CN105050330A - Method for manufacturing thickened silk printing plate and method for silk printing blue gel by using thickened silk printing plate - Google Patents
Method for manufacturing thickened silk printing plate and method for silk printing blue gel by using thickened silk printing plate Download PDFInfo
- Publication number
- CN105050330A CN105050330A CN201510389319.2A CN201510389319A CN105050330A CN 105050330 A CN105050330 A CN 105050330A CN 201510389319 A CN201510389319 A CN 201510389319A CN 105050330 A CN105050330 A CN 105050330A
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- Prior art keywords
- half tone
- silk printing
- photosensitive slurry
- silk
- printing plate
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Classifications
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- 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
- H05K3/1225—Screens or stencils; Holders therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/05—Patterning and lithography; Masks; Details of resist
- H05K2203/0502—Patterning and lithography
- H05K2203/0531—Decalcomania, i.e. transfer of a pattern detached from its carrier before affixing the pattern to the substrate
Abstract
The invention relates to the technical field of PCB production, especially to a method for manufacturing a thickened silk printing plate and a method for silk printing blue gel by using the thickened silk printing plate. After slurry coating for second and third times, pressure-sensitive adhesive is pasted on the silk printing plate to increase the coating space. Relative thick photosensitive slurry can be coated on the silk printing plate. After coating for a third time, the thickness of the photosensitive film formed by dried photosensitive slurry reaches 0.35mm. An 18 silk printing plate is used to produce the thickened silk printing plate, of which the thickness reaches 0.51mm. When the thickened silk printing plate is used for silk printing blue gel, the thickness of the blue gel reaches 0.51mm, and the thickness of the blue gel after plate baking reaches 0.4mm. When the thickened silk printing plate is used for silk printing blue gel on PCB, the production requirement that the thickness of the blue gel reaches 0.25-0.55 mm can met through one-time silk printing. The production flow of silk printing blue gel is shortened, and the production efficiency is improved. When the thickened silk printing plate is used, silk printing pressure force of 5-6 kg/cm2 is adopted to make blue gel blanking complete, uniform and voidless and improve the quality of silk printed products.
Description
Technical field
The present invention relates to PCB manufacturing technology field, particularly relate to a kind of thicken half tone manufacture method and use the method thickening the blue glue of half tone silk-screen.
Background technology
In the production and processing of PCB (PrintedCircuitBoard, printed wiring board), according to designing requirement, need on part PCB the blue glue of silk-screen, and after baking sheet, the thickness of the blue glue of General Requirements is 0.25-0.55mm.But, the blue glue of silk-screen half tone used is made up of the half tone figure on 18T gauze and gauze, the wire diameter of 18T half tone is 0.160mm, the thickness of half tone figure is generally the gross thickness of 0.07mm, 18T half tone and half tone figure is 0.23mm, uses the blue glue of such half tone silk-screen on PCB, the thickness of PCB blueing glue is 0.23mm, after toasting blue glue, the thickness of PCB blueing glue is generally 0.15mm, does not reach the thickness requirement of 0.25-0.55mm.Therefore, the method for the existing blue glue of silk-screen on PCB need through secondary silk-screen, and its thickness just can reach the production requirement of 0.25-0.55mm, and production efficiency is low.
Summary of the invention
The present invention is directed to the blue glue technology of existing silk-screen just need can reach the thickness of 0.25-0.55mm problem through secondary silk-screen, a kind of manufacture method thickening half tone is provided, and uses the method for the blue glue of this thickening half tone silk-screen.
For achieving the above object, the present invention by the following technical solutions.
Thicken a manufacture method for half tone, comprise the following steps:
S1 stretches tight net: be tightened on screen frame by half tone, and by clean for half tone clean.
Described half tone order number is 18T, and tension force is 18-24N/cm
2.
A S2 pasting: be coated on half tone by photosensitive slurry, and the photosensitive slurry of hot curing, make photosensitive slurry become light-sensitive surface.
Preferably, the temperature of the photosensitive slurry of hot curing is 40 ± 3 DEG C, and the time is 50min.
S3 bis-pastings: pressing sensitive tape on the both sides of half tone symmetry, is then coated on photosensitive slurry on half tone, and the photosensitive slurry of hot curing, make photosensitive slurry become light-sensitive surface.
Preferably, the temperature of the photosensitive slurry of hot curing is 40 ± 3 DEG C, and the time is 40min.
S4 tri-pastings: pressing sensitive tape on the another both sides of half tone symmetry, is then coated on photosensitive slurry on half tone, and the photosensitive slurry of hot curing, make photosensitive slurry become light-sensitive surface.
