JP2007075779A - Method and apparatus for drying sheet-like object and method and apparatus for cleaning sheet-like object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the yield of a dried or cleaned sheet-like object at a drying or cleaning step by more surely separating sheet-like objects one by one when the solvent-applied sheet-like object is dried or the sheet-like object is cleaned. <P>SOLUTION: The sheet-like object is dried or cleaned to remove foreign matter by blowing a gas and making the blown gas pass through a gap between the adjacent sheet-like objects while reciprocating a gas blowing nozzle along the direction of arranging the sheet-like objects in parallel within a predetermined range to be decided according to characteristics of the sheet-like object, when blowing the gas in the area distributed from the vertical direction to the direction inclined toward the direction of a plurality of the arranged sheet-like objects in parallel at the end of each of the plurality of the sheet-like objects arranged in parallel at a predetermined angle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drying method and drying apparatus for sheet-like materials such as plastic film, paper, liquid crystal and plasma displays, and so-called flat display-related components, and a cleaning method and apparatus for sheet-like materials.

  After applying a solvent or the like to a plastic film, paper, and a sheet-like material such as a so-called flat display-related component such as a liquid crystal display and a plasma display, the solvent remaining on the sheet-like material is evaporated to dry the sheet-like material. In order to remove the residual solvent from the continuous sheet after coating, various sheet-like drying methods and drying apparatuses have been conventionally used.

  A so-called roll-to-roll drying device 200 as shown in FIG. 12 is used as a method for drying a sheet-like material for removing the solvent remaining on the sheet-like material after applying the solvent to the sheet-like material. The method to use is mentioned. In the roll-to-roll drying apparatus 200, a continuous sheet-like material 201 is heated simultaneously with being conveyed through a heating apparatus 203 such as an oven using a large number of rolls 202. As a result, the solvent remaining on the sheet-like material 201 can be evaporated while the sheet-like material 201 is dried while being transported to a large number of rolls 202 in a heating device 203 such as an oven. And the dried sheet-like object 201 is continuously wound up again.

  In this apparatus, since the drying area of the object to be processed is the rate-decreasing drying area, it is necessary to dry and heat for a long time. For this reason, if the conveying speed of the continuous sheet is increased in order to increase the processing amount, the path length of the continuous sheet in the roll-to-roll drying apparatus becomes long, and the drying apparatus itself becomes long. For example, if the continuous sheet transport speed is 3 m / min and the processing time is 120 minutes, the path length of the continuous sheet in the drying device will be very long at 360 m or more, which requires a large installation space and high equipment costs. There was a problem. In addition, since the apparatus is large, a large cost and a working environment space are required for remodeling the equipment to further increase the processing capacity in order to meet the required processing amount.

  In addition, as shown in FIG. 13, some rolls 101 are put in a temperature-controlled room, an oven or the like and dried to a desired residual solvent. In this case, since it is a roll-shaped winding, it takes time until the winding core is heated to a predetermined temperature, and the sheet is almost in close contact, so the flow of airflow on the sheet surface is small. Processing must take a long time before the residual solvent is removed.

  Therefore, when obtaining a finally dried sheet-like material, instead of drying the continuous sheet-like material as described above, the continuous sheet-like material is cut and a plurality of single-wafer sheets having a desired shape and size are obtained. There is a method in which a single sheet is placed on a shelf of a drying stacker having a number of shelves, and then placed in a temperature-controlled room, oven, or the like. For example, as shown in FIG. 14, a stacker 302 for drying a sheet-like material having a large number of shelves is prepared, and a single sheet-like material 301 is arranged on each of the shelves of such a stacker 302 to form a sheet-like material. The stacker 302 having the objects 301 placed on the shelves is placed in a temperature-controlled room and a heating device 303 such as an oven to dry the plurality of sheet-like objects 301.

  Further, as shown in FIG. 15, a belt conveyor 403 provided with a large number of separation members 402 for separating a large number of sheet-like objects 401 is used with a device provided in a heating device 404 such as a temperature-controlled room and an oven, There is also a method of drying a plurality of sheet-like objects 401. That is, in the apparatus shown in FIG. 15, one sheet-like material 401 is placed at an interval between separation members 402 provided on the belt conveyor 403, the belt conveyor 403 is operated to convey the sheet-like material 401, Heating is performed by a heating device 404 such as an oven.

  However, in the drying method using the stacker 302 as shown in FIG. 14 or the belt conveyor 403 provided with the separation member 402 as shown in FIG. 15, a plurality of sheet-like objects 301 arranged on the shelf of the stacker 302 or the separation member 402. , 401 has a large gap (interval) between the sheets of at least 10 mm to about 25 mm, so that in the case of the residual solvent removal processing of a large number of single-sheet sheets, the solvent remaining on the surfaces of the sheet-like objects 301 and 401 is removed. In some cases, large heating devices 303 and 404 are required. For this reason, at least the space for installing the heating devices 303 and 404 and the equipment cost related to the heating devices 303 and 404 are increased, and the sheet-like materials 301 and 401 are disposed between the shelf of the stacker 302 or the separation member 402 of the belt conveyor 403. The number of man-hours to be removed becomes enormous.

  In addition, a sheet-fed printing ink set-off prevention device as shown in FIG. 16 is disclosed as a prior art relating to a method for drying a plurality of sheet-like materials (see Patent Document 1). This sheet-fed printing ink set-off prevention apparatus uses a method of drying a paper (print book) to which a plurality of stacked inks are attached as a plurality of sheets, and specifically, a sheet-fed printing. An air nozzle is provided to blow air from the lateral direction of the booklet stacked on the paper discharge tray of the machine. The ink printed on the paper is dried by the air blown from the air nozzle to the printing book, and these air nozzles may be either fixed type or movable type.

  However, in the above-described sheet-fed printing ink set-off prevention device, a plurality of sheet-like objects are stacked and dried. Here, when the number of sheet-like materials to be dried becomes large, the sheet-like materials in the lower part of the plurality of stacked sheet-like materials are subjected to pressure due to the weight of the upper sheet-like material. Therefore, it becomes difficult to widen the interval between the sheet-like objects at the lower part of the stacked sheet-like objects with the air blown from the air nozzle. It cannot be dried efficiently. That is, when an apparatus such as the above-described sheet-fed printing ink ink transfer prevention apparatus is used, it is difficult to uniformly dry a large number of sheet-like materials.

  Further, a dust removal method as shown in FIG. 17 is disclosed as a conventional technique related to a method for cleaning a plurality of sheet-like objects (see Patent Document 2). In this dust removal method, dust attached to a plurality of sheet-like prepregs as a plurality of sheet-like objects is removed, and the surfaces of the plurality of sheet-like prepregs are washed. Specifically, a plurality of sheet-like prepregs are overlapped to form a prepreg bundle, and the prepreg bundle is sandwiched and rotated, and dust adhering to the sheet-like prepreg is scattered around by centrifugal force.

  However, in the method of forming and rotating a bundle of a plurality of sheet-like materials as in the dust removing method described above, a sheet-like portion is sandwiched between the plurality of sheet-like material bundles. The space between the plurality of sheet-like objects cannot be widened by receiving pressure from sandwiching the objects. For this reason, in a portion that holds a bundle of a plurality of sheet-like objects, dust or dust is also held between the plurality of sheet-like objects, and a plurality of dusts or dust remaining on the surfaces of the plurality of sheet-like objects are removed. It is difficult to remove the entire surface of the sheet.

JP-A-6-143541 (Claim 1, paragraphs [0011] and [0012], FIG. 2 etc.) JP-A-10-291213 (Claim 1 etc.)

  1-3, FIG. 6 to FIG. 8 and FIG. 10, as shown in FIG. 1 to FIG. 3, FIG. 10, and FIG. The present inventors have newly invented and filed a drying method, a drying device, a sheet cleaning method, and a cleaning device after application of the sheet-like material (Japanese Patent Application No. 2004-142710; foreign matter removal treatment). (In the following, the previous proposal will be described). It should be noted that the technology / apparatus according to the invention of the present application in the previous proposal includes the same configuration, and will be described in detail later as an embodiment, so that the description thereof is omitted here.

  The previous proposed device has both a small installation space and equipment cost, requires a small number of man-hours for loading and unloading sheet-like materials, makes it possible to uniformly dry a large number of sheet-like materials, and the surface of a plurality of sheet-like materials. Although it is possible to remove the dust or dust remaining on the entire surface of the plurality of sheet-like materials, the following problems remain.

  In general, in a drying method after applying a sheet-like material, a drying device and a cleaning method for a sheet-like material, and a cleaning device, the sheet-like material is squeezed one by one by the motion of gas during drying and washing. However, it is necessary to ensure that each sheet is uniformly dried or washed. However, in reality, the sheets may not be ordered regularly one by one, which causes variations in drying and cleaning quality. This may cause a decrease in the yield of the drying process and the cleaning process, and improvement of this point has been desired even in the previous proposal.

  The present invention has been made to solve the above-mentioned problems, and in the drying after the application of the sheet-like material and the washing of the sheet-like material, the sheet-like material is more reliably squeezed one by one, so that the drying process and the washing process are performed. A drying method and a drying device after applying a sheet-like material such as plastic film, paper, liquid crystal and plasma display, etc., a drying device, and a cleaning method and a cleaning device for the sheet-like material, which can further improve the yield of It was made for the purpose of providing.

  In order to solve the problem, the drying method according to claim 1 is characterized in that gas is sprayed onto a plurality of sheet-like objects juxtaposed at an angle of 0 degree or more and less than 90 degrees from the vertical direction while being in contact with each other in the thickness direction. The sheet-like material is dried by allowing gas to pass through the gaps between the sheet-like materials so as to be separated from each other, and the sheet-like material is dried vertically at the end portions of the plurality of sheet-like materials. When the gas is blown to a region distributed in a direction inclined with respect to the direction in which the plurality of sheet-like objects are juxtaposed from the direction, a predetermined reciprocation is determined according to the characteristics of the sheet-like material. It sprays, reciprocating along the direction in which the sheet-like object was juxtaposed within the movement range.

