A testing system and method for the lip adhesion of cigarette tipping paper

Abstract

The present invention belongs to the technical field of analysis and detection, and particularly relates to a testing system and a testing method for the lip-adherence of cigarette tipping paper. The testing system comprises: artificial lips, and a testing device; wherein the artificial lips are silicone blocks; the testing device comprises: a friction meter testing platform (1), a force sensor (2), a rigid rope (4), a pulley (6), a pulley bracket, and a sample loading module (9). The present invention provides a testing device and a testing method for the lip-adherence of cigarette tipping paper, which can objectively and accurately detect the lip-adherence of cigarette tipping paper, and can effectively avoid the traditional vague concepts of sticky lips and damage to lips obtained by sensory evaluation, and avoid the disadvantages of large influence of subjective factors, large differences in smoking results, and harm to human health.

Description

Technical Field

[0001] The invention belongs to the technical field of analysis and detection, and particularly relates to a testing system and a testing method for the lip-adhesive force of cigarette tipping paper. Background Art

[0002] Cigarette filters are mainly composed of three layers: acetate fiber, molding paper, and tipping paper. Among them, tipping paper, also known as tipping paper, is used to wrap the outside of the filter and bond the filter to the end of the cigarette rod. Tipping paper is a kind of decorative paper obtained by printing, coating and other processing of the tipping base paper. It is often cork-colored or opaque white and has the function of improving the appearance. The tipping paper is in direct contact with the smoker's lips. Generally, only coatings or inks are used for printing on the tipping paper. When the weather is dry, when consumers smoke cigarettes, a small amount of saliva may wet the tipping paper, and it slowly dries during the smoking process. The saliva protein remaining on the lips will have an adhesive effect on the tipping paper, causing the tipping paper on the filter to stick to the lip skin, and even stick to the lips to cause tearing and bleeding. After smoking, the filter cannot be spit out smoothly, which seriously affects the cigarette consumption experience.

[0003] At present, there is no measurement of the lip-sticking force of cigarette tipping paper at home and abroad. Various Chinese tobacco companies and tobacco auxiliary material manufacturers mostly use manual sensory evaluation to determine whether the cigarette tipping paper is sticky to the lips. There is no relevant standard promulgated, resulting in large differences in the test and judgment results. In order to standardize the quality of tobacco auxiliary materials and increase the consumer comfort of cigarettes, and reduce the use rate of cigarette tipping paper with lip-sticking force, it is necessary to accurately measure and judge the lip-sticking force of cigarette tipping paper, and at the same time establish corresponding objective screening test methods and test equipment. Summary of the invention

[0004] The present invention is proposed to solve the above-mentioned problems.

[0005] The present invention provides a testing system for the lip adhesion of cigarette tipping paper, the testing system comprising: artificial lips, testing equipment;

[0006] Wherein, the artificial lips are silicone blocks or 3M low-viscosity tape;

[0007] The testing equipment includes: a friction test platform 1, a force sensor 2, a rigid rope 4, a pulley 6, a pulley bracket, and a sample loading module 9.

[0008] Wherein, a pulley 6 is installed on the pulley bracket, and the rigid rope 4 slides in the pulley 6. The rigid rope 4 is L-shaped, with one end in the horizontal direction connected to the force sensor 2, and the other end in the vertical direction connected to the sample loading module 9;

[0009] The artificial lips are located directly below the sample loading module 9 and the two are in contact at the testing position;

[0010] The friction resistance test software is installed in the friction meter test platform 1, and the friction meter test platform 1 is in communication connection with the force sensor 2. The friction meter test platform 1 controls the movement of the rigid rope 4 and records the change of the force on the rigid rope 4 with time and / or position.

[0011] The friction resistance test software is commercial software: MAP software full name: MAP4.exe, purchased from Thwing-Albert Company.

[0012] The artificial lips can be selected from silicone blocks or 3M low-viscosity tape.

[0013] Preferably, the test system further comprises: artificial saliva, which is sprayed on the test surface of the artificial lips during the test. In order to simulate the human body more accurately, artificial saliva at 36-37 degrees Celsius can be used.

[0014] Preferably, the artificial saliva comprises sodium chloride, potassium chloride, calcium chloride, sodium dihydrogen phosphate, magnesium chloride, urea, glucose, mucin, amylase, acid phosphatase and lysozyme.

