KR20220120476A - Gravure plate, gravure printing press and method for manufacturing multilayer type electronic component - Google Patents

Abstract

Provided are a gravure plate, a gravure printer, and a method for manufacturing a laminated electronic component, wherein it is possible to further improve the uniformity of paste flowing in a concave portion. The gravure plate (2) is provided with a concave portion (13) on an outer circumferential surface thereof, which holds paste (12) transferred to a transfer sheet (3). The concave portion (13) includes: two side surfaces (131) facing each other and extending in the circumferential direction of the gravure plate (2); and one longitudinal embankment (15) in which mutual connection portions (151) are alternately convex on one side and the other in the axial direction (Y), wherein a first vertical embankment (15a) provided inside the concave portion (13) and extending at an angle to one side in the axial direction (Y) with respect to the circumferential direction and a second vertical bank (15b) connected to the end of the first vertical embankment (15a) and extending inclinedly in the other side of the axial direction with respect to the circumferential direction are arranged alternately in the circumferential direction. The vertical embankment (15) is adjacent to the side surface (131) on both sides in the axial direction (Y), and is divided into a plurality of cells (171) communicating with each other between the vertical embankment (15) and the side surfaces (131).

Description

Gravure plate, gravure printing machine and manufacturing method of laminated electronic components

The present invention relates to a method for manufacturing a gravure plate, a gravure printing machine, and a multilayer electronic component.

When manufacturing a multilayer electronic component such as a multilayer ceramic capacitor, for example, gravure printing in which a conductive paste serving as an internal electrode is transferred onto a transfer target sheet such as a ceramic green sheet is widely used. In a gravure printing machine for performing gravure printing, the transfer-bearing sheet is sandwiched between the cylindrical gravure plate in which the concave portion of the transfer pattern shape is formed on the outer peripheral surface and the gravure plate, and the transferred sheet is moved to the gravure plate side. It includes a pressure drum to pressurize.

When the gravure plate rotates, the concave portion to which the paste is supplied from the paste supply unit from below rises gradually, and the paste in the concave portion is transferred to the transfer sheet at the position where the transfer target sheet is sandwiched.

At the time of transfer, the inside of the concave portion is in a state in which the horizontal position is higher in the rotational direction, that is, the front side in the transfer direction than the rear side. For this reason, the paste held in the concave portion is biased backward in the transfer direction. When the paste is transferred to the transfer target sheet in this state, the transfer amount of the paste on the front side in the transfer direction is smaller than that on the back side, and there is a possibility that the transferred paste may be scratched.

For this reason, conventionally, vertical embankments extending in the transfer direction of the transfer target sheet and transverse embankments extending in a direction orthogonal to the transfer direction are provided inside the concave portion to partition the inside of the concave portion into a plurality of cells, so that the paste is biased backward. There are techniques to prevent this. In addition, the transverse embankment becomes a transfer starting point of the paste to the transfer target sheet, respectively, and the occurrence of scratches in the transferred paste is reduced.

However, if the inside of the recess is completely divided into a plurality of cells independent of each other, if the amount of paste in the recess is non-uniform, the thickness of the transferred paste may become non-uniform.

Therefore, conventionally, there exists a technique of providing a gap in a transverse embankment to partially communicate cells adjacent to each other in the transfer direction (for example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 2007-320316

According to the prior art, since the cells are interlocked, the flow of the paste in the recess is enabled.

An object of the present invention is to provide a method for manufacturing a gravure plate, a gravure printer, and a multilayer electronic component capable of further improving the uniformity of the paste flowing in the recess.

