KR20230167326A - Coating type laminator - Google Patents

Abstract

In the present invention, the coating solution (2) is applied to the continuously transported roll film (3), the roll film (3) coated with the coating solution (2) is laminated on the paper (1) continuously supplied as a single sheet, and then the paper (1) is again applied. It relates to a coating liquid application type laminator that produces paper (1) coated with a coating liquid (2) by separating only the roll film (3) from the roll film (3), where the roll film (3) coated with the coating liquid (2) is dried in the application unit (11). In the process of being transferred to the laminating unit 41 through the unit 21, the coating liquid 2 applied to the roll film 3 is dried to a semi-dry state by heating of the dryer 22 included in the drying unit 21, The roll film (3) and paper (1) to which the semi-dry coating liquid (2) is applied between the heating roller (42) and the pressing roller (43) formed in the laminating part (41) are laminated in a heated and pressurized state, forming a semi-dry state. The coating liquid (2) is completely dried at the same time that a part of the joint surface is pressed into the paper (1), and the laminated paper (1) and roll film (3) are transferred to the peeling unit (51) and separated from the paper (1). The roll film (3) is separated.

Description

Coating liquid application type laminator {COATING TYPE LAMINATOR}

In the present invention, the coating solution (2) is applied to the continuously transported roll film (3), the roll film (3) coated with the coating solution (2) is laminated on the paper (1) continuously supplied as a single sheet, and then the paper (1) is again applied. It relates to a coating liquid application type laminator that produces paper (1) coated with a coating liquid (2) by separating only the roll film (3) from the roll film (3), where the roll film (3) coated with the coating liquid (2) is dried in the application unit (11). In the process of being transferred to the laminating unit 41 through the unit 21, the coating liquid 2 applied to the roll film 3 is dried to a semi-dry state by heating of the dryer 22 included in the drying unit 21, The roll film (3) and paper (1) to which the semi-dry coating liquid (2) is applied between the heating roller (42) and the pressing roller (43) formed in the laminating part (41) are laminated in a heated and pressurized state, forming a semi-dry state. The coating liquid (2) is completely dried at the same time that a part of the joint surface is pressed into the paper (1), and the laminated paper (1) and roll film (3) are transferred to the peeling unit (51) and separated from the paper (1). The roll film (3) is separated.

A laminator is a device that attaches a film to the surface of printed paper. The paper with the film attached is protected from various contaminants, and the gloss of the film makes advertisements printed on the paper stand out, so it is widely used in flyers and book covers. However, when landfilled, the film does not decompose easily, unlike regular paper, so it pollutes the soil and causes environmental pollution such as harmful gases being generated from the film when incinerated. Paper recycling is difficult because it is difficult to remove the film attached to the paper. There is this impossible problem.

To solve this problem, a laminator has been developed that can obtain a film-like effect by applying a biodegradable coating liquid to paper. Patent No. 1110423 is a related prior art.

The coating liquid application type laminator applies the coating liquid directly to the surface of the paper and then dries and hardens it. As in Patent No. 1110423, the paper is heated several times in stages, the coating liquid is applied directly to the heated paper, and then the coating liquid is applied with a pressure roller. Since this is a method of coating paper with a coating liquid by applying pressure, paper that is directly heated to a high temperature has problems such as the color of printed matter printed on the paper being deformed.

In particular, the conventional laminator requires heating the paper several times in each step before applying the coating solution, so multiple heating devices are required, making it difficult to miniaturize, the structure of the laminator is complicated, enormous manufacturing costs are required, and the paper Due to the nature of the coating solution being applied directly to the surface, the coating quality was not uniform, and the working speed could not be increased.

