SU1544353A1 - Method of preparing tobacco blend - Google Patents

Abstract

The invention relates to the tobacco industry and can be used to formulate the tobacco mixture in the manufacture of smoking articles. The aim of the invention is to improve the stability of the quality of smoking articles and to accelerate the process of blending. The method consists in determining the light transmission spectrum of the aqueous extract in the ultraviolet wavelength range from 200 to 350 nm for the reference. The resulting spectrum is presented in the form of a mathematical expression. Then, the light transmittance spectra of the aqueous extract of the tobacco raw material, designed to make mixtures in the same wavelength range, according to which their quality indicators are established, are determined. The amount of each of the components for blending is determined by the minimum value of the difference between the light transmission spectrum of the reference mixture and all the light transmission spectra of the components of the tobacco raw material.

Description

The invention relates to the tobacco industry and can be used to formulate the tobacco mixture in the manufacture of smoking articles.

The aim of the invention is to improve the stability of the quality of smoking articles and to accelerate the process of blending.

The method of making tobacco mixture for smoking products, taking into account the product formulation and quality indicators of tobacco raw materials, consists in determining the light transmittance spectrum of the aqueous extract of the reference mixture of the required class of smoking products by photometry at wavelengths in the range

200-350 nm. Then, the light transmission spectrum of the aqueous extract of the components of the mixture is determined in the same way, according to which their quality is established. vena indices. The amount of each component to make up. the mixtures are set by the minimum value of the difference in the spectrum of the light transmission of the reference mixture and all the light transmission spectra of the components of the tobacco raw material.

The light transmittance spectrum of an aqueous extract of tobacco includes significantly more objective information about the tasting and technological properties of tobacco raw materials than indicators such as filling capacity.

J

WITH

cl

& 0

ness, Shmuk number and alkaloid content. Therefore, on its basis, it is possible to significantly improve the stability of the quality indicators of smoking articles and more accurately bring the created tobacco mixture to the desired quality indicators, since there is a well-defined and permanent quality standard. The proposed method of making tobacco blend makes it possible to increase the labor productivity and quality of work of the mixture compilers through the use of computers and the availability of objective information about the quality of the raw materials.

In the technique of unknown method of co-. adding tobacco blends to smoking articles, which has distinctive features proposed by the inventors.

The method is carried out as follows.

The spectrum of the light transmission of the aqueous extract is determined in the ultraviolet wavelength range of 200-350 nm for the reference. The standard represents a tobacco blend, which is approved by the Central Tasting Commission as a reference for this class of smoking articles. The operation is performed once. The resulting spectrum, presented in the form of a mathematical expression, is a benchmark for the entire tobacco industry of the USSR and is included in the GOST for the products and semi-finished products of the tobacco industry.

The light transmittance spectrum is determined by the chemical composition of the tobacco and is its business card or fingerprint. Information on practically all indicators of tobacco quality (technological properties, toxicity, tasting merit, etc.) is encrypted into the spectrum. The light transmission spectrum is graphically a curved line and can be mathematically expressed via a cubic spline, which in general looks like this:

T (-th; b) + aa; ) +

+ a,; (ft-fl;), (1)

where T is the current value of the light transmittance of the aqueous extract of tobacco;

TV - the value of light transmission

at wavelength;

a2,

0

5 0 5

0 5 o

five

but,; - coefficients approximating the dependence of the function T f () for the interval

(V,; kit.).

The light transmittance spectra of the aqueous extract of the tobacco raw material to be used for composing mixtures in the same wavelength range are then determined. After this, the task of making the mixture is to determine the amount of each of the components of the mixture. This is done on the basis of finding the minimum value of the difference between the transmittance spectrum of the standard and all the transmittance spectra of the components, i.e. from the available components with known qualitative characteristics (spectra T, Cd). . . TPSA)) make such a mixture of tobacco so that its total spectrum is the least different from the standard Tc (v).

In mathematical form, the spectrum of the mixture looks as follows:

HLW -cM, (b) + ... ,, V &), (2)

where is the spectrum of light transmission

mixtures; T, STO .... ..) - light transmission spectra

components of the mixture. Then the task in mathematical expression has the form

max / T / S - TcCM / - nin. (3)

Thus, it is necessary to solve the problem of minimizing the deviation of the spectrum of the mixture from the spectrum of the standard. Taking into account formula (2), expression (3) takes the form

max | that (o, t, ft). . .PTP (,

(four)

at the same time for its values, ... / n restrictions apply

 one; i 1, .., p.

The procedure for formulating the mixture according to the proposed method is as follows.

The obtained information about the components of the mixture in mathematical form (T, (b) ... Tn (fl)) is stored in a computer memory. Then by pre-entered into

computer memory to the standard of the mixture of this class Tc (Vv) and the corresponding restrictions calculate the required amount of each of the components of the mixture. The program for calculating the tobacco mixture can be embedded in the computer memory and connected to the program for automated selection of the necessary components of the mixture according to their spectra. Then the calculation of the components of the mixture of this class of smoking products consists in referring to the program embedded in the computer memory and specifying the class of smoking products . The rest of the work is performed by the computer. The data on the quantity of each component of the mixture is transferred to a tobacco debris, where the appropriate raw material is sampled in the required quantity for transfer to processing.

Example. A tobacco blend is compiled that is the standard for third-class smoking articles of cigarette Astra). Its light transmittance spectrum is determined (the light transmittance of aqueous tobacco extract is removed in the ultraviolet wavelength range of 200-350 nm every 5. Since the cubic spline is already inserted into the computer, information about the spectrum is entered into the computer in the form of light transmittance values. In a similar way the light transmittance spectra of the components of the blemish; si, which includes the Samsun and Dübeck aromatic tobaccos, Trapezond, Imunny, Yubileiny aromatic tobaccos. They are also introduced into the computer in the form of light magnitudes interrogation.

According to the recipe, the mixture should include aromatic tobacco of two types in the amount of 20% of the total mass and skeletal tobacco of three types in the amount of 80% of the total weight of the bags. These conditions are limiting. All this information is entered into the computer. The calculation program for the proposed method in FORTRAN is embedded in the memory of the machine and on the printout. After giving the command to perform calculations, the computer calculates the composition of the mixture. As a result of calculations, the composition of the mixture by components in mass fractions x kg is obtained.

On the basis of the proposed method of making tobacco mixtures, the process of making tobacco sacks (blends) for the production of smoking products is greatly simplified, the process of making blends is accelerated, and productivity and labor culture are enhanced by using a high-speed computer and a universal program for calculating blends.

The use of the tobacco blend method improves the quality and stability of smoking articles due to the fact that the light transmittance spectra of the aqueous extract carry much more objective information about the quality of the tobacco raw material than the Schmuck number, filling capacity and alkaloid content. In addition, there is a certain quality standard on the basis of which the mixture is compiled.

Claims (1)

Invention Formula The method of making tobacco blend for smoking products by commercial and botanical tobacco sorts, taking into account the product formulation and quality indicators of tobacco raw materials, is characterized in that, to improve the quality of the smoking products and speed up the blending process, determine the light transmittance spectrum of the aqueous extract of the reference mixture required class of smoking articles by photometry at wavelengths of 200 ... 350 nm, then the light transmission spectrum of the aqueous extract is also determined These mixtures are determined according to their quality indicators, and the amount of each component for the mixture is determined by the minimum value of the difference of the light transmission spectrum of the reference mixture and all the light transmission spectra of the tobacco raw materials.