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Study on Improving the Dyeing Efficiency of PG Yellow Dye on Paper Filled with Calcium Sulfate by Polyacrylamide
Received:April 20, 2021  
DOI：10.11980/j.issn.0254-508X.2021.09.006
Key Words:PG yellow dye  dyeing property  anhydrous calcium sulfate  polyacrylamide  filler retention
Fund Project:浙江景兴纸业股份有限公司校企合作项目。
Author NameAffiliationPostcode
YANG Weisong Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
AN Xingye* Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
YANG Jian Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
MA Haoran Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
LIU Liqin Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
CHENG Zhengbai Zhejiang Jingxing Paper Co.， Ltd.， Pinghu， Zhejiang Province， 314214 314214
CAO Haibing Zhejiang Jingxing Paper Co.， Ltd.， Pinghu， Zhejiang Province， 314214 314214
LIU Hongbin Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
NI Yonghao Tianjin Key Lab of Pulp and Paper， School of Light Industry Science and Engineering， Tianjin University of Science & Technology， Tianjin， 300457 300457
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Abstract:Due to the problem that anhydrous calcium sulfate （CaSO4） added to the papermaking system in the factory production practice would seriously affect the dyeing efficiency of PG yellow dye， an improvement method of adding polyacrylamide （PAM） into the slurry was proposed in this paper. The effects of cationic polyacrylamide （CPAM） and amphoteric polyacrylamide （AmPAM） on the dyeing efficiency of PG yellow dye were studied. It found that both of CPAM and AmPAM could effectively improve the dyeing efficiency of PG yellow dye when the addition of CPAM was 0.05% or AmPAM was 0.06%. In addition， it showed that the addition of two additives could also improve the retention of CaSO4 fillers. Finally， the influence mechanism of two kinds of polyacrylamide on improving the dyeing efficiency of PG yellow dye and the retention of anhydrous CaSO4 filler was further inferred.
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