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Cigarette filter containing ultralong TiO2 aquo-complex nanotube

A filter tip and hydrate 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 be intertwined and mixed with cellulose acetate, and the effect of solving the problem of insignificant degradation of ammonia and other components and strong ability to adsorb ammonia

Inactive Publication Date: 2013-12-25
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
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  • Cigarette filter containing ultralong TiO2 aquo-complex nanotube

Examples

Experimental program
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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, and 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 ...

Embodiment 2

[0049] The preparation of embodiment 2 cigarette filter tip

[0050] 1. Raw material

[0051] Processing raw materials: cellulose acetate, 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 The hydrate nanotube and the acetate fiber are evenly mixed to prepare the adsorption filter layer of the cigarette filter tip. Among them, TiO in the adsorption filter layer 2 The mass of the hydrate nanotubes is 0.01% of the mass of the total acetate fiber of the cigarette filter.

[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 The adsorption filter layer of hydrate nanotubes fills the entire cigarette filter (such as image 3 shown).

[0056] Method Two:

[005...

Embodiment 3

[0065] Example 3 Detection of Filter Adsorption Filtration Effect

[0066] 1. Experimental method

[0067] Prepare filter according to the method for embodiment 2, contain TiO 2 The filter layer of hydrate nanotubes is located at the front end of the filter rod, and the specifications of the prepared filter tip are as follows: a. Adsorb TiO in the filter layer 2 The mass of hydrate nanotubes is 1% of the total mass of cellulose acetate in the cigarette filter; b. TiO in the adsorption filter layer 2 The quality of hydrate nanotubes is 5% of the total acetate fiber quality of cigarette filter; c. TiO in the adsorption filter layer 2 The mass of the hydrate nanotubes is 10% of the mass of the total acetate fiber of the cigarette filter. Cigarettes are prepared by using the filter tip to obtain a cigarette with an adsorption filter layer in the filter tip.

[0068] Control: As a control, cigarettes were prepared using a filter tip composed entirely of cellulose acetate.

[0...

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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. The cigarette filter contains an adsorption filtration layer, wherein the adsorption filtration layer is formed by the TiO2 aquo-complex nanotube and cellulose acetate fiber; the content of the TiO2 aquo-complex nanotube in the adsorption filtration layer is not less than 0.01 wt% of the total mass of the cellulose acetate fiber of the cigarette filter; the length of the TiO2 aquo-complex nanotube is larger than or equal to 1 micrometer. The TiO2 aquo-complex nanotube has very strong capacity on adsorbing ammonia, and meanwhile, the ultralong TiO2 aquo-complex nanotube can be firmly interweaved and mixed with the cellulose acetate fiber, 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 an ultra-long TiO 2 Hydrate nanotube cigarette filter and its preparation and use. 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 filter tip for filtering toxins a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/02A24D3/10
Inventor 刘剑聂长春叶冲赵杨姬厚伟韩伟毛寒冰万强
Owner CHINA TOBACCO GUIZHOU IND
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