WO2012100639A1

WO2012100639A1 - Cigarette composite filter material and preparation method therefor

Info

Publication number: WO2012100639A1
Application number: PCT/CN2012/000029
Authority: WO
Inventors: 郭凌凌
Original assignee: Kuo Ling-Ling
Priority date: 2011-01-28
Filing date: 2012-01-09
Publication date: 2012-08-02
Also published as: CN102614831B; CN102614831A

Abstract

Disclosed are a cigarette composite filter material and a preparation method therefor. The components of the composite filter material comprise: 80-90 parts by weight of modified active clay and 7-15 parts by weight of a binder, as well as 0.5-1.5 parts by weight of barium sulfate and 2-4 parts by weight of diatomite. The cigarette composite filter material of the present invention can selectively adsorb harmful substances in cigarette smoke, has a high adsorption capability, and can reduce the hazard of cigarette to the maximum degree, while keeping the flavor and characteristics of the cigarette.

Description

Cigarette composite filter material and preparation method thereof

The present invention relates to a filter material and a method of preparing the same, and more particularly to a composite filter material for cigarettes and a method of preparing the same. Background technique

Say

China is the country with the largest cigarette consumption among the world's smokers. According to statistics, there are more than 320 million smokers. Smoking is very harmful to the human body, not only that, second-hand smoke does not hurt the smokers who do not smoke.

A smoker. With the people's attention to health and the increasing demands of advanced countries and the United Nations Health Organization for solving the problem of excessive cigarette tar content in China, China will face pressure from domestic and international pincers. In order to cope with future tobacco damage, the Chinese government I have invested huge human and financial resources but still can't see the real results.

At present, the safety of cigarettes is evaluated by the three indicators of tar, nicotine and CO. According to the current research results, only about 0.6% of the tar is directly or indirectly harmful to the human body. 99. 4% or more The ingredients are harmless to the human body, most of which are tobacco aroma substances. Because of the limitations of technology, these harmful components cannot be selectively removed. Therefore, the tobacco industry has adopted a method of reducing tar. Although defocusing can reduce some harmful components, it also reduces the aroma components, which affects the aroma of cigarettes. The charm is greatly discounted.

China has formulated the production target of cigarettes as "high aroma, medium nicotine, low harm", and the cigarette tar content can not exceed l Otng / support, but there are very few cigarette brands that can reach this standard in China, you must know, The removal of tar from tobacco into low tar cut tobacco is subject to multiple extractions and long repeated processes to achieve the requirements. The resulting cost is very high. Therefore, in the prior art, most of the cigarettes use other methods of reducing the focus, such as:

1. Ventilation technology method: This method is to use a laser hole at the end of the filter cotton fiber to absorb the air through the smoke to neutralize the smoke. When the laser hole is dense and large, the air is sucked in, and the suction is There is less smoke. This is the most rapid method of defocusing at this stage. However, the sampling results of foreign testing institutions are: The total tar content is indeed Decline, but harmful substances in the unit tar have increased.

2. Increase the length of the acetic acid cotton filter. This method can indeed retain more smoke tar. In general, the reduction ratio is limited. The harmful substances in the tar can not be solved by the growth of acetic acid cotton fiber alone.

3. Add activated carbon to the acetic acid cotton filter. This method should be the most effective method for reducing the focus and reducing the damage. Because activated carbon is a very effective adsorbent, most foreign brands of cigarettes use this method to reduce the focus at this stage, but The main reason is that the adsorption capacity of activated carbon is too strong and non-selective, the effect of adding less is not achieved, and the ventilation technology is added to match, and the addition of more tar causes the adsorption of nicotine. (Nicotine) and aromatic substances, so that the cigarettes are smoked and tasteless, which changes the original characteristics and flavor of each brand of cigarettes, and it is difficult to attract smokers to buy. Summary of the invention

The present invention is directed to the defects of the prior art, and provides a cigarette composite filter material which can selectively adsorb harmful substances in cigarettes and has strong adsorption capacity, and a preparation method thereof.