  The drying method according to claim 2 is the method for drying a sheet-like object according to claim 1, wherein the two outermost moving portions respectively corresponding to the innermost portions at both outermost end positions in the moving range of the gas blowing nozzle port. Deviation of ± 4 mm with respect to the end vertical line positions (P1 ′, P2 ′) with respect to the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-forms defined by the regulating means along the direction in which the sheet-forms are juxtaposed The gas is blown while reciprocating the gas blowing nozzle so as to coincide with the outermost end vertical line positions (P1, P2) set in (1).

  The drying method according to claim 3 is the method for drying a sheet-like material according to claim 2, wherein the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the regulating means are adjusted and corresponded to this. A range of movement of the gas spray nozzle is set.

  The drying method according to claim 4 is the method for drying a sheet-like material according to claim 3, wherein the interval between the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the regulating means is determined. The thickness is adjusted to a value obtained by multiplying the value obtained by adding 0.25 mm to 0.35 mm to the average gap distance between the sheet-like materials and the number of sheet-like materials.

  The drying apparatus according to claim 5, wherein the sheet is formed by blowing gas to a plurality of sheet-like objects arranged in parallel at an angle of 0 degree or more and less than 90 degrees with respect to the vertical direction in a state of being in contact with each other in the thickness direction. A sheet-like material drying apparatus for drying the plurality of sheet-like materials by passing gas through gaps between the materials, wherein the gas is introduced from a vertical direction at an end of the plurality of sheet-like materials. Drying of a sheet to be sprayed by moving the spray position along the direction in which the plurality of sheets are juxtaposed to a region distributed in a direction inclined with respect to the direction in which the plurality of sheets are juxtaposed The apparatus is characterized in that the gas blowing region is reciprocated within a predetermined range, and the reciprocating range can be freely adjusted.

  According to a sixth aspect of the present invention, in the drying apparatus for a sheet-like material according to the fifth aspect, the gas blowing nozzle port is opened in a band shape with an inclination from the vertical direction to the direction in which the plurality of sheet-like materials are juxtaposed. The gas blowing nozzle is located between vertical line positions of ± 4 mm with respect to the vertical line positions corresponding to the positions in the juxtaposed direction of the plurality of sheet-like objects along the direction in which the sheet-like objects are juxtaposed. The gas is blown while reciprocating within the movement range set in (1).

  The drying apparatus according to claim 7 is characterized in that, in the drying apparatus for sheet-like material according to claim 6, the interval between the regulating members that regulate the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials can be freely changed. And

  The drying device according to claim 8 is a sheet-like material drying device according to claim 7, wherein the interval between the regulating members that regulate both end positions of the plurality of sheet-like materials in the juxtaposition direction is set to a sheet-like material thickness. A value obtained by multiplying the average gap distance between the objects by 0.25 mm to 0.35 mm and the number of sheets is obtained.

  And each drying method of the said Claims 1-4 can be used as a washing | cleaning method of a sheet-like thing, and is excellent compared with the former. Accordingly, each of the cleaning methods of claims 9 to 12 of the present application performs the same process as the process described in claims 1 to 4 respectively.

  Moreover, each drying apparatus of the said Claims 5-8 can be used as a washing | cleaning apparatus of a sheet-like thing as it is, and is excellent compared with the past. Accordingly, each of the cleaning devices according to claims 13 to 16 of the present application has exactly the same configuration corresponding to the configurations of claims 5 to 8.

  According to the present invention, a method for drying a plurality of sheet-like materials capable of easily and efficiently drying a plurality of sheet-like materials, and a method for drying a plurality of sheet-like materials having a small installation space and equipment cost. A drying apparatus for a plurality of sheet-like materials can be provided.

  Similarly, according to the present invention, a method for cleaning a plurality of sheet-like materials capable of easily and efficiently washing a plurality of sheet-like materials, and a plurality of sheet-like materials having a small installation space and equipment cost. It is possible to provide a plurality of sheet-like objects for cleaning.

  The configuration and operation of the present invention will be specifically described below with reference to the drawings. The embodiment of the sheet-like material drying apparatus according to the present invention will be described with reference to FIGS. In addition, drying of the surface of a sheet-like object in this specification and a claim means removing the liquid adhering to a sheet-like object. The kind of the liquid adhering to the sheet-like material is not particularly limited as long as it can be evaporated, and is an aqueous and / or oily liquid such as a solvent.

  This drying device can also be used as it is as a sheet-like material cleaning device (solid foreign matter removing device) of the present invention. The cleaning of the surface of the sheet-like material in the present specification and the claims means that the solid adhered to the sheet-like material is removed. The kind of the solid adhered to the sheet-like material is not particularly limited as long as it is a solid that can be removed, and is a solid such as dust and dust. Furthermore, the drying device can be a foreign material removing device for a plurality of sheet materials when the foreign material adhering to the surface of the sheet material is a liquid. In addition, the drying device (cleaning device) may be a foreign matter removing device having a cleaning means for cleaning the surface of a plurality of sheet-like materials when the foreign matter attached to the surface of the sheet-like material is a solid. it can. When the foreign matter adhering to the surface of the sheet is both liquid and solid (mixture), after the surface of the sheet is dried and the liquid adhering to the surface of the sheet is removed The surface of the sheet-like material or the like may be washed to remove the solid remaining on the surface of the sheet-like material.

  An overall perspective view of an embodiment of a sheet drying apparatus according to the present invention is shown in FIG. As schematically shown in a perspective view in FIG. 2, the drying apparatus is configured to form a plurality of sheets by blowing gas as indicated by arrows to at least a plurality of sheets 11 arranged in contact with each other. A plurality of unit units including a drying means 21 that can separate the objects 11 and allow gas to pass through the gaps between the plurality of sheet-like objects 11 are provided. This type of drying apparatus preferably includes a heat insulating chamber including a drying unit, and the drying apparatus illustrated in FIG. 1 also includes a drying unit 21 and a heat insulating chamber 31 including a plurality of sheet-like objects 11.

  Thus, since the sheet-like material drying apparatus further includes a heat insulating chamber including a drying means, both the plurality of sheet-like materials and the drying means can be placed in the heat insulating chamber. Here, the temperature of the gas flowing out from the drying means is cooled for a predetermined time in the heat insulating chamber, and the gas having a temperature lower than the predetermined temperature is reduced from passing through the gaps between the plurality of sheet-like objects, It is possible to keep the temperature of the gas flowing out from the drying means and the temperature of the gas passing through the gaps between the plurality of sheet-like materials (that is, the ambient temperature of the plurality of sheet-like materials). Thereby, the gas of a substantially constant temperature can be sprayed on several sheet-like objects, and can be passed through the gap | interval of several sheet-like objects. As the temperature of the gas passing through the gaps between the plurality of sheet-like materials is higher, the time for drying the surfaces of the plurality of sheet-like materials can be shortened, and the drying efficiency on the surfaces of the plurality of sheet-like materials is reduced. Can be increased. However, when the temperature of the gas passing through the gaps between the plurality of sheet-like materials is too high, the sheet-like materials may be deteriorated or altered. As described above, the sheet-like material drying apparatus has the heat insulation chamber, thereby reducing the efficiency of drying the surfaces of the plurality of sheet-like materials due to the decrease in the temperature of the gas passing through the gaps between the plurality of sheet-like materials. Can be reduced.

  FIG. 3 is an explanatory view of the unit unit as seen from the side, FIG. 4 is a view of the sheet-like material cassette side plate 42 and the sheet-like material 11 accommodated therein as seen from the end surface side, and FIG. It is principal part explanatory drawing explaining the positional relationship (attitude | position) of the dry air nozzle 22 and the sheet-like material 11 which are.

  The sheet-like material to which the drying apparatus and the drying method according to the present invention are applied can have a shape, size, and the like, as long as the gas can pass through the gap in accordance with the so-called Bernoulli theorem, which will be described later. And the material is not particularly limited. The sheet-like material is formed of various materials such as plastic and paper. Examples of the sheet-like material include a plastic film such as a silver salt X-ray film, and a thermal paper provided with a thermal coloring layer on paper. Examples include sheet materials related to printing paper, liquid crystal, or plasma display. However, it is preferable that the plurality of sheet-like materials have substantially the same shape. If the shape of the plurality of sheets is substantially the same, the gas passing between the sheets will generate substantially the same flow, and the passage of the gas according to Bernoulli's theorem is realized. Is easy. Moreover, in order to allow gas to pass through the gaps between the plurality of sheet-like objects, the sheet-like object has a substantially flat shape (regardless of the shape of the contour), particularly a sheet-like sheet material. Is preferred.

  The plurality of sheet-like materials in the above case are juxtaposed in contact with each other. Here, in the present specification and the claims, “arranged in contact with each other” means that for each of a plurality of sheet-like materials, at least one surface of the certain sheet-like material is the surface or those surfaces. It means that at least a part of the surface of the sheet-like material adjacent to the side is in contact, and a plurality of sheet-like materials are placed side by side. Further, each of the plurality of sheet-like objects may be juxtaposed in contact with each other, but preferably each of the plurality of sheet-like objects is independently at an angle of 0 degree or more and less than 90 degrees from the vertical direction. Arranged to stand upright or tilt. Note that the sheet-like object in the present specification and claims stands upright or tilts at an angle of 0 degree or more and less than 90 degrees from the vertical direction, stands upright at an angle of 0 degree from the vertical direction, or 0 degree from the vertical direction. Means to tilt at an angle of less than 90 degrees. More specifically, standing upright at an angle of 0 degrees from the vertical direction means that the normal direction of the surface of the sheet-like object is perpendicular to the vertical direction, exceeding 0 degrees and less than 90 degrees from the vertical direction. Inclining at an angle of means that the normal direction of the surface of the sheet-like material is between the vertical direction and the direction perpendicular to the vertical direction. As described above, the action of gravity acting on the plurality of sheet-like objects reduces the adhesion of the plurality of sheet-like objects to each other, so that the gas can easily pass through the gaps between the plurality of sheet-like objects. The plurality of sheet-like objects are preferably not inclined at an angle of 90 degrees from the vertical direction, that is, not arranged horizontally, but arranged upright or inclined.

