Cigarette paper for heating cigarettes

Abstract

The utility model discloses cigarette paper for heating cigarettes, which is used for the heating cigarettes for circumferential heating and non-contact bottom hot air heating and comprises a paper body, the paper body is made of silicon coated paper or ceramic fiber paper, and the silicon coated paper comprises a first silicone oil layer, a base paper layer, an oil-proof film layer and a second silicone oil layer which are sequentially connected. The oil-proof film layer and the base paper layer form composite film paper in a coating manner, the composite film paper, the first silicone oil layer and the second silicone oil layer are compounded to form an integral structure, and the ceramic fiber paper is formed by mixing, pouring and extruding various raw materials. When the cigarette paper for heating the cigarette is used for manufacturing the cigarette for smoking, the baked paper flavor is not generated, and the sensory experience is greatly improved; after smoking is completed, the cigarette does not leak oil, and cleaning of appliances is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco, in particular to cigarette paper for heating cigarettes. Background Art

[0002] Heated cigarettes are a new type of tobacco product whose smoking mechanism is significantly different from that of traditional combustion cigarettes. The heating temperature is generally below 350°C, which can effectively reduce the production of many potentially harmful substances caused by high-temperature combustion and decomposition. It is the product closest to the smoking experience of traditional cigarettes among new tobacco products, and has broad market prospects. Heated cigarettes can be divided into three types according to the shape of the heating element: center heating, circumferential heating, and non-contact bottom hot air heating. The heat flow of center heating does not directly contact the cigarette paper, while the heat flow of circumferential heating and non-contact bottom hot air heating will continuously bake the cigarette paper, thereby producing an unpleasant baking paper smell and affecting the sensory experience. In addition, the cigarette paper will have oil seepage, which is not conducive to the cleaning of the heating device.

[0003] In view of this, it is necessary to design a cigarette paper for heating cigarettes that can meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cigarette paper for heating cigarettes, which is suitable for circumferential heating and non-contact bottom hot air heating, and is made of special high-temperature resistant and impermeable material. When inserted into a heating device for heating, the cigarette paper is evenly heated and conducts heat, and the cigarette does not produce a roasted paper smell. After the smoking is completed, there is no oil leakage.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] A cigarette paper for heated cigarettes, used for circumferentially heated and non-contact bottom hot air heated heated cigarettes, the cigarette paper for heated cigarettes comprising a paper body, the paper body being made of silicon-coated paper or ceramic fiber paper, the silicon-coated paper comprising a first silicone oil layer, a base paper layer, an oil-proof film layer, and a second silicone oil layer which are sequentially connected, the oil-proof film layer being formed into a composite film paper with the base paper layer by coating, the composite film paper being composited with the first silicone oil layer and the second silicone oil layer to form an integral structure, and the ceramic fiber paper being formed by mixing, pouring, and extruding a plurality of raw materials.

[0007] Preferably, in the above technical solution, the first silicone oil layer and the second silicone oil layer are both polydimethylsiloxane layers, the base paper layer is a non-ribbed cigarette fiber paper layer, and the oil-proof film layer is a chitosan film layer, a sodium alginate film layer or a carboxymethyl chitosan-sodium alginate film layer.

[0008] Preferably, in the above technical solution, the oil-proof film layer and the base paper layer are bonded by hot pressing to form a composite film paper; or the oil-proof film layer and the base paper layer are bonded by a roller coating sizing machine to form a composite film paper.

[0009] Preferably, in the above technical solution, the silicon-coated paper is formed by dipping or coating the composite film paper and the first silicone oil layer and the second silicone oil layer, and then drying and curing the formed paper.

[0010] Preferably, in the above technical solution, the ceramic fiber paper is formed by mixing one or more of Al2O3·SiO2, CaCO3, MgO and CaO with glue and water, extruding the mixed mixture, and then curing the mixed mixture by drying.

[0011] Preferably, in the above technical solution, the thickness of the ceramic fiber paper is 0.06 mm.

