Label printing is not as simple as some people think, but it needs to be refined. The following Jinan label printing company introduces the phenomenon of imprint pulverization in printing, and explains our solution: how to avoid the phenomenon of pulverization in printing effect.

　　有些承印物，尤其是抛光涂布和粘土涂布的搪瓷制品，由于没有足够的粘附力将油墨牢牢固着在承印物的表面，往往只吸收油墨中的调墨油，而将金银颜料的颗粒留在表面。在纸张印刷过程中，油墨转移到纸张上干燥以后，用手摩擦印迹时，部分印迹被擦掉，这种现象即为印迹粉化故障。

　　Some substrate, especially polishing coating and clay coating enamel products, because there is not enough adhesion to hold the ink firmly on the substrate surface, they usually only absorb the ink blending oil in the ink and leave the particles of gold and silver pigment on the surface. In the process of paper printing, after the ink is transferred to the paper and dried, when rubbing the imprint with hand, part of the imprint is wiped off, which is called imprinting pulverization failure.

　　粉化现象导致金属颜色从承印物表面剥落。造成印迹粉化的原因主要是由于纸张表面的毛细孔吸附油墨中的连接科。尤其是纸质疏松的纸张吸墨性强，在印刷过程中油墨转移到纸张上后，油墨的连接料便较多的渗透到纸张里面，使有些颜料的颗粒不能被连接料包围住，纸面上，造成印迹粉化，特别是采用自行配制的金银墨调墨油，更容易产生粉化故障。

　　Powdering causes the metal color to peel off from the substrate surface. The reason for the pulverization of imprinting is mainly due to the pores on the paper surface adsorbing the linker in the ink. In particular, the loose paper has strong ink absorption. After the ink is transferred to the paper in the printing process, the ink connecting material will more penetrate into the paper, so that some pigment particles can not be surrounded by the connecting material. On the paper surface, the imprint will be powdered, especially with the self-made gold and silver ink inking oil, which is more prone to powdering failure.

　　产生粉化现象的主要原因是：

　　The main causes of pulverization are as follows:

　　①调墨油的浓度不足，渗透性物质含量较多，即使纸张的质地不是很疏松，也会由于连接料的过量渗透，造成印迹粉化。

　　① the concentration of inking oil is insufficient, and the content of permeable substances is more. Even if the texture of paper is not very loose, the excessive penetration of connecting materials will cause the imprinting to be powdered.

　　②金银墨是由金银粉末与调墨油调配而成的．粉末与连接料的亲和性能较差。当转印到纸面上后，使过多的连接料脱离金银粉末渗透到纸张内部，造成印迹粉化。

　　(2) gold and silver ink is made of gold and silver powder and ink blending oil. The affinity between the powder and the binder is poor. When transferred to the paper surface, too much connecting material is separated from the gold and silver powder and permeated into the paper, resulting in the pulverization of the imprint.

　　鉴于以上原因，在金银墨印刷时，要先印一遍底色墨，然后，采用叠印的方式再印上金墨或银墨。一方面利用底色墨降低纸张对金银墨连接料的吸收；另一方面，在底色墨未完全干燥时印金银墨，能使金银墨与底色墨牢固结合，避免印迹粉化。此外，为避免粉化故障，应将水的用量设置到更小，这是因为水的饱和度较高的油墨更易发生粉化。

　　In view of the above reasons, when printing gold and silver ink, it is necessary to print the background color ink once, and then print gold or silver ink by means of overprinting. On the one hand, the use of background ink reduces the paper's absorption of gold and silver ink connecting materials; on the other hand, printing gold and silver ink when the background ink is not completely dry can make the gold and silver ink firmly combined with the background ink and avoid the pulverization of the imprint. In addition, in order to avoid pulverization failure, the amount of water should be set to the minimum, which is because ink with higher water saturation is more prone to pulverization.

　　当在高涂布纸或搪瓷表面进行刷时，应在油墨中加入适量的干燥剂。在使用金或银墨印刷之前，通常用一种上胶涂布的常规油基透明白墨密封承印物表面。如果粉化现象已经发生，在层表面上再印一层油墨常会弥补或减轻这种现象。加印调墨油也可以克服粉化，但这样会影响金属的光泽。要想获得效果，建议使用金属版而不使用静电印版，这可以避免润版液包含有过量的甘油或乙二醇，因为这些不挥发的液体介质会减慢干燥速度。

　　When brushing on the high coated paper or enamel surface, a proper amount of desiccant should be added to the ink. Before printing with gold or silver ink, the substrate surface is usually sealed with a conventional oil-based transparent white ink coated with glue. If the phenomenon of pulverization has occurred, printing another layer of ink on the first surface will often make up or reduce this phenomenon. Adding ink transfer oil can also overcome pulverization, but this will affect the luster of the metal. For best results, it is recommended to use metal plate instead of electrostatic plate, which can avoid excessive glycerin or glycol contained in the fountain solution, because these non-volatile liquid media will slow down the drying speed.

　　以上是济南标签印刷公司为大家介绍的如何避免产生粉化现象的相关内容，想要了解更多信息，欢迎访问网站：http://www.jindingyinshua.com

　　The above is about how to avoid pulverization introduced by Jinan label printing company. For more information, please visit http://www.jingyinshua.com