KR101309275B1 - Device and Method of Coating Both Sides of Film, and Coating Apparatus Having the Same - Google Patents

Abstract

The present invention discloses a double-sided coating device and method of a film, and a double-sided coating device of a film having the same.
The double-sided coating device of the film according to an embodiment of the present invention is provided on the upper surface of the film, the first nozzle device for forming a first pattern by applying a first coating liquid to the upper surface in contact with the film; A coating roller for changing a direction of the film on which the first pattern is formed; And a second nozzle device which is provided on a lower surface of the film which has been changed in direction, and forms a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film. .

Description

Device and method for coating a film of both sides, and a device for coating both sides with the same {Device and Method of Coating Both Sides of Film, and Coating Apparatus Having the Same}

The present invention relates to a double-sided coating device and method of a film, and to a double-sided coating apparatus of a film having the same.

More specifically, the present invention forms a first pattern on the upper surface of the film using a first nozzle device such as a slit die nozzle or a spraying dispensing nozzle, and uses the coating roller on the film on which the first pattern is formed. By changing the direction and forming a second pattern in a non-contact state on the lower surface of the film by using a second nozzle device such as a spraying dispensing nozzle, thereby making it possible to coat both sides of the film, Coating the coating liquid at a uniform height on the lower surface or forming a precise pattern enables the production of high quality coating film, greatly reducing the amount and manufacturing cost of the coating liquid, and mass production of double coated film A double-sided coating device and method, and a double-sided coating apparatus of a film having the same.

Generally, in order to coat the coating liquid on a substrate such as a film (eg, a flexible printed circuit board or a thin film for a battery), for example, a slit die nozzle having a slit nozzle part is provided. die nozzles are used.

More specifically, Figure 1 is a diagram illustrating a roller coater of the prior art.

Referring to FIG. 1, in a general roller coating apparatus 100 according to the prior art, a film 120, which is a substrate, is caught on a coating roller 145 through a plurality of auxiliary rollers 195, and then the servo motor ( The slit die nozzle 110 is moved left and right using a driving motor (not shown) to rotate the coating roller 145 and the plurality of auxiliary rollers 195 with the driving motor (not shown). Accordingly, the coating solution is discharged onto the film 120 through the slit die nozzle 110 to intermittently coat the coating at regular intervals or to form a desired pattern by the front coating.

However, in the above-described conventional roller coating apparatus 100, since the film 120 is supplied in contact with a plurality of the auxiliary rollers 195, scratches may be generated on the lower surface of the film 120. Such scratches can cause defects in the pattern (not shown) formed on the film 120 and ultimately cause the final product (such as a PDP or LCD panel and various electronic products using the same) It is possible to cause defects.

In addition, in the roller coating apparatus 100 of the prior art, when coating of the coating liquid (both sides coating) is required on both sides of the film 120, the coating of the coating liquid on the upper surface (single surface coating), and drying After completing the coating liquid coating on the upper surface through the process, the coating of the coating liquid (lower single-sided coating) on the lower surface again. In this case, since the coating liquid coated on the upper surface inevitably comes into contact with the plurality of rollers 195, scratches may occur, or wrinkles may occur in a pattern (not shown) on the film 120, thereby causing a defect. This is very high. Thus, it has been considered practically impossible to perform double sided coating on film 120 using roller coating apparatus 100 of the prior art.

The method for solving the problems of the above-described roller coating apparatus 100 of the prior art has been proposed by Lee Hyun-jin and the like.

More specifically, Figure 2 is a view showing a film double-side coating device of the prior art. Such a film double-side coating device of the prior art was filed in Korea Patent Application No. 10-2006-0088016 in the name of the invention "film double-side coating system and a method for manufacturing a protective film using the same" dated September 12, 2006 by Lee Hyun Jin et al. Later, it is described in detail in Korean Patent Publication No. 10-2008-0023897 published on March 17, 2008.

2, the film double-sided coating apparatus 200 according to the prior art is largely the first coating device 210, the first chamber 230, the second coating device 240, the second chamber 250, lamination The apparatus 260 and the collection | recovery apparatus 280 are comprised. In addition, the film double-sided coating apparatus 200 is provided with a plurality of auxiliary rollers 295 to transfer the film 220.