In order to solve the above problems, a first aspect of the present invention is a gravure plate having a cylindrical or cylindrical shape, rotatable about an axis, and provided with a concave portion on an outer circumferential surface for holding a paste transferred to a transfer target sheet, wherein the The concave portion includes two opposing side surfaces extending in the circumferential direction of the gravure plate, a first vertical embankment extending inclined in one of the axial directions with respect to the circumferential direction of the gravure plate, and an end of the first vertical embankment ( A second vertical embankment connected to the perimeter and extending at an angle to the other side of the axial direction with respect to the circumferential direction is alternately disposed in the circumferential direction, and the connecting portion of the first vertical embankment and the second vertical embankment is the It includes one longitudinal embankment alternately convex to one side and the other side in the axial direction, wherein both sides of the longitudinal embankment are adjacent to the side surface, and the vertical embankment and the side surface are divided into a plurality of cells communicating with each other Provided with a gravure plate.

In addition, a second aspect of the present invention is a gravure plate having a cylindrical or cylindrical shape, rotatable about an axis, and provided with a concave portion on an outer circumferential surface for holding a paste transferred to a transfer target sheet, wherein the concave portion is the gravure plate. two opposite side surfaces extending in the circumferential direction of the gravure plate, a first vertical embankment extending at an angle to one of the axial directions with respect to the circumferential direction of the gravure plate, and a first vertical embankment connected to the end of the first vertical embankment in the circumferential direction Second vertical embankments extending at an angle to the other side of the axial direction with respect to are alternately arranged in the circumferential direction, and the connecting portions of the first vertical embankments and the second vertical embankments are alternately disposed in one side and the other side in the axial direction. a convex vertical embankment, wherein both sides of the vertical embankment are adjacent to the side surface, and a gravure plate divided into a plurality of cells communicating with each other between the vertical embankment and the side surface, and the paste is stored It provides a gravure printing machine having a pressure cylinder for sandwiching the transfer target sheet between the paste supply unit and the gravure plate.

In addition, a third aspect of the present invention is a gravure plate having a cylindrical or cylindrical shape, rotatable about an axis, and provided with a concave portion on an outer circumferential surface for holding a paste transferred to a transfer target sheet, wherein the concave portion is the gravure plate. two opposite side surfaces extending in the circumferential direction of the gravure plate, a first vertical embankment extending at an angle to one of the axial directions with respect to the circumferential direction of the gravure plate, and a first vertical embankment connected to the end of the first vertical embankment in the circumferential direction Second vertical embankments extending at an angle to the other side of the axial direction with respect to are alternately arranged in the circumferential direction, and the connecting portions of the first vertical embankments and the second vertical embankments are alternately disposed in one side and the other side in the axial direction. a convex vertical embankment, wherein both sides of the vertical embankment are adjacent to the side surface, and a gravure plate divided into a plurality of cells communicating with each other between the vertical embankment and the side surface, and the paste is stored The transfer sheet is inserted between the rotating gravure plate and the pressure cylinder using a gravure printing machine having a pressure cylinder for sandwiching the transfer sheet between the paste supply unit and the gravure plate, and by pressing the transfer sheet toward the gravure plate side to transfer the paste held in the recess to the transfer sheet, and laminating the transfer sheet to which the paste has been transferred to prepare a laminate, and the laminate To provide a method for manufacturing a multilayer electronic component for forming an external electrode on the outer surface of the

According to the present invention, it is possible to provide a method for manufacturing a gravure plate, a gravure printer, and a multilayer electronic component capable of further improving the uniformity of the paste flowing in the concave portion.

1 is a schematic diagram showing a gravure printer 1 .
2 is a cross-sectional view of the ceramic green sheet 3 onto which the conductive paste 12 is transferred using the gravure printer 1 .
3 is a perspective view of the gravure plate 2 .
4 is an enlarged view of the concave portion 13 .
5 is a table showing the experimental results of the occurrence of print scratches in Comparative Examples and Examples.

Hereinafter, a multilayer ceramic capacitor as an example of a multilayer electronic component using the gravure printing machine 1 according to the first embodiment of the present invention, the gravure plate 2 included in the gravure printing machine 1, and the gravure printing machine 1 A manufacturing method will be described. 1 is a schematic diagram showing a gravure printer 1 . 2 is a cross-sectional view of the ceramic green sheet 3 onto which the conductive paste 12 is transferred using the gravure printer 1 .

