JP7131574B2 - Printing device and printing method - Google Patents

Description

The present invention relates to a printing apparatus and printing method.

A printing method has been proposed as a method for forming patterns of flat panel displays such as liquid crystal displays and organic EL displays and for forming color pixels of color filters. A printing method has also been proposed as a technique for forming a fine print pattern or a two-dimensional hologram sheet for decorating the surface of printed matter, packages, wrapping paper, etc., or for preventing counterfeiting of cards, event tickets, cash vouchers, securities, etc. ing.

Patent Document 1 discloses multicolor printing using an offset printing method. As shown in FIG. 9, a plate carriage 204 for transferring a plurality of plates 201a to 201c arranged in the transfer direction, a printing carriage 205 for transferring a printing base material, and blankets 202a to 202c corresponding to each plate are arranged on a circumference. A printing apparatus 200 is shown having a blanket cylinder 206 oriented. In this printing apparatus 200, the plate carriage 204 moves under the blanket cylinder 206, and the patterns of the plates 201a to 201c are sequentially transferred to the blankets 202a to 202c arranged in the circumferential direction of the blanket cylinder 206. It's becoming Subsequently, when the pattern is transferred to the printing base material, the printing carriage 205 moves to the lower side of the blanket cylinder 206 and prints one blanket pattern while moving synchronously with the rotation of the blanket cylinder 206 . After that, the printing carriage 205 returns to the position where the transfer of the next pattern is started, and similarly moves synchronously to print the pattern from the next blanket. In this way, the printing carriage 205 reciprocates as many times as the number of plates in order to receive the pattern, so the printing takt time until printing all the patterns becomes long.

The plate carriage 204 becomes longer as the number of the plates 201a to 201c increases, and the printing carriage 205 can be retracted to a sufficient distance so as not to interfere with the plate carriage 204 when receiving patterns from the plates onto the blankets 202a to 202c. is necessary. Therefore, as the total length of the printing apparatus 200 increases and the movement distance of the movable cart increases, the straightness of the printing apparatus and the positioning accuracy of the movable cart deteriorate. This method is not suitable for high-definition and high-precision pattern formation because of the consistency of pattern positions.

In Patent Document 2, as shown in FIG. 10, a plate carriage 304 for transferring a plurality of plates arranged in the transfer direction, a printing carriage 305 for transferring a printing base material, and a blanket cylinder 306a corresponding to each of the plates 301a to 301c. 306c is shown. In this printing apparatus 300, the plate carriage 304 moves under the blanket cylinders 306a to 306c, and the patterns on the respective plates 301a to 301c are transferred to the blankets 302a to 302c of the blanket cylinders 306a to 306c corresponding to the respective plates. Transfer multiple patterns to the blanket with one movement motion. Subsequently, when the pattern is transferred to the printing base material, the printing carriage 305 moves under the blanket cylinders 306a to 306c and prints the pattern of one blanket while moving synchronously with the rotation of the blanket cylinders. After that, the printing carriage 305 moves to the position where the transfer of the next pattern is started, and the pattern is printed from the next blanket. The printing carriage 305 can receive the pattern with the shortest moving distance, and the printing tact can be shortened.

There is an optimum blanket pressing pressure and an optimum blanket cylinder rotation speed for transferring the pattern from the plate to the blanket for each ink, and the number of inks increases as the number of plates increases. Therefore, if the blanket cylinders are installed on the same carriage, the rotation speed of each blanket cylinder will be the same. It is unsuitable for forming fine, high-precision patterns.

JP-A-5-169626 JP 2007-144644 A

However, in the invention described in Patent Document 1, although it is possible to optimize the blanket pressing pressure to the plate and the rotation speed of the blanket cylinder for each ink type, the printing tact becomes long and the device lengthens, resulting in fine printing. There is a problem that the wiring position accuracy is not stable. In the invention described in Patent Document 2, the printing tact can be shortened, but the blanket pressing pressure to the plate and the rotation speed of the blanket cylinder cannot be optimized for each ink type, and the optimum printing pattern shape cannot be obtained. There are problems that cannot be formed.

