黄原胶在低引燃倾向卷烟纸中的应用研究

Application of Xanthan Gum in Low Ignition Propensity Cigarette Paper

关键词:  黄原胶  低引燃倾向卷烟纸  阻燃性能

Key Words:xanthan gum  low ignition propensity cigarette paper  flame retardancy

摘要:将黄原胶以及黄原胶与无机、有机阻燃剂复配用作阻燃涂料制备低引燃倾向（LIP）卷烟纸，分析了不同涂料对卷烟纸阻燃性能及透气度、抽吸品质、光学特性的影响。结果表明，单独用黄原胶做阻燃涂料，涂布量≥6.4 g/m²时，涂布后卷烟纸的自动熄灭率＞75%，能够满足LIP卷烟的要求，但对卷烟的外观有一定负面影响；使用黄原胶-无机阻燃剂复合涂料时，涂布后卷烟纸的阻燃效果较差，即使涂布量达到10.0 g/m²也难以达到LIP要求；使用黄原胶-有机阻燃剂复合涂料，在涂布量低于4.0 g/m²时，卷烟纸也可达到LIP要求，比单独的黄原胶涂料具有更高效的阻燃效果，且对卷烟外观、吸味无明显影响。利用黄原胶-有机阻燃剂复合涂料进行阻燃卷烟纸的中试试验，当黄原胶-有机阻燃剂比例为1∶8，涂布量4.5 g/m²时，所制卷烟纸卷烟符合LIP要求。

Abstract:In this study， xanthan gum and xanthan gum combined with inorganic or organic flame retardant were used as flame retardant coatings to prepare low ignition propensity （LIP） cigarette paper. The effects of different coatings on the flame retardancy， air permeability， smoking quality and optical properties of cigarette paper were analyzed. The results showed that when xanthan gum was used alone as flame-retardant coating with amount more than 6.4 g/m²， the automatic extinction rate of flame-retardant cigarette paper was higher than 75%， which could meet the requirements of LIP cigarette， but it had some negative influence on the appearance of cigarette. When xanthan gum-inorganic flame reactant composite coatings was used， the flame retardant effect of cigarette paper was not well， it was still difficult to meet the LIP requirements even the coating amount reached 10.0 g/m². When xanthan gum-organic flame reactant composite coating was used， the LIP requirement could be met with the coating amount less than 4.0 g/m²， and it had no obvious influence on the appearance and smell of cigarette. The LIP cigarette paper was successfully produced in the pilot test when xanthan gum-organic flame reactant composite ratio was 1∶8 and the coating amount reached 4.5 g/m².