WO2024107414A1 - Rouleau de verre - Google Patents

Rouleau de verre Download PDF

Info

Publication number
WO2024107414A1
WO2024107414A1 PCT/US2023/037228 US2023037228W WO2024107414A1 WO 2024107414 A1 WO2024107414 A1 WO 2024107414A1 US 2023037228 W US2023037228 W US 2023037228W WO 2024107414 A1 WO2024107414 A1 WO 2024107414A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
width
glass
glass ribbon
trailer
Prior art date
Application number
PCT/US2023/037228
Other languages
English (en)
Inventor
Junwoo Kim
Bae gwon KONG
Cheol Hee Park
Original Assignee
Corning Incorporated
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 Corning Incorporated filed Critical Corning Incorporated
Publication of WO2024107414A1 publication Critical patent/WO2024107414A1/fr

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
    • C03B40/005—Fabrics, felts or loose covers
    • 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/412—Roll
    • B65H2301/4124—Outer end attachment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4144—Finishing winding process
    • B65H2301/41441—Finishing winding process and blocking outer layers against falling apart
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/61—Display device manufacture, e.g. liquid crystal displays

Definitions

  • Thin glass is bendable and flexible. ⁇ Such bendable and flexible glass may be used for a flexible display, a wearable electronic device, and decorative materials for an interior and an exterior of a building. ⁇ Flexible glass may be rolled before it is stored, transported, and processed. ⁇ Thin glass may be vulnerable to breakage during transportation in a roll-to-roll process, and the breakage of glass may cause discontinuance of the glass transportation and further, the roll-to-roll process. ⁇ This may result in down-time and a significant waste of glass. SUMMARY [0004] Provided is a glass roll having an improved reliability in a roll-to-roll process.
  • a glass roll includes a winding core having a center axis parallel with a first direction, a glass ribbon wound on the winding core around the center axis, a leader film wound on the winding core around the center axis and attached to a front end of the glass ribbon, and a trailer film wound on the winding core around the center axis and attached to a rear end of the glass ribbon, wherein, in the first direction, a width of the leader film or a width of the trailer film may be greater than a width of the glass ribbon.
  • a plurality of side walls of the glass ribbon, which are arranged apart from each other in the first direction may not protrude more in the first direction than a plurality of side walls of the leader film, which are arranged apart from each other in the first direction, or a plurality of side walls of the trailer film, which are arranged apart from each other in the first direction.
  • the width of the glass ribbon in the first direction may be less than the width of the leader film in the first direction or the width of the trailer film in the first direction by about 1 mm to about 30 mm.
  • a center of the glass ribbon, a center of the leader film, and a center of the trailer film may be aligned in a second direction perpendicular to the first direction.
  • a vertical thickness of the glass ribbon may be about 0.05 mm to about 0.3 mm.
  • a glass roll includes a winding core having a center axis parallel with a first direction, a self-adhesive film wound on the winding core around the center axis, a glass ribbon wound on the winding core around the center axis, adhered onto the self-adhesive film, and including a plurality of side walls arranged apart from each other in the first direction, a leader film wound on the winding core around the center axis, attached to a front end of the glass ribbon, and including a plurality of side walls arranged apart from each other in the first direction, and a trailer film wound on the winding core around the center axis, attached to a rear end of the glass ribbon, and including a plurality of side walls arranged apart from each other in the first direction, wherein, in the first direction, a width of the leader film or a width of the trailer film may be greater than a width of the glass ribbon.
  • each of the plurality of side walls of the glass ribbon may not be aligned with each of the plurality of side walls of the leader film or each of the plurality of side walls of the trailer film in the first direction, and may be arranged on an inner side in the first direction of each of the plurality of side walls of the leader film or each of the plurality of side walls of the trailer film.
  • Attorney Docket No. SP22-261PCT [0013]
  • each of the width of the leader film in the first direction and the width of the trailer film in the first direction may be about 102 % to about 110 % of the width of the glass ribbon in the first direction.
  • the width of the leader film in the first direction may be identical to the width of the trailer film in the first direction.
  • a center of the self-adhesive film, a center of the glass ribbon, a center of the leader film, and a center of the trailer film may be aligned in a second direction perpendicular to the first direction.