In view of the above-mentioned problems, the present invention is capable of obtaining an optimum print pattern shape with a variety of ink materials using a plurality of plates, and accurately positioning the printing substrate and the gravure plate. To provide a printing apparatus capable of obtaining accuracy and printing in a short time.
In order to solve the above problems, a printing apparatus according to the present invention includes a plate surface plate on which a plate is placed, nozzles that supply ink to the plate, and ink that fills the grooves of the plate with the ink supplied to the plate. A plurality of plate surface plate bases having a filling blade and an ink removal blade for scraping off ink surplus from the filling are arranged in parallel, and the blanket cylinder base has a blanket cylinder on which a blanket is placed and an alignment camera. and a printing surface plate base having a printing surface plate on which a printing base material is placed, wherein the plate surface plate base, the blanket cylinder base and the printing surface plate base are arranged in an orthogonal direction. It is characterized by

As a result, it is possible to obtain the optimum printing pattern shape with various ink materials using multiple plates, and by accurately positioning the printing substrate and the gravure plate, it is possible to obtain precise positional accuracy, and it is possible to print in a short time. can print.
In one aspect of the present invention, the plate surface plate base includes a printing surface plate moving rail that reciprocates the plate surface plate, and the blanket cylinder base is capable of reciprocating the blanket cylinder. The plate surface plate reciprocates in a direction orthogonal to the reciprocation motion of the blanket cylinder, and the blanket cylinder reciprocates between the positions of the plate surface plate and the printing surface plate. .

In one aspect of the present invention, the plate surface plate base moves the nozzle so that it can reciprocate on the plate surface plate, and moves the ink filling blade and the ink removal blade up and down so that the positions thereof can be adjusted. A doctor holder is provided.
Moreover, in one aspect of the present invention, the alignment camera recognizes alignment marks provided on the blanket cylinder, the printing substrate, and the plate to adjust relative positions.
In one aspect of the present invention, a plurality of transport motors for driving the plate surface plate base, the printing surface plate base, and the blanket cylinder base are provided, and the plurality of transport motors are individually controlled by a control device. do.

Moreover, in one aspect of the present invention, the printing platen supplies the printing base material by sheet processing or roll-to-roll.
Further, a printing method of the present invention is a printing method using the printing apparatus according to any one of the above, wherein a pattern is transferred from the plate selected by one of the blanket cylinders to the blanket, a step of transferring the pattern from the plate to the printing base material, and an operation of filling the non-selected plate with ink and an operation of scraping off excess ink are performed during the step. .

According to the present invention, it is possible to obtain an optimum print pattern shape with a variety of ink materials using a plurality of plates, and to obtain precise positional accuracy by accurately positioning the printing substrate and the gravure plate. A printer capable of printing in a short time can be provided.

1 is a schematic plan view of a printing apparatus 100 according to the present invention; FIG. FIG. 2 is a schematic diagram of a printing process using the printing apparatus 100 shown in FIG. 1; 3 is a schematic diagram of the printing process following FIG. 2; FIG. 4 is a schematic diagram of the printing process following FIG. 3; FIG. 5 is a schematic diagram of the printing process following FIG. 4; FIG. 6 is a schematic diagram of the printing process following FIG. 5; FIG. 7 is a schematic diagram of the printing process following FIG. 6; FIG. It is a plane schematic diagram which shows an example of a printing pattern. 1A and 1B are schematic diagrams of a printing apparatus and a printing process shown in Patent Document 1; 1 is a schematic diagram of a printing apparatus and a printing process shown in Patent Document 2; FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, the drawings are schematic, and the relationship with the plane dimensions, the dimensional ratio of each part, etc. are different from the actual ones. Further, the embodiments shown below are examples of configurations for embodying the technical idea of the present invention. It is not specific to a thing. Various modifications can be made to the technical idea of the present invention within the technical scope defined by the claims.

FIG. 1 shows the overall configuration of one embodiment of the present invention. As shown in FIG. 1, the printing apparatus 100 shown in this embodiment includes gravure plate units 14 a to 14 d, a printing unit 15 and a blanket cylinder carriage unit 16 . Further, in the printing apparatus 100, the gravure plate units 14a to 14d are arranged so as to be perpendicular to the direction in which the blanket cylinder carriage unit 16 and the printing unit 15 extend. The gravure plate units 14a to 14d, the printing unit 15 and the blanket cylinder carriage unit 16 respectively correspond to the plate surface plate base, the printing surface plate base and the blanket cylinder base in the present invention. The printing apparatus 100 also includes a plurality of transport motors for driving the gravure plate units 14a to 14d, the printing unit 15, and the blanket cylinder carriage unit 16, and these transport motors are individually controlled by the controller.

