JP2020116878A - Print coating device - Google Patents

Abstract

To provide a print coating device that can optimize a transfer state of transfer fluid deposited on a web surface in short time regardless of production conditions and production time, and thereby can form a print layer or a coating layer of good quality on the web surface.SOLUTION: A control panel 9 includes: a memory unit 9a storing a target value of a film thickness of a drying state of adhesives L deposited on a first web X1; a determination unit 9b for determining whether or not dryness of the adhesives L deposited on the first web X1 is insufficient by comparing a detection value detected by a film thickness detection sensor 7a with a target value of the film thickness; and a web speed-changing unit 9c for outputting a speed decrease signal to first web conveyance means 12 to lower a transport speed of the first web X1 when being determined that the dryness of the adhesives L deposited on the first web X1 is insufficient by the determination unit 9b, and, on the other hand, outputting a speed increase signal to the first web conveyance means 12 to increase the transport speed of the first web X1 when being determined that the dryness of the adhesives L deposited on the first web X1 is sufficient.SELECTED DRAWING: Figure 1

Description

The present invention relates to a printing coating device that transfers a transfer liquid such as ink or a coating liquid onto a continuously conveyed web.

Conventionally, a printing coating device that transfers a transfer liquid such as an ink or a coating liquid to a web that is continuously conveyed, in order to stabilize the quality of the transferred web obtained by drying the transfer liquid attached to the web, It is generally known that setup takes time, such as setting the web conveyance speed and the drying temperature.

In order to deal with this, for example, the printing apparatus of Patent Document 1 includes a storage unit capable of storing a set value such as a web transport speed at which the quality of the transferred web is stable, and when a similar printing operation is repeated. Operates each mechanism based on the set value stored in the storage unit to shorten the setup time.

However, in the case of Patent Document 1, it is necessary to perform the setting of each mechanism that is performed first for determining the above-mentioned set value by the intuition and experience of the operator. Therefore, when the same printing work is repeated, the setup time after the second time is shortened based on the setting value stored in the storage unit, but the setup work is performed at the first setup or when a different work is performed. The problem is that the time does not get shorter. In addition, the set value of each mechanism needs to be set to a value that can cope with the temperature and humidity even if they fluctuate. Therefore, if the temperature and humidity fluctuate, the set value of each mechanism will be changed to the ink transfer state. There is a problem that the value will not be the optimum setting value that stabilizes. Further, in general, the optimum set value of each mechanism at the time of starting the operation of the device is different from the optimum set value of each mechanism at the time of normal operation, so that the set value of each mechanism is set to a predetermined value as in Patent Document 1. If fixed, there is also a problem that each mechanism cannot always be operated under optimum conditions from the start of production to the end of production.

In order to deal with these, it is conceivable to change the set value of each mechanism while confirming the transfer state of the transfer liquid adhering to the web. For example, the coating device of Patent Document 2 is provided with a temperature sensor near the exit of the dryer, and the temperature sensor measures the surface of the web that has passed through the dryer. Then, the measured value by the temperature sensor is compared with the previously stored reference value, and when the measured value is lower than the reference value, the temperature of the hot air of the hot air supply means for supplying hot air to the dryer, or the flow velocity. On the other hand, when the measured value is higher than the reference value, the temperature of the hot air of the hot air supply means or the flow velocity is decreased.

JP-A-60-42047 JP, 2001-246306, A

However, in the case of Patent Document 2, the temperature or flow velocity of the hot air of the hot air supply means is controlled, and the response speed at which the temperature of the web surface changes to the target value when the temperature or flow velocity change instruction is given by the control unit is slow. When changing the set value of each mechanism based on the dry state of the coating liquid adhering to the web passing through the dryer, it may take time to bring the dry state to the target state. In particular, at the start of production, such as in the morning, the temperature inside the dryer is low, and therefore it may take a lot of time to bring the coating liquid on the web surface to a sufficiently dry state.

The present invention has been made in view of such a point, and an object thereof is to make the transfer state of the transfer liquid adhering to the web surface an optimum state in a short time regardless of the production conditions and the production time. Another object of the present invention is to provide a printing coating apparatus capable of forming a high quality printing layer or coating layer on the web surface.

