JP2021054692A - Debris incorporating glass laminate and manufacturing method thereof - Google Patents

Abstract

To provide a debris incorporating glass laminate capable of generating characteristic and specific reflected light by scattering light in various directions without damaging a glass plate, even when the light reflective material is held in the laminated glass and a manufacturing method thereof.SOLUTION: A debris incorporating glass laminate 1 according to the present invention comprises: a pair of glass sheets 2 bonded together via an intermediate film 3; and a number of debris 4 which are embedded in the intermediate film 3 and having light reflection characteristics. Furthermore, a plurality of black pieces 5 made of blacks are embedded together with the pieces 4 in the intermediate film 3. The black pieces 5 are smaller and less in number than that of debris 4.SELECTED DRAWING: Figure 2

Description

The present invention relates to a laminated glass containing fragments containing fragments such as mirror glass and a method for manufacturing the same.

Laminated glass in which glass plates are bonded via an interlayer film is known. Further, there is also known a technique of reflecting light by interposing a film between the interlayer film and a glass plate (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-209368

However, if all the films that are the light reflecting surfaces are oriented in the same direction as in Patent Document 1, all the light reflecting directions are also aligned, and a phenomenon such as so-called diffuse reflection cannot occur. There is also a demand for reflecting the light incident on the glass surface in various directions, and there is also a case where it is desired to give each glass plate a characteristic and unique design effect.

For that purpose, a substance that reflects light may be sandwiched in the laminated glass, but if such a substance is sandwiched in the adhesive layer of the laminated glass, this substance hits the glass plate, and the glass is manufactured or used during the production or use of the laminated glass. The board may be damaged.

The present invention takes into consideration the above-mentioned prior art, and is characteristic in that light is scattered in various directions without damaging the glass plate even when a light reflecting substance is sandwiched in the laminated glass. Another object of the present invention is to provide a laminated glass containing fragments and a method for producing the same, which can generate unique reflected light.

In order to achieve the above object, the present invention includes a pair of glass plates bonded to each other via an interlayer film, and innumerable fragments made of a substance embedded in the interlayer film and having light reflection characteristics. Provided is a laminated glass with built-in fragments.

Preferably, a plurality of black pieces, which are embedded together with the debris and are composed of black, are further provided in the interlayer film, and the black pieces are smaller and smaller in number than the debris.

Preferably, the debris or the black piece has corners in the direction of the glass plate.

Preferably, the debris is made of mirror glass or metal.

Preferably, the black piece is formed of cells used for photovoltaic power generation.

Preferably, the interlayer film is an SG film made of an ionomer resin.

Preferably, it further includes a frame body in which the periphery of the pair of glass plates is fitted, and a light source body which is built in at least one side of the frame body and irradiates the fragment direction.

Further, in the present invention, there is a fragment manufacturing process in which a substance having light reflection characteristics is fragmented to produce fragments having a certain size or larger by sieving, and a two-layer interlayer film is arranged between a pair of glass plates, and further, between them. It is characterized by comprising a laminating step of arranging the fragments to form a laminated body and a bonding step of vacuuming the laminated body and then heating the laminated body to bond the pair of glass plates to each other by the interlayer film. Provided is a method for manufacturing a laminated glass containing fragments.

Preferably, it further comprises a black piece manufacturing step of sharding the black substance and sieving to produce a black piece smaller than the piece, and in the laminating step, the black piece is combined with the piece into the two-layer interlayer film. Place between.

Preferably, the sieve in the debris manufacturing step is sieved 20 times with a 5 mm mesh sieve, the sieve in the black piece manufacturing step is sieved 20 times with a 3 mm mesh sieve, and 700 g / in the laminating step. The m ² pieces and the 4 g / m ² black pieces are arranged.

According to the present invention, in a laminated glass made of a pair of glass plates bonded to each other via an interlayer film, innumerable fragments made of a substance having light reflection characteristics are embedded in the interlayer film, so that the fragments are formed. It does not come into contact with the glass plate, and the glass plate is not damaged. In addition, since innumerable fragments are arranged, light can be scattered in various directions to generate characteristic and unique reflected light.

In addition, by further embedding a plurality of black pieces consisting of black together with the fragments in the interlayer film, black pieces that do not reflect light are embedded in addition to the fragments that reflect light, so that the appearance is characteristic and unique. Laminated glass can be provided. At this time, by making the size and number of the black pieces smaller than the pieces, the reflection of light by the pieces is not hindered.

Further, even when the fragments or black pieces have corners in the direction of the glass plate, since they are embedded in the interlayer film, they do not come into contact with the glass plate, and such a sharp shape can be obtained. It is possible to provide a laminated glass suitable for arranging the fragments or black pieces to be held in the middle.

Further, by forming the fragments with mirror glass or metal, light can be reflected and scattered.

