TW201604161A - Cleaning device and cleaning method for cleaning slip sheet for glass plate, glass plate laminate, glass plate packaging, manufacturing method of slip sheet for glass plate, and slip sheet for glass plate - Google Patents

Abstract

A slip sheet supply device (46) and a slip sheet winding device (48) are driven to move a slip sheet (11) along a slip sheet travel path (50). Disc brushes (42) and a suction device (44) are driven. The disc brushes (42) scrub the front and back surfaces of the slip sheet (11) to scrape off foreign matter (45) adhering to the front and back surfaces, and the suction device (44) suctions up the scraped off foreign matter (45) to remove the same from the slip sheet (11). Further, after cleaning by removal of the foreign matter (45), the slip sheet (11) is wound on the slip sheet winding device (48).

Description

Cleaning device and cleaning method for glass sheet spacer, glass sheet laminate, glass plate package, method for manufacturing spacer paper for glass plate, and spacer paper for glass plate

The present invention relates to a cleaning device and a cleaning method for a spacer for a glass sheet, a glass sheet laminate, a glass sheet package, a method for producing a spacer for a glass sheet, and a spacer for a glass sheet.

Patent Document 1 discloses a container in which a glass plate of an FPD (Flat Panel Display) such as a liquid crystal display or a plasma display is laminated via a spacer paper as a cushioning material, and the laminated body is bundled.

The laminated body is bundled into a container at a glass plate manufacturing factory, and then transported to a display assembly factory by a transport mechanism such as a truck.

The spacer paper used in the above laminated body is obtained by taking out a strip-shaped spacer paper from a spacer roll, and cutting the strip-shaped spacer paper into a specific size by a cutter. As the spacer paper, a virgin pulp as a raw material, a cellulose-containing one, or a waste paper is used.

On the other hand, the laminated system carried into the display assembly factory is unpacked at the display assembly factory to take out the glass plate. When a functional layer for a electronic device (Thin Film Transistor, CF: Color Filter) or the like is formed on the surface of the glass body, the washing layer is included before the functional layer forming step. The surface of the glass layer is washed by a clean step.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2013-256315

However, since the glass plate is laminated with the front surface and the back surface pressed against the spacer paper, there is a problem that foreign matter of the spacer paper adheres to the front surface and the back surface of the glass plate.

The foreign matter adhering to the front surface and the back surface of the glass sheet is removed by the above-described cleaning step. However, when the amount of foreign matter adhered is large, the foreign matter which cannot be removed by washing is caused to cause deterioration in quality.

Therefore, in the state of the laminated body, if the amount of adhesion of the foreign matter adhering to the front surface and the back surface of the glass sheet can be reduced, the quality of the glass sheet can be improved, and the yield of the subsequent step after the functional layer forming step can be improved. Advantage.

Further, the foreign matter adhering to the spacer of the glass sheet can be said to be the scrap of the resin component such as the pulp of the spacer paper and the adhesive foreign matter, and is collectively referred to as fine particles. In addition, the adhesive foreign matter refers to an adhesive component that is not completely cured, such as an adhesive tape attached to a waste paper, or is peeled off from the paper, during the process of manufacturing the spacer paper, in the middle of the waste paper collection path. Adhesive resin component contained in paper powder or paper.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a cleaning device and a cleaning method for a glass sheet spacer which can reduce the amount of adhesion of foreign matter adhered to a glass sheet from a separator, and a glass sheet laminate and a glass sheet. A method for producing a spacer and a spacer for a glass sheet, and a spacer for a glass sheet.

In order to achieve the above object, a cleaning device for a spacer for a glass sheet according to an aspect of the present invention cleans a spacer paper interposed between respective glass sheets of a plurality of glass sheets, and includes: a brush mechanism that abuts a foreign matter on at least one of the front side and the back side of the spacer paper; and a suction mechanism that is pulled out by the brush mechanism The foreign matter is removed from the above-mentioned spacer paper.

In order to achieve the above object, a method for cleaning a spacer for a glass sheet according to an aspect of the present invention is to wipe the front side of the spacer paper by a brush mechanism for a spacer paper interposed between the glass sheets of the plurality of glass sheets. At least one of the back surfaces picks up foreign matter present on the surface layer of the one surface, and the foreign matter picked up by the suction paper is sucked and removed by the suction mechanism.

In order to achieve the above object, the glass sheet laminate of one aspect of the present invention is obtained by removing the foreign matter by the cleaning method of the spacer for the glass sheet of the present invention, and the spacer paper is interposed between the glass sheets of the plurality of glass sheets. to make.

In order to achieve the above object, the glass sheet laminate of one aspect of the present invention is obtained by bundling a glass sheet laminate of the present invention in a bundle container.

In order to achieve the above object, a method for producing a spacer for a glass sheet according to an aspect of the present invention includes a step of removing foreign matter by a cleaning method for a spacer for a glass sheet of the present invention.

