WO2017104364A1 - Rouleau de verre et procédé de fabrication de ce dernier - Google Patents

Rouleau de verre et procédé de fabrication de ce dernier Download PDF

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Publication number
WO2017104364A1
WO2017104364A1 PCT/JP2016/084671 JP2016084671W WO2017104364A1 WO 2017104364 A1 WO2017104364 A1 WO 2017104364A1 JP 2016084671 W JP2016084671 W JP 2016084671W WO 2017104364 A1 WO2017104364 A1 WO 2017104364A1
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WO
WIPO (PCT)
Prior art keywords
expansion
glass
core
glass roll
film
Prior art date
Application number
PCT/JP2016/084671
Other languages
English (en)
Japanese (ja)
Inventor
薫 鑑継
修二 秋山
直也 石田
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
Priority to CN201680054610.7A priority Critical patent/CN108025880B/zh
Priority to KR1020187004193A priority patent/KR102557121B1/ko
Publication of WO2017104364A1 publication Critical patent/WO2017104364A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/06—Forming glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Definitions

  • the present invention relates to a glass roll in which a glass film is wound around a winding core and a manufacturing method thereof, and more particularly to a technique for improving the peripheral structure of the winding core.
  • thin display devices such as liquid crystal displays and organic EL displays
  • mobile devices such as smartphones and tablet PCs that are rapidly spreading in recent years are required to be lightweight. Therefore, as a glass substrate employed in these devices, a glass film thinned into a film is practically used.
  • This glass film has a substantially rectangular shape at the final product stage, but is treated as a belt-like form at various processing steps including the previous manufacturing process.
  • this type of glass film has appropriate flexibility, it should be in the form of a glass roll wound around the core in consideration of convenience during handling, storage or transportation. Is customary. Thus, if it is set as the form of a glass roll, not only the handleability etc. of a glass film are excellent, but efficiency of work
  • this glass roll is formed of a thermoplastic resin such as vinyl chloride from the viewpoint of forming a core with a metal or reducing the weight. And the glass roll is manufactured by the tension
  • the glass roll manufactured in this way is packaged and shipped by a glass manufacturer or the like, and is carried into a device manufacturer or the like that manufactures the above various final products through long-distance transportation or the like.
  • the core of the glass roll is formed of a resin such as metal or vinyl chloride as described above, it has a characteristic that it easily expands due to a temperature rise.
  • the glass film wound around the core has a characteristic that it is difficult to stretch even if the temperature rises.
  • an object of the present invention is to effectively avoid a situation in which a glass film is damaged when the diameter of the core increases with an increase in the temperature of the glass roll.
  • the glass roll according to the present invention created to solve the above problems is characterized in that a glass film is wound around a composite core in which an expansion absorbent is wound around the core.
  • expansion absorption means that the expansion of the core is absorbed so that the glass film does not stretch following the expansion (increase in diameter) of the core.
  • the glass film is wound on the outer peripheral side of the expansion absorbent material that is a component of the composite core.
  • the increase in the diameter of the core is absorbed by the expansion absorbent and does not have a great influence on the glass film.
  • the diameter of the winding core increases, even if the glass film does not follow and expand, excessive tensile stress does not act on the glass film due to the expansion absorbing function of the expansion absorbent. As a result, breakage of the glass film is effectively avoided, and a non-defective glass roll can be maintained.
  • a cushioning material or cushioning sheet having an expansion absorption function or a cushioning material or cushion sheet having an expansion absorption function with respect to a wound glass film can be used.
  • the characteristic that the thickness of the member changes by 0.5 mm or more when the compressive stress acting in the radial direction of the member changes due to the change in the diameter of the core due to the temperature change It is preferable to have.
  • the expansion absorbent material is preferably a foamed resin sheet, and more preferably a foamed resin sheet having a thickness of 2 to 7 mm.
  • the foamed resin sheet makes it possible for the foamed resin sheet to sufficiently exhibit the expansion absorption function and appropriately prevent the glass film from being damaged due to the temperature rise of the glass roll.
