CN111142330A - Screen printing plate processing method for preventing screen penetration - Google Patents
Screen printing plate processing method for preventing screen penetration Download PDFInfo
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- CN111142330A CN111142330A CN202010069399.4A CN202010069399A CN111142330A CN 111142330 A CN111142330 A CN 111142330A CN 202010069399 A CN202010069399 A CN 202010069399A CN 111142330 A CN111142330 A CN 111142330A
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- screen
- printing plate
- layer
- screen printing
- photosensitive
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- 238000007650 screen-printing Methods 0.000 title claims abstract description 62
- 230000035515 penetration Effects 0.000 title claims abstract description 14
- 238000003672 processing method Methods 0.000 title claims abstract description 7
- 239000003292 glue Substances 0.000 claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000003892 spreading Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 13
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000007790 scraping Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0035—Multiple processes, e.g. applying a further resist layer on an already in a previously step, processed pattern or textured surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Screen Printers (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
The invention provides a method for processing a screen printing plate capable of preventing screen penetration. The processing method of the anti-threading screen printing plate comprises the steps of fixing a screen by using a screen frame; scraping and printing a first layer of photosensitive glue on the gauze and drying; exposing and developing the first layer of photosensitive resist; scraping and printing a second layer of photosensitive glue on the first layer of photosensitive glue and baking the second layer of photosensitive glue; sequentially scraping three layers of photosensitive adhesives, a fourth layer of photosensitive adhesives and a fifth layer of photosensitive adhesives on the back surface of the screen printing plate and baking; exposing and developing the five layers of photosensitive resist; and finishing the manufacture of the screen printing plate. Compared with the prior art, the method for processing the screen printing plate capable of preventing the screen printing plate from penetrating through can improve the hardness of the first layer of photosensitive glue, prevent the screen printing plate from being penetrated through by impurities in printing ink in the screen printing process, ensure the appearance in a screen window and prolong the service life of the screen printing plate.
Description
Technical Field
The invention relates to the technical field of electronic products, in particular to a method for processing a screen printing plate capable of preventing screen penetration.
Background
The silk screen printing is a key process in the touch screen process, and the frame, the frame routing and the insulating oil all need to adopt the silk screen printing technology to transfer the required patterns to the surface of the material through the screen printing plate. With the development of the screen printing technology, the screen printing technology is widely applied to various industries. In the touch screen industry, the development route of the silk screen technology is almost from wide to narrow wiring, and the film layer is from thick to thin. Because the frame of the mobile phone is required to be narrower and narrower, even without the frame, the thickness of the whole mobile phone is required to be thinner and thinner, even to the thickness of only one piece of paper. Touch-sensitive screen frame is walked the line and is narrowed, the rete thickness of corresponding silk screen printing is in order to follow the attenuate ability line, the thickness on silk screen printing rete is too thick, just permeate easily, in case the infiltration line distance will be submerged the short circuit, silk screen printing rete thickness is thin on the contrary, just can not permeate, the line distance just can not be submerged, just can not the short circuit, but just require its photosensitive glue thickness to be thinner to the used half tone of silk screen printing, non-printing district is very easily penetrated by printing ink impurity in the inside after the half tone photosensitive glue thickness attenuation, lead to the oil leak, form the isolated island on the material surface, influence the appearance quality, seem like the dirt point, the foreign matter.
Disclosure of Invention
The invention aims to provide a screen printing plate processing method capable of preventing screen penetration, which can obtain thin and uniform film thickness and prevent screen printing plate photosensitive glue from being penetrated.
