JP4698462B2 - How to paste a long web - Google Patents

Description

  The present invention relates to a method for attaching a long web, wherein the long web is thermocompression bonded to each substrate in a continuous state.

  For example, in a liquid crystal panel substrate, a printed wiring substrate, and a PDP panel substrate, a photosensitive sheet (elongated web) having a photosensitive material (photosensitive resin) layer is attached to the substrate surface. In general, a photosensitive sheet is formed by sequentially laminating a photosensitive material layer and a protective film on a flexible plastic support.

  Therefore, in a pasting apparatus used for pasting this type of photosensitive sheet body, usually a substrate such as a glass substrate or a resin substrate is transported while being spaced apart by a predetermined interval, and is also protected from the photosensitive sheet body. A method is adopted in which a photosensitive material layer is attached to the substrate after the film is peeled off.

  The affixing device usually includes a pair of laminate rolls, and the laminate rolls are heated to a predetermined temperature by induction heating or the like. For this reason, the photosensitive sheet | seat body and board | substrate clamped by the lamination roll are mutually thermocompression bonded.

  By the way, various defects are easily generated in the photosensitive sheet body, and in the laminated substrate in which the photosensitive sheet body having a defective portion is attached to the substrate, the photosensitive material layer is peeled off or pre-processed in a later step. Since the recycling process including the process is complicated, the work efficiency is lowered and the cost is increased, there is a problem that it is difficult to proceed with the reuse of the substrate.

  Therefore, for example, in the film laminating method disclosed in Patent Document 1, the state of the film is monitored before film lamination to the substrate, it is determined whether or not the film includes a defective portion, and the defective portion is detected. Discards the region including the defective portion of the film and attaches the good region to the substrate. Thus, the number of normal substrates discarded can be reduced by sticking a good region of the film fed from the film supply roll to the base.

Japanese Patent Laying-Open No. 2003-62906 (FIG. 1)

  By the way, normally, when the laminating process is stopped, the rear end of the last laminated substrate is disposed in the vicinity of the laminating roll. For this reason, the rear end of the laminate substrate is easily heated by the radiant heat from the laminate roll. Therefore, when the stop state of the laminate roll is continued for a predetermined time or more, the photosensitive resin layer constituting the laminate substrate is affected by heat and the quality is deteriorated, and the laminate substrate may become a defective product. There is a problem of high nature. Thereby, for example, every time when the film supply roll is stopped in the film supply roll, a defective laminate substrate is generated, which is not economical.

  Further, at the time of this stop, the film located upstream is also easily affected by heat, and there is a concern that the quality may be deteriorated. For this reason, there is a problem in that at least one sheet of laminated film and one film before the lamination process are defective, and a large amount of film loss occurs, which is not economical.

  The present invention solves this type of problem, and can easily avoid the heat effect due to the stop of the heating roller by a simple process, and can obtain a high-quality laminate efficiently and economically. It is an object of the present invention to provide a method for attaching a possible long web.

  The present invention is a method for attaching a long web in which the long web is thermocompression bonded to each substrate in a continuous state. Therefore, first, the heating roller placed in an affixing arrangement is pressed against the long web and rotated, whereby a part of the long web is thermocompression bonded to the substrate to obtain a laminate.

  Next, when it is determined that the thermocompression bonding operation of the long web is stopped for a predetermined time or more, the heating roller is further rotated by a predetermined angle from the sticking stop angle position, so that the heating roller The rear end portion of the adjacent stacked body is separated from the heating roller by a desired distance.

  Here, the pasting stop angle position means that a part of the long web is thermocompression bonded to the substrate when a laminate is sequentially manufactured by thermocompression bonding to a substrate. This is the angular position where the heating roller is stopped before entering the operation.

  Further, the long web is a multilayer web in which at least a first layer body and a second layer body are laminated, and the long web is half-cut while leaving a part in the laminating direction. When it is determined that the step of forming a half-cut portion at every predetermined interval according to the length and the thermocompression bonding operation of the long web is stopped for a predetermined time or more, under the rotating action of the heating roller, It is preferable to include a step of stopping the rotation of the heating roller after arranging at least a part between the half-cut portions on the outer periphery of the heating roller.

  Furthermore, the long web is a multilayer web in which at least the first layer body and the second layer body are laminated, and the long web is half-cut leaving a part in the laminating direction, A step of forming half-cut portions at predetermined intervals according to the substrate length, and when it is known in advance that the thermocompression bonding operation of the long web is stopped for a predetermined time or longer, it is constant from the half-cut portions. A step of previously forming a half-cut portion for stop at a position separated by a distance, and at least part of the half-cut portion for stop and the half-cut portion for stop under the rotating action of the heating roller, It is preferable to include a step of stopping the rotation of the heating roller after being arranged on the outer periphery of the heating roller.

  Furthermore, the fixed distance between the half-cut part and the stopping half-cut part is preferably set to be shorter than a predetermined interval between the half-cut parts and longer than the length affected by the heat from the heating roller. .

  Furthermore, when it is determined that the thermocompression bonding operation of the long web is stopped for a predetermined time or more, the portion affected by the heat from the heating roller in contact with or close to the heating roller is separated from the heating roller. It is preferable to hold it.

