JP2002214365A - Dial for timepiece and manufacturing method for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dial for a timepiece made of paper, increased in strength, capable of preventing the occurrence of bending and warp, and tolerant of water, and a manufacturing method for it. SOLUTION: A base plate 2 made of paper is laminated with transparent sheets 4, 6. The surface of the base plate 2 is covered with the transparent sheets 4, 6, thereby preventing dirt. The base plate 2 covered with the transparent sheets is increased in strength, and hardly broken. The surface and back 2a, 2b of the base plate 2 are covered and sealed with the transparent sheets 4, 6, thereby preventing absorption of water. According to this manufacturing method, good productivity is attained and the time required for manufacturing can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece dial made of paper and, more particularly, to a timepiece that can be handled in the same manner as a dial made of metal or synthetic resin.

[0002]

2. Description of the Related Art Conventionally, as a timepiece dial, a metal plate such as aluminum or a synthetic resin plate such as plastic has been used.
A dial made of such a metal plate or a synthetic resin plate,
It is easy to handle because it has enough strength,
In order to print indices and marks on the surface, it was necessary to form a plate.

In recent years, in a timepiece, a photograph has been transferred to a dial according to a user's order, and decoration has been applied according to the order. For this reason, many kinds are produced in small lots. In the case of such a custom-made or small-lot production, a dial made of the above-mentioned metal or synthetic resin forms a plate, so that printing takes too much time and cost, and the commercial value is reduced.

[0004] Therefore, a dial using paper that can easily print indices, photographs, decorations, and the like with a printer such as an ink jet printer has been used.

[0005]

In the case of a dial made of paper printed by a printer as described above, the time required for printing can be reduced and the cost can be reduced. However, since the material is paper, there is a problem in that if care is not taken in handling, dirt and tears occur.

Also, in the case of this dial, moisture, such as moisture, may cause bending, warping, or distortion, and may cause a defect such as a pointer touching the dial surface. In particular, the distance between the dial surface and the hands is narrowed in order to make the watch thinner, and even with a slight sledge of the dial, the hands may come into contact. For this reason, when a paper dial is used, it is necessary to set a large interval with the hands in anticipation of occurrence of bending or warpage, which hinders a reduction in thickness.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and enhances the strength of a dial made of paper to make it easy to handle. The watch has no bending or warpage and is resistant to water. And a method of manufacturing the same.

[0008]

A timepiece dial according to the present invention comprises: a substrate formed of paper having a dial face printed on a surface thereof;
A transparent sheet that covers the substrate in close contact with the front surface or the front and back surfaces of the substrate.

Further, the method for manufacturing a timepiece dial according to the present invention is characterized in that a front surface or a back surface of a substrate formed of paper having a dial surface printed on a front surface is laminated with a transparent sheet.

Further, in the method of manufacturing a timepiece dial according to the present invention, the front surface or the front and back surfaces of a large substrate formed of paper having a plurality of dial surfaces corresponding to the plurality of dials printed on the front surface are formed of transparent sheets. The method also includes a step of laminating, and a step of cutting the large substrate together with the transparent sheet and separating the large substrate into individual dials.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the timepiece dial of the present invention, a substrate formed of paper is laminated with a transparent sheet. As described above, since the transparent sheet is in close contact with the substrate, and the surface thereof is covered with the transparent sheet, dirt can be prevented. Further, by covering the substrate with the transparent sheet, the strength of the substrate can be increased and the substrate can be hardly broken.
Furthermore, by covering the front and back surfaces of the substrate with a transparent sheet and sealing it, the strength of the substrate can be further increased, moisture absorption can be prevented, and warpage and bending can be prevented.

On the other hand, the method for manufacturing a timepiece dial according to the present invention, in which a substrate printed on paper is laminated with a transparent sheet, is excellent in mass productivity and can reduce the time required for manufacturing. . In particular, after laminating large substrates corresponding to a plurality of dials, it is possible to separate them into individual dials, thereby increasing production efficiency and being able to manufacture even small lots at low cost. It has become.

[0013]

FIG. 1 is a cross-sectional view of a timepiece dial according to an embodiment of the present invention in a state of being manufactured, and FIG. 2 is a cross-sectional view of a completed timepiece dial. Reference numeral 2 denotes a substrate formed of paper. The substrate 2 is made of glossy paper having a thickness of about 150 μm, and is made of paper that can be printed by a printer such as an ink jet printer. On the front surface 2a of the substrate 2, a dial surface including an index, a mark, a pattern, and the like is formed by printing.

Reference numerals 4 and 6 denote transparent sheets which are in close contact with the front surface 2a and the back surface 2b of the substrate 2, respectively. The transparent sheets 4 and 6 are made of a transparent plastic sheet such as polyethylene or vinyl chloride and have a thickness of 30 to 150 μm. In the present embodiment, as the most preferable example, the entire surface of the substrate 2 is covered with the transparent sheets 4 and 6 to seal the substrate 2.