The gravure plate units 14a to 14d include planographic gravure plates 1a to 1d, plate surface plates 2a to 2d on which the gravure plates 1a to 1d are installed, and ink supply nozzles 3a to 3d for supplying ink to the gravure plates 1a to 1d. , ink filling blades 4a to 4d for filling the grooves of the gravure plates 1a to 1d with the ink supplied to the gravure plates 1a to 1d, and ink removing blades 5a to 5d for scraping off excess ink after ink filling. The plate surface plates 2a to 2d are movable in the vertical direction in the figure along printing surface plate movement rails 13a to 13d. In the gravure plate units 14a to 14d, the ink supply nozzles 3a to 3d are reciprocally moved on the plate surface plates 2a to 2d, and the positions of the ink filling blades 4a to 4d and the ink removing blades 5a to 5d are adjustable. is equipped with a doctor holder that moves up and down.

The printing unit 15 includes a printing base material 7 and a printing surface plate 6 on which the printing base material 7 is installed, and the printing base material 7 is arranged parallel to the moving direction of the printing surface plate movement rails 13a to 13d. . The printing platen 6 sequentially supplies the printing base material 7 by sheet processing or roll-to-roll.
The blanket body carriage unit 16 includes a blanket body carriage 9 and a carriage movement rail 12. - 特許庁A blanket cylinder carriage 9 includes a blanket 10 for receiving the ink of the gravure plates 1a to 1d and transferring the ink to the printing substrate 7, a blanket cylinder 8 for setting the blanket 10, and positioning the printing substrate 7 and the gravure plates 1a to 1d. It has an alignment camera 11 for performing. The blanket body carriage 9 is movable in the horizontal direction in the figure along the carriage movement rail 12 .

Since the printing apparatus 100 of the present invention has ink supply, filling, and removal mechanisms for each of the gravure plate units 14a to 14d, various inks can be used at the same time. , the gravure plates 1a to 1d are filled with ink, excess ink is removed, the ink is received by the blanket 10, and the ink is transferred to the printing substrate 7 at the same time.
A printing process using the printing apparatus 100 of the present invention will be described with reference to FIGS. 2 to 10. FIG. First, as shown in FIG. 2(a), the gravure plates 1a to 1d are placed on the plate surface plates 2a to 2d, the blanket 10 is placed on the blanket cylinder 8, and the printing substrate 7 is placed on the printing surface plate 6.

Next, as shown in FIG. 2(b), plate surface plates 2a to 2d move along printing surface plate moving rails 13a to 13d to the ink receiving position of blanket cylinder 8. Then, as shown in FIG. The blanket body carriage 9 moves along the carriage movement rail 12 to a predetermined alignment mark reading position. In this description, a method of performing alignment using the alignment mark of the printing substrate 7 as a reference will be described. Depending on the printing conditions, the alignment mark may be used as a reference for both the printing substrate 7 and the gravure plates 1a to 1d. The alignment mark position of the printing substrate 7 is measured and registered as a reference position.

Next, it moves to the alignment mark position of the gravure plate 1a, measures the alignment mark of the gravure plate 1a, operates the plate surface plate 2a, and aligns and fixes the alignment mark of the gravure plate 1a with the registered reference position. After that, it moves to the alignment mark positions of the gravure plates 1b to 1d and aligns each alignment mark position with the reference position. Alignment marks are aligned using a known alignment system, and the number of pixels of the camera, lens magnification and resolution, pattern matching method, edge detection method, etc. are selected according to the accuracy of alignment.

Next, as shown in FIG. 2(c), after the positioning of the alignment marks is completed, the plate surface plates 2a to 2d return to their original positions. The ink supply nozzle 3a moves between a predetermined ink discharge start position and a discharge stop position while discharging ink to supply ink to the gravure plate 1a.
Next, as shown in FIG. 3(d), the plate surface plate 2a is moved to a predetermined lowered position of the ink filling blade 4a. With the ink filling blade 4a lowered to a predetermined height and sufficiently pressed against the gravure plate 1a, the plate surface plate 2a moves toward the blanket cylinder carriage unit 16 to a predetermined position, and the pattern of the gravure plate 1a is formed. The grooves are filled with ink and the ink filling blade 4a returns to its original position. Simultaneously with the above operation, the blanket cylinder carriage 9 moves to a predetermined ink receiving start position and waits.