Further, by forming the black piece with a cell used for solar power generation, for example, a cell to be discarded can be reused, which can contribute to effective use of resources and the environment.

Further, by using the SG film made of an ionomer resin as the intermediate film, the transparency of the intermediate film is increased and the reflection of light by the debris is not hindered. In addition, strength can be secured.

In addition, the periphery of the pair of glass plates is fitted into the frame, and the light source body built in at least one side of the frame irradiates the fragments toward the fragments, thereby providing light scattering even at night without sunlight. You can improve the appearance.

Further, according to the present invention, since vacuuming is performed before heating in the bonding step, even if bubbles are formed when the laminate is formed, they can be removed, and when the layers are heated as they are, the bubbles can be removed. Can be prevented from swelling and bursting.

Further, both the fragments and the black fragments can be easily formed into a certain size by sieving, and the production can be easily performed.

In addition, the sieving in the debris manufacturing process is sieved 20 times with a 5 mm sieve, the sieving in the black piece manufacturing process is sieved 20 times with a 3 mm sieve, and the debris is 700 g / m ² in the laminating process, black. By arranging the pieces at 4 g / m ² , the reflection and absorption of light can be combined and the entire glass can be balanced.

It is a schematic front view of the laminated glass with a built-in fragment which concerns on this invention. It is the schematic sectional drawing of the laminated glass with built-in fragments which concerns on this invention. It is a schematic front view when the laminated glass with built-in fragments according to the present invention is fitted into a frame body. It is schematic cross-sectional view when the laminated glass with built-in fragments which concerns on this invention is fitted in a frame body. It is a flowchart of the manufacturing method of the laminated glass with built-in fragments which concerns on this invention.

As shown in FIGS. 1 and 2, the laminated glass 1 with built-in fragments according to the present invention is formed by laminating a pair of glass plates 2 (2a, 2b). An interlayer film 3 as an adhesive is arranged between the glass plates 2a and 2b. Therefore, the pair of glass plates 2 are bonded to each other via the interlayer film 3. Innumerable fragments 4 are embedded in this interlayer film. The fragment 4 is formed of a substance having a light reflection property. In addition, innumerable means that the number is infinite and innumerable, but as shown in FIG. 1, it can be counted if it is intended to be counted, but it also includes those that require considerable labor and time. .. Further, the light reflection characteristic means a characteristic that reflects light rather than transmitting or absorbing it. For example, as the fragment 4, a mirror glass or a crushed metal can be used.

In this way, in the laminated glass 1 made of a pair of glass plates 2 bonded to each other via the interlayer film 3, innumerable fragments 4 made of a substance having light reflection characteristics are embedded in the interlayer film 3. , The debris 4 does not come into contact with the glass plate 2, and the glass plate 2 is not damaged. In addition, since innumerable pieces 4 having various shapes are arranged, light can be scattered in various directions to generate characteristic and unique reflected light. In particular, by forming the fragment 4 from mirror glass or metal, the shape of the laminated glass 1 can be changed not only on the front view side but also in the thickness direction, so that the scattering effect due to such light reflection can be easily achieved. Obtainable. Any glass plate may be used as the glass plate 2 (float glass (FL), wire-reinforced glass (PHW), double-strength glass (HS), wind-cooled tempered glass (PT), chemically strengthened glass ( PT) etc.). However, it is preferable that the glass plate 2 is transparent, that is, has light transmission so that the design effect due to the reflection of light can be efficiently obtained. Further, a glass plate having a high transmission double strength of 8 mm or more is preferable because it can withstand a certain amount of wind pressure.

The laminated glass 1 with built-in fragments further includes a plurality of black fragments 5. The black piece 5 is embedded in the interlayer film 3 together with the piece 4. The black piece 5 is black, smaller than the piece, and distributed in a small number. That is, since the black pieces 5 are arranged in a smaller number than the innumerable pieces 4 are arranged, they are expressed as a plurality of pieces as a comparison. The black piece can be formed, for example, by a cell used for solar power generation.

In this way, by further embedding a plurality of black pieces 5 made of black together with the fragments 4 in the interlayer film 3, the black pieces 5 that do not reflect light are embedded in addition to the fragments 4 that reflect light. , It is possible to provide a laminated glass 1 having a characteristic and unique appearance. At this time, by reducing the size and number of the black pieces 5 to be smaller than those of the pieces 4, the reflection of light by the pieces 4 is not hindered. Furthermore, the fact that 5 is arranged in a black color smaller than this among the innumerable pieces 4 in less than the pieces 4 gives an accent to the appearance of the laminated glass 1 as a whole. By forming the black piece 5 with cells used for solar power generation, for example, cells to be discarded can be reused, which can contribute to effective use of resources and the environment.

