Polypropylene tow for removing harmful substance from cigarette smoke

Abstract

A polypropylene tow for removing harmful matter from cigarette smoke contains adsorbent (4-8.5%) and polypropylene (91.5-96%). Said adsorbent contains zeolite molecular sieve with low Si / Al ratio of 2.5-10 and the molecualr sieve with high Si / Al ratio of 40-200. Said polypropylene tow can be made into tip filter of cigarette.

Description

technical field [0001] The invention provides a polypropylene tow that can effectively remove main harmful substances in cigarette smoke, and specifically prepares a polypropylene tow with a special adsorbent added. Background technique [0002] For a long time, in order to reduce or eliminate the harmful substances in cigarette smoke, such as tar, nicotine, etc., people have conducted many studies and adopted various measures and methods. The simplest and widely used technology is Add a kind of filter tip that acetate fiber, polypropylene fiber are prepared on cigarette, but because this method still can't get rid of harmful substance in cigarette smoke effectively, therefore, propose the technology of improving cigarette filter tip performance constantly again. Such as adding adsorbents such as one deck activated carbon and molecular sieves before the filter tip to prepare composite filter tip technology (CN94112700.1). However, although existing technologies can effectiv...

AI Technical Summary

Problems solved by technology

However, although existing technologies can effectively remove the main harmful substances in cigarette smoke, such as tar, aromatic hydrocarbons, aldehydes and NO x Chemicals, etc., but this technology needs to use equipment for producing composite filters, which requires a large investment and increases the preparation cost of filters, and has limitations in its comprehensive promotion and use.