KR101423413B1 - Glass plate package body and method for packaging glass plate stack - Google Patents

Abstract

The present invention relates to a glass plate laminate in which a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is packed with a packing container, wherein the thickness of the glass plate is 0.7 mm or less, , Wherein the glass plate laminate has a thickness variation of 10% or less.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for packing a glass plate gluing body and a glass plate laminate,

TECHNICAL FIELD The present invention relates to a method for packing a glass plate gluing body and a glass plate laminate in which a very thin FPD (Flat Panel Display) glass substrate such as a glass substrate for a liquid crystal display is stacked and packed.

A glass substrate for an FPD such as a glass substrate for a liquid crystal display and a glass substrate for a plasma display tends to be damaged due to damage or contamination on the surface during storage or transportation. Particularly, when used as a glass substrate for incorporating an electric circuit on its surface, such as a non-alkali glass substrate used for a liquid crystal display, even if there is some damage or contamination on its surface, disconnection or patterning failure occurs. Therefore, such a glass substrate requires extremely high surface properties.

Therefore, as a method of preventing damage or contamination during storage or transportation of such a glass substrate, there has been proposed a method in which a glass plate laminate having so-called laminate interposed therebetween is disposed between the glass substrate to be laminated and the glass substrate surfaces adjacent to each other with paper interposed therebetween , And Patent Document 1.

The laminates also have a function as a buffering material for preventing breakage of the glass substrate during storage or transportation of the glass substrate. Patent Literatures 2 and 3 disclose a laminate for preventing such breakage cut-out.

Patent Document 2 discloses a laminated sheet having a thickness of 30 to 400 μm and a density of 0.70 g / cm ³ or less. In Patent Document 1, it is preferred that the thickness of the lamination 60 to 150㎛, density is described that is less than 0.5g / cm ³ is preferred. Also, in Patent Document 2, a glass plate having a size of 680 mm x 880 mm x 0.7 mm is exemplified as the glass plate to which the laminate is applied. That is, a glass plate laminate to which the laminate is applied is described on a glass plate having a thickness of 0.7 mm.

On the other hand, Patent Document 3 discloses a laminated sheet having a thickness of 40 to 400 탆 and a density of 0.5 to 1 g / cm ³ or less. Further, Patent Document 3, the thickness of the lamination 50 to 250㎛ and more preferably, to a range of 60 to 95㎛ more preferred, density is described that preferably in the 0.6 to 0.9g / cm ^3.

Japanese Patent Laid-Open No. 2008-143542 Japanese Patent Laid-Open No. 2006-44674 Japanese Patent Application Laid-Open No. 2008-296938

In recent years, a glass substrate for a liquid crystal display has been manufactured to have a thickness of 0.7 mm or less. However, when a glass substrate having a size of 1800 mm x 1500 mm or more is packed through a laminate of Patent Documents 2 and 3, There has been a problem in that the same effects as those of Patent Documents 2 and 3 can not be obtained.

That is, the laminate of Patent Documents 2 and 3 is effective as a laminate for a glass substrate having a size of less than 1800 mm x 1500 mm. However, when the laminate for a glass substrate having a size of 1800 mm x 1500 mm or more, It is not possible to obtain a sufficient effect for crack cutting only by specifying the thickness and density of the cracks.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to provide a method of packing a glass plate laminate and a glass laminate capable of reducing the breaking cut-off of a glass plate having a thickness of 0.7 mm or less.

In order to attain the above object, the present invention is a glass plate warp body in which a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is packed with a packing container, wherein the thickness of the glass plate is 0.7 mm or less, Is a vertically stacked glass sheet laminate in which the glass sheet is tilted with respect to the vertical direction, and the glass sheet laminate has a thickness variation of 10% or less.

In order to attain the above object, the present invention provides a glass plate laminate in which a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is packed with a packing container, wherein the thickness of the glass plate is 0.7 mm or less, Is a lateral laminated glass sheet laminate in which the glass sheet is laminated horizontally, and the glass sheet laminate has a variation in thickness of 3% or less.