  • the thickness of the foamed resin sheet is 2 to 7 mm, inhibition of the expansion absorption function due to the insufficient thickness is suppressed, and excessive quality due to the excessive thickness is also suppressed. That is, when the thickness of the foamed resin sheet is less than 2 mm, the expansion absorbing function may not be sufficiently exhibited.
  • the thickness of the foamed resin sheet exceeds 7 mm, the quality becomes excessive and the material is wasted. Therefore, if the thickness is within the above numerical range, such a problem can be avoided.
  • the expansion ratio of the foamed resin sheet is preferably 25 to 45%.
  • the foamed resin sheet can sufficiently exhibit the expansion absorption function from the material surface. That is, if the expansion ratio of the foamed resin sheet is less than 25%, the flexibility tends to be too small and too hard, so excessive tensile stress is likely to extend the glass film following the increase in the diameter of the core. May act. On the other hand, if the expansion ratio of the foamed resin sheet exceeds 45%, the flexibility tends to increase and the film tends to be too soft. There is a possibility that the resin sheet is unduly compressed. Therefore, if the expansion ratio is within the above numerical range, such a problem can be avoided.
  • the expansion absorber has a length corresponding to the entire circumferential length of the outer peripheral surface of the core and is wound around the core in a state where both ends in the circumferential direction are abutted. Is preferred.
  • the glass film can be smoothly made around the composite core without causing undue deformation or undue bending stress. It can be wound. This makes it possible to more reliably prevent the glass film from being damaged due to an increase in the diameter of the winding core accompanying a temperature rise.
  • the glass film may be wound around the composite core in a state where the glass film is connected to the leader.
  • the leader can be wound around the outer peripheral side of the expansion absorbent material and the inner peripheral side of the glass film.
  • the glass film is connected to the leader, if the expansion absorbent is not wound around the core, if the glass roll rises in temperature, the glass film will be damaged.
  • the inventors know as a result of research. And a leader is not connected with a glass film in order to exhibit the expansion
  • the glass film cannot be prevented from being damaged due to the temperature rise of the glass roll unless the expansion absorbing function by the expansion absorbing material is exhibited. This means that even if a leader is present on the inner layer side of the glass film, the glass film can be prevented from being damaged only after the expansion absorbing function by the expansion absorbent material existing on the inner layer side of the leader is exhibited. To do.
  • the thickness of the expansion absorbent is preferably 20 to 140 times the thickness of the leader.
  • the expansion absorbent material will fully exhibit the expansion absorption function, and the leader will also fully exhibit its original function, that is, the function of properly pulling the glass film. can do.
  • the glass film may be wound around the composite core in a state where the glass film is stacked on the protective sheet.
  • the glass sheets are not brought into contact with each other by the protective sheet, and it is difficult to cause adverse effects such as scratching the glass film.
  • the glass roll is wound around the core in a state where the glass film is overlaid on the protective sheet, if the expansion absorber is not fixed around the core, the glass roll
  • the present inventors have known that the glass film is damaged when the temperature of the roll rises.
  • a protective sheet is not overlaid on a glass film for the purpose of expansion
  • the glass film cannot be prevented from being damaged due to the temperature rise of the glass roll unless the expansion absorbing function by the expansion absorbent material is exhibited.
  • the protective sheet is present on the inner layer side of the glass fill, the glass film is prevented from being damaged only after the expansion absorbing function by the expansion absorbent material existing on the inner layer side of the protective sheet is exhibited.
  • the thickness of the expansion absorbent material is preferably 20 to 140 times the thickness of the protective sheet.
  • the expansion absorbent material sufficiently exhibits the expansion absorption function
  • the protective sheet also has its original function, that is, the glass film is hardly damaged and the glass film. It is possible to sufficiently exhibit the function of imparting an appropriate tension to the.
  • both ends of the expansion absorbent material in the width direction protrude from both ends of the glass film in the width direction.