A spacer paper for a glass plate according to an aspect of the present invention, in order to achieve the above object, is a spacer paper interposed between each glass plate of a plurality of glass plates, and in a dust-free room of 10000 class, the above A4 size The amount of dust generated when the spacer sheets are overlapped and rubbed by one round trip/sec (the number of foreign matters of 0.5 μm or more in the cube of 1 ft ³ ) is 10,000 or less.

According to one aspect of the present invention, one side of the spacer paper is brushed by the brush mechanism to remove foreign matter existing on one side, and the foreign matter that is thrown out is not attached to one side again, and the foreign matter that is ejected is sucked and sucked by the attraction mechanism. . Thereby, according to an aspect of the present invention, the amount of adhesion of foreign matter adhering to the glass sheet from one side of the spacer paper can be reduced. For example, the number of particles having a specific size (for example, a diameter of 1 μm or more) attached to one side of the spacer from the glass sheet can be reduced by about 40%.

Further, by using the foreign matter that has been ejected and attracting the spacer paper from which foreign matter (hereinafter also referred to as "cleaning" is removed, it is possible to provide a glass sheet laminate in which the amount of adhesion of foreign matter is reduced, and The glass plate laminate is bundled in a glass plate package of the packaging container.

The one side of the spacer paper refers to at least one of the front side and the back side of the spacer paper. In addition to the two sheets of spacer paper disposed on both sides of the glass sheet laminate body, the interval is also cleaned in order to fit between the two glass sheets. The front and back of the paper. Further, it is more preferable to use the spacer paper in accordance with the position of the glass plate laminate as described above, and to manage the spacer paper when cleaning the front and back sides of all the spacer paper.

In the cleaning device and the cleaning method according to an aspect of the invention, the surface pressure of the brush mechanism with respect to the spacer paper is preferably 0.1 kPa or more and 1.0 kPa or less.

According to one aspect of the present invention, since the surface pressure of the brush mechanism with respect to the spacer paper is set to be 0.1 kPa or more and 1.0 kPa or less, the amount of adhesion of foreign matter adhering to the glass sheet can be limited to an allowable range. Since the surface pressure is set to 0.1 kPa or more, a good surface pressure can be obtained, so that the cleaning can be performed satisfactorily. On the other hand, since the surface pressure is set to 1.0 kPa or less, one side of the spacer paper is not affected by the brush. It is cut by the organization and can be cleaned well. As the brush mechanism, a soft member such as a wire diameter of 0.1 mm or less and a hair length of about 10 mm and a material of nylon is preferable for the foreign matter. The nylon is selected from at least one of nylon 6, nylon 66, nylon 610, nylon 612, and nylon 12.

A cleaning device for a spacer for a glass sheet according to an aspect of the present invention includes: a spacer paper supply mechanism that feeds the spacer paper that is wound into a roll shape in a roll shape; and a spacer paper take-up mechanism that is from the above The strip-shaped spacer paper fed from the spacer paper supply mechanism is wound into a roll shape; and the brush mechanism and the suction mechanism are preferably disposed in a space between the spacer paper supply mechanism and the spacer paper take-up mechanism on.

Preferably, the method for cleaning a spacer for a glass sheet according to an aspect of the present invention is that the spacer paper which is wound into a roll shape is fed by a spacer paper supply mechanism, and is carried by a spacer paper take-up mechanism. The above-mentioned spacer paper is taken up in a roll shape, and the brush mechanism and the suction mechanism disposed on the paper travel path between the spacer paper supply mechanism and the spacer paper winding mechanism are self-contained. The spacer paper removes the above foreign matter.

According to an aspect of the present invention, the strip-shaped spacer paper which is wound into a roll shape before being cleaned is fed by a spacer paper supply mechanism, and the brush mechanism and the suction mechanism are disposed on the transport path of the strip-shaped spacer paper. The mechanism cleans one side of the strip-shaped spacer paper and winds the cleaned strip-shaped spacer paper by a spacer paper take-up mechanism. Thereby, the cleaning of the spacer paper can be automated, and the cleaned spacer paper can be stored in a roll shape. In the case of use as a spacer for a glass sheet, the strip-shaped spacer paper is taken out from the cleaned roll, and the strip-shaped spacer paper is cut into a size corresponding to the size of the glass sheet by a cutter.

Preferably, in the cleaning device and the cleaning method of the present invention, the brush mechanism has a rotating disk brush having a rotation axis perpendicular to one side of the spacer paper, or has a parallel direction with respect to one side of the spacer paper. Rotating roller brush for rotating shaft.

According to one aspect of the present invention, the rotating disc brush and the rotating roller brush can well pick up foreign matter adhering to one side of the spacer paper.

When the disc brush is applied to the cleaning device including the spacer paper supply mechanism and the spacer paper winding mechanism, a plurality of disc brushes may be arranged in a direction orthogonal to the transport direction of the strip-shaped spacer paper. Further, when the roller brush is applied to the cleaning device, a roller brush having a longer width dimension than the strip-shaped spacer paper may be disposed in a direction orthogonal to the conveying direction of the strip-shaped spacer paper.

