CN112098262A - Method for evaluating comprehensive moisture retention performance of small cigarette case - Google Patents
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Abstract
The invention relates to a method for evaluating comprehensive moisture retention performance of a small cigarette box, belongs to the technical field of cigarette moisture retention performance evaluation, and discloses a method for evaluating comprehensive moisture retention performance of a small cigarette box, which is used for evaluating the moisture retention performance of the small cigarette box under the influence of storage time, environmental temperature and humidity condition factors. The environmental temperature, humidity condition and storage time are two factors of orthogonal test design, then according to the characteristics of the two factors, horizontal parameters are selected to construct an orthogonal test, according to each test scheme of the orthogonal test, the moisture content of the cigarettes in the cigarette small box under each test scheme is detected, the moisture retention index of the cigarettes in the cigarette small box is calculated, a moisture retention curve is drawn, and finally evaluation is made; the moisture content of the obtained cigarette in the small cigarette box is more accurately fit to the reality, the calculated moisture retention index of the cigarette in the small cigarette box is also accurate and fit to the reality, and method support is provided for evaluating the comprehensive moisture retention performance of the small cigarette box under different environments and time conditions.
Description
Technical Field
The invention belongs to the technical field of cigarette moisture retention performance evaluation, and particularly relates to a method for evaluating comprehensive moisture retention performance of a small cigarette case.
Background
Moisture is a key factor influencing the sensory quality of cigarettes, the moisture of cigarettes is low, and the dry sensation and irritation of smoke are increased; the cigarette has high moisture, can affect the aroma quality and the aroma quantity of the cigarette, and is easy to mildew after being stored for a long time. The moisture retention of the cigarette refers to the moisture retention capacity under specific environments, and comprises the moisture retention capacity and the moisture resistance capacity. The cigarettes finally appear in the front of consumers in the form of small box packages, so that the evaluation of the small box moisture retention performance is more practical compared with the moisture retention performance of cigarette and cigarette raw materials.
At present, an evaluation method aiming at the comprehensive moisture retention performance of the cigarette small box is not established. Patent CN103760061A discloses an evaluation method of cigarette moisture retention performance, patent CN102128763A discloses a test method of tobacco moisture retention performance, patent CN102636407A discloses a test method of tobacco physical moisture retention performance, patent CN103105341A discloses a method of evaluating tobacco moisture retention performance, patent CN103760062A discloses an evaluation method of moisture retention performance of tobacco humectant, patent CN103760060A discloses an evaluation method of tobacco raw material moisture retention performance, and patent CN103105341A discloses an evaluation method of cigarette moisture retention performance. In the prior art, the evaluation and test methods are carried out on cigarettes, humectants, tobacco leaves, tobacco stems, tobacco sheets and the like, the cigarettes to be evaluated are directly exposed in corresponding environments for storage, detection and evaluation, the influence of small cigarette boxes on the moisturizing performance of the cigarettes is not considered, and the evaluation and test methods are not consistent with the actual conditions of products.
Therefore, there is a need for a method for evaluating the comprehensive moisture retention performance of cigarette packets, which is influenced by the storage time, environmental temperature and humidity conditions.
Disclosure of Invention
In order to overcome the problems in the background art, the invention discloses a method for evaluating the comprehensive moisture retention performance of a small cigarette box, which evaluates the moisture retention performance of the small cigarette box under the influence of the storage time, environmental temperature and humidity condition factors. The method comprises the steps of determining two factors which have large influence on the moisture content of cigarettes in a small cigarette box under the conditions of environmental temperature, humidity and storage time as two factors of orthogonal test design, selecting horizontal parameters according to the characteristics of the two factors, constructing an orthogonal test, detecting the moisture content of the cigarettes in the small cigarette box under each test scheme according to each test scheme of an orthogonal test table, calculating the moisture retention index of the cigarettes in the small cigarette box, drawing a moisture retention curve and finally making evaluation.
In order to realize the purpose, the invention is realized by the following technical scheme:
a method for evaluating the comprehensive moisture retention performance of a cigarette case comprises the following steps of 1: selecting, grouping and pre-processing cigarette boxes to be evaluated, and dividing the cigarette boxes from the same box into a processing group; step 2: determining two factors which have great influence on the moisture content of the cigarettes in the small cigarette case under the environmental temperature and humidity conditions and the storage time as two factors of orthogonal test design; and step 3: selecting a horizontal parameter of a storage duration factor; and 4, step 4: selecting level parameters of environmental temperature and humidity condition factors; and 5: constructing an orthogonal test table according to the two factors and the selected horizontal parameters thereof, and respectively detecting the moisture content of the small cigarette box under each test scheme; step 6: calculating the moisture retention index of cigarettes in the cigarette small box according to the orthogonal test table; and 7: drawing a moisture retention curve; and 8: and (4) evaluating the comprehensive moisture retention performance of the cigarette case.
