CN107160834A - During a kind of silk-screen printing of sheet paper in printing process anti-moire method - Google Patents
During a kind of silk-screen printing of sheet paper in printing process anti-moire method Download PDFInfo
- Publication number
- CN107160834A CN107160834A CN201710576005.2A CN201710576005A CN107160834A CN 107160834 A CN107160834 A CN 107160834A CN 201710576005 A CN201710576005 A CN 201710576005A CN 107160834 A CN107160834 A CN 107160834A
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- printing
- scraper
- ink
- half tone
- silk
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2200/00—Printing processes
- B41P2200/40—Screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/13—Devices for increasing ink penetration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/13—Devices for increasing ink penetration
- B41P2215/132—Devices for increasing ink penetration by increasing pressure above the screen
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- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Mechanical Engineering (AREA)
- Screen Printers (AREA)
- Printing Methods (AREA)
Abstract
The present invention relates to during a kind of silk-screen printing of sheet paper in printing process anti-moire method.It the described method comprises the following steps：（1）Select the ink of appropriate viscosity；（2）Select hardness, the suitable scraper of cutter head；（3）Air pressure is set to 5 10bar, and examination is scraped once, according to scraper and the trace situation of ink formation, adjusts scraper pressure；（4）Printing；（5）Printing trouble is detected in printing process；（6）After being completed for printing, the levelling process and flow time of ink are observed, adjustment ink viscosity control flow time optimizes printing effect.The present invention has considered the influence that the parameters such as scraper, squeegee pressure, following ink are produced to moire, and from scraper hardness, the selection of cutter head, set out in terms of the selection of the angle of intersection of squeegee pressure, scraper and half tone, propose a full set of scheme for reducing moire, reduce printing cost, the effect of printing is improved, the possibility for occurring moire in silk-screen printing is significantly reduced.
Description
Technical field
The present invention relates to flat board paper print field, and in particular to during a kind of sheet paper silk-screen printing in printing process
The method of anti-moire.
Background technology
Site in printing is all arranged according to certain rule, but has a kind of site but to show under certain angle
Show obvious interference figure line, it is in banding to show, latticed, cloud, the form such as turtle shell shape is commonly called as hitting net（Or moire）.
Moire is possible in the more local display of part network point distribution, it is also possible to be paved with whole figure line.
It is frequently encountered in printing and hits net problem, is shown and trace corrugated, zigzag are presented on product, does not discontinuously connect used
Shape, destroys the complete appearance of printed matter, it is impossible to exquisite printing effect is presented to meet customer need.
At present, it is to make a plate again to reduce the most common method of moire.But, make a plate again time-consuming longer, cost is high, also increases
Add human cost and printing equipment to be lost, influence production and operating activities of the time of delivery of product also to company to cause unfavorable shadow
Ring.
In existing silk-screen printing, the reason for 70% moire is half tone, 15% ~ 20% be the hardness, model, pressure of scraper not
Caused by coordinating.The making of half tone is more bothersome, if appropriate scraper and pressure is mismatched, during effective screen painting
Moire occurs.If not selecting suitable scraper hardness and squeegee pressure, think that half tone is set on the contrary improper, can cause
It is time-consuming.
Scraper generally uses polyurethane material, and the soft durometer of scraper is measured using sclerometer, and silk-screen printing typically exists
55-90HSA.55-65 HSA are soft, and 56-75 HSA are medium hardness, are high rigidity higher than 75 HSA.
The content of the invention
There is provided printed during a kind of sheet paper silk-screen printing for deficiencies of the prior art by the present invention
The method of anti-moire in journey.
The present invention uses following technical scheme：
During a kind of silk-screen printing of sheet paper in printing process anti-moire method, the described method comprises the following steps：
（1）According to printing demand, the ink of appropriate viscosity is selected；
（2）According to the material of half tone, flatness selection hardness, the suitable scraper of cutter head；
（3）It is 5-10bar with equipment operation air pressure to select scraper pressure, and examination is scraped once, according to scraper and the print of ink formation
Mark situation, both sides uniformly adjust scraper pressure, until meeting printing demand；
（4）The angle of intersection for selecting scraper and half tone is 55 ° -85 °, is printed；
（5）By checking that the trace on half tone detects printing trouble in printing process, if it find that significantly being transported with half tone scraper
The consistent wire trace of line direction, then illustrate faulty, carries out failture evacuation.