Preferably, the cleaning method of one aspect of the present invention is made of the above-mentioned spacer paper system.

The spacer paper according to an aspect of the present invention preferably has a content of the organic compound of 0.08% by mass or less.

According to the cleaning device and the cleaning method for the spacer for glass sheets of the present invention as described above, the amount of adhesion of the foreign matter adhering to the glass sheet from the spacer can be reduced. Moreover, according to the present invention, it is possible to provide a glass sheet laminate in which the amount of foreign matter adhered from the spacer paper is reduced, and a glass sheet package in which the glass sheet laminate is bundled into a container. Moreover, according to the present invention, it is possible to provide a method for producing a spacer for a glass sheet having a reduced amount of foreign matter adhered to a glass sheet, and a spacer for a glass sheet.

10‧‧‧ spacer paper

10A‧‧‧Upper film

10B‧‧‧ side film

11‧‧‧ spacer paper

12‧‧‧Layer

14‧‧‧ Container

16‧‧‧Bundle

18‧‧‧Base

20‧‧‧ bottom receiving board

22‧‧‧Rack

24‧‧‧Back support panel

26‧‧‧ wall

28‧‧‧ loading surface

30‧‧‧ openings

32‧‧‧Bottom film

40‧‧‧ cleaning device

42‧‧‧Disc brush

44‧‧‧Attraction device (attraction mechanism)

45‧‧‧ Foreign objects

46‧‧‧ Spacer supply device

48‧‧‧Interval paper take-up device

50‧‧‧ spaced paper travel path

52‧‧‧Rolling shaft

54‧‧‧Motor

56‧‧‧Winding shaft

58‧‧‧Motor

60‧‧‧ motor

62‧‧‧ frame

64‧‧‧Attraction pump

66‧‧‧ attracting mouth

70‧‧‧ cleaning device

72‧‧‧ Roller brush

74‧‧‧Motor

A‧‧‧ arrow

B‧‧‧ arrow

D‧‧‧ arrow

G‧‧‧glass plate

Length of L1‧‧‧ frame

L2‧‧‧The length of the roller brush

P1‧‧‧ rotating shaft of disc brush

P2‧‧‧Rolling axis of roller brush

W‧‧‧ Width of spacer paper

Fig. 1 is an overall perspective view of a package body of an embodiment.

Fig. 2 is a perspective view showing the package body of the laminated paper and the glass sheet in the form of a laminate of the container.

3 is a view showing a cleaning device according to the first embodiment, (A) is a side view of the cleaning device according to the first embodiment, and (B) is a plan view of a main portion of the cleaning device according to the first embodiment.

Fig. 4 is a view showing a cleaning device according to a second embodiment, (A) is a side view of the cleaning device according to the second embodiment, and (B) is a plan view of a main portion of the cleaning device according to the second embodiment.

Hereinafter, a preferred embodiment of a cleaning apparatus and a cleaning method for a spacer for a glass sheet of the present invention, and a method for producing a glass sheet laminate, a glass sheet package, and a spacer for a glass sheet will be described with reference to the accompanying drawings.

1 is a glass plate laminate (a glass plate laminate according to an embodiment, hereinafter referred to as "layered body") 12 which is laminated using a spacer paper (interval sheet of the embodiment) 10 and is bundled in a container (bundling container) 14 An overall perspective view of a vertically stacked glass plate package (glass plate package of the embodiment, hereinafter referred to as "bundle") 16 is used. 2 is a perspective view showing the package body 16 in the form of a laminate of the spacer paper 10 and the glass sheet G with respect to the container 14, and the arrow A indicates the lamination direction of the spacer paper 10 and the glass sheet G with respect to the container 14. Further, although the vertically stacked container 14 has been exemplified as the packaging container, the present invention is not limited thereto, and the laminated body 12 may be provided as a boxed case.

[Construction of Container 14]

As shown in FIG. 1 and FIG. 2, the container 14 includes a base 18 serving as a base, a bottom receiving plate 20 on the lower side of the glass plate G, a frame 22 having a side triangular shape, and a main surface supporting the glass plate G ( The flat back receiving plate 24, the wall body 26, and the like are formed on either the front side and the back side.

The bottom receiving plate 20 is attached to the loading surface 28 included on the upper surface of the base 18, and is oppositely mounted. The carrier surface 28 is inclined and disposed. The frame 22 is erected on the loading surface 28, and the inclined surface of the front surface of the frame 22 is set to be 90° to 100° with respect to the main surface of the bottom receiving plate 20 (the surface on which the lower edge portion of the glass plate G is placed). It is particularly preferably about 95°, and the back receiving plate 24 is fixed against the inclined surface. In order to prevent damage caused by contact with the glass sheet G when the glass sheet G is placed, a cushioning material (not shown) such as rubber or a hard foaming resin is provided on the bottom receiving plate 20 and the back receiving plate 24. .

