TW201706139A - Doctor blade device, printing device, printing method, and method for manufacturing wiring substrate - Google Patents

Abstract

A doctor blade device (30) that slides over a flat plate-shaped intaglio plate (90) is provided with a blade body (31) and an ink holder (33) provided in front of the blade body (31) in the sliding direction of the doctor blade device (30). The ink holder (33) has a distal end part (351) which comes into contact with the vicinity of a distal end part (311) of the blade body (31) and covers the front of the blade body (31) in the vicinity of the distal end part (311) of the blade body (31) when pressure force is applied to the ink holder (33) in a direction approaching the blade body (31), and an urging mechanism 37 for separating the distal end part (351) from the blade body (31) through urging force that urges the distal end part (351) in a direction away from the blade body (31) when the pressure force is released. The distal end part (351) is able to come into contact with electroconductive ink (M) present on the intaglio plate (90); and the ink holder (33) is able to hold the electroconductive ink (M) via at least the distal end part (351) when the pressure force has been released.

Description

Scraper device, printing device, printing method, and manufacturing method of wiring substrate

The present invention relates to a doctor blade device, a printing device, a printing method, and a method of manufacturing a wiring board.

An offset blade is provided on the intaglio plate, and the ink is filled in the intaglio while the squeegee is slid on the intaglio plate to scrape excess ink on the intaglio plate. This technique is known. (For example, refer to Patent Document 1)

[First technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 9-300574

In the flat gravure, after the excess ink is scraped by a doctor blade as described above, the doctor blade is moved away from the intaglio plate in order to transfer the ink filled in the intaglio plate to the object to be transferred. At this time, if the ink is in contact with the tip end of the blade, ink may hang down from the tip end of the blade. Therefore, when the doctor blade is pressed again in the intaglio plate, there is a problem that the icy ink dripping from the front end of the blade is also pressed and smudged, and is returned to the rear of the blade (so-called oozing occurs), and occurs. Bad printing.

The problem to be solved by the present invention is to provide a printing inhibition A blade device, a printing device, a printing method, and a method of manufacturing a wiring board.

[1] A doctor apparatus for sliding on a flat plate-like intaglio plate according to the present invention, comprising: a blade body; and an ink holding portion provided in front of the blade body in a sliding direction of the blade device; wherein the ink holding portion has: The front end portion is in contact with the vicinity of the front end of the blade body when a pressing force in a direction approaching the blade body is applied to the ink holding portion, and covers the front side of the blade body near the front end of the blade body; and a pushing tool When the pressing force is released, the front end portion is separated from the blade body by a pushing force that advances the front end portion in a direction away from the blade body; the front end portion is in contact with the conductive ink existing on the intaglio plate; And the ink holding portion holds the conductive ink by at least the distal end portion in a state where the pressing force is released.

[2] In the above invention, the following formula (1) can be satisfied: 1 mm ≦ A ≦ 5 mm (1)

In the above formula (1), A is a distance between a tip end of the blade body and a contact point of the tip end portion in contact with the blade body.

[3] In the above invention, the invention may further include: a blade holder that supports the blade body.

[4] In the above invention, the ink holding portion may further include: a support portion supported by the blade holder; the movable portion including the distal end portion; and a support shaft rotatably connecting the support portion and the movable portion Wherein the above-mentioned propelling tool moves the movable portion away from the above when the pressing force is released The direction of the blade body is advanced.

[5] In the above invention, the ink retaining portion may be a plate-shaped elastic member having a first end portion supported by the blade holder and a second end portion constituting the front end portion; and the elastic member is as described above When the pressing force is released, the front end portion is advanced in a direction away from the blade body by the elastic force of the elastic member.

[6] A printing apparatus according to the present invention, comprising: the above-mentioned doctor apparatus; a base supporting the gravure; a supply means for supplying the conductive ink to the intaglio; and a moving mechanism for moving the base and the scraper relative to each other .

[7] A method for printing a conductive ink using a flat plate intaglio according to the present invention, comprising: a first process for preparing the doctor blade device; a second process for sliding the blade device relative to the intaglio plate; and a third process, Lifting the scraper device away from the intaglio plate; wherein the second process includes: applying the pressing force to the ink holding portion to bring the front end portion into contact with a vicinity of a front end of the blade body, and covering the blade body by the front end portion The front side and the third process include: releasing the pressing force, and the front end portion is separated from the blade body by the pushing force.

[8] The above invention may further include: a fourth process, after the third process, receiving the conductive ink from the intaglio plate on the transfer body; and a fifth process of transferring the conductive ink from the transfer The body is transferred to a substrate.

[9] A method of manufacturing a wiring board according to the present invention, comprising: a printing process of forming a printed pattern on a substrate by the printing method; and a drying process to dry the printed pattern.

According to the present invention, when a pressing force is applied to the ink holding portion in a direction approaching the blade body, the front end portion of the ink holding portion covers the front side of the blade body in the vicinity of the front end of the blade body to adhere the conductive ink. At this front end. Then, when the pressing force is released, the front end portion is separated from the upper blade body by pushing the tip end portion in a direction away from the blade body.

At this time, since the tip end portion of the ink holding portion is separated from the blade body and the conductive ink is separated from the blade body, it is possible to suppress the conductive ink from hanging down from the tip end of the blade body. Thereby, occurrence of printing defects caused by bleeding of the conductive ink can be suppressed.

