A method for optimizing the design of cigarettes

Abstract

The present invention discloses a method for optimizing the design of cigarettes. By dividing cigarette samples into two parts, namely the first cigarette and the second cigarette, fixing the first cigarette on a smoking machine, after ignition, sucking each puff and continuously knocking, measuring the maximum deflection angle α when the combustion cone falls off after each puff m , taking the minimum value of the maximum deflection angle in the first cigarette as the limit deflection angle α of the cigarette sample; fixing the second cigarette on the smoking machine, sucking each puff and knocking a fixed number of times, measuring the deflection angle β of the combustion cone after knocking m , calculating the ratio of the deflection angle β m to the limit deflection angle α, and taking the average value as the combustion cone deflection ratio of the cigarette sample. By comparing this combustion cone deflection ratio with a deflection ratio threshold, when the combustion cone deflection ratio is greater than the deflection ratio threshold, increasing the axial density of the cigarettes in this batch of cigarette samples to reduce the phenomenon of deflection of the coiled combustion cone, thereby improving the smoking experience of consumers.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette product quality detection, and particularly relates to a cigarette optimization design method. Background Art

[0002] During the puff-by-puff smoking process of cigarettes, due to the tapping behavior of consumers on the cigarette stick, the combustion cone of the cigarette may tilt or even fall off, affecting the consumption experience of consumers and damaging the brand image of cigarettes.

[0003] In the prior art, based on the cigarette butt-drop detection device, factors affecting the tendency of cigarette butt-drop are studied, such as tobacco structure, single-cigarette weight, content of combustion aids in cigarette paper, moisture content of tobacco, and content of stem pieces in tobacco, etc.

[0004] In practice, during the smoking process of cigarettes by consumers, the combustion cone of the cigarette may tilt but not fall off, and this phenomenon has a great impact on the smoking experience of consumers and the sensory quality of cigarette smoking. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the combustion cone tilts but does not fall off during the cigarette smoking process in the prior art, so as to provide a cigarette optimization design method that can optimize cigarette design.

[0006] To solve the above technical problem, the technical solution of the present invention is as follows:

[0007] A cigarette optimization design method includes the following steps:

[0008] Select a number of cigarette samples;

[0009] Fix the first cigarette in the cigarette sample on a smoking machine, light the first cigarette, and perform puff-by-puff smoking. When the first cigarette is smoked to the m-th puff position, continuously tap the first cigarette, and record the maximum deflection angle reached when the combustion cone of the first cigarette detaches. Denote the maximum deflection angle at the m-th puff position as α m , and take the minimum value of the maximum deflection angles in the first cigarette as the limit deflection angle of the cigarette sample, which is expressed as:

[0010] α = min(α1, α2... α m ...)

[0011] In the formula, α is the limit deflection angle of the combustion cone, and m is the number of puffs;

[0012] Fix the second cigarette in the cigarette sample on the smoking machine, light the second cigarette, and perform puff-by-puff suction until the burning cone detaches. After the puff-by-puff suction is completed, tap the second cigarette a fixed number of times, and record the deflection angle β of the burning cone of the second cigarette at the m-th puff. m , according to the deflection angle β m Calculate the deflection ratio of the burning cone of the second cigarette. The calculation formula is:

[0013]

[0014] In the formula: P m is the deflection ratio of the burning cone at the m-th position of the second cigarette; β m is the deflection angle of the burning cone at the m-th position of the second cigarette; Take the average value of the deflection ratios of the burning cones of all puff numbers of the second cigarette as the overall deflection ratio of the cigarette sample. The calculation formula is:

[0015] P total = avg(P1, P2...P m ...)

[0016] In the formula: P total is the average deflection ratio of the burning cone of the cigarette sample;

[0017] Compare the calculated average deflection ratio of the burning cone of the cigarette sample with the deflection ratio threshold. When the average deflection ratio of the burning cone is less than the deflection ratio threshold, increase the axial density of the cigarette.

[0018] According to some embodiments of the present invention, when measuring the limit deflection angle of the burning cone, the number of the first cigarettes selected in the cigarette sample is N, and N is greater than or equal to 2. Sequentially measure and record the maximum deflection angles of the puff-by-puff burning cones of N first cigarettes, and sequentially calculate the average value of the maximum deflection angles of the burning cones of N first cigarettes at the m-th puff, denoted as α n , and take the minimum value as the limit deflection angle of the cigarette sample.

[0019] According to some embodiments of the present invention, the number of the second cigarettes selected is M, and M is greater than or equal to 2. Sequentially calculate the average deflection ratios of the burning cones of M second cigarettes, and take the average value as the deflection ratio of the burning cone of the cigarette sample.

