碳酸钙改性与多元助剂组合对再造烟叶中碳酸钙留着率的影响

Effects of Various Modified Calcium Carbonate and Multi-element Retention Aid Combinations on Retention Rate of Calcium Carbonate in Reconstituted Tobacco

为提高造纸法再造烟叶片基中碳酸钙有效留着率,采用均匀试验设计方法,研究了碳酸钙填料复合改性剂(烟梗纤维X_1、阳离子淀粉X_2、硬脂酸钠X_3、六偏磷酸钠X_4)以及多元助留体系(壳聚糖X_5、瓜尔胶X_6、膨润土X_7)组合对再造烟叶片基中碳酸钙含量的影响,通过因子影响效应法分析了再造烟叶中碳酸钙留着率,并对优化后的参数组合进行了验证。结果表明:(1)7个因素对再造烟叶片基碳酸钙留着率影响的因子贡献率大小顺序为:X_3>X_2=X_4>X_7>X_5>X_6>X_1,可见阳离子淀粉改性过程(X_3,X_2,X_4)对提高碳酸钙留着有着重要作用,其次是多元助留体系(X_7,X_5,X_6);(2)两因素间的交互作用较为显著的有X_1与X_4、X_2与X_6、X_2与X_7、X_3与X_4、X_3与X_5、X_3与X_6;(3)阳离子淀粉(X_2)对碳酸钙留着率的影响速率在中高水平时,随着其水平的增加,由负效应向正效应转变。(4)与对照样品比较(碳酸钙直接添加),采用优化后的参数组合,碳酸钙留着率提高了30.46%。

In order to improve the effective retention rate of calcium carbonate in the reconstituted tobacco obtained through paper-making process, we designed the different combinations of composite calcium carbonate modifiers （ tobacco stem fiber X1 , cationic starch X2, sodium stearate X3, sodium hexametaphosphate X4 ） and multi-element retention aids （ ehitosan Xs, gnar gum X6, bentonite clay X7 ） through uniform experiment design method, studied and analyzed the effects of various combinations on the content and retention rate of calcium carbonate in the reconstituted tobacco by using the method of factor influential effect, and verified the optimized parameter combination. The results indicated that： （ 1 ） the contribution rate of seven factors to the retention rate of calcium carbonate in the reconstituted tobacco revealed the following order： X3 〉X2 = X4 〉X7 〉X5 〉X6 〉X1 ; （2） more significant interactions existed between X1 and X4, X2 and X6, X2 and X7, X3 and X4, X3 and Xs, and X3 and X6 ; （3） under the moderate and high level condition, the effect of cationic starch （ X2 ） on calcium carbonate retention rate changed from negative to positive along with the increase in the level; （4） in comparison with the check （directly adding calcium carbonate）, adopting the optimized parameter combination increased the calcium carbonate retention rate in the reconstituted tobacco sheet by 30.46%.