WO2016045135A1 - 网版印刷方法 - Google Patents

网版印刷方法 Download PDF

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Publication number
WO2016045135A1
WO2016045135A1 PCT/CN2014/087760 CN2014087760W WO2016045135A1 WO 2016045135 A1 WO2016045135 A1 WO 2016045135A1 CN 2014087760 W CN2014087760 W CN 2014087760W WO 2016045135 A1 WO2016045135 A1 WO 2016045135A1
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WO
WIPO (PCT)
Prior art keywords
mesh
substrate
distance
printing
frame
Prior art date
Application number
PCT/CN2014/087760
Other languages
English (en)
French (fr)
Inventor
余威
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to GB1700089.4A priority Critical patent/GB2541630B/en
Priority to KR1020177002036A priority patent/KR101878620B1/ko
Priority to JP2017506763A priority patent/JP6383487B2/ja
Priority to RU2017106040A priority patent/RU2673425C2/ru
Publication of WO2016045135A1 publication Critical patent/WO2016045135A1/zh

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Classifications

    • 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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0813—Machines for printing sheets with flat screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0881—Machines for printing on polyhedral articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • 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
    • B41F15/423—Driving means for reciprocating squeegees
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
    • H01L21/4814—Conductive parts
    • H01L21/4846—Leads on or in insulating or insulated substrates, e.g. metallisation
    • H01L21/4867—Applying pastes or inks, e.g. screen printing
    • 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
    • H05K3/1216—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 by screen printing or stencil printing
    • H05K3/1233—Methods or means for supplying the conductive material and for forcing it through the screen or stencil

Definitions

  • the present invention relates to the field of flat display, and more particularly to a screen printing method.
  • the screen printing method is to form a pattern, a character, etc. on a screen, apply a coating on the screen, press the screen with a squeegee, and make the screen contact the substrate (for example, a glass substrate, etc.), scraping
  • the screen is fixed by a mesh (for example, a wire mesh) and then fixed on a hollow frame.
  • the mesh located in the peripheral region of the screen is more tight than the mesh located in the central portion of the screen, thereby causing the mesh located in the peripheral region of the screen to be more than the mesh located in the central portion of the screen.
  • the compressive deformation that can be generated is inconsistent, and the compression shape change of the mesh located in the peripheral region of the screen is small, thereby affecting the overall printing quality of the mesh.
  • the peripheral area of the screen and the central area of the screen also need to be pressed down to the substrate by the squeegee to transfer the screen coating to the substrate. As the number of times of printing increases, the mesh on the screen is easily slack, so that the life of the screen is shortened.
  • the distance between the screen and the carrier is usually reduced.
  • reducing the distance between the screen and the carrier causes the central portion of the screen to be easily adhered to the carrier by the coating.
  • printing is abnormal, and the printing quality of the screen is poor.
  • the invention provides a screen printing method capable of improving the printing quality of the screen.
  • the invention provides a screen printing method, the screen printing method comprising:
  • a screen comprising a hollow frame and a mesh, the distance between the frame and the substrate being a first distance, the mesh being coated with a coating and the mesh
  • the mesh is fixed on the frame, wherein the mesh comprises a first side and a second side which are fixed on the frame and are oppositely disposed;
  • the scraper pressing the mesh to contact the mesh to transfer the paint on the mesh to the substrate;
  • the squeegee moves from the first side of the mesh to the second side of the mesh, and when the squeegee is pressed from the first side of the mesh
  • the mesh yarn is such that the mesh yarn contacts the printing substrate and moves to a middle portion of the mesh yarn to make the mesh yarn contact the printing substrate, between the frame body and the printing substrate The distance increases from the first distance to a second distance.
  • the squeegee presses the mesh from a middle portion of the mesh to cause the mesh to contact the transfer substrate and move to the mesh
  • the second side is such that the mesh contacts the printing substrate, a distance between the frame and the printing substrate is reduced by the second distance.
  • the distance between the frame and the substrate is determined by the second distance "Reducing" includes:
  • the distance between the frame and the substrate is determined by the second distance In the decreasing to the first distance", a distance between the frame and the substrate is uniformly reduced by the second distance to the first distance.
  • the distance between the frame and the substrate is reduced by the second distance.
  • the squeegee moves from the first side of the mesh to the second side of the mesh, when the squeegee Pressing the mesh from the first side of the mesh to contact the mesh with the substrate and moving to the middle of the mesh to contact the mesh with the substrate The distance between the frame and the substrate is increased from the first distance to the second distance.
