WO2018168008A1 - Procédé d'impression de motif de ligne et plaque perforée pour imprimer un motif de ligne - Google Patents

Procédé d'impression de motif de ligne et plaque perforée pour imprimer un motif de ligne Download PDF

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Publication number
WO2018168008A1
WO2018168008A1 PCT/JP2017/031404 JP2017031404W WO2018168008A1 WO 2018168008 A1 WO2018168008 A1 WO 2018168008A1 JP 2017031404 W JP2017031404 W JP 2017031404W WO 2018168008 A1 WO2018168008 A1 WO 2018168008A1
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WO
WIPO (PCT)
Prior art keywords
screen plate
line pattern
substrate
printed
metal foil
Prior art date
Application number
PCT/JP2017/031404
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English (en)
Japanese (ja)
Inventor
浩一 宮田
達昭 篠田
福田　正人
Original Assignee
株式会社コベルコ科研
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Filing date
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Application filed by 株式会社コベルコ科研 filed Critical 株式会社コベルコ科研
Publication of WO2018168008A1 publication Critical patent/WO2018168008A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/24—Stencils; Stencil materials; Carriers therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns

Definitions

  • the present disclosure relates to a line pattern printing method and a line pattern printing screen plate.
  • the screen version using a wire mesh (wire mesh, # 360- ⁇ 16CL) is mainly used.
  • the width of the finger electrode to be printed is approximately 45 to 50 ⁇ m.
  • New wire meshes are also being manufactured with the aim of further thinning.
  • next-generation wire meshes (# 380- ⁇ 14CL, # 430- ⁇ 13CL) with an increased mesh count (mesh count), and knotless screen (knotless screen).
  • Patent Document 1 discloses a method of printing finger electrodes of a solar cell by off-contact screen printing.
  • the inventors of the present application have developed an original screen printing mesh in which an opening is provided in a metal foil, unlike a screen plate using a wire mesh, and have advanced the development of thinning technology.
  • the line pattern printed by screen printing is thin in the width direction and the width is as uniform as possible.
  • a phenomenon called “bleed” in which the length of the line pattern in the width direction partially expands may occur.
  • Development of a technique capable of suppressing the occurrence of bleeding is required, including the configuration disclosed in Patent Document 1.
  • an object of the present disclosure is to provide a line pattern printing method and a line pattern printing screen plate that can suppress the occurrence of bleeding, in order to solve the above problems.
  • a line pattern printing method includes a metal foil in which a large number of holes are formed along one direction, and a direction crossing the one direction on the back surface of the metal foil.
  • the squeegee is moved along the one direction on the surface of the screen plate so that the screen plate is pressed against the substrate to be printed and the paste is discharged from the opening to form a linear shape on the substrate to be printed.
  • the average angle formed by the screen plate and the substrate to be printed on the downstream side in the moving direction of the squeegee is kept at a certain value or more. Characterized in that it was.
  • a line pattern printing method uses a screen plate having a wire mesh and a resin that is arranged on the back surface of the wire mesh at an interval and forms an opening together with the wire mesh.
  • the screen plate is pressed against the substrate to be printed to discharge the paste from the opening, and a linear line is formed on the substrate to be printed.
  • a pattern is printed, and at the time of printing, the screen plate and the printing base on the downstream side in the moving direction of the squeegee And wherein the mean angle between that you have to keep a certain value or more.
  • the screen pattern for line pattern printing includes a metal foil in which a large number of holes are formed along one direction, and a space in the direction intersecting the one direction on the surface of the metal foil.
  • the ribs of the metal foil between the openings and the openings that meet each other have a cross-sectional area per unit length along the direction in which the openings are formed of 4000 ⁇ m 2 / mm or more.
  • the occurrence of bleeding can be suppressed.
  • the metal foil in which a large number of holes are formed along one direction and the back surface of the metal foil are arranged at intervals in a direction intersecting the one direction A method of printing a linear line pattern on a substrate to be printed using a screen plate having a resin that forms an opening together with the metal foil by opening a central portion of a hole, the surface of the screen plate By moving the squeegee along the one direction, the screen plate is pressed against the substrate to be printed, the paste is discharged from the opening, and a linear line pattern is printed on the substrate to be printed.
  • a line pattern printing method characterized in that an average angle formed by the screen plate and the substrate to be printed on the downstream side in the moving direction of the squeegee is maintained at a certain value or more. To provide. In this way, by keeping the average angle at a certain value or more, bleeding of the line pattern can be suppressed, which can contribute to thinning of the line pattern.
