JP6818256B2 - Manufacturing method of glass roll - Google Patents

Description

The present invention relates to a method for producing a glass roll formed by winding a strip-shaped glass film.

As is well known, thin display devices such as liquid crystal displays and organic EL displays, and mobile devices such as smartphones and tablet PCs, which have rapidly become widespread in recent years, are required to be lightweight. Therefore, as the glass substrate used in these devices, a glass film thinned into a film is being used. This glass film has a substantially rectangular shape at the stage of the final product, but is treated as having a strip shape at the stage of the manufacturing process and various processing processes before that.

Since this type of glass film has appropriate flexibility, it should be in the form of a glass roll wound around a core or the like in a roll shape in consideration of convenience during storage and transportation. Is customary. Therefore, if the glass film is in the form of a glass roll, not only is it excellent in storage stability, but also it is possible to easily cut out a large number of glass films having a substantially rectangular shape or the like.

On the other hand, this type of glass film has low mechanical strength and is easily damaged or damaged, so care must be taken when handling it as it is. That is, when the glass film is wound into a roll to produce a glass roll, the wound glass films may come into contact with each other and cause damage such as scratches. Therefore, it is widely practiced to manufacture a glass roll by winding a strip-shaped protective film made of a resin or the like on a glass film in a roll shape.

For example, in Patent Document 1, a glass film (glass ribbon) and a protective film (resin film) are bonded together by a nip roller to form a laminated film (glass / resin composite), and the laminated film is wound into a roll. Discloses a method of manufacturing a glass roll.

In this manufacturing method, a laminated film is formed by pulling out a glass film from a molded product by an overflow down draw method (fusion method), pulling out a protective film, and sandwiching the two by two nip rollers. A roll of the laminated film is produced by winding the laminated film by a winding core. The two nip rollers are arranged between the molded body and the winding core (see, for example, FIGS. 1 to 3 of the same document).

International Publication No. 2009/05/7460

In the conventional method for manufacturing a glass roll, two nip rollers are used when the protective film is attached to the glass film, which causes the manufacturing equipment to become complicated. Further, since the two nip rollers are arranged at positions away from the core for winding the glass film, the efficiency of various operations such as replacement of the protective film and removal of the manufactured glass roll is reduced.

When a glass film is used for electronic components, it is necessary to secure surface accuracy by using either the front or back surface of the glass film as a guarantee surface in order to form a precision element. It is necessary to eliminate contact with rollers and the like as much as possible. However, if two nip rollers are used when the protective film is attached to the glass film, the nip rollers may come into contact with the guarantee surface. Further, it is conceivable to reduce the influence of the contact of the nip roller by attaching the protective film to the guarantee surface side, but after the protective film is peeled off, the adhesive or the like may remain on the guarantee surface, so that the guarantee surface It is not preferable to attach the protective film to the side, and it is desirable to attach the protective film to the non-guaranteed surface side.

The present invention has been made in view of the above circumstances, and is a method for manufacturing a glass roll capable of simplifying an apparatus configuration when a protective film is laminated on a glass film and winding it, and improving workability. The purpose is to provide. Another object of the present invention is to provide a method for manufacturing a glass roll that enables the surface accuracy of the guaranteed surface side to be ensured even if the protective film is attached to the non-guaranteed surface side of the glass film for electronic component applications. And.

The present invention is for solving the above-mentioned problems, and a strip-shaped protective film having an adhesive surface is pulled out from a protective film roll, and the protective film is laminated on a strip-shaped glass film and wound into a roll to form glass. In the method of manufacturing the roll, the glass film supply step of feeding the glass film in a predetermined direction, the protective film supply step of bringing the protective film drawn from the protective film roll into contact with the glass film, and the protective film A winding step of winding the stacked glass films by a winding core is provided, and in the protective film supply step, the glass film and the protective film are wound by a guide roller for guiding the protective film and the winding core. It is characterized by sandwiching.

According to such a configuration, in the protective film supply process, the protective film can be surely brought into contact with the glass film by sandwiching the glass film and the protective film between the guide roller and the core of the glass film. As described above, in this method, since the protective film is brought into contact with the glass film by using the core of the glass film, the configuration of the guide roller can be simplified as much as possible. Further, as the guide roller is arranged close to the winding core, the protective film roll can be arranged in the vicinity of the glass roll. As a result, the glass roll collection work, the protective film roll replenishment / replacement work, and the maintenance work can be efficiently performed.

