静电纺携香减害超细纤维功能纸在卷烟中的应用

Application of the Functional Paper Loaded by Electrospinning Superfine Fiber with Fragrant and Harm-Reducing Compounds in Cigarette

为改善薄荷醇在卷烟烟气中的稳定性、均匀性并降低烟气有害成分苯酚释放量,制备了静电纺携香减害超细纤维功能纤维素纸沟槽滤棒和压纹纸复合滤棒,考察了超细纤维功能滤棒的减害效果和对烟气薄荷醇逐口释放量的影响。结果表明:(1)沟槽滤棒中,PVPK90以静电纺超细纤维负载在纤维素纸上(1.68 mg·支/^(-1))的降酚效果(14.90%)优于涂布方式(2.52 mg·支^(-1))的降酚效果(10.22%),且对烟气焦油影响较低;PVPK90超细纤维压纹纸复合滤棒(2.4 mg·支^(-1))可降低烟气苯酚释放量至17.72%;(2)在测试的18天(沟槽滤棒卷烟)和32天(复合滤棒卷烟)内,无论是沟槽滤棒卷烟还是复合滤棒卷烟,与对照样相比,薄荷醇以静电纺超细纤维方式负载在纤维素沟槽纸或压纹纸上,逐口烟气薄荷醇的释放更具有稳定性和均匀性,是一种良好的携香减害方式。

To improve the stability and uniformity of menthol in mainstream cigarette smoke and reduce the release of phenol,grooved filter and combined filter rods were prepared respectively by loading electrospinning superfine fiber with fragrant and harm-reducing compounds on the cellulose paper and on the embossed paper,the effects of the functional filter rods on the harm reduction and on the emission of menthol were investigated in detail.The results showed that:(1)The addition of PVPK90 on the cellulose paper by electrospinning is better than by coating for the removal of phenol,the emission of phenol was significantly reduced from10.22%(2.52 mg·cig^(-1) by coating) up to 14.90%(1.68 mg·cig^(-1) by superfine fiber),while the delivery of Tar was nearly unaffected;The high percentage of phenol removed(17.72%) could be obtained even if the electrospinning superfine fiber of PVPK90 in the combined filter rod was only 2.4 mg·cigarette^(-1).(2)Compared to the reference samples,the puff-by-puff transfer amounts of menthol in mainstream smoke with grooved filter and combined filter rods electrospinned by menthol and PVPK90 were more stable and uniform during the longtime test.The results of this study provide insights for the application of aroma substances and harmreducing materials in cigarette.