Cigarette filter tip material capable of reducing temperature and cigarette filter tip
Technical Field
The invention relates to the field of design and application of special filter rods for cigarettes, in particular to a filter tip material capable of reducing temperature for cigarettes and a filter tip for cigarettes.
Background
During the burning and smoking process of the cigarette, the burning of the tobacco shreds generates high heat, the burning temperature of the cigarette reaches 600-900 ℃, and the temperature of the main stream smoke is increased. Too high filter tip temperature not only influences the filter tip to the effect of holding back of flue gas aerosol particulate matter, can influence the acceptance of consumer to flue gas sensory quality moreover.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides a filter material for tobacco and a filter for tobacco, which can cool down the temperature of mainstream smoke and improve the smoking comfort of smokers.
In order to solve the technical problem, the invention provides a filter tip material for cooling cigarettes, which comprises:
a carrier material;
polylactic acid, polylactic acid is loaded on a carrier material.
Preferably, the carrier material is cellulose diacetate.
Preferably, the filter tip material for the temperature-reducing cigarette further comprises an auxiliary material.
Preferably, the polylactic acid has a glass transition temperature that is less than the temperature of mainstream smoke in the filter.
Preferably, the glass transition temperature is 40 to 70 ℃.
Preferably, the polylactic acid is modified polylactic acid or non-modified polylactic acid.
Preferably, the polylactic acid is in one or more of a granular shape, a film shape and a sheet shape.
The invention also provides a cigarette filter tip which is prepared from the cigarette filter tip material capable of reducing the temperature.
Preferably, the cigarette filter tip is of one of a unitary composite structure, a binary composite structure and a ternary composite structure;
when the cigarette filter is of a unitary composite structure, the cigarette filter comprises a first filter section, wherein the first filter section is made of a carrier material, cooling particles are added at the center of the first filter section, and the cooling particles are made of polylactic acid;
when the cigarette filter is in a binary composite structure, the cigarette filter comprises a first filter section and a second filter section which are coaxially butted, wherein the first filter section is made of a carrier material, and part or all of the second filter section is made of polylactic acid;
when the cigarette filter is the ternary composite structure, the cigarette filter includes coaxial first filter stage, second filter stage and the third filter stage of butt joint in proper order, and first filter stage and third filter stage are made by carrier material, have the cavity in the second filter stage, and it has the cooling particulate matter to fill in the cavity, and the cooling particulate matter is made by polylactic acid.
Preferably, when the cigarette filter is of a binary composite structure, the second filter segment is made of a carrier material, and cooling particles are uniformly added into the second filter segment and made of polylactic acid; or the second filtering section is formed by rolling a film, and the film is made of polylactic acid.
As mentioned above, the filter tip material for the cigarette and the filter tip for the cigarette, which are disclosed by the invention, have the following beneficial effects: the research result shows that: in the process of smoking cigarettes by smokers, the temperature of mainstream smoke at the filter tip of a conventional cigarette can reach 70-80 ℃ at most when the last two to three cigarettes are smoked, and the temperature of the mainstream smoke at the filter tip even reaches over 100 ℃ in a deep smoking mode, and in addition, the temperature of the mainstream smoke is higher due to larger smoking flow of fine cigarettes. Meanwhile, the polylactic acid is a biodegradable green environment-friendly high polymer material, and the glass transition temperature of the polylactic acid is not higher than 70 ℃. The polylactic acid is loaded on the carrier material of the filter tip material for the cigarette capable of reducing the temperature, the polylactic acid is subjected to glass transition by utilizing the high temperature of the mainstream smoke, the polylactic acid is converted from a glass state to a high elastic state and absorbs certain heat, so that the temperature of the mainstream smoke can be cooled, the smoking comfort of a smoker is improved, and the problems of filtration and taste caused by overhigh temperature of the mainstream smoke in the last few mouths of the smoked cigarette can be particularly solved.
Drawings
FIG. 1 is a schematic view of a unitary composite structure of a cigarette filter of the present invention;
FIG. 2 shows a schematic view of a first embodiment of a binary composite structure of a cigarette filter of the invention;
FIG. 3 shows a schematic view of a second embodiment of a binary composite structure of a cigarette filter of the invention;
FIG. 4 is a schematic diagram showing a ternary composite structure of the cigarette filter of the present invention.
