WO2020045010A1 - Glass film laminate roll - Google Patents

Glass film laminate roll Download PDF

Info

Publication number
WO2020045010A1
WO2020045010A1 PCT/JP2019/031230 JP2019031230W WO2020045010A1 WO 2020045010 A1 WO2020045010 A1 WO 2020045010A1 JP 2019031230 W JP2019031230 W JP 2019031230W WO 2020045010 A1 WO2020045010 A1 WO 2020045010A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
glass film
glass
lead
laminate
Prior art date
Application number
PCT/JP2019/031230
Other languages
French (fr)
Japanese (ja)
Inventor
森　弘樹
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Publication of WO2020045010A1 publication Critical patent/WO2020045010A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs

Definitions

  • the present invention relates to a glass film laminate roll formed by winding a glass film laminate.
  • a glass film is sufficiently thin and has flexibility and can be wound up in a roll shape, it may be wound up in a roll shape to form a glass roll.
  • the glass roll is capable of continuously performing manufacturing-related processing such as film formation, end face processing, and inspection on the unwound glass film, and thus has an advantage that manufacturing efficiency is improved as compared with a sheet-like glass plate.
  • patent document 1 discloses a glass film laminate for the purpose of preventing breakage of the glass film. That is, in the same document, in order to connect the end film to the longitudinal end of the glass film, to adhere the tape member to the longitudinal end of the glass film and the longitudinal end of the end film, and, It is disclosed that a support film is adhered to a main surface of a glass film. The edge film is used to prevent the glass film from breaking (especially at the longitudinal end) when the glass film is introduced into a roll-to-roll device. And the support film is for protecting the main surface of the glass film.
  • the support film is adhered to the tape member, and is adhered to both the glass film and the end film on both sides of the tape member. Therefore, the support film is not directly adhered to the longitudinal end of the glass film and the longitudinal end of the end film.
  • the glass film laminate disclosed in Patent Literature 1 includes a tape member and a support film (including an adhesive layer) at a position corresponding to the tape member, at a longitudinal end of the glass film and at a longitudinal end of the end film. Are stacked. Therefore, a large step is formed near the longitudinal end of the glass film (specifically, in the case of the document, two steps are formed). Therefore, when the glass film laminate is wound up in a roll shape, or when the glass film laminate wound up in a roll is unreeled and conveyed in a roll-to-roll apparatus, a local step is locally applied to the glass film due to the large step. Bending stress acts, and the glass film may be damaged.
  • the present invention is intended to prevent the glass film from being damaged when the glass film laminate is wound up in a roll or when the glass film laminate wound up in a roll is fed out and transported in a roll-to-roll apparatus. It is an object to control.
  • the present invention was created to solve the above problems, a glass film laminate roll formed by winding the glass film laminate, the glass film laminate is a long glass film, at least a glass film A lead film connected to one longitudinal end, and a protective film adhered to the main surface of the glass film to protect the glass film, wherein the protective film leads from the longitudinal end of the glass film.
  • the protective film and the glass film protrude toward the film side, and the longitudinal ends of the protective film and the glass film are directly adhered, and the longitudinal ends of the protective film and the lead film are directly adhered. According to such a configuration, the protective film is directly adhered to the respective longitudinal ends of the glass film and the lead film.
  • the length in the longitudinal direction of the portion protruding toward the lead film side from the longitudinal end of the glass film is preferably equal to or greater than the roll circumference of the outermost glass film.
  • the outer peripheral surface of the outermost glass film can be covered with the two layers including the lead film and the protective film. Therefore, a small step formed between the lead film and the longitudinal end of the protective film is less likely to directly affect the glass film.
  • both the longitudinal end of the glass film and the longitudinal end of the lead film. May be exposed to the outside.
  • the other side such as a tape member is not adhered to the longitudinal end of the glass film and the longitudinal end of the lead film on the surface opposite to the surface to which the protective film is adhered.
  • the step can be substantially eliminated near the longitudinal end of the glass film on the surface opposite to the surface to which the protective film is adhered.
  • both the longitudinal end of the glass film and the longitudinal end of the lead film when the glass film laminate is developed on a flat surface, on the surface opposite to the surface to which the protective film is adhered, both the longitudinal end of the glass film and the longitudinal end of the lead film. May be provided with a tape member adhered to the tape.
  • the longitudinal end of the glass film and the longitudinal end of the lead film are firmly fixed from both sides in the thickness direction by the protective film and the tape member, the glass film and / or the lead film becomes less likely to be inadvertently peeled off from the protective film. Therefore, the adhesive surface of the protective film is hardly exposed to the outside from between the glass film and the lead film, and the surrounding environment can be prevented from being contaminated by the adhesive.
  • a gap is formed between the longitudinal end of the glass film and the longitudinal end of the lead film. This makes it difficult for the end faces of the glass film and the lead film to directly contact each other. Therefore, breakage of the glass film can be more reliably suppressed.
  • the glass film is broken when the glass film laminate is wound up in a roll or when the glass film laminate wound up in a roll is unreeled and conveyed in a roll-to-roll apparatus. Can be reliably suppressed.
  • FIG. 2 is a bottom view (viewed from the protective film side) of FIG. 1.
  • FIG. 2 is an enlarged view of an X region in FIG. 1.
  • a glass film laminate roll 1 As shown in FIGS. 1 and 2, a glass film laminate roll 1 according to the first embodiment includes a cylindrical core 2 and a glass film laminate 3 wound around the core 2 in a roll shape. Have. For convenience of explanation, the thickness of each component of the glass film laminate 3 is exaggerated.
  • the length in the width direction of the core 2 (the length in the direction perpendicular to the longitudinal direction) may be substantially the same as the length in the width direction of the glass film laminate 3, but in the present embodiment, the glass film It is larger than the length of the laminate 3 in the width direction.
  • the outer diameter of the core 2 is appropriately adjusted depending on the thickness (flexibility) of the glass film 4, and is preferably, for example, 75 to 300 mm.
  • the material of the core 2 is not particularly limited, and for example, a resin or a metal can be used.
  • the core 2 is not an essential component of the glass film laminate roll 1 and may be, for example, removed after the glass film laminate 3 is wound.
  • the glass film laminate 3 includes a long glass film 4, first and second lead films 5 and 6 connected to a front end 4 a and a rear end 4 b in the longitudinal direction of the glass film 4, respectively, And a protective film 7 adhered to the first main surface 4c of the glass film 4 to protect the glass film 4.
  • first lead film 5 side will be described as a front side
  • second lead film 6 will be described as a rear side.
  • the glass film 4 has flexibility.
  • the thickness of the glass film 4 is, for example, preferably from 5 to 300 ⁇ m, and more preferably from 50 to 100 ⁇ m.
  • the glass film 4 is formed by a known forming method such as a float method or a down draw method. Among them, the glass film 4 is preferably formed by an overflow down draw method. By doing so, there is an advantage that the surface of the glass film 4 becomes an unpolished fired surface and becomes very smooth.
  • the length of the glass film 4 in the longitudinal direction (winding direction) is not particularly limited, but may be, for example, 100 to 500 m when it is long, and may exceed 1000 m when it is longer.
  • composition of the glass film 4 examples include alkali-free glass, borosilicate glass, soda glass (soda lime glass), high silica glass, and other oxide-based glasses containing silicon oxide as a main component.
  • the glass film 4 may be chemically strengthened glass, and in this case, aluminosilicate glass can be used.
  • Both end faces in the width direction of the glass film 4 are preferably laser cut or laser cut sections from the viewpoint of securing the bending strength of the glass film 4.
  • the surface roughness Ra (based on JIS B0601: 2001) of both end surfaces in the width direction of the glass film 4 is preferably 0.1 ⁇ m or less, and more preferably 0.05 ⁇ m or less.
  • the end face of the front end part 4a and the end face of the rear end part 4b of the glass film 4 may also satisfy the same conditions as the width direction both end faces of the glass film 4.
  • the laser cutting is a method of cutting the glass film 4 by developing an initial crack by thermal stress generated by expansion by a heating action of a laser and contraction by a cooling action of a refrigerant.
  • laser fusing is a method in which a portion that has been melted by the heating action of a laser is removed by jetting a fluid (for example, gas) and cut.
  • the glass film 4 is used as a glass substrate for a flat panel display, a solar cell, an organic EL lighting, a touch panel, a digital signage, and the like, for example.
  • the first lead film 5 is connected to the front end 4 a of the glass film 4 and extends forward along the longitudinal direction of the glass film 4.
  • the second lead film 6 is connected to the rear end 4 b of the glass film 4 and extends rearward along the longitudinal direction of the glass film 4.
  • the rear end 6b of the second lead film 6 is fixed to the core 2 by, for example, a tape member (not shown).
  • the leading end portion 5a of the first lead film 5 is formed of a film of the outermost layer (for example, the leading end portion 5a of the first lead film 5 and (An intermediate portion between the end portions 5b).
  • the front end 4a and the rear end 4b of the glass film 4 are collectively referred to as the longitudinal end of the glass film 4.
  • the lead films 5 and 6 do not overlap with the longitudinal end of the glass film 4.
  • the rear end portion 5b of the first lead film 5 and the front end portion 4a of the glass film 4 may be arranged with their end faces abutting each other, but in the present embodiment, as shown in FIG. Are arranged in a state where the two end faces are opposed to each other so as to form a gap 8 between the end faces.
  • the leading end portion 6a of the second lead film 6 and the rear end portion 4b of the glass film 4 may be arranged with their end faces abutting each other, but a gap (not shown) is provided between both end faces. ) Are formed such that both end faces are opposed to each other with a space therebetween.
  • the rear end 5b of the first lead film 5 and the front end 6a of the second lead film 6 are collectively referred to as longitudinal ends of the lead films 5 and 6.
  • the interval S of the gap 8 formed between the end face of the rear end 5b of the first lead film 5 and the end face of the front end 4a of the glass film 4 is not particularly limited. 05 to 3 mm.
  • the interval between the gaps formed between the end face of the leading end 6a of the second lead film 6 and the end face of the rear end 4b of the glass film 4 is not particularly limited. The preferred range is the same.
  • the thickness of the lead films 5 and 6 is not particularly limited, but is preferably substantially the same as the thickness of the glass film 4.
  • the thickness difference between the lead films 5, 6 and the glass film 4 is preferably, for example, 0.1 mm or less.
