阅读说明：本技术 一种香烟过滤嘴 (Cigarette filter tip ) 是由 黄方平 于 2021-02-25 设计创作，主要内容包括：本发明涉及一种香烟过滤嘴,包括纤维过滤段和外包纸层,纤维过滤段底部与香烟本体连接,顶部依次紧密连接熔喷布过滤段和拉瓦尔管状吸嘴段,并通过定型层定型；外包纸层包裹在定型层外部,材料为负离子抗菌纸；外包纸层外设有易撕纸层；通过在保留部分现有香烟过滤嘴纤维过滤段的基础上增设熔喷布过滤段和拉瓦尔管状吸嘴段,可实现在纤维过滤段将烟焦油初步进行过滤、熔喷布过滤段中焦油及有害物质二次过滤、拉瓦尔管状吸嘴段再次粘挂焦油的过程,不仅整个过滤嘴阻力小、过滤效果好,而且通过熔喷布过滤段解决了纤维入肺问题；除此之外,通过将外包纸层采用负离子抗菌纸并与易撕纸层相结合的设计,有效解决了抽烟和递烟过程中的病菌感染问题。(The invention relates to a cigarette filter tip, which comprises a fiber filter section and an outer wrapping paper layer, wherein the bottom of the fiber filter section is connected with a cigarette body, and the top of the fiber filter section is sequentially and tightly connected with a melt-blown cloth filter section and a Laval tubular suction nozzle section and is shaped by a shaping layer; the outer wrapping paper layer is wrapped outside the shaping layer and is made of anion antibacterial paper; an easy-to-tear paper layer is arranged outside the outer wrapping paper layer; by additionally arranging the melt-blown cloth filter section and the Laval tubular suction nozzle section on the basis of reserving part of the existing filter section of the cigarette filter, the processes of preliminarily filtering cigarette tar in the fiber filter section, secondarily filtering tar and harmful substances in the melt-blown cloth filter section and secondarily sticking and hanging tar in the Laval tubular suction nozzle section can be realized, the whole filter has small resistance and good filtering effect, and the problem that fibers enter the lung is solved through the melt-blown cloth filter section; in addition, the outer wrapping paper layer is designed by adopting the anion antibacterial paper and combining with the easy-to-tear paper layer, so that the problem of germ infection in the smoking and cigarette passing processes is effectively solved.)

1. A cigarette filter comprises a fiber filter section (1) and an outer wrapping paper layer (5), and is characterized in that the bottom of the fiber filter section (1) is connected with a cigarette body, and the top of the fiber filter section is sequentially and tightly connected with a melt-blown cloth filter section (2) and a Laval tubular filter section (3); the fiber filtering section (1), the melt-blown cloth filtering section (2) and the Laval tubular suction nozzle section (3) are shaped through a shaping layer (4); the outer coated paper layer (5) is wrapped outside the shaping layer (4) and made of anion antibacterial paper.

2. A cigarette filter according to claim 1, characterised in that the fibrous filter segment (1) material is cellulose acetate, polypropylene or regenerated fibres, the length being 1/3-1/2 of the whole cigarette filter.

3. A cigarette filter according to claim 1, characterised in that the meltblown filter section (2) has a length of 0.1-0.5 mm, an internal pore distribution which is uniform and a pore size of 0.05-0.5 mm.

4. A cigarette filter according to claim 1, characterised in that the length of the laval tubular mouthpiece section (3) is 1/3-2/3 of the cigarette filter.

5. A cigarette filter according to claim 1 or 4, characterised in that the central constriction diameter of the Laval tubular mouthpiece section (3) is 1/3-1/2 of the largest diameter of the two end flares.

6. A cigarette filter according to claim 5, characterised in that the Laval tubular section (3) is flared at its lower end for a greater length than at its upper end.

7. A cigarette filter according to claim 6, characterised in that the Laval tubular filter segment (3) is made of wood, plastic or metal material.

8. A cigarette filter according to claim 1, characterised in that the outer wrapper (5) is provided with a tear-off paper layer (6) for barrier pick-up and/or cross-contamination with pathogens during delivery.

9. A cigarette filter according to claim 8, characterised in that the easy-to-tear paper layer (6) is provided with an easy-to-tear sticker, and the lower part of the easy-to-tear paper layer (6) is provided with an easy-to-tear line along which the upper part of the easy-to-tear paper layer (6) is torn off.

Technical Field

The invention relates to the field of tobacco, in particular to a cigarette filter.