The gravure printer 1 is a device for transferring the conductive paste 12 serving as the internal electrode of the multilayer ceramic capacitor onto the ceramic green sheet 3 serving as a transfer target sheet.

The gravure printing machine 1 includes a cylindrical gravure plate 2 in which a concave portion 13 in the shape of a transfer pattern of the conductive paste 12 is formed, a paste supply part 11 in which the conductive paste 12 is stored, and a gravure plate (2) includes a pressure cylinder (4) holding the ceramic green sheet (3) therebetween, and a doctor blade (14) disposed on the side of the gravure plate (2). Hereinafter, the side in which the paste supply part 11 is arrange|positioned with respect to the gravure board 2 is made downward. The pressure cylinder 4 is disposed on the gravure plate 2 . The gravure plate 2 and the pressure cylinder 4 rotate in the direction of the arrow 5 and the arrow 6, respectively, whereby the ceramic green sheet 3 is conveyed in the direction of the arrow 7 .

(Ceramic Green Sheet (3))

In the ceramic green sheet 3 shown in FIG. 2 , a ceramic slurry 8 containing ceramic powder, a binder, and a solvent is formed into a sheet shape on a carrier film 10 using a die coater, a gravure coater, a micro gravure coater, etc. It is a strip|belt-shaped to-be-transferred sheet.

(gravure version (2))

3 is a perspective view of the gravure plate 2 . The gravure plate 2 is rotatable about an axis 2A extending horizontally, and has a cylindrical shape or a cylindrical member. A plurality of concave portions 13 corresponding to the shape of the transfer pattern transferred to the ceramic green sheet 3 are formed on the outer peripheral surface of the gravure plate 2 . Although only two concave portions 13 are shown in FIG. 3 , the concave portions 13 are at approximately equal intervals in the axial direction (Y) and the transfer direction (circumferential direction) (X) on the outer circumferential surface of the gravure plate 2 , respectively. arranged in order.

The gravure plate 2 of the embodiment is, for example, a gravure plate 2 for printing internal electrodes of a multilayer ceramic capacitor having a length of 0.2 mm x width 0.1 mm x thickness 0.125 mm. The width of the internal electrode is about 100 μm after firing and about 80 μm before firing.

In the embodiment, in the concave portion 13, the longitudinal direction of the concave portion 13 faces the transfer direction (circumferential direction) X of the gravure plate 2, and the short side direction of the concave portion 13 is the gravure plate ( It is arranged so as to face the axial direction Y parallel to the axis 2A of 2).

(recess (13))

4 is an enlarged view of one concave portion 13 . The concave portion 13 is formed by etching or engraving using an original photomask plate, and the plurality of concave portions 13 have the same shape as each other, and the axial direction (Y) and the transfer direction (circumferential direction) of the gravure plate 2 . In (X), it is formed aligned at regular intervals.

The concave portion 13 has an elongated rectangular shape, and the width in the axial direction is 50 µm to 80 µm, preferably 60 µm to 80 µm. One embankment structure 20 is provided in each recess 13 . On the other hand, the details of the embankment structure 20 will be described later.

(paste supply part 11)

Returning to FIG. 1 , the paste supply unit 11 is a storage tank for the conductive paste 12 disposed below the gravure plate 2 . The conductive paste 12 contains, for example, Ni powder having a particle diameter of 0.03 to 1 µm as a conductor material. Also, a resin is used as the binder. Furthermore, ceramic materials, dispersants, etc. for controlling the shrinkage during sintering are added. The conductive paste 12 is stored in the paste supply unit 11 , and the lower portion of the gravure plate 2 is immersed in the conductive paste 12 . Thereby, the conductive paste 12 is held in the concave portion 13 of the outer peripheral surface of the gravure plate 2 .

