JP2021109338A - Printing device and printing method - Google Patents

Abstract

To provide a printing device that can obtain an optimal printing pattern from a variety of ink materials using a plurality of printing plates, obtain precise position accuracy by accurately positioning a printing base material and a gravure plate, and perform printing in a short time.SOLUTION: The printing device comprises: a plate press platen on which a printing plate is placed; a nozzle that supplies the printing plate with ink; a blanket cylinder base comprising a blanket cylinder on which a blanket is placed and an alignment camera, in which a plurality of plate press plate bases comprising an ink filling blade for filling a groove of the printing plate with the ink supplied to the printing plate and an ink removal blade for scraping up ink remaining after the filling are arranged in parallel; and a printing press plate base comprising a printing press plate on which a printing base material is placed, where the plate press plate base, the blanket cylinder base and the printing press plate base are arranged in an orthogonal direction.SELECTED DRAWING: Figure 1

Description

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

A printing method has been proposed as a method for forming a pattern of a flat panel display such as a liquid crystal display or an organic EL display and forming color pixels of a color filter. In addition, a printing method has been proposed as a method for forming fine print patterns and two-dimensional hologram sheets for decoration of printed matter surfaces, packages, wrapping paper, etc., or for preventing counterfeiting of cards, event tickets, gold tickets, securities, etc. ing.

Patent Document 1 discloses multicolor printing using an offset printing method. As shown in FIG. 9, the plate trolley 204 for transferring a plurality of plates 201a to 201c arranged in the transfer direction, the printing trolley 205 for transferring the printing substrate, and the blankets 202a to 202c corresponding to each plate have circumferences. A printing apparatus 200 having a blanket cylinder 206 provided in the direction is shown. In this printing apparatus 200, the plate carriage 204 moves to the lower side of 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 has become. Subsequently, when the pattern is transferred to the printing substrate, the printing carriage 205 moves to the lower side of the blanket cylinder 206 and prints the pattern of one blanket while synchronously moving according to the rotation of the blanket cylinder 206. After that, the printing carriage 205 returns to the position where the next pattern is transferred, and prints the pattern from the next blanket while similarly moving synchronously. In this way, since the printing trolley 205 reciprocates by the number of plates in order to receive the pattern, the printing tact until printing all the patterns becomes long.

The plate trolley 204 becomes longer as the number of plates 201a to 201c increases, and when a pattern is received from the plate to the blankets 202a to 202c, the printing trolley 205 can be retracted to a sufficient distance so as not to interfere with the plate trolley 204. is necessary. Therefore, as the total length of the printing apparatus 200 becomes longer and the moving distance of the moving carriage becomes longer, the straightness of the printing apparatus and the positioning accuracy of the moving carriage deteriorate, and the printing pattern position accuracy on the printing substrate and the printing pattern position accuracy of each plate become worse. It is not suitable for high-definition and high-precision pattern formation in terms of the consistency of the position of the pattern.

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 substrate, and a blanket cylinder 306a corresponding to each plate 301a to 301c. The printing apparatus 300 having ~ 306c is shown. In this printing device 300, the plate carriage 304 moves to the lower side of the blanket cylinders 306a to 306c, and the patterns of the plates 301a to 301c are transferred to the blankets 302a to 302c of the blanket cylinders 306a to 306c corresponding to each plate. Transfer multiple patterns to the blanket by moving once. Subsequently, when the pattern is transferred to the printing substrate, the printing carriage 305 moves to the lower side of the blanket cylinders 306a to 306c and prints the pattern of one blanket while synchronously moving according to the rotation of the blanket cylinder. After that, the printing carriage 305 moves to a position where the next pattern is to be transferred, and prints the pattern from the next blanket. The printing trolley 305 can receive the pattern in the shortest moving distance and can shorten the printing tact.

There is an optimum blanket pressing pressure for transferring a pattern from a plate to a blanket for each ink and an optimum rotation speed of the blanket cylinder, and the types of ink increase as the number of plates increases. Therefore, if the blanket cylinders are installed on the same trolley, the rotation speed of each blanket cylinder will be the same, and the pattern cannot always be transferred to the blanket at the optimum rotation speed, and the print pattern shape will not be in the optimum state and will be high. It is not suitable for forming fine and high-precision patterns.

