CN101462426B - Technology for printing sheet material with 3-D pattern - Google Patents
Technology for printing sheet material with 3-D pattern Download PDFInfo
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- CN101462426B CN101462426B CN 200810153563 CN200810153563A CN101462426B CN 101462426 B CN101462426 B CN 101462426B CN 200810153563 CN200810153563 CN 200810153563 CN 200810153563 A CN200810153563 A CN 200810153563A CN 101462426 B CN101462426 B CN 101462426B
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Abstract
The invention relates to a process for printing a sheet with a 3-D pattern on the surface of a mobile phone. The process improves the effect of the 3-D pattern by determining the thickness of a screen printing plate to be between 49 and 51mu, and meets user requirements through once positioning, multiple printing and multiple baking to achieve the effect of the 3-D pattern with different heights.Firstly, transparent ink is printed on an achromatic transparent sheet to increase the brightness, then the transparent ink is printed for multiple times according to the user requirements subsequently, and the viscosity of the ink is controlled at between 16 and 20p, so the nice effect of the 3-D pattern by setting baking parameters is achieved. The process comprises the following steps: 1, making an original pattern, and outputting a film sheet; 2, making a plate for the 3-D pattern (stretching a screen, manufacturing the plate by sensitization, and developing by exposure); and 3, printing the 3-D pattern (preparing the ink, setting the printing parameter, printing and baking). The product manufactured by the process meets the user requirement on the solid effect of the 3-D pattern, thereby improving level of the product, increasing attraction of the product, and improving the economic benefit of the product.
Description
Technical field
The present invention relates to the sheet surface typography, particularly a kind of mobile phone surface that is applicable to has the technology for printing sheet material of three-D pattern.
Background technology
In today of technology develop rapidly, printed matter surface is decorated processing and has been presented variation and art up development trend, and original serigraphy can not satisfy the demands of consumers (pattern lacks third dimension, and outward appearance is single).In recent years, some mobile phone producers design the three-D pattern of different decorative patterns as mobile phone incrustation new highlight by market survey, but being printed in the serigraphy of this three-D pattern is to be difficult to realize.In through repetition test and development process; open defects such as bubble, crackle appear through regular meeting; and to overcome these defectives, all be to realize the typographic key problem in technology of three-D pattern at the thickness selection of thick film version, the control of printing ink viscosity and the aspects such as formulation of printing and drying parameter.
Summary of the invention
The objective of the invention is,, provide a kind of technology for printing sheet material that has three-D pattern especially in order to realize the stereoeffect of mobile phone surface three dimension pattern.This technology is improved the three-D pattern effect by the thickness of determining screen printing forme, repeatedly prints by one-time positioning to reach differing heights three-D pattern effect and satisfy customer requirements again.The at first brightness of printing layer of transparent printing ink raising earlier on the water white transparency sheet material at the follow-up repeatedly printing transparent printing ink of customer requirements thickness of pressing, reaches the three-D pattern aesthetic by the setting of toasting parameter.
The technology for printing sheet material that has three-D pattern follows these steps to carry out:
(1), original copy is made and the output of film sheet
Carry out computer according to layout and handle, go out film with laser phototypesetting technology then;
(2), the plate-making of three-D pattern
1., net stretches tight: silk screen is stretched tight on screen frame, make screen printing forme, its net angle that stretches tight is 45 °, and the net tension force that stretches tight is 27N/cm;
2., photosensitive lithographic: the screen printing forme of making placed be coated with photoresists on the coating machine, at first according to setting, the forward and backward scraper of coating machine is put into oven drying then in the coating twice continuously of the two sides of screen printing forme, oven temperature is set in 40-50 ℃, is set in drying time 10-20 minute; Setting coating machine then only is coated with in that the printing surface wet pressing of screen printing forme is wet, put into oven drying after the coating, oven temperature is set in 40-50 ℃, is set in drying time 30-40 minute, use at last film thickness gauge to the coating photoresists thickness detect so that THICKNESS CONTROL in 50 ± 1um scope;
3., exposure imaging: will be coated with the screen printing forme of photoresists and the film of making and send exposure machine to expose, the time for exposure is set in 750s, exposure after developing machine develop, the most laggard oven for drying, this moment, the thick film version was made;
(3), the printing of three-D pattern
1., printing ink allotment: use additive allotment printing ink, ink viscosity is controlled at 18 ± 2pa.s;
2., printing parameter is set: set printing parameter, wherein scraper hardness before the printing earlier: 75/90/75 Shore degree, net distance: 2-3mm, scraper angle: 75 degree, pressure: 3.0atm;
3., printing and baking: sheet material to be printed and thick film version are positioned on the printing machine, temperature in the continuous tunnel furnace is set at 60 ℃, and the speed of service is 2.7m/min, and oven temperature is set at 80 ℃, the printing of beginning first pass, first pass prints laggard continuous tunnel furnace oven dry, reenters oven for drying 5 minutes, carries out second time printing then, print laggard continuous tunnel furnace oven dry for second time, reentered oven for drying 5 minutes, and carried out the 3rd time printing then, the 3rd time printing back was directly into oven for drying 30 minutes.
