JP5610261B2 - Glass plate laminate - Google Patents

Glass plate laminate Download PDF

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JP5610261B2
JP5610261B2 JP2009284193A JP2009284193A JP5610261B2 JP 5610261 B2 JP5610261 B2 JP 5610261B2 JP 2009284193 A JP2009284193 A JP 2009284193A JP 2009284193 A JP2009284193 A JP 2009284193A JP 5610261 B2 JP5610261 B2 JP 5610261B2
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glass plate
slip sheet
paper
glass
upper edge
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JP2011126724A (en
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龍腰　健太郎
健太郎 龍腰
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AGC Inc
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Asahi Glass Co Ltd
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Priority to JP2009284193A priority Critical patent/JP5610261B2/en
Priority to TW099143564A priority patent/TWI508853B/en
Priority to CN201010597859.7A priority patent/CN102114938B/en
Priority to KR1020100128058A priority patent/KR101650583B1/en
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    • 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
    • B32B17/065—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 paper or cardboard
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Optics & Photonics (AREA)
  • Packaging Frangible Articles (AREA)
  • Buffer Packaging (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Description

本発明はガラス板積層体に係り、特に複数枚のガラス板を、合紙を介して積層したガラス板積層体に関する。   The present invention relates to a glass plate laminate, and more particularly to a glass plate laminate in which a plurality of glass plates are laminated via interleaving paper.

ガラス板であって、建築用ガラス板、自動車用ガラス板、並びにプラズマディスプレイ用ガラス基板及び液晶用ガラス基板等のＦＰＤ（Flat Panel Display）用ガラス基板は、保管中や搬送中に表面に疵や汚染が付き、製品欠陥となり易い。特に、液晶ディスプレイ用に使用される無アルカリガラス基板のように、その表面に電気回路を組み込むガラス基板として用いる場合には、その表面にわずかな疵や汚染があっても断線やパターニング不良が発生する。よって、このようなガラス基板には、きわめて高い表面特性が要求される。   Glass plates for FPD (Flat Panel Display) such as architectural glass plates, automotive glass plates, glass substrates for plasma displays and liquid crystal glass substrates are not covered on the surface during storage or transportation. Contaminated and prone to product defects. In particular, when used as a glass substrate that incorporates an electrical circuit on its surface, such as a non-alkali glass substrate used for liquid crystal displays, disconnection and patterning defects may occur even if there is slight wrinkles or contamination on the surface. To do. Therefore, such a glass substrate is required to have extremely high surface characteristics.

ガラス板の表面の疵は、ガラス板を積層して保管や搬送する際に、隣接するガラス板との間で擦れが生じることによって発生する場合が多い。また、ガラス板の表面の汚染は、搬送雰囲気中の有機物（汚染物質）がガラス板の表面に付着することによって発生する場合が多い。この有機物は、水洗のみではガラス板の表面から除去することは困難である。また、この有機物は、例えば酸やアルカリを用いて洗浄する必要がある。しかしながら、このような洗浄は、洗浄時の作業環境が悪化するとともに洗浄及び廃液処理コストも増大する。また、このような洗浄を行っても有機物をガラス板の表面から完全に除去することは困難である。   The wrinkles on the surface of a glass plate are often generated by rubbing between adjacent glass plates when the glass plates are stacked and stored or transported. Moreover, the contamination of the surface of the glass plate often occurs when organic substances (contaminants) in the transport atmosphere adhere to the surface of the glass plate. This organic matter is difficult to remove from the surface of the glass plate only by washing with water. Moreover, this organic substance needs to be washed using, for example, an acid or an alkali. However, such cleaning deteriorates the working environment during cleaning and increases cleaning and waste liquid treatment costs. Moreover, even if such washing is performed, it is difficult to completely remove the organic matter from the surface of the glass plate.

そこで、ガラス板の保管中や搬送中の疵や汚染を防止する方法として、積層するガラス板とガラス板との間に紙を介在させて隣接するガラス板の表面同士を分離する、いわゆる合紙を介装したガラス板積層体が、特許文献１、２等に開示されている。   Therefore, as a method for preventing wrinkles and contamination during storage and transportation of glass plates, so-called slip sheets that separate the surfaces of adjacent glass plates by interposing paper between the glass plates to be laminated. The glass plate laminated body which interposes is disclosed by patent document 1, 2 grade | etc.,.

特許文献１の合紙は、剛性の強い合紙を提供するためにガーレ剛度を規定した提案である。また、特許文献２の合紙は、紙ヤケの発生及び紙粉の発生を抑えること、紙破れを抑えること、及び作業性を向上することを目的として、平均繊維長等を規定した提案である。   The slip sheet of Patent Document 1 is a proposal that defines the Gurley stiffness in order to provide a stiff slip sheet. In addition, the interleaving paper of Patent Document 2 is a proposal that defines an average fiber length and the like for the purpose of suppressing the occurrence of paper burn and paper dust, suppressing paper breakage, and improving workability. .

