JP2008132688A - Sheet glass with excellent sheening function and interior illumination using this sheet glass - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet glass with an excellent sheening function featuring designability, safety and capability of restraining light permeability, and a highly applicable interior illumination using this sheet glass. <P>SOLUTION: This sheet glass comprises the following laminar structure: A design sheet with a toner image 3 printed using a copy machine of electrophotography system overlies the back surface side of a tempered sheet glass 1 in the way that the toner image 3 is located on the tempered sheet glass 1 side. In addition, a light transmission restraining sheet 5 of a specified shape overlies. Further, the light transmittance of the design sheet in compliance with JIS K 7105 is 5 to 50% and the light transmittance of the light transmission restraining sheet 5 is not more than 1%. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention is a glass excellent in chrominance function in which a film and paper having a total light transmittance of 5 to 50% and a sheet having a transmittance of 1% or less are laminated on the back side of the tempered glass plate, and the light transmittance can be adjusted. Regarding the board. The present invention also relates to interior lighting in which a light source and a device and apparatus for applying the light source are integrated on the back surface of such a glass plate.

Conventionally, since a glass plate is a material excellent in transparency, it has been widely used for windows, furniture, or construction. Various proposals have been made, for example, as decorative glass plates, stained glass, laminated glass used for indoor partitions, and the like as materials for imparting design properties to these glass plates and coloring indoor spaces.
JP-A-6-183786

However, these glass plates are often used for single purposes such as interiors and partitions. For example, as a glass plate for wall surfaces having a design property in the daytime, lighting having a design property in the nighttime. No proposal has been made to use the same glass plate as a wall glass plate for primary or secondary use, and the optical transparency of printing materials and associated sheets for imparting design to the glass plate. However, there was a problem that the construction could not be easily performed.

In the present invention, it is an object of the present invention to solve such problems of conventional glass plates, and to provide a glass plate that is safe with design and suppresses light transmission and has an excellent coloring function. . Moreover, the subject of this invention is also providing the interior illumination which is excellent in the construction property using such a glass plate.

As a result of various studies, the present inventors have found that the toner image of the design sheet on which the toner image is printed on the back side of the reinforced glass plate using an electrophotographic copying machine is located on the reinforced glass plate side. The light transmission suppressing sheet having a predetermined shape is laminated, the design sheet has a light transmittance of 5 to 50% according to JIS K 7105, the light It has been found that the light transmittance is adjusted when the light transmittance of the transmission suppressing sheet is 1% or less, and the present invention has been completed.

That is, the glass plate excellent in the coloring function of the present invention capable of solving the above-mentioned problems is a glass plate having an interior illumination and a sign function by providing a light source from the back surface of the glass plate having design properties and transmitting light. The glass plate has a layer configuration in which a design sheet having a printed layer / a light transmission suppressing sheet having a predetermined shape is laminated on the back side of the tempered glass plate, and the design sheet is JIS The light transmittance according to K7105 is 5 to 50%, and the light transmittance of the light transmission suppressing sheet is 1% or less.

Further, in the present invention, in the glass plate having the above-described characteristics and excellent in the coloring function, the design sheet base material having the printed layer is a polyethylene terephthalate film having a concealing property and having a thickness of 50 to 125 μm and excellent scattering prevention. It is characterized by.

Further, the present invention is characterized in that in the glass plate having the above-mentioned characteristics and excellent in the coloring function, the design sheet substrate having a printing layer is paper having a thickness of 20 to 100 μm.

The present invention is also characterized in that, in the glass plate having the above-described characteristics and excellent in the coloring function, the printed layer imparting design properties is an organic pigment having excellent light transmittance.

Furthermore, the present invention is also interior lighting using the above-described glass plate having an excellent coloring function, and this interior lighting is a design sheet having a printing layer / light transmission having a predetermined shape on the back side of the tempered glass plate. It is interior lighting in which an instrument and a device for providing a light source are incorporated on the back side of a glass plate on which a suppression sheet is laminated, and the design sheet has a light transmittance of 5 to 50% in accordance with JIS K 7105 The light transmittance of the light transmission suppressing sheet is 1% or less.