1‧‧‧Printing device

10‧‧‧ platform

11‧‧‧ Keep face

20‧‧‧ substrate table

21‧‧‧ Keep face

30‧‧‧Scraper device

31‧‧‧ blade body

311‧‧‧ front end

312‧‧‧ base end

32‧‧‧blade support

321‧‧‧First support assembly

322‧‧‧Second support assembly

33‧‧‧Ink retention department

34‧‧‧Support Department

341‧‧‧ bottom wall

342‧‧‧ side wall

342a‧‧‧through port

35‧‧‧movable department

351‧‧‧ front end

352‧‧‧ penetration

36‧‧‧ fulcrum

37‧‧‧Promoting agencies

371‧‧‧Torque coil spring

372‧‧‧ coil part

373, 374‧‧‧ Torque arm

381‧‧‧ Strengthening board

382‧‧‧ Fixtures

39‧‧‧Ink retention department

391‧‧‧Fixed end

392‧‧‧Free end

40‧‧‧Scraper stand

50‧‧‧ Dispenser

60‧‧‧Transfer roller

61‧‧‧Shell

62‧‧‧Shell

71, 72‧‧‧ mobile agencies

80‧‧‧ device frame

85‧‧‧ drying oven

90‧‧‧gravure

91‧‧‧Upper surface

92‧‧‧ concave pattern

100‧‧‧Wiring substrate

110‧‧‧Substrate

120‧‧‧Conductor layer

M‧‧‧conductive ink

P‧‧‧ touch points

S10‧‧‧Printing process

S20‧‧‧ Preparation process

S30‧‧‧ Filling process

S40‧‧‧ Receiving process

S50‧‧‧Transfer process

S60‧‧‧Drying process

S31~S35‧‧‧Steps

X, XV‧‧‧ part

Fig. 1 is a plan view showing a printing apparatus according to an embodiment of the present invention.

Fig. 2 is a side cross-sectional view showing a printing apparatus according to an embodiment of the present invention.

[Fig. 3] Fig. 3 is a view showing a doctor apparatus according to an embodiment of the present invention, wherein Fig. 3(a) is a perspective view, and Fig. 3(b) is a third diagram (a). Sectional view of line IIIb-IIIb.

Fig. 4 is an exploded perspective view showing an ink retaining portion according to an embodiment of the present invention.

[Fig. 5] Fig. 5 is a flowchart showing a method of manufacturing a wiring board according to an embodiment of the present invention.

[Fig. 6] Fig. 6 is a view showing a method of manufacturing a wiring board according to an embodiment of the present invention, and is a flowchart showing details of a filling process.

[Fig. 7] Fig. 7(a) is a view showing step S31 of Fig. 6, and Fig. 7(b) is a view showing step S32 of Fig. 6.

[Fig. 8] Fig. 8 is a cross-sectional view showing step S33 of Fig. 6.

[Fig. 9] Fig. 9(a) is a view showing step S34 of Fig. 6, and Fig. 9(b) is a view showing step S35 of Fig. 6.

[Fig. 10] Fig. 10 is a partially enlarged view of a portion X of Fig. 9(b).

[Fig. 11] Fig. 11 (a) and Fig. 11 (b) are diagrams showing a method of manufacturing a wiring board according to an embodiment of the present invention, and are sectional views (part 1) for explaining a receiving process.

[Fig. 12] Fig. 12 is a view showing a method of manufacturing a wiring board according to an embodiment of the present invention, and is a cross-sectional view (part 2) for explaining a receiving process.

[Fig. 13] Fig. 13 (a) and Fig. 13 (b) are diagrams showing a method of manufacturing a wiring board according to an embodiment of the present invention, and are sectional views for explaining a transfer process (part 1) .

[Fig. 14] Fig. 14 (a) and Fig. 14 (b) are diagrams showing a method of manufacturing a wiring board according to an embodiment of the present invention, and are sectional views for explaining a transfer process (Part 2) .

[Fig. 15] Fig. 15 is a partially enlarged view of the XV portion of Fig. 13(b).

[ Fig. 16] Fig. 16 is a cross-sectional view showing a modification of the doctor blade device according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described based on the drawings. In addition, in the drawings used in the following description, in order to facilitate understanding of the features of the present invention, in order to facilitate the enlargement of the portion to be focused, the size ratio of each element Examples and the like may not be the same as the actual ones.

1 is a plan view showing a printing apparatus according to an embodiment of the present invention; FIG. 2 is a side cross-sectional view showing a printing apparatus according to an embodiment of the present invention; and FIG. 3 is a view showing an embodiment of the present invention. Fig. 3(a) is a perspective view, Fig. 3(b) is a sectional view taken along line IIIb-IIIb of Fig. 3(a); Fig. 4 is an exploded strabismus The figure shows an ink holding portion according to an embodiment of the present invention.

In the printing apparatus 1 of the present embodiment, the wiring substrate 100 is manufactured by printing the conductive ink M on the substrate 110 by a Gravure Offset printing method (see FIG. 14(b)).

The wiring substrate 100 includes a substrate 110 and a conductor layer 120. The base material 110 is an insulating base material such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), or polyimine (PI). The conductor layer 120 is formed by curing the conductive ink M transferred onto the substrate 110 by the printing apparatus 1. The conductor layer 120 is made of a conductive material containing silver, copper, nickel, tin, antimony, zinc, indium, palladium, graphite, etc., and comprises an acrylic resin, a polyester resin, an epoxy resin, a vinyl resin, an amine ester resin, and a phenol. It is composed of a binder resin such as a resin or a polyimide resin. Further, the binder resin may be omitted from the material constituting the conductor layer 120.

Incidentally, in Fig. 14(b), reference numeral (120) shows a conductive layer obtained by curing the conductive ink M in a drying oven 85 (described later). In the same figure, the symbol (100) is a wiring substrate showing the conductor layer 120 which has been cured by the drying furnace 85. The "wiring substrate 100" of the present embodiment is an example of the "substrate 110" of the present invention, and the "substrate 110" of the present embodiment is an example of the "substrate" of the present invention.

