JPH0592693A - Thin precious metal composite plate and its manufacture and thin precious metal composite plate with pictorial characters - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a thin precious metal composite plate and a manufacturing method thereof, which can increase the profound feeling and prevent wrinkles and breakage. [Constitution] Thin plate 1 made of precious metal or alloy of precious metal
Is rolled with a rotating roll 2 having an uneven pattern on the peripheral surface, or is sandwiched between plate bodies having an uneven pattern on the surface and rolled or pressed to transfer the uneven pattern to the surface to form a thin plate with a pattern. 3 is manufactured, and this patterned thin plate 3 is covered with a transparent protective film 3a. [Effect] Since the uneven pattern 1a is formed on the surface of the thin plate 1, the feeling of solidness is increased and the decorativeness is improved compared to the flat thin plate, and the uneven pattern is formed by rolling the rotary roll 2 on the surface of the thin plate 1. Since the pattern 1a is formed, the uneven pattern 1a can be easily and continuously formed, and there is almost no breakage or wrinkles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is a thin precious metal composite mainly composed of precious metals such as gold, silver and platinum, which can be easily used as souvenirs and gifts and has a decorative value. Plates and thin-walled precious metal composite plates with pictograms.

[0002]

2. Description of the Related Art Heretofore, a small gold ingot has been given a pattern on its surface by imprinting it with a mold as seen in coins and medals. By the way, in recent years, gold has become popular, and the handling unit of gold has become smaller, and the gold has been bought and sold in units of 1 g. However, such a small amount of gold pressed into a coin or medal with a certain thickness does not look good because it is so small in shape that it is not very effective as a souvenir or gift. was there.

Therefore, for example, a gold ingot is rolled into a thin plate shape (for example, if 1 g of gold is extended to a thickness of 15 μm, it becomes a size of a business card), and this thin plate is covered with a protective film made of a transparent resin. At the same time, if a pattern or a character suitable for the purpose is printed on the surface of the protective film, it can be used as a card-shaped souvenir or a gift.

[0004]

By the way, in the above card-shaped object, by applying pictograms on the surface of the protective film,
Its decorativeness can be enhanced, but it is not very solid because it only draws pictograms on a flat surface. Also, if the surface of the gold thin plate is provided with a concavo-convex pattern using a punch or the like, it is possible to increase the solid feeling, but in this case, the thin plate is very thin (2
Since it is 0 μm or less), there is a problem that wrinkles or breakage easily occur in the thin plate.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a thin precious metal composite plate capable of increasing a solid feeling and preventing wrinkles and breakage, a manufacturing method thereof, and a pictogram. It is intended to provide a thin precious metal composite plate.

[0006]

In order to achieve the above-mentioned object, a thin precious metal composite plate according to claim 1 of the present invention covers a patterned thin plate having an uneven pattern formed on the surface and the patterned thin plate. It is composed of a transparent protective film. The method for producing a thin noble metal composite plate according to claim 2, wherein a thin plate made of a noble metal or an alloy of noble metal is rolled by a rotating roll having an uneven pattern on its peripheral surface, or a plate having an uneven pattern on its surface. It is sandwiched between and rolled or pressed to transfer an uneven pattern to the surface to produce a patterned thin plate, and the patterned thin plate is covered with a transparent protective film.

According to the thin precious metal composite plate of claim 3, a transparent protective film is adhered to at least one surface of a thin plate made of a precious metal or an alloy of precious metals, and an uneven pattern is formed on the surface. It is composed of a transparent protective film for coating. The method for producing a thin noble metal composite plate according to claim 4, wherein a substrate having a transparent protective film adhered to at least one surface of a thin plate made of a noble metal or an alloy of noble metal is a rotating roll having an uneven pattern on its peripheral surface. To produce a patterned substrate by rolling or pressing with a plate having an irregular pattern on the surface and rolling or pressing to transfer the irregular pattern to the surface. Is to be covered with.

The thin precious metal composite plate with pictograms according to claim 5 is a transparent decoration in which the thin precious metal composite plate according to claim 1 or 3 and the thin precious metal composite plate are overlapped with a partially opaque pictogram. And a protective film integrally covering the thin precious metal composite plate and the transparent decorative plate.