[0020] According to some embodiments of the present invention, the number of the cigarette samples is equal to the sum of the number of the first cigarettes and the number of the second cigarettes, and the number of the first cigarettes is equal to the number of the second cigarettes.

[0021] According to some embodiments of the present invention, the deflection ratio threshold is 10%.

[0022] According to some embodiments of the present invention, the maximum deflection angle α m and the deflection angle β m are obtained by means of post - image - processing after shooting.

[0023] According to some embodiments of the present invention, the cigarette samples need to be balanced and stationary for 48 hours before combustion.

[0024] According to some embodiments of the present invention, the mass error of each cigarette in the cigarette samples is between - 5mg and 5mg.

[0025] The technical solution of the present invention has the following advantages:

[0026] 1. The cigarette optimization design method provided by the present invention divides the cigarette samples into two parts, the first cigarette and the second cigarette. By fixing the first cigarette on the smoking machine, after ignition, it is sucked puff by puff and continuously tapped, and the maximum deflection angle α when the combustion cone falls off after each puff is measured. m Take the minimum value of the maximum deflection angles in the first cigarette as the limit deflection angle α of the cigarette sample; fix the second cigarette on the smoking machine, suck puff by puff and tap according to a fixed number of times, and measure the deflection angle β of the combustion cone after tapping. m Calculate the ratio of the deflection angle β m to the limit deflection angle α, and take the average value as the deflection ratio of the combustion cone of the cigarette sample. By comparing the deflection ratio of the combustion cone with the deflection ratio threshold, when the deflection ratio of the combustion cone is greater than the deflection ratio threshold, increase the axial density of the cigarettes in the cigarette sample batch to reduce the phenomenon of deflection of the wound combustion cone, thereby improving the smoking experience of consumers.

[0027] 2. In the cigarette optimization design method provided by the present invention, when there are multiple first cigarettes and second cigarettes, calculate the average value α of the maximum deflection angles of the combustion cones at the m - th puff of multiple first cigarettes. n Take the minimum value among them as the limit deflection angle of the cigarette, calculate the average deflection ratio of the combustion cones of multiple second cigarettes, and take the average value as the deflection ratio of the combustion cone of the cigarette sample. The more the number of the first cigarettes and the second cigarettes, the smaller the error between the deflection ratio of the combustion cone of the cigarette sample obtained and the deflection ratio of the combustion cone of the actual batch of cigarettes, and the more accurate the experimental data obtained.

[0028] 3. In the cigarette optimization design method provided by the present invention, the maximum deflection angle α m and the deflection angle β m are obtained by means of post - image - processing after shooting, avoiding the measurement by human eyes, reducing errors, and improving the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 It is a schematic diagram of the cigarette structure provided in some embodiments of the present invention. Specific embodiments

[0031] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Based on the background art, the present invention discloses a first specific embodiment to solve the defects of the prior art, that is, to overcome the defect that the combustion cone is inclined and does not fall off during the cigarette suction process in the prior art, and to optimize the cigarette design.

[0036] This embodiment measures the deflection angle of the combustion cone based on a cigarette combustion cone head-drop performance detection device, and the suction mode of the smoking machine is selected as the standard suction ISO mode.

[0037] In an embodiment of the present invention, three different batches of conventional cigarettes are selected and defined as Class A cigarettes, Class B cigarettes, and Class C cigarettes respectively. The axial density of Class A cigarettes is 230 mg / cm 3 , the axial density of the Class B cigarette sample is 240 mg / cm 3 , and the axial density of Class C cigarettes is 250 mg / cm 3 . The same number of cigarette samples are drawn from these three batches of cigarettes, that is, 20 cigarettes are drawn from each batch of cigarettes as cigarette samples. And these three types of cigarette samples are placed in the same experimental environment. In some embodiments of the present invention, the experimental environment temperature is (22±1)°C, and the relative humidity of the experimental environment is (60±2)%. To reduce the experimental error, the mass error between cigarette samples is within the range of ±5 mg.

[0038] Before the experiment, the Class A cigarette samples, Class B cigarette samples, and Class C cigarette samples are horizontally statically placed for 48 hours to ensure that the axial density of each cigarette sample is evenly distributed in the horizontal direction to reduce the experimental error.

[0039] As shown in Figure 1 , the deflection angle of the combustion cone is defined as the angle β between the central axis L1 of the cigarette and the central axis L2 of the combustion cone. A force application point is set at x meters from the filter tip of the cigarette sample to facilitate tapping or flicking the cigarette sample.