Further, in the step 1, if the cigarette packet to be evaluated is sampled in a cigarette production line, the cigarette packet needs to be balanced for 48 hours in an environment with the temperature of 22 +/-2 ℃ and the relative humidity of 60 +/-5%; if the small cigarette box to be evaluated is purchased in the market, the balance is required to be carried out for 30 days under the environment that the temperature is 22 +/-2 ℃ and the relative humidity is 60 +/-5%, and the small cigarette box to be evaluated, which is completely packaged and has no indentation, crease or obvious scratch, is selected after the balance is finished.
Further, the level parameters of the storage duration factor in step 3 are selected as follows: selecting the horizontal parameter of the storage time factor within 0-672h, wherein the storage time of the cigarette small box sample is 8h when the storage time is within 8h, and every 2h is a horizontal parameter; the storage time of the cigarette small box is 24 hours when 8-24 hours, and every 4 hours is a horizontal parameter; the storage time of the cigarette packet is 36h when 24-36h, and every 12h is a horizontal parameter; the storage time of the cigarette small box is 36-120h and comprises 120h, and every 24h is a horizontal parameter; the storage time of the small cigarette box is 264 hours when the storage time is 120-264 hours, and every 48 hours is a horizontal parameter; the storage time of the small cigarette box is 480h when 264-; the storage time of the cigarette small box is 480-672h, and every 96h is a horizontal parameter.
Further, the level parameters of the environmental temperature and humidity condition factors in step 4 are selected as follows: the level parameters of the environmental temperature and humidity condition factors are selected when the temperature is 0-40 ℃ and the relative humidity is 30-80%; selecting the environment temperature of 0-10 ℃, and the relative humidity of the environment is from 30% to 40% in 5-10% step length; selecting the environment temperature of 10-20 ℃, and the relative humidity of the environment is from 30% to 60% in 5-15% step length; selecting the relative humidity of the environment from 50% to 80% in 5-15% step length when the environment temperature is 20-30 ℃; the relative humidity of the environment is selected from 30% to 80% in 5-15% steps when the ambient temperature is 30-40 deg.C.
Further, in the step 5, an orthogonal test table is constructed according to the two factors and the selected horizontal parameters thereof, the moisture content of the cigarettes in the cigarette small boxes under each test scheme is respectively detected, the cigarette small box under each test scheme is a cigarette small box of one processing group, 1-2 cigarette small boxes in each processing group are used for detecting the initial moisture content, and the detection method is according to the 8 th part of the measurement of the physical properties of the cigarettes and the filter sticks of GB/T22838.8-2009: water content "was carried out.
Further, the moisture retention index in step 6 is calculated according to the contents of the orthogonal test table, and the moisture retention index is an average value of absolute change rates of the moisture content of the cigarettes under the conditions of fixed storage time, different storage environment temperatures and different humidity, and is calculated according to the following formula:
in the formula, Rt is the moisture retention index of the cigarette packet to be evaluated at a fixed storage time t, X0 is the initial moisture content of the cigarette packet, and X1 and X2 … Xn are the moisture contents of the cigarette packet at the storage time t in a specific storage environment.
Further, the step 7: and drawing a moisture retention curve, namely drawing the moisture retention curve of the cigarette packet by taking the storage time sequence as an abscissa and the moisture retention index as an ordinate according to the moisture retention indexes of the cigarette packet at different storage times.
Further, the method for evaluating the comprehensive moisture retention performance of the cigarette case comprises the following steps: the more stable the moisture retention curve is, the smaller the change of the moisture retention performance of the cigarette case along with time is, the closer the moisture retention curve is to the zero point of the abscissa, and the better the comprehensive moisture retention performance of the cigarette case is.
Drawings
Fig. 1 is a moisture retention curve diagram of cigarette cartridges stored in different storage environments for 2h, 4h, 6h, 8h, 12h, 16h, 20h, 24h, 36h, 48h, 72h, 96h, 120h, 168h, 216h, 264h, 336h, 408h, 480h, 576h and 672 h.