(Doctor Blade (14))

A doctor blade 14 is disposed on the side of the gravure plate 2 . The conductive paste 12 digs into the concave part 13 of the gravure plate 2 from the paste supply part 11 , and is transferred to the contact part with the ceramic green sheet 3 by rotation of the gravure plate 2 . In the meantime, the doctor blade 14 is pressed to the surface of the gravure plate 2, and the conductive paste 12 adhered to the surface other than the concave portion 13 of the gravure plate 2 by the doctor blade 14. is scratched off

(Pressure (4))

The pressure cylinder 4 is a cylindrical or columnar member which is disposed on the gravure plate 2 and rotates about a pressure axis 4A substantially parallel to the axis 2A. The outer peripheral surface of the pressing cylinder 4 is covered with an elastic member. The elastic member is made of a rubber member or resin material such as silicone rubber or urethane rubber, but is not limited thereto, and may be made of another elastic material.

The pressure cylinder 4 sandwiches the ceramic green sheet 3 between the gravure plate 2 and the ceramic green sheet 3 and presses the ceramic green sheet 3 toward the gravure plate 2 .

Here, the pressure cylinder 4 is elastically deformed because it is an elastic body, and the contact portion between the gravure plate 2 and the pressure cylinder 4 has a predetermined nip width (N). The conductive paste 12 held in the concave portion 13 of the gravure plate 2 is transferred to the ceramic green sheet 3 in this nip width N range. In the embodiment, the dimension L of the concave portion 13 of the gravure plate 2 in the longitudinal direction as the transfer direction (circumferential direction) X is smaller than the nip width N.

(Elevation structure (20))

Next, the embankment structure 20 provided in plurality in the concave portion 13 will be described in detail. 4 is an enlarged view of one concave portion 13 . On the other hand, the transfer direction (circumferential direction) X shown in Fig. 4 is opposite to the rotation direction indicated by the arrow 5 shown in Fig. 1 . The right end of the concave portion 13 in Fig. 4 is the transfer start end and the left end is the transfer end, and the contact position of the concave portion 13 with the ceramic green sheet 3 in the transfer process is It moves from the right end of FIG. 4 to the left end.

The embankment structure 20 includes one vertical embankment 15 extending in a zigzag shape in the transfer direction (circumferential direction) X, and a plurality of horizontal embankments 16 extending in the axial direction Y from the vertical embankment 15 . (16a, 16b)).

(Vertical Embankment (15))

The vertical embankment 15 is predetermined in one side of the axial direction (Y) with respect to the transfer direction (circumferential direction) (X) from the starting end side, which is one side of the transfer direction (circumferential direction) (X), of the outer peripheral surface toward the terminal end side on the other side. The first vertical embankment 15a extending at an angle θ and extending from the first connecting portion 151A of the first vertical embankment 15a in the axial direction (Y) with respect to the transfer direction (circumferential direction) (X) The second vertical embankments 15b extending inclined at a predetermined angle (-θ) to the other side of the are alternately arranged, and the connecting portions 151 (151A, 151B) of the first vertical embankments 15a and the second vertical embankments 15b. )) is a zigzag shape in which convex alternately to one side and the other in the axial direction (Y). 45 degrees or more and less than 75 degrees are preferable, and, as for (theta), 60 degrees is more preferable. On the other hand, the angle includes an error of about ±1 degree.

(side (131))

The concave portion 13 has a rectangular shape and includes a side surface 131 extending in the transfer direction (circumferential direction) X.

(Street Embankment (16))

The transverse embankment 16 has a plurality of first transverse embankments extending in the axial direction (Y) from the convex portion of the first connecting portion 151A convex to one side in the axial direction (Y) in the axial direction (Y) and , a plurality of second transverse embankments 16b extending in the axial direction Y from the convex portion of the second connecting portion 151B convex to the other side in the axial direction Y to the other side surface 131 side. .

(Side space (S2))

A side space S2 communicating in the transfer direction (circumferential direction) X is formed between the embankment structure 20 and the side surface 131 .

(Side side embankment (21))

In the vertical embankment 15 of the embankment structure 20 from the side surface 131, the side side transverse embankment 21 extending in the side space S2 toward the concave connection part 151 on the side surface 131 side is formed. is provided. The side space S2 is divided into a plurality of cells 171 by the side embankment 21 and the cross embankment 16 extending in the side space S2 .

