JP2013079181A - Glass roll and treatment method relating to manufacture of glass film - Google Patents

Glass roll and treatment method relating to manufacture of glass film Download PDF

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JP2013079181A
JP2013079181A JP2011221328A JP2011221328A JP2013079181A JP 2013079181 A JP2013079181 A JP 2013079181A JP 2011221328 A JP2011221328 A JP 2011221328A JP 2011221328 A JP2011221328 A JP 2011221328A JP 2013079181 A JP2013079181 A JP 2013079181A
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glass
glass film
film
protective film
roll
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JP5761512B2 (en
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Naotoshi INAYAMA
尚利 稲山
Yasuo Teranishi
妥夫 寺西
Michiharu Eda
道治 江田
Takahide Fujii
孝英 藤居
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Nippon Electric Glass Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a treatment relating to manufacture of a glass film, which is applied to the end face of the glass film while reliably protecting the surface of the glass film.SOLUTION: A glass roll 1 is obtained by overlapping a protective film 3 on at least one surface of a glass film 2 and winding up the films into a roll, in which the glass film 2 and the protective film 3 do not adhere to each other, and both ends 2a in the width direction of the glass film 2 protrude from the protective film 3.

Description

本発明は、ガラスロールおよびガラスフィルムの製造関連処理方法に関する。   The present invention relates to a glass roll and a glass film production-related treatment method.

近年、液晶ディスプレイや有機ＥＬディスプレイなどのフラットパネルディスプレイ用のガラス基板に代表されるように、各種分野において、フィルム状まで薄板化されたガラス板（以下、ガラスフィルムという。）が利用されつつある。   In recent years, as represented by glass substrates for flat panel displays such as liquid crystal displays and organic EL displays, glass plates (hereinafter referred to as glass films) that have been thinned to a film shape are being used in various fields. .

この種のガラスフィルムは、可撓性に富むため、巻芯などの外周にロール状に巻き取った梱包形態が採用される場合がある。   Since this kind of glass film is rich in flexibility, a packing form wound in a roll shape around the outer periphery of a core or the like may be employed.

その一方で、この種のガラスフィルムは、厚板のガラス板に比して機械的強度が低く、破損を来たし易い。そのため、ガラスフィルム単独では、取り扱いが非常に難しいという問題がある。   On the other hand, this type of glass film has a lower mechanical strength than a thick glass plate and easily breaks. Therefore, the glass film alone has a problem that it is very difficult to handle.

そこで、例えば、特許文献１や特許文献２には、ガラスフィルムをロール状に巻き取った梱包形態において、ガラスフィルムに保護シート又はフィルムを貼着してガラスフィルムを保護することが開示されている。   Therefore, for example, Patent Document 1 and Patent Document 2 disclose that in a packing form in which a glass film is rolled up, a protective sheet or film is attached to the glass film to protect the glass film. .

詳細には、特許文献１には、ガラスフィルムの少なくとも一方の面に、その全面に亘って保護フィルムを剥離可能に貼着することが記載されている。同文献では、ガラスフィルムと保護フィルムとのそれぞれの端面は、互いに揃えられた状態となっている。一方、特許文献２には、ガラスフィルムの両面に、ガラスフィルムの縁部を覆うように保護シートを貼着することが記載されている。   Specifically, Patent Document 1 describes that a protective film is detachably attached to at least one surface of a glass film over the entire surface. In the same document, the end surfaces of the glass film and the protective film are aligned with each other. On the other hand, Patent Document 2 describes that a protective sheet is attached to both surfaces of a glass film so as to cover the edge of the glass film.

特開２００１−９７７３３号公報JP 2001-97733 A 特開２０１０−２２８１６６号公報JP 2010-228166 A

ところで、ガラスフィルムの端面には、研磨（機械研磨や化学研磨）などの端面処理や、欠陥の有無などを調べるための端面検査が行われるのが通例である。   By the way, the end face of the glass film is usually subjected to end face processing such as polishing (mechanical polishing or chemical polishing) or end face inspection for examining the presence or absence of defects.

