CN104608513A - Screen printing method, screen structure and pressing marker - Google Patents
Screen printing method, screen structure and pressing marker Download PDFInfo
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- CN104608513A CN104608513A CN201510080814.5A CN201510080814A CN104608513A CN 104608513 A CN104608513 A CN 104608513A CN 201510080814 A CN201510080814 A CN 201510080814A CN 104608513 A CN104608513 A CN 104608513A
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Abstract
The invention relates to the technical field of screen printing and discloses a screen printing method. The screen printing method includes: providing a screen, wherein the screen comprises a screen frame and screen cloth stretching tight on the screen frame, the screen cloth is provided with a pressing figure mold forming a plurality of grids by cross arrangement of a plurality of parallel warps and a plurality of parallel wefts, and the warps and the wefts are mutually vertical; providing a substrate, attaching the screen to the upper surface of the substrate, applying coating materials on the position corresponding to the pressing figure mold of the screen cloth, and using a scraper to press down to abut against the screen cloth prior to moving the scraper so as to enable the coating materials to be distributed according to the pressing figure mold, wherein the latitude line of the scraper and the pressing figure mold forms a first included angle, the longitude line of the scraper and the pressing figure mold forms a second included angle, and neither the first included angle or the second included angle is zero degree; removing the screen to form printing patterns on the substrate. The invention further provides a screen structure and a pressing marker, and reject ratio of screen printing can be reduced.
Description
Technical field
The present invention relates to screen printing technology field, particularly relate to a kind of half-tone screen printing method, screen structure and imprinting apparatus.
Background technology
In the production process of OLED screen curtain (Organic Light Emitting Diode), need to be formed at the upper coating multiple material of substrate (back-panel glass), wherein in the process forming mask layer, use half tone to impress the printed patterns required for being formed.Half tone comprises screen frame and pulling-over at the screen cloth of screen frame, screen cloth has impression artwork, and the parallel cross arrangement that impression artwork is paralleled by many warps paralleled and many forms multiple grid, and warp and parallel are mutually vertical; Impression artwork is generally made up of glass cement, has completely cut off the immersion of extraneous oxygen and moisture, extruding coating material preferably, with the high brightness rate of the high life rate and screen that improve OLED screen curtain.
(English: Stage), half tone and print head mechanism, print head mechanism is provided with scraper to the base station that the imprinting apparatus of prior art comprises for supporting substrate.Prior art is in moulding process, and half tone fits on substrate, coated glass glue on the screen cloth of half tone, and scraper pressing is held in the screen cloth of half tone, and movable scraper, substrate impresses out required printed patterns.The scraper of prior art parallels with latitude (warp) line of impression artwork, in moulding process, scraper contacts with many warps (latitude) line simultaneously, the pressure that each warp (latitude) line is subject to is more consistent, and scraper moves from the side of the parallel of impression artwork to opposite side, scraper and parallel bump contact, make the parallel both sides unbalance stress of impression artwork, the pattern of the parallel both sides of the printed patterns formed is uneven, and printed patterns fraction defective is high.As occur burr or on one side smooth, another side there is fuzzy problem, these problems may reduce the high life rate of OLED and the high brightness rate of screen.In addition, the burr that printed patterns both sides are uneven also can affect follow-up laminating with evaporation substrate and laser sintered quality.
Summary of the invention
(1) technical problem that will solve
The object of the invention is how to provide a kind of half-tone screen printing method, screen structure and the imprinting apparatus that can reduce printed patterns fraction defective.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of half-tone screen printing method, this half-tone screen printing method comprises the following steps:
There is provided a half tone, wherein, half tone comprises a screen frame and a pulling-over in the screen cloth of screen frame, and screen cloth has impression artwork, and the parallel cross arrangement that impression artwork is paralleled by many warps paralleled and many forms multiple grid, and warp and parallel are mutually vertical;
One substrate is provided, half tone is fitted in the upper surface of substrate, at the impression artwork relevant position Coating material of screen cloth, use scraper to press down and support screen cloth and movable scraper, coating material is made to comply with the distribution of impression artwork, wherein scraper is the first angle with the parallel of impression artwork, and scraper is the second angle with the warp of impression artwork, and the first angle and the second angle are not all 0 degree; And
Remove described half tone, to form printed patterns on substrate.