The first coating device 210 includes a first supply member 211, an infeed member 212, and a first coating member 213, and supplies a film 220 to a first pattern on one surface thereof. 221 is coated. The first supply member 211 is an apparatus for providing the film 220 to determine the surface to be coated and to adjust the coating position. Infeed member 212 is a device for releasing the film 220 is provided with a means for detecting the strength of the tension (tension) to maintain the tension of the film 220 to the lamination device 260 to a certain level .

The film 220 is moved to the first chamber 230 after the first pattern 221 is coated on one surface by the first coating member 213. At this time, the auxiliary roller 295 is provided only on the back side of the film 220 to prevent damage to the first pattern 221 coated on one surface of the film 220.

Thereafter, the first chamber 230 dries and cures the first surface-coated first pattern 221 of the supplied film 220. Thereafter, the film 220 dried and cured in the first chamber 230 is transferred to the second coating apparatus 240.

The second coating apparatus 240 includes a second coating member 243 and coats a second pattern 222 such as, for example, an adhesive layer on the back surface of the film 220. In the second coating apparatus 240, the film 220 coated with the second pattern 222 is moved to the second chamber 250. At this time, the auxiliary roller 295 is provided only on one side of the film 220 to prevent damage to the second pattern 222 coated on the back surface of the film 220.

The second chamber 250 dries and cures the second pattern 222 coated on the back surface of the supplied film 220. The film 220 dried and cured in the second chamber 250 is transferred to the lamination device 260. In this case, the lamination apparatus 260 is comprised from the 2nd supply member 261 and the lamination member 262, and laminates the release film 290 on the film 220. As shown in FIG. This second supply member 261 adjusts the lamination position as a device for providing the release film 290.

The lamination member 262 releases the release film 290 and laminates the release film 290 on the back surface coated with the second pattern 222 of the film 220. At this time, the surface of the release film 290 laminated with the second pattern 222 is treated with silicon. In this manner, the protective film 223 in which the first and second patterns 221 and 222 are coated on both surfaces of the film 220 and the release film 290 is laminated on the back surface on which the second pattern 222 is formed is completed.

The completed protective film 223 is wound by the recovery device 280 via the adjustment device 270 and finally stored. In this case, the adjusting device 270 is a device for adjusting the time stored before the completed protective film 223 is wound on the recovery device 280. That is, when both of the protective film 223 is wound around the recovery device 280 while the double-sided coating is in progress, the adjusting device 270 lengthens its length to increase the time that the protective film 223 is stored. Therefore, the double-sided coating operation can be continuously performed while the recovery device 280 is replaced.

However, in the aforementioned film double-sided coating apparatus 200 according to the related art, the second coating roller of the second coating member 243 in which the dried and cured first pattern 221 is provided in the second coating apparatus 240 ( 245 and the auxiliary roller 295 at the rear end thereof inevitably come into contact with scratches, or wrinkles may occur in the first pattern 221 applied on the film 220. Very high.

Therefore, the aforementioned film double-sided coating system 200 according to the prior art has a problem that is very insufficient to solve the problem of the prior art roller coating apparatus 100 shown in FIG.

In particular, the above-described roller coating apparatus 100 or the film double-side coating system 200 of the prior art had a problem that it is impossible to form an ultra-thin pattern or a very precise pattern on the film.

Therefore, there is a need for a new method for solving the problems of the above-described conventional techniques.

Republic of Korea Patent Publication No. 10-2008-0023897

The present invention is to solve the above-mentioned problems of the prior art, by using a first nozzle device such as a slit die nozzle or a spraying dispensing nozzle to form a first pattern on the upper surface of the film, the first pattern is After changing the direction of the formed film by using a coating roller and forming a second pattern on the lower surface of the film in a non-contact state by using a second nozzle device such as a spraying dispensing nozzle, both sides of the film can be coated. When coating both sides of the film, in particular, coating the coating liquid on the lower surface with a uniform height or forming a precise pattern enables the production of high coating quality film, greatly reducing the amount of use and manufacturing cost of the coating liquid, To provide a double-side coating device and method of the film capable of mass production of the film, and a double-side coating device of the film having the same A.