  • each of the leader film and the trailer film may not overlap with the self-adhesive film in a vertical direction.
  • a width of the self-adhesive film in the first direction may be less than each of the width of the leader film and the width of the trailer film. [0018] In some embodiments, the width of the glass ribbon in the first direction may be about 75 % to about 100 % of a width of the self-adhesive film in the first direction.
  • a glass roll includes a winding core including an external surface and having a center axis parallel with a first direction, and a glass package comprising a self-adhesive film including an upper surface and a lower surface, which face each other, a glass ribbon including a lower surface adhered to the upper surface of the self-adhesive film, a leader film attached to a front end of the glass ribbon, and a trailer film attached to a rear end of the glass ribbon, wherein, in the first direction, a width of the leader film or a width of the trailer film may be greater than a width of the glass ribbon, in a cross-section of the glass roll, which is parallel to the central axis and along an entire length of the glass roll, cross- sections of the self-adhesive film may alternate with cross-sections of the glass ribbon, and a center of the glass ribbon, a center of the leader film, and a center of the trailer film may be aligned in a second
  • the width of the leader film in the first direction may be identical to the width of the trailer film in the first direction and may be about 102 % to about 110 % of the width of the glass ribbon in the first direction.
  • each of the leader film and the trailer film may include a plurality of side walls arranged apart from each other in the first direction, and each of the plurality of side walls of the leader film may be aligned with each of the plurality of side walls of the trailer film in the first direction.
  • the width of the glass ribbon in the first direction may be greater than a width of the self-adhesive film in the first direction by about 5 mm to about 30 mm.
  • a width of the glass ribbon in the second direction may be identical to a width of the self-adhesive film in the second direction.
  • an entire part of the self- adhesive film may overlap with the glass ribbon in a vertical direction.
  • a thickness of the glass ribbon in a vertical direction may be greater than or equal to a thickness of the self-adhesive film in the vertical direction.
  • FIG.1 is a plane view of a winding core and a glass package according to an embodiment before forming a glass roll
  • FIG.2 is a cross-sectional view parallel with a Y-Z plane to illustrate a cross- section of a winding core and a glass package according to an embodiment before forming a glass roll
  • FIG.3 is a perspective view of a glass roll according to an embodiment
  • FIG.4 is a cross-sectional view parallel with a Y-Z plane to illustrate a cross- section of a glass roll according to an embodiment
  • FIG.5 is a cross-sectional view parallel with a X-Y plane to illustrate a cross- section of a glass roll according to an embodiment.
  • FIG.1 is a plane view of a winding core and a glass package according to an embodiment before forming a glass roll.
  • FIG.2 is a cross-sectional view parallel with a Y-Z plane to illustrate a cross-section of a winding core and a glass package according to an embodiment before forming a glass roll.
  • a winding core 100 may include an external surface 100a.
  • the winding core 100 may have a cylindrical shape.
  • the winding core 100 may further include an internal surface 100b. ⁇ However, unlike the description of FIG.2, the winding core 100 may have a filled cylindrical shape.
  • a glass package 200 may include a self-adhesive film 210 and a glass ribbon 220 on the self-adhesive film 210.
  • the self-adhesive film 210 may include a lower surface 210a and an upper surface 210b, which face each other.
  • the lower surface 210a of the self-adhesive film 210 may be a non-adhesive surface which does not have adhesive properties
  • the upper surface 210b of the self-adhesive film 210 may be an adhesive surface which has adhesive properties.
  • the self- adhesive film 210 may include, for example, polyolefine (PO), polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), ethylene-vinyl acetate (EVA), polyamide (PA), or a combination thereof.
  • the self-adhesive film 210 may not be in a form of foam, and may include little bubbles.
  • the self-adhesive film 210 may be used as a carrier for transporting the glass ribbon 220.
  • the glass ribbon 220 is Attorney Docket No. SP22-261PCT slightly damaged during transportation of the glass ribbon 220 in a roll-to-roll process, pieces of the glass ribbon 220 may adhere to the self-adhesive film 210, and the transportation of the glass ribbon 220 may be continued.
  • the possibility of discontinuance of the roll-to-roll process and transportation of the glass ribbon 220 due to the breakage of the glass ribbon 220 may be reduced.
