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A kind of preparation method and application of functionalized tow for filter rod

A functionalized, tow technology, applied in spinning solution preparation, filament/thread forming, feeding solution to spinneret, etc., can solve problems such as reduced release, achieve good physical adsorption capacity and simple preparation method. Effect

Active Publication Date: 2016-08-24
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to reduce the release of tar and harmful components in cigarettes, while maintaining the taste of cigarettes so that consumers can get physiological satisfaction is the biggest challenge for cigarette design. At present, ordinary filters cannot meet the requirements in this regard

Method used

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  • A kind of preparation method and application of functionalized tow for filter rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The polyvinyl butyral (PVB) solution was spun separately. Polyvinyl butyral (PVB) was dissolved in ethanol to prepare a 10% (W / W) solution, which was placed in a storage tank and fed to 12 electrospinning nozzles by a micropump at a speed of 5 mL / h per pump. Supply the material liquid, the electrospinning voltage is 25KV, the distance between the nozzle and the paper base is 15cm, each group of electrospinning nozzles has 4 nozzles, and the continuous traveling acetate tow (speed 50m / min) is used as the substrate to receive online Polyvinyl butyral nanofibers, spray a layer of white nanofibers with a diameter of about 500nm on the cellulose acetate tow, and the mass ratio of the sprayed nanofiber film to the tow is 1:100. After online spraying and modification The acetate tow enters the plasticizer applicator and then undergoes filter rod forming. One end of the electrospinning chamber is continuously fed with air, and the other end discharges the air mixed with solven...

Embodiment 2

[0027] The cellulose acetate solution was spun separately. Dissolve cellulose acetate in acetone to prepare a 6% (V / V) solution, place it in a storage tank, and supply the material liquid to 8 electrospinning nozzles through a micropump at a speed of 3 mL / h for each pump. The spinning voltage is 20KV, the distance between the nozzle and the paper base is 18cm, and each group of electrospinning nozzles has 4 nozzles. On-line receiving cellulose acetate nanofibers based on the continuously advancing propylene fiber tow (speed 100m / min), spraying a layer of white nanofibers with a diameter of about 900nm on the propylene fiber tow, the sprayed nanofiber film and The mass ratio of tow is 1:300. The modified propylene fiber tow after online spraying enters the plasticizer application device and then performs filter rod molding. One end of the electrospinning room is continuously fed with air, and the other end discharges the air mixed with solvent from the electrospinning room fo...

Embodiment 3

[0029]Mixed spinning of polyethyleneimine and gelatin. Polyethyleneimine was dissolved in ethanol to prepare a 7% (V / V) solution, gelatin was dissolved in trifluoroethanol to prepare a 10% (V / V) solution, and the two solutions were mixed in a mass ratio of 60:40, Placed in the storage tank, the feed liquid is supplied to 8 electrospinning nozzles at a speed of 3mL / h through a micropump, the electrospinning voltage is 25KV, and the distance between the nozzle and the paper base is 15cm. Spin nozzle is 4 nozzles. The nanofibers of polyethylenimine and gelatin are received on-line with the continuously advancing propylene fiber tow (speed 80m / min), and a layer of white nanofibers with a diameter of about 3 μm is sprayed on the propylene fiber tow. The mass ratio of nanofiber membrane to tow is 1:200. The modified propylene fiber tow after online spraying enters the plasticizer application device and then performs filter rod molding. One end of the electrospinning chamber is co...

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Abstract

The invention discloses a method for preparing a functionalized tow for a filter rod and its application. The method for preparing the functionalized tow is to dissolve a polymer raw material in a solvent to form a spinning solution, and then place it in a liquid storage device; After the electrospinning voltage, the spinning liquid in the liquid storage device is continuously supplied to the spinneret connected to the liquid storage device through a micropump; the spinning liquid is sprayed to the surface of the continuously moving tow through the spinneret to form a nanofiber film , to obtain the functionalized tow; the preparation method is simple and can be continuously industrialized, and the prepared functionalized tow is used in the preparation of effective reduction of tar, nitrosamines and HCN in the mainstream smoke of cigarettes without affecting cigarette smoking Quality cigarette filter rods.

Description

technical field [0001] The invention relates to a preparation method and an application of a functionalized tow for a filter rod, belonging to the field of tobacco filter material applications. Background technique [0002] As a bridge between the smoker and the mainstream smoke, the filter can not only filter out some harmful components in the smoke, but also attach the filter to the cigarette, which can effectively intercept the total particulate matter in the mainstream smoke of the cigarette, Reducing tar content and reducing the harm of smoke to human health and the environment are the most direct and intuitive means in cigarette tar reduction and harm reduction technology. At present, countries around the world are paying more and more attention to the development of cigarette filter rod materials and filter rod structures, and the use of functional filter rods will be the trend of reducing tar and harm in the tobacco industry in the future. Domestic tobacco companies...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D04H1/4382D01D5/00D01D1/06D01D1/02
Inventor 金勇谢兰英刘琦李克王诗太谭海峰范红梅
Owner CHINA TOBACCO HUNAN INDAL CORP
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