  In addition, when the operation of attaching the long web is resumed, the heat-affected portion of the long web, which is judged to have been affected by the heat from the heating roller in close contact with or close to the heating roller, is attached. After being sent out from the position, it is preferable that a new part other than the heat-affected part of the long web is thermocompression bonded to a new substrate under the rotating action of the heating roller.

  In the present invention, when it is determined that the thermocompression bonding operation of the long web is stopped for a predetermined time or more, the heating roller rotates by a predetermined angle more, so that the rear end of the laminate closest to the heating roller is obtained. The part is separated from the heating roller by a desired distance.

  For this reason, the rear end portion of the laminate is not exposed to radiant heat from the heating roller for a long time, and for example, the quality of the photosensitive resin layer constituting the long web can be maintained well. . Thereby, it is possible to satisfactorily avoid the thermal influence due to the stop of the heating roller by a simple process, and to obtain a high-quality laminate efficiently and economically.

  FIG. 1 is a schematic configuration diagram of a manufacturing apparatus 20 for carrying out the method for attaching a laminate according to the first embodiment of the present invention. The manufacturing apparatus 20 is a process of thermally transferring a photosensitive resin layer 29 (described later) of a long photosensitive web (long web) 22 to a glass substrate 24 in a manufacturing process of a liquid crystal or an organic EL color filter or the like. I do.

  FIG. 2 is a cross-sectional view of the photosensitive web 22 used in the manufacturing apparatus 20. This photosensitive web 22 is formed by laminating a flexible base film (support layer) 26, a cushion layer (thermoplastic resin layer) 27, an intermediate layer (oxygen barrier film) 28, a photosensitive resin layer 29, and a protective film 30. Composed. The photosensitive web 22 may be composed of a base film 26, a photosensitive resin layer 29, and a protective film 30.

  The base film 26 is formed of polyethylene terephthalate (PET), the cushion layer 27 is formed of ethylene and vinyl oxide copolymer, the intermediate layer 28 is formed of polyvinyl alcohol, and the photosensitive resin layer 29 is alkali-soluble. The protective film 30 is formed of polyethylene, polypropylene, or the like, and is formed of a colored photosensitive resin composition containing a binder, a monomer, a photopolymerization initiator, and a colorant.

  As shown in FIG. 1, the manufacturing apparatus 20 accommodates a photosensitive web roll 22a in which a photosensitive web 22 is wound in a roll shape, and a web feed mechanism 32 that feeds the photosensitive web 22 from the photosensitive web roll 22a. And a half-cut mechanism 36 for forming a half-cut portion 34 that can be cut in the width direction on the protective film 30 of the fed photosensitive web 22, and an adhesive label 38 having a non-adhesive portion 38a in part (FIG. 3). And a label adhering mechanism 40 for adhering the protective film 30 to the protective film 30. Note that two sets of the half-cut mechanism 36 may be disposed in the direction of the arrow A with a predetermined interval therebetween, and two half-cut portions 34 may be formed at the same time.

  Downstream of the label adhering mechanism 40, a reservoir mechanism 42 for changing the photosensitive web 22 from tact feeding to substantially continuous feeding, and a peeling mechanism for peeling the protective film 30 from the photosensitive web 22 at a predetermined length interval. 44, a heating mechanism 45 for transporting the glass substrate 24 to a pasting position in a state where the glass substrate 24 is heated to a predetermined temperature, and a pasting for pasting the photosensitive resin layer 29 exposed by the peeling of the protective film 30 to the glass substrate 24 A mechanism 46 is disposed. The laminated body in which the photosensitive web 22 is bonded to the glass substrate 24 by the bonding mechanism 46 is hereinafter referred to as a bonded substrate 24a.

  A detection mechanism 47 that directly detects a half-cut portion 34 that is a boundary position of the photosensitive web 22 is disposed in the vicinity of the pasting position in the pasting mechanism 46, and downstream of the pasting mechanism 46. An inter-substrate web cutting mechanism 48 for cutting the photosensitive web 22 between the glass substrates 24 is disposed. Upstream of the inter-substrate web cutting mechanism 48, a web cutting mechanism 48a used at the start of operation and at the end of operation is provided.

  In the vicinity of the downstream side of the web feed mechanism 32, a joining base 49 for joining the rear end of the photosensitive web 22 that has been substantially used and the tip of the photosensitive web 22 that is newly used is disposed. A film end position detector 51 is disposed downstream of the joining base 49 in order to control the deviation in the width direction due to the winding deviation of the photosensitive web roll 22a.

  The half-cut mechanism 36 is disposed downstream of the roller pair 50 for calculating the roll diameter of the photosensitive web roll 22a accommodated and wound in the web feed mechanism 32. The half-cut mechanism 36 includes a slide base 52 that can be moved back and forth in a direction orthogonal to the conveyance direction (arrow A direction) of the photosensitive web 22. A rotating round blade (cutter) 54 is fixed to the slide base 52, and a cut receiving base 56 is disposed at a position facing the rotating round blade 54 with the photosensitive web 22 interposed therebetween.

