JPS61113784A - Production of ornamental product manufactured by electroforming - Google Patents

Abstract

PURPOSE:To manufacture an ornamental product which has a smooth surface and had distinct rigidness by forming a prescribed pattern consisting of an insulator to an Al base plate subjected to alumite working then removing the other alumite layer and electroforming an electrodeposited material on the surface and removing the insulator. CONSTITUTION:The desired pattern is formed by using printing, etc. of the insulator 2 onto the Al base plate constituted by forming the alumite working layer B on an Al base A. The alumite layer B on which the insulator 2 is not formed is then removed by alkali etching. The electrodeposited material 3 is formed thereon by electroforming of Ni, etc., and thereafter the insulator 2 is removed to obtain a product C. The product C is subjected to ornamental plating of gold, silver, etc., according to need.

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is applicable to decorative products made by electroforming, such as decorative laminates for surfaces such as compacts, cosmetic cylinders such as lipstick holders, and works of art such as relief paintings. Relating to a manufacturing method.

``Conventional technology'' Conventionally, the surfaces of compacts and lipstick holders often have a relief pattern with beautiful patterns. However, conventionally, those made from pressed aluminum often have vague patterns, and those made by etching have the disadvantage that the irregularities on the surface have sharp edges that are dangerous.

``Problems to be Solved by the Invention'' In the present invention, these products are made by electroforming, so that all the convex parts on the surface are semicircular, and it is possible to make products that are not dangerous even if the surface is rubbed by hand. The height of the convex part can be made to be over 30 microns thick, and its beauty is far superior to conventional products. Another advantage is that if a pattern such as a thin hairline is dyed on the alumite surface of the base material, the pattern will appear on the base when the product is finished by electroforming.

[Means to solve problems] The explanation will be given below with reference to the drawings.

First, prepare a substrate l made of an aluminum plate treated with alumite. A is an aluminum base and B is an alumite processed layer.

Next, in the first step, in order to create a desired pattern on the alumite surface, an insulator 2 matching the pattern is formed by printing or photography.

': As the fS2 process, the alumite processed layer is removed only in areas where there is no insulating material. This is usually done by alkaline etching.

In the third step, the material produced in the second step is electroformed with nickel or the like to form an electrodeposited material 3.

As the fourth step, the resist is removed.

This completes product C, but since the product is originally a decoration, a better product can be obtained by applying decorative plating with gold, silver, etc.

``Effects of the Invention'' According to the present invention, an excellent electroformed decorative product is produced that has no sharp edges on its surface and is safe to rub by hand, and is aesthetically beautiful with its unevenness clearly visible. Obtainable.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an explanatory sectional view of an aluminum plate subjected to alumite treatment, FIG. 2 is an explanatory sectional view of the first step, and FIG. 3 is an explanatory sectional view of the second step. FIG. 4 is an explanatory sectional view of the third step, and FIG. 5 is an explanatory sectional view of the product. Explanation of symbols 1 ... Substrate 2 ... Insulator 3 ... Electrodeposited material A ... Aluminum base B ・
...Alumite processing layer C...Product patent applicant
Odensha Co., Ltd. Figure 2, Figure 3, Figure 4

Claims (1)

[Claims] An insulator 2 is applied to an alumite-processed aluminum substrate 1 in a desired pattern, then etched to remove the alumite layer where no insulator is attached, and then electroformed. A method for producing a decorative product made by electroforming, which comprises removing the insulating material 2 after forming the electrodeposited material 3.