Novel cigarette filter containing moisturizer

The use of lyocell fibers with a moisturizer and binder in cigarette filters addresses the limitations of cellulose acetate and paper filters by providing a stable, aesthetically pleasing, and uniformly resistant product that enhances vapor production and user satisfaction.

US20250098736A1Pending Publication Date: 2025-03-27KT&G CO LTD +1
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Patent Information

Application Number
US18/728212
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2023-01-16
Filing Date
2023-01-17
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

Conventional cigarette filters made of cellulose acetate or paper face challenges such as dissolution at high temperatures when moisturizers are added, leading to off-flavors, lengthy conditioning periods, non-uniform resistance, and aesthetically unpleasing cross-sections.

Method used

A cigarette filter utilizing lyocell fibers with a moisturizer and binder, where the moisturizer includes propylene glycol and glycerin, and the binder is dispersed within the lyocell tow using a brush or spray method, forming a stable and aesthetically pleasing filter.

Benefits of technology

The lyocell filter maintains shape at high temperatures, absorbs moisture rapidly, provides uniform resistance, and eliminates off-flavors, enhancing vapor production and user satisfaction compared to paper filters.

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Abstract

The present disclosure provides a cigarette filter including lyocell tow including a bundle of lyocell fibers, a moisturizer, and a binder, a smoking article including the cigarette filter, and a method of producing the cigarette filter.
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