The cigaratte filter that contains polypropylene fibreIt is material modified to the invention belongs to unfiltered cigarette.
The traditional material of unfiltered cigarette is the cellulose acetate rod, though be widely used, the material cost height is the shortcoming that exists.For reducing cost, once attempted to replace the cellulose acetate rod, but that polypropylene fibre does not have is bonding with polypropylene fibre rod, easily loose into fine, soft fur, be unfavorable for reclaiming process operation, and its smoke smell is not widely accepted, so only be used for low-grade cigarette.
The objective of the invention is to make a kind of new unfiltered cigarette that contains polypropylene fibre, the cigarette that this filter is chewed is jealous chews cigarette near traditional acetate fiber filter, but it is cheap that price is chewed cigarette than cellulose acetate, the invention provides three kinds of material modification schemes: the first string is polypropylene fibre to be made cigarette with bonding drying of adhesive that contains acetone cellulose acetate and ester class or natural evaporation chew rod for this reason, content of acetone is 60~98% in the adhesive, cellulose acetate is 1~20%, ester class 1~20%, it is that main body adds the cellulose acetate additive that second scheme is to use the ester class, improve the filter-tip cigarette smell of polypropylene fibre, can be when the polypropylene fibre moulding, spray or sticking this additive of wiping, wherein the acetate fiber cellulose content is not higher than 15%, addition is not higher than 20%, use the polypropylene fibre of additive to chew the smoke smell sweet-smelling, the medium-to-high grade cigarette of suitable for making, the 3rd scheme is to make the compound unfiltered cigarette of acetate fiber-polypropylene fibre, promptly connect polypropylene fibre and chew rod at the cellulose acetate rod, becoming the compound filter of cigarette chews, reach the filter of raising cigarette and chew the filtration resultant effect, and reduce the purpose that cigarette is chewed cost, cellulose acetate was 1: 1 with the length ratio of polypropylene fibre rod during compound cigarette was chewed, 1: 2, or 2: 1.
Three kinds of embodiments provided by the invention can both reach and reduce the cigarette filter material cost, improve filter effect, increase hardness, and keep the jealous good action of former cellulose acetate rod filter-tip cigarette.
Embodiment 1
Containing acetone 90%, waste acetate fibre 5%, the adhesive of triacetate fiber glyceride 5%, the polypropylene fibre that sticks at rod making machine is chewed rod, and drying or natural evaporation are removed and are made bonding polypropylene fibre cigarette behind the acetone and chew rod.
Embodiment 2
To contain 10% acetate fiber,, be bonded on the polypropylene fibre bundle, and make the polypropylene fibre cigarette and chew rod in injection on the rod making machine or wiping with the miscible additive of triacetyl glycerine.
Embodiment 3
Cellulose acetate rod and the excellent length ratio by 1: 2 of polypropylene fibre are engaged, make the compound unfiltered cigarette rod of cellulose acetate-polypropylene fibre.