In this method, it is desirable that the guide roller is supported by a support mechanism so as to move according to an increase in the outer diameter of the glass roll wound around the winding core. In this case, it is desirable that the support mechanism includes a support member that rotatably supports the guide roller and a support shaft that rotatably supports the support member.

The outer diameter of the glass roll is expanded by winding the glass film by rotating the winding core during the manufacturing process. In this method, the guide roller moves according to the expansion of the outer diameter of the glass roll, so that the glass roll can be manufactured without applying an excessive pressing force to the glass film.

In the present method, the glass film has a first surface as a guaranteed surface and a second surface as a non-guaranteed surface, and the protective film supply step uses the adhesive surface of the protective film. It is preferable to bring it into contact with the second surface.

In the case of glass film for electronic parts, even if the guide roller applies pressing force to the core, the first surface (guarantee surface) on the side where the protective film of the glass film is not attached is wound first. Since it is pressed against the winding core through the protective film laminated on the glass film, it is the protective film that comes into contact with the guarantee surface, and it is possible to prevent the surface accuracy of the guarantee surface from deteriorating.

According to the method for manufacturing a glass roll according to the present invention, it is possible to simplify the apparatus configuration when the protective film is laminated on the glass film and wind it up, and to improve the workability. In addition, the surface accuracy of the glass film can be ensured.

It is a perspective view of a glass roll. It is a side view which shows the manufacturing method of the glass roll which concerns on 1st Embodiment. It is a top view which shows a part of the protective film supply device. It is a side view which shows the manufacturing method of the glass roll which concerns on 2nd Embodiment. It is a top view which shows a part of the protective film supply device. It is a side view which shows the manufacturing method of the glass roll which concerns on 3rd Embodiment. It is a side view which shows the manufacturing method of the glass roll which concerns on 4th Embodiment.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. 1 to 3 show the first embodiment of the method for producing a glass roll according to the present invention.

As shown in FIG. 1, the glass roll 1 is obtained by stacking a strip-shaped protective film 3 on a strip-shaped glass film 2 and winding it around a winding core 4 in a roll shape. The glass film 2 has a first surface 2a and a second surface 2b that are in a front-to-back relationship. In the present embodiment, when the glass roll 1 is used for electronic component applications, the first surface 2a is a guaranteed surface and the second surface 2b is a non-guaranteed surface. The guaranteed surface is the surface on the product side on which the element or the like is formed, and the surface properties are guaranteed, whereas the non-guaranteed surface does not have to guarantee the surface properties to the extent of the guaranteed surface. It is a face. The glass roll 1 is configured such that the first surface 2a of the glass film 2 is on the inside and the second surface 2b is on the outside. When the glass roll 1 is used for applications where surface accuracy is not particularly required, it is not necessary to distinguish between the guaranteed surface and the non-guaranteed surface described above.

The thickness of the glass film 2 is 500 μm or less, preferably 10 μm or more and 300 μm or less, and most preferably 30 μm or more and 200 μm or less.

As the material of the glass film 2, silicate glass and silica glass are used, preferably borosilicate glass, sodalime glass, aluminosilicate glass, and chemically strengthened glass are used, and most preferably non-alkali glass is used. .. By using non-alkali glass as the glass film 2, a chemically stable glass can be obtained. 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. is there. 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 film 2 can be formed by a known float method, rollout method, slot down draw method, redraw method, or the like, but it is preferably formed by the overflow down draw method.

One surface 3a of the protective film 3 is an adhesive surface. The adhesive surface comes into contact with the second surface 2b of the glass film 2. It is desirable that the adhesive strength of the adhesive surface is set so that it can be peeled off from the glass film 2 after the glass roll 1 is subjected to manufacturing-related processing of various devices. This adhesive strength is preferably 0.001 N / 25 mm or more and 1.5 N / 25 mm or less, but is not limited to this range. The thickness of the protective film 3 is preferably 10 μm or more and 1000 μm or less, more preferably 20 μm or more and 500 μm or less. The width of the protective film 3 in the present embodiment is smaller than the width of the glass film 2, but is not limited to this, and may be equal to or larger than the width of the glass film 2.

Examples of the material of the protective film 3 include ionomer film, polyethylene film, polypropylene film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, polyester film, polycarbonate film, polystyrene film, polyacrylonitrile film, and vinyl ethylene acetate. Uses polymer film, ethylene-vinyl alcohol copolymer film, ethylene-methacrylic acid copolymer film, nylon (registered trademark) film (polyamide film), polyimide film, organic resin film such as cellophane (synthetic resin film), etc. Therefore, it is preferable to use a polyethylene terephthalate film (PET film).

