WO2014030521A1 - Procédé permettant de couper une feuille composite, procédé permettant de couper une feuille de verre et partie coupée d'une feuille composite - Google Patents

Procédé permettant de couper une feuille composite, procédé permettant de couper une feuille de verre et partie coupée d'une feuille composite Download PDF

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Publication number
WO2014030521A1
WO2014030521A1 PCT/JP2013/070935 JP2013070935W WO2014030521A1 WO 2014030521 A1 WO2014030521 A1 WO 2014030521A1 JP 2013070935 W JP2013070935 W JP 2013070935W WO 2014030521 A1 WO2014030521 A1 WO 2014030521A1
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WO
WIPO (PCT)
Prior art keywords
glass sheet
resin film
cutting
sheet
glass
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PCT/JP2013/070935
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English (en)
Japanese (ja)
Inventor
純一 角田
研一 江畑
井上　淳
真丈 三谷
Original Assignee
旭硝子株式会社
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.)
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Application filed by 旭硝子株式会社 filed Critical 旭硝子株式会社
Priority to JP2014531568A priority Critical patent/JP6090325B2/ja
Priority to CN201380038806.3A priority patent/CN104487391B/zh
Priority to KR20147036655A priority patent/KR20150045957A/ko
Publication of WO2014030521A1 publication Critical patent/WO2014030521A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
    • C03B33/074—Glass products comprising an outer layer or surface coating of non-glass material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/002—Precutting and tensioning or breaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/09—Severing cooled glass by thermal shock
    • C03B33/091—Severing cooled glass by thermal shock using at least one focussed radiation beam, e.g. laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • B23K2103/166—Multilayered materials
    • B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Definitions

  • the present invention relates to a composite sheet cutting method, a glass sheet cutting method, and a composite sheet cut piece.
  • a composite sheet including a glass sheet and a resin film formed on the glass sheet is known.
  • This composite sheet has both the chemical resistance and heat resistance of a glass sheet and the flexibility of a resin film, and is used for the production of, for example, a display, a solar cell and the like by utilizing the characteristics.
  • Patent Document 1 a method using a laser beam has been proposed as a method for cutting a composite sheet.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a method for cutting a composite sheet with high cutting accuracy and a method for cutting a glass sheet with high cutting accuracy.
  • one aspect of the present invention provides: A method of cutting a composite sheet comprising a glass sheet having a thickness of 200 ⁇ m or less and a resin film formed on the glass sheet,
  • the glass sheet of the composite sheet is locally irradiated with laser light, the glass sheet is locally heated at a temperature below the annealing point of the glass, and the irradiation position of the laser light in the glass sheet is moved,
  • a method for cutting a glass sheet having a thickness of 200 ⁇ m or less The glass sheet and a glass sheet of a composite sheet including a resin film formed on the glass sheet are locally irradiated with laser light, and the glass sheet is locally heated at a temperature below the annealing point of the glass, Moving the irradiation position of the laser beam in the glass sheet, and extending a crack penetrating the glass sheet in the thickness direction along the movement locus; In this step, the resin film straddles the crack and connects the glass on both sides sandwiching the crack.
  • a composite sheet cutting method with high cutting accuracy and a glass sheet cutting method with high cutting accuracy are provided.
  • FIG. 1 shows the 1st process of the cutting method of the composite sheet by the 1st Embodiment of this invention. It is a perspective view which shows the 2nd process of the cutting method of the composite sheet by the 1st Embodiment of this invention. It is explanatory drawing of the dimension of the laser beam in the laser irradiation surface of the glass sheet of FIG. It is a perspective view which shows the state of the composite sheet after the laser scanning of FIG. It is a perspective view which shows the state of the resin film of FIG. It is a side view which shows the state of a composite sheet when removing from a support stand after the laser scanning of FIG. It is a perspective view which shows the state of the composite sheet after the process of FIG.
  • the composite sheet 10 of the present invention includes a glass sheet 12 and a resin film 14 formed on the glass sheet 12, as shown in FIG.
  • the composite sheet 10 has both the chemical resistance and heat resistance of the glass sheet 12 and the flexibility of the resin film 14, and is used for manufacturing, for example, a display and a solar cell by utilizing the characteristics.
  • the glass type of the glass sheet 12 may be various, for example, soda lime glass, non-alkali glass or the like.
  • molding method of the glass sheet 12 may be a general thing, for example, the float method, the fusion method, the redraw method, etc. may be sufficient.
  • the average linear expansion coefficient (hereinafter simply referred to as “average linear expansion coefficient”) of the glass sheet 12 at 0 ° C. to 300 ° C. is, for example, 10 ⁇ 10 ⁇ 7 / ° C. to 100 ⁇ 10 ⁇ 7 / ° C., preferably 10 ⁇ 10 -7 / ° C to 50 ⁇ 10 -7 / ° C.