  • the squeegee moves from the first side of the mesh to the second side of the mesh, and when the squeegee is pressed from the first side of the mesh
  • the mesh yarn is such that the mesh yarn contacts the printing substrate and moves to a middle portion of the mesh yarn to make the mesh yarn contact the printing substrate, between the frame body and the printing substrate
  • the distance is increased from the first distance to a second distance.
  • the distance between the frame and the substrate is increased from the first distance to the second distance.
  • the squeegee moves from the first side of the mesh to the second side of the mesh, and when the squeegee is pressed from the first side of the mesh
  • the mesh is fixed such that the mesh contacts the printing substrate and moves to a middle portion of the mesh to contact the printing substrate, the screen is fixed, and the printing substrate is moved.
  • the distance between the frame and the substrate is increased from the first distance to a second distance.
  • the step "the printing of the squeegee from the first side of the mesh to the second side of the mesh when printing, when the squeegee Pressing the mesh from the first side of the mesh to contact the mesh with the substrate and moving to the middle of the mesh to contact the mesh with the substrate The distance between the frame and the substrate is increased from the first distance to the second distance.
  • the squeegee moves from the first side of the mesh to the second side of the mesh, and when the squeegee is pressed from the first side of the mesh
  • the screen is moved to fix the substrate; The distance between the screen and the substrate is uniformly increased from the first distance to a second distance.
  • the distance between the frame and the substrate is first The distance is gradually increased to a second distance such that the compression deformation of the mesh between the first side of the mesh to the middle of the mesh is more consistent, thereby improving the print quality of the mesh.
  • the distance between the frame and the printing substrate gradually The reduction is such that the compression deformation of the mesh between the middle portion of the mesh to the second side of the substrate is more consistent, thereby improving the print quality of the mesh.
  • FIG. 1 is a flow chart of a screen printing method according to a preferred embodiment of the present invention.
  • Figure 2 is a side view of the tool used in the screen printing method of the present invention.
  • FIG. 3 is a schematic perspective view showing the screen and the squeegee of FIG. 2 of the present invention.
  • FIG. 4 is a schematic view of the first side of the gauze being printed on the second side of the mesh when the squeegee is located on the first side of the mesh and the squeegee is not pressed by the gauze according to a preferred embodiment of the present invention.
  • FIG. 5 is a schematic view showing the first side of the mesh yarn being printed on the second side of the mesh when the first side of the mesh is printed on the first side of the mesh and the squeegee pressing the mesh.
  • FIG. 6 is a schematic view showing a state in which the squeegee is located in the middle of the mesh and the squeegee is not pressed by the first side of the mesh when printing on the second side of the mesh according to a preferred embodiment of the present invention.
  • FIG. 7 is a schematic view showing a state in which the squeegee is located in the middle of the mesh and the squeegee presses the mesh when the first side of the mesh is printed to the second side of the mesh according to a preferred embodiment of the present invention.
  • FIG. 8 is a schematic view showing the second side of the gauze when the first side of the gauze is printed on the second side of the gauze according to a preferred embodiment of the present invention, and the squeegee is not pressed against the gauze. .
  • FIG. 9 is a schematic view showing the second side of the gauze when the first side of the gauze is printed on the second side of the gauze according to a preferred embodiment of the present invention, and the squeegee is pressed against the second side of the gauze and the squeegee presses the gauze.
  • FIG. 1 is a flow chart of a screen printing method according to a preferred embodiment of the present invention.
  • Figure 2 is a side view of the tool used in the screen printing method of the present invention.
  • 3 is a schematic perspective view showing the screen and the squeegee of FIG. 2 of the present invention.
  • the screen printing method includes the following steps.
  • a substrate 100 is provided.
  • the substrate 100 may be a glass substrate or a substrate of another material, and the screen printing method may be used to print a pattern, a character, or the like on the substrate 100.
  • the surface of the substrate 100 is a flat surface. It is to be understood that in other embodiments, the surface of the substrate 100 may be a curved surface.
  • a screen 200 is provided.
  • the screen 200 includes a hollow frame 210 and a mesh 220.
  • the distance between the frame 210 and the substrate 100 is a first distance d1.
  • the coating 220 is coated with a coating and the mesh 220 is fixed around the frame 210.
  • the mesh 220 includes a first side 221 and a second oppositely disposed on the frame 210. Side 222.
  • the mesh yarn 210 is a steel mesh and thus has a long service life.
  • the mesh 220 is provided with a pattern or a character. When the mesh 220 is in contact with the substrate 110, the coating applied on the mesh 220 is applied to the substrate 100, thereby The pattern or text on the mesh 220 is transferred onto the substrate 100. Referring to FIG.