Next, as shown in FIG. 3(e), the plate surface plate 2a moves to a position where the blanket 10 placed on the blanket cylinder 8 receives ink. Next, as shown in FIG. 3(f), the blanket cylinder 8 rotates to a predetermined position, descends to the predetermined position, and contacts the gravure plate 1a. Further, the blanket cylinder carriage 9 moves at a determined speed to a determined position, and the blanket cylinder 8 rotates in synchronism with the movement of the blanket cylinder carriage 9 . The blanket cylinder 8 returns to its original position, and the blanket 10 receives the pattern of the gravure plate 1a. Simultaneously with the above operation, the ink supply nozzle 3b moves between a predetermined ink discharge start position and a discharge stop position while discharging ink, thereby supplying ink to the gravure plate 1b.

Next, as shown in FIG. 4(g), the blanket cylinder carriage 9 moves to a predetermined transfer start position on the printing substrate 7, the blanket cylinder 8 rotates to a predetermined position, and the predetermined position is reached. It is lowered to a position to contact the printing substrate 7 . The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronism with the movement of the blanket cylinder carriage 9. - 特許庁After that, the blanket cylinder 8 returns to its original position, and the pattern of the gravure plate 1a accepted by the blanket 10 is transferred to the printing substrate 7. FIG. Simultaneously with the above operation, the plate surface plate 2a is moved to the lowered position of the ink removing blade 5a, the ink removing blade 5a is lowered to a predetermined height, and the plate surface plate 2a is lowered while being sufficiently pressed against the gravure plate 1a. After moving to a predetermined position to remove excess ink from the gravure plate 1a, the ink removing blade 5a returns to its original position. Simultaneously with the above operation, the plate surface plate 2b moves to the lowered position of the ink filling blade 4b. The ink filling blade 4b descends to a predetermined height, and the plate surface plate 2b moves to a predetermined position in the direction of the blanket cylinder carriage unit 16 while being sufficiently pressed against the gravure plate 1b. , and the ink filling blade 4b returns to its original position.

Next, as shown in FIG. 4(h), the blanket cylinder carriage 9 moves to a predetermined ink receiving start position for the gravure plate 1b and waits. Simultaneously with the above operation, the plate surface plate 2b moves to a position where the blanket 10 placed on the blanket cylinder 8 receives the ink. Simultaneously with the above operation, the plate surface plate 2a returns to its original position.
Next, as shown in FIG. 4(i), the blanket cylinder 8 rotates to a predetermined position, descends to the predetermined position, and contacts the gravure plate 1b. The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronism with the movement of the blanket cylinder carriage 9. - 特許庁After that, the blanket cylinder 8 returns to its original position, and the pattern of the gravure plate 1b is received on the blanket 10. - 特許庁Simultaneously with the above operation, the ink supply nozzle 3c moves between a predetermined ink discharge start position and a discharge stop position while discharging ink, thereby supplying ink to the gravure plate 1c.

Next, as shown in FIG. 5(j), the blanket cylinder carriage 9 moves to a predetermined transfer start position on the printing base material 7, the blanket cylinder 8 rotates to a predetermined position, and the predetermined position is reached. It descends to a position where it comes into contact with the printing base material 7 . The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronization with the movement of the blanket cylinder carriage 9. - 特許庁After that, the blanket cylinder 8 returns to its original position, and the pattern of the gravure plate 1b accepted by the blanket 10 is transferred to the printing substrate 7. FIG. Simultaneously with the above operation, the plate surface plate 2b is moved to the lowered position of the ink removing blade 5b, the ink removing blade 5b is lowered to a predetermined height, and the plate surface plate 2b is lowered while being sufficiently pressed against the gravure plate 1b. After moving to a predetermined position to remove excess ink from the gravure plate 1b, the ink removing blade 5b returns to its original position. Simultaneously with the above operation, the plate surface plate 2c moves to a predetermined lowering position of the ink filling blade 4c. The ink filling blade 4c is lowered to a predetermined height, and the plate surface plate 2c is moved to a predetermined position in the direction of the blanket cylinder carriage unit 16 while being sufficiently pressed against the gravure plate 1c. The pattern grooves are filled with ink, and the ink filling blade 4c returns to its original position.

