as an element to create a decorative effect, the surface of the base metal body is made mirror-like to emphasize its shine, and the surface of the metal body is The brilliance of the reflected light rays produced an excellent decorative effect.

However, as is clear from the above description, in conventional metal decorations of this type, the surface of the base metal body is mirror-like, so the light rays reflected from the surface of the metal body are directed in a single direction. Moreover, as a result, the entire object was seen to shine uniformly, and there was a dissatisfaction that the form of the brightness was monotonous.

In order to resolve this dissatisfaction, conventionally, the surface of the metal body is polished using a large number of rotationally driven polishing bodies, and a large number of thin arc-shaped grooves are cut into the surface of the metal body to form a circular line pattern. However, this circular line pattern makes the surface of the metal body have extremely fine irregularities, and the angle of reflection of the light reflected on the surface of the metal body is brought to a state close to diffuse reflection, resulting in an excellent optical decorative effect. It is starting to be adopted.

The above-mentioned method of decorating metal bodies is excellent in its own way, but the line pattern, which is a large number of thin grooves formed on the surface of the metal body, is formed by polishing the surface of the metal body with a polishing body. In addition, since the polishing body is generally driven along a certain linear line, for example, a circular or straight line, to perform the polishing operation, each thin groove of the line pattern formed becomes a certain circular arc or straight line. As a result, the line patterns that are formed inevitably end up having exactly the same form.

Therefore, the above-mentioned metal body with a line pattern on its surface can create a dynamic optical decorative effect by slightly tilting it; The optical decorative effect is almost uniform over the entire surface of the metal body, resulting in little variation.

In order to compensate for this lack of change, there are some metal surfaces that do not have a line pattern added to them, but it is not possible to accurately set the shape of the part of the metal body surface that does not have this line pattern into a free shape. Therefore, it was not possible to achieve a purposeful decorative effect.

The present invention was devised to eliminate the dissatisfaction with the conventional example described above, and even on the surface of the same metal body,
A state of optical decoration effect in which a surface portion formed with a line pattern of many thin grooves in a predetermined form appears, and an optical decoration in which a surface portion formed in a line pattern of many thin grooves in a different form appears. Taking advantage of the fact that the appearance of the effect is completely different from the state of the effect, after forming a line pattern of a predetermined form on the surface of the same metal body by primary processing, a certain shape is applied to the surface. By forming line patterns of different shapes through secondary processing while shaping the pattern mask,
A portion that has undergone only the primary processing according to the pattern of the mask remains on the surface, thereby forming a portion that produces different optical decorative effects on the surface of a single metal body.

The present invention will be explained below with reference to the drawings.

In the present invention, a primary pattern 4, which is a line pattern of many thin grooves, is formed on the surface 2 of a metal body 1 by polishing with a polishing body 3.
The narrow grooves of the primary pattern 4 are formed by a primary polishing process (a) in which the pattern is shaped, a printing process (b) in which a patterned hardened coating 6 of a desired shape is attached and formed by pattern printing with cured ink, and the polishing body 3' is polished. A secondary pattern 5 is formed by cutting a line pattern of many thin grooves that intersect with each other.2
The next polishing step c and the patterned hardened coating 6
This is a method of forming a pattern on the surface of a metal body, in which a line pattern is formed on the surface 2 by sequentially performing a cleaning step (2) in which the line pattern is removed with a solvent.

In the illustrated embodiment, the polishing body 3 presses its end face against the surface 2 while being rotationally driven.
The primary pattern 4 formed on the surface 2 in the primary polishing step (a) is a form in which a large number of circular line patterns are located adjacent to each other.

The form of the primary pattern 4 formed on the surface 2 by this primary polishing step A is not limited at all, and it is possible to use a different structure as the polishing body 3, or to perform the polishing operation using the polishing body 3. At the same time, by moving the metal body 1 along a predetermined line, it is possible to obtain primary patterns 4 with various shapes.

However, it is necessary to add a line pattern of a different form to the surface 2 on which the primary pattern 4 has been applied in the secondary polishing process C to obtain a secondary pattern 5 that is as different from the primary pattern 4 as possible. Therefore, it is desirable that the form of the primary pattern 4 is relatively simple.

Printing step 2, in which the pattern cured film 6 is attached to the surface 2 on which the primary pattern 4 is formed, may be performed according to a normal printing technique.

However, since the patterned hardened film 6 attached to the surface 2 by this printing is required to have sufficient hardness, it is hardened by baking after printing the desired pattern with, for example, epoxy-based hardening ink. is desirable.

In addition, this patterned hardened coating 6 is polished in the manner shown in FIG. As such, the thickness is such that it completely fills the narrow grooves of the line pattern forming the primary pattern 4, but does not protrude from the surface 2 as much as possible.