  • both ends in the width direction of the expansion absorbent material protrude from both ends in the width direction of the leader.
  • both ends of the protective sheet in the width direction protrude from both ends of the expansion absorbent in the width direction.
  • the protective sheet first contacts the flange. And the contact between the expansion absorber and the flange are also avoided. Therefore, the glass film and the expansion absorber are appropriately protected.
  • one end in the longitudinal direction of the leader can be fixed to the expansion absorbent.
  • the leader can properly pull the glass film, and a high-quality glass roll can be obtained.
  • one end of the protective sheet in the longitudinal direction can be fixed to the reader.
  • one end of the protective sheet in the longitudinal direction can be fixed to the expansion absorbent material.
  • the glass roll manufacturing method according to the present invention which was created to solve the above-mentioned problems, includes a core manufacturing process for manufacturing a composite core in which an expansion absorbent is wound around the core, and a glass film on the composite core. And a winding step of winding the wire.
  • the glass roll can sufficiently protect the glass film against the temperature rise by the function of the expansion absorbent.
  • FIG. 1 is a perspective view showing a main part of a glass roll according to an embodiment of the present invention.
  • the glass roll 1 includes a composite core 4 in which an expansion absorbent 3 is wound around the core 2.
  • the expansion absorbent 3 prevents the expansion of the core 2 from being directly transmitted to the outer peripheral side when the diameter of the core 2 is increased by the expansion of the core 2 as the temperature of the glass roll 1 increases.
  • a cushioning material, a cushioning sheet, a cushioning material, or a cushion sheet having such an expansion absorbing function can be used.
  • a foamed resin sheet having such an expansion absorbing function is used. It has been.
  • the foamed resin sheet 3 as the expansion absorbent material is preferably made of a polyethylene foamed resin or the like.
  • the foamed resin sheet 3 as the expansion absorbent has a thickness T1 of 2 to 7 mm, preferably an upper limit of 6 mm and a lower limit of 3 mm, and a foaming ratio of 25. 45%, preferably the upper limit of the expansion ratio is 40% and the lower limit is 30%.
  • the length L1 of the foamed resin sheet 3 is the same as or substantially the same as the circumferential length of the outer peripheral surface 2a of the core 2. Therefore, the length L1 of the foamed resin sheet 3 corresponds to the circumferential length of the outer peripheral surface 2a of the core 2.
  • the tape body 5 which consists of resin etc.
  • the tape body 5 which has an adhesive surface or an adhesive surface on both surfaces is affixed on the both ends of the length direction of the foamed resin sheet 3, respectively.
  • the tape body 5 only needs to be attached to at least both ends in the length direction of the foamed resin sheet 3, and therefore one or more tape bodies are further attached to the intermediate portion in the length direction. Or various variations, such as sticking one tape body over the whole surface (all areas), are possible.
  • the foamed resin sheet 3 is fastened in a state of being wound around the core 2 by the tape body 5 (see FIG. 1). Therefore, the foamed resin sheet 3 is stuck so that it cannot be unwound from the outer peripheral surface 2 a of the core 2.
  • the foamed resin sheet 3 is fastened around the core 2 in a state where both end portions in the length direction are abutted.
  • the butted portions 6 at both ends in the length direction of the foamed resin sheet 3 are preferably in close contact, but a slight gap may be interposed.
  • the gap is preferably 0.1 to 3 mm with respect to the circumferential direction.
  • the expansion absorbent material 3 may be a cushioning material or cushioning material made of polypropylene, polyvinyl chloride, or the like, but has a thickness or foaming ratio that exhibits an expansion absorption function. It is necessary to have the following characteristics.
  • the width dimension of the expansion absorbent material 3 (dimension in the direction parallel to the axis of the core 2) is 100 mm or more in this embodiment, but preferably 300 mm or more, and more preferably 500 mm or more. Is more preferable, and it is still more preferable that it is 1000 mm or more.
