Application of cross-linked chitosan porous microspheres in cigarette filter tips

Abstract

The invention relates to the application of cross-linked chitosan porous microspheres in cigarette filter tips. During the filter stick forming process, the cross-linked chitosan porous microspheres are uniformly sprayed into tobacco shreds, paper filter elements or non-woven filter cloth or added into the cavities of three-element hollow filter sticks. The cross-linked chitosan porous microspheres are porous spherical particles with a specific surface area of 35-300 m2 / g. The microspheres particle size distribution range of the cross-linked chitosan porous microsphere is 10-500 Mum, and the pore size is 5-100 nm. The additional amount of the cross-linked chitosan porous microspheres is 10-260 mg / cigarette. The volume of natural stack of the cross-linked chitosan porous microspheres is 0.6-3.0 cm3 / g. the cross-linked chitosan porous microspheres provided by the invention can satisfy the need for filter stick forming process. The release of crotonaldehyde in the main stream smoke of cigarettes can be effectively reduced by adding the cross-linked chitosan porous microspheres into the filter sticks.

Description

technical field [0001] The invention belongs to the technical production field of auxiliary materials for cigarettes, and in particular relates to a particle additive material for cigarette filters, which can effectively reduce the release of crotonaldehyde in mainstream smoke of cigarettes. Background technique [0002] Since the 1950s, with the continuous deepening of research on smoking and health, the safety of smoking has been paid more and more attention. In recent years, under the active promotion of the World Health Organization, many national governments and anti-smoking groups, the global anti-smoking movement has been on the rise. The "Framework Treaty on Tobacco Control" formulated by the World Health Organization and signed by all member governments Strict restrictions have been imposed on tobacco products, and the tobacco industry is under increasing social pressure. In order to better develop Chinese-style cigarettes and improve the overall competitiveness of...

AI Technical Summary

Problems solved by technology

However, the natural chitosan material has a low specific surface area and weak adsorption capacity for gas phase and semi-volatile components

Moreover, due to the loose texture and low density of the natural chitosan material, it is difficult to meet the requirements of the filter rod forming process and cannot be directly applied to the filter rod processing