  • the distance between the frame 210 and the substrate 100 in the screen 200 is a first distance d1.
  • the distance between the mesh 220 and the substrate 100 is The first height h1.
  • the first height h1 between the mesh 220 and the substrate 100 is greater than the first distance d1 between the frame 210 and the substrate 100.
  • the mesh 220 is fixed to the surface of the frame 210 adjacent to the substrate 100. At this time, the mesh between the mesh 220 and the substrate 100 is The first height h1 is equal to the first distance d1 between the frame 210 and the substrate 100.
  • Step S103 a squeegee 300 is provided, and the squeegee 300 presses the mesh 220 to bring the mesh 220 into contact with the printing substrate 100 to transfer the coating of the mesh 220 to the printing substrate. On the substrate 100.
  • Step S104 when printing, the squeegee 300 moves from the first side 221 of the mesh 220 to the second side 222 of the mesh 220, when the squeegee 300 is from the The first side 221 of the mesh 220 presses the mesh 220 to cause the mesh 220 to contact the printing substrate 100 and move to the middle portion 223 of the mesh 220 to cause the mesh 220
  • the distance between the frame 210 and the substrate 100 is increased from the first distance d1 to the second distance d2.
  • the step S104 printing 300 moves from the first side 221 of the mesh 220 to the second side 222 of the mesh 220 when printing, when the scraping
  • the plate 300 presses the mesh 220 from the first side 221 of the mesh 220 to cause the mesh 220 to contact the printing substrate 100 and move to the middle portion 223 of the mesh 220 so that When the mesh 220 contacts the substrate 100, the distance between the frame 210 and the substrate 100 is determined by the first distance
  • the increase to the second distance d2" specifically includes the following steps.
  • the squeegee 300 moves from the first side 221 of the mesh 220 to the second side 222 of the mesh 220, when the squeegee 300 is from the mesh 220
  • the first side 221 presses the mesh 220 to cause the mesh 220 to contact the printing substrate 100 and move to the middle portion 223 of the mesh 220 to cause the mesh 220 to contact the mesh
  • the distance between the frame 210 and the substrate 100 is uniformly increased from the first distance to the second distance d2.
  • Step S104 When printing, the squeegee 300 moves from the first side 221 of the mesh 220 to the second side 222 of the mesh 220, when the squeegee 300 The first side 221 of the mesh 220 presses the mesh 220 to cause the mesh 220 to contact the printing substrate 100 and move to the middle portion 223 of the mesh 220 to make the net When the yarn 220 contacts the substrate 100, the distance between the frame 210 and the substrate 100 is increased from the first distance d1 to the second distance d2".
  • the following embodiments are possible.
  • the squeegee 300 moves from the first side 221 of the mesh 220 to the second side 222 of the mesh 220 during printing, when the squeegee 300 Pressing the mesh 220 from the first side 221 of the mesh 220 to contact the mesh 220 with the substrate 100 and moving to the middle 223 of the mesh 220 to
  • the screen 210 is fixed, and the printing substrate 100 is moved such that the distance between the housing 210 and the printing substrate 100 is increased by the first distance d1. Up to the second distance d2.
  • the squeegee 300 moves from the first side 221 of the mesh 220 to the second side 222 of the mesh 220 when printing, when the squeegee 300 pressing the mesh 220 from the first side 221 of the mesh 220 to contact the mesh 220 with the printing substrate 100 and moving to the middle portion 223 of the mesh 220 to
  • the screen 220 is moved, and the substrate 100 is fixed such that the distance between the frame 210 and the substrate 100 is from the first distance d1. Increase to the second distance d2.
  • FIG. 5 is a schematic view of a first embodiment of the present invention, in which the first side of the mesh yarn is printed on the second side of the mesh, and the scraper is located on the first side of the mesh and the scraper is used.
  • Schematic diagram when pressing the mesh As shown in FIG. 5, the squeegee 300 presses the mesh 220 from the first side 221 of the mesh 220 to contact the mesh 220 with the substrate 100. At this time, the distance between the frame 210 and the substrate 100 is constant, and is still the first distance d1.
  • Figure 6 In a preferred embodiment of the present invention, when the first side of the mesh is printed toward the second side of the mesh, the squeegee is located in the middle of the mesh and the squeegee is not pressed against the mesh.
  • the distance between the frame 210 and the carrier substrate 100 is a second distance d2
  • the distance between the mesh 220 and the carrier substrate 100 is a second height h2.
  • the second distance d2 is greater than the first distance d1.
  • the second height h2 between the mesh 220 and the substrate 100 is greater than the second distance d2 between the frame 210 and the substrate 100.