  • the self- adhesive film 210 functioning as a carrier may provide proper frictional force to a surface of a conveyer, and thus facilitate the transportation of the glass ribbon 220.
  • the glass ribbon 220 may have a lower surface 220a and an upper surface 220b, which face each other.
  • the glass ribbon 220 may include a first side wall 220S1 and a second side wall 220S2, which are arranged apart from each other in a first horizontal direction (X direction).
  • the lower surface 220a of the glass ribbon 220 may adhere to the upper surface 210b of the self-adhesive film 210, i.e., the adhesive surface 210b of the self-adhesive film 210.
  • the glass ribbon 220 may include, for example, silicate glass, borosilicate glass, aluminosilicate glass, boroaluminosilicate glass, or a combination thereof, and each of the foregoing may or may not include alkali element(s).
  • the glass ribbon 220 may be, for example, Willow ® glass available from Corning Incorporated.
  • a direction parallel with a main surface of the glass ribbon 220 may be defined as a horizontal direction (X direction and/or Y direction), and a direction perpendicular to the main surface of the glass ribbon 220 may be defined as a vertical direction (Z direction).
  • X direction and/or Y direction a direction parallel with a main surface of the glass ribbon 220
  • Z direction a direction perpendicular to the main surface of the glass ribbon 220
  • an extension direction of a shorter side may be defined as a first horizontal direction (X direction)
  • an extension direction of a longer side may be defined as a second horizontal direction (Y direction).
  • the glass package 200 may further include a leader film 230 adhered to the upper surface 210b of the self-adhesive film 210 and attached to a front end of the glass ribbon 220.
  • the leader film 230 may have a lower surface 230a and an upper surface 230b, which face each other.
  • the leader film 230 may include a first side wall 230S1 and a second side wall 230S2, which are arranged apart from each other in the first horizontal direction (X direction).
  • the lower surface 230a of the leader film 230 may adhere to the upper surface 210b of the self- adhesive film 210.
  • the leader film 230 may include, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), or Attorney Docket No.
  • the glass package 200 may further include a trailer film 240 adhered to the upper surface 210b of the self-adhesive film 210 and attached to a rear end of the glass ribbon 220.
  • the trailer film 240 may have a lower surface 240a and an upper surface 240b, which face each other.
  • the trailer film 240 may include a first side wall 240S1 and a second side wall 240S2, which are arranged apart from each other in the first horizontal direction (X direction).
  • the lower surface 240a of the trailer film 240 may adhere to the upper surface 210b of the self-adhesive film 210.
  • the trailer film 240 may include, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), or a combination thereof.
  • the trailer film 240 may include, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), or a combination thereof.
  • the glass package 200 may be wound on the winding core 100 such that the lower surface 210a of the self-adhesive film 210 is directed toward the external surface 100a of the winding core 100 to form a glass roll 1000 (see FIGS. 3 to 5) to be described in detail with reference to FIGS.3 to 5.
  • a second thickness T2 which is a thickness between the lower surface 220a and the upper surface 220b of the glass ribbon 220 in the vertical direction (Z direction), may be about 0.05 mm to about 0.3 mm. ⁇ When the second thickness T2 of the glass ribbon 220 is less than about 0.05 mm, it may be difficult to handle the glass ribbon 220 and form a glass roll. ⁇ When the second thickness T2 of the glass ribbon 220 is greater than about 0.3 mm, the glass ribbon 220 may be less flexible, which may cause difficulties in bending the glass ribbon 220 to form a glass roll.
  • a first thickness T1 which is a thickness between the lower surface 210a and the upper surface 210b of the self-adhesive film 210 in the vertical direction (Z direction), may be less than the second thickness T2 of the glass ribbon 220.
  • the volume of glass roll may be reduced, compared to the existing glass rolls, or more glass may be wound in a glass roll of the same volume.
  • the first thickness T1 of the self-adhesive film 210 may be, for example, about 0.01 mm to about 0.25 mm.
  • the volume of glass roll is very large, and less glass is wound in a glass roll of the same volume. ⁇
  • the volume of the glass roll may be reduced, or more glass may be wound in a glass roll of the same volume.
  • a third thickness T3, which is a thickness between the lower surface 230a and the upper surface 230b of the leader film 230 in the vertical direction (Z direction), and a fourth thickness T4, which is a thickness between the lower surface 240a and the upper surface 240b of the trailer film 240 in the vertical direction (Z direction), may be identical to the second thickness T2 of the glass ribbon 220.