In the interior lighting described above, the present invention is characterized by using a baseboard and a parting piece for integrating the appliances and apparatuses with the glass plate having an excellent coloring function.

In the interior lighting described above, the present invention is characterized in that the light source for applying the light is an LED having a light angle of 30 to 120 degrees.

The glass plate excellent in the coloring function of the present invention allows the printed layer provided on the back side to be observed through the tempered glass plate, and not only has excellent design but also uses two types of sheets having different light transmittances. The interior lighting is also excellent, and it is possible to provide interior lighting with excellent workability by integration with a light source, an instrument, and a device.

First, the present invention will be described in detail with reference to FIG. 1 showing the layer structure of a preferred example of a glass plate excellent in the coloring function of the present invention.
As shown in FIG. 1, the glass plate excellent in the coloring function of the present invention is laminated with a design sheet having a printed layer 3 on the back side of the reinforced glass plate 1 as a base material, and suppresses light on the back side. In general, it has a layer structure in which sheets are laminated, and is generally reinforced glass plate 1 / adhesive layer 2 / printing layer (toner image) 3 / sheet base material 4 / adhesive layer 2 / light transmission suppression It is a laminate having the layer configuration of the sheet 5. Further, as shown in FIG. 2, a base plate D and a parting E for integrating the box incorporating the light source A, the instrument B, and the wiring C and the laminate are provided on the back surface of the laminate. .

The glass plate excellent in the coloring function of the present invention used as a wall material is a tempered glass plate as a base material, and it is possible to use a tempered glass plate with reinforcement treatment. Because a tempered glass plate that has been reinforced by chemical strengthening is used, as in the case of a float glass plate, the broken pieces will not have a sharp shape in the unlikely event that they break, Since the fragments are granular, there is no risk of injury due to the fragments, and there is an advantage that they are excellent in safety. Also, the heat-treated tempered glass plate has an impact strength 3 to 5 times that of the float glass plate. ing. Further, the chemically strengthened glass plate has the advantage of being excellent in cutting and workability as compared with the heat strengthened glass plate.

The tempered glass plate constituting the glass plate excellent in the coloring function of the present invention is 6 to 9 m in terms of average breaking height. This test is a test according to JIS R 3206, and a steel ball having a mass of 225 g is 30.3 cm. It falls to the center of a 30.3 cm test piece and the height of the breakage is measured. The fracture height largely depends on the thickness of the glass plate. In the present invention, the thickness of the tempered glass plate is preferably 5 mm or more. Further, when this impact strength is compared with other things, a ceramic tile or the like generally used as a wall material has a thickness of 10 mm, and when a steel ball having a mass of 28.8 g is dropped, its breaking height is 0. 66m. From these figures, it can be said that the tempered glass plate is a glass plate excellent in impact property, that is, safety.

The glass plate excellent in the coloring function of the present invention has the above-mentioned layer structure, and forms a toner image using an electrophotographic apparatus on a sheet base material having a concealment property on the back surface of the above-mentioned reinforced glass plate. After forming the sheet, the toner image and the tempered glass plate are laminated via an adhesive so that they face each other. This design sheet is preferably a sheet having a concealing property in order to retain a toner image and reflect the design (toner image) from the surface of the glass plate, and the color tone having the concealing property is white or A light-colored sheet close to white is particularly preferable. When the sheet is colored, the toner image is assimilated with the sheet color, and a clear design is hardly reflected on the surface of the glass plate. The design sheet preferably has a total light transmittance of 5 to 50% in accordance with JIS K 7105, more preferably 10% or more, from the viewpoint of having the coloring function of the present invention. In the case of 5% or less, there is a possibility that the transparency is insufficient when a light source is applied, and the chromatic function is inferior. On the other hand, when a transparent film or a transparent sheet is used, the light transmittance is 50% or more and is sufficiently light transmissive, but the design property is not easily reflected. In addition, since the device can be seen through, there is a drawback that it does not look good and lacks design. In the present invention, a sheet having a light transmittance in the range of 10% to 30% having white or a lighter color concealing property closer to white is particularly preferable.