In this embodiment, the winding core 4 has a hollow cylindrical shape, but may have a solid cylindrical shape. The material of the winding core 4 is not particularly limited, but for example, metal such as aluminum alloy, stainless steel, manganese steel, carbon steel, phenol resin, urea resin, melamine resin, unsaturated polyester resin, epoxy resin, etc. Thermocurable resins such as polyurethane and girial terephthalate resin, thermoplastic resins such as polyethylene, polypropylene, polystyrene, AS resin, ABS resin, methacrylic resin, vinyl chloride, or glass fibers in these thermocurable resins and thermoplastic resins. Reinforced plastic mixed with reinforcing fibers such as carbon fibers and paper tubes can be used.

FIG. 2 shows a manufacturing apparatus 5 for the glass roll 1. The manufacturing apparatus 5 includes a base material glass roll 1A made of a glass film 2 as a base material, a transport device 6, a protective film supply device 7, and the above-mentioned glass roll 1.

The base glass roll 1A is formed by winding the glass film 2 with the winding core 4A. The core 4A of the base glass roll 1A and the core 4 of the glass roll 1 are arranged at a predetermined interval. In the present embodiment, the base glass roll 1A and the glass roll 1 are connected by a roll-to-roll method. That is, the glass film 2 wound around the winding core 4A is drawn out from the base glass roll 1A and then wound into a roll by the winding core 4 related to the glass roll 1.

The transport device 6 includes, but is not limited to, a belt conveyor. The transport device 6 guides the glass film 2 pulled out from the base glass roll 1A on the upstream side to the winding core 4 on the downstream side by driving the endless belt-shaped belt 6a.

The protective film supply device 7 is arranged in the vicinity of the glass roll 1. The protective film supply device 7 includes a protective film roll 8, a guide roller 9, and a support mechanism 10 for the guide roller 9.

The protective film roll 8 is a strip-shaped protective film 3 wound in a roll shape by a winding core 8a. The protective film roll 8 is arranged above the glass roll 1, but is not limited to this configuration. The protective film roll 8 may be provided at a position on the downstream side or a position below the glass roll 1.

The guide roller 9 is composed of one roller. The guide roller 9 is configured to sandwich the glass film 2 and the protective film 3 together with the winding core 4 of the glass roll 1. The guide roller 9 is arranged above the winding core 4 of the glass roll 1, but is not limited to this position. The roller surface 9a of the guide roller 9 is preferably composed of a cushioning material, but is not limited to this configuration. The cushioning material is composed of rubber or other elastic body.

The support mechanism 10 includes a support member 11 that rotatably supports the guide roller 9, and a support shaft 12 that rotatably supports the support member 11.

As shown in FIG. 3, the support member 11 is composed of a pair of elongated members. One end of each support member 11 rotatably supports the shaft portion 9b of the guide roller 9. The other end of each support member 11 is fixed to the support shaft 12. The support shaft 12 supports the support member 11 and is rotatably supported around its center by a structure such as a support base.

The guide roller 9 comes into contact with the upper part of the glass roll 1 with an appropriate pressing force by the moment acting around the support shaft 12 via the support member 11. When the guide roller 9 comes into contact with the upper part of the glass roll 1, the guide roller 9 maintains contact with the glass roll 1 due to its own weight. The guide roller 9 is supported by the support mechanism 10 so as to move following the expansion of the outer diameter of the glass roll 1. That is, the guide roller 9 gradually moves from the position shown by the solid line in FIG. 2 to the position shown by the alternate long and short dash line in accordance with the expansion of the outer diameter of the glass roll 1.

Hereinafter, a method of manufacturing the glass roll 1 by the above-mentioned manufacturing apparatus 5 will be described. This method includes a glass film supply step, a protective film supply step, and a winding step.

In the glass film supply step, the glass film 2 is pulled out from the base glass roll 1A and is conveyed downstream by the conveying device 6.

In the protective film supply step, the protective film 3 is pulled out from the protective film roll 8 as the winding core 8a rotates. The guide roller 9 in the protective film supply device 7 is in contact with a part (upper portion) of the glass roll 1, and at this position, the protective film 3 is brought into contact with the second surface 2b of the glass film 2. More specifically, by sandwiching the protective film 3 and the glass film 2 between the core 4 of the glass roll 1 and the guide roller 9, one surface 3a (adhesive surface) of the protective film 3 is the second of the glass film 2. It is attached to the second surface 2b.