  • the third thickness T3 of the leader film 230 and the fourth thickness T4 of the trailer film 240 may be greater than or less than the second thickness T2 of the glass ribbon 220.
  • the self-adhesive film 210 may have a first width W1
  • the glass ribbon 220 may have a second width W2
  • the leader film 230 may have a third width W3
  • the trailer film 240 may have a fourth width W4.
  • the third width W3 of the leader film 230 and/or the fourth width W4 of the trailer film 240 may be greater than the second width W2 of the glass ribbon 220.
  • the third width W3 of the leader film 230 and/or the fourth width W4 of the trailer film 240 may be greater than the second width W2 of the glass ribbon 220 by about 1 mm to about 30 mm.
  • the third width W3 of the leader film 230 and/or the fourth width W4 of the trailer film 240 may be greater than the second width W2 of the glass ribbon 220 by about 2 % to about 10 %.
  • the third width W3 of the leader film 230 and/or the fourth width W4 of the trailer film 240 is less than or equal to the second width W2 of the glass ribbon 220, an edge of the glass ribbon 220 may be damaged during transportation and/or processing of the glass roll 1000 (see FIG.3).
  • the third width W3 of the leader film 230 may be identical to the fourth width W4 of the
  • a center of the self-adhesive film 210, a center of the glass ribbon 220, a center of the leader film 230 and/or a center of the trailer film 240 may be aligned in the second horizontal direction (Y direction).
  • the leader film 230 and/or the trailer film 240 may protrude more than the glass ribbon 220 in the first Attorney Docket No.
  • the first side wall 220S1 of the glass ribbon 220 and the second side wall 220S2 of the glass ribbon 220 may not overlap with the first side wall 230S1 of the leader film 230, the second side wall 230S2 of the leader film 230, the first side wall 240S1 of the trailer film 240 and/or the second side wall 240S2 of the trailer film 240 in the second horizontal direction (Y direction).
  • the first side wall 220S1 of the glass ribbon 220 and the second side wall 220S2 of the glass ribbon 220 may be arranged on an inner side from each of the first side wall 230S1 of the leader film 230, the second side wall 230S2 of the leader film 230, the first side wall 240S1 of the trailer film 240, and the second side wall 240S2 of the trailer film 240 in the second horizontal direction (Y direction).
  • the first side wall 230S1 of the leader film 230 may be aligned with the first side wall 240S1 of the trailer film 240 in the second horizontal direction (Y direction), and the second side wall 230S2 of the leader film 230 may be aligned with the second side wall 240S2 of the trailer film 240 in the second horizontal direction (Y direction).
  • the first side wall 230S1 of the leader film 230 may not be aligned with the first side wall 240S1 of the trailer film 240 in the second horizontal direction (Y direction), and the second side wall 230S2 of the leader film 230 may not be aligned with the second side wall 240S2 of the trailer film 240 in the second horizontal direction (Y direction).
  • the second width W2 which is a width of the glass ribbon 220
  • the second width W2 may be for example, about 50 mm to about 1300 mm.
  • the third width W3 of the leader film 230 and/or the fourth width W4 of the trailer film 240 may be about 52 mm to about 1400 mm.
  • a difference between the second width W2 of the glass ribbon 220 and the third width W3 of the leader film 230 and/or the fourth width W4 of the trailer film 240 may vary according to the second width W2 of the glass ribbon 220 and/or a second length L2 of the glass ribbon 220.
  • the first width W1 which is a width of the self-adhesive film 210 may be about 75 % to about 100 % of the second width W2 of the glass ribbon 220.
  • the first width W1 which is a width of the self-adhesive film 210 may be less than the second width W2 of the glass ribbon 220 by about 30 mm or less.
  • an adhesion area between the self-adhesive film 210 and the glass ribbon 220 may be relatively small, and accordingly, the adhesive power between the self-adhesive film 210 and the glass ribbon 220 may not Attorney Docket No.
  • the glass ribbon 220 may not be directly handled in, for example, a coating process, a laminating process, a cleaning process, or a printing process, which requires handling of the glass ribbon 220, and may be indirectly handled through the self-adhesive film 210, causing inconvenience in handling the glass ribbon 220.
  • the self-adhesive film 210 may have a first length L1
  • the glass ribbon 220 may have a second length L2
  • the leader film 230 may have a third length L3
  • the trailer film 240 may have a fourth length L4.
  • the first length L1 of the self-adhesive film 210 may be identical to the second length L2 of the glass ribbon 220.
  • the first length L1 of the self-adhesive film 210 and/or the second length L2 of the glass ribbon 220 may be about 3 m to about 300 m.
  • the self-adhesive film 210 may overlap with a part of the leader film 230 and a part of the trailer film 240.
