JPH09173783A - Flat glass, resin plate, manufacturing method thereof and pollutant removal method - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To remove pollutants in the atmosphere and dirt on the surface of a glass window or the like. A structure in which a photocatalyst composed of titanium dioxide or a mixture of titanium dioxide and activated carbon or the like is contained in an adhesive and applied to the main surface of a plate glass constituting a window, a door or a moving body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of using a photocatalyst, and more specifically, a method for removing low-concentration pollutants (nitrogen oxides) in the ambient air (International Patent Classification B01D5).
3/36), a plate glass having a photocatalyst on its main surface, a resin plate, and a method for manufacturing the same.

[0002]

2. Description of the Related Art As a means for removing nitrogen oxides in the atmosphere, a sheet-like or panel-like member having a photocatalyst on its surface is arranged as a soundproof wall of a road.
It is proposed in Japanese Patent No. 315614.

Similarly, a toxic gas removing device in which a photocatalyst is supported on a thin blade-shaped reaction plate and the reaction plate is arranged in a blind manner in an air passage is disclosed in Japanese Patent Laid-Open No. 6-10813.
No. 8 proposes this.

By the way, when a plate glass such as a wooden house, a high-rise building, a glass window or a glass door constituting an automobile or a vehicle is dirty, it is manually or automatically washed with water and a detergent.

[0005]

However, Japanese Patent Laid-Open No. 6-3
In the case proposed in Japanese Patent No. 15614, the soundproof walls arranged on both sides of the road are installed only in a limited range (region), and the operation area is limited. In addition, the soundproof wall is fixed and not mobile. Therefore, the area of action is also limited. Japanese Patent Laid-Open No. 6-108138 has the same problem.

[0006] It should be noted that dirt such as organic substances attached to the main surfaces of houses, high-rise buildings or glass windows of moving bodies (for example, automobiles) is removed by washing and is not automatically decomposed and removed by the photocatalyst. It was

[0007]

In order to solve the above-mentioned problems, the method of removing low-concentration pollutants (such as nitrogen oxides) in the ambient atmosphere, the plate glass and the resin plate according to the present invention are
Photocatalyst powder particles are provided on the main plane (surface) of a glass window or glass door that constitutes a building, a moving body, or the like.

Specific construction means for providing the photocatalyst on the principal plane of the plate glass or resin plate include (1) applying an adhesive member containing a photocatalyst to the principal plane of a sheet base material constituting the plate glass or resin plate (for example, Screen printing, roll printing, spray coating, etc.). (2) A manufacturing method characterized in that a sheet-shaped substrate is extruded from an extruder, an adhesive is printed by an application roller, and then photocatalyst powder particles are dispersed to dispose the photocatalyst on the main plane. (3) A manufacturing method characterized in that a sheet-shaped substrate is extruded from an extruder and then photocatalyst powder particles are dispersed to dispose the photocatalyst on the main plane. (4) A sheet-like substrate is extruded from an extruder, and then powder particles of the photocatalyst are dispersed, and then further pressed by a roller to embed the photocatalyst in the main plane of the sheet substrate. Method. (5) A method of manufacturing, wherein a sheet base material is extruded from an extruder, and then a mixture of a photocatalyst and a liquid component (for example, an organic adhesive) is printed on a main plane by a coating roller. Is used.

Among the above-mentioned constitution means, (1), (2),
As the adhesive member for carrying out (5), a thermosetting acrylic resin member (for example, acrylic melamine resin), an alkyd melamine resin member, or a vinyl acetate-based adhesive member,
Alternatively, one of an organic binder such as a fluororesin type, a silicon resin type, an epoxy resin type, or a UV resin (ultraviolet curing resin) is used.

Of course, the following members often used as a paste material may be used. For example, rice, corn starch, konjac, and other starch, gelatin, agar, natural rubber, and other natural materials, and polyvinyl alcohol (PVA / poval) and other water-soluble resin materials, rubber materials (eg, butyl rubber), vinyl chloride. Any material such as phenol resin may be used.