In order to achieve the above-mentioned object, the present invention is characterized in that the conveyance speed of the web is changed based on the dry state of the transfer liquid adhering to the web.

That is, in the first aspect of the present invention, a first web conveying means for continuously conveying the first web, a transfer means for transferring the transfer liquid onto the continuously conveyed first web, and a downstream side of the transfer means, A drying unit for drying the transfer liquid adhering to the first web while being continuously conveyed, and a drying unit or a downstream side of the drying unit, which can detect a dry state of the transfer liquid adhering to the first web. The apparatus further comprises a dry state detecting means having at least one detection sensor, and a control means connected to the first web conveying means and the dry state detecting means for activating the first web conveying means, the control means comprising: Drying of the transfer liquid adhering to the first web by comparing the detection value detected by the detection sensor and the target value with a storage unit storing a target value of the dry state of the transfer liquid adhering to the first web. Is determined to be insufficient, and the determination unit determines that the transfer liquid adhering to the first web is insufficiently dried based on the detection value of at least one of the detection sensors. While the speed reduction signal is output to the first web conveying means to decrease the conveyance speed of the first web, the transfer liquid adhering to the first web is not sufficiently dried at the detection values of all the detection sensors. If it is determined that there is a web speed changing unit that outputs a speed increase signal to the first web transfer means to increase the transfer speed of the first web.

In a second aspect based on the first aspect, the transfer means includes a plate cylinder that transfers the transfer liquid attached to the outer peripheral surface while rotating with respect to the continuously conveyed first web, and an outer periphery of the plate cylinder. A doctor blade for scraping off and removing excess transfer liquid that comes into contact with the surface and adheres to the outer peripheral surface by the rotating operation of the plate cylinder, and the doctor blade has a tip thereof with respect to the rotation direction of the plate cylinder. Contacting the outer peripheral surface of the plate cylinder so as to face the opposite direction and form an acute angle with respect to the outer peripheral surface of the plate cylinder when viewed in the extension direction of the rotation axis of the plate cylinder. It is characterized by

In a third aspect based on the first or second aspect, the transfer liquid contains an organic solvent, and the dry state detecting means is characterized in that the transfer liquid attached to the first web is the dry means. An organic solvent detection sensor for detecting the amount of the organic solvent vaporized from the transfer liquid during drying is provided, the storage unit stores the target value of the residual organic solvent amount, and the determination unit is the organic solvent detection sensor. If the detected value detected in step 1 is larger than the target value, it is determined that the transfer liquid adhering to the first web is not sufficiently dried, while if it is smaller than the target value, the first web is It is characterized in that it is configured to judge that the attached transfer liquid is sufficiently dried.

In a fourth invention according to any one of the first to third inventions, the dry state detecting means includes a film thickness detection sensor for detecting a film thickness of the transfer liquid adhering to the first web, and the memory is provided. A target value of the film thickness of the transfer liquid to be adhered to the first web is stored in the section, and the determination unit determines, when the detected value detected by the film thickness detection sensor is larger than the target value, the first value. While it is determined that the transfer liquid adhering to one web is not sufficiently dried, if the detected value is smaller than the target value, it is determined that the transfer liquid adhering to the first web is sufficiently dried. It is characterized in that it is configured as follows.

In a fifth invention, in any one of the first to fourth inventions, it further comprises a second web transport means for continuously transporting the second web, and the transfer means transfers the adhesive to the first web. A coating unit, wherein the first web conveying means and the second web conveying means sandwich the first web and the second web in an overlapping manner and move the same in the same direction by a rotating operation to apply the adhesive. It is characterized by comprising a first laminating roll and a second laminating roll which are used to obtain a laminated product.

In the first aspect of the present invention, the conveyance speed of the first web conveying means is controlled based on the dry state of the transfer liquid adhering to the web surface. When the speed changing instruction is issued by the control means, the web conveying speed reaches the target speed. Since the changing response speed is fast, the dry state of the transfer liquid can be brought to a target state without taking time. Further, since the web transport speed is changed based on the dry state of the transfer liquid adhering to the web that has passed through the drying means, even if the temperature or humidity changes or the production time is different, The transfer liquid adheres to the web at an optimum web conveyance speed based on the dry state of the transfer liquid. Therefore, it is not necessary to set the web transport speed or the like according to the intuition or experience of the operator, the setup time can be shortened, and a good quality printing layer or coating layer can be formed on the web surface.