[0009]

According to the present invention, since the uneven surface is formed on the surface of the thin plate, the feeling of solidness is increased as compared with the flat thin plate, and the decorativeness as a thin precious metal composite plate is improved.
Since this uneven pattern is formed by rolling a rotary roll, the uneven pattern can be formed easily and continuously, and there is almost no occurrence of damage or wrinkles, and even a long strip-shaped thin plate can be easily uneven. A pattern can be formed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, a lump material of gold having a purity of 99.99% or more is repeatedly rolled to finish it to a thickness of 15 μm, and cut into a business card size to obtain a thin gold plate 1 having a weight of about 1 g. Next, as shown in FIG. 1, the thin plate 1 is inserted between a pair of rotating rolls 2 and 2 having an uneven pattern on its peripheral surface and slightly rolled to form an uneven pattern 1a on the surface of the thin plate 1. Transcribe. The rotating roll 2 is formed by removably winding a film 2b having an uneven pattern on the peripheral surface of a cylindrical roll body 2a.
By exchanging the film 2b with another film, the uneven pattern 1a transferred to the surface of the thin plate 1 can be changed. The film 2b having an uneven pattern may be wound around both roll bodies 2a, 2a, or may be wound around one roll body 2a. Also, film 2
An uneven pattern may be formed directly on the roll body 2a without using b.

Next, as shown in FIG. 2, the patterned thin plate 3 formed as described above is covered with a transparent protective film 3a to obtain a thin precious metal composite plate 4. The protective film 3a has a four-layer structure, and from the inside,
Ionomer resin (Surlyn resin: trade name) layer (thickness: 30
μm), a polyethylene resin layer (thickness: 20 μm), a polyester resin layer (thickness: 100 μm) and a hard coat layer made of a resin having a surface hardness higher than those of 4H.
(Thickness: 15 μm). The protective film 3a is adhered to both surfaces of the thin plate 1 by heating and pressure bonding at 120 ° C.

As shown in FIG. 3, a pictogram 5 is drawn on the surface of the protective film 3a on the upper surface side of the thin precious metal composite plate 4. This pictogram 5 is a background image to be a pictogram printed on the surface of the protective film 3a, and a desired pictogram is drawn according to the application of the precious metal card or the like. In addition to the printing, the pictogram 5 includes an appropriate method such as coating of a paint, relief engraving, etching, a method combining these methods, and a method using a copy machine.
By virtue of thermal copying, laser copying, photographic copying, etc., clear color copying can be easily performed based on an arbitrary original plate. The opaque portion may be the portion of the pictogram 5 or the background portion of the pictogram. The emoji part may be cut out to expose the precious metal in that part. In addition, the surface of the protective film 3a on the lower surface side of the thin precious metal composite plate 4 has a structure shown in FIG.
As shown in FIG. 6, the guarantee character 6 including the grade and quantity of gold is printed by using the same method as the pictogram.

According to the thin precious metal composite plate 4, the thin plate 1
Since the concave-convex pattern 1a is formed on the surface of the, the feeling of solidity is increased as compared with a flat thin plate, and the decorativeness as a thin precious metal composite plate is improved. Further, since the concavo-convex pattern 1a formed on the surface of the thin plate 1 is located inside the pictogram 5 drawn on the surface of the protective film 3a, the concavo-convex pattern and the pictogram 5 give a sense of perspective and the decorativeness is further improved. .. Further, according to the method for manufacturing a thin precious metal composite plate described above, since the uneven pattern 1a is formed on the surface of the thin plate 1 by rolling the rotary rolls 2 and 2, it is possible to easily and continuously form the uneven pattern 1a. Therefore, the thin plate 1 is hardly damaged or wrinkled, and the uneven pattern 1a can be easily formed on the long strip-shaped thin plate 1.

In the above embodiment, the rotating rolls 2 and 2 were used as the means for forming the uneven pattern 1a on the surface of the thin plate 1. However, the thin plate 1 is sandwiched between the plate bodies having the uneven pattern on the surface. An uneven pattern may be formed 1a on the surface of the thin plate 1 by rolling or pressing.

