JPS5898336A - Preparation of dial plate for clock - Google Patents

Abstract

PURPOSE:To prepare a dial plate at a low cost by a simple process, by a method wherein a photosensitive resin monomer flowed into the concavity of a mold for letters is made to cure and transferred to a plastic film, in which the letter part only is metallized, and then the film is bonded to the base. CONSTITUTION:A photosensitive resin monomer 4 is flowed onto a mold for letters 3, in which the letter part is recessed. Plastic film 6 and mask 7 are put in turns on the mold 3 to be developed after ultraviolet irradiation. Resist 9 is formed on the part other than the letter part in a transparent plastic film 8, and adhesive 10 is partially applied to the part in the absence of the resist 9 in the film 8. Then, plastic letter 5 is bonded to the film 8, and a metallic thin film layer 11 is formed all over the surface of the film 8 including the plastic letter 5, and there after the resist 9 is removed. The transparent plastic film 8 in which the letter part ismetallized is bonded to a dial base plate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a watch dial. l! In detail, the present invention relates to a method for manufacturing literary books that provides a low-cost dial.

In the manufacturing method of plastic dials, the process that is the bottleneck for Italian printing is the typesetting process.

The current post-letter typesetting process is the completed letter fK ([several letters are manually planted on the letter plate pace sand, 1 mechanized,
This is because automation is not possible.

The typesetting process is done by machine. The reason why it cannot be automated is that it is difficult to automatically feed the characters.The characters have a complicated shape and are difficult to line up. It turned out to be defective, and the amount of materials I had to supply myself was very low.

The dial manufacturing method of the present invention simplifies the process, centering on the character typesetting process, and provides a one-machine, easy-to-format dial manufacturing method.

About the manufacturing method centered on the typesetting process of the current dial W
K Detailed explanation 2 First, the current method of manufacturing characters will be described.

Press the face with a yellow W11JK press to form one letter and the letter V+. Figure 1-')*'') Next, strike out the letters with a press (, Figure 1-2).

5) Next, barrel polishing! Do I and remove the Pleine method negative crab II (primary rNi base plating. Diamond cut the upper surface of the primary character and finish plating to complete the character.

11th station - 5), 6) Next, the process of painting the persimmon character on the completed character 1f complete 5 completed Bunzai Beine g2 will be explained.

First, by hand, grab the completed letter 1 with tweezers and insert the letter foot into the letter hole of the completed six-character beine meal 2.

Next ff, from the back stretching of the completed dial base board 2.

Glue fiL in the letter hole of the dial paste material, letter 1? The dial is completed by fixing it on the fully-melted dial base plate.

2nd f; 71 As mentioned above (the work of manually inserting one character is
At least 11 letters and 6 letters must be planted on one i card, and with the variety of Mosquito Irj designs, the width and thickness of the letters have become small. Because of the amount of time required to type type the letters with a pestle, it is extremely time consuming.

The present invention replaces the above-mentioned current manual planting method.

The manufacturing process is mechanical and automatic.

The method for manufacturing bundling of the present invention will be explained.

A letter mold with concave letter parts? Use a wave of photosensitive resin on top of it, and then put a plastic film on top of it and the text part is white! The three masks are overlapped and developed after being irradiated with ultraviolet light.

Next, prepare a transparent plastic film and 1. A resist film is formed on the soil except for the text.

Next, a portion of the adhesive f is applied to the portion of the transparent plastic film where the resist film is not covered.

Next ff, Brynchitsk letters '5L, which were formed in a way that was difficult to form.
−, Adhere to the upper transparent blank film.

Next, a gold striped thin film layer is formed on the entire surface of the transparent branutic film to which one letter is adhered.

Next, the resist film formed on the transparent plastic film is peeled off.

Lastly, only the part with the plastic letters above is gold maple IJL.
This is a method for manufacturing a letter board for a mackerel scale, which is characterized in that a transparent Blufftic film with fIII distortion is adhered to a completed dial base plate.As described above, the method for manufacturing a dial plate of the present invention is as follows. At least 1
Characters that can be used on two dials can be used at the same time, 14
The character process only needs to be done at least once for one dial plate, and the machine is easy to use. (2) It has the feature that continuous processing using a hoop piece is possible, and it is possible to provide a dial plate at an unprecedentedly low cost.