[0040] The Class A cigarette samples are evenly divided into two parts, that is, each part is 10 cigarettes. The 10 Class A cigarette samples are successively fixed on the smoking machine, lit and sucked one by one. When the cigarette is sucked to the mth puff position one by one, continuous tapping or flicking is performed at the force application point, and the maximum deflection angle reached when the combustion cone falls off is measured. The 10 Class A cigarette samples are repeatedly measured, and the average value of the maximum deflection angle of each Class A cigarette sample at the mth puff is obtained, denoted as the limit deflection angle α corresponding to this puff number m , and the minimum value among them is taken as the limit deflection angle α of Class A cigarettes, expressed as α = min(α1, α2...α m ...). In the formula: α is the limit deflection angle of the cigarette combustion cone, and m is the puff number of the cigarette.

[0041] After measuring the ultimate deflection angle of Class A cigarettes, another 10 Class A cigarette samples are successively fixed on the smoking machine. After ignition, they are sucked puff by puff until the combustion reaches the force application point or the combustion cone detaches. After each puffing technique, the cigarette is tapped or struck a fixed number of times according to the fixed force application parameters. Among them, the tapping or striking force of the Class A cigarette sample, that is, the impact action time, is (38±2) gf, the force application point x is (30±0.5) mm, and the number of impacts is 2.

[0042] Record the deflection angle β of the combustion cone after tapping m , according to the ultimate deflection angle α and the deflection angle β of the combustion cone m of the ratio, obtain the deflection ratio P of the combustion cone corresponding to the number of puffing m , calculate the average value P total = avg(P1, P2...P m ...) as the average combustion cone deflection ratio of a Class A cigarette sample. After repeating the measurement of 10 Class A cigarette samples, calculate and obtain the scoring value as the combustion cone deflection ratio of Class A cigarettes.

[0043] The measurement methods of the ultimate deflection angle and the combustion cone deflection ratio of Class B cigarettes and Class C cigarettes are the same as above. According to the measurement, the ultimate deflection angles of Class A cigarettes, Class B cigarettes and Class C cigarettes are all 30°.

[0044] Table 1 shows the deflection angle P of the combustion cone of each puff of the combustion cones of Class A, Class B and Class C cigarette samples m and the average deflection angle P of the combustion cone total parameter table (%)

[0045]

[0046] According to Table 1, the average deflection angle P of the combustion cones of Class A cigarette samples and Class B cigarette samples total is greater than 10%, and the combustion cone deflection phenomenon occurs, which has a negative impact on the cigarette smoking experience. According to the parameters in Table 1, when the axial density of the cigarette increases, the combustion cone deflection ratio of the cigarette shows a downward trend. Therefore, increasing the axial density of the cigarette can reduce the phenomenon of the combustion cone deflection of the cigarette.

[0047] According to the above specific embodiments, a cigarette optimization design method proposed by the present invention includes the following steps:

[0048] Select a number of cigarette samples; it can be understood that the more the number of samples, the closer the measured parameter values are to the actual values of the cigarette batches of the samples, but there is a defect of difficult calculation. In some embodiments of the present invention, the sample quantity value range is 20 - 60. The specific value of the sample is not a limitation of the present invention.

[0049] Take the first cigarette from the cigarette sample and fix it on the smoking machine, light the first cigarette, and take puffs one by one. When the first cigarette is puffed to the mth puff position, tap the first cigarette continuously, and record the maximum deflection angle reached when the burning cone of the first cigarette is separated. The maximum deflection angle at the mth puff position is recorded as α m , taking the minimum value of the maximum deflection angle in the first cigarette as the limit deflection angle of the cigarette sample, expressed as:

[0050] α=min(α1,α2...α m ...)

[0051] Where α is the limit deflection angle of the combustion cone, and m is the number of suction ports;

[0052] Take a second cigarette from the cigarette sample and fix it on the smoking machine, light the second cigarette, and smoke it puff by puff until the combustion cone is separated. After the puff by puff is finished, tap the second cigarette for a fixed number of times, and record the deflection angle β of the combustion cone of the second cigarette at the mth puff after the tapping. m , according to the deflection angle β m The deflection ratio of the burning cone of the second cigarette is calculated using the following formula:

[0053]

[0054] Where: P m β is the combustion cone deflection ratio at the mth mouth position of the second cigarette; m is the deflection angle of the combustion cone of the second cigarette at the mth puff position; the average value of the combustion cone deflection ratios of all puffs of the second cigarette is taken as the overall deflection ratio of the cigarette sample, and the calculation formula is:

[0055] P total =avg(P1,P2...P m ...)

