CN102909974A - Application of screen printing ink to flexographic printing - Google Patents
Application of screen printing ink to flexographic printing Download PDFInfo
- Publication number
- CN102909974A CN102909974A CN2012104270871A CN201210427087A CN102909974A CN 102909974 A CN102909974 A CN 102909974A CN 2012104270871 A CN2012104270871 A CN 2012104270871A CN 201210427087 A CN201210427087 A CN 201210427087A CN 102909974 A CN102909974 A CN 102909974A
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- CN
- China
- Prior art keywords
- ink
- printing
- flexographic printing
- screen printing
- flexographic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007639 printing Methods 0.000 title claims abstract description 71
- 238000007650 screen-printing Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 32
- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000007774 anilox coating Methods 0.000 claims abstract description 13
- 238000012546 transfer Methods 0.000 claims abstract description 5
- 238000007647 flexography Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 50
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010422 painting Methods 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 125000001246 bromo group Chemical group Br* 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003854 Surface Print Methods 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- -1 surface tension Substances 0.000 description 1
Landscapes
- Printing Methods (AREA)
Abstract
The invention relates to printing technology for product packaging, in particular to application of screen printing ink to flexographic printing. The screen printing ink 5-7p in viscosity is subjected to oscillation treatment to change ink liquidity before use, and even surface and no drawing grain are guaranteed for printed products. 120-mehs anilox rolls are used to finish transfer of the screen printing ink during flexographic printing. A heating device is disposed above printing rolls, drying speed of the screen printing ink in flexographic printing is increased, and accordingly the speed of flexographic printing is increased. In take-up procedure after flexographic printing, a drum dryer is connected in so as to dry finished products in flexographic printing. By series of process tests, two different printing techniques are finally combined successfully. All product tests pass related process requirements. The novel application meets requirements of clients for ink thickness, ink blackness, ink glossiness, ink leveling property, ink surface tension, ink adhesion and corresponding environmental testing standards.
Description
Technical field
The present invention relates to the typography of the packing of product, the particularly application of a kind of screen printing ink on flexography process.
Background technology
Adopt silk-screen printing technique traditional product packing (such as materials such as plastics or paperys) surface printing, but the continuous increase along with client's product category, its raw-material specification, model also change thereupon, therefore, silk-screen printing technique needs to adjust simultaneously with it, and suitable loaded down with trivial details, complicated of the process of adjusting.In order to address this problem, consider again to adopt flexography process, adopt flexography process, the levelability of ink thickness, blackness, glossiness and printing ink after its flexible painting plate ink printing, surface tension, adhesive force etc. can not satisfy again client's product requirement, therefore, this is that the technical staff faces the important topic of being badly in need of solution.
Summary of the invention
Problem in view of above-mentioned prior art existence, the objective of the invention is provides the application of a kind of screen printing ink on flexography process especially for satisfying the client to levelability, surface tension, the adhesive force of ink thickness, blackness, glossiness and printing ink and encircling accordingly the mark alignment request.
For achieving the above object, the present invention tackles key problems from the following aspects:
1. selection printing ink.For satisfying the client to the standard-required of the levelability of ink thickness, blackness, glossiness and printing ink, surface tension, adhesive force, at first choose the printing ink that is applicable to flexographic printing.General screen printing ink viscosity is all very high, have up to 25～30p, be not applicable to flexographic printing.And the viscosity of flexible painting plate ink is all lower, usually at 2～3p.Carried out engineer testing through the screen printing ink to all brands, although found than the low viscosity (screen printing ink of 5～7p) times alternative flexible painting plate inks, but, because ink viscosity is a lot of than viscosity or the height of flexible painting plate ink, therefore, find that in test this printing ink can not fully shift in flexography process, in order to overcome this defective, take before use to shake first the scheme of processing, adopt physical method to change ink flow, guaranteed simultaneously product printing rear surface evenly, without the generation of drawing pattern phenomenon.