  As shown in FIG. 2, the half-cut portion 34 needs to cut at least the protective film 30, and in practice, the photosensitive resin layer 29 to the intermediate layer 28 are cut to securely cut the protective film 30. In addition, the cutting depth of the rotating round blade 54 is set. Instead of the rotating round blade 54, for example, the half-cut portion 34 employs a cutting method using a fixed round blade or ultrasonic waves, a knife blade, a band-shaped push cutting blade (Thomson blade) described later, and the like. May be. The push cutting blade includes an oblique push cutting structure in addition to a vertical push cutting structure.

  The half-cut part 34 is the distance between the glass substrates 24 (specifically, the distance between the glass substrates 24 + the amount of entry into the glass substrate 24-the size of the frame portion, hereinafter simply referred to as the distance between the glass substrates 24) For example, it is set at a position where it enters the glass substrates 24 on both sides by 10 mm. A portion sandwiched between the half cut portions 34 between the glass substrates 24 functions as a mask when the photosensitive resin layer 29 is attached to the glass substrate 24 in a frame shape in an attaching mechanism 46 described later.

  The label bonding mechanism 40 supplies an adhesive label 38 that connects the peeling portion 30aa on the front side of the peeling side and the peeling portion 30ab on the back side of the peeling side in order to leave the remaining portion 30b of the protective film 30 correspondingly between the glass substrates 24. . As shown in FIG. 2, the protective film 30 has a remaining portion 30 b sandwiched between the first peeled portion 30 aa and the later peeled portion 30 ab.

  As shown in FIG.2 and FIG.3, as for the part pinched | interposed by the half cut site | part 34, while the short side is set to the distance L1 corresponding to the space | interval of the glass substrate 24, a long side is along peeling part 30aa and 30ab. The predetermined interval L2 is set according to the substrate length (specifically, the length of the glass substrate 24 + the amount of entry into the glass substrate 24−the size of the frame portion).

  As shown in FIG. 3, the adhesive label 38 is formed in a strip shape, and is formed of, for example, the same resin material as the protective film 30. The adhesive label 38 has a non-adhesive portion (including a slight adhesion) 38a to which a pressure-sensitive adhesive is not applied at the center, and the front side of the non-adhesive portion 38a, that is, both ends in the longitudinal direction of the adhesive label 38 It has the 1st adhesion part 38b adhered to exfoliation part 30aa, and the 2nd adhesion part 38c adhered to back exfoliation part 30ab.

  As shown in FIG. 1, the label adhering mechanism 40 includes adsorbing pads 58a to 58e capable of adhering a maximum of five adhering labels 38 at predetermined intervals, and the adhering labels by the adsorbing pads 58a to 58e. At the attachment position 38, a pedestal 59 for holding the photosensitive web 22 from below is disposed so as to be movable up and down.

  The reservoir mechanism 42 absorbs the difference in speed between the tact conveyance of the upstream photosensitive web 22 and the continuous conveyance of the downstream photosensitive web 22, but in order to further prevent fluctuations in tension, the reservoir mechanism 42 is a oscillating duplex unit. It is preferable to provide a dancer 61 composed of the roller 60. Note that the roller 60 may be one or three or more depending on the reserve amount.

  The peeling mechanism 44 is disposed downstream of the reservoir mechanism 42 and includes a suction drum 62 and a peeling roller 64 that contacts the suction drum 62 with the photosensitive web 22 interposed therebetween. The protective film 30 that is peeled off from the photosensitive web 22 at an acute peeling angle via the peeling roller 64 is wound around the protective film winding shaft 66 except for the remaining portion 30b. The protective film take-up shaft 66 is connected to, for example, a torque motor 68 in order to apply a predetermined tension to the protective film 30.

  A tension control mechanism 76 that can apply tension to the photosensitive web 22 is disposed on the downstream side of the peeling mechanism 44. The tension control mechanism 76 includes a cylinder 78, and the tension of the photosensitive web 22 with which the tension pickup roller 80 is slidably contacted can be adjusted by oscillating and displacing the tension pickup roller 80 under the driving action of the cylinder 78. is there. The tension control mechanism 76 may be used as necessary, and can be deleted.

  The detection mechanism 47 includes a photoelectric sensor 82 such as a laser sensor or a photosensor. The photoelectric sensor 82 is a wedge-shaped groove-shaped portion of the half-cut portion 34, a step due to the thickness of the protective film 30, or these A change due to the combination is directly detected, and this detection signal is used as a boundary position signal. The photoelectric sensor 82 is disposed to face the backup roller 83. Instead of the photoelectric sensor 82, an image inspection means such as a non-contact displacement meter or a CCD camera may be used.

  The position data of the half-cut region 34 detected by the detection mechanism 47 can be statistically processed and graphed in real time, and an alarm can be issued when a variation abnormality or bias occurs.

  Further, instead of directly detecting the half-cut portion 34, a hole or notch is formed in the vicinity of the half-cut mechanism 36 corresponding to the half-cut portion 34, or a hole is formed by laser processing or aqua jet processing. A mark portion may be formed by providing a notch or marking by an ink jet or a printer, and the mark portion may be detected and used as a boundary position signal.