A wall 26 is erected behind the loading surface 28 of the base 18, and the frame 22 is supported by the wall 26. Further, on the front surface of the base 18, a pair of the opening portions 30 are inserted and removed by a claw (not shown) of the forklift truck.

The bottom receiving plate 20 is placed on the loading surface 28 obliquely via a plurality of triangular bottom pieces 32 disposed between the loading surface 28 and the bottom receiving plate 20. Moreover, the bottom receiving plate 20 has a main surface that is preferably inclined by 5 to 25 degrees with respect to the loading surface 28 of the base 18, more preferably 10 to 20 degrees, and particularly preferably about 18 degrees. Thereby, when the glass plate is loaded into the container 14 by the glass plate loading device (not shown), the positioning operation of the glass plate G becomes easy. Further, since the main faces of the respective glass sheets G are in contact with the main faces of the glass sheets G on the side of the back receiving plate 24 due to their own weight, unnecessary voids are not generated between the main faces of the respective glass sheets G. Further, it is possible to stabilize the glass plate G placed thereon, and it is possible to prevent the glass plate G from being displaced or collapsed in the forward direction (the direction of the arrow X in FIG. 1), and to prevent smashing and cracking.

Further, in the container 14 shown in Fig. 1, a lateral pressing member that restricts the lateral displacement of the laminated body 12 in the Y direction may be provided. Further, the container 14 shown in Fig. 1 is a container in which the laminated body 12 is vertically stacked, but may be a container in which the laminated body 12 is horizontally stacked in the horizontal direction. In other words, the package body 12 is bundled in the package body of the container, and is not limited to the package body 16 of FIGS. 1 and 2 .

[Laminated body 12]

The laminated body 12 is configured by laminating a plurality of sheets of glass sheets G and a plurality of sheets of spacer paper 10 in a container 14 .

<Glass plate G>

The glass plate for FPD for glass-based G-based liquid crystal displays is preferably 0.7 mm or less in thickness. Further, the glass plate G is a glass plate having a size of about 1300 mm × 1100 mm in the fifth generation (G5), and the size of the glass plate G is not limited to the fifth generation, and may be the sixth generation. 1500mm × 1800mm or more in size or lower than the glass plate of the 5th generation.

<Space Paper 10>

The spacer paper 10 is a paper having a larger size than the glass sheet G in order to protect the glass sheet G. Further, when the upper sheet 10A of the spacer paper 10 is detached from the spacer 10 to remove the glass sheet G, it is held by the spacer absorbing member (not shown) for a certain amount (for example, from the upper edge of the glass sheet G (for example) (for example) 50~100mm). In the same manner, when the glass sheet G is removed from the spacer paper 10, the side sheet 10B of the spacer paper 10 is held by the side edge of the glass sheet G in order to be sucked and held by the suction member for the spacer sheet 10 ( For example, 50~100mm).

Further, the spacer paper 10 of the present embodiment is manufactured in such a manner that the amount of dust generated is small. In the measurement method described below, the amount of dust generated in the spacer paper 10 is 10,000 or less, preferably 8,000 or less, and more preferably 5,000 or less. The method of measuring the amount of dust generated is as follows. Two sheets of paper 10 cut into A4 size were prepared. In a clean room of class 10000, prepare a cube with an internal dimension of 305 x 305 x 305 mm. One side of the cube is open and the spacer paper can be removed from there. The cut-away spacers 10 are overlapped in the cube and rubbed against each other with both hands. The mutual friction was performed 10 times at a speed of 1 round trip/sec. The number of foreign matters having a particle diameter of 0.5 μm or more in the cube at this time was measured by a particle counter. This is set as the amount of dust generated (the number of foreign matter of 0.5 μm or more in the cube of 1 ft ³ ).

Further, the raw material of the spacer paper 10 is preferably a virgin pulp, but may be a raw material containing cellulose or the like, or may be a waste paper. Moreover, the content of the organic compound in the spacer paper 10 is preferably 0.08% by mass or less. When the content of the organic compound is 0.08% by mass or less, the organic compound is not easily transferred to the glass plate. The organic compound here is determined by JIS P8224 The resin component of the spacer paper 10.

The manufacturing method of the spacer paper 10 for glass sheets is as follows.

First, a paper stock solution (liquid in which the pulp is diluted with water) is formed into a film shape so as to have a uniform thickness, and is dehydrated to form a wet paper (paper). The wet paper is further subjected to dehydration and pressing by a press roll or a belt-shaped felt or the like. The dehydrated and pressed wet paper is dried in an environment of 100 to 150°. By this step, the state of the paper is made.

The dried paper may be subjected to a calender treatment by a kneading of a calender roll or the like as needed to smooth the front surface and the back surface. Further, between the drying and the calendering treatment, a coating or the like may be applied to the surface of the smoothed paper. The paper which has passed through the above steps is taken up on a reel or the like as a glass sheet spacer paper, and is formed into a roll shape.

