A cigarette filter filament and preparation method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
- Publication Date
- 2007-05-16
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to a cigarette filter tow and a preparation method thereof, in particular to a biodegradable lactic acid polymer cigarette filter tow and a preparation method thereof Background technique
[0002] Cigarette filter is an indispensable part of cigarettes. It can filter, block and absorb harmful components in the breath, such as nicotine and tar. harm. For a long time, two kinds of filter materials have been mainly used in the market, one is cellulose acetate fiber and the other is polypropylene fiber. Cellulose acetate is easily spun into fine denier fibers, and the bonding process from fiber to filter rod is relatively easy. The filter rod and filter tip made have superior comprehensive performance and are suitable for use in medium and high-end cigarettes. However, it uses high-quality wood as raw material, and the process from wood to wood pulp to cellulose acetate is accompanied by more pollution problems. Using dry spinning r...