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Cigarette filter additive and preparation method and application thereof

A cigarette filter tip and additive technology, which is applied in the application, smoke oil filter, tobacco and other directions, can solve the problems of complex preparation process, unsuitable for large-scale industrial production, and high preparation cost, and achieves a simple preparation process and good industrial practicability. Effect

Active Publication Date: 2015-06-24
CHINA TOBACCO ZHEJIANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these harm-reducing materials or preparation processes are relatively complicated, the preparation cost is high, and they are not suitable for large-scale industrial production, or the selectivity reduction effect on crotonaldehyde is not ideal.

Method used

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  • Cigarette filter additive and preparation method and application thereof
  • Cigarette filter additive and preparation method and application thereof
  • Cigarette filter additive and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Disperse 0.2 g of poly(N-2-aminoethylacrylamide-) in 100 mL of aqueous hydrochloric acid and stir at 1000 rpm for 1 hour at 25 °C to obtain a dispersion of polyelectrolyte nanoparticles. Soak coconut shell charcoal for cigarettes in concentrated ammonia water for 2 hours, rinse with deionized water and dry at 105 °C. The dried coconut shell charcoal for cigarettes was impregnated into the dispersion of polyelectrolyte nanoparticles, and stood at 25 °C for 2 h, and the surface was loaded with polyelectrolyte nanoparticles by electrostatic drive in situ growth, filtered and washed. and drying to obtain a filter additive. Wherein, the mass percent content of the polyelectrolyte nanoparticles in the additive is about 0.1%.

[0025] The above-mentioned additives are applied to cigarette filters, and the added amount in each cigarette filter is about 45 mg. To measure the release of tar and crotonaldehyde in mainstream smoke of cigarettes, and to evaluate the influence of f...

Embodiment 2

[0029] Disperse 0.1 g of poly(N-2-aminoethylmethacrylamide) in 100 mL of aqueous hydrochloric acid and stir at 1500 rpm for 1.5 hours at 30 °C to obtain a dispersion of polyelectrolyte nanoparticles. Soak coconut shell charcoal for cigarettes in concentrated ammonia water for 2 hours, rinse with deionized water and dry at 105 °C. The dried coconut shell charcoal for cigarettes was impregnated into the dispersion of polyelectrolyte nanoparticles, and stood at 30 °C for 3 h, and the surface was loaded with polyelectrolyte nanoparticles by electrostatically driven in-situ growth, filtered and washed. and drying to obtain a filter additive. Wherein, the mass percent content of the polyelectrolyte nanoparticles in the additive is about 0.5%.

[0030] The above-mentioned additives are applied to cigarette filters, and the added amount in each cigarette filter is about 30 mg. To measure the release of tar and crotonaldehyde in mainstream smoke of cigarettes, and to evaluate the inf...

Embodiment 3

[0034] Disperse 0.5 g of polymethacrylamide in 100 mL of aqueous hydrochloric acid and stir at 2000 rpm for 2 hours at 30 °C to obtain a dispersion of polyelectrolyte nanoparticles. Soak coconut shell charcoal for cigarettes in concentrated ammonia water for 2 hours, rinse with deionized water and dry at 105 °C. The dried coconut shell charcoal for cigarettes was impregnated into the dispersion of polyelectrolyte nanoparticles, and stood at 30 °C for 1 h, and the surface was loaded with polyelectrolyte nanoparticles by electrostatically driven in-situ growth, filtered and washed. and drying to obtain a filter additive. Wherein, the mass percent content of the polyelectrolyte nanoparticles in the additive is about 1%.

[0035] Apply the above-mentioned additives to cigarette filters, and the added amount in each cigarette filter is about 15 mg. To measure the release of tar and crotonaldehyde in mainstream smoke of cigarettes, and to evaluate the influence of filter tip addit...

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Abstract

The invention relates to a cigarette filter additive. According to the cigarette filter additive, cigarette coconut shell charcoal serves as a carrier, and the surface of the carrier is loaded with polyelectrolyte nano particles. The polyelectrolyte nano particles are amphiphilic polyelectrolyte self-assembly aggregate, and amphiphilic polyelectrolyte is an amphiphilic polymer containing amidogen. The mass percentage of the polyelectrolyte nano particles to the filter additive ranges from 0.05% to 5.0%. According to a cigarette filter prepared through the additive, the release amount of crotonaldehyde in cigarette smoke is effectively and selectively reduced through the special structure that the surface of the cigarette coconut shell charcoal is loaded with the nano particles and functional groups of the loaded polyelectrolyte nano particles. Compared with commercially-available cigarettes of the same specification, the cigarette filter prepared through the filter additive can make the release amount of crotonaldehyde in the cigarette smoke selectively reduced by about 20% to 60%. The filter additive is simple in preparation process and has good industrial practicality.

Description

technical field [0001] The invention relates to the technical field of cigarette harm reduction, in particular to a filter additive for selectively reducing the release of crotonaldehyde in cigarette smoke, a preparation method and application thereof. Background technique [0002] Crotonaldehyde is a toxin of the cilia of the respiratory tract, which has a strong stimulating effect on the conjunctiva and upper respiratory tract mucous membrane. Long-term exposure can easily cause chronic rhinitis, nervous system dysfunction, conjunctivitis, corneal damage, etc. It is recognized as a toxic substance in cigarette smoke. One of the trace harmful ingredients. [0003] At present, there have been some reports on how to effectively reduce the release of crotonaldehyde in cigarette smoke, such as a Chinese patent CN 102942655 A which reports a compound composed of methacrylic acid, acrylamide, 2-vinylpyridine and 4-vinyl Pyridine is a functional monomer, methanol, 2-chloromethane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/06
CPCA24D3/06
Inventor 周国俊储国海李霞徐建刘金莉肖卫强胡安福杨洋
Owner CHINA TOBACCO ZHEJIANG IND
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