Further, the conductive ink M of the present embodiment is made of a material having a viscosity of 5 Pa ‧ s to 50 Pa ‧ s. The conductive ink M is composed of a mixture of various additives and a solvent in addition to the conductive material and the binder resin constituting the conductor layer 120 described above. The solvent may be appropriately selected according to the type of the binder resin to be used. For example, when a polyester resin is used as the binder resin, cyclohexyl acetate or butyl carbitol acetate (butyl) may be mentioned. Carbitol acetate), acetic acid-2-butoxy, isobutanol, 2-ethylbutanol, ethyl carbitol, carbitol acetate, butyl carbitol acetate, Butyl cellosolve, isophorone, etc. As the additive, a curing agent, a coupling agent, a corrosion inhibitor, and the like can be exemplified. The "conductive ink M" of the present embodiment is an example corresponding to the "conductive ink" of the present invention.

As shown in FIGS. 1 and 2, the printing apparatus 1 includes a platen 10, a substrate table 20, a blade device 30, a blade holder 40, a dispenser 50, a transfer roller 60, and a moving mechanism 71, 72. The device frame 80 and the drying furnace 85.

The platen 10 is horizontally supported by the device frame 80, and can be moved in parallel in the X direction by the moving mechanism 71. This platen 10 has a holding surface 11 on which a flat plate-shaped intaglio 90 (gravure plate) is placed. The holding surface 11 is provided with a plurality of suction ports (not shown) in advance, and the intaglio 90 can be suction-held. Further, the method of fixing the intaglio 90 to the platen 10 is not particularly limited thereto. Incidentally, as the moving mechanism 71, a ball screw mechanism using a motor or the like can be exemplified. The "station 10" of the present embodiment is an example of the "base station" of the present invention. The "moving mechanism 71" of the present embodiment corresponds to an example of the "moving mechanism" of the present invention.

The intaglio plate 90 of the present embodiment is a flat plate-shaped intaglio plate, and a metal layer made of copper or the like is etched on the upper surface 91 to form a concave pattern 92. This concave pattern 92 is a pattern formed corresponding to the conductor layer 120 of the wiring substrate 100. The concave pattern 92 may be, for example, a stripe pattern in which a plurality of thin lines are arranged in parallel with each other, or may be a mesh shape in which first and second thin lines (not shown) extending in different directions intersect each other. (screen-like) pattern. In the case where the intaglio plate is in the form of a mesh (mesh shape), a geometric pattern obtained by repeating various graphic units (for example, a polygon such as a triangle or a quadrangle, a circle, an ellipse, a star, or the like) can be used as the concave pattern. Unit mesh is used. Further, in the example shown in Fig. 1, only the concave pattern 92 which is the intaglio 90 along the Y-axis direction is shown, but the concave pattern 92 is actually not only the Y-axis direction but various types. Extend in all directions. The "gravure plate 90" of the present embodiment is an example of the "recessed pattern" of the present invention. The "concave pattern" of the present embodiment corresponds to an example of the "concave pattern" of the present invention.

The substrate table 20 is horizontally supported by the device frame 80, and is movable in parallel in the X direction by the moving mechanism 72. This platen 10 has a holding surface 21 on which the substrate 110 of the object to be printed is placed. Similarly to the holding surface 11 of the platen 10 described above, the holding surface 21 is also provided with a plurality of suction ports that are preliminarily opened to hold and hold the substrate 110. Further, the method of fixing the base material 110 to the substrate stage 20 is not particularly limited thereto. Incidentally, as the moving mechanism 72, a ball screw mechanism or the like using a motor can be exemplified.

An adsorption device (not shown) is provided in the vicinity of the standby position of the substrate stage 20, and the substrate 110 placed on the substrate stage 20 is transferred to the drying furnace 85 by the adsorption device. Further, as the drying furnace 85, for example, IR (far Infrared) drying oven, hot air drying oven, etc. The printed pattern (conductive ink M) transferred onto the substrate 110 is heated and hardened by the drying furnace 85 to form the conductor layer 120 of the wiring substrate 100.

The doctor blade unit 30 is disposed opposite the intaglio plate 90 above the intaglio plate 90. The doctor device 30 is in sliding contact with the upper surface 91 of the intaglio 90 for filling the conductive ink M to the concave pattern 92 formed in the intaglio 90, scraping the residual conductive ink on the upper surface 91 of the intaglio 90. M. The "blade device 30" of the present embodiment is an example corresponding to the "scraper device" of the present invention.

The blade unit 30 has a blade body 31, a blade holder 32, an ink holding portion 33, a reinforcing plate 381, and a fixture 382 as shown in Figs. 3(a) and 3(b). The blade body 31 is slidably contactable with the upper surface 91 of the intaglio 90 at the front end portion 311, and supported by the blade holder 32 at the side of the base end portion 312. The "blade body 31" of the present embodiment corresponds to an example of the "blade body" of the present invention.

The blade holder 32 supports the blade body 31 from the base end portion 312 side of the blade body 31, having a first holder assembly 321 and a second holder assembly 322 opposite the first holder assembly 321 . A gap is formed between the first and second holder members 321, 322. The first and second support members 321 and 322 are disposed substantially parallel to each other, and the blade body 31 is inserted between the first and second holder members 321 and 322, and the blade body 31 is sandwiched from the front and the back. It becomes possible to support the blade body 31.

The first holder member 321 is in contact with the front surface of the blade body 31 (i.e., the surface on the direction of the direction of the blade device 30) to support the blade body 31. On the other hand, the second holder assembly 322 is the rear surface of the blade body 31 via the reinforcing plate 381 (that is, opposite to the direction of the direction of the blade device 30). The side face) is pressed toward the first holder member 321 to support the blade body 31. The "blade support tool 32" of the present embodiment is an example corresponding to the "blade support device" of the present invention.

The ink holding portion 33 is disposed in front of the blade body 31 in the direction in which the blade device 30 is moved, and is disposed at a constant interval from the blade body 31. When the scraping operation is performed by the doctor blade device 30, the ink holding portion 33 comes into contact with the conductive ink M before the blade body 31.