According to the second aspect of the invention, when the web transport speed is changed as compared with the case where the doctor blade is brought into contact with the outer peripheral surface of the plate cylinder so that the tip of the doctor blade is oriented in the same direction as the rotation direction of the plate cylinder. Therefore, the gap formed between the doctor blade and the outer peripheral surface of the plate cylinder hardly changes. Therefore, it is possible to stabilize the transfer amount of the transfer liquid onto the web when the web transport speed is changed based on the dry state of the transfer liquid adhering to the web surface.

In the third invention, since the web transfer speed can be maximized while producing a transferred web containing no or almost no organic solvent in the dried transfer liquid, for example, the odor of the organic solvent is not generated. In the case of producing a transcribed web used for a food-based packaging material that requires the above, the transfer liquid can be efficiently transcribed to the web.

According to the fourth aspect of the present invention, since the web conveyance speed can be maximized while manufacturing the transferred web so that the transfer state of the transfer liquid onto the web surface does not vary, it is possible to efficiently manufacture the transferred web with good quality. it can.

In the fifth aspect, the first web and the second web can be overlapped with each other in an optimal transfer state of the adhesive transferred to the first web, so that a laminated product having uniform quality can be efficiently manufactured. be able to.

1 is a schematic configuration diagram of a coating apparatus for dry laminating according to a first embodiment of the present invention. It is a figure corresponding to FIG. 1 which concerns on Embodiment 2 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiments is merely exemplary in nature.

<<Embodiment 1 of the Invention>>
FIG. 1 shows a coating apparatus 1 for dry lamination according to Embodiment 1 of the present invention. The coating apparatus 1 uses an adhesive L (transfer liquid) containing an organic solvent to continuously convey two long flexible first webs X1 and second webs Y1 to each other. The laminated product Z1 is manufactured by laminating them together.

The coating apparatus 1 includes a first unwinding roll 2 that continuously unwinds the first web X1 and a second unwinding roll 3 that continuously unwinds the second web Y1. The laminating device 4 for laminating the first web X1 and the second web Y1 is arranged at the intersection of the first web X1 unwound from the second unwinding roll 2 and the second web Y1 unwound from the second unwinding roll 3. Has been done.

The first unwinding roll 2 is configured to be rotationally driven by a first drive motor 2a, and the first web X1 unwound from the first unwinding roll 2 is wound around a plurality of first guide rolls 11a. While being conveyed, it is continuously conveyed to the laminating apparatus 4.

On the other hand, the second unwinding roll 3 is rotatably driven by the second drive motor 3a, and the second web Y1 unwound from the second unwinding roll 3 becomes a plurality of second guide rolls 11b. It is adapted to be continuously conveyed to the laminating apparatus 4 while being wound.

A coating unit 5 (transfer means), a drying unit 6 (drying means) and a dry state detecting unit 7 (dry state detecting means) are provided between the first unwinding roll 2 and the laminating device 4 on the first web X1. They are arranged in order from the upstream side along the transport direction.

The coating unit 5 is configured to apply a coating method called a gravure coating method (direct gravure method), and includes a plate cylinder 5a that rotates in the same direction as the transport direction of the first web X1 and a first web. A coating chamber 5b having a substantially rectangular parallelepiped shape extending in the width direction of X1 and an impression cylinder 5f for pressing the first web X1 onto the plate cylinder 5a from above are provided.

The plate cylinder 5a is rotationally driven by a lower drive motor 5g, while the impression cylinder 5f is rotationally driven by an upper drive motor 5h.

The coating chamber 5b is provided with a liquid reservoir 5e for storing the adhesive L, and the liquid reservoir 5e is open to the plate cylinder 5a side. The plate cylinder 5a is arranged close to the coating chamber 5b so that a part of the outer peripheral surface thereof is immersed in the adhesive L of the liquid reservoir 5e.

In the lower part of the coating chamber 5b, a plate-shaped seal plate 5c is provided so as to project obliquely upward from the peripheral edge of the lower end side of the opening of the liquid reservoir 5e, and the tip of the seal plate 5c is rotated when the plate cylinder 5a is rotated. The upstream side of the liquid reservoir 5e in the roll rotation direction is sealed by sliding contact with the outer peripheral surface of the plate cylinder 5a.