合紙が介在されたガラス板積層体は、箱又はパレットに梱包されてガラス板メーカーからガラス板の加工及び組立等を行うガラス板使用メーカーに搬送される。そして、ガラス板は、ガラス板使用メーカーでこの箱又はパレットから、特許文献３等に開示された取出装置によって１枚ずつ取り出される。この際、取出装置のガラス把持部によってガラス板を吸着把持して取り出し、次に合紙把持部によって合紙を取り出すという動作を繰り返し行うことになる。合紙を取り出す際には、ガラス板の上辺部からはみ出した合紙の上縁部分を吸着やチャッキング等の合紙把持部で把持して取り出す場合が多い。   The glass plate laminate with interleaving paper is packed in a box or pallet and conveyed from the glass plate manufacturer to a glass plate using manufacturer that processes and assembles the glass plate. And a glass plate is taken out one by one by the taking-out apparatus indicated by patent documents 3 grade from this box or pallet by a glass plate use manufacturer. At this time, the operation of repeatedly picking up and taking out the glass plate by the glass holding portion of the take-out device and then taking out the slip sheet by the slip-sheet holding portion is repeated. When taking out the interleaving paper, the upper edge portion of the interleaving paper that protrudes from the upper side of the glass plate is often grasped and taken out by an interleaving paper gripping portion such as suction or chucking.

ＷＯ２００９／００８４１３号公報WO2009 / 008413 特開２００５−２４８４０９号公報JP 2005-248409 A 特開２００６−１７６２３２号公報JP 2006-176232 A

しかしながら、合紙の剛性が弱い場合には、ガラス板の辺部からはみ出した縁部分の合紙が垂れ下がり、その垂れ下がった合紙を合紙把持部が良好に把持できない場合がある。合紙把持部は、ロボットによって吸着位置が予めティーチングされており、その吸着位置に向けて移動される。よって、吸着位置に合紙が存在しない場合、すなわち、合紙が垂れ下がっている場合には、合紙把持部によって合紙を良好に把持できない。   However, if the rigidity of the slip sheet is weak, the slip sheet at the edge portion protruding from the side portion of the glass plate may hang down, and the slip sheet may not be satisfactorily gripped by the slip sheet. The suction position of the slip sheet gripping portion is taught in advance by a robot and is moved toward the suction position. Therefore, when there is no slip sheet at the suction position, that is, when the slip sheet hangs down, the slip sheet cannot be satisfactorily gripped by the slip sheet gripping portion.

ガラス板の積層形態としては、ガラス板を斜めに立てた状態で箱又はパレットに積層する縦積の形態と、平らにして箱又はパレットに積層する平積の形態とがある。縦積の場合には、ガラス板の上辺部からはみ出した合紙の上縁部分（合紙出代部分ともいう）が背面側に垂れ下がり、この合紙を取り出す際に合紙把持部が合紙を良好に把持できない場合がある。   As a lamination | stacking form of a glass plate, there exists a vertical product form which laminates | stacks on a box or a pallet in the state which stood the glass plate upright, and a flat product form which makes it flat and laminate | stacks on a box or a pallet. In the case of vertical stacking, the upper edge of the slip sheet that protrudes from the upper edge of the glass plate (also referred to as the slip sheet margin) hangs down to the back side, and the slip sheet gripping part is used to remove the slip sheet. May not be gripped well.

特に、ＦＰＤ用ガラス基板のサイズは大型化傾向にあり、これに伴い合紙もＦＰＤ用ガラス基板の大きさと同程度の大きさとなっている。このことから、例えば第６世代のＦＰＤ用ガラス基板の梱包に使用される合紙の大きさは、１６００ｍｍ×１９００ｍｍ程度の大きさになる。このように合紙サイズが大きくなると、合紙の把持ミスによって、合紙を取り出すことができないトラブルの発生頻度が高くなるという問題があった。   In particular, the size of the glass substrate for FPD tends to be increased, and accordingly, the slip sheet is about the same size as the glass substrate for FPD. From this, for example, the size of the slip sheet used for packing the glass substrate for 6th generation FPD is about 1600 mm × 1900 mm. When the slip sheet size is increased in this way, there is a problem that the frequency of occurrence of trouble that the slip sheet cannot be taken out due to a gripping error of the slip sheet increases.

本発明は、このような事情に鑑みてなされたもので、ガラス板の上辺部からはみ出した合紙の上縁部分を合紙把持部によって確実に把持し、箱又はパレットから合紙を良好に取り出すことができるガラス板積層体を提供することを目的とする。   The present invention has been made in view of such circumstances. The upper edge portion of the slip sheet protruding from the upper side portion of the glass plate is securely gripped by the slip sheet gripping portion, and the slip sheet is satisfactorily removed from the box or pallet. It aims at providing the glass plate laminated body which can be taken out.