And in the present invention, as a means for having a coloring function, the transmittance is adjusted by using two kinds of sheets having different light transmittances together, but the first sheet has the above-described printing layer. A light suppression sheet is used as the second sheet. This light suppressing sheet is, for example, laminated on the back surface of a design sheet via an adhesive after being cut out in a predetermined shape such as a logo mark, a sign, a geometric pattern, and a pattern. A sheet having a transmittance of 1% or less is preferred. In other words, the portion cut out when the light source is applied has a coloring function due to the transparency of the design sheet, and conversely, the remaining portion blocks light transmission, so the light source is reflected only in the cut out shape. At the same time, since the toner image printed on the design sheet is also raised, it becomes a glass plate having a fantastic coloring function. When no light source is applied, only the image printed on the design sheet is reflected on the glass plate surface, resulting in a glass plate having a design property. As the material for the light transmission suppressing sheet, any of vinyl chloride, urethane, acrylic, polyester, olefin resin sheets can be used, and it is said that aluminum foil is deposited on these resins. A film etc. can also be used. In general, a sheet called a cutting sheet having a light transmittance of 1% or less may be selected.

In addition, the design sheet having the concealing property of the present invention is also excellent in the effect of preventing scattering so that the fragments are not scattered even if the tempered glass plate is broken, and as a material of this design sheet base material, Examples include vinyl chloride film, urethane film, acrylic film, polyester film, and olefin film, all of which can be used, but olefin film and polyester film that are rich in chemical resistance and solvent resistance. Is preferred. In particular, a polyester-based polyethylene terephthalate film having a heat resistance and a thickness of 50 to 125 μm is preferable.

And as a design sheet base material which has the printing layer which comprises the glass plate of this invention, the papers which have concealability other than said resin film are also used. As the material, generally, any of high-quality paper, coated paper, impregnated paper impregnated with each resin, and the like can be used. In the present invention, it is particularly preferable to use an impregnated paper impregnated with a resin having a thickness of 20 to 100 μm from the viewpoint of preventing scattering.

Furthermore, in the present invention, the printing method on the sheet is not limited as a means for imparting design properties, and any printing method such as gravure printing, silk printing, and offset printing that are generally used may be used. From the viewpoint of being suitable for a variety of types and small lots, a plateless printing method using an electrophotographic apparatus is preferable, and a sheet on which a toner image is printed using an electrophotographic electrophotographic apparatus (copier) is used. Then, the toner images are laminated so that the toner images are located on the tempered glass plate side. For toners installed in copying machines, basically, styrene / acrylic copolymers, styrene / butadiene copolymers, binder resins mainly composed of resins such as epoxy and polyester, carbon black, yellow, cyan, etc. In addition, an electrophotographic toner containing an organic pigment such as magenta can be used. In particular, the color toners shown below are those that can bring out the chromatic function effect of the glass plate of the present invention. The toner powder for a color electrophotographic apparatus needs to have good meltability and color mixing properties when heat is applied, and is preferably a sharp melt toner having a low softening point and a short melting time. By using the sharp melt toner, the color reproduction range of the copy can be widened, and a color copy faithful to the multicolor image of the original can be favorably obtained. Such sharp melt toners are produced by, for example, melting and kneading, pulverizing, and classifying a binder resin such as polyester resin or styrene / acrylic resin, a colorant (organic pigment, dye), a charge control agent, and the like. Yes. As described above, the toner is mainly composed of a binder resin and a colorant, and the organic pigment used in the toner is more transparent than the inorganic pigment, and is a printing material having excellent light transmittance. It is the most preferable printing material for printing on the design sheet of the present invention.

In the present invention, it is also interior lighting that combines the glass plate having the above-mentioned chrominance function and a device for providing a light source. If described with reference to FIG. 2, first, the symbol B is the same size as the size of the glass plate. It is a steel frame, and a light source A and wiring C are incorporated in the steel frame. By irradiating the light source, the design sheet having the light transmittance of 5 to 50% and the light transmission having the layer configuration of the glass plate F described above. By transmitting light between the light transmission suppressing sheet cut into a predetermined shape with a rate of 1% or less and the toner image, the interior lighting with a design property is obtained.