Further, the spacer paper 10 may be washed as a raw material before the preparation of the paper raw material liquid, or may be subjected to shower washing before the wet paper is dried. By such a washing step, foreign matter in the spacer paper 10 can be reduced.

Further, the spacer paper 10 is obtained by removing the foreign matter existing on the front surface and the back surface by the cleaning device of the embodiment described later. That is, the brush body is used to wipe at least one of the front surface and the back surface of the spacer paper 10, and the foreign matter existing in the surface layer of one side is removed, and the foreign matter picked up by the suction mechanism is sucked and removed from the spacer paper. This step may be performed before the spacer paper is taken up in a roll shape, or may be performed on a strip-shaped spacer paper fed from a roll paper which is taken up in a roll shape.

[cleaning device] <Configuration of Cleaning Device 40 of First Embodiment>

Fig. 3(A) is a side view of the cleaning device 40 of the first embodiment, and Fig. 3(B) is a plan view of a main portion of the cleaning device 40.

The cleaning device 40 is composed of a plurality of disk brushes (brush mechanism) 42, a plurality of suction devices (suction mechanisms) 44, a spacer paper supply device (spacer paper supply mechanism) 46, and a spacer paper winding device (spacer paper take-up mechanism) ) 48 constitutes.

A plurality of disk brushes 42 and a plurality of suction mechanisms 44 are disposed in the paper path 50 between the spacer paper supply device 46 and the spacer paper winding device 48, and are disposed at upper and lower symmetrical positions with the strip-shaped spacer paper 11 interposed therebetween. There is a pair. Since the plurality of disk brushes 42 and the two suction devices 44 disposed above and below the spacer paper 11 have the same configuration, the plurality of disk brushes 42 and the two suction devices 44 disposed above are described below. The plurality of disc brushes 42 and the two suction devices 44 that are disposed are denoted by the same reference numerals, and description thereof will be omitted.

<Spacer paper supply device 46, spacer paper winding device 48>

In the spacer paper supply device 46, the strip-shaped spacer paper 11 before cleaning is wound up in a roll shape. The spacer paper 11 is taken up by the take-up shaft 52 of the spacer paper supply device 46, and the winding shaft 52 is rotated in the feeding direction by the motor 54, thereby being sent in the direction of the arrow B. When the fed paper 11 passes through the spacer paper travel path 50, the foreign matter 45 existing on the front and back surfaces is removed by the disk brush 42 and the suction device 44, and the winding shaft 56 is taken up by the spacer paper winding device 48. Winding. The take-up shaft 56 is rotated by the motor 58 in the winding direction.

Here, when the foreign matter 45 is pulled out by the disk brush 42, a specific tension is applied to the spacer paper 11 through the spacer paper travel path 50, and even if pressure is applied by pressing the disk brush 42, the spacer paper 11 is not pleated. It is preferable to improve the performance of the foreign matter 45.

As a function of the additional tension, the winding speed of the motor 58 is set to be higher than the feeding speed of the motor 54, and it is preferable to provide the torque limiting means to the take-up shaft 52 of the spacer paper supply device 46. When the torque limiting device loads the winding shaft 52 with a torque of a specific torque or more, the winding shaft 52 is slid with respect to the power transmission of the motor 54, and the winding shaft 52 is only dependent on the torque of the winding shaft 56. Rotating device. By providing the torque limiting device, since the tension paper is often attached to the spacer paper 11 traveling in the spacer paper travel path 50, the disc brush 42 can be favorably performed on the foreign matter 45.

Further, instead of the torque limiting device, the spacer paper 11 may be wound by a floating roller that moves in the vertical direction with respect to the main surface of the spacer paper 11, and the spacer paper 11 that is traveling in the spacer paper traveling path 50 may be attached. tension. Moreover, the traveling speed of the spacer paper 11 is appropriately set so that The speed at which the cleaning ability of the disk brush 42 and the suction device 44 is sufficiently exerted.

<disc brush 42>

The disk brush 42 is formed by arranging a plurality of soft hair materials in a disk-shaped support body, and the soft hair material has a specific pressure (face pressure) at a front end portion thereof to abut against the front surface and the back surface of the spacer paper 11. Further, the power from the motor 60 is transmitted and rotated as the arrow C. Thereby, the foreign matter existing on the front surface and the back surface of the spacer paper 11 is extracted. The rotation axis P1 of the disk brush 42 is set to be perpendicular to the main surface of the spacer paper 11, and the vertical direction does not mean a strict vertical direction, but is included in the allowable range of the cleaning performance of the guaranty disk brush 42. The angle of inclination.

As shown in FIG. 3(B), the disk brush 42 has a specific interval in the width direction of the partition paper 11 (the W direction of FIG. 3(B)) which is orthogonal to the direction of the feed direction indicated by the arrow B with respect to the partition paper 11. And configuration. Further, the disk brush 42 is arranged in a zigzag shape, and the entire paper 11 of the plurality of disk brushes 42 is wiped by a plurality of disk brushes 42.