Background

The smoke generated by burning the cigarette contains hundreds of chemical components harmful to human body, especially more than 40 carcinogens such as tar, nitrosamine and the like, which is a common knowledge to people;

in order not to lose the market, tobacco manufacturers have thought to be wonderful to provide cigarettes with a filter which blocks harmful chemicals from being inhaled into the body. This measure confuses many smokers who want to inhale the pain quickly through the filter without any fear. Quite unknown, the filtering action performed by the filter is very limited, and is simply a self-consolation for smokers;

the investigation shows that the nicotine filtering rate of cigarettes is 43.28% for long filter tip and 9.93% for short filter tip, and the harmful component carbon monoxide in the smoke inhaled into air passage rises by 30% -40%, so that the harm of the filter tip to health is increased. As a result of investigations by 3737 smokers, the American researchers found that people who smoked filter cigarettes had a coronary heart disease not less frequently than those who smoked non-filter cigarettes, and that the filters were an "aid to the health of the smoker.

Secondly, since the introduction of cigarette filters in China for more than 50 years, cellulose acetate material occupies a remarkable position; generally, cigarette filters on the market are made of cellulose acetate, a chemical substance; however, when people hold cigarettes, the fiber flaps in the filter tip are easily broken, and then when people suck cigarettes, the fibers are sucked into the lung, and after a long time, the fibers are deposited in the lung, so that certain damage is caused to the lung.

In addition, the traditional cigarette packaging method with the filter tip has a misdistinguishing area that the cigarette sponge head directly contacted by fingers becomes a carrier of bacteria and dirt, almost all people are unaware that hands are washed just like before eating before smoking, and smoke is delivered during delivery to be a process of cross infection of various infectious diseases.

In order to solve the three problems, many research and development institutions and various tobacco enterprises in China carry out research and development in different degrees, for example, the patent number 202010879545.X developed and applied by Yuandou pharmaceutical industry GmbH is the Chinese invention patent named as a cigarette filter for effectively reducing nicotine inhalation, the patent application comprises a cigarette body and a filter tip arranged at one end of the cigarette body, the filter tip consists of a filter inner core and a cigarette holder composite outer wrapping paper layer, the filter inner core is formed by tightly attaching a first acetate fiber section, a third acetate fiber section, a melt-blown fabric filter section and a second acetate fiber section in sequence, and the cigarette holder composite outer wrapping paper layer is formed by compounding a slow pressing layer, a sizing layer and an oily paper layer; however, the patent application can only improve the filtering effect of the cigarette tar to a certain extent, but because the patent application adds a melt-blown cloth filtering section on the basis of the existing cigarette filter, the filtering resistance is further increased, namely the content of the harmful component of carbon monoxide is increased more, and the smoking experience is greatly reduced due to the increased resistance, the first problem can only be solved to a certain extent.

It has been found that cigarette filters made of plant fibers can also reduce the amount of tar inhaled, as disclosed in patent No. 201811466231.6 entitled cigarette/cigar filter tip made of a natural material, which is a chinese patent application with the following formulation by mass: 100 portions and 150 portions of activated carbon particles; 60-90 parts of plant fiber; 110-140 parts of wheat, 50-80 parts of barley, 30-70 parts of corn, 40-60 parts of buckwheat, 10-40 parts of rice and 5-15 parts of sesame; 5-110 parts of plant adhesive, 5-20 parts of plant preservative and 30-150 parts of plant leavening agent; 10-25 parts of water; the invention solves the problems that the existing cigarette filter tip generates a large amount of smoke gas during combustion and is not easy to degrade, and a filter tip rod with good filtering effect and good environmental protection is formed by matching natural materials with active carbon, thereby playing the role of reducing the harm of the smoke gas to human bodies; the present invention can solve the first and second problems, but the cigarettes are produced in bulk, and the cost of the plant fiber combined with the activated carbon is higher than that of the existing acetate fiber, so the present invention is mostly used for movable filters, and is not suitable for disposable filters.

As for the third problem, the conventional practice is mostly to put filter-tipped cigarettes into a cigarette case, for example, chinese patent No. 200410006364.7 entitled method related to improvement of filter-tipped cigarette packaging, which is applied to the case of packaging filter-tipped cigarettes, and before the cigarettes are packed into the case, the inner wall of the cigarette case and the filter tip portion of the cigarettes can be selectively sterilized and disinfected, and during the packing of the cigarettes, the filter tip portion of the cigarettes packed into the case can be sterilized and disinfected by means of ultraviolet irradiation, and when the cigarettes are extracted from the cigarette case, hands do not touch the filter tip portion of the cigarettes, so that the dirt on the hands can not enter the mouth from the way of the filter tip of the cigarettes; however, this improved method of cigarette case not only increases the difficulty of taking the cigarette, but also does not really solve the problem of the bacterial infection of the smoker during smoking.