The technical solution of the present invention is as follows:

A cigarette composite filter material, the components of the filter material and parts by weight thereof include: 80-90 parts of modified activated clay and 7-15 parts of adhesive.

The filter material may further comprise 0. 5-1. 5 parts by weight of barium sulfate and 2-4 parts by weight of diatomaceous earth.

The 5% of the components of the modified activated clay and the weight percentage thereof include: silica 65%-70%, aluminum oxide 12% - 18%, ferric oxide 2% - 5%, magnesium oxide 1. 5% - 3%, 6%, 6%, 3%, 3%, 3%, 3%, 5%, 5% - 8°/. .

The oxidized magnesium oxide is 2. 7%, the second sulphuric acid is 2. 5%, the magnesium oxide is 2. 0%, the potassium oxide is 0. 0%, potassium oxide 0度。。 4%, Titanium oxide 0. 4%, calcium oxide 0. 6%, sodium oxide 0. 6%, water 7. 0 ° /. .

The component of the modified activated clay and its weight percentage is: silica 66.1%, aluminum oxide 15.2%, ferric oxide 4%, magnesium oxide 2. 4%, potassium oxide 2. 5%。 5%, TiO 2 0. 6%, oxidized calcium 1. 1%, sodium oxide 0. 9 ° /. , water 7. 2 ° /. .

The adhesive is maltodextrin, starch, aqueous glue or a mixture of the above ingredients.

The preparation method of the cigarette composite filter material of the invention comprises the following steps: A. The modified activated clay and the adhesive are poured into a high-speed mixer in a ratio of 10 to 15 minutes, and stirred uniformly;

B. extruding the agitated material through an extruder;

C. The granulated granules are sent to a baking box and baked at a temperature of 120-15 (TC temperature for 10-15 minutes to make it a dry composite filter material. After drying, the moisture content of the product is 7-1 0%. ;

D. The dried composite filter material is sized.

Prior to said step A, the modified activated clay was first stirred uniformly with barium sulfate and diatomaceous earth. Compared with the prior art, the modified composite white clay composite material modified by the cigarette composite filter material of the invention can be used as a filter for cigarette smoke to selectively adsorb harmful substances in the flue gas, and has strong adsorption capacity. However, it does not reduce the aroma of cigarettes, so that the cigarettes meet the requirements of "high aroma, medium nicotine, low harm". After as many smokers try to pump, the filter material of the invention is added to the acetic acid cotton filter. The aroma of cigarettes is delicate, mellow, tasteless, non-smooth and not spicy, which greatly reduces the harmful components in cigarette tar and improves the safety of cigarette smoking. detailed description

The present invention will be further described in detail below with reference to the embodiments.

The component of the cigarette composite filter of the present invention and the parts by weight thereof include: modified activated clay 80-90 parts, adhesive 7-15 parts, barium sulfate 0. 5-1. 5 parts and diatomaceous earth 2 - 4 parts . The filter material of the present invention can be used as follows:

5份, 地藻土2. 5份。 5 parts of modified activated clay, sulphate sulphate, diatomaceous earth, 4 parts, and the adhesive agent. And 12 parts of the adhesive.

Example 3, modified activated clay 90 parts, barium sulfate 1. 5 parts, diatomaceous earth 1. 5 parts and adhesive agent example four, modified activated clay 90 parts, barium sulfate 1 part, diatomaceous earth 1 part and 8 parts of adhesive. Wherein, the components of the modified activated clay and the weight percentage thereof include: silica 65%-7.0%, Aluminum oxide 1 ^2% - 18 ° /. , 2% 3% of ferric oxide, 1.5% - 3% of magnesium oxide, 1% - 3% of potassium oxide, 0. 3 ° /. _0.8%, 'calcium oxide 0.5% - 1.5%, sodium oxide 0.5% _1.3%, water 6% - 8%.

