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Cigarette tow with phase change heat absorption function and preparation method of cigarette tow

A phase change and functional technology, applied in rayon manufacturing, hollow filament manufacturing, fire-retardant and flame-retardant filament manufacturing, etc., can solve the problem of unsatisfactory cooling effect of flue gas, achieve large latent heat of phase change, and improve contact exchange. Specific surface, the effect of reducing harmful substances

Inactive Publication Date: 2019-05-17
云南中成道和新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still some problems in the technical means of the cooling section of mainstream brands, and the cooling effect of flue gas is not ideal. The development of new cooling section materials with high-efficiency cooling effect and environmental friendliness, and the existing green industrial chain has become the commanding height of the current industry. Problems that need to be solved urgently

Method used

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  • Cigarette tow with phase change heat absorption function and preparation method of cigarette tow
  • Cigarette tow with phase change heat absorption function and preparation method of cigarette tow
  • Cigarette tow with phase change heat absorption function and preparation method of cigarette tow

Examples

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Effect test

Embodiment 1

[0030] A method for preparing a tobacco tow with a phase-change endothermic function, specifically comprising the following steps:

[0031] (1) Dry the food fiber grade polylactic acid at 70°C for 4h, add microcapsules containing phase change agent after drying the slices, melt in the screw extruder, set the temperature of the screw feeding section to 180°C and the temperature of the compression section to 202 ℃, the temperature of the metering section is 197 ℃; the microcapsule core is prepared by filling the zeolite with phase change paraffin; the capsule wall is prepared by polyacrylic resin;

[0032] (2) spinning the melted fiber-grade polylactic acid at a spinning temperature of 190° C., passing through a spinneret with a special-shaped hollow and multiple shapes, wherein the shape of the spinneret holes in the spinneret is a combination of Y-type and C-type, Make the molten polylactic acid flow through the hollow special-shaped hollow spinneret orifice and spray; and coo...

Embodiment 2

[0037] A method for preparing a tobacco tow with a phase-change endothermic function, specifically comprising the following steps:

[0038] (1) Dry the food fiber grade polylactic acid at 85°C for 3 hours, add microcapsules containing phase change agent after drying the slices, and melt them in the screw extruder. Set the temperature of the screw feeding section to 185°C and the temperature of the compression section to 205°C ℃, the temperature of the metering section is 200 ℃; the microcapsule core is prepared by filling the activated carbon with polyethylene glycol; the capsule wall is prepared by polyurethane resin;

[0039] (2) Spinning the melted fiber-grade polylactic acid at a spinning temperature of 210° C. through a spinneret with a special-shaped hollow and multiple shapes, wherein the shape of the spinneret holes in the spinneret is a combination of double arcs and shapes. , so that the molten polylactic acid flows through the hollow special-shaped hollow spinneret ...

Embodiment 3

[0044] A method for preparing a tobacco tow with a phase-change endothermic function, specifically comprising the following steps:

[0045] (1) Dry the food fiber grade polylactic acid at 100 °C for 2 hours, add microcapsules containing phase change agent after drying the slices, and melt them in the screw extruder. Set the temperature of the screw feeding section to 190 °C and the temperature of the compression section to 208 °C ℃, the temperature of the metering section is 203 ℃; the microcapsule core is prepared by filling fatty acid in silicate; the capsule wall is prepared by polyester resin;

[0046] (2) Spinning the melted fiber-grade polylactic acid at a spinning temperature of 220° C., passing through a spinneret with a special-shaped hollow and multiple shapes, wherein the shape of the spinneret holes in the spinneret is a combination of Y-shaped and double-arc shapes. , so that the molten polylactic acid flows through the hollow special-shaped hollow spinneret and s...

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Abstract

The invention discloses a cigarette tow with a phase change heat absorption function. The tow is obtained as follows: microcapsules containing a phase change agent are added to a food fiber-grade polylactic acid material in a melt spinning process, and drying, melting, spinning, cooling, oiling, drafting, crimping and drying setting processes are performed. During smoking of a cigarette with a filter tip processed from fiber prepared with the preparation method, polylactic aid hollow fiber has high adsorption / absorption capacity for polar and non-polar smoke component gases; meanwhile, the temperature of smoke passing through the filter tip is increased, the polylactic acid material and the phase change material in the microcapsules absorb heat during phase state conversion, the smoke temperature is decreased, a harm reduction effect is realized, the prepared cigarette with the polylactic acid filter tip has unique smell absorption style, and harmful substances in smoke can be effectively filtered out.

Description

technical field [0001] The invention relates to the technical field of filter tip materials for cigarettes, in particular to a cigarette tow with a phase-change endothermic function and a preparation method thereof. Background technique [0002] Cigarette smoke passes through the heat exchange and dissipation of tobacco rods and filter rods, and when it is finally inhaled into the mouth of the consumer, the high temperature of the smoke will bring about smoke irritation and burning sensation, reducing the comfort of cigarette smoking. The working temperature of heat-not-burn cigarettes is in the range of 250-350 degrees, which can make the tobacco leaves in the special cartridges heated just enough to emit aroma and tobacco flavor, and when it does not burn below 350 degrees, it avoids the traditional harmful substances in smoke. However, in heat-not-burn cigarettes, the cooling section is of great significance for reducing the temperature of the smoke and improving the tas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/10D01F1/08D01F1/07D01D5/253A24D3/06A24D3/18
Inventor 王惟正王惟鼎
Owner 云南中成道和新材料科技有限公司
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