JPH0710610A - Production of glass article having metallic pattern and transfer sheet to be used therefor - Google Patents

Abstract

PURPOSE:To obtain a process for producing a glass article having various metallic foil patterns by a transfer method in high workability and reproducibility. CONSTITUTION:A resin layer 2 having water and heat resistances is formed on a hydrophilic sheet 1, a printing pattern 3 made of a water-soluble or hot- melt resin is formed on the resin layer 2 and a metallic foil 4 is pasted on the printing pattern 3 to prepare a transfer sheet A. The hydrophilic sheet 1 of the transfer sheet A is wet with water and the metallic foil 4 of the transfer sheet A is brought into contact with the surface of a heated and molten glass 5. The metallic foil 4 is transferred from the hydrophilic sheet 1 having the above resin layer 2 to the glass 5 to obtain glass articles having various metallic patterns.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing glass products having a metallic pattern by a transfer method and a transfer sheet used for the method.

[0002]

2. Description of the Related Art Conventionally, a method of applying a metal pattern to a glass product is to place a metal foil on an iron plate, bring a glass body in a heated and molten state into contact therewith, and bond the metal foil to the surface of the glass body. However, with this method, there is no choice but to cut the metal foil into a certain shape and use it at an appropriate position, and it is difficult to provide a complicated pattern or form a pattern with good reproducibility. there were.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a method capable of providing a complicated metal foil pattern on a glass surface with good workability and reproducibility.

[0004]

The present invention has been developed by developing a special transfer sheet having a hydrophilic sheet as a base material.
The above problem was solved.

That is, in the present invention, a water-resistant and heat-resistant resin layer is formed on a hydrophilic sheet, a printing pattern made of a water-soluble or heat-melting resin is formed on the resin layer, and the printing pattern is formed on the printing pattern. By using the transfer sheet A to which the metal foil is attached, various metal foil patterns can be transferred onto the surface of the glass body with good reproducibility.

[0006] The transfer sheet A has a water-resistant resin layer formed by contacting the surface of a metallic foil pattern with the surface of a glass body in a heat-melted state while the hydrophilic sheet as a base material is wet with water. The metal foil can be transferred from the hydrophilic sheet to the glass body surface.

Here, the hydrophilic sheet means a sheet which can be wetted with water, such as papers and cloths, and it is particularly preferable to use a sheet having a high water absorption property such as Japanese paper, newspaper and cotton cloth.

[0008] Next, the resin layer formed on the hydrophilic sheet is
A polyurethane resin, an acrylic resin, a phenol resin, a melamine resin, a fluororesin, a silicone resin or the like is formed using a water resistant resin so as not to affect the metal foil pattern formed thereon. Further, this resin layer also needs to be heat resistant so as not to be thermally melted or burned by the heat when the metal foil pattern is transferred to the glass body that is heat-melted. However, although the glass body heated and melted at 600 ° C. or higher, for example, 1000 to 2000 ° C. comes into contact with the metal foil, since it is instantaneous, the resin used for the resin layer has a temperature of about 200 to 300 ° C. It can be used as long as it can withstand. The resin is preferably used as a transparent resin liquid containing no additives so that gas or the like is not generated by heating during transfer.

Further, as the water-soluble resin printed on the water-resistant resin layer, carboxymethyl cellulose, gum arabic, starch, polyvinyl alcohol, etc. are generally used as water-soluble sizing agents in the printing industry. Can also be used. Further, a heat-meltable resin that can be melted at the time of transfer and can be peeled off from the transfer sheet A may be printed on the water-resistant resin layer. As this resin, any commercially available hot-melt resin may be used. Applicable.

The printing pattern of the water-soluble resin or the heat-fusible resin may be formed by any of a hand drawing method, a screen printing method, a pattern printing method and a roll printing method. The metal foil applied on this may be any metal foil that forms a metal thin film on the imprint pattern with good conformity. Even if the foil is directly adhered, the metal foil formed by vapor deposition or plating. A thin film may be transferred.

