CN1528591A - Method for printing miniature corrugated board by direct offset printing - Google Patents
Method for printing miniature corrugated board by direct offset printing Download PDFInfo
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- CN1528591A CN1528591A CNA2003101079008A CN200310107900A CN1528591A CN 1528591 A CN1528591 A CN 1528591A CN A2003101079008 A CNA2003101079008 A CN A2003101079008A CN 200310107900 A CN200310107900 A CN 200310107900A CN 1528591 A CN1528591 A CN 1528591A
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Abstract
The invention discloses a printing method of direct-hectographing micro corrugated board, its technical flow including: selecting printing corrugated board, mackintosh, printing ink, fountain solution and printing plate material; debugging the printer; adjusting printing pressure and monitoring the thickness of the micro corrugated board before and after printed and printing screen dots. Its character: the unit quality of the micro corrugated board is controlled at 380-440g/sq m, the material of the micro corrugated board is 185g/sq m heavily coated white kraft plus 90g/sq m corrugated original paper plus 140g/sq m white kraft; the water ratio is controlled at 7-9%; the corrugation is perpendicular to printing line pressure; the printing ink emulsifying rate is controlled at 15-18%; it selects the mackintosh whose screen dot restoring rate is not less than 95%; the printing plate material is a high-fidelity TP printing plate to truly restore screen dots. It has good presswork color restoring effect, clear image, etc.
Description
One, technical field:
The present invention relates to the printing process of minitype corrugation cardboard, particularly disclose a kind of printing process of direct hectographic printing minitype corrugation cardboard, belong to the new technology in the paper print field.
Two, background technology:
Because minitype corrugation is hollow cardboard, if squeegee pressure is excessive, corrugation very easily is out of shape during printing.And flexo is the lightest a kind of mode of printing of squeegee pressure in the current printing technology, so flexo minitype corrugation plate is adopted the earliest a kind of printing technology.
Yet along with growth in the living standard, people have higher requirement to the printing quality of corrugated case.Flexo minitype corrugation plate is because its squeegee pressure is light, the printing net-point reduction effect is poor, normal phenomenons such as high light place loses idea, shadow place scumming, lacks level, dot gain is serious occur, thereby influenced the quality of printed product, make flexographic printing march meticulous print field and obstacle occurs.(seeing " printing technology " 2001.10-2 phase)
Based on flexo above deficiency in press, owing to offset printing high quality printing, the standardization of height, reliable and stable advantages such as printing quality, offset printing minitype corrugation plate is become new research object immediately again.And the material that carries out offset printing at present all adopts solid cardboard, does not still have the precedent of direct offset printing minitype corrugation plate at present in China.
Three, summary of the invention:
The present invention discloses a kind of printing process of direct hectographic printing minitype corrugation cardboard in order to solve the deficiencies in the prior art.The technical problem that the present invention need solve when offset printing minitype corrugation plate has: the plastic deformation of corrugated board when how to reduce printing; In order to guarantee normal printing, how this carries corrugated board during printing; The correct selection of printing ink; The choose reasonable of fountain solution.
The present invention is achieved in that a kind of printing process of direct hectographic printing minitype corrugation cardboard, and technological process comprises the selection of printing corrugated cardboard, blanket, printing ink, fountain solution, printing plate; The debugging of printing machine; The adjusting of squeegee pressure, and print monitoring preceding, that print back minitype corrugation cal(l)iper and printing net-point; If the variation of minitype corrugation cal(l)iper is little, the printing net-point reduction effect is good, then carry out the batch printing, it is characterized in that:
A) selection of minitype corrugation cardboard: minitype corrugation cardboard unit mass is controlled at 380g/m
2～440g/m
2, the employing material is 18g/m
2Recoat white heifer card+90g/m
2Fluting medium+140g/m
2White heifer card; Minitype corrugation cardboard moisture content is controlled at 7%～9%;
B) selection of minitype corrugation cardboard printing direction: adopt raw silk rings minitype corrugation cardboard, and the corrugation direction is perpendicular with the printing line pressure:
C) control of ink-water balance in the printing process: water-pickup of ink is controlled between 15%～18%;
D) selection of blanket: the blanket that can accurately pass bat printing brush site and the satisfactory site of dot gain rate, printing back percent reduction 〉=95%;
E) selection of printing plate: adopt high-fidelity CTP forme to the true reduction in site.