しかしながら、特許文献１及び特許文献２に開示されているように、ガラスフィルムの端部が保護フィルムによって覆われていると、そのままの状態ではガラスフィルムの端面処理や、端面検査などの端面の製造関連処理を行うことができない。また、仮に製造関連処理に先立ってガラスフィルムの端部から保護フィルムを剥離したときには、ガラスフィルムの表面に傷が生じるおそれがあり、場合によっては、ガラスフィルムが破損するおそれがある。   However, as disclosed in Patent Document 1 and Patent Document 2, when the end portion of the glass film is covered with a protective film, the end face processing of the glass film or the end face manufacturing such as end face inspection is performed as it is. Related processing cannot be performed. Also, if the protective film is peeled off from the end of the glass film prior to the manufacturing-related process, the surface of the glass film may be damaged, and in some cases, the glass film may be damaged.

本発明は、以上の実情に鑑み、ガラスフィルムの表面を確実に保護しつつ、ガラスフィルムの端面に対して製造関連処理を施すことを可能にすることを技術的課題とする。   In view of the above circumstances, an object of the present invention is to make it possible to perform manufacturing-related processing on an end face of a glass film while reliably protecting the surface of the glass film.

上記の課題を解決するために創案された本発明は、ガラスフィルムの少なくとも一方の面に保護フィルムを重ねて、ロール状に巻き取ったガラスロールであって、前記ガラスフィルムと前記保護フィルムとが互いに非接着であり、前記ガラスフィルムの幅方向両端部が、前記保護フィルムから食み出していることに特徴づけられる。   The present invention created in order to solve the above-mentioned problems is a glass roll obtained by laminating a protective film on at least one surface of a glass film and winding it into a roll shape, wherein the glass film and the protective film are The glass films are non-adhering to each other, and both end portions in the width direction of the glass film protrude from the protective film.

このような構成によれば、ガラスフィルムの幅方向中央部は、保護フィルムによって保護される。また、ガラスフィルムの幅方向両端部は、保護フィルムから食み出した状態で露出しているため、ガラスフィルムの幅方向両端部に含まれる幅方向両端面に、研磨や検査などの製造関連処理をそのまま施すことができる。なお、ガラスフィルムと保護フィルムは、互いに非接着であることから、ガラスフィルムと保護フィルムを分離する際に、ガラスフィルムに不要な力を作用させることなく両者を容易に分離することができる。   According to such a configuration, the central portion in the width direction of the glass film is protected by the protective film. In addition, since both end portions in the width direction of the glass film are exposed in a state of protruding from the protective film, manufacturing-related processing such as polishing and inspection is performed on both end surfaces in the width direction included in both end portions in the width direction of the glass film. Can be applied as it is. In addition, since a glass film and a protective film are mutually non-adhesive, when separating a glass film and a protective film, both can be isolate | separated easily, without making unnecessary force act on a glass film.

上記の構成において、前記ガラスフィルムの食み出し幅Ｌ［ｍ］は、

Figure 2013079181

なる関係を満足することが好ましい。ただし、ｇ：重力加速度［ｍ／ｓ２］、Ｅ：ガラスフィルムのヤング率［Ｐａ］、ρ：ガラスフィルムの密度［ｋｇ／ｍ３］、σ：ガラスフィルムのポアソン比、ｔ１：ガラスフィルムの厚み［ｍ］、ｔ２：保護フィルムの厚み［ｍ］とする。 In the above configuration, the protrusion width L [m] of the glass film is:
Figure 2013079181
It is preferable to satisfy the following relationship. Where g: acceleration of gravity [m / s 2 ], E: Young's modulus of glass film [Pa], ρ: density of glass film [kg / m 3 ], σ: Poisson's ratio of glass film, t 1 : glass film Thickness [m], t 2 : thickness of protective film [m].