The present invention has following beneficial effect: adopt the product of this processes, satisfied the demand of user to the three-D pattern stereoeffect, thereby product specification is provided, strengthened the product attraction, improved the economic benefit of product simultaneously.
The specific embodiment
The present invention is further described to adopt the PC technology for printing sheet material that has three-D pattern below in conjunction with the mobile phone surface.Its concrete processing step is as follows:
(1), original copy is made and the output of film sheet
Carry out computer according to layout and handle, go out film with laser phototypesetting technology then.
(2), the plate-making of three-D pattern
1., net stretches tight: silk screen is stretched tight on screen frame, make screen printing forme, its net angle that stretches tight is 45 °, and the net tension force that stretches tight is 27N/cm;
Silk screen adopts high-tension/low elongation polyester net of 300/inch, and screen frame is 950 * 850 aluminium alloy screen frames, and screen printing forme adopts the net that tiltedly stretches tight, and its net angle that stretches tight is 45 ° can realize that lines are more clear.
2., photosensitive lithographic: the screen printing forme of making placed be coated with photoresists on the coating machine, at first according to setting, the forward and backward scraper of coating machine is put into oven drying then in the coating twice continuously of the two sides of screen printing forme, oven temperature is set in 45 ℃, is set in drying time 15 minutes; Setting coating machine then only is coated with in that the printing surface wet pressing of screen printing forme is wet, put into oven drying after the coating, oven temperature is set in 45 ℃, is set in drying time 35 minutes, uses film thickness gauge that the THICKNESS CONTROL of coating photoresists is detected in 50 ± 1um scope at last.
3., exposure imaging: will be coated with the screen printing forme of photoresists and the film of making and send exposure machine to expose, the time for exposure is set in 750s, exposure after developing machine develop, the most laggard oven for drying, this moment, the thick film version was made.
Above step is to take to improve 3-D effect by the thickness that increases screen printing forme.When adopting direct-to-plate, the thickness of screen printing forme obtains by being coated with photoresists for several times.The coating once, drying once, cycling just can obtain needed thickness of screen printing forme successively.The requirement of three-D pattern height is selected for use the thickness of photoresists according to the user.But the thickness (thick film) of coating photoresists must be controlled at 50 ± 1um, if thick film is blocked up, can cause lines uneven when promptly scraping hachure in coating process, can cause printing back pattern uniformity relatively poor; If thick lepthymenia, the stereoeffect of three-D pattern is not obvious.Therefore the control of thick film thickness is to satisfy the customer requirements key problem in technology.Determine through test of many times simultaneously, should be set at 750s in the time for exposure the screen printing forme that adopts the thick photoresists of 50um.More than Tu Bu photoresists all adopt the solvent-borne type photoresists.
(3), the printing of three-D pattern
1., printing ink allotment: use additive allotment printing ink, ink viscosity is controlled at 18 ± 2pa.s; Printing ink is selected the HTR093 of Baolong transparent ink for use, uses diluent or curing agent to control the printing ink viscosity.For strictness control printing ink viscosity, adopt each 100g of granting
And control with the mode that viscosimeter detects, that is to say that operating personnel finish the employed printing ink of printing within a certain period of time, its viscosity guarantees at 18 ± 2pa.s.
2., printing parameter is set: set printing parameter, wherein scraper hardness before the printing earlier: 75/90/75 Shore degree, net distance: 2.5mm, scraper angle: 75 degree, pressure: 3.0atm (employing constant-voltage system).