A double-sided coating device for a film according to a first aspect of the present invention is provided on an upper surface of a film, the first nozzle device for forming a first pattern by applying a first coating liquid to the upper surface in contact with the film; A coating roller for changing a direction of the film on which the first pattern is formed; And a second nozzle device which is provided on a lower surface of the film which has been changed in direction, and forms a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film. .

The double-sided coating device of the film according to the first aspect of the present invention is provided on the upper surface of the film, the first nozzle to form a first pattern by spraying a first coating liquid on the upper surface in a non-contact state with the film Device; A coating roller for changing a direction of the film on which the first pattern is formed; And a second nozzle device which is provided on a lower surface of the film which has been changed in direction, and forms a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film. .

According to a third aspect of the present invention, there is provided a double-sided coating apparatus comprising: a supply apparatus for supplying a film; A first nozzle device provided on an upper surface of the film and forming a first pattern by applying a first coating solution to the upper surface in contact with the film; A coating roller for changing a direction of the film on which the first pattern is formed; And a second nozzle device provided on a lower surface of the film which has been changed in direction, and forming a second pattern by spraying a second coating solution on the lower surface in a non-contact state with the film. A chamber for drying and curing the film on which the first pattern and the second pattern are formed; And a recovery device for recovering the dried and cured film.

According to a fourth aspect of the present invention, a double-sided coating apparatus includes a supply apparatus for supplying a film; A first nozzle device provided on an upper surface of the film and forming a first pattern by spraying a first coating solution on the upper surface in a non-contact state with the film; A coating roller for changing a direction of the film on which the first pattern is formed; A second nozzle device which is provided on a lower surface of the film which has been turned and which forms a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film; A chamber for drying and curing the film on which the first pattern and the second pattern are formed; And a recovery device for recovering the dried and cured film.

The double-sided coating method according to the fifth aspect of the present invention comprises the steps of: a) feeding the film from the supply device to the recovery device while redirecting the film by a coating roller provided between the supply device and the recovery device; b) forming a first pattern by applying a first coating solution to the upper surface in contact with the film by using a first nozzle device provided on the upper surface of the film; c) forming a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film by using a second nozzle device provided on the lower surface of the film which is turned by the coating roller; Making; d) drying and curing the film on which the first pattern and the second pattern are formed; And e) recovering the dried and cured film using the recovery device.

A double-sided coating method according to a sixth aspect of the present invention includes the steps of: a) feeding the film from the supply device to the recovery device while redirecting the film by a coating roller provided between the supply device and the recovery device; b) forming a first pattern by spray-coating a first coating solution on the upper surface in a non-contact state with the first nozzle device provided on the upper surface of the film; c) forming a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film by using a second nozzle device provided on the lower surface of the film which is turned by the coating roller; Making; d) drying and curing the film on which the first pattern and the second pattern are formed; And e) recovering the dried and cured film using the recovery device.

In the double-sided coating device and method of the present invention, and the double-sided coating apparatus of the film having the same, the following advantages are achieved.

1. Both sides of the film can be coated.

2. When coating both sides of film, coating liquid is coated with uniform height or precise pattern formation is possible.

3. Since the second pattern coated on the lower surface of the film is in contact with the coating roller and the second nozzle device, the possibility of scratches or wrinkles is eliminated, so that a high coating quality film can be produced.

4. Significantly reduces the amount of coating liquid used, greatly reducing manufacturing costs.

5. Mass production of double coated film is possible.

Further advantages of the present invention can be clearly understood from the following description with reference to the accompanying drawings, in which like or similar reference numerals denote like elements.

1 is a diagram showing a roller coater of the prior art.
2 shows a film double sided coating system of the prior art.
FIG. 3A schematically illustrates a double-sided coating device for a film and a double-sided coating device for a film having the same according to the first embodiment of the present invention.
3B is a schematic cross-sectional view of a spray-type dispensing nozzle used in a double-side coating device for a film and a double-side coating device for a film according to a first embodiment of the present invention.
FIG. 3C is a detailed cross-sectional perspective view and a cross-sectional enlarged view of the coating liquid injection hole of a lower surface cut along a line AA of the spraying dispensing nozzle according to the exemplary embodiment of FIG. 3B.
3d schematically illustrates a double-sided coating device for a film and a double-sided coating device for a film having the same according to the second embodiment of the present invention.
Figure 3e schematically illustrates an alternative embodiment of a double-sided coating device of a film and a double-sided coating apparatus of a film having the same according to the first and second embodiments of the present invention.
4A is a flowchart illustrating a double-side coating method of a film according to a first embodiment of the present invention.
4B is a flowchart illustrating a double-side coating method of a film according to a second embodiment of the present invention.

