JP6993614B2 - Manufacturing method of glass resin laminate - Google Patents

Description

The present invention relates to a glass resin laminate formed by laminating a resin layer and a glass sheet, and a method for producing the same.

The glass resin laminate, which is made by laminating a resin layer and a glass sheet, has various characteristics such as high hardness, high durability, high airtightness, gas barrier property and high-class feeling derived from glass, and light weight derived from resin. It has various characteristics such as high impact resistance (see Patent Document 1). Therefore, the glass resin laminate is widely used not only as a panel material for electric / electronic devices such as flat panel displays, portable electronic devices, and solar cells, but also as a panel material for various vehicle structures and building structures. It's starting.

For example, a security gate installed at an entrance / exit of an office building or the like is provided with a flap door for opening / closing a passage (see Patent Document 2). In recent years, a glass resin laminate having excellent safety (impact resistance) and designability has tended to be used for this flap door.

Japanese Unexamined Patent Publication No. 2013-107245 Japanese Unexamined Patent Publication No. 2017-90880

When a glass resin laminate is used for the flap door of the security gate, it is installed in the gate with its end face exposed. Therefore, in order to improve the overall design of the flap door, it is necessary to improve not only the surface of the glass resin laminate but also the appearance quality of the end face.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a glass resin laminate capable of improving the appearance quality of an end face and a method for producing the same.

The present invention is for solving the above-mentioned problems, and in a method for manufacturing a glass-resin laminate in which a resin layer and a glass sheet are laminated via an adhesive layer, processing marks remain on the end faces of the resin layer. It is characterized by including a preparation step of preparing the glass resin laminate, a removal step of removing the processing mark from the end face, and a mirror surface processing step of performing a mirror surface processing on the end face.

As described above, after removing the processing marks remaining on the end face of the resin layer related to the glass resin laminate by the removing step, the end face is mirror-finished in the mirror surface processing step to obtain the appearance of the end face of the glass resin laminate. The quality can be greatly improved.

It is desirable that the preparatory step includes a cutting step of cutting a mother glass resin laminate formed by laminating a resin layer and a glass sheet via an adhesive layer to form the glass resin laminate. By cutting the mother glass resin laminate in which the resin layer and the glass sheet are laminated by the cutting step, the glass resin laminate can be efficiently formed into a desired shape.

The processing marks have streaks formed along the thickness direction of the glass resin laminate, and in the removing step, the removing tool is moved in a direction intersecting the streaks to form the resin layer. It is desirable to remove the processing marks from the end face. As a result, the streaks of the processing marks can be efficiently removed.

The remover preferably includes a cutting tool or may include a grinding tool. As a result, the processing marks remaining on the end face of the resin layer can be efficiently and surely removed.

Further, it is desirable that the method includes a polishing step of removing the second processing mark formed on the end face of the resin layer by the removing tool after the processing mark is removed by the removing step. As a result, the end face of the resin layer can be smoothed as much as possible.

Further, in the mirror surface processing step, it is desirable to heat the end surface of the resin layer with the flame of the burner. By heating and softening the end face of the resin layer in this way, the end face can be suitably mirrored.

In the above manufacturing method, the resin layer includes a first surface and a second surface, and the glass sheet includes a first glass sheet bonded to the first surface of the resin layer and the resin. The adhesive layer includes a second glass sheet bonded to the second surface of the layer, and the adhesive layer includes a first adhesive layer for bonding the first glass sheet to the first surface of the resin layer and the first adhesive layer. (Ii) A second adhesive layer for joining the glass sheet to the second surface of the resin layer is included, and the thickness of the resin layer is obtained by adding the thickness of the first glass sheet and the thickness of the second glass sheet. It is desirable that only the end face of the resin layer is heated by the flame of the burner in the mirror surface processing step.