本発明は、前記目的を達成するために、複数枚のガラス板が合紙を介して積層されるとともに、前記ガラス板の上辺部から前記合紙の上縁部分が所定量はみ出すように積層されたガラス板積層体において、前記合紙は、該合紙の筋目が縦方向に向いた状態で前記ガラス板とガラス板との間に介在されてなり、前記合紙の前記上縁部分のはみ出し量が、５０ｍｍ以上２００ｍｍ以下であり、前記合紙の前記筋目の方向のガーレ剛度が０．３ｍＮ以上であり、前記筋目の方向に直交する方向のガーレ剛度が０．３ｍＮ未満であり、前記合紙の筋目とは、前記合紙の抄紙工程において前記合紙に入る線状の模様であることを特徴とするガラス板積層体を提供する。


In order to achieve the above object, the present invention is configured such that a plurality of glass plates are laminated via a slip sheet, and the upper edge portion of the slip sheet protrudes from a predetermined amount from the upper side portion of the glass plate. In the laminated glass plate, the slip sheet is interposed between the glass plate and the glass plate in a state where the line of the slip sheet is oriented in the vertical direction, and the protrusion of the upper edge portion of the slip sheet amount is at least 50mm 200mm or less, the direction of the Gurley stiffness of the streaks of the interleaving paper is not less than 0.3 mN, Ri der than the direction of the Gurley stiffness is 0.3 mN orthogonal to the direction of the streaks, the The streaks of the interleaving paper provide a glass plate laminate characterized by being a linear pattern that enters the interleaving paper in the interleaf paper making process .


合紙は、紙の目に沿って線の模様、すなわち筋目が入った紙である。また、合紙は筋目の方向に剛性が強い性質を有している。すなわち、合紙は、筋目の方向に直交する方向を曲がり軸とした場合に、その曲がり軸の回りに湾曲し難い性質を有している。本発明は、このような合紙の特性に着目してなされたものであり、ガラス板とガラス板との間に、筋目を縦方向に向けた合紙を介在させてガラス板積層体を構成した。   The interleaf paper is a paper having a line pattern, that is, a streak along the paper eyes. In addition, the slip sheet has a property of having high rigidity in the direction of the streak. That is, the slip sheet has a property that it is difficult to bend around the bending axis when the direction orthogonal to the direction of the streak is taken as the bending axis. The present invention has been made by paying attention to the characteristics of such slip sheets, and constitutes a glass plate laminate by interposing a slip sheet in the vertical direction between the glass plates and the glass plates. did.

これにより、ガラス板の上辺部からはみ出した合紙の上縁部分は、その筋目が縦方向に向いているため、垂れ下がる（筋目の方向に直交する方向を曲がり軸として湾曲する）ことはない。よって、本発明は、合紙の上縁部分を合紙把持部によって確実に把持することができるので、箱又はパレットから合紙を良好に取り出すことができる。   As a result, the upper edge portion of the slip sheet that protrudes from the upper side of the glass plate does not hang down (bends with the direction orthogonal to the direction of the curve as the bending axis) because the line is oriented in the vertical direction. Therefore, according to the present invention, the upper edge portion of the slip sheet can be reliably gripped by the slip sheet gripping portion, so that the slip sheet can be satisfactorily taken out from the box or the pallet.

本発明によれば、合紙の上縁部分のはみ出し量が５０ｍｍ以下であると、合紙把持部による把持面積が小さ過ぎてしまうことにより、はみ出し量は５０ｍｍ以上が好ましい。また、はみ出し量が２００ｍｍを超えると、はみ出した上縁部分の自重により上縁部分が垂れ下がる場合があるので、はみ出し量は２００ｍｍ以下が好ましい。   According to the present invention, when the amount of protrusion of the upper edge portion of the slip sheet is 50 mm or less, the grip amount by the slip sheet gripping portion is too small, and thus the amount of protrusion is preferably 50 mm or more. Further, if the amount of protrusion exceeds 200 mm, the upper edge portion may hang down due to the weight of the protruding upper edge portion, so that the amount of protrusion is preferably 200 mm or less.

また、本発明のガラス板積層体は、筋目の方向に直交する方向を曲がり軸とした場合の合紙の抵抗力（剛性度）を０．３ｍＮ以上と規定し、筋目の方向を曲がり軸とした場合の合紙の抵抗力を０．３ｍＮ未満に規定した。
The glass plate laminate of the present invention, the resistance of the slip sheet in the case where the axis bending a direction orthogonal to the direction of the muscle th to (stiffness) defined as above 0.3 mN, bend the direction of the streaks axis In this case, the resistance of the slip sheet is defined to be less than 0.3 mN.