On the other hand, in the upper part of the coating chamber 5b, a plate-shaped doctor blade 5d is provided so as to project obliquely downward from the peripheral edge of the upper end side of the opening of the liquid reservoir 5e.

The doctor blade 5d has an acute angle with respect to the outer peripheral surface of the plate cylinder 5a when viewed in the direction of extension of the rotation axis of the plate cylinder 5a such that its tip faces in the direction opposite to the rotation direction of the plate cylinder 5a. It contacts the outer peripheral surface of the plate cylinder 5a so as to be in a posture and seals the downstream side of the liquid reservoir 5e in the roll rotation direction, and the tip of the doctor blade 5d is rotated when the plate cylinder 5a is rotated. The excess adhesive L attached to the outer peripheral surface of the plate cylinder 5a is scraped off and removed by sliding contact with the plate cylinder 5a.

Then, the first web X1 is sandwiched between the plate cylinder 5a and the impression cylinder 5f, and the first web X1 is substantially viewed from the front by the rotation operation of the plate cylinder 5a and the impression cylinder 5f by the lower drive motor 5g and the upper drive motor 5h. The adhesive L adhering to the outer peripheral surface of the plate cylinder 5a is transferred to the coated surface of the first web X1 (overlapping surface with the second web Y1) while moving in a V shape. In the present invention, the adhesive L is attached to the first web X1 in an amount of 2.0 to 5.0 g/m ² .

The drying unit 6 includes a first drying box 6a, a second drying box 6b, and a third drying box 6c that extend in the horizontal direction and have a substantially rectangular parallelepiped shape. The first drying box 6a, the second drying box 6b, and the third drying box are provided. 6c are horizontally arranged in order along the transport direction of the first web X1.

A first exhaust duct D1, a second exhaust duct D2, and a third exhaust duct D3 are provided on the downstream side walls of the first drying box 6a, the second drying box 6b, and the third drying box 6c, respectively.

Nozzles (not shown) capable of supplying hot air are provided inside the first drying box 6a, the second drying box 6b, and the third drying box 6c, respectively, and hot air is continuously conveyed from the nozzles. The adhesive L attached to the first web X1 is dried by discharging it toward the surface of the first web X1 to be coated.

The dry state detection unit 7 is provided on the downstream side of the third drying box 6c, and has a film thickness detection sensor 7a capable of detecting the film thickness of the adhesive L attached to the first web X1, and the film thickness detection sensor 7a. Is fixed to one end and has a substantially V-shaped fixed bracket 7b in a front view, a slider 7c having the other end of the fixed bracket 7b fixed to the upper surface, and the slider 7c along the width direction of the first web X1. And a slide rail 7d that slidably supports it.

The film thickness detection sensor 7a is an infrared film thickness meter, and a specific product thereof is a model: RX-200 manufactured by Kurashiki Spinning Co., Ltd.

The film thickness detection sensor 7a faces the inside of the third drying box 6c, and the film thickness of the adhesive L attached to the surface to be coated of the first web X1 that is wound around the first guide roll 11a and is directed obliquely downward. Is detected diagonally from above.

That is, the film thickness detection sensor 7a can detect the dry state of the adhesive L attached to the first web X1.

Further, the slider 7c can be manually slid on the slide rail 7d along the width direction of the first web X1, and the sliding operation of the slider 7c allows the first web X1 in the film thickness detection sensor 7a to be moved. Can be changed in the width direction of the first web X1. Although the slider 7c is manually slid in the first embodiment of the present invention, the slider 7c may be slid automatically by using an electric motor or the like.

The laminating apparatus 4 includes a first laminating roll 4a and a second laminating roll 4b which are arranged side by side vertically, and the first laminating roll 4a and the second laminating roll 4b are respectively provided with a first laminating roll 4a and a second laminating roll 4b. The third drive motor 4c and the fourth drive motor 4d are rotationally driven.

The first bonding roll 4a and the second bonding roll 4b are rotatably driven by the third drive motor 4c and the fourth drive motor 4d to sandwich and sandwich the first web X1 and the second web Y1. The laminated product Z1 is manufactured by adhering with the adhesive L while moving the same in the same direction by the rotating operation.