  • the mesh 220 is fixed to the surface of the frame 210 adjacent to the substrate 100. At this time, the mesh between the mesh 220 and the substrate 100 is The second height h2 is equal to the second distance d2 between the frame 210 and the substrate 100.
  • FIG. 7 is a schematic view of a preferred embodiment of the present invention, when the first side of the mesh is printed to the second side of the mesh, the squeegee is located in the middle of the mesh and the squeegee presses the mesh. Schematic diagram of the time. As shown in FIG. 7, the squeegee 300 presses the mesh 220 from the middle portion 223 of the mesh 220 so that the mesh 220 contacts the printing substrate 100 to press the mesh. Information such as a pattern or a character of the middle portion 223 of 220 is transferred onto the substrate 100.
  • the squeegee 300 can be pressed all the time.
  • the mesh 220 is placed such that the mesh 220 is always in contact with the substrate 100.
  • Step S105 when printing, when the squeegee 300 presses the mesh 220 from the middle portion 223 of the mesh 220 to make the mesh 220 contact the transfer substrate 100 and move to the mesh
  • the second side 222 of the 220 is such that the mesh 220 contacts the transfer substrate 100, the distance between the frame 210 and the substrate 100 is reduced by the second distance d2.
  • the step S105 "printing, when the squeegee 300 presses the mesh 220 from the middle portion 223 of the mesh 220 to make the mesh 220 contact the transfer substrate 100, and When the second side 222 of the mesh 220 is moved to contact the mesh 220 with the transfer substrate 100, the distance between the frame 210 and the substrate 100 is determined by the The second distance d2 decreases includes the following steps.
  • the squeegee 300 presses the mesh from the central portion 223 of the mesh 220 to cause the mesh 220 to contact the transfer substrate 100 and move to the mesh 220
  • the second side 222 is such that the mesh 220 contacts the printing substrate 100, the frame 210 and the printing substrate
  • the distance between the two is reduced by the second distance d1
  • the distance between the frame 210 and the substrate 100 is reduced by the second distance d2 to the first distance d1.
  • the squeegee 300 presses the mesh from the middle portion 223 of the mesh 220 to cause the mesh 220 to contact the transfer substrate 100, and move to
  • the second side 222 of the mesh 220 is such that the mesh 220 contacts the printing substrate 100
  • the distance between the frame 210 and the printing substrate 100 has the second distance d1
  • the distance between the frame 210 and the substrate 100 is reduced by the second distance d2 to the first distance d1"
  • the distance is uniformly reduced by the second distance d2 to the first distance d1.
  • step S105 when the squeegee 300 presses the mesh 220 from the middle portion 223 of the mesh 220, the mesh 220 contacts the transfer substrate 100, and moves to the When the second side 222 of the mesh 220 is used to contact the mesh 220 with the transfer substrate 100, the distance between the frame 210 and the substrate 100 is determined by the second distance d2
  • the reduction can be as follows.
  • the mesh 220 when printing, when the squeegee 300 presses the mesh 220 from the middle portion 223 of the mesh 220, the mesh 220 contacts the transfer substrate 100, and moves to the When the second side 222 of the mesh 220 is used to contact the mesh 220 with the substrate 100, the frame 210 is fixed, and the substrate 100 is moved to make the frame 210 and the chassis 210 The distance between the substrates 100 is reduced by the second distance d2.
  • the squeegee 300 presses the mesh 220 from the middle portion 223 of the mesh 220 to cause the mesh 220 to contact the transfer substrate 100 and move to
  • the frame 210 is moved to fix the substrate 100 so that the frame 210 and the frame 210 are The distance between the substrate substrates 100 is reduced by the second distance d2.
  • the squeegee when the first side of the mesh is printed to the second side of the mesh, the squeegee is located on the second side of the mesh and the squeegee is not Schematic diagram when pressing the mesh.
  • the distance between the frame 210 and the carrier substrate 100 is a first distance d1
  • the distance between the mesh 220 and the carrier substrate 100 is a first height h1 .
  • the mesh 220 is fixed to the frame 210 adjacent to the carrier substrate 100.
  • the first height h1 between the mesh 220 and the carrier substrate 100 is equal to the first distance d1 between the frame 210 and the substrate 100.
  • the squeegee 300 presses the mesh 220 from the second side 222 of the mesh 220 so that the mesh 220 contacts the substrate 100 to Information such as a pattern or a character of the second side 222 of the mesh 220 is transferred onto the substrate 100.
  • the scraping The plate 300 can press the mesh 220 all the time to bring the mesh 220 into contact with the substrate 100.
