Patent Description:
With consumers' increasing attention to health and demand for personalized experience of cigarette products, various heating cigarettes with reduced coke and harm have been developed as a continuous response to the upgrading of consumers' needs. Among which, heat-not-burning cigarettes can provide a healthier smoking experience while satisfying consumers' sensory requirements for cigarette products due to their different heating methods from traditional cigarette products.

Existing heating cigarettes mainly include a smoking core material segment, a hollow support segment, a cooling segment and a filter segment. In order to introduce air, increase ventilation volume and effectively reduce the temperature of the smoke, the method of online laser drilling is often used to perforate in the hollow support segment of the heating cigarette, and the pipe wall of the hollow support segment as well as the shaping paper and tipping paper wrapping the hollow support segment are perforated to form ventilation pores and introduce air; however, this method still has the following problems: <NUM>. The process of online laser drilling has higher requirements on the pipe-wall material and thickness of the hollow support segment, the material of the hollow support segment pipe wall can neither collapse during the process, nor be too thick to perforate during the process; <NUM>. the process of online laser drilling has high requirements on laser power, in case laser drilling equipment fails to perforate the pipe wall of the hollow support segment, problems of unqualified heating cigarettes and overheating of smoke temperature may arise; <NUM>. at present, ventilation pores are formed by punching through the hollow support segment as well as the shaping paper and tipping paper wrapping the hollow support segment, outside air directly enters the hollow support segment through the ventilation pores, quick air introduction of ventilation pores, limited contact area between the introduced air and the snoke, and uneven mixing may result in an increase in the amount of smoke inhaled into the consumer's mouth, while smoke concentration is low as it is obviously mixed with a large amount of air, so that smoking quality is seriously affected.

<CIT> discloses a heating non-combustible cigarette with a ventilation window, the cigarette sequentially comprising a smoke generating core material section, a hollow supporting section and a filtering section. <CIT> describes a smokeless cigarette which comprises a filter tip, a heat-resistant hollow section and a tobacco section sequentially connected. <CIT> discloses heat-not-burn articles with an empty tube structure. The outer wall of the tube is made of either cellulose acetate of non-woven fabric. The air permeable tipping paper covers the entire length of the empty tube structure.

Besides, problems of using physical perforation method to make the wall of heating cigarette pipe ventilate include nonadjustable permeability volume and fixed permeability position; as introduction of air through physical perforation only lies in where to perforate and where to introduce ambient air for ventilation and cooling, permeability rate is fixed with the size of the hole. However, as the smoking segment material or the adapted smoking apparatus changes, it is desirable that air permeability of the heating cigarette can be adjusted.

Thus, it is desirable to design a heating cigarette that can ensure not only the cooling effect for the smoke, but also the smoking amount and the quality of the smoke, as well as air permeability and its volume of the heating cigarette can be adjusted.

The present disclosure is proposed to solve the above problems.

A first aspect of the present disclosure provides a heating cigarette with adjustable pipe-wall air permeability, the heating cigarette with adjustable pipe-wall air permeability includes a smoking segment <NUM> and a heating cigarette filter rod with natural permeability function, the smoking segment and the heating cigarette filter rod are assembled and molded by a shaping paper <NUM>; a tipping paper <NUM> wraps around at least part of the outer side of the shaping paper <NUM> wrapping the heating cigarette filter rod with natural permeability function;.

The smoke extraction segment <NUM> has a hollow structure, including a pipe wall <NUM> and a pipe cavity <NUM>. The pipe wall <NUM> does not need to be perforated due to its permeability function, there are ventilation pores disposed inside the pipe wall <NUM>, outside air can enter the pipe cavity <NUM> through the ventilation pores inside the pipe wall <NUM>. Wherein, the cross-segmental area of the pipe cavity <NUM> is not limited to a circle, which can also be of any shape such as a triangle, a polygon, or a pentagram.

Preferably, the tipping paper <NUM> covers <NUM>/<NUM>-<NUM>/<NUM> of the axial length of the smoke extraction segment <NUM>.

Preferably, air permeability of the shaping paper <NUM> is <NUM>-10000CU.

The pipe wall <NUM> is molded by particles adhesion and extrusion, and the voids among the particles after molding are used as the ventilation pores, the pipe wall <NUM> itself has a permeability function;
The particle diameter is <NUM>-<NUM> microns; after the particles is molded into the pipe wall of a hollow pipe, the thickness of the pipe wall <NUM> is <NUM>-<NUM>, and the voids among the particles in the pipe wall <NUM> are in dispersed form with a porosity of <NUM>-<NUM>%.

Preferably, the particles are selected from organic particles or inorganic particles, among which the inorganic particles include aluminum oxide, zirconia, calcium carbonate, glass beads, silica, iron, copper, aluminum, gold, platinum, magnesium silicate balls or calcium sulfate; while organic particles include at least one of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, powdered sugar, glucose, mannitol, starch, methylcellulose, ethylcellulose, polylactic acid, polyethylene, polypropylene, polyhydroxybutyrate, poly(ε-caprolactone), polyglycolic acid, polyhydroxyalkanoate, starch-based thermoplastic resin.

