Cigarette paper that gives a cigarette a uniform drawing profile

US10154687B2 · kind B2 · utility

Assignee

• DELFORTGROUP AG · AT

Inventors

• Dietmar Volgger · Schwaz, AT
• Stefan Bachmann · Heimbuchenthal, DE

Key dates

• Filing date: May 21, 2014
• Grant date: Dec 18, 2018
• Expiry date: Jul 3, 2034

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H21/14
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A cigarette paper is disclosed that contains at least one burn additive the concentration c(x) of which varies along a direction x of the cigarette paper. For the position-dependent concentration c(x) over an interval of length L, for x over the interval [0,L], ƒ(x)−Δc≤c(x)≤ƒ(x)+Δc. In this regard, 3 cm≤L≤11 cm, ƒ(x) is monotonic over the interval [0,L], but not a constant function over the entire interval, and Δc≤1% by weight, preferably ≤0.7% by weight and particularly preferably ≤0.5% by weight, and especially preferably ≤0.3% by weight and particularly preferably ≤0.15% by weight and Δc>0% by weight, each with respect to the mass of the cigarette paper.