Described printing ink is selected EU1010 type printing ink.The pH value of described fountain solution is controlled at 5.4～5.6, conductance is controlled between 1600～1800 μ s.It is pneumatic location that described printing machine conveyer is selected vacuum absorption device, positioner.Described squeegee pressure is controlled in the scope of 0.08～40.09mm.
The invention has the beneficial effects as follows: compare with flexo minitype corrugation plate, printing color rendition of the present invention is effective, image is more clear, impressing pattern more is rich in stereovision.The present invention is through after the test of many times, and printing quality has reached the requirement of company standard, surpasses national standard.
The present invention also has the following advantages:
1. novelty of the present invention
A. the innovation of mode of printing
The printing machine of product application enhancements of the present invention carries out the printing that thickness is the 1mm cardboard, should realize the effect of high-resolution printing reduction, can not make microwatt material compressive deformation again, thereby produce the consumer package of low grammes per square metre, high strength material.
B. select the innovation on the material
Product of the present invention adopts the fine flour ox card of recoat cloth, the minitype corrugation cardboard of its production can overcome the distortion under the squeegee pressure and fail the difficulty of paper continuously, its recoat cloth technology makes the print product color and luster full, wherein thereby ox card liner makes cardboard have the requirement that certain resistance to compression water proofing property reaches commodity packaging, is more suitable for selling the utilization and the popularization of transportation and packing.
C. process innovation
Corrugated board directly printing on the adagio printing machine only in the past, but printing effect does not reach the level of hectographic printing, if expect the printing effect of hectograph high-resolution, then will adopt the technology of printing back mount earlier.Exploitation of the present invention has remedied this blank on China's offset printing history, it has changed the technological process of miniature carton package printing, helping saving material in resource, material consumption, reduce cost, shorten production cycle etc. and satisfy the requirement of all kinds of exquisite package designs, is the upgraded product of export packing.
2. the advance of product of the present invention
A. the minitype corrugation cardboard technology of low grammes per square metre is saved the wrapping paper resource more, has saved about 25% approximately.Help environmental protection cause protection environment for human survival, meet the demand for development of green package.For the China's foreign trade outlet contributes.
B. the utilization of this product has been played recognition reaction to the packing of new high-tech enterprise's product.Help protecting brand.If when processing minitype corrugation paper board material, increase the mark function of preprinting of inner layer material, more can help the consumer to discern product.
C. standardized production makes the steady quality of this product reliable, and laterally vertical resistance to compression burst index of this packing of product improves greatly.Product of the present invention will be produced in batches, be bound to be subjected to the consistent favorable comment of client.
Four, description of drawings:
Accompanying drawing 1 is a raw silk rings minitype corrugation cardboard printing direction schematic diagram;
Accompanying drawing 2 is that the blanket printing net-point enlarges curve map;
Accompanying drawing 3 is typography flow diagrams of the present invention.
Five, the specific embodiment:
Accompanying drawing 3 is typography flow diagrams of the present invention, below each link of flow chart is elaborated.
I is by the correct plastic deformation of selecting to reduce with the application corrugated board corrugated board
1, the choose reasonable of corrugated paper board
The quality of corrugated board quality is the precondition that influences the corrugated board plastic deformation.Since printing ink during the offset printing time of releasing, blanket to paper to peel off tension force very big, tend to cause that the paper shedding falls phenomenons such as hair, in order to overcome the problems referred to above, require that the printing paper is level and smooth, little, the surface tension intensity height of the distortion of corrugation, printing surface papery ground is evenly down for impression.The present invention selects minitype corrugation cardboard unit mass to be controlled at 380g/m
2～440g/m
2, the employing material is 185g/m
2Recoat white heifer card+90g/m
2Fluting medium+140g/m
2White heifer card.
2, the selection of corrugated board printing direction
Very easily distortion behind the F corrugated board pressurized, through testing when adopting the horizontal hair corrugated board printing, because the corrugation direction is consistent with track pressure, the plastic deformation of horizontal hair corrugated board is big and corrugation conquassation phenomenon is arranged, and printing is difficult; And when adopting the raw silk rings corrugated board printing, because the corrugation direction is vertical with the track pressure direction, thereby disperseed track pressure, significantly reduced the plastic deformation of corrugated board, no corrugation conquassation phenomenon takes place, and printing net-point can effectively be reduced, thus the good transfer performance in site when embodying offset printing.Based on above-mentioned analysis of experiments, should select raw silk rings minitype corrugation cardboard as offset printing material (seeing accompanying drawing 1).