2. select flexographic printing anilox roll order number.The defective that can not fully shift in flexography process in order further to overcome printing ink through the characteristic of flexography process is analyzed, has therefrom found corresponding solution.Flexographic printing transmits printing ink by anilox roll and finishes printing process, therefore, set about improving from the order number that changes anilox roll, by the anilox roll of multiple different meshes having been carried out for several times printing test, (anilox roll of flexographic printing use is that some high orders such as 400 orders, 200 orders are counted anilox roll usually finally to have selected 120 order anilox roll, but when using screen printing ink, above order is counted anilox roll can not well finish printing ink to the transfer of printable fabric).By changing flexographic printing anilox roll order number, realized well screen printing ink is transferred on the printable fabric of customer requirement by flexography process.
3. the increase heater promotes flexographic printing speed.After resolving the printing ink branch problem, the dry problem of printing ink has also affected the product production capacity.Although flexographic printing has exceeded serigraphy in efficient, the drying of silk-screen ink is had relatively high expectations, and is difficult to final drying under normal print speed printing speed, because the restriction of ink for screen printing slow-drying only can be carried out at low speed 3m/min flexographic printing.In order to address this problem, determine existing equipment is transformed, take to increase the scheme of heater, guaranteeing to finish printing rear printing ink can be dry at the shortest time inner surface, and then promotes flexographic printing speed.
4, increase the reel drying machine, guarantee the drying property of final products.In order to guarantee the drying property of final products, accessed the reel drying machine in the back of flexible printing machine, thoroughly solved the dry problem of the silk-screen ink existence that is applied in the flexography process.
The technical scheme that the present invention takes is: the application of a kind of screen printing ink on flexography process, it is characterized in that, adopting viscosity is the screen printing ink of 5～7p, and shake before use processing with the change ink flow, and adopt 120 order anilox roll to finish the transfer of screen printing ink in flexographic printing; Heater is installed in printing above the roller, with reach silk-screen ink in flexographic printing rate of drying so that promote the speed of flexographic printing; Adopt access reel drying machine in the winding process after flexographic printing, to reach the drying of flexographic printing final products.
The beneficial effect that the present invention produces is: by a series of engineer testing, finally successfully realized the combination of two kinds of different printing techniques.And the related process requirement has all been passed through in the test on product.The present invention be one for to satisfy the client to levelability, surface tension, the adhesive force of ink thickness, blackness, glossiness and printing ink and to encircle accordingly the innovation and application of making under the condition of mark alignment request, thereby satisfied the requirements of client to product.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment; In the flexography process that carries out plastic packaging bag, adopt Ten Japanese bar PM series ink, the initial viscosity of this series ink is 25 ± 3p, in order to make ink viscosity be reduced to the optimum range of flexographic printing, with diluent printing ink is carried out dilution process, the consumption of diluent is approximately 35%～45%, and this moment, ink viscosity can reach the range of viscosities of 5～7p.Carry out before use concussion in a hour and process, use physical method with the change ink flow, and adopt 120 order anilox roll to finish the transfer of screen printing ink in flexographic printing; Heater is installed in printing above the roller, heater is the lamp box that the super bath lamp is installed, and two 275W super bath lamps are installed in the lamp box, with reach silk-screen ink in flexographic printing rate of drying so that promote the speed of flexographic printing; Flexographic printing speed is promoted to 6m/min from 3m/min.Adopt access reel drying machine (commercially available prod) in the winding process after flexographic printing, under 80 ℃, the speed of 5m/min, product is carried out the reel drying, to reach the dry requirement of flexographic printing final products.
Such scheme is to transform and realize at existing flexible printing machine (Shanghai, Rui'an City river in Jiangsu Province which flows into the Huangpu River of Shanghai printing machinery Co., Ltd produce HSR-320B type).In order to control the irradiation temperature of heater, can slideway be installed at the printing roller, lamp box is fixed on the slideway, control heat by the irradiation distance of adjusting lamp box, guaranteeing to finish printing rear printing ink can be dry at the shortest time inner surface.
