Cigarette filter containing ultralong TiO2 aquo-complex nanotube, TiO2 nanometer powder and activated carbon fiber

An activated carbon fiber and filter technology, which is applied in the fields of e-liquid filter, tobacco, food science, etc., can solve the problems such as being unsuitable for the large-scale production of cigarette filters, not easy to interweave and mix acetate fibers, and the degradation of ammonia and other components is not obvious. The adsorbent is not easy to interweave and mix with cellulose acetate, which solves the effect of insignificant degradation of various components and strong ammonia adsorption capacity

Active Publication Date: 2015-03-25
CHINA TOBACCO GUIZHOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned prior art has the following deficiencies: (1) The degradation of ammonia and other components in the mainstream smoke of cigarettes is not obvious; (2) The additives are fine particles, which are not easy to interweave and mix with cellulose acetate, and are not suitable for cigarette filters. mass production

Method used

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  • Cigarette filter containing ultralong TiO2 aquo-complex nanotube, TiO2 nanometer powder and activated carbon fiber
  • Cigarette filter containing ultralong TiO2 aquo-complex nanotube, TiO2 nanometer powder and activated carbon fiber
  • Cigarette filter containing ultralong TiO2 aquo-complex nanotube, TiO2 nanometer powder and activated carbon fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1TiO 2 Preparation of Hydrate Nanotubes

[0045] 1. Preparation method:

[0046] Method 1: Add 2 g of commercial grade TiO 2 (P25) was dissolved in 75ml of 10M NaOH solution, the mixture was transferred into a 100mL autoclave and placed in an oil bath, and heated in water at a temperature range of 150°C and a speed of 10r / min for 24h. After the reaction, the white precipitate obtained was washed with distilled water until neutral, then soaked in acid solution for 24 hours, then filtered and washed until neutral, and dried at 60°C to finally obtain TiO 2 Hydrate nanotubes.

[0047] Method 2: Add 0.1 g of commercial grade TiO 2 (P25) was dissolved in 75ml of 8M NaOH solution, and the mixture was transferred into a 100mL autoclave and placed in an oil bath, and hydrothermally heated at a temperature range of 200°C and a speed of 5r / min for 18h. After the reaction, the white precipitate obtained was washed with distilled water until neutral, then soaked in acid...

Embodiment 2

[0051] The preparation of embodiment 2 cigarette filter tip

[0052] 1. Raw material

[0053] Processing raw material: TiO 2 Nano powder, purchased from ISHIHARA SANGYO KAISYA, LTD.; Acetate fiber, purchased from Guizhou China Tobacco Industry Co., Ltd.; activated carbon fiber, purchased from Nantong Xintong Activated Carbon Fiber Co., Ltd., its specific surface area is 1200m 2 / g.

[0054] 2. Preparation of Cigarette Filters

[0055] method one:

[0056] The TiO prepared by embodiment 1 2 Hydrate nanotubes and acetate fibers are interwoven and mixed, and then doped with activated carbon fibers and TiO 2 Nano-powder, interweaving and mixing evenly, to prepare the adsorption filter layer of cigarette filter, in which TiO 2 The mass of hydrate nanotubes is 10% of the total mass of acetate fibers in cigarette filters, TiO 2 The mass of nano powder is TiO 2 5% of the mass of hydrate nanotubes, the mass of activated carbon fibers is TiO 2 5% of the mass of hydrate nanotub...

Embodiment 3

[0064] Example 3 Detection of Filter Adsorption Filtration Effect

[0065] 1. Experimental method

[0066] Prepare filter tip according to embodiment 2, adsorption filter layer is positioned at filter stick front end, wherein TiO in the adsorption filter layer 2 The mass of hydrate nanotubes is 10% of the total acetate mass, TiO 2 The mass of nano powder is TiO 2 5% of the mass of hydrate nanotubes, and the mass of activated carbon fibers is TiO 2 5% of the mass of hydrate nanotubes; cigarettes are prepared with the above-mentioned filter tip.

[0067] Control: As a control, cigarettes were prepared using a filter tip composed entirely of cellulose acetate.

[0068] Detection method: reference to the detection method of filter adsorption and filtration effect: YC / T377-2010 Determination of ammonia in mainstream smoke of cigarettes; 2009 Determination of carbon monoxide in the gas phase of cigarette smoke.

[0069] 2. Experimental results

[0070] The test results of red...

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Abstract

The invention relates to the field of cigarette filters, in particular to a cigarette filter containing an ultralong TiO2 aquo-complex nanotube, TiO2 nanometer powder and activated carbon fiber. The cigarette filter contains an adsorption filtration layer, wherein the adsorption filtration layer is formed by cellulose acetate fiber, the TiO2 aquo-complex nanotub, the TiO2 nanometer powder and the activated carbon fiber. According to the cigarette filter containing the ultralong TiO2 aquo-complex nanotube, the TiO2 nanometer powder and the activated carbon fiber, the strong capacity of the TiO2 aquo-complex nanotub and the TiO2 nanometer powder on adsorbing ammonia, and the adsorption of the activated carbon fiber on tar and CO are creatively utilized, and the ultralong TiO2 aquo-complex nanotube and the activated carbon fiber can be firmly interweaved and mixed with the cellulose acetate fiber, so that the defects that in the prior art, the degradation of various components in main stream smoke of a cigarette is not obvious, and adsorbing agent is not easily interweaved and mixed with the cellulose acetate fiber are solved.

Description

technical field [0001] The invention relates to the field of cigarette filters, in particular to an ultra-long TiO 2 Hydrate nanotubes, TiO 2 Cigarette filter of nanopowder and activated carbon fiber and use thereof. Background technique [0002] Publication number CN1302570A discloses a novel detoxification cigarette filter and its production method. Its characteristic is that on the basis of the filter layer of the existing filter tip, a layer of adsorption and absorption layer mixed with activated carbon and calcium hydroxide is added, so that the adsorption and absorption layer is close to the filter layer. [0003] Publication No. CN1383764A discloses a method for preparing cigarettes containing loess clay minerals and the cigarette products produced thereby. Its characteristic is to prepare a homogeneous suspension of loess, apply the suspension to cigarette filters, fillers or packages, and then dry it. [0004] Publication No. CN101637307A discloses a cigarette f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/16A24D1/04A24D3/06
Inventor 叶冲刘剑赵杨白兴曾池韩伟万强金晶邹西梅
Owner CHINA TOBACCO GUIZHOU IND
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