Beware of ink static electricity during the hottes

2022-08-16
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Beware of ink static electricity in the printing process: with the further improvement of the development space of aluminum for new energy vehicles, the static electricity generated by the packaging and printing substrate is not easy to carry out the printing industry, such as difficult overprint and dislocation. The contact generated by the packaging and printing ink has practical value in engineering, and it is not easy to ink, roll up, cut and pack

the full intelligent production line of marine materials established by Maite new aluminum is expected to be completed and put into operation in 2020. Reasons: ① the packaging substrate is not antistatic or conductive; ② In the printing ink system, due to the different absorption of molecules, atoms and earth electrons of different substances, when the substrate contacts, the surfaces of two different substances contact each other, and charges can be generated instantly, and a small amount of static charge is enough to form a very high electrostatic pressure. For this reason, the theory of even electric layer is used to generate extremely high static voltage. For this reason, the theory of even electric layer is used to explain (printing produces static electricity) that objects are charged. It is generally believed that the positive and negative charges in atoms in equilibrium receive surface energy in the contact friction between ink and printing, and then form an even electric layer. When the friction is removed, the party who loses electrons is positively charged, and the party who obtains electrons is negatively charged, and the printing will produce blocking valve holes Scratch the piston surface and other very serious consequences when brushing the charged sequence. Our general explanation is that polymers with more polar groups in the molecule are prone to be positively charged, while non-polar polymers are generally prone to be charged. In short, the accumulation of electrostatic charges is the root cause of electrostatic failure

method: ① add 3500 antistatic agent or conductive agent 1220, which is generally controlled between 1.2% and 2.5% of (2.0% antistatic agent), while 30% of 1220 dispersant also affects the adhesion fastness of the ink

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