[0015] Preferably, the artificial saliva contains 1.40mmol / L sodium chloride, 0.5mmol / L potassium chloride, 0.1mmol / L calcium chloride, 0.15mmol / L sodium dihydrogen phosphate, 0.025mmol / L magnesium chloride, 0.09mmol / L urea, 0.2mmol / L glucose, 2.7mmol / L bovine submandibular gland salivary mucin, 2.5units / mL amylase, 0.004units / mL acid phosphatase, and 0.7units / mL lysozyme.

[0016] Preferably, the artificial lip is detachably mounted on the artificial lip support, and a level adjustment component is provided under the artificial lip support. The level adjustment component can use a level adjustment nut to ensure that the artificial lip is placed horizontally.

[0017] Preferably, the two ends of the rigid rope 4 are connected to the force sensor 2 and the sample loading module 9 respectively through movable connecting parts. The movable connecting part can be a clasp. The use of the movable connecting part here can balance the force, ensuring that the force of the rigid rope 4 on the force sensor 2 and the sample loading module 9 acts evenly on the entire surface of the contact surface. The movable connecting part can be a clasp.

[0018] If the rigid rope 4 and the sample loading module 9 are directly connected without any movable connecting parts, when the rigid rope 4 pulls the sample loading module 9 away from the artificial lips, the sample loading module 9 and the artificial lips may begin to separate at a corner of the contact surface between the two, resulting in inaccurate mechanical test results and poor repeatability.

[0019] Preferably, the sample loading module 9 is a counterweight block with an elastic pad fixed at the lower end.

[0020] The elastic pad can be a rubber pad or a silicone block, and the counterweight can be a metal block.

[0021] A second aspect of the present invention provides a method for testing the lip adhesion of cigarette tipping paper, which is performed using the testing system described in the first aspect, and the testing method comprises the following steps:

[0022] Attach the tipping paper sample to be tested to the lower end of the sample loading module 9, then connect the sample loading module 9 to the rigid rope 4, and clear the load force on the rigid rope 4 at this time;

[0023] Placing the artificial lips directly below the sample loading module 9;

[0024] The friction meter test platform 1 controls the sample loading module 9 to descend, so that the artificial lip contacts the tipping paper sample to be tested, and the contact area between the two is 1.5 cm*1.5 cm. After the contact is completed, the rigid rope 4 is controlled to pull the sample loading module 9 away from the artificial lip until the moment of separation. The friction meter test platform 1 controls the movement of the rigid rope 4 and records the maximum force on the rigid rope 4 during the test, and the force is recorded as the lip sticking force, and the value is F;

[0025] According to the lip sticking force, the lip sticking force level and lip sticking performance are divided as follows:

[0026] When 0N≤F<0.2N, the lip sticking force level is determined to be level 0, and the lip sticking performance is non-lip sticking;

[0027] When 0.2N≤F<0.3N, the lip sticking force level is determined to be level 1, and the lip sticking is mild;

[0028] When 0.3N≤F<0.5N, the lip sticking force grade result is determined to be level 2, and the lip sticking performance is moderate lip sticking;

[0029] When 0.5N≤F<0.6N, the lip sticking force level is determined to be level 3, and the lip sticking is severe;

[0030] When F ≥ 0.6N, the lip sticking force grade result is determined to be level 4, and the lip sticking performance is severe lip sticking.

[0031] During the test, the maximum force on the rigid rope 4 is the force at the moment when the tipping paper and the artificial lip are separated; the force at this moment is the maximum, which is called the lip sticking force.

[0032] Alternatively, during the test, the friction meter test platform 1 records the force on the rigid rope 4 as a function of time and / or position, and naturally marks the peak value of the force, which is the lip sticking force.

[0033] Since some tipping papers are perforated, when the tipping paper is cut to a width of 1.5 cm, the perforated area will be avoided, and the test result will be more accurate.

[0034] Preferably, the friction meter test platform 1 controls the running speed of the rigid rope 4 to be 40-60 mm / min, and the contact time between the artificial lips and the tipping paper sample to be tested is 4-6 s.

[0035] More preferably, the friction meter test platform 1 controls the running speed of the rigid rope 4 to be 50 mm / min, and the contact time between the artificial lips and the tipping paper sample to be tested is 5-6 s.