合紙のＪＡＰＡＮ ＴＡＰＰＩ Ｎｏ４０に準拠したガーレ剛度（以下、ガーレ剛度という）が低い場合、すなわち、合紙の剛性が弱い場合には、合紙が垂れ下がることにより、その垂れ下がった部分を合紙把持部によって良好に把持できない場合がある。特に、縦積の場合、ガラス板を積層する際に、合紙の剛性が弱いと、ガラス板の上辺部からはみ出した合紙の上縁部分が垂れ下がり、合紙を取り出す際に合紙把持部によって良好に把持できない場合がある。   When the Gurley stiffness (hereinafter referred to as Gurley stiffness) conforming to JAPAN TAPPI No. 40 of the slip sheet is low, that is, when the slip sheet has low rigidity, the slipped portion hangs down and the drooped portion is removed. Depending on the case, it may not be possible to grip well. In particular, in the case of vertical stacking, if the rigidity of the slip sheet is weak when laminating the glass plates, the upper edge portion of the slip sheet that protrudes from the upper side of the glass plate hangs down, and when the slip sheet is taken out, the slip sheet gripping part Depending on the case, it may not be possible to grip well.

このような合紙を取り出す際のハンドリングで発生する把持エラーを防止するためには、合紙の筋目の方向のガーレ剛度が０．３ｍＮ以上であることが好ましいことを、本願発明者は実験により確認した。よって、合紙の筋目の方向のガーレ剛度を０．３ｍＮ以上とすることにより、合紙を取り出す際の把持エラーを防止することができる。０．３ｍＮ以上のガーレ剛度は、合紙の筋目の方向にのみあればよく、筋目の方向に直交する方向においては不要である。   In order to prevent such a gripping error that occurs during handling when taking out the interleaving paper, it is preferable that the Gurley stiffness in the direction of the interleaving line of the interleaving paper is preferably 0.3 mN or more. confirmed. Therefore, by setting the Gurley stiffness in the direction of the interleaving line to be 0.3 mN or more, it is possible to prevent a gripping error when taking out the interleaving paper. A Gurley stiffness of 0.3 mN or more is only required in the direction of the streak of the slip sheet, and is not necessary in the direction orthogonal to the direction of the streak.

本発明によれば、ガラス板とガラス板との間に、筋目を縦方向に向けた合紙を介在させてガラス板積層体を構成したので、ガラス板の上辺部からはみ出している合紙の上縁部分は垂れ下がらない。よって、合紙の上縁部分は、合紙把持部によって確実に把持されるので、箱又はパレットから合紙を良好に取り出すことができる。   According to the present invention, since the glass sheet laminate is configured by interposing a slip sheet in the vertical direction between the glass sheet and the glass sheet, the slip of the slip sheet protruding from the upper side of the glass sheet. The upper edge does not sag. Therefore, since the upper edge part of the slip sheet is securely gripped by the slip sheet gripping portion, the slip sheet can be satisfactorily taken out from the box or pallet.

本発明の実施の形態のガラス板積層体が梱包されたガラス板梱包体の斜視図The perspective view of the glass plate package in which the glass plate laminated body of embodiment of this invention was packed 図１に示したガラス板積層体の要部拡大斜視図The principal part expansion perspective view of the glass plate laminated body shown in FIG.

以下、添付図面に従って本発明に係るガラス板積層体の好ましい実施の形態について詳説する。   Hereinafter, preferred embodiments of a glass plate laminate according to the present invention will be described in detail with reference to the accompanying drawings.

図１には、矩形状の複数枚のガラス板Ｇが矩形状の合紙１０、１０…を介して縦置きに積層された実施の形態のガラス板積層体１２が示されている。また、このガラス板積層体１２がガラス板梱包用パレット１４に梱包された状態が示されている。   FIG. 1 shows a glass plate laminate 12 according to an embodiment in which a plurality of rectangular glass plates G are vertically stacked via rectangular interleaving papers 10, 10. Moreover, the state by which this glass plate laminated body 12 was packed by the pallet 14 for glass plate packing is shown.

同図に示すパレット１４は、側面視楔形状の基台１６と、この基台１６と一体的に設けられた傾斜台１８とから構成され、側面視において略Ｌ字状に構成されている。基台１６の傾斜した上面１６Ａと傾斜台１８の傾斜面１８Ａとのなす角度θ１は、約９０°である。基台１６の上面１６Ａにガラス板Ｇの下縁部が載置されるとともに、ガラス板Ｇの面が傾斜台１８の傾斜面１８Ａに傾斜して立て掛けられ、ガラス板Ｇとガラス板Ｇとの間に合紙１０が介装される。傾斜台１８の傾斜面１８Ａの傾斜角度θ２は、積層されたガラス板Ｇを安定して積載、保管、及び搬送できればよく、水平に対して８５度以下であればよい。本実施の形態では、傾斜台１８の傾斜角度θ２は約７２度に設定されている。 The pallet 14 shown in the figure is composed of a wedge-shaped base 16 in side view and an inclined base 18 provided integrally with the base 16, and is substantially L-shaped in side view. An angle θ 1 formed by the inclined upper surface 16A of the base 16 and the inclined surface 18A of the inclined base 18 is about 90 °. The lower edge portion of the glass plate G is placed on the upper surface 16A of the base 16 and the surface of the glass plate G is inclined to the inclined surface 18A of the inclined table 18 so that the glass plate G and the glass plate G A slip sheet 10 is interposed therebetween. The inclination angle theta 2 of the inclined surface 18A of the ramps 18, loading the laminated glass sheet G stably, storage, and as long transport, it is sufficient to 85 degrees to the horizontal. In the present embodiment, the tilt angle θ 2 of the tilt table 18 is set to about 72 degrees.