According to such a configuration, the glass sheet is bonded to both the first surface and the second surface of the resin layer, and the central portion in the thickness direction of the glass resin laminate (between the first glass sheet and the second glass sheet). By mirroring only the end face of the resin layer located at), the appearance of the end face of the glass resin laminate can be efficiently improved in quality. That is, since the thickness of the resin layer is thicker than the thickness obtained by adding the thickness of the first glass sheet and the thickness of the second glass sheet, the appearance of the end face of the glass resin laminate is exclusively the quality of the end face of the resin layer. Will contribute. On the other hand, since the first glass sheet and the second glass sheet are thin, the quality of the end faces of the first glass sheet and the second glass sheet does not easily affect the appearance of the end faces of the glass resin laminate. Therefore, by mirroring only the end face of the resin layer, it is possible to efficiently improve the quality of the appearance of the end face in the glass resin laminate.

The present invention is for solving the above-mentioned problems, and in a glass resin laminated body in which a resin layer and a glass sheet are laminated via an adhesive layer, the thickness of the resin layer is the thickness of the glass sheet. It is thicker than that, and the end face of the glass sheet is a non-mirror surface, and the end face of the resin layer is a mirror surface. According to such a configuration, by making the end surface of the resin layer a mirror surface, it is possible to efficiently improve the quality of the appearance of the end surface in the glass resin laminate.

According to the present invention, it is possible to improve the appearance quality of the end face of the glass resin laminate.

It is a flowchart which shows the manufacturing method of the glass resin laminate. It is a side view which shows a part of the mother glass resin laminated body. It is a perspective view which shows the cutting apparatus. It is a top view which shows the preparation process. It is a top view of the glass resin laminated body formed by the preparation process. It is a partial side view which shows the end face of the glass resin laminated body formed by the preparation process. It is a top view which shows the chamfering process. It is a side view which shows the chamfering process. It is a side view which shows the chamfering process. It is a partial cross-sectional view which shows the glass resin laminated body after a chamfering process. It is a top view which shows the removal process. It is a side view which shows the removal process. It is a side view which shows the removal process. It is a side view which shows the polishing process. It is a side view which shows the polishing process. It is a top view which shows the mirror surface processing process. It is a side view which shows the mirror surface processing process. It is a side view which shows the mirror surface processing process.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 18 show an embodiment of a glass resin laminate and a method for producing the same according to the present invention.

As shown in FIG. 1, this method includes a preparation step S1, a chamfering step S2, a removing step S3, a polishing step S4, and a mirror surface processing step S5.

As shown in FIGS. 2 to 5, the preparation step S1 includes a cutting step of cutting the mother glass resin laminate 1 to form the glass resin laminate 2. As shown in FIG. 2, the mother glass resin laminate 1 is configured by joining the resin layer 3 and the glass sheets 4A and 4B with the adhesive layers 5A and 5B.

The resin layer 3 has a first surface 3a, a second surface 3b, and an end surface 3c formed between the first surface 3a and the second surface 3b. The resin layer 3 is composed of a resin plate in which the first surface 3a and the second surface 3b have substantially the same area. The thickness of the resin layer 3 is 1 mm or more and 50 mm or less, more preferably 3 mm or more and 20 mm or less, and most preferably 5 mm or more and 15 mm or less.

The resin layer 3 is made of polycarbonate, but is not limited to this, and is not limited to this, polymethacrylic acid methyl resin (PMMA), polyethylene terephthalate, polyetheretherketone (PEEK), polyamide, polyvinyl chloride, polyethylene, polypropylene, polyethylene na. It may be composed of various resin materials such as phthalate.

The glass sheets 4A and 4B include a first glass sheet 4A and a second glass sheet 4B. Each of the glass sheets 4A and 4B has a first surface 4a joined to each surface 3a and 3b of the resin layer 3, a second surface 4b located on the side opposite to the first surface 4a, and a first surface. It has an end surface 4c formed between the surface 4a and the second surface 4b.

