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| Study on Reducing Adsorption and Deposition of Water-based Ink Particles onto the Fibers |
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| DOI：10.11980/j.issn.0254-508X.2019.04.003 |
| Key Words:water-based ink particles temperature contact time consistency of ink particles chemical additives |
| Fund Project:天津市自然科学基金重点项目（16JCZDJC37700）；大学生创新训练项目（201810057158）。 |
| Author Name | Affiliation | | CHENG Yun1 | 1. Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457 | | ZHU Rongyao1 | 1. Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457 | | FENG Jie1 | 1. Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457 | | WANG Xinge1 | 1. Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457 | | ZHANG Hongjie1,* | 1. Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457 | | ZHANG Wenhui1 | 1. Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin, 300457 | | CHEN Shunhui2 | 2. He’nan Cigarette Industry Tobacco Flake Co., Ltd., Xuchang, He’nan Province, 461100 |
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| Abstract:During the wastepaper recycling process, it’s difficult to separate the water-based ink particles from the fibers due to its small size and hydrophilic property, leading to negative impact on the optical properties of the pulp. In this study, the influence of some parameters , such as temperature, particle consistency and contact time between the particles and the fibers on the adsorption process between water-based ink particles and softwood bleached pulp fibers were studied. The results showed that with the increase of water-based ink particle consistency, its adsorption amount onto fibers increased first then leveled off. When the consistency of water based ink particles was 0.4 g/L, the adsorption amount was close to the maximum. Increasing the temperature appropriately could reduce the deposition of ink particles on fibers. The adsorption process proceeded very fast which almost reached to the maximum in 5 min. The properties of water based ink particles could be changed by using different chemical additives. Both PAC and CPAM could increase the surface tension of ink particles. When the concentration of PAC and CPAM were 11 mg/L and 5 mg/L respectively, water-based ink particles had the highest flocculation degree, the recycled fibers had lowest ERIC and highest brightness which thanks to the least ink particles adsorption on the fibers． |
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