Carbon-containing polypropylene filament tow for cigarette and preparation method thereof

A technique for polypropylene and polypropylene slicing, which is applied in the manufacture of single-component polypropylene rayon, single-component polyolefin rayon, and rayon, and can solve the problems of uneven distribution of activated carbon, difficulty in processing, and easy carbon particles. Pollution and other problems, to achieve the effect of not affecting the filter rod index, easy to control the amount of application, and good filtering effect

Active Publication Date: 2012-10-17
JIANGSU DAYA CIGARETTE FILTER MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used cellulose acetate filter and polypropylene fiber filter do not have a strong selective adsorption function for the components in the smoke, but some tobacco companies try to add cellulose acetate filter with strong adsorption function during the molding process of the cellulose acetate filter rod. Activated carbon, or through the method of compounding filter rods to achieve selective adsorption and stronger filtration, and some carbon-added cellulose acetate filter rods or various composite rods have entered the tobacco market, but the problem is that the cellulose acetate filter rods Adding activated carbon during the forming process will lead to difficulty in controlling the amount of carbon added, coarse activated carbon particles, uneven distribution of activated carbon in the filter, carbon particles are easy to pollute the filter rod incision and wear out the cutting blade, resulting in difficult processing and filter suction resistance , hardness, roundness, unstable appearance and other defects, and the molding of the composite rod will undoubtedly increase the production cost of the filter rod
In addition, adding activated carbon in the process of forming cellulose acetate sticks or adding activated carbon in the process of forming composite rods will cause charcoal smell in the smoke, which will affect the taste of consumers, and it is difficult to popularize and apply in flue-cured tobacco

Method used

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  • Carbon-containing polypropylene filament tow for cigarette and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 2.5% cooling masterbatch of auxiliary materials, 4.0% modified masterbatch, 5% functional masterbatch (effective carbon content in functional masterbatch is 20%, activated carbon particle size 0.3~1.0μm, activated carbon pore size 0.5~0.8nm, activated carbon specific surface area 600~1000m 2 / g) After drying, mix well. The melt index of the cooling masterbatch is 30-45g / 10min; the melt index of the modified masterbatch is 15-30g / 10min.

[0032] The feeding speed of the auxiliary material and the main material (the remaining polypropylene chips, wherein the melt index of the polypropylene chips is 20~30g / 10min) is controlled by a metering pump, and the speed ratio of the metering pump is controlled at 0.106±0.005. Out of the machine for melt spinning, the number of holes in the spinneret is 11000 holes, and the screw temperature is set as: 240±5℃ in the first zone, 255±5℃ in the second zone, 270±5℃ in the third zone, 270±5℃ in the fourth zone , the fifth zone is 270±5°...

Embodiment 2

[0037] 2.0% cooling masterbatch of auxiliary materials, 3.0% of modified masterbatch, 10% of functional masterbatch, fully mixed evenly after drying, control the feeding speed of auxiliary materials and main materials (residual polypropylene slices) through metering pump, metering pump The speed ratio is controlled at 0.106±0.005, melted and spun by the screw extruder, the number of holes in the spinneret is 11,000 holes, and the screw temperature is set as: 240±5℃ in the first zone, 255±5℃ in the second zone, and 255±5℃ in the third zone. 270±5℃, 270±5℃ in the fourth zone, 270±5℃ in the fifth zone, 270±5℃ in the sixth zone, 270±5℃ in the seventh zone, the pressure after the melt filtration is controlled at 8.5±0.5MPa, and the filter temperature is set to : Zone 1 265±5℃, zone 2 265±5℃, pipeline temperature: 265±5℃, box temperature: 265±5℃, box biphenyl pressure: <0.15MPa, ring air temperature: 22±3℃ , Spinning chamber ambient temperature: 15~35°C, tanker speed: 14.5±0.5m / min,...

Embodiment 3

[0043] 2.0% cooling masterbatch of auxiliary materials, 2.5% of modified masterbatch, 15% of functional masterbatch are fully mixed after drying, and the feeding speed of auxiliary materials and main materials (residual polypropylene slices) is controlled by metering pump, and the speed of metering pump is The ratio is controlled to be 0.106±0.005, melt spinning through the screw extruder, the number of holes in the spinneret is 11000 holes, the screw temperature is set as: 240±5°C in the first zone, 255±5°C in the second zone, 270 in the third zone ±5°C, 270±5°C in the fourth zone, 270±5°C in the fifth zone, 270±5°C in the sixth zone, 270±5°C in the seventh zone, the pressure after the melt filtration is controlled at 8.5±0.5MPa, and the filter temperature is set as: Zone 1: 265±5°C, Zone 2: 265±5°C, pipeline temperature: 265±5°C, box temperature: 265±5°C, box biphenyl pressure: <0.15MPa, ring air temperature: 22±3°C, Spinning chamber ambient temperature: 15~25°C, tanker spee...

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Abstract

The invention discloses a carbon-containing polypropylene filament tow for a cigarette and a preparation method thereof. The carbon-containing polypropylene filament tow for a cigarette is prepared by uniformly blending polypropylene slices and activated carbon functional master batches and carrying out melt spinning of the mixture. Concretely, the preparation method comprises the following steps of uniformly blending activated carbon functional master batches having carbon content of 10 to 40%, cooling master batches and modified master batches, blending the mixed master batches and polypropylene slices with control of a ratio of the master batches to the polypropylene slices as main materials in an auto-weighing way, carrying out melt spinning by a screw extruder, and orderly carrying out oiling, drafting, water washing, curling and drying to obtain the carbon-containing polypropylene filament tow for a cigarette, wherein particle sizes of activated carbon of the activated carbon functional master batches are in a range of 0.3 to 2.0 microns; aperture sizes are in a range of 0.5 to 3 nanometers; and a specific surface area is in a range of 600 to 1500 m<2>/g. The carbon-containing polypropylene filament tow for a cigarette can be spun directly by one-step method-based equipment for spinning a polypropylene filament tow for a cigarette, has strong operability, contains uniformly distributed activated carbon, reduces falling of activated carbon, allows carbon content adjustment, and has a low production cost and all indexes satisfying industry requirements and national standards.

Description

technical field [0001] The invention relates to a cigarette filter tip material and a preparation method thereof, in particular to a carbon-containing polypropylene tow for cigarettes and a preparation method thereof. Background technique [0002] In recent years, due to the adjustment of the structure of cigarette products by the State Tobacco, especially the improvement of the two requirements for cigarettes, "coke reduction, harm reduction, and green environmental protection", the tobacco industry has had to work hard on tobacco leaf formula and filter functions to achieve "coke reduction and reduction." Harmless, green and environmental protection" requirements. Since part of the particle and gas components of the smoke itself exist in the tobacco leaves or are produced during the combustion process, developing new filter materials and enhancing filter functions is one of the ways to meet the requirements of "coke reduction, harm reduction, and environmental protection"....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01D5/08A24D3/08
CPCD01F1/10A24D3/163A24D3/08D01F6/06D01D5/08D01F6/46
Inventor 朱网云范忠辉荆华丁伟郭建中赵义仁谈敏
Owner JIANGSU DAYA CIGARETTE FILTER MATERIAL CO LTD
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