Detection Method for Moisture Retention Performance of Inner Lining Paper of Cigarette Case

Abstract

The present invention relates to the technical field of inner lining paper detection, and discloses a method for detecting the moisture retention performance of cigarette case inner lining paper, which comprises the following steps: S1, detecting the sealing performance of the test box; S2, selecting a plurality of identical detection devices, putting cigarettes in the test boxes of each detection device, and sealing each test box with cigarette case inner lining paper respectively; S3, placing the sealed test boxes in an environment with a temperature of 0-100 °C and a relative humidity of 30-95% RH for testing; S4, continuing the test until the preset time, detecting the temperature and humidity in the test boxes through a temperature and humidity detector, continuously recording the temperature and humidity in the test boxes, and drawing a temperature and humidity change curve graph in the test boxes; S5, judging the moisture retention performance of the cigarette case inner lining paper according to the drawn temperature and humidity change curve graph. This detection method can be carried out in different environments, is not easily interfered by other factors during the test, has accurate test results, and will not damage the cigarettes during the test process, thus avoiding cigarette waste.

Description

Technical Field

[0001] The present invention relates to the technical field of inner lining paper detection, and particularly to a method for detecting the moisture retention performance of cigarette box inner lining paper. Background Art

[0002] At present, with the development of the market economy, cigarette consumers have higher and higher requirements for cigarette quality. The smoking quality of cigarettes, such as fragrance and aroma, is directly related to the moisture content of cigarettes. There is generally a standard moisture value during cigarette production and packaging. However, with the change of storage time and external environment, the moisture content of cigarettes in the cigarette box gradually changes, and the cigarettes may become dry or damp, thus affecting the smoking experience. In response to this, various cigarette box inner lining papers with moisture retention, moisturizing, and fragrance preservation functions have emerged on the market. How to effectively detect whether the cigarette box inner lining paper can maintain a constant moisture content of cigarettes is the research direction of the market.

[0003] At present, the testing of the moisture retention performance of cigarette box inner lining paper in the tobacco industry is mainly divided into two types: one is the direct method, which reflects the moisture permeability and air permeability of the cigarette box inner lining paper by testing the moisture permeability (GB / T2679.2 - 2015) and air permeability (GB / T458 - 2008) of the cigarette box inner lining paper. However, the air permeability test is carried out under a pressure difference condition, and it cannot reflect the moisture retention performance of the inner lining paper for cigarette storage under different natural non-pressure difference conditions. During the moisture permeability test, one side of the paper is in a high-humidity environment, and a desiccant is placed on the other side. This method is simple and widely applicable, but in terms of details, it does not consider the multi-layer process structure of the inner lining paper and the possible moisture retention coating on the inner surface of the paper, as well as the moisture retention performance of the inner lining paper in the case where the cigarette body contains moisture.

[0004] The other is the indirect method, which adds other packaging materials to the cigarette box inner lining paper, packs the cigarettes according to the actual packaging method, and then places them in a high-humidity or dry environment for simulation testing, and samples periodically. By comparing the moisture content of the cigarettes before and after the test, the moisture retention performance of the cigarette inner lining paper is judged. However, this method requires preparing a large number of cigarette samples, which is time-consuming, labor-consuming, and material-consuming. The moisture difference of the cigarette samples and the difference in the sample preparation process also have a relatively large impact on the test results. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for detecting the moisture retention performance of cigarette box inner lining paper, so as to solve the technical problems of limited test environment, complex test methods, and inaccurate test results when testing the moisture retention performance of cigarette box inner lining paper at the present stage.

[0006] To achieve the above purpose, the present invention provides a method for detecting the moisture retention performance of cigarette box inner lining paper. The detection method is carried out by a detection device, and the detection device includes a test box and a temperature and humidity detector. The detection method includes the following steps:

[0007] S1. Detect the sealing performance of the test box;

[0008] S2. Select several identical detection devices, put cigarettes in the test boxes of each detection device, and seal each test box with cigarette box inner lining paper;

[0009] S3. Place the sealed test boxes in an environment with a temperature of 0 - 100 °C and a relative humidity of 30 - 95% RH for testing;

[0010] S4. The test continues until the preset time. Detect the temperature and humidity inside the test box through a temperature and humidity detector, continuously record the temperature and humidity inside the test box, and draw a curve graph of the temperature and humidity change inside the test box;

[0011] S5. Judge the moisture retention performance of the cigarette box inner lining paper according to the drawn curve graph of the temperature and humidity change.