According to the present invention, a sheet for a glass plate having a thickness of 0.7 mm or less not only defines the thickness and density of the sheet as a buffering requirement but also has a variation in thickness of the glass plate laminate of 10% And the like.

The deviation of the thickness means a deviation of the thickness of the glass plate laminate measured at several peripheral portions of the glass plate laminate, and the maximum value thereof is obtained, the ideal thickness is subtracted from the maximum value thereof, . The ideal thickness is a thickness obtained by adding the value obtained by multiplying the manufacturer's notarized value of the glass plate thickness by the number of laminated glass sheets and the value obtained by multiplying the manufacturer's notarized value of the sheet thickness by the number of laminated sheets. The large deviation of the thickness means that wrinkles are generated in the sheet of the glass sheet laminate or the distance between the adjacent glass sheets is distant from each other. Particularly, in the case of a vertically stacked glass sheet, the glass sheet tilts at an angle, and therefore the lower edge portion of the glass sheet tends to be opened to the lower edge portion of the adjacent glass sheet. Therefore, in the case of the vertically stacked glass sheet wrapping, the deviation of the thickness of the glass sheet stacked body inevitably becomes larger than that of the horizontally laminated glass sheet warper.

It has been experimentally confirmed by experiments that a glass plate having a thickness of 0.7 mm or less, particularly a glass plate having a thickness of 0.3 mm or less, has a large deviation in thickness and a glass plate is considerably broken during storage or transportation, It has been experimentally found that by setting the deviation to be 10% or less, the above cracked cutout is greatly reduced. Further, the measurement point is the periphery of the glass sheet laminate in which cracked cutout is likely to occur. That is, even if the thickness variation is more than 10% at the center of the laminated glass sheet, the central portion of the laminated glass sheet is pressed by the pressing member during transportation, so there is no problem.

On the other hand, in the case of laminating the packaging containers filled with the glass plate, there is little deviation in the lateral direction of the packaging plates. However, depending on the positioning accuracy of the packaging containers, There is a case in which a deviation of several millimeters in the horizontal direction occurs.

In this case, since the relative positions are shifted relative to a plurality of glass plates before and after the operation is interrupted, there is little influence on cracking. However, when the thickness variation of the glass sheet laminate is large, one or two glass sheets may be displaced in the lateral direction. This is due to the operation of dropping the glass plate onto the bottom plate of the glass plate in the laminating operation of the glass plate by the robot, and the deviation of the glass plate in the lateral direction is 10 mm or less, preferably 4 mm or less, more preferably 1 mm or less .

The deviation of the glass plate in the transverse direction can be measured simply by setting a standard such as the right side or the left side of the glass plate thermal insulator, and using normal or the like. If there is any structure and can not be measured, use a mirror to measure it.

Further, according to the present invention, it is preferable that the thickness of the sheet is 50 to 100 탆 and the density is 0.80 g / cm ³ or less.

Since the sheet functions as a buffer material, its thickness is preferably 50 to 100 mu m. That is, if the thickness is less than 50 mu m, there is a fear that the thickness is thin and it can not function as a cushioning material. On the other hand, if the thickness exceeds 100 탆, the sheet becomes too thick to cause wrinkles on the sheet, and it becomes difficult to suppress the variation in thickness described above to 10% or less. Further, the thickness of the sheet is more preferably 70 to 80 占 퐉.

Further, since the sheet functions as a buffer material, its density is preferably 0.80 g / cm ³ or less. If the density exceeds 0.80 g / cm ³ , the sheet is excessively hard and may not function as a buffer material for a glass plate having a thickness of 0.3 mm or less.

Further, according to the present invention, in the case where the self-weight of the glass sheet is a laminated vertical glass sheet in which the variation in the thickness of the glass sheet laminate is not contributed, the variation in thickness is defined as 10% or less, In the case of a lateral laminated glass sheet laminate which contributes to a reduction in deviation, the variation in thickness is defined as 3% or less.

