JPH10287452A - Luminescent laminated glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a laminated glass resistant to moisture, water and light, easily usable in life space and business space, by putting a pattern bonded through adhesive film(s) and formed out of a coloring material emitting visible rays by UV irradiation, in between plural glass plates so as to enable a fantastic pattern to be expressed efficiently without requiring much labor. SOLUTION: A pattern 2 bonded through adhesive film(s) 3 of pref. modified ethylene-vinyl acetate copolymer hydrolyzate and formed out of a coloring material, i.e., an inorganic fluorescent substance, emitting visible rays by UV irradiation with wavelengths of pref. 300-400 nm, is put in between plural glass plates 1 made of e.g. soda-lime glass. Preferably, this laminated glass is constructed by laminating the glass plates 1, via adhesive films 2, with both sides of a sheet-like material such as film or paper, pref. polyester film 4, bearing the pattern 2 formed as mentioned above on the surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a partition, a door, a wall,
The present invention relates to a laminated glass that can be used as a window and can display a fantastic pattern.

[0002]

2. Description of the Related Art Conventionally, a fantastic pattern is expressed by illuminating a transparent or translucent object with light from behind, illuminating the patterned light with an object, or illuminating a pattern with a luminous object. I was attaching it.

[0003]

The method of expressing a fantastic pattern by the conventional technique requires a three-dimensional space, requires a lot of time for production, is not suitable for mass production, and is not suitable for use in a place or environment where it is used. However, there are drawbacks such as being limited to the above, or cannot be used for parts requiring transparency.

The present invention provides a laminated glass that emits visible light by irradiating ultraviolet rays as an object that can efficiently display a fantastic pattern without any hassle and that can be easily used in a living space or a business space. The purpose is to do.

[0005]

In order to achieve the above object, an object of the present invention is arranged such that a pattern formed of a coloring material that emits visible light by irradiating ultraviolet rays is provided between a plurality of glass plates. It is a laminated glass with a structure integrated with an adhesive film.

[0006] In displaying a fantastic pattern, the conventional method is not suitable for mass production due to the necessity of large-scale assembly on site and complicated electric wiring. Laminated glass can be mass-produced efficiently and is easy to construct.

The laminated glass of the present invention is thin, water-resistant,
Since it has moisture resistance and light resistance, it can be used for bathrooms, entrance doors, and indoor partitions in living spaces, and can be used for displays with a large decorative effect in business spaces.

The ultraviolet light used to emit the laminated glass of the present invention may be harmful to the human body at short wavelengths such as 254 nm, and those having a safe wavelength of 300 to 400 nm are preferable.

Hereinafter, the present invention will be described in detail. The glass plate used for the laminated glass of the present invention does not need to be special, but it is preferable that the glass plate transmits ultraviolet rays having a wavelength of 300 nm to 400 nm well, and an ordinary glass plate made of soda glass is preferable in terms of cost. is there.

The adhesive film used in the present invention can be used as long as it is for laminated glass. However, if it is desired to emit ultraviolet light by irradiating ultraviolet light through the adhesive film, it has good ultraviolet transmittance. Must be used.

As the adhesive film, a modified product of polyvinyl butyral or a hydrolyzate of an ethylene-vinyl acetate copolymer can be used. However, the ethylene-vinyl acetate copolymer hydrolyzate can be used at a relatively low temperature. Are preferred.

As the coloring material used in the present invention, which emits visible light upon irradiation with ultraviolet rays, a coloring material which adheres to a sheet-like object such as a glass plate, an adhesive film, a film or paper which constitutes a laminated glass is used. However, it is preferable that the pattern can be formed by handwriting or printing.

A coloring material having such properties is usually composed of a pigment or dye emitting visible light upon irradiation with ultraviolet rays, a binder, and if necessary, a solvent or an additive.

As the coloring material used in the present invention, a pigment which emits visible light by irradiating ultraviolet rays, particularly, a coloring material using an inorganic phosphor is preferable from the viewpoint of durability.

As the binder and the additive constituting the coloring material, those which do not substantially absorb ultraviolet rays and have good durability are suitable.

When a sheet-like object such as a film or paper having on its surface a pattern formed of a color material that emits visible light upon irradiation with ultraviolet rays is used as a constituent material of a laminated glass, a commercially available film or paper is used. However, polyester films are preferred in terms of strength, durability and transparency.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings. FIG. 1 shows an embodiment of a laminated glass obtained by bonding both sides of a film having a pattern formed of a coloring material which emits visible light by ultraviolet irradiation to the glass with an adhesive film. Can be carried out either on one side of the film or on both sides.