Japanese Unexamined Patent Publication No. 5-169626 JP-A-2007-144644

However, in the invention described in Patent Document 1, the optimum blanket pressing pressure to the plate and the rotation speed of the blanket cylinder can be set for each ink type, but the printing tact becomes longer and the apparatus becomes longer, which makes it finer. There is a problem that the position accuracy of wiring is not stable. In the invention described in Patent Document 2, the printing tact can be shortened, but the blanket pressing pressure on the plate and the rotation speed of the blanket cylinder cannot be set to the optimum plate for each ink type, and the optimum printing pattern shape can be obtained. There is a problem that cannot be formed.

In view of the above problems, the present invention can obtain the optimum print pattern shape with various ink materials using a plurality of plates, and by accurately positioning the printing base material and the gravure plate, a precise position can be obtained. It is an object of the present invention to provide a printing apparatus capable of obtaining accuracy and printing in a short time.
In order to solve the above problems, the printing apparatus according to the present invention includes a plate plate on which a plate is placed, a nozzle for supplying ink to the plate, and an ink for filling the groove of the plate with the ink supplied to the plate. A plurality of plate plate bases provided with a filling blade and an ink removing blade for scraping off excess ink due to the filling are arranged in parallel, and a blanket body on which a blanket is placed and a blanket body base provided with an alignment camera are provided. A printing platen base provided with a printing platen on which the printing substrate is placed is provided, and the plate platen base, the blanket body base, and the printing platen base are arranged in the orthogonal direction. It is characterized by being.

As a result, the optimum print pattern shape can be obtained with various ink materials using a plurality of plates, and precise positioning accuracy can be obtained by accurately positioning the printing base material and the gravure plate, and in a short time. Can print.
Further, in one aspect of the present invention, the plate surface plate base includes a printing surface plate moving rail that reciprocally transfers the plate surface plate, and the blanket body base can reciprocate the blanket body. The plate surface plate reciprocates in a direction orthogonal to the reciprocating operation of the blanket surface plate, and the blanket body reciprocates between the position of the plate surface plate and the printing surface plate. ..

Further, in one aspect of the present invention, the nozzle is reciprocally moved on the plate surface plate to the plate surface plate base, and the ink filling blade and the ink removal blade are moved up and down so as to be adjustable in position. A doctor holder is provided.
Further, in one aspect of the present invention, the alignment camera recognizes the alignment mark provided on the blanket body, the printing base material, and the plate, and adjusts the relative position.
Further, in one aspect of the present invention, a plurality of transfer motors for driving the plate surface plate base, the printing surface plate base, and the blanket body base are provided, and the plurality of transfer motors are individually controlled by a control device. do.

Further, in one aspect of the present invention, the printing surface plate supplies the printing base material by sheet-fed processing or roll-to-roll.
Further, the printing method of the present invention is a printing method using the printing apparatus according to any one of the above, in which a pattern is transferred from the plate selected by one of the blanket cylinders to the blanket, and the blanket is transferred. It is characterized by having a step of transferring the pattern to the printing substrate, and during the step, an operation of filling ink and an operation of scraping excess ink in the non-selective plate are performed. ..

According to the present invention, it is possible to obtain an optimum print pattern shape for various ink materials using a plurality of plates, and it is possible to obtain precise position accuracy by accurately positioning the printing base material and the gravure plate. It is possible to provide a printing apparatus capable of printing in a short time.

It is a plan view of the printing apparatus 100 which concerns on this invention. It is the schematic of the printing process using the printing apparatus 100 shown in FIG. It is the schematic of the printing process following FIG. It is the schematic of the printing process following FIG. It is the schematic of the printing process following FIG. It is the schematic of the printing process following FIG. It is the schematic of the printing process following FIG. It is a plane schematic diagram which shows an example of a print pattern. It is a schematic diagram of the printing apparatus and a printing process shown in Patent Document 1. It is a schematic diagram of the printing apparatus and the printing process shown in Patent Document 2.

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 and the dimensional ratio of each part are different from the actual ones. Further, the embodiments shown below exemplify a configuration for embodying the technical idea of the present invention, and the technical idea of the present invention describes the materials, shapes, structures, etc. of the constituent parts as follows. It is not specific to anything. The technical idea of the present invention may be modified in various ways within the technical scope specified by the claims stated in the claims.