[0012] Optionally, before the step S2, it further includes the step of measuring and recording the weights of the cigarette box inner lining paper and the cigarettes before detection.

[0013] Optionally, in the step S2, twenty cigarettes are placed in the test box of each detection device.

[0014] Optionally, in the step S2, the cutting area of the cigarette box inner lining paper is the same as the area of the packaging inner lining paper of the cigarettes.

[0015] Optionally, in the step S3, the sealed test boxes are placed in a constant temperature and humidity chamber with a temperature of 23 °C and a relative humidity of 50% RH for testing.

[0016] Optionally, two of the detection devices are selected, and the cigarette box inner lining paper includes a ceramic-containing inner lining paper and a ceramic-free inner lining paper.

[0017] Optionally, before the step S5, it further includes the step of measuring and recording the weights of the cigarette box inner lining paper and the cigarettes after detection.

[0018] Compared with the prior art, the beneficial effect of the method for detecting the moisture retention performance of a cigarette box inner lining paper according to an embodiment of the present invention is as follows: The method for detecting the moisture retention performance of a cigarette box inner lining paper according to an embodiment of the present invention uses the cigarette box inner lining paper to seal the opening of a test box containing cigarettes, places the test box in a high-humidity or dry environmental condition for a period of time, and regularly records the change in the relative humidity inside the test box to obtain the basic data of the relative humidity change of the cigarette box inner lining paper, thereby judging the moisture retention performance of the cigarette box inner lining paper. This detection method can be carried out in a high-humidity environment or a dry environment, is not interfered by other factors during testing, has accurate test results, and will not damage the cigarettes during the testing process, avoiding cigarette waste. Brief Description of the Drawings

[0019] Figure 1 It is a schematic flow chart of the method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to an embodiment of the present invention;

[0020] Figure 2 It is an exploded view of the detection device for the inner lining paper of a cigarette case according to an embodiment of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the detection device for the inner lining paper of a cigarette case in an embodiment of the present invention;

[0022] Figure 4 It is a change curve graph of the relative humidity of the inner lining paper of a cigarette case according to an embodiment of the present invention.

[0023] In the figure, 100 is the detection device; 1 is the test box; 11 is the base; 11a is the pillar; 12 is the sealing gasket; 13 is the groove; 13a is the tank body; 14 is the cover plate; 2 is the temperature and humidity detector; 21 is the temperature and humidity sensor; 22 is the data output port; 3 is the inner lining paper of the cigarette case. Specific Embodiments

[0024] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device and element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] As Figure 1 shown, a method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to a preferred embodiment of an embodiment of the present invention is carried out through a detection device. The detection device includes a test box and a temperature and humidity detector. The detection method specifically includes the following steps:

[0027] S1. Detect the sealing performance of the test box;

[0028] S2. Select a number of identical detection devices, put cigarettes in the test box of each detection device, and seal each test box with the inner lining paper of the cigarette case;

[0029] S3. Place the sealed test box in an environment with a temperature of 0 - 100 °C and a relative humidity of 30 - 95% RH for testing;

[0030] S4. The test continues until the preset time. Detect the temperature and humidity in the test box through the temperature and humidity detector, continuously record the temperature and humidity in the test box, and draw a change curve graph of the temperature and humidity in the test box;

[0031] S5. Judge the moisture retention performance of the cigarette box inner lining paper according to the drawn temperature and humidity change curve graph.

[0032] Based on the above technical solution, before testing the moisture retention performance of the cigarette box inner lining paper, first detect the sealing performance of the test box. Seal the opening of the test box with an aluminum-plastic composite film, place it at a temperature of 24°C and a relative humidity of 90% RH for 5 consecutive days, and observe the change in relative humidity inside the box; then select several identical detection devices, put cigarettes in the test boxes of each detection device, and seal each test box with the cigarette box inner lining paper; then place the sealed test boxes in an environment with a temperature of 0 - 100°C and a relative humidity of 30 - 95% RH for testing; the test lasts for 10 days, detect the temperature and humidity inside the test box through a temperature and humidity detector, continuously record the temperature and humidity inside the test box, and draw a temperature and humidity change curve graph of the inside of the test box; finally, judge the moisture retention performance of the cigarette box inner lining paper according to the drawn temperature and humidity change curve graph.