  Further, since it is not preferable that the plurality of sheet-like materials adhere to each other due to the weight of the plurality of sheet-like materials, the plurality of sheet-like materials are preferably juxtaposed upright at an angle of approximately 0 degrees from the vertical direction. . Moreover, you may arrange | position the several sheet-like thing arranged in contact with each other in the shape of a straight line or a curve. Here, it is preferable that the plurality of sheet-like objects arranged in contact with each other are arranged linearly. When a plurality of sheet-like objects are arranged linearly in this way, it is easy to blow gas onto the ends of the plurality of sheet-like objects. In the previous proposal, a circular arrangement such as a closed curve is also used.

  Moreover, in order to arrange | position a some sheet-like thing linearly, you may use the frame (cassette) which can arrange all or some of a some sheet-like thing collectively. The frame includes a portion that supports lower end portions of the plurality of sheet-like materials, and a portion that supports the end-most sheet-like material (cassette side plate) among the plurality of juxtaposed sheet-like materials. Also good. These portions of the frame may be flat plates or may have a fence-like shape through which gas can pass. The rear end portion of the sheet-like material is supported by the sheet-like material stopper and the position is regulated.

  The plurality of sheet-like objects having substantially the same shape are preferably aligned with each other. However, it is not necessary to position each of the plurality of sheet-like objects at specific positions. When a plurality of sheet-like materials are aligned, gas passes relatively uniformly through the gaps between the plurality of sheet-like materials, so that the intervals between the sheet-like materials are relatively widened (separated). be able to. As a result, the surfaces of a plurality of sheet-like materials can be dried relatively uniformly.

  In the present embodiment, as shown in FIG. 4, the interval W (cassette) in the direction in which the plurality of sheet-like objects are juxtaposed, of the sheet-like cassette side plate 42 for juxtaposing the plurality of sheet-like objects and restricting positioning. The distance between the side plates 42 can be freely changed (features of claim 3 and others).

  In order to change the interval W, the side plate 42 is moved. In this case, the movable side plate 42 may be either or both of the two side plates of the sheet-like material cassette 41 in which the sheet-like materials are juxtaposed. An appropriate mechanism such as a guide rail is used for the guide when moving the side plate 42, and the position fixing method may be any combination of a long hole and a bolt, a slide screw mechanism, or the like.

  By making the interval W between the side plates 42 variable in this way, even if there is a slight difference in rigidity of each sheet-like material, a difference in the cut surface shape of the sheet end surface, and a variation in gas flow, Since the interval in the direction in which the objects are juxtaposed can be optimized, the plurality of sheet-like objects can be ordered regularly one by one.

  At this time, as shown in FIG. 4, the plurality of sheet-like objects are juxtaposed, and the interval W in the direction in which the plurality of sheet-like substances to be positioned is juxtaposed is about 0.05 mm to 0.5 mm in the processing film thickness. More preferably, the value obtained by multiplying the value obtained by adding 0.25 mm to 0.35 mm to the number of processed sheets (features of claim 4) is a slight difference in rigidity of each sheet-like material, and the sheet end face Even if there are differences in the shape of the cut surfaces and variations in gas flow, it is possible to optimize the interval in the direction in which the plurality of sheet-like materials are juxtaposed, and the plurality of sheet-like materials are ordered one by one regularly. Is possible and preferable. In addition, although the juxtaposed number is assumed to be a fixed number, even if the juxtaposed number itself is changed, it can be dealt with by adjusting the interval W.

  The type of gas that sprays on a plurality of sheet-like materials placed in contact with each other to separate the plurality of sheet-like materials and passes through the gaps between the plurality of sheet-like materials is chemically changed at the temperature at which the gas is used. The air is not particularly limited as long as it does not cause a physical reaction, but usually readily available (dry) air is used.

  As described above, the drying means 21 in the sheet-like material drying apparatus according to the present invention separates the plurality of sheet-like materials by blowing gas onto the plurality of sheet-like materials 11 arranged in contact with each other and plurally. There is no particular limitation as long as gas can pass through the gap between the sheet-like materials. As such a drying means, for example, as shown in FIG. 2, a drying means 21 having a drying air nozzle 22 as a single outlet that can flow out air as a gas in a specific direction can be mentioned. . The drying means shown in FIG. 2 sucks air from the air inlet (s) provided behind the drying means and causes the air to flow out from the drying air nozzle 22. In FIG. 2, air flowing out from the nozzles 22 of the drying means 21 is blown toward the ends of the plurality of sheet-like objects 11 arranged in contact with each other, and the plurality of sheet-like objects 11 are separated and plural. Air is passed through the gaps between the sheet-like materials 11 to dry the surfaces of the plurality of sheet-like materials 11.

  In the sheet-like material drying method and drying apparatus according to the present invention, the gas that is blown onto the plurality of sheet-like materials and passes through the gaps between the plurality of sheet-like materials is preferably a direction in which the plurality of sheet-like materials are juxtaposed. The sheet is sprayed on the plurality of sheet-like objects in the direction perpendicular to the direction excluding the vertical direction and passes through the gaps of the plurality of sheet-like objects. In other words, the sheet passes through the gaps of the plurality of sheet-like objects in a direction inclined by a certain angle from the vertical direction to a direction perpendicular to the vertical direction and the direction in which the plurality of sheet-like objects are juxtaposed. Here, the certain angle is an angle that is appropriately determined according to various conditions in the drying method and drying apparatus of the sheet-like material, and is an angle that is greater than 0 degrees and less than 180 degrees, and its sign (from the vertical direction) The direction of the inclination) may be either positive or negative (any direction may be used). Further, this angle may be constant or varied in the step of drying the sheet-like material.

  In this embodiment, in the sheet drying apparatus / method (or sheet cleaning apparatus / method) of FIG. 3, FIG. As shown in the explanatory diagram of FIG. 7, the air flowing out from the nozzle 22 of the drying means 21 is inclined by an angle θ from the vertical direction to the vertical direction and the direction perpendicular to the direction in which the plurality of sheet-like objects are juxtaposed. In the direction, the plurality of sheet-like objects 11 are sprayed and passed through the gaps of the plurality of sheet-like objects 11.

  In this way, the gas that is blown onto the plurality of sheet-like objects and passes through the gaps between the plurality of sheet-like objects is in a direction perpendicular to the direction in which the plurality of sheet-like objects are juxtaposed and excluding the vertical direction. The gas is blown to the plurality of sheet-like materials and passes through the gaps of the plurality of sheet-like materials, so that the gas is not obstructed by a member of a drying apparatus such as a support that supports the plurality of sheet-like materials. Can be sprayed onto a plurality of sheet-like materials and passed through the gaps between the plurality of sheet-like materials. For example, when the drying apparatus has a support that supports a plurality of sheets, the gas is blown onto the plurality of sheets so that the gas does not hit the support, and the gaps between the plurality of sheets are Can be passed. As a result, the surface of the sheet-like material can be dried more efficiently.

  Here, the direction perpendicular to the direction in which the plurality of sheet-like objects are juxtaposed and excluding the vertical direction is preferably substantially perpendicular to both the direction in which the plurality of sheet-like objects are juxtaposed and the vertical direction. Direction. Note that “substantially vertical” in the present specification and claims includes a state that can be regarded as complete vertical and vertical. In other words, the inclination angle from the vertical direction to the direction perpendicular to the vertical direction and the direction in which the plurality of sheet-like objects are juxtaposed is preferably substantially a right angle. In addition, the substantially right angle in this specification and the claim includes an angle that can be regarded as a complete right angle and a right angle.

  In this way, a plurality of gases that are blown onto the plurality of sheet-like objects and pass through the gaps between the plurality of sheet-like objects are arranged in a direction substantially perpendicular to both the direction in which the plurality of sheet-like objects are juxtaposed and the vertical direction. When a support body that supports the plurality of sheet-like materials is provided on the lower side of the plurality of sheet-like materials by spraying on the sheet-like material and passing through the gaps of the plurality of sheet-like materials, gas is supplied. It is possible to pass between sheets without spraying on the support in the direction along the support. As a result, when the support is provided below the plurality of sheet-like materials, the surface of the sheet-like material can be dried more efficiently.

  In the sheet-like material drying method and drying apparatus according to the present invention, the gas passing through the gaps between the plurality of sheet-like materials is preferably such that the region where the gas is blown onto the plurality of sheet-like materials has a longitudinal axis. Then, the longitudinal axis is sprayed onto the end portions of the plurality of sheet-like objects so as to be inclined at a certain angle from the vertical direction to the direction in which the plurality of sheet-like objects are juxtaposed. Further, this angle may be constant or varied in the step of drying the sheet-like material.

  FIG. 8 is a view for explaining the blowing direction of the gas blown to the ends of the plurality of sheet-like materials in the sheet-like material drying method or the sheet-like material washing method according to the present invention.

  In the drying apparatus of the present embodiment, as shown in FIG. 8, the drying air blowing nozzles 22 in each unit unit have a sufficiently large predetermined inclination φ with respect to the plurality of sheet-like objects 11 (nozzle inclination angle). . That is, as shown in FIG. 8, the air flowing out from the nozzle 22 of the drying means 21 is inclined by an angle φ from the vertical direction to the direction in which the plurality of sheet-like objects are juxtaposed, and Spray on the edge. Incidentally, if the inclination φ of the drying air blowing nozzle 2 is too small, the plurality of sheet-like objects 11 are overlapped by two or more sheets by the force of the drying air and moved in the stacking direction 20 of the plurality of sheet-like objects 11. In some cases, it is impossible to raise the temperature of each sheet-like material 11 to a predetermined temperature with certainty, resulting in variations in drying or residual solvent removal quality. In the present invention, the inclination is sufficient to prevent such a situation.