In summary, it is urgent to develop a cigarette filter that can solve the above three problems and has as low cost as possible.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a cigarette filter, which is characterized in that a melt-blown cloth filter section and a laval tubular filter section are additionally arranged on the basis of a fiber filter section of the existing cigarette filter, so that the processes of preliminarily filtering cigarette tar, secondarily filtering tar and harmful substances in the melt-blown cloth filter section and secondarily sticking and hanging tar in the laval tubular filter section can be realized in the fiber filter section of the existing cigarette filter, the aims of small resistance and good filter effect of the whole cigarette filter are achieved, and the problem of entering the lung of fibers is solved through the melt-blown cloth filter section; in addition, the design that the outer wrapping paper layer of the existing cigarette filter tip adopts the anion antibacterial paper and is combined with the easy-to-tear paper layer effectively solves the problem of germ infection in the smoking and cigarette passing processes, thereby solving the problem in the background technology.

The specific technical scheme of the invention is as follows: a cigarette filter comprises a fiber filter section and an outer wrapping paper layer, and is characterized in that the bottom of the fiber filter section is connected with a cigarette body, and the top of the fiber filter section is sequentially and tightly connected with a melt-blown cloth filter section and a Laval tubular filter section; the fiber filtering section, the melt-blown cloth filtering section and the Laval tubular suction nozzle section are shaped through the shaping layer; the outer wrapping paper layer is wrapped outside the shaping layer and made of anion antibacterial paper.

Preferably, the fibrous filter segment material is acetate fiber, polypropylene fiber or regenerated fiber, and the length of the fibrous filter segment material is 1/3-1/2 of the whole cigarette filter.

Preferably, the meltblown fabric filter section has a length of 0.1 to 0.5mm, uniformly distributed internal pores, and a pore size of 0.05 to 0.5 mm.

Preferably, the laval tubular mouthpiece section is 1/3-2/3 of a cigarette filter.

Preferably, the diameter of the contraction opening in the middle of the Laval tubular nozzle section is 1/3-1/2 of the maximum diameter of the flaring at the two ends.

Preferably, the length of the flare at the lower end of the laval tubular nozzle section is greater than the length of the flare at the upper end.

Preferably, the laval tubular nozzle section is made of wood, plastic or metal material.

Preferably, an easily-torn paper layer is arranged outside the outer wrapping paper layer and is used for isolating and taking and/or transmitting cross infection of germs generated in the cigarette process.

Preferably, easily tear and be equipped with the easy subsides of tearing on the ply, and the lower part is equipped with easily tears the line, tears the upper half portion of the ply of easily tearing along easily tearing the line through easily tearing the subsides.

Compared with the prior art, the beneficial effects of the invention are as follows:

1. the process that the cigarette tar is primarily filtered, the tar and harmful substances in the melt-blown filter section are secondarily filtered, and the tar is stuck and hung on the Laval tubular filter section again in the existing cigarette filter fiber filter section can be realized by additionally arranging the melt-blown filter section and the Laval tubular filter section on the basis of reserving part of the existing cigarette filter fiber filter section, so that the purposes of small resistance and good filtering effect of the whole cigarette filter are achieved, and the problem that the fibers enter the lung is solved through the melt-blown filter section; in addition, the design that the outer wrapping paper layer of the existing cigarette filter tip adopts the anion antibacterial paper and is combined with the easy-to-tear paper layer effectively solves the problem of germ infection in the smoking and cigarette passing processes;

2. by the flaring design of the two ends of the Laval tubular suction nozzle section, the tar can be guaranteed to be stuck and hung by the flaring of the lower end of the smoke in the rising process, the filtered smoke can be guaranteed to rise quickly, and the smoking experience of smokers is not influenced;

3. the outer wrapping paper layer adopts the design that the anion antibacterial paper and the easy-to-tear paper layer are combined, so that the sanitation of the cigarette extraction and transmission process is guaranteed, the anion antibacterial paper which is exposed out of the easy-to-tear paper layer is torn before smoking, the germ inlet in the smoking process is also guaranteed, and the comprehensive protection of smokers is realized through a simple structure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention with the outer paper layer removed.

Fig. 3 is a schematic view of the structure of the outer paper layer of the present invention.