  • step S101, step S102 and step S103 in the present invention may be arbitrarily interchanged.
  • the frame 210 When the first side 221 of the mesh 220 is printed toward the second side 222 of the mesh 220, when the squeegee 300 is under When the first side 221 of the mesh 220 is pressed into contact with the substrate 100 and moved to the middle of the squeegee 300 to contact the mesh 220 with the substrate 100, the frame 210 The distance from the substrate 100 is gradually increased from a first distance to a second distance such that the first side 221 of the mesh 220 is meshed between the central portion 223 of the mesh 220 The compression set is more consistent, thereby improving the print quality of the mesh 220.
  • the frame 210 and the The distance between the printing substrates 100 is gradually reduced, so that the compression deformation of the mesh between the middle portion 223 of the mesh 220 and the second side 222 of the printing substrate 100 is more uniform, thereby improving The print quality of the mesh 220.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Screen Printers (AREA)
  • Printing Methods (AREA)

Abstract

一种网版印刷方法，包括：提供一承印基板（100）；提供一网版（200），网版（200）包括中空的框体（210）及网纱（220），框体（210）与承印基板（100）之间的距离为第一距离（d1），网纱（220）上涂布有涂料且网纱（220）四周固定在框体（210）上，其中，网纱（220）包括固定在框体（210）上且相对设置的第一侧边（221）及第二侧边（222）；提供一刮板（300），刮板（300）下压网纱（220）以使网纱（220）接触承印基板（100），以将网纱（220）上的涂料转印至承印基板（100）上；印刷时，刮板（300）自网纱（220）的第一侧边（221）移动至网纱（220）的第二侧边（222），当刮板（300）自网纱（220）的第一侧边（221）下压网纱（220）以使网纱（220）接触承印基板（100），并移动至网纱（220）的中部以使网纱（200）接触承印基板（100）时，框体（210）与承印基板（100）之间的距离由第一距离（d1）增大至第二距离（d2），本网版印刷方法能够提高印刷质量。

Description

网版印刷方法
本发明要求2014年9月22日递交的发明名称为“网版印刷方法”的申请号201410487004.7的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及平面显示领域，尤其涉及一种网版印刷方法。
背景技术
网版印刷方法在很多行业中得到了广泛的应用，尤其是在平面显示领域。通常，网版印刷方法是在网版上形成图案、文字等，在网版上涂布涂料，用刮板下压所述网版，使网版接触承印物(比如，玻璃基板等)，刮板在所述网版上平移将网版上的涂料转印在承印物上，以将图案、文字等转印到承印物上的一种方法。为了保障网版的寿命及印刷品质，印刷时，网版与承载物之间需要设置合适的距离。通常，网版是由网纱(比如，钢丝网)铺设平整之后固定在一个中空的框架上。因此，位于网版的周边区域的网纱比位于网版的中部区域的网纱更加紧绷，从而导致位于所述网版的周边区域的网纱比位于所述网版的中部区域的网纱可产生的压缩形变不一致，位于所述网版的周边区域的网纱的压缩形变更小，从而影响所述网纱整体的印刷质量。网版的周边区域和网版的中部区域同样需要被刮板下压接触到承印物，才能将网版的涂料转印到承印物上。随着印刷次数的增多，所述网版上的网纱容易松弛，从而使得网版的寿命变短。为了延长所述网版的寿命，通常将网版与承载物之间的距离减小，然而，减小网版与承载物的距离会使得网版的中心区域容易被涂料粘附在承载物，从而导致印刷异常，网版的印刷质量较差。
发明内容
本发明提供一种网版印刷方法，能够提高网版的印刷质量。
一方面，本发明提供了一种网版印刷方法，所述网版印刷方法包括：
提供一承印基板；
提供一网版，所述网版包括中空的框体及网纱，所述框体与所述承印基板之间的距离为第一距离，所述网纱上涂布有涂料且所述网纱四周固定在所述框体上，其中，所述网纱包括固定在所述框体上且相对设置的第一侧边及第二侧边；
提供一刮板，所述刮板下压所述网纱以使所述网纱接触所述承印基板，以将所述网纱上的涂料转印至所述承印基板上；
印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离。
在第一种实施方式中，印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小。
结合第一种实施方式，在第二种实施方式中，在所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小”中包括：
印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小时，所述框体与所述承印基板之间的距离由所述第二距离减小至所述第一距离。
结合第二种实施方式，在第三种实施方式中，在所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小至所述第一距离”中，所述框体与所述承印基板之间的距离由所述第二距离匀速减小至所述第一距离。
结合第一种实施方式，在第四种实施方式中，所述步骤“印刷时，当所述 刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小”具体为：