However, in order to form a metal foil pattern having excellent metallic luster on the surface of glass products, the thickness of the metal foil is
The thickness is preferably 3 μm or more, and generally, as the metal foil, it is preferable to use a foil. As the metal foil, gold, silver, platinum, aluminum or the like can be used.

[0012]

EXAMPLES Next, examples of the present invention will be described. Example 1 Japanese paper was used as the hydrophilic sheet 1, and a urethane resin was coated thereon to form a water-resistant and heat-resistant resin layer 2. The resin layer 2 was made of carboxymethyl cellulose and gum arabic. A water-soluble resin composed of a mixture is printed in a pattern with a silk screen to form a printed pattern 3, and a metal foil (gold stamping foil) 4 is placed thereon, and a gold foil corresponding to the printed pattern 3 is formed. A pattern was formed.

The hydrophilic sheet 1 of the transfer sheet A thus obtained was wetted with water, placed on the iron plate 6, the hydrophilic sheet 1 surface was attached, and the glass body 5 blown in the shape of a cup at about 1000 ° C. Was rolled on the transfer sheet A, and the imprint pattern-shaped metal foil 4 was transferred onto the surface of the glass body 5.

At this time, the hydrophilic sheet 1 moistened with water is
In the state where the metal foil 4 is stably attached to the iron plate 6, peeling occurs between the resin layer 2 and the printing pattern 3 made of a water-soluble resin, and the metal foil 4 is efficiently and completely transferred onto the surface of the glass body 5. , Then the water-soluble resin was burned off. As a result, a glass cup having a beautiful gold foil pattern on the surface could be obtained with good reproducibility and stability.

Example 2 The same method as in Example 1 was carried out except that the imprint pattern 3 was formed from a commercially available hot melt resin (ethylene / vinyl acetate copolymer). As a result, a glass cup having a beautiful gold foil pattern on the surface could be obtained as in Example 1.

Example 3 The bottom surface of a glass (600 ° C.) of molded pyret glass was lightly contacted with the surface of the transfer sheet A of Example 1 in which the hydrophilic sheet 1 was wetted with water, and the metal foil 4 was placed on the glass. After transferring to the bottom surface, molten glass was connected to the bottom surface of the glass to obtain a wine glass with legs. This product became a very noble wine glass with a gold leaf pattern on the bottom of the glass.

[0017]

EFFECTS OF THE INVENTION The transfer sheet A can be used by wetting a hydrophilic sheet with water to easily and accurately transfer the pattern of the metal foil formed thereon onto the surface of the glass body in a molten state. Therefore, in the method of the present invention using this,
Good workability of glass products with any metal foil pattern,
It can be mass-produced.

[Brief description of drawings]

FIG. 1 is an enlarged side view of a main part showing an example of a manufacturing method of the present invention.

2 is a perspective view of the method of FIG. 1. FIG.

3 is a perspective view of a product obtained by the method of FIG.

[Explanation of symbols]

 1 hydrophilic sheet 2 resin layer 3 imprint pattern 4 metal foil 5 glass body 6 iron plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Yokoshima 548-2 Komano-cho, Nakamachi-dori Marutamachi, Kamigyo-ku, Kyoto-shi, Kyoto

Claims (2)

[Claims] 1. A water-resistant and heat-resistant resin layer 2 is formed on a hydrophilic sheet 1, a printing pattern 3 made of a water-soluble or heat-melting resin is formed on the resin layer 2, and the printing pattern 3 is formed on the printing pattern 3. Metal foil 4
Is prepared, and the surface of the glass body 5 in a heating and melting state is covered with the metal foil 4 of the transfer sheet A while the hydrophilic sheet 1 is wet with water.
And a metal foil 4 is transferred from the hydrophilic sheet 1 having the resin layer 2 to the glass body 5, and a method for producing a glass product having a metal pattern. 2. A water-resistant and heat-resistant resin layer 2 is formed on a hydrophilic sheet 1, a printed pattern 3 made of a water-soluble or heat-meltable resin is formed thereon, and the printed pattern 3 is formed. Metal foil 4
A transfer sheet for providing a metal foil pattern on a glass product, which is characterized by being attached.