CaSiO_(3)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 CaSiO_(3)-filled Paper

作　　者：范述捷 苏振华 张羽 FAN Shujie;SU Zhenhua;ZHANG Yu(China National Pulp and Paper Research Insitute Co.Ltd.,Beijing,100102;National Engineering Lab for Pulp and Paper,Beijing,100102)

机构地区：[1]中国制浆造纸研究院有限公司,北京100102 [2]制浆造纸国家工程实验室,北京100102

出　　处：《中国造纸学报》2021年第3期49-53,共5页Transactions of China Pulp and Paper

摘　　要：探讨了2种CaSiO_(3)加填印刷纸的脱墨性能。结果表明,以CaSiO_(3)为填料的1^(#)纸样和以CaSiO_(3)/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 mm^(2)/m^(2),略低于2^(#)浮选脱墨浆的115.96 mm^(2)/m^(2);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。The deinking properties of two types of CaSiO_(3)-filled paper were discussed.The results showed that both CaSiO_(3)-filled paper(1^(#))and CaSiO_(3)/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 mm^(2)/m^(2),slightly lower than that of 2^(#)flotation deinking pulp of 115.96 mm^(2)/m^(2).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.

关 键 词：CaSiO_(3)加填纸 脱墨性能 白度 胶黏物 纤维形态 

分 类 号：TS724[轻工技术与工程—制浆造纸工程]