3, the control of corrugated board water content
The too high meeting of the moisture content of cardboard causes the corrugated board deflection not enough, thereby is out of shape when causing corrugated board printing, influence printing chromatography quality; And moisture content is crossed low cardboard overdrying, then easily causes the cardboard shedding to fall a mao phenomenon.The applicant has determined corrugated board moisture content printing effect the best in 7%～9% scope through repeated test.
II is by the correct plastic deformation of selecting blanket to reduce corrugated board
1, the selection of hardness: the hardness of blanket is the key that printing net-point shifts integrality, the hardness height, and forme easy to wear, but the site transfer is clear; Hardness is low, and the site is yielding.
2, compression is little: in the high speed printing process, the compression of blanket long term periodicities produces compression fatigue, can cause permanent deformation for a long time, and blanket thickness is reduced, and elasticity reduces, and hardness increases.
3, good printing ink transmits performance: the intermediate carrier that blanket transmits as the site must possess the transmission performance of good printing ink adsorption capacity, printing ink and stronger repellency energy.
4, surperficial oil resistant, solvent resistance: the surperficial glue-line of blanket must have good oil resistant, anti-solvent ability, prevent because of the contact print process in chemicals expand, cause site distortion.
5, percentage elongation is suitable: require the blanket background fabric fine and closely woven even, bright and clean firmly, expansion and contraction is little, good with inner glue layer overlapping bond properties, be difficult for dividing, direction is definitely vertical in length and breadth.Can avoid so just that blanket easily is stretched in the printing process, glue-line attenuate, elasticity reduce, and can cause phenomenons such as dot gain distortion, register trouble.
The blanket that uses in the present invention's test, it has just possessed the correct transfer character in corrugated paper offset printing site.
Its printing net-point enlarges curve such as accompanying drawing 2 shows.
The printing net-point curve data is listed as follows in the accompanying drawing 2:
| Printing | 19.1％ | 31.6％ | 45.7％ | 59.1％ | 68.3％ | 82.2％ | 87.9％ | 92.8％ | 97.7％ |
| The | 10％ | 20％ | 30％ | 40％ | 50％ | 60％ | 70％ | 80％ | 90％ |
From tables of data as can be known: the site on the forme is substantially correctly shifted, thus guaranteed print the true reproducibility of product, that is to say that selection can accurately pass the blanket of bat printing brush site and the satisfactory site of dot gain rate, printing back percent reduction 〉=95%.
III, in order to guarantee normal printing, how this carries corrugated board during printing
The F corrugation is thicker than normal printing, causes to resemble and regulates defeated paper part and positioner the plain paper; In order to ensure reliable paper feed, to avoid paperboard surface is produced damage, defeated paper part and positioner should be selected vacuum suction, pneumatic power positioner.
In addition, implement also need pay attention to technical factor in the inventive method:
1, the choose reasonable of printing ink
Therefore corrugated board is different from common cardboard, and there is concave-convex edge shape on the surface, and surface unbalance stress during printing will select good fluidity, viscosity is low, glossiness is high, rate of drying is general EU1010 type printing ink to print.
2, the correct selection of fountain solution
In trial-manufacturing process, by repetitious test, reach a conclusion: the pH value of fountain solution is between 5.4～5.6, and conductance is printing effect the best between 1600～1800 μ s scopes.
3, the control of ink-water balance in the printing process
Water-pickup of ink is controlled between 15%～18%.
4, the selection of blanket
Can accurately pass the blanket of bat printing brush site and the satisfactory site of dot gain rate, printing back percent reduction 〉=95%.
Claims (5)
1. the printing process of a direct hectographic printing minitype corrugation cardboard, technological process comprises the selection of printing corrugated cardboard, blanket, printing ink, fountain solution, printing plate; The debugging of printing machine; The adjusting of squeegee pressure, and print monitoring preceding, that print back minitype corrugation cal(l)iper and printing net-point; If the variation of minitype corrugation cal(l)iper is little, the printing net-point reduction effect is good, then carry out the batch printing, it is characterized in that:
A) selection of minitype corrugation cardboard: minitype corrugation cardboard unit mass is controlled at 380g/m
2～440g/m
2, the employing material is 185g/m
2Recoat white heifer card+90g/m
2Fluting medium+140g/m
2White heifer card; Minitype corrugation cardboard moisture content is controlled at 7%～9%;
B) selection of minitype corrugation cardboard printing direction: adopt raw silk rings minitype corrugation cardboard, and the corrugation direction is perpendicular with the printing line pressure;
C) control of ink-water balance in the printing process: water-pickup of ink is controlled between 15%～18%;
D) selection of blanket: the blanket that can accurately pass bat printing brush site and the satisfactory site of dot gain rate, printing back percent reduction 〉=95%;
E) selection of printing plate: adopt high-fidelity CTP forme to the true reduction in site.