Preferably, binders among particles include: at least one of polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyacrylic acid polyvinyl compound, polytetrafluoroethylene, polyether ether ketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexamethylene terephthalate, polypropylene terephthalate, polyacrylate acid compounds, polymethyl methacrylate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic acid, cellulose acetate, cellulose acetate butyrate, plasticized cellulose plastic, cellulose propionate, or ethyl cellulose, or any derivative, copolymer as well as any combination thereof.

Preferably, the pipe wall <NUM> is made of a cellulose acetate tow, the filling amount of the cellulose acetate tow is based on medium cigarettes at this time, after the cellulose acetate tow forms the pipe wall of a hollow pipe, the thickness of the pipe wall <NUM> is <NUM>-<NUM>. At this time, the filling amount of the acetate cellulose tow is based on medium cigarettes, and when its size of filter rod circumference is <NUM>, <NUM>-<NUM> filaments are filled.

Preferably, the pipe wall <NUM> is made of an air-permeable ceramic material.

In other words, the shaping paper <NUM> in this heating cigarette structure has assembly function in the following two aspects: (<NUM>) the smoke extraction segment <NUM> and the functional filter rod segment <NUM> are assembled to form the heating cigarette filter rod with natural permeability function; (<NUM>) assembling the heating cigarette filter rod with natural permeability function and the smoking segment <NUM> to form a heating cigarette. However, the tipping paper does not play the role of assembly, it is used to control the permeability volume and position of the smoke extraction segment <NUM> through controlling the length of the tipping paper; meanwhile, the tipping paper can also print patterns and LOGO as conventional purposes.

A second aspect of the present disclosure provides a method for adjusting the heating cigarette with adjustable pipe-wall air permeability of the first aspect of the present disclosure, air permeability of the smoke extraction segment <NUM> can be adjusted by adjusting the size and position of the area of the smoke extraction segment <NUM> covered by the tipping paper <NUM>, thereby adjusting air permeability of the heating cigarette.

Besides, the heating cigarette filter rod with natural permeability function of the present disclosure is not limited to only include the smoke extraction segment <NUM> and the functional filter rod segment <NUM>; according to actual needs, it can also be a ternary composite structure, other functional segments such as support segment, cooling segment, and aroma enhancement segment can be added.

Compared with the prior art, the present disclosure has the following beneficial effects:.

The names of reference signs in the description of figures are as follows: <NUM>. Smoking segment, <NUM>. Smoke extraction segment, <NUM>. Functional filter rod segment, <NUM>. Shaping paper, <NUM>. Tipping paper; <NUM>. Pipe wall, <NUM>. Pipe cavity.

The present disclosure will be further explained below through specific embodiment.

It is understood by those skilled in the art that, the following embodiments are only for illustrating the present disclosure and should not be interpreted as limiting the scope of the present disclosure. In case no specific technique or condition is indicated in the embodiment, the technique or condition described in the literature in the field or the product specification is based on. In case the materials or equipment used are not indicated with the manufacturer, they are all ordinary products that can be obtained through purchase.

It can be understood by those skilled in the art that, the singular forms "a", "an" and "the" used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that "including" used in the description of the present disclosure means that the features, integers, steps, operations, elements and/or components exist; however, the existence or addition of one or more other features, integers, steps, operations, elements, components and/or their groups thereof is not excluded. It should be understood that, when an element is referred to be "connected" to another one, it may be directly connected to another element, or there may be intermediate elements as well. Moreover, "connection" as used herein may include wireless connections.

In the description of the present disclosure, unless otherwise stated, "a plurality of" means two or more. The orientation or state relationship indicated by the terms "inside", "above", "below", etc. is based on that shown in the figures, which is only for convenience of describing the present disclosure and simplifying description, rather than indicating or implying that the device or element must have a particular orientation, or must be constructed and operated in a particular orientation, and thus should not be interpreted as limitations of the present disclosure.

In the description of the present disclosure, it should be noted that, the terms "mount", "connect" and "provided with" should be interpreted broadly unless otherwise expressly specified and defined, such as fixed connection, detachable connection, or integral connection; either mechanical connection or electrical connection; direct connection or indirect connection through intermediate media. The specific meanings of the terms above in the present disclosure can be understood by persons skilled in the art in actual conditions.

It is understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meanings as commonly understood by the ordinary persons skilled in the art to the technical field to which the present disclosure belongs. It should also be understood that terms such as those defined in the general dictionary should be understood to have meanings consistent with those in the context of the prior art; moreover, unless defined as herein, the terms may not be explained with idealized or overly formal senses.

