Cigarette with reduced smoke temperature and improved flavor

Abstract

A cigarette with a reduced smoke temperature and an improved flavor includes a tobacco section ( 1 ), a filter section, and a smoke backflow section arranged between the tobacco section ( 1 ) and the filter section. An inlet hole ( 3 ) is provided at the smoke backflow section near the tobacco section ( 1 ) and intercommunication with the tobacco section ( 1 ). An outlet hole ( 6 ) is provided at the smoke backflow section near the filter section and intercommunicated with the filter section. Multiple airflow baffles ( 5 ) are staggered up and down inside the smoke backflow section and form a smoke backflow channel ( 4 ) which is sinuous. A first end of the smoke backflow channel ( 4 ) is intercommunicated with the inlet hole ( 3 ), and a second end of the smoke backflow channel ( 4 ) is intercommunicated with the outlet hole ( 6 ). Smoke enters the smoke backflow section from the inlet hole ( 3 ), and then passes through the smoke backflow channel ( 4 ). In the smoke backflow section, a flow distance of the smoke is increased, and a heat exchange among hot airflow, the airflow baffles ( 5 ) and inner walls of the smoke backflow section reduces a smoke temperature.

1 - 10 . (canceled) 
     
     
         11 : A cigarette with a reduced smoke temperature and an improved flavor, comprising a tobacco section and a filter section, and further comprising a smoke backflow section arranged between the tobacco section and the filter section, wherein: an inlet hole is provided at the smoke backflow section near the tobacco section and intercommunication with the tobacco section: an outlet hole is provided at the smoke backflow section near the filter section and intercommunicated with the filter section; multiple airflow baffles are staggered up and down inside the smoke backflow section and form a smoke backflow channel which is sinuous; a first end of the smoke backflow channel is intercommunicated with the inlet hole, and a second end of the smoke backflow channel is intercommunicated with the outlet hole: smoke enters the smoke backflow section from the inlet hole, and then passes through the smoke backflow channel; in the smoke backflow section, a flow distance of the smoke is increased, and a heat exchange among hot airflow, the airflow baffles and inner walls of the smoke backflow section reduces a smoke temperature. 
     
     
         12 : The cigarette, as recited in  claim 11 , wherein: one inlet hole is respectively provided at a top and a bottom of a side of the smoke backflow section near the tobacco section: the smoke backflow channel has two smoke backflow branches; an inlet of each smoke backflow branch corresponds to one inlet hole; and the outlet hole is intercommunicated with outlets of both two smoke backflow branches. 
     
     
         13 : The cigarette, as recited in  claim 11 , wherein: the inlet hole is provided at a side of the smoke backflow section near the tobacco section; one outlet hole is respectively provided at a top and a bottom of a side of the smoke backflow section near the filter section; the smoke backflow channel has two smoke backflow branches; inlets of the smoke backflow branches correspond to the inlet hole; and an outlet of each smoke backflow branch corresponds to one outlet hole. 
     
     
         14 : The cigarette, as recited in  claim 11 , further comprising a flavor enhancement section arranged between the tobacco section and the smoke backflow section, wherein: a tobacco essence and flavor fragile capsule or an adsorption carrier with essence and flavor attached to the adsorption carrier is arranged inside the flavor enhancement section; or, the adsorption carrier is arranged on a surface of each airflow baffle with the essence and flavor attached to the adsorption carrier. 
     
     
         15 : The cigarette, as recited in  claim 14 , wherein: the adsorption carrier is prepared by foam metal, plastic material, molecular sieve, polypropylene, activated carbon, polyester, nylon fibers, porous ceramic, non-woven fabrics, carbon fibers, natural cellulose fibers or cellulosic derivative fibers. 
     
     
         16 : The cigarette, as recited in  claim 11 , wherein: the tobacco section comprises cut tobacco, tobacco sheets, an atomizing agent, an auxiliary material, a tobacco extract, and tobacco essence and flavor, wherein: the cut tobacco accounts for 40%-90% of a total weight of the tobacco section: the tobacco sheets account for 5%-50% of the total weight; the atomizing agent accounts for 2%-35% of the total weight: the auxiliary material accounts for 0-10% of the total weight: the tobacco extract accounts for 0.1%-20% of the total weight; and, the tobacco essence and flavor account for 0.01%-8% of the total weight. 
     
     
         17 : The cigarette, as recited in  claim 16 , wherein: the cut tobacco accounts for 50%-80% of the total weight of the tobacco section; the tobacco sheets account for 10%-40% of the total weight; the atomizing agent accounts for 5%-30% of the total weight: the auxiliary material accounts for 0.5%-8% of the total weight: the tobacco extract accounts for 0.5%-15% of the total weight; and, the tobacco essence and flavor account for 0.05%-5% of the total weight. 
     
     
         18 : The cigarette, as recited in  claim 11 , wherein: the inlet hole is in a shape of bell mouth. 
     
     
         19 : The cigarette, as recited in  claim 12 , wherein: the inlet hole is in a shape of bell mouth. 
     
     
         20 : The cigarette, as recited in  claim 13 , wherein: the inlet hole is in a shape of bell mouth. 
     
     
         21 : The cigarette, as recited in  claim 11 , wherein: the smoke backflow section accounts for ⅙-⅔ of a length of the cigarette. 
     
     
         22 : The cigarette, as recited in  claim 11 , wherein: the cigarette has a length of 35 mm-100 mm and an outer diameter of 3 mm-12 mm.