The invention has the beneficial effects that:
according to the invention, two factors which have larger influence on the moisture content of the cigarettes in the small cigarette case are determined as two factors of orthogonal test design, then according to the characteristics of the two factors, horizontal parameters are selected to construct an orthogonal test, the constructed double-factor multi-horizontal orthogonal test is more consistent with the actual storage condition of the small cigarette case, and the selected horizontal parameters are consistent with the environmental temperature and humidity conditions and the storage duration in the actual life, so that the moisture content of the cigarettes in the small cigarette case detected based on an orthogonal test table is more accurately attached to the actual condition, and the calculated moisture retention index of the cigarettes in the small cigarette case is also accurate and is attached to the actual condition. Provides a method support for evaluating the comprehensive moisture retention performance of the cigarette small box under different environments and time conditions.
When the small cigarette box is placed in a new environment, the influence of the environmental temperature and humidity conditions on the small cigarette box at the initial placing stage is large, the moisture content of cigarettes in the small cigarette box can change along with the environmental temperature and humidity conditions, and the change is large, so that when the horizontal parameter of the storage time factor is selected, the selection interval of the horizontal parameter of the time period with short storage time is short; along with the increase of the placing time of the small cigarette box, the moisture content of the small cigarette box tends to be balanced, and the horizontal parameter selecting interval is longer.
In addition, according to the environmental temperature and humidity conditions in actual life, the horizontal parameters meeting various practical environmental conditions are selected, so that the moisture content of the cigarettes in the cigarette small box detected based on the orthogonal test table is more accurately attached to the reality, and the calculated moisture retention index of the cigarettes in the cigarette small box is also accurate and is attached to the reality.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below to facilitate understanding of the skilled person.
A method for evaluating the comprehensive moisture retention performance of a cigarette case comprises the following steps,
step 1: selecting, grouping and pre-processing cigarette boxes to be evaluated, and dividing the cigarette boxes from the same box into a processing group; the cigarette small box to be evaluated is sampled by a cigarette production line and is balanced for 48 hours under the environment that the temperature is 22 +/-2 ℃ and the relative humidity is 60 +/-5 percent.
Step 2: two factors which have larger influence on the moisture content of the cigarettes in the small cigarette case under the conditions of environmental temperature and humidity and long storage time are determined as two factors of orthogonal test design.
And step 3: selecting a horizontal parameter of a storage duration factor; the level parameters of the storage duration factor are selected as follows: selecting the horizontal parameter of the storage time factor within 0-672h, wherein the storage time of the cigarette packet is within 8h and comprises 8h, and every 2h is a horizontal parameter; the storage time of the cigarette small box is 24 hours when 8-24 hours, and every 4 hours is a horizontal parameter; the storage time of the cigarette packet is 36h when 24-36h, and every 12h is a horizontal parameter; the storage time of the cigarette small box is 36-120h and comprises 120h, and every 24h is a horizontal parameter; the storage time of the small cigarette box is 264 hours when the storage time is 120-264 hours, and every 48 hours is a horizontal parameter; the storage time of the small cigarette box is 480h when 264-; the storage time of the cigarette small box is 480-672h, and every 96h is a horizontal parameter; the level parameters of the storage duration factor are 21 parameters of 2h, 4h, 6h, 8h, 12h, 16h, 20h, 24h, 36h, 48h, 72h, 96h, 120h, 168h, 216h, 264h, 336h, 408h, 480h, 576h and 672 h.
And 4, step 4: the level parameters of the ambient temperature and humidity condition factors were chosen as follows: the level parameters of the environmental temperature and humidity condition factors are selected when the temperature is 0-40 ℃ and the relative humidity is 30-80%;
the environmental temperature is 5 ℃, the environmental relative humidity is from 30% to 40% in 10% step length, and the two horizontal parameters in the stage are respectively the temperature of 5 ℃, the relative humidity of 30%, the temperature of 5 ℃ and the relative humidity of 40%.
Selecting four horizontal parameters of 15 ℃ of ambient temperature and 30% of relative humidity of the environment in 10% step length from 30% to 60% at the stage; the temperature is 15 ℃ and the relative humidity is 40 percent; the temperature is 15 ℃ and the relative humidity is 50 percent; the temperature is 15 ℃ and the relative humidity is 60 percent.
Selecting four horizontal parameters of 25 ℃ of ambient temperature and 50% of relative humidity of the ambient at 10% step length from 50% to 80% in the stage; the temperature is 25 ℃ and the relative humidity is 60 percent; the temperature is 25 ℃ and the relative humidity is 70 percent; the temperature is 25 ℃ and the relative humidity is 80 percent.
Selecting four horizontal parameters of 35 ℃ and 30% relative humidity respectively at the stage that the relative humidity of the environment is from 30% to 80% in 10% step length when the environment temperature is 35 ℃; the temperature is 35 ℃ and the relative humidity is 40 percent; the temperature is 35 ℃ and the relative humidity is 50 percent; the temperature is 35 ℃ and the relative humidity is 60 percent; the temperature is 35 ℃ and the relative humidity is 70 percent; the temperature is 35 ℃ and the relative humidity is 80 percent. The level parameters of the environmental temperature and humidity condition factors are 16.