The overall configuration of one embodiment of the present invention is shown in FIG. As shown in FIG. 1, the printing apparatus 100 shown in the present embodiment includes gravure plate units 14a to 14d, a printing unit 15, and a blanket bogie unit 16. Further, in the printing apparatus 100, the gravure plate units 14a to 14d are arranged so as to be orthogonal to the stretching direction of the blanket bogie unit 16 and the printing unit 15. The gravure plate units 14a to 14d, the printing unit 15, and the blanket body bogie unit 16 correspond to the plate surface plate base, the printing surface plate base, and the blanket body base, respectively, in the present invention. Further, the printing device 100 includes a plurality of transport motors for driving the gravure plate units 14a to 14d, the printing unit 15, and the blanket bogie unit 16, and these transport motors are individually controlled by the control device.

The gravure plate units 14a to 14d include flat plate-shaped gravure plates 1a to 1d, plate plate plates 2a to 2d on which gravure plates 1a to 1d are installed, and ink supply nozzles 3a to 3d for supplying ink to the gravure plates 1a to 1d. The 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 the ink removing blades 5a to 5d for scraping off the excess ink after the ink filling are provided. The plate surface plates 2a to 2d are movable in the vertical direction in the drawing along the printing surface plate moving rails 13a to 13d. Further, the ink supply nozzles 3a to 3d are reciprocally moved on the plate surface plates 2a to 2d to the gravure plate units 14a to 14d, and the positions of the ink filling blades 4a to 4d and the ink removal blades 5a to 5d can be adjusted freely. 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 moving rails 13a to 13d. .. The printing surface plate 6 sequentially supplies the printing base material 7 by sheet-fed processing or roll-to-roll.
The blanket bogie unit 16 includes a blanket bogie 9 and a bogie moving rail 12. The blanket body cart 9 aligns the blanket 10 that receives the ink of the gravure plates 1a to 1d and transfers it to the printing base material 7, the blanket body 8 on which the blanket 10 is installed, and the printing base material 7 and the gravure plates 1a to 1d. The alignment camera 11 for performing the above is provided. The blanket body bogie 9 is movable in the left-right direction in the drawing along the bogie movement rail 12.

Since the printing apparatus 100 of the present invention has an ink supply, filling, and removing mechanism for each of the gravure plate units 14a to 14d, various types of ink can be used at the same time, and the gravure plate units 14a to 14d and the blanket body carriage unit 16 are separate. The operations of the above are performed, and the ink filling operation and the excess ink removing operation of the gravure plates 1a to 1d, the ink receiving operation of the blanket 10, and the ink transfer operation of the printing substrate 7 can be performed at the same time.
The printing process using the printing apparatus 100 of the present invention will be described with reference to FIGS. 2 to 10. First, as shown in FIG. 2A, the gravure plates 1a to 1d are installed on the plate surface plates 2a to 2d, the blanket 10 is installed on the blanket cylinder 8, and the printing base material 7 is installed on the printing surface plate 6.

Next, as shown in FIG. 2B, the plate surface plates 2a to 2d move along the printing surface plate moving rails 13a to 13d to the ink receiving positions of the blanket cylinder 8. The blanket body carriage 9 moves along the carriage moving rail 12 to a predetermined alignment mark reading position. In this description, a method of aligning with reference to the alignment mark of the printing substrate 7 will be described. The alignment mark may be selected based on the alignment mark for both the printing substrate 7 and the gravure plates 1a to 1d depending on the printing situation. The alignment mark position of the printing substrate 7 is measured and registered as a reference position.

Next, the alignment mark of the gravure plate 1a is moved to the alignment mark position, the alignment mark of the gravure plate 1a is measured, the plate surface plate 2a is operated, and the alignment mark of the gravure plate 1a is aligned with the registered reference position and fixed. After that, it moves to the alignment mark position of the gravure plates 1b to 1d and adjusts each alignment mark position to the reference position. A known alignment system is used to align the alignment marks, and the number of pixels of the camera, lens magnification and resolution, pattern matching method, edge detection method, etc. are selected according to the alignment accuracy.