In the winding step, the glass film 2 on which the protective film 3 is laminated through the protective film supply step is immediately wound by the rotation of the winding core 4. As a result, the glass roll 1 is formed around the winding core 4. The outer diameter of the glass roll 1 is increased in accordance with the rotation of the winding core 4.

The guide roller 9 of the protective film supply device 7 moves following the expansion of the outer diameter of the glass roll 1. The support member 11 of the support mechanism 10 rotates (clockwise) around the support shaft 12 in order to move the guide roller 9 (see the alternate long and short dash line in FIG. 2).

When the glass film 2 having a predetermined length is wound around the winding core 4, the winding process is completed and the glass roll 1 is completed.

According to the method for manufacturing the glass roll 1 according to the present embodiment described above, in the protective film supply step, the glass film 2 and the protective film 3 are formed by the guide roller 9 of the protective film supply device 7 and the core 4 of the glass roll 1. The protective film 3 can be reliably brought into contact with the glass film 2 by sandwiching the. As described above, in this method, since the protective film 3 is brought into contact with the glass film 2 by using the core 4 of the glass roll 1, it is sufficient to use only one guide roller 9. That is, the configuration of the guide roller 9 can be simplified as much as possible. Further, the protective film roll 8 is arranged near the glass roll 1 according to the position of the guide roller 9. As a result, the collection work of the glass roll 1, the replenishment / replacement work of the protective film roll 8, and the maintenance work can be efficiently performed. When the glass roll 1 is used for electronic components, even if the guide roller 9 applies a pressing force to the winding core 4, the first surface (guaranteed surface) 2a of the glass film 2 is formed on the previously wound glass film 2. Since it is pressed against the winding core 4 via the stacked protective films 3, it is the protective film 3 that the first surface 2a comes into contact with, and it is necessary to prevent the surface accuracy of the first surface 2a from deteriorating. Can be done.

4 and 5 show a second embodiment of the present invention. In the present embodiment, the configuration of the protective film supply device 7 is different from that of the first embodiment.

In the present embodiment, the guide roller 9 is located below the winding core 4 and is in contact with the lower part of the glass roll 1. The support mechanism 10 includes a support member 11 of the guide roller 9, a support shaft 12, and a counterweight 13. The support member 11 supports the guide roller 9 at one end and the counterweight 13 at the other end. The support shaft 12 rotatably supports the support member 11 in the middle of the support member 11.

In the present embodiment, the guide roller 9 comes into contact with the glass roll 1 with an appropriate pressing force due to the moment around the support shaft 12 acting on the guide roller 9 via the support member 11 and the counterweight 13.

The method for producing the glass roll 1 according to the present embodiment is the same as in the first embodiment, the glass roll 1 is manufactured by going through the glass film supply step, the protective film supply step, and the winding step.

FIG. 6 shows a third embodiment of the present invention. In the present embodiment, a part of the configuration of the protective film supply device 7 is different from that of the first embodiment. The protective film roll 8 according to the present embodiment is obtained by stacking a separator 14 on one surface 3a (adhesive surface) of the protective film 3 and winding it in a roll shape by a winding core 8a. A winding core 15 for winding the separator 14 peeled off from the protective film 3 is arranged near the protective film roll 8. The configuration of the guide roller 9 and the support mechanism 10 in this embodiment is the same as that in the first embodiment.

The method for producing a glass roll according to the present embodiment includes a glass film supply step, a protective film supply step, and a winding step, as in each of the above embodiments. In the protective film supply step, the protective film 3 is pulled out from the protective film roll 8 and the separator 14 is peeled off from the protective film 3. The peeled separator 14 is wound by the winding core 15. One surface 3a (adhesive surface) of the drawn protective film 3 comes into contact with the second surface 2b of the glass film 2 via the guide roller 9.

FIG. 7 shows a fourth embodiment of the present invention. The manufacturing apparatus 5 according to the present embodiment manufactures the glass roll 1 by winding the glass film 2 continuously formed by the overflow down draw method.

The manufacturing apparatus 5 conveys the glass film 2 in the horizontal direction after the direction change, the molding unit 16 for molding the glass film 2, the direction changing unit 17 for changing the traveling direction of the glass film 2 from the lower vertical direction to the horizontal direction. The horizontal transport portion 18, the cutting portion 19 that cuts the ear portion 2c at the end in the width direction of the glass film 2, and the glass film 2 from which the ear portion 2c has been removed are wound into a roll to form the glass roll 1. Equipped with a glass

The molding portion 16 is a wedge-shaped molded body 21 having an overflow groove 21a formed at the upper end thereof, and an edge roller that is arranged directly under the molded body 21 and sandwiches the molten glass overflowing from the molded body 21 from both the front and back sides. A 22 and an annealer 23 deployed directly under the edge roller 22 are provided.