The ink holding portion 33 has a support portion 34, a movable portion 35, a support shaft 36, and a propulsion mechanism 37 as shown in Figs. 3(a) and 3(b) and 4D. The support portion 34 is a U-shaped bracket formed by the bottom wall 341 and the pair of side walls 342 and 342. The bottom wall 341 is fixed to the front end of the first holder assembly 321 . The bottom wall 341 has a width larger than the movable portion 35, and the side walls 342, 342 are erected at both ends thereof. Penetration ports 342a, 342a through which the fulcrum shaft 36 can pass are formed in the side walls 342, 342, respectively. The fulcrum 36 is fixed across and through the aforementioned penetration openings 342a, 342a. In addition, the bottom wall 341 may be omitted, and the side walls 342, 342 may be directly fixed to the front end of the first holder assembly 321. In addition, the first holder member 321 and the support portion 34 may be integrally formed.

The movable portion 35 is a plate-like assembly having a width corresponding to the blade body 31. The movable portion 35 has a front end portion 351 which is slidably contactable with the upper surface 91 of the intaglio plate 90, and a penetration opening 352 formed at an end portion opposite to the front end portion 351. When the conductive ink M is present on the intaglio 90, the front end portion 351 can be in contact with this conductive ink M. The penetration opening 352 allows the fulcrum 36 to penetrate, and the fulcrum 36 is penetrated by the penetration opening 352 to keep the movable portion 35 rotatable.

The thickness of the front end 351 of the movable portion 35 is 1 mm to 10 mm. good. Further, the thickness of the distal end portion 351 of the movable portion 35 is preferably 0.5 times or more and twice or less the distance A to be described later.

As the propulsion mechanism 37, for example, a torsion coil spring 371 can be used. The torsion coil spring 371 has a coil portion 372 and torque arms 373, 374. In the present embodiment, the left and right side walls 342 and 342 are attached, and torsion coil springs 371 and 371 are provided one by one on the inner sides of the side walls 342 and 342.

As will be described below, the torsion coil springs 371, 371 are disposed between the side walls 342, 342 and the movable portion 35. That is, the support shaft 36 penetrates the coil portions 372 and 372, and the one side torque arms 373 and 374 are locked to the side walls 342 and 342, and the other side torque arms 373 and 374 are locked to the movable portion 35 side.

As a result, the movable portion 35 (that is, the distal end portion 351) is rotated toward the blade body 31, and the movable portion 35 is biased toward the movable portion 35 by the torsion coil springs 371 and 371. The propulsion of the direction.

On the other hand, when the movable portion 35 rotates in the direction away from the blade body 31, the torsion coil springs 371 and 371 apply a thrust force to move the movable portion 35 toward the blade body 31 by the torsion coil springs 371 and 371. Further, a restriction pin (not shown) that restricts the movable portion 35 from rotating in the direction away from the blade body 31 may be provided to the side walls 342 and 342.

The doctor blade device 30 of the present embodiment is disposed such that the front surface of the blade body is inclined to face the intaglio plate 90, and is disposed opposite to the intaglio plate 90 above the intaglio plate 90. When the doctor blade device 30 is brought into contact with the intaglio plate 90 in this posture, a pressing force (i.e., a pressing force) in a direction approaching the blade body 31 is applied to the ink holding portion 33. If the scraping force is greater than the propulsive force of the torsion coil springs 371, 371 (specifically, in the movable portion 35 centered on the support shaft 36, the rotational momentum from the scraping force is greater than that from the propulsive force The rotational momentum of the movable portion 35 is rotated about the support shaft 36. Then, the front end portion 351 of the movable portion 35 is in a state of satisfying the following formula (2), and contacts the vicinity of the front end portion 311 of the blade body 31: 1 mm ≦ A ≦ 5 mm (2)

In the above formula (2), when A applies a pressing force to the ink holding portion 33 in the direction toward the blade body 31, the front end portion 311 of the blade body 31 and the front end of the movable portion 35 in the extending direction of the blade body 31. The portion 351 is in contact with the distance between the contact points P of the blade body 31.

When the distance between the tip end portion 311 and the contact point P is 1 mm or more as in the above formula (2), the conductive ink M enters the front side of the blade body 31 through the gap between the movable portion 35 and the intaglio plate 90, by This blade body 31 performs a scraping action. On the other hand, when the distance between the distal end portion 311 and the contact point P is 5 mm or less as in the above formula (2), the pressure of the conductive ink M can be received and blocked by the distal end portion 351 of the movable portion 35. Moreover, in this case, since the conductive ink M adheres to the movable portion 35, when the blade body 31 is separated from the movable portion 35, the movable portion 35 can be provided with a function of causing the conductive ink M to move away from the blade body 31. Further, in a state where the distal end portion 351 of the movable portion 35 is in contact with the blade body 31, and an end portion of the distal end portion 351 on the side opposite to the blade body 31, in the side sectional view, the A state in which the surface of the holder member 321 which is opposite to the side opposite to the blade body 31 protrudes is preferable.

As described above, in the ink holding portion 33 of the present embodiment, the conductive ink M can be held by at least the distal end portion 351 of the movable portion 35 in a state where the wiping (the pressing force in the direction approaching the blade body 31) is released.

In the present embodiment, the vicinity of the front end portion 311 of the blade body 31 is It means that the distance from the front end portion 311 to the contact point P satisfies the above equation (2).

Further, in order to bring the distal end portion 351 of the movable portion 35 into contact with the distal end portion 311 of the blade body 31, the amount of projection of the movable portion 35 may be made larger than the amount of projection of the blade body 31. That is, in a state where the wiping is applied, since the movable portion 35 is in a posture inclined to the extending direction of the blade body 31, the amount of protrusion of the movable portion 35 can be made larger than the amount of projection of the blade body 31 in consideration of the inclination.

The width of the movable portion 35 of the present embodiment is first set to a width corresponding to the width of the blade body 31, and the front end portion 351 is brought into contact with the vicinity of the distal end portion 311 of the blade body 31, and is adjacent to the distal end portion 311 of the blade body 31. The front end portion 351 covers the front side of the blade body 31.

