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| Manufacture of Low Density Printing Paper Using Wheat Straw Chemical Pulp |
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| DOI：10.11980/j.issn.0254-508X.2017.08.006 |
| Key Words:low brightness wheat straw chemical pulp low density printing paper synthetic calcium silicate |
| Author Name | Affiliation | | 张 权1，2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 彭建军1，2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 陈雪梅1，2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 陈铃华1，2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 | | 沈臻煌1，2 | 1.中国制浆造纸研究院,北京,100102；2.制浆造纸国家工程实验室,北京,100102 |
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| Abstract:Manufacture of low density printing paper using low brightness wheat straw chemical pulp mixed with CTMP as fiber saw material and synthetic calcium silicate as fiber was studied. The results showed that, with the proportion of wheat straw chemical pulp increasing gradually, the retention rate of filler, the opacity, tensile strength and water resistance of the handsheet showed an increasing tendency, the bulk and brightness of handsheet decreased. Under similar smoothness condition compared with conventional low density printing paper made of mixed wood pulp and PCC, the low density printing paper made of low brightness wheat straw chemical pulp and synthetic calcium silicate and prepared by using dynamic sheet former had better quality, the bulk increased from 1.74 cm3/g to 1.88 cm3/g, the tensile strength increased from 34.2 N·m/g to 44.5 N·m/g, the Cobb60 decreased from 47.0 g/m2 to 35.9 g/m2, the opacity kept stable, and the brightness decreased from 80.3% to 71.7%． |
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