5, due to reasons such as paper quality smoothness, evenness poor, live lives resulting in the collection of paper when the paper into the station appears next volume, upturned, from the bow, wrinkling, lotus leaf and so on, causing uneven collection of paper. Before printing for the difference to be a serious quality paper hanging to dry humidity conditioning treatment, after hanging dry offset printing shop to put warehouse or stacking storage for some time, on the cardboard paper stack shelves Qishi tag printing, pressure on the heavy (large stone, iron, etc.) to make it smooth, the plane of the paper you want to knock Le treatment to increase the stress of the paper. 6, if the paper is too thin, often prone to uneven collection of paper when printing. Since the offset printing paper format usually larger (at least four open paper), and the need of water dampening tag printing, paper is too thin (such as 35 grams / square meter, 28 g / m2), from the impression and blanket cylinders After over again between water passing through the blanket to the paper, the paper will be soft no stress, it is difficult to neat collection of paper, offset printing paper is best to keep it at 52 grams / square meter or more, in order to protect the collection of paper pile delivery paper neatly. 7 Drag the relative humidity is too low, the water content of the paper is too small, prone to static electricity, the paper suck each other in prison and receive paper missing. In this case, the available static eliminator to eliminate static electricity Zhangmutou tag printing, or increase the relative humidity workshop, especially in dry weather in winter Hengli tag printing, conditional, humidifiers available on the shop floor humidity conditioning treatment. And, offset printing workshop fewer windows, the windows should be sealed, sprinkle some water on the ground in the workshop in order to play the role of the humidity. 1. The principle role of decoiler decoiler main components are the following components: clutch, tension roller and tension controller, the three form a closed-loop automatic control system publications printing, as shown in Figure for automatic adjustment of reel paper expand the speed and tension. 2. Works uncoiler is no power driven equipment, largely followed the printing group need to adjust the paper paper supply, paper supply rate is rotated by a paper pull roll. Special printing mechanics All in Print China principle, there is a force in the circumferential direction, it creates circumferential acceleration, causing the web speed gradually increased so much faster than the open web printing speed, it is necessary for controlling the rotational speed of the web of film, the control process is performed by the clutch and the paper roll to achieve. By paper reel clutch release and hold, control the functioning of the roll. Most previous devices using electromagnetic clutch clutch, but as a result of the relatively poor performance of the electromagnetic clutch, the movable piece and quiet piece easy to wear, now gradually being replaced by a pneumatic clutch. Printing process, government policies and regulation, the printing speed is not a constant value, sometimes gradually increasing, sometimes decreasing gradually, and sometimes it is a plus or minus range. In this case, how to ensure the supply of paper? How to ensure that the paper tension? An indicator of the need to control the printing market, which is a tension roller. Screen direction of the arrow marked paper movement, tension rollers do bobbing around a fixed point, the thrust of the cylinder and pull the balance sheet in order to ensure the tension roller in equilibrium. Tension roller location, indicating the tension and paper supply paper size digital printing in China, the location information input tension controller to control the tension of paper and paper supply speed. In the printing process, the tension roller fluctuate smaller the distance, the more conducive to the stability of the paper tension. Dongkeng tag printing, beyond printing (certified), tag printing from Dongguan City, often beyond packaging products factory provided. Dongguan Chang-ping beyond packaging products plant (www.dgcyp.com) Dongguan, Guangdong, printing paper leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In all walks of life beyond the printing leadership with the staff warmly welcomed the inquiry negotiations to create a better future beyond printing.