2. the printing process of direct hectographic printing minitype corrugation cardboard according to claim 1 is characterized in that: described printing ink is selected EU1010 type printing ink.
3. the printing process of direct hectographic printing minitype corrugation cardboard according to claim 1 is characterized in that: the pH value of described fountain solution is controlled at 5.4～5.6, conductance is controlled between 1600～1800 μ s.
4. the printing process of direct hectographic printing minitype corrugation cardboard according to claim 1 is characterized in that: it is pneumatic location that described printing machine conveyer is selected vacuum absorption device, positioner.
5. the printing process of direct hectographic printing minitype corrugation cardboard according to claim 1 is characterized in that: described squeegee pressure is controlled in the scope of 0.08～0.09mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101079008A CN1317136C (en) | 2003-10-14 | 2003-10-14 | Method for printing miniature corrugated board by direct offset printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101079008A CN1317136C (en) | 2003-10-14 | 2003-10-14 | Method for printing miniature corrugated board by direct offset printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1528591A true CN1528591A (en) | 2004-09-15 |
| CN1317136C CN1317136C (en) | 2007-05-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101079008A Expired - Fee Related CN1317136C (en) | 2003-10-14 | 2003-10-14 | Method for printing miniature corrugated board by direct offset printing |
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| CN (1) | CN1317136C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991298A (en) * | 2014-04-29 | 2014-08-20 | 佛山市绿之彩印刷有限公司 | Offset printing process of fine corrugated board |
| CN104890394A (en) * | 2015-06-16 | 2015-09-09 | 合肥吉科新材料有限公司 | Faint scent fountain solution and preparation method thereof |
| CN105711149A (en) * | 2016-02-17 | 2016-06-29 | 芜湖卷烟材料厂 | Production process for high-strength carton |
| CN106864029A (en) * | 2017-02-14 | 2017-06-20 | 东莞金杯印刷有限公司 | A kind of presetting method of intelligent ink |
| CN113858842A (en) * | 2021-09-18 | 2021-12-31 | 浙江武义明招印业有限公司 | High-quality printing method of flexographic printing machine capable of controlling printing quality |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203741A (en) * | 2018-09-20 | 2019-01-15 | 华蓥市职业教育培训中心 | A kind of printing technology of corrugated case |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19952802A1 (en) * | 1999-11-02 | 2001-05-03 | Roland Man Druckmasch | Printing unit for printing corrugated cardboard |
| KR100392617B1 (en) * | 2000-06-22 | 2003-07-28 | 박이종 | an offset printing machine for thick sheet paper |
-
2003
- 2003-10-14 CN CNB2003101079008A patent/CN1317136C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991298A (en) * | 2014-04-29 | 2014-08-20 | 佛山市绿之彩印刷有限公司 | Offset printing process of fine corrugated board |
| CN103991298B (en) * | 2014-04-29 | 2017-06-06 | 广东绿之彩印刷科技股份有限公司 | A kind of offset printing process of tiny corrugated paper board |
| CN104890394A (en) * | 2015-06-16 | 2015-09-09 | 合肥吉科新材料有限公司 | Faint scent fountain solution and preparation method thereof |
| CN105711149A (en) * | 2016-02-17 | 2016-06-29 | 芜湖卷烟材料厂 | Production process for high-strength carton |
| CN106864029A (en) * | 2017-02-14 | 2017-06-20 | 东莞金杯印刷有限公司 | A kind of presetting method of intelligent ink |
| CN113858842A (en) * | 2021-09-18 | 2021-12-31 | 浙江武义明招印业有限公司 | High-quality printing method of flexographic printing machine capable of controlling printing quality |
| CN113858842B (en) * | 2021-09-18 | 2023-05-23 | 浙江武义明招印业有限公司 | High-quality printing method of flexographic printing machine capable of controlling printing quality |
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| Publication number | Publication date |
|---|---|
| CN1317136C (en) | 2007-05-23 |
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Granted publication date: 20070523 Termination date: 20181014 |