（6）After the completion of printing operation, the levelling process and flow time of ink are examined, according to print result by adjusting
Whole ink viscosity controls flow time, optimizes printing effect.
As the preferred of above-mentioned technical proposal, step of the present invention（2）Described in hardness, the suitable scraper of cutter head selection it is former
It is then：Improve the adaptability and press resistance rate to half tone as much as possible on the premise of basic printing demand is ensured, reduction scraper into
This.
As the preferred of above-mentioned technical proposal, step of the present invention（2）Described in hardness, the suitable scraper of cutter head be preferably
75HSA square toes scraper.
As the preferred of above-mentioned technical proposal, step of the present invention（3）Described in scraper pressure and equipment run the choosing of air pressure
Selecting principle is：In the case where meeting print request, as far as possible using minimum squeegee pressure.
As the preferred of above-mentioned technical proposal, step of the present invention（3）Described in scraper pressure and equipment operation air pressure it is preferred
For 6-8 bar.
As the preferred of above-mentioned technical proposal, step of the present invention（4）Described in scraper and half tone angle of intersection and lower ink
The relation of amount is：Angle is bigger, and following ink is smaller, and angle is smaller, and following ink is bigger；The principle of selection is：Will meeting printing
In the case of asking, as far as possible using minimum following ink, i.e., maximum angle is selected as far as possible.
As the preferred of above-mentioned technical proposal, step of the present invention（4）Described in the angle of intersection of scraper and half tone be preferably
70°。
As the preferred of above-mentioned technical proposal, step of the present invention（5）Described in the process of failture evacuation be：First, it need to look into
See whether half tone reels off raw silk from cocoons impaired, if any then being repaired；Whether have slag point, removed slag a little if any then removing if checking again in ink；Then
Blade edge flat conditions are checked with finger, if having defect, if any scraper skin is then re-grind, eliminate lacking on scraper skin
Trace.
As the preferred of above-mentioned technical proposal, step of the present invention（6）Described in ink viscosity refer mainly to dry dilute journey of ink
Degree.
As the preferred of above-mentioned technical proposal, step of the present invention（6）Described in flow time refer to printing ink transfer to printing
To this period before dry solidification after thing, also refer to the voluntarily flowing time after printing ink transfer to stock.
As the preferred of above-mentioned technical proposal, step of the present invention（6）Described in adjustment ink viscosity control flow time
Principle is：The auxiliary materials such as supporting diluent adjustment ink viscosity, the thick ink flow time of viscosity are added in former ink in proportion
Long, the dilute ink flow time of viscosity is short, and ink viscosity should meet printing effect, and production requirement is met again；Flow time
It is too short that printing can be caused rough, line edge zigzag, discontinuously the problems such as do not connect used shape；Flow time is long to be caused
The missing of baguette, picture and text are smudgy, the problems such as lines gap width narrows.
Beneficial effects of the present invention are：The shadow that the parameters such as scraper, squeegee pressure, following ink are produced to moire is considered
Ring, and from scraper hardness, the selection of cutter head, set out in terms of the selection of the angle of intersection of squeegee pressure, scraper and half tone, proposed
The a full set of scheme of moire is reduced, printing cost is reduced, improves the effect of printing, significantly reduces in silk-screen printing and occurs
The possibility of moire；The 75HSA square toes scraper hardness preferably gone out from various hardness, the scraper of cutter head is moderate, and both sides cutting edge is all
It can use, grinding is convenient, scraper service life is longer, almost can adapt to all half tones；From substantial amounts of experiment parameter preferably
Go out 6-8 bar squeegee pressure and 70 ° of angle of intersection, both reduced the formative factor of moire, the use of half tone can be increased again
In the life-span, production operation efficiency is improved, reduce ink use cost；Meanwhile, design a set of by observing the inspection of the trace on half tone
Printing trouble is surveyed, and whether impaired, whether there is slag point in ink if reeling off raw silk from cocoons from half tone, whether scraper has the aspect of defect three to carry out failure
Exclude, ensured effective progress of printing.Further optimize printing effect in terms of ink viscosity, flow time, reduction occurs
The possibility of moire.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention.
Fig. 2 is step of the present invention（5）Middle fault detect and the flow chart excluded.
Embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This.