Next, as shown in FIG. 2C, the plate surface plates 2a to 2d return to their original positions after the alignment of the alignment mark positions is completed. The ink supply nozzle 3a moves from a predetermined ink ejection start position to a ejection stop position while ejecting ink, and supplies ink to the gravure plate 1a.
Next, as shown in FIG. 3D, the plate surface plate 2a moves to a predetermined lowering position of the ink filling blade 4a. With the ink filling blade 4a descending to a predetermined height and sufficiently pressed against the gravure plate 1a, the plate surface plate 2a moves to a predetermined position in the blanket bogie unit 16 direction, and the pattern of the gravure plate 1a The groove is filled with ink, and the ink filling blade 4a returns to its original position. At the same time as the above operation, the blanket body carriage 9 moves to a predetermined ink receiving start position and stands by.

Next, as shown in FIG. 3 (e), the plate surface plate 2a moves to a position where ink is received by the blanket 10 installed on the blanket cylinder 8. Next, as shown in FIG. 3 (f), the blanket body 8 rotates to a predetermined position, descends to a predetermined position, and comes into contact with the gravure plate 1a. Further, the blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. The blanket body 8 returns to its original position, and the blanket 10 receives the pattern of the gravure plate 1a. At the same time as the above operation, the ink supply nozzle 3b moves from the predetermined ink ejection start position to the ejection stop position while ejecting ink, and supplies ink to the gravure plate 1b.

Next, as shown in FIG. 4 (g), the blanket body carriage 9 moves to a predetermined transfer start position of the printing substrate 7, the blanket body 8 rotates to a predetermined position, and is predetermined. It descends to the position and comes into contact with the printing substrate 7. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket cylinder 8 returns to the original position, and the pattern of the gravure plate 1a received by the blanket 10 is transferred to the printing substrate 7. At the same time as the above operation, the plate surface plate 2a moves to the lowering position of the ink removing blade 5a, the ink removing blade 5a lowers to a predetermined height, and the plate surface plate 2a is sufficiently pressed against the gravure plate 1a. It moves to a predetermined position, removes excess ink of the gravure plate 1a, and returns the ink removing blade 5a to the original position. Further, at the same time as the above operation, the plate surface plate 2b moves to the lowering 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 blanket body carriage unit 16 direction while being sufficiently pressed against the gravure plate 1b, and the gravure plate 1b Ink is filled in the pattern groove of the above, and the ink filling blade 4b returns to the original position.

Next, as shown in FIG. 4H, the blanket body carriage 9 moves to a predetermined ink receiving start position of the gravure plate 1b and stands by. At the same time as the above operation, the plate surface plate 2b moves to a position where ink is received by the blanket 10 installed on the blanket cylinder 8. At the same time as the above operation, the plate surface plate 2a returns to the original position.
Next, as shown in FIG. 4 (i), the blanket body 8 rotates to a predetermined position, descends to a predetermined position, and comes into contact with the gravure plate 1b. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket body 8 returns to the original position, and the pattern of the gravure plate 1b is accepted by the blanket 10. At the same time as the above operation, the ink supply nozzle 3c moves from the predetermined ink ejection start position to the ejection stop position while ejecting ink, and supplies ink to the gravure plate 1c.

Next, as shown in FIG. 5 (j), the blanket body carriage 9 moves to a predetermined transfer start position of the printing substrate 7, and the blanket body 8 is rotated to a predetermined position to be predetermined. It descends to the above position and comes into contact with the printing substrate 7. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket cylinder 8 returns to the original position, and the pattern of the gravure plate 1b received by the blanket 10 is transferred to the printing substrate 7. At the same time as the above operation, the plate surface plate 2b moves to the lowering position of the ink removing blade 5b, the ink removing blade 5b lowers to a predetermined height, and the plate surface plate 2b is sufficiently pressed against the gravure plate 1b. It moves to a predetermined position, removes excess ink from the gravure plate 1b, and returns the ink removing blade 5b to its original position. At the same time as 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 descends to a predetermined height, and the plate surface plate 2c moves to a predetermined position in the blanket bogie unit 16 direction while being sufficiently pressed against the gravure plate 1c, and the gravure plate 1c The pattern groove is filled with ink, and the ink filling blade 4c returns to its original position.