As shown in <FIG>, the embodiment shows a heating cigarette sample <NUM> with adjustable pipe-wall air permeability, the heating cigarette with adjustable pipe-wall air permeability includes a smoking segment <NUM> and a heating cigarette filter rod with natural permeability function, the smoking segment and the filter rod are assembled and molded by a shaping paper <NUM>; a tipping paper <NUM> wraps around the outer side of the shaping paper <NUM> wrapping the heating cigarette filter rod with natural permeability function;.

The smoke extraction segment <NUM> has a hollow structure, including a pipe wall <NUM> and a pipe cavity <NUM>. The pipe wall <NUM> does not need to be perforated due to its permeability function, there are ventilation pores disposed inside the pipe wall <NUM>, outside air can enter the pipe cavity <NUM> through the ventilation pores inside the pipe wall <NUM>.

The tipping paper <NUM> covers <NUM>/<NUM> of the axial length of the smoke extraction segment <NUM>. The air permeability of the shaping paper <NUM> is 1000CU.

The pipe wall <NUM> is molded by particle bonding and extrusion, the voids among the particles after molding play a role of natural ventilation.

The particle diameter is <NUM>-<NUM> microns; after the particles is molded into the pipe wall of a hollow pipe, the thickness of the pipe wall <NUM> is <NUM>, the voids among the particles in the pipe wall <NUM> are in dispersed form with a porosity of <NUM>%. The particles are selected from inorganic particles of aluminum oxide. The binder between particles is polylactic acid.

The smoke extraction segment <NUM> has a hollow structure, including a pipe wall <NUM> and a pipe cavity <NUM>. The pipe wall <NUM> does not need to be perforated due to its permeability, there are ventilation pores disposed inside the pipe wall, outside air can enter the pipe cavity <NUM> through the ventilation pores inside the pipe wall <NUM>.

The tipping paper <NUM> covers <NUM>/<NUM> of the axial length of the smoke extraction segment <NUM>.

The pipe wall <NUM> is made of a cellulose acetate tow, and the filling amount of the cellulose acetate tow is based on medium cigarettes at this time, after the cellulose acetate tow forms the pipe wall of the hollow pipe, the thickness of the pipe wall <NUM> is <NUM>. At this time, the filling amount of the acetate cellulose tow is based on medium cigarettes, and when its size of filter rod circumference is <NUM>, <NUM> filaments are filled.

For the heating cigarette sample <NUM> prepared in Embodiment <NUM> and the heating cigarette sample <NUM> prepared in Embodiment <NUM>, according to QYNZYJ07. <NUM>-<NUM> standard, <NUM> professional sensory evaluation personnel at or above the provincial level are asked to smoke the cigarette samples, after evaluation, the scores are averaged, so that the following table <NUM> can be obtained.

Claim 1:
A heating cigarette with adjustable pipe-wall air permeability, characterized in that, the heating cigarette with adjustable pipe-wall air permeability comprises a smoking segment (<NUM>) and a heating cigarette filter rod with natural permeability function, the smoking segment and the heating cigarette filter rod are assembled and molded by a shaping paper (<NUM>); a tipping paper (<NUM>) wraps around at least part of the outer side of the shaping paper (<NUM>) wrapping the heating cigarette filter rod with natural permeability function;
From the distal lip end to the proximal lip end, the heating cigarette filter rod with natural permeability function sequentially comprises a smoke extraction segment (<NUM>) and a functional filter rod segment (<NUM>), the smoke extraction segment (<NUM>) has permeability function itself, outside air can enter the interior of the heating cigarette through the smoke extraction segment (<NUM>);
The tipping paper (<NUM>) only partially wraps the smoke extraction segment (<NUM>), at least part of the outer part of the smoke extraction segment (<NUM>) close to the smoking segment (<NUM>) is only equipped with the shaping paper (<NUM>), without being wrapped by the tipping paper (<NUM>);
The shaping paper (<NUM>) is air permeable, while the tipping paper (<NUM>) is air impermeable, the length of the tipping paper (<NUM>) is adjustable;
the smoke extraction segment (<NUM>) has a hollow structure, comprising a pipe wall (<NUM>) and a pipe cavity (<NUM>), the pipe wall (<NUM>) does not need to be perforated due to its permeability function; there are ventilation pores disposed inside the pipe wall (<NUM>), outside air can enter the pipe cavity (<NUM>) through the ventilation pores inside the pipe wall (<NUM>);
the pipe wall (<NUM>) is molded by particles adhesion and extrusion, and the voids among the particles after molding are used as the ventilation pores, so that the pipe wall (<NUM>) itself has a permeability function;
the particle diameter is <NUM>-<NUM> microns; after the particles is molded into the pipe wall of a hollow pipe, the thickness of the pipe wall (<NUM>) is <NUM>-<NUM>, and the voids among the particles in the pipe wall (<NUM>) are in dispersed form with a porosity of <NUM>-<NUM>%.