  • the thickness of the glass sheet 12 is 200 ⁇ m or less. When the thickness of the glass sheet 12 is 200 ⁇ m or less, it is possible to produce a glass roll by winding the glass sheet 12 in a spiral shape. Further, when the thickness of the glass sheet 12 is 200 ⁇ m or less, the crack 31 formed in the glass sheet 12 by the irradiation of the laser light 20 shown in FIG. 2 penetrates the glass sheet 12 in the thickness direction.
  • the thickness of the glass sheet 12 becomes like this. Preferably it is 150 micrometers or less, More preferably, it is 100 micrometers or less, More preferably, it is 50 micrometers or less. Further, the thickness of the glass sheet 12 is preferably 10 ⁇ m or more.
  • the glass sheet 12 may be subjected to a surface treatment in advance in order to improve the adhesion between the glass and the resin.
  • a surface treatment include primer treatment, ozone treatment, plasma etching treatment, and the like.
  • An example of the primer is a silane coupling agent.
  • silane coupling agents include aminosilanes, epoxy silanes, alkoxysilanes, silazanes and the like.
  • the method for forming the resin film 14 on the glass sheet 12 is not particularly limited.
  • a liquid resin composition is applied to the glass sheet 12 and the resin composition is solidified, and the resin film is attached to the glass sheet 12. Any of the methods may be used.
  • the resin film may be subjected to a surface treatment in advance in order to enhance the adhesion between the glass and the resin, and for example, may be one in which a pressure-sensitive adhesive is applied to the surface in contact with the glass.
  • the resin film 14 includes a resin film as a base material and an adhesive.
  • Examples of the pressure-sensitive adhesive include isocyanate-based, polyurethane-based, polyester-based, acrylic-based, polyethyleneimine-based, rubber-based, silane coupling agent, titanium coupling agent, silicone-based, polyimide-silicone-based, and the like.
  • the resin film 14 is formed on at least a part of the cutting position of the glass sheet 12 (that is, the movement locus of the irradiation position of the laser beam 20 (see FIG. 2) in the glass sheet 12), and at least at the cutting end position of the glass sheet 12. It is preferably formed, and more preferably formed over the entire cutting position of the glass sheet 12.
  • the resin film 14 serves to connect the glasses 121 and 122 on both sides of the crack 31 across the crack 31 formed in the glass sheet 12 by irradiation with the laser beam 20. Therefore, at least a region within 2.5 mm is covered with the resin film 14 in both directions orthogonal to the crack 31 from the crack 31 (that is, the center line of the movement locus of the laser beam irradiation position in the glass sheet 12). Is preferred. Further, it is more preferable that at least a region within 5 mm is covered with the resin film 14 in both directions orthogonal to the crack 31 from the crack 31.
  • the resin film 14 may be larger or smaller than the glass sheet 12. It is particularly preferable that the resin film 14 has the same size as the glass sheet 12.
  • the resin film 14 may be formed of either a thermoplastic resin or a thermosetting resin, but when the glass sheet 12 is locally heated with the laser beam 20 shown in FIG. 2, the resin film 14 is not torn and cut. Thus, what is formed with a thermosetting resin is preferable.
  • a thermosetting resin for example, polyimide (PI), epoxy (EP), or the like is used.
  • the thermoplastic resin include polyamide (PA), polyamideimide (PAI), polyetheretherketone (PEEK), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), and cyclic polyolefin.
  • the resin film 14 may be formed of a photocurable resin.
  • the resin film 14 may contain an inorganic filler in order to improve heat resistance, strength, moldability, and the like.
  • the resin film 14 is preferably formed on one surface of the glass sheet 12, and is formed on the surface opposite to the surface 12a on which the laser light 20 of the glass sheet 12 is incident (hereinafter referred to as the laser irradiation surface 12a of the glass sheet 12). It is preferred that
  • the thickness of the resin film 14 depends on the type of the resin film 14, but is, for example, 1 ⁇ m to 200 ⁇ m, more preferably 1 ⁇ m to 100 ⁇ m, and still more preferably 1 ⁇ m to 50 ⁇ m. If the thickness of the resin film 14 becomes too thick, the resin film 14 cannot be cleaved by bending the resin film 14. If the thickness of the resin film 14 becomes too thin, the resin film 14 is torn and cut when the glass sheet 12 is locally heated with the laser beam 20. In addition, when the resin film 14 consists of a base material and an adhesive, the thickness of the resin film 14 is the total thickness of a base material and an adhesive.
  • the peel strength of the resin film 14 is measured by a 180 ° peel test (JIS K6854-2) that peels the resin film 14 from the glass sheet 12 while holding the glass sheet 12 flat.
  • the peel strength of the resin film 14 is, for example, larger than 0 N / 25 mm, preferably 0.01 N / 25 mm or more, more preferably 0 so that the resin film 14 can suppress the deformation of the glass sheet 12 when irradiated with the laser beam 20. .1 N / 25 mm or more.