  • the material of the core 2 is not particularly limited.
  • metals such as aluminum alloy, stainless steel, manganese steel, and carbon steel, phenol resin, urea resin, melamine resin, unsaturated polyester resin, epoxy Thermosetting resins such as resin, polyurethane, direal terephthalate resin, thermoplastic resins such as polyethylene, polypropylene, polystyrene, AS resin, ABS resin, methacrylic resin, vinyl chloride, glass for these thermosetting resins and thermoplastic resins Reinforced plastics in which reinforcing fibers such as fibers and carbon fibers are mixed can be used.
  • vinyl chloride is used.
  • FIG. 3 is a schematic perspective view showing the peripheral structure of the composite core 4 of the glass roll 1
  • FIG. 4 is a schematic side view showing the overall structure of the glass roll 1.
  • the expansion absorbent 3 of the composite core 4 has a start end portion 7a of a winding start side leader (hereinafter referred to as a winding start side leader) 7 having an adhesive surface or an adhesive surface on one side. It is fixed by a tape body 8 made of resin or the like.
  • the start end portion 9a of the glass film 9 is fixed to the terminal end portion 7b of the winding start side leader 7 by a pair of tape bodies 10 having the same configuration as described above, whereby the glass film 9 is connected to the winding start side leader 7. It is in the state.
  • the end portion 9b of the glass film 9 is fixed to a start end portion 11a of a winding end leader (hereinafter referred to as a winding end side leader) 11 by a pair of tape bodies 12 having the same configuration as described above.
  • the film end side leader 11 is connected to the film 9.
  • the start end portion 13a of the protective sheet 13 is fixed to the expansion absorbent 3 of the composite core 4 by the tape body 14 having the same configuration as described above.
  • the protective sheet 13 is fixed to the expansion absorbent material 3 so as to cover the start end portion 7 a of the winding start side leader 7, but the start end portion 13 a of the protection sheet 13 and the start end portion 7 a of the winding start side leader 7 are covered. May be fixed to the expansion absorbent material 3 by the tape bodies 8 and 14 at the same location.
  • the start end portion 13a of the protective sheet 13 and the start end portion 7a of the winding start side leader 7 are portions of the tape body 8 excluding the butted portions 6 at both ends in the length direction of the expansion absorbent material 3. , 14 are preferably fixed.
  • the glass film 9 is formed by, for example, a down draw method such as an overflow down draw method or a float method.
  • the thickness of the glass film 9 is preferably 300 ⁇ m or less, more preferably 200 ⁇ m or less, 100 ⁇ m or less, and further preferably 50 ⁇ m or less.
  • the thickness of the glass film 9 is preferably 1 ⁇ m or more, and more preferably 10 ⁇ m or more.
  • the width direction dimension of the glass film 9 is 100 mm or more in this embodiment, it is preferable that it is 300 mm or more among them, It is more preferable that it is 500 mm or more, It is still more preferable that it is 1000 mm or more.
  • the thickness and width of the winding start side leader 7 and the winding end side leader 11 are not particularly limited, but preferably have the same thickness and width as the glass film 9.
  • the thickness of these leaders 7 and 11 is preferably 1 to 200 ⁇ m, and the width dimension is 100 mm or more in the present embodiment, but among them, it is preferably 300 mm or more. 500 mm or more, more preferably 1000 mm or more.
  • the lengths of these leaders 7 and 11 are preferably 1 to 50 m.
  • resin films are used as these leaders 7 and 11, for example, polyethylene terephthalate film, ionomer film, polyethylene film, polypropylene film, polyvinyl chloride film, polyvinylidene chloride film, polyvinyl alcohol film, polyester film, polycarbonate film , Polystyrene film, polyacrylonitrile film, ethylene vinyl acetate copolymer film, ethylene-vinyl alcohol copolymer film, ethylene-methacrylic acid copolymer film, nylon (registered trademark) film (polyamide film), polyimide film, cellophane, etc.