On the other hand, when the doctor blade 30 is separated from the intaglio plate 90, the pressing of the ink holding portion 33 against the intaglio plate 90 is released, and the tip end portion 351 of the movable portion 35 is separated from the blade body by the thrust force of the torsion coil springs 371, 371. 31.

The "ink holding portion 33" of the present embodiment is an example of the "ink holding portion" of the present invention, and the "support portion 34" of the present embodiment corresponds to an example of the "support portion" of the present invention; The "movable portion 35" of the present embodiment is an example of the "movable portion" of the present invention. The "front end portion 351" of the present embodiment corresponds to the "front end portion" of the present invention; The "support shaft 36" of the embodiment corresponds to an example of the "support shaft" of the present invention. The "propulsion mechanism 37" of the present embodiment corresponds to an example of the "propulsion tool" of the present invention.

The reinforcing plate 381 is disposed in a direction in which the blade body 31 extends, and is partially protruded from the front end of the second holder assembly 322, and has a function of reinforcing the support of the second holder member 322 to the blade body 31 so as to be applied to the intaglio 90. scratch The function of uniform pressure, etc.

The first and second support members 321 and 322 are coupled by a fixture 382. The fixture 382 is for preventing the blade body 31 from coming off the blade holder 32, and is formed by locking bolts which are arranged at substantially equal intervals along the width direction of the blade body 31. The blade body 31 can be fixed to the blade holder 32 by tightening the locking bolt as the fixture 382.

Returning to Fig. 1 and Fig. 2, the doctor table 40 is a stand for allowing the blade unit 30 to be detached and mounted. The blade holder 40 has a mechanism for moving up and down, and is accessible to the intaglio 90 held by the platen 10 or go away. As a mechanism for moving the blade holder 40 up and down, a rack and pinion gear mechanism such as a rack using a motor or the like can be exemplified.

When the blade holder 40 is lowered to bring the tip end portion 311 of the blade body 31 into contact with the upper surface 91 of the intaglio 90, the movement mechanism 71 moves the platen 10 in the -X direction, and the blade body 31 is used. The conductive ink M on the intaglio 90 is applied and scraped.

Further, in the present embodiment, the platen 10 is horizontally moved by the moving mechanism 71. However, if the blade holder 40 and the platen 10 are relatively movable, the present invention is not particularly limited to the above. For example, although not specifically illustrated, the blade holder can be horizontally moved by the moving mechanism, and a moving mechanism can be provided on each of the blade holder and the plate. The blade holder and the plate are driven by the synchronous driving of the moving mechanisms. The station moves relatively.

The dispenser 50 is a device for supplying the conductive ink M to the intaglio 90, and is provided in the vicinity of the blade device 30. This dispenser 50 is movable in the Z direction together with the doctor device 30. In addition, in this embodiment, the doctor apparatus 30 and The dispenser 50 is actuated by the synchronous drive, but can also be operated independently. Further, in this case, the blade unit 30 may be actuated after the dispenser 50 is actuated. The "dispenser 50" of the present embodiment corresponds to an example of the "supply device" of the present invention.

The transfer roller 60 includes a housing 61 and a housing 62. The housing 61 is supported to be rotatable about its central axis. The outer casing 62 is made of, for example, polyoxyethylene rubber, and is wound around the outer circumference of the casing 61 via an adhesive layer (not shown). The transfer roller 60 is rotatable by a motor or the like (not shown). Further, the transfer roller 60 can be moved up and down in the Z direction by, for example, a rack and a pinion linkage mechanism (not shown). In this case, when the transfer roller 60 is lowered, the substrate 110 placed on the platen 10 or placed on the substrate stage 20 can be contacted. The "transfer roller 60" of the present embodiment corresponds to an example of the "transfer body" of the present invention.

Next, a method of manufacturing the wiring substrate 100 using the printing apparatus 1 will be described. Fig. 5 is a flowchart showing a method of manufacturing a wiring board according to an embodiment of the present invention.

The method of manufacturing the wiring board 100 of the present embodiment includes a printing process S10 and a drying process S60 as shown in FIG. In the following description, first, the printing process S10 will be described in detail with reference to FIGS. 5 to 15 . The "printing process S10" of the present embodiment corresponds to an example of the "printing process" of the present invention. The "drying process S60" of the present embodiment corresponds to an example of the "drying process" of the present invention.

Fig. 6 is a view showing a method of manufacturing a wiring board according to an embodiment of the present invention, and is a flowchart showing details of a filling process; Fig. 7 (a), Fig. 7 (b), Fig. 8, and Figure 9 (a) and Figure 9 (b) show the steps of Figure 6. FIG. 10 is a partial enlarged view of a portion X of FIG. 9(b); FIGS. 11(a), 11(b) and 12 are wirings showing an embodiment of the present invention. A diagram of a method of manufacturing a substrate is a cross-sectional view for explaining a receiving process; and FIGS. 13(a), 13(b), 14(a), and 14(b) are diagrams showing the present invention. A diagram for explaining a method of manufacturing a wiring board according to an embodiment is a cross-sectional view for explaining a transfer process, and FIG. 15 is a partial enlarged view of a portion XV of FIG. 13(b).

As shown in FIG. 4, the printing process S10 of the present embodiment includes a preparation process S20, a filling process S30, a receiving process S40, and a transfer process S50. The "preparation process S20" of the present embodiment corresponds to an example of the "first process" of the present invention, and the "receiving process S40" of the present embodiment corresponds to an example of the "fourth process" of the present invention; The "transfer process S50" in the present embodiment corresponds to an example of the "fifth process" of the present invention.

In the preparation process S20, the doctor apparatus 30 of this embodiment is prepared. Next, in the filling process S30, as shown in Fig. 7(a), first, the blade device 30 that is standing by at a predetermined standby position is lowered (moved in the -Z direction) (step S31 in Fig. 6). The front end portion 311 of the blade body 31 is close to the intaglio 90.