  • the length in the longitudinal direction of the lead films 5 and 6 is not particularly limited, the length of the glass film laminate 3 unwound from the glass film laminate roll 1 is continuously measured by a roll-to-roll apparatus.
  • a predetermined manufacturing-related process for example, end face processing, trimming, end face inspection, and the like
  • the length in the longitudinal direction of the lead films 5 and 6 is larger than the length in the longitudinal direction of the protrusions 7x and 7y of the protective film 7 described later.
  • the length of the lead films 5 and 6 in the width direction is not particularly limited, but is preferably substantially the same as the length of the glass film 4 in the width direction.
  • the difference in the length in the width direction between the lead films 5, 6 and the glass film 4 is preferably, for example, 3 mm or less.
  • the size in the width direction hardly fluctuates over the entire length of the glass film laminate 3.
  • the glass film laminate The body 3 hardly meanders.
  • a resin is preferable.
  • the material of the lead films 5 and 6 for example, polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polyvinylidene chloride (PVDC), polypropylene (PP), polyvinyl alcohol ( PVA), polyester (PBT), polycarbonate (PC), polystyrene (PS), polyacrylonitrile (PAN), ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene-methacrylic acid copolymer, polyamide, cellophane And silicone resins.
  • the lead films 5 and 6 are PET films.
  • the protective film 7 protrudes forward from the front end 4a of the glass film 4 and protrudes rearward from the rear end 4b of the glass film 4.
  • the protective film 7 is directly adhered to the first main surface 4c of the glass film 4.
  • the protruding portion 7x on the front side of the protective film 7 is directly adhered to the first lead film 5, and the protruding portion 7y on the rear side of the protective film 7 is directly adhered to the second lead film 6.
  • the state of being directly adhered refers to a state in which only the adhesive layer of the protective film 7 is interposed between the base material of the protective film 7 and the glass film 4 (or the lead films 5 and 6). means.
  • the protective film 7 connects the glass film 4 and the first lead film 5, and connects the glass film 4 and the second lead film 6.
  • a tape member near the longitudinal end of the glass film 4 on the first main surface 4c side of the glass film 4 and between the protective film 7. Therefore, a step near the longitudinal end of the glass film 4 on the first main surface 4c side of the glass film 4 can be reduced or the step itself can be eliminated.
  • the glass film laminate 3 is wound up, or when the rolled-up glass film laminate 3 is unwound and transported in a roll-to-roll apparatus, the glass near the longitudinal end of the glass film 4 is removed.
  • FIG. 1 the lengths of the protruding portions 7x and 7y of the protective film 7 in the longitudinal direction are sufficiently long, and the portions near the longitudinal end of the glass film 4 on the first main surface 4c side of the glass film 4 are shown. And a state where there is no step.
  • the length in the longitudinal direction of the protruding portions 7x and 7y of the protective film 7 is not particularly limited, but the roll circumference of the outermost glass film 4 in a state where the glass film laminate 3 is wound up ( (One cycle) or more.
  • the outer peripheral surface of the outermost glass film 4 and the inner peripheral surface of the innermost glass film can be reliably covered with the two layers of the lead film 5 and the protective film 7. Therefore, a small step caused by a thickness difference formed between the front end portion 7a of the protective film 7 and the first lead film 5 and between the rear end portion 7b of the protective film 7 and the second lead film 6 is also reduced. In addition, it is difficult to directly affect the glass film 4.
  • the length in the longitudinal direction of the protruding portion 7y located on the inner diameter side is the same as when the glass film laminate 3 is wound. It is set to be equal to or longer than the roll circumference of the outermost glass film 4. The reason is that each time the roll-to-roll apparatus performs processing, the direction of the start end in the winding direction is switched, and the overhanging portion 7y is located on the outer diameter side of the overhanging portion 7x. That's why.
  • the bite located on the inner diameter side may be used.
  • the length of the extending portion 7y in the longitudinal direction may be set to be equal to or longer than the roll circumference of the innermost glass film 4 in the state where the glass film laminate 3 is wound.
  • both the front end 4 a of the glass film 4 and the rear end 5 b of the first lead film 5 are exposed to the outside, and the rear end of the glass film 4. Both the portion 4b and the tip 6a of the second lead film 6 are exposed to the outside.
  • the thickness of the protective film 7 is not particularly limited as long as the glass film laminate 3 has flexibility, but is preferably thinner from the viewpoint of improving flexibility.
  • the thickness of the base material of the protective film 7 is, for example, preferably 5 to 200 ⁇ m, and more preferably 10 to 100 ⁇ m.
  • the thickness of the adhesive layer of the protective film 7 is, for example, preferably 0.1 to 100 ⁇ m, and more preferably 2 to 20 ⁇ m.
  • the length of the protective film 7 in the width direction is not particularly limited, but is smaller than the glass film 4 in the present embodiment. That is, the glass film 4 protrudes from both sides in the width direction of the protective film 7. Thereby, the predetermined process can be continuously performed by the roll-to-roll apparatus with respect to the width direction edge part of the glass film 4 with the protective film 7 adhered to the glass film 4.
  • the length of the protective film 7 in the width direction may be the same as the length of the glass film 4 in the width direction, or may be larger than the length of the glass film 4 in the width direction.
  • a resin is preferable.
  • the same material as exemplified for the lead films 5 and 6 can be selected.
  • the base material of the protective film 7 is preferably a PET film.
  • an optical transparent adhesive sheet (OCA), a pressure-sensitive adhesive sheet (PSA), or the like can be used.
  • OCA optical transparent adhesive sheet
  • PSA pressure-sensitive adhesive sheet
  • an acrylic adhesive, a silicone adhesive, an epoxy adhesive, a photocurable adhesive (for example, an ultraviolet curable adhesive), or the like can be used.
  • the adhesive layer of the protective film 7 preferably has a slight adhesiveness. Thereby, it is possible to easily peel off the protective film 7 from the glass film 4.
  • “slight adhesion” means that the adhesive strength (peel strength) measured by a 180 ° peel strength test (based on JIS Z # 0237: 2009) is 0.01 to 1 N / 25 mm.
  • the glass film laminate 3 may be wound around the core 2 with the protective film 7 side inside, but in the present embodiment, as shown in FIG. It is wound around the core 2 with the film 7 side facing out.
  • the length of the protective film 7 in the width direction is set to be larger than the length of the glass film 4 in the width direction, as shown in FIG. It may be larger than the length in the direction.
  • the length of the lead films 5 and 6 in the width direction is larger than the length of the glass film 4 in the width direction, and is substantially the same as the length of the protection film 7 in the width direction.
  • the glass film laminate roll 1 according to the second embodiment is different from the glass film laminate roll 1 according to the first embodiment in that the glass film 4 has a second main surface 4d side, That is, the first tape member 21 is adhered so as to straddle both the front end 4a of the glass film 4 and the rear end 5b of the first lead film 5 on the surface opposite to the surface to which the protective film 7 is adhered.
  • the second tape member 22 is adhered so as to straddle both the rear end portion 4b of the glass film 4 and the front end portion 6a of the second lead film 6. Note that the same reference numerals are given to other common components, and detailed description thereof will be omitted.
  • the front end 4a of the glass film 4 and the rear end 5b of the first lead film 5 are firmly fixed from both sides in the thickness direction by the protective film 7 and the first tape member 21.
  • the rear end portion 4b of the glass film 4 and the front end portion 6a of the second lead film 6 are firmly fixed by the protective film 7 and the second tape member 22 from both sides in the thickness direction. Therefore, the longitudinal ends of the glass film 4 and / or the lead films 5 and 6 are less likely to be inadvertently peeled off the protective film 7. Therefore, the adhesive surface of the protective film 7 is hardly exposed to the outside, and the surrounding environment can be prevented from being contaminated by the adhesive on the adhesive surface. In particular, such an effect is obtained when the glass film laminate 3 is wound around the transport roller of the roll-to-roll device such that the second main surface 4d side of the glass film 4 is outside (convex side). Will be useful.
  • the thickness of the tape members 21 and 22 is not particularly limited as long as the tape members 21 and 22 have flexibility. However, it is preferable that the tape members 21 and 22 be thin from the viewpoint of reducing the level difference near the longitudinal end of the glass film 4.
  • the base material of the tape members 21 and 22 preferably has a thickness of, for example, 5 to 200 ⁇ m, and more preferably 10 to 100 ⁇ m.
  • the thickness of the adhesive layers of the tape members 21 and 22 is preferably, for example, 0.1 to 100 ⁇ m, and more preferably 0.2 to 20 ⁇ m.
  • the adhesive range of the tape members 21 and 22 is limited to the vicinity of the longitudinal end of the glass film 4. It is length.
  • the length of the tape members 21 and 22 in the width direction is not particularly limited, but is preferably adhered over the entire width of the glass film 4. Desirably, in order to prevent the tape members 21 and 22 from protruding from the width of the glass film 4, the length in the width direction of the tape members 21 and 22 is slightly shorter than the entire width of the glass film 4. Provided. The length of the tape members 21 and 22 in the width direction is larger than the length of the tape members 21 and 22 in the longitudinal direction.
  • a resin film is preferable.
  • the same material as exemplified for the lead films 5 and 6 can be selected.
  • the base material of the tape members 21 and 22 is preferably a PET film.
  • the same material as exemplified in the adhesive layer of the protective film 7 can be selected.
  • the adhesive strength of the adhesive layers of the tape members 21 and 22 may be substantially the same as the adhesive strength of the adhesive layer of the protective film 7, but in the present embodiment, the adhesive strength of the adhesive layer of the protective film 7. Stronger than.
  • the present invention is not limited to the above-described embodiment at all, and may be implemented in various other forms without departing from the gist of the present invention.
  • an intervening film (not shown) having no adhesive layer such as interleaf paper is peeled off from the glass film laminate 3. They may be overlapped as much as possible and wound together around the core 2.
  • the intervening film is preferably overlapped on the second main surface 4d of the glass film 4.
  • the intervening film may be stacked on the first main surface 4c side of the glass film 4, that is, on the protective film 7.
  • the adhesive strength of the protective film 7 may be locally increased at the portion where the protection film 7 is formed. In this way, the longitudinal ends of the glass film 4 and / or the lead films 5 and 6 are less likely to be inadvertently peeled off the protective film 7.
  • the lead films 5 and 6 are connected to the leading end portion 4a and the trailing end portion 4b of the glass film 4 has been described, but any one of the leading end portion 4a and the trailing end portion 4b of the glass film 4 will be described.
  • the lead film may be connected only to one side.