  • a method of printing a linear line pattern wherein a bias angle of the wire mesh is set to an angle at which a crossing portion where wires cross each other is not exposed to the opening, and the opening on the surface of the screen plate
  • an average angle formed by the screen plate and the substrate to be printed on the downstream side in the moving direction of the squeegee is a certain value or less. Characterized in that to keep the, to provide a line pattern printing method. In this way, by keeping the average angle at a certain value or more, bleeding of the line pattern can be suppressed, which can contribute to thinning of the line pattern.
  • the line pattern printing method according to the first aspect or the second aspect is provided, wherein the average angle is 0.7 degrees or more. In this way, by keeping the average angle at 0.7 degrees or more, it is possible to further suppress line pattern bleeding.
  • the screen plate is fixed on the upstream side and the downstream side in the moving direction of the squeegee, and the distance is set to 320 mm or less.
  • a line pattern printing method according to any one of the aspects is provided. According to such a method, the downstream angle formed by the screen plate and the substrate to be printed is larger than when the distance is set to exceed 320 mm. Thereby, the average angle on the downstream side formed by the screen plate and the substrate to be printed during printing can be increased, and bleeding of the line pattern can be further suppressed.
  • the line according to any one of the first to fourth aspects, wherein an interval between the substrate to be printed and the screen plate is set to 1.6 mm or more.
  • a pattern printing method is provided. According to such a method, the downstream angle formed by the screen plate and the substrate to be printed can be increased as compared with the case where the distance is set to be smaller than 1.6 mm. Thereby, the average angle on the downstream side formed by the screen plate and the substrate to be printed during printing can be increased, and bleeding of the line pattern can be further suppressed.
  • the line pattern printing method according to any one of the first to fifth aspects, wherein the line pattern is used as a finger electrode of a solar cell. According to such a method, since the finger electrode of a solar cell can be formed thinly, the conversion efficiency of the solar cell can be improved.
  • the metal foil in which a large number of holes are formed along one direction and the back surface of the metal foil are arranged at intervals in a direction intersecting the one direction, A resin for forming an opening together with the metal foil by opening a central portion of the hole, and a screen plate for printing a linear line pattern on a substrate to be printed, the adjacent opening and the
  • the rib of the metal foil between the openings has a cross-sectional area per unit length along the direction in which the openings are formed of 4000 ⁇ m 2 / mm or more.
  • the line pattern printing screen plate according to the seventh aspect is provided, wherein the line pattern is a finger electrode of a solar cell.
  • the printing is performed such that the average angle on the downstream side formed by the screen plate and the substrate to be printed is maintained at a certain value or more, so that the finger electrode of the solar cell is thinly formed while suppressing bleeding. Therefore, the conversion efficiency of the solar cell can be improved.
  • FIG. 1 is a plan view showing a part of the screen plate 2.
  • 2A is a cross-sectional view taken along the line AA in FIG. 1
  • FIG. 2B is a cross-sectional view taken along the line BB in FIG.
  • the screen plate 2 includes a metal foil 4 and a resin 6.
  • the metal foil 4 is a metal foil mesh formed of a metal such as SUS, Ni, Ni alloy.
  • a large number of holes 8 are formed in the metal foil 4 along the X direction.
  • a rib 4 a is formed between the adjacent holes 8 in the metal foil 4. As shown in FIGS. 2A and 2B, the rib 4a may have a tapered cross section whose width decreases from the front surface to the back surface.
  • the metal foil 4 may be produced by an arbitrary method such as an electroforming method (electroforming method), an etching method, a laser processing method, or a machining method.
  • Resin 6 is a resin provided on the back side of the metal foil 4. As shown in FIG. 1, the resin 6 is arranged at an interval in the Y direction that intersects the X direction. In the example of FIG. 1, the Y direction is orthogonal to the X direction, but is not limited to this.
  • the resin 6 opens the central portion of the hole 8 of the metal foil 4 and forms the opening 10 together with the metal foil 4.
  • a member of any material may be used as long as it is a member (opening forming member) that forms the opening 10 together with the metal foil 4.
  • the screen plate 2 is fixed in a substantially horizontal direction by a metal frame (aluminum frame) 14.
  • the screen plate 2 is fixed to the metal frame 14 at the upstream end 22a and the downstream end 22b.