  As described above, the region that blows the gas that passes through the gaps between the plurality of sheet-like objects to the plurality of sheet-like objects has a longitudinal axis, and the longitudinal axis is a plurality of sheets from the vertical direction. When the gas is blown to the end portions of the plurality of sheet-like objects by spraying on the end portions of the plurality of sheet-like objects, so as to be inclined by a certain angle φ in the direction in which the shapes are juxtaposed, The gas can be passed through the gaps between the plurality of sheet-like objects without two or more sheet-like objects overlapping each other. As a result, the surfaces of the plurality of sheet-like materials can be evenly dried among the plurality of sheet-like materials. Here, the above-mentioned certain angle depends on various factors such as the material and shape of the sheet-like material, but in order to reduce the overlap of two or more sheet-like materials, it is preferably 0.7 degrees. More preferably, it is 1.0 degree or more, and preferably 15 degrees or less, more preferably 10 degrees or less in order to prevent frequent contact (flapping) between adjacent sheet-like materials.

  On the other hand, when the gas passing through the gaps between the plurality of sheet-like materials is blown to the end portions of the plurality of sheet-like materials with the longitudinal axis of the region in which the gas is blown to the plurality of sheet-like materials being vertical. If the above angle is too small (generally less than 0.7 degrees), the gas passes only through the gap between two or more adjacent sheets, and the two or more adjacent sheets Only the pressure in the gap is reduced. As a result, the two or more adjacent sheet-like objects overlap each other. And the adjacent sheet-like object which overlapped mutually moves to the direction where the several sheet-like object was juxtaposed, when gas passes the circumference | surroundings. In this case, drying is insufficient on the surface where the adjacent sheet-like materials contact each other in the sheet-like materials overlapping each other. As a result, the surface or the like of each sheet-like material cannot be reliably dried, and variations may occur with respect to drying on the surface or the like of a plurality of sheet-like materials.

  Further, when the above-mentioned certain angle is too large (approximately more than 15 degrees), in the gap between a pair of sheet-like objects around in the direction in which a plurality of sheet-like objects are juxtaposed, two of them Gas will pass through the relatively upper or lower part of the gap between the pair of sheets, and the pressure in the upper or lower part of the gap will decrease. As a result, the upper or lower part of the pair of sheets in the vicinity frequently contacts, and depending on the material of the sheet, the upper or lower part of the pair of sheets in the periphery Scratches may be formed. In addition, when the above-mentioned certain angle is larger (approximately several tens of degrees or more), a plurality of sheet-like objects in the direction in which the plurality of sheet-like objects are arranged side by side, In some cases, the gas does not pass through the upper and lower portions of the gap between the sheet-like materials. In this case, the drying on the surfaces near the upper and lower portions of the plurality of sheet-like materials arranged in contact with each other is insufficient. That is, since the gas does not uniformly pass through the gaps between the plurality of sheet-like materials, it becomes difficult to uniformly dry the surfaces of the plurality of sheet-like materials.

  As described above, the drying wind spray nozzle 2 has an appropriate predetermined inclination φ with respect to the plurality of sheet-like materials 11, so that the variation in quality between the plurality of sheet-like materials 11 is less likely to occur, or Although it is possible to remove the residual solvent, the sheet materials are regularly ordered one by one due to the slight difference in rigidity of each sheet material, the difference in the shape of the cut surface of the sheet end surface, and the variation in gas flow. May not be sown and may vary in dry quality. This may cause a decrease in the yield of the drying process.

  Therefore, in the present invention, in addition to the above-described configuration equivalent to the previous proposal, a large amount of sheet-like material is obtained at a time by reciprocating the drying air blowing nozzle 22 of the drying means in the generally overlapping direction of the plurality of sheet-like materials 11. When processing No. 11, it is possible to always give dry air between the respective sheet-like materials. That is, in the present invention, as shown in FIG. 2 and FIG. 5, the gas blowing nozzle 22 has a plurality of sheet shapes within the ST range (reciprocating movement range; effective movement range, effective movement range). It reciprocates along the direction in which the objects are juxtaposed. Then, by adjusting the reciprocating range (returned to the moving end position) in accordance with the characteristics of each sheet-like material, the sheet-like materials can be ordered regularly one by one.

  The gas blowing nozzle that reciprocates in the juxtaposed direction of the sheet-like object opens in a strip shape from the vertical direction in a direction in which the plurality of sheet-like objects are juxtaposed (gas blowing nozzle port). FIG. 5 shows a state where the gas blowing nozzle 22 (shown by the nozzle opening) moves in the right direction in the drawing, and the gas blowing nozzle 22 at the left moving end position (moving range outermost end position) is shown. −1, the central position is 22-2 in order, and the gas blowing nozzle at the right moving end position (moving range outermost end position) is 22-3, and the positional relationship is shown. In FIG. 5, for the sake of explanation, some dimensions are exaggerated and schematically shown.

  In the present embodiment, the sheet-like object is juxtaposed with the two movement outermost end vertical line positions (P1 ′, P2 ′) respectively corresponding to the innermost portions in the outermost end positions of the gas blowing nozzle port. Along the determined direction, the outermost vertical line positions (P1, P2) set with a deviation of ± 4 mm with respect to the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the restricting means are respectively matched. Thus, the gas is sprayed while reciprocating the gas spray nozzle.

  As shown in FIG. 5, the sheet-like object 11 is accommodated in a gap (dimension W) defined by a cassette side plate 42 as a restricting means. Vertical lines P1 and P2 indicate the outermost positions (nozzle cassette inner positions) at both ends in the juxtaposition direction of the plurality of sheet-like objects. In FIG. 5, the sheet-like object 11 stands in the vertical direction. Match.

  The range (distance) of the reciprocating motion in which the gas blowing nozzle 22 inclined from the vertical direction to the direction in which the plurality of sheet-like objects are juxtaposed moves along the direction in which the sheet-like objects 11 are juxtaposed is the position inside the nozzle cassette. The right and left ends of the movement position of the nozzle 22 are adjusted according to the respective characteristics of the sheet-like object 11 so as to be distances L1 and L2, respectively, with respect to the vertical lines P1 and P2.

  That is, the range (distance) of the reciprocating motion is set as a value obtained by adding a predetermined amount of difference (L1 + L2) to the distance (W) between the vertical lines P1, P2 of the both end positions of the sheet-like object (position inside the nozzle cassette). The An area between the vertical lines (P1 ′ and P2 ′) having a distance of L1 and L2 with respect to the P1 and P2 positions is an effective movement range (ST) of the gas blowing nozzle 22.

  The distances L1 and L2 can be adjusted within the range of +4 mm to −4 mm according to the characteristics of the sheet-like material. It has been experimentally confirmed that the L1 and L2 values are not necessarily the same value in order to match the respective characteristics of the sheet-like material such as the curl of the sheet. In the figure, L1 and L2 are positive values, but are not limited to this, and are set to appropriate values within a range of ± 4 mm.

  Thus, the reciprocating movement range (effective movement range: ST) of the gas blowing nozzle 22 substantially coincides with the movement outermost vertical line position region (region between P1 ′ and P2 ′) set within a deviation of ± 4 mm. ') Is determined. The effective movement range ST ′ is a region between vertical line positions corresponding to the innermost part in the outermost end position of the movement range of the gas blowing nozzle port. The effective movement range ST ′ is the length of the projection area in the vertical direction of the sheet-like object 11 (in the juxtaposition direction). When the sheet-like objects 11 are inclined and juxtaposed, the effective movement range ST ′ depends on the inclination and height. Change.

  Here, since the gas blowing nozzle port has a certain width and moves in an inclined posture, the distance of actual movement of the gas blowing nozzle (st in FIG. 5) and the substance of the blown gas The target movement range (effective movement range: ST ′) does not exactly match. That is, since the gas blowing nozzle 22 is in an inclined posture, as shown in the figure, in order to ensure the effective movement range ST ′, the actual driving distance st of the gas blowing nozzle 22 is greater than ST ′. Also gets longer. The drive distance st is determined according to the effective movement range ST ′ and the width, length and inclination of the nozzle opening.

  As described above, the gas blowing nozzle port position substantially coincides with the distance W between the vertical line positions P1 and P2 at both end positions in the juxtaposition direction of the sheet-like material of the cassette that defines the juxtaposition position of the plurality of sheet-like materials. By reciprocating within a range ST ′ (effective movement range) (including a deviation of ± 4 mm at both ends), the sheet-like objects can be regularly ordered one by one.

  In this case, the nozzle port reciprocating position adjustment may be performed by a limit switch or a combination of a ball screw and a stepping motor or a servo motor. FIG. 9 is a schematic view showing an example of the nozzle port reciprocating position adjusting mechanism.

  FIG. 9 is a view corresponding to a plan view of FIG. 1 as viewed from above although the number of nozzles, the number of film cassettes, etc. are reduced. The single nozzles 21 are connected by a nozzle fixing plate 32 and are supported by a sliding bearing (not shown) so that reciprocating sliding movement is possible in the nozzle juxtaposition direction. The nozzle fixing plate 32 reciprocates in the nozzle juxtaposition direction by the rotation of the ball screw 33 and the feed mechanism of the ball screw nut 34, and its position changes in proportion to the rotation speed and rotation angle position of the ball screw 33. The moving direction (direction) is determined by the rotating direction of the ball screw 33. In FIG. 9, the ball screw 33 supported by the ball screw bearing 35 has a structure in which a stepping motor 37 rotates through a shaft joint 36. Instead of the ball screw 33, a conventional trapezoidal screw or the like may be used.