印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，固定所述框体，移动所述承印基板，以使所述框体与所述承印基板之间的距离由所述第二距离减小。
结合第一种实施方式中，在第五种实施方式中，所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小”具体为：
印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，移动所述框体，固定所述承印基板，以使所述框体与所述承印基板之间的距离由所述第二距离减小。
在第六种实施方式中，在所述步骤“印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离”包括：
印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离匀速增大至第二距离。
在第七种实施方式中，所述步骤“印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离”具体为：
印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，固定所述网版，移动所述承印基板，以使所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离。
在第八种实施方式中，所述步骤“印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离”具体为：
印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，移动所述网版，固定所述承印基板，以使所述网版与所述承印基板之间的距离由所述第一距离匀速增大至第二距离。
相较于现有技术，在本发明中，自所述网纱的所述第一侧边向所述网纱的所述第二侧边印刷时，当所述刮板下压所述网纱的第一侧边与所述承印基板接触，并移动至所述刮板的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由第一距离逐渐增大到第二距离，从而使得所述网纱的第一侧边至所述网纱的中部之间的网纱的压缩形变更加一致，从而提高了所述网纱的印刷质量。进一步地，当所述刮板下压所述网纱的中部接触所述承印基板，并移动至所述承印基板的第二侧边时，所述框体与所述承印基板之间的距离逐渐减小，从而使得所述网纱的所述中部至所述承印基板的所述第二侧边之间的网纱的压缩形变更加一致，从而提高了所述网纱的印刷质量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付 出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一较佳实施方式的网版印刷方法的流程图。
图2为本发明网版印刷方法所用到的工具侧视图。
图3为本发明图2中的网版和刮板的立体结构示意图。
图4为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第一侧边且刮板未按压网纱时的示意图。
图5为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第一侧边且刮板按压网纱时的示意图。
图6为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的中部且刮板未按压网纱时的示意图。
图7为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的中部且刮板按压网纱时的示意图。
图8为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第二侧边且刮板未按压网纱时的示意图。
图9为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第二侧边且刮板按压网纱时的示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1、图2和图3，图1为本发明一较佳实施方式的网版印刷方法的流程图。图2为本发明网版印刷方法所用到的工具侧视图。图3为本发明图2中的网版和刮板的立体结构示意图。所述网版印刷方法包括如下步骤。
步骤S101，提供一承印基板100。所述承印基板100可以为玻璃基板，也可以为其他材质的基板，所述网版印刷方法用于在所述承印基板100上印刷图案或者文字等。在本实施方式中，所述承印基板100的表面为平面，可以理解地，在其他实施方式中，所述承印基板100的表面也可以为曲面。
步骤S102，提供一网版200，所述网版200包括中空的框体210及网纱220，所述框体210与所述承印基板100之间的距离为第一距离d1，所述网纱220上涂布有涂料且所述网纱220四周固定在所述框体210上，其中，所述网纱220包括固定在所述框体210上且相对设置的第一侧边221及第二侧边222。在本实施方式中，所述网纱210为钢丝网，因而具有较长的使用寿命。所述网纱220上设有图案或者文字，所述网纱220与所述承印基板110接触时，涂布在所述网纱220上的涂料涂布到所述承印基板100上，从而使得所述网纱220上的图案或文字转印到所述承印基板100上。请一并参阅图4，所述网版200中的框体210与所述承印基板100的距离为第一距离d1，此时，所述网纱220与所述承印基板100之间的距离为第一高度h1。在本实施方式中，所述网纱220与所述承印基板100之间的所述第一高度h1大于所述框体210与所述承印基板100之间的所述第一距离d1。可以理解地，在其他实施方式中，所述网纱220固定在所述框体210邻近所述承印基板100的表面，此时，所述网纱220与所述承印基板100之间的所述第一高度h1等于所述框体210与所述承印基板100之间的所述第一距离d1。
步骤S103，提供一刮板300，所述刮板300下压所述网纱220以使所述网纱220接触所述承印基板100，以将所述网纱220的涂料转印至所述承印基板100上。
步骤S104，印刷时，所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的所述第二侧边222，当所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220以使所述网纱220接触所述承印基板100，并移动至所述网纱220的中部223以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板100之间的距离由所述第一距离d1增大至第二距离d2。
优选地，所述步骤S104“印刷时，所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的所述第二侧边222，当所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220以使所述网纱220接触所述承印基板100，并移动至所述网纱220的中部223以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板100之间的距离由所述第一距 离增大至第二距离d2”具体包括如下步骤。