Abstract

Provided is a glass film laminate roll 1 formed by winding a glass film laminate 3. The glass film laminate 3 comprises a long glass film 4, lead films 5, 6 that are connected to the longitudinal ends of the glass film 4, and a protective film 7 that is bonded to a first main surface 4c of the glass film 4 in order to protect the glass film 4. The protective film 7 juts out farther toward the lead-film 5, 6 side than longitudinal ends 4a, 4b of the glass film 4, and moreover is configured so that the protective film 7 and the longitudinal ends 4a, 4b of the glass film 4 are directly bonded together, and so that the protective film 7 and longitudinal ends 5b, 6a of the lead films 5, 6 are directly bonded together.

Description

ガラスフィルム積層体ロールGlass film laminate roll
　本発明は、ガラスフィルム積層体を巻き取って形成されたガラスフィルム積層体ロールに関する。 The present invention relates to a glass film laminate roll formed by winding a glass film laminate.
　近年では、液晶ディスプレイ等のフラットパネルディスプレイ用のガラス基板を始めとする各種ガラス板において、フィルム状まで薄板化が進められたガラスフィルムが利用される場合がある。 In recent years, in various glass plates including a glass substrate for a flat panel display such as a liquid crystal display, a glass film thinned to a film shape is sometimes used.
　ガラスフィルムは、十分に薄いことから可撓性を有し、ロール状に巻き取ることが可能であるため、ロール状に巻き取ってガラスロールの形態とされる場合がある。ガラスロールは、繰り出したガラスフィルムに対して成膜、端面加工、検査などの製造関連処理を連続的に施すことができるため、枚葉状のガラス板に比べて製造効率がよくなるという利点がある。 Because a glass film is sufficiently thin and has flexibility and can be wound up in a roll shape, it may be wound up in a roll shape to form a glass roll. The glass roll is capable of continuously performing manufacturing-related processing such as film formation, end face processing, and inspection on the unwound glass film, and thus has an advantage that manufacturing efficiency is improved as compared with a sheet-like glass plate.
　しかしながら、ガラスフィルムは非常に薄いため、破損しやすいという問題がある。そこで、特許文献１には、ガラスフィルムの破損を防止することを目的としたガラスフィルム積層体が開示されている。すなわち、同文献には、ガラスフィルムの長手方向端部に端部フィルムを連接するために、ガラスフィルムの長手方向端部および端部フィルムの長手方向端部にテープ部材を粘着すること、および、ガラスフィルムの主表面に支持フィルムを粘着することが開示されている。端部フィルムは、ロール・ツー・ロール（Roll to Roll）装置にガラスフィルムを導入する際に、ガラスフィルムを牽引してガラスフィルムの破損（特に長手方向端部の破損）を防止するためのものであり、支持フィルムは、ガラスフィルムの主表面を保護するためのものである。 However, since the glass film is very thin, there is a problem that it is easily broken. Then, patent document 1 discloses a glass film laminate for the purpose of preventing breakage of the glass film. That is, in the same document, in order to connect the end film to the longitudinal end of the glass film, to adhere the tape member to the longitudinal end of the glass film and the longitudinal end of the end film, and, It is disclosed that a support film is adhered to a main surface of a glass film. The edge film is used to prevent the glass film from breaking (especially at the longitudinal end) when the glass film is introduced into a roll-to-roll device. And the support film is for protecting the main surface of the glass film.
　ここで、支持フィルムは、テープ部材に粘着されると共に、テープ部材の両側でガラスフィルムおよび端部フィルムの両方に粘着されている。したがって、支持フィルムは、ガラスフィルムの長手方向端部および端部フィルムの長手方向端部には直接粘着されていない。 Here, the support film is adhered to the tape member, and is adhered to both the glass film and the end film on both sides of the tape member. Therefore, the support film is not directly adhered to the longitudinal end of the glass film and the longitudinal end of the end film.
特開２０１３－３５１５８号公報JP 2013-35158 A
　特許文献１に開示のガラスフィルム積層体は、テープ部材に対応する位置で、ガラスフィルムの長手方向端部および端部フィルムの長手方向端部に、テープ部材と支持フィルム（粘着層を含む）との二層が重ねられた状態となっている。そのため、ガラスフィルムの長手方向端部の近傍に大きな段差（詳細には、同文献の場合は、二段の階段状の段差）が形成される。したがって、ガラスフィルム積層体をロール状に巻き取る時や、ロール状に巻き取ったガラスフィルム積層体を繰り出してロール・ツー・ロール装置内を搬送する時に、この大きな段差によってガラスフィルムに局所的な曲げ応力が作用し、ガラスフィルムが破損するおそれがある。 The glass film laminate disclosed in Patent Literature 1 includes a tape member and a support film (including an adhesive layer) at a position corresponding to the tape member, at a longitudinal end of the glass film and at a longitudinal end of the end film. Are stacked. Therefore, a large step is formed near the longitudinal end of the glass film (specifically, in the case of the document, two steps are formed). Therefore, when the glass film laminate is wound up in a roll shape, or when the glass film laminate wound up in a roll is unreeled and conveyed in a roll-to-roll apparatus, a local step is locally applied to the glass film due to the large step. Bending stress acts, and the glass film may be damaged.
　本発明は、ガラスフィルム積層体をロール状に巻き取る時や、ロール状に巻き取ったガラスフィルム積層体を繰り出して、ロール・ツー・ロール装置内を搬送する時に、ガラスフィルムが破損するのを抑制することを課題とする。 The present invention is intended to prevent the glass film from being damaged when the glass film laminate is wound up in a roll or when the glass film laminate wound up in a roll is fed out and transported in a roll-to-roll apparatus. It is an object to control.
　上記の課題を解決するために創案された本発明は、ガラスフィルム積層体を巻き取って形成されたガラスフィルム積層体ロールにおいて、ガラスフィルム積層体が、長尺なガラスフィルムと、ガラスフィルムの少なくとも一方の長手方向端部に連接されたリードフィルムと、ガラスフィルムを保護するためにガラスフィルムの主表面に粘着された保護フィルムと、を備え、保護フィルムが、ガラスフィルムの長手方向端部よりリードフィルム側へ食み出しており、保護フィルムおよびガラスフィルムの長手方向端部が直接粘着されると共に、保護フィルムおよびリードフィルムの長手方向端部が直接粘着されていることを特徴とする。このような構成によれば、保護フィルムが、ガラスフィルムおよびリードフィルムのそれぞれの長手方向端部に直接粘着されている。そのため、保護フィルムとガラスフィルムの長手方向端部との間、および、保護フィルムとリードフィルムの長手方向端部との間に、テープ部材などの不必要な介在物が存在しない。したがって、ガラスフィルムの長手方向端部の近傍の段差を小さくしたり、段差自体をなくしたりすることができる。その結果、ガラスフィルム積層体をロール状に巻き取る時や、ロール状に巻き取ったガラスフィルム積層体を繰り出して、ロール・ツー・ロール装置内を搬送する時に、ガラスフィルムの長手方向端部の近傍でガラスフィルムに局所的な曲げ応力が作用しにくくなり、ガラスフィルムが破損するのを抑制できる。 The present invention was created to solve the above problems, a glass film laminate roll formed by winding the glass film laminate, the glass film laminate is a long glass film, at least a glass film A lead film connected to one longitudinal end, and a protective film adhered to the main surface of the glass film to protect the glass film, wherein the protective film leads from the longitudinal end of the glass film. The protective film and the glass film protrude toward the film side, and the longitudinal ends of the protective film and the glass film are directly adhered, and the longitudinal ends of the protective film and the lead film are directly adhered. According to such a configuration, the protective film is directly adhered to the respective longitudinal ends of the glass film and the lead film. Therefore, there is no unnecessary inclusion such as a tape member between the protective film and the longitudinal end of the glass film and between the protective film and the longitudinal end of the lead film. Therefore, a step near the longitudinal end of the glass film can be reduced or the step itself can be eliminated. As a result, when the glass film laminate is wound into a roll, or when the glass film laminate wound up in a roll is unreeled and transported in a roll-to-roll apparatus, the longitudinal end of the glass film is removed. Local bending stress is less likely to act on the glass film in the vicinity, so that breakage of the glass film can be suppressed.
　上記の構成において、保護フィルムのうち、ガラスフィルムの長手方向端部よりリードフィルム側に食み出した部分の長手方向の長さが、最外層のガラスフィルムのロール周長以上であることが好ましい。このようにすれば、最外層のガラスフィルムの外周面を、リードフィルムおよび保護フィルムからなる二層で覆うことができる。そのため、リードフィルムと保護フィルムの長手方向端部との間に形成される小さい段差も、ガラスフィルムに直接影響しにくくなる。 In the above configuration, in the protective film, the length in the longitudinal direction of the portion protruding toward the lead film side from the longitudinal end of the glass film is preferably equal to or greater than the roll circumference of the outermost glass film. . In this case, the outer peripheral surface of the outermost glass film can be covered with the two layers including the lead film and the protective film. Therefore, a small step formed between the lead film and the longitudinal end of the protective film is less likely to directly affect the glass film.
　上記の構成において、ガラスフィルム積層体を平面上に展開した場合に、保護フィルムが粘着された面とは反対側の面で、ガラスフィルムの長手方向端部およびリードフィルムの長手方向端部の両方が外部に露出していてもよい。このようにすれば、保護フィルムが粘着された面とは反対側の面で、ガラスフィルムの長手方向端部およびリードフィルムの長手方向端部にテープ部材などの他部材が粘着されていない状態になる。したがって、保護フィルムが粘着された面とは反対側の面における、ガラスフィルムの長手方向端部の近傍においても段差を実質的になくすことができる。 In the above configuration, when the glass film laminate is developed on a flat surface, on the surface opposite to the surface to which the protective film is adhered, both the longitudinal end of the glass film and the longitudinal end of the lead film. May be exposed to the outside. In this way, the other side such as a tape member is not adhered to the longitudinal end of the glass film and the longitudinal end of the lead film on the surface opposite to the surface to which the protective film is adhered. Become. Therefore, the step can be substantially eliminated near the longitudinal end of the glass film on the surface opposite to the surface to which the protective film is adhered.
　上記の構成において、ガラスフィルム積層体を平面上に展開した場合に、保護フィルムが粘着された面とは反対側の面で、ガラスフィルムの長手方向端部およびリードフィルムの長手方向端部の両方に粘着されたテープ部材を備えていてもよい。このようにすれば、ガラスフィルムの長手方向端部およびリードフィルムの長手方向端部が、保護フィルムとテープ部材とにより、厚み方向の両側から堅固に固定されるため、ガラスフィルムおよび／又はリードフィルムの長手方向端部が保護フィルムから不用意に剥がれにくくなる。したがって、保護フィルムの粘着面が、ガラスフィルムおよびリードフィルムの間から外部に露出しにくく、粘着剤によって周囲環境が汚染されるのを防止できる。 In the above configuration, when the glass film laminate is developed on a flat surface, on the surface opposite to the surface to which the protective film is adhered, both the longitudinal end of the glass film and the longitudinal end of the lead film. May be provided with a tape member adhered to the tape. With this configuration, since the longitudinal end of the glass film and the longitudinal end of the lead film are firmly fixed from both sides in the thickness direction by the protective film and the tape member, the glass film and / or the lead film Becomes less likely to be inadvertently peeled off from the protective film. Therefore, the adhesive surface of the protective film is hardly exposed to the outside from between the glass film and the lead film, and the surrounding environment can be prevented from being contaminated by the adhesive.
　上記の構成において、ガラスフィルムの長手方向端部およびリードフィルムの長手方向端部の間に、隙間が形成されていることが好ましい。このようにすれば、ガラスフィルムおよびリードフィルムの端面同士が直接接触しにくくなる。したがって、ガラスフィルムが破損するのをより確実に抑制できる。 In the above configuration, it is preferable that a gap is formed between the longitudinal end of the glass film and the longitudinal end of the lead film. This makes it difficult for the end faces of the glass film and the lead film to directly contact each other. Therefore, breakage of the glass film can be more reliably suppressed.
