JPH08157239A - Sandwich glass - Google Patents

Abstract

PURPOSE: To obtain sandwich glass having excellent safety, visibility, design characteristic, etc., by arranging synthetic resin adhesives having an adhesive function on both sides of patterned films and laminating and bonding glass plates on both sides of this adhesive layer. CONSTITUTION: The surface of a plastic film of a polycarbonate system, etc., having a softening temp. of about >=100 deg.C is printed with ink e.g.; chlorinated vinyl acetate based ink) is prescribed patterns by offset printing, by which the patterned film 3 having the pattern layer 4 is formed. The synthetic resin adhesives 5, 5 (e.g.; ethylene-vinyl acetate copolymer layers) having the adhesive function are then arranged on both sides of the patterned film 3. Further, the glass plates 1 and 2 are laminated and bonded on both sides of the synthetic resin adhesives 5, 5, by which the sandwich glass 7 is produced. At least one layer of UV cutting intermediate layers made of synthetic resins having a UV cutting function are preferably used as the synthetic resin adhesive layers 5 in order to impart the UV cutting function to the sandwich glass 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to laminated glass used for buildings and the like.

[0002]

2. Description of the Related Art Conventionally, a polyethylene terephthalate film (hereinafter also referred to as a PET film), which has been subjected to gravure printing or silk screen printing, is sandwiched inside a laminated glass to adjust the light diffusivity and transmittance. And the designability has been improved.

Further, a laminated glass using an interlayer film for laminated glass in which an ink is transferred to a polyvinyl butyral film (Japanese Patent Laid-Open No. 50-65584) or a glass plate is sequentially provided with a primer layer, a transfer layer and a cured resin layer. The formed decorative glass plate (Japanese Utility Model Publication No. 1-80418) is known.

However, the conventional techniques have different disadvantages. That is, in the case of gravure printing, the printing plate is expensive, and it is necessary that the lot, which is the production quantity of one production unit, is large, and the needs for high-mix low-volume production cannot be met. In addition, the silk screen printing is inferior in printing accuracy to the gravure printing and the offset printing, and it is difficult to make a delicate expression.

Further, the method for producing a laminated glass by using the transfer method described in Japanese Patent Laid-Open No. 65584/1975 has many steps, and the laminated glass described in Japanese Utility Model Laid-Open No. 1-80814 is also used. In the method not using, not only the number of steps was large, but also the protection against the printed film was insufficient.
On the other hand, offset printing has the advantages that the plate is inexpensive and can be used for small-lot production sufficiently, and that high-precision printing can be performed, but since it has poor light resistance, it is used in the construction materials field. It didn't come.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art,
The problem of the lot size, the price of the plate, the printing accuracy, and the light resistance as in the conventional method is solved, and the visibility is adjusted and the light is adjusted, and the design is improved, and It is intended to newly provide laminated glass that can be used for various purposes.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and at least one pattern formed by forming a pattern layer in which ink is printed in a predetermined pattern by offset printing. Disclosed is a laminated glass characterized in that a synthetic resin adhesive layer having an adhesive function is disposed on both sides of an attached film, and glass plates are laminated and adhered on both sides of the synthetic resin adhesive layer. In order to give the laminated glass an ultraviolet ray cutting function, it is preferable to use a synthetic resin ultraviolet ray cutting intermediate layer having an ultraviolet ray cutting function for at least one synthetic resin intermediate layer.

Offset inks used in the present invention include vinyl chloride-based inks and fluorine-based inks.
Other various offset inks can be used.

Further, as the synthetic resin adhesive layer and the synthetic resin ultraviolet ray blocking intermediate layer, a thermoplastic resin, a thermosetting resin, a light-curable curable resin, or the like can be used. For example, ethylene vinyl acetate, polyvinyl butyral, polyvinyl chloride, an acrylic photopolymerization prepolymer, an acrylic catalyst polymerization prepolymer, and an acrylic acid ester / vinyl acetate photopolymerization prepolymer can be used.