印刷时，所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的所述第二侧边222，当所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220以使所述网纱220接触所述承印基板100，并移动至所述网纱220的中部223以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板100之间的距离由所述第一距离匀速增大至第二距离d2。
所述步骤S104“印刷时，所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的所述第二侧边222，当所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220以使所述网纱220接触所述承印基板100，并移动至所述网纱220的中部223以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板100之间的距离由所述第一距离d1增大至第二距离d2”可有如下实施方式。
在一实施方式中，印刷时，所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的所述第二侧边222，当所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220以使所述网纱220接触所述承印基板100，并移动至所述网纱220的中部223以使所述网纱220接触所述承印基板100时，固定所述网版210，移动所述承印基板100，以使所述框体210与所述承印基板100之间的距离由所述第一距离d1增大至第二距离d2。
在另一实施方式中，印刷时，所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的所述第二侧边222，当所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220以使所述网纱220接触所述承印基板100，并移动至所述网纱220的中部223以使所述网纱220接触所述承印基板100时，移动所述网版220，固定所述承印基板100，以使所述框体210与所述承印基板100之间的距离由所述第一距离d1增大至第二距离d2。
请一并参阅图5，图5为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第一侧边且刮板按压网纱时的示意图。如图5所示，所述刮板300自所述网纱220的所述第一侧边221下压所述网纱220，以使所述网纱220接触所述承印基板100。此时，所述框体210与所述承印基板100之间的距离不变，还是为第一距离d1。请一并参阅图6，图6 为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的中部且刮板未按压网纱时的示意图。所述框体210与所述承载基板100之间的距离为第二距离d2，所述网纱220与所述承载基板100之间距离为第二高度h2。所述第二距离d2大于所述第一距离d1。在本实施方式中，所述网纱220与所述承印基板100之间的第二高度h2大于所述框体210于所述承印基板100之间的第二距离d2。可以理解地，在其他实施方式中，所述网纱220固定在所述框体210邻近所述承印基板100的表面，此时，所述网纱220与所述承印基板100之间的所述第二高度h2等于所述框体210与所述承印基板100之间的所述第二距离d2。
请一并参阅图7，图7为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的中部且刮板按压网纱时的示意图。如图7所示，所述刮板300自所述网纱220的所述中部223下压所述网纱220，以使所述网纱220接触所述承印基板100，以将所述网纱220的中部223的图案或文字等信息转印至所述承印基板100上。在另一实施方式中，在所述刮板300自所述网纱220的所述第一侧边221移动至所述网纱220的中部223的过程中，所述刮板300可以一直按压所述网纱220，使所述网纱220一直与所述承印基板100相接触。
步骤S105，印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱220以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述转印基板100时，所述框体210与所述承印基板100之间的距离由所述第二距离d2减小。优选地，在所述步骤S105“印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱220以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述转印基板100时，所述框体210与所述承印基板100之间的距离由所述第二距离d2减小”中具体包括如下步骤。
印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板 100之间的距离有所述第二距离d1减小时，所述框体210与所述承印基板100之间的距离由所述第二距离d2减小至所述第一距离d1。
优选地，在所述步骤“印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板100之间的距离有所述第二距离d1减小时，所述框体210与所述承印基板100之间的距离由所述第二距离d2减小至所述第一距离d1”中，所述框体210与所述承印基板100之间的距离由所述第二距离d2匀速减小至所述第一距离d1。
在所述步骤S105“印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱220以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述转印基板100时，所述框体210与所述承印基板100之间的距离由所述第二距离d2减小”可有以下实施方式。
在一实施方式中，印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱220以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述承印基板100时，固定所述框体210，移动所述承印基板100，以使所述框体210与所述承印基板100之间的距离由所述第二距离d2减小。