3., printing and baking: sheet material to be printed and thick film version are positioned on the printing machine, temperature in the continuous tunnel furnace is set at 60 ℃, and the speed of service is 2.7m/min, and oven temperature is set at 80 ℃, the printing of beginning first pass, first pass prints laggard continuous tunnel furnace oven dry, reenters oven for drying 5 minutes, carries out second time printing then, print laggard continuous tunnel furnace oven dry for second time, reentered oven for drying 5 minutes, and carried out the 3rd time printing then, the 3rd time printing back was directly into oven for drying 30 minutes.
Because the thickness of thick film version is 50um, therefore need repeatedly printing, repeatedly toast, just can reach the stereoeffect of three-D pattern.Drying condition is determined through repetition test, in process of the test, find, if directly enter the baking oven high temperature drying after the printing of three-D pattern sheet material, be easy to occur open defects such as bubble, crackle, therefore, determined above parameter through experiment repeatedly, product is first low temperature drying after printing, the printing ink top layer is conjunctiva not, and solvent and air can have the adequate time volatilization, is difficult for producing bubble; High-Temperature Strengthening oven dry subsequently makes printing ink fully dry before the road prints down, does not crack.
The succeeding in developing of technology for printing sheet material that has three-D pattern is owing to taked the interim optimization dry and by DOE of strengthening, and determined the technical parameter in the above-mentioned steps, thereby thoroughly solved the appearance quality that repeatedly in press occurred once.
The printing machine of this process using is the ATMECH57 type printing machine that Taiwan produces, and miscellaneous equipment (as coating machine, exposure machine, continuous tunnel furnace etc.) is industry common apparatus.
Claims (1)
1. technology for printing sheet material that has three-D pattern is characterized by and follows these steps to carry out:
(1), original copy is made and the output of film sheet
Carry out computer according to layout and handle, go out film with laser phototypesetting technology then;
(2), the plate-making of three-D pattern
1., net stretches tight: silk screen is stretched tight on screen frame, make screen printing forme, its net angle that stretches tight is 45 °, and the net tension force that stretches tight is 27N/cm;
2., photosensitive lithographic: the screen printing forme of making placed be coated with photoresists on the coating machine, at first according to setting, the forward and backward scraper of coating machine is put into oven drying then in the coating twice continuously of the two sides of screen printing forme, oven temperature is set in 40-50 ℃, is set in drying time 10-20 minute; Setting coating machine then only is coated with in that the printing surface wet pressing of screen printing forme is wet, put into oven drying after the coating, oven temperature is set in 40-50 ℃, is set in drying time 30-40 minute, use at last film thickness gauge to the coating photoresists thickness detect so that THICKNESS CONTROL in 50 ± 1um scope;
3., exposure imaging: will be coated with the screen printing forme of photoresists and the film of making and send exposure machine to expose, the time for exposure is set in 750s, exposure after developing machine develop, the most laggard oven for drying, this moment, the thick film version was made;
(3), the printing of three-D pattern
1., printing ink allotment: use additive allotment printing ink, ink viscosity is controlled at 18 ± 2pa.s;
2., printing parameter is set: set printing parameter, wherein scraper hardness before the printing earlier: 75/90/75 Shore degree, net distance: 2-3mm, scraper angle: 75 degree, pressure: 3.0atm;
3., printing and baking: sheet material to be printed and thick film version are positioned on the printing machine, temperature in the continuous tunnel furnace is set at 60 ℃, and the speed of service is 2.7m/min, and oven temperature is set at 80 ℃, the printing of beginning first pass, first pass prints laggard continuous tunnel furnace oven dry, reenters oven for drying 5 minutes, carries out second time printing then, print laggard continuous tunnel furnace oven dry for second time, reentered oven for drying 5 minutes, and carried out the 3rd time printing then, the 3rd time printing back was directly into oven for drying 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810153563 CN101462426B (en) | 2008-11-27 | 2008-11-27 | Technology for printing sheet material with 3-D pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810153563 CN101462426B (en) | 2008-11-27 | 2008-11-27 | Technology for printing sheet material with 3-D pattern |
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| Publication Number | Publication Date |
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| CN101462426A CN101462426A (en) | 2009-06-24 |
| CN101462426B true CN101462426B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810153563 Expired - Fee Related CN101462426B (en) | 2008-11-27 | 2008-11-27 | Technology for printing sheet material with 3-D pattern |
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2008
- 2008-11-27 CN CN 200810153563 patent/CN101462426B/en not_active Expired - Fee Related
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| CN101462426A (en) | 2009-06-24 |
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