The present invention was created in consideration of the above-mentioned problems, and includes an applicator 11 that applies the coating solution 2 to the roll film 3 while the application roller 13 on which the coating solution 2 is applied rotates, and a coating solution 2 ) is applied to the drying unit 21, which dries the roll film 3 during the transfer process, and the paper 1 continuously supplied from the paper feeding unit 31 and the roll film 3 transferred from the drying unit 21 are heated with a heating roller ( After the paper (1) on which the lamination unit (41) and the roll film (3) are laminated through 42) and the pressure roller (43) passes through the application unit (11), only the roll film (3) is separated from the paper (1). In the coating liquid application type laminator consisting of a peeling unit 51 for separating and loading the paper 1 coated with the coating liquid 2 into the loading unit 61, the coating liquid 2 is applied in the application unit 11. In the process of transferring the roll film 3 to the laminating unit 41 through the drying unit 21, the coating liquid 2 applied to the roll film 3 is returned by heating of the dryer 22 included in the drying unit 21. It is dried in a dry state, and in the process of passing the roll film (3) and the paper (1) together between the heating roller (42) and the pressing roller (43) formed in the laminating portion (41), the heating roller (42) and the pressing roller (43) ) is a coating liquid application type laminator, characterized in that a portion of the coating liquid (2) in a semi-dry state is completely dried by heating and pressurizing.

In addition, the present invention is a lifting roller that is rotated by pressing the back side of the roll film (3) on which the coating solution (2) is applied to the upper part of the application roller (13) of the applicator (11) for applying the coating solution (2) to the roll film (3). (14) is configured, and the lifting roller (14) is configured with an actuator (15) that moves the lifting roller (14) up and down, and the actuator (15) controls the thickness of the coating liquid (2) applied to the roll film (3). A detection sensor (19) is configured to measure the thickness of the coating liquid (2) applied to the roll film (3), and the actuator (15) measures the thickness of the coating liquid (2) applied to the roll film (3), and the actuator (15) measures the thickness of the coating liquid (2) applied to the roll film (3). This is a coating liquid application type laminator that is configured to adjust the thickness of the coating liquid (2) applied to the roll film (3) by moving the lifting roller (14).

In addition, in the present invention, the peeling unit 51 includes a paper transfer belt 58 that transfers the paper 1 from the peeling unit 51 to the loading unit 61 by driving the belt drive device 55, and the upper On the lower side of the paper transfer belt 58, an adsorption device 56 is provided to suction the paper 1 being moved to the paper transfer belt 58 so that it moves in close contact with the paper transfer belt 58. This is a coating liquid application type laminator that is configured to move in close contact with the transfer belt 58 so that the roll film 3 is smoothly separated from the paper 1.

In the present invention, the coating liquid (2) applied to the roll film (3) is dried in a semi-dry state, and the roll film (3) and the paper (1) on which the semi-dry coating liquid (2) is applied are heated and pressed together to form a coating liquid ( 2) Since a portion is coated by pressing and penetrating the surface of the paper 1, the quality of the coating is excellent, manufacturing costs are reduced through a simple process, and workability is excellent.

In addition, unlike conventional coatings with synthetic resin films, paper coated through the present invention has the advantage of being recyclable and not causing environmental pollution even when landfilled or incinerated.

1 is an explanatory diagram illustrating the overall configuration of the present invention.
Figure 2 is an explanatory diagram of a state in which a plurality of heating rollers and pressure rollers are configured in the laminating part of the present invention
Figure 3 is an explanatory diagram illustrating a configuration including an adsorption device in the peeling part of the present invention.

The detailed configuration of the present invention will be described through the attached drawings as follows.

First, Figure 1 is an explanatory diagram showing the overall configuration of the present invention. As shown, the coating liquid application laminator of the present invention largely consists of an application part 11, a drying part 21, a feeding part 31, and a laminating part 41. ), a peeling part 51, and a loading part 61. First, the configuration of the application part 11 is described as follows.

