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无水印刷版材及工艺特点简要介绍
作者:admin 来源:http://www.sdhzyw.com 发布时间:2016-3-9 13:47:30 浏览次数:367
版材的结构由铝板基、感光树脂层、硅橡胶层组成。曝光时,见光的硅橡胶层发生反应,硅橡胶层被显影液除掉,未见光部分形成印版空白部分,形成阴图版。
The structure of the plate by the aluminum plate base, photosensitive resin, silicone rubber layer. Exposure, they see the light of the silicone rubber layer, silicone rubber layer be developer, did not see the light parts forming plate blank, the formation of Yin chart.
阴图型无水平版的图文部分微微下凹,着墨后油墨不易扩散,空白部分的硅橡胶层对油墨有排斥作用,因此,印刷时可以不用润湿液,从而避免了由润湿液引起的许多故障。无水胶印使用的油墨比有水胶印油墨的粘度量、粘着性低,主要成分是高粘度改性酚醛树脂及高沸点的非芳香族溶剂,遇热容易分解,故在印刷时,环境温度要保持适宜。
Yin pattern under no horizontal version of the graphic part slightly concave, after inking ink is not easy to spread, the blank portion of the silicone rubber layer of ink has exclusive effect, therefore, can need not wetting liquid when printing, avoiding many of the fault caused by wetting liquid. Waterless offset printing ink used than there is water amount of the offset printing ink viscosity, low viscosity, active ingredient is high viscosity modified phenolic resin and high boiling point of the aromatic solvents, easy to decompose, when it is heated in the printing, environment temperature to keep appropriate.
无水胶印,网点增大值小,网点增大值能够控制在3%以内,可以采用200~500线/in细网线,可印刷高解象力的印刷品。若与调频加网技术结合,更可印刷出无可比拟的高档精美印品。无水胶印,去除了不易控制的水,没有油墨乳化现象,印品墨色均匀、饱和度高。用无水胶印印刷时,一般消耗5张纸即可正式印刷,耗纸率低、生产效率高。无水胶印,作为一种先进的印刷技术,有可能替代传统的有水胶印。
Waterless offset printing, small branches increased value, network increases value can be controlled within 3%, 200 ~ 500 line/in fine line can be used, can print high resolution print. If combined with FM screening technology, more can print the incomparable high-grade fine print. In addition to the waterless offset printing, not easy to control the water, there is no ink emulsification phenomenon, print ink evenly, high saturation. Waterless offset printing, typically consume 5 sheets of paper can be formal printing, paper consumption rate is low, high production efficiency. Waterless offset printing, as a kind of advanced printing technology, is likely to replace traditional offset printing with water.
由于无水印刷不用润版液,所以不会产生油墨的乳化。但因印刷过程中无润湿水对版面的修补和清洗作用,版面易产生蹭脏现象。为此,无水印刷的印刷压力应低于PS版印刷。
Because of no water printing don't embellish version of liquid, so will not produce ink emulsification. But because of the printing process without the layout of repair and cleaning effect on wetting water, layout easy generation smearing phenomenon. For this, waterless printing printing pressure should be lower than PS printing.