  • a distance D from the upstream end 22 a to the downstream end 22 b is the same as the inner diameter of the metal frame 14.
  • the substrate 12 to be printed is arranged below the screen plate 2 with an interval.
  • the printed substrate 12 is fixed so as to be substantially parallel to the screen plate 2.
  • an interval adjusting mechanism is provided for adjusting the interval (clearance C) in the vertical direction between the screen plate 2 and the substrate 12 to be printed, and the clearance C can be adjusted.
  • the squeegee 13 is moved along the X direction on the surface of the screen plate 2. Thereby, the screen plate 2 is pressed against the substrate 12 to be printed, and the paste 16 is discharged from the opening 10 described above, so that a linear line pattern can be formed on the substrate 12 to be printed.
  • the screen plate 2 of the present embodiment described above is a screen plate for printing finger electrodes of solar cells using the metal foil 4, and the inventors of the present application use the metal foil 4 used for such a screen plate 2. Have been developing.
  • a screen plate 100 using a conventional wire mesh is shown in FIG. As shown in FIG. 4, the wire mesh 104 is exposed from between the resins 102 provided at intervals. In the wire mesh 104, an intersection (wire intersection, knot) 106 where the wires intersect is exposed.
  • the screen plate 2 using the metal foil 4 shown in FIG. 1 has one feature that the opening 10 does not have a wire intersection. By not having wire intersections, the regions of the openings 10 can be formed regularly. Thereby, there is little clogging of the paste 16 in the opening part 10, and the permeability
  • the paste 16 is excessively discharged, the amount of paste transferred to the substrate 12 to be printed may increase. As a result, the paste 16 spreads in the width direction, and bleeding may occur. When bleeding occurs, the width of the finger electrode increases and the conversion efficiency of the solar cell decreases.
  • FIG. 5 shows an example of the result of forming the finger electrode line pattern using the screen plate 2 shown in FIG.
  • the finger electrode line pattern L1 in which bleeding occurs is shown on the left side
  • the finger electrode line pattern L2 in which bleeding hardly occurs is shown on the right side.
  • the left line pattern L1 it is understood that “bleeding” spreading in the width direction Y1 is partially generated.
  • the line pattern L2 on the right side it can be seen that the length in the width direction Y2 is substantially constant, and blurring hardly occurs.
  • the bleeding that occurs in the line pattern L1 shown on the left side of FIG. 5 occurs regularly and at regular intervals.
  • the inventors of the present application have confirmed that these bleedings occur at positions corresponding to the openings 10.
  • bleeding is suppressed at positions corresponding to the ribs 4 a of the metal foil 4.
  • a line pattern L1 in which the length in the width direction Y1 is thick and narrow is periodically repeated as shown on the left side of FIG. 5 is formed.
  • FIG. 5 The phenomenon shown in FIG. 5 is considered to occur on the same principle even in a knotless screen in which the wire intersection is not exposed in the opening as in the screen plate 2 in FIG.
  • An example of a knotless screen is shown in FIG.
  • the wire mesh 204 is exposed from between the resins 202 arranged at intervals, but the wire intersection 206 is not exposed to the opening. That is, the bias angle of the wire mesh 204 is set to an angle (for example, within ⁇ 1.0 °) that does not expose the wire intersection 206 where the wires intersect with each other in the opening.
  • Such a knotless screen 200 is also an object of the present invention.
  • the screen plate 2 using the metal frame 14 having a small inner diameter is more line-shaped than the screen plate 2 using the metal frame 14 having a large inner diameter. It was found that the bleeding of the pattern can be reduced.
  • the metal frame 14 having a larger inner diameter is 390 mm (outer diameter is 450 mm), and the metal frame 14 having a smaller inner diameter is 300 mm (outer diameter is 355 mm).
  • the upstream angle in the moving direction (X direction) of the squeegee 13 is ⁇ 1, and the downstream angle is ⁇ 2.
  • the upstream angle in the moving direction of the squeegee 13 is ⁇ 1, and the downstream angle is ⁇ 2.
  • the metal frame 14b having a smaller inner diameter has a larger angle between the upstream side and the downstream side of the metal frame 14b having a smaller inner diameter even at the same position on the substrate 12 to be printed. Accordingly, the phenomenon shown in FIG. 5 in which bleeding is suppressed is that the angles ⁇ 1 and ⁇ 2 formed by the screen plate 2b and the printing substrate 12 are larger than the angles ⁇ 1 and ⁇ 2 formed by the screen plate 2a and the printing substrate 12. It is thought to be caused by
  • FIG. 8 is a schematic diagram showing the change of the screen plate 2 when the squeegee 13 moves from upstream to downstream.