このようにすれば、ガラスロールから巻き出したガラスフィルムの幅方向両端部の垂れ下がりを、保護フィルムの厚みよりも小さくすることができる。そのため、ガラスロールから保護フィルムが重ねられたガラスフィルムを巻き出す際に、巻き出した部分に対応するガラスフィルムの幅方向両端部が垂れ下がって、ガラスロールと接触するという事態を回避することができる。   If it does in this way, the drooping of the width direction both ends of the glass film unwound from the glass roll can be made smaller than the thickness of a protective film. Therefore, when unwinding the glass film on which the protective film is overlaid from the glass roll, it is possible to avoid a situation in which both ends in the width direction of the glass film corresponding to the unwound portion hang down and come into contact with the glass roll. .

上記の構成において、前記ガラスフィルムの食み出し幅Ｌ［ｍ］は、

Figure 2013079181

なる関係を満足することが好ましい。ただし、数２中の各符号は、上記の数１と同様とする。 In the above configuration, the protrusion width L [m] of the glass film is:
Figure 2013079181
It is preferable to satisfy the following relationship. However, each symbol in Equation 2 is the same as that in Equation 1 above.

このようにすれば、保護フィルムから食み出したガラスフィルムの影響を受けることなく、ガラスロールから巻き出したガラスフィルムを安定して搬送することが可能となる。   If it does in this way, it will become possible to convey stably the glass film unwound from the glass roll, without receiving the influence of the glass film which protruded from the protective film.

上記の課題を解決するために創案された本発明は、ガラスフィルムの幅方向両端面に対して、端面処理と端面検査の少なくとも一方からなる製造関連処理を行うガラスフィルムの製造関連処理方法であって、前記ガラスフィルムの少なくとも一方の面に、前記ガラスフィルムよりも幅方向寸法の小さい保護フィルムを互いに非接着な状態で重ねてロール状に巻き取って、前記ガラスフィルムの幅方向両端部が前記保護フィルムから食み出したガラスロールを作製した後に、前記保護フィルムから食み出した前記ガラスフィルムの幅方向両端部に含まれる幅方向両端面に前記製造関連処理を行うことに特徴づけられる。   The present invention devised to solve the above problems is a glass film manufacturing related processing method for performing manufacturing related processing consisting of at least one of end surface processing and end surface inspection on both end surfaces in the width direction of the glass film. Then, on at least one surface of the glass film, a protective film having a width dimension smaller than that of the glass film is overlapped in a non-adhering state and wound into a roll shape, and both ends in the width direction of the glass film are After producing the glass roll which protruded from the protective film, it is characterized by performing the said manufacture related process on the width direction both end surfaces contained in the width direction both ends of the said glass film which protruded from the said protective film.

このような方法によれば、既に述べた対応する構成と同様の作用効果を享受することができる。   According to such a method, it is possible to receive the same operational effects as the corresponding configuration already described.

以上のような本発明によれば、ガラスフィルムから保護フィルムを分離しなくても、保護フィルムでガラスフィルムを保護しつつ、ガラスフィルムの幅方向両端面にそのまま製造関連処理を施すことができる。   According to the present invention as described above, even if the protective film is not separated from the glass film, the production-related treatment can be performed as it is on the both end surfaces in the width direction of the glass film while protecting the glass film with the protective film.

本発明の一実施形態に係るガラスロールを示す斜視図である。It is a perspective view which shows the glass roll which concerns on one Embodiment of this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 本実施形態に係るガラスロールのガラスフィルムの端面に製造関連処理を施す際の状況の一例を説明するための側面図である。It is a side view for demonstrating an example of the condition at the time of performing manufacture related process to the end surface of the glass film of the glass roll which concerns on this embodiment. 本実施形態に係るガラスロールのガラスフィルムの端面に製造関連処理を施す際の状況の一例を説明するための平面図である。It is a top view for demonstrating an example of the condition at the time of performing manufacture related process to the end surface of the glass film of the glass roll which concerns on this embodiment. 図４のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 本実施形態に係るガラスロールのガラスフィルムの端面に製造関連処理を施す際の状況の他の一例を説明するための概念図である。It is a conceptual diagram for demonstrating another example of the condition at the time of performing manufacture related process to the end surface of the glass film of the glass roll which concerns on this embodiment.