  • the composite sheet cutting method includes, for example, a first step of forming an initial crack 30 in the glass sheet 12 (see FIG. 1) and a second step of forming a crack 31 penetrating the glass sheet 12 in the thickness direction ( 2) and a third step of cutting the resin film 14 (see FIG. 8).
  • an initial crack 30 is formed in the glass sheet 12 as shown in FIG.
  • the initial crack 30 may be formed at the cutting start position of the glass sheet 12 and may be formed at the end of the glass sheet 12.
  • the initial crack 30 is formed by a wheel cutter, a point cutter, a file, a laser, or the like.
  • the first step may be performed before the resin film 14 is formed on the glass sheet 12, or may be performed after the resin film 14 is formed on the glass sheet 12. In the latter case, since the glass sheet 12 is reinforced with the resin film 14 when the initial crack 30 is formed, damage to the glass sheet 12 can be suppressed.
  • the first step is an optional step and may be omitted.
  • microcracks formed by grinding can be used as initial cracks.
  • the glass sheet 12 of the composite sheet 10 is locally irradiated with the laser light 20, and the glass sheet 12 is locally heated at a temperature below the annealing point of the glass, The irradiation position of the laser beam 20 on the glass sheet 12 is moved.
  • the glass sheet 12 may be moved, the light source of the laser light 20 may be moved, or both may be moved.
  • the movement of the glass sheet 12 is performed by, for example, movement of a stage that supports the glass sheet 12 or rotation of a conveyance roll that conveys the glass sheet 12.
  • the transport roll is rotated around its center line.
  • the glass sheet 12 may be rotated.
  • the rotation of the glass sheet 12 is performed by rotation of a stage that supports the glass sheet 12.
  • the stage is rotated about a rotating shaft that projects from the stage.
  • the rotation of the glass sheet 12 is particularly effective when the movement locus of the irradiation position of the laser beam 20 on the glass sheet 12 is curved.
  • a galvanometer mirror that reflects the laser light from the light source toward the glass sheet 12 may be rotated.
  • the heating temperature is preferably as high as possible below the annealing point. That is, the heating temperature range is preferably (glass annealing point ⁇ 200 ° C.) or more and not more than glass annealing point, more preferably (glass annealing point ⁇ 100 ° C.) or more and glass annealing point or less. .
  • the glass sheet 12 is locally heated at a temperature below the annealing point of the glass, thermal stress is generated.
  • a compressive stress is generated at the irradiation position of the laser beam 20, and a tensile stress is generated near the rear of the irradiation position of the laser beam 20 due to the reaction.
  • the glass sheet 12 is cut open by the generated tensile stress, and a crack 31 is formed.
  • the crack 31 penetrates the glass sheet 12 in the thickness direction.
  • the crack 31 follows the irradiation position of the laser beam 20 and extends along the movement locus of the irradiation position of the laser beam 20.
  • the movement trajectory may be linear or curved, and may have both a linear portion and a curved portion.
  • the crack 31 may be formed starting from the initial crack 30.
  • “backward” means a direction opposite to the extending direction of the crack 31, and means a direction opposite to the moving direction of the irradiation position of the laser beam 20 on the glass sheet 12.
  • the glass sheet 12 is locally heated at a temperature below the annealing point of the glass, the glass does not melt. Therefore, a smooth glass cut surface is obtained, and a high-strength glass cut surface is obtained.
  • the laser light 20 is emitted from the light source, then condensed by a condenser lens or the like, and enters the laser irradiation surface 12 a of the glass sheet 12.
  • the laser beam 20 may enter the laser irradiation surface 12a of the glass sheet 12 perpendicularly or may be incident obliquely.
  • Examples of the light source of the laser beam 20 include a CO 2 laser (wavelength 10600 nm), a mid-infrared light parametric oscillator (wavelength 2600 nm to 3450 nm), an Er: YAG laser (wavelength 2940 nm), a Ho: YAG laser (wavelength 2080 nm), and a Yb fiber.
  • Laser wavelength 1000 nm to 1100 nm
  • Yb disk laser wavelength 1000 nm to 1100 nm
  • Nd: YAG laser (wavelength 1064 nm), high power semiconductor laser (wavelength 808 nm to 980 nm) green laser (wavelength 532 nm), UV laser (wavelength 355 nm) Etc. are used.
  • the light source of the laser beam 20 may be either a CW laser that continuously oscillates the laser beam or a pulse laser that intermittently oscillates the laser beam.
  • the shape (spot shape) of the laser light 20 on the laser irradiation surface 12 a of the glass sheet 12 is appropriately set according to the type of the light source of the laser light 20 and the like. This is because the light absorption rate of the glass sheet 12 varies depending on the wavelength of the laser light 20. For example, when the light source is a CO 2 laser, the wavelength of the laser light 20 is long, and most of the laser light 20 is absorbed as heat near the laser irradiation surface 12 a of the glass sheet 12. Therefore, when the light source is a CO 2 laser, the shape of the laser beam 20 on the laser irradiation surface 12a of the glass sheet 12 may be elongated in the moving direction of the irradiation position of the laser beam 20.
