The role of powder spraying in printing is only to prevent the sticky ink that has just been printed on the paper from contacting the paper. The effect is small but indispensable, except for printing equipment with a drying system. Most of the paper drying system is high-level paper collection on the offset press, and its price is very expensive. Few people in domestic printing companies will purchase this system when ordering printing machines. Therefore, most printing companies cannot prevent the problem of paper and ink sticking without spraying powder.
Today, with the continuous development of printing technology, printing quality is becoming the basis for the survival and development of printing companies. Powder spraying has also become an obstacle to improving the quality of modern printing. First, powder spraying destroys the printing environment, so that the operator can work in the environment of a lot of flying dust for a long time. Most printing operators inevitably have lung and tracheal diseases of one kind or another. Following the law exhibition in the printing industry, many companies have adopted imported high-speed printing equipment, the value of these equipment is also high. The owners of many printing companies joked that the printing companies are working for printing equipment manufacturers, and in a sense is also the actual situation. Therefore, how to protect your own printing equipment and give full play to the efficiency of these printing equipment is also one of the important contents of modern printing enterprise management. It is difficult to imagine that printing equipment can continue to perform well under long-term large dust. Therefore, the number of times to regularly clean the printing equipment is greatly increased, and the maintenance time and maintenance cost of the printing equipment are also greatly increased.
Secondly, there are few enterprises in commercial printing with single-sheet 8-color machines and commercial rotary machines. Most enterprises still have the problem of four plus four secondary printing. After spraying, dust particles stick to the paper, which not only affects the quality of the printing during the secondary printing, but also particles from the paper to the ink roller system , Not only affects the ink transmission but also greatly reduces the service life of the ink roller, but also seriously reduces the service life of the blanket. The cost of production increased virtually.
In the packaging industry, post-processing is becoming more and more important, but nowadays, because of the powder spraying in the printing process, the powder particles stick to the paper, which greatly increases the waste rate of glue, lamination, etc. From the consideration of product quality and production cost, it has reached a problem that cannot be ignored. At the same time, the paper in the packaging industry is heavier and the amount of ink is larger, so the particles of the powder are also larger than those in commercial printing. In this environment, the equipment often has mechanical problems in the printing receipt and transmission parts, and the maintenance costs and downtime It is also a headache for management.
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