The poval is a white powder formed by reacting vinyl acetate resin with an alkali and is water-soluble. Other water-soluble plastic pastes include polyacrylic acid soda, CM
C (caboxymethylcellulose), methylcellulose,
Polyvinylpyrrolidone (water-soluble) or the like may be optionally used.

Needless to say, when the water-soluble adhesive is impregnated with a photocatalyst and disposed on a plate glass or a resin plate, the photocatalyst can be removed as necessary.

The photocatalyst contained in the adhesive member may be any photocatalyst such as titanium dioxide or a mixture of titanium dioxide and activated carbon.

Main plane (surface) of plate glass or resin plate
First, the surface of the photocatalyst contained and fixed in the adhesive member is initially covered with the organic binder (acrylic resin adhesive member or the like).

However, the photocatalyst is 300 nm to 400 nm
By receiving the near-ultraviolet light, the organic binder on the side receiving the near-ultraviolet light (the surface side in contact with the atmosphere) is decomposed and removed, and the photocatalyst is exposed. And it functions as a photocatalyst.

By placing a thin film of a photocatalyst consisting of titanium dioxide or a mixture of titanium dioxide and activated carbon on the surface of a plate glass or a resin plate by a method such as coating, printing, spraying or burying, a plate glass or a resin plate is obtained. Prevents surface stains, kills surface germs and removes scented odors. It also removes low concentrations of pollutants (such as nitrogen oxides) in the ambient air.

That is, 300 nm to 40 nm, such as the sun or a fluorescent lamp.
The photocatalyst that receives near-ultraviolet rays of 0 nm is activated and oxidizes and decomposes organic substances (acetaldehyde, ammonia, etc.), nitrogen oxides, chlorine compounds, and the like.

The coating thickness of the adhesive member containing the photocatalyst is set to a minimum of about 0.1 micrometer to several hundreds of micrometers.

The mixing ratio of the photocatalyst to be mixed with the adhesive member is 0.
The weight average particle diameter of the photocatalyst is 0.0
The range is from 1 micron meter to 100 micron meters.

The structure of the photocatalyst is, for example, JP-A-4-4.
It is proposed in Japanese Patent No. 5853. Here, a highly active photocatalyst is formed by bringing a catalyst carrying a reducing catalytically active component and a photocatalyst carrying an oxidizing catalytically active component into contact with each other, and further contacting a water-repellent substance with one of them. doing.

As a specific example, a component having catalytic activity for a reduction reaction of carbon dioxide gas such as copper or mercury is supported on a conductive carrier such as carbon black. In addition, a component such as silver or platinum having a catalytic activity for oxidizing water is supported on a semiconductor such as titanium dioxide. Then, the two are brought into contact with each other, but recombination of charges is prevented because the active sites are separated. Moreover, since the water-repellent substance is brought into contact with either,
The catalyst floats and exists in the aqueous solution surface layer to obtain a highly active photocatalyst.

The titanium alkoxide compound is dissolved in equimolar ethanol or the like, and hydrochloric acid or the like is added for hydrolysis. The obtained titanium oxide can be formed into any shape without a binder.

The titanium dioxide is preferably an anatase type, but may be a rutile type titanium dioxide metallized with copper, silver, platinum or other metals.

Further, W0 ↓ 2, CdS, SrTiO ↓
2, a semiconductor such as MoS ↓ 2 may be used to form the photocatalyst. Further, the transparent conductive powder particles Ti0 ↓ 2 may be used.

The plate glass member may be any member such as soda glass, sodium silicate, or tempered glass. The resin plate may be any resin member such as transparent acrylic resin, polycarbonate resin, vinyl chloride resin, or the like.

