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| 煅烧高岭土种类和用量在涂布牛卡纸中的应用研究 |
| Application of the Type and Dosage of Calcined Clay in Coated Kraft Paper |
| 收稿日期：2023-08-22 |
| DOI：10.11980/j.issn.0254-508X.2024.03.012 |
| 关键词: 煅烧高岭土 二氧化钛 遮盖性能 涂布牛卡纸 |
| Key Words:calcined clay titanium dioxide coverage coated kraft paper |
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| 摘要:研究了煅烧高岭土替代二氧化钛在涂布牛卡纸涂料中的应用可能性，分析了煅烧高岭土的基本性能，尤其是遮盖性。在涂布牛卡纸芯涂涂料的应用中，探讨了煅烧高岭土种类和用量对涂布牛卡纸性能的影响。结果表明，高吸油煅烧高岭土可以赋予涂层优良的遮盖性能，纸张不透明度达90%以上；添加高吸油煅烧高岭土的涂布牛卡纸白度可达87%以上，光泽度为52.2%~54.1%，印刷光泽度为82%~86%，油墨吸收性为17%~20%，与较高二氧化钛用量的涂布牛卡纸相比，各项指标均未出现明显差距。综合各性能指标，煅烧高岭土的适宜用量为47份，可显著降低涂布牛卡纸的生产成本。 |
| Abstract:The possibility of calcined clay instead of titanium dioxide， which was used on the coated kraft paper was investigated in this paper. The basic properties of calcined clay， especially the coverage were analyzed. The effects of calcined kaolin type and dosage on the properties of coated kraft paper were discussed in the application of mid-coating for coated kraft paper. The results showed that high oil absorption calcined clay provided excellent opacity to the coating， with paper opacity level of over 90%. The coated kraft paper with added high oil absorption calcined clay could reach whiteness of more than 87%， gloss of 52.2%~54.1%， printing gloss of 82%~86%， and ink absorption of 17%~20%. Compared to coated kraft paper with higher dosage of titanium dioxide， there was no significant difference in the indicators. Combined performance indicators， the appropriate dosage of calcined clay was 47 parts， which could significantly reduce the production cost of coated kraft paper. |
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