  The heating mechanism 45 includes a transport mechanism 84 for transporting the glass substrate 24 in the arrow C direction, and the transport mechanism 84 includes a plurality of resin disk-shaped transport rollers 86 arranged in the arrow C direction. A receiving portion 88 that receives the glass substrate 24 is provided on the upstream side in the arrow C direction of the transport mechanism 84. A plurality of heating furnaces 90 are arranged on the downstream side of the receiving unit 88.

  The heating mechanism 45 constantly monitors the temperature of the glass substrate 24. When an abnormality occurs, the conveyance roller 86 is stopped or alarmed, and abnormal information is transmitted to cause the abnormal glass substrate 24 to be NG discharged and quality control in a subsequent process. Or it can be used for production management. Further, the transport mechanism 84 may be configured such that an air levitation plate (not shown) is provided and the glass substrate 24 is floated and transported in the direction of arrow C.

  A substrate stocker 100 that accommodates a plurality of glass substrates 24 is provided upstream of the heating mechanism 45. The substrate stocker 100 is provided with a dust removal fan unit (or duct unit) 102 on three side surfaces other than the loading and unloading ports. The fan unit 102 blows out the static elimination clean air into the substrate stocker 100. Each glass substrate 24 accommodated in the substrate stocker 100 is sucked and taken out by the suction pad 106 provided in the hand portion 104 a of the robot 104 and is carried into the receiving portion 88.

  The affixing mechanism 46 is provided with rubber rollers 110a and 110b for laminating that are arranged vertically and heated to a predetermined temperature. The backup rollers 112a and 112b are slidably contacted with the rubber rollers 110a and 110b, and the backup roller 112b is pressed toward the rubber roller 110b via the roller clamp portion 114.

  In the vicinity of the rubber roller 110a, a contact prevention roller 116 for preventing the photosensitive web 22 from contacting the rubber roller 110a is disposed. The contact prevention roller 116 is movable via an actuator (not shown).

  A film transport roller 118a and a substrate transport roller 118b are disposed between the attaching mechanism 46 and the inter-substrate web cutting mechanism 48. A cooling mechanism 120 is disposed on the downstream side of the inter-substrate web cutting mechanism 48, and a base peeling mechanism 122 is disposed on the downstream side of the cooling mechanism 120. After the photosensitive web 22 between the bonded substrates 24a is cut through the inter-substrate web cutting mechanism 48, the cooling mechanism 120 supplies cooling air to the bonded substrate 24a to perform a cooling process. Specifically, the cold air temperature is set to 10 ° C., and the air volume is set to 1.0 to 2.0 m / min. In addition, you may naturally cool with the photosensitive laminated body stocker 136 mentioned later, without using the cooling mechanism 120. FIG.

  The base peeling mechanism 122 disposed downstream of the cooling mechanism 120 includes a plurality of suction pads 124 that suck the attached substrate 24a from below, and the attached substrate 24a is sucked and held on the suction pads 124. The base film 26 and the remaining portion 30b are peeled off via the robot hand 126. On the upstream, downstream, and both sides of the suction pad 124, a static elimination blow (not shown) that injects static elimination clean air from the side surfaces in four directions is disposed on the entire laminate portion of the bonding substrate 24a. Note that the peeling may be performed with the table vertical, tilted, or turned upside down for dust removal.

  A photosensitive laminate stocker 136 that accommodates a plurality of laminate substrates 130 is provided downstream of the base peeling mechanism 122. The laminated substrate 130 from which the base film 26 and the remaining portion 30b are peeled off from the attached substrate 24a by the base peeling mechanism 122 is sucked and taken out by the suction pad 134 provided on the hand portion 132a of the robot 132, and is subjected to the photosensitive lamination. Housed in body stocker 136.

  A fan unit (or a duct unit) 102 is attached to the photosensitive laminate stocker 136 on three side surfaces other than the loading and unloading ports. The fan unit 102 blows out neutralizing clean air into the photosensitive laminate stocker 136.

  In the manufacturing apparatus 20, the web feed mechanism 32, the half cut mechanism 36, the label adhesion mechanism 40, the reservoir mechanism 42, the peeling mechanism 44, the tension control mechanism 76, and the detection mechanism 47 are arranged above the pasting mechanism 46. On the contrary, the detection mechanism 47 from the web delivery mechanism 32 is disposed below the attaching mechanism 46 so that the photosensitive web 22 is turned upside down so that the photosensitive resin layer 29 is attached to the glass substrate 24. You may affix on the lower side, and you may comprise the said manufacturing apparatus 20 whole on a straight line.

  The manufacturing apparatus 20 is entirely controlled via a laminating process control unit 140. For each functional unit of the manufacturing apparatus 20, for example, a laminating control unit 142, a substrate heating control unit 144, a base peeling control unit 146, and the like are provided. Provided, and these are connected by an in-process network.

  The laminating process control unit 140 is connected to a factory network, and performs information processing for production such as production management and operation management of instruction information (condition setting and production information) from a factory CPU (not shown).