(Interval (28))

And a gap 28 is provided between the side-side transverse embankment 21 extending from the side surface 131 to the embankment structure 20 and the connection part 151 .

(Interval (29))

In addition, a gap 29 is provided between the transverse embankment 16 extending from the embankment structure 20 to the side surface 131 and the side surface 131 .

That is, the embankment structure 20 and the side surface 131 are unconnected by the poles 28 and 29 .

(Transfer process of conductive paste 12)

Next, a process for transferring the conductive paste 12 to the ceramic green sheet 3 using the gravure printer 1 will be described.

The gravure plate 2 is rotated by a driving device (not shown). Then, as shown in FIG. 1 , the lower portion of the gravure plate 2 is immersed in the conductive paste 12 accommodated in the paste supply unit 11 , and a plurality of recesses 13 formed on the outer peripheral surface of the gravure plate 2 . The conductive paste 12 is held there.

The excess conductive paste 12 on the outer peripheral surface of the gravure plate 2 is scraped off when the gravure plate 2 rotates and passes through the doctor blade 14 .

The conductive paste 12 in the concave portion 13 is further moved to a contact position with the ceramic green sheet 3 by the rotation of the gravure plate 2 .

At the contact position, the ceramic green sheet 3 is pressed to the outer peripheral surface of the gravure plate 2 by the pressing force 4 . At this time, the conductive paste 12 filled in the concave portion 13 of the gravure plate 2 is transferred to the ceramic green sheet 3 , and the patterned conductive paste 12 is applied to the ceramic green sheet 3 . are printed

Here, although only a part of the flow of the conductive paste 12 is indicated by arrows in FIG. 4 , when the transfer start end of the concave portion 13 is moved to the contact position, the inside of the concave portion 13 is in the transfer direction (circumferential direction). The front side of (X) has a higher horizontal position than the rear side. For this reason, the conductive paste 12 held in the recess 13 tends to flow backward in the transfer direction (circumferential direction) X.

(Effect of spatial shape)

However, in the side space S2, the conductive paste 12 is curved from the beginning side to the rear end side in the transfer direction (circumferential direction) X along the side space S2 of the zigzag shape on the side of the embankment structure 20 side. flows meandering

Therefore, the flow rate of the conductive paste 12 is slowed, and when transferring to the ceramic green sheet 3 , it is difficult to scratch the conductive paste 12 at the end of the transfer.

(Effect of Crossbank (16))

In addition, the side space S2 is partitioned into a plurality of cells 171 by the transverse embankment 16 and the side side transverse embankment 21 .

Therefore, it is further prevented that the conductive paste 12 flows backward. In addition, the transverse embankment 16 and the side transverse embankment 21 become the starting points of the transfer of the conductive paste 12 to the ceramic green sheet 3, respectively, so that the transferred conductive paste 12 is further scratched. difficult.

In addition, when the gravure plate 2 rotates away from the ceramic green sheet 3 , a cobwebbing phenomenon of the conductive paste 12 occurs.

The generated yarn moves in the transfer direction (rotational direction) (X) and also in the axial direction (Y) along the side surface of the vertical embankment 15 and the side of the horizontal embankment 16 extending at a predetermined angle (θ). It goes winding. Accordingly, the conductive paste 12 is uniformly applied compared to the case where the seal is continuously generated at a fixed position in the axial direction Y. As shown in FIG.

(the effect that the cells 171 are connected)

For example, it is assumed that the embankment structure 20 and the side surface 131 are connected. Then, the concave portion 13 is completely divided into a plurality of cells 171 . In this case, when the conductive paste 12 does not flow between the cells 171 adjacent to each other during the transfer, and the amount of the conductive paste 12 or the yarn in the cell 171 is non-uniform, the transferred conductive paste There is a possibility that the thickness of (12) becomes non-uniform.

However, in the embodiment, the embankment structure 20 and the side surface 131 are not connected.

