biodegradable cigarette filter tow, cigarette filter, e cigarette, process for making a cigarette filter tow

摘要

biodegradable cigarette filter tow, cigarette filter, and cigarette, process to manufacture a cigarette filter tow. The present invention relates to a biodegradable cigarette filter cloth comprising cellulose and cellulose acetate composite filaments, and a process for making such filter cloth comprising providing a dopant in solution comprising a mixture of cellulose and cellulose acetate. in an ionic liquid or n-methylmorpholine-n-oxide (nmmo), and spinning the mixture into a protic solvent to generate fibers or films, and converting the fibers or films into cigarette filter cloth. The invention also relates to cigarette filters and cigarettes made from such filter cloth.