As is clear from FIG. 2, the fragment 4 or the black piece 5 has corners in the glass plate 2 (2a, 2b) direction. This corner is a pointed part. Since such sharp corners are oriented in the direction of the glass plate 2, the corners may damage the glass plate 2 and cause damage. However, since the fragments 4 and the black fragments 5 are embedded in the interlayer film 3, they do not come into contact with the glass plate. Therefore, the laminated glass 1 with built-in fragments is suitable when the fragments 4 and the black fragments 5 having such a sharp shape are arranged in the middle. As described above, burying means that the outer edges of the fragment 4 and the black piece 5 are completely buried in the interlayer film 3, and therefore, the interlayer film 3 is always provided between the fragment 4 or the black piece 5 and the glass plate 2. It means that it is intervening. In other words, the debris 4 or the black piece 5 is non-contact with the glass plate 2.

At this time, as the interlayer film 3, polyvinyl butyral (PVB), ethylene vinyl acetate resin (EVA), ionomer resin (SG (centriglas interlayer film)) or the like is used. General thermoplastic resins, thermosetting resins, ultraviolet curable resins, etc. can be used, and vinyl polymers, ethylene-vinyl monomer copolymers, styrene copolymers, polyurethane resins, fluororesins, acrylic resins, etc. can be used. Is preferably contained. In particular, it is preferable to use an SG film made of an ionomer resin as the interlayer film 3 because the transparency is high and the reflection of light by debris is not hindered. It is also preferable from the viewpoint of ensuring sufficient strength.

As is clear from FIG. 3, when the laminated glass 1 with built-in fragments according to the present invention is attached to the building body, the periphery of the laminated glass 1 (a pair of glass plates 2) is fitted into the frame body 6. Although FIG. 3 shows an example in which the three sides of the laminated glass 1 are fitted into the frame body 6, a frame body that surrounds all the sides may be used. As the frame body 6, a metal one can be used, but the material is not limited to this (for example, made of wood or resin). In FIG. 3, the fragment 4 and the black fragment 5 are omitted. As shown in FIG. 4, the frame body 6 has a holding portion 8 capable of receiving the thickness of the laminated glass 1, and the holding portion 8 extends toward the inside (center side) of the glass plate 2. A silicone gasket 9 is interposed between the holding portion 8 and the glass plate 2 and is closely fixed to the holding portion 8.

A light source body 7 is built in at least one side of the frame body 6 (the side in which the long side of the glass plate 2 is fitted in FIG. 3). The light source body 7 is intermittently or continuously arranged over one side of the frame body 6. The light source body 7 is, for example, an LED lamp, and when the light source body 7 emits light, the light is emitted in the direction of the fragment 4. That is, as is clear from FIG. 4, since the light source body 7 is blocked by the frame body 6 on three sides, the emitted light inevitably irradiates the direction of the glass plate 2, that is, the fragment 4. Will be done. In this way, the periphery of the pair of glass plates 2 is fitted into the frame body 6, and the light source body 7 built in at least one side of the frame body 6 irradiates the fragments 4 with no sunlight. It can provide light scattering even at night to improve the appearance. The distance from the light source body 7 to the edge of the laminated glass 1 is preferably about 10 mm. Further, in order to improve the appearance of the illumination from the light source body 7, it is preferable that the edge of the laminated glass 1 on the light source body 7 side is polished.

The method for producing the laminated glass 1 containing fragments according to the present invention as described above will be described in detail below. As a method for manufacturing the laminated glass 1 containing fragments, first, a fragment manufacturing step is performed (step S1). This fragment manufacturing process is a step of sharding a substance having light reflection characteristics and sieving to produce fragments having a certain size or larger. Specifically, the mirror glass is crushed with a rubber hammer or the like to break it into pieces, and the sieve is sieved using a sieve having a medium size (5 mm × 5 mm). At this time, the sieve is shaken horizontally 20 times. As a result, what remains on the sieve becomes a size larger than a certain size, and this becomes fragment 4.

Next, a black piece manufacturing step is performed (step S2). This black piece manufacturing process is a step of sharding a black substance and sieving it to produce a black piece 5 smaller than the piece 4. Specifically, the crushed cell used for photovoltaic power generation is sifted using a sieve having a fine mesh (3 mm × 3 mm). At this time, the sieve is shaken horizontally 20 times. Those that have passed through the sieve become smaller than a certain size, and this becomes the black piece 5. In this step, the black piece 5 is always smaller than the piece 4 because the sieve mesh is smaller than the old one used in the piece manufacturing process. Either the fragment manufacturing process or the black piece manufacturing process may be performed first. As described above, both the fragment 4 and the black fragment 5 can be easily formed into a certain size by sieving, and can be easily manufactured.

