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印刷时花版或者糊版应该怎么弄?

来源:http://www.shengfengyinshua.com/ 日期:2021-04-26 发布人:admin 在印刷过程中,印版上的网点缩小、空虚、消失,从而导致图文细小线条、文字的消失,这种现象叫花版。花版是更常见的故障之一,并且会反复出现,花版发生时,高调的细网点很快就会丢失。因此在实地印刷中,因版基亲油基础破坏也会产生这种花白现象。
In the process of printing, the dot on the printing plate shrinks, empties and disappears, which leads to the disappearance of fine lines and characters. This phenomenon is called patterning. Patterning is one of the most common faults, and will occur repeatedly. When patterning occurs, high-profile fine dot will be lost soon. Therefore, in the field printing, because of the damage of plate base lipophilic base, this kind of graying phenomenon will also occur.
花版产生的原因:
The causes of the pattern are as follows
1.润版液用量过大;
1. The amount of fountain solution is too large;
2.压力偏小容易出现花版,但压力调整过大后又容易磨损印版,严格按照技术要求合理调整印刷压力;
2. The printing plate is easy to appear when the pressure is too low, but it is easy to wear the printing plate when the pressure is too high. The printing pressure should be adjusted reasonably in strict accordance with the technical requirements;
3.润版液酸性强弱因素;
3. The acidity of fountain solution;
4.水、墨辊调节不当或水、墨辊老化和变形也容易出现花版;
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4. Improper adjustment of water roller and ink roller or aging and deformation of water roller and ink roller are easy to produce pattern;
5.由承印物表面不平整或颜色不均匀而引起。
5. Caused by uneven surface or uneven color of substrate.
花版需要及时发现,找出原因,采取相应的措施是完全可以避免的。
Pattern need to be found in time, find out the reason, take corresponding measures can be avoided.
糊版作为另一种印刷故障也会经常遇到,其特点是版面网点扩大变形,互相粘连,使印刷品的层次模糊不清。发生糊版故障后,针对油墨的性质,用适当的溶剂进行擦洗。擦洗时注意从印刷面开始,由中间向外围轻轻擦拭。擦拭后检查印版,如有缺损要及时修补,修补后可重新开始印刷。
As another kind of printing failure, paste printing is often encountered, which is characterized by dot expansion, deformation and mutual adhesion, which makes the level of the printed matter blurred. In the event of paste failure, according to the nature of the ink, with the appropriate solvent for scrubbing. When scrubbing, pay attention to start from the printing surface and gently wipe from the middle to the periphery. Check the printing plate after wiping, if there is a defect, repair it in time, and restart printing after repair.
造成糊版的原因有:
The causes of paste are as follows:
1.水量控制不好;
1. Poor water control;
2.输墨量太大和油墨太稀;
2. Too much ink and too thin ink;
3.印刷压力太大。处理方法有如下几种:1.油墨中添加调墨油;2.增大供水量,尤其是 增大药水酸值;3.采用浓度大的油墨,尽量使印迹薄一些;4.选用较高表面张力的药水;5.调整印版和橡皮辊筒之间的压力;6.减少干燥剂;7.调换较快干型的树脂墨。
3. Too much printing pressure. The treatment methods are as follows: 1; 2. Increase the water supply, especially the acid value; 3. Use high concentration ink to make the imprint thinner as far as possible; 4. Choose the liquid medicine with higher surface tension; 5. Adjust the pressure between the plate and the rubber roller; 6. Reduce desiccant; 7. Change the fast drying resin ink.
花版和糊版一定要及时解决,不及时只会造成更大的损失,所以小问题在印刷来说也会是大瑕疵,细心总是会得到更加好的印品。
Pattern and paste version must be solved in time, not in time will only cause greater losses, so small problems in printing will also be big defects, careful will always get better prints.
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