WO2012029830A1 - ガラス-樹脂積層体、およびそれを巻き取ったガラスロール、並びにガラスロールの製造方法 - Google Patents
ガラス-樹脂積層体、およびそれを巻き取ったガラスロール、並びにガラスロールの製造方法 Download PDFInfo
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- WO2012029830A1 WO2012029830A1 PCT/JP2011/069713 JP2011069713W WO2012029830A1 WO 2012029830 A1 WO2012029830 A1 WO 2012029830A1 JP 2011069713 W JP2011069713 W JP 2011069713W WO 2012029830 A1 WO2012029830 A1 WO 2012029830A1
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- Prior art keywords
- glass
- film
- long
- resin
- resin film
- Prior art date
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- 239000011521 glass Substances 0.000 title claims abstract description 135
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 title claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000011347 resin Substances 0.000 claims abstract description 89
- 229920005989 resin Polymers 0.000 claims abstract description 89
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 description 16
- 239000003513 alkali Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000006059 cover glass Substances 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000007500 overflow downdraw method Methods 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 150000001768 cations Chemical group 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003280 down draw process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920003050 poly-cycloolefin Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
-
- 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
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24752—Laterally noncoextensive components
Definitions
- the present invention provides a glass film used for glass substrates used in flat panel displays such as liquid crystal displays and organic EL displays, glass substrates for devices such as glass substrates for solar cells, cover glasses for organic EL lighting, etc.
- the present invention relates to a glass-resin laminate laminated on a film, a glass roll wound with the glass-resin laminate, and a method for producing the glass roll.
- flat panel displays such as liquid crystal displays, plasma displays, organic EL displays, and field emission displays have become widespread instead of CRT displays from the viewpoint of space saving.
- These flat panel displays are required to be thinner.
- organic EL displays are required to be easily carried by folding or winding, and to be usable not only on flat surfaces but also on curved surfaces.
- it is not limited to a display that can be used not only on a flat surface but also on a curved surface.
- the surface of an object having a curved surface such as a car body surface, a roof of a building, a pillar, or an outer wall. If a solar cell can be formed or organic EL illumination can be formed, the application will be expanded.
- glass substrate and cover glass used in these devices are required to be further thinned and highly flexible.
- glass films that have been made thinner and have high flexibility are glass substrates for devices such as lithium ion batteries, digital signage, touch panels, electronic paper, and other glass substrates, organic EL lighting cover glasses, pharmaceutical packages and windows. It is also expected to be used for reducing the weight of sheet glass.
- Patent Document 1 proposes a glass film having a thickness of 200 ⁇ m or less.
- Patent Document 2 proposes a glass-resin laminate in which a peelable resin film is laminated on a glass film.
- the glass-resin laminate described in Patent Document 2 may be greatly warped to the resin film side when a peelable resin film is attached to one surface of the glass film in a tensioned state. As a result, wrinkles are generated in the resin film, and the phenomenon that the resin film is peeled off occurs, and there is a problem that the effect of preventing the glass film from being damaged cannot be obtained sufficiently.
- the present invention was made in order to solve the problems of the prior art as described above, and suppresses warping after bonding a resin film to a long glass film, and the resin film caused by warping
- An object of the present invention is to provide a glass-resin laminate capable of reliably preventing wrinkles and peeling.
- the present invention provides a long resin film having a thickness of 1 to 300 ⁇ m and a tensile elastic modulus of 0.3 GPa or more on at least one surface of a long glass film having a thickness of 1 to 300 ⁇ m.
- a glass-resin laminate is provided by being peelably laminated in a state of protruding from both ends in the short length direction (width direction) of the long glass film.
- the adhesive strength of the long resin film is preferably 1 ⁇ 10 ⁇ 3 to 5 ⁇ 10 ⁇ 1 N / 10 mm.
- the length of the long glass film is preferably 1000 mm or more.
- the long glass film preferably has a width of 5 mm or more.
- the long resin film protrudes 1 mm or more from both ends in the short direction of the long glass film.
- the present invention also provides a glass roll formed by winding the glass-resin laminate.
- a long resin film having a thickness of 1 to 300 ⁇ m and a tensile elastic modulus of 0.3 GPa or more is applied to at least one surface of a long glass film having a thickness of 1 to 300 ⁇ m.