合紙１０は、ガラス板Ｇを保護するために、ガラス板Ｇよりも大きいサイズの紙である。したがって、合紙１０の一部は、ガラス板Ｇからはみ出ることになる。この合紙１０の、はみ出た部分のうちガラス板Ｇの上辺部からはみ出した細長の上縁部分１０ａが、図２に示すアンパッカーの吸着パッド（合紙把持部）２０に吸着把持されて、合紙１０がパレット１４から取り出される。   In order to protect the glass plate G, the interleaf paper 10 is a paper having a size larger than that of the glass plate G. Accordingly, a part of the interleaf paper 10 protrudes from the glass plate G. Of the protruding portion of the slip sheet 10, the elongated upper edge portion 10a that protrudes from the upper side of the glass plate G is sucked and gripped by the suction pad (slip sheet gripping portion) 20 of the unpacker shown in FIG. The slip sheet 10 is taken out from the pallet 14.

なお、パレット１４のようにガラス板Ｇを縦積にする場合、ガラス板Ｇの下辺部から合紙１０がはみ出すと、ガラス板Ｇを隙間なく積載できずに梱包や搬送時にガラス板Ｇが損傷する虞がある。よって、合紙１０は、ガラス板Ｇの上辺部と左右の辺部からのみ、はみ出ることが好ましい。また、図２では１個の吸着パッド２０を示しているが、この吸着パッド２０は、上縁部分１０ａの水平方向に沿って複数個並列配置されて、不図示のロボットによって動作されるものである。また、符号２２は、ガラス板Ｇを吸着保持する吸着パッドであり、この吸着パッド２２は、ガラス板Ｇの面内において複数個配置されて、不図示のロボットによって動作されるものである。   In addition, when the glass plate G is vertically stacked like the pallet 14, if the slip sheet 10 protrudes from the lower side of the glass plate G, the glass plate G cannot be stacked without any gap, and the glass plate G is damaged during packaging and transportation. There is a risk of doing. Therefore, it is preferable that the slip sheet 10 protrudes only from the upper side and the left and right sides of the glass plate G. In addition, FIG. 2 shows one suction pad 20, but a plurality of the suction pads 20 are arranged in parallel along the horizontal direction of the upper edge portion 10a and are operated by a robot (not shown). is there. Reference numeral 22 denotes a suction pad for sucking and holding the glass plate G. A plurality of suction pads 22 are arranged in the plane of the glass plate G and operated by a robot (not shown).

ところで、合紙１０は、製紙メーカーで製造されたロール紙から所定のサイズに裁断されたものである。また、この合紙１０には、製紙メーカーでの製造工程（抄紙工程）において、紙の長さ方向（紙の目）に沿って線の模様、すなわち、筋目１０ｂ、１０ｂ…が多数本入っている。紙は、筋目１０ｂの方向に剛性が強い性質を有している。すなわち、紙は、筋目１０ｂの方向に直交する方向を曲がり軸とした場合に、その曲がり軸の回りに湾曲し難い性質を有している。   By the way, the interleaf paper 10 is cut into a predetermined size from a roll paper manufactured by a paper manufacturer. Further, the interleaf paper 10 includes a large number of line patterns, that is, lines 10b, 10b,... Along the length direction of the paper (paper eyes) in the manufacturing process (paper making process) at the paper manufacturer. Yes. The paper has a property of having high rigidity in the direction of the stripe 10b. That is, paper has a property that it is difficult to bend around the bending axis when the direction orthogonal to the direction of the streak 10b is taken as the bending axis.

実施の形態のガラス板積層体１２は、このような紙の特性に着目してなされたものであり、筋目１０ｂを縦方向に向けた合紙１０を、ガラス板Ｇとガラス板Ｇとの間に介在させて構成している。   The glass plate laminate 12 of the embodiment is made by paying attention to such a characteristic of paper, and the interleaf paper 10 with the stripes 10b oriented in the vertical direction is interposed between the glass plate G and the glass plate G. It is configured to intervene.

これにより、ガラス板Ｇの上辺部からはみ出した合紙１０の上縁部分１０ａの筋目１０ｂは、縦方向に向いている。このため、上縁部分１０ａの剛性は強く、上縁部分１０ａが背面側に垂れ下がることはない。すなわち、筋目１０ｂの方向に直交する方向を曲がり軸として、上縁部分１０ａが湾曲することはない。   Thereby, the line 10b of the upper edge portion 10a of the slip sheet 10 that protrudes from the upper side portion of the glass plate G faces the vertical direction. For this reason, the rigidity of the upper edge part 10a is strong, and the upper edge part 10a does not hang down to the back side. That is, the upper edge portion 10a is not curved with the direction perpendicular to the direction of the streak 10b as the bending axis.