The manufacturing method of the present invention will be explained in more detail with reference to all the figures.

When preparing the character cape shadow type 5 in which the part of each character is concave, the concave characters are in the same position and in the same number as the dial to be completed.

It is desirable to use urethane-based or silicone-based rubber for materials used in the world.In particular, commercially available silicone rubber thread Silpot 184 manufactured by Tauyu Nink Co., Ltd. is transparent, has excellent transferability, and has a hardening time. It is ideal because it is relatively short and the mold has excellent durability.

How to make the character mold 50 using the above-mentioned 186r will be explained.

First, make the desired character fIIk by machining, a flat @
(for example, a metal plate) with the letter f at the same level as the target dial plate.
Prepare a master with 12 pieces arranged.

Next, the main agent of Silpot 186 and a hardening agent are mixed in a ratio of 110:1, vacuum deveslated, and then poured into the above-mentioned manutar of Silpot 186f, which is vacuum deflated.
The silicone rubber hardens when left in an atmosphere of 0° C. for 60 minutes. After curing, a mold 5 for the letter W made of silicone rubber is completed, in which the inside of the mask-f wound and the letter part are concave.

The 1F silicone rubber mold has very high transfer accuracy in 1 dimension, and the diamond-cut surface of the ``Fll'' character can be transferred as is, and since it is cured under atmospheric pressure, there is very little distortion, so the size is very good. Also in terms of nrg, it is possible to create a sentence of almost 1m1- with the master.

Take a letter forming mold with a concave part of the letters H1i', pour photosensitive resin monomer q1 onto it, and use a screwdriver to make the thickness uniform over the entire surface of the photosensitive resin monomer 47' + E type. so that it becomes

Next, a PET film 6 with a thickness of 10μ is set on the photosensitive resin monomer 4 applied flatly.
On the LT film 6, the one character part is a white robe mask 7
Overlap. The above mask 7 is set so that it matches the concave part of the letter [sculpture 5]. FIG. 5-1) As the above photosensitive resin upper tab, it is preferable to use a commercially available photosensitive resin letterpress material for white board printing.An example is APIFt photosensitive S resin manufactured by Asahi Yosei Co., Ltd.

In the above operation, baking soda is used to fill only the photosensitive resin monomer 4 of the one-character mold 5 and the PET film 6 to prevent air from entering.

Next, when IJV (ultraviolet light) is irradiated from the mask φ117, only the white part of the mask passes through.

A photosensitive resin monomer resin polymer 5 is formed by photopolymerization. Figure 5-2) Asahi Kasei A
When using FF photosensitive resin, UV intensity is 5 wIW
/ Sonoyuki, hardens with 60 formula under the conditions of '.

Next, peel off the PET film 6 and mask 7.

When the photosensitive resin monomer tl is dissolved in a developer, plastic letters 5 made of a photopolymerized photosensitive resin polymer are formed in the concave portions of the single letter mold 5.

When AP'B is used, the developing time is 1 minute at 35° C. using a developer solution t'1 NaoH1 water droplets.

Next, prepare a transparent grammatic film 8'f.

A resist film 9 is formed thereon except for the characters. 5th H-s The resist 9 used above is BosiResinuto manufactured by Tokyo Ohka Co., Ltd., and the coating thickness is 1 to 2μ, and the pre-baking temperature is 75℃~
The temperature was 80° C., and the developer was a KOHI aqueous clear water solution.