Further, the present invention is particularly effective for a glass plate having a size of 1800 mm x 1500 mm or more.

Further, the present invention is particularly effective for a glass plate having a thickness of 0.3 mm or less.

Further, the glass plate of the present invention is preferably a glass substrate for a flat panel display.

As the sheet, a resin film, a resin sheet and a foamed resin sheet can be mentioned in addition to the laminated sheet. Alternatively, at least two of these sheets may be laminated to form an integrated sheet. Further, the glass plate means a glass plate on which a film is already attached.

Further, the present invention is a method for packing a glass plate laminate in which a plurality of glass plates stacked with a sheet interposed therebetween is wrapped by a wrapping container, wherein the glass plate has a thickness of 0.7 mm or less, To 100 탆, a density of 0.80 g / cm ³ or less, and a deviation of the thickness of the glass plate laminate of 10% or less.

According to the method for packing a glass plate cloth and a glass plate laminate of the present invention, it is possible to reduce the breaking cut-off of a glass plate having a thickness of 0.7 mm or less.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a vertically stacked glass plate panel according to an embodiment of the present invention. Fig.
Fig. 2 is a perspective view showing the entire structure of the vertical wrapping container shown in Fig. 1. Fig.
3 is a side view of a vertically stacked glass sheet package in which a glass sheet laminate is packed.
Fig. 4 is a schematic side view of a glass plate goniometer in which adjacent lower glass plates are spaced apart from each other.
5 is a side view of a lateral laminated glass sheet warper according to an embodiment of the present invention.
6 is a graph showing the relationship between the deviation of the thickness of the laminated glass sheet and the defective incidence in the vertically stacked glass sheet laminate.
Fig. 7 is a graph showing the relationship between the deviation of the thickness of the glass plate laminate and the defective incidence in the lateral laminated glass plate warper. Fig.
Fig. 8 is an explanatory view showing a portion where the thickness of the laminated glass sheet in the vertical laminated glass sheet laminate is measured. Fig.
Fig. 9 is an explanatory view showing a portion where the thickness of the glass plate laminate in the lateral laminated glass plate laminate is measured. Fig.
Fig. 10 is an explanatory diagram showing the angle when the glass plate is mounted.

Best Mode for Carrying Out the Invention Hereinafter, a preferred embodiment of a method for packing a glass plate laminate and a glass laminate according to the present invention will be described in detail with reference to the accompanying drawings.

1, there is shown a vertically stacked glass sheet laminate 12 in which a plurality of rectangular glass plates G are stacked in an oblique arrangement via rectangular sheets 10, 10... Further, a state in which the glass plate laminate 12 is packed in the packaging container 14 of the embodiment is shown.

The glass plate (G) is used for an FPD glass substrate for a liquid crystal display or the like, and its thickness is 0.7 mm or less. In the embodiment, the laminated sheet 10 is exemplified as a sheet interposed between the glass sheet G and the glass sheet G, but the present invention is not limited thereto. For example, the resin film, the resin sheet, and the foamed resin sheet can be applied instead of the laminate 10 as long as they satisfy the buffer requirement (cushioning property) and the deviation of the thickness of the laminated glass sheet described later. Further, at least two of these sheets may be laminated to form an integrated sheet. The glass plate (G) includes a glass plate (G) on which a film is previously attached.

2 is a perspective view showing the overall configuration of the packaging container 14, and the lower lateral pressing members 15A and 15B and the upper lateral pressing members 17A and 17B are shown. Fig. 3 is a side view of the glass plate package in which the packaging container 14 is packed with the glass plate laminate 12. Fig. 3 shows a state in which the side portion of the glass plate laminated body 12 is pressed by the lower lateral pressing member 15B and the upper lateral pressing member 17B and the glass plate laminated body 12 is packed in the packaging container 14 Are shown. 3 shows the packing form of the glass plate laminate 12, and FIG. 1 shows the take-out form of the glass plate G and the laminated paper 10. That is, when the glass plate G and the laminated paper 10 are taken out, the detachable unit portion of the lower lateral pressing members 15A and 15B and the upper lateral pressing members 17A and 17B shown in Fig. .

