THE PERFORMANCE COMPARISON OF DIFFERENT SURFACE SIZING AGENTS FOR INKJET PRINTING

In this paper, two main surface sizing agents (Styrene maleic anhydride, SMA and Styrene acrylic emulsion, SAE) were selected to investigate the effects of sizing weight on physical and ink-jet printing performances of surface sized paper. The experimental results show that when the sizing weight of H520 was 2.0g/m(2), Cobb value was reduced by 16.0% and the water resistance was improved. When H520 sizing weight was 2.2g/m(2), the roughness was decreased evidently. While the SAE sizing weight was 5.0g/m(2), Cobb value was reduced by 21.0%. For the improvement of inkjet printing performances, when H520 sizing weight was 2.15g/m(2), the gray scale density range was 0.20 to 1.39, and the print color density and tone scope were also improved remarkably. However, the cationic SAE sizing weight was 5.0g/m(2), the printing clarity was increased significantly.