Hereinafter, the present invention will be described with reference to embodiments of the present invention.

FIG. 3A schematically illustrates a double-sided coating device for a film and a double-sided coating device for a film having the same according to the first embodiment of the present invention.

Referring to FIG. 3A, the double-sided coating device 301 of the film according to the first embodiment of the present invention is provided on the upper surface of the film 320, and is placed on the upper surface in contact with the film 320. A first nozzle device 310 to apply a first coating liquid 310a to form a first pattern 321; A coating roller 345 for changing a direction of the film 320 on which the first pattern 321 is formed; And a second pattern liquid 340a applied to the lower surface of the lower surface of the film 320 in which the direction is changed, and in a non-contact state with the film 320 to form a second pattern 322. It includes a second nozzle device 340.

In addition, the double-side coating device 300 of the film according to the first embodiment of the present invention comprises a supply device 311 for supplying the film 320; The first nozzle device 310 is provided on an upper surface of the film 320, and forms a first pattern 321 by applying a first coating solution 310a to the upper surface in contact with the film 320. ); A coating roller 345 for changing a direction of the film 320 on which the first pattern 321 is formed; It is provided on the lower surface of the film 320 is changed direction, and the second coating liquid 340a is sprayed on the lower surface in a non-contact state with the film 320 to form a second pattern 322 Second nozzle device 340; A chamber 330 for drying and curing the film 320 on which the first pattern 321 and the second pattern 322 are formed; And a recovery device 380 for recovering the dried and cured film 320.

The first nozzle device 310 used in the double-side coating device 301 of the film and the double-side coating device 300 of the film according to the first embodiment of the present invention described above is implemented as a slit die nozzle, and the second nozzle device 340 may be implemented as a spray-type dispensing nozzle.

3B is a cross-sectional view schematically showing a spray-type dispensing nozzle used in the double-side coating device of the film and the double-side coating apparatus of the film according to the first embodiment of the present invention, and FIG. 3C is the present invention shown in FIG. 3B. Detailed cross-sectional perspective view of a lower surface of the dispensing nozzle of the spray method according to an embodiment of the present invention and a cross-sectional enlarged picture of the coating liquid injection hole.

3B and 3C, the spraying dispensing nozzle 340 according to the first embodiment of the present invention includes: first and second lips 342a and 342b provided opposite to each other; A plating liquid storage chamber 344 formed inside one of the first and second ribs 342a and 342b; A plurality of liquid injection nozzles 346a formed along the lower ends of the first and second ribs 342a and 342b from the liquid storage chamber 344; And a cover member 348 surrounding the first and second lips 342a and 342b and having a carrier gas injection hole 346b between the outer surfaces of the first and second lips 341 and 342b. It includes. This spraying dispensing nozzle 340 is referred to as a two-fluid nozzle having a plurality of coating liquid injection holes 346a and a carrier gas injection hole 346b. Here, the carrier gas may be air, for example.

The first and second ribs 341 and 342b are provided with first and second tips 343a and 343b, respectively, and the plurality of coating liquid injection holes 346a are respectively the first and second tips 343a. , 343b), for example, may be implemented as a fine hole in the range of 10 to 50㎛ diameter. In addition, the first and second tips 343a and 343b may be each formed of a cemented carbide material.

In the dispensing nozzle 340 of the spray method according to the first embodiment of the present invention, the second coating liquid 340a discharged through the plurality of coating liquid injection holes 346a implemented as micro holes is a carrier gas (for example, air). By spraying by the spray method to form a second pattern 322 on the lower surface of the film 320 as an ultra-thin film having a thickness of about 0.1㎛. This is approximately 1 compared to the range of 1-10 μm application thickness of the second pattern 222 that can be obtained using the second coating member 243 of the second coating apparatus 240 in the prior art shown in FIG. 1B. It corresponds to / 10 to 1/100. Therefore, the present invention can significantly reduce the amount of use of the second coating liquid 340a compared to the prior art.

