JPS5916989A - Preparation of separate character by electrotyping - Google Patents

Abstract

PURPOSE:To prepare the titled separate character capable of being adhered to a commodity in accurate mutual positional relation of the character, by a method wherein a disposable electrotyping substance is provided to the outer peripheral edge of the character in order to prevent excessive electro-deposition and used as a mask for coating an adhesive to be discarded. CONSTITUTION:Resist 2 is applied onto a metal plate 1 such as a stainless steel plate by a photographic technique and electrotyping is subsequently applied to form disposable electro-deposition substances 4 by a central electro-deposition substance 3 coming to an objective separate character 3 in order to make the thickness of said character 3 uniform. In the next step, the electro-deposition substance 3 and the disposable electro-deposition substance 4 are separated from the resist 2 and the metal plate 1 by a vinyl tape 6 having a weak adhesive 5 applied thereto. At this time, the separate characters due to electrotyping mutually keep accurate mutual positional relation. Subsequently, a strong adhesive 7 is applied to the peeled surface thereof while the disposable electro-deposition substance 4 is peeled off to be discarded. By this method, the remaining character is adhered to a commodity through the adhesive 7.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing loose letters made by electroforming and for attaching them to products. More specifically, in the production of metal loose letters by electroforming, the discarded electrodeposited material provided to prevent excessive electrodeposition at the outer edge of the letters is used as a mask for applying adhesive to the letters and then discarded. This invention relates to a method for manufacturing rose letters by electroforming. Conventionally, it has been extremely difficult to line up and attach loose letters, etc. that represent a brand, etc. to a regular product because it involves arranging them in a predetermined line and applying adhesive only to the letters.

The present invention improves and simplifies this process and provides a method for manufacturing loose characters that allows the relative positional relationship of the characters to be accurately attached to the product.

The process will be explained below. As a first step, a resist 2 is applied to a metal plate 1 (for example, stainless steel) by photo printing or the like.

As a second step, it is subjected to electroforming.

As shown in the drawing, a sacrificial electrodeposited material 4 is applied next to the electroformed material 3 that will become the central character, so that the thickness of the desired loose character 3 is made uniform. As a third step, the electroformed product 3 and the electrodeposited material 4 are separated from the resist 2 and the metal plate 1 using a vinyl tape 6 or the like with a weak adhesive 5 attached thereto. At this time, the relative positions of the electroformed rose letters are not limited to spraying, and of course, other methods may be used. As a fifth step, the sacrificial electrodeposit 4 is peeled off and removed. This is a part other than necessary characters, so discard it. Attach the remaining letters from the 6th step to product 8 to be sold. Then, the letters will be aligned and attached. 6th
As a modification of the process, the product produced in the fifth step may be stored with a release paper 9 attached thereto, and the release paper 9 may be removed at the next location to add letters to the product. In the sixth step, the electroforming 3 is pulled by both the adhesive 5 of the vinyl tape 6 and the adhesive 7 such as a spray, but the adhesive 7 is stronger and sticks to the product.

If adhesive is sprayed over the entire surface without a mask of discarded electrodeposition, etc., there is a drawback that when the rose letters are pressed onto the product, some of the strong adhesive that has adhered to areas other than the rose letters will stick to the product. The present method does not have this drawback. A weak pressure-sensitive plate adhesive film electrodeposited to a thickness of approximately 50 microns in a nickel electroforming bath was formed around the adhesive by a known method to a width of 0.3 mm using a high degree of sacrificial electrodeposition, and was then pressure-bonded thereon. Then, all the electrodeposited material was removed from the stainless steel plate. Next, after spraying a strong pressure-sensitive plate adhesive over the entire surface, only the discarded electrodeposit was peeled off and this was applied to the product, with very good results.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 shows the first step and the second step.
The figure shows the second step, FIG. 3 shows the third step, FIG. 4 shows the fourth step, FIG. 5 shows the fifth step, FIG. 6 shows the sixth step, and FIG. 7 shows the sixth step of another example. FIG. 8 corresponds to FIG. 2. A partial plan view of the product, Figure 9 is a completed plan view of the product. Explanation of symbols 1...Metal plate 2...Resist 3...
...Electroformed product 4...Discarded electrodeposition material 5...
Adhesive 6... Vinyl tape 7... Adhesive 8... Product 9... Release paper Patent applicant Odensha Co., Ltd. Figure 2 Figure 6 Figure 7 Figure 9

Claims (1)

[Claims] In the production of metal loose letters by electroforming, a discarded electrodeposited material is provided as a mask to prevent excessive electrodeposition on the outer peripheral edge of the letters, and is discarded after being used as a mask for applying adhesive to the letters. A method of manufacturing rose letters by casting.