印刷包装过程中为什么会出现油墨胶化?
在印刷包装过程中,有时印刷品上会出现条纹或网络商业广告的颜色不同。 网上商业广告不能用油墨印刷,脱墨辊印刷不良是由于油墨中的颜填料溶胀造成的凝胶化引起的。 油墨的凝胶化是由于其屈服值高,油墨太粘而变得像奶酪一样。 从应用上看,油墨中的颜料和填料过多,使油墨在储存过程中进入油墨凝胶或水,导致局部絮凝。
In the process of printing and packaging, sometimes there will be stripes on the print or different colors of the online commercial. Online commercial advertisements cannot be printed with ink. Poor printing on deinking roll is caused by gelation caused by swelling of pigment filler in ink. The gelation of ink is due to its high yield value, the ink is too sticky and becomes cheese-like. From the perspective of application, too much pigment and filler in the ink, so that the ink in the storage process into the ink gel or water, resulting in local flocculation.
人们采取了各种措施来防止膨胀和凝胶化,包括不断搅拌墨斗中的墨水,在墨斗广告宣传单中安装搅拌器,制作广告宣传单或在墨斗上放置铁棒来制作墨水。 向墨斗辊推动以保持墨水流动。 操作中使用中、高粘度清漆或稀释剂调整油墨(必须配合调整使用,否则油墨会继续膨胀或凝胶)。 有的厂家用流动性好、耐水性强的油墨代替油墨印刷。
Various measures were taken to prevent swelling and gelation, including constantly stirring the ink in the ink bucket, installing a blender in the ink bucket advertising flyers, making advertising flyers or placing iron bars on the ink bucket to make ink. Push the ink bucket roller to keep the ink flowing. Use medium or high viscosity varnish or thinner to adjust the ink (must be used together with adjustment, otherwise the ink will continue to expand or gel). Some manufacturers with good liquidity, water resistance ink instead of ink printing.
印刷包装油墨凝胶化和膨胀的原因:印刷包装油墨的凝胶化问题在早期油性(氧化干燥和渗透干燥)和水性油墨单张中偶尔会遇到。 传单设计制作造成凝胶化的原因是设计制作很复杂,包括油墨制造的工艺流程,如先加催干剂和后加催干剂,以及油墨的种类和质量等成分。 当油墨成分发生变化时,也会出现各种问题。
Reasons for printing and packaging ink gelation and expansion: printing and packaging ink gelation problems in the early oil (oxidative drying and osmotic drying) and water-based ink sheet occasionally encountered. Flyer design and production cause gelation is the design and production is very complex, including the printing ink manufacturing process, such as adding drying agent and drying agent, as well as the type and quality of ink. Ingredients. When ink composition changes, there will be a variety of problems.
凝胶化的原因是:油墨粘度高。 由于油墨体系中树脂的分子量太大,油墨的粘度太高,容易凝胶化; 印刷中有许多固体成分。 固体成分过多,即使是低粘度的树脂粘合剂; 印刷油墨具有高酸度。
The reason for gelation is: high ink viscosity. Because the molecular weight of the resin in the ink system is too large, the viscosity of the ink is too high, easy to gel; There are many solid components in printing. Excessive solid composition, even low viscosity resin adhesive; Printing ink with high acidity.
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