Wherein, described first angle is 10 ~ 80 degree.
Wherein, described first angle is 45 degree.
Wherein, screen frame comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and longitudinal moulding is mutually vertical with horizontal moulding; Have parallel angle between parallel and horizontal moulding, parallel angle is equal with the first angle; Scraper parallels with horizontal moulding, and longitudinally the bearing of trend of moulding moves.
Wherein, scraper parallels with the diagonal of grid.
The present invention also provides a kind of screen structure, comprising: a screen frame and a screen cloth, and described screen frame comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and described longitudinal moulding is mutually vertical with horizontal moulding; Described screen cloth pulling-over is in described screen frame; Described screen cloth is provided with impression artwork, and the parallel cross arrangement that described impression artwork is paralleled by many warps paralleled and many forms multiple grid, and described warp and parallel are mutually vertical; Described parallel and described horizontal moulding have parallel angle.
Wherein, described impression artwork is made up of glass cement.
Wherein, described screen frame is made up of aluminium alloy.
The present invention also provides a kind of imprinting apparatus, and comprise frame and be installed on the base station of described frame, half tone and print head mechanism, the below of described half tone is located at by described base station, for placing substrate to be imprinted; Described print head mechanism is located at the top of described half tone; Described print head mechanism comprises scraper and at least one can move up and down and drive described scraper to move, and described scraper is pressed against on described half tone with a constant pressure to carry out the cutter driven unit impressed; Described half tone comprises: a screen frame and a screen cloth, and described screen frame comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and described longitudinal moulding is mutually vertical with horizontal moulding; Described screen cloth pulling-over is in described screen frame; Described screen cloth has impression artwork, and the parallel cross arrangement that described impression artwork is paralleled by many warps paralleled and many forms multiple grid, and described warp and parallel are mutually vertical; Described parallel and described horizontal moulding have parallel angle; Described base station comprises loading floor and the carrying lifting assembly for driving described loading floor to be elevated; This imprinting apparatus is also provided with rotating drive mechanism, for driving described loading floor to rotate, and makes described substrate corresponding with the impression artwork of described half tone.
Wherein, this imprinting apparatus also comprises coated plate mechanism, and described coated plate mechanism is located at the top of described half tone, for coating material is coated described screen cloth.
Wherein, described cutter driven unit comprises gantry-travelling frame, mobile power unit and scraper lifting unit, described gantry-travelling frame is installed on described longitudinal moulding movably, described mobile power unit is connected with described gantry-travelling frame, described gantry-travelling frame is driven to move, described scraper lifting unit is located at described gantry-travelling frame, moves up and down for driving described scraper.
(3) beneficial effect
Half-tone screen printing method provided by the invention, when printing, the parallel of scraper and impression artwork and warp are all in an angle, the all not overall and scraper into contact of parallel and warp, parallel or warp both sides are avoided to be subject to not identical pressure, solve prior art and produce the uneven problem of burr or both sides, reduce the fraction defective of screen painting.
Screen structure provided by the invention, parallel and the horizontal moulding of impression artwork have parallel angle, and longitudinal moulding is as printing track, and scraper moves stable, impresses effective, reduces the fraction defective of screen painting.
Imprinting apparatus provided by the invention, the basis of present technology changes screen structure and sets up a rotating drive mechanism driving loading floor to rotate, reforming equipment with low cost; Structure is simple, and contraposition is accurate; Scraper moves stable, reduces the fraction defective of screen painting.
Accompanying drawing explanation
Fig. 1 is the front view of screen structure embodiment of the present invention;
Fig. 2 is the top view of the embodiment of imprinting apparatus of the present invention;
Fig. 3 is the sectional view of the embodiment of imprinting apparatus of the present invention;
Fig. 4 is the stereogram of the embodiment loading floor of imprinting apparatus of the present invention;
Fig. 5 is the sectional view of the another embodiment of imprinting apparatus of the present invention.
