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Polymer multi-core fiber tube based filter and application thereof

A multi-core fiber and polymer technology, applied in applications, smoke oil filter elements, food science, etc., can solve problems such as difficult to achieve rapid cooling of smoke, limited contact area between materials and smoke, and small stacking density, so as to improve filtration The effect of contacting and exchanging the specific surface of the device with the flue gas, increasing the heat exchange rate, and reducing the instantaneous temperature

Inactive Publication Date: 2018-11-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is granular material or film material, the common problem is that the bulk density is small, the contact area between the material and the flue gas is limited, and it is difficult to achieve a rapid cooling effect on the flue gas

Method used

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  • Polymer multi-core fiber tube based filter and application thereof
  • Polymer multi-core fiber tube based filter and application thereof
  • Polymer multi-core fiber tube based filter and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a filter based on a polymer multi-core fiber tube is formed by wrapping a polypropylene multi-core fiber tube with cigarette paper to form a cylindrical rod with a length of 2 mm. The diameter of the polypropylene multi-core fiber tube is 7.8 mm, the inner diameter of the hole is 0.1 mm, and the volume of the hole accounts for 80% of the volume of the multi-core fiber tube.

[0035] The preparation steps of polypropylene multi-core fiber tube are:

[0036] (1) Putting polypropylene into a screw extruder, and continuously melting and extruding thermoplastic resin through a spinneret at 180°C;

[0037] (2) The primary multi-core fiber tube obtained above was gradually cooled, stretched 20 times, heat-set at 100° C. and cut to obtain a polypropylene multi-core fiber tube.

[0038] Among them, the spinneret (such as image 3As shown) the inner diameter of the hollow metal needles is 0.1mm, the distance between the centers of adjacent hollow met...

Embodiment 2

[0040] Such as figure 1 As shown, a filter based on a polymer multi-core fiber tube is wrapped with a polyethylene multi-core fiber tube by cigarette paper to form a cylindrical rod with a length of 4 mm. The diameter of the polyethylene multi-core fiber tube is 7.8mm, the inner diameter of the hole is 0.2mm, and the volume of the hole accounts for 76% of the volume of the multi-core fiber tube.

[0041] The preparation steps of polyethylene multi-core fiber tube are:

[0042] (1) Put polyethylene into the screw extruder, and continuously melt and extrude the thermoplastic resin through the spinneret at 120°C;

[0043] (2) The primary multi-core fiber tubes obtained above were gradually cooled, stretched 15 times, heat-set at 70° C. and cut to obtain polyethylene multi-core fiber tubes.

[0044] Among them, the spinneret (such as image 3 As shown) the inner diameter of the hollow metal needles is 0.2mm, the distance between the centers of adjacent hollow metal needles is 0...

Embodiment 3

[0046] Such as figure 1 As shown, a filter based on a polymer multi-core fiber tube is wrapped with a polylactic acid multi-core fiber tube by cigarette paper to form a cylindrical rod with a length of 6 mm. The diameter of the polylactic acid multi-core fiber tube is 7.7mm, the inner diameter of the hole is 0.3mm, and the volume of the hole accounts for 74% of the volume of the multi-core fiber tube.

[0047] The preparation steps of the polylactic acid multi-core fiber tube are:

[0048] (1) Put the polylactic acid into the screw extruder, and continuously melt and extrude the thermoplastic resin through the spinneret at 160°C;

[0049] (2) The primary multi-core fiber tubes obtained above were gradually cooled, stretched 10 times, heat-set at 90° C. and cut to obtain polylactic acid multi-core fiber tubes.

[0050] Among them, the spinneret (such as image 3 As shown) the inner diameter of the hollow metal needles is 0.3mm, the distance between the centers of adjacent ho...

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Abstract

The invention relates to the technical field of manufacturing of cigarette filter rods, and aims at providing a polymer multi-core fiber tube based filter and application therefore. The filter comprises a wrapping material and a polymer multi-core fiber tube, wherein the wrapping material closely wraps at least one uniform cylindrical rod which is formed through the polymer multi-core fiber tube;a plurality of thin and long pore channels which are axially arranged in parallel are densely distributed in the polymer multi-core fiber tube and form an air flowing channel; the polymer multi-core fiber tube is prepared through thermoplastic resin of which the glass transition temperature is less than 100 DEG C, the smelting point is less than 200 DEG C and the specific heat capacity is more than 1.5kJ.kg-1.K-1. The filter is applicable to cigarette products. With the adoption of the filter, the contact exchange specific surface of the filter and smoke can be extremely improved, so that theheat exchange rate is increased, and the transient temperature of high-temperature smoke can be rapidly decreased; the multi-core fiber tube is prepared through an one-time forming method, and the full-automatic production can be realized.

Description

technical field [0001] The invention belongs to the technical field of manufacturing tobacco filter rods, and in particular relates to a filter based on a polymer multi-core fiber tube and an application thereof. Background technique [0002] In recent years, new tobacco products such as electronic cigarettes and heat-not-burn tobacco products are rapidly emerging. Electronic cigarettes do not directly use tobacco in the form of shredded tobacco, but mainly atomize nicotine liquid derived from tobacco to form a gaseous substance. Heat-not-burn tobacco products use an external heat source to heat tobacco instead of lighting it to produce tobacco-flavored gas, and there are methods such as charcoal heating and electric heating. Novel tobacco has been hailed as a healthier alternative to traditional tobacco products, with relatively fewer harmful substances in the smoke. However, because the new type of tobacco adopts a closed heating method, and the cigarette sticks are rela...

Claims

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Application Information

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IPC IPC(8): A24D3/10A24D3/04
CPCA24D3/04A24D3/10
Inventor 黄小军黄赋张清程
Owner ZHEJIANG UNIV
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