As shown in Fig. 2, the packaging container 14 has a pedestal 18 on which a flat mounting surface 16 is formed on an upper surface. In addition, provided with a packing container 14 is equipped with a flat bottom surface 20, a lower edge of the glass sheet to be loaded, with the installed obliquely at an angle (θ ₁₎ of approximately 18 ° with respect to 16. The wrapping container 14 is provided with an inclined stage 22 which is inclined at an angle? ₂ with respect to the bottom plate 20 by about 90 degrees. On the front surface of the inclined stage 22, a flat resin back plate 24 is fixed by an adhesive. The face of the glass plate G is supported on the back plate 24 so that the glass plate laminate 12 is mounted on the packaging container 14 in a vertical arrangement. The number of glass sheets G and lumber 10 mounted on the packaging container 14 is 300 or more in the case of a glass substrate of the sixth generation or 250 sheets in the case of a glass substrate of the seventh generation, Or more.

Moreover, the wrapping container 14, the bottom plate 20, a mounting surface and a bottom housing member 26 for supporting the approximately 18 ° angle (θ ₁₎ mounting surface (16) has a with respect to the 16, 1 Like receiving member 28 which is erected on the mounting surface 16 and supports the back surface of the inclined stage 22 as shown in Fig.

The pedestal 18 is formed by welding a plurality of long steel plates in longitudinal, transverse, and height directions, and the mounting surface 16 of the pedestal 18 is processed to have a predetermined flatness by grinding after the welding and assembling. The front and rear faces of the pedestal 18 are provided with openings 30, 30 through which hooks (not shown) of the forklift are inserted and withdrawn.

The laminate 10 is a paper of a size larger than the glass plate G in order to protect the glass plate G and a part of the laminate 10 is evacuated from the edge of the glass plate G. [ The elongated upper rim portion 10c out of the upper portion of the glass plate G out of the vacant portions of the laminate 10 is attracted to the adsorption pad of the unpacker And the lumber 10 is taken out of the packaging container 14. As shown in Fig. The raw material of the laminate 10 is preferably virgin pulp. Further, a raw material containing cellulose or the like may be used. The buffer requirement and thickness deviation requirements of the laminate 10 will be described later.

The lower lateral pressing members 15A and 15B are constituted by a main body 32 formed in a plate shape, a handle 34, a pressing plate 36, and the like.

The main body 32 has a shape bent by press molding of a metal plate of a predetermined shape and is detachably fixed to the mounting surface 16 of the pedestal 18 by a bolt (not shown). A screw rod 38 is fixed to a central portion of the handle 34 and the screw rod 38 is screwed to the main body 32 in a horizontal direction. The pushing plate 36 is in contact with the distal end portion of the screw rod 38. The push plate 36 is coupled to the main body 32 so as to be movable in the horizontal direction via a pair of guide bars 40, The handle 34, the pressing plate 36, the screw rod 38 and the guide bar 40 are unitized and detached from the main body 32. The unitized members with respect to the lower lateral pressing members 15A and 15B are inserted and coupled to the main body 32. Therefore, when the handle 34 inserted in the main body 32 is rotated in the direction of tightening, the pushing plate 36 is pushed by the screw rod 38 of the handle 34 to press the lower side surface of the glass plate laminate 12 Direction. By this operation, the lower side surfaces of the glass plate laminate 12 are held by the press plates 36 and 36 of the pair of lower lateral pressing members 15A and 15B shown in Fig. 2, (12) is fixed to the packing container (14).

As shown in Fig. 3, a buffer plate 42 having a rectangular shape of a predetermined thickness is placed on the surface of the glass plate laminate 12 mounted on the packaging container 14, and a front frame 44 is placed on the surface thereof. The lower end portion of the front frame 44 is coupled to the pedestal 18 and the lower end portion is tilted to the support point and is in contact with the surface of the buffer plate 42.