[0033] Specifically, in some embodiments, the detection method is carried out through the detection device 100, as Figures 2 - 3 shown, the detection device 100 includes a test box 1 and a temperature and humidity detector 2. The test box 1 has a base 11 and a cover plate 14 with through holes. A groove 13 for placing cigarettes is provided on the upper surface of the base 11. The cover plate 14 can be covered on the upper surface of the base 11. The temperature and humidity detector 2 includes a temperature and humidity sensor 21. The temperature and humidity sensor 21 is arranged in the groove 13 and divides the groove 13 into two symmetric troughs 13a. The temperature and humidity sensor 21 is used to collect the temperature and humidity in the groove 13. To improve the sealing performance during testing, a sealing gasket 12 is also provided between the base 11 and the cover plate 14. The temperature and humidity sensor 21 is arranged at the center position of the width of the groove 13 and divides the groove 13 into two symmetric troughs 13a on average. The cover plate 14 is detachably covered on the upper surface of the base 11. The cover plate 14 and the base 11 are fixedly connected by bolts to prevent the exchange of internal and external water vapor and prevent the water vapor from affecting the test results. In addition, a data output port 22 for outputting temperature and humidity data is provided on the temperature and humidity detector 2. The data output port 22 is connected to an external display, and the temperature and humidity data are transmitted to the display in real time during the test process, which is convenient for the test personnel to record. In this embodiment, several support columns 11a are provided at the bottom of the base 11, and the support columns 11a support the test box 1 at a certain height, which is better for assembling with the temperature and humidity detector 2.

[0034] When using the detection device 100, ten cigarettes are placed in each of the two trough bodies 13a of the groove 13, and the tobacco ends of the cigarettes are arranged facing the temperature and humidity sensor 21. First, a sealing gasket 12 is placed at the opening of the test box 1, and then the groove 13 is covered with the inner cigarette box paper 3. The inner cigarette box paper 3 is arranged between the sealing gasket 12 and the cover plate 14. Then, the cover plate 14 is used to cover the base 11, and the cover plate 14 and the base 11 are fastened with bolts. Finally, the detection device 100 is placed in the test environment for real-time testing to judge the moisture retention performance of the inner cigarette box paper 3.

[0035] Preferably, in this embodiment, in order to avoid quality errors between different inner cigarette box papers 3 and cigarettes, before putting cigarettes in the test box 1 and sealing them with the inner cigarette box paper 3, the weights of the inner cigarette box paper 3 and the cigarettes are measured and recorded, and only the inner cigarette box paper 3 and cigarettes with masses within the allowable error range are selected for testing.

[0036] Furthermore, in this embodiment, twenty cigarettes are placed in the test box 1 of each detection device 100 to simulate the actual situation of a box of cigarettes containing twenty cigarettes, so that the test can more directly reflect the moisture retention performance of the inner cigarette box paper 3 when packaging cigarettes.

[0037] For the same purpose, when sealing the test box 1 with the inner cigarette box paper 3, the cut area of the inner cigarette box paper 3 is the same as the area of the packaging inner paper of the actual cigarette box, so that the test can more truly reflect the moisture retention performance of the inner cigarette box paper 3 when packaging cigarettes.

[0038] Specifically, in this embodiment, the sealed test box 1 is placed in a thermostatic and humidistatic chamber for testing. The temperature of the thermostatic and humidistatic chamber is set to 23 °C and the relative humidity is 50% RH. During the test, two detection devices are selected, and the test boxes 1 of the two detection devices 100 are sealed with the inner cigarette box paper with ceramic and the inner cigarette box paper without ceramic respectively.

[0039] Even further, in this embodiment, after drawing the curve graph of the temperature and humidity changes in the test box 1, the weights of the inner cigarette box paper 3 and the cigarettes are measured and recorded, and by comparing the moisture content of the inner cigarette box paper and the cigarettes, it is further verified whether the inner cigarette box paper has moisture retention performance.