[0036] Preferably, the method for attaching the tipping paper sample to be tested to the lower end of the loading module 9 is: adhering the tipping paper sample to be tested to the side of the counterweight block of the loading module 9 so that the middle of the tipping paper to be tested is completely in contact with the elastic pad at the lower end of the loading module 9.

[0037] During the test, first adhere one side of the tipping paper sample to be tested to one side of the counterweight of the sample loading module 9, then manually tighten the tipping paper sample to be tested so that its middle part is completely fitted with the elastic pad, and then adhere the other side of the tipping paper sample to be tested to the other side of the counterweight of the sample loading module 9. Adhesive is not used to adhere the tipping paper to be tested at the contact point with the elastic pad. The reasons are: 1. The surface of the tipping paper to be tested is uneven after being adhered with adhesive, resulting in an uneven contact surface when in contact with the artificial lips, thus affecting the test accuracy; 2. After the adhesive is adhered to the elastic pad, the weight changes greatly, affecting the mechanical test value; 3. If the adhesive is adhered to the elastic pad, it is inconvenient to replace the cigarette tipping paper. Each time it is not cleaned properly, it will affect the next test, thereby affecting the test results.

[0038] Preferably, artificial saliva is sprayed on the artificial lips before the artificial lips come into contact with the tipping paper sample to be tested.

[0039] Preferably, the movable cover support 12 is designed in a drawer-type process, with the movable cover 10 in the middle, so as to facilitate the disassembly and assembly of the artificial lips.

[0040] In the present invention, the tipping paper for cigarettes is preferably placed on a cutting board for cutting, and the width of the tipping paper sample to be tested after cutting is equal to the width of the sample loading module 9 of the test equipment. The upper surface area of ​​the artificial lip sample block must also be consistent with the bottom area of ​​the sample loading module 9. Gloves are worn during the operation to avoid direct contact between hands and the test sample.

[0041] The above technical solutions can be freely combined under the premise of no contradiction.

[0042] The present invention has the following beneficial effects:

[0043] 1. The present invention provides a testing device and a testing method for the lip-adhesive force of cigarette tipping paper, which can objectively and accurately test the lip-adhesive force of cigarette tipping paper, and can effectively avoid the traditional vague concepts of sticky lips and damage to lips obtained by sensory evaluation, and avoid the disadvantages of large influence of subjective factors, large differences in smoking results, and harm to human health.

[0044] 2. The present invention makes the test sample fully contact with the artificial lips through the normal operation of the test equipment, and obtains the lip adhesion force, which has good repeatability and good consistency with the artificial sensory evaluation, so the test accuracy is high. The test method is simple and feasible, and has certain advantages in material access, quality control, and product upgrades in the tobacco industry.

[0045] 3. The method of the present invention is fast, objective, efficient, has good repeatability, is simple to operate, greatly saves detection costs, improves efficiency, and is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is the main view of the test equipment.

[0047] Figure 2 This is the right side view of the test equipment.

[0048] Figure 3 This is the rear view of the test equipment.

[0049] Figure 4 This is the main interface of the MAP software for this test.

[0050] Figure 5 This is the detailed parameter interface diagram of the MAP software test for this test.

[0051] Among them, 1 is a friction meter test platform, 2 is a force sensor, 3 is a sensor transmission bracket, 4 is a rigid rope, 5 is an L-shaped pulley support arm, 6 is a pulley, 7 is a pulley fixing shaft, 8 is a sample loading module hook, 9 is a sample loading module, 10 is a movable cover plate, 11 is a bottom plate horizontal nut, 12 is a movable cover plate bracket, and 13 is a bottom plate. DETAILED DESCRIPTION

[0052] The content of the present invention is further explained below through specific implementation examples.

[0053] Example 1

[0054] like Figures 1 to 5As shown, a testing system for the lip adhesion of cigarette tipping paper comprises: artificial lips, testing equipment, and artificial saliva.

[0055] During the test, the artificial saliva is sprayed on the test surface of the artificial lips.

[0056] The artificial lips are made of 3M low-viscosity tape, one side of which is high-viscosity and the other side is low-viscosity. The low-viscosity side is in contact with the tipping paper sample to be tested. The manufacturer is 3M China Co., Ltd. The testing equipment includes:

[0057] Friction meter test platform 1, force sensor 2, rigid rope 4, pulley 6, pulley bracket, sample loading module 9.