The technical scheme of the invention is as follows: the processing method of the screen printing plate for preventing the screen from passing through comprises the following steps:
providing a screen frame and a gauze, tensioning the gauze to a required tension, and fixing the gauze by using the screen frame;
step two, providing water-based photosensitive glue, a glue spreading knife and a coating machine, pouring the water-based photosensitive glue into a groove of the glue spreading knife, installing the glue spreading knife on a machine table of the coating machine, starting the coating machine, scraping and printing a first layer of photosensitive glue on the gauze according to preset parameters, and drying the gauze;
step three, providing a first film photomask for manufacturing patterns and an exposure machine, installing the first film photomask on a machine table upper frame of the exposure machine, and installing a screen printing plate coated with a first layer of photosensitive glue on a machine table lower frame of the exposure machine, wherein the first film photomask and the screen printing plate are arranged up and down; opening the exposure machine and developing;
step four, the screen printing plate is placed on a coating machine, the step two is repeated, and a second layer of photosensitive glue is scraped and printed on the first layer of photosensitive glue and dried;
step five, repeating the step two, and sequentially coating a third layer of photosensitive glue, a fourth layer of photosensitive glue and a fifth layer of photosensitive glue on the side, away from the first layer of photosensitive glue, of the gauze and drying the gauze;
placing the screen printing plate coated with the five layers of photosensitive adhesives on a machine table lower frame of an exposure machine, and providing a second film photomask with patterns; installing the second film photomask on a machine table upper frame of the exposure machine, wherein the second film photomask and the screen are arranged up and down; opening the exposure machine and developing;
and sixthly, finishing the manufacturing of the screen printing plate.
In the scheme, an exposure process (step three) is additionally arranged after the first layer of photosensitive resist in the step two is processed, so that the hardness of the first layer of photosensitive resist can be increased, the blocking strength of the first layer of photosensitive resist is increased, the photosensitive resist in a non-printing area of the screen printing plate is prevented from being penetrated and penetrated by ink impurities of a screen printing station of the next step, and the purpose of preventing screen penetration is achieved.
Preferably, the light source size of the second film photomask is larger than that of the first film photomask, and after the fifth step, the first layer of photosensitive resist is wrapped in the second layer of photosensitive resist.
Preferably, in the first step, a net tensioning machine is provided to tension the gauze to a required tension, glue is applied to the periphery of the screen frame, the screen frame is adhered to the tensioned gauze, and after the gauze is solidified by gelling, the excess gauze outside the screen frame is cut off.
Preferably, the mesh frame is an aluminum mesh frame with the size of 95 x 95 cm.
Preferably, the preset parameters in the second step include a gluing angle, pressure and speed.
Preferably, in the third step, exposure is performed according to preset parameters, after exposure is completed, the screen is washed and dried, the first layer of photosensitive resist leaves a part which is irradiated by light on the screen, and a part which is not irradiated by light is washed away by water.
Preferably, the exposure of the third step and the exposure of the fifth step need to be performed according to the preset exposure energy and time.
Preferably, in the third step and the fifth step, the first film photomask and the second film photomask need to be subjected to dust removal treatment before use.
Preferably, the dust removing treatment is to wipe the front and back surfaces of the first film photomask or the second film photomask by using a dust-free cloth and alcohol.
Compared with the related technology, the invention has the beneficial effects that:
firstly, an exposure process is added after the first layer of photosensitive resist is processed, so that the hardness of the first layer of photosensitive resist can be improved, the screen printing plate is prevented from being pierced by impurities in printing ink in the screen printing process, the appearance in a screen window is ensured, and the service life of screen printing of the screen printing plate is prolonged;
secondly, the second layer of photosensitive glue and the first layer of photosensitive glue are subjected to light polymerization to the same extent, so that the intensity difference from outside to inside, strong outside and weak inside is avoided; and the structure that the first layer of photosensitive glue is wrapped in the second layer of photosensitive glue can reduce the gradient of the step, and is more beneficial to landfill of ink.
Drawings
Fig. 1 is a schematic view of a processing method of a screen for preventing screen penetration provided by the present invention, wherein (a), (b), (c) (d), (e), (f), (g), (h), and (i) are schematic views of each step;
fig. 2 is a schematic view of an application of a screen plate manufactured by the method for processing a screen plate for preventing screen penetration in a screen printing machine.
In the attached drawing, 1-screen frame, 2-screen gauze, 3-first layer of photosensitive glue, 4-second layer of photosensitive glue, 5-third layer of photosensitive glue, 6-fourth layer of photosensitive glue, 7-fifth layer of photosensitive glue, 8-second film photomask, 9-printing ink and 10-scraper.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
As shown in fig. 1, the method for processing a screen plate capable of preventing screen penetration provided in this embodiment includes the following steps:
step one, providing a 95 × 95cm aluminum screen frame 1 and a gauze 2, tensioning the gauze 2 to a required tension by using a screen tensioning machine, applying glue around the screen frame 1, then adhering the screen frame 1 to the tensioned gauze 2, and cutting off the excess gauze 2 outside the screen frame 1 after the glue is solidified to form the screen plate structure shown in fig. 1 (a).