In the case where a glass plate and a patterned film are laminated and bonded and integrated by superheat compression bonding using a thermoplastic resin in an autoclave, the patterned resin having a softening temperature higher than that of the synthetic resin intermediate layer is used. It is preferable to use a film because the patterned film is not thermally deformed and the shape of the pattern is stable.

As the glass plate, in addition to the glass plate obtained by the float method, tempered glass, heat ray absorbing glass, heat ray reflecting glass, template glass having irregularities on the surface, frosted glass and the like can be used. Further, the laminated glass of the present invention can be used to form a multilayer glass.

The laminated glass of the present invention can be widely applied to applications such as architectural openings, partitions, equipments, and transportation equipments.

[0013]

In the laminated glass of the present invention, at least one patterned film having ink adhered to the surface by offset printing is used as an intermediate layer, so that visibility adjustment, light control and decorative effects can be obtained. . Further, the laminated glass of the present invention is not only excellent in functionality and designability,
It can be manufactured at low cost and has good workability.

[0014]

FIG. 1 is a cross-sectional view of a laminated glass of the present invention, wherein 1 and 2 are glass plates constituting both outer surfaces of the laminated glass, and 5 and 5 are disposed inside the glass plate, and have an adhesive function. A synthetic resin UV-cutting intermediate layer made of ethylene vinyl acetate copolymer having
Indicates a patterned film made of polycarbonate having a pattern layer 4 sandwiched by synthetic resin ultraviolet blocking intermediate layers 5 and 5.

Glass plates 1, 2 and patterned film 3
Are laminated and bonded and integrated through the intermediate layers 5 and 5 made of synthetic resin. As the patterned film 3, a film in which a pattern layer 4 is formed by printing an ink in a predetermined pattern by offset printing on a surface of a polycarbonate or polyimide plastic film having a softening temperature of 100 ° C. or higher is used. There is.

The pattern layer 4 is formed with a desired pattern so that desired visibility adjustment, light control, or desired designability can be obtained.

FIG. 2 is also a sectional view of the laminated glass of the present invention. In this embodiment, unlike the embodiment shown in FIG. 1,
Offset layer with ink is applied on the surface and pattern layer 4
The patterned film 3 made of polycarbonate, which has been formed, is formed on the pattern layer 4 side by a synthetic resin intermediate layer 6 having no ultraviolet ray blocking function and on the back side of the pattern layer 4 by a synthetic resin layer having an ultraviolet ray blocking function. It is sandwiched with the ultraviolet-cutting intermediate layer 5.

FIG. 3 is also a sectional view of the laminated glass of the present invention. In this embodiment, unlike the embodiment shown in FIG. 1,
Offset layer with ink is applied on the surface and pattern layer 4
A patterned film 3 made of polycarbonate, on which the synthetic resin ultraviolet cut intermediate layer 5 having an ultraviolet cut function on the pattern layer 4 side and the back surface side of the pattern layer 4 are formed.
It is sandwiched by the synthetic resin intermediate layer 6 having no ultraviolet ray blocking function.

[0019]

According to the present invention, since laminated glass is used, the safety is further improved, and a film layer having an ink attached by offset printing is added to the inner layer portion of the intermediate film. Therefore, the visibility, dimmability, and designability are improved. Therefore, according to the present invention, it is possible to supply a laminated glass having a safe and visual function and a high design property.

[Brief description of drawings]

FIG. 1 is a sectional view of a laminated glass of the present invention.

FIG. 2 is a sectional view of a laminated glass of the present invention.

FIG. 3 is a sectional view of the laminated glass of the present invention.

[Explanation of symbols]

 1, 2: Glass plate 3: Patterned film 4: Pattern layer 5: Synthetic resin UV cut intermediate layer 6: Synthetic resin intermediate layer 7: Laminated glass

Claims (1)

[Claims] 1. A synthetic resin adhesive layer having an adhesive function is disposed on both sides of at least one patterned film having a pattern layer formed by printing ink in a predetermined pattern by offset printing. A laminated glass comprising glass plates laminated and adhered on both sides of an adhesive layer.