The molding unit 16 forms a film-shaped molten glass by flowing the molten glass overflowing from above the overflow groove 21a of the molded body 21 along both side surfaces and merging at the lower ends. The edge roller 22 regulates the shrinkage of the molten glass in the width direction to form a glass film 2 having a predetermined width. The annealing 23 is for subjecting the glass film 2 to a strain-removing treatment. The annealer 23 has an annealer rollers 24 arranged in a plurality of stages in the vertical direction.

Below the annealer 23, a support roller 25 for sandwiching the glass film 2 from both the front and back sides is arranged. A tension is applied between the support roller 25 and the edge roller 22, or between the support roller 25 and any one of the annealing rollers 24 to help thin the glass film 2.

The direction changing unit 17 is provided at a position below the support roller 25. A plurality of guide rollers 26 for guiding the glass film 2 are arranged in a curved shape in the direction changing unit 17. These guide rollers 26 guide the glass film 2 conveyed in the vertical direction in the lateral direction.

The lateral transport unit 18 is arranged in front (downstream side) of the direction changing unit 17 in the traveling direction. The lateral transport unit 18 is composed of a belt conveyor, but is not limited to this configuration. The lateral transport unit 18 continuously transports the glass film 2 that has passed through the direction changing unit 17 to the downstream side by driving the endless belt-shaped belt 18a.

The cutting portion 19 is arranged above the lateral transport portion 18. In the present embodiment, the cutting portion 19 cuts the glass film 2 by laser cutting, but the cutting portion 19 is not limited to this, and may be laser cutting or other cutting means. The cutting portion 19 includes a laser irradiation device 27 and a cooling device 28. The laser irradiation device 27 locally heats a predetermined portion of the glass film 2 by irradiating the predetermined portion with the laser beam L. The cooling device 28 is arranged on the downstream side of the laser irradiation device 27 in the transport direction of the glass film 2. The cooling device 28 injects the refrigerant W onto the locally heated portion of the glass film 2 to cool the portion.

The winding unit 20 is installed on the downstream side of the lateral transport unit 18 and the cutting unit 19. The winding unit 20 winds the glass film 2 in a roll shape by rotating the winding core 4. The protective film supply device 7 is arranged at a position near the winding unit 20. The configuration of the protective film supply device 7 is the same as that of the third embodiment.

Hereinafter, a method of manufacturing the glass roll 1 by the manufacturing apparatus 5 having the above configuration will be described. In this manufacturing method, a forming step of forming a strip-shaped glass film 2 by a forming portion 16, a conveying step of conveying the glass film 2 by a direction changing portion 17 and a lateral conveying portion 18, and a width of the glass film 2 by a cutting portion 19 A cutting step of cutting the directional end (ear portion 2c), a glass film supply step of supplying the glass film 2 to the winding section 20 after the cutting step, and a protective film supply step of superimposing the protective film 3 on the glass film 2. The glass film 2 is provided with a winding step of winding the glass film 2 by the winding unit 20.

In the molding step, the molten glass that overflows from above the overflow groove 21a of the molded body 21 in the molded portion 16 is allowed to flow down along both side surfaces and merged at the lower ends to form a film-shaped molten glass. At this time, the shrinkage of the molten glass in the width direction is regulated by the edge roller 22 to obtain the glass film 2 having a predetermined width. Then, the glass film 2 is subjected to a strain removing treatment by an annealer 23 (slow cooling step). The glass film 2 is formed to a predetermined thickness by the tension of the support roller 25.

In the transporting step, the direction changing section 17 changes the transport direction of the glass film 2 to the lateral direction, and the lateral transport section 18 transports the glass film 2 to the winding section 20 on the downstream side.

In the cutting step, while the glass film 2 is sent to the downstream side by the lateral transport portion 18, an initial crack is formed in the tip portion of the glass film 2 by a scratched member (not shown) in the cutting portion 19, and then the local portion of the laser irradiation device 27 is formed. Thermal stress is generated in the glass film 2 by expansion due to heating and contraction due to cooling of 28 of the cooling device. As a result, the selvage portion 2c as the non-product portion is separated from the glass film 2 as the product portion.