以下、本発明の実施形態を図面を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１に示すように、本発明の一実施形態に係るガラスロール１は、ガラスフィルム２の一方の面に保護フィルム３を重ね、これらを一体的に巻芯４の外周にロール状に巻き取ったものである。   As shown in FIG. 1, a glass roll 1 according to an embodiment of the present invention has a protective film 3 stacked on one surface of a glass film 2, and these are integrally wound around the outer periphery of a core 4 in a roll shape. It is a thing.

ガラスロール１に含まれるガラスフィルム２と保護フィルム３とは、互いに非接着である。保護フィルム３は、ガラスフィルム２よりも幅方向（図中の短手方向）寸法が小さく、ガラスフィルム２の幅方向両端部２ａが、保護フィルム３から食み出している。すなわち、ガラスフィルム２の幅方向中央部２ｂのみが保護フィルム３で保護されている。ここで、ガラスフィルム２の食み出し幅は、ガラスフィルム２の幅方向両側で実質的に同一であることが好ましい。なお、図示例では、ガラスフィルム２の幅方向と直交する長手方向（巻き取り方向）において、保護フィルム３がガラスフィルム２から食み出した状態となっているが、巻き取り方向において保護フィルム３はガラスフィルム２から食み出していなくてもよい。   The glass film 2 and the protective film 3 included in the glass roll 1 are not bonded to each other. The protective film 3 is smaller in the width direction (short side direction in the figure) than the glass film 2, and both end portions 2 a in the width direction of the glass film 2 protrude from the protective film 3. That is, only the central portion 2 b in the width direction of the glass film 2 is protected by the protective film 3. Here, the protruding width of the glass film 2 is preferably substantially the same on both sides in the width direction of the glass film 2. In the illustrated example, the protective film 3 protrudes from the glass film 2 in the longitudinal direction (winding direction) perpendicular to the width direction of the glass film 2, but the protective film 3 in the winding direction. May not protrude from the glass film 2.

図２に示すように、ガラスロール１は、ガラスフィルム２の内周面側に保護フィルム３が重ねられた状態となっている。すなわち、巻き取る段階では、ガラスフィルム２が外周側、保護フィルム３が内周側に位置するように、巻芯４の外周面に巻き取られる。なお、ガラスロール１は、ガラスフィルム２の外周面側に保護フィルム３が重ねられた状態となっていてもよい。   As shown in FIG. 2, the glass roll 1 is in a state in which a protective film 3 is stacked on the inner peripheral surface side of the glass film 2. That is, in the winding stage, the glass film 2 is wound around the outer peripheral surface of the core 4 so that the glass film 2 is positioned on the outer peripheral side and the protective film 3 is positioned on the inner peripheral side. The glass roll 1 may be in a state in which the protective film 3 is overlapped on the outer peripheral surface side of the glass film 2.

そして、図２に符号Ｘを付した拡大図に示すように、ガラスフィルム２の食み出し幅Ｌの上限値は、上記の数１を満足するようにすることが好ましい。このようにすれば、ガラスロール１から巻き出したガラスフィルム２の幅方向両端部２ａの垂れ下がりを、保護フィルム３の厚みよりも小さくすることができる。そのため、ガラスフィルム２の幅方向両端部２ａの相互間に隙間Ｓが形成された状態を維持することができる。また、ガラスロール１から保護フィルム３とガラスフィルム２を共に巻き出す際に、巻き出した部分に対応するガラスフィルム２の幅方向両端部２ａが垂れ下がって、ガラスロール１と接触するという事態を回避することができる。なお、数１は、片持ち梁の理論たわみ量の計算式を応用することで導出されたものである。一方、ガラスフィルム２の食み出し幅Ｌの下限値は、製造関連処理の作業性の観点から、例えば、１ｍｍ程度とされる。   And as shown in the enlarged view which attached | subjected the code | symbol X to FIG. 2, it is preferable that the upper limit of the protrusion width L of the glass film 2 satisfies said Formula 1. FIG. If it does in this way, the drooping of the width direction both ends 2a of the glass film 2 unwound from the glass roll 1 can be made smaller than the thickness of the protective film 3. Therefore, it is possible to maintain a state in which the gap S is formed between the both ends 2a in the width direction of the glass film 2. Further, when both the protective film 3 and the glass film 2 are unwound from the glass roll 1, a situation in which both end portions 2 a in the width direction of the glass film 2 corresponding to the unwound portion hang down and come into contact with the glass roll 1 is avoided. can do. In addition, Formula 1 is derived | led-out by applying the calculation formula of the theoretical deflection amount of a cantilever beam. On the other hand, the lower limit value of the protrusion width L of the glass film 2 is, for example, about 1 mm from the viewpoint of workability of manufacturing-related processing.