Next, as shown in FIG. 5 (k), the blanket body carriage 9 moves to the predetermined ink receiving start position of the gravure plate 1c and stands by. At the same time as the above operation, the plate surface plate 2c moves to a position where ink is received by the blanket 10 installed on the blanket cylinder 8. At the same time as the above operation, the plate surface plate 2b returns to the original position.
Next, as shown in FIG. 5 (l), the blanket cylinder 8 rotates to a predetermined position, descends to a predetermined position, and comes into contact with the gravure plate 1c. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket body 8 returns to the original position, and the pattern of the gravure plate 1c is accepted by the blanket 10. At the same time as the above operation, the ink supply nozzle 3d moves from the predetermined ink ejection start position to the ejection stop position while ejecting ink, and supplies ink to the gravure plate 1d.

Next, as shown in FIG. 6 (m), the blanket body carriage 9 moves to a predetermined transfer start position of the printing substrate 7, and the blanket body 8 is rotated to a predetermined position to be predetermined. It descends to a vertical position and comes into contact with the printing substrate 7. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket cylinder 8 returns to the original position, and the pattern of the gravure plate 1c received by the blanket 10 is transferred to the printing substrate 7. At the same time as the above operation, the plate surface plate 2c moves to the lowering position of the ink removing blade 5c, the ink removing blade 5c lowers to a predetermined height, and the plate surface plate 2c is sufficiently pressed against the gravure plate 1c. It moves to a predetermined position, removes excess ink of the gravure plate 1c, and returns the ink removing blade 5c to the original position. At the same time as 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 blanket body carriage unit 16 direction while being sufficiently pressed against the gravure plate 1d, and the gravure plate 1d The pattern groove is filled with ink, and the ink filling blade 4d returns to its original position.

Next, as shown in FIG. 6 (n), the blanket body carriage 9 moves to the predetermined ink receiving start position of the gravure plate 1d and stands by. At the same time as the above operation, the plate surface plate 2d moves to a position where ink is received by the blanket 10 installed on the blanket cylinder 8. At the same time as the above operation, the plate surface plate 2c returns to the original position.
Next, as shown in FIG. 6 (o), the blanket body 8 rotates to a predetermined position, descends to a predetermined position, and comes into contact with the gravure plate 1d. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket body 8 returns to the original position, and the pattern of the gravure plate 1d is accepted by the blanket 10. At the same time as the above operation, the ink supply nozzle 3a moves from the predetermined ink ejection start position to the ejection stop position while ejecting ink, and supplies ink to the gravure plate 1a.

Next, as shown in FIG. 7 (p), the blanket body carriage 9 moves to a predetermined transfer start position of the printing substrate 7, and the blanket body 8 is rotated to a predetermined position to be predetermined. It descends to a vertical position and comes into contact with the printing substrate 7. The blanket body carriage 9 moves to a predetermined position at a predetermined speed, and the blanket body 8 rotates in synchronization with the movement of the blanket body carriage 9. After that, the blanket cylinder 8 returns to the original position, and the pattern of the gravure plate 1d received by the blanket 10 is transferred to the printing substrate 7. At the same time as the above operation, the plate plate 2d moves to the lowering position of the ink removing blade 5d, the ink removing blade 5d lowers to a predetermined height, and the plate plate 2d is sufficiently pressed against the gravure plate 1d. It moves to a predetermined position, removes excess ink of the gravure plate 1d, and returns the ink removing blade 5d to the original position. At the same time as 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 descends to a predetermined height, and the plate surface plate 2a moves to a predetermined position in the blanket bogie unit 16 direction while being sufficiently pressed against the gravure plate 1a, and the gravure plate 1a The pattern groove is filled with ink, and the ink filling blade 4a returns to its original position.

Next, as shown in FIG. 7 (q), the blanket body carriage 9 moves to the predetermined ink receiving start position of the gravure plate 1a and stands by. At the same time as the above operation, the plate surface plate 2a moves to a position where ink is received by the blanket 10 installed on the blanket cylinder 8. At the same time as the above operation, the plate surface plate 2d returns to the original position. Further, at the same time as the above operation, the printing base material 7 is wound up and the printing base material 7 on the new printing surface is installed on the printing surface plate 6. After that, printing is continuously performed while repeating the same printing operation.