The components of the modified activated clay and the weight percentage thereof can be used in the following examples:

Example 1 Silica 68.7%, Al2O3 16.8%, Fe3O2 2.5%, Magnesium Oxide

2.0%, potassium oxide 1.4%, titanium dioxide 0.4%, calcium oxide 0.6%, sodium oxide 0.6%, water 7.0%.

Example 2, Silica 66.1%, Al2O2 15.2%, Ferric Oxide 4%, Magnesium Oxide

2.4%, potassium oxide 2.5%, titanium dioxide 0.6%, calcium oxide 1.1%, sodium oxide 0.9%, water 7.2%. The adhesive may be a maltodextrin, a starch, an aqueous glue or any mixture of the above ingredients. Wherein, the starch may be used in various types of starch such as corn starch, potato starch or sweet potato starch, and the water-based glue may be honey, maltose or the like, as long as it is a non-toxic water-soluble glue. The preparation method of the cigarette composite filter material of the invention comprises the following steps:

A. The modified activity, white clay, barium sulfate and diatomaceous earth are poured into a high-speed mixer in a ratio of about 10-15 minutes, and stirred uniformly;

B. Then, the adhesive is poured into a high-speed mixer and stirred with the mixture in the above step A for 10 - 15 minutes to make it evenly stirred;

C. extruding the agitated material through an extruder;

D. The granulated granules are sent to a tunnel oven for tumbling and baking at a temperature of 120-150 ° C for 10-15 minutes to make it a dry composite filter. After drying, the moisture content of the product is 7- 10%;

E. Pour the dried composite filter material into the whole machine, and the particle size can be granulated according to the customer's requirements to meet the customer's requirements of mesh size and particle size;

F. Vacuum packaging the whole good composite filter material.

The above-mentioned entire production process draws on automated production, and requires less labor. A production line requires about 3-5 people. Due to fully automatic production, the product quality can reach a unified standard.

The composite filter material of the invention uses the modified activated clay as the main component, and the pore size of the activated clay has reached the nanometer level, and it has numerous small holes and duplicate pores, and the pore diameter is between 5-10 nm, and there are 99 More than 5% of the gap can be penetrated. The distribution and structure of the pore size are composed of cotton layer by layer, which is different from the single layer of pores of other molecular sieves. Because of this characteristic, it is greatly improved in the adsorption capacity. A lot higher. The addition of diatomaceous earth and barium sulfate can act as a dispersing agent for the activated clay, and the diatomaceous earth itself also has nanoporosity, so it does not affect the adsorption capacity of the activated clay. Barium sulfate has a larger specific gravity, which is beneficial to the uniform mixing of the components, and its composition has a certain effect on the harmful substances in the adsorbed tar.

The composite filter material of the present invention has a ratio of polycyclic aromatic hydrocarbons in the flue gas ratio of 11.9: 1. The composite filter material of the present invention and the same volume of the original filter material are compared with the same weight of the original package of the acetic acid cotton fiber filter rod. Compared with the packaged acetic acid cotton filter rod, the amount of polycyclic aromatic hydrocarbons in the flue gas is 1: 2. 45. The test item has passed the internationally certified unit SGS to detect 16 polycyclic aromatic hydrocarbons. The total weight of the composite filter of the present invention is also detected as a non-toxic grade by SGS.

