PCB ink refers to the ink used in Printed Circuit Board (PCB). The important physical properties are the viscosity, thixotropy and fineness of the ink. These physical properties need to be known to improve the ability to use ink.
With the continuous advancement and development of China in the printing industry, China has gradually changed from the backward PCB ink producing country to the total output value of PCB in the world's second largest country.
Screen printing inks are one kind of printing inks, but there are many ways to distinguish screen printing inks. According to the characteristics of inks, drying methods, printing materials, and the state of inks are divided into many types. Such as UV drying ink (UV ink), fast fixing ink, self-drying ink, low temperature thermosetting ink, high temperature ink and so on. The development of screen printing inks in China is also based on the world's advanced level.
Some silk screen printing inks are dried by drying when color matching, lighter drying is lighter than undried, dark color is darker after drying. In addition, whether or not the color tone of the ink differs before and after drying at the time of printing is a problem that is easily overlooked. Generally speaking, through natural drying (solvent evaporation ink), the substrate is plastic, metal, paper, glass, etc., the color does not change; but if it is a ceramic color, it is colored after burning and oxidation. Can only be toned by experience. For silk screen printing inks that are dried by thermosetting and light solidification, the color varies in depth, as mentioned above. When the amount of ink is large, you can use the ink adjuster to complete the coloring in a short time.
At the same time, remind us that silk screen printing ink should be stored in a cool and dry place. If it is UV ink after opening the can, it must be placed in the refrigerator and avoid the illumination. At the same time, the user should pay attention to the shelf life of the ink. Of course, different brands of different inks can not be mixed.
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