  • the cutting position of the glass sheet 12 can be heated for a long time, and a time for transferring heat from the laser irradiation surface 12a of the glass sheet 12 to the inside can be secured.
  • a time for transferring heat from the laser irradiation surface 12a of the glass sheet 12 to the inside can be secured.
  • the shape of the laser light 20 on the laser irradiation surface 12a of the glass sheet 12 is, for example, circular Or a rectangle.
  • the width of the curved portion of the movement locus is constant, and the crack 31 is difficult to be removed from the movement locus.
  • the laser light 20 may be rotated around the optical axis while moving the irradiation position of the laser light 20.
  • the light source of the laser beam 20 may be rotated around the optical axis.
  • the moving direction length L (see FIG. 3) of the laser beam 20 on the laser irradiation surface 12a of the glass sheet 12 is not particularly limited, but is, for example, 0.1 mm to 60 mm, preferably 1 mm to 30 mm.
  • the length W (see FIG. 3) of the laser beam 20 on the laser irradiation surface 12a of the glass sheet 12 is not particularly limited, but is, for example, 0.01 mm to 10 mm, preferably 0.1 mm to 5 mm.
  • the glass sheet 12 is locally cooled with the refrigerant 40, and the supply position of the refrigerant 40 in the glass sheet 12 is interlocked with the irradiation position of the laser beam 20 in the glass sheet 12. You can move it.
  • the supply position of the coolant 40 may be near the rear of the irradiation position of the laser beam 20. An abrupt temperature gradient occurs behind the irradiation position of the laser beam 20, and the distance between the irradiation position of the laser beam 20 and the tip position of the crack 31 is shortened.
  • the refrigerant 40 may be either a gas (for example, compressed air at room temperature) or a liquid (for example, water at room temperature), or may include both.
  • the nozzle 50 is formed in a cylindrical shape as shown in FIG. 2, for example, and discharges the refrigerant 40 toward the glass sheet 12.
  • the glass sheet 12 For moving the supply position of the refrigerant 40 in the glass sheet 12, the glass sheet 12 may move, the nozzle 50 may move, or both may move.
  • the resin film 14 when the crack 31 is formed in the glass sheet 12, the resin film 14 is not cut. Therefore, the resin film 14 straddles the crack 31 and connects the glasses 121 and 122 on both sides sandwiching the crack 31. Since the glasses 121 and 122 on both sides sandwiching the crack 31 are connected by the resin film 14, the deformation of the glass is suppressed when the crack 31 is formed, and the position of the crack 31 is difficult to be removed from the desired position. Therefore, the cutting accuracy of the glass sheet 12 is improved. This effect is remarkable when the resin film 14 is formed over the entire cutting position of the glass sheet 12 (that is, the movement locus of the irradiation position of the laser beam 20 on the glass sheet 12).
  • the laser light 20 may be irradiated to the glass sheet 12 from the side opposite to the resin film 14 side. While passing through the glass sheet 12, the laser light 20 is attenuated according to the light absorption rate of the glass sheet 12, and then enters the resin film 14. Therefore, the intensity of the laser beam 20 incident on the resin film 14 is low, and the resin film 14 is difficult to soften and melt. When a part of the resin film 14 is melted, the melted part may be torn by surface tension.
  • thermo degradation refers to the occurrence of carbonization, foaming, or the like due to heat
  • tensile strength of the resin film 14 after laser irradiation is 0.01 based on the tensile strength (MPa) of the resin film 14 before laser irradiation.
  • MPa tensile strength
  • the tensile strength of the resin film 14 after laser irradiation is preferably decreased by 0.1% or more, more preferably 1% or more, based on the tensile strength of the resin film 14 before laser irradiation.
  • the heat deterioration part 143 is formed in the surface 14a (refer FIG. 5) which contacts the glass sheet 12 in the resin film 14.
  • FIG. 5 the thermally deteriorated portion 143 may or may not penetrate the resin film 14 in the thickness direction. Note that a groove line (scribe line) following the crack 31 of the glass sheet 12 may be formed in the thermally deteriorated portion 143.
  • the tensile stress includes (i) tensile stress due to reaction of compressive stress by laser light irradiation, (ii) tensile stress due to thermal expansion of resin due to heating of laser light, and preferably (iii) tensile stress due to supply of refrigerant. Is considered to be caused by the interaction. Moreover, it is considered that the cutting accuracy is increased by this interaction.
  • the crack 31 extends and the glass sheet 12 is divided by a slight external force. Therefore, when the composite sheet 10 is removed from the support after the laser beam 20 is irradiated, if the composite sheet 10 is slightly bent, the end portion of the glass sheet 12 is cut by the stress.