Preferably, the temperature of the photosensitive slurry of hot curing is 40 ± 3 DEG C, and the time is 40min.
In above-mentioned steps S2-S4, when half tone is coated with photosensitive slurry, coating pressure is 0.3kg/cm
2, coating distance is 50mm/s, and scraper distance is 7mm.
In above-mentioned steps S2-S4, when being coated with photosensitive slurry, half tone is vertically placed, be coated with photosensitive slurry from lower to upper on two surfaces of half tone respectively.
S5 half tone figure: by the half tone film and half tone contraposition, makes Graphic transitions on the half tone film on light-sensitive surface through overexposure and development successively, obtainedly thickeies half tone.
Preferably, the time of exposure is 450-500s.
After obtained thickening half tone, also comprise baking and thicken half tone, block and inspection net step.
Preferably, at 40 ± 2 DEG C, baking thickeies half tone 30min.
Use the method thickening the blue glue of half tone silk-screen, described thickening half tone is above-described thickening half tone, and the method for the blue glue of described silk-screen comprises the following steps successively: the blue glue of silk-screen, the blue glue of hot curing, exposure, development and baking sheet; In the blue glue step of described silk-screen, silk-screen pressure is 5-6kg/cm
2.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is by when secondary pasting and three pastings, half tone pastes pressure sensitive adhesive, coat capacity is increased with this, thus make half tone to be coated with thicker photosensitive slurry, after three coatings, the thickness of the light-sensitive surface formed by photosensitive slurry oven dry can reach 0.35mm, use 18T half tone to make and thicken half tone, the thickness thickening half tone can reach 0.51mm, therefore use this thickening half tone on PCB during silk-screen indigo plant glue, the thickness of blue glue can reach 0.51mm, and after baking sheet, the thickness of blue glue can reach 0.4mm.Namely use the blue glue of the silk-screen on PCB of the thickening half tone prepared by the present invention, only need silk-screen once can reach the production requirement of blue glue thickness 0.25-0.55mm, thus the production procedure of the blue glue of silk-screen can be shortened, enhance productivity.When using thickening half tone silk-screen indigo plant glue, adopt 5-6kg/cm
2silk-screen pressure, can make blue glue blanking more fully, evenly, tight, improve silk-screen quality.
Embodiment
In order to more fully understand technology contents of the present invention, below in conjunction with specific embodiment, technical scheme of the present invention being described further and being illustrated.
Embodiment 1
The present embodiment provides a kind of manufacture method thickening half tone, comprises the following steps:
(1) stretch tight net: use and be rectangle and the order number half tone that is 18T, thickness is 0.16mm, and half tone tension force is 18-24N/cm2, first check whether half tone has breakage, unabroken half tone is tightened on screen frame, cleans the two sides of half tone with binding dust roller, by clean for half tone two sides clean.
Modulate photosensitive slurry: mix photosensitive slurry and sensitization powder, and stir 2-3 minute, then leave standstill and within more than 2 hours, make bubble in glue eliminate only, then photosensitive slurry is poured in scraper, for subsequent use.
(2) pastings:
Be uniformly coated on half tone by photosensitive slurry, then gauze is placed in 40 ± 3 DEG C of baking 50min and photosensitive slurry is solidified, photosensitive slurry becomes light-sensitive surface.
Coating method is vertically placed by half tone, then from lower to upper photosensitive slurry is coated on two surfaces of half tone, is coated with photosensitive slurry 3 times from lower to upper.Coating pressure is 0.3kg/cm
2, coating distance is 50mm/s, and scraper distance is 7mm.
(3) secondary pasting: at a pressing sensitive tape (red adhesive tape) on the surface and on two of symmetry long limits of half tone, and rumble presses flat.Then be uniformly coated on half tone by photosensitive slurry, then gauze is placed in 40 ± 3 DEG C of baking 40min and photosensitive slurry is solidified, photosensitive slurry becomes light-sensitive surface.
Coating method is vertically placed by half tone, then from lower to upper photosensitive slurry is coated on two surfaces of half tone, is coated with photosensitive slurry 3 times from lower to upper.Coating pressure is 0.3kg/cm
2, coating distance is 50mm/s, and scraper distance is 7mm.
(4) three pastings: at a pressing sensitive tape on the surface and on two of symmetry minor faces (the half tone surface of pressing sensitive tape be coated with secondary in the surface of pressing sensitive tape identical) of half tone, and rumble presses flat.Then be uniformly coated on half tone by photosensitive slurry, then gauze is placed in 40 ± 3 DEG C of baking 40min and photosensitive slurry is solidified, photosensitive slurry becomes light-sensitive surface.Through three coatings, the gross thickness of the light-sensitive surface after baking on PCB is 0.35mm, can reach 0.51mm after the thickness of light-sensitive surface and half tone.