The upper lateral pressing member 17B is in contact with the side surface of the glass plate laminate 12 in a state in which the proximal end portion of the upper lateral pressing member 17B is joined to the frame-like receiving member 28 and is cantilevered. A hook 46 is provided on the side of the upper portion of the front frame 44 and a belt 48 is attached to the hook 46. The belt 48 is disposed to cross the upper lateral pressing member 17B and the end of the belt 48 is connected to the inclined stage 22 via the ratchet type hoisting device 50. [ The front frame 44 is fixed to the inclined stage 22 by the tension of the belt 48 by driving the ratchet type hoisting device 50 and winding up the belt 48. [ The upper lateral pressing member 17A has the same structure as the upper lateral pressing member 17B.

In order to satisfy the buffering performance of the glass plate G, the laminate 10 of the embodiment has a thickness of 50 to 100 탆 and a density of 0.80 g / cm ³ or less. The laminate 10 in which the thickness variation of the glass plate laminate 12 is 10% or less.

In the embodiment, the laminated paper 10 for a glass plate having a thickness of 0.7 mm or less specifies not only the thickness and the density as the buffering requirement but also the deviation of the thickness of the glass plate laminate 12 to 10% or less.

The large deviation of the thickness means that wrinkles are generated in the laminate 10 of the glass sheet laminate 12 or the interval between adjacent glass sheets G is increased. Particularly, in the case of the vertically stacked glass plate goniophotos, since the glass plate G is erected obliquely as shown in Fig. 4, the lower side of the glass plate G is spaced apart from the lower side of the adjacent glass plate G A phenomenon of discarding occurs. This phenomenon occurs when the glass plate G is separated from the bottom plate 20 by a distance of several mm from the bottom plate 20 so that the bottom plate 20 shown in Fig. 2 does not contact the glass plate G It is necessary to stack and laminate the glass plate G. This is caused by dropping the glass plate G on the bottom plate 20 by 10 mm or more. In order to suppress the occurrence of this phenomenon, it is necessary to strictly control the dimension of the packaging container 14, particularly the height of the bottom plate 20, the positioning accuracy of the glass plate G, It is necessary to reduce the distance between the glass plate G and the bottom plate 20 when the glass plate G and the bottom plate 20 are filled and laminated so that the distance between the glass plate G and the bottom plate 20 is less than 10 mm, More preferably 3 mm or less. It is preferable that the dimension error of the packaging container 14 is within ± 3 mm.

In order to reduce the variation in thickness of the glass plate laminate 12, the following method may be used. After the glass plate G is erected obliquely to the vertical stacking container 14 and the packaging container 14 is tilted toward the back plate 24 so that the glass plate G is substantially horizontal, The deviation of its thickness is reduced by its own weight, and then returned to the position under the packing container 14. [ As a result, the variation in the thickness of the glass sheet laminate itself can be reduced by the influence of gravity.

Particularly, in the case of a glass plate having a thickness of 0.7 mm or less, it has been experimentally confirmed that a large deviation in the thickness of the glass plate laminate causes a significant break in the glass plate G during storage or transportation. It is experimentally confirmed that the above-mentioned cracked cutout is largely reduced by specifying the deviation of the thickness of the glass plate laminate 12 to 10% or less.

On the other hand, in order to satisfy the function of the buffer material, the laminate 10 has a thickness of 50 to 100 탆. In other words, if the thickness is less than 50 탆, the laminate 10 is too thin and does not function as a cushioning material. If the thickness exceeds 100 탆, the laminate 10 becomes excessively thick, It gets easier. The occurrence of wrinkles in the laminate 10 means that the variation in the thickness of the glass sheet laminate described above increases, and it becomes difficult to suppress the variation in thickness of the glass sheet laminate to 10% or less. Further, the thickness of the laminate 10 is more preferably 70 to 80 占 퐉.

