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Low fire spreading cigarette

A flame spread, cigarette technology, applied in the direction of tobacco, manufacturing paper cigarettes, manufacturing cigars, etc., can solve problems such as increasing the production cost of cigarettes

Inactive Publication Date: 2005-02-16
JAPAN TOBACCO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And, said additional element can increase the production cost of cigarette substantially

Method used

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  • Low fire spreading cigarette
  • Low fire spreading cigarette
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 and figure 2 The low flame spread cigarette of the first embodiment is shown. The cigarette comprises: a paper tube 2 ; shredded tobacco filler filled in the paper tube 2 ; and a filter sheet 4 connected to one end of the paper tube 2 . The tobacco filler consists of smokable tobacco material.

[0033] The shredded tobacco filler forms a double-layer concentric structure, which includes: a core-shaped high-density area 6 at the center; and a sleeve-shaped low-density area 8 formed outside the high-density area 6 . The cross section of the high-density area 6 forms a circle up to the full length of the paper tube 2 and extends along the paper tube 2 to the axial direction. The low-density zone 8 is located between the paper tube 2 and the high-density zone 6 , up to the full length of the high-density zone 6 and surrounds the high-density zone 6 . Therefore, viewed from the cross-section of the cigarette, the low-density area 8 connects to the entire inner ...

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PUM

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Abstract

A low ignition propensity cigarette according to the invention includes a high-density region (6) formed in the center of the paper tube (2) and containing normal shred tobacco filled to a filling density of 0.15 to 0.35 g / cm<3>, for example 0.25g / cm<3>, and a low-density region (8) formed between the paper tube (2) and the high-density region (6) and containing expanded shred tobacco filled to a filling density of 0.05 to 0.15 g / cm<3>, for example 0.14 g / cm<3>. The thickness of the low-density region (8) defined between the paper tube (2) and the high-density region (6) is in the range of 1 to 3 mm.

Description

technical field [0001] The present invention relates to a low-flame-spreading cigarette capable of suppressing the spread of combustible combustion caused by the lit cigarette even if the lit cigarette falls on the floor or other combustibles. Background technique [0002] During smoking of a lit cigarette, the burning zone of the lit cigarette must be maintained without being extinguished even during the smoker's puff period, the so-called puff period. Therefore, even if the interval between puffing is very long, the smoker can still repeatedly inhale the lit cigarette. [0003] However, if it is assumed that a lighted cigarette is dropped on a combustible material such as a floor due to carelessness of a smoker, natural combustion of the lit cigarette may cause the spread of combustion of the combustible material. Therefore, in the field of the tobacco industry, it is desired to research and develop a cigarette that can suppress the spread of combustion under the above co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24C5/18A24D1/00
CPCA24C5/1821A24D1/00A24D1/20
Inventor 松藤高明塘健夫
Owner JAPAN TOBACCO INC
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