  The laminating control unit 142 controls each functional unit as a master of the entire process. For example, based on the position information of the half-cut portion 34 of the photosensitive web 22 detected by the detection mechanism 47, for example, the heating mechanism 45. The control mechanism which controls is comprised.

  The base peeling control unit 146 controls the operation of peeling the base film 26 from the sticking substrate 24a supplied from the sticking mechanism 46, and discharging the laminate substrate 130 to the downstream process, and the sticking substrate 24a. In addition, the information of the laminate substrate 130 is controlled to be handled.

  The inside of the manufacturing apparatus 20 is partitioned into a first clean room 152a and a second clean room 152b through a partition wall 150. The first clean room 152a accommodates the web feed mechanism 32 to the tension control mechanism 76, and the second clean room 152b accommodates the detection mechanism 47 and the subsequent elements. The first clean room 152a and the second clean room 152b communicate with each other through the penetrating portion 154.

  The operation of the manufacturing apparatus 20 configured as described above will be described below in relation to the attaching method according to the first embodiment.

  First, as shown in FIG. 1, the photosensitive web 22 is fed out from a photosensitive web roll 22 a attached to the web feed mechanism 32, and the photosensitive web 22 is sent to a half-cut mechanism 36.

  In the half-cut mechanism 36, the slide base 52 moves in the width direction of the photosensitive web 22 (direction orthogonal to the transport direction). For this reason, the rotating round blade 54 rotates while moving in a state where it is cut into the half cut portion 34 of the photosensitive web 22 to a desired depth. As a result, a half-cut portion 34 cut from the protective film 30 to a desired depth is formed in the photosensitive web 22 (see FIG. 2).

  As shown in FIG. 1, the half-cut photosensitive web 22 is conveyed in the direction of arrow A corresponding to the dimension of the remaining portion 30 b of the protective film 30, and then temporarily stopped to run the rotating round blade 54. The next half-cut portion 34 is formed under the action. For this reason, the photosensitive web 22 is provided with a front peeling portion 30aa and a rear peeling portion 30ab across the remaining portion 30b (see FIG. 2).

  Further, the photosensitive web 22 is conveyed to the label adhering mechanism 40, and a predetermined application portion of the protective film 30 is disposed on the receiving table 59. In the label adhering mechanism 40, a predetermined number of adhering labels 38 are adsorbed and held by the adsorbing pads 58a to 58e, and each adhering label 38 straddles the remaining portion 30b of the protective film 30, and the front peeling portion 30aa and the rear peeling portion 30ab. Are integrally bonded to each other (see FIG. 3).

  For example, as shown in FIG. 1, the photosensitive web 22 to which five adhesive labels 38 are bonded is continuously conveyed to the peeling mechanism 44 after the tension on the sending side is prevented via the reservoir mechanism 42. The

  In the peeling mechanism 44, the photosensitive web 22 is sandwiched between the suction drum 62 and the peeling roller 64, and the base film 26 of the photosensitive web 22 is sucked and held by the suction drum 62. In this state, the suction drum 62 is rotated, and a predetermined torque is applied to the protective film 30 via the torque motor 68.

  Therefore, the protective film 30 is peeled off from the photosensitive web 22 leaving the remaining portion 30 b, and taken up on the protective film take-up shaft 66 via the peeling roller 64. In addition, it is preferable to spray static elimination air on a peeling site | part.

  Under the action of the peeling mechanism 44, after the protective film 30 is peeled off from the base film 26 leaving the remaining portion 30b, the photosensitive web 22 is tension-adjusted by a tension control mechanism 76, and further the detection mechanism 47 performs photoelectric conversion. The sensor 82 detects the half-cut region 34.

  In this case, in the first embodiment, the laminating operation is performed along the operation chart shown in FIG.

  In other words, the photosensitive web 22 is under the rotational action of the film transport roller 118a at the start of operation, and thereafter under the rotational action of the substrate transport roller 118b that sandwiches the bonded substrate 24a, based on the detection information of the half-cut portion 34. The fixed amount is conveyed to the pasting mechanism 46. At that time, the contact prevention roller 116 waits upward, and the rubber roller 110b is disposed below.

  On the other hand, in the heating mechanism 45, the heating temperature in each heating furnace 90 is set corresponding to the laminating temperature in the attaching mechanism 46. Therefore, the robot 104 holds the glass substrate 24 accommodated in the substrate stocker 100 and carries the glass substrate 24 into the receiving unit 88. The glass substrate 24 is tact-conveyed sequentially from the receiving unit 88 to each heating furnace 90 under the rotating action of the conveyance roller 86 constituting the conveyance mechanism 84.

  In the heating furnace 90 disposed in the rear stage in the direction of arrow C, the glass substrate 24 is accurately stopped at a predetermined stop position, and the glass substrate 24 is attached to the photosensitive resin layer 29 of the photosensitive web 22. Is temporarily disposed between the rubber rollers 110a and 110b (see FIG. 5).

  In this state, by raising the backup roller 112b and the rubber roller 110b via the roller clamp portion 114, the glass substrate 24 is sandwiched between the rubber rollers 110a and 110b with a predetermined pressing pressure. Further, the photosensitive resin layer 29 is transferred (laminated) to the glass substrate 24 by heating and melting under the rotating action of the rubber roller 110a.