Referring again to FIGS. 3A to 3C, in the double-sided coating device 301 of the film and the double-sided coating apparatus 300 of the film having the same according to the first embodiment of the present invention, the film 320 is a supply device. The supply direction is supplied to the recovery device 380 at 311, and the feeding direction is switched by the coating roller 345 provided between the supply device 311 and the recovery device 380. In this case, the first nozzle device 310 is provided on the upper surface of the film 320, and the first pattern 321 is coated by applying the first coating liquid 310a to the upper surface in contact with the film 320. To form. Thereafter, the film 320 having the first pattern 321 formed on the upper surface thereof is redirected by the coating roller 345. In the embodiment shown in FIG. 2A, the film 320 is exemplarily shown to be turned 90 degrees by the coating roller 345, but the scope of the present invention is not limited thereto.

Thereafter, the lower surface of the film 320 redirected by the coating roller 345 is provided with a second nozzle device 340, such as a dispensing nozzle, for example in a spraying manner. Accordingly, the second nozzle apparatus 340 forms the second pattern 322 by spraying the second coating solution 340a on the lower surface of the film 320 in a non-contact state with the film 320. At this time, since the second pattern 322 is in a non-contact state with the coating roller 345 and the second nozzle apparatus 340, scratches or wrinkles are generated in the second pattern 322 formed on the film 320. The possibility is eliminated.

Thereafter, the film 320 having the first and second patterns 321 and 322 formed thereon is supplied into the chamber 330 to perform a drying and curing process. Thereafter, the dried and cured film 320 is recovered in the recovery device 380.

In the double-sided coating device 301 of the film and the double-sided coating apparatus 300 of the film according to the first embodiment of the present invention shown in FIGS. 3A to 3C described above, the second pattern 322 is sprayed on the film ( The entire lower surface of 320 is fully coated.

3d schematically illustrates a double-sided coating device for a film and a double-sided coating device for a film having the same according to the second embodiment of the present invention.

Referring to FIG. 3D, the double-sided coating device 301 of the film according to the second embodiment of the present invention is provided on the upper surface of the film 320 and the first surface on the upper surface in a non-contact state with the film 320. A first nozzle device 310 forming a first pattern 321 by applying the coating liquid 310a in a spray method; A coating roller 345 for changing a direction of the film 320 on which the first pattern 321 is formed; And a second pattern liquid 340a applied to the lower surface of the lower surface of the film 320 in which the direction is changed, and in a non-contact state with the film 320 to form a second pattern 322. It includes a second nozzle device 340.

In addition, the double-side coating device 300 of the film according to the second embodiment of the present invention includes a supply device 311 for supplying the film 320; The first nozzle device is provided on the upper surface of the film 320 and forms a first pattern 321 by spraying a first coating solution 310a on the upper surface in a non-contact state with the film 320. 310; A coating roller 345 for changing a direction of the film 320 on which the first pattern 321 is formed; It is provided on the lower surface of the film 320 is changed direction, and the second coating liquid 340a is sprayed on the lower surface in a non-contact state with the film 320 to form a second pattern 322 Second nozzle device 340; A chamber 330 for drying and curing the film 320 on which the first pattern 321 and the second pattern 322 are formed; And a recovery device 380 for recovering the dried and cured film 320.

The first nozzle device 310 and the second nozzle device 340 used in the double-side coating device 301 of the film and the double-side coating device 300 of the film according to the second embodiment of the present invention described above are respectively FIG. 2B. And it may be implemented by the spray method of the dispensing nozzle shown in Figure 2c.

Figure 3e schematically illustrates an alternative embodiment of a double-sided coating device of a film and a double-sided coating apparatus of a film having the same according to the first and second embodiments of the present invention.