[0012] The above technical solution of the utility model has the following beneficial effects:

[0013] The cigarette paper for heated cigarettes of the present application does not produce a baking paper smell when the cigarette is made and smoked, which greatly improves the sensory experience; after the smoking is completed, the cigarette will not leak oil, which is conducive to the cleaning of the utensil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] Figure 1 This is a schematic diagram of cigarette paper for heating cigarettes according to Example 1 of the utility model.

[0016] Figure 2 This is a schematic diagram of cigarette paper for heating cigarettes according to Example 3 of the utility model. DETAILED DESCRIPTION

[0017] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0018] A cigarette paper for heated cigarettes is used for circumferentially heated and non-contact bottom hot air heated heated cigarettes. The cigarette paper for heated cigarettes includes a paper body, which is made of silicon-coated paper or ceramic fiber paper. The silicon-coated paper includes a first silicone oil layer 1, a base paper layer 2, an oil-proof film layer 3, and a second silicone oil layer 4 which are sequentially connected. The oil-proof film layer 3 forms a composite film paper with the base paper layer 2 by coating. The composite film paper and the first silicone oil layer 1 and the second silicone oil layer 4 are composited to form an integral structure. The ceramic fiber paper is formed by mixing, pouring and extruding a variety of raw materials.

[0019] Furthermore, the first silicone oil layer 1 and the second silicone oil layer 4 are both polydimethylsiloxane layers, the base paper layer 2 is a non-ribbed cigarette fiber paper layer, and the oil-proof film layer 3 is a chitosan film layer, a sodium alginate film layer or a carboxymethyl chitosan-sodium alginate film layer.

[0020] Further, the oil-proof film layer 3 and the base paper layer 2 are bonded by heat pressing to form a composite film paper; or the oil-proof film layer 3 and the base paper layer 2 are bonded by a roller coating sizing machine to form a composite film paper.

[0021] Furthermore, the silicon-coated paper is formed by dipping or coating the composite film paper and the first silicone oil layer 1 and the second silicone oil layer 4, and then drying and curing the formed paper.

[0022] Furthermore, the ceramic fiber paper is formed by mixing one or more of Al2O3·SiO2, CaCO3, MgO and CaO with glue and water, extruding and then drying and curing. The thickness of the ceramic fiber paper is 0.06 mm.

[0023] Preparation method of cigarette paper for heated cigarettes of the present application:

[0024] Method 1:

[0025] (1) Prepare 5% carboxymethyl chitosan solution and 5% sodium alginate aqueous solution at room temperature in a volume ratio of 1:1, quickly mix them evenly in a beaker, heat in a water bath at 60°C and stir for 30 minutes to obtain a mixed solution A;

[0026] The mixture was placed at room temperature for 12 hours to allow all bubbles in the mixture A to be exhausted, and then a 5% calcium chloride solution was added for a cross-linking reaction for 12 hours, wherein the volume ratio of the mixture A to the 5% calcium chloride solution was 1:2. After natural drying under ventilation conditions, a carboxymethyl chitosan-sodium alginate oil-proof film was obtained.

[0027] (2) A layer of adhesive is applied on the oil-proof film, and the film passes through a drying channel to remove the solvent in the adhesive and dry it, and then is bonded with cigarette fiber paper under hot pressing to form a composite film paper.

[0028] (3) Place the composite membrane paper in a polydimethylsiloxane (silicone oil) bath for 5 minutes to allow the silicone oil to fully and evenly soak both sides of the membrane paper.

[0029] (4) Place the impregnated membrane paper into a dryer, set the temperature at 80°C, and dry for 30 minutes. After drying, the preparation is completed.

[0030] Method 2:

[0031] A method for preparing cigarette paper for heated cigarettes, comprising the following steps:

[0032] (1) Chitosan powder with a deacetylation degree of ≥95 was added to a 1% acetic acid solution and stirred to dissolve, wherein the solid-liquid ratio of the chitosan powder to the 1% acetic acid solution was 1:25, and a film was prepared by a casting method. The chitosan film was naturally dried in a fume hood under purified conditions to obtain a chitosan film.