At this time, once the doctor blade device 30 is disposed in a posture in which the conductive ink M on the intaglio 90 is scraped, the blade body 31 is inclined to the upper surface 91 of the intaglio plate 90 to a predetermined angle.

In the present embodiment, when the blade device 30 is brought close to the intaglio plate 90 in the above-described posture, first, the ink holding portion 33 located in front of the blade body 31 comes into contact with the intaglio plate 90, and the ink holding portion 33 is subjected to the wiping. Then, once the scraping force becomes larger than the propulsive force of the propulsion mechanism 37, the movable portion 35 starts to rotate around the support shaft 36. Then, the movable portion 35 is pressed by the intaglio 90 to approach the blade body 31. The front end portion 351 of the movable portion 35 is in contact with the vicinity of the front end portion 311 of the blade body 31.

Then, as shown in Fig. 7(b), the conductive ink M is supplied onto the intaglio 90 from a dispenser which is not particularly illustrated. Then, the platen 10 is moved in the -X direction in the figure in a state where the blade device 30 has been brought into contact with the intaglio plate 90 (step S32 of Fig. 6). Further, the supply of the conductive ink may be performed before the lowering of the doctor blade device (i.e., step S31).

In the present embodiment, as shown in Fig. 8, the distal end portion 351 of the movable portion 35 is brought into contact with the distal end portion 311 of the blade body 31, and the distal end portion 351 is slid on the intaglio plate 90 (step S33 in Fig. 6). Here, the scraping operation is performed by the doctor blade 30 on the conductive ink M between the tip end portion 351 and the intaglio plate 90 that slide each other. Specifically, the front end portion 311 of the blade body 31 slides on the intaglio 90, and the conductive ink M applied to the upper surface 91 of the intaglio 90 is scraped off, and this conductive ink M is filled in the concave pattern 92. The conductive ink M which has been scraped off by the blade body 31 on the intaglio 90 is stored in front of this blade body 31. In addition, "step S33" in the present embodiment corresponds to an example of the "second process" of the present invention.

In this embodiment, in the vicinity of the distal end portion 311 of the blade body 31, the front end portion 351 of the movable portion 35 covers the front side of the blade body 31, and the stored conductive ink M adheres to the movable portion 35 (especially The front end portion 351) is stored in front of the movable portion 35.

Then, as shown in Fig. 9(a), when the filling of the conductive ink M for all the concave patterns 92 is completed, the platen 10 is stopped (step S34 of Fig. 6). Then, as shown in Fig. 9(b), the blade device 30 is raised (moved in the +Z direction) The blade unit 30 is moved away from the intaglio 90 (step S35 of Fig. 6). In addition, "step S35" in the present embodiment corresponds to an example of the "third process" of the present invention.

When the doctor blade device 30 is raised, as shown in Fig. 10, the conductive ink M is suspended from the front end of the blade device 30 by the weight of the conductive ink M. In the present embodiment, the conductive ink M that has been stored is attached to the movable portion 35, and the conductive ink M (hereinafter referred to as "ice") having a icy shape is suspended from the distal end portion 351 of the movable portion 35. In this embodiment, the ink holding portion 33 (specifically, the tip end portion 351 of the movable portion 35) holds the conductive ink in a state where the wiping (the pressing force in the direction approaching the blade body 31) is released. M.

Further, when the doctor blade device 30 is raised, the tip end portion 351 of the movable portion 35 is separated from the blade body 31 by the urging force of the pushing mechanism 37 by the previous pressing of the ink holding portion 33 against the intaglio 90. As a result, as the front end portion 351 leaves the blade body 31, most of the conductive ink M will leave the blade body 31.

Once the filling of the conductive ink M for the concave pattern 92 of the intaglio 90 is completed, the process proceeds to the receiving process S40. In the receiving process S40, first, as shown in Fig. 11(a), the platen 10 is moved in the -X direction by the moving mechanism 71, and is disposed below the transfer roller 60. Then, the transfer roller 60 is moved downward from the standby position, and this transfer roller 60 is pressed against the intaglio 90 placed on the platen 10. Then, as shown in Fig. 11(b), the transfer roller 60 is rotated in the right-handed (clockwise direction), and the platen 10 is moved in the -X direction by the moving mechanism 71. Thereby, the transfer roller 60 rolls on the intaglio 90, and the conductive ink previously filled in the concave pattern 92 of this intaglio 90 M is received by the outer casing 62 of the transfer roller 60, and a printed pattern corresponding to the conductor layer 120 is held on this outer casing 62. Then, as shown in Fig. 12, the transfer roller 60 is raised to be retracted from the standby position, and the platen 10 is moved from the lower side of the transfer roller 60 in the X direction to be retracted from the standby position. The "printing pattern corresponding to the conductor layer 120" in the present embodiment corresponds to an example of the "printing pattern" of the present invention.

Once the conductive ink M previously filled in the concave pattern 92 of the intaglio 90 is received by the transfer roller 60, it proceeds to the transfer process S50. In the transfer process S50, first, as shown in Fig. 13(a), the substrate stage 20 is moved in the +X direction by the moving mechanism 72, and is disposed below the transfer roller 60. Then, as shown in Fig. 13(b), the transfer roller 60 is moved downward from the standby position, and the transfer roller 60 is pressed against the substrate 110 placed on the substrate stage 20. Then, as shown in Fig. 14(a), the substrate roller 20 is moved in the -X direction by the moving mechanism 72 while rotating the transfer roller in the right-handed (clockwise direction). Thereby, the transfer roller 60 rolls on the substrate 110, and the printing pattern corresponding to the conductor layer 120 previously held on the outer casing 62 of the transfer roller 60 is transferred to the substrate 110. Then, as shown in Fig. 14(b), the transfer roller 60 is raised to be retracted from the standby position, and the substrate stage 20 is moved from the lower side of the transfer roller 60 in the -X direction to escape from standby. position.