Last again to levelability, surface tension, the adhesive force of the thickness, blackness, glossiness and the printing ink that print rear printing ink with encircle accordingly the mark standard and carried out a series of detection, the final combination that has successfully solved two kinds of different printing techniques, and the experiment on product all passed through the related process requirement, namely satisfied the requirements of client to product.Technical indicator after testing is as follows:
1. meet RoHS (ring mark standard sees the following form);
| No. | Material is used in restriction | Limit content |
| 1 | Lead and compound thereof | 90PPM |
| 2 | Cadmium and compound thereof | 15 PPM |
| 3 | Mercury and mercuric compounds | 4 PPM |
| 4 | Hexavalent chromium compound | ND |
| 5 | Chlorine element (Cl) | 800 PPM |
| 6 | Bromo element (Br) | 800 PPM |
| 7 | Lead+cadmium+mercury+Cr VI sum | 90 PPM |
| 8 | Chlorine element and bromo element total concentration | 1300 PPM |
| 9 | Antimony | 700ppm |
1. print thickness: 0.005mm ± 0.0005mm;
2. blackness: 35 ± 3.5;
3. glossiness: Gu=2 ± 0.2;
4. printing surface effect uniformity is without folding line, without pressing against seal, without scratching, without the drawing pattern phenomenon;
5. sand holes＜φ 1mm, without salient point＜φ 0.5mm, 2/sq.ft, and between spacing greater than 20cm.
Claims (3)
1. the application of screen printing ink on flexography process, it is characterized in that, adopting viscosity is the screen printing ink of 5～7p, shakes before use to process to change ink flow, and adopts 120 order anilox roll to finish the transfer of screen printing ink in flexographic printing; Above the printing roller, heater is installed, to reach the rate of drying of silk-screen ink in flexographic printing and then the speed of lifting flexographic printing; Adopt access reel drying machine in the winding process after flexographic printing, to reach the drying of flexographic printing final products.
2. the application of screen printing ink according to claim 1 on flexography process is characterized in that, described heater is the lamp box that the super bath lamp is installed.
3. according to claim 1 or the application of screen printing ink claimed in claim 2 on flexography process, it is characterized in that described heater is the lamp box that two 275W super bath lamps are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104270871A CN102909974A (en) | 2012-10-31 | 2012-10-31 | Application of screen printing ink to flexographic printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104270871A CN102909974A (en) | 2012-10-31 | 2012-10-31 | Application of screen printing ink to flexographic printing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102909974A true CN102909974A (en) | 2013-02-06 |
Family
ID=47608650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104270871A Pending CN102909974A (en) | 2012-10-31 | 2012-10-31 | Application of screen printing ink to flexographic printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102909974A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733061A (en) * | 2019-03-14 | 2019-05-10 | 恩利克（浙江）智能装备有限公司 | A kind of flexographic printing system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030154871A1 (en) * | 2002-02-19 | 2003-08-21 | Mikhail Laksin | Method and apparatus for wet trapping with energy-curable flexographic liquid inks |
| CN101186123A (en) * | 2006-11-17 | 2008-05-28 | 俞建虎 | Method for manufacturing colorful flexible printing corrugated paper box |
| CN101941307A (en) * | 2010-06-09 | 2011-01-12 | 武汉华艺柔印环保科技有限公司 | Method for manufacturing wide-width color flexible preprinted corrugated carton |
| CN102173184A (en) * | 2011-03-08 | 2011-09-07 | 上海环野机械有限公司 | Narrow amplitude satellite type flexographic plate printing machine |
-
2012
- 2012-10-31 CN CN2012104270871A patent/CN102909974A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030154871A1 (en) * | 2002-02-19 | 2003-08-21 | Mikhail Laksin | Method and apparatus for wet trapping with energy-curable flexographic liquid inks |
| CN101186123A (en) * | 2006-11-17 | 2008-05-28 | 俞建虎 | Method for manufacturing colorful flexible printing corrugated paper box |
| CN101941307A (en) * | 2010-06-09 | 2011-01-12 | 武汉华艺柔印环保科技有限公司 | Method for manufacturing wide-width color flexible preprinted corrugated carton |
| CN102173184A (en) * | 2011-03-08 | 2011-09-07 | 上海环野机械有限公司 | Narrow amplitude satellite type flexographic plate printing machine |
Non-Patent Citations (1)
| Title |
|---|
| 李春圃: "网印油墨的粘度、触变及流平", 《网印工业》, no. 1, 31 January 2006 (2006-01-31), pages 35 - 37 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109733061A (en) * | 2019-03-14 | 2019-05-10 | 恩利克（浙江）智能装备有限公司 | A kind of flexographic printing system and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |