Water-packaging capsule and one-step forming preparation method thereof and application of water-packaging capsule in cigarettes

A molding method and water capsule technology, applied in the field of the tobacco industry, can solve the problems of application in the field of difficult cigarettes, complicated processes, difficulty in obtaining millimeter-sized capsules, etc., and achieve the effects of simple method, controllable particle size, and controllable size.

Pending Publication Date: 2019-08-23
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing one-step molding method of water-encapsulated capsules has a complicated process, and it is difficult to obtain millimeter-sized capsules, which is difficult to apply in the field of cigarettes

Method used

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  • Water-packaging capsule and one-step forming preparation method thereof and application of water-packaging capsule in cigarettes
  • Water-packaging capsule and one-step forming preparation method thereof and application of water-packaging capsule in cigarettes
  • Water-packaging capsule and one-step forming preparation method thereof and application of water-packaging capsule in cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Weigh 12 g of polyvinyl alcohol and dissolve it in 400 mL of deionized water at 80° C. to obtain a polyvinyl alcohol solution.

[0093] Weigh 3g of polylactic acid particles and dissolve in 30mL of dichloromethane to obtain a polylactic acid solution.

[0094] Put the polylactic acid solution and deionized water into syringes respectively, place them on two syringe pumps, connect the coaxial double-needle reactor, and the flow rates of the two syringe pumps are 5mL / h (water flow rate) and 8mL / h respectively. (the flow rate of the polylactic acid solution), drop into the polyvinyl alcohol solution, mechanically stir for 6 hours, the stirring speed is 250r / min, the product is vacuum filtered, washed with deionized water, and then collected to obtain polylactic acid-in-water capsules. The particle diameter of measuring capsule is 3mm (see Figure 5 -a). Take 10 water-packed capsules and weigh them, the mass is 0.354g, squeeze the water-packed capsules, dry and weigh 0.10...

Embodiment 2

[0098] Weigh 12 g of polyvinyl alcohol and dissolve it in 400 mL of deionized water at 80° C. to obtain a polyvinyl alcohol solution.

[0099] Weigh 3.6g of polylactic acid particles and dissolve in 30mL of dichloromethane to obtain a polylactic acid solution.

[0100] Put the polylactic acid solution and deionized water into syringes respectively, place them on two syringe pumps, connect the coaxial double-needle reactor, the flow rate of the two syringe pumps is the same as Example 1, drop them into the polyvinyl alcohol solution, and stir mechanically After 6 hours, the stirring speed was 250r / min, the product was filtered under reduced pressure, washed with deionized water, and then collected to obtain water-in-polylactic acid capsules. The particle diameter that records water-packed capsule is 3.2mm (see Figure 5 -b). The average water content of the capsules is 25.1mg (water accounts for 73wt% of the weight of the capsules). The water-containing capsules are added to ...

Embodiment 3

[0102] Weigh 12 g of polyvinyl alcohol and dissolve it in 400 mL of deionized water at 80° C. to obtain a polyvinyl alcohol solution.

[0103]Weigh 4.5g of polylactic acid particles and dissolve in 30mL of dichloromethane to obtain a polylactic acid solution.

[0104] Put the polylactic acid solution and deionized water into syringes respectively, place them on two syringe pumps, connect the coaxial double-needle reactor, the flow rate of the two syringe pumps is the same as Example 1, drop them into the polyvinyl alcohol solution, and stir mechanically After 6 hours, the stirring speed was 250r / min, the product was filtered under reduced pressure, washed with deionized water, and then collected to obtain water-in-polylactic acid capsules. The particle diameter of water-packed capsule is about 4mm (see Figure 5 -c), the average capsule water content is 35.3mg (water accounts for 63% of the capsule weight). Add the water-encapsulated capsules to the cigarette filter in the s...

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Abstract

The invention relates to the field of cigarette materials, in particular to a one-step forming method of a water-packaging capsule with a core-shell structure. The one-step forming method comprises the steps that a hydrophilic aqueous solution is used as a core material solution; a hydrophobic organic solvent in which a high molecular polymer is dissolved is used as a wall material solution; the core material solution is added dropwise through an inner hole of a coaxial needle and the wall material solution is added dropwise through inner and outer hole gaps of an electrospinning coaxial needle (referred to as a coaxial needle in the invention) together to a coagulating liquid, and solid-liquid separation, washing and drying are performed after stirring, so that the water-packaging capsuleis obtained. In addition, the invention further provides the water-packaging capsule prepared by the preparation method and application of the water-packaging capsule. Compared with conventional water-packaging capsules, the one-step forming method has simple steps, avoids the use of waxy materials, and realizes a coating effect without multi-layer wrapping; and the one-step forming method changes the addition form of additives, can realize the release of additive components in the cigarette utilization process, and is conducive to ensuring the efficacy of the additives.

Description

technical field [0001] The invention relates to the field of tobacco industry, in particular to a one-step forming method of water-infused capsules. Background technique [0002] The moisture content in the smoke has an important impact on the sensory quality of cigarettes. Increasing the moisture content of cigarette smoke can improve the comfort of cigarettes and reduce dryness and irritation. In recent years, attention has been paid to the technology of improving the flavor of cigarettes and reducing the harmfulness of cigarettes by adding capsules to cigarette filters. The capsules added to the filter burst to release the core material due to changes in pressure, shear, temperature or pH when the cigarette is smoked. [0003] For example, U.S. Patent No. 4,889,144 discloses a pressure-sensitive capsule that is added to a filter tip and uses natural polysaccharides such as calcium alginate as wall materials to embed flavor substances. However, this capsule with natural p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/06
CPCA24D3/061
Inventor 谢国勇樊娜袁鼎浩银董红尹双凤
Owner CHINA TOBACCO HUNAN INDAL CORP
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