Next, another embodiment will be described. First,
As shown in FIG. 5, a thin plate 1 obtained by the same method as described above
The substrate 10 is obtained by adhering the transparent protective films 8, 8 to the front and back surfaces of the substrate. By doing so, the thin plate 1 is reinforced and the handling from the next step becomes easy.

Next, the substrate 10 is inserted between the rotating rolls 2 and 2 and slightly rolled to transfer the uneven pattern 1a onto the surface of the substrate 10 as shown in FIG. In this case, the concavo-convex pattern 1 is simultaneously formed on the surfaces of the protective film 8 and the thin plate 1.
Although a is formed, since the protective film 8 is in close contact with the thin plate 1, there is an advantage that the thin plate 1 is less likely to be damaged as compared with the above embodiment.

Then, by covering the patterned thin plate 11 formed as described above with the transparent protective film 3a, a thin precious metal composite plate 12 is obtained. In this embodiment, it is of course possible to obtain the same effect as the above embodiment. Also in the above embodiment, instead of the rotating rolls 2 and 2 as means for forming the uneven pattern 1a on the surface of the substrate 10, the substrate 10 is sandwiched by plate bodies having the uneven pattern on the surface and rolled or pressed. The substrate 10
You may make it form the uneven | corrugated pattern 1a on the surface.

Next, the thin precious metal composite plate with pictograms which has the thin precious metal composite plate 4 of the above embodiment as a constituent element will be described. This thin precious metal composite plate 15 with a pictogram is a transparent decorative plate (thickness: 0.1 mm, in which a partially opaque pictogram 5 is provided on the surface of the thin precious metal composite plate 4 on which the pictogram 5 and the guarantee letter 6 are not printed. ) 16, a transparent decorative plate 17 with the guarantee character 6 is superposed on the back surface, and these are covered with a transparent protective film 18.

As shown in FIGS. 9 and 10, the transparent decorative plates 16 and 17 are made of a transparent polyester resin film on which pictograms 5, guarantee letters 6 and the like are printed.
It has the same shape as the thin precious metal composite plate 4. In addition,
The above-mentioned pictograms 5 and guaranteed letters 6 include not only printing but also an appropriate method such as coating of paint, relief engraving, etching, and a method combining these, and further, a method using a copy machine. Thermal copying, laser copying, photographic method According to the copy, etc., a clear color copy can be easily performed based on an arbitrary original plate. The opaque portion may be the portion of the pictogram 5 or the background portion of the pictogram. The emoji part may be cut out to expose the precious metal in that part. The content of the pictogram 5 displayed on the transparent decorative plate 16 is not particularly limited, but, for example, it may be a memorial of an event, reproduction of a famous painting or design, and in the case of a wedding present. Shows a fixed pictogram other than a pictogram different for each product, such as the name of the bride and groom, and the guarantee character 6 displayed on the transparent decorative plate 17 is also uniformly displayed as a fixed character. .. In addition, the protective film 18
Is 0.1 mm thick with a hard coat (5H) on the surface
Since it is made of the polyester resin film, it is possible to prevent scratches and the like from occurring during handling.

According to the above-mentioned thin precious metal composite plate 15 with pictograms, since the uneven pattern 1a is formed on the thin plate 1 of the thin precious metal composite plate 4 which is the main part of the constituent elements, the feeling of solidness is of course increased. On the thin precious metal composite plate 4, the transparent decorative plates 16 and 17 in which the fixed character pictogram 5 and the guaranteed character 6 are uniformly applied are overlapped, and the whole is covered with the protective film 18 to be integrated. Since it is a product, it can be manufactured immediately after receiving an order from the user,
It can fully meet the user's request for immediate acquisition, and
Since the whole is covered with the protective film 18, there is an advantage that it is possible to prevent the adhesion of dirt and the like and the generation of scratches and the like, and to maintain the decorative and property values for a long time.

Although the thin precious metal composite plate 4 is used as a constituent element of the thin precious metal composite plate 15 with pictograms in the above embodiment, the thin precious metal composite plate 12 may be used instead. Further, in each of the above-mentioned embodiments, an example in which the present invention is applied to a card-shaped card of a business card size has been described. May be applied to
Further, it may be applied to a decorative object such as a cufflink or a tie pin, or may be applied to a thin plate-like member having a relatively small area which is detachably attached.