In figure, 10: half tone; 11: screen frame; 111: horizontal moulding; 112: longitudinal moulding; 12: screen cloth; 13: impression artwork; 131: parallel; 132: warp; 20: print head mechanism; 21: scraper; 22: cutter driven unit; 221: gantry-travelling frame; 222: scraper lifting unit; 30: base station; 31: loading floor; 311: alignment pin; 32: carrying lifting assembly; 40: frame; 50: substrate; 60: rotary drive mechanism.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following instance for illustration of the present invention, but is not used for limiting the scope of the invention.
Half-tone screen printing method of the present invention, this half-tone screen printing method comprises the following steps:
Step 1, provides a half tone, wherein, half tone comprises a screen frame and a pulling-over in the screen cloth of screen frame, screen cloth has impression artwork, and the parallel cross arrangement that impression artwork is paralleled by many warps paralleled and many forms multiple grid, and warp and parallel are mutually vertical.
Step 2, one substrate is provided, half tone is fitted in the upper surface of substrate, at the impression artwork relevant position Coating material of screen cloth, use scraper to press down and support screen cloth and movable scraper, make coating material comply with the distribution of impression artwork, wherein scraper is the first angle with the parallel of impression artwork, scraper is the second angle with the warp of impression artwork, and the first angle and the second angle are not all 0 degree.Due to mutually vertical between warp and parallel, scraper and warp, parallel surround triangular structure, and namely the first angle and the second angle sum are 90 degree, i.e. the first angle and the second angle complementary angle each other.Wherein, the first angle is preferably 10 ~ 80 degree, especially, and the first angle preferably 10 degree, 20 degree, 30 degree, 45 degree, 60 degree, 70 degree and 80 degree.First angle is 45 degree, and when the first angle is 45 degree, the adjacent both sides of grid are equal with the contact surface of scraper, suffered pressure uniform.
Step 3, removes described half tone, to form printed patterns on substrate.
Preferably, the screen frame of the half tone that half-tone screen printing method of the present invention uses comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and longitudinal moulding is mutually vertical with horizontal moulding, and namely screen frame is rectangle frame structure.There is between parallel and horizontal moulding parallel angle.Scraper parallels with horizontal moulding, and longitudinally the bearing of trend of moulding moves, and namely the first angle is equal with parallel angle.
Further, scraper parallels with the diagonal of grid.First angle is the long limit of arctan grid minor face/grid or its complementary angle.When grid quadrate, the first angle and the second angle are 45 degree.
Half-tone screen printing method of the present invention, when printing, scraper and the impression parallel of artwork and warp all in an angle, all not overall and scraper into contact of parallel and warp, avoid parallel or warp both sides to be subject to not identical pressure, solve prior art and produce the uneven problem of burr or both sides.
With reference to shown in Fig. 1, the invention provides a kind of screen structure, this screen structure is applicable to above-mentioned half-tone screen printing method.This half tone 10 structure comprises: screen frame 11 and a screen cloth 12, and screen frame 11 comprises two longitudinal mouldings paralleled 112 and two horizontal mouldings 111 paralleled, and longitudinal moulding 112 is mutually vertical with horizontal moulding 111.Screen cloth 12 pulling-over is in screen frame 11.Screen cloth is provided with impression artwork 13, and impression artwork 13 forms multiple grid 133 by many warps paralleled 132 and many parallel paralleled 131 cross arrangement, and warp 132 is mutually vertical with parallel 131.Parallel 131 and horizontal moulding 111 have parallel angle.Impression artwork 13 is preferably made up of glass cement, and screen frame 11 is preferably made up of aluminium alloy.Parallel angle of the present invention refers to the angle intersected to form between the extended line of parallel 131 and the extended line of horizontal moulding 111.