  • the resin film 14 is bent around the linear heat-degraded portion 143 as shown in FIG. 6, and the end of the glass sheet 12 is matched with the deformation of the resin film 14.
  • the part bends. Since the linear thermal degradation part 143 is formed along the movement locus of the irradiation position of the laser beam 20, the end of the glass sheet 12 is bent around the movement locus. Therefore, the edge part of the glass sheet 12 is cut
  • the thermally deteriorated portion 143 is formed from the end (laser irradiation start point) to the end (laser irradiation end point) of the resin film 14.
  • the resin film 14 is easily bent around the thermally deteriorated portion 143.
  • the step of cutting the end portion of the glass sheet 12 that is the terminal portion of the movement locus of the irradiation position of the laser beam 20 is performed when the composite sheet 10 is removed from the support after the irradiation of the laser beam 20. Although it is performed, it may be performed after removing the composite sheet 10 from the support base.
  • the resin film 14 is cut as shown in FIG. 8 to obtain a plurality of resin films 141 and 142.
  • a plurality of cut pieces 111 and 112 are obtained.
  • One cut piece 111 includes a glass sheet 121 and a resin film 141 bonded to the glass sheet 121.
  • the other cut piece 112 includes a glass sheet 122 and a resin film 142 bonded to the glass sheet 122.
  • a linear heat-degraded portion 143 is formed on the resin film 14 along the movement locus of the irradiation position of the laser beam 20 on the glass sheet 12. Therefore, as shown in FIG. 8, the resin film 14 can be cut (cleaved) along the thermally deteriorated portion 143 by bending the resin film 14 around the linear thermally deteriorated portion 143.
  • the resin film 14 is bent around the linear heat-degraded portion 143, it is preferable to bend the resin film 14 so that the glass cut surfaces do not rub.
  • the linear thermal degradation part 143 is formed along the movement locus of the irradiation position of the laser beam 20. Therefore, as shown in FIG. 9, the cut surface of the glass sheet 121 obtained by cutting is flush with the cut surface of the resin film 141 obtained by cutting. Similarly, the cut surface of the glass sheet 122 obtained by cutting and the cut surface of the resin film 142 obtained by cutting are flush with each other. Compared to the case where the cut surface of the resin film is recessed from the cut surface of the glass sheet, the glass sheets 121 and 122 are less likely to be damaged, and the cut pieces 111 and 112 can be easily stored.
  • the resin film 14 is cut by bending the resin film 14, but the cutting method of the resin film 14 is not particularly limited.
  • a method of cutting a resin film in which the cut surface of the resin film is flush with the cut surface of the glass sheet a method of tearing the resin film along a linear heat-degraded part, along a linear heat-degraded part with a cutter
  • a method of cutting the resin film can also be used.
  • the cut surface of the resin film is somewhat recessed from the cut surface of the glass sheet, a method of locally vaporizing the resin film with a laser can also be used as a method of cutting the resin film 14.
  • the present embodiment relates to a method for cutting the glass sheet 12.
  • the cutting method of the glass sheet 12 may have the steps of FIGS. 1 to 7 as in the cutting method of the composite sheet 10, but these steps are the same steps, and thus the description thereof is omitted.
  • FIG. 10 is an explanatory diagram of a method for cutting a glass sheet according to the second embodiment of the present invention, and is a diagram illustrating a process performed subsequent to the process of FIG.
  • the cutting method of the glass sheet 12 has the process of peeling the glass sheet 12 and the resin film 14 as shown in FIG.
  • the peel strength of the resin film 14 is, for example, 3 N / 25 mm or less, preferably 1 N / 25 mm or less so that the glass sheet 12 is not damaged during peeling.
  • the peeling method of the glass sheet 12 and the resin film 14 is not particularly limited. For example, a step of inserting a thin blade at the interface between the glass sheet 12 and the resin film 14 to produce a peeling starting point, and holding the glass sheet 12 flat.
  • the resin film 14 may be sequentially bent and deformed from the peeling start point. By holding the glass sheet 12 flat at the time of peeling, the breakage of the glass sheet 12 can be reduced.
  • the resin film 14 is preferably not cut.
  • the plurality of glasses 121 and 122 and the resin film 14 can be peeled in one operation.
  • process of peeling the glass sheet 12 and the resin film 14 may be performed after the resin film 14 is cut, and may be performed, for example, following the process of FIG.
  • the glass sheet cutting method may further include a step of forming a resin film 14 on the glass sheet 12.
  • a 150 mm square glass sheet (thickness: 100 ⁇ m, average linear expansion coefficient: 38 ⁇ 10 ⁇ 7 / ° C., non-alkali glass manufactured by Asahi Glass Co., Ltd., trade name: AN100 ) was used.
