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Influence of Color Fixing Agent on Coating Quality and Image Quality of Color Inkjet Printing Paper
  
DOI：10.11980/j.issn.0254-508X.2018.09.005
Key Words:paper coating  fixing agent  picture quality
Fund Project:河南省科技攻关项目，项目号：162102210296。
Author NameAffiliation
ZHANG Yan1，2 1. Henan University of Animal Husbandry and Economy， Zhengzhou, He’nan Province, 450046； 2. Sanquan Food Co.， Ltd., Zhengzhou， He’nan Province, 450044 
SU Tie-qing1 2. Sanquan Food Co.， Ltd., Zhengzhou， He’nan Province, 450044 
CAO Yun-feng3，* 3. Nanjing Forestry University， Nanjing， Jiangsu Province， 210037 
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Abstract:The color fixation mechanism of cationic color fixing agent in color inkjet printing paper coating was analyzed. The influence of dosage of color fixing agent PolyDADMA on coatings viscosity， property of coating surface and solid density， dot gain， line sharpness and water resistance performance of inkjet printed image was researched. It was found in the experiment that the cationic color fixing agent PolyDADMA could improve the image quality and the higher dosage could realize higher solid density， smaller dot gain， higher image detail sharpness and stronger water resistance performance of various colors. However， if the proportion of PolyDADMA was higher than a certain value， viscosity of the coatings would be too high， resulting in uneven coating， and the strength of coating surface would firstly increase and then reduce. If the color fixing agent solid dosage in the coatings was up to 5 g （with 100 g silicon dioxide as reference）， the density， the fine line sharpness and the water resistance performance of image could be optimal.
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