具体的には、ｇ＝９．８［ｍ/ｓ２］、Ｅ＝７３×１０９［Ｐａ］、ρ＝２．４５×１０３［ｋｇ／ｍ３］、σ＝０．２とすると、ガラスフィルム２の食み出し量を［ｍｍ］で表した上限値は次のように規定される。 Specifically, when g = 9.8 [m / s 2 ], E = 73 × 10 9 [Pa], ρ = 2.45 × 10 3 [kg / m 3 ], and σ = 0.2, The upper limit value of the amount of protrusion of the glass film 2 expressed in [mm] is defined as follows.

Figure 2013079181
Figure 2013079181

以上のように構成されたガラスロール１は、図３に示すように、ガラスフィルム２と保護フィルム３とが共に巻き出され、ガラスフィルム２の下に保護フィルム３を敷設した状態で搬送手段１１上に載置される。そして、搬送手段１１上に載置されたガラスフィルム２と保護フィルム３は、所定の搬送方向（図中の矢印方向）に搬送される。搬送手段１１の搬送経路上には、図４及び図５に示すように、上流側にガラスフィルム２の端面研磨（端面処理）を行う回転砥石１２が配置され、下流側にガラスフィルム２の端面欠陥の有無を検査（端面検査）するカメラ１３が配置されている。そのため、搬送手段１１の搬送に伴って、保護フィルム３から食み出したガラスフィルム２の幅方向両端部２ａに、製造関連処理が順次施される。なお、図示例では、製造関連処理が終了した後に、再び、保護フィルム３が重ねられた状態でガラスフィルム２が別の巻芯４の外周面に巻き取られ、ガラスロール１として回収するようになっている。すなわち、いわゆるロール・トゥー・ロール方式で、ガラスフィルム２の端面に製造関連処理が施されるようになっている。   As shown in FIG. 3, the glass roll 1 configured as described above has the glass film 2 and the protective film 3 unwound, and the conveying means 11 with the protective film 3 laid under the glass film 2. Placed on top. And the glass film 2 and the protective film 3 which were mounted on the conveyance means 11 are conveyed in a predetermined | prescribed conveyance direction (arrow direction in a figure). As shown in FIGS. 4 and 5, a rotating grindstone 12 that polishes the end face of the glass film 2 (end face processing) is arranged on the upstream side, and the end face of the glass film 2 is located on the downstream side. A camera 13 for inspecting for the presence or absence of defects (end surface inspection) is disposed. Therefore, manufacturing-related processing is sequentially performed on both ends 2a in the width direction of the glass film 2 protruding from the protective film 3 as the transport unit 11 is transported. In the illustrated example, after the manufacturing-related process is finished, the glass film 2 is wound around the outer peripheral surface of another core 4 again with the protective film 3 overlaid and recovered as a glass roll 1. It has become. That is, manufacturing-related processing is performed on the end surface of the glass film 2 by a so-called roll-to-roll method.