　本発明によれば、ガラスフィルム積層体をロール状に巻き取る時や、ロール状に巻き取ったガラスフィルム積層体を繰り出して、ロール・ツー・ロール装置内を搬送する時に、ガラスフィルムが破損するのを確実に抑制できる。 According to the present invention, the glass film is broken when the glass film laminate is wound up in a roll or when the glass film laminate wound up in a roll is unreeled and conveyed in a roll-to-roll apparatus. Can be reliably suppressed.
第一実施形態に係るガラスフィルム積層体ロールを示す側面図であって、ガラスフィルム積層体を平面上に展開した状態を示す。It is a side view showing the glass film layered product roll concerning a first embodiment, and shows the state where the glass film layered product was developed on a plane. 図１の底面図（保護フィルム側から視た図）である。FIG. 2 is a bottom view (viewed from the protective film side) of FIG. 1. 図１のＸ領域の拡大図である。FIG. 2 is an enlarged view of an X region in FIG. 1. 第一実施形態に係るガラスフィルム積層体ロールの変形例を示す部分底面図（保護フィルム側から視た図）であって、ガラスフィルム積層体を平面上に展開した状態を示す。It is a partial bottom view (view seen from the protective film side) which shows the modification of the glass film laminate roll concerning a first embodiment, and shows the state where the glass film laminate was developed on a plane. 第二実施形態に係るガラスフィルム積層体ロールを示す側面図であって、ガラスフィルム積層体を平面上に展開した状態を示す。It is a side view showing the glass film layered product roll concerning a second embodiment, and shows the state where the glass film layered product was developed on a plane.
　以下、本発明の実施形態について添付図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
（第一実施形態）
　図１及び図２に示すように、第一実施形態に係るガラスフィルム積層体ロール１は、円筒状のコア２と、コア２の周囲にロール状に巻き取られるガラスフィルム積層体３と、を備えている。なお、説明の便宜上、ガラスフィルム積層体３の各構成の厚さは誇張して図示している。 (First embodiment)
As shown in FIGS. 1 and 2, a glass film laminate roll 1 according to the first embodiment includes a cylindrical core 2 and a glass film laminate 3 wound around the core 2 in a roll shape. Have. For convenience of explanation, the thickness of each component of the glass film laminate 3 is exaggerated.
　コア２の幅方向の長さ（長手方向と直交する方向の長さ）は、ガラスフィルム積層体３の幅方向の長さと実質的に同じであってもよいが、本実施形態では、ガラスフィルム積層体３の幅方向の長さよりも大きい。 The length in the width direction of the core 2 (the length in the direction perpendicular to the longitudinal direction) may be substantially the same as the length in the width direction of the glass film laminate 3, but in the present embodiment, the glass film It is larger than the length of the laminate 3 in the width direction.
　コア２の外径は、ガラスフィルム４の厚さ（可撓性）との関係で適宜調整されるが、例えば、７５～３００ｍｍであることが好ましい。 外 The outer diameter of the core 2 is appropriately adjusted depending on the thickness (flexibility) of the glass film 4, and is preferably, for example, 75 to 300 mm.
　コア２の材質は特に限定されるものではなく、例えば、樹脂や金属などを用いることができる。 材質 The material of the core 2 is not particularly limited, and for example, a resin or a metal can be used.
　なお、コア２は、ガラスフィルム積層体ロール１の必須の構成ではなく、例えば、ガラスフィルム積層体３を巻き取った後に抜き取るなどしてもよい。 コ ア Note that the core 2 is not an essential component of the glass film laminate roll 1 and may be, for example, removed after the glass film laminate 3 is wound.
　ガラスフィルム積層体３は、長尺なガラスフィルム４と、ガラスフィルム４の長手方向の先端部４ａおよび後端部４ｂのそれぞれに連接された第一および第二リードフィルム５，６と、ガラスフィルム４を保護するためにガラスフィルム４の第一主表面４ｃに粘着された保護フィルム７と、を備えている。なお、本実施形態では、第一リードフィルム５側を前方側、第二リードフィルム６を後方側として説明する。 The glass film laminate 3 includes a long glass film 4, first and second lead films 5 and 6 connected to a front end 4 a and a rear end 4 b in the longitudinal direction of the glass film 4, respectively, And a protective film 7 adhered to the first main surface 4c of the glass film 4 to protect the glass film 4. In the present embodiment, the first lead film 5 side will be described as a front side, and the second lead film 6 will be described as a rear side.
　ガラスフィルム４は、可撓性を有する。ガラスフィルム４の厚さは、例えば、５～３００μｍであることが好ましく、５０～１００μｍであることがより好ましい。 The glass film 4 has flexibility. The thickness of the glass film 4 is, for example, preferably from 5 to 300 μm, and more preferably from 50 to 100 μm.
　ガラスフィルム４は、フロート法やダウンドロー法などの公知の成形方法により成形される。中でも、ガラスフィルム４は、オーバーフローダウンドロー法により成形されることが好ましい。このようにすれば、ガラスフィルム４の表面が未研磨の火造り面となり、非常に平滑になるという利点がある。 The glass film 4 is formed by a known forming method such as a float method or a down draw method. Among them, the glass film 4 is preferably formed by an overflow down draw method. By doing so, there is an advantage that the surface of the glass film 4 becomes an unpolished fired surface and becomes very smooth.
　ガラスフィルム４の長手方向（巻き取り方向）の長さは、特に限定されるものではないが、例えば、長いときには１００～５００ｍ、更に長いときには１０００ｍを超える場合もある。 長 手 The length of the glass film 4 in the longitudinal direction (winding direction) is not particularly limited, but may be, for example, 100 to 500 m when it is long, and may exceed 1000 m when it is longer.
　ガラスフィルム４の組成としては、例えば、無アルカリガラス、ホウケイ酸ガラス、ソーダガラス（ソーダライムガラス）、高シリカガラス、その他の酸化ケイ素を主な成分とする酸化物系ガラスなどが挙げられる。ガラスフィルム４は化学強化ガラスであってもよく、この場合、アルミノシリケートガラスを用いることができる。 組成 Examples of the composition of the glass film 4 include alkali-free glass, borosilicate glass, soda glass (soda lime glass), high silica glass, and other oxide-based glasses containing silicon oxide as a main component. The glass film 4 may be chemically strengthened glass, and in this case, aluminosilicate glass can be used.
　ガラスフィルム４の幅方向両端面は、ガラスフィルム４の曲げ強度を確保する観点からレーザー割断又はレーザー溶断された切断面であることが好ましい。同様の観点から、ガラスフィルム４の幅方向両端面の表面粗さＲａ（ＪＩＳ　Ｂ０６０１：２００１準拠）は、０．１μｍ以下であることが好ましく、０．０５μｍ以下であることがより好ましい。なお、ガラスフィルム４の先端部４ａの端面および後端部４ｂの端面も、ガラスフィルム４の幅方向両端面と同様の条件を満たしていてもよい。ここで、レーザー割断とは、レーザーの加熱作用による膨張と、冷媒の冷却作用による収縮とによって生じる熱応力により、初期クラックを進展させてガラスフィルム４を切断する方法である。また、レーザー溶断とは、レーザーの加熱作用により溶融した部分を、流体（例えばガス）の噴射により除去して切断する方法である。 両 端 Both end faces in the width direction of the glass film 4 are preferably laser cut or laser cut sections from the viewpoint of securing the bending strength of the glass film 4. From the same viewpoint, the surface roughness Ra (based on JIS B0601: 2001) of both end surfaces in the width direction of the glass film 4 is preferably 0.1 μm or less, and more preferably 0.05 μm or less. In addition, the end face of the front end part 4a and the end face of the rear end part 4b of the glass film 4 may also satisfy the same conditions as the width direction both end faces of the glass film 4. Here, the laser cutting is a method of cutting the glass film 4 by developing an initial crack by thermal stress generated by expansion by a heating action of a laser and contraction by a cooling action of a refrigerant. In addition, laser fusing is a method in which a portion that has been melted by the heating action of a laser is removed by jetting a fluid (for example, gas) and cut.
　ガラスフィルム４は、例えば、フラットパネルディスプレイ、太陽電池、有機ＥＬ照明、タッチパネル、デジタルサイネージなどのガラス基板として利用される。 The glass film 4 is used as a glass substrate for a flat panel display, a solar cell, an organic EL lighting, a touch panel, a digital signage, and the like, for example.
　第一リードフィルム５は、ガラスフィルム４の先端部４ａに連接され、ガラスフィルム４の長手方向に沿って前方側に延びる。第二リードフィルム６は、ガラスフィルム４の後端部４ｂに連接され、ガラスフィルム４の長手方向に沿って後方側に延びる。なお、第二リードフィルム６の後端部６ｂは、例えば、図示しないテープ部材などによってコア２に固定される。また、第一リードフィルム５の先端部５ａは、例えば、ガラスフィルム積層体３を巻き取った後、図示しないテープ部材などによって最外層のフィルム（例えば、第一リードフィルム５の先端部５ａと後端部５ｂの間の中間部）に固定される。ここで、ガラスフィルム４の先端部４ａおよび後端部４ｂを総称してガラスフィルム４の長手方向端部と呼ぶ。 The first lead film 5 is connected to the front end 4 a of the glass film 4 and extends forward along the longitudinal direction of the glass film 4. The second lead film 6 is connected to the rear end 4 b of the glass film 4 and extends rearward along the longitudinal direction of the glass film 4. The rear end 6b of the second lead film 6 is fixed to the core 2 by, for example, a tape member (not shown). Further, for example, after the glass film laminate 3 is wound up, the leading end portion 5a of the first lead film 5 is formed of a film of the outermost layer (for example, the leading end portion 5a of the first lead film 5 and (An intermediate portion between the end portions 5b). Here, the front end 4a and the rear end 4b of the glass film 4 are collectively referred to as the longitudinal end of the glass film 4.
　リードフィルム５，６は、ガラスフィルム４の長手方向端部とは重ねられていない。第一リードフィルム５の後端部５ｂと、ガラスフィルム４の先端部４ａとは、両者の端面を突き合わせた状態で配置してもよいが、本実施形態では、図３に示すように、両者の端面の間に隙間８が形成されるように、両者の端面を間隔を置いて対向させた状態で配置している。同様に、第二リードフィルム６の先端部６ａと、ガラスフィルム４の後端部４ｂとは、両者の端面を突き合わせた状態で配置してもよいが、両者の端面の間に隙間（図示省略）が形成されるように、両者の端面を間隔を置いて対向させた状態で配置している。ここで、第一リードフィルム５の後端部５ｂおよび第二リードフィルム６の先端部６ａを総称してリードフィルム５，６の長手方向端部と呼ぶ。 The lead films 5 and 6 do not overlap with the longitudinal end of the glass film 4. The rear end portion 5b of the first lead film 5 and the front end portion 4a of the glass film 4 may be arranged with their end faces abutting each other, but in the present embodiment, as shown in FIG. Are arranged in a state where the two end faces are opposed to each other so as to form a gap 8 between the end faces. Similarly, the leading end portion 6a of the second lead film 6 and the rear end portion 4b of the glass film 4 may be arranged with their end faces abutting each other, but a gap (not shown) is provided between both end faces. ) Are formed such that both end faces are opposed to each other with a space therebetween. Here, the rear end 5b of the first lead film 5 and the front end 6a of the second lead film 6 are collectively referred to as longitudinal ends of the lead films 5 and 6.
　第一リードフィルム５の後端部５ｂの端面と、ガラスフィルム４の先端部４ａの端面との間に形成される隙間８の間隔Ｓは、特に限定されるものではないが、例えば、０．０５～３ｍｍである。第二リードフィルム６の先端部６ａの端面と、ガラスフィルム４の後端部４ｂの端面との間に形成される隙間の間隔も、特に限定されるものではないが、隙間８の間隔Ｓと好ましい範囲は同様とする。 The interval S of the gap 8 formed between the end face of the rear end 5b of the first lead film 5 and the end face of the front end 4a of the glass film 4 is not particularly limited. 05 to 3 mm. The interval between the gaps formed between the end face of the leading end 6a of the second lead film 6 and the end face of the rear end 4b of the glass film 4 is not particularly limited. The preferred range is the same.
　再び図１及び図２に戻って説明すると、リードフィルム５，６の厚さは、特に限定されるものではないが、ガラスフィルム４の厚さと実質的に同じであることが好ましい。リードフィルム５，６およびガラスフィルム４の厚さ差は、例えば、０．１ｍｍ以下であることが好ましい。 Referring back to FIGS. 1 and 2, the thickness of the lead films 5 and 6 is not particularly limited, but is preferably substantially the same as the thickness of the glass film 4. The thickness difference between the lead films 5, 6 and the glass film 4 is preferably, for example, 0.1 mm or less.
