Cigarette filter and preparation method thereof

A cigarette and filter technology, which is applied in the field of smoke oil filter material and its preparation, achieves the effects of changing the surface properties of fibers, low cost and improving effect

Inactive Publication Date: 2012-09-19
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency of current cigarette filter fibers including cellulose acetate fibers in absorbing and filtering carcinogenic substances in mainstream smoke of cigarettes, and to provide a method that c

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1. According to the bath ratio of 1:50, stir and boil 50 grams of clean cocoon shells vigorously with deionized water for 5 minutes, take out the fluffy cocoon shells and wring them out, and then boil them with vigorous stirring and deionized water for 30 minutes at the same bath ratio. Minutes later, after taking out the silk fiber, what was obtained was a sericin solution. Take out the silk fiber and boil it twice with a dilute alkali solution, then take it out and dry it to obtain the silk fibroin fiber;

[0017] 2. Put the sericin solution in an oven and bake it at 105°C until the volume is about 1000 ml, and the sericin content in the solution is measured to be about 0.85%;

[0018] 3. with CaCl 2 / H 2 O / CH 3 CH 2 The OH solution dissolves the silk fiber, obtains the silk fibroin solution after dialysis, and adjusts the content of the silk fibroin solution to 0.6% (W / V);

[0019] 4. Vertically immerse a cellulose acetate fiber filter tip with a length of 24...

Embodiment 2

[0024] 1. Prepare sericin solution according to the technical scheme of embodiment 1, be that the cellulose acetate fiber filter tip that length is 24 millimeters, weight is 130 milligrams is vertically immersed in the silk fibroin solution that concentration is 0.85%, and filter tip immersion depth is 10 mm, the soaking time is 15 minutes;

[0025] 2. Take out the filter tip, place it in an oven to dry at 60°C, and weigh it;

[0026] 3. The treated cellulose acetate fiber filter rods were replaced with the filter rods (24 mm in length and 130 mg in weight) of a certain brand of commercial cigarettes. Through simulated smoking, cyclohexane was used to collect mainstream smoke to make the potentially carcinogenic PAH substances dissolved in cyclohexane;

[0027] 4. After determination, the weight gain of sericin in each standard filter rod is 12.5 mg, and the filtration rate of polycyclic aromatic hydrocarbons measured by relative quantitative method is 80.52%, which is mu...

Embodiment 3

[0029] Take polypropylene short fibers with a fiber diameter of 10-20 microns, comb them into strips, put them into a glass tube with an inner diameter of 0.8 mm according to the specification of 120 mg polypropylene fiber / 24 mm, and immerse the glass tube completely in the mass For the silk fibroin solution with a concentration of 0.6%, take appropriate methods to make the silk fibroin solution enter between the inside of the glass tube and the polypropylene fiber, keep it for 30 minutes, take it out, put it in an oven, and dry it at 60°C to obtain a polypropylene filter rod . After weighing and calculating, it is confirmed that the amount of silk fibroin protein adsorbed by a 24 mm, 120 mg polypropylene fiber filter rod is about 9.5 mg.

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PUM

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Abstract

The invention relates to a tobacco tar filtering material, in particular to a cigarette filter and a preparation method thereof, wherein the fiber surface of a filter core is coated by a natural polymer substance. The preparation method comprises the steps of: based on cellulose diacetate fiber, cellulose triacetate fiber or polypropylene fiber as filter cores, coating fibroin on the filter core fiber surfaces in a film manner, or dispersedly adhering between the filter core fiber surfaces or fibers in a particle or porous film manner, wherein the mass percent of fibroin and filter core fiber is of 0.1-30 percent. For the cigarette filter, the fibroin contains a great amount of amino acid residue such as tyrosine, lysine and the like, with longer side chain, a great amount of active groups such as amino, hydroxyl and the like capable of reacting with aldehydes substances of formaldehyde and the like are distributed on molecular chains, so that effect of adsorbing tar, especially harmful substances such as polycyclic aromatic hydrocarbon and the like in main stream smoke of filter cigarette can be obviously improved.

Description

technical field [0001] The invention relates to a smoke oil filter material and a preparation method thereof, in particular to a filter element material coated with a natural polymer substance on the fiber surface and used for preparing a cigarette filter tip, which can effectively absorb and filter mainstream smoke of cigarettes. Background technique [0002] At present, the basic raw materials used to make cigarette filters in the domestic and foreign markets are mainly cellulose diacetate fibers, and there are also synthetic and natural materials such as cellulose triacetate fibers, polypropylene fibers, and chitosan. Cellulose acetate fiber has some advantages when used as cigarette filter fiber, for example: because the basic raw material is natural cellulose fiber, the source of raw materials for production is extensive; the mature spinning and crimping processing production process endows acetate fiber with suitable curl and Stiffness is conducive to making filter rod...

Claims

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Application Information

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IPC IPC(8): A24D3/10
Inventor 田保中
Owner SUZHOU UNIV
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