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Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof

A linear density, lactic acid cigarette technology, applied in the field of preparation of cigarette filter tow, can solve the problem of not mentioning the preparation method of polylactic acid tow, etc., to improve biodegradability, solve tow adhesion, and reduce dosage. Effect

Active Publication Date: 2012-10-24
ZHENGZHOU TOBACCO RES INST OF CNTC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But do not mention the preparation method of this polylactic acid tow in this patent

Method used

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  • Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof
  • Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof
  • Filament bundle for polylactic acid cigarette with low filament bundle linear density, preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Choose a kind of polylactic acid masterbatch and titanium dioxide whitening masterbatch with a left-handed body of 97%, a melt index of 3g / 10min, and a melting point of 170°C, and dry them to a moisture content of less than 200ppm. The above-mentioned dried raw materials were melt-mixed and filtered at 210°C, melt-spun at 215°C, the number of spinneret holes was 1000, and the spinneret holes were Y-shaped. The newly spun tow is cooled by an air cooling device, and oil is coated on the surface of the tow to eliminate static electricity. At a winding speed of 500m / min, the tow is temporarily stored in the silk barrel after being wound. The tow was drawn in a water bath at 70° C. at a draw ratio of 2.5. The drawn tow was crimped on a crimping machine with narrow crimping wheels, the crimping temperature was 90°C, and the crimping pressure was 20N. The crimped tow was dried and shaped to obtain a polylactic acid tow with a monofilament linear density of 3.67 dtex and a to...

Embodiment 2

[0026] Choose a kind of polylactic acid masterbatch and titanium dioxide whitening masterbatch with a left-handed body of 97%, a melt index of 3g / 10min, and a melting point of 170°C, and dry them to a moisture content of less than 200ppm. The above dried raw materials were melt-mixed and filtered at 210°C, melt-spun at 215°C, the number of holes in the spinneret was 2000, and the spinneret holes were Y-shaped. The newly spun tow is cooled by an air cooling device, and oil is coated on the surface of the tow to eliminate static electricity. At a winding speed of 500m / min, the tow is temporarily stored in the silk barrel after being wound. The tow was drawn in a water bath at 70° C. at a draw ratio of 2.5. The drawn tow was crimped on a crimping machine with narrow crimping wheels, the crimping temperature was 90°C, and the crimping pressure was 20N. The crimped tow was dried and shaped to obtain a polylactic acid tow with a monofilament linear density of 3.89 dtex and a tow l...

Embodiment 3

[0029]Choose a polylactic acid masterbatch with a levorotatory content of 98%, a melt index of 3.1g / 10min, and a melting point of 175°C, and a titanium dioxide whitening masterbatch, which is dried to a moisture content of less than 200ppm. The above-mentioned dried raw materials were melt-mixed and filtered at 210°C, melt-spun at 215°C, the number of spinneret holes was 1000, and the spinneret holes were Y-shaped. The newly spun tow is cooled by an air cooling device, and oil is coated on the surface of the tow to eliminate static electricity. At a winding speed of 500m / min, the tow is temporarily stored in the silk barrel after being wound. The tow was drawn in a water bath at 70° C. at a draw ratio of 2.5. The drawn tow was crimped on a crimping machine with narrow crimping wheels, the crimping temperature was 90°C, and the crimping pressure was 20N. The crimped tow was dried and shaped to obtain a polylactic acid tow with a monofilament linear density of 3.89 dtex and a ...

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Abstract

The invention relates to a filament bundle for a polylactic acid cigarette with a low filament bundle linear density, a preparation method thereof and an application thereof. The filament bundle for the polylactic acid cigarette is prepared through mixing polylactic acid master batches with titanium dioxide brightening master batches, and the filament bundle linear density, the monofilament linear density and the crispation number of the filament bundle are 0.4-1.5ktex, 2-6dtex and 20-30 / 25mm respectively. The filament bundle for the polylactic acid cigarette with a low filament bundle linear density can be mixed with a corresponding filament bundle (an acetate fiber filament bundle) for a cellulose diacetate cigarette to form a filter rod, so the application amount of the acetate fiber filament bundle is reduced, the insufficient situation of the filament bundle for the acetate fiber cigarette is alleviated, the cost is reduced, and the suction taste of the cigarette is maintained without a too large change. In addition, the pollution to the environment is reduced because polylactic acid has a biodegradable characteristic.

Description

technical field [0001] The invention belongs to the preparation technology of cigarette filter tip tow, in particular to a polylactic acid tow with low tow linear density and its preparation method and application. Background technique [0002] At present, there are mainly two types of cigarette filters on the market: cellulose diacetate (cellulose acetate) filters and polypropylene filters. Acetate filter is a filter with excellent performance and widely used, with a market share of about 90%. Its production raw material wood pulp comes from high-quality wood. my country's forest resources are limited, and raw materials cannot be self-sufficient. At present, it mainly relies on imports, and the cost is relatively high. In addition, the solution spinning method used in the spinning process of acetate fiber requires the use of a large amount of solvent, which not only increases the cost, but also inevitably causes pollution to the environment. At the same time, the biodegra...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01D5/08D01D5/253D02G3/00D02G1/14A24D3/02A24D3/08
Inventor 刘惠民赵献忠聂聪何映鸣杨松包旭东王晓辉王涛
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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