<Attraction device 44>

The suction device 44 is disposed close to the disk brush 42 on the upstream side and the downstream side in the traveling direction of the spacer paper 11 with respect to the disk brush 42.

The suction device 44 is configured to include a frame body 62 having a vertical axis with respect to a direction orthogonal to the feeding direction indicated by an arrow B of the spacer paper 11, and a suction pump 64.

The arrangement position of the suction device 44 is not limited to the two positions on the upstream side and the downstream side, and it is only required to be provided at least on the downstream side. The suction device 44 on the upstream side has a function of performing preliminary washing before the foreign matter is ejected by the disc brush 42, and the suction device 44 on the downstream side has a function of sucking and removing the foreign matter 45 ejected by the disc brush 42. Therefore, the suction device 44 only needs to be disposed at least on the downstream side.

The length L1 of the frame 62 is longer than the width W of the spacer paper, and is spaced apart from the spacer paper 11 so as to cover the entire width of the spacer paper 11. A suction port 66 is provided in a plurality of strips or one slit along the longitudinal direction of the frame 62 on the partition paper facing surface of the frame 62. therefore, By rotating the disk brush 42 and driving the suction pump 64, the foreign matter 45 drawn by the disk brush 42 is sucked and removed from the suction port 66 through the casing 62 by the suction pump 64.

In addition, the form of the suction means is not limited to the suction device 44, and it can be applied as long as the foreign matter 45 which can be pulled out by the disk brush 42 can be sucked and removed without being attached to the spacer paper 11 again. For example, a suction port may be provided in the disk brush 42, and the suction port and the suction pump 64 may be connected via a rotary joint, and the foreign matter 45 picked up by the disk brush 42 may be sucked and removed from the suction port of the disk brush 42. form. Further, it is also possible to cover all of the disk brush 42 with a frame and suck and remove it from the suction port of the frame.

<The role of the cleaning device 40>

The spacer paper supply device 46 and the spacer paper winding device 48 are driven to advance the spacer paper 11 along the spacer paper travel path 50 with a certain specific tension.

When the travel of the spacer paper 11 starts, the disk brush 42 and the suction device 44 are driven.

Thereby, the front surface and the back surface of the spacer paper 11 are wiped by the rotating disc brush 42, and the foreign matter 45 adhering to the front surface and the back surface is ejected by the disc brush 42, and the foreign matter 45 that is ejected is sucked by the suction device 44. The spacer paper 11 is sucked and removed. Then, the cleaned spacer paper 11 from which the foreign matter 45 has been removed is taken up by the spacer paper take-up device 48.

Therefore, according to the cleaning device 40 of the embodiment, the cleaning of the spacer paper 11 can be automated. Moreover, the cleaned spacer paper 11 can be stored in a roll shape.

Thereafter, when used as the spacer paper 10 for the glass sheet G, the strip-shaped spacer paper 11 is taken out from the self-cleaning reel, and the strip-shaped spacer paper 11 is cut into a size corresponding to the size of the glass sheet by a cutter. . Therefore, with the laminated body 12 shown in FIG. 1, the amount of adhesion of the foreign matter 45 adhered to the glass sheet G from the spacer 10 can be reduced.

Thereby, the laminated body 12 in which the amount of adhesion of the foreign material 45 from the spacer 10 is reduced, and the package body 16 in which the laminated body 12 is bundled in the container 14 can be provided.

<Configuration of Cleaning Device 70 of Second Embodiment>

Fig. 4 (A) is a side view of the cleaning device 70 of the second embodiment, and Fig. 4 (B) is a cleaning device. Set the top view of the main part of 70.

The cleaning device 70 is different from the cleaning device 40 shown in Fig. 3 in that a roller brush 72 is used instead of the disk brush 42, and the other constituent members are the same. Therefore, the same components are denoted by the same reference numerals, and their description will be omitted.

The roller brush 72 is formed by arranging a plurality of soft bristle materials on the surface of the rotating shaft, and the soft wool material has a specific pressure (face pressure) at the front end portion thereof to abut against the front surface and the back surface of the spacer paper 11. Further, the power from the motor 74 is transmitted and rotated as indicated by the arrow D. Thereby, the foreign matter 45 existing on the front surface and the back surface of the spacer paper 11 is taken out.

The rotation axis P2 of the roller brush 72 is set to be parallel to the main surface of the spacer paper 11, but the parallel direction does not mean a strict vertical direction, but is also included in the allowable range of the cleaning performance of the roller brush 72. Angle.

The roller brush 72 is disposed in a direction orthogonal to the feeding direction indicated by the arrow B of the spacer paper 11, and the length L2 of the roller brush 72 is longer than the width W of the spacer paper 11, and is disposed to cover the spacer paper 11. Width wide.

<The role of the cleaning device 70>

The spacer paper supply device 46 and the spacer paper winding device 48 are driven to advance the spacer paper 11 along the spacer paper travel path 50 with a certain tension applied thereto.