And step two, providing water-based photosensitive glue, a glue coating knife and a coating machine, uniformly stirring the water-based photosensitive glue, pouring the water-based photosensitive glue into a groove of the glue coating knife, installing the glue coating knife on a machine table of the coating machine, starting the coating machine, coating the first layer of photosensitive glue 3 on the gauze 2 according to preset parameters, and drying the first layer of photosensitive glue. The preset parameters include the glue application angle, pressure and speed. The screen structure shown in fig. 1 (b) is formed.
And step three, providing a first film photomask with patterns and an exposure machine, wherein the black part of the first film photomask is shielded, and the transparent part is transparent. And wiping the front side and the back side of the first film photomask by using dust-free cloth and adding alcohol. Installing the first film photomask on an upper machine frame of the exposure machine, and installing a screen printing plate coated with the first layer of photosensitive resist 3 on a lower machine frame of the exposure machine, wherein the first film photomask and the screen printing plate are arranged up and down; starting an exposure machine, carrying out exposure according to preset parameters (exposure energy and time), washing an exposure area with high-pressure water after the exposure is finished, then drying and developing, wherein the development is that the irradiated part of the first layer of photosensitive glue cannot be washed away by water after the exposure polymerization reaction and remains on the gauze; the unexposed areas are washed away by water. The screen structure shown in fig. 1 (c) is formed.
And step four, detaching the screen printing plate after the step three from the exposure machine, installing the screen printing plate on a coating machine, repeating the step two, scraping and printing a second layer of photosensitive glue 4 on the first layer of photosensitive glue 3, and drying the first layer of photosensitive glue. The screen structure shown in fig. 1 (d) is formed.
And fifthly, repeating the second step, sequentially coating a third layer of photosensitive resist 5, a fourth layer of photosensitive resist 6 and a fifth layer of photosensitive resist 7 on the side of the gauze 2 away from the first layer of photosensitive resist 3, and baking the layers to sequentially form the screen printing plate structures shown in the figures 1 (e), 1 (f) and 1 (g).
And step six, placing the screen printing plate coated with the five layers of photosensitive adhesives and completing the step five on a machine table lower frame of an exposure machine, and providing a second film photomask 8 with patterns. The front and back sides of the second film mask 8 were also wiped with a dust-free cloth and alcohol. And installing the second film photomask 8 on the upper frame of the machine table of the exposure machine, wherein the second film photomask 8 and the screen are arranged up and down. The exposure machine is started, and the five layers of photosensitive resist on the gauze 2 are subjected to exposure polymerization reaction according to preset parameters (exposure energy and time) [ as shown in figure 1 (h) ]. After exposure, washing the exposed area with high-pressure water, drying and developing to obtain various photosensitive adhesives after exposure reaction, wherein the parts irradiated with light cannot be washed away by water and remain on the gauze; the unexposed areas are washed away by water.
And D, the light source size of the second film photomask is larger than that of the first film photomask, and after the fifth step, the first layer of photosensitive glue is wrapped in the second layer of photosensitive glue.
And seventhly, finishing the manufacturing of the screen printing plate, and finally forming the screen printing plate structure shown in the figure 1 (i).