[0022]

As explained above, according to the thin precious metal composite plate of the present invention, since the uneven pattern is formed on the surface of the thin plate of the precious metal, the feeling of solidness is increased as compared with the flat thin plate, and the thin precious metal plate is formed. The decorativeness as a composite board is improved, and also
Since the concavo-convex pattern is formed on the surface of the thin plate by rolling the rotary roll, the concavo-convex pattern can be easily and continuously formed, and there is almost no occurrence of breakage or wrinkles, and a long strip-like shape. An uneven pattern can be easily formed on a thin plate.

According to the thin precious metal composite plate with pictograms, since the thin plate of the thin precious metal composite plate, which is a main part of the constituent elements of the thin precious metal composite plate, is provided with an uneven pattern, the solid feeling is naturally increased. The thin precious metal composite plate is overlaid with a transparent decorative plate in which fixed characters such as pictograms and guaranteed characters are standardized, and the whole is covered with a protective film so that it is integrated. Can be manufactured immediately after receiving the order, and it can fully meet the user's request for immediate acquisition. Also, since the whole is covered with a protective film, adhesion of dirt etc. and scratches etc. occur There is an advantage in that the decorative and property values can be maintained over a long period of time by preventing the above.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state where an uneven pattern is formed on a thin plate by a rotating roll.

FIG. 2 is a sectional view of a thin precious metal composite plate.

FIG. 3 is a plan view of a thin precious metal composite plate.

FIG. 4 is a bottom view of the thin precious metal composite plate.

FIG. 5 is a sectional view of a substrate.

FIG. 6 is a cross-sectional view of a patterned substrate.

FIG. 7 is a cross-sectional view of a thin precious metal composite plate.

FIG. 8 is a cross-sectional view of a thin precious metal composite plate with pictograms.

FIG. 9 is a plan view of a transparent decorative plate.

FIG. 10 is a plan view of a transparent decorative plate.

[Explanation of symbols]

 1 Thin Plate 2 Rotating Roll 3 Patterned Thin Plate 3a Protective Film 4 Thin Precious Metal Composite Plate 8 Protective Film 10 Substrate 11 Patterned Substrate 12 Thin Precious Metal Composite Plate 15 Thin Precious Metal Composite Plate with Pictograms 16, 17 Transparent Decorative Plate 18 Protective Film

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minoru Nakazato 1-297 Kitabukuro-cho, Omiya-shi, Saitama Prefecture 297 Mitsubishi Materials Corporation Product Development Center (72) Yosuke Orikasa 1-297 Kitabukuro-cho, Omiya-shi, Saitama Mitsubishi Material Co., Ltd. Product Development Center

Claims (5)

[Claims] 1. A thin noble metal composite plate comprising a patterned precious metal thin plate having an uneven pattern formed on its surface and a transparent protective film covering the patterned precious metal thin plate. 2. A thin plate made of a noble metal or an alloy of a noble metal is rolled by a rotating roll having an uneven surface on the peripheral surface, or is sandwiched between plate bodies having an uneven surface and rolled or pressed. A method for producing a thin precious metal composite plate, which comprises producing a patterned thin plate by transferring an uneven pattern on the surface, and coating the patterned thin plate with a transparent protective film. 3. A substrate having a transparent protective film adhered to at least one surface of a thin plate made of a noble metal or an alloy of noble metal and having an uneven pattern formed on the surface, and a transparent protective film covering the substrate. A thin precious metal composite plate characterized by being composed of. 4. A substrate having a transparent protective film adhered to at least one surface of a thin plate made of a noble metal or an alloy of noble metals is rolled by a rotating roll having a concavo-convex pattern on its peripheral surface, or is rolled on the surface. It is characterized in that it is sandwiched between plate bodies having an uneven pattern and rolled or pressed to produce a patterned substrate by transferring the uneven pattern on the surface, and the patterned substrate is covered with a transparent protective film. Method for manufacturing thin precious metal composite plate. 5. The thin precious metal composite plate according to claim 1 or 3, a transparent decorative plate which is superposed on the thin precious metal composite plate and is provided with a partially opaque pictogram, and the thin precious metal composite plate and transparent. A thin precious metal composite plate with a pictogram, which is composed of a protective film integrally covering a decorative plate.