This is to make the shape of the pattern area exposed on the surface 2 by this patterned cured film 6 more similar to the shape formed by the patterned cured film 6.

Since the secondary polishing step C is applied to the surface 2 to which the patterned hardened coating 6 is attached and the primary pattern 4 is formed, what is actually polished in the secondary polishing step C is: There are only two portions of the surface to which the patterned hardened coating 6 is not attached.

The line pattern of a large number of thin grooves cut and formed in this secondary polishing step C is formed in a form that intersects with the thin grooves in the primary pattern 4.
By polishing in this secondary polishing step C, the primary pattern 4 becomes a secondary pattern 5 that has a completely different optical decorative effect.

The polishing body 3' used to form the primary pattern 4 into the secondary pattern 5 in this secondary polishing step C is not particularly limited, and for example, in the illustrated embodiment, the polishing body 3' The same polishing body 3 as used in the primary polishing step (a) is used, but the rotational drive direction is simply set in the opposite direction.

Of course, at this time, it goes without saying that the polishing position on the surface 2 is set so that the many fine grooves cut by this polishing body 3' intersect with the many fine grooves of the primary pattern 4.

In any case, this secondary polishing process (c) does not involve completely cutting and forming many thin grooves on the surface 2 as in the primary polishing process (a), but instead involves polishing the surface 2 that has already been polished in the primary polishing process (a). A large number of thin grooves that intersect with the many thin grooves of the primary pattern 4 are simply cut on the surface 2, and it is necessary to be careful not to polish until the primary pattern 4 is also cut. .

Through this secondary polishing step C, the patterned hardened coating 6
A secondary pattern 5 will be formed on the surface 2 other than the surface 2 portion to which the pattern hardening film 6 has been attached. The pattern exposes two parts of the surface of the primary pattern 4, and as a result, the two parts of the surface of the primary pattern 4 form the desired pattern shape in the shaped surface 2 of the secondary pattern 5. This means that it is possible to obtain a surface structure located at .

The patterned cured coating 6 may be washed off by using ordinary means. For example, when the patterned cured coating 6 is molded with epoxy-based curable ink, the patterned cured coating 6 may be washed off using triprene as a solvent. All you have to do is wash it.

Thus, according to the present invention, the surface 2 of the metal body 1
Since it is possible to shape different carved patterns together, and also to make one of the carved patterns into a desired free shape, it is possible to obtain a decorative effect due to the shape as well as a combination of optical decorative effects. You will be able to do that.

Note that the surface of the metal body formed according to the present invention is
Although it exhibits a sufficient decorative effect as it is, by coating the surface with a multicolored synthetic resin coating layer via a synthetic resin transparent coat,
In addition to dynamic changes in brilliance, changes in colored light rays can also be used as decoration.

As is clear from the above description, the present invention allows cutting line patterns of different shapes to be formed on a single surface of a metal body, and also allows the shape of one cutting line pattern to be freely set. Therefore, different optical decorative effects can be made to appear according to the set shape, thereby giving meaning to the appearing decoration, and the ordinary polishing process, printing process, Since it can be carried out only by a washing process, it is easy to carry out, and furthermore, the pattern setting can be determined only by printing and is achieved accurately, so it is possible to reliably obtain decorative products of constant quality. It has many excellent effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the process order of the present invention.
FIG. 2 is a perspective view showing a specific example of the primary polishing process. FIG. 3a is an external perspective view showing an example of molding a patterned hardened film. FIG. 3b is an enlarged vertical sectional view of a main part showing an example of applying a patterned hardened coating to a surface formed with a primary pattern. FIG. 4 is a perspective view showing the secondary polishing process. FIG. 5 is an external view showing an example of a completed pattern. Explanation of symbols, 1...Primary polishing process, B...Printing process, C...Secondary polishing process, D...Washing process, 1
...metal body, 2...surface, 3,3'...polishing body,
4...Primary pattern, 5...Secondary pattern, 6...Pattern hardened film.

Claims (1)

[Claims] 1. A primary polishing step in which a primary pattern, which is a line pattern of many thin grooves, is formed on the surface of a metal body by polishing the polishing body, and a pattern of a desired shape is formed by printing a pattern of hardened ink. a printing process in which a hardened film is attached and molded; and a secondary polishing process in which a secondary pattern is formed by cutting a line pattern of a large number of thin grooves that intersect with the narrow grooves of the primary pattern by polishing a polishing body. A method of forming a pattern on the surface of a metal body, which comprises sequentially performing a cleaning step of removing the patterned hardened film with a solvent.