The invention provides a kind of imprinting apparatus, as shown in Figures 2 and 3, is a kind of specific embodiment of imprinting apparatus, and imprinting apparatus comprises frame 40 and is installed on the base station 30 of frame 40, half tone 10 and print head mechanism 20.The below of half tone 10 is located at by base station 30, for placing substrate 50 to be imprinted.Print head mechanism 20 is located at the top of half tone 10.Print head mechanism 20 comprises scraper 21 and at least one can move up and down and drive scraper 21 to move, and scraper 21 is pressed against on half tone 10 with a constant pressure to carry out the cutter driven unit 22 impressed.Half tone 10 comprises: screen frame 11 and a screen cloth 12, and screen frame 11 comprises two longitudinal mouldings paralleled 112 and two horizontal mouldings 111 paralleled, and longitudinal moulding 112 is mutually vertical with horizontal moulding 111.Screen cloth 12 pulling-over is in screen frame 11.Screen cloth is provided with impression artwork 13, and impression artwork 13 forms multiple grid 133 by many warps paralleled 132 and many parallel paralleled 131 cross arrangement, and warp 132 is mutually vertical with parallel 131; Parallel 131 and horizontal moulding 111 have parallel angle.Base station 30 comprises loading floor 31 and the carrying lifting assembly 32 for driving loading floor 31 to be elevated.With reference to shown in Fig. 4, loading floor 31 adopts vacuum adsorption table, and loading floor 31 is provided with multiple telescopic alignment pin 311, for receiving and holding up substrate 50.This imprinting apparatus is also provided with rotating drive mechanism 60, for driving loading floor 31 to rotate, and makes substrate 50 corresponding with the impression artwork 13 of half tone 10.
In the present embodiment, with reference to shown in Fig. 3, loading floor 31 is arranged on carrying lifting assembly 32, and carrying lifting assembly 32 is installed on rotating drive mechanism 60, and rotating drive mechanism 60 drives whole base station 30 to rotate, thus drives loading floor 31 to rotate.Loading floor 31, carrying lifting assembly 32 and rotating drive mechanism 60 be chosen as the structure that those skilled in the art can carry out selecting according to actual needs.Such as, carrying lifting assembly 32 adopts lift cylinder, and loading floor 31 is installed on the piston rod of lift cylinder, and rotating drive mechanism 60 adopts direct-driving motor, lift cylinder is installed on the axle of direct-driving motor, and direct-driving motor drives whole base station 30 to rotate.
Further, this imprinting apparatus also comprises coated plate mechanism (scheming not shown), and coated plate mechanism is located at the top of half tone 10, for coating material is coated screen cloth 12.Coated plate mechanism selects as those skilled in the art can carry out the mechanism selected according to actual needs, does not repeat them here.
Further, cutter driven unit 22 comprises gantry-travelling frame 221, mobile power unit (scheming not shown) and scraper lifting unit 222, gantry-travelling frame 221 is installed on longitudinal moulding 112 movably, mobile power unit is connected with gantry-travelling frame 221, gantry-travelling frame 221 is driven to move, scraper lifting unit 222 is located at gantry-travelling frame 221, moves up and down for driving scraper 21.Scraper lifting unit 222 is also the structure that those skilled in the art can select as required, such as, scraper lifting unit 222 adopts a telescopic cylinder, scraper 21 is arranged on the piston rod of telescopic cylinder, the piston rod of telescopic cylinder is flexible drives scraper 21 lifting moving, and can support on the screen cloth 12 of half tone 10 with a constant pressure.
With reference to shown in Fig. 5, for the sectional view of another embodiment of imprinting apparatus of the present invention, this embodiment is substantially identical with a upper embodiment, and institute's difference is: in the present embodiment, rotary drive mechanism 60 is connected with loading floor 31, drives loading floor 31 to rotate.Concrete, carrying lifting assembly 32 adopts lift cylinder, rotating drive mechanism 60 adopts direct-driving motor, rotating drive mechanism 60 is installed on the piston rod of lift cylinder, loading floor 31 is installed on the axle of direct-driving motor, direct-driving motor drives loading floor 31 to rotate, and lift cylinder drives loading floor 31 and rotating drive mechanism 60 lifting moving.