It is also necessary to control the humidity of the environment in which the laminate 10 is exposed, not only the thickness of the laminate 10, but also the cause of wrinkling in the laminate 10. The humidity of the environment in which the laminate 10 is exposed is preferably 40% or less. That is, when the laminate 10 is exposed in a high humidity environment, the laminate 10 absorbs moisture and wrinkles occur in the laminate 10. Therefore, in order to prevent wrinkles from being generated in the lumber 10, the lumber 10 may be double-packed so as not to be influenced by humidity in the package when the lumber 10 is shipped, or may be wrapped with vinyl or aluminum foil It is also important to do. In addition, it is necessary to control the humidity of the factory and the glass plate laminate 12 themselves, in which the laminator 10 from the laminator maker and the lumber 10 are sandwiched between the glass plate G and the glass plate G.

1, a desiccant 51 filled in the net is inserted into the opening 30 provided in the bottom plate housing member 26 of the packaging container 14. As shown in Fig. The glass plate package in which the glass plate laminate 12 is packed is packed by the vinyl sheet at the time of shipment, but the moisture in the sealed space packed in the vinyl sheet is absorbed by the desiccant 51. Thus, since the humidity of the glass sheet laminate 12 itself is controlled to be low, wrinkles of the laminate 10 can be prevented. It is also a good idea to seal the roll-shaped laminate from the laminate maker with vinyl and disposing a desiccant therein.

Here, the thickness variation of the glass plate laminate 12 means that the thickness of the glass plate laminate 12 is measured at several peripheral portions of the glass plate laminate 12, the maximum value thereof is found, and the ideal thickness is subtracted from the maximum value , And the value obtained by dividing the thickness obtained by subtraction by the ideal thickness. The ideal thickness is a thickness obtained by adding the value obtained by multiplying the manufacturer's notarized value of the thickness of the glass plate G by the number of laminations of the glass plate G and the value obtained by multiplying the notarized value of the manufacturer of the laminate 10 by the number of laminated sheets .

In addition, the thickness of the glass sheet laminate 12 in the glass sheet warp bodies shown in Figs. 1 and 3 can be measured with a vernier caliper or a duster, and in the case of a lateral laminated glass sheet laminate, it can be measured with a height gauge. In the case of the packing container 54 for wrapping the lateral laminated glass sheet laminate 52 in which the glass plates are laminated horizontally as shown in Fig. 5, Contact. Reference numeral 56 in Fig. 5 denotes an upper plate portion, and the glass plate laminate 52 is laterally laminated to the body 58 of the packing container 54 via the upper plate portion 56. [

Further, since the laminate 10 needs to satisfy the function as a buffer material, its density is specified to be 0.80 g / cm ³ or less. That is, if the density exceeds 0.80 g / cm ³ , the laminate 10 is excessively hardened, and therefore, it does not function as a buffer material for the glass plate G having a thickness of 0.3 mm or less.

In the case of the vertical laminated glass sheet laminate 12 shown in Figs. 1 to 3, deviation of the thickness of the laminated glass sheet is defined as 10% or less. In the case of the packaging container 54 for wrapping the horizontally laminated glass sheet laminate 52 in which the glass sheets are stacked horizontally as shown in Fig. 5, the deviation of the thickness of the glass sheet laminate 52 is defined as 3% or less . That is, in the case of the vertically stacked glass sheet laminate 12, since the self weight of the glass sheet G does not contribute to the reduction in the thickness variation, the thickness variation is set to the maximum allowable value of 10% or less. On the other hand, in the case of the lateral laminated glass sheet laminate 52 in which the weight of the glass sheet G contributes to the reduction in thickness variation, the variation in thickness can be defined as 3% or less.

