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Chitosan polycation additive for reducing phenols in cigarette smoke

A technology for cigarette smoke and additives, which is applied in the fields of tobacco, smoke oil filter, food science, etc., can solve the problems of increasing harmful components, complicated preparation process, influence of smoke taste, etc., so as to avoid the loss of flavor components, maintain internal quality, The effect of reducing harmful phenolic components

Active Publication Date: 2011-01-19
CHINA TOBACCO ZHEJIANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent ZL 200710162960.8 discloses mixing extracts of some Chinese herbal medicines into shredded tobacco as a method to reduce harmful phenolic substances in cigarette smoke, but this method may affect the normal combustion of shredded tobacco and affect the taste of the smoke. even increase other harmful ingredients
Chinese patent application CN200910307638.9 discloses that calixarene in solid powder form is directly added to cigarette filters as an additive, which can reduce phenol by about 40%, but the toxicity of calixarene itself has yet to be considered
In addition, Chinese patent application CN200810031589.6 and Chinese patent application CN200710034453.6 respectively disclose ionic liquids and metal oxides as additives for filter rods, and have a certain effect of reducing phenols; however, the preparation process of these two substances is relatively complicated, and The health and safety of filters added with ionic liquids or metal oxides needs further investigation

Method used

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  • Chitosan polycation additive for reducing phenols in cigarette smoke
  • Chitosan polycation additive for reducing phenols in cigarette smoke
  • Chitosan polycation additive for reducing phenols in cigarette smoke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Dissolve chitosan hydrochloride in water to prepare a 10 mg / mL polycation solution, then immerse 5.0 g of powdered silica gel into 10 ml of the above polycation solution, soak for 6 hours, filter, and dry the obtained solid at 60 ° C for 12 hours to obtain The additive, the mass percentage of the polycation loaded in the additive is 1.5%. Through infrared spectrum characterization analysis, the infrared spectrum of the additive is 1000~1100cm -1 The appearance of the characteristic peak and the measured value of the zeta potential of +23mV verified that chitosan hydrochloride was successfully loaded on the powdered silica gel, and a granular porous material loaded with chitosan hydrochloride was obtained.

[0030] After testing, the particle size of the additive is 0.3mm, and the specific surface area is 600m 2 / g, the mass moisture content is 30%.

[0031] The above-mentioned additives are evenly added to the loosened cellulose acetate tow on the filter rod forming m...

Embodiment 2

[0036] Dissolve chitosan hydrochloride in water to prepare a 5mg / mL polycation solution, then immerse 5.0g of granular diatomaceous earth into 15ml of the above polycation solution, soak for 3h, filter, and dry the obtained solid at 60°C for 12h , to obtain the additive, and the mass percent content of the polycation loaded in the additive is 0.9%. Through infrared spectrum characterization analysis, the infrared spectrum of the additive is 1000~1100cm -1 The appearance of the characteristic peak and the measured value of the zeta potential of +29mV verified that chitosan hydrochloride was successfully loaded on the granular diatomite, and a granular porous material loaded with chitosan hydrochloride was obtained.

[0037]After testing, the particle size of the additive is 0.1mm, and the specific surface area is 750m 2 / g, the mass moisture content is 20%.

[0038] The above-mentioned additives are evenly added to the loosened cellulose acetate tow on the filter rod forming ...

Embodiment 3

[0043] Chitosan hydrochloride was dissolved in water to prepare a 10mg / mL polycation solution, and then 2.0g granular molecular sieves were immersed in 20ml of the above polycation solution, soaked for 8h, filtered, and the obtained solid was baked at 60°C for 12h to obtain Additives, the mass percentage of polycations loaded in the additives is 5%. Through infrared spectrum characterization analysis, the infrared spectrum of the additive is 1000~1100cm -1 The appearance of the characteristic peak and the measured value of the zeta potential of +25mV verified that chitosan hydrochloride was successfully loaded on the granular molecular sieve, and a granular porous material loaded with chitosan hydrochloride was obtained.

[0044] After testing, the particle size of the additive is 0.5mm, and the specific surface area is 300m 2 / g, the mass moisture content is 40%.

[0045] The above-mentioned additives are rolled and formed on a filter rod forming machine to form a composite...

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Abstract

The invention discloses a chitosan polycation additive for reducing phenols in cigarette smoke. The additive is characterized in that the additive takes the granular porous materials as the carrier and hydrophilic polycation materials are loaded on the porous materials; and the hydrophilic polycation is chitosan hydrochloride. When applied to preparing the cigarette filters, the additive can selectively reduce the phenols in the cigarette smoke by utilizing own moisture, at the same time, as most aromatic organic compounds are insoluble in water, the additive can avoid aroma component loss while reducing the phenols in the cigarette smoke and maintain the inner quality of the cigarette.

Description

technical field [0001] The invention relates to the technical field of tar reduction and harm reduction of cigarettes, in particular to a chitosan polycation additive for selectively reducing the content of phenolic substances in cigarette smoke. Background technique [0002] For a long time, the world tobacco industry has always attached great importance to reducing the harm and tar of cigarettes. In recent years, WHO has made specific regulations on the control of harmful components in smoke, which have received positive responses from countries all over the world. Aiming at various harmful components in cigarette smoke, researchers have developed a variety of harm reduction technologies, among which the modification of cigarette filters is one of the most effective means of harm reduction; by adding or compounding nanomaterials, Polymer materials and biological materials can effectively reduce some harmful components of cigarette smoke. [0003] There are many component...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30A24D3/14
Inventor 储国海周国俊林贤福金鑫徐键刘金莉
Owner CHINA TOBACCO ZHEJIANG IND
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