That is, a gap 29 is provided between the transverse embankment 16 extending from the embankment structure 20 and the side surface 131 , and the side side transverse embankment 21 extending from the side surface 131 and the embankment structure 20 ), a gap 28 is provided in the transverse embankment 16, and the cells 171 adjacent to each other in the transfer direction (circumferential direction) X are partially communicated.

Accordingly, the conductive paste 12 can flow between the cells 171 adjacent to each other in the transfer direction (circumferential direction) X. Accordingly, the conductive paste 12 may flow while filling each cell 171 partitioned by the cross embankment 16 and the side cross embankment 21 . As a result, the thickness uniformity of the transferred conductive paste 12 is improved.

In addition, in embodiment, only one embankment structure 20 is arrange|positioned in the recessed part 13. As shown in FIG. Therefore, for example, even in the case of a micro concave portion 13 having a width of 50 µm to 80 µm in the axial direction corresponding to a multilayer ceramic capacitor having a length of 0.2 mm x width 0.1 mm x thickness 0.125 mm, the conductive paste 12 ) can improve the thickness uniformity.

(Effect of concave width)

In the embodiment, the dimension L in the transfer direction (circumferential direction) X of the concave portion 13 of the gravure plate 2 is smaller than the nip width N.

Accordingly, the ceramic green sheet 3 moves away from the gravure plate 2 after the entire concave portion 13 comes into contact with the ceramic green sheet 3 during transfer. For this reason, the transfer uniformity of the electrically conductive paste 12 with respect to the ceramic green sheet 3 can be improved more.

(Manufacturing method of multilayer ceramic capacitor)

Next, the manufacturing method of a multilayer ceramic capacitor is demonstrated.

After the ceramic green sheet 3 on which the conductive paste 12 is formed as shown in FIG. 2 is obtained using the gravure printing machine 1, a plurality of ceramic green sheets 3 are laminated and pressed simultaneously, and cut as necessary. and then calcined to produce a laminate. In addition, a multilayer ceramic capacitor is manufactured by forming an external electrode on the multilayer body.

As described above for the multilayer ceramic capacitor, the conductive paste 12 is formed smoothly without scratches or the like throughout.

For this reason, the stress is not concentrated locally in the compression process, and, therefore, it is prevented from causing a short circuit defect such as the internal electrode contacting through the ceramic layer, or causing a poor insulation resistance due to the local thinning of the ceramic layer. can do.

(Experimental example)

Next, a plurality of gravure plates 2 having different embankment shapes of the inner region of the concave portion 13 are prepared, and 100 internal electrodes are printed by gravure printing using the gravure plate 2, respectively, and scratches of the print are eliminated. 5 shows the result of observation with an optical microscope. In the drawing, the case where 35 or more printing scratches occurred out of 100 is judged as ×, 10 or more and less than 35 are judged as △, 1 or more and less than 10 are judged as ○, and 0 is judged as ◎. did.

(Comparative example)

Comparative Example 1 is only a case where the embankment extends parallel to the transfer direction (circumferential direction) (X).

Comparative Example 2 includes a vertical embankment 15 of a zigzag shape, the inclination θ of the vertical embankment 15 is 60 degrees, and includes a transverse embankment 16 and a side embankment 21, and a transverse embankment. Reference numeral 16 extends and connects to the side 131 , and the side lateral embankment 21 extends and connects to the vertical embankment 15 , and the cells 171 are not connected to each other.

(Example)

Example 1 includes the vertical embankment 15 of the zigzag shape, the inclination θ of the vertical embankment 15 is 60 degrees, and the horizontal embankment 16 and the side side embankment 21 are not included. .

Example 2 includes a vertical embankment 15 of a zigzag shape, the inclination θ of the vertical embankment 15 is 60 degrees, and includes a transverse embankment 16 and a side embankment 21, and a transverse embankment. (16) and the side-side transverse embankment 21 do not overlap in the axial direction (Y).

Examples 3 to 10 include a zigzag-shaped vertical embankment 15 , a horizontal embankment 16 , and a side-side transverse embankment 21 , and the inclination θ of the vertical embankment 15 is different.

