利用图像分析法研究不同浆料配比对打印质量的影响

利用图像分析方法研究浆料配比和填料的种类对喷墨打印纸的打印质量的影响.根据油墨的渗透和扩散行为而导致的点的边缘锐化值、文字的羽化程度和点的喷墨打印质量指数等研究喷墨打印质量.研究结果表明：加填是影响喷墨打印纸打印质量的最重要因素.浆料配比对于以打印点的边缘锐化值、纸页的打印文字面积和点的喷墨打印质量指数表示的打印质量没有明显影响,但对于不加填和研磨碳酸钙加填的纸页,纸页打印点的边缘锐化值随着针叶木浆料占混合浆料的比值的增大而增加,这表明对于不加填纸,阔叶木浆有利于提高以点的边缘锐化值表示的打印效果.

Effect of Different Pulp Ratio on Printing Quality by Image Analysis Method

An image analysis method has been applied to study the effect of pulp ratio and the kind of fillers on printing quality of ink-jet printing paper. The ink dot sharpness, text feathering, and Ink-jet Dot Quality Index by expressing the behavior of the penetration and diffusion of ink were used to evaluate the printing quality.These results show the loading of the both fillers of the precipitated calcium carbonate and ground calcium carbonate is effective in improving the ink-jet quality, including dot sharpness, text feature, Ink jet Dot Quality Index, and the kind of fillers is also important for the good printing quality. There are no distinct effect of pulp ratio on the ink-jet printing quality of the paper .However, Dot sharpness is worse when the quantity of softwood pulp increased for the paper with no loading of fillers and the paper loaded by ground calcium carbonate. This shows hardwood pulp is efficient to improve the ink-jet printing quality with ink dot sharpness.