  • Example 1 In Example 1, after the surface of the glass sheet on which the resin film was formed was surface-treated, a polyimide film (150 mm square, thickness 5 ⁇ m) was formed as the resin film. The surface treatment of the glass sheet was performed by applying aminopropyltrimethoxysilane with a spin coater. The polyimide film was formed by applying polyimide varnish (H851D, manufactured by Arakawa Chemical Co., Ltd.) to the surface-treated surface of the glass sheet with a spin coater and heat-treating at 250 ° C. for 30 minutes.
  • polyimide varnish H851D, manufactured by Arakawa Chemical Co., Ltd.
  • Example 1 the composite sheet made of the produced glass sheet and polyimide film was cut by the method shown in FIGS.
  • the glass sheet was cut. Eight initial cracks were formed at 20 mm pitch on one of the four sides of the rectangular glass sheet.
  • the composite sheet was placed on the support with the polyimide film facing downward.
  • the laser beam was locally irradiated on the glass sheet from a CO 2 laser (wavelength 10600 nm, output 39 W).
  • the laser scanning speed was 130 mm / sec.
  • the irradiation position of the laser beam on the glass sheet was moved from the formation position of each initial crack to another side parallel to the one side perpendicular to the one side forming the initial crack.
  • the movement trajectory was linear.
  • coolant was supplied locally to the glass sheet from the nozzle.
  • the supply position of the coolant was positioned in the vicinity of the rear of the laser light irradiation position and moved in conjunction with the laser light irradiation position.
  • the polyimide film was slightly bent and deformed around the linear heat-degraded part.
  • the edge part of the glass sheet was bent according to the deformation, and the edge part of the glass sheet was cut. In this way, the glass sheet was cut.
  • the polyimide film was bent around the linearly deteriorated part, and the polyimide film was cleaved along the thermally deteriorated part. Since the linear thermally deteriorated portion is formed along the entire movement locus of the irradiation position of the laser beam on the glass sheet, the cut surface of the resin film and the cut surface of the glass sheet are substantially flush with each other.
  • the cutting accuracy of the composite sheet was evaluated by a deviation width between the actual cutting position in the glass sheet and the linear target cutting position (hereinafter referred to as “cutting deviation width in the glass sheet”). The evaluation was performed separately for the terminal portion and the other portion of the movement locus of the irradiation position of the laser beam.
  • Example 1 the maximum deviation width of the cut in the glass sheet was 0 mm in both the terminal portion and the other portion of the movement locus of the irradiation position of the laser beam.
  • Example 2 In Example 2, a polyimide resin (150 mm square, thickness 38 ⁇ m, manufactured by Arakawa Chemical Co., Ltd., trade name Pomilan) was coated with a polyimide silicone adhesive (thickness 10 ⁇ m, manufactured by Arakawa Chemical Co., Ltd., trade name H802) and laminated resin film. was made. The pressure-sensitive adhesive side of the produced laminated resin film was stuck on a glass sheet to produce a composite sheet.
  • Example 1 the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the laminated resin film was slightly bent and deformed around the linear heat-degraded part.
  • the edge part of the glass sheet bent slightly according to the deformation
  • the laminated resin film was bent around the linear heat-degraded portion, and the laminated resin film was cleaved along the heat-degraded portion. Since the linear heat-degraded part is formed along the entire movement locus of the laser beam irradiation position on the glass sheet, the cut surface of the laminated resin film and the cut surface of the glass sheet are substantially flush with each other. .
  • the composite sheet was cut.
  • the maximum deviation width of the cut in the glass sheet was 0 mm in both the terminal portion and the other portion.
  • Example 3 a laminated resin film (trade name: 635F, manufactured by Teraoka Seisakusho Co., Ltd.) comprising a polyethylene naphthalate (PEN) film (150 mm square, thickness 50 ⁇ m) as a base material and an acrylic adhesive (thickness 30 ⁇ m).
  • PEN polyethylene naphthalate
  • a composite sheet was prepared by attaching the pressure-sensitive adhesive side of the prepared laminated resin film to a glass sheet.
  • Example 1 the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the laminated resin film was slightly bent and deformed around the linear heat-degraded part.
  • the edge part of the glass sheet was bent according to the deformation, and the edge part of the glass sheet was cut. In this way, the glass sheet was cut.
  • the laminated resin film was bent around the linear heat-degraded portion, and the laminated resin film was cut (cleaved) along the heat-degraded portion. Since the linear heat-degraded part is formed along the entire movement locus of the laser beam irradiation position on the glass sheet, the cut surface of the laminated resin film and the cut surface of the glass sheet are substantially flush with each other. .
  • the composite sheet was cut.
  • the maximum deviation width of the cut in the glass sheet was 0 mm in both the terminal portion and the other portion.
  • Example 4 a cyclic polyolefin (COP) film (150 mm square, thickness 50 ⁇ m, manufactured by Zeon Corporation, trade name ZF14) was prepared. The prepared COP film was activated by corona discharge, and heated and bonded onto a glass sheet to produce a composite sheet.
