CN103932394A - Multi-section composite cigarette filtering stick, preparation method thereof and application of turgid plant granules - Google Patents

Abstract

The invention discloses a multi-section composite cigarette filtering stick, a preparation method of the multi-section composite cigarette filtering stick and application of turgid plant granules. A filtering element of the filtering stick is at least composed of two unit sections. One unit section is a fiber substrate, and the other unit section is a fiber substrate comprising the turgid plant granules The preparation method includes the steps that the fiber substrate comprising the turgid plant granules is prepared firstly, the unit section of the fiber substrate comprising the turgid plant granules is prepared secondly, and the unit section of the fiber substrate comprising the turgid plant granules is combined with the fiber substrate unit section to form a binary composite filtering stick or a multi-component composite filtering stick finally. The turgid plant granules are applied to the cigarette filtering stick, tars and other harmful composition existing in the smoke can be reduced greatly, and a special aroma can be endowed on the smoke in the smoking process.

Description

A multi-segment composite cigarette filter rod and its preparation method and application of expanded plant particles

technical field

The invention relates to a multi-section composite cigarette filter rod, a preparation method thereof and the application of expanded plant particles, belonging to the field of cigarettes.

Background technique

In recent years, domestic and foreign tobacco companies have conducted a lot of research on the composite filter of various adsorption materials. The research shows that the cigarette filter is an important and effective means of reducing tar and harm. With the continuous deepening of the research on the forming characteristics and filtering mechanism of various filter materials, the development and application of composite filters are gradually becoming the focus of research at present and in the future. With the rapid development of "low-tar, low-hazard" cigarettes, research on the application of filter materials for cigarette composite filters has attracted widespread attention. Cigarettes have very few filter materials.

At present, there are many particulate adsorption materials used in cigarette filter materials, such as diatomaceous earth, activated carbon, silica gel, etc., which have special surface morphology and multi-cavity structure, and have a high-efficiency selective adsorption capacity for cigarette smoke. Miscellaneous gas, changing cigarette smoking style and other issues. Chinese patents with application numbers 201010584588.1 and 2011102339661.6 respectively disclose a natural plant filter material for filter tips and its preparation method. The natural plant stem pith material is used as the filter material, which has a good adsorption effect on cigarette smoke and has a unique Pharmacological value, but its method also has obvious deficiencies, and the added stem pith particles are too fine and too light to be unfavorable for filter rod production.

Contents of the invention

The object of the present invention is to provide a multi-segment composite cigarette filter rod which can effectively reduce tar and harm and has the function of adding flavor to the deficiencies of the prior art.

Another object of the present invention is to provide a low-cost and simple preparation method for the above-mentioned cigarette filter rod.

Another object of the present invention is to provide an application of the above-mentioned puffed vegetable particles, which can effectively reduce the tar content in cigarette smoke, and at the same time give the smoke a special aroma when inhaled.

The invention provides a multi-segment composite cigarette filter rod, which includes a fiber base material. The filter core of the filter rod is composed of at least two unit segments, one of which is a fiber base material, and the other unit segment is a fiber base containing expanded plant particles. material; the fiber base material containing expanded plant particles is made of one or more of expanded modified rice husk powder, walnut shell powder, corn cob powder or pomelo peel powder, and the expanded plant particles are evenly added to the fiber base It is made in the material; the addition amount of the expanded plant particles in the fiber base material containing expanded plant particles is 1-4mg/mm fiber base material.

The present invention also provides a method for preparing a cigarette filter rod as described above. The method is to add expanded plant particles to the fiber base material in an amount of 1 to 4 mg/mm fiber base material to make fibers containing expanded plant particles. The unit segment of the base material is combined with the unit segment of the fiber base material to form a binary composite filter rod or a multi-element composite filter rod.

The present invention also provides an application of puffed vegetable granules, wherein one or more of puffed and modified rice husk powder, walnut shell powder, corncob powder or pomelo peel powder is made into puffed vegetable granules and added to cigarette fiber The fiber substrate unit section made of puffed plant particles in the substrate is then combined with the fiber substrate unit section to form a binary composite filter rod, which is used to reduce the tar content in cigarette smoke and give the smoke a special aroma.

The expansion modification is as follows: crush one or more of rice husks, walnut shells, corncobs or pomelo peels and then sieve; sieve particles no less than 80 mesh; mix the obtained particles with a mass concentration of 0.1-10% After impregnated with the expanded agent aqueous solution, it is expanded by microwave or heating, and the expanded mixture is dried at 50-80°C, and then passed through a 30-80 mesh sieve.