　リードフィルム５，６の長手方向の長さは、特に限定されるものではないが、ガラスフィルム積層体ロール１から繰り出したガラスフィルム積層体３に対して、ロール・ツー・ロール装置により連続的に所定の製造関連処理（例えば、端面加工、トリミング、端面検査など）を行う場合、装置内でのガラスフィルム４の搬送経路の全長以上とすることが好ましい。本実施形態では、リードフィルム５，６の長手方向の長さは、後述する保護フィルム７の食み出し部７ｘ，７ｙの長手方向の長さよりも大きい。 Although the length in the longitudinal direction of the lead films 5 and 6 is not particularly limited, the length of the glass film laminate 3 unwound from the glass film laminate roll 1 is continuously measured by a roll-to-roll apparatus. When performing a predetermined manufacturing-related process (for example, end face processing, trimming, end face inspection, and the like), it is preferable that the length be equal to or longer than the entire length of the transport path of the glass film 4 in the apparatus. In the present embodiment, the length in the longitudinal direction of the lead films 5 and 6 is larger than the length in the longitudinal direction of the protrusions 7x and 7y of the protective film 7 described later.
　リードフィルム５，６の幅方向の長さは、特に限定されるものではないが、ガラスフィルム４の幅方向の長さと実質的に同じであることが好ましい。リードフィルム５，６およびガラスフィルム４の幅方向の長さの差は、例えば、３ｍｍ以下であることが好ましい。これにより、ガラスフィルム積層体３の全長に亘って幅方向寸法に変動が生じにくい。その結果、ガラスフィルム積層体ロール１から繰り出したガラスフィルム積層体３に含まれるガラスフィルム４に対して、ロール・ツー・ロール装置により連続的に所定の製造関連処理を行う場合に、ガラスフィルム積層体３が蛇行しにくくなる。 The length of the lead films 5 and 6 in the width direction is not particularly limited, but is preferably substantially the same as the length of the glass film 4 in the width direction. The difference in the length in the width direction between the lead films 5, 6 and the glass film 4 is preferably, for example, 3 mm or less. As a result, the size in the width direction hardly fluctuates over the entire length of the glass film laminate 3. As a result, when the glass film 4 contained in the glass film laminate 3 unwound from the glass film laminate roll 1 is continuously subjected to predetermined production-related processing by a roll-to-roll apparatus, the glass film laminate The body 3 hardly meanders.
　リードフィルム５，６の材質としては、樹脂が好ましい。具体的には、リードフィルム５，６の材質としては、例えば、ポリエチレン（ＰＥ）、ポリ塩化ビニル（ＰＶＣ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリ塩化ビニリデン（ＰＶＤＣ）、ポリプロピレン（ＰＰ）、ポリビニルアルコール（ＰＶＡ）、ポリエステル（ＰＢＴ）、ポリカーボネート（ＰＣ）、ポリスチレン（ＰＳ）、ポリアクリロニトリル（ＰＡＮ）、エチレン酢酸ビニル共重合体、エチレン－ビニルアルコール共重合体、エチレン－メタクリル酸共重合体、ポリアミド、セロファン、シリコーン樹脂などが挙げられる。中でも、リードフィルム５，６は、ＰＥＴフィルムであることが好ましい。 樹脂 As a material of the lead films 5 and 6, a resin is preferable. Specifically, as the material of the lead films 5 and 6, for example, polyethylene (PE), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polyvinylidene chloride (PVDC), polypropylene (PP), polyvinyl alcohol ( PVA), polyester (PBT), polycarbonate (PC), polystyrene (PS), polyacrylonitrile (PAN), ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene-methacrylic acid copolymer, polyamide, cellophane And silicone resins. Especially, it is preferable that the lead films 5 and 6 are PET films.
　保護フィルム７は、ガラスフィルム４の先端部４ａから前方側へ食み出すと共に、ガラスフィルム４の後端部４ｂから後方側へ食み出している。保護フィルム７は、ガラスフィルム４の第一主表面４ｃと直接粘着される。また、保護フィルム７の前方側の食み出し部７ｘは、第一リードフィルム５と直接粘着され、保護フィルム７の後方側の食み出し部７ｙは、第二リードフィルム６と直接粘着されている。ここで、直接粘着されている状態とは、保護フィルム７の基材と、ガラスフィルム４（又はリードフィルム５，６）との間に、保護フィルム７の粘着層のみが介在している状態を意味する。言い換えると、保護フィルム７が、ガラスフィルム４と第一リードフィルム５を接続し、ガラスフィルム４と第二リードフィルム６を接続している。これにより、ガラスフィルム４の第一主表面４ｃ側におけるガラスフィルム４の長手方向端部の近傍、および保護フィルム７の間に、テープ部材などの他の介在物が存在しない。したがって、ガラスフィルム４の第一主表面４ｃ側におけるガラスフィルム４の長手方向端部の近傍の段差を小さくしたり、段差自体をなくしたりすることができる。その結果、ガラスフィルム積層体３を巻き取る時や、巻き取ったガラスフィルム積層体３を繰り出して、ロール・ツー・ロール装置内を搬送する時に、ガラスフィルム４の長手方向端部の近傍でガラスフィルム４に局所的な曲げ応力が作用しにくくなり、ガラスフィルム４が破損するのを抑制できる。なお、図１では、保護フィルム７の食み出し部７ｘ，７ｙの長手方向の長さが十分に長く、ガラスフィルム４の第一主表面４ｃ側におけるガラスフィルム４の長手方向端部の近傍において、段差がない状態を図示している。 The protective film 7 protrudes forward from the front end 4a of the glass film 4 and protrudes rearward from the rear end 4b of the glass film 4. The protective film 7 is directly adhered to the first main surface 4c of the glass film 4. The protruding portion 7x on the front side of the protective film 7 is directly adhered to the first lead film 5, and the protruding portion 7y on the rear side of the protective film 7 is directly adhered to the second lead film 6. I have. Here, the state of being directly adhered refers to a state in which only the adhesive layer of the protective film 7 is interposed between the base material of the protective film 7 and the glass film 4 (or the lead films 5 and 6). means. In other words, the protective film 7 connects the glass film 4 and the first lead film 5, and connects the glass film 4 and the second lead film 6. Thus, there is no other inclusion such as a tape member near the longitudinal end of the glass film 4 on the first main surface 4c side of the glass film 4 and between the protective film 7. Therefore, a step near the longitudinal end of the glass film 4 on the first main surface 4c side of the glass film 4 can be reduced or the step itself can be eliminated. As a result, when the glass film laminate 3 is wound up, or when the rolled-up glass film laminate 3 is unwound and transported in a roll-to-roll apparatus, the glass near the longitudinal end of the glass film 4 is removed. Local bending stress is less likely to act on the film 4 and the glass film 4 can be prevented from being damaged. In FIG. 1, the lengths of the protruding portions 7x and 7y of the protective film 7 in the longitudinal direction are sufficiently long, and the portions near the longitudinal end of the glass film 4 on the first main surface 4c side of the glass film 4 are shown. And a state where there is no step.
　保護フィルム７の食み出し部７ｘ，７ｙの長手方向の長さは、特に限定されるものではないが、ガラスフィルム積層体３を巻き取った状態における最外層のガラスフィルム４のロール周長（一周）以上であることが好ましい。このようにすれば、最外層のガラスフィルム４の外周面および最内層のガラスフィルムの内周面を、リードフィルム５および保護フィルム７からなる二層で確実に覆うことができる。したがって、保護フィルム７の先端部７ａと第一リードフィルム５との間、および、保護フィルム７の後端部７ｂと第二リードフィルム６との間に形成される厚み差に起因する小さな段差も、ガラスフィルム４に直接影響しにくくなる。 The length in the longitudinal direction of the protruding portions 7x and 7y of the protective film 7 is not particularly limited, but the roll circumference of the outermost glass film 4 in a state where the glass film laminate 3 is wound up ( (One cycle) or more. In this way, the outer peripheral surface of the outermost glass film 4 and the inner peripheral surface of the innermost glass film can be reliably covered with the two layers of the lead film 5 and the protective film 7. Therefore, a small step caused by a thickness difference formed between the front end portion 7a of the protective film 7 and the first lead film 5 and between the rear end portion 7b of the protective film 7 and the second lead film 6 is also reduced. In addition, it is difficult to directly affect the glass film 4.
　ここで、外径側に位置する保護フィルム７の食み出し部７ｘと同様に、内径側に位置する食み出し部７ｙの長手方向の長さも、ガラスフィルム積層体３を巻き取った状態における最外層のガラスフィルム４のロール周長以上に設定している。その理由は、ロール・ツー・ロール装置で処理を行う度に、巻き取り方向の始端部の向きが入れ替わり、食み出し部７ｙが食み出し部７ｘよりも外径側に位置する場合も生じるためである。なお、ガラスフィルム積層体ロール１から繰り出したガラスフィルム積層体３を所定長さ毎に切断する場合など、ガラスフィルム積層体３を再度巻き取る必要がない場合には、内径側に位置する食み出し部７ｙの長手方向の長さは、ガラスフィルム積層体３を巻き取った状態における最内層のガラスフィルム４のロール周長以上に設定されていればよい。 Here, similarly to the protruding portion 7x of the protective film 7 located on the outer diameter side, the length in the longitudinal direction of the protruding portion 7y located on the inner diameter side is the same as when the glass film laminate 3 is wound. It is set to be equal to or longer than the roll circumference of the outermost glass film 4. The reason is that each time the roll-to-roll apparatus performs processing, the direction of the start end in the winding direction is switched, and the overhanging portion 7y is located on the outer diameter side of the overhanging portion 7x. That's why. In the case where it is not necessary to rewind the glass film laminate 3 such as when the glass film laminate 3 unwound from the glass film laminate roll 1 is cut at a predetermined length, the bite located on the inner diameter side may be used. The length of the extending portion 7y in the longitudinal direction may be set to be equal to or longer than the roll circumference of the innermost glass film 4 in the state where the glass film laminate 3 is wound.
　本実施形態では、ガラスフィルム４の第二主表面４ｄ側において、ガラスフィルム４の先端部４ａおよび第一リードフィルム５の後端部５ｂの両方が外部に露出すると共に、ガラスフィルム４の後端部４ｂおよび第二リードフィルム６の先端部６ａの両方が外部に露出している。これにより、ガラスフィルム４の第二主表面４ｄ側における長手方向端部の近傍においても、テープ部材などに起因する段差がない状態となる。 In the present embodiment, on the second main surface 4 d side of the glass film 4, both the front end 4 a of the glass film 4 and the rear end 5 b of the first lead film 5 are exposed to the outside, and the rear end of the glass film 4. Both the portion 4b and the tip 6a of the second lead film 6 are exposed to the outside. As a result, even in the vicinity of the longitudinal end on the second main surface 4d side of the glass film 4, there is no step due to the tape member or the like.
　保護フィルム７の厚さは、ガラスフィルム積層体３が可撓性を有していれば特に限定されないが、可撓性を良好にする観点からは薄い方が好ましい。保護フィルム７の基材の厚さは、例えば、５～２００μｍであることが好ましく、１０～１００μｍであることがより好ましい。保護フィルム７の粘着層の厚さは、例えば、０．１～１００μｍであることが好ましく、２～２０μｍであることがより好ましい。 The thickness of the protective film 7 is not particularly limited as long as the glass film laminate 3 has flexibility, but is preferably thinner from the viewpoint of improving flexibility. The thickness of the base material of the protective film 7 is, for example, preferably 5 to 200 μm, and more preferably 10 to 100 μm. The thickness of the adhesive layer of the protective film 7 is, for example, preferably 0.1 to 100 μm, and more preferably 2 to 20 μm.
　保護フィルム７の幅方向の長さは、特に限定されるものではないが、本実施形態では、ガラスフィルム４よりも小さい。すなわち、保護フィルム７の幅方向両側からガラスフィルム４が食み出している。これにより、ガラスフィルム４に保護フィルム７を粘着させた状態のまま、ガラスフィルム４の幅方向端部に対して、ロール・ツー・ロール装置により連続的に所定の処理を行うことができる。なお、保護フィルム７の幅方向の長さは、ガラスフィルム４の幅方向の長さと同じであってもよいし、ガラスフィルム４の幅方向の長さよりも大きくてもよい。 The length of the protective film 7 in the width direction is not particularly limited, but is smaller than the glass film 4 in the present embodiment. That is, the glass film 4 protrudes from both sides in the width direction of the protective film 7. Thereby, the predetermined process can be continuously performed by the roll-to-roll apparatus with respect to the width direction edge part of the glass film 4 with the protective film 7 adhered to the glass film 4. The length of the protective film 7 in the width direction may be the same as the length of the glass film 4 in the width direction, or may be larger than the length of the glass film 4 in the width direction.