Moreover, in order to integrate the steel frame and the glass plate, by joining and fixing the glass plate F with the parting E and the baseboard of D, it becomes interior lighting with excellent workability that can be easily constructed. It is.

In the present invention, a light source is used to effectively bring out the design and lighting characteristics of the glass plate F described above, but it is preferable to use an inexpensive and easy-to-handle LED as the light source. Since the shape of the LED element can be arbitrarily manufactured, it is suitable as the interior lighting of the present invention shown in FIG. Moreover, although the brightness | luminance of LED is generally classified into general-purpose brightness | luminance, high brightness | luminance, and ultra-high brightness | luminance, what is necessary is just to be selected according to a use location and the objective, and it is preferable to adjust with the shape, size, and quantity of a LED element. That is, the light source can be arbitrarily adjusted by increasing the quantity as shown in FIG. 3 when increasing the brightness, and decreasing the quantity when decreasing the brightness. FIG. 3 is a plan view in which the LDE combined with this LED element is unitized. In general, when an LED is used, the radiation angle of the light source emitted from the LED is important, and the light angle ranges from 30 degrees to 120 degrees. A range of degrees is preferable, and when the light angle is 30 degrees or less and the interval between the LEDs is wide, a valley of light is generated between the LEDs, that is, a shadow is generated, and brightness and design associated therewith are lacking. A range of ˜120 degrees is particularly preferred. Moreover, although LED differs from the above-mentioned light angle, light diffusivity is also an important point, and there exists an effect which illuminates on average, so that the light radiated | emitted from an LED element diffuses widely. In the present invention, the mounting position of the LED is not limited, and it may be mounted depending on the shape and the stacking position of the cutting sheet used for the glass plate described above. In other words, it functions as interior lighting that illuminates the feet when attached to the lower part of the glass plate, and as interior lighting that illuminates the entire surface when attached to the entire surface. Thus, the LED installation position may be adjusted arbitrarily.
Hereinafter, although the Example of the glass tile for floors of this invention is shown, this invention is not limited to this.

[Example 1]
A float glass plate having a thickness of 5 mm, a length of 45.5 cm, and a width of 45.5 cm was heated to near the softening temperature of the glass plate (680 ° C.) in a heat treatment furnace and cooled to produce a strengthened glass plate.
(2) A toner image was formed on a (white) polyethylene terephthalate film having a thickness of 75 μm and having a total light transmittance of 8% by an electrophotographic apparatus (manufactured by Canon) to obtain a design sheet.
(3) An adhesive is applied to the image surface of the design sheet with a comma coater, dried, and then attached with a roll press so that the toner image layer and the tempered glass plate face each other, pressure 700 g / cm ² , heat The press was pressed with a 120 ° C. up-down press. The glass plate produced by this method has a design property in which the toner image is clearly reflected.
(4) On the back surface of the design sheet, a vinyl chloride cutting sheet (black) having a light transmittance of 1% or less cut out in the shape of a logo mark was passed through an adhesive to produce a glass plate having an excellent coloring function.
(5) A steel frame having a length of 45.5 cm and a width of 45,5 cm was prepared, and a unit in which 30 LEDs having a light angle of 90 degrees were assembled was set in the frame to obtain a light source.
(6) The glass plate manufactured in (4) was set on the upper part of the steel frame, the upper part was cut off, the baseboard was set on the lower part, and the glass plate was integrated to manufacture interior lighting. The glass plate manufactured in this way became a chromatic interior lighting that transmitted light in the shape of the logo mark. And the test of the chromaticity of the shape part was conducted. The results are shown in Table 1.

[Sense of chromaticity in darkness]
Judgment was actually made based on the senses of several people, and the evaluation was made in the following three stages.
: The shape is bright and clear.
: The contour of the shape can be confirmed.
X: The shape is blurred and difficult to confirm.