  Here, as the lamination conditions, the speed is 1.0 m / min to 10.0 m / min, the temperature of the rubber rollers 110a and 110b is 80 ° C. to 140 ° C., and the rubber hardness of the rubber rollers 110a and 110b is 40 degrees to 90 degrees, The pressing pressure (linear pressure) of the rubber rollers 110a and 110b is 50 N / cm to 400 N / cm.

  As shown in FIG. 6, when the lamination of one photosensitive web 22 on the glass substrate 24 is completed via the rubber rollers 110a and 110b, the rotation of the rubber roller 110a is stopped. The angular position at which the rubber roller 110a is stopped is referred to as a pasting stop angular position.

  On the other hand, the bonded substrate 24a in which the photosensitive web 22 is laminated on the glass substrate 24 is clamped by the substrate transport roller 118b. Then, the rubber roller 110b is retracted in a direction away from the rubber roller 110a, and the clamp is released.

  Thereby, the lamination process for one sheet is completed (time T1 in FIG. 4), and the predetermined temperature is passed through the heating mechanism 45 during the time (T1 to T4) until the next lamination process is started. The heated glass substrate 24 is conveyed and disposed between the rubber rollers 110a and 110b, and the photosensitive web 22 that is in sliding contact with the rubber roller 110a is finely fed.

  Specifically, as shown in FIG. 4, after a predetermined time T2 has elapsed from the end time T1 of the laminating process, the rubber roller 110a starts to rotate at a low speed. Therefore, the photosensitive web 22 that is in sliding contact with the rubber roller 110a is transferred in the direction of arrow C by a predetermined distance until time T3. At that time, the substrate transport roller 118b is rotated at a low speed in synchronization with the rubber roller 110a, and finely feeds the adhered substrate 24a in the direction of arrow C.

  Further, the next laminating process is started from time T4, and when the time T5 elapses, the next bonded substrate 24a is obtained. Then, during time T6 to time T7, the photosensitive web 22 is finely fed under the rotating action of the rubber roller 110a.

  By the way, after the predetermined number of bonded substrates 24a are obtained, the laminating process may be continuously stopped for a certain time (for example, 90 seconds) or more. For example, the photosensitive web roll 22a accommodated in the web delivery mechanism 32 is replaced with a new photosensitive web roll 22a. When the lamination is stopped, the rear end of the pasting substrate 24a laminated immediately before is disposed in the vicinity of the rubber roller 110a, and the influence of the radiant heat from the rubber roller 110a is likely to occur. Further, the photosensitive web 22 that has been half-cut long (predetermined length) corresponding to the attachment of the substrate upstream is also likely to be affected by radiant heat.

  Therefore, in the first embodiment, the photosensitive web that is discarded after changing the half-cut position when it is known in advance that a laminate stop command is input in a state where the remaining number of glass substrates 24 is known. The process of reducing 22 is performed satisfactorily. Specifically, without stopping the conveyance of the photosensitive web 22, as shown in FIG. 7, the half-cut mechanism 36 is shifted forward from the half-cut part 34b next to the half-cut part 34a formed immediately before by the half-cut mechanism 36. A stop half-cut portion 34c is formed at the position.

  The half-cut part 34a and the stop half-cut part 34c are separated by a certain distance L3. The constant distance L3 is set to be shorter than the predetermined distance L2 between the half-cut portions 34a and 34b and longer than the length affected by the heat from the rubber roller 110a as a heating roller. For example, the constant distance L3 = 1/2 × the predetermined interval L2.

  Next, the photosensitive web 22 in which the half cut part 34 is formed immediately before the region 22b provided between the half cut part 34a and the stop half cut part 34c from the rear end side of the first laminated substrate 24a is as follows. The glass substrate 24 is sequentially pasted and laminated (see times Tn1 to Tn4 in FIG. 4).

  Then, when the region 22b reaches just before the pasting mechanism 46, as shown in FIG. 8, the rubber roller 110b is disposed away from the rubber roller 110a, while the glass substrate 24 is not conveyed between the rubber rollers 110a and 110b. Thus, the rubber roller 110a is rotationally driven (time Tn5 to Tn6 in FIG. 4). The rubber roller 110a is rotationally driven over a predetermined angle range, and the substrate transport roller 118b is rotationally driven in synchronization with the rotation of the rubber roller 110a. For this reason, the pasting board 24a manufactured just before the field 22b moves only a predetermined distance in the direction of arrow C.

  Next, when the substantially central portion of the region 22b is disposed on the outer peripheral surface of the rubber roller 110a, and the separation distance h between the rear end of the pasting substrate 24a and the rubber roller 110a becomes a predetermined distance, the rubber roller 110a and the substrate transport The rotation of the roller 118b is stopped (time Tn6 in FIG. 4).