- a method for producing a glass roll by preparing a glass-resin laminate by peeling it off in a state of protruding from both ends in the short direction, and then winding the glass-resin laminate into a roll.
- the method for producing a glass roll of the present invention it is preferable to laminate the long glass film with tension applied to the long resin film.
- the glass-resin laminate of the present invention has a long resin film having a thickness of 1 to 300 ⁇ m and a tensile modulus of 0.3 GPa or more that can be peeled on at least one surface of a long glass film having a thickness of 1 to 300 ⁇ m.
- the glass-resin laminate can be prevented from warping, and the resin film can be prevented from wrinkling and peeling due to warpage, because the glass glass is laminated in a state of protruding from both ends in the short direction of the long glass film. be able to.
- the reason why the glass-resin laminate is warped is that when the resin film is bonded to one side of the glass film with tension applied, the resin film is restored to its original shape. Conceivable. As the warp of the glass-resin laminate increases, wrinkles occur in the resin film, and the glass film becomes easier to peel off.
- the glass-resin laminate of the present invention has a tensile elasticity modulus of 0.3 GPa or more for the long resin film, so the force to restore after bonding to the glass film is small, and the warpage is minimized. be able to.
- the long resin film is laminated in a state where it protrudes from both ends in the short direction of the long glass film, at least one surface of the glass film is covered with the resin film. It is possible to suppress the peeling of the resin film due to uneven stress.
- the tensile elasticity modulus in this invention is a value in the temperature of 23 degreeC.
- the adhesive strength of the long resin sheet is 1 ⁇ 10 ⁇ 3 to 5 ⁇ 10 ⁇ 1 N / 10 mm, it is weakly tacky. It can be peeled off.
- the glass-resin laminate of the present invention can be easily wound around a glass roll when the length of the long glass film is 1000 mm or more.
- the length of the long glass film is preferably 1 ⁇ 10 7 mm (10000 m) or less.
- the glass-resin laminate of the present invention can be used for various displays, electronic devices, or solar cells when the long glass film has a width of 5 mm or more.
- the width of the long glass film becomes larger, it becomes easier to apply to an increase in size, and therefore, it is preferably 100 mm or more, 300 mm or more, 600 mm, or even 850 mm or more.
- the width of the long glass film is preferably 3000 mm or less.
- the long resin film can reliably protect the entire surface of the glass film if it protrudes 1 mm or more from both ends in the short direction of the long glass film. is there.
- the glass roll of the present invention is a wound body obtained by winding a glass-resin laminate in a roll shape, and is easy to pack and transport.
- a long resin film having a thickness of 1 to 300 ⁇ m and a peelable elastic modulus of 0.3 GPa or more is applied to at least one surface of a long glass film having a thickness of 1 to 300 ⁇ m.
- a glass-resin laminate is produced by winding a glass-resin laminate in a roll shape after the glass-resin laminate is produced by laminating the long glass film so as to protrude from both ends in the short direction. Warpage of the resin film can be suppressed, and wrinkling and peeling of the resin film due to warpage can be prevented.
- the manufacturing method of the invention in order to laminate the long resin film in a state of protruding from both ends in the short direction of the long glass film, the entire surface of at least one surface of the glass film is covered with the resin film. Can do.
- the glass roll manufacturing method of the present invention When the glass roll manufacturing method of the present invention is laminated on a long glass film in a state where tension is applied to the long resin film, generation of wrinkles or the like at the time of bonding can be prevented. Further, since the long resin film is laminated in a state where it protrudes from both ends in the short direction of the glass film, it is also possible to grip the protruding portion of the resin film and apply tension.
- FIG. 1 is a plan view showing a glass-resin laminate according to the present invention. It is the sectional view on the AA line of Fig.1 (a). It is explanatory drawing of the manufacturing apparatus of a glass film. It is explanatory drawing of the glass roll which concerns on this invention.
- the glass-resin laminate 1 according to the present invention has a long resin film 3 on one surface of a long glass film 2 from both ends in the short direction of the long glass film 2. It has a structure in which it is stacked in a protruding state.
- the material of the glass film 2 borosilicate glass, silica glass, soda lime glass, alkali-free glass, etc. can be used, and alkali-free glass is most preferred.
- the glass film 2 contains an alkali component, cation substitution occurs in the surface layer, so-called soda blowing phenomenon occurs, the structure becomes rough, and the glass film 2 is curved. This is because, when used, there is a possibility of damage from a roughened portion due to aging.
