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

A technology of cross-linked chitosan and porous microspheres, applied in the application, smoke oil filter, tobacco and other directions, can solve the problem that the adsorption capacity of gas phase and semi-volatile components is weak, it is difficult to meet the requirements of the filter rod forming process, and the filter cannot be directly applied. Rod processing and other issues, to achieve good cigarette harm reduction effect, good biocompatibility and safety, and high specific surface area.

Active Publication Date: 2012-11-28
CHINA TOBACCO FUJIAN IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Set the specific surface area to 300m 2 / g, the particle size distribution range of microspheres is 10~15μm, the pore size of micropores is 5~20nm, and the natural accumulation volume is 0.6cm 3 / g cross-linked chitosan porous microspheres are evenly sprinkled in the paper filter element, the addition amount is 30mg / piece, and the prepared filter rod is applied to cigarettes in the form of a composite filter rod. The amount of crotonaldehyde released in mainstream smoke was 43.5%. The paper filter rod loaded with cross-linked chitosan porous microspheres has no negative impact on the sensory quality of cigarettes, and at the same time can increase the penetration of cigarette aroma and improve smoking comfort.

Embodiment 2

[0024] Set the specific surface area to 35m 2 / g, the microsphere particle size distribution range is 400~500μm, the micropore diameter is 80~100nm, and the natural accumulation volume is 3.0cm 3 / g of cross-linked chitosan porous microspheres is added to the cavity of the ternary cavity filter stick by vacuum feeding, and the addition amount is 90 mg / piece, and the prepared ternary composite filter stick is applied to cigarettes, tobacco Gas detection, reducing the release of crotonaldehyde in mainstream smoke by 38.6% year-on-year. The cross-linked chitosan porous microsphere ternary composite filter stick has no negative impact on the sensory quality of cigarettes, and at the same time can increase the penetration of cigarette aroma and improve smoking comfort.

Embodiment 3

[0026] The specific surface area is 242m 2 / g, the microsphere particle size distribution range is 30~80μm, the micropore diameter is 20~40nm, and the natural accumulation volume is 0.8cm 3 / g of cross-linked chitosan porous microspheres is evenly sprinkled on the tow, and the addition amount is 40mg / branch. The cross-linked chitosan microsphere composite filter rod is applied to cigarettes. The amount of crotonaldehyde released in mainstream smoke was 31.5%. The cross-linked chitosan porous microsphere composite filter rod has no negative impact on the sensory quality of cigarettes, and at the same time can increase the penetration of cigarette aroma and improve smoking comfort.

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): A24D3/14
Inventor 徐建荣林凯郑琳李桂珍张毅立马涛尧珍玉陈婉
Owner CHINA TOBACCO FUJIAN IND
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