  Therefore, the rear end portion of the pasting substrate 24a is not exposed to the radiant heat from the rubber roller 110a for a long time, and in particular, the quality of the photosensitive resin layer 29 can be maintained satisfactorily. As a result, it is possible to avoid a thermal effect due to the stop of the rubber roller 110a in a simple process, and to prevent the occurrence of a defective bonded substrate 24a as much as possible, and to obtain a high-quality bonded substrate 24a. The effect that it becomes possible to obtain efficiently and economically is acquired.

  In the first embodiment, when the lamination stops for a predetermined time or longer, the photosensitive web 22 has a stop half-cut set to a constant distance L3 that is shorter than the predetermined distance L2 between the half-cut portions 34. A portion 34c is formed. And if the area | region 22b provided between the half-cut site | part 34a and the half-cut site | part 34c for a stop is arrange | positioned in sliding contact with the outer peripheral surface of the rubber roller 110a, the rotation of the said rubber roller 110a will be stopped.

  Therefore, the range in which the photosensitive web 22 is affected by heat from the rubber roller 110a is considerably shorter than the length of one laminate (corresponding to the predetermined interval L2), for example, the length of 0.5 sheets. (Corresponding to a certain distance L3). Therefore, a portion that can become defective due to radiant heat from the rubber roller 110a can be accommodated within one laminate, and it is possible to effectively prevent a decrease in the yield of the photosensitive web 22.

  Therefore, when a new laminating operation is started, the rubber roller 110a is rotationally driven, and the photosensitive web for a length (for example, 0.5 sheets of laminate) determined to be affected by the heat of the rubber roller 110a. 22, that is, the region 22b is sent in the direction of arrow C. For this reason, the photosensitive web 22 starts a new laminating process on the glass substrate 24 after the region 22b that may be defective is sent downstream of the attachment position.

  As a result, the region 22b of the photosensitive web 22, which is determined to be affected by the heat from the rubber roller 110a in sliding contact with or close to the rubber roller 110a, that is, a defective portion is not laminated on the glass substrate 24. For this reason, there is an advantage that defective bonded substrates 24a can be reduced as much as possible.

  By the way, as shown in FIG. 1, the bonded substrate 24 a having the photosensitive web 22 bonded to the glass substrate 24 is quantitatively conveyed in the direction of arrow C, cooled through the cooling mechanism 120, and then the base peeling mechanism. It is transferred to 122. In this base peeling mechanism 122, the base film 26 and the remaining portion 30 b are peeled off via the robot hand 126 while the sticking substrate 24 a is sucked and held on the suction pad 124, and the multilayer substrate 130 is obtained.

  At that time, static elimination clean air is jetted from the side surfaces in the four directions to the entire laminate portion of the bonding substrate 24a upstream, downstream, and both sides of the suction pad 124. Note that the laminate substrate 130 is held by the hand 132a of the robot 132 and is stored in a predetermined number in the photosensitive laminate stocker 136.

  Next, a method for attaching a laminate according to the second embodiment of the present invention will be described.

  In the second embodiment, similarly to the first embodiment, the manufacturing apparatus 20 is used, and when it is determined that the lamination stop time is continued for a certain time or longer, the sticking closest to the rubber roller 110a is performed. The rear end position of the substrate 24a is separated by a predetermined distance in the direction of arrow C, and the contact prevention roller 116 is driven.

  Specifically, the tension pickup roller 80 is driven in synchronism with the contact prevention roller 116 under the driving action of the cylinder 78 constituting the tension control mechanism 76 in a state where the suction drum 62 is fixed by a brake (not shown). The For this reason, as shown in FIG. 9, when the photosensitive web 22 is separated from the rubber roller 110a by the contact prevention roller 116, the path length of the photosensitive web 22 can be kept constant.

  As described above, in the second embodiment, the photosensitive web 22 is supported by being separated from the rubber roller 110a via the contact prevention roller 116. For this reason, the range in which the photosensitive web 22 (region 22b) is thermally affected by the radiant heat from the rubber roller 110a can be favorably reduced, and the length of the region 22b discarded as a defective portion is made as short as possible. It becomes possible to do.

  Next, a method for attaching a laminate according to the third embodiment of the present invention will be described with reference to FIG. In the third embodiment, the manufacturing apparatus 20 is used as in the first embodiment.

  In the third embodiment, when a laminate stop command is input, the rotation of the rubber roller 110 a is continued without stopping the conveyance of the photosensitive web 22. When the substantially central portion of the predetermined region 22c provided between the half-cut portions 34 and 34a is disposed on the outer peripheral surface of the rubber roller 110a, the rotation of the rubber roller 110a is stopped.

  For this reason, the range in which the photosensitive web 22 is affected by the heat from the rubber roller 110a is reduced to the length of one laminate compared to the conventional two laminates, and the yield reduction of the photosensitive web 22 is effectively prevented. It becomes possible to do. Moreover, it is only necessary to control the rotation of the rubber roller 110a so that the substantially central portion of the predetermined region 22c provided between the half-cut portions 34 and 34a is disposed on the outer peripheral surface of the rubber roller 110a. The effect that it becomes possible to obtain the high-quality bonded substrate 24a efficiently and economically is obtained.