With the above-described structure, the present invention uses a special device or manpower for pollutants in the atmosphere, organic substances attached to the main surface of plate glass or resin plate constituting a building, a moving body (for example, an automobile), or the like. Can be removed without

Specifically, by exposing the photocatalyst to near-ultraviolet rays such as sunlight outdoors or indoors, it is possible to oxidize low-concentration nitrogen oxides in the atmosphere into nitric acid or the like and capture them on the photocatalyst. As a result, a healthy and comfortable life is enabled. In addition, the environment can be improved. With time, the photocatalyst mainly covers the active portion of the surface with products such as nitric acid, and the ability to remove pollutants gradually decreases, but the activity is restored by washing away the products by precipitation or washing.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION The method for removing pollutants according to claim 1 of the present invention is provided with a photocatalyst on the main surface of a plate glass constituting either a window or a door of a building or a moving body,
It is characterized by removing pollutants in the air by receiving near-ultraviolet rays, and pollutants in the air or organic substances (acetaldehyde, ammonia, etc.) attached to the main surface of plate glass, nitrogen oxides, chlorine compounds. It has the effect of oxidizing and decomposing etc.

Next, the method for removing contaminants according to claim 2 is the same as the method for removing contaminants according to claim 1.
The photocatalyst is characterized by mainly containing either one of titanium dioxide or a mixture of titanium dioxide and activated carbon, which is an organic pollutant in the atmosphere and an organic substance attached to the main surface of a window glass, a nitrogen oxide, It has the effect of oxidizing and decomposing chlorine compounds and the like.

Next, the plate glass for building materials according to claim 3 is characterized in that the main surface thereof is provided with a photocatalyst. By receiving near-ultraviolet rays, pollutants in the atmosphere and stains on the surface are removed. Has the action of removing.

Next, the plate glass according to claim 4 is characterized in that the powder particles of the photocatalyst are embedded in the main surface. By receiving near-ultraviolet rays, pollutants in the atmosphere and stains on the surface are removed. Has the action of removing.

Next, the plate glass according to claim 5 is provided with an adhesive member containing a photocatalyst on its main surface, and removes pollutants in the atmosphere and stains on the surface by receiving near ultraviolet rays. It has a function of removing pollutants in the atmosphere and dirt attached to the surface by receiving near ultraviolet rays.

Next, in the plate glass according to claim 6, the adhesive member according to claim 5 is obtained by using an acrylic member, a vinyl acetate member, a fluororesin member, a silicone resin member, an epoxy resin member, a urethane resin member or a polyester resin member. Or phenol resin type or polyvinyl chloride type or polyvinyl alcohol, or starch, or a mixture of acrylic emulsion and water, rubber, or vinyl chloride, which is characterized by being exposed to near ultraviolet rays This has the effect of removing pollutants in the atmosphere and dirt on the surface.

Next, the method for producing a sheet glass according to claim 7 is characterized in that the photocatalyst is arranged by spray coating in which an adhesive member containing the photocatalyst is sprayed by air pressure or vaporized gas, and the method is efficient. It has the effect that glass windows or glass doors can be mass-produced at low cost.

Next, the method for producing a sheet glass according to claim 8 is characterized in that the sheet substrate is extruded by an extruder and then the photocatalyst powder particles are dispersed to dispose the photocatalyst on the main surface. Therefore, the glass window or the glass door provided with the photocatalyst can be mass-produced efficiently and inexpensively without including an adhesive member.

Next, in the method for producing a sheet glass according to claim 9, the sheet base material is extruded from an extruder, the photocatalyst powder particles are sprinkled, and then the roller is pressed by the main surface of the sheet base material. It is characterized in that the photocatalyst is embedded therein, and has an effect that the glass window or the glass door having the photocatalyst and the smooth surface can be mass-produced efficiently without using an adhesive member and at a low cost.

Next, the method for producing plate glass according to claim 10 is characterized in that a sheet base material is extruded by an extruder and then a mixture of a photocatalyst and a liquid component is printed by a coating roller. It has the effect of being able to mass-produce glass windows or glass doors equipped with a photocatalyst efficiently and cheaply.