この際、ガラスフィルム２の幅方向中央部２ｂは、保護フィルム３によって保護され、ガラスフィルム２の幅方向両端部２ａは、保護フィルム３から食み出した状態で外部に露出している。そのため、保護フィルム３を分離しなくても、ガラスフィルム２の幅方向両端部２ａに含まれる幅方向両端面に、研磨や欠陥検査などの製造関連処理をそのまま施すことができる。更に、ガラスフィルム２と保護フィルム３は、互いに非接着であることから、保護フィルム３が不要になった時でも、ガラスフィルム２と保護フィルム３を容易に分離することができる。したがって、製造関連処理時に、ガラスフィルム２が破損するという事態を防止することが可能となる。   Under the present circumstances, the width direction center part 2b of the glass film 2 is protected by the protective film 3, and the width direction both ends 2a of the glass film 2 are exposed outside in the state which protruded from the protective film 3. FIG. Therefore, even if it does not isolate | separate the protective film 3, manufacturing related processes, such as grinding | polishing and a defect inspection, can be performed to the width direction both end surfaces contained in the width direction both ends 2a of the glass film 2 as it is. Furthermore, since the glass film 2 and the protective film 3 are not adhered to each other, the glass film 2 and the protective film 3 can be easily separated even when the protective film 3 becomes unnecessary. Therefore, it becomes possible to prevent the situation where the glass film 2 is broken during the manufacturing-related processing.

ここで、以上のように製造関連処理時に、ガラスフィルム２の搬送を伴う場合には、ガラスフィルム２の食み出し幅Ｌの上限値は、上記の数２を満足するようにすることが好ましい。数２の条件を数１よりも厳格に規定している理由は、ガラスフィルム２の自重による垂れ下がりに加えて、搬送に伴うガラスフィルム２のバタツキを考慮しているためである。   Here, at the time of manufacturing-related processing as described above, when the conveyance of the glass film 2 is involved, it is preferable that the upper limit value of the protrusion width L of the glass film 2 satisfies the above formula 2. . The reason why the condition of Equation 2 is defined more strictly than Equation 1 is that in addition to the sagging due to the weight of the glass film 2, the fluttering of the glass film 2 associated with the conveyance is taken into consideration.

上記の端面処理としては、機械研磨以外にも、例えば、薬液による端面処理、樹脂による保護処理、蒸着膜等によるマスキング処理、化学研磨などが挙げられる。また、上記の端面検査としては、端面欠陥の検査以外にも、端面粗度の検査などが挙げられる。   Examples of the end face treatment include, in addition to mechanical polishing, end face treatment with a chemical solution, protection treatment with a resin, masking treatment with a deposited film, chemical polishing, and the like. Moreover, as said end surface inspection, the inspection of end surface roughness etc. are mentioned besides the inspection of an end surface defect.

ガラスフィルム２の厚みは、例えば、３００μｍ以下、５〜３００μｍであることが好ましく、１０〜２００μｍがより好ましく、２０〜１００μｍが最も好ましい。   The thickness of the glass film 2 is, for example, preferably 300 μm or less and 5 to 300 μm, more preferably 10 to 200 μm, and most preferably 20 to 100 μm.

ガラスフィルム２は、無アルカリガラスであることが好ましい。   The glass film 2 is preferably alkali-free glass.

ガラスフィルム２は、フラットパネルディスプレイ、太陽電池、有機ＥＬ照明、タッチパネル、デジタルサイネージ等のガラス基板として利用される。   The glass film 2 is used as a glass substrate for flat panel displays, solar cells, organic EL lighting, touch panels, digital signage, and the like.

一方、保護フィルム３の厚みは、例えば、２５０μｍ以下、３〜２５０μｍであることが好ましく、１０〜１００μｍであることがより好ましい。   On the other hand, the thickness of the protective film 3 is, for example, preferably 250 μm or less and 3 to 250 μm, and more preferably 10 to 100 μm.

保護フィルム３の材質としては、例えば、ポリエチレン、ポリ塩化ビニル、ポリエチレンテレフタレート、ポリ塩化ビニリデン、ポリプロピレン、ポリビニルアルコール、ポリエステル、ポリカーボネート、ポリスチレン、ポリアクリロニトリル、エチレン酢酸ビニル共重合体、エチレン−ビニルアルコール共重合体、エチレン−メタクリル酸共重合体、ポリアミド、セロファン、シリコーン樹脂等が利用できる。また、保護フィルム３の材質には、独立気泡型発泡樹脂を用いてもよい。   Examples of the material of the protective film 3 include polyethylene, polyvinyl chloride, polyethylene terephthalate, polyvinylidene chloride, polypropylene, polyvinyl alcohol, polyester, polycarbonate, polystyrene, polyacrylonitrile, ethylene vinyl acetate copolymer, ethylene-vinyl alcohol copolymer. Polymers, ethylene-methacrylic acid copolymers, polyamides, cellophane, silicone resins and the like can be used. Moreover, you may use a closed-cell type foamed resin for the material of the protective film 3. FIG.

