Conductive ink is used in electronic information products such as printed circuit boards, membrane switches, ITO touch screen processes, RFID electronic labels, etc. Compared with the production of printed circuit boards, the use of conductive inks can be printed on soft substrates. The circuit also has good conductivity, and now there are even conductive ink products such as nano-metals, organic polymers, and organic metal decomposition…
In order to pursue light, thin and short designs for 3C products, more and more electronic products are increasingly demanding conductive inks. As the name suggests, conductive ink is an ink that conducts electricity. After the ink is dissolved in an organic solvent, a large number of conductive particles are added to the ink to make an ink-type product. The conductive ink is used for special processing. The circuit is formed by printing, and the conductive ink of the new composition and preparation method can even make ultra-thin circuits or special circuits that replace the use of antennas.
The conductive ink can also embed passive components or sensing chips in the circuit, simplifying the design of electronic circuits.
Precautions for wax for printing inks in the application process
In the field of solvent-based coatings, it is often encountered that after engineers describe requirements or problems, suppliers recommend corresponding additives and solutions. After specific tests and evaluations, the problems cannot be solved, or other problems arise. The reasons and factors are quite complicated. Because the chemical structure of solvent-based coatings from resins/curing agents, solvents, pigments, fillers to additives is very different, and the interaction between the four components leads to complex interactions.
The first is the selection and adjustment of coating resin and curing agent. The main consideration is the difference in coating film shrinkage between different coatings and room temperature, crosslinking density, and top coating liquid. The degree of erosion and glass transition temperature of the primer can be adjusted by changing the resin/curing agent or adding plasticizers and adhesion promoters. On the other hand, it is necessary to consider whether the additives added in the primer formulation will Affect the adhesion between layers. For example, some anti-crater and anti-pollution additives mainly reduce the surface tension. If excessively added or the primer is not polished, the difference in interfacial tension will naturally cause the problems of shrinkage and poor adhesion between layers. Need to re-select anti-cratering additives or reduce the amount of addition. In addition to anti-cratering additives, some wax additives may also cause such problems. Generally, they can be avoided as long as they are selected according to the supplier’s recommendation and the appropriate amount of addition is used.
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