[0058] The rigid rope 4 is a 0.2 mm ultra-fine steel wire rope.

[0059] The force sensor 2 is mounted on the sensor transmission bracket 3 .

[0060] The pulley bracket is provided with a pulley 6, the rigid rope 4 slides in the pulley 6, and both ends of the rigid rope 4 are connected to the force sensor 2 and the sample loading module 9 through clamp rings, respectively.

[0061] The artificial lips are located directly below the sample loading module 9 and the two are in contact at the test position. The artificial lips are mounted on the artificial lip support, for example, the artificial lips are clamped and fixed on the artificial lip support or are pasted on the artificial lip support.

[0062] MAP software is installed in the friction test platform 1. The friction test platform 1 includes: friction tester host, friction tester display, friction tester key, emergency button, friction tester RS232 serial port, friction tester USB interface, friction tester power switch, friction tester power jack, sensor interface. Several friction tester level nuts are installed at the four corners of the friction test platform 1 to ensure the level of the tester.

[0063] The friction meter test platform 1 is connected to the force sensor 2 through the sensor interface communication, and the friction meter test platform 1 analyzes and processes the data transmitted by the force sensor 2 through the MAP software. The friction meter test platform 1 controls the movement of the rigid rope 4 through the MAP software and records the changes of the force on the rigid rope 4 with time and / or position.

[0064] The sample loading module 9 is a metal block with a rubber pad fixed at the lower end, and a sample loading module hook 8 is provided at the upper end of the sample loading module 9 for connecting with the steel wire rope.

[0065] The specific design of the artificial lip support is as follows, which includes: a detachable movable cover support 12, on which a matching movable cover 10 is provided; the movable cover support 12 is detachably arranged on the bottom plate 13, for example, by threaded connection, plug-in, etc. Bottom plate horizontal nuts 11 are installed under the four corners of the bottom plate 13 to ensure the horizontality of the device. The movable cover support 12 includes: a bottom plate with screw holes, 4 load-bearing shafts, and a top movable cover plate surface. The movable cover 10 can also be pulled out and loaded from the movable cover support 12 at any time to facilitate the replacement of artificial lips.

[0066] The specific design of the pulley bracket is as follows, which includes: a pulley fixing shaft 7, and two L-shaped pulley support arms 5 for horizontally fixing the pulley fixing shaft 7. A low-damping pulley 6 is detachably mounted on the pulley fixing shaft 7 so that the ultra-fine steel wire rope has a fixed track to run. The pulley bracket is installed on the friction instrument test platform 1 through a threaded connection.

[0067] The friction meter test platform 1 is basically in the shape of a rectangular parallelepiped. The pulley bracket is installed above the short side of the friction meter test platform 1. The force sensor 2 is installed above the long side of the friction meter test platform 1. The wire rope is L-shaped, and the L-shaped turning point is realized by the pulley 6. The wire rope passes through the force sensor 2 and the pulley 6 horizontally, and is vertically connected to the sample loading module 9 downward. The wire rope can be controlled to move at a certain speed through the MAP software in the friction meter test platform 1.

[0068] The friction meter test platform 1 can use an existing friction meter test platform, and the method of installing the force sensor 2 and the movable wire rope thereon is known.

[0069] This embodiment has no limitation on the thickness of the steel wire rope, as long as the structure can achieve its function.

[0070] A method for testing the lip adhesion of cigarette tipping paper, using the above-mentioned testing system for the lip adhesion of cigarette tipping paper, comprises the following steps:

[0071] Step 1, cutting the cigarette tipping paper, the length of the tipping paper test sample is equal to the width of the cigarette tipping paper, and the width of the test sample is equal to 1.5 cm;

[0072] Step 2: Use solid glue to stick the cut tipping paper test sample to both sides of the cube metal block of the sample loading module 9, and rely on the tightening effect of both sides of the tipping paper test sample to make the middle of the tipping paper test sample stick to the rubber pad at the lower end of the sample loading module 9, and the bottom area of ​​the rubber pad is 1.5cm*1.5cm;

[0073] Step 3, hang the sample loading module 9 loaded with the tipping paper test sample to the clamping ring at one end of the wire rope through the sample loading module hook 8;

