In the design and production of the relevant album, we will find that when dealing with the album design and printing, there is always the phenomenon of electrostatic paper tape. What is the reason for this? The following Jinan album design company to analyze the printing paper with electrostatic reasons.
In fact, for paper with static electricity and papermaking has a certain relationship. In general, when leaving the factory, the base paper is charged less, and the probability of charged coated paper is not large. Because printing paper (white board paper, cardboard, etc.) and coated paper are reprocessed on the basis of the original paper, even if the base paper has been charged, it will be eliminated during the processing. Generally, the paper with weight less than 80g / m2 has more static electricity, but the paper has static electricity before printing, or the static electricity before printing is not obvious, which is often the sudden increase of static electricity after imprinting. In offset printing process due to water, generally after printing with static electricity is rare, for offset printing, static electricity is mainly produced before printing.
The main reason for the paper static electricity is friction electricity. Many objects are electrified by friction. Friction between paper and calender in paper making, friction between paper and rubber roller and embossing roller during printing are important factors for electrostatic generation. The binding force of atoms in different substances is different, or they have different affinity to electrons. When two different substances are in close contact, some electrons will pass through the interface and adhere to the surface of the electron loving side due to the weak binding force of the electron sparing party. As a result of this electron transfer, a double layer is formed at the interface. In this case, if the two substances are separated rapidly, the one with the sparse electrons is positively charged because of the loss of some electrons, and the one with the electron affinity is negatively charged due to the acquisition of some electrons. This is the essence of friction electricity.
The paper, blanket, ink, plate and so on in the printing materials have different affinity and affinity to the electron. During the printing process, they are in close contact with each other under great pressure, and they are separated rapidly at a high speed, which fully meets the conditions of friction electricity generation. Therefore, it is understandable that there are tens of thousands of volts of static electricity in printing, especially some paper with static electricity before printing. The paper has generated static electricity in the manufacturing process. It is packaged before it can escape and sent to the printing plant. When it is sent to the printing plant, some static electricity is still retained, which is the reason why the paper is charged before printing. When using these papers, we should take different measures to eliminate the static electricity in combination with the actual production situation.
The above is about the Jinan album printing paper with electrostatic reasons, there are any questions about friends can come to learn more about it, we will serve you wholeheartedly.