As the glass sheets 4A and 4B, thinner plates than the resin layer 3 are preferably used. Further, it is preferable that the thickness of each of the glass sheets 4A and 4B, which is the sum of the thicknesses, is thinner than the thickness of the resin layer 3. The thickness of each of the glass sheets 4A and 4B is 1000 μm or less, preferably 50 μm or more and 700 μm or less, and most preferably 200 μm or more and 500 μm or less.

As the materials of the glass sheets 4A and 4B, silicate glass and silica glass are used, preferably borosilicate glass, soda lime glass, aluminosilicate glass and chemically strengthened glass, and most preferably non-alkali glass. Used. Here, the non-alkali glass is a glass that does not substantially contain an alkaline component (alkali metal oxide), and specifically, a glass having a weight ratio of an alkaline component of 3000 ppm or less. be. The weight ratio of the alkaline component in the present invention is preferably 1000 ppm or less, more preferably 500 ppm or less, and most preferably 300 ppm or less.

The glass sheets 4A and 4B can be formed by using a known float method, rollout method, slot down draw method, redraw method, or the like, but it is preferable that the glass sheets 4A and 4B are formed by the overflow down draw method.

The adhesive layers 5A and 5B include a first adhesive layer 5A for joining the resin layer 3 and the first glass sheet 4A, and a second adhesive layer 5B for joining the resin layer 3 and the second glass sheet 4B. Each of the adhesive layers 5A and 5B is between the first surface 5a in contact with the resin layer 3, the second surface 5b in contact with the glass sheets 4A and 4B, and the first surface 5a and the second surface 5b. It includes an end face 5c to be formed. The thickness of each of the adhesive layers 5A and 5B is preferably 1 μm or more and 1000 μm or less.

As the adhesive layers 5A and 5B, for example, ethylene vinyl acetate copolymer resin (EVA), polyvinyl butyral resin (PVB), and UV curable resin can be preferably used, but in addition, an acrylic pressure-sensitive adhesive and a urethane-based adhesive can be used. Agents, silicone adhesives, rubber adhesives, UV curable acrylic adhesives, UV curable epoxy adhesives, thermosetting epoxy adhesives, thermosetting melamine adhesives, thermosetting phenol adhesives Agents and the like can be used.

FIG. 3 shows a cutting device 6 used in the preparation step S1. In this embodiment, an abrasive water jet processing device is exemplified as the cutting device 6. The cutting device 6 includes a fixed base 7 on which the mother glass resin laminate 1 is installed, an injection nozzle 8, a high-pressure water supply device 9 that supplies high-pressure water W1 to the injection nozzle 8, and abrasive grains AG on the injection nozzle 8. It mainly includes a abrasive grain supply silo 10 to be supplied.

A cushioning material 11 is arranged on the fixed base 7. The cushioning material 11 is made of a material such as foamed polyethylene in a sheet shape. The mother glass resin laminate 1 to be cut is installed on the cushioning material 11.

The injection nozzle 8 is arranged above the fixing base 7 in a state of facing downward. The injection nozzle 8 is configured to be movable in the vertical direction and the horizontal direction by a drive mechanism. The injection nozzle 8 directs the high-pressure mixed water W2 formed by mixing the high-pressure water W1 supplied from the high-pressure water supply device 9 and the abrasive grains AG supplied from the abrasive grain supply silo 10 toward the mother glass resin laminate 1. And spray.

In the preparation step S1, as shown in FIGS. 3 and 4, the high-pressure mixed water W2 is injected from the injection nozzle 8 and the high-pressure mixed water W2 is passed through the mother glass resin laminate 1. In this state, the injection nozzle 8 is moved and the high-pressure mixed water W2 is scanned along the planned cutting line CL set in the mother glass resin laminate 1 to cut the mother glass resin laminate 1. As a result, as shown in FIG. 5, the glass resin laminate 2 having a predetermined shape is formed. Similar to the mother glass resin laminate 1, the glass resin laminate 2 is composed of a resin layer 3, glass sheets 4A and 4B, and adhesive layers 5A and 5B.