When the spacer paper 11 starts to travel, the roller brush 72 and the suction device 44 are driven.

Thereby, the front surface and the back surface of the spacer paper 11 are rubbed with the rotating roller brush 72, and the foreign matter 45 adhering to the front surface and the back surface is ejected by the roller brush 72, and the foreign matter 45 that has been ejected is separated by the suction device 44. Paper 11 is attracted to remove. Then, the cleaned spacer paper 11 from which the foreign matter 45 has been removed is taken up by the spacer paper take-up device 48.

Therefore, according to the cleaning device 70 of the embodiment, the same effects as the cleaning device 40 shown in Fig. 3 can be obtained.

[Other forms of cleaning device]

In the embodiment, the cleaning device 40, 70 shown in FIGS. 3 and 4 cleans the room. The paper separating sheet 11 but the cleaning device and the cleaning method of the spacer paper 11 are not limited thereto. For example, the spacer paper 10 before cutting the cleaning paper 11 before cutting into a specific size may be cleaned in a single piece by the disk brush 42, the roller brush 72, and the suction device 44. Further, the brush mechanism is not limited to the disk brush 42 and the roller brush 72, and may be applied as long as it is a brush mechanism that can pull out the foreign matter 45 existing on the surface layers of the spacer sheets 10 and 11.

Further, the cleaning devices 40 and 70 shown in FIGS. 3 and 4 are in a form in which the spacer paper 11 travels. However, the brush mechanism (the disk brush 42 and the roller brush 72) may be moved without moving the spacer paper 11 The suction device 44 moves relative to the spacer paper 11 to clean the form of the spacer paper 11. Further, the spacer paper 11 and the brush mechanism (the disk brush 42, the roller brush 72) and the suction device 44 may be moved in the opposing direction.

[Example 1]

1) The spacer paper 11 made of virgin pulp is used, and the surface of the spacer paper 11 is cleaned by the cleaning device 40 shown in Fig. 3 to remove the foreign matter 45 existing on the front and back sides. As the disc brush 42 of the cleaning device 40, a disc brush made of nylon, having a wire diameter of 0.07 mm and a hair length of 10 mm was used. At this time, the surface pressure of the disk brush 42 with respect to the spacer paper 11 was set to 0.3 kPa.

2) The cleaned surface of the spacer paper 11 was brought into contact with the surface of the glass plate G of 370 mm × 470 mm in length (the functional layer forming surface for an electronic device), and a surface pressure corresponding to 2 kPa was applied to press the both.

3) In the above-mentioned pressure bonding state, it was stored in an environment of a temperature of 40 degrees and a humidity of 25% for 12 hours, and thereafter, the spacer paper 11 was peeled off from the surface of the glass plate, and the number of foreign matter from the spacer paper 11 adhering to the surface was confirmed. As a result, it was measured by a commercially available microparticle measuring machine (HS730, manufactured by Toray Engineering Co., Ltd., Japan).

On the other hand, in the case where the cleaning paper or the spacer paper made of the original pulp is not subjected to cleaning, the number of foreign matter adhering to the surface of the glass plate is about 5,500.

Therefore, it is confirmed that the number of foreign matter adhering to the surface of the glass sheet G is greatly reduced by using the spacer paper 11 to be cleaned.

[Embodiment 2]

1) The spacer paper 11 made of virgin pulp is used, and the surface of the spacer paper 11 is cleaned by the cleaning device 70 shown in Fig. 4 to remove the foreign matter 45 existing on the front and back sides. As the roller brush 72 of the cleaning device 70, a roller brush made of nylon, having a wire diameter of 0.07 mm and a hair length of 20 mm was used. At this time, the surface pressure of the roller brush 72 with respect to the spacer paper 11 was set to 0.2 kPa. The traveling speed of the spacer paper 11 is set to be the same speed as the cleaning device 40 of FIG.

2) The cleaned surface of the spacer paper 11 was brought into contact with the surface of the glass plate G of 370 mm long by 470 mm (the functional layer forming surface for an electronic device), and a surface pressure corresponding to 2 kPa was applied to press the both.

3) In the above-mentioned pressure bonding state, it was stored in an environment of a temperature of 40 degrees and a humidity of 25% for 12 hours, and thereafter, the spacer paper 11 was peeled off from the surface of the glass plate, and the number of foreign matter from the spacer paper 11 adhering to the surface was confirmed. As a result, it was about 4,000 after the measurement by the above-mentioned particle measuring machine.

Therefore, it is confirmed that the number of foreign matter adhering to the surface of the glass sheet G is greatly reduced by using the spacer paper 11 to be cleaned.

[Example 3]

1) Using a spacer paper made of virgin pulp (kirari-DII manufactured by Changliang Paper Co., Ltd.), the amount of dust generated by the spacer paper before and after the cleaning treatment was measured. The cleaning treatment was the same as in Example 1.