よって、実施の形態のガラス板積層体１２によれば、吸着位置が予め記憶されている吸着パッド２０によって、合紙１０の上縁部分１０ａが確実に把持されるので、パレット１４から合紙１０が良好に取り出される。なお、図１、図２では、筋目１０ｂを分かり易く説明するために、筋目１０ｂを誇張して示している。すなわち、筋目１０ｂの幅、間隔は図１、図２に示した形態に限定されるものではない。なお、全ての合紙１０の筋目が縦方向に向いていることが好ましいが、合紙全数の少なくとも９０％以上の合紙１０の筋目が縦方向を向いていることが好ましい。１０％未満の合紙１０の筋目が横方向を向いていても、その合紙１０は、筋目が縦方向に向いている合紙１０に支えられ、垂れ下がりが防止されるからである。   Therefore, according to the glass plate laminate 12 of the embodiment, the upper edge portion 10a of the slip sheet 10 is securely held by the suction pad 20 in which the suction position is stored in advance. Is taken out well. In FIG. 1 and FIG. 2, the streak 10b is exaggerated for easy understanding. That is, the width and interval of the streak 10b are not limited to the forms shown in FIGS. In addition, although it is preferable that the lines of all the interleaf sheets 10 are oriented in the vertical direction, it is preferable that the lines of the interleaf sheets 10 that are at least 90% or more of the total number of interleaf sheets are oriented in the vertical direction. This is because even if the lines of the interleaving paper 10 that are less than 10% are oriented in the horizontal direction, the interleaving paper 10 is supported by the interleaving paper 10 that is oriented in the vertical direction, and drooping is prevented.

一方で、合紙１０の上縁部分１０ａのはみ出し量ａは、５０ｍｍ以上２００ｍｍ以下であることが好ましい。   On the other hand, the protrusion amount a of the upper edge portion 10a of the interleaf paper 10 is preferably 50 mm or more and 200 mm or less.

合紙１０の上縁部分１０ａのはみ出し量ａが５０ｍｍ以下であると、吸着パッド２０による把持面積が小さ過ぎてしまうことにより、はみ出し量ａは５０ｍｍ以上が好ましい。また、はみ出し量ａが２００ｍｍを超えると、はみ出した上縁部分１０ａの自重により上縁部分１０ａが垂れ下がる場合があるので、はみ出し量ａは２００ｍｍ以下が好ましい。よって、上縁部分１０ａのはみ出し量ａを５０ｍｍ以上２００ｍｍ以下と規定することにより、吸着パッド２０による合紙１０の取り出しがより一層良好となる。   When the protruding amount a of the upper edge portion 10a of the interleaf paper 10 is 50 mm or less, the protruding area a is preferably 50 mm or more because the gripping area by the suction pad 20 is too small. Moreover, when the protrusion amount a exceeds 200 mm, the upper edge portion 10a may hang down due to the weight of the protruding upper edge portion 10a. Therefore, the protrusion amount a is preferably 200 mm or less. Therefore, by defining the protruding amount a of the upper edge portion 10a to be 50 mm or more and 200 mm or less, the interleaving paper 10 can be taken out by the suction pad 20 even better.

なお、はみ出し量ａの下限値（５０ｍｍ）は、前述の如く吸着パッド２０の大きさに依存するものである。ここで、合紙１０を安定して吸着保持するための吸着パッド２０のサイズは概ね決まっている。また、吸着パッドは、ロボットによって動作されることから、ロボットによる吸着パッド２０の移動軌跡にガラス板Ｇが存在しないことが要求される。このような観点から、はみ出し量ａの下限値は５０ｍｍであることが好ましい。また、はみ出し量ａの上限値（２００ｍｍ）は、上縁部分１０ａの垂れ下がりを防止する観点で設定しているが、その上限値を若干超えた場合でも、上縁部分１０ａに垂れ下がりは発生しない。この観点で言えば、上限値を大きくしてもよいが、大きくし過ぎると合紙１０に無駄が生じる。よって、上限値（２００ｍｍ）は、上縁部分１０ａの垂れ下がりを確実に防止する観点と、合紙１０を節約する観点とから設定されている。   Note that the lower limit (50 mm) of the protrusion amount a depends on the size of the suction pad 20 as described above. Here, the size of the suction pad 20 for stably sucking and holding the slip sheet 10 is generally determined. Further, since the suction pad is operated by the robot, it is required that the glass plate G does not exist on the movement locus of the suction pad 20 by the robot. From such a viewpoint, it is preferable that the lower limit value of the protrusion amount a is 50 mm. Moreover, although the upper limit (200 mm) of the protrusion amount a is set from the viewpoint of preventing the upper edge portion 10a from sagging, even if the upper limit value is slightly exceeded, no sagging occurs in the upper edge portion 10a. From this point of view, the upper limit value may be increased. However, if the upper limit value is increased too much, the slip sheet 10 is wasted. Therefore, the upper limit value (200 mm) is set from the viewpoint of reliably preventing the upper edge portion 10a from sagging and the viewpoint of saving the slip sheet 10.