Next, in the method for producing a sheet glass according to claim 11, the sheet substrate is extruded by an extruder, an adhesive is printed by an application roller, and then the photocatalyst powder particles are sprinkled to spread the sheet. The photocatalyst is arranged on the main surface of the base material, and it has the effect of mass-producing glass windows or glass doors equipped with the photocatalyst efficiently and inexpensively.

Next, a resin plate according to a twelfth aspect is characterized in that powder particles of a photocatalyst are embedded in the main surface thereof. By receiving near-ultraviolet rays, contaminants in the atmosphere and stains on the surface are removed. Has the action of removing.

Next, the method for producing a resin plate according to a thirteenth aspect is characterized in that the photocatalyst is provided by spray coating in which an adhesive member containing the photocatalyst is sprayed by air pressure or vaporized gas, and the method is efficient. It has the effect of being able to mass-produce resin plates equipped with photocatalyst at low cost.

Next, the method for producing a resin plate according to a fourteenth aspect is characterized in that the sheet substrate is extruded by an extruder and then the photocatalyst powder particles are dispersed to dispose the photocatalyst on the main surface. Therefore, the resin plate provided with the photocatalyst can be mass-produced efficiently and inexpensively without using an adhesive member.

Next, in the method for producing a resin plate according to a fifteenth aspect, the sheet base material is extruded from an extruder, the photocatalyst powder particles are sprinkled, and then further pressed by a roller so that the sheet base material is mainly pressed. It is characterized in that a photocatalyst is embedded in the surface, and has an effect that a resin plate having a smooth surface and a photocatalyst can be mass-produced efficiently and inexpensively without using an adhesive member.

Next, the method for producing a resin plate according to a sixteenth aspect is characterized in that a sheet base material is extruded by an extruder and then a mixture of a photocatalyst and a liquid component is printed by a coating roller. It has the effect of being able to mass-produce resin plates equipped with photocatalyst efficiently and cheaply.

Next, in the method for producing a resin plate according to a seventeenth aspect, the sheet substrate is extruded from the extruder, the adhesive is printed by a coating roller, and thereafter the photocatalyst powder particles are sprayed on the main surface. It is characterized by disposing a photocatalyst, and has an effect that a resin plate equipped with a photocatalyst can be mass-produced efficiently and inexpensively.

Next, the plate glass for a moving body according to claim 18 is characterized in that it has a photocatalyst on its main surface and removes pollutants in the atmosphere and dirt on the surface by receiving near-ultraviolet rays. Thus, there is an effect that it is possible to mass-produce plate glass for automobiles etc. equipped with a photocatalyst efficiently and inexpensively.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. (Embodiment 1) FIG. 4 is an external perspective view of a wooden house 100 according to an embodiment of the present invention. 70 is a glass window,
Reference numeral 71 indicates a glass door. The sheet-shaped base material forming the glass window 70 or the glass door 71 is made of a plate glass or a resin plate.

The main planes (both the inner surface facing the room and the outer surface contacting the outside air) of the plate glass constituting the glass window 70 or the glass door 71 are transparent or have a photocatalyst contained in an adhesive member of a predetermined color tone. Is a predetermined film thickness dimension, for example 50
It is arranged at the micron meter.

As described above, the adhesive member is a thermosetting acrylic resin member (for example, acrylic melamine resin).
Or alkyd melamine resin member, vinyl acetate-based, fluororesin-based, silicon resin-based, epoxy resin-based, urethane resin-based or polyester resin-based, phenol resin-based, or polyvinyl chloride-based synthetic resin member (Or organic binder).

The photocatalyst contained in the adhesive member may be any photocatalyst such as titanium dioxide or a mixture of titanium dioxide and activated carbon.

The minimum coating thickness of the photocatalyst layer is about 0.3 μm to 50 μm.

