Plug Wrap or Tipping Paper for Smoking Articles

Abstract

The present invention relates to plug wrap or tipping paper (5) for smoking articles (1). More particularly, the present invention relates to plug wrap or tipping paper for smoking articles, wherein the plug wrap and tipping paper comprises a sheet having two or more plies (10,11) and one of the plies comprises adsorbent material. The present invention also relates to a method of preparing the plug wrap and tipping paper, and smoking articles comprising the plug wrap and / or tipping paper.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a plug wrap for a smoking article. The present invention relates also to a tipping paper for a smoking article. The present invention relates also to a method of making a plug wrap or tipping paper for a smoking article.BACKGROUND[0002]Smoking articles are known wherein an adsorbent-containing web material is positioned between the smoking material rod and the wrapper therefor. For example, WO 2005 / 082180 discloses smoking articles comprising a rod of smokable material, a wrapper about the rod of smokable material and a web material comprising an adsorbent material and a flavourant, the web material being positioned between the rod of smokable material and the wrapper and advantageously being adhered to the wrapper using an adhesive. The adsorbent material may absorb components of the smoke produced from the smoking material rod, and for example may be carbon. In WO 2005 / 082180 a filler material such as calcium carbonate a...

AI Technical Summary

Benefits of technology

[0009]It is advantageous to include adsorbent material in the plug wrap or tipping paper for a number of reasons. In particular, the inclusion of adsorbent in the material constituting the plug wrap or tipping paper allows the use of smaller particles, having a greater surface area to volume ratio, than is found with granules included in filters for instance. Additionally, the inclusion of adsorbent in the material constituting the plug wrap or tipping paper avoids the need for adhesive to adhere adsorbent particles to a plug wrap, as is found for instance in EP 0 579 410. Other benefits and advantages will be apparent from the following description.

[0052]By practice of the present invention there may be provided of the following:a) a plug wrap and / or tipping paper that may be used in forming a smoking article and which enables a reduction in the vapour phase constituents of the smoke delivered to the smoker to be achieved;b) a plug wrap and / or tipping paper which can be produced having a thickness similar to that of conventional plug wrap and tipping paper such that the plug wrap and tipping paper can be used in conventional smoking article (e.g. cigarette) manufacturing machinery for producing smoking articles and thereby avoid the cost of additional machinery;c) a plug wrap and / or tipping paper comprising two or more plies with one of the plies comprising adsorbent material(s), which plug wrap and / or tipping paper can be formed remote from the smoking article making machine, this being advantageous as it reduces the complexity of the manufacturing machinery required by the smoking article manufacturer because the smoking article manufacturer does not require machinery to manufacture the sheet itself; andd) a plug wrap and / or tipping paper that enables flavourant to be incorporated and stabilised therein, such that the flavourant is not released until smoking of a smoking article.

Problems solved by technology

However, the above-mentioned documents do not disclose the use of such combined wrappers as a plug wrap or as tipping paper.

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