As shown in fig. 2, the processed screen printing plate can be filled with ink 9 in a screen printing machine and uniformly scraped by a scraper 10 of the screen printing machine. At the moment, because the third step is additionally arranged, the hardness of the first layer of photosensitive glue is improved, and the problem that the first layer of photosensitive glue and the second layer of photosensitive glue are damaged and impurities in the printing ink directly pierce through the five layers of photosensitive glue due to the fact that the first layer of photosensitive glue and the second layer of photosensitive glue are influenced by extrusion friction of the scraper 10 and the printing ink 9 on the screen printing plate repeatedly and impurities in the printing ink can be avoided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A screen processing method for preventing screen penetration is characterized by comprising the following steps:
providing a screen frame and a gauze, tensioning the gauze to a required tension, and fixing the gauze by using the screen frame;
step two, providing water-based photosensitive glue, a glue spreading knife and a coating machine, pouring the water-based photosensitive glue into a groove of the glue spreading knife, installing the glue spreading knife on a machine table of the coating machine, starting the coating machine, coating a first layer of photosensitive glue on the gauze according to preset parameters, and drying the gauze;
step three, providing a first film photomask for manufacturing patterns and an exposure machine, installing the first film photomask on a machine table upper frame of the exposure machine, and installing a screen printing plate coated with a first layer of photosensitive glue on a machine table lower frame of the exposure machine, wherein the first film photomask and the screen printing plate are arranged up and down; opening the exposure machine and developing;
step four, the screen printing plate is placed on a coating machine, the step two is repeated, and a second layer of photosensitive glue is scraped and printed on the first layer of photosensitive glue and dried;
step five, repeating the step two, and sequentially coating a third layer of photosensitive glue, a fourth layer of photosensitive glue and a fifth layer of photosensitive glue on the side, away from the first layer of photosensitive glue, of the gauze and drying the gauze;
placing the screen printing plate coated with the five layers of photosensitive adhesives on a machine table lower frame of an exposure machine, and providing a second film photomask with patterns; installing the second film photomask on a machine table upper frame of the exposure machine, wherein the second film photomask and the screen are arranged up and down; opening the exposure machine and developing;
and step seven, finishing the manufacture of the screen printing plate.
2. The method for processing the screen printing plate for preventing the screen punching according to claim 1, wherein the light source size of the second film photomask is larger than that of the first film photomask, and after the fifth step, the first layer of photosensitive resist is wrapped in the second layer of photosensitive resist.
3. The method for processing the screen printing plate for preventing the screen from being penetrated through as claimed in claim 1, wherein in the first step, a screen tensioning machine is provided to tension the screen to a required tension, glue is applied to the periphery of the screen frame, the screen frame is adhered to the tensioned screen, and after the glue is solidified, the excess screen outside the screen frame is cut off.
4. The method for processing a screen printing plate for preventing screen penetration according to claim 1 or 3, wherein the screen frame is an aluminum screen frame with a size of 95 x 95 cm.
5. The method for processing a screen printing plate for preventing screen penetration according to claim 1, wherein the preset parameters in the second step include a glue spreading angle, pressure and speed.
6. The method for processing the screen printing plate for preventing the screen from being penetrated according to the claim 1, wherein in the third step, exposure is carried out according to preset parameters, after the exposure is finished, the screen printing plate is washed and dried, the first layer of photosensitive glue leaves the parts which are irradiated on the screen printing plate, and the parts which are not irradiated are washed away by water.
7. The method for processing a screen for preventing screen cut according to claim 1 or 6, wherein the exposure in the third and fifth steps requires exposure energy and time which are set in advance.
8. The method for processing a screen printing plate for preventing screen penetration according to claim 1, wherein in the third step and the fifth step, the first film photomask and the second film photomask need to be subjected to dust removal treatment before use.
9. The method for processing a screen printing plate for preventing screen penetration according to claim 8, wherein the dust removing treatment is to wipe the front and back surfaces of the first film mask or the second film mask with a dust-free cloth and alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069399.4A CN111142330B (en) | 2020-01-21 | 2020-01-21 | Screen printing plate processing method for preventing screen penetration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069399.4A CN111142330B (en) | 2020-01-21 | 2020-01-21 | Screen printing plate processing method for preventing screen penetration |
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| CN111142330A true CN111142330A (en) | 2020-05-12 |
| CN111142330B CN111142330B (en) | 2023-04-07 |
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| CN202010069399.4A Active CN111142330B (en) | 2020-01-21 | 2020-01-21 | Screen printing plate processing method for preventing screen penetration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112693214A (en) * | 2020-12-30 | 2021-04-23 | 苏州蓝昇精密制版科技有限公司 | Preparation method of printing screen with locally-stressed reinforced surface |
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| CN111142330B (en) | 2023-04-07 |
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Denomination of invention: A method of screen printing for preventing mesh penetration Effective date of registration: 20231206 Granted publication date: 20230407 Pledgee: China Construction Bank Corporation Lengshuijiang Branch Pledgor: Lengshuijiang Jingke Electronic Technology Co.,Ltd. Registration number: Y2023980069790 |