The suspected carcinogenic and carcinogenic substances in the flue gas are mainly fused aromatic hydrocarbons in flue gas, and the condensed aromatic hydrocarbons are the products of incomplete combustion of tobacco under high temperature and anoxic conditions. The composite filter material of the present invention should be the best adsorbent material for fused aromatic hydrocarbons by SGS, and the amount of fused aromatic hydrocarbons in the flue gas can be adsorbed to a minimum. Other harmful substances in the flue gas such as: gas nitrosamines, free radicals, etc., the components of the activated clay in the composite filter material of the present invention are added with components which allow these harmful substances to be partially adsorbed. Only about 0.6% of the flue gas tar is directly or indirectly harmful to humans. 99. «The above ingredients are harmless to the human body, most of which are tobacco aroma substances. Nicotine (nicotine) can be said to be harmless to the human body. Nicotine is an addictive effect on smokers. The composite filter material of the invention is developed according to the goal of "high aroma, medium nicotine, low harm", and the total amount of tar is reduced by about 30-50%, but the problem of condensed aromatic hydrocarbons in tar is reduced by about 95% or more. , the total amount of nicotine (nicotine) decreased by about 15-25%. This is the index obtained by adding 0.1 g of the composite filter of the present invention per cigarette. Each cigarette factory can increase or decrease the amount of additives according to various brands to achieve the required indicators.

The composite filter material of the present invention does not adsorb the aroma components of cigarettes, so that the original mouthfeel and flavor of the cigarette can be retained. 5克/支, The cigarettes after the use of the filter material of the present invention will make the smoker feel "a fine, mellow, no odor, no sputum, not spicy", the recommended amount of 0. 05-0. 15 g / support, The addition method is two-stage or three-stage, wherein the two-stage type refers to adding the composite filter material of the invention in the front part of the traditional acetic acid cotton fiber, and the three-stage type means that the invention is used in the two-stage traditional acetic acid cotton fiber. The composite filter material is separated.

Claims

Claim

A cigarette composite filter material, characterized in that the components of the filter material and parts by weight thereof comprise: 80-90 parts of modified activated clay and 7-15 parts of adhesive.

The cigarette composite filter according to claim 1, wherein the filter material further comprises 0.5 to 1.5 parts by weight of barium sulfate and 2 to 4 parts by weight of diatomaceous earth.

The cigarette composite filter according to claim 1 or 2, wherein the components of the modified activated clay and the weight percentage thereof comprise: silica 65% - 70%, aluminum oxide 12% - 18%, ferric oxide 2% - 5%, magnesium oxide 1.5% - 3%, potassium oxide 1% - 3%, titanium dioxide 0.3% - 0.8%, calcium oxide 0.5% - 1.5%, sodium oxide 0.5% _1 .3%, water 6%_8%.

The cigarette composite filter according to claim 3, wherein the composition of the modified activated clay and the weight percentage thereof are: 68.7% of silica, 16.8% of aluminum oxide, and ferric oxide. 2.5%, magnesium oxide 2.0%, potassium oxide 1.4%, titanium dioxide 0.4%, calcium oxide 0.6%, sodium oxide 0.6%, water 7.0%.

The cigarette composite filter according to claim 3, wherein the modified activated clay has a composition and a weight percentage thereof: silica 66.1%, and aluminum oxide 15.2. /. , ferric oxide 4%, magnesium oxide 2.4%, potassium oxide 2.5%, titanium dioxide 0.6%, calcium oxide 1.1%, sodium oxide 0.9%, water 7. Vk.

The cigarette composite filter according to claim 1 or 2, wherein the adhesive is maltodextrin, starch, aqueous glue or a mixture of the above components.

7. A method of preparing a cigarette composite filter material according to claim 1, wherein the preparation method comprises the steps of:

A. The modified activated clay and the adhesive are poured into a high-speed mixer and stirred for 10-15 minutes to make them evenly stirred;

B. extruding the agitated material through an extruder;

C. The granulated granules are sent to a baking box and tumbling and baking at a temperature of 120-150 ° C for 10-15 minutes to make it a dry composite filter material. After drying, the moisture content of the product is 7-10%. ;

D. The dried composite filter material is sized.

The method for preparing a cigarette composite filter according to claim 7, characterized in that before the step A, the modified activated clay is first stirred uniformly with barium sulfate and diatomaceous earth.