なお、本発明は、以上の実施形態に限定されるものではなく、種々の形態で実施することができる。例えば、上記の実施形態では、ガラスフィルム２の片面にのみ保護フィルム３を重ねる場合を説明したが、ガラスフィルム２の両面に、保護フィルム３をそれぞれ重ねた状態で、ガラスフィルム２の幅方向両端部２ａが食み出すようにしてもよい。このようにすれば、ガラスフィルム２の幅方向中央部の両面が保護フィルム３によって保護されることから、製品となるガラスフィルム２の幅方向中央部に傷や埃などが付くのをより確実に防止することができる。   In addition, this invention is not limited to the above embodiment, It can implement with a various form. For example, in the above embodiment, the case where the protective film 3 is overlaid only on one side of the glass film 2 has been described. However, both ends of the glass film 2 in the width direction are overlaid on both sides of the glass film 2. The part 2a may protrude. If it does in this way, since both surfaces of the width direction center part of the glass film 2 are protected by the protective film 3, it will be more reliably that a damage | wound, dust, etc. attach to the width direction center part of the glass film 2 used as a product. Can be prevented.

また、上記の実施形態では、ロール・トゥー・ロール方式で、ガラスフィルム２の端面に製造関連処理を連続的に施す場合を説明したが、ガラスロール１からガラスフィルム２と保護フィルム３を所定量だけ間欠的に巻き出すとともに、その巻き出したガラスフィルム２と保護フィルム３を定盤等の上に静止させた状態で、製造関連処理を行ってもよい。また、例えば図６に示すように、製造関連処理として、ガラスフィルム２の幅方向端面に化学研磨を施す場合には、ロール状に巻き取られた状態のまま、ガラスフィルム２の幅方向端部をエッチング液１４に浸漬するようにしてもよい。   Moreover, although said embodiment demonstrated the case where a manufacturing related process was continuously performed to the end surface of the glass film 2 by a roll-to-roll system, the glass film 2 and the protective film 3 are predetermined amount from the glass roll 1. In addition to the intermittent unwinding, the unrolled glass film 2 and the protective film 3 may be subjected to manufacturing-related processing in a state where they are stationary on a surface plate or the like. For example, as shown in FIG. 6, as a manufacturing-related process, when chemical polishing is performed on the end surface in the width direction of the glass film 2, the end portion in the width direction of the glass film 2 is kept in a rolled state. May be immersed in the etching solution 14.

ガラスフィルムの厚みを１００μｍとし、保護フィルムとしての樹脂フィルムの厚みを３８μｍとし、ガラスフィルムの食み出し量と、傷の発生の関係を検査した。なお、フィルム積層体は平面状とする。その結果は、表２に示すとおりである。   The thickness of the glass film was 100 μm, the thickness of the resin film as the protective film was 38 μm, and the relationship between the amount of protrusion of the glass film and the occurrence of scratches was examined. In addition, let a film laminated body be planar shape. The results are as shown in Table 2.

Figure 2013079181
Figure 2013079181

また、ガラスフィルムの厚みを５０μｍとし、保護フィルムとしての樹脂フィルムの厚みを３８μｍとし、ガラスフィルムの食み出し量と、傷の発生の関係を検査した。なお、フィルム積層体は平面状とする。その結果は、表３に示すとおりである。   Moreover, the thickness of the glass film was 50 micrometers, the thickness of the resin film as a protective film was 38 micrometers, and the relationship between the protrusion amount of a glass film and generation | occurrence | production of a damage | wound was test | inspected. In addition, let a film laminated body be planar shape. The results are as shown in Table 3.