Description of the element reference numerals
1 first filtration stage
2 second filtration stage
3 third Filter stage
4 cooling the granules
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention provides a filter tip material for cooling cigarettes, which comprises the following components:
a carrier material;
polylactic acid, polylactic acid is loaded on a carrier material.
In the present invention, the research results show that: in the process of smoking cigarettes by smokers, the temperature of mainstream smoke at the filter tip of a conventional cigarette can reach 70-80 ℃ at most when the last two to three cigarettes are smoked, and the temperature of the mainstream smoke at the filter tip even reaches over 100 ℃ in a deep smoking mode, and in addition, the temperature of the mainstream smoke is higher due to larger smoking flow of fine cigarettes. Meanwhile, the polylactic acid is a biodegradable green environment-friendly high polymer material, and the glass transition temperature of the polylactic acid is not higher than 70 ℃. The polylactic acid is loaded on the carrier material of the filter tip material for the cigarette capable of reducing the temperature, the polylactic acid is subjected to glass transition by utilizing the high temperature of the mainstream smoke, the polylactic acid is converted from a glass state to a high elastic state and absorbs certain heat, so that the temperature of the mainstream smoke can be cooled, the smoking comfort of a smoker is improved, and the problems of filtration and taste caused by overhigh temperature of the mainstream smoke in the last few mouths of the smoked cigarette can be particularly solved.
The carrier material is cellulose diacetate.
The filter tip material for the cigarette capable of reducing the temperature also comprises auxiliary materials.
In order to cause the polylactic acid to undergo a glass transition, the glass transition temperature of the polylactic acid is lower than the temperature of mainstream smoke in the filter.
The glass transition temperature is 40 to 70 ℃.
The polylactic acid is modified polylactic acid or non-modified polylactic acid. The glass transition temperature of polylactic acid which is not modified by the plasticizer is about 60-70 ℃, and the glass transition temperature of polylactic acid modified by the plasticizer can be further reduced.
The polylactic acid is in one or more of granular shape, film shape and sheet shape.
The invention also provides a cigarette filter tip which is prepared from the cigarette filter tip material capable of reducing the temperature. The cigarette filter tip can cool the temperature of mainstream smoke and improve the smoking comfort of smokers.
The cigarette filter tip is in one of a unitary composite structure, a binary composite structure and a ternary composite structure;
as shown in fig. 1, when the cigarette filter is of a unitary composite structure, the cigarette filter comprises a first filter segment 1, wherein the first filter segment 1 is made of a carrier material, a cooling particulate matter 4 is added at the center of the first filter segment 1, and the cooling particulate matter 4 is made of polylactic acid;
as shown in fig. 2 and 3, when the cigarette filter has a binary composite structure, the cigarette filter comprises a first filter segment 1 and a second filter segment 2 which are coaxially butted, wherein the first filter segment 1 is made of a carrier material, and the second filter segment 2 is partially or completely made of polylactic acid. Specifically, as a first embodiment of the binary composite structure of the filter tip for cigarettes (see fig. 2), the second filter segment 2 is made of a carrier material, and the cooling particulate matter 4 is uniformly added in the second filter segment 2, and the cooling particulate matter 4 is made of polylactic acid. As a second embodiment of the binary composite structure of the filter for cigarettes (see fig. 3), the second filter segment 2 is made by rolling a film made of polylactic acid.
As shown in fig. 4, when the cigarette filter is of a ternary composite structure, the cigarette filter comprises a first filter segment 1, a second filter segment 2 and a third filter segment 3 which are coaxially and sequentially butted, wherein the first filter segment 1 and the third filter segment 3 are both made of carrier materials, a cavity is arranged in the second filter segment 2, cooling particles 4 are filled in the cavity, and the cooling particles 4 are made of polylactic acid.
In the second embodiment of the binary composite structure of the cigarette filter, the total length of the cigarette filter is 20-35 mm, and the length of the second filter section 2 is 5-15 mm. When the cigarette filter tip is of a ternary composite structure, the total length of the cigarette filter tip is 20-35 mm, and the length of the second filter section 2 is 5-15 mm. The diameter of the cigarette filter is 5.0-8.0 mm.
In conclusion, the cigarette filter material and the cigarette filter can cool the temperature of mainstream smoke, and improve the smoking comfort of smokers. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.