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Use of taking cellulose diacetate pulp as cigarette filter rod

A technology of cellulose diacetate and filter rod, which is applied in the direction of e-liquid filter, application, tobacco, etc., can solve the problems of low filtering effect of filter rod and cumbersome production process, and achieves good adsorption and filtering effect, high application value, and large pores. The effect of rate and specific surface area

Inactive Publication Date: 2019-09-20
上海洁晟环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a kind of cellulose diacetate pulp as the purposes of cigarette filter stick, to solve the problem that existing filter sticks made by processes such as spinning of cellulose diacetate have poor filtering effect. Low, cumbersome production process

Method used

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  • Use of taking cellulose diacetate pulp as cigarette filter rod
  • Use of taking cellulose diacetate pulp as cigarette filter rod
  • Use of taking cellulose diacetate pulp as cigarette filter rod

Examples

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Embodiment 1

[0045] In this embodiment, a kind of cellulose diacetate pulp is provided as a cigarette filter rod

[0046]Mix cellulose diacetate and PVDF at a solid content ratio of 20:1, and use dimethylacetamide as a solvent to prepare a slurry with a solid content of 10%. The temperature is 40°C, and it is transported to the Venturi at a pressure of 5 MPa. In the coagulation bath of the tube, the initial pulp is obtained, and then the throat of the Venturi tube is repeatedly rinsed 10 times with deionized water to obtain cellulose diacetate pulp, which is freeze-dried in the mold and used as a cigarette filter rod after demoulding . Among them, the scanning electron microscope image of cellulose diacetate pulp is shown in figure 1 As shown, the diameter of cellulose diacetate in traditional filter rods is generally about 25 μm, while the diameter of cellulose diacetate pulp fibers prepared by us is less than 1 μm, which increases the specific surface area for adsorption.

Embodiment 2

[0048] In this embodiment, a kind of cellulose diacetate pulp is provided as a cigarette filter rod

[0049] Mix cellulose diacetate and PS at a solid content ratio of 50:1, and mix dimethylacetamide and dimethyl sulfoxide at a volume ratio of 1:1 as a solvent to prepare a slurry with a solid content of 8%. The temperature is 80°C, and the pressure is 4 MPa, and it is transported to the coagulation bath of the Venturi tube to obtain the initial pulp, and then the throat of the Venturi tube is repeatedly washed 10 times with deionized water to obtain the cellulose diacetate pulp. After being freeze-dried in a mold, it can be used as a cigarette filter rod after demoulding.

Embodiment 3

[0051] In this embodiment, a kind of cellulose diacetate pulp is provided as a cigarette filter rod

[0052] Mix cellulose diacetate and PAN at a solid content ratio of 100:1, use dimethyl sulfoxide as a solvent, and prepare a slurry with a solid content of 12%, at a temperature of 30°C, and transport it to the Venturi at a pressure of 7 MPa In the coagulation bath of the tube, the initial pulp is obtained, and then the throat of the Venturi tube is repeatedly rinsed 8 times with deionized water to obtain cellulose diacetate pulp, which is freeze-dried in the mold and used as a cigarette filter rod after demoulding .

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Abstract

The invention provides a use of taking cellulose diacetate pulp as a cigarette filter rod. A new use of the cellulose diacetate pulp is deleloped. Compared with conventional fibers, the cellulose diacetate pulp has larger porosity and specific surface area, the adsorption and filtration effect is good, effective adsorption of harmful substances such as tar in cigarette smoke can be realized, and the cellulose diacetate pulp can be directly used as the cigarette filter rod in the cigarettes; and the application value is high, and the application prospect is good.

Description

technical field [0001] The invention belongs to the field of polymer materials and relates to the use of cellulose diacetate pulp as a cigarette filter rod. Background technique [0002] The smoke produced by burning cigarettes contains a large number of direct carcinogenic chemicals, among which tar has the highest content. Tar is the product of incomplete combustion of organic matter under anoxic conditions. Its main components are complex mixtures of many hydrocarbons and hydrocarbon oxides, sulfides and nitrogen compounds, including cadmium, arsenic, amines, nitrosamines and radioactive isotopes. And other carcinogens and phenols, fumaric acid and other cancer-promoting substances. [0003] Cigarette products currently on the market usually use cellulose diacetate as filter rod material to prevent smokers from directly inhaling a large amount of smoke. The raw material of cellulose diacetate is supplied through spinning, tow positioning, extraction, opening, application...

Claims

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Application Information

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IPC IPC(8): A24D3/10
CPCA24D3/10
Inventor 张秀芳蔡明飞陈越成
Owner 上海洁晟环保科技有限公司
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