In the present embodiment, the glass resin laminate 2 used for the flap door of the security gate installed at the entrance / exit of an office building or the like is exemplified, but the use of the glass resin laminate 2 is not limited to this. .. The glass resin laminate 2 is formed in a rectangular shape and has a recess 2a on one side thereof.

FIG. 6 shows an end surface 2b (cut surface) of the glass resin laminate 2 immediately after the preparation step S1. The end face 2b of the glass resin laminate 2 is composed of the end face 3c of the resin layer 3, the end faces 4c of the glass sheets 4A and 4B, and the end faces 5c of the adhesive layers 5A and 5B. The high-pressure mixed water W2 of the cutting device 6 penetrates the mother glass resin laminate 1 on the end face 2b, so that a processing mark (hereinafter referred to as “first processing mark”) M1 called “Hakime” remains. As shown in FIG. 6, the first processing mark M1 is a line formed linearly along the thickness direction TD of the glass resin laminate 2. The first processing mark M1 includes a plurality of streaks over the entire circumference of the end surface 2b of the glass resin laminate 2.

As shown in FIGS. 7 to 9, in the chamfering step S2, the end face 2b of the glass resin laminate 2 is machined over the entire circumference by the grinding tool 12. As shown in FIGS. 7 and 8, the grinding tool 12 is composed of a rotary tool having a grinding surface 12a having a V-shaped cross section. As the grinding tool 12, a grinding wheel such as a diamond grindstone is preferably used. In the chamfering step S2, a part of the end surface 2b is ground by pressing the grinding surface 12a against the end surface 2b of the glass resin laminate 2 while rotating the grinding tool 12 around its axis (see FIG. 9). ).

FIG. 10 shows a part of the glass resin laminate 2 after the chamfering step S2. In the chamfering step S2, the end surface 3c of the resin layer 3 has a first end surface 3c1 formed in the central region of the thickness direction TD and a second end surface connected to each end of the first end surface 3c1 in the thickness direction TD. 3c2 and 3c2 are formed. The first end surface 3c1 is a portion that has not been ground by the grinding tool 12 in the chamfering process S2. Therefore, the first processing mark M1 formed in the preparation step S1 remains on the first end surface 3c1. The second end surface 3c2 is an inclined surface newly formed by the chamfering step S2. The first end surface 3c1 and the second end surface 3c2 are in a state of protruding (exposed) from the end surfaces 4c of the glass sheets 4A and 4B.

As shown in FIG. 10, a new end face 4c is formed on each of the glass sheets 4A and 4B by grinding the grinding tool 12. Each end surface 4c is an inclined surface formed flush with the second end surface 3c2 of the resin layer 3. Similarly, in each of the adhesive layers 5A and 5B, a new inclined end face 5c is formed by the grinding process of the grinding tool 12.

As shown in FIG. 11, in the removing step S3, the first processing mark M1 remaining on the first end surface 3c1 of the resin layer 3 is removed by the removing tool 13. As the remover 13, for example, a cutting tool 14 or a grinding tool 15 is used.

As the cutting tool 14, for example, a tool provided with a cemented carbide blade is used, but the cutting tool 14 is not limited to this configuration. In the removal step S3, in a state where the carbide blade of the cutting tool 14 is in contact with the first end surface 3c1 of the resin layer 3, the cutting tool 14 is crossed with the streaks of the first machining mark M1, for example, the thickness direction. The first machining mark M1 is removed by moving the CD in a direction orthogonal to the TD (hereinafter referred to as “circumferential direction”) (see FIG. 11).