[Example 2]
Interior lighting was manufactured in the same manner as in Example 1 except that resin-impregnated paper having a thickness of 20 μm and a light transmittance of 50% was used as the design sheet, and the same test as in Example 1 was performed. The results are shown in Table 1.

[Example 3]
Interior lighting was manufactured in the same manner as in Example 1 except that the design sheet was a polyethylene terephthalate film having a thickness of 125 μm and a light transmittance of 5%, and the same test as in Example 1 was performed. The results are shown in Table 1.

[Example 4]
Interior lighting was manufactured in the same manner as in Example 1 except that the design sheet was a polyethylene terephthalate film having a thickness of 50 μm and a light transmittance of 11%, and the same test as in Example 1 was performed. The results are shown in Table 1.

[Comparative Example 1]
Interior lighting was manufactured in the same manner as in Example 1 except that the design sheet was a polyethylene terephthalate film having a thickness of 188 μm and a light transmittance of 3%, and the same test as in Example 1 was performed. The results are shown in Table 1.

[Comparative Example 2]
Interior lighting was manufactured in the same manner as in Example 1 except that a cutting film having a light transmittance of 2% of the light transmission suppressing sheet was used, and the same test as in Example 1 was performed. The results are shown in Table 1.

Examples 1 to 4 (product of the present invention) have excellent chromaticity with a design property, and are effective as interior lighting that illuminates the feet even in darkness. Since Comparative Example 1 has a low light transmittance, it is inferior in chromaticity and lacks brightness as well as interior lighting. Although the comparative example 2 has the brightness equivalent to Examples 1-4, it is inferior to chromaticity.

The glass plate excellent in the coloring function of the present invention controls the light transmittance by combining sheets having different light transmittances, and is combined with an LED light source as a design wall material in the daytime. Thus, at night, a function as interior lighting is added, and a glass plate and interior lighting corresponding to a wide variety and a small lot with signboard and sign functions can be provided.

It is a figure which shows the layer structure in a preferable example of the glass plate excellent in the chromaticity of this invention. It is a schematic sectional drawing which integrated the glass plate and light source which are excellent in chromaticity. It is a top view of the unit which set the element of LED.

Explanation of symbols

1: Reinforced glass plate 2: Adhesive layer 3: Print layer (toner image)
4: Sheet base material 5: Light transmission suppression sheet A: Light source B: Instrument
C: wiring D: skirting board E: parting F: glass plate excellent in chrominance function a: LED element b: LED unit

Claims (7)

It is a glass plate having interior lighting and sign function by applying a light source from the back side of the glass plate having design properties, and the glass plate has a printed layer on the back side of the tempered glass plate It has a layer structure in which a design sheet / light transmission suppression sheet having a predetermined shape is laminated, and the design sheet has a light transmittance of 5 to 50% according to JIS K 7105, the light transmission suppression sheet A glass plate excellent in chrominance function, characterized by having a light transmittance of 1% or less. The glass sheet excellent in chrominance function according to claim 1, wherein the design sheet substrate having a printed layer is a polyethylene terephthalate film having a concealing property and having a thickness of 50 to 125 µm and excellent in scattering prevention. The glass plate excellent in the coloring function according to claim 1 or 2, wherein the design sheet substrate having a printed layer is paper having a thickness of 20 to 100 µm. 4. The glass plate having excellent chromogenic function according to claim 1, wherein the printed layer imparting design properties is an organic pigment having excellent light transmittance. An instrument and a device for applying a light source to the back side of a glass plate excellent in the coloring function in which a design sheet having a printed layer / a light transmission suppressing sheet having a predetermined shape are laminated on the back side of the tempered glass plate The interior lighting is characterized in that the design sheet has a light transmittance of 5 to 50% according to JIS K 7105, and the light transmittance of the light transmission suppressing sheet is 1% or less. illumination. The interior lighting according to claim 5, wherein a baseboard and a parting piece are used for integrating the appliance and apparatus with the glass plate having an excellent coloring function. The interior illumination according to claim 5 or 6, wherein the light source for imparting light is an LED unit having a light angle of 30 to 120 degrees.

Images