Imprinting apparatus of the present invention, the basis of present technology changes screen structure and sets up a rotating drive mechanism driving loading floor to rotate, reforming equipment with low cost; Structure is simple, and contraposition is accurate.
Comprise the following steps when using imprinting apparatus of the present invention to carry out screen painting:
(1) also alignment base plate is received.The alignment pin 31150 of loading floor 31 stretches out, and substrate is placed on alignment pin 311, and then alignment pin 311 declines, and carries out contraposition to substrate 50, and after contraposition completes, loading floor 31 pairs of substrates 50 carry out vacuum suction.
(2) half tone and substrate contraposition.Rotary drive mechanism 60 drives loading floor 31 to rotate, and makes substrate 50 corresponding with impression artwork 13, then carries lifting assembly 32 and drives loading floor 31 to rise, substrate 50 and half tone 10 are fitted.
(3) screen painting.Use scraping plate mechanism at the impression artwork 13 relevant position Coating material of screen cloth 12, cutter driven unit 22 drives scraper 21 to press down and supports half tone 10, and moves with constant pressure, makes coating material comply with impression artwork 13 and distributes.
(4) base station resets.Carrying lifting assembly 32 drives loading floor to decline, and rotary drive mechanism 60 drives loading floor 31 to reversely rotate, and is returned to home position.
(5) substrate is removed.Remove vacuum suction, alignment pin 311 stretches out, and holds up substrate, removes the substrate after printing 50.
(6) repeat step (1)-(5), complete the printing of next substrate.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a half-tone screen printing method, is characterized in that, this half-tone screen printing method comprises the following steps:
There is provided a half tone, wherein, half tone comprises a screen frame and a pulling-over in the screen cloth of screen frame, and screen cloth has impression artwork, and the parallel cross arrangement that impression artwork is paralleled by many warps paralleled and many forms multiple grid, and warp and parallel are mutually vertical;
One substrate is provided, half tone is fitted in the upper surface of substrate, at the impression artwork relevant position Coating material of screen cloth, use scraper to press down and support screen cloth and movable scraper, coating material is made to comply with the distribution of impression artwork, wherein scraper is the first angle with the parallel of impression artwork, and scraper is the second angle with the warp of impression artwork, and the first angle and the second angle are not all 0 degree; And
Remove described half tone, to form printed patterns on substrate.
2. half-tone screen printing method as claimed in claim 1, it is characterized in that, described first angle is 10 ~ 80 degree.
3. half-tone screen printing method as claimed in claim 2, it is characterized in that, described first angle is 45 degree.
4. half-tone screen printing method as claimed in claim 1, it is characterized in that, screen frame comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and longitudinal moulding is mutually vertical with horizontal moulding; Have parallel angle between parallel and horizontal moulding, parallel angle is equal with the first angle; Scraper parallels with horizontal moulding, and longitudinally the bearing of trend of moulding moves.
5. half-tone screen printing method as claimed in claim 1, it is characterized in that, scraper parallels with the diagonal of grid.
6. a screen structure, is characterized in that, comprising: a screen frame and a screen cloth, and described screen frame comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and described longitudinal moulding is mutually vertical with horizontal moulding; Described screen cloth pulling-over is in described screen frame; Described screen cloth is provided with impression artwork, and the parallel cross arrangement that described impression artwork is paralleled by many warps paralleled and many forms multiple grid, and described warp and parallel are mutually vertical; Described parallel and described horizontal moulding have parallel angle.
7. screen structure as claimed in claim 6, it is characterized in that, described impression artwork is made up of glass cement.
8. screen structure as claimed in claim 6, it is characterized in that, described screen frame is made up of aluminium alloy.