Once the printing process S10 is complete, the process moves to the drying process S60. In the drying process S60, the printing pattern is heated and dried using a drying oven 85 (refer to FIG. 1), and the conductor layer 120 is formed on the substrate 110. Thereby, the wiring substrate 100 can be obtained.

Further, the printing apparatus 1 of the present embodiment is used when a plurality of wiring boards 100 are continuously manufactured, and is transferred to the transfer process S50 (specifically In other words, after the standby to the standby position of the platen 10 is completed, the filling process S30 for manufacturing the next wiring substrate 100 is performed again (please refer to FIG. 13(a), FIG. 13(b), and FIG. 14 (refer to FIG. 13(a), FIG. 13(b), and FIG. a) and Figure 14 (b)). Therefore, the doctor apparatus 30 is lowered again to bring the doctor apparatus 30 into contact with the intaglio plate 90.

In the second and subsequent filling processes, the icy ice hangs from the blade device in the standby state (please refer to Fig. 13(a)). In the past, since the icicle was suspended from the front end of the blade body, once the blade body was pressed again into the intaglio plate, the icy ice would collapse and be pressed on the intaglio to smudge, and the conductive ink M would return to the rear of the blade body. There is a problem of so-called oozing.

On the other hand, in the present embodiment, most of the conductive ink M adheres to the movable portion 35, and the icy ice hangs from the front end portion 351 of the movable portion 35. Further, in the standby blade device 30 (that is, the state in which the blade is not applied), the tip end portion 351 is positioned away from the blade body 31 by the propulsive force of the propulsion mechanism 37. Thereby, as shown in Fig. 15, when the squeegee device 30 is brought into contact with the intaglio plate 90, even if the icy ice drooping from the front end portion 351 is broken and pressed on the intaglio plate to smudge, it is suppressed from entering and leaving. The back of the blade body 31 disposed in the ink holding portion 33 (specifically, the front end portion 351). As a result, occurrence of printing defects caused by bleeding of the conductive ink M is suppressed.

The doctor blade device 30, the printing device 1, the printing method of the conductive ink M, and the method of the wiring substrate 100 of the present embodiment achieve the following effects.

In the flat intaglio plate, in order to transfer the conductive ink filled in the intaglio plate to the object to be transferred after the excess amount of the conductive ink is scraped by the doctor blade, the doctor blade is separated from the intaglio plate. At this time, if any of the scraped conductive ink remains on the intaglio plate, the conductive ink remaining on the intaglio plate in the subsequent process Water is unexpectedly transferred to the object to be transferred, which causes a printing failure. Therefore, it is necessary to keep the scraped conductive ink in the doctor apparatus so that it does not remain on the intaglio plate.

However, in the operation of filling the conductive ink into the intaglio, if the conductive ink is held as it is in the blade body in contact with the conductive ink, the conductive ink will hang down from the front end of the blade body. . Therefore, when the blade body is again pressed against the intaglio plate, there is a problem that the icy ink dripping from the front end of the blade is also pressed and smudged, and is returned to the rear of the blade (so-called oozing occurs). There is a flaw in printing.

On the other hand, in the doctor blade device 30 of the present embodiment, the function of holding the conductive ink M is separated from the blade body 31, and the conductive ink M is kept in a state of being separated from the blade body 31 (in the present embodiment, The ink holding portion 33 in the state in which the pressure has been released) suppresses the occurrence of the above-described printing failure. In other words, in the present embodiment, when the pressing force in the direction toward the blade body 31 is applied to the ink holding portion 33 (that is, the pressing force is applied), the ink holding portion 33 is provided in the vicinity of the front end portion 311 of the blade body 31. The front end portion 351 covers the front side of the blade body 31, and the conductive ink M is attached to the front end portion 351. Then, once the pressing force is released, the front end portion 351 is separated from the blade body 31 by the pushing force that urges the front end portion 351 in a direction away from the blade body 31.

At this time, since the conductive ink M is separated from the blade body 31 as the distal end portion 351 is separated from the blade body 31, it is possible to suppress the conductive ink M from hanging down from the front end portion 311 of the blade body 31. Thereby, occurrence of printing defects due to bleeding of the conductive ink M can be suppressed.

Further, in the present embodiment, the distal end portion 351 of the movable portion 35 is When the thickness is 1 mm to 10 mm, it is possible to further suppress the occurrence of printing defects caused by the bleeding of the conductive ink M. In other words, when the thickness of the tip end portion 351 of the movable portion 35 is less than 1 mm, the conductive ink M cannot be sufficiently held by the distal end portion 351, and it is difficult to sufficiently obtain the occurrence of printing failure due to bleeding of the conductive ink M. Inhibitory effect. On the other hand, if the thickness of the distal end portion 351 of the movable portion 35 exceeds 10 mm, the region where the conductive ink is stored becomes excessively large, and the conductive ink is not sufficiently stored in front of the blade device. When the doctor blade device is raised in this state, the conductive ink hangs down on the tip end side and the blade body side, respectively, and it is difficult to sufficiently obtain the effect of suppressing the occurrence of printing defects caused by the bleeding of the conductive ink. By adjusting the size of the surface on which the ink is held at the distal end portion 351 of the movable portion 35, it is possible to suppress the occurrence of printing failure due to bleeding of the conductive ink M. In addition, when the thickness of the distal end portion 351 of the movable portion 35 is 0.5 times or more and twice or less the distance A, the occurrence of printing failure due to bleeding of the conductive ink M can be further suppressed by the same action as described above. Further, in a state in which the distal end portion 351 of the movable portion 35 is in contact with the blade body 31, the side portion of the distal end portion 351 on the side opposite to the blade body 31 is opposite to the first support member. When the surface of the module 321 which is opposite to the side opposite to the side of the blade body 31 is further protruded, the occurrence of printing failure due to bleeding of the conductive ink M can be further suppressed by the same action as described above.