The mixing ratio of the photocatalyst to be mixed with the adhesive member is 0.
The weight average particle diameter of the photocatalyst is 0.0
The range is from 1 micron meter to 30 micron meters.

In addition to the above-mentioned adhesive member, a method using an epoxy adhesive member may be used as a method for supporting titanium dioxide particles. In this case, the titanium dioxide particles are impregnated with water, dispersed in an adhesive member containing an epoxy resin, and then applied onto the principal plane of a sheet-like base material constituting a glass window or a glass door. Then, after primary drying at 30 to 50 degrees Celsius, evaporation of the thinner, secondary drying at 80 to 200 degrees Celsius, a photocatalyst layer is formed.

Needless to say, any method such as printing, dip coating, spray coating, electrostatic coating or powder coating may be used as the coating method.

Further, the UV resin may be made to contain photocatalyst powder particles so as to be applied to the main surface of the plate glass.

Further, titanium dioxide particles may be dispersed and applied to a portion corresponding to a pigment dispersion medium, that is, a portion corresponding to a transparent adhesive member (vehicle).

Further, the powder particles of the photocatalyst may be directly embedded in the surface of the plate glass or the resin member without using the adhesive member.

Further, as the sheet-like substrate, any member such as a transparent or colored glass substrate, a patterned opaque glass substrate, a transparent or colored resin substrate may be used. The transparent silicate glass does not absorb the ultraviolet and visible light regions of sunlight and activates the photocatalyst from the back surface of the plate glass.

Any object on which a window or a door (or a door) made of a glass member or a transparent resin member is installed may be arbitrarily selected. ), Railway vehicles, flying objects such as aircraft, ships), show windows, display cases (for example, Japanese Utility Model Laid-Open No. 62-198472, etc.),
The transparent window surrounding the product display section of the vending machine (for example, the transparent window section 5a in FIGS. 6 and 7 in JP-A-1-306988) may be arbitrary.

In the case of the four-wheeled vehicle, as the glass window, a photocatalyst, such as a windshield, a rear glass, a window glass which is attached to a door or a body and moves up and down, may be optionally provided.

(Embodiment 2) FIG. 1 is a side view of an essential part of an apparatus for manufacturing a sheet-like base material (plate glass or resin plate) constituting windows, doors, etc. according to Embodiment 2 of the present invention. The sheet-shaped base material will be described with an example of an acrylic resin member.

The apparatus for producing a sheet-shaped base material comprises an extrusion molding means for extrusion-molding a continuous sheet-shaped base material, an adhesive application means for printing an adhesive layer with an application roller, and a vibration or swinging means. It is provided with a photocatalyst particle supplying means using a shake or a cascade type electromagnetic vibrator provided, and a pair of heat forming roll means for making at least one main plane opaque by applying a pattern.

A method for producing a sheet-shaped substrate using the apparatus shown in FIG. 1 will be described. First, the extruder 40 and T
The sheet-shaped substrate 1 is continuously extruded into a thickness of about 1 mm to 10 mm by an extruding means using a die (not shown).

Next, the coating roller 4 is applied to one of the main planes (upper surface side in the embodiment of FIG. 1) of the sheet-shaped substrate 1 to be continuously molded.
4, the adhesive layer 19 is applied by printing using a coating roller 44 in a thin film having a thickness of about 2 to 20 μm. As the adhesive, for example, a transparent liquid member such as an ultraviolet curable resin or an acrylic resin is used.

