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| Application of Talc in the Top Coating of Coated Paperboard |
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| DOI：10.11980/j.issn.0254-508X.2015.05.001 |
| Key Words:talc kaolin coated paperboard top coating |
| Author Name | Affiliation | | 苏艳群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 | | 杨扬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 | | 刘金刚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 | | 王武3 | 3.凉山州锡城滑石矿业股份有限公司,四川凉山,615000 |
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| Abstract:The rheology of coatings and the properties of the coated board were studied when the kaolin in the top coating formula was replaced by the talc. The results showed that the low shear viscosity of the coatings incresed slightly and the high shear viscosity fell obviously with the amount of talc increasing . The brightness, smoothness and surface water absorption of the coated board were almost unchanged when kaolin was substituted by talc. However, the delta gloss and printing surface strength were improved distinctly. In the paper machine trial, the delta gloss and printing surface strength of the coated board were also increased obviously when talc took the place of kaolin in the top coating formula. |
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