  • COP cyclic polyolefin
  • Example 1 the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the COP film was slightly bent and deformed around the linear heat-degraded part.
  • the edge part of the glass sheet was bent according to the deformation, and the edge part of the glass sheet was cut. In this way, the glass sheet was cut.
  • the COP film was bent around the linearly heat-degraded part, and the COP film was cut (cleaved) along the heat-degraded part. Since the linear thermally deteriorated portion is formed along the entire movement locus of the irradiation position of the laser beam on the glass sheet, the cut surface of the COP film and the cut surface of the glass sheet are substantially flush with each other.
  • the composite sheet was cut.
  • the maximum deviation width of the cut in the glass sheet was 0 mm in both the terminal portion and the other portion.
  • Example 5 a laminated resin film (150 mm square, made by Somar, trade name Somatac PS-250WA) composed of a polyethylene terephthalate (PET) film (thickness 125 ⁇ m) as a substrate and an acrylic adhesive (thickness 16 ⁇ m). ) was prepared. A composite sheet was prepared by attaching the pressure-sensitive adhesive side of the prepared laminated resin film to a glass sheet.
  • P PET polyethylene terephthalate
  • acrylic adhesive thickness 16 ⁇ m
  • Example 1 the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the laminated resin film was slightly bent and deformed around the linear heat-degraded part.
  • the edge part of the glass sheet was bent according to the deformation, and the edge part of the glass sheet was cut. In this way, the glass sheet was cut.
  • a thin blade is inserted into the interface between the glass sheet and the laminated resin film to produce a peeling start point, and while holding the glass sheet 12 flat, the laminated resin film is sequentially bent and deformed from the peeling start point, and a plurality of glasses are formed at a time.
  • Single plate strip was peeled off.
  • the peel strength was 0.11 N / 25 mm.
  • the glass sheet was cut.
  • the maximum deviation width of the cut in the glass sheet was 0 mm in both the terminal portion and the other portion.
  • Example 6 a laminated resin film (150 mm square, manufactured by 3M, product number 7414) composed of a polyimide film (thickness 25 ⁇ m) as a base material and an acrylic pressure-sensitive adhesive (thickness 22 ⁇ m) was prepared. A composite sheet was prepared by pasting the pressure-sensitive adhesive side of the prepared laminated resin film on a glass sheet.
  • Example 1 the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the laminated resin film was slightly bent and deformed around the linear heat-degraded part.
  • the edge part of the glass sheet was bent according to the deformation, and the edge part of the glass sheet was cut. In this way, the glass sheet was cut.
  • a thin blade is inserted into the interface between the glass sheet and the laminated resin film to produce a peeling start point, and while the glass sheet is held flat, the laminated resin film is sequentially bent and deformed from the peeling start point, and a plurality of glass units are The strip was peeled off.
  • the peel strength was 0.69 N / 25 mm.
  • the glass sheet was cut.
  • the maximum deviation width of the cut in the glass sheet was 0 mm in both the terminal portion and the other portion.
  • Comparative Example 1 In Comparative Example 1, a 150 mm square glass sheet without a resin film was cut. Specifically, as in Example 1, the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the maximum deviation width of the cutting was 1 mm to 3 mm in the terminal portion of the movement locus of the laser beam irradiation position on the glass sheet. Further, in the movement locus of the irradiation position of the laser beam on the glass sheet, the maximum deviation width of the cutting was about 1 mm in a portion other than the terminal portion.
  • Comparative Example 2 In Comparative Example 2, a composite sheet was produced in the same manner as in Example 1 except that the film thickness of the polyimide film was 0.5 ⁇ m.
  • Example 1 the glass sheet was locally irradiated with laser light, and the irradiation position was moved. Moreover, like Example 1, the refrigerant
  • the maximum deviation width of the cut was 1 mm to 3 mm at the end portion. Further, in the movement locus of the irradiation position of the laser beam on the glass sheet, the maximum deviation width of the cutting was about 1 mm in a portion other than the terminal portion.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Thermal Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Laser Beam Processing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un procédé permettant de couper une feuille composite comprenant une feuille de verre d'une épaisseur de 200 µm ou moins et un film en résine formé sur la feuille de verre, ledit procédé comportant les étapes qui consistent à appliquer localement une lumière laser à la feuille de verre de la feuille composite, à chauffer localement la feuille de verre à une température inférieure ou égale à la température de recuit du verre, à changer la position d'application de la lumière laser sur la feuille de verre, et à prolonger une fissure pénétrant dans la feuille de verre dans le sens de l'épaisseur selon une trajectoire de déplacement. Dans cette étape, le film de résine couvre la fissure et raccorde les verres des deux côtés entre lesquels est interposée la fissure, après quoi le film en résine est coupé.
