| 范述捷,苏振华,张羽.CaSiO3加填纸的可脱墨性及脱墨浆性能研究[J].中国造纸学报,2021,36(3):49-53 |
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| CaSiO3加填纸的可脱墨性及脱墨浆性能研究 |
| Study on Deinkability and Properties of Deinked Pulp of CaSiO3-filled Paper |
| 投稿时间：2021-07-19 |
| DOI：10.11981/j.issn.1000-6842.2021.03.49 |
| 中文关键词: CaSiO3加填纸 脱墨性能 白度 胶黏物 纤维形态 |
| Key Words:CaSiO3-filled paper deinking properties brightness stickies fiber morphology |
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| 中文摘要: |
| 探讨了2种CaSiO3加填印刷纸的脱墨性能。结果表明，以CaSiO3为填料的1#纸样和以CaSiO3/滑石粉为填料的2#纸样均具有较好的脱墨效果，二者浮选脱墨浆料得率相同，1#浮选脱墨浆的白度为77.5% ISO，略高于2#浮选脱墨浆的73.9% ISO，1#浮选脱墨浆有效残余油墨浓度为81.24 mm2/m2，略低于2#浮选脱墨浆的115.96 mm2/m2；在脱墨过程中，1#纸样胶黏物去除效果略优于2#纸样，2种纸样初始胶黏物含量均较低，不会对生产造成影响；2种纸样的碎解浆经浮选脱墨后纤维长度均有所降低，细小纤维含量增加，1#浮选脱墨浆的纤维长度下降幅度略高于2#浮选脱墨浆；受灰分影响，1#浮选脱墨浆手抄片的强度指标较2#浮选脱墨浆手抄片略差。 |
| Abstract: |
| The deinking properties of two types of CaSiO3-filled paper were discussed. The results showed that both CaSiO3-filled paper （1#） and CaSiO3/talc-filled paper （2#） had good deinking effect， with comparable flotation deinking yields. The brightness of 1# flotation deinking pulp was 77.5% ISO， slightly higher than that of 2# flotation deinking pulp， which was 73.9% ISO. The ERIC of 1# flotation deinking pulp was 81.24 mm2/m2， slightly lower than that of 2# flotation deinking pulp of 115.96 mm2/m2. In the deinking process， the removal effect of stickies of 1# pulp was slightly better than 2# pulp. The stickies contents of both 1# and 2# pulp were low and would not affect the production. After flotation deinking， the fiber lengths of 1# and 2# repulping pulp decreased，while the content of fines increased. The decrease of fiber length of 1# pulp was slightly more than that of the 2# pulp. Due to the ash existing in the pulp， the intensity index of 1# paper was slightly lower than those of the 2# paper. |
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