  In addition, since the time at which the positions at which the gas is blown at the ends of the plurality of sheet-like objects moves and the speed at which the drying means moves increases, the time during which the gas is blown onto the sheet-like object is shortened. It is possible to reduce frequent contact between a plurality of adjacent sheet-like materials to which is sprayed. However, if the speed at which the gas blowing positions at the ends of the plurality of sheet-like materials move and the speed at which the drying means moves are too large, the gas can sufficiently pass through the gaps between the plurality of sheet-like materials. It becomes difficult, and it becomes difficult to uniformly dry the surface of the sheet-like material.

  In this way, the position at which the gas is blown at the ends of the plurality of sheet-like materials is moved along the direction in which the plurality of sheet-like materials are juxtaposed, or the drying unit is arranged with the plurality of sheet-like materials juxtaposed. By moving along the direction, it becomes possible to spray gas onto a large number of sheet-like objects arranged in contact with each other, and in particular, the sheet-like object of the gas blowing nozzle moves along the arranged direction. Since the range of the reciprocating motion can be adjusted according to the characteristics of the sheet-like material, the gas can be reliably blown over a wider range than the range in which the gas flows out from the drying means. As a result, it is possible to reliably separate a large number of sheet-like materials arranged in contact with each other and to allow gas to pass through the gaps between the many sheet-like materials, and to appropriately dry the surfaces of the many sheet-like materials. be able to.

  Of course, if the sheet-like material drying apparatus according to the present invention as described above is used, a small drying means may be used, so that the equipment cost relating to the sheet-like material drying apparatus can be reduced. In addition, when the gas is allowed to pass through the gaps between the plurality of sheet-like objects that are in contact with each other, the space between the plurality of sheet-like objects can be made relatively small. Can be reduced. Further, in the sheet-like material drying apparatus according to the present invention, each of the plurality of sheet-like materials is provided in order to maintain a substantially uniform interval between the plurality of sheet-like materials by passing the gas through the gaps between the plurality of sheet-like materials. There is no need for a shelf for disposing the sheet and a member for separating each of the plurality of sheet-like objects. For this reason, the size of the sheet-like material drying apparatus can be reduced, and the equipment cost relating to the sheet-like material drying apparatus can be reduced. For example, in the drying apparatus as shown in FIGS. 1 to 9, when air is passed through the gaps between the plurality of sheet-like objects 11, the interval between the plurality of sheet-like objects 11 is about 0.1 mm to several mm. These values are much smaller than the interval between the shelf for placing each of the plurality of sheet-like materials and the member for separating each of the plurality of sheet-like materials, about 10 mm to 25 mm.

  In the embodiment described above, the drying means is disposed on the side of the sheet-like material. However, as shown in a perspective view in FIG. 10, the drying means 21 and the sheet-like material 11 are accommodated in the heat insulating chamber 31. It is good also as a structure arrange | positioned under the cassette 41 which was made. The difference is that the drying means 21 as described above is arranged horizontally with the outlet port on the upper side so that the air flows out from the lower surface end side of the sheet-like material 11. The relationship between the juxtaposed direction of the sheet-like materials and the gas passage direction at the end thereof is the same.

  Thus, when the support body which supports the plurality of sheet-like objects arranged in contact with each other is arranged below the plurality of sheet-like objects, the plurality of sheet-like objects are separated and a plurality of sheets are separated. When a gas is passed through the gap between the sheet-like materials to increase the interval between the plurality of sheet-like materials, a frictional force acts between the sheet-like material and the support. For this reason, the movement of the lower part of the sheet is relatively small. On the other hand, the upper part of the sheet-like object can move relatively freely because no binding force such as a frictional force is applied. For this reason, compared with the lower part of a sheet-like thing, the upper part of a sheet-like thing contacts an adjacent sheet-like thing easily and frequently. Therefore, a flaw may be formed in the upper part of the sheet-like material depending on the material of the sheet-like material.

  Here, as described above, the region where the gas is blown onto the plurality of sheet-like objects has a longitudinal axis, and the longitudinal axis is opposite to the direction in which the position where the gas is blown from the vertical direction moves. When the gas is blown to the ends of the plurality of sheets so that they are inclined at a certain angle, the gas is first blown to the lower portions of the plurality of sheets, and then the plurality of sheets. Sprayed on the upper part of the sheet. First, the gas is blown onto the lower portions of the plurality of sheets, so that the intervals in the lower portions of the plurality of sheets are approximately uniform, and after the plurality of sheets are stabilized, Gas can be sprayed on the upper part of the sheet-like material. Thereby, the movement of the upper part of the sheet-like object can be reduced, and frequent contact (flapping) with the adjacent sheet-like object of the upper part of the sheet-like object can also be reduced. As a result, scratches caused by frequent contact between adjacent sheet-like materials can be reduced. Conversely, the region where the gas is blown onto the plurality of sheet-like objects has a longitudinal axis, and the longitudinal axis is inclined by an angle in the direction in which the position of blowing the gas moves from the vertical direction. As described above, when the gas is blown to the end portions of the plurality of sheet-like materials, the gas is first blown to the upper part of the plurality of sheet-like materials, and the plurality of sheet-like materials are not stabilized. The frequent contact of the upper part of the object cannot be reduced, which is not preferable.

  The sheet-like material drying method according to the present invention can be preferably carried out by a drying apparatus as described above. In the sheet-like material drying method according to the present invention, a plurality of sheet-like materials arranged in contact with each other are arranged. A plurality of sheet-like objects are separated by blowing gas onto the object, and the gas is passed through the gaps between the plurality of sheet-like objects to dry the surfaces of the plurality of sheet-like objects. Basically, as in the previous proposal, for example, as shown in FIG. 8, a plurality of sheet-like objects can be obtained by blowing gas as shown by arrows to a plurality of sheet-like objects 11 arranged in contact with each other. As shown by the arrow 5, the gas 4 is allowed to pass through the plurality of gaps between the plurality of sheet-like objects 11 and the surfaces of the plurality of sheet-like objects 11 are dried. In this way, a gap is formed between the plurality of sheet-like materials by blowing the gas to the end portions of the plurality of sheet-like materials arranged in contact with each other (separating the plurality of sheet-like materials). be able to.

  That is, by blowing gas to the ends of a plurality of sheet-like materials that are juxtaposed in contact with each other, the interval between the plurality of sheet-like materials is widened by the pressure of the blown gas, and they are widened. The gas to be blown will pass through the gap. Here, a pressure ideally determined by Bernoulli's theorem is generated in the gap between the plurality of sheet-like objects to which the gas is blown, according to the speed of the gas passing through the gap between the sheet-like objects. That is, in the gap where the speed of the passing gas is large, the pressure is small, and in the gap where the speed of the passing gas is small, the pressure is relatively large. As a result, the plurality of sheet-like objects move until there is no pressure difference in the gaps between the plurality of sheet-like objects. When the speed of the gas passing through the gaps between the plurality of sheet-like materials becomes substantially uniform and the pressure in the gaps between the plurality of sheet-like materials becomes uniform, the intervals between the plurality of sheet-like materials also become almost uniform. Further, the plurality of sheet-like objects do not adhere to each other while the gas passes through the gaps between the plurality of sheet-like objects. In this way, by allowing gas to pass through the gaps between the plurality of sheet-like materials, the gas present in the gaps between the plurality of sheet-like materials is forcibly ventilated, and the surfaces of the plurality of sheet-like materials are dried. Can do.

  According to the above method for drying a sheet-like material, the surfaces of the plurality of sheet-like materials can be easily and efficiently dried. That is, according to the method for drying a sheet-like material according to the present invention, a plurality of sheets are dried in a short time in order to dry the surfaces of a plurality of sheet-like materials arranged in contact with each other, not a continuous long sheet-like material. The surface of the product can be dried. In addition, since it is not necessary to position each of the plurality of sheet-like objects at predetermined positions, the number of work steps for drying the surface of the sheet-like object can be reduced. Furthermore, according to the method for drying a sheet-like material according to the present invention, the plurality of sheet-like materials are placed in contact with each other without being stacked in the vertical direction, and gas is passed through the gaps between the plurality of sheet-like materials. The surfaces of a plurality of sheet-like materials can be efficiently dried. In addition, it is not necessary to fix a plurality of sheet-like materials to each other with a jig or the like, and gas can pass through the entire surface of the sheet-like material, so that the surface of the sheet-like material can be dried relatively uniformly. it can.

  At this time, in the method of the present invention, as shown in FIG. 5 and FIG. 8, the position for blowing the gas is reciprocated within a predetermined appropriate range that is adjusted according to the characteristics of the sheet-like material in the region. Item 1). Thereby, gas can be made to pass through the whole surface of a sheet-like material more reliably, and the surface of a sheet-like material etc. can be dried uniformly. Further, the range of the reciprocating motion of the gas blowing position is such that the gas blowing nozzle port position is ± 4 mm with respect to the vertical line position corresponding to the both end positions of the plurality of sheet-like objects defined by the regulating member. It is preferable to adjust between them (the invention according to claim 2).

  As shown in FIG. 4, the plurality of sheet-like objects are juxtaposed, and the interval W in the direction in which the plurality of sheet-like objects to be positioned is juxtaposed is freely variable (the invention according to claim 3), respectively. Even if there is a slight difference in rigidity of the sheet-like material, a difference in the shape of the cut surface of the sheet end face, and a variation in gas flow, it is possible to optimize the interval in the direction in which the plurality of sheet-like materials are juxtaposed. The plurality of sheet-like objects can be ordered one by one regularly.