The adhesive 41 is supplied to the coating roller 44 by the hopper 42, and the coating film thickness on the coating roller 44 is regulated by opening and closing the doctor blade 43 provided on the side wall of the hopper. The coating roller 44 is provided with a rubber lining 45 such as silicon or fluorine on the surface layer in a predetermined manner. The rubber lining 45 may be carried out as needed, and the application roller 4 may be used for letterpress printing or gravure printing.
4 There is no problem even if the surface is processed in a predetermined way. After that, the shake 6 located above the sheet-shaped substrate 1
The photocatalyst 4 in the form of powder particles is scattered on the main plane of the sheet-shaped base material 1 by vibrating it slightly by means such as an electromagnetic vibrator 7 connected to the sheet-like base material and rocking it left and right. The sheet-shaped substrate 1 on which the photocatalyst 4 is mounted is composed of a pair of heat forming rolls 8 and 9 (each having a temperature of 9 ° C
Both sides of the sheet-shaped base material 1 are formed into a predetermined shape by heating (0 degree), and the traveling direction is reversed to proceed toward the extruder 40.

As a matter of course, after the sheet-shaped substrate 1 is cooled, it is cut into a size corresponding to a window or a door (not shown).

Further, the photocatalyst 4 supplied on the sheet-shaped substrate 1 by using the shake 6 is not necessarily supplied for one particle layer, but is supplied in multiple layers. However, when the sheet-shaped substrate 1 is turned by the pair of heat-molding rolls 8 and 9, the photocatalyst other than the photocatalyst adhered by the adhesive force of the adhesive 41 is naturally dropped and removed. Of course, if necessary, an air spray nozzle or a scraping blade may be provided near the heat forming roll 8 to forcibly remove it.

Although the shake 6 and the electromagnetic vibrator 7 are used as the photocatalyst spraying means, a cascade type electromagnetic vibrator (for example, a product of Shinko Electric Co., Ltd.) may be used instead.
It may be sprayed directly from the gutter tip.

When the photocatalyst is arranged on the main plane of the sheet-like base material made of a glass member, the same operation can be carried out by changing the arrangement of the pair of heat forming roll means.
That is, the heat forming roll 9 may be arranged above the heat forming roll 8 so that the sheet-shaped substrate is linearly conveyed.

In the above embodiment, the photocatalyst is arranged on one of the main planes of the sheet-shaped base material, but the photocatalyst is arranged on both main planes of the sheet-shaped base material. It goes without saying that it is good.

(Embodiment 3) FIG. 2 is a side view of essential parts of a sheet-shaped substrate manufacturing apparatus in Embodiment 3 of the present invention. In this case as well, an example of a sheet-shaped substrate made of a resin member will be described.

The constitution of the apparatus is as follows. Extrusion molding means for extruding a continuous sheet-like base material, means for supplying a photocatalyst by a vacuum suction drum, and at least one of the main planes having an arbitrary pattern such as stripes or meshes. It comprises a pair of heat forming roll means for press forming the light scattering layer.

A method of manufacturing a sheet-shaped base material using the apparatus shown in FIG. 2 will be described. First, the sheet-shaped substrate 1 is continuously extruded into a thickness of about 1 mm to 10 mm by an extrusion molding means using an extruder 50 and a T die (not shown).

Next, the photocatalyst 4 adsorbed on the surface of the vacuum suction drum 53 is supplied to one main plane (upper surface side in the embodiment of FIG. 2) of the sheet-shaped substrate 1 to be continuously molded.

The vacuum suction drum 53 is made of a porous material such as ceramics or sintered metal, and is evacuated through the vacuum suction hole 54. The photocatalyst 4 is supplied to the vacuum suction drum 53 by the hopper 51, and the supply amount is regulated by opening and closing the doctor blade 52 arranged on the side wall of the hopper. Sheet-shaped substrate 1 with photocatalyst 4 mounted
In the same manner as in the apparatus configuration of the first embodiment, a pair of heat forming rolls 8 and 9 are used to form both surfaces of the sheet-shaped base material 1 into predetermined shapes, and the traveling direction is reversed to face the extruder 40. And proceed. Whether the photocatalyst 4 supplied onto the sheet-shaped base material 1 is mounted on the surface of the sheet-shaped base material 1 or embedded in the surface layer is formed by the heat forming rolls 8 and 9.
The distance can be set according to the center-to-center distance, and can be arbitrarily selected and implemented according to the target sheet-shaped substrate.