The applicator 11 is a device for applying the coating liquid 2 to the roll film 3. The roll film 3 is mounted on one side of the applicator 11, and the roll film 3 is continuously supplied to the applicator roller 13. A paper feeding roller 12 is formed on the other side of the applicator 11, and a winding roller 18 is formed on the other side of the applicator 11 to continuously wind the roll film 3 transferred from the peeling part 51, and the inside of the applicator 11 There is a coating liquid container 16 in which the coating liquid 2 is accommodated, and the upper part of the coating liquid container 16 is immersed in the coating liquid 2, and the coating liquid 2 is applied to the roll film 3 supplied from the feeding roller 12. An application roller (13) is configured to continuously apply the film and transfer it to the drying unit (21). The upper part of the application roller (13) presses the back side of the roll film (3) in contact with the application roller (13) to form the roll film (3). A pair of lifting rollers 14 that guide the coating liquid 2 to be applied at a certain thickness are connected to each other, and an actuator 15 that moves the lifting roller 14 up and down is located on the upper part of the lifting roller 14. It is configured, and on one side of the actuator 15, there is a detection sensor 19 that measures the thickness of the coating liquid 2 applied to the roll film 3 and operates the actuator 15 according to the measured thickness of the coating liquid 2. It is configured to have a blade 17 on one side of the application roller 13 that contacts the application roller 13 and removes the coating liquid 2 applied to the application roller 13, and on the lower part of the coating liquid container 16. The roll film 3, which will be described later, and the laminated paper 1 are configured to pass from the lamination unit 41 to the loading unit 61.

The lifting roller 14, the actuator 15, and the detection sensor 19 are interlocked to constantly control the thickness of the coating liquid 2 applied to the roll film 3, and the detection sensor 19 is used to control the thickness of the coating liquid 2 applied to the roll film 3. ), the actuator 15 receives a signal from the detection sensor 19 to raise the lifting roller 14, and conversely, the coating liquid 2 applied to the roll film 3 is measured to be thicker than the set thickness. When the thickness of the coating liquid 2 is measured to be thinner than the set thickness, the actuator 15 receives a signal from the detection sensor 19 and lowers the lifting roller 14.

Accordingly, the roll film 3 can adjust the thickness of the applied coating liquid 2 to a constant level by moving closer to or away from the application roller 13 by the elevation of the lifting roller 14, thereby preventing defects.

The drying unit 21 is a tunnel-shaped device that semi-dries the liquid coating solution (2) applied to the roll film (3) during the process of transferring the roll film (3) transferred from the application unit (11) to the laminating unit (41). As, one side end is connected to the top of the applicator 11 through a vertical tunnel, and the other side end is also connected to the top of the lamination part 41 through a vertical tunnel, and between the applicator 11 and the lamination part 41 It is formed as a horizontal tunnel, and inside it is composed of a conveyed roll film (3) and a dryer (22) that heats the coating solution (2) coated on the roll film (3) to semi-dry the coating solution (2). This drying unit ( Since 21) is installed in an inverted "U" shape on the upper part of the application part 11 and the laminating part 41, the installation area is greatly reduced compared to the general straight drying part 21, so miniaturization is possible.

The laminating unit 41 is a device in which the roll film 3 on which the coating solution 2 is applied in a semi-dry state transferred from the drying unit 21 and the sheet of paper 1 are laminated, and inside is a half of the roll film 3. A heating roller 42 is configured to heat the dry coating liquid 2, and a pressure roller 43 that rotates in contact with the heating roller 42 is configured at the lower part of the heating roller 42, and the heating roller 42 and The roll film 3 transferred from the drying unit 21 and the paper 1 transferred from the paper feeding unit 31 are passed between the pressure rollers 43 while being heated and pressed together. At this time, the semi-dry coating liquid (2) ) penetrates into the paper (1) and is dried at the same time as it is pressed and penetrated, and the laminated paper (1) and roll film (3) pass through the application unit (11) and are transferred to the peeling unit (51). do.