Coating method is vertically placed by half tone, then from lower to upper photosensitive slurry is coated on two surfaces of half tone, is coated with photosensitive slurry 3 times from lower to upper.Coating pressure is 0.3kg/cm
2, coating distance is 50mm/s, and scraper distance is 7mm.
(5) half tone figure: by the half tone film and half tone contraposition, enter automatic exposure program, the time of exposure is 450-500s.Time for exposure reaches rear automatic light-off, now discharges vacuum and takes out half tone, kept well by the half tone film, shines net (exposure) and has operated.Soak half tone 1-3min with clear water, then rinse half tone with pressure (hydraulic) water, unexposed light-sensitive surface is rinsed out, then spray half tone with jet flow clear water again, half tone is cleaned up, completes development operation.After overexposure and development, the Graphic transitions on the half tone film is on light-sensitive surface, and obtained thickening half tone, thickness is 0.51mm.
(6) baking sheet: blot with absorbent cloth and thicken the unnecessary moisture content of half tone surrounding, then thickening half tone is put in the baking oven of 40 ± 2 DEG C dry 30min, dry and thicken half tone.
Then, then by prior art block and inspection net are carried out to thickening half tone.
Block: check and thicken whether half tone has that sand holes, character are unclear, lines with or without dog tooth, with or without falling the defects such as net slurry, and with the repairing of block slurry, when there being cycle character, must require the amendment cycle according to MI.
Inspection net: with alcohol by clean clean for the glass table top of inspection half tone, tipping upside down on the glass table top of inspection half tone, opening the illuminating lamp under table top by thickening half tone, checks whether half tone have and leaks loophole repair part, and the cycle, whether wrong and figure shone anti-etc. with or without envelope.
Embodiment 2
The present embodiment provides a kind of method of the blue glue of silk-screen on PCB, and uses the thickening half tone prepared by embodiment 1 to carry out silk-screen.The method of the blue glue of silk-screen comprises the following steps:
(1) the blue glue of silk-screen
Put PCB in screen printer, and debug with the contraposition of thickening half tone, be then evenly coated on PCB by blue glue, the thickness of blue glue is 0.51mm.The viscosity of blue glue used is 700-1000dPas, and silk-screen pressure is 5-6kg/cm
2.
(2) the blue glue of hot curing
Baking oven PCB being placed in 155 DEG C toasts 45min, makes the blue glue primary solidification on PCB, forms blue glue-line, and the thickness of blue glue-line is 0.4mm.
(3) exposure and development
PCB is moved in exposure machine, and through development, by the Graphic transitions on the film to blue glue-line.
(4) baking sheet
After water cleaning wiring board, dried up by PCB, complete the blue glue work of silk-screen, the thickness of PCB blueing glue is 0.4mm.
Use the blue glue of the thickening half tone silk-screen of embodiment 1, and coordinate above-described technological parameter, as 5-6kg/cm
2silk-screen pressure, a silk-screen can reach the thickness requirement of 0.25-0.55mm.
The above only further illustrates technology contents of the present invention with embodiment, so that reader is easier to understand, but does not represent embodiments of the present invention and is only limitted to this, and any technology done according to the present invention extends or recreation, all by protection of the present invention.
Claims (8)
1. thicken a manufacture method for half tone, it is characterized in that, comprise the following steps:
S1 stretches tight net: be tightened on screen frame by half tone, and by clean for half tone clean;
A S2 pasting: be coated on half tone by photosensitive slurry, and the photosensitive slurry of hot curing, make photosensitive slurry become light-sensitive surface;
S3 bis-pastings: pressing sensitive tape on the both sides of half tone symmetry, is then coated on photosensitive slurry on half tone, and the photosensitive slurry of hot curing, make photosensitive slurry become light-sensitive surface;
S4 tri-pastings: pressing sensitive tape on the another both sides of half tone symmetry, is then coated on photosensitive slurry on half tone, and the photosensitive slurry of hot curing, make photosensitive slurry become light-sensitive surface;
S5 half tone figure: by the half tone film and half tone contraposition, makes Graphic transitions on the half tone film on light-sensitive surface through overexposure and development successively, obtainedly thickeies half tone.
2. a kind of manufacture method thickening half tone according to claim 1, it is characterized in that, described half tone order number is 18T, and tension force is 18-24N/cm
2.
3. a kind of manufacture method thickening half tone according to claim 2, it is characterized in that, in step S2-S4, when half tone is coated with photosensitive slurry, coating pressure is 0.3kg/cm
2, coating distance is 50mm/s, and scraper distance is 7mm.