On the downstream side of the laminating apparatus 4, there is provided a winding roll 8 for winding the laminated product Z1 which is continuously conveyed while being wound around a plurality of third guide rolls 11c. It is adapted to be rotationally driven by a motor 8a.

In addition, the 1st web conveyance means 12 of this invention is the 1st unwinding roll 2, the 1st guide roll 11a, the plate cylinder 5a, the impression cylinder 5f, the 1st bonding roll 4a, the 2nd bonding roll 4b, and. On the other hand, the second web transporting means 13 of the present invention includes the second winding roll 3, the second guide roll 11b, the first bonding roll 4a, the second bonding roll 4b, and the winding roll 8. It is composed of a winding roll 8.

A control panel 9 (control means) is connected to the first unwinding roll 2, the second unwinding roll 3, the laminating device 4, the coating unit 5, the drying unit 6, the dry state detecting unit 7, and the winding roll 8. The control panel 9 outputs an operation signal to the first unwinding roll 2, the second unwinding roll 3, the laminating device 4, the coating unit 5, the drying unit 6 and the winding roll 8.

The control panel 9 controls the rotation of the first drive motor 2a, the second drive motor 3a, the third drive motor 4c, the fourth drive motor 4d, the fifth drive motor 8a, the lower drive motor 5g, and the upper drive motor 5h. By controlling, the transport speeds of the first web X1 and the second web Y1 can be changed. The control panel 9 controls the transport speeds of the first web X1 and the second web Y1 so as not to exceed 250 m/min.

Further, the control panel 9 stores the target value of the film thickness of the adhesive L attached to the first web X1 in the film thickness detection sensor 7a in the dry state, and the detection detected by the film thickness detection sensor 7a. And a determination unit 9b that compares the value with the target value stored in the storage unit 9a to determine whether the adhesive L attached to the first web X1 is insufficiently dried.

Specifically, if the detection value detected by the film thickness detection sensor 7a is larger than the target value of the film thickness, the control panel 9 determines that the adhesive L attached to the first web X1 is not sufficiently dried. On the other hand, if the detected value is smaller than the target value of the film thickness, it is determined that the adhesive L attached to the first web X1 is sufficiently dried.

Further, when the determination unit 9b determines that the adhesive L adhering to the first web X1 is insufficiently dried by the determination unit 9b, the control panel 9 causes the first web transport unit 12 to operate. While outputting the speed decrease signal to decrease the conveyance speed of the first web X1, when it is determined that the adhesive L attached to the first web X1 is sufficiently dried, the speed is increased to the first web conveyance means 12. A web speed changing unit 9c that outputs a signal to increase the transport speed of the first web X1 is provided.

As described above, according to the first embodiment of the present invention, it is the transport speed of the first web transport means 12 that is controlled based on the dry state of the adhesive L adhering to the surface of the first web X1, and the speed controlled by the control panel 9. Since the response speed at which the transport speed of the first web X1 changes to the target speed at the time of the change instruction is fast, the dry state of the adhesive L can be brought to the target state without taking time.

Further, since the transport speed of the first web X1 is changed based on the dry state of the adhesive L attached to the first web X1 that has passed through the drying unit 6, the temperature and humidity change or the production time is different. Even in such a case, the adhesive L adheres to the first web X1 at the optimum conveyance speed of the first web X1 based on the dry state of the adhesive L at each time. Therefore, it is not necessary to set the conveying speed and the like of the first web X1 according to the intuition and experience of the operator, the setup time can be shortened, and a good quality coating layer can be formed on the surface of the first web X1. You can

In addition, since the transfer speed of the first web X1 can be maximized while manufacturing the transferred first web X1 so that the transfer state of the adhesive L on the surface of the first web X1 does not vary, a high quality transfer is achieved. The completed first web X1 can be efficiently manufactured.