  • the self-adhesive film 210 when the glass package 200 is unpacked on the X-Y plane, the self-adhesive film 210 may not overlap with a remaining part of the leader film 230 and a remaining part of the trailer film 240.
  • a tape (not shown) connecting the leader film 230 with the glass ribbon 220 may be arranged on the upper surface 230b of the leader film 230 and the upper surface 220b of the glass ribbon 220.
  • the tape may be arranged on the lower surface 230a of the leader film 230 and the lower surface 210a of the self-adhesive film 210.
  • the tape may connect the trailer film 240 to the glass ribbon 220, and may be arranged on the upper surface 240b of the trailer film 240 and the upper surface 220b of the glass ribbon 220.
  • the tape may be arranged on the lower surface 240a of the trailer film 240 and the lower surface 220a of the glass ribbon 220.
  • the first length L1 of the self-adhesive film 210 may be greater than the second length L2 of the glass ribbon 220.
  • the self-adhesive film 210 may overlap with a part of the leader film 230 and a part of the trailer film 240.
  • the tape may be omitted.
  • a width of a glass ribbon in the first horizontal direction may be greater than or equal to a width of a leader film in the first horizontal direction or a width of a trailer film in the first horizontal direction.
  • a side wall of the glass ribbon may be in danger of being damaged during the processing and/or transportation of the glass package.
  • the first side wall 220S1 and the second side wall 220S2 of the glass ribbon 220 may not protrude from the first side wall 230S1 and the second side wall 230S2 of the leader film 230 and/or the first side wall 240S1 and the second side wall 240S2 of the trailer film 240.
  • the first and second side walls 220S1 and 220S2 of the glass ribbon 220 may be protected, which leads to a higher reliability of the glass ribbon 220.
  • FIG.3 is a perspective view of the glass roll 1000 according to an embodiment.
  • FIG.4 is a cross-sectional view parallel with a Y-Z plane to illustrate a cross-section of the glass roll 1000 according to an embodiment.
  • the glass roll 1000 may include the winding core 100 and the glass package 200 wound on the winding core 100.
  • the winding core 100 may have the center axis AX.
  • FIG.4 is a cross-sectional view perpendicular to the center axis AX to illustrate a cross-section of the glass roll 1000.
  • the glass package 200 may be wound on the winding core 100 around the center axis AX.
  • the self-adhesive film 210 may be wound on the winding core 100 around the center axis AX
  • the glass ribbon 220 may be wound on the self-adhesive film 210 around the center axis AX.
  • the trailer film 240 may be wound between the
  • the self-adhesive film 210 may function as an interleaf, and may be wound on the winding core 100 along with the glass ribbon 220 to form the glass roll 1000.
  • a vacuum process such as a coating process, it is unnecessary to remove the self- adhesive film 210 prior to the vacuum process.
  • the self-adhesive film Attorney Docket No.
  • FIG.5 is a cross-sectional view parallel with a X-Y plane to illustrate a cross- section of the glass roll 1000 according to an embodiment.
  • FIG.5 is a cross-sectional view parallel with the center axis AX to illustrate a cross-section of the glass roll 1000.
  • cross-sections 210C1, 210C3, 210C5, and 210C7 of a self-adhesive film may alternate with cross-sections 220C1, 220C3, 220C5, and 220C7 of a glass ribbon.
  • cross-sections 210C2, 210C4, 210C6, and 210C8 of the self-adhesive film may alternate with cross-sections 220C2, 220C4, 220C6, and 220C8 of the glass ribbon.
  • a first cross-section 240C1 of a trailer film may be arranged between a first cross-section 100C1 of a winding core and the cross-section 220C1 of the glass ribbon
  • a second cross- section 240C2 of the trailer film may be arranged between a second cross-section 100C2 of the winding core and the cross-section 220C2 of the glass ribbon.
  • An interface i41 between an upper surface of the trailer film (e.g., 240C1) and a lower surface of the self-adhesive film (e.g., 210C1) may be a non-adhesive surface.
  • An interface i12 between an upper surface of the self-adhesive film (e.g., 210C1) and a lower surface of the glass ribbon (e.g., 220C1) may be an adhesive surface.
  • An interface i21 between an upper surface of the glass ribbon (e.g., 220C1) and a lower surface of the self-adhesive film (e.g., 210C3) may be a non-adhesive surface.
  • An interface i23 between an upper surface of the glass ribbon (e.g., 220C7) and a lower surface of the leader film (e.g., 230C1) may be a non-adhesive surface.
  • a width of the glass ribbon in the first horizontal direction is different from a width of the leader film and/or a width of the trailer film in the first horizontal direction, damages to the side wall of the glass ribbon may be prevented.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Packaging Frangible Articles (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