9. an imprinting apparatus, is characterized in that, comprise frame and be installed on the base station of described frame, half tone and print head mechanism, the below of described half tone is located at by described base station, for placing substrate to be imprinted; Described print head mechanism is located at the top of described half tone; Described print head mechanism comprises scraper and at least one can move up and down and drive described scraper to move, and described scraper is pressed against on described half tone with a constant pressure to carry out the cutter driven unit impressed; Described half tone comprises: a screen frame and a screen cloth, and described screen frame comprises two longitudinal mouldings paralleled and two horizontal mouldings paralleled, and described longitudinal moulding is mutually vertical with horizontal moulding; Described screen cloth pulling-over is in described screen frame; Described screen cloth has impression artwork, and the parallel cross arrangement that described impression artwork is paralleled by many warps paralleled and many forms multiple grid, and described warp and parallel are mutually vertical; Described parallel and described horizontal moulding have parallel angle; Described base station comprises loading floor and the carrying lifting assembly for driving described loading floor to be elevated; This imprinting apparatus is also provided with rotating drive mechanism, for driving described loading floor to rotate, and makes described substrate corresponding with the impression artwork of described half tone.
10. imprinting apparatus as claimed in claim 9, it is characterized in that, this imprinting apparatus also comprises coated plate mechanism, and described coated plate mechanism is located at the top of described half tone, for coating material is coated described screen cloth.
11. imprinting apparatus as claimed in claim 9, it is characterized in that, described cutter driven unit comprises gantry-travelling frame, mobile power unit and scraper lifting unit, described gantry-travelling frame is installed on described longitudinal moulding movably, described mobile power unit is connected with described gantry-travelling frame, drive described gantry-travelling frame to move, described scraper lifting unit is located at described gantry-travelling frame, moves up and down for driving described scraper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510080814.5A CN104608513A (en) | 2015-02-13 | 2015-02-13 | Screen printing method, screen structure and pressing marker |
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| CN201510080814.5A CN104608513A (en) | 2015-02-13 | 2015-02-13 | Screen printing method, screen structure and pressing marker |
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| CN201510080814.5A Pending CN104608513A (en) | 2015-02-13 | 2015-02-13 | Screen printing method, screen structure and pressing marker |
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| CN105098102A (en) * | 2015-08-13 | 2015-11-25 | 京东方科技集团股份有限公司 | Device and method for printing glass cement |
| CN105098100A (en) * | 2015-06-24 | 2015-11-25 | 京东方科技集团股份有限公司 | OLED (Organic Light Emitting Diode) display device, manufacturing method thereof, display panel and display device |
| CN106004136A (en) * | 2016-05-18 | 2016-10-12 | 京东方科技集团股份有限公司 | Screen printing method and pressing marker |
| CN109319537A (en) * | 2018-09-27 | 2019-02-12 | 饶银娥 | It is a kind of can automatically paper collecting printing machine |
| CN109358437A (en) * | 2018-09-12 | 2019-02-19 | 东莞通华液晶有限公司 | A kind of etch tool and technique applied to RTP |
| CN109753194A (en) * | 2017-11-06 | 2019-05-14 | 日本航空电子工业株式会社 | The production method of touch panel |
| CN110757941A (en) * | 2019-10-25 | 2020-02-07 | 杭州友成电子有限公司 | Lean screen printing plate manufacturing process |
| CN111842015A (en) * | 2019-04-28 | 2020-10-30 | 江苏长电科技股份有限公司 | Printing apparatus and printing method |
| CN112654478A (en) * | 2018-09-06 | 2021-04-13 | 弗朗茨卡尔纽丁巴萨尔特沃克有限责任两合公司 | Device for manufacturing concrete building blocks |
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| CN112654478A (en) * | 2018-09-06 | 2021-04-13 | 弗朗茨卡尔纽丁巴萨尔特沃克有限责任两合公司 | Device for manufacturing concrete building blocks |
| CN109358437A (en) * | 2018-09-12 | 2019-02-19 | 东莞通华液晶有限公司 | A kind of etch tool and technique applied to RTP |
| CN109319537A (en) * | 2018-09-27 | 2019-02-12 | 饶银娥 | It is a kind of can automatically paper collecting printing machine |
| CN111842015A (en) * | 2019-04-28 | 2020-10-30 | 江苏长电科技股份有限公司 | Printing apparatus and printing method |
| CN110757941A (en) * | 2019-10-25 | 2020-02-07 | 杭州友成电子有限公司 | Lean screen printing plate manufacturing process |
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Application publication date: 20150513 |