(Embodiment 4) FIG. 3 is a side view of essential parts of a sheet-shaped substrate manufacturing apparatus in Embodiment 4 of the present invention.

In this case also, an example of a sheet-shaped substrate made of a resin member will be described. The constitution of the apparatus is arbitrary such as extrusion molding means for extruding a continuous sheet-shaped substrate, coating means for printing a mixture of a photocatalyst and a liquid component by a coating roller, and stripe or mesh on at least one main plane. It is provided with a pair of heat-molding roll means for press-molding the pattern external light scattering layer.

A method of manufacturing a sheet-shaped substrate using the apparatus shown in FIG. 3 will be described. First, the sheet-shaped substrate 1 is continuously extruded into a thickness of about 1 mm to 10 mm by an extruding means using an extruder 60 and a T die (not shown).

Next, the coating roller 6 is applied to one principal plane (the upper surface side in the embodiment of FIG. 3) of the sheet-shaped substrate 1 to be continuously molded.
3, a mixed liquid photocatalyst 66 in which a photocatalyst and water or an adhesive liquid member such as an ultraviolet curable resin or an acrylic resin is mixed is printed and applied in a thin film form, and dried by a far infrared heater 65 or the like. Mixed liquid photocatalyst 6 for coating roller 64
6 is supplied by the hopper 61, and the coating film thickness is regulated by opening and closing the doctor blade 62 provided on the side wall of the hopper. The application roller 63 has a surface layer provided with a rubber lining 64 such as silicon or fluorine. The rubber lining 64 may be implemented as needed, and the surface of the application roller 63 may be processed in a predetermined manner such as letterpress printing or gravure printing. Thereafter, the sheet-shaped base material 1 is formed into a predetermined shape on both sides of the sheet-shaped base material 1 by a pair of heat forming rolls 8 and 9 as in the apparatus configuration of the first embodiment, and the traveling direction is reversed. Then proceed in the direction of the extruder 40.

In the above embodiment, an example of forming the light scattering pattern on the main plane of the sheet-shaped substrate has been described, or the light scattering pattern need not be provided, and both surfaces are It goes without saying that a flat transparent sheet (transparent plate glass or resin plate) may be used.

Similarly, the photocatalyst may be provided on both sides of the plate glass or the resin plate.

[0081]

INDUSTRIAL APPLICABILITY As described above, the method for removing pollutants and the plate glass and the resin plate in the present invention can oxidize pollutants in the air, such as low-concentration nitrogen oxides, into nitric acid and the like and capture them on the photocatalyst. . Further, it becomes possible to remove organic substances and the like attached to the main surface of the glass window or the glass door without using a special device or manpower.

Further, it is not necessary to separately manufacture and install a sheet or panel provided with a photocatalyst, a blind type toxic gas removing device, and the like. Of course, the space for installing sheets, panels, blind-type toxic gas removing devices, etc. is also unnecessary. Further, it becomes possible to mass-produce the sheet-shaped base material at low cost.

[Brief description of the drawings]

FIG. 1 is a side view of a sheet-shaped substrate manufacturing apparatus according to a second embodiment of the present invention.

FIG. 2 is a side view of a sheet-shaped substrate manufacturing apparatus according to a third embodiment of the present invention.

FIG. 3 is a side view of a sheet-shaped substrate manufacturing apparatus according to a fourth embodiment of the present invention.