Embodiment 1
First, according to printing demand, the ink of appropriate viscosity is selected；75HSA square toes are selected according to the material of half tone, flatness
Scraper；Then, selection scraper pressure and equipment operation air pressure are 5 bar, and examination is scraped once, according to scraper and the print of ink formation
Mark situation, both sides uniformly adjust the bar of scraper pressure 7.5, meet printing demand；The angle of intersection of reselection scraper and half tone is
55 °, printed；Wire trace significantly consistent with half tone scraper traffic direction on half tone is observed in printing process, is looked into
See half tone, discovery is not reeled off raw silk from cocoons impaired, then is checked ink, it is found that the inside, without slag point, then checks the smooth feelings of blade edge with finger
Condition, discovery has defect, re-grinds scraper skin, eliminates and proceeds printing after the scarce trace on scraper skin；After the completion of printing operation,
The levelling process and flow time of ink are examined, flow time is controlled by adjusting ink viscosity according to print result, it is excellent
Change printing effect.
Embodiment 2
First, according to printing demand, the ink of appropriate viscosity is selected；75HSA square toes are selected according to the material of half tone, flatness
Scraper；Then, selection scraper pressure and equipment operation air pressure are 10 bar, and examination is scraped once, according to scraper and ink formation
Trace situation, both sides uniformly adjust the bar of scraper pressure 7.6, meet printing demand；The angle of intersection of reselection scraper and half tone
For 85 °, printed；Wire trace significantly consistent with half tone scraper traffic direction on half tone is observed in printing process,
Check half tone, discovery is not reeled off raw silk from cocoons impaired, then is checked ink, it is found that the inside, without slag point, then checks that blade edge is smooth with finger
Situation, discovery has defect, re-grinds scraper skin, eliminates and proceeds printing after the scarce trace on scraper skin；Printing operation is completed
Afterwards, the levelling process and flow time of ink are examined, flow time is controlled by adjusting ink viscosity according to print result,
Optimize printing effect.
Embodiment 3
First, according to printing demand, the ink of appropriate viscosity is selected；75HSA square toes are selected according to the material of half tone, flatness
Scraper；Then, selection scraper pressure and equipment operation air pressure are 7.5 bar, and examination is scraped once, according to scraper and ink formation
Trace situation, both sides uniformly adjust the bar of scraper pressure 8, meet printing demand；The angle of intersection of reselection scraper and half tone is
70 °, printed；Wire trace significantly consistent with half tone scraper traffic direction on half tone is observed in printing process, is looked into
See half tone, discovery is not reeled off raw silk from cocoons impaired, then is checked ink, it is found that the inside, without slag point, then checks the smooth feelings of blade edge with finger
Condition, discovery has defect, re-grinds scraper skin, eliminates and proceeds printing after the scarce trace on scraper skin；After the completion of printing operation,
The levelling process and flow time of ink are examined, flow time is controlled by adjusting ink viscosity according to print result, it is excellent
Change printing effect.
Claims (7)
1. during a kind of silk-screen printing of sheet paper in printing process anti-moire method, it is characterised in that methods described include with
Lower step：
（1）According to printing demand, the ink of appropriate viscosity is selected；
（2）According to the material of half tone, flatness selection hardness, the suitable scraper of cutter head；
（3）It is 5-10 bar with equipment operation air pressure to select scraper pressure, and examination is scraped once, according to scraper and the print of ink formation
Mark situation, both sides uniformly adjust scraper pressure, until meeting printing demand；
（4）The angle of intersection for selecting scraper and half tone is 55 ° -85 °, is printed；
（5）By checking that the trace on half tone detects printing trouble in printing process, if it find that significantly being transported with half tone scraper
The consistent wire trace of line direction, then illustrate faulty, carries out failture evacuation；
（6）After the completion of printing operation, the levelling process and flow time of ink are examined, according to print result by adjusting oil
Black viscosity controls flow time, optimizes printing effect.
2. during a kind of sheet paper silk-screen printing as claimed in claim 1 in printing process anti-moire method, its feature
It is step（2）Described in hardness, the selection principle of the suitable scraper of cutter head be：On the premise of basic printing demand is ensured to the greatest extent
The adaptability and press resistance rate to half tone are possibly improved, scraper cost is reduced.
3. during a kind of sheet paper silk-screen printing as claimed in claim 1 in printing process anti-moire method, its feature
It is step（2）Described in hardness, the suitable scraper of cutter head be 75HSA square toes scraper.
4. during a kind of sheet paper silk-screen printing as claimed in claim 1 in printing process anti-moire method, its feature
It is step（3）Described in scraper pressure and equipment operation air pressure selection principle be：In the case where meeting print request, to the greatest extent
Amount uses minimum squeegee pressure.
