高光泽彩色喷墨打印纸显色性的研究

Study on the color rendering of glossy colored inkjet printing paper

采用图像分析法,测试几种市售高光泽彩色喷墨打印纸(简称彩喷纸)在不同分辨率下打印图像的墨点和线条质量,建立纸张显色性评价指标(即显色指数),定量地反映纸张打印图像微观性能。分析高光泽彩喷纸在不同打印分辨率下的灰度级曲线,并进行显色性能的主观评价。可以看出,随着纸张打印分辨率的增加,显色指数更接近1,显色性能相应提高。对于涂布高光泽彩喷纸,微孔型涂层的Epson、HP和森智纸样比膨润型树脂涂层的甲骨文和Kodak纸样显色性好,微孔型涂层的灰度级曲线也较膨润型树脂涂层优越,因此显色指数能更好的体现高光泽彩色喷墨打印纸的显色性能。

Printing dot and line quality of market glossy colored ink-jet paper were tested by image analytical method under different resolutions. The evaluation index system of color rendering was established to express the micro-performances of printing image quantitively. The grey scale curves of glossy ink-jet papers were analyzed and visually judged. It could be found that with the resolution increased, rendering index value was close to 1 and color rendering improved. For coated glossy ink-jet papers, micro-porous type （Epson, HP and Senzhi） has better color rendering than the resinous type （Jia Guwen and Kodak） characterized by a swellable coating. Micro-porous type also has better grey scale curves than the resinous type. The color rendering performance could be characterized by color rendering index.