Referring to FIG. 3E, a double-sided coating device 301 of a film according to an alternative embodiment of the present invention is provided on the top surface of the film 320, and the first surface on the top surface in a non-contact state with the film 320. A first nozzle device 310 forming a first specific pattern 321a by applying the coating liquid 310a in a spray method; A first mask 347a provided between the film 320 and the first nozzle device 310 and having a first pattern hole PH1 corresponding to the first specific pattern 321a; A coating roller 345 for changing a direction of the film 320 on which the first specific pattern 321a is formed; It is provided on the lower surface of the film 320 is changed direction, and the second coating liquid 340a is applied to the lower surface in a non-contact state with the film 320 by spraying to form a second specific pattern 322a A second nozzle device 340; And a second mask 347b provided between the film 320 and the second nozzle device 340 and having a second pattern hole PH2 corresponding to the second specific pattern 322a. .

In addition, the double-side coating device 300 of the film according to an alternative embodiment of the present invention comprises a supply device 311 for supplying the film 320; A first nozzle provided on an upper surface of the film 320, and applying a first coating solution 310a to the upper surface in a non-contact state with the film 320 to form a first specific pattern 321a Device 310; A first mask 347a provided between the film 320 and the first nozzle device 310 and having a first pattern hole PH1 corresponding to the first specific pattern 321a; A coating roller 345 for changing a direction of the film 320 on which the first specific pattern 321a is formed; It is provided on the lower surface of the film 320 is changed direction, and the second coating liquid 340a is sprayed on the lower surface in a non-contact state with the film 320 to form a second pattern 322 Second nozzle device 340; And a second mask 347b provided between the film 320 and the second nozzle device 340 and having a second pattern hole PH2 corresponding to the second specific pattern 322a. A chamber 330 for drying and curing the film 320 on which the first specific pattern 321a and the second specific pattern 322a are formed; And a recovery device 380 for recovering the dried and cured film 320.

The first nozzle device 310 and the second nozzle device 340 used in the above-described alternative embodiments of the present invention may be implemented by the spraying dispensing nozzle shown in FIGS. 2B and 2C, respectively.

In addition, in the double-sided coating device 301 of the film and the double-sided coating apparatus 300 of the film according to an alternative embodiment of the present invention, the first and second masks having the first and second patterns P1 and P2, respectively. The first and second specific patterns 321a and 322a may be formed on the upper and lower surfaces of the film 320 using the 347a and 347b, respectively.

4A is a flowchart illustrating a double-side coating method of a film according to a first embodiment of the present invention.

Referring to FIG. 4A in conjunction with FIGS. 3A to 3E, the method 400 for coating a double-sided coating of a film according to the first embodiment of the present invention includes a) a coating roller provided between the supply device 311 and the recovery device 380. Feeding (410) the film (320) from the supply device (311) to the recovery device (380) while changing the direction of the film (320) by (345); b) The first pattern (310a) is applied to the upper surface in contact with the film 320 by using the first nozzle device 310 provided on the upper surface of the film 320 to form a first pattern ( Forming 321; c) using a second nozzle device 340 provided on the lower surface of the film 320 which is turned by the coating roller 345 to the second surface in a non-contact state with the film 320. Applying a coating liquid 340a in a spray method to form a second pattern 322 (430); d) drying and curing the film 320 on which the first pattern 321 and the second pattern 322 are formed (440); And e) recovering the dried and cured film 320 using the recovery device 380 (450).

In the double-side coating method 400 of the film according to the first embodiment of the present invention described above, the first nozzle device 310 is implemented as a slit die nozzle, the second nozzle device 340 is a spray-type dis It may be implemented as a fencing nozzle.

In addition, in step b) of the double-side coating method 400 of the film according to the first embodiment of the present invention, the first nozzle apparatus 310 is in contact with the film 320 in a non-contact state with a first plating solution on the upper surface. The first pattern 321 is formed by applying the spray method 310a, and the first nozzle apparatus 310 may be implemented as a spraying dispensing nozzle.

In addition, in step c) of the double-side coating method 400 of the film according to the first embodiment of the present invention, the second nozzle device 340 and the film 320 is provided between the second pattern hole PH2 The second specific pattern 322a corresponding to the second pattern hole PH2 may be formed on the lower surface by using the second mask 347b having the ().