  • Organic resin films synthetic resin films
  • aluminum, copper, etc. can be used, for example.
  • the thickness of the protective sheet 13 is 1000 ⁇ m or less, 500 ⁇ m or less, or 300 ⁇ m or less, and is 10 ⁇ m or more or 20 ⁇ m or more.
  • the width direction dimension of the protection sheet 13 is 100 mm or more in this embodiment, it is preferable that it is 300 mm or more among them, It is more preferable that it is 500 mm or more, It is still more preferable that it is 1000 mm or more.
  • examples of the protective sheet 13 include a polyethylene terephthalate film, an ionomer film, a polyethylene film, a polypropylene film, a polyvinyl chloride film, a polyvinylidene chloride film, a polyvinyl alcohol film, a polyester film, a polycarbonate film, a polystyrene film, and a polyacrylonitrile film.
  • Ethylene vinyl acetate copolymer film ethylene-vinyl alcohol copolymer film, ethylene-methacrylic acid copolymer film, nylon (registered trademark) film (polyamide film), polyimide film, cellophane and other organic resin films (synthetic resin) Film) and the like can be used.
  • FIG. 5 is a longitudinal front view showing in detail the main part of the glass roll 1.
  • the glass roll 1 is bonded to the glass film 9 and the glass film 9 in which the winding start side leader 7 and the winding end side leader 11 are connected around the expansion absorbent 3 of the composite core 4.
  • the protective sheet 13 stacked without being wound is wound, and flanges 15 are fixed to both ends of the core 2.
  • the width direction both ends 3x of the expansion absorbent material 3 protrude from the width direction both ends 7x and 11x of each of the winding start side leader 7 and the winding end side leader 11, and both the width direction ends of the glass film 9 It is also protruding from the part 9x.
  • the width direction both ends 13x of the protective sheet 13 protrude from the width direction both ends 7x, 11x, 9x of the winding start side leader 7, the winding end side reader 11, and the glass film 9, respectively.
  • the width direction dimension of the winding start side leader 7, the winding end side leader 11, and the glass film 9 is the same or substantially the same.
  • the width direction both ends 3x of the expansion absorbent material 3 may be aligned at the same position as the width direction both ends 9x of the glass film 9, and if small, the width direction both ends 9x of the glass film 9 are You may protrude from the width direction both ends 3x of the expansion absorbent material 3.
  • the width direction both ends 7x and 11x of each of the winding start side leader 7 and the winding end side leader 11 may be aligned at the same place as the width direction both ends 3x of the expansion absorbent material 3, and if slightly, The width direction both ends 7x and 11x of the winding start side leader 7 and the winding end side leader 11 may protrude from the width direction both ends 3x of the expansion absorbent material 3.
  • both end portions 13x in the width direction of the protective sheet 13 are not in contact with the flange 15, but they may be in contact with each other. Moreover, although the width direction both ends 3x of the expansion
  • the thickness T1 of the expansion absorbent 3 is 20 to 140 times, more preferably 30 to 130 times, and most preferably 40 to 120 times the thickness T2 of each of the winding start side leader 7 and the winding end side leader 11. ing.
  • the relationship between the thickness T1 of the expansion absorbent 3 and the thickness T3 of the glass film 9 is also the same.
  • the thickness T1 of the expansion absorbent material 3 is 20 to 140 times, more preferably 50 to 130 times, and most preferably 60 to 120 times the thickness T4 of the protective sheet 13.
  • the glass film 9 is an expansion absorbent that is a component of the composite core 4. 3
  • the increase in the diameter of the core 2 is absorbed by the expansion absorbent 3 and does not significantly affect the glass film 9. Therefore, when the diameter of the winding core 2 is increased, even if the glass film 9 does not stretch along with it, excessive tensile stress does not act on the glass film 9 due to the expansion absorbing function of the expansion absorbent material 3.
  • breakage of the glass film 9 is effectively avoided and the glass roll 1 as a non-defective product can be maintained.