ところで、パレット１４に積載されるガラス板Ｇ及び合紙１０の枚数は、例えば第６世代のガラス板の場合は３００枚以上、第７世代のガラス板の場合は２５０枚以上である。このように合紙１０は、１台のパレット１４に対して多数枚使用されるため、上限値を２００ｍｍに設定することは、合紙１０を節約する観点で重要である。   By the way, the number of glass plates G and interleaf paper 10 loaded on the pallet 14 is, for example, 300 or more in the case of the sixth generation glass plate and 250 or more in the case of the seventh generation glass plate. As described above, since a large number of slip sheets 10 are used for one pallet 14, setting the upper limit value to 200 mm is important from the viewpoint of saving the slip sheets 10.

そして更に、実施の形態のガラス板積層体１２によれば、合紙１０の筋目１０ｂの方向のガーレ剛度が０．３ｍＮ以上であり、筋目１０ｂの方向に直交する方向のガーレ剛度が０．３ｍＮ未満であることが好ましい。すなわち、筋目１０ｂの方向に直交する方向を曲がり軸とした場合の合紙１０の抵抗力（剛性度）を、０．３ｍＮ以上とすることが好ましい。また、筋目１０ｂの方向を曲がり軸とした場合の合紙１０の抵抗力を、０．３ｍＮ未満とすることが好ましい。   Further, according to the glass plate laminate 12 of the embodiment, the Gurley stiffness in the direction of the line 10b of the interleaf paper 10 is 0.3 mN or more, and the Gurley stiffness in the direction orthogonal to the direction of the line 10b is 0.3 mN. It is preferable that it is less than. That is, it is preferable that the resistance force (rigidity) of the slip sheet 10 when the direction orthogonal to the direction of the streak 10b is a bending axis is 0.3 mN or more. In addition, it is preferable that the resistance force of the slip sheet 10 when the direction of the line 10b is a bending axis is less than 0.3 mN.

合紙１０のガーレ剛度が低い場合、すなわち、合紙１０の剛性が弱い場合には、合紙１０が垂れ下がることにより、その垂れ下がった部分を吸着パッド２０によって良好に把持できない場合がある。特に、図１の如くガラス板Ｇを斜めに立てて積層した縦積の場合、ガラス板Ｇを積層する際に、合紙１０の剛性が弱いと、合紙１０の上縁部分１０ａが垂れ下がる場合がある。   If the Gurley stiffness of the slip sheet 10 is low, that is, if the stiffness of the slip sheet 10 is weak, the sagging paper 10 may hang down, and the sagging pad 20 may not be able to be gripped satisfactorily. In particular, in the case of a vertical product in which the glass plates G are stacked at an angle as shown in FIG. 1, the upper edge portion 10 a of the slip sheet 10 hangs down when the slip of the slip sheet 10 is weak when the glass plates G are stacked. There is.

このような合紙１０を取り出す際のハンドリングで発生する合紙把持エラーを防ぐためには、合紙１０の筋目１０ｂの方向のガーレ剛度を０．３ｍＮ以上とすることが好ましい。これにより、合紙１０を取り出す際に、ハンドリングで発生する合紙把持エラーを防止することができる。０．３ｍＮ以上のガーレ剛度は、合紙１０の筋目１０ｂの方向にのみあればよく、筋目１０ｂの方向に直交する方向においては不要である。   In order to prevent the slip sheet gripping error that occurs during handling when taking out the slip sheet 10, it is preferable that the Gurley stiffness in the direction of the line 10b of the slip sheet 10 is 0.3 mN or more. Thereby, when taking out the slip sheet 10, it is possible to prevent a slip sheet gripping error that occurs in handling. The Gurley stiffness of 0.3 mN or more is only required in the direction of the line 10b of the interleaf paper 10, and is not necessary in the direction orthogonal to the direction of the line 10b.

筋目１０ｂの方向に直交する方向のガーレ剛度を、０．３ｍＮ以上とすると、合紙１０全体に強度を持たせることになるので、合紙１０の製造コストがアップする。また、ガラス板Ｇの左右辺部からはみ出した合紙１０の両側部１０ｃは、筋目１０ｂの方向に直交する方向のガーレ剛度が０．３ｍＮ未満であるため、背面側に湾曲する場合がある。しかしながら、合紙１０の両側部１０ｃは、吸着パッド２０によって把持される部分ではないので、湾曲しても合紙１０の取り出しに影響を与えない。この観点から、筋目１０ｂの方向に直交する方向のガーレ剛度は０．３ｍＮ未満でよい。   If the Gurley stiffness in the direction orthogonal to the direction of the line 10b is 0.3 mN or more, the entire slip sheet 10 is given strength, so that the manufacturing cost of the slip sheet 10 increases. Moreover, since both sides 10c of the slip sheet 10 that protrude from the left and right sides of the glass plate G have a Gurley stiffness of less than 0.3 mN in a direction orthogonal to the direction of the streak 10b, they may bend to the back side. However, since the both side portions 10c of the slip sheet 10 are not gripped by the suction pad 20, even if the slip is curved, the take-out of the slip sheet 10 is not affected. From this viewpoint, the Gurley stiffness in the direction orthogonal to the direction of the streak 10b may be less than 0.3 mN.