4. a kind of manufacture method thickening half tone according to claim 3, is characterized in that, in step S2-S4, when being coated with photosensitive slurry, vertically placed by half tone, be coated with photosensitive slurry from lower to upper respectively on two surfaces of half tone.
5. a kind of manufacture method thickening half tone according to claim 4, it is characterized in that, in step S2, the temperature of the photosensitive slurry of hot curing is 40 ± 3 DEG C, and the time is 50min; In step S3, the temperature of the photosensitive slurry of hot curing is 40 ± 3 DEG C, and the time is 40min; In step S4, the temperature of the photosensitive slurry of hot curing is 40 ± 3 DEG C, and the time is 40min.
6. a kind of manufacture method thickening half tone according to claim 1, is characterized in that, in step S5, also comprises the step that baking thickeies half tone, at 40 ± 2 DEG C, toasts 30min.
7. a kind of manufacture method thickening half tone according to claim 1, it is characterized in that, in step S5, the time of exposure is 450-500s.
8. one kind uses the method thickening the blue glue of half tone silk-screen, described thickening half tone is thickening half tone prepared by claim 1, the method of the blue glue of described silk-screen comprises the following steps successively: the blue glue of silk-screen, the blue glue of hot curing, exposure, development and baking sheet, it is characterized in that, in the blue glue step of described silk-screen, silk-screen pressure is 5-6kg/cm
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389319.2A CN105050330B (en) | 2015-07-02 | 2015-07-02 | A kind of production method for thickening halftone and the method using thickening halftone silk-screen indigo plant glue |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389319.2A CN105050330B (en) | 2015-07-02 | 2015-07-02 | A kind of production method for thickening halftone and the method using thickening halftone silk-screen indigo plant glue |
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| Publication Number | Publication Date |
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| CN105050330A true CN105050330A (en) | 2015-11-11 |
| CN105050330B CN105050330B (en) | 2018-05-01 |
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| CN201510389319.2A Active CN105050330B (en) | 2015-07-02 | 2015-07-02 | A kind of production method for thickening halftone and the method using thickening halftone silk-screen indigo plant glue |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105376954A (en) * | 2015-11-12 | 2016-03-02 | 深圳市深联电路有限公司 | Method for preventing hard gold surface of battery PCB from being scratched |
| CN106079847A (en) * | 2016-06-13 | 2016-11-09 | 仓和精密制造(苏州)有限公司 | The preparation method of wear-resisting puncture-resistant half tone |
| CN106211587A (en) * | 2016-08-15 | 2016-12-07 | 建业科技电子（惠州）有限公司 | A kind of blue glue making plug holes of pcb board |
| CN107567189A (en) * | 2017-08-31 | 2018-01-09 | 惠东县建祥电子科技有限公司 | A kind of method for improving pcb board indigo plant glue ink sealing of hole |
| CN110430690A (en) * | 2019-07-31 | 2019-11-08 | 高德（无锡）电子有限公司 | It is a kind of applied to the technique for meeting pcb board peelable glue minimum thickness |
| CN113635685A (en) * | 2021-08-12 | 2021-11-12 | 东莞市微科光电科技有限公司 | Screen printing method |
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| CN1939716A (en) * | 2005-09-30 | 2007-04-04 | 株式会社日立工业设备技术 | Silk screen printing device and printing system comprising same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376954A (en) * | 2015-11-12 | 2016-03-02 | 深圳市深联电路有限公司 | Method for preventing hard gold surface of battery PCB from being scratched |
| CN105376954B (en) * | 2015-11-12 | 2018-06-22 | 深圳市深联电路有限公司 | A kind of firmly golden faces of battery PCB prevent the method for wiping flower |
| CN106079847A (en) * | 2016-06-13 | 2016-11-09 | 仓和精密制造(苏州)有限公司 | The preparation method of wear-resisting puncture-resistant half tone |
| CN106211587A (en) * | 2016-08-15 | 2016-12-07 | 建业科技电子（惠州）有限公司 | A kind of blue glue making plug holes of pcb board |
| CN107567189A (en) * | 2017-08-31 | 2018-01-09 | 惠东县建祥电子科技有限公司 | A kind of method for improving pcb board indigo plant glue ink sealing of hole |
| CN110430690A (en) * | 2019-07-31 | 2019-11-08 | 高德（无锡）电子有限公司 | It is a kind of applied to the technique for meeting pcb board peelable glue minimum thickness |
| CN113635685A (en) * | 2021-08-12 | 2021-11-12 | 东莞市微科光电科技有限公司 | Screen printing method |
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| CN105050330B (en) | 2018-05-01 |
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