And 5: and constructing an orthogonal test according to the two factors and the selected horizontal parameters thereof, and respectively detecting the moisture content of the small cigarette box under each test scheme.
Respectively placing the cigarette boxes in different horizontal parameters of environmental temperature and humidity condition factors in the step 4, and storing the cigarette boxes for 2h, 4h, 6h, 8h, 12h, 16h, 20h, 24h, 36h, 48h, 72h, 96h, 120h, 168h, 216h, 264h, 336h, 408h, 480h, 576h and 672h, wherein the cigarette boxes under each test scheme are cigarette boxes of one treatment group, 1-2 cigarette boxes in each treatment group are used for detecting the initial moisture content, and the 8 th part of physical measurement of the cigarette and filter stick performance according to the national standard GB/T22838.8-2009: the method of moisture content detects the moisture content in sequence, and simultaneously detects the initial moisture content (12.50%) of the cigarette packet, and the detection results are shown in table 1, table 2 and table 3.
TABLE 1 moisture content of cigarette packet after storage for 2h, 4h, 6h, 8h, 12h, 16h and 20h in different storage environments
TABLE 2 moisture content of cigarette packet after 24h, 36h, 48h, 72h, 96h, 120h and 168h storage in different storage environments
TABLE 3 moisture content of cigarette packet after 216h, 264h, 336h, 408h, 480h, 576h and 672h storage in different storage environments
Step 6: according to the moisture content of the cigarette packets in different storage periods in tables 1-3, the moisture retention indexes of the cigarette packets in storage periods of 2h, 4h, 6h, 8h, 12h, 16h, 20h, 24h, 36h, 48h, 72h, 96h, 120h, 168h, 216h, 264h, 336h, 408h, 480h, 576h and 672h are calculated according to the following formula: and R2 is 0.041, and the smaller the value is, the better the moisture retention performance of the cigarette packet at the time node is.
In the formula, R2 is the moisture retention index of the cigarette packet with the storage time of 2h, X0 is the initial moisture content of the cigarette packet, and X1 and X2 … X16 are the moisture contents of the cigarette packet when stored in the selected storage environment for 2h, 4h, 6h, 8h, 12h, 16h, 20h, 24h, 36h, 48h, 72h, 96h, 120h, 168h, 216h, 264h, 336h, 408h, 480h, 576h and 672 h.
TABLE 4 summary table of moisture retention index of cigarette packet
| Length of storage time | Index of moisture retention | Length of storage time | Index of moisture retention | Length of storage time | Index of |
| 2h | 0.041 | 24h | 0.121 | 216h | 0.634 |
| 4h | 0.049 | 36h | 0.149 | 264h | 0.689 |
| 6h | 0.056 | 48h | 0.191 | 336h | 0.725 |
| 8h | 0.068 | 72h | 0.257 | 408h | 0.759 |
| 12h | 0.079 | 96h | 0.311 | 480h | 0.794 |
| 16h | 0.087 | 120h | 0.395 | 576h | 0.812 |
| 20h | 0.096 | 168h | 0.521 | 672h | 0.819 |
And drawing a moisture retention curve of the cigarette packet according to the table 4, and drawing the moisture retention curve of the cigarette packet by taking the storage time sequence as an abscissa and the moisture retention index as an ordinate according to the moisture retention indexes of the cigarette packets in different storage times. As shown in figure 1, the curve is stable, which indicates that the smaller the change of the moisture retention performance of the cigarette packet along with the time, the curve is close to the zero point of the abscissa, and indicates that the comprehensive moisture retention performance of the cigarette packets of the batch is better.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (8)
1. A method for evaluating the comprehensive moisture retention performance of a cigarette case is characterized by comprising the following steps: the method for evaluating the comprehensive moisture retention performance of the cigarette small box comprises the following steps of 1: selecting, grouping and pre-processing cigarette boxes to be evaluated, and dividing the cigarette boxes from the same box into a processing group; step 2: determining two factors which have great influence on the moisture content of the cigarettes in the small cigarette case under the environmental temperature and humidity conditions and the storage time as two factors of orthogonal test design; and step 3: selecting a horizontal parameter of a storage duration factor; and 4, step 4: selecting level parameters of environmental temperature and humidity condition factors; and 5: constructing an orthogonal test table according to the two factors and the selected horizontal parameters thereof, and respectively detecting the moisture content of the small cigarette box under each test scheme; step 6: calculating the moisture retention index of cigarettes in the cigarette small box according to the orthogonal test table; and 7: drawing a moisture retention curve; and 8: and (4) evaluating the comprehensive moisture retention performance of the cigarette case.