[0056] Where: P total is the average deflection ratio of the burning cone of the cigarette sample;

[0057] The calculated average deflection ratio of the burning cone of the cigarette sample is compared with a deflection ratio threshold value. When the average deflection ratio of the burning cone is less than the deflection ratio threshold value, the axial density of the cigarette is increased.

[0058] Specifically, the cigarette sample is divided into two parts, the first cigarette and the second cigarette. The first cigarette is fixed on the smoking machine, lit, and then puffed and tapped continuously. The maximum deflection angle α when the combustion cone falls off after each puff is measured. m, take the minimum value of the maximum deflection angle of the first cigarette as the limit deflection angle α of the cigarette sample; fix the second cigarette on the smoking machine, suck it puff by puff and tap it a fixed number of times, and measure the deflection angle β of the burning cone after tapping m , calculate the deflection angle β m and the ratio of the limit deflection angle α, and take the average value as the deflection ratio of the burning cone of the cigarette sample. By comparing the deflection ratio of the burning cone with the deflection ratio threshold, when the deflection ratio of the burning cone is greater than the deflection ratio threshold, increase the axial density of the cigarettes in this batch of cigarette samples to reduce the phenomenon of deflection of the wound burning cone, thereby improving the smoking experience of consumers.

[0059] In some embodiments of the present invention, when measuring the limit deflection angle of the burning cone, the number of the first cigarettes in the cigarette sample is N, and N is greater than or equal to 2. Measure and record the maximum deflection angles of the burning cones of each puff of the N first cigarettes in sequence, and calculate the average value of the maximum deflection angles of the burning cones of the N first cigarettes at the m-th puff in sequence, denoted as α n , take the minimum value among them as the limit deflection angle of the cigarette sample.

[0060] In some embodiments of the present invention, the number of the second cigarettes is M, and M is greater than or equal to 2. Calculate the average deflection ratios of the burning cones of the M second cigarettes in sequence, and take the average value as the deflection ratio of the burning cone of the cigarette sample.

[0061] Specifically, when there are multiple first cigarettes and second cigarettes, calculate the average value α of the maximum deflection angles of the burning cones of the multiple first cigarettes at the m-th puff n , take the minimum value among them as the limit deflection angle of the cigarette, calculate the average deflection ratio of the burning cones of the multiple second cigarettes, and take the average value as the deflection ratio of the burning cone of the cigarette sample. The more the number of the first cigarettes and the second cigarettes, the smaller the error between the deflection ratio of the burning cone of the cigarette sample obtained and the deflection ratio of the burning cone of the actual batch of cigarettes, and the more accurate the experimental data obtained.

[0062] It can be understood that the values of N and M are not limitations of the present invention.

[0063] In some embodiments of the present invention, the number of the cigarette samples is equal to the sum of the number of the first cigarettes and the number of the second cigarettes, and the number of the first cigarettes is equal to the number of the second cigarettes.

[0064] Specifically, the cigarette samples are evenly divided into two parts, namely, the first cigarettes and the second cigarettes with equal quantities. The limit deflection angle of the cigarette samples is obtained through the first cigarettes. According to the limit deflection angle, the combustion cone deflection ratio of the cigarette samples is obtained through the second cigarettes, so as to obtain the combustion cone deflection ratio of this batch of cigarettes. When the first cigarettes and the second cigarettes in the cigarette samples are equal, the error between the measured combustion cone deflection ratio of the cigarette samples and the combustion cone deflection ratio of this batch of cigarettes is small, thereby improving the accuracy of the experiment.

[0065] In some embodiments of the present invention, the deflection ratio threshold value is 10%.

[0066] According to some embodiments of the present invention, the maximum deflection angle α m and the deflection angle β m are obtained by means of post - imaging image processing.

[0067] Specifically, the maximum deflection angle α m and the deflection angle β m are obtained by means of post - imaging image processing, avoiding measurement by human eyes, reducing errors, and improving the accuracy of the experiment.

[0068] In the second embodiment of the present invention, two different batches of cigarettes are selected, denoted as D - type cigarettes and E - type cigarettes respectively, and 20 samples of D - type cigarettes and 20 samples of E - type cigarettes are selected. According to the above - mentioned measurement methods for the limit deflection angle of the cigarette combustion cone and the combustion cone deflection ratio, under the condition that the experimental environment temperature is (22 ± 1)°C and the relative humidity of the experimental environment is (60 ± 2)%, the deflection angles of the combustion cones of D - type cigarette samples and E - type cigarette samples are measured based on the cigarette combustion cone head - dropping performance detection device, and the suction mode of the smoking machine is selected as the standard suction ISO mode.