5. during a kind of sheet paper silk-screen printing as claimed in claim 1 in printing process anti-moire method, its feature
It is step（4）Described in the relation of angle of intersection and following ink of scraper and half tone be：Angle is bigger, and following ink is smaller, angle
Degree is smaller, and following ink is bigger；The principle of selection is：In the case where meeting print request, as far as possible using minimum following ink, i.e.,
The angle of maximum is selected as far as possible.
6. during a kind of sheet paper silk-screen printing as claimed in claim 1 in printing process anti-moire method, its feature
It is step（5）Described in the process of failture evacuation be：First, need to check whether half tone reels off raw silk from cocoons impaired, if any then being repaired；
Whether have slag point, removed slag a little if any then removing if checking again in ink；Then blade edge flat conditions are checked with finger, if having scarce
Damage, if any scraper skin is then re-grind, eliminate the scarce trace on scraper skin.
7. during a kind of sheet paper silk-screen printing as claimed in claim 1 in printing process anti-moire method, its feature
It is step（6）Middle adjustment ink viscosity controls the principle of flow time to be：In proportion supporting diluent is added in former ink
Ink viscosity is adjusted Deng auxiliary material, the thick ink flow time of viscosity is long, and the dilute ink flow time of viscosity is short, and ink viscosity should
Printing effect is met, production requirement is met again；Flow time is too short to be caused to print rough, line edge sawtooth
Shape, discontinuously the problems such as do not connect used shape；Flow time is long to cause the missing of baguette, and picture and text are smudgy, lines gap
The problems such as narrowed width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576005.2A CN107160834B (en) | 2017-07-14 | 2017-07-14 | Method for preventing moire in printing process during screen printing of flat paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576005.2A CN107160834B (en) | 2017-07-14 | 2017-07-14 | Method for preventing moire in printing process during screen printing of flat paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107160834A true CN107160834A (en) | 2017-09-15 |
| CN107160834B CN107160834B (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576005.2A Active CN107160834B (en) | 2017-07-14 | 2017-07-14 | Method for preventing moire in printing process during screen printing of flat paper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109933004A (en) * | 2019-03-27 | 2019-06-25 | 苏芯物联技术(南京)有限公司 | The machine failure diagnosis and prediction method and system cooperateed with based on edge calculations and cloud |
| CN110757946A (en) * | 2019-10-17 | 2020-02-07 | 晋能清洁能源科技股份公司 | Scraper device suitable for solar cell screen printing |
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| CN102582341A (en) * | 2012-02-09 | 2012-07-18 | 无锡市科虹标牌有限公司 | Polycarbonate (PC) decorative board printed with three-dimensional image and printing process of PC decorative board |
| EP2812186A1 (en) * | 2012-02-08 | 2014-12-17 | Illinois Tool Works Inc. | Print head for stencil printer |
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| CN106068313A (en) * | 2015-01-27 | 2016-11-02 | 帝国油墨制造股份公司 | High-quality fine silk screenink compositions, the printed article of this ink composite of silk screen printing and the manufacture method of this printed article |
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2017
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|---|---|---|---|---|
| EP2812186A1 (en) * | 2012-02-08 | 2014-12-17 | Illinois Tool Works Inc. | Print head for stencil printer |
| CN102582341A (en) * | 2012-02-09 | 2012-07-18 | 无锡市科虹标牌有限公司 | Polycarbonate (PC) decorative board printed with three-dimensional image and printing process of PC decorative board |
| CN106068313A (en) * | 2015-01-27 | 2016-11-02 | 帝国油墨制造股份公司 | High-quality fine silk screenink compositions, the printed article of this ink composite of silk screen printing and the manufacture method of this printed article |
| CN105555034A (en) * | 2016-02-02 | 2016-05-04 | 东莞翔国光电科技有限公司 | Process of plugging holes in printed circuit board with ink |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109933004A (en) * | 2019-03-27 | 2019-06-25 | 苏芯物联技术(南京)有限公司 | The machine failure diagnosis and prediction method and system cooperateed with based on edge calculations and cloud |
| CN110757946A (en) * | 2019-10-17 | 2020-02-07 | 晋能清洁能源科技股份公司 | Scraper device suitable for solar cell screen printing |
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|---|---|
| CN107160834B (en) | 2020-03-27 |
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