▎ 摘　　要

NOVELTY - The utility model is new type belongs to the tobacco filter rod production technology field, specifically relates to one kind of oxygen adding graphene and citiggrate co-round groove filter rod. The filter stick comprises position is in ring groove of internal and outside ring groove is located outside of, and inner ring groove and outer ring groove are composed of concentric circle structure, the inner ring groove from outside to inside in turn covered from inside the forming paper, inner paper, inner layer strand composed of groove, the groove of the outer ring from outside to inside in turn is wrapped outside the forming paper outside groove paper, the outer layer strand composed of. The inner groove paper, outside groove paper double side coating with oxidation graphene material. Groove paper larger than surface area, can increase contact square meter of smoke sum oxidation graphene and, at the same time because of the special concentric circles structure, can have function of anti-fake identification, increase the production technology content. The utility model is new type preparation technology is ripe, technology content is high, tar-reducing and harm effect has, with good popularization and application value.