As the grinding tool 15, an air hand grinder having a flap foil is preferably used. As the flap foil, a foil having a plurality of diamond sheets or a foil in which a plurality of diamond sheets and a plurality of SiC sheets are alternately arranged is preferably used. The grinding tool 15 is used when a portion difficult to be machined by the cutting tool 14, for example, a recess 2a is machined.

As shown in FIGS. 12 and 13, in the removal step S3, the flap foil of the grinding tool 15 is rotated and brought into contact with the first end surface 3c1 of the resin layer 3 constituting the recess 2a, and the flap foil is first processed. It is moved in the direction intersecting the streaks of the trace M1 (for example, the circumferential direction CD). As a result, the first machining mark M1 is removed from the first end surface 3c1 corresponding to the recess 2a.

When the removal step S3 is performed as described above, the first machining mark M1 formed in the preparation step S1 is removed, but the cutting tool 14 and the grinding tool 15 are machined on the first end surface 3c1 of the resin layer 3. A second processing mark M2 is newly formed. As shown in FIG. 13, the second machining mark M2 includes a plurality of lines having a smaller length dimension than the first machining mark M1 formed in the preparation step S1. The streaks related to the second machining mark M2 are formed on the first end surface 3c1 along the moving direction of the removing tool 13 (cutting tool 14 and grinding tool 15), that is, the circumferential direction CD.

As shown in FIGS. 14 and 15, in the polishing step S4, the second machining mark M2 is removed from the first end surface 3c1 of the resin layer 3 by the polishing tool 16. As the polishing tool 16, an air hand grinder having a foil made of a non-woven fabric is preferably used. As the foil, Polylite (registered trademark) foil is preferably used.

In the polishing step S4, the foil of the polishing tool 16 is rotated and brought into contact with the first end surface 3c1 and moved along the circumferential direction CD. As a result, the first end surface 3c1 is polished over its entire circumference. When the polishing step S4 is performed, the second machining mark M2 is removed, but a third machining mark M3 having a size smaller than that of the second machining mark M2 is formed on the first end surface 3c1 by the polishing process. (See FIG. 15). The third processing mark M3 contains a plurality of extremely minute irregularities.

As shown in FIGS. 16 to 18, in the mirror surface processing step S5, the flames F1 and F2 of the burners 17a and 17b heat the first end surface 3c1 and the second end surface 3c2 of the resin layer 3 to mirrorize (gloss) the resin layer 3. .. Here, the "mirror surface" means a surface having an arithmetic mean roughness Ra of 300 nm or less. The "non-mirror surface" means a surface having an arithmetic mean roughness Ra of more than 300 nm.

The mirror surface processing step S5 includes a first mirror surface processing step by the first flame F1 of the first burner 17a and a second mirror surface processing step by the second flame F2 of the second burner 17b.

As shown in FIG. 17, in the first mirror surface processing step, the first end surface 3c1 and the second end surface 3c2 of the resin layer 3 are sequentially heated over the entire circumference by the first flame F1 of the first burner 17a. That is, the first flame F1 of the first burner 17a is brought into contact with the first end surface 3c1 and the second end surface 3c2 to soften the respective end surfaces 3c1 and 3c2. Due to this softening, the first end surface 3c1 becomes a mirror surface from which the third processing mark M3 has been removed. Similarly, the second end surface 3c2 is also mirrored by softening. By moving the first burner 17a in the circumferential direction CD while repeating this operation, the first end surface 3c1 and the second end surface 3c2 can be mirrored over the entire circumference (entire surface) thereof. The moving speed of the first burner 17a is preferably 0.3 m / min or more and 10 m / min or less.

The first flame F1 of the first burner 17a has a width dimension D1 (maximum width). It is desirable that the width dimension D1 of the first flame F1 is set smaller than the thickness dimension of the resin layer 3.