- the alkali-free glass is a glass that does not substantially contain an alkali component, and specifically, a glass having an alkali component of 1000 ppm or less.
- the content of the alkali component in the present invention is preferably 500 ppm or less, more preferably 300 ppm or less of the alkali component.
- the thickness of the glass film 2 is 1 to 300 ⁇ m, more preferably 5 to 200 ⁇ m, 10 to 100 ⁇ m, and 20 to 50 ⁇ m. As the thickness of the glass film 2 decreases, the strength tends to be insufficient, and the glass film 2 is easily damaged when the glass film 2 is peeled from the glass-resin laminate 1. On the other hand, as the thickness of the glass film 2 is increased, the flexibility is deteriorated, and it is difficult to wind up as a glass roll. The need to use a resin film is reduced.
- the glass film 2 used in the present invention can be formed by an overflow down draw method, a slot down draw method, a redraw method or the like, but is preferably formed by an overflow down draw method as shown in FIG.
- the overflow down draw method is a molding method in which both sides of the glass plate do not come into contact with the molded member when the glass plate is formed from molten glass, and the both sides (translucent surface) of the obtained glass plate are hardly damaged. This is because high surface quality can be obtained without polishing.
- the glass ribbon G immediately after the molten glass supplied to the wedge-shaped molded body 4 flows down the both side surfaces of the molded body 4 and joins at the lower end portion 41 is moved by a pair of cooling rollers 5. While contraction in the short direction is restricted, the film is stretched downward and thinned to a predetermined thickness. Next, the glass ribbon G having reached the predetermined thickness is gradually cooled in a slow cooling furnace (annealer), pulled downward by an annealing roller 6 or the like, removed from thermal distortion of the glass ribbon G, cut to a predetermined size, and then a glass film 2 is molded.
- a slow cooling furnace annealer
- the resin film 3 protrudes from both edges in the short direction of the glass film 2 and is laminated.
- the protruding amount is preferably 1 mm to 200 mm, more preferably 5 to 100 mm, 5 to 50 mm, and 10 to 40 mm from both ends 21 in the short direction of the glass film 2.
- the amount of protrusion of the resin film 3 increases, it becomes difficult to handle the glass-resin laminate.
- the thickness of the resin film 3 is 1 to 300 ⁇ m, preferably 10 to 200 ⁇ m, 30 to 100 ⁇ m.
- the warp of the glass-resin laminate 1 increases as the thickness of the resin film 3 increases.
- the handleability and strength decrease.
- the warp of the glass-resin laminate 1 decreases as the tensile modulus of the resin film 3 increases, it is preferably 0.3 GPa or more, 0.5 GPa or more, 1 GPa or more, or 2 GPa or more. Moreover, it is preferable that the tensile elasticity modulus of a resin film is below the Young's modulus of a glass film.
- a material of the resin film 3 polyethylene terephthalate, polyamide, polyimide, polyester, polycarbonate, acrylic, PEN, polypropylene, polystyrene, high density polyethylene, polycycloolefin, and the like can be used.
- a peelable adhesive layer (not shown) is formed on one surface (upper surface) of the resin film 3 and has an adhesive force of 1 ⁇ 10 ⁇ 3 to 5 ⁇ 10 ⁇ 1 N / 10 mm, 5 ⁇ 10 ⁇ 3 to It is preferably 3 ⁇ 10 ⁇ 1 N / 10 mm, 1 ⁇ 10 ⁇ 2 to 1 ⁇ 10 ⁇ 1 N / 10 mm.
- the resin film 3 becomes weakly sticky, so that the resin film 3 can be easily peeled (separated) from the glass film 2. If the adhesive strength is too small, sufficient adhesiveness cannot be obtained. Conversely, if the adhesive strength is too large, peeling becomes difficult.
- what is necessary is just to select suitably the material, thickness, etc. of an adhesion layer so that a desired characteristic may be acquired.
- a second resin film (not shown) may be laminated on the surface of the glass film 2 on which the resin film 3 is not laminated, if necessary. Thereby, the whole glass film 2 can be protected.
- the width of the second resin film may be substantially the same as or larger than the width of the resin film 3.
- An adhesive layer may be formed on the second resin film, but the adhesive layer may not be formed, and the second resin film may be adhered in a peelable manner by the adhesive force of the resin film 2. That is, both ends of the non-adhesive second resin film may be aligned with the protruding portion of the resin film 2, and both may be attached by the adhesive force of the resin film 2.
