CN102697178A

CN102697178A - Slot carding filter stick

Info

Publication number: CN102697178A
Application number: CN2012102252421A
Authority: CN
Inventors: 向能军; 牟定荣; 孟昭宇; 龚为民; 陈宝荣; 许云春; 陈洪林; 钱宇; 奚保华; 代培明
Original assignee: YUNNAN YUNXI CIGARETTE FILTER ROD BRANCH FACTORY; Hongta Tobacco Group Co Ltd
Current assignee: YUNNAN YUNXI CIGARETTE FILTER ROD BRANCH FACTORY; Hongta Tobacco Group Co Ltd
Priority date: 2012-07-03
Filing date: 2012-07-03
Publication date: 2012-10-03

Abstract

The invention discloses a slot carding filter stick, wherein a tow of the filter stick is wrapped in a piece of shaping paper; two to ten shred carding slots with smaller tow filling density are arranged in the tow of the shaping paper; and the shred carding slots axially run through the front and rear ends of the filter stick and are evenly distributed on the circumference of the filter stick. According to the technical scheme, the amount of diluted airflow entering the filter stick is increased, and by means of the increased diluted airflow, the density of the smoke is reduced; and due to the function of a negative pressure area in the filter stick, the smoke flows transversely in the filter stick and the filter efficiency of tar is improved; therefore, by means of the technical scheme, the tar content in the smoke is decreased and the density is effectively reduced under the condition of ensuring that the taste of the cigarette is basically constant.

Description

Dredge the groove filter stick

Technical field

The invention belongs to the cigarette filter rod technical field, relate to the thin groove filter stick that thin silk groove is arranged in a kind of tow.

Background technology

In the prior art, filter stick is cylindrical, is made up of forming paper parcel tow, and the density of tow is more even.Filter stick props up after cutting, being installed to cigarette with tipping paper parcel on the cigarette machine, processes and is with cigarette with filter tip.In use, produce pressure drop in the filter stick, force flue gas from tow, to flow through; The contacted part tar that filters in the flue gas of tow and flue gas, simultaneously, dilution air flow penetrates the tow from forming paper and the tipping paper that is wrapped in outside the forming paper; Mix with flue gas, reduce the concentration of flue gas.The filter stick of this conventional design, the tow density under the forming paper parcel is even, and when smoking, resistance to suction is relatively large, when dilution air flow penetrates filter stick inside from forming paper, receives the influence of tow resistance to suction, and the air inflow of air is less.

Summary of the invention

The present invention is directed in the prior art; The tow density that rod is chewed in filter is even, and the amount that dilution air flow gets into from the filter stick side is less, influences the problem of air and flue gas melting concn; A kind of thin groove filter stick is provided; The tow of this filter stick is wrapped in the forming paper, is processed with the less thin silk groove of tow packed density in the tow in forming paper, dredges the silk groove and connects the filter stick rear and front end vertically.

The quantity of dredging the silk groove evenly distributes on the circumference of filter stick between two to ten.

Adopt technique scheme, filter stick props up when using being hinged with cigarette, because the resistance to suction of dredging in the silk groove is little; Dredge the silk groove and in filter stick, form negative pressuren zone; Dilution air flow is easy to get into from the side dredges in the silk groove, and under tipping paper and forming paper performance the same terms, the inlet of air can obtain increasing; When main flume when the filter stick front end gets into; A part intensive zone passage of tow from filter stick; Another part is in the less thin silk groove of tow packed density, to pass through; Because dredge the suction function in the silk groove, lateral flow can take place in the flue gas that the tow close quarters passes through from filter stick, produces the high efficiency filter effect; Because it is inner to dredge the recessed filter stick in silk district, its surface area is bigger, and the area that therefore promotes the flue gas lateral flow is bigger, and the tar content that is filtered in the flue gas increases.

After adopting the present technique scheme, the amount that dilution air flow gets in the filter stick can obviously be increased, and the dilution air flow after the increase has reduced the concentration of flue gas; Because the effect of negative pressuren zone in the filter stick, lateral flow takes place in flue gas therein, and the filter efficiency of tar improves; Therefore adopt the present technique scheme, can the tar ingredients in the flue gas reduced guaranteeing that cigarette props up under the constant basically situation of suction flavor, concentration effectively reduces.

Description of drawings

Fig. 1 is a cross-sectional view of the present invention.

The specific embodiment

Embodiment: as shown in Figure 1, a kind of thin groove filter stick, its tow 2 is wrapped in the forming paper 1, is processed with the less thin silk groove 3 of tow packed density in the tow 2 in forming paper 1, dredges silk groove 3 and connects the filter stick rear and front end vertically; The quantity of dredging silk groove 3 has four, on the circumference of filter stick, evenly distributes.

Claims

1. dredge the groove filter stick, its tow (2) is wrapped in the forming paper (1), it is characterized in that: be processed with the less thin silk groove (3) of tow packed density in the tow (2) in forming paper (1), dredge silk groove (3) and connect the filter stick rear and front end vertically.

2. thin groove filter stick as claimed in claim 1 is characterized in that: the quantity of dredging silk groove (3) evenly distributes on the circumference of filter stick between two to ten.