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Plug Wrap or Tipping Paper for Smoking Articles

a technology of plug wraps and smoking articles, which is applied in the field of plug wraps for smoking articles, can solve the problems of not disclosing the use of such combined wrappers as plug wraps or tipping, and achieve the effects of reducing vapour phase constituents in smoke, improving filter efficiency, and increasing the reduction of vapour phase components

Inactive Publication Date: 2011-07-28
BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a plug wrap or tipping paper for a smoking article that includes a sheet with two layers. The first layer is made of fibrous material, while the second layer is made of fibrous material and adsorbent material. The inclusion of adsorbent material in the second layer allows for the use of smaller particles with greater surface area to volume ratio than granules, which avoids the need for adhesive. The fibrous material can be a paper material, such as a cellulosic paper, and can be present in the second layer in an amount of up to (40 gsm). The second layer can also contain a flavourant, which can be added prior to or after formation of the layer. The flavourant can be in powder or particulate form and can be applied in a line or in an array. The plug wrap or tipping paper has a thickness of at least (45 μm. The second layer can also contain diluent. The inclusion of adsorbent material in the second layer allows for the use of smaller particles with greater surface area to volume ratio than granules, which avoids the need for adhesive. The flavourant can be added to the second layer using a flavour applicator means, such as spraying or heating. The plug wrap or tipping paper can be formed by a method where the layers are integral to each other.

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.

Method used

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  • Plug Wrap or Tipping Paper for Smoking Articles
  • Plug Wrap or Tipping Paper for Smoking Articles
  • Plug Wrap or Tipping Paper for Smoking Articles

Examples

Experimental program
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Embodiment Construction

[0060]FIG. 1 shows a smoking article 1 in longitudinal cross-section. The smoking article 1 comprises a rod 2 of smokable material enwrapped by a wrapper 4 and a filter rod 3. The filter rod 3 is positioned at a mouth end of the smoking article 1. The filter rod 3 is enwrapped by a plug wrap 5. The filter rod 3 is attached to the rod of smokable material 2 by a tipping paper 6. Each of the wrapper 4, the plug wrap 5 and the tipping paper 6 is made of a respective single sheet.

[0061]The plug wrap 5 extends for the entire length of the filter rod 3 in the longitudinal axis of the smoking article 1. The plug wrap 5 thus enwraps the entire radial surface of the filter rod 3.

[0062]The filter rod 3 may be a multiple filter comprising multiple sections such as, for example, a dual or triple filter. Suitable filters are well known to those skilled in the art. The filter 3 may include adsorbent material, for instance activated carbon, for the reduction of vapour phase constituents of smoke. ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A24D1/02D21H27/30A24D3/06
CPCA24C5/56A24D3/048A24D1/02A24D3/17
Inventor HOOPER, NICOLEGRIERSON, GORDON
Owner BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
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