The fiber substrate is one of cellulose diacetate, propylene fiber and lignocellulose.

The particle size of the expanded plant particles is 30-80 mesh.

In the multi-segment composite cigarette filter stick of the present invention, the fiber base unit segments and the fiber base unit segments containing expanded plant particles are longitudinally arranged alternately along the axial direction of the filter element and contact each other.

In the multi-segment composite cigarette filter stick of the present invention, the end of the filter stick that is in contact with the smoker's mouth is a fiber substrate unit section without adding puffed plant particles.

A plasticizer of 6-8% of the total weight of the filter element is also added to the filter rod.

The plasticizer is glycerol triacetate commonly used in tobacco.

The immersion time of the present invention is preferably 10-120min.

The expanding agent of the present invention includes: one or more of soda powder, baking powder, potassium bicarbonate and ammonium bicarbonate.

The added amount of the expanded plant particles is 1-4mg/mm fiber substrate.

The concrete preparation of multistage cigarette filter rod of the present invention is:

Step 1: After crushing rice husks, walnut shells, corncobs, pomelo peels, etc., and then sieving to obtain particles no less than 80 mesh;

Step 2: Prepare an aqueous solution of bulking agent with a concentration of 0.1-10%;

Step: 3: immerse the plant particles obtained in step 2 with the above-mentioned bulking agent aqueous solution for 10-120 minutes, and then microwave or heat treat the plant particles to expand;

Step 4: Move the expanded plant granules obtained in Step 3 to an oven and dry at a temperature of 50-80°C until the moisture content is 6-8%, and then sieve to obtain 30-80 mesh granules to obtain the required expanded granule material;

Step 5: Add the granular material obtained in step 4 to the cigarette filter rod according to the addition amount of 1-4mg/mm fiber base material to make the expanded plant granular material rod section, and further compound it with acetate fiber white rod section to form a binary composite filter Great.

Compared with the prior art, the present invention has the biggest advantage that the expanded plant granular material has a larger specific surface area and a looser structure, which is very beneficial to the adsorption of harmful substances such as tar in cigarette smoke; the plant granular material is basically It belongs to agricultural product waste, with low cost, simple preparation method, and reliable industrial application prospects; at the same time, plant granular materials will release plant aroma during processing, which can give smoke a special aroma when smoking; because cigarette smoke passes through Multi-stage filtration and adsorption. At the same time, there are differences in pressure drop and structure between multiple unit sections, and the flow path of flue gas in the filter rod is also different, which is more conducive to the adsorption of flue gas and has a better effect of reducing coke and harm.

Detailed ways

The following examples are intended to illustrate the invention without further limiting the invention.

Example 1

Take dried rice husk powder, remove impurities, mechanically pulverize, and sieve to get rice husk powder with a particle size greater than 80 mesh;

Prepare 0.5% sodium bicarbonate aqueous solution;

Immerse the rice husk powder obtained in step 1 and the sodium bicarbonate aqueous solution for half an hour, and then microwave it for 3 minutes to make it puff;

Move the expanded rice husk powder obtained in step 3 to an oven and dry at a temperature of 50-80°C until the water content is 6-8%, and then sieve to get 30-60 mesh particles to obtain the required expanded rice husk powder.

The granular material is added to the cigarette filter rod according to the addition amount of 1.5mg/mm fiber base material to make the puffed rice husk granular base rod, and further compounded with the cellulose acetate white rod to form a binary composite filter rod. The binary composite filter stick is applied to cigarettes, and the total particulate matter and tar in cigarette mainstream smoke are measured according to the YC/T29-1996 standard. The test results show that compared with the control sample, the test sample can reduce cigarette tar by about 1mg, and also Can partially reduce other harmful components of cigarettes.

Example 2

Take dry corn cobs, remove impurities, mechanically pulverize, and sieve to get rice husk powder with a particle size greater than 80 mesh;

Prepare 1% aqueous solution of ammonium bicarbonate;

Immerse the rice husk powder obtained in step 1 and ammonium bicarbonate aqueous solution in equal volume for half an hour, and then microwave it for 3 minutes to make it puff;

Move the expanded rice husk powder obtained in step 3 to an oven and dry at a temperature of 50-80°C until the water content is 6-8%, and then sieve to get 30-60 mesh particles to obtain the required expanded corncob powder.

