KR-102961439-B1 - Stable wrapper for aerosol-generating products

KR102961439B1KR 102961439 B1KR102961439 B1KR 102961439B1KR-102961439-B1

Abstract

A wrapper used in a smoking article. The wrapper has low grease permeability or visual spots and can be used with an aerosol generating substrate. The aerosol generating article (10) comprises an aerosol generating substrate (12) comprising nicotine and a gel composition. The wrapper is placed around and contacts the aerosol generating substrate. The wrapper comprises a paper layer (50) including a surface treatment such that the paper has a negative result for at least one kit oil sample of method Tappi 559cm-02, classical method 2002.

Inventors

조이, 띠어리

Assignees

필립모리스 프로덕츠 에스.에이.

Dates

Publication Date: 20260508
Application Date: 20200608
Priority Date: 20190610

Claims (15)

As an aerosol-generating article, An aerosol generating substrate comprising nicotine and more than 20 weight% of an aerosol forming agent; and An aerosol generating article comprising a wrapper disposed around and in contact with the aerosol generating substrate, wherein the wrapper comprises a paper layer having a surface treatment, said paper having a negative result for at least one kit oil sample of the method of method Tappi 559cm-02, classical method 2002.
An aerosol-generating article according to claim 1, wherein the paper layer has a negative result for at least 5 kit oil samples of method Tappi 559cm-02, classical method 2002, or a negative result for all 10 kit oil samples of Tappi 559cm-02, classical method 2002.
The aerosol generating article according to claim 1, wherein the paper layer has a basis weight in the range of 25 g/ m² to 45 g/ m² and a thickness in the range of 35 μm to 50 μm.
In claim 1, the paper layer comprises PVOH or siloxane, an aerosol-generating article.
In paragraph 4, the paper layer comprises a surface treatment including PVOH or siloxane, an aerosol-generating article.
In paragraph 4, the paper layer is an aerosol-generating article comprising PVOH.
In paragraph 4, the paper layer is an aerosol-generating article comprising siloxane.
In claim 1, the aerosol generating material comprises an aerosol generating article including a gel composition.
In claim 8, the gel composition is an aerosol generating article comprising a majority of glycerin.
In claim 9, the gel composition is an aerosol generating article comprising xanthan gum.
In claim 1, the aerosol-forming substrate comprises an aerosol-generating article comprising a homogenized tobacco substance.
In claim 11, the homogenized tobacco material is an aerosol generating article comprising a tobacco material, 1% to 5% of a binder based on dry weight, and 5% to 30% of an aerosol forming agent.
In claim 1, the aerosol generating material comprises an aerosol generating article including a metal induction heating element.
In paragraph 13, the aerosol generating material comprises a plurality of metal induction heating elements, an aerosol generating article.
An aerosol generating article according to any one of claims 1 to 14, wherein the paper layer is in direct contact with the aerosol generating substrate.

Description

Stable wrapper for aerosol-generating products The present disclosure relates to a wrapper used in smoking articles, wherein the wrapper has low grease permeability or visual spots and can be used with an aerosol generating substrate. Aerosol generating articles are known in the art in which an aerosol generating material, such as a tobacco-containing material, is heated rather than burned. Typically, in such heated aerosol generating articles, an aerosol is generated by heat transfer from a heat source to a physically separated aerosol generating material or material that may be located in contact with the heat source, inside the heat source, around the heat source, or downstream of the heat source. During use of the aerosol generating article, volatile compounds are released from the aerosol generating material by heat transfer from the heat source and entrained into the air drawn through the aerosol generating article. As the released compounds cool, they condense to form an aerosol. Paper used to package aerosol generating substrates can absorb mainstream smoke passing through the aerosol generating article, aerosol forming agents found in the aerosol, water, other liquid compounds, or moisture or water surrounding the paper. Absorbed liquids can stain or weaken the paper and negatively affect the appearance and structural integrity of the aerosol generating article. Heated aerosol generating articles are particularly susceptible to wetting and breakdown due to the high levels of aerosol forming agents within the aerosol generating substrate of these articles. Heated aerosol generating articles are particularly susceptible to swelling, as aerosol components are absorbed by the wrapper, resulting in difficulty in removing them from the heating device. Heated aerosol generating articles are particularly susceptible to breakage when they are tightly received from the heating device and then removed. In particular, for aerosol generating articles containing high levels of liquid or aerosol-forming agents, it would be desirable to provide a packaged aerosol generating substrate that is visually and mechanically stable. It would be desirable to provide an aerosol generating article comprising a wrapper that does not swell by absorbing water or a compound contained in an aerosol generating substrate. It would be desirable to provide an aerosol generating article comprising a wrapper that provides a grease barrier to a grease compound contained in an aerosol generating substrate. In addition, it would be desirable that such a wrapper does not affect the taste of the aerosol generated by the aerosol-generating product. In addition, when in close proximity to a heating element, it would be desirable that these wrappers do not burn easily. The object of the present invention may be to partially solve at least one or more of the aforementioned desirable technical advantages. According to the present disclosure, an aerosol generating article is provided, comprising an aerosol generating substrate containing nicotine and a wrapper disposed around the aerosol generating substrate. The wrapper comprises a paper layer having a negative result for at least one kit oil sample of method Tappi 559cm-02, classical method 2002. According to the present disclosure, an aerosol generating article is provided, comprising an aerosol generating substrate comprising nicotine and a gel composition, and a wrapper disposed around and in contact with the aerosol generating substrate. The wrapper comprises a paper layer including a surface treatment such that the paper has a negative result for at least one kit oil sample of method Tappi 559cm-02, classical method 2002. According to the present disclosure, an aerosol generating article is provided. The aerosol generating article may comprise an aerosol generating substrate. The aerosol generating substrate may comprise a wrapper. The wrapper may be disposed around the aerosol generating substrate. The wrapper comprises a paper layer having a negative result for at least one kit oil sample of method Tappi 559cm-02, classical method 2002. Preferably, the paper layer has negative results for at least five kit oil samples of method Tappi 559cm-02, classical method 2002. Preferably, the paper layer has negative results for at least eight kit oil samples of method Tappi 559cm-02, classical method 2002. Preferably, the paper layer has negative results for all ten kit oil samples of method Tappi 559cm-02, classical method 2002. Preferably, the paper layer has a thickness/basis weight in the range of about 1.0 μm/gsm to about 1.2 μm/gsm. The paper layer may have a thickness of less than about 50 μm, or less than about 40 μm. The wrapper comprises a paper layer having a basis weight in the range of about 25 gsm to about 45 gsm, or about 35 gsm to about 40 gsm. Preferably, the paper layer has a basis weight in the range of about 25 gsm to about 45 gsm, and a thickness in the range of about 35 μm to