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First, it can significantly reduce the surface tension of the coating, improve the substrate's wettability of the coating and the fluidity of the paint film, eliminate Benard vortices and prevent bloo......
2019-11-281) Elimination of surface tension gradients; 2) Reduce the surface tension of the system. ● Organic silicon: -Significantly reduced surface tension -Good migration perf......
2019-11-281. The higher the viscosity, the slower the leveling 2. The thicker the coating film, the faster the leveling 3. The higher the surface tension, the faster the leveling......
2019-11-281. Surface tension gradient ------ liquid ------ air interface ● Surface tension gradients of the inner and outer layers cause turbulence ● Elimination of surface tension gradient is the key to obta......
2019-11-28After the coating is applied, there is a flowing and drying film forming process, and then a flat, smooth and uniform coating film is gradually formed. Whether the coating film can achieve flatness an......
2019-11-281. Acrylic emulsion itself is easily stinky. After opening the package, it will be more stinky when contacted with raw water. You can add a fungicide. If it smells like a rotten egg, add it before it ......
2019-11-271. Try a defoamer for the printing glue industry. 2. The thixotropic point needs defoaming and defoaming. Otherwise there are a lot of microbubbles. 3. Try a special defoamer for printing paste 4. ......
2019-11-27The dryness of the ink is an important technical indicator. In addition to the drying speed of the ink, it is also related to the printing speed, the drying capacity of the drying equipment and the pe......
2019-11-27The thickness of the ink refers to the degree to which solid powdery substances such as pigments and fillers mixed in the connecting section are dispersed. The thickness of the ink is also an impor......
2019-11-27The binder used in ink is mainly alkali-soluble acid resin, so the control of pH value is very important. Generally, the pH value should be controlled at 8.5 to 9.5. At this time, the printing perform......
2019-11-27In China, since flexographic printing has only emerged in recent years, when controlling ink and wash, printing workers either use inertial thinking or do not know where to start. The result is often ......
2019-11-271. Light-colored inks can be divided into three types: ① Dilution ink mainly based on dissolving agent: it has certain transparency and is suitable for multi-color overprinting of ink. ② Matting ink......
2019-11-271. Ink toning foundation Basic color ink Basic color inks are divided into three categories according to different mixing methods: primary color inks, standard inter-color inks, and standard multi-c......
2019-11-273.Relationship between molecular weight and dispersion performance and compatibility The molecular weight of the polymer-type wetting and dispersing agent must be within a reasonable range. If the mo......
2019-11-27Generally speaking, compared to inorganic pigments, organic pigments have the characteristics of smaller particle size, larger surface area, and lower polarity; while carbon black is an inorganic subs......
2019-11-27