The above-described embodiments are described in order to facilitate the understanding of the present invention, and are not intended to limit the present invention. Therefore, the respective elements of the above-described embodiments are disclosed, and all design changes, equivalents, and the like belonging to the technical scope of the present invention are also included.

Figure 16 is a cross-sectional view showing an embodiment of the present invention A modified example of the scraper device.

For example, as shown in Fig. 16, the ink holding portion 33 may be a plate-shaped elastic member 39. The elastic member 39 is disposed at a certain interval from the blade body 31, and has a fixed end portion 391 supported and fixed to the blade holder 32 (specifically, the front end of the first holder member 321) as A free end 392 of the end opposite the fixed end 391.

In this example, once the pressing force is applied to the elastic member 39 in the direction approaching the blade body 31, the elastic member 39 is deformed by this pressing force, and the free end portion 392 contacts the front end portion 311 of the blade body 31. At this time, an elastic force corresponding to the deformation that has occurred in the elastic member 39 is generated. Then, once the pressing force is released, the free end portion 392 is advanced in the direction away from the blade body 31 due to the tendency of the elastic member 39 to return to the original state by the elastic force. Thereby, occurrence of printing defects due to bleeding of the conductive ink M is suppressed.

The "elastic component 39" of the present embodiment is an example of the "elastic component" of the present invention; the "fixed end portion 391" of the present example corresponds to the "first end portion" of the present invention; The "free end portion 392" of this example corresponds to an example of the "second end portion" of the present invention.

Further, in addition to the above examples, a coil spring may be provided between the blade body and the movable portion as the propulsion mechanism 37. Alternatively, the blade body and the movable portion may be used as a propelling mechanism 37 by arranging magnets facing the same pole.

Further, in the present embodiment, the transfer roller 60 is used to receive the conductive ink M from the intaglio 90 to the transfer roller 60 (that is, the receiving process S40), and the conductive ink M is transferred from the received transfer ink. Roller 60 is transferred to substrate 110 (that is, the transfer process S50), but it is not particularly limited to the above. For example, the conductive ink can also be directly transferred from the intaglio plate to the substrate.

Further, the printing apparatus 1 of the present embodiment has one blade device 30, but is not particularly limited thereto, and may have two blade devices. This case is not particularly illustrated, and it is also possible to use one blade device as a blade device for coating a concave pattern in which a conductive ink is filled in a gravure, and another blade device as a conductive material for scraping remaining on the upper surface of the intaglio plate. The scraper device for scraping ink is used. The present invention can be applied to any of the doctor blade device for coating and the blade device for scraping.

30‧‧‧Scraper device

31‧‧‧ blade body

311‧‧‧ front end

312‧‧‧ base end

32‧‧‧blade support

321‧‧‧First support assembly

322‧‧‧Second support assembly

33‧‧‧Ink retention department

34‧‧‧Support Department

341‧‧‧ bottom wall

342‧‧‧ side wall

35‧‧‧movable department

351‧‧‧ front end

352‧‧‧ penetration

36‧‧‧ fulcrum

37‧‧‧Promoting agencies

381‧‧‧ Strengthening board

382‧‧‧ Fixtures

P‧‧‧ touch points

Claims (9)

A doctor apparatus for sliding on a flat plate-shaped intaglio plate includes: a blade body; and an ink holding portion provided in front of the blade body in a sliding direction of the blade device; wherein the ink holding portion has a front end portion And when a pressing force in a direction approaching the blade body is applied to the ink holding portion, contacting a vicinity of a front end of the blade body to cover a front side of the blade body; and a pushing tool, when the pressing force is released, a pushing force that advances the front end portion in a direction away from the doctor body to move the front end portion away from the blade body; the front end portion is in contact with the conductive ink present on the intaglio plate; and the ink holding portion is at the pressing force In the released state, the conductive ink is held by at least the front end portion. The scraper device according to claim 1, which is a scraper device satisfying the following formula (1): 1 mm ≦ A ≦ 5 mm (1) wherein in the above formula (1), A is the above-mentioned blade body a distance between the front end and a contact point of the front end portion contacting the blade body. The blade device of claim 1, further comprising: a blade holder supporting the blade body. The doctor blade device according to claim 3, wherein the ink retaining portion further includes: a support portion supported by the blade holder; the movable portion including the front end portion; and a support shaft rotatably connecting the above The support portion and the movable portion; wherein the pushing tool advances the movable portion in a direction away from the blade body when the pressing force is released. The blade device according to claim 3, wherein the ink retaining portion is a plate-shaped elastic member having a first end portion supported by the blade holder and a second end portion constituting the front end portion; The elastic member advances the distal end portion in a direction away from the blade body by an elastic force of the elastic member when the pressing force is released. A printing apparatus comprising: the doctor apparatus according to any one of claims 1 to 5; a base supporting the intaglio; a supply device for supplying the conductive ink to the intaglio; and a moving mechanism to cause the above The base moves relative to the above-described scraper device. A printing method for printing a conductive ink using a flat plate intaglio, comprising: a first process, preparing a doctor blade device according to any one of claims 1 to 5; and a second process for making the doctor blade The device slides relative to the intaglio plate; and a third process of raising the blade device away from the intaglio; The second process includes: applying the pressing force to the ink holding portion such that the front end portion contacts the vicinity of the front end of the blade body, and the front end portion covers the front side of the blade body; and the third process includes: releasing the above The front end portion is moved away from the blade body by the pushing force by the pressing force. The printing method according to claim 7, further comprising: a fourth process, after the third process, receiving the conductive ink from the intaglio plate on the transfer body; and the fifth process, the conductivity is The ink is transferred from the transfer body to the substrate. A method of manufacturing a wiring substrate, comprising: a printing process for forming a printed pattern on a substrate by a printing method according to claim 8; and a drying process for drying the printed pattern.