Next, as shown in FIG. 5(k), the blanket cylinder carriage 9 moves to a predetermined ink receiving start position for the gravure plate 1c and waits. Simultaneously with the above operation, the plate surface plate 2c moves to a position where the blanket 10 placed on the blanket cylinder 8 receives the ink. Simultaneously with the above operation, the plate surface plate 2b returns to its original position.
Next, as shown in FIG. 5(l), the blanket cylinder 8 rotates to a predetermined position, descends to the predetermined position, and contacts the gravure plate 1c. The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronism with the movement of the blanket cylinder carriage 9. - 特許庁Thereafter, the blanket cylinder 8 returns to its original position, and the blanket 10 receives the pattern of the gravure plate 1c. Simultaneously with the above operation, the ink supply nozzle 3d moves between a predetermined ink discharge start position and a discharge stop position while discharging ink, thereby supplying ink to the gravure plate 1d.

Next, as shown in FIG. 6(m), the blanket cylinder carriage 9 moves to a predetermined transfer start position on the printing base material 7, the blanket cylinder 8 rotates to a predetermined position, and the predetermined position is reached. It descends to a position where it comes into contact with the printing base material 7 . The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronization with the movement of the blanket cylinder carriage 9. - 特許庁After that, the blanket cylinder 8 returns to its original position, and the pattern of the gravure plate 1c accepted by the blanket 10 is transferred to the printing substrate 7. FIG. Simultaneously with the above operation, the plate surface plate 2c moves to the lowered position of the ink removing blade 5c, and the ink removing blade 5c is lowered to a predetermined height. After moving to a predetermined position to remove excess ink from the gravure plate 1c, the ink removing blade 5c returns to its original position. Simultaneously with the above operation, the plate surface plate 2d moves to a predetermined lowering position of the ink filling blade 4d. The ink filling blade 4d descends to a predetermined height, and the plate surface plate 2d moves to a predetermined position in the direction of the blanket cylinder carriage unit 16 while being sufficiently pressed against the gravure plate 1d. The pattern grooves are filled with ink, and the ink filling blade 4d returns to its original position.

Next, as shown in FIG. 6(n), the blanket cylinder carriage 9 moves to a predetermined ink receiving start position for the gravure plate 1d and waits. Simultaneously with the above operation, the plate surface plate 2d moves to a position where the blanket 10 placed on the blanket cylinder 8 receives ink. Simultaneously with the above operation, the plate surface plate 2c returns to its original position.
Next, as shown in FIG. 6(o), the blanket cylinder 8 rotates to a predetermined position, descends to the predetermined position, and contacts the gravure plate 1d. The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronism with the movement of the blanket cylinder carriage 9. - 特許庁After that, the blanket cylinder 8 returns to its original position, and the pattern of the gravure plate 1d is received on the blanket 10. - 特許庁Simultaneously with the above operation, the ink supply nozzle 3a moves between a predetermined ink discharge start position and a discharge stop position while discharging ink, thereby supplying ink to the gravure plate 1a.

Next, as shown in FIG. 7(p), the blanket cylinder carriage 9 moves to a predetermined transfer start position on the printing base material 7, and the blanket cylinder 8 rotates to a predetermined position to perform a predetermined transfer. It descends to a position where it comes into contact with the printing base material 7 . The blanket cylinder carriage 9 moves to a determined position at a determined speed, and the blanket cylinder 8 rotates in synchronization with the movement of the blanket cylinder carriage 9. - 特許庁After that, the blanket cylinder 8 returns to its original position, and the pattern of the gravure plate 1 d accepted by the blanket 10 is transferred to the printing substrate 7 . Simultaneously with the above operation, the plate surface plate 2d moves to the lowered position of the ink removing blade 5d, and the ink removing blade 5d is lowered to a predetermined height. It moves to a predetermined position, removes excess ink from the gravure plate 1d, and the ink removing blade 5d returns to its original position. Simultaneously with the above operation, the plate surface plate 2a moves to a predetermined lowering position of the ink filling blade 4a. The ink filling blade 4a is lowered to a predetermined height, and the plate surface plate 2a is moved to a predetermined position in the direction of the blanket cylinder carriage unit 16 while being sufficiently pressed against the gravure plate 1a. The pattern grooves are filled with ink, and the ink filling blade 4a returns to its original position.