Hereinafter, examples of concrete implementation of the present invention will be described. A glass plate having a thickness of 0.7 mm was used as the printing base material 7, and the gravure plates 1a to 1d used were metal lithographic plates engraved with a printing pattern by etching.
Two crosses having a width of 50 μm and a length of 500 μm are already printed on the printing substrate 7 with an appropriate number of dots of 25 μm × 25 μm and alignment marks. On each of the gravure plates 1a to 1d, two cross-shaped alignment patterns having a width of 50 μm and a length of 500 μm are installed at the same positions as the alignment marks of the printing substrate 7.

When the alignment mark of the printing substrate 7 and the alignment mark positions of the gravure plates 1a to 1d are aligned and printed, a pattern is adopted in which five squares as shown in FIG. 8 are overlapped. The gravure plate 1a was provided with a pattern having a groove width of 25 μm and an outer diameter of 95 μm × 95 μm. The gravure plate 1b was provided with a pattern having a groove width of 25 μm and an outer diameter of 165 μm × 165 μm. The gravure plate 1c was provided with a pattern having a groove width of 25 μm and an outer diameter of 235 μm × 235 μm. The gravure plate 1d was provided with a pattern having a groove width of 25 μm and an outer diameter of 305 μm × 305 μm.

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

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

As a result of performing automatic continuous operation using the above-mentioned ink materials with different printing conditions, printing can be performed without stagnation or stop of the printing operation even if the printing conditions are different, and it is assumed that the printing lines have a well-formed print shape. A printed matter with overlapping squares 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 the printing base material 7 and the gravure plates 1a to 1d can be accurately positioned. Precise printing could be performed in a short time.

(others)
The present invention is not limited to the embodiments shown in the embodiments, and all the embodiments, applications, and equivalents included in the idea of the present invention defined by the claims are included in the present invention. Therefore, the present invention should not be construed in a limited manner and can be applied to any other technique belonging to the scope of the idea of the present invention.

100 ... Printing device 1a to 1d ... Gravure plate 2a to 2d ... Plate surface plate 3a to 3d ... Ink supply nozzle 4a to 4d ... Ink filling blade 5a to 5d ... Ink removal blade 6 ... Printing surface plate 7 ... Printing surface plate 8 ... Blanket body 9 ... Blanket body cart 10 ... Blanket 11 ... Alignment camera 12 ... Carriage moving rails 13a to 13d ... Printing surface plate moving rails 14a to 14d ... Gravure version unit 14a ... Gravure version unit 15 ... Printing unit 16 ... Blanket body cart unit

Claims (7)

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 groove of the plate with the ink supplied to the plate, and scraping off excess ink due to the filling. Multiple plate surface plate bases equipped with ink removal blades are arranged in parallel,
A blanket barrel on which the blanket is placed and a blanket barrel base with an alignment camera,
A printing surface plate base equipped with a printing surface plate on which a printing base material is placed is provided.
A printing apparatus characterized in that the plate surface plate base, the blanket body base, and the printing surface plate base are arranged in orthogonal directions. The plate surface plate base includes a printing surface plate moving rail that reciprocally transfers the plate surface plate.
The blanket body base includes a bogie moving rail that reciprocally transfers the blanket body.
The plate surface plate reciprocates in a direction orthogonal to the reciprocating motion of the blanket body.
The printing apparatus according to claim 1, wherein the blanket body reciprocates between the plate surface plate and the printing surface plate. The plate surface plate base is provided with a doctor holder that moves the nozzle reciprocally on the plate surface plate and moves the ink filling blade and the ink removing blade up and down so as to be adjustable in position. The printing apparatus according to claim 1 or 2. The printing according to any one of claims 1 to 3, wherein the alignment camera recognizes the alignment mark provided on the blanket body, the printing base material, and the plate, and adjusts the relative position. Device. A plurality of transfer motors for driving the plate surface plate base, the printing surface plate base, and the blanket body base are provided.
The printing apparatus according to any one of claims 1 to 4, wherein the plurality of transfer motors are individually controlled by a control device. The printing apparatus according to any one of claims 1 to 5, wherein the printing surface plate supplies the printing base material by sheet-fed processing or roll-to-roll. A printing method using the printing apparatus according to any one of claims 1 to 6.
It has a step of transferring a pattern from the plate selected by one of the blanket cylinders to the blanket, and transferring the pattern from the blanket to the printing substrate.
A printing method characterized in that, during the steps, an operation of filling ink and an operation of scraping off excess ink are performed in the non-selective plate.

Images