Invention Grant
- Patent Title: Cigarette paper with improved air-permeability
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Application No.: US14413050Application Date: 2013-04-29
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Publication No.: US09635882B2Publication Date: 2017-05-02
- Inventor: Bernhard Eitzinger , Maria Gleinser
- Applicant: DELFORTGROUP AG
- Applicant Address: AT Traun
- Assignee: delfortgroup AG
- Current Assignee: delfortgroup AG
- Current Assignee Address: AT Traun
- Agency: Sunstein Kann Murphy & Timbers LLP
- Priority: DE102012106154 20120709
- International Application: PCT/EP2013/001276 WO 20130429
- International Announcement: WO2014/008962 WO 20140116
- Main IPC: A24D1/02
- IPC: A24D1/02 ; D21H17/26 ; D21H17/29 ; D21H27/02 ; D21H27/08 ; D21H27/00

Abstract:
A cigarette paper is shown which has the following properties over at least a part of its surface: no artificial perforation, the air permeability is at least 15 CU, preferably at least 20 CU, and especially preferably at least 25 CU, and for the exponent k, measured with a measuring head with a rectangular opening of 2 mm by 15 mm, in accordance with ISO 2965:2009, which is defined by k = log Q 1 Q 2 log p 1 p 2 with Q1: air-flow through the paper at a pressure difference p1=1.00 kPa and Q2: air-flow through the paper at a pressure difference p2=0.25 kPa, the following holds k≦0.98, preferably k≦0.95, especially preferably k≦0.93, and k≧0.80, preferably k≧0.85.
Public/Granted literature
- US20150164132A1 Cigarette Paper with Improved Air-Permeability Public/Granted day:2015-06-18
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