  • the screen plate 2 at the initial position (print start point) of the squeegee 13 is indicated by a dotted line
  • the screen plate 2 at the final position (print end point) of the squeegee 13 is indicated by a dashed line.
  • the inventors of the present application focused on the change in the downstream angle formed by the screen plate 2 and the substrate 12 to be printed.
  • the downstream angle formed by the screen plate 2 and the substrate 12 to be printed increases ( ⁇ 1 ⁇ ⁇ 2).
  • the upstream angle formed by the screen plate 2 and the substrate 12 to be printed becomes smaller as the squeegee 13 moves downstream ( ⁇ 3 ⁇ ⁇ 4).
  • the distance between the screen plate 2 on the upstream side after the squeegee 13 passes and the substrate 12 to be printed becomes smaller (the angle becomes smaller), and the separation of the plate becomes worse.
  • the plate separation becomes worse means that the screen plate 2 becomes difficult to separate from the substrate 12 to be printed. If the plate separation is deteriorated, it causes printing unevenness and bleeding. Therefore, an off-contact function for forcibly lifting the upstream side of the screen plate 2 after the squeegee 13 passes is used to promote plate separation.
  • the angle on the downstream side of the screen plate 2 and the substrate to be printed 12 is increased (the upstream angle is reversed). The occurrence of bleeding can be suppressed.
  • the screen plate 2 using the metal foil 4 does not expose the mesh intersection in the opening 10 as described above. high. Therefore, it is presumed that it is insufficient to suppress bleeding of the line pattern only by promoting the plate separation after the squeegee 13 passes by the off-contact function. From this, it is effective to control the angle formed between the screen plate 2 and the printed substrate 12 downstream from the stage where the paste 16 is pushed by the squeegee 13 and passes through the opening 10 of the screen plate 2. The inventors have newly found out.
  • FIG. 9 shows a case where the screen plate 2a is fixed to the metal frame 14a having a large inner diameter shown in FIG. 7, that is, a case where the angle ⁇ 2 formed between the screen plate 2a and the printed substrate 12 is small.
  • FIG. 10 shows a case where the screen plate 2b is fixed to the metal frame 14b having a small inner diameter shown in FIG. 7, that is, a case where the angle ⁇ 2 formed between the screen plate 2b and the printed substrate 12 is large.
  • the method conceived by the inventors of the present application is completely different from the purpose of the off-contact function of promoting plate separation after the squeegee 13 passes. Specifically, when the paste 16 is pushed into the opening 10 of the screen plate 2 by the squeegee 13, the downstream angle formed by the screen plate 2 and the substrate 12 to be printed is controlled, so that the line pattern of the finger electrode is controlled. It reduces bleeding. Thus, it is completely different from the known off-contact function.
  • a method of controlling a “squeegee angle” (an angle formed by the squeegee 13 and the substrate 12 to be printed, also referred to as an “attack angle”), which is an inclination angle of the squeegee 13 is also conceivable.
  • the attack angle is an angle formed by the squeegee 13 and the substrate 12 to be printed.
  • the inventors of the present application newly found that the “downstream angle formed by the screen plate 2 and the substrate 12 to be printed” is effective in suppressing bleeding, unlike the method of controlling the attack angle.
  • FIG. 11 is a schematic diagram for obtaining the downstream angle ⁇ formed by the screen plate 2 and the substrate 12 to be printed.
  • the distance between the screen plate 2 and the substrate 12 to be printed is C
  • the inner diameter of the metal frame 14 is D, as in FIG.
  • the angle ⁇ can be calculated from the following equation 1.
  • FIGS. 12 and 13 show the results of calculating the angle ⁇ using Equation 1 and plotting representative points under various conditions. 12 and 13, the horizontal axis represents the position of the squeegee 13 (the downstream end of the printed substrate 12 is 0 mm), and the vertical axis represents the downstream angle formed by the screen plate 2 and the printed substrate 12. represents ⁇ .
  • FIG. 12 shows the calculation results of Condition 1 and Condition 2.
  • the length of the printed substrate 12 in the X direction is 157 mm.
  • the angle ⁇ increases as the squeegee 13 moves from upstream to downstream in both conditions 1 and 2.
