Computer to conventional plate （CTCP） technology is getting more and more attention in printing industries. In this paper we report a nitrogen plasma light source generated in hollow cathode discharge （HCD）, Which...Computer to conventional plate （CTCP） technology is getting more and more attention in printing industries. In this paper we report a nitrogen plasma light source generated in hollow cathode discharge （HCD）, Which is used for pre-sensitivity （PS） plate exposure. The N2 molecule emits abundant spectrum ranging from 350 nm to 460 nm. With the voltage of 580 V, current of 1.8 A and pressure of 70 Pa in the discharge an optical power density of 0.46 mW/cm2 is obtained. The optical power density could be further increased with optimizing the lens system. The phototonus efficiency of this source is discussed in detail based upon the chemical principle and the FTIR analysis on the coating material.展开更多
UVCTP解决了CTP普及过程中存在的版材价格高等问题，同时也为数字印前制版业的发展开拓了另一片蓝海，奠定了平民化发展的基石。UVCTP也叫CTcP，是Computer To Conventional Plate的英文缩写，是指使用uV光源在传统Ps版材上进行计算机...UVCTP解决了CTP普及过程中存在的版材价格高等问题，同时也为数字印前制版业的发展开拓了另一片蓝海，奠定了平民化发展的基石。UVCTP也叫CTcP，是Computer To Conventional Plate的英文缩写，是指使用uV光源在传统Ps版材上进行计算机直接制版的设备，以能够使用普通PS版材的优势进入印刷行业，沿用传统紫外光晒版的基本成像原理，光源基本没有改变。但是减少传统工艺中的出胶片，人工拼版和晒版等工艺，可节省耗材等相关费用。展开更多
基金the scientific research common program of Beijing municipal commission(No.KM200710015002)the Beijing elitist funds (No.20051D0500403)
文摘Computer to conventional plate （CTCP） technology is getting more and more attention in printing industries. In this paper we report a nitrogen plasma light source generated in hollow cathode discharge （HCD）, Which is used for pre-sensitivity （PS） plate exposure. The N2 molecule emits abundant spectrum ranging from 350 nm to 460 nm. With the voltage of 580 V, current of 1.8 A and pressure of 70 Pa in the discharge an optical power density of 0.46 mW/cm2 is obtained. The optical power density could be further increased with optimizing the lens system. The phototonus efficiency of this source is discussed in detail based upon the chemical principle and the FTIR analysis on the coating material.
文摘UVCTP解决了CTP普及过程中存在的版材价格高等问题，同时也为数字印前制版业的发展开拓了另一片蓝海，奠定了平民化发展的基石。UVCTP也叫CTcP，是Computer To Conventional Plate的英文缩写，是指使用uV光源在传统Ps版材上进行计算机直接制版的设备，以能够使用普通PS版材的优势进入印刷行业，沿用传统紫外光晒版的基本成像原理，光源基本没有改变。但是减少传统工艺中的出胶片，人工拼版和晒版等工艺，可节省耗材等相关费用。