The granular material is added to cigarette filter sticks according to the addition amount of 1 mg/mm fiber base material to make puffed corn cob particle base sticks, and further compounded with cellulose acetate white sticks to form binary composite filter sticks. The binary composite filter stick is applied to cigarettes, and the total particulate matter and tar in cigarette mainstream smoke are measured according to the YC/T29-1996 standard. The test results show that compared with the control sample, the test sample can reduce cigarette tar by about 1mg, and also Can partially reduce other harmful components of cigarettes.

Claims (16)

1. A multi-section composite cigarette filter rod, comprising a fiber substrate, is characterized in that the filter core of the filter rod has at least two unit sections, wherein one unit section is a fiber substrate, and the other unit section contains puffed plant particles. Fiber substrate; the fiber substrate containing expanded plant particles is made of one or more of expanded modified rice husk powder, walnut shell powder, corn cob powder or pomelo peel powder. The expanded plant particles are evenly added to the Made from fiber base material; the added amount of expanded plant particles in the fiber base material containing expanded plant particles is 1-4mg/mm fiber base material. 2. The filter rod according to claim 1, characterized in that, the expansion modification is: one or more of rice husks, walnut shells, corncobs or pomelo peels are pulverized and sieved; Particles smaller than 80 mesh; impregnate the obtained particles with an aqueous solution of an expanding agent with a concentration of 0.1-10% by mass, and expand them by microwave or heating, and dry the expanded mixture at 50-80°C, and pass through 30-80 mesh screen. 3. The filter rod according to claim 2, characterized in that, the soaking time is 10-120min. 4. The filter stick according to claim 2, characterized in that, the bulking agent comprises: one or more of soda powder, baking powder, potassium bicarbonate, and ammonium bicarbonate. 5. The filter rod according to claim 1, characterized in that, the fiber substrate is one of cellulose diacetate, propylene fiber and lignocellulose. 6 . The filter rod according to claim 1 , characterized in that, the fibrous substrate unit segments and the fibrous substrate unit segments containing expanded plant particles are longitudinally arranged alternately along the axial direction of the filter element and are in contact with each other. 7. The filter stick according to claim 1, characterized in that, the end of the filter stick that is in contact with the mouth of the smoker is a fiber substrate unit segment without adding expanded plant particles. 8. The filter rod according to claim 1, characterized in that 6-8% plasticizer of the total weight of the filter element is added to the filter rod. 9. A method for preparing a cigarette filter rod according to any one of claims 1 to 8, wherein the puffed plant particles are added to the fiber base material in an amount of 1 to 4 mg/mm fiber base material to form The unit segment of the fiber base material containing expanded plant particles is combined with the unit segment of the fiber base material to form a binary composite filter rod or a multi-element composite filter rod. 10. An application of puffed plant granules, characterized in that one or more of puffed modified rice husk powder, walnut shell powder, corncob powder or pomelo peel powder is made into puffed plant granules and added to cigarettes The fiber base unit segment made of expanded plant particles in the fiber base material is combined with the fiber base unit segment to form a binary composite filter rod, which is used to reduce the tar content in cigarette smoke and give the smoke a special aroma. 11. The application according to claim 10, characterized in that, the preparation method of the puffed plant particles is: crushing one or more of rice husks, walnut shells, corn cobs or pomelo peels and then sieving; Take no less than 80 mesh particles; impregnate the obtained particles with an aqueous solution of an expanding agent with a mass concentration of 0.1-10%, and then expand them by microwave or heating, dry the expanded mixture at 50-80°C, and then dry it for 30-80°C. Mesh sieve, that is. 12. The application according to claim 11, characterized in that the soaking time is 10-120 minutes. 13. The application according to claim 11, wherein the bulking agent comprises: one or more of soda powder, baking powder, potassium bicarbonate, and ammonium bicarbonate. 14. The application according to claim 10, wherein the added amount of the plant particles is 1 to 4 mg/mm fiber substrate. 15. The application according to any one of claims 10 to 14, characterized in that it is made of fiber substrate unit segments containing expanded plant particles and fiber substrate unit segments arranged longitudinally along the axial direction of the filter element and contacting each other filter stick. 16. The application according to any one of claims 10 to 14, characterized in that the end of the filter rod in contact with the mouth of the smoker is a fiber substrate unit segment without adding expanded plant particles.