2) The amount of dust generated is determined as follows. Two pieces of A4 size spacer paper were cut out, and the cut-out spacer paper was overlapped and rubbed with both hands in a cube of 305×305×305 mm in a dust-free room of 10,000 grades. The mutual friction was performed 10 times at a speed of 1 round trip/sec, and the number of foreign particles having a particle diameter of 0.5 μm or more in the cube at this time was measured by a particle counter.

3) As a result, the amount of dust generated by the spacer paper before the cleaning treatment was 16,200. In contrast, the amount of dust generated after the cleaning treatment was 9,200.

Therefore, the amount of dust generated by the cleaning process is greatly reduced.

This application is based on the Japanese Patent Application No. 2014- applied for on May 19, 2014. This is incorporated herein by reference.

11‧‧‧ spacer paper

40‧‧‧ cleaning device

42‧‧‧Disc brush

44‧‧‧Attraction device (attraction mechanism)

45‧‧‧ Foreign objects

46‧‧‧ Spacer supply device

48‧‧‧Interval paper take-up device

50‧‧‧ spaced paper travel path

52‧‧‧Rolling shaft

54‧‧‧Motor

56‧‧‧Winding shaft

58‧‧‧Motor

60‧‧‧ motor

62‧‧‧ frame

64‧‧‧Attraction pump

66‧‧‧ attracting mouth

B‧‧‧ arrow

Length of L1‧‧‧ frame

P1‧‧‧ rotating shaft of disc brush

W‧‧‧ Width of spacer paper

Claims (15)

A cleaning device for spacers for glass sheets, which is used for cleaning a spacer paper interposed between respective glass sheets of a plurality of glass sheets, and comprising: a brush mechanism abutting at least one of a front side and a back side of the spacer paper And a suction mechanism that sucks and removes the foreign matter picked up by the brush mechanism from the spacer paper. The apparatus for cleaning a glass sheet for a glass sheet according to claim 1, wherein the surface pressure of the brush mechanism with respect to the spacer paper is 0.1 kPa or more and 1.0 kPa or less. The cleaning device for a glass sheet spacer according to claim 1 or 2, comprising: a spacer paper supply mechanism that feeds the spacer paper wound into a roll shape in a roll shape; and a spacer paper take-up mechanism that The strip-shaped spacer paper fed from the spacer paper supply mechanism is wound into a roll shape; and the brush mechanism and the suction mechanism are disposed in a space between the spacer paper supply mechanism and the spacer paper take-up mechanism on. The cleaning device for a spacer for a glass sheet according to any one of claims 1 to 3, wherein the brush mechanism has a rotating disc brush having a rotation axis perpendicular to one side of the spacer paper, or has a spacer paper for the spacer paper One of the faces is a rotating roller brush of a rotating shaft in a parallel direction. A method for cleaning a spacer for a glass sheet, which is obtained by rubbing at least one of a front side and a back side of the spacer paper with a brush mechanism for a spacer paper interposed between the glass sheets of the plurality of glass sheets The foreign matter present on the surface layer of the one surface is removed by the suction mechanism by the suction mechanism. The method for cleaning a spacer for a glass sheet according to claim 5, wherein the surface pressure of the brush mechanism with respect to the spacer is 0.1 kPa or more and 1.0 kPa or less. The method for cleaning a spacer for a glass sheet according to claim 5, wherein one of the spacer sheets wound in a roll shape is fed by a spacer paper supply mechanism, and the strip is wound by a spacer paper take-up mechanism The spacer paper is taken up in a roll shape, and is self-contained by the brush mechanism and the suction mechanism disposed on the paper travel path between the spacer paper supply mechanism and the spacer paper take-up mechanism. The spacer paper removes the foreign matter described above. The method for cleaning a spacer for a glass sheet according to any one of claims 5 to 7, wherein the brush mechanism is a disc brush or a roller brush. The method for cleaning a spacer for a glass sheet according to any one of claims 5 to 8, wherein the spacer paper is made of virgin pulp. A glass sheet laminate which is disposed between a plurality of glass sheets of a plurality of glass sheets by removing a foreign matter by a cleaning method for a glass sheet with a spacer paper according to any one of claims 5 to 9. to make. A glass plate package body obtained by binding a glass plate laminate according to claim 10 to a bundle container. A method of producing a spacer for a glass sheet, comprising the step of removing foreign matter by a cleaning method for a glass sheet with a spacer according to any one of claims 5 to 9. A spacer for paper glass, which is interposed between each glass plate of a plurality of glass plates, and in the clean room of 10000 class, the A4 size of the spacer paper is overlapped and rubbed at a speed of 1 round trip/sec. The amount of dust generated in the time (the number of foreign matter of 0.5 μm or more in the cube of 1 ft ³ ) is 10,000 or less. A spacer for a glass sheet according to claim 13, wherein the spacer paper is made of virgin pulp. The spacer for a glass plate according to claim 13 or 14, wherein the content of the organic compound is 0.08% by mass or less.