Low ignition propensity cigarette paper

Abstract

A low ignition propensity cigarette paper includes base cigarette paper having a basis weight exceeding 22 g/m², and a plurality of burn limiting areas arranged apart from one another on one surface of the base cigarette paper. The burn limiting areas are formed by applying sodium alginate having a degree of polymerization of about 500 to about 900 or sodium alginate whose 3% by weight aqueous solution exhibits a viscosity of 19000 cP or more as measured at 25° C.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is a Continuation Application of PCT Application No. PCT / JP2007 / 055874, filed Mar. 22, 2007, which was published under PCT Article 21(2) in Japanese.[0002]This application is based upon and claims the benefit of priority from prior Japanese Patent Application No. 2006-095825, filed Mar. 30, 2006, the entire contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention relates to a low ignition propensity cigarette paper.[0005]2. Description of the Related Art[0006]A cigarette paper has been proposed which is reduced in the air permeability of base cigarette paper by applying a salt of alginic acid to at least a part of the base cigarette paper such that a cigarette is restrained from causing, for example, a floor to catch fire from the burning butt when the cigarette falls on the floor because of, for example, carelessness by the smoker (see Jpn. Pat. Appl...

AI Technical Summary

Benefits of technology

[0008]The inventors of the present invention have made studies as to the effect of sodium alginate out of salts of alginic acid on the actual ignition propensities of cigarette pape

Problems solved by technology

However, the actual ignition propensities

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