| 摘要 |
PURPOSE: To eliminate fan out incapable of being achieved by one wrinkle roller and the slip between respective rings and a web, to prevent the generation of contamination even if the ink on the rings is retransferred to a next pattern and to automatically contract the width of the web corresponding to the stretching of the web in the width direction thereof. CONSTITUTION: The positions of the respective rings 14 of split type wrinkle rollers 11, 11' in the width direction of a web are adjusted corresponding to the stretching of the web at respective positions in the width direction thereof and the pressing forces to the web of the respective rings 14 of the split type wrinkle rollers 11, 11' are adjusted and the slight undulation in the width direction of the web is generated by the pressing forces and the tension of the web to contract the width of the web corresponding to the stretching in the width direction of the web. This contracted width of the web is set to the original width of the web at the printing position due to the blanket cylinder of a perfecting unit, that is, the width of the web entering a first stage perfecting unit to set color space register shift to a tolerance range. |