　保護フィルム７の基材の材質としては、樹脂が好ましい。具体的には、保護フィルム７の基材の材質としては、リードフィルム５，６で例示した同様の材質を選択することができる。中でも、保護フィルム７の基材は、ＰＥＴフィルムであることが好ましい。 樹脂 As a material of the base material of the protective film 7, a resin is preferable. Specifically, as the material of the base material of the protective film 7, the same material as exemplified for the lead films 5 and 6 can be selected. In particular, the base material of the protective film 7 is preferably a PET film.
　保護フィルム７の粘着層としては、例えば、光学透明粘着シート（ＯＣＡ）、感圧粘着シート（ＰＳＡ）などが使用できる。粘着層の粘着成分としては、アクリル系接着剤、シリコン系接着剤、エポキシ系接着剤、光硬化性接着剤（例えば紫外線硬化性接着剤）などが利用できる。 粘着 As the adhesive layer of the protective film 7, for example, an optical transparent adhesive sheet (OCA), a pressure-sensitive adhesive sheet (PSA), or the like can be used. As the adhesive component of the adhesive layer, an acrylic adhesive, a silicone adhesive, an epoxy adhesive, a photocurable adhesive (for example, an ultraviolet curable adhesive), or the like can be used.
　保護フィルム７の粘着層は微粘着性を有することが好ましい。これにより、ガラスフィルム４から保護フィルム７を容易に剥離することが可能となる。ここで、「微粘着性」とは、１８０°剥離強度試験（ＪＩＳ　Ｚ　０２３７：２００９に準拠）により測定した粘着力（剥離強度）が、０．０１～１Ｎ／２５ｍｍであることを意味する。 粘着 The adhesive layer of the protective film 7 preferably has a slight adhesiveness. Thereby, it is possible to easily peel off the protective film 7 from the glass film 4. Here, "slight adhesion" means that the adhesive strength (peel strength) measured by a 180 ° peel strength test (based on JIS Z # 0237: 2009) is 0.01 to 1 N / 25 mm.
　なお、ガラスフィルム積層体３は、保護フィルム７側を内側にしてコア２の周囲に巻かれていてもよいが、本実施形態では、図１に示すように、ガラスフィルム積層体３は、保護フィルム７側を外側にしてコア２の周囲に巻かれている。 The glass film laminate 3 may be wound around the core 2 with the protective film 7 side inside, but in the present embodiment, as shown in FIG. It is wound around the core 2 with the film 7 side facing out.
　また、保護フィルム７の幅方向の長さをガラスフィルム４の幅方向の長さよりも大きくする場合、図４に示すように、リードフィルム５，６の幅方向の長さも、ガラスフィルム４の幅方向の長さより大きくしてもよい。同図では、リードフィルム５，６の幅方向の長さが、ガラスフィルム４の幅方向の長さよりも大きく、かつ、保護フィルム７の幅方向の長さと実質的に同じ大きさとなっている。 When the length of the protective film 7 in the width direction is set to be larger than the length of the glass film 4 in the width direction, as shown in FIG. It may be larger than the length in the direction. In the figure, the length of the lead films 5 and 6 in the width direction is larger than the length of the glass film 4 in the width direction, and is substantially the same as the length of the protection film 7 in the width direction.
（第二実施形態）
　図５に示すように、第二実施形態に係るガラスフィルム積層体ロール１が、第一実施形態に係るガラスフィルム積層体ロール１と相違するところは、ガラスフィルム４の第二主表面４ｄ側、すなわち、保護フィルム７が粘着された面とは反対側の面において、ガラスフィルム４の先端部４ａと第一リードフィルム５の後端部５ｂの両方に跨るように第一テープ部材２１が粘着されると共に、ガラスフィルム４の後端部４ｂと第二リードフィルム６の先端部６ａの両方に跨るように第二テープ部材２２が粘着されている点である。なお、その他の共通する構成については同一符号を付して詳しい説明を省略する。 (Second embodiment)
As shown in FIG. 5, the glass film laminate roll 1 according to the second embodiment is different from the glass film laminate roll 1 according to the first embodiment in that the glass film 4 has a second main surface 4d side, That is, the first tape member 21 is adhered so as to straddle both the front end 4a of the glass film 4 and the rear end 5b of the first lead film 5 on the surface opposite to the surface to which the protective film 7 is adhered. In addition, the second tape member 22 is adhered so as to straddle both the rear end portion 4b of the glass film 4 and the front end portion 6a of the second lead film 6. Note that the same reference numerals are given to other common components, and detailed description thereof will be omitted.
　ガラスフィルム４の先端部４ａおよび第一リードフィルム５の後端部５ｂは、保護フィルム７と第一テープ部材２１とにより、厚み方向の両側から堅固に固定されている。同様に、ガラスフィルム４の後端部４ｂおよび第二リードフィルム６の先端部６ａが、保護フィルム７と第二テープ部材２２とにより、厚み方向の両側から堅固に固定されている。そのため、ガラスフィルム４および／又はリードフィルム５，６の長手方向端部が保護フィルム７から不用意に剥がれにくくなる。したがって、保護フィルム７の粘着面が外部に露出しにくく、粘着面の粘着剤によって周囲環境が汚染されるのを防止できる。特に、このような効果は、ロール・ツー・ロール装置の搬送ローラに、ガラスフィルム４の第二主表面４ｄ側が外側（凸側）になるように、ガラスフィルム積層体３を巻き掛けた場合に有用となる。 先端 The front end 4a of the glass film 4 and the rear end 5b of the first lead film 5 are firmly fixed from both sides in the thickness direction by the protective film 7 and the first tape member 21. Similarly, the rear end portion 4b of the glass film 4 and the front end portion 6a of the second lead film 6 are firmly fixed by the protective film 7 and the second tape member 22 from both sides in the thickness direction. Therefore, the longitudinal ends of the glass film 4 and / or the lead films 5 and 6 are less likely to be inadvertently peeled off the protective film 7. Therefore, the adhesive surface of the protective film 7 is hardly exposed to the outside, and the surrounding environment can be prevented from being contaminated by the adhesive on the adhesive surface. In particular, such an effect is obtained when the glass film laminate 3 is wound around the transport roller of the roll-to-roll device such that the second main surface 4d side of the glass film 4 is outside (convex side). Will be useful.
　テープ部材２１，２２の厚さは、可撓性を有していれば特に限定されないが、ガラスフィルム４の長手方向端部の近傍における段差を小さくする観点からは薄い方が好ましい。テープ部材２１，２２の基材の厚さは、例えば、５～２００μｍであることが好ましく、１０～１００μｍであることがより好ましい。テープ部材２１，２２の粘着層の厚さは、例えば、０．１～１００μｍであることが好ましく、０．２～２０μｍであることがより好ましい。 The thickness of the tape members 21 and 22 is not particularly limited as long as the tape members 21 and 22 have flexibility. However, it is preferable that the tape members 21 and 22 be thin from the viewpoint of reducing the level difference near the longitudinal end of the glass film 4. The base material of the tape members 21 and 22 preferably has a thickness of, for example, 5 to 200 μm, and more preferably 10 to 100 μm. The thickness of the adhesive layers of the tape members 21 and 22 is preferably, for example, 0.1 to 100 μm, and more preferably 0.2 to 20 μm.
　テープ部材２１，２２の長手方向の長さは、特に限定されるものではないが、本実施形態では、テープ部材２１，２２の粘着範囲がガラスフィルム４の長手方向端部の近傍に限定される長さとされている。 Although the length in the longitudinal direction of the tape members 21 and 22 is not particularly limited, in the present embodiment, the adhesive range of the tape members 21 and 22 is limited to the vicinity of the longitudinal end of the glass film 4. It is length.
　テープ部材２１，２２の幅方向の長さは、特に限定されるものではないが、ガラスフィルム４の全幅に亘って粘着されていることが好ましい。望ましくは、テープ部材２１，２２がガラスフィルム４の幅から食み出すのを防止するために、テープ部材２１，２２の幅方向の長さは、ガラスフィルム４の全幅よりも僅かに短い状態で設けられる。テープ部材２１，２２の幅方向の長さは、テープ部材２１，２２の長手方向の長さよりも大きい。 The length of the tape members 21 and 22 in the width direction is not particularly limited, but is preferably adhered over the entire width of the glass film 4. Desirably, in order to prevent the tape members 21 and 22 from protruding from the width of the glass film 4, the length in the width direction of the tape members 21 and 22 is slightly shorter than the entire width of the glass film 4. Provided. The length of the tape members 21 and 22 in the width direction is larger than the length of the tape members 21 and 22 in the longitudinal direction.
　テープ部材２１，２２の基材の材質としては、樹脂フィルムが好ましい。具体的には、テープ部材２１，２２の基材の材質としては、リードフィルム５，６で例示した同様の材質を選択することができる。中でも、テープ部材２１，２２の基材は、ＰＥＴフィルムであることが好ましい。 樹脂 As a material of the base material of the tape members 21 and 22, a resin film is preferable. Specifically, as the material of the base material of the tape members 21 and 22, the same material as exemplified for the lead films 5 and 6 can be selected. Among them, the base material of the tape members 21 and 22 is preferably a PET film.
　テープ部材２１，２２の粘着層としては、保護フィルム７の粘着層で例示した同様の材料を選択することができる。なお、テープ部材２１，２２の粘着層の粘着力は、保護フィルム７の粘着層の粘着力と実質的に同じであってもよいが、本実施形態では、保護フィルム７の粘着層の粘着力よりも強い。 As the adhesive layer of the tape members 21 and 22, the same material as exemplified in the adhesive layer of the protective film 7 can be selected. The adhesive strength of the adhesive layers of the tape members 21 and 22 may be substantially the same as the adhesive strength of the adhesive layer of the protective film 7, but in the present embodiment, the adhesive strength of the adhesive layer of the protective film 7. Stronger than.
　本発明は上記の実施形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲内において、更に種々なる形態で実施し得る。 The present invention is not limited to the above-described embodiment at all, and may be implemented in various other forms without departing from the gist of the present invention.
　上記の実施形態では、ガラスフィルム積層体３のみをコア２の周囲に巻き取る場合を説明したが、合紙などの粘着層を有さない介在フィルム（図示省略）をガラスフィルム積層体３に剥離可能に重ね、これらを一緒にコア２の周囲に巻き取ってもよい。介在フィルムは、ガラスフィルム４の第二主表面４ｄに重ねることが好ましい。なお、介在フィルムは、ガラスフィルム４の第一主表面４ｃ側、すなわち、保護フィルム７に重ねてもよい。 In the above embodiment, the case where only the glass film laminate 3 is wound around the core 2 has been described. However, an intervening film (not shown) having no adhesive layer such as interleaf paper is peeled off from the glass film laminate 3. They may be overlapped as much as possible and wound together around the core 2. The intervening film is preferably overlapped on the second main surface 4d of the glass film 4. The intervening film may be stacked on the first main surface 4c side of the glass film 4, that is, on the protective film 7.
　上記の実施形態において、ガラスフィルム４の先端部４ａと第一リードフィルム５の後端部５ｂに対応する部分と、ガラスフィルム４の後端部４ｂと第二リードフィルム６の先端部６ａに対応する部分とにおいて、他の部分よりも保護フィルム７の粘着力を局所的に強くしてもよい。このようにすれば、ガラスフィルム４および／又はリードフィルム５，６の長手方向端部が保護フィルム７から不用意に剥がれにくくなる。 In the above embodiment, a portion corresponding to the front end portion 4a of the glass film 4 and the rear end portion 5b of the first lead film 5, and a portion corresponding to the rear end portion 4b of the glass film 4 and the front end portion 6a of the second lead film 6. The adhesive strength of the protective film 7 may be locally increased at the portion where the protection film 7 is formed. In this way, the longitudinal ends of the glass film 4 and / or the lead films 5 and 6 are less likely to be inadvertently peeled off the protective film 7.
　上記の実施形態では、ガラスフィルム４の先端部４ａと後端部４ｂのそれぞれにリードフィルム５，６を連接する場合を説明したが、ガラスフィルム４の先端部４ａと後端部４ｂのいずれか一方のみにリードフィルムを連接するようにしてもよい。 In the above-described embodiment, the case where the lead films 5 and 6 are connected to the leading end portion 4a and the trailing end portion 4b of the glass film 4 has been described, but any one of the leading end portion 4a and the trailing end portion 4b of the glass film 4 will be described. The lead film may be connected only to one side.
１　　ガラスフィルム積層体ロール
２　　コア
３　　ガラスフィルム積層体
４　　ガラスフィルム
５　　第一リードフィルム
６　　第二リードフィルム
７　　保護フィルム
８　　隙間
２１　第一テープ部材
２２　第二テープ部材
  REFERENCE SIGNS LIST 1 glass film laminate roll 2 core 3 glass film laminate 4 glass film 5 first lead film 6 second lead film 7 protective film 8 gap 21 first tape member 22 second tape member