Next, resin of soil transparent plastic film 8) 11
Adhesive 10 is partially applied to the portion where 19 is not covered. Figure 3-4 Next, position the transparent planar mask film 8 that has been molded into the character forming mold 5 using + and has adhesive 10 partially applied to the parts where the large plantic characters 4 and 1 character are to be formed. They are superimposed and bonded to the transparent plastic film 8. Figure 95-5 If an ultraviolet curing type adhesive is used, the plastic letters 5 will be instantly bonded to the transparent plastic film 8 by irradiating ultraviolet light from #1ll of the transparent plastic film. 5th M-6th 1st
A gold layer thin film layer 11 is formed on the entire surface of the transparent planutic film 8 to which the letters have been bonded by a wet method or a dry method. 6th
Figure 7. Gold maple thin film #11 was formed using a wet method using Hitachi Chemical's electroless N1 Brosene. When a Kanasu thin film layer with a thickness of 1000A was applied on Rij Asahi Kasei's APl'l, it was possible to form an N1 thin film layer with good adhesion and a glossy surface.

My father used low-flow sputtering equipment for the dry method.

When CR was sputtered to a thickness of 500X, a thin film of Or with good adhesion and gloss was formed.

Next, when the resist film 9 formed on the transparent brauntic film 8 is removed along the peeling line 7, the resist film 9
Earth Metal Thin @ Hada 11 was also knocked down. Figure 5-
8 The resist film 9 was made of commercially available Tokyo Ohka PoIJ resist (0F
When FR-2) is used, the peeling is similar to that of a KOH aqueous solution, and the resist film 9 is completely peeled off in 30 to 60 seconds at room temperature.

Finally, a transparent blank film 8 is completed in which only the portions of the plastic characters 5 are treated with gold. When this film is adhered to the large dial plate metal plate 2, the temporary character for a watch of the present invention is completed. Figure 5-9 In the above, the adhesive used was a thermoplastic transparent resin, and the thermoplastic transparent resin was spray-painted to a thickness of 5μ on the letter metal base plate 2 and heated to 80℃. A transparent plastic film 8 was attached to the dial base 1g12 by thermocompression bonding.

In the case of the above-mentioned okage characters, the window frame is one character out of proportion.

Marks can be used in the same way as main characters.

As shown above, the method for manufacturing a dial plate of the present invention is as follows.

Is the typesetting process of handicrafts a bottleneck in the current dial manufacturing method? It is possible to mechanize, automate, and even write a large number of letters fi - big 1 o'clock. Patch processing processing. It has a feature that allows continuous processing of bun'g-meshi by hoop formation.

This provides an unprecedentedly low-cost dial plate.

[Brief explanation of the drawing]

Figure 1 shows cross-sectional views 1), 2), and 5) of the character manufacturing process using conventional machining methods, and a corresponding plan view 4).
, 5), 6), Figure 2 is a cross-sectional view of a character cut made using the conventional processing method and completed using the following characters, Figure 6 1) to 9
) shows a cross-sectional view of the manufacturing process according to the dial manufacturing method of the present invention. 1Fi character by conventional machining method, 21 by conventional force p
Completed pressed dial pace board by construction method, 5 digits Y function, 4 is photosensitive resin monomer, 5 is photosensitive 11'1lTh
Holimar, 6iFKT film, 7n mask. 8. Transparent plastic film, 9Fi resist film. 10 indicates the adhesive, and 11 indicates the thin film layer. Applicant: rI! Co., Ltd. ii7] Seikoshadai Chinto Patent Attorney Mogami Muzai! Mouth fangs 2 marks

Claims (1)

[Claims] Using a mold of the letter W, which is concave at the part of the letter T, a photosensitive resin monomer is soaked into the mold, and then a plastic film mask 'f is superimposed on the soil, and ultraviolet rays are irradiated. After irradiation, it is developed and then a transparent plastic film is applied, and a resin film (f) is applied on the area except for the characters.
Y-1 Next, resist 1 of the above-mentioned branut film! Partially apply adhesive to the part that has not been marked for 9 hours.
Next, the buranosentsuku characters molded into a single character mold were glued onto the above transparent plastic film, and 11 thin metal layers were applied to the entire transparent plastic film to which the single character was glued. First, remove the KM-coated resist film from the transparent plastic film. Finally, only the plastic character σ portion is metallized, and the fc transparent plastic fumelum is adhered to the completed dial pace plate.