[0040] Specifically, in some embodiments, such as Figure 4As shown, when the initial moisture content of the inner lining paper of the cigarette case and the moisture content of the cigarettes are basically the same, the moisture retention performance test of the inner lining paper of the cigarette case is started under the condition of 50% humidity. After a ten-day test cycle, it is found that: in the initial stage, the humidity in the two test boxes 1 gradually rises as the cigarettes and the inner lining paper 3 of the cigarette case release moisture. After three days of the test for the non-ceramic inner lining paper, due to the moisture permeability of the non-ceramic inner lining paper, the moisture in the test box 1 is released outward, so the humidity in the test box 1 shows an inflection point and starts to decline; after five days of the test for the ceramic-containing inner lining paper, the humidity in the test box 1 tends to be stable. By the end of the test, the humidity in the test box 1 is maintained at 63.6%. It can be judged from the humidity change curve graph that the moisture retention performance of the cigarette case inner lining paper containing ceramic is significantly better than that of the ordinary cigarette case inner lining paper without ceramic, that is, the water vapor permeability of the cigarette case inner lining paper containing ceramic is significantly better than that of the ordinary cigarette case inner lining paper.

[0041] The working process of the present invention is as follows: First, the tightness of the test box is detected, and then several identical detection devices are selected. Cigarettes are placed in the test boxes of each detection device, and each test box is sealed with the inner lining paper of the cigarette case; then the sealed test boxes are placed in an environment with a temperature of 0-100 °C and a relative humidity of 30-95% RH for testing; the test continues until the preset time, the temperature and humidity in the test box are detected by a temperature and humidity detector, the temperature and humidity in the test box are continuously recorded, and a temperature and humidity change curve graph of the test box is drawn; finally, the moisture retention performance of the inner lining paper of the cigarette case is judged according to the drawn temperature and humidity change curve graph.

[0042] In summary, the embodiment of the present invention provides a method for detecting the moisture retention performance of the inner lining paper of a cigarette case. This detection method can be carried out in a high-humidity environment or a dry environment. During the test, it is not interfered by other factors, the test results are accurate, and the cigarettes will not be damaged during the test process, avoiding cigarette waste.

[0043] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A method for detecting the moisture retention performance of cigarette box inner lining paper, characterized in that, The detection method is carried out by a detection device, the detection device includes a test box and a temperature and humidity detector. The test box has a base and a cover plate with through holes. A groove for placing cigarettes is formed on the upper surface of the base. The cover plate can be covered on the upper surface of the base. The temperature and humidity detector includes a temperature and humidity sensor. The temperature and humidity sensor is arranged in the groove and divides the groove into two symmetric troughs. A sealing gasket is also arranged between the base and the cover plate; The detection method includes the following steps: S1. Detect the sealing performance of the test box; S2. Select a number of identical detection devices, put cigarettes in the test boxes of each detection device, and seal each test box with the inner lining paper of the cigarette box. The cutting area of the inner lining paper of the cigarette box is the same as the area of the inner lining paper of the cigarette package; S3. Place the sealed test boxes in an environment with a temperature of 0 - 100 °C and a relative humidity of 30 - 95% RH for testing; S4. The test continues until the preset time. Detect the temperature and humidity in the test box through the temperature and humidity detector, continuously record the temperature and humidity in the test box, and draw a curve graph of the temperature and humidity change in the test box; S5. Judge the moisture retention performance of the inner lining paper of the cigarette box according to the drawn curve graph of the temperature and humidity change.

2. The method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to claim 1, characterized in that, Before the step S2, there is also a step: Measure and record the weights of the inner lining paper of the cigarette box and the cigarette before detection.

3. The method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to claim 1, wherein, In the step S2, twenty cigarettes are placed in the test box of each detection device.

4. The method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to claim 1, wherein In the step S3, place the sealed test boxes in a constant temperature and humidity chamber with a temperature of 23 °C and a relative humidity of 50% RH for testing.

5. The method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to claim 1, wherein, Select two of the detection devices. The inner lining paper of the cigarette box includes a ceramic-containing inner lining paper and a non-ceramic inner lining paper.

6. The method for detecting the moisture retention performance of the inner lining paper of a cigarette case according to claim 1, wherein, Before the step S5, there is also a step: Measure and record the weights of the inner lining paper of the cigarette box and the cigarette after detection.

Images