Claims (5)

  1. 　ガラスフィルム積層体を巻き取って形成されたガラスフィルム積層体ロールにおいて、
    　前記ガラスフィルム積層体が、長尺なガラスフィルムと、前記ガラスフィルムの少なくとも一方の長手方向端部に連接されたリードフィルムと、前記ガラスフィルムを保護するために前記ガラスフィルムの主表面に粘着された保護フィルムと、を備え、
    　前記保護フィルムが、前記ガラスフィルムの長手方向端部より前記リードフィルム側へ食み出しており、
    　前記保護フィルムおよび前記ガラスフィルムの長手方向端部が直接粘着されると共に、前記保護フィルムおよび前記リードフィルムの長手方向端部が直接粘着されていることを特徴とするガラスフィルム積層体ロール。     In a glass film laminate roll formed by winding the glass film laminate,
    The glass film laminate is a long glass film, a lead film connected to at least one longitudinal end of the glass film, and adhered to a main surface of the glass film to protect the glass film. With a protective film,
    The protective film protrudes from the longitudinal end of the glass film toward the lead film,
    A glass film laminate roll, wherein the longitudinal ends of the protective film and the glass film are directly adhered, and the longitudinal ends of the protective film and the lead film are directly adhered.
  2. 　前記保護フィルムのうち、前記ガラスフィルムの長手方向端部より前記リードフィルム側に食み出した部分の長手方向の長さが、最外層の前記ガラスフィルムのロール周長以上であることを特徴とする請求項１に記載のガラスフィルム積層体ロール。 In the protective film, the length in the longitudinal direction of the portion protruding from the longitudinal end of the glass film toward the lead film side is equal to or more than the roll circumference of the outermost layer of the glass film. The glass film laminate roll according to claim 1.
  3. 　前記ガラスフィルム積層体を平面上に展開した場合に、前記保護フィルムが粘着された面とは反対側の面で、前記ガラスフィルムの長手方向端部および前記リードフィルムの長手方向端部の両方が外部に露出していることを特徴とする請求項１又は２に記載のガラスフィルム積層体ロール。 When the glass film laminate is developed on a flat surface, on the surface opposite to the surface to which the protective film is adhered, both the longitudinal end of the glass film and the longitudinal end of the lead film are The glass film laminate roll according to claim 1 or 2, which is exposed to the outside.
  4. 　前記ガラスフィルム積層体を平面上に展開した場合に、前記保護フィルムが粘着された面とは反対側の面で、前記ガラスフィルムの長手方向端部および前記リードフィルムの長手方向端部の両方に粘着されたテープ部材を備えていることを特徴とする請求項１又は２に記載のガラスフィルム積層体ロール。 When the glass film laminate is unfolded on a plane, the surface opposite to the surface to which the protective film is adhered, on both the longitudinal end of the glass film and the longitudinal end of the lead film. The glass film laminate roll according to claim 1 or 2, further comprising a tape member that is adhered.
  5. 　前記ガラスフィルムの長手方向端部および前記リードフィルムの長手方向端部の間に、隙間が形成されていることを特徴とする請求項１～４のいずれか１項に記載のガラスフィルム積層体ロール。 The glass film laminate roll according to any one of claims 1 to 4, wherein a gap is formed between a longitudinal end of the glass film and a longitudinal end of the lead film. .
PCT/JP2019/031230 2018-08-28 2019-08-07 Glass film laminate roll WO2020045010A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-159224 2018-08-28
JP2018159224A JP2020032563A (en) 2018-08-28 2018-08-28 Glass film laminate roll