  Further, as shown in FIG. 4, the plurality of sheet-like materials are juxtaposed, and the interval W in the direction in which the plurality of sheet-like materials to be positioned is juxtaposed is added to the processing film thickness by 0.25 mm to 0.35 mm By multiplying the measured value by the number of processed sheets (the invention according to claim 4), a slight difference in rigidity of each sheet-like material, a difference in cut surface shape of the sheet end surface, and a variation in gas flow are obtained. Even if there is, the interval in the direction in which the plurality of sheet-like objects are juxtaposed can be optimized, and the plurality of sheet-like objects can be ordered one by one regularly.

  In the method for drying a sheet-like material according to the present invention, the gas velocity at the first time is preferably larger than the gas velocity at the second time after the first time. That is, the speed of the gas blown to the plurality of sheet-like objects is large at the first time before and small at the second time after. As shown in FIG. 11, the step of drying the surface of a plurality of sheet-like materials is usually constant rate drying in which the drying speed is generally constant in a relatively short time, assuming that the drying conditions are constant. Drying proceeds, and progresses with reduced rate drying where the drying rate decreases continuously over time.

  Therefore, by increasing the speed of the gas sprayed onto the plurality of sheet-like materials at the first time that the drying process proceeds by constant rate drying, the surfaces of the plurality of sheet-like materials are dried. It is possible to reduce the time required for the operation. In addition, at the previous first time, since the drying of the surface of the sheet-like material has not progressed much, the mass of the sheet-like material is relatively large, and frequent contact between adjacent sheet-like materials is relatively Hard to happen. In addition, by reducing the speed of the gas blown to a plurality of sheet-like materials at a second time after the drying process proceeds with reduced-rate drying, frequent contact between adjacent sheet-like materials is achieved. It can be effectively reduced. That is, at the second time later, since the drying of the surface of the sheet-like material proceeds and the sheet-like material is reduced in weight, frequent contact between adjacent sheet-like materials can easily occur, By reducing the speed of the gas sprayed onto the plurality of sheet-like objects, frequent contact between adjacent sheet-like objects can be effectively reduced. Thus, the efficiency of drying the surfaces of a plurality of sheet-like objects by making the gas velocity at the first time larger than the gas velocity at the second time after the first time. Can be improved. That is, it is possible to reduce the time required for drying the surfaces of a plurality of sheet-like materials and to effectively reduce frequent contact between adjacent sheet-like materials.

  In the method for drying a sheet-like material according to the present invention, the velocity of the gas flowing through the first portion in the gap between the plurality of sheet-like materials is preferably lower than the first portion in the gap between the plurality of sheet-like materials. It is smaller than the speed of the gas flowing through the second part on the side. That is, it is preferable to reduce the speed of the gas flowing through the upper portion in the gap between the plurality of sheet-like materials and increase the speed of the gas flowing through the lower portion in the gap between the plurality of sheet-like materials.

  As described above, when the support body that supports the plurality of sheet-like objects arranged in contact with each other is disposed on the lower side of the plurality of sheet-like objects, the upper portion of the sheet-like object is the sheet. Compared to the lower part of the material, it is easily and frequently in contact with the adjacent sheet material. Also, by increasing the speed of the gas blown from the drying means to the plurality of sheet-like materials, the time required for drying the surfaces of the plurality of sheet-like materials can be shortened. By reducing the speed of the gas blown onto the sheet material, frequent contact between adjacent sheet materials can be reduced.

  Therefore, by reducing the speed of the gas flowing in the upper part in the gap between the plurality of sheet-like objects, the movement of the upper part of the sheet-like object that can move relatively freely is reduced, Frequent contact can be reduced. Further, by increasing the speed of the gas flowing in the lower part of the gap between the plurality of sheet-like objects, the movement is relatively restricted by the frictional force with the support and the like, and the adjacent sheet-like objects are contacted. It is possible to improve the drying speed on the surface of the lower portion of the sheet-like material having a relatively low frequency, and to shorten the time required for drying the surfaces of the plurality of sheet-like materials. Thus, the velocity of the gas flowing through the first portion in the gap between the plurality of sheet-like materials is greater than the velocity of the gas flowing through the second portion below the first portion in the gap between the plurality of sheet-like materials. By reducing the length, the time required for drying the surfaces of the plurality of sheet-like materials can be shortened and frequent contact between adjacent sheet-like materials can be reduced.

  In the sheet-like material drying apparatus according to the present invention, it is preferable to have a heat insulating chamber as in the embodiment, but it is more preferable that the heat insulating chamber has means for controlling the temperature inside the heat insulating chamber. The means for controlling the temperature inside the heat insulation chamber may be one or both of a heating means such as a heater and a cooling means.

  Thus, the heat insulation chamber has a means for controlling the temperature inside the heat insulation chamber, thereby controlling the temperature inside the heat insulation chamber, and the temperature of the gas flowing out from the drying means arranged inside the heat insulation chamber and a plurality of temperatures. It is possible to reduce the temperature of the gas passing through the gap between the sheet-like materials from rising or falling below a desired value. Moreover, the temperature inside the heat insulation chamber can be controlled, and the temperature of the plurality of sheet-like objects arranged inside the heat insulation chamber can be reduced from rising or falling below a predetermined temperature. When the temperature of the sheet-like material is too high, the sheet-like material may be deteriorated or deteriorated depending on the material of the sheet-like material. Therefore, reducing deterioration or alteration of the sheet-like material depending on the material of the sheet-like material by reducing the rise in the temperature of the gas sprayed on the plurality of sheet-like materials and the rise in the temperature of the plurality of sheet-like materials. Can do. In addition, by reducing the decrease in the temperature of the gas sprayed on the plurality of sheet-like objects and the decrease in the temperature of the plurality of sheet-like objects, it is possible to reduce a decrease in efficiency of drying the surfaces of the plurality of sheet-like objects. it can.

  In the present invention, the ambient temperature of the plurality of sheet-like materials is preferably higher than room temperature. Here, the normal temperature is a temperature determined by the environment in which the method for drying a sheet-like material according to the present invention is performed, for example, room temperature, and is a temperature in a range of approximately 5 ° C. or more and 35 ° C. or less. The ambient temperature of the plurality of sheet-like materials is the temperature of the environment surrounding the plurality of sheet-like materials when the gas is passed through the gaps between the plurality of sheet-like materials. In the sheet-like material drying apparatus according to the present invention, the temperature inside the heat insulation chamber may be set higher than the normal temperature.

  In this way, by setting the ambient temperature of the plurality of sheet-like materials to be higher than the normal temperature, when the temperature of the gas sprayed to the end of the plurality of sheet-like materials is higher than the normal temperature, the gap between the plurality of sheet-like materials is It is possible to reduce the temperature of the gas passing through the lowering due to the ambient temperature of the plurality of sheet-like objects. Thereby, it can reduce that the efficiency which dries the surface of a some sheet-like thing, etc. falls.

  In the present invention, the temperature of the gas passing through the gaps between the plurality of sheet-like objects at the first time is preferably lower than the temperature of the gas at the second time after the first time. That is, the temperature of the gas passing through the gaps between the plurality of sheet-like objects is low at the first time and high at the second time.

  A liquid such as a solution is applied to the surface of the sheet-like material, and a substance such as a solute contained in the liquid changes due to a chemical reaction when heated to a high temperature in the presence of a liquid medium such as a solvent. In such a case, by reducing the temperature of the gas passing through the gaps between the plurality of sheet-like materials in the initial time when there is a relatively large amount of medium remaining on the surface of the sheet-like material, The chemical reaction in the applied liquid can be reduced. That is, the surface of the sheet can be dried by evaporating the liquid medium without chemically changing the substance contained in the liquid applied to the surface of the sheet. In addition, since the probability that a chemical reaction of a substance contained in the liquid occurs at a later time when the medium remaining on the surface of the sheet-like material is relatively small, the gas passing through the gaps between the plurality of sheet-like materials is reduced. The temperature can be increased to promote evaporation of the medium remaining on the surface of the sheet-like material. That is, the efficiency of drying the surfaces of a plurality of sheet-like materials can be improved. As described above, the temperature of the gas passing through the gaps between the plurality of sheet-like objects at the first time is set lower than the temperature of the gas at the second time after the first time. It is possible to reduce the chemical reaction in the liquid applied to the surface of the sheet and improve the efficiency of drying the surfaces of the plurality of sheet-like materials.

  As mentioned above, the drying apparatus and the drying method of the present invention have been described in detail. . The invention of such a cleaning method and cleaning apparatus will be briefly described below.

  As described above, the cleaning of the surface of the sheet-like material in the present specification and the claims means that the solid adhered to the sheet-like material is removed. The kind of the solid adhering to the sheet-like material is not particularly limited as long as it is a solid that can be removed, and means a solid such as dust and dust.

  Since the embodiments have already been described as the drying apparatus and method, overlapping detailed description will be omitted. However, in the sheet-like material cleaning method of the present invention, as shown in FIG. 2 and FIG. Further, the cleaning air spray nozzle (equivalent to the dry air spray nozzle) 22 has a predetermined inclination φ with respect to the plurality of sheet-like objects 11, so that the cleaning air spray nozzle 22 is substantially in the overlapping direction of the plurality of sheet-like objects 11. When a large amount of the sheet-like material 11 is processed at a time by reciprocating, it becomes possible to always provide a cleaning air between the respective sheet-like materials.

  If the inclination is small, a plurality of sheet-like objects 11 may be overlapped with each other by the force of the cleaning air and may be moved in the stacking direction 20 of the plurality of sheet-like substances 1. During this period, the cleaning air does not pass, the surface of the sheet-like material 1 cannot be reliably cleaned, and the cleaning quality varies.

  As described above, the cleaning air spray nozzle 22 has an appropriate predetermined inclination φ with respect to the plurality of sheet-like objects 11, and thus it is possible to perform cleaning without causing quality variations among the plurality of sheet-like objects 11. Actually, however, the sheet-like materials may not be regularly ordered one by one due to a slight difference in rigidity of each sheet-like material 11, a difference in cut surface shape of the sheet end surface, and a variation in gas flow. And cleaning quality may vary. This has caused a reduction in the yield of the cleaning process.

