JPH03281786A - Ornament with multicolored pattern film - Google Patents

Abstract

PURPOSE:To provide an ornament on which a multicolored pattern film is easily formed by forming a film consisting of two or more layers dissimilar in color tone and then removing a part of this film by the prescribed depth by means of laser. CONSTITUTION:A watchcase 1, etc., made of stainless steel are set in an ion plating apparatus, on which a gold-colored film of TiN 2, etc., is formed to about 1mu thickness. Subsequently, a gray-colored film of TiC 3, etc., is formed to about 0.5mu thickness. Then, a blue-colored film of ZrO 4, etc., is formed to about 0.3mu thickness. A part of the resulting multilayered film is removed by about 0.4mu, between the surface and the position at a depth of about 0.4mu, by means of laser beam, and then, another part of this multilayered film is removed similarly from the surface to the position at a depth of about 1mu. By the above procedure, the gold-, gray-, and blue-colored film can be obtained. By this method, a complicated pattern can be easily formed, and the superior ornament can be provided.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is applicable to accessories such as watches, glasses, tie pins, writing implements, handbag clasps, scissors, knives, Western tableware, etc., and fishing equipment, golf equipment, etc. It relates to ornaments such as entertainment and sporting goods.

(Prior art) Conventionally, multicolor pattern coatings have been produced using ion plating or wet plating. A method to create a multicolored film by peeling off the masking material after forming it.

Alternatively, there is a method of forming a lower PI film and an upper layer film of different color tones, forming a pattern thereon with a masking material, and etching the upper layer film after the pattern is cured, thereby obtaining a multicolored film.

(IQ to be solved by the invention) In such conventional methods, when forming a pattern, it is essential to apply an organic masking material by RP printing or the like. However, the surfaces of decorative items are mirrored, satin, satin, etc. for decorative purposes, and are not limited to heavy surfaces, but also have uneven surfaces and complex shapes, and it is extremely difficult to accurately apply masking material to such areas. It may be difficult to
As a result, there are many design constraints when commercializing products. Furthermore, as described above, many decorative items have a variety of shapes, and it is difficult to mechanize the application of the masking material, which has to be done manually by skilled workers, which is a major factor in high costs.

After forming the lower layer film, masking is applied, and the upper NW is applied again.
For example, when using chemicals, the method requires two steps of forming A and then peeling off the masking material, or the method of forming a multilayer film, masking some parts, and peeling off the upper layer film on the unmasked parts. A combination must be selected that does not attack the membrane.

(1! Means for Solving Problem I) In view of the above problems, as a result of intensive research, in the present invention, a certain coating is irradiated with a certain laser beam to achieve high accuracy. Taking advantage of the fact that the film can be removed at a certain depth, ion plating, sputtering,
Alternatively, a multicolored coating can be easily obtained by forming coatings with different tones of 2, Iw or more through a series of treatments by vapor deposition or wet plating, and then removing the coating at a certain depth with a laser. be.

(Effects and operations of the invention) As explained above, it is possible to easily form complex patterns on complex shapes, and it is possible to reduce costs without requiring complex processes. It is possible to provide decorative items.

(Text example) Place one case of stainless steel watch into an ion plating device, and after exhausting to 10-5 Torr,
Evaporate titanium using an electron gun evaporation source, apply 14OV to the ionization electrode to ionize the titanium, and remove 60% of nitrogen gas.
05CC? Then, the gas was changed to acetylene and a gray TiC film of 0.5μ was formed.The primary evaporation source was changed to zirconium, the gas was changed to oxygen gas, and 5003CCMi was introduced. ,
A blue film of ZrO was formed to a thickness of 0.3 μm. This coating...
When the coating was removed to a depth of 0.4μ from the surface using a 50-meter laser beam, and the coating was removed to a depth of 1μ from the surface using a 70111 laser beam after changing the position, a three-color coating of gold, gray, and blue was formed. was gotten.

Although the explanation has been given above using ion plating as an example, the same applies to other methods. Furthermore, the same applies to coatings obtained by combining two or more of these methods. Furthermore, although a three-layer coating has been described, the same applies to three layers or four or more layers.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-section of a watch case according to an embodiment of the present invention. 1: Yo Jiji 1 Case 2 is Ti + 4 3 is TiC 4 is Zr 0 Procedural amendment (0 button June 7, 1990 1゜ Display of case 1990 Patent Application No. 82360 3, person making amendment case connection of

Claims (1)

[Claims] A part of the multilayer film with different colors formed on the surface of the substrate by ion plating, sputtering, vapor deposition, or wet plating is removed at a certain depth using a laser to form a multicolor pattern film. Ornaments characterized by the fact that they are formed.