HU213930B - Process for manufacturing smoke filter with improved efficiency for tobacco products - Google Patents

Abstract

 The present invention relates to a method for producing a high-efficiency fume filter for use in bulk products, known in the art for producing cellulose acetate or creped paper. The invention relates to a mixture of 20 to 80 wt.% Of acidic acid, 20 to 80 wt. the resulting slurry of 5 to 20 wt.% of the filter cable is sprayed with a filter cable lime that has been produced by the so-called filter cable, or the water is made from 2 to 10 wt. Creped Paper Filter Cable Made with Acetate Filter Cable Stonewash. ŕ

Description

FIELD OF THE INVENTION The present invention relates to a process for the preparation of a highly effective smoke filter for use in tobacco products, which comprises the production of cellulose acetate or crepe paper in a known manner.

The adverse health effects of tobacco products are well known, and many methods have been developed to reduce the adverse health effects of tobacco products. In one group of processes, the smoke is passed through a filter made of paper or cellulose acetate or the like, or the introduction of harmful substances into the lungs is reduced by the addition of various absorbent substances to the filters.

The differences between the methods are in the methods of making the absorbent and filtering material and in the process of incorporating the absorbent (s) into the filter.

The requirements for filters are very diverse. The filter must, of course, absorb as many harmful substances as possible, but it must also have the same tactile and hardness as the tobacco-filled part, and be inexpensive, productive and integrated with the tobacco-filled part.

U.S. Patent No. 4,193,412 discloses an additive for tobacco products, smoke filter elements therefor, and a process for preparing the composition. According to the patent, at least two highly dispersed metal oxides or metal oxide hydrates are used to enhance the absorption of toxic materials.

The disadvantages of patented and patented cigarettes and filter filters are that although some of the byproducts that are harmful to health are removed from the smoke, they can also be used to remove harmful substances due to their heavy metal content, the heavy metal content of the butt increases significantly, increasing the hazardous nature of cigarette waste.

U.S. Patent No. 4,778,602 relates to the manufacture of a multifunction filter. According to the patent, a filter can be produced economically by treating highly humified peat with an alkaline solution and subsequently mixing it with a four-valent mixture until the hum and the fulvic acid precipitate. The filter itself is formed from the precipitate by a variety of processes, oxidation, with or without acid reagent, heating or semi-coking, to form the final dry solid product, which is well suited for filtering hydrophobic mixtures out of water with significant ion exchange effect.

The filters produced by the patent process are used for water filtration.

The filter produced by the process according to the patent is not suitable or very difficult to use as a filter in tobacco articles, since the material thus obtained can be applied very hard on paper or the like.

U.S. Patent No. 4,861,481 discloses a process for making a multifunctional filter. The process and the field of application of the material produced by its implementation are very similar to the previously disclosed US Patent No. 4,778,602, except that the filter is manufactured under pressure.

U.S. Patent No. 4,811,745 discloses a process for removing by-products from cigarette smoke. In the process of the patent, the cigarette filtering elements are treated with one or more substances which are zinc chloride, iron bromide, calcium bromide, zinc thiocyanide, sarcosine hydrochloride, magnesium sulfate alone or in combination with glyceryl triacetate.

A disadvantage of the patented cigarette filters is that, although they remove some of the byproducts that are harmful to health, their high heavy metal content can also lead to harmful substances in the body and the heavy metal content of the butt after smoking cigarette significantly increases the amount of dangerous nature.

U.S. Patent No. 4,920,990 relates to cigarettes containing 60-75% tobacco and 25-40% other smokable material, namely 50-70% calcium carbonate, 15-40% pyrolized cotton and 7-12% polysaccharide binder. The cigarette filter is made from conventional paper or, if desired, cellulose acetate material.

The patent therefore concerns a cigarette with a filter made of a conventional material.

Hungarian Patent No. 176,508 relates to a method for increasing the efficiency of tobacco smoke filters, especially cigarette smoke filters. In the process of the patent, perlite is sprayed uniformly or mixed with other porous structures with an absorbent filter additive onto a carrier material, whereby a multi-filter cigarette is bonded with or without a carrier material.

The filter-absorbing properties of the smoke filters produced by the patent process are not very good compared to other similar materials. The process is complicated by the use of the adhesive, the distribution of the material is very difficult to ensure and the particulate material has an unpleasant organoleptic effect in the smoke filter.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of producing a smoke filter which filters and absorbs harmful substances to a large extent from cigarette smoke, and has similar strength and tactile characteristics to the filled portion of the cigarette.