Example 3 has θ of 45 degrees, Example 4 has θ of 50 degrees, Example 5 has θ of 55 degrees, Example 6 has θ of 60 degrees, Example 7 has θ of 65 degrees, and Example 8 has θ is 70 degrees, in Example 9, θ is 75 degrees, in Example 10, θ is 80 degrees.

(result)

In the case of Comparative Example 1, the print scratches were 35 out of 100 ×,

In the case of Comparative Example 2, the print scratches were 18 out of 100, △,

In the case of Example 1, the print scratches were 25 out of 100, △,

In the case of Example 2, the print scratches were 18 out of 100, △,

When θ of Example 3 is 45 degrees, print scratches are 6 out of 100, ○,

When θ of Example 4 is 50 degrees, print scratches are 4 out of 100, ○,

When θ of Example 5 is 55 degrees, print scratches are 5 out of 100, ○,

When θ of Example 6 is 60 degrees, print scratches are 0 out of 100, ◎,

When θ of Example 7 is 65 degrees, print scratches are 5 out of 100, ○,

When the θ of Example 8 is 70 degrees, the print scratches are 7 out of 100, ○,

When θ of Example 9 is 75 degrees, the print scratches are 12 out of 100, △,

When θ of Example 10 was 80 degrees, the print scratches were Δ in 31 out of 100.

From the comparison of Comparative Example 1 in which only the vertical embankment extending parallel to the transfer direction and Example 1 in which the vertical embankment 15 is in a zigzag shape, compared to the case of only the embankment extending parallel to the transfer direction (circumferential direction) (X), It turned out that printing scratches are reduced by making the vertical embankment 15 into a zigzag shape.

By comparison of Examples 3 to 10 in which the inclination θ of the vertical embankment 15 is different, the inclination θ of the vertical embankment 15 is preferably 45 degrees or more and less than 75 degrees, and about 60 degrees is more was found to be desirable. In addition, when the inclination θ of the vertical embankment 15 is 75 degrees or more, there is no change to the case of only the horizontal embankment 16 perpendicular to the transfer direction (circumferential direction) X, and the effect of reducing the occurrence of printing scratches is reduced. could see that

From the comparison between Comparative Example 2 in which the cells 171 were not communicated and Example 6 in which the cells 171 were communicated, it was found that the side in which the cells 171 were in communication resulted in reduced print scratches.

From the comparison of Example 1 in which the cross embankment 16 and the side embankment 21 are not provided, and Example 6 in which the cross embankment 16 and the side cross embankment 21 are provided, the cross embankment 16 And it turned out that the side in which the side-side cross-bank 21 is provided reduces print scratches.

From the comparison of Example 2 without the overlap of the cross embankment 16 and the side embankment 21 and Example 6 with the overlap of the cross embankment 16 and the side cross embankment 21, the cross embankment 16 ) and the side with the overlap of the side lateral embankment 21, it turned out that print scratches are reduced.

In the above, one embodiment of the present invention has been described, but the present invention is not limited thereto, and various modifications are possible.

In the embodiment, although the horizontal embankment 16 was extended from the vertical embankment 15, it is not limited to this and the structure which does not include the transverse embankment 16 may be sufficient. Even in this case, the side surface of the side space S2 on the side of the embankment structure 20 has a zigzag shape.

Accordingly, since the conductive paste 12 passing through the side space S2 meanders in the transfer direction (circumferential direction) X, the flow of the conductive paste 12 can be slowed down, and the ceramic green sheet 3 ) has an effect on the reduction of scratches on the conductive paste 12 at the time of transfer.