In the glass film supply step, the glass film 2 from which the selvage portion 2c has been removed by the cutting step is supplied to the winding section 20. The selvage portion 2c is transported to the downstream side of the lateral transport unit 18, and is collected by a collection device (not shown) on the upstream side of the winding unit 20.

In the protective film supply step, as in the third embodiment, the separator 14 is peeled off from the protective film 3, and the protective film 3 and the glass film 2 are sandwiched between the guide roller 9 and the winding core 4, thereby forming the protective film 3. One surface 3a (adhesive surface) is attached to the second surface 2b of the glass film 2.

In the winding step, the glass film 2 on which the protective film 3 is stacked is wound by the winding core 4. The winding core 4 winds the glass film 2 and the protective film 3 so that the protective film 3 is located on the outer peripheral side of the glass film 2. When the glass film 2 having a predetermined length is wound, the winding process is completed and the glass roll 1 is completed.

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, the base glass roll 1A made of only the glass film 2 is illustrated, but the configuration is not limited to this. The base material glass roll 1A may be formed by stacking a strip-shaped cushioning film made of a resin such as PET on a glass film 2 as a base material in a roll shape. In this case, in the glass film supply step, the glass film 2 drawn out from the base glass roll 1A and the cushioning film are separated. The separated buffer film is wound by a separately prepared winding core in the vicinity of the base glass roll 1A.

In the above embodiment, the configuration in which the protective film 3 is adhered to the second surface 2b of the glass film 2 and then wound around the winding core 4 as it is is illustrated, but the configuration is not limited to this. After the protective film 3 is adhered to the second surface 2b of the glass film 2, a band-shaped cushioning film made of a resin such as PET is laminated on the first surface 2a side of the glass film 2 (in a non-adhesive state). It may be wound around the winding core 4. In this case, the surface accuracy of the first surface 2a (guaranteed surface) can be ensured more effectively.

A reader (for example, a strip-shaped resin film) for connecting the glass film 2 and the winding cores 4A and 4 may be connected to the start end portion and the end portion of the strip-shaped glass film 2.

In the above embodiment, the support mechanism 10 of the guide roller 9 is illustrated by the support member 11 and the support shaft 12, but the present invention is not limited to this. A fluid pressure type piston / cylinder mechanism, an electric motor or other mechanism may be used for the support mechanism 10.

1 Glass roll 2 Glass film 2a First surface (guaranteed surface)
2b Second side (non-guaranteed side)
3 Protective film 3a Adhesive side (one side)
4 Roll core 8 Protective film roll 9 Guide roller 10 Support mechanism 11 Support member 12 Support shaft

Claims (4)

In a method for producing a glass roll by pulling out a strip-shaped protective film having an adhesive surface from a protective film roll and winding the protective film on a strip-shaped glass film in a roll shape.
A glass film supply step of feeding the glass film in a predetermined direction, a protective film supply step of bringing the protective film drawn from the protective film roll into contact with the glass film, and the glass film on which the protective film is laminated Equipped with a winding process that winds up with a winding core,
The protective film supplying step, by guide rollers and said winding core for guiding the protective film, see clamping the glass film and the protective film,
A method for manufacturing a glass roll, wherein the guide roller is supported by a support mechanism so as to move according to an increase in the outer diameter of the glass roll wound around the winding core . The method for manufacturing a glass roll according to claim 1 , wherein the support mechanism includes a support member that rotatably supports the guide roller and a support shaft that rotatably supports the support member. The glass film has a first surface as a guaranteed surface and a second surface as a non-guaranteed surface.
The method for producing a glass roll according to claim 1 or 2, wherein the protective film supply step is a method of contacting the adhesive surface of the protective film with the second surface. In a method for producing a glass roll by pulling out a strip-shaped protective film having an adhesive surface from a protective film roll and winding the protective film on a strip-shaped glass film in a roll shape.
A glass film supply step of feeding the glass film in a predetermined direction, a protective film supply step of bringing the protective film drawn from the protective film roll into contact with the glass film, and the glass film on which the protective film is laminated Equipped with a winding process that winds up with a winding core,
In the protective film supply step, the glass film and the protective film are sandwiched between the guide roller for guiding the protective film and the winding core.
The glass film has a first surface as a guaranteed surface and a second surface as a non-guaranteed surface.
The protective film supply step is a method for producing a glass roll, which comprises bringing the adhesive surface of the protective film into contact with the second surface.

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