It is a further object of the present invention to provide a process for producing a smoke filter performing the above functions economically, productively and in bulk.

The present invention is based on the discovery that if a mixture of humic acid, potassium salt of humic acid and fulvic acid is applied to known conventional cigarette smoke filter material, cellulose acetate or crepe paper, a high degree of filter and absorbent smoke filter can be provided.

The process of the invention is further based on the discovery that a mixture of potassium salt of hunic acid, humic acid and fulvic acid is used in acetate or creped papermaking.

HU 213 930 Β cigarettes and showed the following results:

During the course of the process, the wetting agent or plasticizer can be incorporated into the cellulose acetate or crepe paper clay inexpensively. That is, since the additive clay can be mixed with the plasticizer or wetting agent used in the manufacturing process, it is not necessary to change the steps of the manufacturing process of the smoke filter or the equipment required to manufacture it.

SUMMARY OF THE INVENTION The present invention comprises milling a mixture of 20-80% by weight of humic acid, 20-80% by weight of its potassium salt and 20-80% by weight of fulvic acid to a particle size of 20-50 microns. the resulting slurry is sprayed onto the filter cable at a ratio of 5 to 20% by weight, the resulting filter cable is combined with a conventionally prepared filter cable, or the powder is immersed in an aqueous solution of 2 to 10% by weight and the aqueous solution is process - wet, combining the crepe paper filter cable thus obtained with an acetate filter cable.

The process according to the invention is described in detail in FIGS. example.

Example 1

A mixture of 40% by weight of humic acid and 40% by weight of its potassium salt and 20% by weight of fulvic acid was ground to a particle size of 25 microns, mixed with the plasticizer for acetate cable production, 30% by weight and 10% The filter cable was combined with 50-50% conventionally produced cellulose acetate filter cable to produce a cigarette using known filter cable.

Example 2

A mixture of 30 wt.% Of humic acid and 45 wt.% Of its potassium salt and 25 wt.% Of fulvic acid was ground to a 50 micron particle diameter to form a 5 wt.% Aqueous solution, and the aqueous solution was used as a wet filtering material. The smoke filter additive is thus placed in the fibers where it is fixed during the known production process. The creped paper filter cable produced was combined in a 50-50% ratio with an acetate filter cable and a cigarette was made using known combined filter cable.

The smoke filters produced by the procedure of Examples 1-2 have been subjected to experiments to confirm the beneficial effects. Crepe paper + acetate and acetate smoke filters were used as controls.

Testing the effect of smoke filters with a 200 mm long filter with a standard 80 mm smoke filter

smoke Filter type CO mg / cig. CO reduced. % HCN mg / cig. HCN reduced. % WOMAN mg / cig. WOMAN reduced. % c. acetate 19.9 - 0.24 - 25.7 - Example 1 18.9 5 0.18 25 18.7 30 crepe. priest. + c. acetate 50-50% ethyl combination ja 17.3 - 0.24 - 13.1 - Example 2 12.9 25 0.16 35 10.7 20

(Explanation of table abbreviations:

reduced. - reduced cig. - cigarette

c. acetate - cellulose acetate)

The experiments have shown that the filter filters produced by the process according to the invention have a better filter absorbing effect than the creped paper cellulose acetate and cellulose acetate filters produced by the known process.

With the process of the present invention, smoke filters can be produced inexpensively and efficiently on the equipment used to date.

The smoke filters produced by the process of the invention can be applied to the filled part of the cigarette by methods known to date.

The tactile strength properties of the smoke filters produced by the process of the present invention are similar to those of the filled portion of the cigarette.

Claims (1)

PATIENT INDIVIDUAL POINTS A method of producing a high-efficiency smoke filter for tobacco products comprising producing a filter of cellulose acetate or creped paper having a humic acid content of from 20 to 80% by weight, from 20 to 80% by weight of potassium salt and from 20 to 80% by weight of fulvic acid. milled to a micron particle diameter, the powder is mixed with the plasticizer of the acetate cable manufacturing, preferably triacetin, in a proportion of 5 to 50% by weight, and the suspension thus prepared is sprayed onto the filter cable at a ratio of 5 to 20%, the filter cable thus produced is combined with a conventionally produced filter cable or from 2% to 10% by weight of the water. to prepare a solution of the creped paper filter cable so produced with the aqueous solution, the paper-based smoke filter paper, - during the creping process, to produce its material. combined with an acetate filter cable.