As shown in FIG. 18, in the second mirror surface processing step, after the first mirror surface processing step, the first end surface 3c1 of the resin layer 3 is heated over the entire circumference by the second flame F2 of the second burner 17b. .. The second flame F2 has a width dimension D2 smaller than the width dimension D1 of the first flame F1. Also in the second mirror surface processing step, the second flame F2 is brought into contact with the first end surface 3c1 to soften the first end surface 3c1. By the second mirror surface processing step, the first end surface 3c1 of the resin layer 3 becomes a further smoothed mirror surface. The moving speed of the second burner 17b is preferably 0.3 m / min or more and 10 m / min or less.

It is not necessary to execute the mirror surface processing step S5 on the end faces 4c of the glass sheets 4A and 4B. That is, the end faces 4c of the glass sheets 4A and 4B are non-mirror surfaces. Since the thickness dimension of the glass sheets 4A and 4B is smaller than the thickness dimension of the resin layer 3, the ratio of the end face 4c of each glass sheet 4A and 4B to the end face 2b of the glass resin laminate 2 is small. In addition, the end faces 4c of the glass sheets 4A and 4B are ensured to have sufficient quality from the viewpoint of strength by the chamfering step S2. Therefore, even if the end faces 4c of the glass sheets 4A and 4B are non-mirror surfaces, the appearance of the end faces 2b of the glass resin laminate 2 is not spoiled.

According to the method for manufacturing the glass resin laminate 2 according to the present embodiment described above, the first processing mark M1 remaining on the glass resin laminate 2 prepared in the preparation step S1 is removed from the resin layer 3 by the removal step S3. After the removal, the first end surface 3c1 and the second end surface 3c2 of the resin layer 3 are mirror-finished by the mirror surface processing step S5, so that the appearance of the end surface 2b of the glass resin laminate 2 can be made high quality.

The present invention is not limited to the configuration of the above embodiment, and is not limited to the above-mentioned action and effect. The present invention can be modified in various ways without departing from the gist of the present invention.

In the above embodiment, in the mirror surface processing step S5, an example in which the end faces 3c (first end face 3c1 and second end face 3c2) of the resin layer 3 are heated by the flames F1 and F2 of the burners 17a and 17b is shown. Is not limited to this configuration. In the mirror surface processing step S5, only the first end surface 3c1 of the resin layer 3 is heated by the first flame F1 of the first burner 17a, and the second end surface 3c2 of the resin layer 3 by the second flame F2 of the second burner 17b is heated. Heating may be omitted. In this case, by appropriately adjusting the angle of the grinding surface 12a of the grinding tool 12 used in the chamfering step S2, the width of the TD in the thickness direction of the second end surface 3c2 is made as small as possible, and the width of the first end surface 3c1 is reduced as much as possible. It is preferable to increase the width as much as possible. If the width of the second end surface 3c2 is reduced, the influence on the appearance of the end surface 2b of the glass resin laminate 2 is small even if it is not mirrored.

In the above embodiment, in the mirror surface processing step S5, an example in which the end faces 3c (first end face 3c1 and second end face 3c2) of the resin layer 3 are heated by the flames F1 and F2 of the burners 17a and 17b is shown. Is not limited to this configuration. In the mirror surface processing step S5, a surface treatment agent may be applied to the end face 3c and the end face 3c may be melted to make a mirror surface. As the surface treatment agent, a solvent such as dichloromethane, chloroform, tetrahydrofuran, ethyl acetate and the like can be preferably used.

In the above embodiment, an example of cutting the mother glass resin laminate 1 by a cutting device 6 including a water jet processing device is shown in the preparation step S1, but the present invention is not limited to this, and for example, an end mill or a foil cutter (circular saw) is shown. The glass resin laminate 2 may be cut out from the mother glass resin laminate 1 by using a cutting tool such as the above. When the mother glass resin laminate 1 is cut by the foil cutter, the first processing mark M1 having the streaks inclined with respect to the thickness direction TD remains on the cut surface. Even in such a case, the removing tool 13 (cutting tool 14 or grinding tool 15) is moved in the direction intersecting the streaks of the first machining mark M1 (for example, the circumferential direction CD) (removal step S3). , The first processing mark M1 can be efficiently removed.