Further, since the doctor blade 5d is brought into contact with the outer peripheral surface of the plate cylinder 5a so that the tip of the doctor blade 5d faces in the direction opposite to the rotation direction of the plate cylinder 5a, the tip of the doctor blade 5d is Compared to the case where the doctor blade 5d is brought into contact with the outer peripheral surface of the plate cylinder 5a so as to face the same direction as the rotation direction, when the transport speed of the first web X1 changes, the doctor blade 5d and the plate cylinder 5a It becomes difficult for the gap formed between the outer peripheral surface and the outer peripheral surface to fluctuate. Therefore, the transfer amount of the adhesive L to the first web X1 when the transport speed of the first web X1 is changed based on the dry state of the adhesive L adhering to the surface of the first web X1 can be stabilized. ..

In addition, the first web X1 and the second web Y1 can be overlapped with each other in an optimal transfer state of the adhesive L to be transferred to the first web X1, so that the laminated product Z1 having uniform quality can be efficiently manufactured. It can be manufactured well.

In the first embodiment of the present invention, the film thickness detection sensor 7a is arranged in the third drying box 6c of the drying unit 6 to detect the film thickness of the adhesive L attached to the first web X1. The film thickness detection sensor 7a may be arranged at a position outside the third drying box 6c on the downstream side of the third drying box 6c.

<<Embodiment 2 of the Invention>>
FIG. 2 shows a coating apparatus 1 according to the second embodiment of the present invention. In the second embodiment, the sensor for detecting the dry state of the adhesive L attached to the first web X1 is not the film thickness detection sensor 7a but the organic solvent detection sensor 14 and the control of the control panel 9 is the embodiment. Since the second embodiment is the same as the first embodiment except that it is different from the first embodiment, only the part different from the first embodiment will be described below.

The organic solvent detection sensor 14 is attached to the first exhaust duct D1 of the first drying box 6a in the drying unit 6 of the second embodiment, and the organic solvent detection sensor 14 has the adhesive L attached to the first web X1. The amount of the organic solvent vaporized during drying in the first drying box 6a is detected. A specific product of the organic solvent detection sensor 14 is a model: SD-D58 manufactured by Riken Keiki Co., Ltd.

In the storage unit 9a of the control panel 9 of the second embodiment, the target value of the residual organic solvent amount is stored as 20 ppm.

Then, when the detection value detected by the organic solvent detection sensor 14 is larger than the target value, the determination unit 9b of the control panel 9 of the second embodiment does not sufficiently dry the adhesive L adhering to the first web X1. On the other hand, if it is determined that the adhesive L is smaller than the target value, it is determined that the adhesive L attached to the first web X1 is sufficiently dried.

As described above, according to the second embodiment of the present invention, the transport speed of the first web X1 while manufacturing the transferred first web X1 in which the dried adhesive L does not contain or hardly contains the organic solvent. Therefore, for example, in the case of producing the transferred first web X1 used for a food-based packaging material in which it is necessary to prevent the smell of the organic solvent from being emitted, the first web X1 can be efficiently formed. The transfer liquid can be transferred.

In the second embodiment of the present invention, the organic solvent detection sensor 14 is attached to the first exhaust duct D1 of the first drying box 6a in the drying unit 6, but the second exhaust duct D2 and the second exhaust box D2 of the second drying box 6b are attached. The organic solvent detection sensor 14 may be attached to the third exhaust duct D3 of the 3-drying box 6c.

Further, in the second embodiment of the present invention, the target value of the residual organic solvent amount is set to 20 ppm, but other values may be used.

Further, the coating apparatus 1 according to the second embodiment of the present invention may be provided with the dry state detection unit 7 according to the first embodiment. In this case, the web speed changing unit 9c of the control panel 9 does not dry the adhesive L adhering to the first web X1 according to the detection value of at least one of the film thickness detection sensor 7a and the organic solvent detection sensor 14 by the determination unit 9b. When it is determined that the speed is sufficient, the speed reduction signal is output to the first web transfer means 12 to decrease the transfer speed of the first web X1, while detecting both the film thickness detection sensor 7a and the organic solvent detection sensor 14. When it is determined that the transfer liquid adhering to the first web X1 is sufficiently dried, a speed increase signal is output to the first web transfer means 12 to increase the transfer speed of the first web X1. ..

The structure for changing the transport speed of the first web X1 based on the dry state of the transfer liquid transferred to the first web X1 applied to the coating apparatus 1 in the first and second embodiments of the present invention is the first web X1. It can also be used as a printing device for printing on.

INDUSTRIAL APPLICABILITY The present invention is suitable for a printing coating apparatus that transfers a transfer liquid such as ink or a coating liquid onto a continuously conveyed web.