Un rouleau de verre comprend un noyau d'enroulement ayant un axe central parallèle à une première direction, un ruban de verre enroulé sur le noyau d'enroulement autour de l'axe central, un film de guidage enroulé sur le noyau d'enroulement autour de l'axe central et fixé à une extrémité avant du ruban de verre, et un film suiveur enroulé sur le noyau d'enroulement autour de l'axe central et fixé à une extrémité arrière du ruban de verre, dans la première direction, une largeur du film de guidage ou une largeur du film suiveur étant supérieure à une largeur du ruban de verre.
PCT/US2023/037228 2022-11-14 2023-11-14 Rouleau de verre WO2024107414A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220151841A KR20240070246A (ko) 2022-11-14 2022-11-14 유리 롤
KR10-2022-0151841 2022-11-14

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WO2024107414A1 true WO2024107414A1 (fr) 2024-05-23

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017109850A (ja) * 2015-12-17 2017-06-22 日本電気硝子株式会社 ガラスロール及びその製造方法
EP3527521A1 (fr) * 2016-10-17 2019-08-21 Nippon Electric Glass Co., Ltd. Rouleau de verre

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017109850A (ja) * 2015-12-17 2017-06-22 日本電気硝子株式会社 ガラスロール及びその製造方法
EP3527521A1 (fr) * 2016-10-17 2019-08-21 Nippon Electric Glass Co., Ltd. Rouleau de verre

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