  According to the present invention, as shown in FIG. 5 and FIG. 8, the gas blowing nozzle reciprocates a plurality of sheet-like objects in the substantially overlapping direction (along the juxtaposed direction) between the STs. By adjusting the position according to the characteristics (characteristics) of each sheet-like material and the number of juxtaposed sheets (the invention method according to claim 9), when processing a large number of sheet-like materials 11 at a time, each sheet shape Cleaning air can be given between the objects without fail, and the sheet-like objects can be spread regularly one by one. Of course, the nozzle port reciprocating position adjustment may be performed by a limit switch or a combination of a ball screw and a stepping motor or a servo motor. Further, the range of the reciprocating motion of the gas blowing position is such that the gas blowing nozzle port position is ± 4 mm with respect to the vertical line position corresponding to the both end positions of the plurality of sheet-like objects defined by the regulating member. It is preferable to adjust between them (the invention according to claim 10).

  As shown in FIG. 4, the plurality of sheet-like objects are juxtaposed, and the interval W in the direction in which the plurality of sheet-like objects to be positioned is juxtaposed is freely changed (the invention according to claim 11), respectively. Even if there is a slight difference in rigidity of the sheet-like material, a difference in the shape of the cut surface of the sheet end face, and a variation in gas flow, it is possible to optimize the interval in the direction in which the plurality of sheet-like materials are juxtaposed. The plurality of sheet-like objects can be ordered one by one regularly.

  Further, as shown in FIG. 4, the plurality of sheet-like objects are juxtaposed, and the interval W in the direction in which the plurality of sheet-like substances to be positioned is juxtaposed is added to the processing film thickness by 0.25 mm to 0.35 mm. By multiplying the measured value by the number of processed sheets (the invention according to claim 12), a slight difference in rigidity of each sheet-like material, a difference in the shape of the cut surface of the sheet end surface, and a variation in gas flow are obtained. Even if there is, the interval in the direction in which the plurality of sheet-like objects are juxtaposed can be optimized, and the plurality of sheet-like objects can be ordered one by one regularly.

  Moreover, although the description which overlaps is abbreviate | omitted, the washing | cleaning apparatus of the sheet-like material of this invention is a gas with respect to the direction where the said several sheet-like material was juxtaposed from the perpendicular direction in the edge part of the said several sheet-like material. In a sheet-shaped object cleaning apparatus for spraying by moving the spraying position along the direction in which the plurality of sheet-shaped objects are juxtaposed to the region distributed in the inclined direction, the position for spraying the gas is within a predetermined range. In the case of processing a large amount of the sheet-like material 1 at a time, it is possible to always give a dry air between the sheet-like materials. In particular, by adjusting the reciprocating position (range) in accordance with the characteristics of each sheet-like material, the sheet-like materials can be ordered regularly one by one. Further, the range of the reciprocating motion of the gas blowing position is such that the gas blowing nozzle port position is ± 4 mm with respect to the vertical line position corresponding to the both end positions of the plurality of sheet-like objects defined by the regulating member. It is preferable to adjust between them (the invention according to claim 14).

  Of course, as in the previous proposal, the space for juxtaposing a plurality of sheet-like objects can be reduced. In the sheet-like cleaning apparatus according to the present invention, the gas is passed through the gaps between the plurality of sheet-like materials so that the intervals between the plurality of sheet-like materials are maintained substantially uniform. There is no need for a shelf for arranging each of them and a member for separating each of the plurality of sheet-like objects. For this reason, the size of the sheet cleaning device can be reduced, and the equipment cost relating to the sheet cleaning device can be reduced. For example, in the cleaning apparatus as shown in FIG. 1, when air is passed through the gaps between the plurality of sheet-like objects 11, the interval between the plurality of sheet-like objects 11 is about 0.1 mm to several mm. These values are much smaller than the interval between the shelf for placing each of the plurality of sheet-like materials and the member for separating each of the plurality of sheet-like materials, about 10 mm to 25 mm.

  As shown in FIG. 4, the plurality of sheet-like objects are juxtaposed, and the interval W in the direction in which the plurality of sheet-like objects to be positioned is juxtaposed is freely variable (the invention according to claim 15), respectively. Even if there is a slight difference in rigidity of the sheet-like material, a difference in the shape of the cut surface of the sheet end face, and a variation in gas flow, it is possible to optimize the interval in the direction in which the plurality of sheet-like materials are juxtaposed. The plurality of sheet-like objects can be ordered one by one regularly. Of course, either one or both of the two side plates of the sheet cassette in which the sheet is juxtaposed may be used. The position fixing method may be any combination of a long hole and a bolt or a slide screw mechanism.

  Further, as shown in FIG. 4, the plurality of sheet-like objects are juxtaposed, and the interval W in the direction in which the plurality of sheet-like substances to be positioned is juxtaposed is added to the processing film thickness by 0.25 mm to 0.35 mm. By multiplying the measured value by the number of processed sheets (the invention according to claim 16), a slight difference in rigidity of each sheet-like material, a difference in cut surface shape of the sheet end surface, and a variation in gas flow are obtained. Even if there is, the interval in the direction in which the plurality of sheet-like objects are juxtaposed can be optimized, and the plurality of sheet-like objects can be ordered one by one regularly.

  Using the sheet drying apparatus according to the present invention as shown in FIG. 1, according to the sheet drying method according to the present invention, the gas (air) spray nozzle reciprocating position (L1, L2 in FIG. 5) under the following conditions: A plurality of sheet-like materials were dried by blowing air to 50 sheets of sheet-like materials (films). Moreover, the sheeting state of the single sheet material (film) at this time, fluttering of the film, and scratches were observed visually and with a high-speed camera.

<Single wafer processing object>
Resin, dye, developer, filler-containing solvent-based paint coated PET sheet (1) Total thickness: 195 μm
(2) Sheet size: 354mm x 430mm
(3) 50 sheets

<Device specifications>
(A) Drying air speed: 30m / min
(B) Single-sheet processing object holding interval of cassette: 25 mm / when the number of sheets is 50 (c) Cassette: A, B
(D) Dry air blowing nozzle slit interval x length: 7 mm x 430 mm
(E) Dry air blowing nozzle tilt: 1.5 degrees (upper side tilted to the right with the lower reference toward the gas blowing nozzle)
(F) Drying air temperature: 80 ° C
(G) Distance between the dry air spray nozzle and the end face of the sheet-like workpiece: 2 mm
(H) Dry air spray nozzle reciprocating motion speed: 500 mm / min (i) Heat insulation cover: Glass wool 50 mm thick surface stainless steel tension

<Observation method>
(I) Visual observation (ii) High-speed camera: High-speed camera manufactured by Sakaesha Co., Ltd. VFC-1000 Imaging frame rate: 500 frames / second Playback frame rate: 10-60 frames / second

The scratch was observed only on the film in contact with the film cassette side plate.
The film is set in two film cassettes, cassettes A and B. The film cassette with the coating surface on the right side is placed in cassette A, and the film with the coating surface on the left side is placed in cassette B. Observation was made including differences. The obtained results are shown in Table 1.

  As a result of Table 1, when the L1 and L2 gas blowing reciprocating positions in FIG. 5 are set to +4 mm or more and −4 mm or less, although it seems that one film is not reliably rolled by visual observation, it is confirmed by a high-speed camera. Thus, when the reciprocating position was between +4 mm and −4 mm, it was confirmed that there was no problem in rolling one film, the film flutter could be reduced, and there was no flaw due to flutter. It was confirmed that there was a slight difference in film behavior depending on the direction of the coated surface relative to the cassette.

  Under the same conditions as described above, Example 1 is different from Example 1 in that the sheet insertion interval W (average interval between films) of the sheet-like cassette shown in FIG. Table 2 shows the results of one sheeting of the sheet-like material (film) when the film was sprayed, the flapping of the film, and the scratches observed visually and with a high-speed camera.

The scratch was observed only on the film in contact with the film cassette side plate.
The film is set in two film cassettes, cassettes A and B. The film cassette with the coating surface on the right side is placed in cassette A, and the film with the coating surface on the left side is placed in cassette B. Observation was made including differences. The obtained results are shown in Table 2.

  As a result of Table 2, when the dimension W in FIG. 4 (distance between the cassette side plates 42) is 22.5 mm to 27.25 mm (average distance between films is 0.25 to 0.35 mm), It was confirmed that there was no problem and there were no scratches due to film fluttering. Regardless of whether the W dimension is larger or smaller than the above value, the films are not spread regularly one by one. Further, it was confirmed that there was a slight difference in film behavior depending on the direction of the coated surface with respect to the cassette.

  As is apparent from the above description, according to the present invention, in the drying after the application of a sheet-like material such as plastic film, paper, liquid crystal, and plasma display-related parts such as flat display, and the cleaning of the sheet-like material, It is possible to improve the yield of the drying process and the cleaning process by rolling the objects one by one.

  Although the embodiments and examples of the present invention have been specifically described above, the present invention is not limited to these embodiments and examples, and these embodiments and examples of the present invention are not limited thereto. Can be changed or modified without departing from the spirit and scope of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be applied to all technical fields using a sheet-like material drying method for drying a plurality of sheet-like materials and a sheet-like material drying apparatus having a drying means for drying the plurality of sheet-like materials. .

  Further, the present invention is applicable to all technical fields using a sheet-like material cleaning method for cleaning a plurality of sheet-like materials and a sheet-like material cleaning apparatus having a cleaning means for cleaning a plurality of sheet-like materials. Can do.

  Furthermore, the present invention uses a sheet-like foreign matter removing method for removing foreign matters from a plurality of sheet-like materials, and a sheet-like foreign matter removing apparatus having foreign matter removing means for removing foreign matters from a plurality of sheet-like materials. It can be applied to all technical fields.