[0033] (2) Using a roller coating machine to evenly coat the adhesive on the surface of the rubber roller, then transferring the adhesive on the surface of the rubber roller to the surface of the cigarette fiber paper, and then compounding the chitosan film on the adhesive layer on the surface of the cigarette fiber paper to obtain a composite film paper.

[0034] (3) Apply polydimethylsiloxane (silicone oil) evenly on both sides of the film paper.

[0035] (4) Dry in a dryer at 80°C for 30 minutes to complete the preparation.

[0036] Method 3:

[0037] like Figure 2 As shown, the cigarette paper for heating cigarettes is made of a mixture of various materials.

[0038] A method for preparing cigarette paper for heated cigarettes, comprising the following steps:

[0039] (1) Weigh 70 parts of Al2O3·SiO2 powder, 20 parts of CaCO3 powder, 4 parts of MgO powder, 6 parts of CaO powder (each part is 1 g), 5 parts of glue, and 60 parts of water. Stir the raw materials evenly to form a suspended fiber mixture, then pour the mixture evenly into a mold and extrude the fibers to form a sheet-like solid.

[0040] Finally, the paper was dried and cured at 150° C. for 2 hours in a dryer to obtain a ceramic fiber paper 5 with a thickness of 0.06 mm.

[0041] The advantages of this application are:

[0042] The main components of traditional cigarette paper are cellulose, hemicellulose and lignin, with pyrolysis temperatures of 270°C, 220°C and 360°C respectively, while the heating temperature of the heating device is generally 300-350°C, and the cigarette paper is pyrolyzed during the heating process. Sensory manifestation is woody smell and pungent feeling, which affects the quality of cigarettes. The heated cigarettes made of special high-temperature resistant and impermeable materials (silicon-coated paper or ceramic fiber paper) used in this application will greatly reduce the generation of such impurities and improve the smoking experience. When smoking with this heated cigarette, there will be no smell of roasted paper, which greatly improves the sensory experience; after smoking, there will be no oil leakage from the cigarette, which is conducive to the cleaning of the device.

[0043] Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various choices and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is limited by the claims and their equivalents.

Claims

1. A cigarette paper for heating cigarettes, characterized in that: A heated cigarette for circumferential heating and non-contact bottom hot air heating, the cigarette paper for the heated cigarette comprising a paper body, the paper body being made of silicon-coated paper or ceramic fiber paper, the silicon-coated paper comprising a first silicone oil layer (1), a base paper layer (2), an oil-proof film layer (3), and a second silicone oil layer (4) which are sequentially connected, the oil-proof film layer (3) and the base paper layer (2) forming a composite film paper by coating, the composite film paper being composited with the first silicone oil layer (1) and the second silicone oil layer (4) to form an integral structure.

2. The cigarette paper for heated cigarettes according to claim 1, characterized in that: The first silicone oil layer (1) and the second silicone oil layer (4) are both polydimethylsiloxane layers, the base paper layer (2) is a non-ribbed cigarette fiber paper layer, and the oil-proof film layer (3) is a chitosan film layer, a sodium alginate film layer or a carboxymethyl chitosan-sodium alginate film layer.

3. The cigarette paper for heating cigarettes according to claim 2, characterized in that: The oil-proof film layer (3) and the base paper layer (2) are bonded by heat pressing to form a composite film paper; or the oil-proof film layer (3) and the base paper layer (2) are bonded by a roller coating sizing machine to form a composite film paper.

4. The cigarette paper for heating cigarettes according to claim 2, characterized in that: The silicon-coated paper is formed by dipping or coating the composite film paper, the first silicone oil layer (1), and the second silicone oil layer (4), and then drying and curing the formed paper.

5. The cigarette paper for heated cigarettes according to claim 1, characterized in that: The thickness of the ceramic fiber paper is 0.06 mm.

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