在另一实施方式中，印刷时，当所述刮板300自所述网纱220的中部223下压所述网纱220以使所述网纱220接触所述转印基板100，并移动至所述网纱220的所述第二侧边222以使所述网纱220接触所述承印基板100时，移动所述框体210，固定所述承印基板100，以使所述框体210与所述承印基板100之间的距离由所述第二距离d2减小。
请一并参阅图8，其为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第二侧边且刮板未按压网纱时的示意图。如图8所示，所述框体210与所述承载基板100之间的距离为第一距离d1，所述网纱220与所述承载基板100之间的距离为第一高度h1。可以理解地，在其他实施方式中，所述网纱220固定在所述框体210邻近所述承载基板100 的表面，此时，所述网纱220与所述承载基板100之间的所述第一高度h1等于所述框体210与所述承印基板100之间的所述第一距离d1。
请一并参阅图9，其为本发明一较佳实施方式中自网纱的第一侧边向网纱的第二侧边印刷时，刮板位于网纱的第二侧边且刮板按压网纱时的示意图。如图9所示，所述刮板300自所述网纱220的所述第二侧边222下压所述网纱220，以使所述网纱220接触所述承印基板100，以将所述网纱220的所述第二侧边222的图案或者文字等信息转印至所述承印基板100上。在另一实施方式中，在所述刮板300自所述网纱220的所述中部223移动至所述网纱220的所述网纱220的所述第二侧边222时，所述刮板300可以一直按压所述网纱220，使所述网纱220与所述承印基板100相接触。
可以理解地，本发明中网版印刷方法中的各个步骤并不是用于限定本发明的实际操作顺序。举例而言，本发明中的步骤S101，步骤S102及步骤S103之间的顺序可以任意互换。
相较于现有技术，在本发明中，自所述网纱220的所述第一侧边221向所述网纱220的所述第二侧边222印刷时，当所述刮板300下压所述网纱220的第一侧边221与所述承印基板100接触，并移动至所述刮板300的中部以使所述网纱220接触所述承印基板100时，所述框体210与所述承印基板100之间的距离由第一距离逐渐增大到第二距离，从而使得所述网纱220的第一侧边221至所述网纱220的中部223之间的网纱的压缩形变更加一致，从而提高了所述网纱220的印刷质量。进一步地，当所述刮板300下压所述网纱220的中部223接触所述承印基板100，并移动至所述承印基板100的第二侧边222时，所述框体210与所述承印基板100之间的距离逐渐减小，从而使得所述网纱220的所述中部223至所述承印基板100的所述第二侧边222之间的网纱的压缩形变更加一致，从而提高了所述网纱220的印刷质量。
虽然本发明以优选实施方式揭示如上，然其并非用以限定本发明，任何本领域技术人员，在不脱离本发明的精神和范围内，当可做各种的变化，这些依据本发明精神所做的变化，都应包含在本发明所要求的保护范围之内。

Claims (9)

  1. 一种网版印刷方法，其特征在于，所述网版印刷方法包括：
    提供一承印基板；
    提供一网版，所述网版包括中空的框体及网纱，所述框体与所述承印基板之间的距离为第一距离，所述网纱上涂布有涂料且所述网纱四周固定在所述框体上，其中，所述网纱包括固定在所述框体上且相对设置的第一侧边及第二侧边；
    提供一刮板，所述刮板下压所述网纱以使所述网纱接触所述承印基板，以将所述网纱上的涂料转印至所述承印基板上；
    印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离。
  2. 如权利要求1所述的网版印刷方法，其特征在于，印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小。
  3. 如权利要求2所述的网版印刷方法，其特征在于，在所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小”中包括：
    印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小时，所述框体与所述承印基板之间的距离由所述第二距离减小至所述第一距离。
  4. 如权利要求3所述的网版印刷方法，其特征在于，在所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小至所述第一距离”中，所述框体与所述承印基板之间的距离由所述第二距离匀速减小至所述第一距离。
  5. 如权利要求2所述的网版印刷方法，其特征在于，所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小”具体为：
    印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，固定所述框体，移动所述承印基板，以使所述框体与所述承印基板之间的距离由所述第二距离减小。
  6. 如权利要求2所述的网版印刷方法，其特征在于，所述步骤“印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第二距离减小”具体为：
    印刷时，当所述刮板自所述网纱的中部下压所述网纱以使所述网纱接触所述转印基板，并移动至所述网纱的所述第二侧边以使所述网纱接触所述承印基板时，移动所述框体，固定所述承印基板，以使所述框体与所述承印基板之间的距离由所述第二距离减小。
  7. 如权利要求1所述的网版印刷方法，其特征在于，在所述步骤“印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离”包括：
    印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离匀速增大至第二距离。
  8. 如权利要求1所述的网版印刷方法，其特征在于，所述步骤“印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离”具体为：
    印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，固定所述网版，移动所述承印基板，以使所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离。
  9. 如权利要求1所述的网版印刷方法，其特征在于，所述步骤“印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，所述框体与所述承印基板之间的距离由所述第一距离增大至第二距离”具体为：
    印刷时，所述刮板自所述网纱的所述第一侧边移动至所述网纱的所述第二侧边，当所述刮板自所述网纱的第一侧边下压所述网纱以使所述网纱接触所述承印基板，并移动至所述网纱的中部以使所述网纱接触所述承印基板时，移动所述网版，固定所述承印基板，以使所述网版与所述承印基板之间的距离由所述第一距离匀速增大至第二距离。
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