実施の形態のガラス板積層体１２において、合紙１０のサイズや厚さは限定されないが、第６世代のＦＰＤ用ガラス基板（例えば１５００ｍｍ×１８５０ｍｍ）サイズに対応する合紙サイズ以上の場合、及び厚さが０．０１ｍｍ〜０．２ｍｍの場合に特に好適である。   In the glass plate laminate 12 of the embodiment, the size and thickness of the slip sheet 10 are not limited, but when the slip sheet size is equal to or larger than the size of the glass substrate for sixth generation FPD (for example, 1500 mm × 1850 mm), and It is particularly suitable when the thickness is 0.01 mm to 0.2 mm.

合紙１０の原料は古紙、バージンパルプ、これらの混合物であってもよい。更にセルロース等を含有している原料を用いてもよい。   The raw material of the interleaf paper 10 may be waste paper, virgin pulp, or a mixture thereof. Furthermore, a raw material containing cellulose or the like may be used.

また、実施の形態において合紙１０に含有される異物の大きさは２００μｍ以下であることが好ましい。異物の大きさが２００μｍ以下であるとガラス板Ｇの保管中、及び搬送中に発生しやすいガラス板Ｇの疵が発生する虞がない。なお、閾値となる異物の大きさは、合紙１０の厚みやガラス板Ｇの材質によって異なるので、異物の大きさは対象となるガラス板Ｇの材質や合紙１０の厚みによって、都度決めることが必要である。   In the embodiment, the size of the foreign matter contained in the slip sheet 10 is preferably 200 μm or less. If the size of the foreign material is 200 μm or less, there is no possibility of wrinkling of the glass plate G that is likely to occur during storage and conveyance of the glass plate G. In addition, since the size of the foreign substance serving as the threshold varies depending on the thickness of the slip sheet 10 and the material of the glass plate G, the size of the foreign matter is determined each time depending on the material of the target glass plate G and the thickness of the slip sheet 10. is necessary.

なお、本実施の形態において、合紙１０の厚みは０．０６〜０．１ｍｍであり、ガラス板Ｇの厚みは０．２〜０．７ｍｍであり、ＦＰＤ用ガラス基板（商品名ＡＮ１００、旭硝子株式会社製）を用いた。   In this embodiment, the thickness of the interleaf paper 10 is 0.06 to 0.1 mm, the thickness of the glass plate G is 0.2 to 0.7 mm, and a glass substrate for FPD (trade name AN100, Asahi Glass). Used).

Ｇ…ガラス板、１０…合紙、１０ａ…上縁部分、１０ｂ…筋目、１２…ガラス板積層体、１４…ガラス板梱包用パレット、１６…基台、１８…傾斜台、２０…吸着パッド、２２…吸着パッド   G: Glass plate, 10: Interleaving paper, 10a: Upper edge portion, 10b ... Streaks, 12 ... Glass plate laminate, 14 ... Pallet for packing glass plate, 16 ... Base, 18 ... Inclined base, 20 ... Adsorption pad, 22 ... Suction pad

Claims (1)

複数枚のガラス板が合紙を介して積層されるとともに、前記ガラス板の上辺部から前記合紙の上縁部分が所定量はみ出すように積層されたガラス板積層体において、
前記合紙は、該合紙の筋目が縦方向に向いた状態で前記ガラス板とガラス板との間に介在されてなり、
前記合紙の前記上縁部分のはみ出し量が、５０ｍｍ以上２００ｍｍ以下であり、
前記合紙の前記筋目の方向のガーレ剛度が０．３ｍＮ以上であり、前記筋目の方向に直交する方向のガーレ剛度が０．３ｍＮ未満であり、
前記合紙の筋目とは、前記合紙の抄紙工程において前記合紙に入る線状の模様であることを特徴とするガラス板積層体。 In a glass plate laminate in which a plurality of glass plates are laminated via interleaving paper and laminated such that a predetermined amount of the upper edge portion of the interleaving paper protrudes from the upper side of the glass plate,
The slip sheet is interposed between the glass plate and the glass plate in a state in which the lines of the slip sheet are oriented in the vertical direction,
The amount of protrusion of the upper edge portion of the slip sheet is 50 mm or more and 200 mm or less,
The direction of the Gurley stiffness of the streaks of the interleaving paper is not less than 0.3 mN, the direction of the Gurley stiffness perpendicular to the direction of the streaks is Ri der less than 0.3 mN,
The line of the interleaf is a linear pattern that enters the interleaf in the interleaf paper making process .
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CN102114938B (en) 2015-05-27
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