Next, as shown in FIG. 7(q), the blanket cylinder carriage 9 moves to a predetermined ink receiving start position for the gravure plate 1a and waits. Simultaneously with the above operation, the plate surface plate 2a moves to a position where the blanket 10 placed on the blanket cylinder 8 receives the ink. Simultaneously with the above operation, the plate surface plate 2d returns to its original position. Simultaneously with the above operation, the printing base material 7 is wound up and a new printing surface of the printing base material 7 is placed on the printing platen 6 . Thereafter, printing is continuously performed while repeating the same printing operation.

EXAMPLES Examples in which the present invention is specifically carried out will be described below. A glass plate having a thickness of 0.7 mm was used as the printing substrate 7, and the gravure plates 1a to 1d were metal lithographic plates engraved with a printing pattern by etching.
An appropriate number of dots of 25 μm×25 μm and two crosses each having a width of 50 μm and a length of 500 μm are printed on the printing substrate 7 as alignment marks. On each of the gravure plates 1a to 1d, two cross-shaped alignment patterns each having a width of 50 μm and a length of 500 μm are provided at the same relative positions as the alignment marks of the printing substrate 7. FIG.

When the alignment marks of the printing base material 7 and the alignment marks of the gravure plates 1a to 1d are printed, a pattern in which five squares overlap each other as shown in FIG. 8 is printed. A pattern having a groove width of 25 μm and an outer dimension of 95 μm×95 μm was provided on the gravure plate 1a. A pattern having a groove width of 25 μm and an outer dimension of 165 μm×165 μm was provided on the gravure plate 1b. A pattern having a groove width of 25 μm and an outer dimension of 235 μm×235 μm was provided on the gravure plate 1c. A pattern having a groove width of 25 μm and an outer dimension of 305 μm×305 μm was provided on the gravure plate 1d.

As the ink, a conductive silver paste having a viscosity of 5 to 10 Pa·s at an angular velocity of 10 rad/sec by a rheology measuring device was used. The ink was diluted with a dedicated ink diluent, and the dilution ratios of 2w%, 5w%, 10w% and 20w% were used for gravure plates 1a to 1d, respectively. As the blanket 10 for printing, a blanket mainly made of silicone rubber with a thickness of 0.9 mm, a hardness of 20° and a length of 650 mm was used. As the blanket cylinder 8, a cylinder made of SUS304 and having a width of 350 mm and a diameter of 100 mm was used.

The conditions for the dilution rate of 2w% were set at a moving speed of 50 mm/sec for the ink filling blade 4a and a moving speed of 20 mm/sec when receiving the blanket. The conditions for the dilution rate of 5w% were set at a moving speed of 50 mm/sec for the ink filling blade 4b and a moving speed of 50 mm/sec when receiving the blanket. The conditions for the dilution rate of 10 wt % were set to a moving speed of 150 mm/sec for the ink filling blade 4c and a moving speed of 100 mm/sec when receiving the blanket. The conditions for the dilution rate of 20w% were set at a moving speed of 200 mm/sec for the ink filling blade 4d and a moving speed of 200 mm/sec when receiving the blanket. The ink transfer speed to the printing base material 7 was all set to 150 mm/sec, the moving speed of the ink removing blades 5a to 5d was set to 100 mm/sec, and the conductive paste having the dilution rate was applied to the gravure plates 1a to 1d at 0.5 g/sec. Supplied in cm ² .

As a result of automatic continuous operation using ink materials with different printing conditions as described above, it was possible to print without stagnation or stoppage of the printing operation even if the printing conditions were different. A square overlapping print was obtained.
As a result, by using the printing apparatus 100 and the printing method according to the present embodiment, it is possible to print with various ink materials using a plurality of gravure plates 1a to 1d, and to accurately position the printing substrate 7 and the gravure plates 1a to 1d. Precise printing could be performed in a short period of time.

(others)
The present invention is not limited to the aspects shown in the embodiments, and includes all examples of forms, applications, and equivalents included in the concept of the present invention defined by the scope of claims. Accordingly, the present invention should not be construed in a limited manner, and can be applied to any other technology that falls within the spirit of the present invention.