[Experimental Example]

6 is a graph showing the defective (broken cutout) incidence rate of a glass plate (trade name AN100, manufactured by Asahi Glass Co., Ltd.) having a thickness of 0.7 mm and a thickness of the glass plate laminate 12 in the vertical laminated glass plate laminate And FIG. 7 is a graph showing the defective occurrence rate of the glass plate having the thickness of 0.7 mm and 0.3 mm of the laminated glass sheet 12 in the lateral laminated glass sheet laminate. The vertical axis of these graphs represents the defective occurrence rate of the glass plate, and the horizontal axis represents the deviation of the thickness of the glass plate laminate. In addition, these experiments were carried out by preparing 200 pieces of glass plate gluing laminated glass plates having a size of 1800 mm x 1500 mm through a laminated sheet. Among them, the number of glass plate warps in which a broken cutout occurs in the conveyance is defined as a failure occurrence rate. That is, the defective incidence rate of 5% means that broken pieces were observed on one or more glass plates in ten gonocytes of 200 gonads.

The thickness measurement portion of the laminated glass sheet 12 in the vertical laminated glass panel body is composed of a right upper corner portion (a), a right lower corner portion (b), and a left upper corner portion c), and the lower left corner (d).

Here, an example of a calculation example of the thickness variation of the glass plate laminate will be described.

Thickness of the glass plate (G): 0.7 mm (notarized value of the manufacturer)

Thickness of the laminate 10: 0.07 mm (notarized value of the manufacturer)

Number of glass plates (G): 300 sheets

Number of sheets (10): 300 sheets

Abnormal thickness of the glass plate laminate = 0.7 x 300 + 0.07 x 300 = 231 mm

Thickness of right upper corner portion (a): 237.5 mm

Thickness of the right lower corner (b): 242.5 mm

Thickness of upper left corner (c): 236.5 mm

Thickness of left lower corner d: 242.5 mm

Maximum value of glass plate laminate thickness: 242.5mm

Variation (%) of glass plate laminate thickness = (242.5-231) x 100/231 = 5 (%)

The thickness measurement sites of the laminated glass sheet 12 in the lateral laminated glass sheet laminate body are the four corner portions a to d of the four corner portions indicated by the chain double-dashed line in Fig. 9 and the lateral pressing member 60 shown in Fig. Quot; e " to " l "

As shown in Fig. 6 and Table 1 below, in the case of the vertically stacked glass plate panel body, the deviation of the thickness of the glass plate laminate by 10% was not generated in all of the 0.7 mm thick glass plate and 0.3 mm thick glass plate. If it exceeds 10%, cracked incision occurred. It has also been found that as the variation in thickness becomes larger, the defective occurrence rate becomes higher for a glass plate having a thickness of 0.3 mm than a glass plate having a thickness of 0.7 mm.

On the other hand, as shown in Fig. 7 and Table 2 below, in the case of the lateral laminated glass plate panel, the thickness deviation of the glass plate laminate was broken to 3% both in the glass plate having the thickness of 0.7 mm and the glass plate having the thickness of 0.3 mm However, if it exceeded 3%, a broken cut occurred. It has also been found that as the variation in thickness becomes larger, the defective occurrence rate becomes higher for a glass plate having a thickness of 0.3 mm than a glass plate having a thickness of 0.7 mm.

In order to prevent the resin component contained in the laminate 10 from being transferred onto the surface of the glass plate G to cause paper shape, burning, or contamination, the laminate 10 of the embodiment is formed so that the smoothness of the paper is 20 seconds or less , Preferably 18 seconds or less. As a result, the contact area with the surface of the glass sheet G is reduced, so that the transfer of the resin component can be prevented.

10, the angle &thetas; between the surface of the glass plate G and the mounting surface 16 is 45 (mm), as shown in Fig. 10, when the glass plate G is laminated on the vertical stacking container 14 shown in Fig. Deg.] And less than 90 [deg.]. In other words, when? ₁ = 18 占 and? ₂ = 90 占 in Fig. 2, the angle? = 72 占 in Fig. 10 is obtained but the angle? Is not limited to 72 占 and the angle? Range.

10, the angle? Between the surface of the glass plate G and the upper dish portion 56 is the same as that of the glass plate G, as shown in Fig. 10, when the glass plate G is laminated on the horizontal stacking packing container 54 shown in Fig. And more preferably 0 DEG to 10 DEG.