The film on which the pattern is formed is sandwiched between two adhesive films, and both sides thereof are sandwiched between two glass plates, and then placed in an airtight and flexible container.
The glass plate is pressed by suction with a vacuum pump,
Exclude the air between the two glass plates.

Next, the container is put into a heating furnace while maintaining the reduced pressure, and heated to a temperature equal to or higher than the softening temperature of the adhesive film to obtain a laminated glass.

As a container for pressing a glass plate by suctioning with a vacuum pump to remove air between the two glass plates, a heat-resistant rubber bag, a heat-resistant film bag or a gasket is used. Depending on the size of the laminated glass to be produced, a suitable one can be used, such as an apparatus having a structure capable of sealing and pressing at least one side of a glass plate with a flexible sheet.

FIG. 2 shows that a pattern formed of a coloring material that emits visible light upon irradiation with ultraviolet light is formed on both the inner surface of the glass and the interface between the adhesive film and the interface between the adhesive film and the polyester film. In this embodiment, a laminated glass exhibiting a three-dimensional image effect is obtained by arranging a pattern with a step in the vertical direction of a glass plate.

In the embodiment of FIG. 2, the pattern may be formed on the interface between the inner surface of the glass and the adhesive film by handwriting or printing on the glass plate, or by handwriting or printing on the adhesive film. It may be formed.

In the embodiment of FIG. 2, the pattern formation at the interface between the adhesive film and the polyester film may be performed on the adhesive film side or on the polyester side.

FIG. 3 shows a laminated glass bonded by an adhesive film and having a pattern formed of a coloring material which emits visible light upon irradiation with ultraviolet light, which is composed of one adhesive film and two glass plates. In one embodiment, laminated glass can be manufactured using a small number of materials.

[0025]

EXAMPLE An ink that emits visible light by irradiating ultraviolet rays to a stretched polyethylene terephthalate film having a thickness of 100 μm (Lumilight Yusei Ink manufactured by Shinloich Co., Ltd.)
The pattern was formed by silk printing. The film on which the pattern was formed was sandwiched between two adhesive films (Takemelt F700, manufactured by Takeda Pharmaceutical Co., Ltd.) having a thickness of 250 μm, and both sides were sandwiched between two glass plates made of soda glass having a thickness of 3 mm. This was put into a bonding machine consisting of a flat plate, a polyester film, and a gasket, which was kept airtight, and the pressure was reduced to 10 mmHg or less by a vacuum pump. Next, the container was put into a heating furnace while maintaining the reduced pressure, and the temperature was raised to 100 ° C. in 15 minutes, and then kept at 100 ° C. for 20 minutes. Next, the heating was terminated, and the temperature was lowered gradually to around 60 ° C., and then the finished laminated glass was taken out. When this laminated glass was irradiated with ultraviolet rays having a wavelength of 365 nm in the dark, a fantastic pattern emerged.

[0026]

As described above, the light-emitting laminated glass of the present invention is thin and has moisture resistance, water resistance and light resistance, so that it can give a fantastic impression in a living space or business space. It can be used as doors, partitions, decorations and displays.

[0027] Mass production is easier than light emitting equipment including a phantom lamp, a laser capable of displaying a fantastic pattern, or an electric light emitting device including electroluminescence.

The light-emitting laminated glass of the present invention can be attached to the place of use in the same manner as ordinary laminated glass, and the construction is simple because only an ultraviolet lamp needs to be added.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a light-emitting laminated glass.

FIG. 2 is a cross-sectional view showing an example of a light-emitting laminated glass.

FIG. 3 is a cross-sectional view showing an example of a light-emitting laminated glass.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glass plate 2 Pattern layer 3 Adhesive film 4 Polyester film

Claims (6)

[Claims] 1. A laminated glass having a pattern formed of a coloring material which is adhered by an adhesive film and emits visible light upon irradiation with ultraviolet rays, between a plurality of glass plates. 2. The laminated glass according to claim 1, wherein a pattern formed of a coloring material that emits visible light upon irradiation with ultraviolet rays is present on the surface of a sheet-like object such as a film or paper. 3. A sheet or a sheet-like object having a pattern formed of a coloring material which emits visible light upon irradiation with ultraviolet light, such as a film or paper, is obtained by laminating both surfaces of the sheet-like object with glass using an adhesive film. 1 laminated glass. 4. The laminated glass according to claim 1, wherein the adhesive film is a modified product of a hydrolyzate of an ethylene-vinyl acetate copolymer. 5. The laminated glass according to claim 1, wherein the coloring material that emits visible light upon irradiation with ultraviolet rays is an inorganic phosphor. 6. The laminated glass according to claim 2, wherein the sheet-like object such as a film or paper is a polyester film.