4B is a flowchart illustrating a double-side coating method of a film according to a second embodiment of the present invention.

Referring to FIG. 4B in conjunction with FIGS. 3A-3E, the method 400 for coating a double-sided coating of a film according to a second embodiment of the present invention includes a) a coating roller provided between the supply device 311 and the recovery device 380. Feeding (410) the film (320) from the supply device (311) to the recovery device (380) while changing the direction of the film (320) by (345); b) using a first nozzle device 310 provided on the upper surface of the film 320 to apply a first coating solution 310a to the upper surface in a non-contact state by spraying to the first surface Forming a pattern 321 (420); c) using a second nozzle device 340 provided on the lower surface of the film 320 which is turned by the coating roller 345 to the second surface in a non-contact state with the film 320. Applying a coating liquid 340a in a spray method to form a second pattern 322 (430); d) drying and curing the film 320 on which the first pattern 321 and the second pattern 322 are formed (440); And e) recovering the dried and cured film 320 using the recovery device 380 (450).

In the double-sided coating method 400 of the film according to the second embodiment of the present invention described above, the first nozzle device 310 and the second nozzle device 340 may be implemented as a spraying dispensing nozzle, respectively. have.

In addition, in the step b) of the double-side coating method 400 of the film according to the second embodiment of the present invention, a first pattern hole PH1 is provided between the first nozzle apparatus 310 and the film 320. A first specific pattern 321a corresponding to the first pattern hole PH1 is formed on the upper surface by using the first mask 347a including the second mask device 340 in the step c). ) And a second specific pattern corresponding to the second pattern hole PH2 on the lower surface by using a second mask 347b provided between the film 320 and the second pattern hole PH2. 322a).

Since various examples can be made in the configurations and methods described and illustrated herein without departing from the scope of the present invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be illustrative, and not intended to limit the invention. no. Accordingly, the scope of the present invention should not be limited by the above-described exemplary embodiments, but should be determined only in accordance with the following claims and their equivalents.

100: roller coating apparatus 110: slit die nozzle 120,220,320: film
145,195,245,295,345: Roller 200,300: Double-side coating device 210,240: Coating device
211,261: supply member 212: infeed member 213,243: coating member
221,222,321,321a, 322,322a: Pattern 223: Protective film 230,250,330: Chamber
260 lamination device 262 lamination member 270 adjusting device
280,380: recovery device 290: release film 301: double-sided coating device
310,340: nozzle apparatus / dispensing nozzle 310a, 340a: plating liquid 311: supply apparatus
342a, 342b: Lip 343a, 343b: Tip 344: Liquid-liquid storage chamber 346a: Liquid-liquid injection hole
346b: carrier gas injection port 348: cover member PH1, PH2: pattern hole 347a, 347b: mask

Claims (17)