REFERENCE SIGNS LIST 100 Printing devices 1a to 1d Gravure plates 2a to 2d Plate surface plates 3a to 3d Ink supply nozzles 4a to 4d Ink filling blades 5a to 5d Ink removal blade 6 Printing surface plate 7 Printing substrate 8 Blanket cylinder 9 Blanket cylinder carriage 10 Blanket 11 Alignment camera 12 Carriage movement rails 13a to 13d Printing surface plate movement rails 14a to 14d Gravure unit 14a Gravure unit 15 Printing unit 16 Blanket cylinder carriage unit

Claims (9)

A plate surface plate on which a plate is placed, a nozzle for supplying ink to the plate, an ink filling blade for filling the grooves of the plate with the ink supplied to the plate, and scraping off excess ink after the filling. A plurality of plate surface plate bases with ink removing blades are arranged in parallel,
a blanket cylinder base having a blanket cylinder on which the blanket is placed and an alignment camera;
A printing platen base with a printing platen on which a printing substrate is placed,
The plate surface plate reciprocates in a direction orthogonal to the parallel direction in which a plurality of the plate surface plate bases are arranged in parallel,
The blanket cylinder base is arranged so that the blanket cylinder can reciprocate in a direction orthogonal to the reciprocating direction of the plate surface plate,
A printing apparatus, wherein the printing surface plate base is arranged so that the blanket cylinder can reciprocate between the plate surface plate and the printing surface plate. The plate surface plate base includes a printing surface plate moving rail for reciprocatingly transferring the plate surface plate,
The blanket cylinder base comprises a carriage movement rail for reciprocally transporting the blanket cylinder,
The plate surface plate reciprocates in a direction orthogonal to the reciprocating motion of the blanket cylinder,
2. The printing apparatus according to claim 1, wherein the blanket cylinder reciprocates between the plate surface plate and the printing surface plate. The plate surface plate base is provided with a doctor holder for reciprocatingly moving the nozzle on the plate surface plate, and vertically moving the ink filling blade and the ink removing blade so as to be positionally adjustable. 3. A printing device according to claim 1 or 2. 4. The printing apparatus according to any one of claims 1 to 3, wherein the alignment camera recognizes alignment marks provided on the printing base material and the plate to adjust relative positions. A plurality of transport motors for driving the plate surface plate base, the printing surface plate base and the blanket cylinder base,
5. The printing apparatus according to any one of claims 1 to 4, wherein the plurality of transport motors are individually controlled by a control device. 6. The printing apparatus according to any one of claims 1 to 5, wherein the printing surface plate supplies the printing base material by sheet processing or roll-to-roll. A printing method using the printing apparatus according to any one of claims 1 to 6,
transferring a pattern from the selected plate on one of the blanket cylinders to the blanket;
transferring the pattern from the blanket to the printing substrate;
A printing method, wherein an operation of filling ink and an operation of scraping off excess ink are performed on the non-selected plates during the steps. A plate surface plate on which a plate is placed, a nozzle for supplying ink to the plate, an ink filling blade for filling the grooves of the plate with the ink supplied to the plate, and scraping off excess ink after the filling. A plurality of plate surface plate bases with ink removing blades are arranged in parallel,
a blanket cylinder base having a blanket cylinder on which the blanket is placed and an alignment camera;
A printing platen base with a printing platen on which a printing substrate is placed,
The plate surface plate base and the plate surface plate base so that the parallel direction in which the plurality of the plate surface plate bases are arranged in parallel and the parallel direction in which the blanket cylinder base and the printing surface plate base are arranged in parallel are orthogonal to each other. , a printing apparatus, wherein the blanket cylinder base and the printing surface plate base are arranged. A plate surface plate on which a plate is placed, a nozzle for supplying ink to the plate, an ink filling blade for filling the grooves of the plate with the ink supplied to the plate, and scraping off excess ink after the filling. A plurality of plate surface plate bases with ink removing blades are arranged in parallel,
a blanket cylinder base having a blanket cylinder on which the blanket is placed and an alignment camera;
A printing platen base with a printing platen on which a printing substrate is placed,
The blanket cylinder base is arranged so that the blanket cylinder can reciprocate in a direction parallel to the parallel direction of the plate surface plate base,
A printing apparatus, wherein the printing surface plate base is arranged so that the blanket cylinder can reciprocate between the plate surface plate and the printing surface plate.

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