In the figure: 1-a fiber filtration section; 2-melt spraying a cloth filtering section; 3-a laval tubular mouthpiece section; 4-shaping layer; 5-wrapping paper layer outside; 6-easy-to-tear paper layer.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example (b):

as shown in fig. 1 and 2, a cigarette filter comprises a fiber filter section 1 and an outer wrapping paper layer 5, and is characterized in that the bottom of the fiber filter section 1 is connected with a cigarette body, and the top is sequentially and tightly connected with a melt-blown filter section 2 and a laval tubular suction nozzle section 3; the fiber filtering section 1, the melt-blown cloth filtering section 2 and the Laval tubular suction nozzle section 3 are shaped through a shaping layer 4; the outer paper layer 5 is wrapped outside the shaping layer 4 and is made of anion antibacterial paper; in addition, the material of the fiber filtering section 1 is one of acetate fiber, polypropylene fiber or regenerated fiber; meanwhile, in order to ensure the filtering effect, the length of the fiber filtering section 1 is 1/2 of the whole cigarette filter tip, the length of the melt-blown cloth filtering section 2 is 0.4mm, the pore size is 0.2mm, and the rest length is a Laval tubular filter tip section 3;

in the filtering process, the fiber filtering section 1 is used for primarily filtering the cigarette tar in the smoke, and the length of the 1/2 cigarette filter tip is adopted, so that the cigarette tar can be filtered to the maximum extent in the filtering process, and the problem of excessive carbon monoxide can be avoided;

the melt-blown cloth has good filtering property, shielding property, heat insulation property and oil absorption property, so that the filter section 2 of the melt-blown cloth can further effectively filter tar smoke and harmful substances in the primarily filtered smoke, and the filtering effect of the cigarette holder is improved;

the flaring design of the two ends of the Laval tubular suction nozzle section 3 can ensure that the lower flaring can stick tar in the rising process of smoke and can also ensure that the filtered smoke rises quickly without affecting the smoking experience of smokers;

the invention not only achieves the purposes of small resistance and good filtering effect of the whole cigarette holder, but also solves the problem that the fiber enters the lung through the melt-blown cloth filtering section 2.

As another embodiment of the invention, as shown in FIG. 2, the central contraction port diameter of the Laval tubular nozzle segment is 1/3 of the maximum diameter of the flaring at both ends, except for the same technical characteristics as the above embodiment.

As another embodiment of the present invention, as shown in fig. 2, except for the same technical features as the above embodiment, the length of the lower end flaring of the laval tubular suction nozzle section is 2 times that of the upper end flaring, which effectively ensures the tar sticking effect of the lower end flaring during the rising process of the smoke.

As another embodiment of the present invention, in order to ensure wide applicability of the laval tubular nozzle section in materials, the laval tubular nozzle section 3 is made of wood, plastic or metal materials, except for the same technical features as the above-described embodiments.

As another embodiment of the invention, as shown in fig. 3, in addition to the same technical features as the above embodiment, an easy-to-tear paper layer 6 is provided outside the outer wrapping paper layer 5 for preventing cross infection of germs generated in the process of taking and/or delivering the cigarette; meanwhile, in order to ensure convenient and easy tearing of a user, the easy-tearing paper layer 6 is provided with an easy-tearing paste, the lower part of the easy-tearing paper layer 6 is provided with an easy-tearing line, and the upper half part of the easy-tearing paper layer 6 can be easily torn off along the easy-tearing line through the easy-tearing paste; the outer wrapping paper layer 5 adopts the design that the anion antibacterial paper is combined with the easy tearing paper layer 6, so that the sanitation of the cigarette extraction and transmission process is guaranteed, the anion antibacterial paper which is exposed out of the easy tearing paper layer 6 is torn off before smoking, and the germ inlet in the smoking process is also guaranteed, and the comprehensive protection of smokers is realized through a simple structure.

The filtering working principle of the invention is as follows: before lighting the cigarette, a user tears off the upper half part of the easy-tearing paper layer along the easy-tearing line through the easy-tearing sticker; clamping the unstripped easy-to-tear paper layer on the cigarette filter tip by fingers, and sucking the exposed anion antibacterial paper; after lighting cigarette, in user's smoking process, smog loops through the fiber filtering section, melt-blown cloth filter segment and laval tubulose suction nozzle section, wherein the fiber filtering section is just strained the tar in smog, melt-blown cloth filter segment further filters the tar in smog and harmful substance, smog is through laval tubulose suction nozzle section in-process, the lower extreme flaring velocity of flow is low, make remaining tar in smog glue and hang on lower extreme flaring inner wall, and the flaring velocity of flow of upper end is high, it is little finally to reach whole cigarette holder resistance, the purpose that the filter effect is good, and the problem that the fibre went into the lung has been solved through melt-blown cloth filter segment 2.