- a resin having flexibility so that winding can be performed, for example, a resin similar to the resin film 2.
- FIG. 3 is an explanatory diagram of a glass roll according to the present invention.
- the glass roll 7 according to the present invention is formed by winding the glass-resin laminate 1 described above into a roll shape.
- the glass roll 7 is wound on a core material with the resin film 3 of the glass-resin laminate 1 facing outside, and the resin film 3 protrudes from both ends in the short direction of the glass film 2. Since the tensile elastic modulus is 0.3 GPa or more, the resin film 3 is not warped even after the glass-resin laminate 1 is pulled out from the glass roll 7.
- the glass film 2 does not peel off itself.
- Table 1 shows the glass-resin laminates of the example (sample No. 1) and the comparative example (sample No. 2, 3).
- an alkali-free glass (OA-10G manufactured by Nippon Electric Glass Co., Ltd.) having a thickness of 50 ⁇ m, a width of 300 mm, and a length of 3000 mm was prepared.
- a resin film a resin film having a material, thickness, and width shown in the table and having a length of 3000 mm was prepared.
- PET means polyethylene terephthalate resin
- PE means polyethylene resin.
- An adhesive layer having a thickness of 1 ⁇ m and an adhesive strength of 2.7 ⁇ 10 ⁇ 2 N / 10 mm is formed on one surface of each resin film. ing.
- sample No. 1 As a result, sample No. In the glass-resin laminate of No. 1, no wrinkling or peeling was observed, but sample No. 1 as a comparative example. A few glass-resin laminates were peeled when the sample was bent in the reverse bending test. Moreover, in the flat placing test, there was a warped portion immediately after placing the sample, and after the resin film peeled from both ends in the short direction, the entire width was peeled in a few minutes.
- film formation treatment such as a transparent conductive film, patterning, It has been found that it can be easily incorporated into a roll-to-roll process when performing various electronic device manufacturing-related processes such as a cleaning process.
- the glass-resin laminate of the present invention is a glass substrate used for devices such as flat panel displays such as liquid crystal displays and organic EL displays, solar cells, cover glass for organic EL lighting, lithium ion batteries, digital signage, touch panels, It can be suitably used for reducing the weight of glass substrates for devices such as glass substrates such as electronic paper, pharmaceutical packages, and window glass.
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- Laminated Bodies (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
2 ガラスフィルム
21 両側端
3 樹脂フィルム
4 成形体
5 冷却ローラ
6 アニーラローラ
7 ガラスロール
Claims (8)
- 厚み1~300μmの長尺状ガラスフィルムの少なくとも一方の面に、厚み1~300μm、引張弾性率0.3GPa以上で、剥離可能な長尺状樹脂フィルムが、長尺状ガラスフィルムの短尺方向両側端から食み出した状態で積層されてなることを特徴とするガラス-樹脂積層体。
- 長尺状樹脂フィルムの粘着力が、1×10-3~5×10-1N/10mmであることを特徴とする請求項1に記載のガラス-樹脂積層体。
- 長尺状ガラスフィルムの長さが1000mm以上であることを特徴とする請求項1又は2に記載のガラス-樹脂積層体。
- 長尺状ガラスフィルムの幅が5mm以上であることを特徴とする請求項1~3のいずれかに記載のガラス-樹脂積層体。
- 長尺状樹脂フィルムは、長尺状ガラスフィルムの短尺方向両側端から1mm以上食み出してなることを特徴とする請求項1~4のいずれかに記載のガラス-樹脂積層体。
- 請求項1~5のいずれかに記載のガラス-樹脂積層体を巻き取ってなることを特徴とするガラスロール。
- 厚み1~300μmの長尺状ガラスフィルムの少なくとも一方の面に、厚み1~300μm、引張弾性率0.3GPa以上で、剥離可能な長尺状樹脂フィルムを、長尺状ガラスフィルムの短尺方向両側端から食み出した状態で積層することによってガラス-樹脂積層体を作製した後、前記ガラス-樹脂積層体をロール状に巻き取ることを特徴とするガラスロールの製造方法。
- 長尺状樹脂フィルムに張力を付与した状態で、長尺状ガラスフィルムに積層することを特徴とする請求項7に記載のガラスロールの製造方法。
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