In the timepiece dial having the above structure, the substrate 2 made of paper is reinforced and sealed by the transparent sheets 4 and 6. For this reason, even if it is paper, the substrate 2 does not easily bend or break, and the surface is not stained or absorbs moisture, so that it does not bend, warp, or warp, and is easy to handle and store. .

Further, in the case of this timepiece dial, like a metal dial or the like, it is adhered to a front plate or the like of the watch case with an adhesive or a double-sided tape, or when a watch case made of synthetic resin is formed. It is possible to insert it in the plate part.

Depending on the thickness of the paper and the structure for attaching the watch case to the front plate, no further reinforcement may be required if only the tearing or dirt of the watch dial can be prevented. In this case, the transparent sheet 4 may be attached only to the front surface 2a of the substrate 2.

FIG. 3 is an explanatory view showing a step of laminating the substrate 2 with the transparent sheets 4 and 6. The step shown in FIG. 3 shows a hot type laminating step. That is, rolls 8 and 10 for supplying the transparent sheets 4 and 6 are provided on the front side and the back side of the substrate 2, respectively.
6 is drawn out, and the drawn out transparent sheets 4 and 6 are heated and brought into close contact with the substrate 2. On the adhesive surfaces of the transparent sheets 4 and 6,
A transparent adhesive layer that is bonded by heat is provided, and is bonded to the surface of the substrate 2 by heating.

In the case of the cold type laminating step, as shown in FIG. 4, the release paper 14 of the transparent sheet 4 (6) pulled out from the roll 12 is peeled off to expose the transparent adhesive layer. Then, it is attached to the substrate 2 as it is.

In any of the above laminating steps, the substrates 2 may be laminated one by one, or a plurality of substrates 2 connected in the direction in which the transparent sheets 4 and 6 may be attached.
May be laminated in a connected state, and then cut and separated individually. Further, as shown in FIG. 5, after printing a dial surface 2c corresponding to each substrate on a large substrate 20 on which a plurality of substrates 2 can be formed, the transparent sheets 4 and 6 are laminated through the same laminating process as described above. It is also possible to stick and then cut and separate into individual dials.

In order to prevent the substrate 2 from being bent, warped, or distorted, the transparent sheets 4 and 6 are preferably adhered to the front and back surfaces of the substrate 2, respectively.
It is desirable to use sheets of the same material and the same thickness as 6. Accordingly, it is possible to prevent warpage due to expansion and contraction of the transparent sheets 4 and 6.

[0022]

According to the present invention, the strength of a substrate made of paper on which a dial surface can be easily formed by a printer can be increased by bringing a transparent sheet into close contact with the front surface or the front and back surfaces of the substrate. It prevents dirt and tears and can be handled like metal dials.

Further, by laminating and sealing the substrate with a transparent sheet, it is possible to prevent the substrate formed of paper from absorbing moisture and being distorted.

Further, as described above, since warpage and distortion can be prevented, the dial surface can be kept flat,
The contact with the hands can be prevented, and the distance between the hands and the hands can be reduced to reduce the thickness.

Also, as for the manufacturing method, since only a step of laminating the substrate with a transparent sheet is required, the manufacturing does not take much time, the mass production is excellent, and the manufacturing cost is higher than that of a paper dial. Can be minimized, and it can be manufactured at low cost and in a short time. In particular, even in the case of custom-made products and small lot production, it is possible to suppress the increase in cost, to produce the products promptly, and to further enhance the merchantability of custom clocks and the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state during the manufacture of a timepiece dial according to one embodiment of the present invention.

FIG. 2 is a sectional view of the timepiece dial shown in FIG. 1 after completion.

FIG. 3 is an explanatory view showing a state in which a substrate of the timepiece dial shown in FIG. 2 is laminated in a hot type laminating step.

FIG. 4 is an explanatory view showing a state in which the substrate of the timepiece dial shown in FIG.

5 is a perspective view showing a state when the timepiece dial shown in FIG. 2 is manufactured using a large-sized substrate.

[Explanation of symbols]

 2 substrate 2c dial surface 4,6 transparent sheet 8,10,12 roll 20 large substrate

Claims (3)

[Claims] 1. A timepiece dial comprising: a substrate formed of paper having a dial surface printed on a front surface thereof; and a transparent sheet covering the substrate in close contact with the front surface or the front and back surfaces of the substrate. . 2. A timepiece dial manufacturing method, comprising laminating a front surface or a front surface and a back surface of a substrate formed of paper having a dial surface printed on a front surface with a transparent sheet. 3. A step of laminating a front surface or a front surface and a back surface of a large substrate formed of paper on which a plurality of dial surfaces corresponding to a plurality of dials are printed on a front surface with a transparent sheet, and the large substrate together with the transparent sheet. And separating the dial into individual dials.