  • a foamed resin sheet having a thickness of 2 to 7 mm and a foaming ratio of 25 to 45% is used as the expansion absorbent material 3
  • a sufficient expansion absorption function can be exhibited.
  • the expansion absorbent material 3 has a length corresponding to the entire length in the circumferential direction of the outer peripheral surface 2a of the core 2 and is fastened around the core 2 in a state where the ends in the circumferential direction are abutted with each other. Therefore, it can prevent that the expansion
  • the glass roll 1 has a winding start side leader 7 and a protective sheet 13 wound around the inner layer side of the glass film 9. It is greatly different and the expansion absorbing function cannot be exhibited like the expansion absorbing material 3. Therefore, damage prevention of the glass film 9 accompanying the above-mentioned temperature rise is brought about by the expansion absorption function of the expansion absorbent material 3.
  • this glass roll 1 (example shown in FIG. 5) has the width direction both ends 3x of the expansion absorber 3 protruding from the width direction both ends 9x of the glass film 9, the inner layer side of the glass film 9
  • the expansion absorbent material 3 exists over the entire length in the width direction. Therefore, while being able to obtain a stable winding state, it is possible to exhibit a uniform expansion absorbing function over the entire width direction with respect to the glass film 9.
  • this glass roll 1 (example shown in FIG. 5) has the width direction both ends 3x of the expansion absorber 3 projecting out from the width direction both ends 7x of the winding start side leader 7, the winding start side leader On the inner layer side of 7, the expansion absorbent material 3 exists over the entire length in the width direction. Also by this, a stable winding state can be obtained, and a uniform expansion absorbing effect can be exhibited over the entire width direction with respect to the winding start side leader 7 and thus the glass film 9.
  • the width direction both end portions 13x of the protective sheet 13 are the expansion absorbent material 3, the leaders 7, 11 and the width direction both end portions 3x, 7x, 11x of the protective sheet 13. Since it protrudes from 13x, even if the glass film 9 moves relatively close to the flange 15 due to vibration or impact during transportation, the protective sheet 13 first contacts the flange 15; And the flange 15 are avoided.
  • This manufacturing method is roughly divided into a core manufacturing process for manufacturing the composite core 4 and a winding process for winding the glass film 9 around the composite core 4 thereafter.
  • the expansion absorbent 3 is wound around the winding core 2 while leaving the longitudinal end portions 3y, and the expansion absorbent 3 is expanded and contracted. Adjust the height and position.
  • both end portions 3 y in the length direction of the expansion absorbent material 3 are attached to the outer peripheral surface 2 a of the core 2 with the tape body 5. Thereby, the composite core 4 in which the expansion absorbent 3 is wound around the core 2 is obtained.
  • the start end portion 7 a of the winding start side leader 7 and the start end portion 13 a of the protective sheet 13 are fixed to the expansion absorbent 3 of the composite core 4, and the winding start side
  • the protective sheet 13 and the glass film 9 are rolled around the composite core 4 while rotating the composite core 4 around the axis. Wind up. And when the glass film 9 is wound up to required length, it cut
  • this winding step is a glass film 9 that is formed by a molding apparatus such as a downdraw method or a float method and is continuously conveyed (for example, both ends in the width direction are cut off by laser cleaving during conveyance). Is wound around the composite core 4 together with the protective sheet 13 in the same manner as described above.
  • a molding apparatus such as a downdraw method or a float method
  • FIGS. 6a and 6b are schematic side views showing a modified example of the composite core 4 and the core manufacturing process.
  • the composite core 4 is formed by winding the expansion absorbent material 3 having a laminated structure formed by bonding a plurality of sheet materials (three foamed resin sheets in the illustrated example) 3b, 3c, and 3d around the core 2. Is.
  • the total thickness of the plurality of sheet materials 3b, 3c, 3d is the same as the thickness T1 of the foamed resin sheet 3 described above.