The peeling unit 51 is a device that separates only the roll film 3 from the paper 1 transferred from the lamination unit 41. The paper 1 with the roll film 3 attached is attached to the peeling unit 51. A pair of pressure transfer rollers 52 are engaged and rotated up and down to allow transfer, and on the rear upper side of the pressure transfer roller 52, roll film 3 is transferred from the paper 1 while being pressed by the pressure transfer roller 52. ) is configured to separate the peeling guide roller 53 and guide it to the winding roller 18 of the application unit 11, and the paper (1) from which the roll film (3) is separated is placed on the lower side of the peeling guide roller (53). A paper guide roller 54 is provided for transferring to the unit 61.

The paper feeding unit 31 is a device that transfers the loaded sheet of paper (1) to the lamination unit 41, and is pressurized with the heating roller 42 of the lamination unit 41 through the transfer device 32 of the paper feeding unit 31. It is configured to transport a sheet of paper (1) between rollers (43), and the loading unit (61) is a device in which the coated paper (1) is loaded, and the sheet of paper (3) is separated from the peeling unit (51). The coated paper (1) is configured to be loaded.

When explaining the operating process of the present invention consisting of the above configuration, the roll film 3 mounted on the paper feeding roller 12 of the application unit 11 passes between the application roller 13 and the lifting roller 14 on one side. The coating liquid (2) is applied and transferred to the dryer (22), and the roll film (3) transferred to the drying unit (21) is semi-dried by the heat of the dryer (22) while passing through the inside of the tunnel. 2) is dried and transferred to the lamination unit 41, and at the same time, the sheet of paper 1 loaded in the paper feeding unit 31 is also transferred to the lamination unit 41 through the transfer device 32, and the lamination unit 41 The roll film (3) and paper (1) transferred to are semi-dried by heating and pressurizing by the heating roller (42) and the pressure roller (43) in the process of being combined and passed between the heating roller (42) and the pressure roller (43). A portion of the coating liquid (2) in the state is press-fitted and penetrated into the paper (1), and at the same time, it is completely dried and transferred to the peeling unit (51), and the paper (1) and roll film (3) transferred to the peeling unit (51) are completely dried. ) Immediately after passing between the pressure transfer rollers 52, the roll film 3 is separated from the paper 1 by the guidance of the peeling guide roller 53 and is wound around the winding roller 18 of the applicator 11, The paper (1) from which the roll film (3) has been separated is transferred to the loading unit (61) by the guidance of the paper transfer roller (54) and loaded.

That is, in the present invention, a roll film (3) coated with a continuously transported coating solution (2) is dried, press-fitted, and penetrated into a continuously supplied paper (1) as a single sheet, and then the coating solution (2) is coated on the paper (1), The roll film (3) is separated from the sheet of paper (1), and the sheet of paper (1) is transferred to the loading unit (61) and loaded, so the cutting process of the paper (1) or roll film (3) is unnecessary, and the sheet of paper (1) is transferred to the loading unit (61) and loaded. The roll film (3) separated in (1) is wound around the winding roller (18) with the coating liquid (2) peeled off, so the roll film (3) can be reused.

In addition, the laminating part 41 of the present invention consists of a plurality of heating rollers 42 and pressing rollers 43 as shown in FIG. 2, and the semi-drying roller 43 passes between the heating roller 42 and the pressing roller 43. While repeatedly drying the coating liquid 2, the paper 1 may press in and penetrate the coating liquid 2, and may be dried at the same time and transferred to the peeling unit 51.

In the present invention, the peeling unit 51 separates the roll film 3 attached to the paper 1, the paper 1 is transferred to the loading unit 61, and the roll film 3 is applied to the application unit 11. Although it is configured to be transferred to the winding roller 18, the paper 1 is thin and easily bent, or if the work speed is high, the roll film 3 may sometimes not be separated from the paper 1, resulting in defects.

As an embodiment to solve this problem, as shown in FIG. 3, the peeling unit 51 is provided with a paper transfer belt 58 that transfers the paper 1 by driving the belt drive device 55, and the upper paper transfer belt At the lower side of (58), an adsorption device (56) is configured so that the paper (1) being moved to the paper transfer belt (58) is moved in close contact with the paper transfer belt (58).