In a two-sided coating device,
A first nozzle device provided on an upper surface of the film and forming a first pattern by applying a first coating solution to the upper surface in contact with the film;
A coating roller for changing a direction of the film on which the first pattern is formed; And
A second nozzle device which is provided on a lower surface of the turned film and which forms a second pattern by spraying a second coating solution on the lower surface in a non-contact state with the film;
Double-sided coating device comprising a. The method of claim 1,
And the first nozzle device is implemented as a slit die nozzle, and the second nozzle device is implemented as a spraying dispensing nozzle. 3. The method according to claim 1 or 2,
The double-sided coating device further includes a second mask provided between the film and the second nozzle device, the second mask having a second pattern hole,
The second pattern is a second specific pattern corresponding to the second pattern hole.
Double sided coating device. In a two-sided coating device,
A first nozzle device provided on an upper surface of the film and forming a first pattern by spraying a first coating solution on the upper surface in a non-contact state with the film;
A coating roller for changing a direction of the film on which the first pattern is formed; And
A second nozzle device which is provided on a lower surface of the turned film and which forms a second pattern by spraying a second coating solution on the lower surface in a non-contact state with the film;
Double-sided coating device comprising a. 5. The method of claim 4,
And the first nozzle device and the second nozzle device are each formed of a spraying dispensing nozzle. The method according to claim 4 or 5,
The double coated device is
A first mask provided between the film and the first nozzle device and having a first pattern hole; And
A second mask provided between the film and the second nozzle device, the second mask having a second pattern hole
, ≪ / RTI >
The first pattern is a first specific pattern corresponding to the first pattern hole,
The second pattern is a second specific pattern corresponding to the second pattern hole.
Double sided coating device. In the film double-sided coating device,
A supply device for supplying a film;
A first nozzle device provided on an upper surface of the film and forming a first pattern by applying a first coating solution to the upper surface in contact with the film;
A coating roller for changing a direction of the film on which the first pattern is formed; And
A second nozzle device which is provided on a lower surface of the film which has been turned and which forms a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film;
A chamber for drying and curing the film on which the first pattern and the second pattern are formed; And
Recovery device for recovering the dried and cured film
Both sides coating device of the film comprising a. 8. The method of claim 7,
And the first nozzle device is implemented as a slit die nozzle, and the second nozzle device is implemented as a spraying dispensing nozzle. 9. The method according to claim 7 or 8,
The two-side coating apparatus further includes a second mask provided between the film and the second nozzle apparatus, the second mask having a second pattern hole,
The second pattern is a second specific pattern corresponding to the second pattern hole.
Double sided coating device. In the double-sided coating apparatus,
A supply device for supplying a film;
A first nozzle device provided on an upper surface of the film and forming a first pattern by spraying a first coating solution on the upper surface in a non-contact state with the film;
A coating roller for changing a direction of the film on which the first pattern is formed;
A second nozzle device which is provided on a lower surface of the film which has been turned and which forms a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film;
A chamber for drying and curing the film on which the first pattern and the second pattern are formed; And
Recovery device for recovering the dried and cured film
Double-sided coating device comprising a. The method of claim 10,
The first nozzle device and the second nozzle device is a double-sided coating device each implemented as a spraying dispensing nozzle. The method according to claim 10 or 11,
The double-sided coating device
A first mask provided between the film and the first nozzle device and having a first pattern hole; And
A second mask provided between the film and the second nozzle device, the second mask having a second pattern hole
, ≪ / RTI >
The first pattern is a first specific pattern corresponding to the first pattern hole,
The second pattern is a second specific pattern corresponding to the second pattern hole.
Double sided coating device. In the double-side coating method of the film,
a) feeding the film from the supply device to the recovery device while redirecting the film by a coating roller provided between the supply device and the recovery device;
b) forming a first pattern by applying a first coating solution to the upper surface in contact with the film by using a first nozzle device provided on the upper surface of the film;
c) forming a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film by using a second nozzle device provided on the lower surface of the film which is turned by the coating roller; Making;
d) drying and curing the film on which the first pattern and the second pattern are formed; And
e) recovering the dried and cured film using the recovery device
Both sides coating method of the film comprising a. The method of claim 13,
The double-sided coating method of the film is a double-sided coating method of the film in the step b), the first nozzle device to form a first pattern by spraying a first coating solution on the upper surface in a non-contact state with the film. The method of claim 13,
The double-sided coating method of the film may correspond to the second pattern hole on the lower surface by using a second mask provided between the second nozzle device and the film and having a second pattern hole in step c). A method of coating both sides of a film to form a second specific pattern. In the double-side coating method of the film,
a) feeding the film from the supply device to the recovery device while redirecting the film by a coating roller provided between the supply device and the recovery device;
b) forming a first pattern by spray-coating a first coating solution on the upper surface in a non-contact state with the first nozzle device provided on the upper surface of the film;
c) forming a second pattern by spraying a second coating liquid on the lower surface in a non-contact state with the film by using a second nozzle device provided on the lower surface of the film which is turned by the coating roller; Making;
d) drying and curing the film on which the first pattern and the second pattern are formed; And
e) recovering the dried and cured film using the recovery device
Both sides coating method of the film comprising a. 17. The method of claim 16,
Double-sided coating method of the film
In step b), a first specific pattern corresponding to the first pattern hole is formed on the upper surface by using a first mask provided between the first nozzle device and the film and having a first pattern hole.
Forming a second specific pattern corresponding to the second pattern hole on the lower surface by using a second mask provided between the second nozzle device and the film in step c) and having a second pattern hole;
Method of coating both sides of the film.

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