JPH08282082A - Silk screen printed glass decorative object - Google Patents

Abstract

PURPOSE: To provide a glass decorative object having elegant and graceful translucent metal patterns not obtained in a conventional glass decorative object by silk screen printing. CONSTITUTION: Silk screen printing is applied to the surface of glass using a colloidal inorg. composite particle emulsion and a transparent resin is applied to the printed surface or a compsn. prepared by mixing fine metal particles or fine particles wherein other metal is vapor-deposited on fine metal particles with an emulsion is applied thereto by silk screen printing and metal vapor deposition is applied to the printed surface to form a mirror surface to obtain a glass decorative object.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention uses, for example, a partition (partition) as an interior ornament, a tile-like ornament on a wall as an exterior ornament, and the like.
The present invention relates to a silk-screen printed glass ornament having various uses.

[0002]

2. Description of the Related Art When glass is used as a decoration, a transparent plate is often decorated. As a processing means therefor, the surface is ground by sandblasting or sandpaper using a masking plate on which a pattern is physically formed, or chemically, the glass surface is dissolved by hydrofluoric acid.

The processing of the glass surface by these means generally makes the glass surface a rough surface and forms a monotonous pattern. Therefore, it is undeniable that the obtained decorative effect lacks a high-class feeling. In addition, coloring had to be done by applying a separate coating. Therefore, the present inventor has studied the formation of patterns and characters on the glass surface by silk screen printing to enhance the decorative effect.
89109, JP 3-52672 A, JP 4-216092 A, JP
Japanese Patent Application No. 6-117067 and Japanese Patent Application No. 6-165154 propose that various decorative glasses and mirror surfaces are formed by directly printing on the glass surface.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a further development of these techniques previously proposed by the present inventor, whereby a semi-transparent pattern, that is, a transparent state, which cannot be obtained in the conventional glass decorative body by silk screen printing. However, it is intended to provide a glass ornament which is not transparent and has an elegant and elegant metallic pattern.

[0005]

The silk-screen printed glass ornament of the present invention is silk-screen printed on the glass surface with a colloidal inorganic composite particle emulsion, and has a highly transparent transparent surface. It is formed by coating a resin.

Further, metal fine particles or fine particles obtained by vapor-depositing other metal on metal fine particles are mixed in an emulsion of colloidal inorganic composite particles on the glass surface, and silk screen printing is performed using this liquid, and the printing surface side It is a glass decoration body obtained by applying a metal vapor deposition to a mirror surface.

The colloidal inorganic composite particle emulsion referred to herein is an emulsion of inorganic fine particles such as silicon dioxide, calcium oxide, aluminum oxide and titanium oxide, which are kept in a suspended state together with a polymeric substance as an emulsifier. Inorganic particles have a particle size of a few m, which is difficult to obtain by physical pulverization.
The particles are in the order of μ to several tens of μm and can be obtained by a conventionally known means such as decomposition of an inorganic compound. For example, silicon dioxide becomes colloidal silica, that is, colloidal silicic acid, by adding silicon tetrahalide in water or gradually adding concentrated hydrochloric acid to an aqueous solution of alkali silicate.

Examples of the polymer substance that forms a complex particle emulsion with these colloids include, for example, an acrylic polymer obtained by emulsion polymerization of acrylic acid ester or methacrylic acid ester using polyvinyl alcohol having a polymerization degree of 1500 or less as an emulsifier. Examples thereof include emulsions and aqueous emulsions obtained by emulsion-polymerizing vinyl silane, an acrylic monomer, and optionally a copolymerizable monomer with a polymerizable emulsifier or an anionic emulsifier. These form a complex emulsion with colloidal inorganic particles.

The transparent resin coated on the printing surface side protects the dry coating film of the colloidal inorganic composite particle emulsion, and may have a higher level than this coating film. Particularly preferred are those having good transparency, and examples thereof include synthetic resins such as polymethyl methacrylate, polybutylene terephthalate, acrylonitrile-butadiene-styrene copolymer, polyacetal, polycarbonate, modified polyphenylene ether, and polyarylate. be able to. Those soluble in a solvent are applied as a solution, and those easily reaching the melting point are applied in a molten state.

Gold or silver is preferable because the metal fine particles mixed in the emulsion of colloidal inorganic composite particles are to enhance the decorative effect due to the metallic luster. For metals that are malleable like gold and difficult to make into fine powder,
Known fine particles obtained by vapor-depositing gold on fine metal particles such as silver may be used.

[0011]

[Function] By performing silk screen printing on the glass surface using the colloidal inorganic composite particle emulsion, a semi-transparent pattern, which has not been achieved in the past, due to the dry film of the colloidal inorganic composite particle emulsion,
It is possible to obtain a glass ornament with an elegant and elegant pattern of a transparent portion which is almost transparent but not transparent. The dry film of the colloidal inorganic composite particle emulsion has good adhesion to glass, particularly when the colloidal silica composite particle emulsion is used. The coating of the highly rigid transparent resin protects the dry film of the colloidal inorganic composite particle emulsion from scratches and the like.