Although the paper transfer belt 58 is not shown, it has a strip shape and is configured to be spaced apart from each other in the horizontal direction on the plane. The adsorption device 56 is located at the lower part of the upper paper transfer belt 58, and the adsorption device 56 ) of the intake nozzle (57) is located between the spaced apart paper transfer belts (54).

Therefore, the paper (1) that has passed between the pressure transfer rollers (52) of the peeling unit (51) is transferred in close contact with the paper transfer belt (54) through the suction of the adsorption device (56), and at the same time, the paper (1) Since the roll film (3) attached is separated from the paper (1) by the guidance of the peeling guide roller (53), the roll film (3) is smoothly separated from the paper (1) even if the paper (1) is thin or the work speed is fast. and no defects occur.

1: paper
2: Coating liquid
3: Roll film
11: Applicator
12: paper feeding roller
13: Application roller
14: Elevating roller
15: actuator
16: Coating liquid container
17: blade
18: Winding roller
19: Detection sensor
21: drying section
22: dryer
31: paper feeding unit
32: transfer device
41: joint part
42: Heating roller
43: Pressure roller
51: peeling part
52: Pressure transfer roller
53: Peeling guidance roller
54: Paper transfer roller
55: Belt drive device
56: adsorption device
57: intake nozzle
58: Paper transfer belt
61: loading part

Claims (3)

As the application roller 13 to which the coating solution 2 is applied rotates, the applicator 11 that applies the coating solution 2 to the roll film 3 and the roll film 3 to which the coating solution 2 is applied are dried during the transfer process. The paper (1) continuously supplied from the drying unit (21), the paper feeding unit (31), and the roll film (3) transferred from the drying unit (21) are laminated through the heating roller (42) and the pressurizing roller (43). After the paper (1) on which the branch (41) and the roll film (3) are laminated passes through the application part (11), only the roll film (3) is separated from the paper (1), and the paper (1) coated with the coating liquid (2) is separated from the paper (1). ) is a coating liquid application type laminator consisting of a peeling unit 51 loaded into the loading unit 61,
In the process of transferring the roll film 3 to which the coating solution 2 is applied from the application unit 11 to the laminating unit 41 through the drying unit 21, the heating furnace of the dryer 22 configured in the drying unit 21 The coating liquid (2) applied to the roll film (3) is dried to a semi-dry state, and the roll film (3) and paper (1) pass together between the heating roller (42) and the pressing roller (43) formed in the laminating portion (41). A coating liquid application type laminator, characterized in that a portion of the coating liquid (2) in a semi-dry state is completely dried by heating and pressurizing by the heating roller (42) and the pressure roller (43) during the process.
In claim 1,
On the upper part of the application roller 13 of the applicator 11 that applies the coating solution 2 to the roll film 3, a lifting roller 14 is configured to rotate by pressing the back side of the roll film 3 to which the coating solution 2 is applied. The lifting roller 14 includes an actuator 15 that moves the lifting roller 14 up and down, and the actuator 15 includes a detection sensor ( 19) was formed,
The detection sensor 19 measures the thickness of the coating liquid 2 applied to the roll film 3, and the actuator 15 moves the lifting roller 14 according to the signal sent from the detection sensor 19 to roll the roll film 3. ) A coating liquid application type laminator, characterized in that it is configured to adjust the thickness of the coating liquid (2) applied to the surface.
In claim 1,
The peeling unit 51 includes a paper transfer belt 58 that transfers the paper 1 from the peeling unit 51 to the loading unit 61 by driving the belt drive device 55, and the upper paper transfer belt 58 ) On the lower side of the paper transfer belt 58, an adsorption device 56 is configured to suck the paper 1 to move in close contact with the paper transfer belt 58.
A coating liquid application type laminator, characterized in that the paper (1) is moved in close contact with the paper transfer belt (58) so that the roll film (3) is smoothly separated from the paper (1).

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