  • This modification is different from the above-described composite core 4 and core manufacturing process shown in FIGS. 6a and 6b only in that the expansion absorbent material 3 has a laminated structure. Elements are denoted by the same reference numerals and description thereof is omitted. According to this modification, even if the sheet materials 3b, 3c, and 3d have thickness variations, there is an advantage that the thickness variation can be reduced by forming them in a laminated structure.
  • FIG. 8 is a schematic perspective view showing a modified example of the mounting structure of the winding start side leader 7 and the protective sheet 13 with respect to the composite core 4, and FIG. 9 is a schematic side view showing the glass roll 1 according to the modified example. It is. As shown in these figures, the start end portion 7a of the winding start side leader 7 is fixed to the expansion absorbent 3 of the composite core 4, and the longitudinal direction intermediate portion (winding start side reader 7) of the winding start side reader 7 is fixed. The end portion 13a of the protective sheet 13 is fixed to the end portion 7b of the protective sheet 13 by a tape body 14. Since the other components are the same as those of the glass roll 1 shown in FIGS. 3 and 4 described above, the same reference numerals are given to the components common to both, and the description thereof is omitted. According to this modification, since the protective sheet 13 can be made short, there is an advantage that the usage amount can be reduced and the cost can be reduced.
  • the protective sheet 13 is wound around the composite core 4 without being bonded to the glass film 9, but instead, the protective sheet 13 is a glass film as a laminate film. It is good also as a structure wound around the composite core 4 in the state affixed on 9. Further, in such a case, the glass sheet 9 to which the laminate film is attached is wound around the composite core 4 in a state where a separate protective sheet is laminated without being bonded. It is good also as a structure.
  • the expansion absorbent 3 of the composite core 4 is in a state in which both ends in the length direction are abutted, but the core in a state in which both ends in the length direction are overlapped. It may be wound around 2. In that case, in order to prevent a large level difference from occurring on the outer peripheral surface of the expansion absorbent material 3, the thickness of the end face of the outermost layer of the expansion absorbent material 3 is gradually reduced as it moves to the end side. It is preferable to form it as follows.
  • a sheet such as a foamed resin sheet is used as the expansion absorbent 3 of the composite core 4 and is wound around the core 2.
  • a cylindrical sheet made of foamed resin or the like is used. It is good also as a structure which fits and winds a material to the core 2. As shown in FIG.

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Abstract

Un rouleau de verre (1) est formé par l'enroulement d'un film de verre (9) sur un mandrin d'enroulement composite (4) dans lequel un matériau absorbant la dilatation (3) est enroulé autour d'un noyau d'enroulement (2).
PCT/JP2016/084671 2015-12-17 2016-11-22 Rouleau de verre et procédé de fabrication de ce dernier WO2017104364A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201680054610.7A CN108025880B (zh) 2015-12-17 2016-11-22 玻璃卷及其制造方法
KR1020187004193A KR102557121B1 (ko) 2015-12-17 2016-11-22 유리 롤 및 그 제조 방법

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015246327A JP6699159B2 (ja) 2015-12-17 2015-12-17 ガラスロール及びその製造方法
JP2015-246327 2015-12-17

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JP2020032563A (ja) * 2018-08-28 2020-03-05 日本電気硝子株式会社 ガラスフィルム積層体ロール
JP7194571B2 (ja) * 2018-12-04 2022-12-22 日東電工株式会社 光学フィルム用巻き芯、光学フィルムロール体、及び光学フィルムの連続供給方法
JP7262703B2 (ja) 2019-06-11 2023-04-24 日本電気硝子株式会社 ガラスロールの製造方法
CN113874306A (zh) 2019-07-11 2021-12-31 日本电气硝子株式会社 玻璃卷的制造方法及制造装置
KR20240070246A (ko) * 2022-11-14 2024-05-21 코닝 인코포레이티드 유리 롤

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KR20180095497A (ko) 2018-08-27
KR102557121B1 (ko) 2023-07-19
CN108025880A (zh) 2018-05-11

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