Further, metal fine particles or fine particles obtained by vapor-depositing other metal on metal fine particles are mixed in the colloidal inorganic composite particle emulsion on the glass surface, and silk screen printing is performed using this liquid, and the printed surface side is printed. When metal deposition is applied to form a mirror surface, the colloidal inorganic composite particle emulsion film has heat resistance, so it withstands the high temperatures of 150 to 160 ° C during metal deposition, and the gloss of the metal contained inside It is a mirror-finished glass decorative body that holds good.

[0013]

【Example】

Example 1 A colloidal silica composite particle emulsion was printed as a printing ink on a 3 mm-thick plate glass whose surface was cleaned using a stencil screen prepared by photolithography in which a photosensitive resin was laminated on the screen. The colloidal silica composite particle emulsion used here is 55 parts by weight of butyl acrylate, 50 parts by weight of methyl methacrylate, 7 parts by weight of vinyltrimethoxysilane in the presence of 2.5 parts by weight of sodium salt of alkylallyl sulfosuccinate. Emulsion obtained by emulsion polymerization of mixed monomer consisting of
A translucent ink was prepared by adding 6500 parts of an aqueous solution of colloidal silica (solid content 35%) having a particle diameter of 10 to 20 mμ to 100 parts by weight. After silk screen printing using this as an ink, the glass plate was dried in a dryer at 120 ° C. for 2 hours, and then a solution of a polymethylmethacrylate resin was applied to the back surface of the glass plate to dry it.

As a result, an elegant and elegant glass ornament having a pattern in which a semitransparent portion which is almost transparent due to the film of the colloidal silica composite particle emulsion and a transparent portion which does not have the film are woven was obtained. 1.2x this glass ornament
With a 2.4m size, we were able to form an elegant partition that had never been seen before. Table 1 shows the results of measurement of heat resistance, adhesion to glass, and water resistance when the ink becomes a coating film after drying.

Example 2 In place of the colloidal silica of Example 1, 7,000 parts of colloidal aluminum (solid content 30%) was used, except that the ink was similarly prepared under the same conditions, and the silk screen was used as the ink. After printing, the glass plate was dried in a dryer at 120 ° C. for 2 hours, and then the back surface was coated with a solution of a polymethylmethacrylate resin and dried to finish. As a result, an elegant and elegant glass ornament was obtained.

Example 3 In place of the vinyltrimethoxysilane of Example 1, γ-methacrylooxypropyltrimethoxysilane was used, except that an ink was similarly prepared under the same conditions, and this was used as an ink. After the silk screen printing described above, the glass plate was dried in a dryer at 120 ° C. for 2 hours, and then the back surface was coated with a solution of a polyacetal resin and dried to finish. As a result, an elegant glass ornament was obtained.

Example 4 The ink used in Example 1 was coated with gold on silver.
5% of 50μ gold particles were mixed. Using this ink, silk screen printing was performed on the glass surface with a stencil screen created by a film cutting method. After this was dried, copper vapor deposition was performed using a vapor deposition device.

As a result, the silk screen-printed portion becomes a gold color which is diffusely reflected by the coating containing gold particles in the colloidal silica composite particle emulsion, and the other non-printed portion becomes a mirror surface due to copper vapor deposition. It was possible to form a tile having excellent decorativeness.

Comparative Example 1 The emulsion obtained by emulsion-polymerizing the mixed monomers in Example 1 was adjusted to an ink containing no colloidal silica and subjected to silk screen printing, and then a solution of polymethylmethacrylate resin was similarly added. The coating was dried and finished.

In this example, the silk-screen printed surface was nearly transparent, and the difference between the non-printed transparent portion and the printed portion was unclear.

Comparative Example 2 A transparent resin having no polymethylmethacrylate resin on the back surface in Example 1 was prepared. This caused a problem that the dry film of the colloidal silica composite particle emulsion on the back surface was easily scratched.

Comparative Example 3 An ink was prepared in the same manner except that the ethylene-vinyl acetate copolymer was used as the polymer component in the colloidal silica composite particle emulsion of Example 4, and silk screen printing was performed using the ink. . After drying, copper vapor deposition was performed using a vapor deposition device. This was because the dry film of the colloidal silica composite particle emulsion on the back surface was thermally decomposed during copper deposition and did not form a good mirror surface.

Table 1 shows the results of a comparative test of the properties of the coating films on the silk-screen printed glass of Examples 1 to 4 and Comparative Examples 1 to 3 above.

[0024]

[Table 1]

[0025]

EFFECTS OF THE INVENTION By the silk screen printing method which is easy to work, it is possible to provide a glass ornament which has various uses such as a partition as an interior ornament and a tile-like ornament on a wall as an exterior ornament. did.

Claims (2)

[Claims] 1. A glass ornament for silk screen printing, which comprises performing silk screen printing on a glass surface using a colloidal inorganic composite particle emulsion and coating the surface of the glass with a transparent resin. 2. A colloidal inorganic composite particle emulsion is mixed with fine metal particles or fine particles obtained by vapor-depositing another metal on the fine metal particles on a glass surface, and silk screen printing is performed using this liquid, and the printing surface side A glass ornament that is formed by applying metal vapor deposition to a mirror surface.