2. The method for evaluating the comprehensive moisture retention performance of the cigarette small box according to claim 1, which is characterized in that: the level parameters of the storage duration factor in the step 3 are selected as follows: selecting the horizontal parameter of the storage time factor within 0-672h, wherein the storage time of the cigarette packet is within 8h and comprises 8h, and every 2h is a horizontal parameter; the storage time of the cigarette small box is 24 hours when 8-24 hours, and every 4 hours is a horizontal parameter; the storage time of the cigarette packet is 36h when 24-36h, and every 12h is a horizontal parameter; the storage time of the cigarette small box is 36-120h and comprises 120h, and every 24h is a horizontal parameter; the storage time of the small cigarette box is 264 hours when the storage time is 120-264 hours, and every 48 hours is a horizontal parameter; the storage time of the small cigarette box is 480h when 264-; the storage time of the cigarette small box is 480-672h, and every 96h is a horizontal parameter.
3. The method for evaluating the comprehensive moisture retention performance of the cigarette packet according to claim 1 or 2, wherein the method comprises the following steps: and 4, selecting the level parameters of the environmental temperature and humidity condition factors as follows: the level parameters of the environmental temperature and humidity condition factors are selected when the temperature is 0-40 ℃ and the relative humidity is 30-80%; selecting the environment temperature of 0-10 ℃, and the relative humidity of the environment is from 30% to 40% in 5-10% step length; selecting the environment temperature of 10-20 ℃, and the relative humidity of the environment is from 30% to 60% in 5-15% step length; selecting the relative humidity of the environment from 50% to 80% in 5-15% step length when the environment temperature is 20-30 ℃; the relative humidity of the environment is selected from 30% to 80% in 5-15% steps when the ambient temperature is 30-40 deg.C.
4. The method for evaluating the comprehensive moisture retention performance of the cigarette small box according to claim 3, wherein the method comprises the following steps: in the step 1, if the cigarette small box to be evaluated is sampled in a cigarette production line, balancing for 48 hours in an environment with the temperature of 22 +/-2 ℃ and the relative humidity of 60 +/-5%; if the small cigarette box to be evaluated is purchased in the market, the balance is required to be carried out for 30 days under the environment that the temperature is 22 +/-2 ℃ and the relative humidity is 60 +/-5%, and the small cigarette box to be evaluated, which is completely packaged and has no indentation, crease or obvious scratch, is selected after the balance is finished.
5. The method for evaluating the comprehensive moisture retention performance of the cigarette small box according to claim 4, wherein the method comprises the following steps: step 5, constructing an orthogonal test table according to the two factors and the selected horizontal parameters thereof, and respectively detecting the moisture content of the cigarettes in the small cigarette box under each test scheme, wherein the detection method is according to the 8 th part of the measurement of the physical properties of the cigarettes and the filter sticks of GB/T22838.8-2009: water content "was carried out.
6. The method for evaluating the comprehensive moisture retention performance of the cigarette small box according to claim 5, wherein the method comprises the following steps: and 6, calculating the moisture retention index according to the contents of the orthogonal test table, wherein the moisture retention index refers to the mean value of the absolute change rate of the moisture content of the cigarettes under the conditions of fixed storage time length, different storage environment temperatures and different humidity, and is calculated according to the following formula:
in the formula, Rt is the moisture retention index of the cigarette packet to be evaluated at a fixed storage time t, X0 is the initial moisture content of the cigarette packet, and X1 and X2 … Xn are the moisture contents of the cigarette packet at the storage time t in a specific storage environment.
7. The method for evaluating the comprehensive moisture retention performance of the cigarette small box according to claim 6, which is characterized in that: and 7: and drawing a moisture retention curve, namely drawing the moisture retention curve of the cigarette packet by taking the storage time sequence as an abscissa and the moisture retention index as an ordinate according to the moisture retention indexes of the cigarette packet at different storage times.
8. The method for evaluating the comprehensive moisture retention performance of the cigarette small box according to claim 7, which is characterized in that: the method for evaluating the comprehensive moisture retention performance of the small cigarette box comprises the following steps: the more stable the moisture retention curve is, the smaller the change of the moisture retention performance of the cigarette case along with time is, the closer the moisture retention curve is to the zero point of the abscissa, and the better the comprehensive moisture retention performance of the cigarette case is.
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Application publication date: 20201218 |