1 is an overall perspective view of a sheet drying apparatus (cleaning apparatus) according to an embodiment of the present invention. It is a schematic perspective view which shows the unit unit as an apparatus principal part of a drying apparatus, and is a figure which shows the basic principle of this invention. It is a schematic explanatory drawing which shows the positional relationship of the nozzle, the film, and sheet-like thing stopper which looked at the unit unit of this invention from the side surface. It is the schematic which shows the sheet-like object arrangement | positioning space | interval which looked at the sheet-like object accommodated in the sheet-like object cassette frame from the end surface side. It is principal part explanatory drawing explaining the positional relationship with the vertical direction both-ends position perpendicular line of the sheet-like object with respect to the dry wind nozzle (gas blowing nozzle) which is a gas blowing part of a drying means, an attitude | position, etc. FIG. It is a figure explaining the passage direction of the gas which passes through the gap | interval of several sheet-like material in the drying method of sheet-like material by this invention, or the cleaning method of sheet-like material. It is a figure explaining the passage direction of the gas which passes through the gap | interval of several sheet-like material in the drying method of sheet-like material by this invention, or the cleaning method of sheet-like material. It is a figure explaining the blowing direction of the gas sprayed on the edge part of a sheet-like material, and a gas spray nozzle inclination angle. It is the schematic which shows an example of a nozzle opening reciprocating position adjustment mechanism. It is a figure explaining other embodiment of the drying apparatus of the sheet-like material by this invention. It is a figure explaining progress of the process of drying the surface of a plurality of sheet-like objects. It is the schematic explaining the method to dry the continuous sheet-like material using the conventional roll toe roll drying apparatus. It is the schematic explaining the method of drying the continuous sheet-like material wound up by the conventional roll shape. It is the schematic explaining the method of drying the some sheet-like material using the conventional stacker. It is the schematic explaining the method of drying the several sheet-like material using the belt conveyor provided with the conventional many separation member. It is the schematic explaining the conventional ink-print-off prevention apparatus for sheet-fed printing. It is the schematic explaining the conventional removal method of dust.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Sheet-like material 21, 21 '... Drying means or washing | cleaning means 22, 22' ... Gas spray nozzle (Drying wind nozzle, washing wind nozzle)
31 ... Insulation room (insulation chamber)
32 ... Nozzle fixing plate 33 ... Ball screw 34 ... Ball screw nut 35 ... Ball screw bearing 36 ... Shaft joint 37 ... Stepping motor 41 ... Sheet material cassette 42 ... Sheet material cassette side plate 43 ... Sheet material stopper φ ... Nozzle inclination angle D1 ... 5). Gas spray nozzle spray direction D2 ... 6. Gas spray nozzle reciprocating direction (movement direction; motion mechanism not shown)
D3 ... 11. Sheet material stacking direction (parallel direction)
P1, P2 ... Vertical line positions at both ends of the sheet-like material in the juxtaposition direction P1 ', P2' ... Outermost vertical line position of the gas blowing nozzle port FL ... Gas (drying air, washing air)
ST ... Reciprocating range (of gas blowing nozzle)

Claims (16)

A plurality of sheet-like objects juxtaposed at an angle of 0 ° to less than 90 ° from the vertical direction in a state where they are in contact with each other in the thickness direction, gas is blown away from each other to pass through the gaps between the sheet-like objects. A method for drying the sheet-like material by drying the plurality of sheet-like materials,
When the gas is blown to an area distributed in a direction inclined with respect to a direction in which the plurality of sheet-like objects are juxtaposed from a vertical direction at an end portion of the plurality of sheet-like objects, the area to be sprayed is the sheet-like object. A method for drying a sheet-like material, wherein the sheet-like material is sprayed while being reciprocated along a direction in which the sheet-like materials are juxtaposed within a predetermined reciprocating range determined according to the characteristics of the sheet. Two movement outermost end vertical line positions (P1 ′, P2 ′) respectively corresponding to the innermost portions at both positions of the outermost end of the movement range of the gas blowing nozzle port,
The outermost end vertical line position (P1,) set with a deviation of ± 4 mm with respect to the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like objects defined by the regulating means along the direction in which the sheet-like objects are juxtaposed Match P2),
The method for drying a sheet-like material according to claim 1, wherein the gas is sprayed while the gas spray nozzle is reciprocated.   3. The movement range of the gas blowing nozzle is set according to adjusting the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the regulating means. A method for drying a sheet.   The interval between the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the regulating means is added to the average gap distance between the sheet-like materials to the sheet-like material thickness by 0.25 mm to 0.35 mm. 4. The method for drying a sheet-like material according to claim 3, wherein the value is adjusted to a value obtained by multiplying the value by the number of sheets. A plurality of sheet-like objects juxtaposed at an angle of 0 ° to less than 90 ° from the vertical direction in a state where they are in contact with each other in the thickness direction, gas is blown away from each other to pass through the gaps between the sheet-like objects. A sheet-like material drying apparatus for drying the plurality of sheet-like materials,
The plurality of sheet-like materials are sprayed at a position where the gas is sprayed in a region in which the gas is distributed in a direction inclined with respect to a direction in which the plurality of sheet-like materials are juxtaposed from a vertical direction at an end portion of the plurality of sheet-like materials. In the drying apparatus for the sheet-like material that is moved along the direction in which the two are juxtaposed and sprayed,
An apparatus for drying a sheet-like material, wherein a region in which a gas is blown is reciprocated within a predetermined range, and the reciprocating range is freely adjustable.   The gas blowing nozzle port is inclined in the direction in which the plurality of sheet-like objects are juxtaposed from the vertical direction and opened in a strip shape, and the gas blowing nozzle port position is in the direction in which the sheet-like objects are juxtaposed. A gas is blown while reciprocating in a moving range set between vertical line positions of ± 4 mm with respect to vertical line positions corresponding to both end positions in the juxtaposition direction of the plurality of sheet-like materials. 5. A sheet drying apparatus according to 5.   The sheet-like material drying apparatus according to claim 6, wherein an interval between regulating members that regulate the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials can be freely changed.   The interval between the regulating members that regulate the positions of the two juxtaposed sheets in the juxtaposition direction is a value obtained by adding 0.25 mm to 0.35 mm to the average gap distance between the sheet-like materials to the sheet-like material thickness. The sheet drying apparatus according to claim 7, wherein a value obtained by multiplying the number of sheets is obtained. A plurality of sheet-like objects juxtaposed at an angle of 0 ° to less than 90 ° from the vertical direction in a state where they are in contact with each other in the thickness direction, gas is blown away from each other to pass through the gaps between the sheet-like objects. A method for cleaning the sheet-like material by drying the plurality of sheet-like materials,
When the gas is blown to an area distributed in a direction inclined with respect to a direction in which the plurality of sheet-like objects are juxtaposed from a vertical direction at an end portion of the plurality of sheet-like objects, the area to be sprayed is the sheet-like object. A method for cleaning a sheet-like material, wherein the sheet-like material is sprayed while being reciprocated along a direction in which the sheet-like material is juxtaposed within a predetermined reciprocating range determined according to the characteristics of the sheet. Two movement outermost end vertical line positions (P1 ′, P2 ′) respectively corresponding to the innermost portions at both positions of the outermost end of the movement range of the gas blowing nozzle port,
The outermost end vertical line position (P1,) set with a deviation of ± 4 mm with respect to the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like objects defined by the regulating means along the direction in which the sheet-like objects are juxtaposed Match P2),
The method for cleaning a sheet-like object according to claim 9, wherein the gas is sprayed while reciprocating the gas spray nozzle.   11. The range of movement of the gas spray nozzle is set in accordance with adjustment of the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the regulating means. Cleaning method for sheet-like materials.   The interval between the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like materials defined by the regulating means is added to the average gap distance between the sheet-like materials to the sheet-like material thickness by 0.25 mm to 0.35 mm. 12. The method for cleaning a sheet according to claim 11, wherein the value is adjusted to a value obtained by multiplying the value by the number of sheets. A plurality of sheet-like objects juxtaposed at an angle of 0 ° to less than 90 ° from the vertical direction in a state where they are in contact with each other in the thickness direction, gas is blown away from each other to pass through the gaps between the sheet-like objects. A sheet-like material cleaning device that dries the plurality of sheet-like materials,
The plurality of sheet-like materials are sprayed at a position where the gas is sprayed in a region in which the gas is distributed in a direction inclined with respect to a direction in which the plurality of sheet-like materials are juxtaposed from a vertical direction at an end portion of the plurality of sheet-like materials. In the sheet-like cleaning device that is sprayed by moving along the direction in which the two are juxtaposed,
An apparatus for cleaning a sheet-like object, wherein a region to which gas is blown is reciprocated within a predetermined range, and the reciprocating range is freely adjustable.   The gas blowing nozzle port is inclined in the direction in which the plurality of sheet-like objects are juxtaposed from the vertical direction and opened in a strip shape, and the gas blowing nozzle port position is in the direction in which the sheet-like objects are juxtaposed. A gas is blown while reciprocating in a moving range set between vertical line positions of ± 4 mm with respect to vertical line positions corresponding to both end positions in the juxtaposition direction of the plurality of sheet-like materials. 13. A cleaning apparatus for sheet-like material according to 13.   The apparatus for cleaning a sheet-like object according to claim 14, wherein the interval between the regulating members that regulate the outermost positions at both ends in the juxtaposition direction of the plurality of sheet-like objects can be freely changed. The interval between the regulating members that regulate the positions of the two juxtaposed sheets in the juxtaposition direction is a value obtained by adding 0.25 mm to 0.35 mm to the average gap distance between the sheet-like materials to the sheet-like material thickness. The sheet-shaped article cleaning apparatus according to claim 15, wherein a value obtained by multiplying the number of sheets is obtained.

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