  • the angle ⁇ increases as the squeegee 13 moves from upstream to downstream than in the condition 2 using the metal frame 14 having a small inner diameter.
  • the average angle ⁇ was 0.66 °
  • the average angle ⁇ was 0.48 °. From this, it can be seen that even with the same clearance C, printing can be performed with the angle ⁇ kept large by using the metal frame 14 having a smaller inner diameter.
  • FIG. 13 shows the calculation results of Condition 3 and Condition 4.
  • the length of the substrate 12 to be printed in the X direction is 157 mm.
  • the average angle ⁇ of condition 3 is 0.7 degrees or more.
  • the inventors of the present application keep the average angle of the downstream angle ⁇ formed by the screen plate 2 and the substrate 12 to be printed above a certain value, particularly 0.7 ° or more.
  • the present inventors have found that there is a remarkable effect in suppressing the bleeding of the line pattern of the finger electrode.
  • Such knowledge about the average angle is considered to be similarly applicable to the knotless screen 200 described above.
  • the average angle ⁇ during printing is 0.71.
  • the printing conditions of the present invention can be realized.
  • the screen plate 2 is fixed using the metal frame 14 having an inner diameter of 390 mm, even if the clearance C is increased to 2.0 mm, the average angle increases only to 0.64 °.
  • the clearance C increases, the average angle ⁇ can be increased, but the load on the screen plate 2 (particularly the metal foil 4) pushed by the squeegee 13 increases. For this reason, in order to suppress breakage of the metal foil 4 and the like, it is preferable to set the clearance C to 2.0 mm or less.
  • the upper limit value of the average angle ⁇ may be set to 2.2 °, for example, in consideration of the load applied to the metal foil 4.
  • the inner diameter D of the metal frame 14 may be 300 mm and the clearance C may be 5 mm.
  • the clearance C or the inner diameter D of the metal frame 14 may be adjusted as can be seen from Equation 1.
  • the clearance C can be adjusted by, for example, the above-described interval adjusting mechanism (not shown).
  • the inner diameter D of the metal frame 14 can be adjusted by properly using the type of the metal frame 14 to be used.
  • FIG. 14 shows the relationship between the average angle ⁇ and the spread width of the finger electrode for the results of screen printing under various conditions.
  • the horizontal axis represents the average angle of the downstream angle ⁇ formed by the screen plate 2 and the substrate 12 to be printed
  • the vertical axis represents the spread width of the printed finger electrode.
  • “Bleeding width” is (finger electrode width) ⁇ (width of opening 10) measured with an optical microscope. It can be said that the smaller the value of the bleeding width, the less the bleeding.
  • FIG. 14 shows the experimental results of Condition 5, Condition 6, and Condition 7.
  • the metal foil 4 is made of stainless steel foil (SUS301).
  • the squeegee angle is set to 60 °
  • condition 7 the squeegee angle is set to 70 °.
  • Condition 5 uses a metal frame 14 with an inner diameter of 300 mm and sets the clearance C to 1.4 mm.
  • Condition 6 uses a metal frame 14 having an inner diameter of 300 mm and sets the clearance C to 1.7 mm.
  • Condition 7 uses a metal frame 14 having an inner diameter of 390 mm and sets the clearance C to 2.0 mm.
  • condition 5 the result of three patterns with different thicknesses of the screen plate 2 is represented.
  • the condition 6 represents the results of three patterns with different widths of the opening 10
  • the condition 7 represents the results of four patterns with different widths of the opening 10.
  • the average angle of the downstream angle ⁇ formed by the screen plate 2 and the substrate 12 to be printed is about 0.58 ° for the condition 5 and about 0.71 ° for the condition 6. In the case of 7, it is about 0.62 °.
  • the finger electrode line is maintained by keeping the average angle formed by the screen plate 2 and the substrate 12 to be printed at the downstream side in the moving direction of the squeegee 13 at a certain value or more, particularly 0.7 ° or more. It can be seen that the bleeding of the pattern can be suppressed. Thereby, it can contribute to thinning of a line pattern.
  • Example 2 Next, the inventors of the present invention relate to a line pattern printing method for performing printing while keeping the average angle on the downstream side formed by the screen plate 2 and the substrate to be printed 12 at a certain value or more. In order to find out the characteristics of the metal foil 4, an experiment shown in FIG.