In the above embodiment, by cutting the mother glass resin laminate 1 in the preparation step S1, the glass resin laminate 2 in which the first processing mark M1 remains on the end surface 2b (first end surface 3c1) is formed. However, the present invention is not limited to this configuration. For example, in the preparation step S1, the glass resin laminate 2 includes a resin layer 3 (resin plate) cut from a mother resin plate into a predetermined shape, and glass sheets 4A and 4B having a predetermined shape cut from the mother glass sheet. May be configured by joining the adhesive layers 5A and 5B. Also in this case, the processing marks formed on the end surface 3c of the resin layer 3 when the mother resin plate is cut can be removed, and the end surface 3c can be mirrored.

In the above embodiment, in the chamfering step S2, an example in which the end surface 2b of the glass resin laminate 2 is processed by using a grinding tool 12 composed of a rotary tool having a grinding surface 12a having a V-shaped cross section. However, the present invention is not limited to this configuration. For example, as the grinding tool 12, a disc grinder may be used to process the end face 2b of the glass resin laminate 2.

1 Mother glass resin laminate 2 Glass resin laminate 3 Resin layer 3a First surface of resin layer 3b Second surface of resin layer 3c End surface of resin layer 3c1 First end surface of resin layer 3c2 Second end surface of resin layer 4A 1st glass sheet 4B 2nd glass sheet 4c End face of glass sheet 5A 1st adhesive layer 5B 2nd adhesive layer 13 remover 14 cutting tool 15 grinding tool 17a 1st burner 17b 2nd burner F1 1st flame F2 2nd Flame S1 Preparation process S3 Removal process S4 Polishing process S5 Mirror surface processing process M1 First processing mark M2 Second processing mark TD Thickness direction

Claims (7)

In a method for manufacturing a glass resin laminate in which a resin layer and a glass sheet are laminated via an adhesive layer,
A preparatory step for preparing the glass resin laminate in which processing marks remain on the end face of the resin layer, a removing step for removing the processing marks from the end face, and a mirror surface processing step for performing mirror surface processing on the end face are provided. ,
A method for producing a glass resin laminate, which comprises heating the end face of the resin layer with a flame of a burner in the mirror surface processing step . The glass resin according to claim 1, wherein the preparatory step includes a cutting step of cutting a mother glass resin laminate formed by laminating a resin layer and a glass sheet via an adhesive layer to form the glass resin laminate. Method for manufacturing a laminate. The processing marks have streaks formed along the thickness direction of the glass resin laminate.
The method for producing a glass resin laminate according to claim 1 or 2, wherein in the removing step, the processing mark is removed from the end face of the resin layer by moving the removing tool in a direction intersecting the streaks. The method for manufacturing a glass resin laminate according to claim 3, wherein the removing tool includes a cutting tool. The method for manufacturing a glass resin laminate according to claim 3, wherein the removing tool includes a grinding tool. The method according to any one of claims 3 to 5, further comprising a polishing step of removing the second processing mark formed on the end face of the resin layer by the removing tool after the processing mark is removed by the removing step. The method for manufacturing a glass resin laminate according to the above method. The resin layer comprises a first surface and a second surface.
The glass sheet includes a first glass sheet bonded to the first surface of the resin layer and a second glass sheet bonded to the second surface of the resin layer.
The adhesive layer includes a first adhesive layer for joining the first glass sheet to the first surface of the resin layer and a second adhesive for joining the second glass sheet to the second surface of the resin layer. Including layers
The thickness of the resin layer is thicker than the thickness of the first glass sheet plus the thickness of the second glass sheet.
The method for producing a glass resin laminate according to any one of claims 1 to 6, wherein in the mirror surface processing step, only the end surface of the resin layer is heated by the flame of the burner.

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