Effects of coating formulations on the printability of inkjet paper

• Main Authors: Chen Jun-ming, 陳俊明
• Other Authors: Kuo Lan-sheng
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/19278529086455691624

碩士 === 國立中興大學 === 森林學系 === 89 === The study is to investigate the effect of ingredients pigments, binders and cationic additives in coating color on the printability of inkjet papers. The coated weight and nip pressure during supercalendering effects are described as well. Pigment and its particle size is closely related to the image’s edge Sharpness, printed color gamut’s area, optical density and color to color bleeding. Binder grades and addition levels dramatically influence the printabilities of inkjet paper too. Validation using comparisons between HST sizing and edge sharpness of inkjet printings shows no apparent effect. We report here that a combination of improved edge sharpness of image and reduced color bleeding is greatly affected with the addition of cationic additives. When coat weight is less than 8 g/m2,the edge sharpness could be improved with the increasing coat weight, but adversely affect the optical density and color bleeding. The increase in nip pressure in paper supercalendering could enhance the edge sharpness of inkjet image for water-base black dyestuff-containing ink, however, decrease for water —base black pigment-containing one. In addition, higher optical density was obtained at higher nip pressure, but has no impact on color bleeding.