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A cigarette filter containing ultra-long tio2 hydrate nanotubes and tio2 nanopowder

A filter and hydrate technology, applied in nanotechnology, smoke oil filter, tobacco and other directions, can solve the problems of not easy to mix and mix acetate fibers, obvious degradation of ammonia and other components, not suitable for large-scale production of cigarette filters, etc. Effect of Ammonia Adsorption Ability

Active Publication Date: 2015-08-19
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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  • A cigarette filter containing ultra-long tio2 hydrate nanotubes and tio2 nanopowder
  • A cigarette filter containing ultra-long tio2 hydrate nanotubes and tio2 nanopowder
  • A cigarette filter containing ultra-long tio2 hydrate nanotubes and tio2 nanopowder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1TiO 2 Preparation of Hydrate Nanotubes

[0043] 1. Preparation method:

[0044] 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.

[0045] 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

[0049] The preparation of embodiment 2 cigarette filter tip

[0050] 1. Raw material

[0051] Processing raw material: TiO 2 Nano powder was purchased from ISHIHARA SANGYO KAISYA, LTD.; cellulose acetate was purchased from Guizhou China Tobacco Industry Co., Ltd.

[0052] 2. Preparation of Cigarette Filters

[0053] method one:

[0054] The TiO prepared by embodiment 1 2 Hydrate nanotubes, TiO 2 Nano powder and cellulose acetate are mixed 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.

[0055] The adsorption filter layer in the previous step is used to prepare a filter rod through the industrialized molding step of the filter rod, and then cut it to obtain a cigarette filter tip. In the method of the present invention, containing TiO 2 Hydrate nanotubes and TiO 2 ...

Embodiment 3

[0062] Example 3 Detection of Filter Adsorption Filtration Effect

[0063] 1. Experimental method

[0064] Experimental object: filter tip is prepared according to Example 2, the adsorption filter layer is located at the front end of the filter rod, wherein the TiO in the adsorption filter layer 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. Cigarettes were prepared using the above filters.

[0065] Control: As a control, cigarettes were prepared using a filter tip composed entirely of cellulose acetate.

[0066] Detection method: For the detection method of filter adsorption and filtration effect, refer to: YC / T377-2010 Determination of ammonia in mainstream smoke of cigarettes.

[0067] 2. Experimental results

[0068] The test results of the cigarettes containing the adsorption filter layer in the filter tips made in the previous step in reduci...

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Abstract

The invention relates to the field of cigarette filters, in particular to a cigarette filter containing a TiO2 aquo-complex nanotube and TiO2 nanometer powder. The cigarette filter contains an adsorption filtration layer, wherein the adsorption filtration layer is formed by cellulose acetate fiber, the TiO2 aquo-complex nanotub, and the TiO2 nanometer powder. According to the cigarette filter containing the ultralong TiO2 aquo-complex nanotube and the TiO2 nanometer powder, the strong capacity of the TiO2 aquo-complex nanotub and the TiO2 nanometer powder on adsorbing ammonia is creatively utilized, the ultralong TiO2 aquo-complex nanotube can be firmly interweaved and mixed with the cellulose acetate fiber, and the TiO2 nanometer powder is filled in the ultralong TiO2 aquo-complex nanotube, so that the defects that in the prior art, the degradation of ammonia and other 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 a filter containing ultra-long TiO 2 Hydrate nanotubes and TiO 2 Nano powder cigarette filter and its application. 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 fiber ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/10A24D3/16A24D3/04B82Y40/00
Inventor 刘剑聂长春惠建权黄正虹冯勇曾池毛寒冰满杰
Owner CHINA TOBACCO GUIZHOU IND
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