The "contamination" of cylinders and prints during the printing process is often caused by holes and folds in the paper. A hole refers to a small hole that can be seen through the paper surface under the light. The big holes are called holes. Paper with holes will have quality problems when printing. When there are large holes or holes in the paper, the ink on the printing plate or rubber cylinder is transferred from the hole to the impression cylinder, so that the impression cylinder continuously transfers the ink to the other side of the printed matter while continuing to rotate, causing Pollution damage to printed matter. When the ink is transferred to the impression cylinder, if the viscosity of the ink is high, both sides of the paper will be bonded and torn off at the same time. The torn paper sticks to the rubber cylinder or plate, and the printing failure caused by the shredded paper can also occur. Chamfering means that one corner of the printing paper is folded back, and the cornering can also cause serious printing problems. Chamfers can be divided into dead and live corners. When printing on paper with folded corners, one piece of printed matter printed on the piece of paper cannot be printed, and one piece has an image printed on the back. In addition, the ink at the corners will also be transferred to the impression cylinder, causing the impression cylinder to continuously contaminate the back of the printed matter, resulting in many waste products. Even more serious is that, if the paper is thicker and harder, the corners may damage the blanket, forcing the machine to be changed. Office Reception Desk,Small Reception Desk,Modern Reception Desk,White Reception Desk Feat Top International(China) CO.,LTD , https://www.feattop.com