Although the present invention has been described in detail with reference to specific embodiments, it is apparent to those skilled in the art that various modifications and changes may be made without departing from the scope and spirit of the present invention.

This application is based on Japanese Patent Application No. 2010-103851 filed on April 28, 2010, the contents of which are incorporated herein by reference.

G: Glass plate
10: Lagoons
12: Glass plate laminate
14: Bottling container
15A, 15B: Lower lateral pressing member
16: Mounting surface
17A and 17B: upper lateral pressing member
18: Stand
20: bottom plate
22: ramp
24:
26: bottom plate receiving member
28: frame-shaped housing member
30: opening
32:
34: Handle
36: push plate
38: Screw rod
40: Guide Bar
42:
44: front frame
46: Hook
48: Belt
50: Ratchet hoisting device
51: Desiccant
52: Glass plate laminate
54: Bottling container
56: upper dish portion
58:
60: lateral pressing member

Claims (8)

A glass plate warp body in which a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is packed with a packing container,
Wherein the thickness of the glass sheet laminate is not more than 10%, and the thickness of the glass sheet laminate is not more than 10%, and the thickness of the glass sheet laminate is not more than 10%
The deviation of the thickness of the glass sheet laminate is obtained by measuring the thickness of the glass sheet laminate at at least four corners of the glass sheet laminate to obtain the maximum thickness of the four corners, subtracting the ideal thickness from the maximum value, And a value obtained by dividing the obtained thickness by the ideal thickness. A glass plate warp body in which a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is packed with a packing container,
Wherein the thickness of the glass plate is not more than 0.7 mm and the glass plate laminate is a horizontally laminated glass plate laminate in which the glass plate is horizontally laminated,
The deviation of the thickness of the glass sheet laminate is obtained by measuring the thickness of the glass sheet laminate at at least four corners of the glass sheet laminate to obtain the maximum thickness of the four corners, subtracting the ideal thickness from the maximum value, And a value obtained by dividing the obtained thickness by the ideal thickness. The glass sheet warper according to claim 1 or 2, wherein the sheet has a thickness of 50 to 100 탆 and a density of 0.80 g / cm ³ or less. The glass plate warp body according to claim 1 or 2, wherein the glass plate has a size of 1800 mm x 1500 mm or more. The glass plate warper according to claim 1 or 2, wherein the glass plate has a thickness of 0.3 mm or less. The glass plate warp body according to claim 1 or 2, wherein the glass plate is a glass substrate for a flat panel display. A method for packing a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is wrapped by a wrapping container. The glass plate has a thickness of 0.7 mm or less, the sheet has a thickness of 50 to 100 μm, Is not more than 0.80 g / cm < ³ >, and the glass sheet laminate is a vertically stacked glass sheet laminate in which the glass sheet is tilted with respect to the vertical direction and the glass plate laminate has a thickness variation of not more than 10% Wherein the thickness of the glass sheet laminate is measured at at least four corners of the glass sheet laminate to determine the maximum thickness of the four corners, The thickness of the glass plate laminate, which is a value obtained by subtracting the ideal thickness from the maximum value and dividing the thickness obtained by subtraction by the ideal thickness, method. A method for packing a glass plate laminate in which a plurality of glass plates are stacked with a sheet interposed therebetween is wrapped by a wrapping container. The glass plate has a thickness of 0.7 mm or less, the sheet has a thickness of 50 to 100 μm, Is not more than 0.80 g / cm < ³ >, and the glass sheet laminate is a horizontally laminated glass sheet laminate in which the glass sheet is laminated horizontally, wherein the glass sheet laminate has a thickness variation of not more than 3% Wherein a deviation of the thickness of the glass sheet laminate is obtained by measuring the thickness of the glass sheet laminate at at least four corners of the glass sheet laminate to determine the maximum thickness of the four corners, Wherein the thickness is a value obtained by subtracting the thickness and dividing the thickness obtained by subtraction by the ideal thickness.

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