[0069] It is measured that the limit deflection angles of both D - type cigarettes and E - type cigarettes are 30°, and Table 2 is calculated.

[0070] Table 2 is the parameter table of the per - puff combustion cone deflection angle P m and the average combustion cone deflection angle P totat of D - type and E - type cigarette samples (%)

[0071]

[0072] It can be seen from Table 2 that the average combustion cone deflection angle P total of D - type cigarettes and E - type cigarettes > 10%, showing a combustion cone deflection phenomenon, which has a negative impact on the smoking experience of cigarettes and has a risk of head - dropping; and the risk of head - dropping is the greatest at the fourth puff, and the risk of head - dropping of E - type cigarettes is higher than that of D - type cigarettes.

[0073] It can be understood that the cigarette optimization design method can not only provide basic research support for the optimization design of cigarette parameters, but also judge the probability of the occurrence of the combustion cone deflection phenomenon and the position where the combustion cone deflection phenomenon is likely to occur by studying the change of the per puff and average combustion cone deflection angle P of the cigarette, so as to provide a reference for evaluating the probability of the occurrence of the head drop phenomenon and the position where the head drop is likely to occur. total Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

[0074] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A cigarette optimization design method, characterized in that, Including the following steps: Select a number of cigarette samples; Fix the first cigarette in the cigarette sample on the smoking machine, light the first cigarette, and perform puff-by-puff suction. When the first cigarette is suctioned to the m-th puff position, continuously tap the first cigarette, and record the maximum deflection angle reached when the combustion cone of the first cigarette detaches. Denote the maximum deflection angle at the m-th puff position as α m , take the minimum value of the maximum deflection angles in the first cigarette as the limit deflection angle of the cigarette sample, which is expressed as: α = min(α1, α2... α m ...) Where α is the limit deflection angle of the combustion cone and m is the number of puffing draws; Fix the second cigarette in the cigarette sample on the smoking machine, light the second cigarette, and perform puff-by-puff suction until the burning cone detaches. After the puff-by-puff suction is completed, tap the second cigarette a fixed number of times, and record the deflection angle β of the burning cone of the second cigarette at the m-th puff. m , according to the deflection angle β m Calculate the deflection ratio of the burning cone of the second cigarette. The calculation formula is: Where: P m is the combustion cone deflection ratio at the m-th puff position of the second cigarette; β m is the deflection angle at the m-th puff position of the combustion cone of the second cigarette; The average value of the combustion cone deflection ratios of all puff numbers of the second cigarette is taken as the overall deflection ratio of the cigarette sample, and the calculation formula is: P total = avg(P1, P2... P m ...) Where: P total is the average deflection ratio of the combustion cone of the cigarette sample; Compare the calculated average deflection ratio of the combustion cone of the cigarette sample with the deflection ratio threshold. When the average deflection ratio of the combustion cone is less than the deflection ratio threshold, increase the axial density of the cigarette.

2. The cigarette optimization design method according to claim 1, characterized in that, When measuring the limit deflection angle of the combustion cone, the number of the first cigarettes in the cigarette sample is selected as N, where N is greater than or equal to 2. The maximum deflection angles of the combustion cones of each puff of the N first cigarettes are measured and recorded in sequence, and the average value of the maximum deflection angles of the combustion cones of the N first cigarettes at the m-th puff is calculated in sequence, denoted as α n , and the minimum value among them is taken as the limit deflection angle of the cigarette sample.

3. The cigarette optimization design method according to claim 2, characterized in that Select the number of the second cigarettes as M (M is greater than or equal to 2), and calculate the average deflection ratio of the combustion cones of the M second cigarettes in sequence, and take the average value as the deflection ratio of the combustion cone of the cigarette sample.

4. The cigarette optimization design method according to claim 1, wherein The number of the cigarette samples is equal to the number of the first cigarettes plus the number of the second cigarettes, and the number of the first cigarettes is equal to the number of the second cigarettes.

5. The cigarette optimization design method according to claim 1, characterized in that The deflection ratio threshold is 10%.

6. The cigarette optimization design method according to claim 1, wherein The maximum deflection angle α m and the deflection angle β m are obtained by means of post - image - processing after shooting.

7. The cigarette optimization design method according to claim 1, characterized in that, The cigarette samples need to be balanced and stationary for 48 hours before combustion.

8. The cigarette optimization design method according to claim 1, wherein The mass error of each cigarette in the cigarette sample is between -5 mg and 5 mg.

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