Electrically conductive heat-generating composite paper

Abstract

The application discloses a conductive heating composite paper for a peripheral heating type heated cigarette tobacco smoking section, which can effectively avoid the generation of "paper taste" when the smoking section is heated, and sequentially comprises a base paper, a temperature-lowering and heat-insulating material layer and an electro-induced heating type material coating from the outside to the inside, and the electric conductivity of the electro-induced heating type material coating (3) is 1000-50000 s / m. The application can effectively solve the problems of "paper taste" generated by the smoking section of the peripheral heating type heated cigarette during the heating process and the deformation of the end of the heated cigarette.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating cigarette paper, in particular to a conductive heating composite paper. BACKGROUND

[0002] The peripheral heating type of heating cigarette has a higher heating area than the common needle type of heating, and thus can achieve a higher utilization rate of the sheet, but the existing peripheral heating method directly heats the composite aluminum foil roll paper wrapping the heating cigarette through the cavity of the appliance, and the base paper will directly contact the high-temperature heat source, thus causing an uncomfortable "paper taste" during the smoking process of the peripheral heating cigarette.

[0003] In addition, the existing aluminum foil composite roll paper for heating cigarettes has poor resilience, and thus the problem of insufficient aesthetics caused by deformation of the end portion occurs. SUMMARY

[0004] To solve the above technical problems, the present application provides a conductive heating composite paper, which can effectively solve the problems of "paper taste" during the smoking process of the peripheral heating type of heating cigarette and easy deformation of the end portion of the heating cigarette.

[0005] The technical scheme provided by the present application is as follows:

[0006] A conductive heating composite paper, which is used for the tobacco smoking section of the peripheral heating type of heating cigarette and can effectively avoid the generation of "paper taste" during the heating of the smoking section, and comprises, from the outside to the inside, a base paper, a temperature-lowering and heat-insulating material layer, and an electro-heat-generating material coating.

[0007] Preferably, the thermal conductivity coefficient of the temperature-lowering and heat-insulating material layer is 0.01-1 w / (m·K).

[0008] Preferably, the material composition of the temperature-lowering and heat-insulating material layer comprises one or a combination of several of polylactic acid, modified polylactic acid, polyvinylpyrrolidone, and polydimethylsiloxane.

[0009] Preferably, the electrical conductivity of the electro-heat-generating material coating is 1000-50000 s / m.

[0010] Preferably, the material composition of the electro-heat-generating material coating comprises one or a combination of several of carbon-based material, metal oxide ceramic material, and metal alloy material.

[0011] Preferably, the carbon-based material comprises one or a combination of several of graphite, carbon fiber, carbon nanotube, and carbon black.

[0012] Preferably, the metal oxide ceramic material comprises one or a combination of several of iron oxide, tungsten oxide, and chromium oxide.

[0013] Preferably, the metal alloy material includes one or a combination of iron-chromium-aluminum alloy, nickel-chromium alloy, and tungsten-manganese alloy.

[0014] This application has the following advantages over the prior art:

[0015] The conductive heating composite paper of the present invention is composed of base paper, a cooling and heat-insulating material layer and an electrothermal material coating. When the conductive heating composite paper is applied to heated cigarettes, when the heated cigarettes are heated by peripheral heating, the base paper will not be heated at high temperatures, and the paper smell carried in the smoke during the traditional peripheral heating process can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the structure of the conductive heat-generating composite paper in an embodiment of the present invention.

[0018] Reference numerals:

[0019] 1. Base paper; 2. Cooling and heat insulation material layer; 3. Electrothermal material coating. DETAILED DESCRIPTION

[0020] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0021] like Figure 1 As shown, an embodiment of the present invention provides a conductive heating composite paper. This conductive heating composite paper is used in the tobacco smoking section of a peripheral heating type heated cigarette to effectively prevent the "paper smell" produced when the smoking section is heated. From the outside to the inside, it comprises a base paper 1, a cooling and heat-insulating material layer 2, and an electrothermal coating 3. The cooling and heat-insulating material layer 2 in the middle layer prevents heat from being transferred to the base paper during heating, thus avoiding the paper smell produced by the high-temperature heating of the base paper 1. The electrothermal coating 3 achieves rapid heating under conductive conditions.

[0022] In the embodiment, the thermal conductivity of the temperature-lowering insulation material layer 2 is 0.01-1 w / (m·K), and the material composition of the temperature-lowering insulation material layer 2 includes one or a combination of polylactic acid, modified polylactic acid, polyvinylpyrrolidone, and polydimethylsiloxane.

[0023] In the embodiment, the electrical conductivity of the electrocaloric material coating is 1000-50000 s / m. The material composition of the electrocaloric material coating includes one or a combination of carbon-based materials, metal oxide ceramic materials, and metal alloy materials. The carbon-based materials include one or a combination of graphite, carbon fiber, carbon nanotube, and carbon black; the metal oxide ceramic materials include one or a combination of iron oxide, tungsten oxide, and chromium oxide; and the metal alloy materials include one or a combination of iron-chromium-aluminum alloy, nickel-chromium alloy, and tungsten-manganese alloy.

[0024] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A conductive heating composite paper, characterized in that: The conductive heating composite paper is used for the tobacco smoking section of a peripheral heating type heated cigarette and can effectively prevent the "paper smell" generated when the smoking section is heated. From the outside to the inside, it comprises a base paper (1), a cooling and heat-insulating material layer (2), and an electrothermal material coating (3). The conductivity of the electrothermal material coating (3) is 1000 to 50000 s / m. The material composition of the electrothermal material coating (3) includes one or a combination of carbon-based materials, metal oxide ceramic materials, and metal alloy materials.

2. The conductive heat-generating composite paper according to claim 1, characterized in that: The thermal conductivity of the temperature-reducing and heat-insulating material layer (2) is 0.01-1 w / (m·K).

3. The conductive heat-generating composite paper according to claim 1, characterized in that: The material composition of the temperature-reducing and heat-insulating material layer (2) includes one or a combination of polylactic acid, modified polylactic acid, polyvinyl pyrrolidone and polydimethylsiloxane.

4. The conductive heat-generating composite paper according to claim 1, characterized in that: The carbon-based material includes one or a combination of graphite, carbon fiber, carbon nanotube and carbon black.

5. The conductive heat-generating composite paper according to claim 1, characterized in that: The metal oxide ceramic material includes one or a combination of iron oxide, tungsten oxide, and chromium oxide.

6. The conductive heat-generating composite paper according to claim 1, characterized in that: The metal alloy material includes one or a combination of iron-chromium-aluminum alloy, nickel-chromium alloy, and tungsten-manganese alloy.

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