[0074] Step 4, when the sample loading module 9 is stable and does not float, the load force on the rigid rope 4 is reset to zero through the MAP software; the high viscosity side of the artificial lip 3M low viscosity tape is pasted on the movable cover 10, with the low viscosity side facing upward, the movable cover 10 is installed on the movable cover bracket 12, and a layer of artificial saliva at 36.3 degrees Celsius is sprayed on the artificial lips;

[0075] Step 5, the friction test platform 1 is controlled by the MAP software to lower the sample loading module 9 to the preset contact position so that the tipping paper test sample contacts the artificial lip for 6 seconds, and the contact area between the two is 1.5cm*1.5cm. After the contact is completed, the steel wire rope pulls the sample loading module 9 to slowly separate from the artificial lip until the moment of separation, and the running speed of the steel wire rope is controlled to be 50mm / s. At this time, the maximum force on the steel wire rope and the force curve distribution diagram are recorded, and the maximum force value during the test is recorded as the lip adhesion force;

[0076] Step 6, clean the table, take the tipping paper test sample off the sample loading module 9, and then repeat the same batch of samples to continue testing until the tenth time to export data for analysis, and record the average lip adhesion of the 10 tests as the lip adhesion of the sample, and the value is F;

[0077] Step 7, according to the lip adhesion strength of the samples in step 6, the lip adhesion strength level and lip adhesion performance are divided as follows:

[0078] When 0N≤F<0.2N, the lip sticking force level is determined to be level 0, and the lip sticking performance is non-lip sticking;

[0079] When 0.2N≤F<0.3N, the lip sticking force level is determined to be level 1, and the lip sticking is mild;

[0080] When 0.3N≤F<0.5N, the lip sticking force grade result is determined to be level 2, and the lip sticking performance is moderate lip sticking;

[0081] When 0.5N≤F<0.6N, the lip sticking force level is determined to be level 3, and the lip sticking is severe;

[0082] When F ≥ 0.6N, the lip sticking force grade result is determined to be level 4, and the lip sticking performance is severe lip sticking.

[0083] Then repeat the above steps 1-7 to test 18 different batches or different models of tipping paper, recorded as sample numbers 1-18. At the same time, the lip adhesion level of the tipping paper for cigarettes is evaluated according to the manual smoking evaluation results. The summary test results are shown in Table 1.

[0084] As can be seen from Table 1, the lip adhesion level of Example 1 is consistent with the result of manual suction evaluation, so the testing device and testing method of the present invention have high accuracy.

[0085] Table 1 Test results of lip adhesion of cigarette tipping paper

[0086]

[0087] Example 2

[0088] The method of Example 1 was used for testing, except that the artificial lips used a silicone block. Then, steps 1-7 of Example 1 were repeated to test 20 different batches or different models of tipping papers, recorded as sample numbers 1-20. At the same time, the lip adhesion level of the tipping papers for cigarettes was evaluated according to the results of manual smoking evaluation. The test results are summarized in Table 2.

[0089] As can be seen from Table 2, the lip adhesion level of Example 2 is consistent with the result of manual suction evaluation. Therefore, the testing device and the testing method of the present invention have high accuracy, and the test results are independent of the type of silica gel, and general silica gel can be used.

[0090] Table 2 Cigarette tipping paper lip adhesion test results

[0091]

[0092]

[0093] Comparative Example 1

[0094] The test was conducted using the method of Example 1, except that the artificial lips were latex blocks. Then, steps 1-7 of Example 1 were repeated to test 5 different batches or models of tipping papers, recorded as sample numbers 1-5. At the same time, the lip adhesion level of the tipping papers for cigarettes was evaluated based on the results of manual smoking evaluation. The test results are summarized in Table 3.

[0095] As can be seen from Table 3, the lip adhesion level of this comparative example is quite different from the result of manual suction evaluation. Therefore, the test results have poor repeatability, which shows that the selection of artificial lips plays an important role in the test accuracy.

[0096] Table 3 Cigarette tipping paper lip adhesion test results

[0097]

[0098] Comparative Example 2

[0099] The test was carried out using the method of Example 1, except that the rubber pad under the sample loading module 9 was removed and the metal block was used directly for the test.