S2: side space 1: gravure press
2: Gravure plate 2A: Shaft
3: Ceramic green sheet 4: Pressing
11: paste supply unit 12: conductive paste
13: recess 14: doctor blade
15: vertical embankment 15a: first vertical embankment
15b: second vertical embankment 16: horizontal embankment
20: embankment structure 21: side side embankment
28: inter-pole 29: inter-pole
131: side 151: connection part
171: cell

Claims (8)

A gravure plate having a cylindrical or cylindrical shape, rotatable about an axis, and provided on an outer peripheral surface with a concave portion for holding a paste transferred to a transfer target sheet,
The recess is
two opposite sides extending in the circumferential direction of the gravure plate;
A first vertical embankment extending obliquely in one of the axial directions with respect to the circumferential direction of the gravure plate, and connected to an end of the first vertical embankment and inclined to the other side of the axial direction with respect to the circumferential direction The extending second vertical embankments are alternately arranged in the circumferential direction, and the connecting portions of the first vertical embankments and the second vertical embankments include one longitudinal embankment alternately convex to one side and the other side in the axial direction,
The vertical embankment is divided into a plurality of cells in which both sides in the axial direction are adjacent to the side surface, and the vertical embankment and the side surface communicate with each other. The method of claim 1,
The first vertical embankment and the second vertical embankment, the inclination (θ) with respect to the circumferential direction is 45 degrees or more and less than 75 degrees, the gravure plate. 3. The method of claim 1 or 2,
A gravure plate comprising a plurality of transverse embankments extending in the axial direction from the axially convex side of the connecting portion. 3. The method of claim 1 or 2,
The side surface in the connection part, the gravure plate comprising a plurality of side-side transverse embankments extending to the concave side toward the side. 3. The method of claim 1 or 2,
The width of the concave portion in the axial direction is 50㎛ ~ 80㎛, the gravure plate. 3. The method of claim 1 or 2,
The width of the concave portion in the axial direction is 60㎛ ~ 80㎛, the gravure plate. A gravure plate having a cylindrical or cylindrical shape, rotatable about an axis, and provided on an outer peripheral surface with a concave portion for holding a paste transferred to a transfer target sheet,
The recess is
two opposite sides extending in the circumferential direction of the gravure plate;
A first vertical embankment extending obliquely in one of the axial directions with respect to the circumferential direction of the gravure plate, and connected to an end of the first vertical embankment and inclined to the other side of the axial direction with respect to the circumferential direction The extending second vertical embankments are alternately arranged in the circumferential direction, and the connecting portions of the first vertical embankments and the second vertical embankments include one longitudinal embankment alternately convex to one side and the other side in the axial direction,
The vertical embankment has both sides in the axial direction adjacent to the side surface, and a gravure plate divided into a plurality of cells communicating with each other between the vertical embankment and the side surface;
a paste supply unit in which the paste is stored;
A gravure printing machine comprising a pressure cylinder for sandwiching the transfer target sheet between the gravure plate and the gravure plate. A gravure plate having a cylindrical or cylindrical shape, rotatable about an axis, and provided with a concave portion on an outer circumferential surface for holding a paste transferred to a transfer target sheet, wherein the concave portion is the gravure plate Connected to two opposite side surfaces extending in the circumferential direction of the gravure plate, a first vertical embankment extending obliquely in one of the axial directions with respect to the circumferential direction of the gravure plate, and an end of the first vertical embankment and second vertical embankments extending at an angle to the other side of the axial direction with respect to the circumferential direction are alternately arranged in the circumferential direction, and the connecting portion of the first vertical embankment and the second vertical embankment is connected to one of the axial directions and A gravure plate divided into a plurality of cells comprising one vertical embankment alternately convex to the other side, wherein both sides in the axial direction are adjacent to the side surface, and the vertical embankment and the side surface communicate with each other;
a paste supply unit in which the paste is stored;
Using a gravure printing machine provided with a pressing cylinder for sandwiching the transfer target sheet between the gravure plate and the gravure plate,
Inserting the transfer target sheet between the rotating gravure plate and the press,
transferring the paste held in the recess to the transfer sheet by pressing the transfer sheet toward the gravure plate by the pressing;
A laminate is prepared by laminating the transfer target sheet to which the paste has been transferred,
A method of manufacturing a multilayer electronic component by forming an external electrode on an outer surface of the multilayer body.

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