People who have worked in Jinan calendar printing company all know that there will be powder falling in the printing process. What is the phenomenon of falling powder? Falling powder refers to the phenomenon that a large amount of dust generated by the vibration of the machine gathers on the surface of the printed matter during the operation of the printing machine, which makes the printed matter very ugly.

　　在分散剂的喷嘴部位和连接喷嘴的喷嘴处是粉尘容易附着的地方。整版印刷机有多达八个喷嘴。抽纸机的两侧。当电梯掉下时，轨道上的灰尘很容易附着掉下，纸张越堆积，就越容易掉下大块的灰尘。

　　It is easy for dust to adhere at the nozzle of dispersant and the nozzle connecting the nozzle. The whole press has up to eight nozzles. Both sides of the drawer. When the elevator falls, the dust on the track is easy to attach and fall. The more paper piles up, the more easy it is to fall large pieces of dust.

　　如何这个问题?无粘性机械粉末喷涂的发展并不是一个简单的操作，粉末表面的完全处理在当时是不可能的。目前，除清洗机械外，没有更好的处理粉末表面的方法。

　　How to solve this problem? The development of cohesionless mechanical powder spraying is not a simple operation, and the complete treatment of powder surface is impossible at that time. At present, there is no best way to deal with powder surface except for cleaning machine.

　　济南台历挂历印刷公司用空气枪清洗后，似乎没有灰尘，但在印刷过程中会掉粉，所以清洗后的打印机高速空转5分钟，使灰尘完全落下来;在一起，看到的玻璃衬里不能坚持灰尘。清洗次数与喷印时间长短有关，一次;如果工作24小时，两次。另外，PP涂层，后续处理，为了谨慎，先清洗，控制分散的量。

　　After cleaning with air gun, Jinan calendar printing company seems to have no dust, but the powder will fall in the printing process, so the cleaned printer idles for 5 minutes at high speed, making the dust fall completely; together, the glass lining can not adhere to the dust. The cleaning times are related to the printing time, once a day; if it works 24 hours a day, twice a day. In addition, PP coating, subsequent treatment, in order to be careful, first cleaning, control the amount of dispersion.