미세섬유 기반의 생분해성 담배 필터 소재 개발 (제1보 ) - 필터 원료 제조 및 특성 분석 -

Cellulose acetate, a raw material for cigarette filter tow, is not easily decomposed in nature, causing serious problems in the ecosystem. Thus, it is necessary to develop biodegradable filter materials that can replace it. To produce a cigarette filter from microfibers derived from pulp, a way of achieving this is to fabricate a three-dimensional mesh network with cross-linked microfibers. Thus, the factors affecting the reactivity of microfibers with cross-linking agents should be investigated prior to the fabrication. In this study, five types of microfibers including cellulose nanofibrils with different particle sizes and lignin contents from pulp were prepared. The morphological, chemical, and physical properties of each of the microfiber types were characterized and compared to select potential feedstocks for the fabrication of cigarette filters. Based on analysis with optical images, Kajaani fiber analyzer, particle size analyzer, water retention value, and chemical compositions, cellulose nanofibril, kneaded organosolv pulp, and lignin-rich microfibrillated cellulose were shown to have relatively high hydroxyl groups, indicating that they are potential feedstocks for the cigarette filter.