PCT/JP2013/070935 2012-08-21 2013-08-01 Procédé permettant de couper une feuille composite, procédé permettant de couper une feuille de verre et partie coupée d'une feuille composite WO2014030521A1 (fr)

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JP2014531568A JP6090325B2 (ja) 2012-08-21 2013-08-01 複合シートの切断方法、ガラスシートの切断方法、複合シートの切断片
CN201380038806.3A CN104487391B (zh) 2012-08-21 2013-08-01 复合片的切断方法、玻璃片的切断方法
KR20147036655A KR20150045957A (ko) 2012-08-21 2013-08-01 복합 시트의 절단 방법, 유리 시트의 절단 방법, 복합 시트의 절단편

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WO2015132008A1 (fr) * 2014-03-04 2015-09-11 Saint-Gobain Glass France Procédé de découpe d'une couche de verre ultramince stratifiée
JP2015214468A (ja) * 2014-05-13 2015-12-03 旭硝子株式会社 複合体の製造方法および積層体の製造方法
JP2016166120A (ja) * 2015-03-06 2016-09-15 三星ダイヤモンド工業株式会社 積層基板の加工方法及びレーザ光による積層基板の加工装置
CN106029591A (zh) * 2014-05-23 2016-10-12 日本电气硝子株式会社 面板的制造方法
CN106458688A (zh) * 2014-03-31 2017-02-22 康宁股份有限公司 形成层压玻璃结构的机械加工方法
TWI663051B (zh) * 2014-05-14 2019-06-21 日商Ａｇｃ股份有限公司 複合體、積層體及電子裝置、與其等之製造方法
US10759690B2 (en) 2015-08-10 2020-09-01 Saint-Gobain Glass France Method for cutting a thin glass layer
WO2022102470A1 (fr) * 2020-11-13 2022-05-19 日東電工株式会社 Structure multicouche et son procédé de production

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JP6888808B2 (ja) * 2017-03-30 2021-06-16 三星ダイヤモンド工業株式会社 樹脂層付き脆性材料基板の分断方法並びに分断装置
KR102388103B1 (ko) * 2017-10-27 2022-04-20 삼성디스플레이 주식회사 윈도우 패널 재생설비 및 윈도우 패널 재생방법
TW201946882A (zh) 2018-05-07 2019-12-16 美商康寧公司 透明氧化物玻璃的雷射誘導分離
WO2020039970A1 (fr) * 2018-08-20 2020-02-27 日本ゼオン株式会社 Procédé de fabrication de film en feuilles, film en feuilles et film pour film en feuilles
JP2020066539A (ja) * 2018-10-22 2020-04-30 坂東機工株式会社 ガラス板の折割機械
CN111922527B (zh) * 2020-07-28 2022-09-13 福耀集团（上海）汽车玻璃有限公司 一种夹层玻璃的打孔方法、切割工具及夹层玻璃
CN113800759A (zh) * 2021-10-11 2021-12-17 江苏微纳激光应用技术研究院有限公司 一种提高强化玻璃切割质量的切割方法及切割系统

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JP2015071515A (ja) * 2013-10-04 2015-04-16 日本電気硝子株式会社 ガラスフィルムの割断方法及びフィルム状ガラスの製造方法
WO2015132008A1 (fr) * 2014-03-04 2015-09-11 Saint-Gobain Glass France Procédé de découpe d'une couche de verre ultramince stratifiée
EA032743B1 (ru) * 2014-03-04 2019-07-31 Сэн-Гобэн Гласс Франс Способ резки ламинированного сверхтонкого стеклянного слоя
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US20170066679A1 (en) * 2014-03-04 2017-03-09 Saint-Gobain Glass France Method for cutting a laminated ultra-thin glass layer
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JP2015214468A (ja) * 2014-05-13 2015-12-03 旭硝子株式会社 複合体の製造方法および積層体の製造方法
TWI663051B (zh) * 2014-05-14 2019-06-21 日商Ａｇｃ股份有限公司 複合體、積層體及電子裝置、與其等之製造方法
CN106029591A (zh) * 2014-05-23 2016-10-12 日本电气硝子株式会社 面板的制造方法
CN106029591B (zh) * 2014-05-23 2019-08-23 日本电气硝子株式会社 面板的制造方法
JP2016166120A (ja) * 2015-03-06 2016-09-15 三星ダイヤモンド工業株式会社 積層基板の加工方法及びレーザ光による積層基板の加工装置
US10759690B2 (en) 2015-08-10 2020-09-01 Saint-Gobain Glass France Method for cutting a thin glass layer
WO2022102470A1 (fr) * 2020-11-13 2022-05-19 日東電工株式会社 Structure multicouche et son procédé de production

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TW201418179A (zh) 2014-05-16
KR20150045957A (ko) 2015-04-29
TWI593649B (zh) 2017-08-01
CN104487391A (zh) 2015-04-01
JPWO2014030521A1 (ja) 2016-07-28
CN104487391B (zh) 2017-08-25

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