  • FIG. 15 shows a result of whether or not the metal foil 4 is broken when the above-described line pattern printing method is performed while changing the specification of the metal foil 4. Specifically, the strength of the metal foil 4 when the screen plate 2 using the stainless steel foil (SUS301) metal foil 4 was fixed to the metal frame 14 having an inner diameter of 300 mm and screen-printed was examined.
  • SUS301 stainless steel foil
  • “mesh specification” represents the pitch a of the openings 10 / the width b of the openings 10 (FIG. 16).
  • “80/50” in the “mesh specification” column means that the pitch a of the openings 10 is 80 ⁇ m and the width b of the openings 10 is 50 ⁇ m.
  • the “mesh thickness” represents the thickness of the metal foil 4 (the thickness of the rib 4a) ( ⁇ m).
  • cross-sectional area per unit length is obtained by calculating the cross-sectional area per unit length in the X direction of the rib 4 a under each condition.
  • the cross-sectional area is determined by cutting the metal foil 4 along the cutting plane B (FIG. 16), measuring the cross-sectional area of each rib 4a by SEM observation, and measuring the ribs per mm from the pitch a of the openings 10.
  • the cross-sectional area of 4a was calculated (truncated to 100 ⁇ m 2 units).
  • the “cross-sectional area per unit length” was 4000 ⁇ m 2 / mm or more, and the metal foil 4 did not break during the printing test with the clearance C being 2 mm (evaluation). Is ⁇ ).
  • the metal foil 4 No breakage occurs. That is, by setting such a cross-sectional area, the metal foil 4 and the screen plate 2 suitable for the line pattern printing method of the present invention can be obtained.
  • the cross-sectional area of the rib 4a is 4,000 ⁇ m 2 / mm or more. It is preferable that
  • the aspect ratio of the opening 10 in the screen plate 2 is the thickness of the screen plate 2 / the width b of the opening 10.
  • the aspect ratio of the opening 10 may be set to 1.4 or less.
  • the resistance of the paste 16 that passes through the opening 10 can be set low.
  • the opening width c of the opening 10 is the length in the width direction of the opening 10 determined by the interval between the resins 6 as shown in FIG.
  • the opening width c may be set to 15 ⁇ m or more and 100 ⁇ m or less.
  • the opening width c By setting the opening width c to 100 ⁇ m or less, the width of the line pattern can be reduced. As a result, it is possible to avoid a situation where the line pattern itself becomes thick and the influence of bleeding does not become a problem.
  • the opening width c by setting the opening width c to 15 ⁇ m or more, it is possible to suppress deterioration of the paste dischargeability due to the resistance of the inner wall surface of the resin 6. Thereby, it is possible to avoid that the problems of rubbing, leveling (level difference), and disconnection become dominant as problems other than bleeding.
  • the average angle formed by the screen plate 2 and the printing substrate 12 is controlled to 0.7 degrees or more has been described.
  • the average angle may be set to a value that can suppress bleeding of the line pattern according to various conditions.
  • the invention of the present disclosure can be applied to a line pattern printing method and a screen pattern for line pattern printing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Printing Methods (AREA)
  • Screen Printers (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

L'invention concerne un procédé d'impression d'un motif de ligne linéaire sur un substrat sur lequel imprimer à l'aide d'une plaque perforée comprenant : une feuille métallique formée avec une multiplicité de trous le long d'une direction ; et une résine disposée avec un espace interposé dans une direction croisant la direction sur une surface arrière de la feuille métallique, laissant les centres de la multiplicité de trous ouverts et formant ainsi des parties ouvertures avec la feuille métallique. Le procédé consiste à : déplacer une raclette dans une direction sur une surface supérieure de la plaque perforée pour presser la plaque perforée contre le substrat sur lequel imprimer et pour éjecter de la pâte par les parties ouvertures pour imprimer un motif de ligne linéaire sur le substrat sur lequel imprimer ; et, pendant l'impression, maintenir à au moins une certaine valeur un angle moyen formé entre la plaque perforée et le substrat sur lequel imprimer, d'un côté aval dans une direction de déplacement de la raclette.
PCT/JP2017/031404 2017-03-17 2017-08-31 Procédé d'impression de motif de ligne et plaque perforée pour imprimer un motif de ligne WO2018168008A1 (fr)

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JP2017052994A JP2018154028A (ja) 2017-03-17 2017-03-17 ラインパターン印刷方法及びラインパターン印刷用スクリーン版
JP2017-052994 2017-03-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI764728B (zh) * 2021-05-25 2022-05-11 倉和股份有限公司 無網結網版製作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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