1 coating device (printing coating device)
4a 1st bonding roll 4b 2nd bonding roll 5 Coating unit (transfer means)
5a Plate cylinder 5d Doctor blade 6 Drying unit (drying means)
7 Dry state detection unit (dry state detection means)
7a Film thickness detection sensor 9 Control panel (control means)
9a Storage part 9b Judgment part 9c Web speed change part 12 1st web conveyance means 13 2nd web conveyance means 14 Organic solvent detection sensor X1 1st web Y1 2nd web Z1 Laminated product

Claims (5)

A first web conveying means for continuously conveying the first web,
Transfer means for transferring the transfer liquid onto the continuously conveyed first web,
A drying means provided on the downstream side of the transfer means for drying the transfer liquid attached to the first web while continuously conveying the transfer liquid;
A dry state detecting means which is provided on the drying means or on the downstream side of the drying means and has at least one detection sensor capable of detecting the dry state of the transfer liquid adhering to the first web;
A control means that is connected to the first web conveying means and the dry state detecting means, and that operates the first web conveying means,
The control means compares the detected value detected by the detection sensor and the target value with a storage unit that stores the target value of the dry state of the transfer liquid that adheres to the first web, and compares the detected value with the target value. A determination unit that determines whether or not the transfer liquid that adheres is insufficiently dried, and the determination unit determines that the transfer liquid that has adhered to the first web is insufficiently dried based on the detection value of at least one of the detection sensors. When it is determined that the transfer speed is low, the speed reduction signal is output to the first web transfer means to decrease the transfer speed of the first web, and at the same time, the transfer values adhered to the first web based on the detection values of all the detection sensors. When it is determined that the liquid is sufficiently dried, a web speed changing unit that outputs a speed increase signal to the first web transfer means to increase the transfer speed of the first web is provided. Printing coating equipment. The printing coating apparatus according to claim 1,
The transfer means includes a plate cylinder that transfers the transfer liquid that adheres to the outer peripheral surface while rotating with respect to the first web that is continuously conveyed, and an extra portion that contacts the outer peripheral surface of the plate cylinder and adheres to the outer peripheral surface. Equipped with a doctor blade that scrapes and removes the transfer liquid by rotating the plate cylinder,
The doctor blade has an acute angle with respect to the outer peripheral surface of the plate cylinder as viewed in the extension direction of the rotation axis of the plate cylinder, with its tip facing in the direction opposite to the rotation direction of the plate cylinder. A printing coating apparatus, wherein the printing coating apparatus is in contact with the outer peripheral surface of the plate cylinder in a posture. The printing coating apparatus according to claim 1 or 2,
The transfer liquid contains an organic solvent,
The dry state detecting means includes an organic solvent detection sensor for detecting the amount of the organic solvent vaporized from the transfer liquid when the transfer liquid adhering to the first web is dried in the drying means,
The storage unit stores a target value of the amount of residual organic solvent,
When the detection value detected by the organic solvent detection sensor is larger than the target value, the determination unit determines that the transfer liquid adhering to the first web is insufficiently dried, while When the size is small, the printing coating apparatus is configured to determine that the transfer liquid adhering to the first web is sufficiently dried. The printing coating apparatus according to any one of claims 1 to 3,
The dry state detecting means includes a film thickness detecting sensor for detecting a film thickness of the transfer liquid attached to the first web,
The target value of the film thickness of the transfer liquid to be attached to the first web is stored in the storage unit,
When the detection value detected by the film thickness detection sensor is larger than the target value, the determination unit determines that the transfer liquid adhering to the first web is insufficiently dried, while the detection value is The printing coating apparatus is configured to determine that the transfer liquid adhering to the first web is sufficiently dried when it is smaller than the target value. The printing coating apparatus according to any one of claims 1 to 4,
Further comprising a second web transporting means for continuously transporting the second web,
The transfer means is a coating unit that transfers an adhesive to the first web,
The first web transporting means and the second web transporting means are laminated by sandwiching the first web and the second web in an overlapping manner and by using a rotating operation to move them in the same direction while using the adhesive to bond them together. A printing coating device comprising a first laminating roll and a second laminating roll for obtaining a product.