Next, a laminating step is performed. This laminating step is a step of arranging two layers of the interlayer film 3 between the pair of glass plates 2 and further arranging the fragments 4 and the black pieces 5 between them to form a laminated body. Specifically, first, one glass plate 2 is placed, and a sheet (film) -shaped interlayer film 3 is superposed on the glass plate 2. Then, the fragments 4 and the black fragments 5 are sprinkled (arranged) on it, and the interlayer film 3 is further overlaid on it. Finally, the second glass plate 2 is placed on it. As a result, the interlayer film 3 is arranged inside each of the two glass plates 2, and the fragments 4 and the black pieces 5 are further arranged inside the interlayer film 3. In other words, the laminate has a form in which a fragment 4 and a black piece 5 are arranged in the center, which are sandwiched by a two-layer interlayer film 3, and two glass plates 2 are arranged on the outside thereof. .. At this time, the interlayer film 3 has a thickness equal to or greater than the thickness of the fragment 4 and the black piece 5, respectively. When sprinkling the fragments 4 and the black pieces 5, the fragments 4 are ^{sprinkled at 700 g / m 2} and the black pieces 5 are sprinkled at 4 g / m ² .

Next, an bonding step is performed (step S4). This bonding step is a step in which the laminated body is evacuated and then heated to bond the pair of glass plates 2 to each other by the interlayer film 3. Specifically, the laminate is housed in a vacuum chamber and evacuated. As a result, even if bubbles are generated when the laminated body is formed, they can be removed. In particular, when the fragments 4 and the black pieces 5 are sprinkled on the lower sheet-like interlayer film and the sheet-like interlayer film is further superposed on the fragment-like interlayer film, a gap is formed and bubbles are likely to be generated. All can be removed by pulling. The evacuated laminate is heated by using an autoclave or the like, the pair of glass plates 2 are adhered by the interlayer film 3, and the fragments 4 and the black pieces 5 are embedded in the interlayer film 3. When the laminated glass 1 is manufactured in this way, the interlayer film 3 is melted and adhered by heating. Therefore, if the above-mentioned bubbles are present, they swell and burst when heated, but this can also be prevented by evacuation. ..

The laminated glass 1 with built-in fragments manufactured in this manner is sieved 20 times with a 5 mm mesh sieve in the fragment manufacturing process and 20 times with a 3 mm mesh sieve in the black fragment manufacturing process. , 700 g / m 2 and debris in the laminating ^process, because the black piece has undergone steps of 4g / m ² to distribution, and can be made well-balanced throughout the laminated glass reflection and absorption of light.

1: Laminated glass with built-in fragments 2: Pair of glass plates, 2a: Glass plate, 2b: Glass plate, 3: Intermediate film, 4: Fragments, 5: Black fragments, 6: Frame, 7: Light source, 8: Holding part, 9: Gasket

Claims (10)

A pair of glass plates bonded to each other via an interlayer film,
A laminated glass containing fragments, which is embedded in the interlayer film and includes innumerable fragments made of a substance having light reflection characteristics. A plurality of black pieces, which are embedded together with the fragments and are composed of black, are further provided in the interlayer film.
The laminated glass containing fragments according to claim 1, wherein the black pieces are smaller and smaller in number than the fragments. The laminated glass containing fragments according to claim 2, wherein the fragments or the black fragments have corners in the direction of the glass plate. The laminated glass containing fragments according to claim 1, wherein the fragments are made of mirror glass or metal. The laminated glass containing fragments according to claim 2, wherein the black piece is formed of a cell used for solar power generation. The laminated glass containing fragments according to any one of claims 1 to 5, wherein the interlayer film is an SG film made of an ionomer resin. A frame body in which the periphery of the pair of glass plates is fitted, and
The laminated glass containing fragments according to any one of claims 1 to 6, further comprising a light source body that is built in at least one side of the frame and irradiates the fragment direction. A fragment manufacturing process in which a substance having light reflection characteristics is fragmented and sieved to produce fragments of a certain size or larger.
A laminating step of arranging two layers of interlayer films between a pair of glass plates and further arranging the fragments between them to form a laminated body.
A method for producing a laminated glass containing fragments, which comprises a bonding step in which the laminated body is evacuated and then heated to bond the pair of glass plates to each other by the interlayer film. Further provided with a black piece manufacturing process in which a black substance is sharded and a black piece smaller than the shard is manufactured by sieving.
The method for producing a laminated glass containing fragments according to claim 8, wherein the black pieces are arranged together with the fragments between the two layers of the interlayer film in the laminating step. The sieving in the debris manufacturing process is sieved 20 times with a 5 mm sieve.
The sieving in the black piece manufacturing process is performed 20 times with a 3 mm sieve.
The method for producing a laminated glass containing fragments according to claim 9, wherein 700 g / m ² of the fragments and 4 g / m ^{2 of the black fragments are arranged in the laminating step.}

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