[0100] Then, steps 1-7 of Example 1 were repeated for 5 different batches or types of tipping papers, recorded as sample numbers 1-5, and the lip adhesion level of the tipping papers for cigarettes was evaluated according to the manual smoking evaluation results. The summary test results are shown in Table 4.

[0101] As can be seen from Table 4, the lip sticking force level of Comparative Example 2 is quite different from the result of manual smoking evaluation, so the repeatability of the test result is poor. This shows that fixing the rubber pad under the sample loading module 9 can greatly improve the test accuracy. The reason is that the rubber pad can make the cigarette tipping paper and the sample loading module 9 fit tightly together, so that the data is more stable and the repeatability is better.

[0102] Table 4 Cigarette tipping paper lip adhesion test results

[0103]

[0104] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for testing the lip adhesion of cigarette tipping paper, characterized in that: The test is conducted using a testing system for the lip adhesion of cigarette tipping paper, the testing system comprising: artificial lips, testing equipment; Wherein, the artificial lips are silicone blocks or 3M low-viscosity tape; The testing device comprises: a friction test platform (1), a force sensor (2), a rigid rope (4), a pulley (6), a pulley bracket, and a sample loading module (9). A pulley (6) is mounted on the pulley bracket, the rigid rope (4) slides inside the pulley (6), the rigid rope (4) is L-shaped, one end of the rigid rope (4) in the horizontal direction is connected to the force sensor (2), and the other end in the vertical direction is connected to the sample loading module (9); The artificial lip is located directly below the sample loading module (9) and the two are in contact at the testing position; The friction test platform (1) is installed with friction resistance test software, the friction test platform (1) is in communication connection with the force sensor (2), and the friction test platform (1) controls the movement of the rigid rope (4) and records the change of the force on the rigid rope (4) with time and / or position; The test system further comprises: artificial saliva, which is sprayed on the test surface of the artificial lips during the test; The test system further comprises: an artificial lip support, on which the artificial lip is mounted; a level adjustment component is arranged under the artificial lip support; The two ends of the rigid rope (4) are respectively connected to the force sensor (2) and the sample loading module (9) via movable connecting parts; The sample loading module (9) is a counterweight block with an elastic pad fixed at the lower end; The test method comprises the following steps: Attaching the tipping paper sample to be tested to the lower end of the sample loading module (9), then connecting the sample loading module (9) to the rigid rope (4), and clearing the load force on the rigid rope (4) at this time; Placing the artificial lips directly below the sample loading module (9); The friction meter test platform (1) controls the sample loading module (9) to descend, so that the artificial lip contacts the tipping paper sample to be tested, and the contact area between the two is 1.5 cm*1.5 cm. After the contact is completed, the rigid rope (4) is controlled to pull the sample loading module (9) away from the artificial lip until the moment of separation. The friction meter test platform (1) controls the movement of the rigid rope (4) and records the maximum force on the rigid rope (4) during the test. The force is recorded as the lip sticking force, and the value is F. According to the lip sticking force, the lip sticking force level and lip sticking performance are divided as follows: When 0N≤F<0.2N, the lip sticking force level is determined to be level 0, and the lip sticking performance is non-lip sticking; When 0.2N≤F<0.3N, the lip sticking force level is determined to be level 1, and the lip sticking is mild; When 0.3N≤F<0.5N, the lip sticking force grade result is determined to be level 2, and the lip sticking performance is moderate lip sticking; When 0.5N≤F<0.6N, the lip sticking force level is determined to be level 3, and the lip sticking is severe; When F ≥ 0.6N, the lip sticking force grade result is determined to be level 4, and the lip sticking performance is severe lip sticking.

2. The testing method according to claim 1, characterized in that: The friction test platform (1) controls the running speed of the rigid rope (4) to be 40-60 mm / s, and the contact time between the artificial lips and the tipping paper sample to be tested is 4-7 seconds.

3. The testing method according to claim 1, characterized in that: The method for attaching the tipping paper sample to be tested to the lower end of the sample loading module (9) is as follows: the tipping paper sample to be tested is adhered to the side of the counterweight block of the sample loading module (9) so that the middle of the tipping paper to be tested is completely in contact with the elastic pad at the lower end of the sample loading module (9).

4. The testing method according to claim 1, characterized in that: Before the artificial lips come into contact with the tipping paper sample to be tested, artificial saliva is first sprayed on the artificial lips.

Images