  In the first to third embodiments, the manufacturing apparatus 20 that thermally transfers the photosensitive resin layer 29 of the single long photosensitive web 22 to the glass substrate 24 has been described. However, the present invention is not limited to this. Absent. Although not shown, for example, the same applies to a manufacturing apparatus that thermally transfers the photosensitive resin layers of two or more long photosensitive webs in parallel to the same glass substrate.

It is a schematic block diagram of the manufacturing apparatus for enforcing the bonding method of the laminated body which concerns on the 1st Embodiment of this invention. It is sectional drawing of the elongate photosensitive web used for the said manufacturing apparatus. It is explanatory drawing of the state by which the adhesive label was adhere | attached on the said elongate photosensitive web. It is an operation | movement chart explaining the said sticking method. It is operation | movement explanatory drawing when a glass substrate is arrange | positioned between rubber rollers. It is operation | movement explanatory drawing when the rear end of the said glass substrate spaces apart from between the said rubber rollers. It is explanatory drawing of the half cut site | part formation operation | movement at the time of the lamination stop command entering. It is operation | movement explanatory drawing when a lamination stop is more than fixed time. It is operation | movement explanatory drawing of the bonding method of the laminated body which concerns on the 2nd Embodiment of this invention. It is operation | movement explanatory drawing of the bonding method of the laminated body which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 ... Manufacturing apparatus 22 ... Photosensitive web 22a ... Photosensitive web roll 22b, 22c ... Area | region 24 ... Glass substrate 26 ... Base film 27 ... Cushion layer 29 ... Photosensitive resin layer 30 ... Protective film 32 ... Web delivery mechanism 34, 34a 34b ... Half-cut part 34c ... Stop half-cut part 36 ... Half-cut mechanism 40 ... Label adhesion mechanism 42 ... Reservoir mechanism 44 ... Peeling mechanism 45 ... Heating mechanism 46 ... Pasting mechanism 47 ... Detection mechanism 48 ... Inter-substrate web cutting Mechanism 54 ... Rotating round blade 62 ... Suction drum 64 ... Peeling roller 66 ... Protective film take-up shaft 76 ... Tension control mechanism 84 ... Transport mechanism 110a, 110b ... Rubber roller 116 ... Contact prevention roller 118b ... Substrate transport roller 120 ... Cooling mechanism 122 ... Base peeling mechanism 140 ... Lamination Process control unit 142 ... Laminate control unit 144 ... Substrate heating control unit 146 ... Base peeling control unit

Claims (6)

A method of attaching a long web, wherein the long web is thermocompression bonded to each substrate in a continuous state,
A process of obtaining a laminate by thermocompression bonding a part of the long web to the substrate by pressing and rotating the heating roller disposed at the affixing position on the long web; and
During the sequential production of the laminate, when it is determined that the thermocompression operation of the long web is stopped for a predetermined time or more, the heating roller is further attached by a predetermined angle from the pasting stop angle position. By rotating the rear end of the laminate closest to the heating roller by a desired distance from the heating roller;
A method for attaching a long web characterized by comprising: The pasting method according to claim 1, wherein the elongated web is a multilayer web in which at least a first layer body and a second layer body are laminated,
Forming the half-cut portion at predetermined intervals according to the substrate length by half-cutting the long web, leaving a part in the stacking direction;
When it is determined that the thermocompression operation of the long web is stopped for a predetermined time or longer, at least a part between the half-cut portions is placed on the outer periphery of the heating roller under the rotating action of the heating roller. After disposing, the step of stopping the rotation of the heating roller;
A method for attaching a long web characterized by comprising: The pasting method according to claim 1, wherein the elongated web is a multilayer web in which at least a first layer body and a second layer body are laminated,
Forming the half-cut portion at predetermined intervals according to the substrate length by half-cutting the long web, leaving a part in the stacking direction;
When it is determined that the thermocompression operation of the long web is stopped for a predetermined time or more, a step of forming a stop half-cut portion at a position separated from the half-cut portion by a certain distance;
Under the rotating action of the heating roller, after disposing at least a part between the half-cut part and the stopping half-cut part on the outer periphery of the heating roller, stopping the rotation of the heating roller;
A method for attaching a long web characterized by comprising:   4. The attachment method according to claim 3, wherein the fixed distance between the half-cut portion and the stopping half-cut portion is shorter than the predetermined interval between the half-cut portions, and the thermal influence from the heating roller is reduced. A method for attaching a long web, characterized in that the length is set to be longer than the length to be received.   5. A method according to claim 3, wherein when it is determined that the thermocompression bonding operation of the long web is stopped for a predetermined time or more, the heat from the heating roller is brought into sliding contact with or close to the heating roller. A method for adhering a long web, comprising the step of holding the affected part away from the heating roller. 6. The attachment method according to claim 1, wherein when the attachment operation of the long web is resumed, the heat influence from the heating roller is brought into sliding contact with or close to the heating roller. A step of sending out the heat-affected region of the elongated web determined to have received from the pasting position;
After the heat affected area is sent out from the attachment position, a new area other than the heat affected area of the elongated web is thermocompression bonded to a new substrate under the rotating action of the heating roller; ,
A method for attaching a long web characterized by comprising:

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