Core-shell capsule for reducing harmful components of mainstream smoke and preparation and application of core-shell capsule

Abstract

The invention discloses a core-shell capsule for reducing harmful components of mainstream smoke. The core-shell capsule comprises a wall material and a core material; the core material is a solutioncontaining a harm reduction additive; and the wall material is polylactic acid. The invention further discloses a preparation method of the core-shell capsule. The preparation method comprises the steps that the solution containing the harm reduction additive is used as a core material solution; an organic solvent dissolved with polylactic acid is used as a wall material solution; the core material solution and the wall material solution are immiscible; the core material solution is added dropwise through an inner hole of an electrospinning coaxial needle (referred to as a coaxial needle in the invention) and the wall material solution is added dropwise through inner and outer hole gaps of a coaxial needle together to a coagulating liquid, solid-liquid separation, washing and drying are performed after stirring, and the core-shell capsule is obtained. The polylactic acid is used as the wall material, is non-toxic and does not cause pollution to the environment, and the polylactic acidhas certain mechanical strength and does not need to be coated twice, so that the production cost is reduced.

Description

technical field [0001] The invention relates to the field of tobacco industry, in particular to a preparation method of a core-shell capsule for reducing harmful components of mainstream smoke. Background technique [0002] The harm of cigarettes to the human body mainly comes from the fact that the total particulate matter and gas phase matter in mainstream smoke contain a large number of harmful compounds when cigarettes are burned, such as carbon monoxide, phenol, hydrocyanic acid, specific N-nitrosamines, and crotonaldehyde in mainstream smoke , benzopyrene, ammonia and other harmful ingredients, long-term smoking and close contact with these harmful compounds will have a negative impact on the human body's breathing, digestion, blood, and nervous system. [0003] In the prior art, some methods that help reduce harmful components in mainstream smoke are disclosed. For example, the Chinese patent document with publication number CN101999750A discloses a method for reducin...

AI Technical Summary

Problems solved by technology

[0005] At present, most cigarette flavoring and harm-reducing additives are adsorption-type liquid or powder materials. The existing additive technology mainly adds additives to shredded tobacco and filter rods, but when added to shredded tobacco, powder additives are likely to cause dust and sometimes may Participating in the combustion at the same time as the cigarette is smoked will not only lose the proper harm reduction effect, but may also produce new harmful substances due to cracking. Or the aroma effect will have a greater impact

As a result, a variety of additives with good harm reduction effects cannot be applied industrially in cigarettes

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