Publications (1)

Publication Number Publication Date
WO2020045010A1 true WO2020045010A1 (en) 2020-03-05

Family

ID=69644863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/031230 WO2020045010A1 (en) 2018-08-28 2019-08-07 Glass film laminate roll

Country Status (3)

Country Link
JP (1) JP2020032563A (en)
TW (1) TW202019801A (en)
WO (1) WO2020045010A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116157260A (en) * 2020-07-17 2023-05-23 康宁股份有限公司 Glass roller

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012090693A1 (en) * 2010-12-28 2012-07-05 コニカミノルタホールディングス株式会社 Glass roll treatment device and treatment method
JP2013035158A (en) * 2011-08-04 2013-02-21 Dainippon Printing Co Ltd Glass film laminate, glass film laminate roll, glass film laminate with pixel for color filter, and method for producing glass film laminate
JP2013544228A (en) * 2010-11-30 2013-12-12 コーニング インコーポレイテッド Structure and method for joining glass ribbons
JP2014136664A (en) * 2013-01-17 2014-07-28 Nitto Denko Corp Thin glass elongated body
JP2017077995A (en) * 2015-10-21 2017-04-27 日本電気硝子株式会社 Glass roll production method, and glass roll
JP2017105630A (en) * 2015-11-26 2017-06-15 日本電気硝子株式会社 Manufacturing method of glass roll, and glass roll
JP2017534489A (en) * 2014-10-20 2017-11-24 テーザ・ソシエタス・ヨーロピア Glass thin film composite web with reinforcing strip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5874159B2 (en) * 2010-08-31 2016-03-02 日本電気硝子株式会社 GLASS-RESIN LAMINATE, GLASS ROLL WASTING THE SAME, AND GLASS ROLL MANUFACTURING METHOD
JP2015134705A (en) * 2013-12-20 2015-07-27 日本電気硝子株式会社 Film-like connector, and glass roll
JP2017043366A (en) * 2015-08-24 2017-03-02 日本電気硝子株式会社 Glass roll, method of manufacturing the same, and unwinding method for the same
JP6699159B2 (en) * 2015-12-17 2020-05-27 日本電気硝子株式会社 Glass roll and manufacturing method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013544228A (en) * 2010-11-30 2013-12-12 コーニング インコーポレイテッド Structure and method for joining glass ribbons
WO2012090693A1 (en) * 2010-12-28 2012-07-05 コニカミノルタホールディングス株式会社 Glass roll treatment device and treatment method
JP2013035158A (en) * 2011-08-04 2013-02-21 Dainippon Printing Co Ltd Glass film laminate, glass film laminate roll, glass film laminate with pixel for color filter, and method for producing glass film laminate
JP2014136664A (en) * 2013-01-17 2014-07-28 Nitto Denko Corp Thin glass elongated body
JP2017534489A (en) * 2014-10-20 2017-11-24 テーザ・ソシエタス・ヨーロピア Glass thin film composite web with reinforcing strip
JP2017077995A (en) * 2015-10-21 2017-04-27 日本電気硝子株式会社 Glass roll production method, and glass roll
JP2017105630A (en) * 2015-11-26 2017-06-15 日本電気硝子株式会社 Manufacturing method of glass roll, and glass roll

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116157260A (en) * 2020-07-17 2023-05-23 康宁股份有限公司 Glass roller

Also Published As

Publication number Publication date
TW202019801A (en) 2020-06-01
JP2020032563A (en) 2020-03-05

Similar Documents

Publication Publication Date Title
JP5806665B2 (en) Glass substrate having edge web portion
TWI733926B (en) Glass roll
KR101646479B1 (en) Continuous manufacturing method of optical display panels and continuous manufacturing system of optical display panels
WO2014030521A1 (en) Method for cutting composite sheet, method for cutting glass sheet, and cut piece of composite sheet
CN109922954B (en) Glass film-resin composite
WO2014088052A1 (en) Thin glass laminate
KR20160086855A (en) Glass film laminate and liquid crystal panel manufacturing method
US20170349395A1 (en) Glass webs and methods of splicing
WO2020045010A1 (en) Glass film laminate roll
JP2019532327A (en) Display unit manufacturing system
JP2013038060A (en) Masking film lamination light guide plate original plate
TWI821279B (en) Glass film-resin composite
JP7454555B2 (en) Transport method of glass film composite
JP5811660B2 (en) Glass film laminate and method for producing the same
TWI820120B (en) Glass film-resin composite
JP7192753B2 (en) glass roll
KR20180019167A (en) Method for manufacturing optical laminate
JP2015134705A (en) Film-like connector, and glass roll
JPWO2018194074A1 (en) Laminated body and method for producing the same
JP2012058574A (en) Cutting method of optical film for display, and manufacturing method using the same
WO2014178405A1 (en) Glass film laminate, and production method for electronic device
WO2020059389A1 (en) Method for producing flexible mold, flexible mold substrate and method for producing optical component

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19853653

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19853653

Country of ref document: EP

Kind code of ref document: A1