FIG. 4 is a perspective view of a wooden house used for explaining the first embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet-shaped base material 4 Photocatalyst 6 Shaking 7 Vibrators 8 and 9 Heat forming rolls 40, 50 and 60 Extruders 41 Adhesives 42, 51, 61 Hoppers 43, 52 and 62 Blades 44 and 63 Coating rollers 45 and 64 Rubber linings 53 Drum 54 Vacuum Suction Hole 65 Heater 66 Mixed Liquid Photocatalyst 70 Glass Window 71 Glass Door 100 Wooden House

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location C03C 17/23 C03C 17/32 C 17/32 B01D 53/36 101Z

Claims (20)

[Claims] 1. A pollution characterized by comprising a photocatalyst on a main surface of a glass constituting a window or a door of either a building or a moving body, and removing pollutants in the atmosphere by receiving near ultraviolet rays. How to remove substances. 2. The method for removing pollutants according to claim 1, wherein the photocatalyst is mainly composed of either titanium dioxide or a mixture of titanium dioxide and activated carbon. 3. A plate glass for building material, comprising a photocatalyst on its main surface and removing near-ultraviolet rays to remove contaminants in the atmosphere and stains on the surface. 4. A plate glass characterized by embedding powder particles of a photocatalyst on a main surface and receiving near-ultraviolet rays to remove pollutants in the atmosphere and stains on the surface. 5. An adhesive member containing a photocatalyst is provided on the main surface,
A plate glass characterized by removing pollutants in the atmosphere and stains on the surface by receiving near-ultraviolet rays. 6. The adhesive member is made of acrylic resin, vinyl acetate resin, fluororesin resin, silicon resin resin, epoxy resin resin, urethane resin resin, polyester resin resin, phenol resin resin, polyvinyl chloride resin, polyvinyl alcohol, or starch. Or a mixture of acrylic emulsion and water, rubber, or vinyl chloride. 7. A method of manufacturing a plate glass, which comprises disposing the photocatalyst by spray coating in which an adhesive member containing the photocatalyst is sprayed by air pressure or vaporized gas. 8. A method of manufacturing a plate glass, which comprises extruding a sheet base material from an extruder and then disposing photocatalyst powder particles to dispose the photocatalyst on the main surface. 9. The photocatalyst is embedded in the main surface of the sheet base material by extruding the sheet base material from an extruder, then spraying powder particles of the photocatalyst, and then pressing with a roller. Method for manufacturing flat glass. 10. A method for producing a sheet glass, which comprises extruding a sheet base material from an extruder and then printing a mixture of a photocatalyst and a liquid component with a coating roller. 11. A sheet glass characterized in that a sheet substrate is extruded from an extruder, an adhesive is printed by an application roller, and then photocatalyst powder particles are dispersed to dispose a photocatalyst on the main surface. Production method. 12. A resin plate, characterized in that powder particles of a photocatalyst are embedded in the main surface, and by receiving near-ultraviolet rays, pollutants in the atmosphere and stains on the surface are removed. 13. A method for producing a resin plate, wherein the photocatalyst is provided by spray coating in which an adhesive member containing the photocatalyst is sprayed with air pressure or vaporized gas. 14. A method for producing a resin plate, which comprises extruding a sheet base material from an extruder and then spraying photocatalyst powder particles to dispose the photocatalyst on the main surface. 15. The photocatalyst is embedded in the main surface of the sheet base material by extruding the sheet base material from an extruder, then spraying photocatalyst powder particles, and then further pressing with a roller. Method for manufacturing resin plate. 16. A method for producing a resin plate, which comprises extruding a sheet base material from an extruder and printing a mixture of a photocatalyst and a liquid component with a coating roller. 17. A resin plate characterized in that a photocatalyst is provided on the main surface by extruding a sheet base material from an extruding machine, printing an adhesive with a coating roller, and then spraying photocatalyst powder particles. Production method. 18. A glass plate for a moving body, which comprises a photocatalyst on its main surface and removes pollutants in the atmosphere and dirt attached to the surface by receiving near-ultraviolet rays. 19. An automatic vending machine, comprising a photocatalyst on a main surface of a see-through window, and removing pollutants in the atmosphere by receiving near ultraviolet rays. 20. A display case, comprising a photocatalyst on a main surface of either the transparent door or the transparent door, and removing pollutants in the atmosphere by receiving near ultraviolet rays.