Figure 2013079181
Figure 2013079181

１ ガラスロール
２ ガラスフィルム
２ａ 幅方向両端部
２ｂ 幅方向中央部
３ 保護フィルム
４ 巻芯 DESCRIPTION OF SYMBOLS 1 Glass roll 2 Glass film 2a Width direction both ends 2b Width direction center part 3 Protective film 4 Core

Claims (4)

ガラスフィルムの少なくとも一方の面に保護フィルムを重ねて、ロール状に巻き取ったガラスロールであって、
前記ガラスフィルムと前記保護フィルムとが互いに非接着であり、前記ガラスフィルムの幅方向両端部が、前記保護フィルムから食み出していることを特徴とするガラスロール。 It is a glass roll that is rolled up in a roll shape by overlaying a protective film on at least one surface of the glass film,
The glass roll, wherein the glass film and the protective film are not bonded to each other, and both end portions in the width direction of the glass film protrude from the protective film. 前記ガラスフィルムの食み出し幅Ｌ［ｍ］が、
Figure 2013079181
なる関係を満足することを特徴とする請求項１に記載のガラスロール。
ただし、ｇ：重力加速度［ｍ／ｓ２］、Ｅ：ガラスフィルムのヤング率［Ｐａ］、ρ：ガラスフィルムの密度［ｋｇ／ｍ３］、σ：ガラスフィルムのポアソン比、ｔ１：ガラスフィルムの厚み［ｍ］、ｔ２：保護フィルムの厚み［ｍ］ The protruding width L [m] of the glass film is
Figure 2013079181
The glass roll according to claim 1, wherein the following relationship is satisfied.
Where g: acceleration of gravity [m / s 2 ], E: Young's modulus of glass film [Pa], ρ: density of glass film [kg / m 3 ], σ: Poisson's ratio of glass film, t 1 : glass film Thickness [m], t 2 : thickness of protective film [m] 前記ガラスフィルムの食み出し幅Ｌ［ｍ］が、
Figure 2013079181
なる関係を満足することを特徴とする請求項１に記載のガラスロール。
ただし、ｇ：重力加速度［ｍ／ｓ２］、Ｅ：ガラスフィルムのヤング率［Ｐａ］、ρ：ガラスフィルムの密度［ｋｇ／ｍ３］、σ：ガラスフィルムのポアソン比、ｔ１：ガラスフィルムの厚み［ｍ］、ｔ２：保護フィルムの厚み［ｍ］ The protruding width L [m] of the glass film is
Figure 2013079181
The glass roll according to claim 1, wherein the following relationship is satisfied.
Where g: acceleration of gravity [m / s 2 ], E: Young's modulus of glass film [Pa], ρ: density of glass film [kg / m 3 ], σ: Poisson's ratio of glass film, t 1 : glass film Thickness [m], t 2 : thickness of protective film [m] ガラスフィルムの幅方向両端面に対して、端面処理と端面検査の少なくとも一方からなる製造関連処理を行うガラスフィルムの製造関連処理方法であって、
前記ガラスフィルムの少なくとも一方の面に、前記ガラスフィルムよりも幅方向寸法の小さい保護フィルムを互いに非接着な状態で重ねてロール状に巻き取って、前記ガラスフィルムの幅方向両端部が前記保護フィルムから食み出したガラスロールを作製した後に、前記保護フィルムから食み出した前記ガラスフィルムの幅方向両端部に含まれる幅方向両端面に前記製造関連処理を行うことを特徴とするガラスフィルムの製造関連処理方法。 It is a manufacturing related processing method for a glass film that performs manufacturing related processing consisting of at least one of end surface processing and end surface inspection for both width direction end surfaces of the glass film,
On at least one surface of the glass film, a protective film having a width dimension smaller than that of the glass film is overlapped in a non-adhering state and wound into a roll shape, and both ends in the width direction of the glass film are the protective film. After producing the glass roll which protruded from, the said manufacturing related process is performed to the width direction both end surfaces contained in the width direction both ends of the said glass film which protruded from the said protective film of the glass film characterized by the above-mentioned. Manufacturing related processing methods.
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