Method for measuring performance of cigarette base material adsorption material liquid and application of method

Abstract

The invention provides a method for measuring the material liquid adsorption performance of a cigarette base material and application of the method, and the method comprises the following steps: (1) measuring the area of the base material, applying a material liquid to the surface of the cigarette base material, standing, and recording the applied weight of the material liquid as C0; (2) weighing oil-absorbing paper, recording the weight as W0, covering the surface of the base material with the oil-absorbing paper, standing, shooting the oil-absorbing paper by using a camera, weighing the oil-absorbing paper, recording the weight as W1, measuring the oil spot area in the oil-absorbing paper, and dividing the cigarette base material into unqualified products and to-be-detected products according to the oil spot area; and (3) measuring the material liquid transfer rate of the to-be-measured product, and judging whether the adsorption performance of the cigarette base material is qualified or not according to the transfer rate. The method disclosed by the invention not only can be used for rapidly and accurately measuring and evaluating the adsorption performance of the cigarette base material, but also has the advantages of flexible and simple operation and wide application range.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco, and in particular relates to a method for determining the adsorption performance of a cigarette substrate for liquid and an application thereof. Background Art

[0002] In order to improve the smoking quality of cigarette products, cigarette manufacturers usually add some flavoring, smoke-generating, antiseptic and other auxiliary materials during the production process of cigarettes. By adding the above auxiliary materials, on the one hand, the taste of cigarettes can be increased and the sensory quality of cigarettes can be improved; on the other hand, the harmful chemical components in cigarettes can be reduced. Therefore, the adsorption performance of the substrate for auxiliary materials is particularly important.

[0003] The adsorption performance of the substrate is related to the components and structure of the substrate. The conventional method is to apply the liquid to the surface of the substrate and then extract the liquid on the surface of the substrate with chemical reagents. Then, the content of relevant components in the liquid is analyzed by gas chromatography, gas chromatography-mass spectrometry, liquid chromatography, ultraviolet spectroscopy and other methods to evaluate the adsorption performance of the substrate on the liquid. On the one hand, the pre-treatment procedures of this method are relatively cumbersome, the test cycle is long, and it cannot reflect the adsorption rate of different substrates on the liquid in real time; on the other hand, the use of chemical reagents to extract the liquid in the substrate may extract the liquid that has been adsorbed by the substrate, or fail to completely extract the liquid on the surface of the substrate, making it difficult to truly reflect the adsorption effect of the substrate on the liquid.

[0004] Therefore, in order to improve the quality of cigarette products and enhance consumers' sensory experience, it is urgently necessary to provide a method that can quickly measure and evaluate the adsorption performance of cigarette substrates to meet application needs. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a method for determining the adsorption performance of liquid by a cigarette substrate and its application.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a method for determining the adsorption performance of a liquid by a cigarette substrate, the method comprising:

[0008] (1) Measure the substrate area, then apply the liquid to the surface of the cigarette substrate and let it stand, while recording the applied weight of the liquid as C0;

[0009] (2) Weigh the oil-absorbing paper and record the weight as W0, then cover the surface of the substrate, let it stand and take a picture of the oil-absorbing paper with a camera, weigh the oil-absorbing paper and record the weight as W1, then measure the area of ​​the oil spot on the oil-absorbing paper, and classify the cigarette substrates into unqualified products and products to be tested according to the area of ​​the oil spot;

[0010] (3) measuring the material-liquid transfer rate of the sample to be tested, and judging whether the adsorption performance of the cigarette substrate is qualified according to the transfer rate;

[0011] The calculation formula of the feed-liquid transfer rate is:

[0012]

[0013] The method of the present invention draws on the test method for the adsorption performance of paper to oily substances (Kit method), that is, the oil-proof grade of the paper sample is determined according to the color state after the oil droplets are left on the surface of the paper sample for a certain period of time and then wiped, and the adsorption of the substrate to the liquid is evaluated by combining the oil-absorbing paper adsorption transfer image method with the determination of the flavor transfer rate. The method can not only quickly and accurately determine and evaluate the adsorption performance of the cigarette substrate, but also has the advantages of flexible operation, simplicity and wide application range.

[0014] Preferably, the cigarette substrate comprises tobacco sheet or paper-based material.

[0015] Preferably, the paper-based material comprises cigarette paper, tipping paper or filter plug forming paper.

[0016] Preferably, the liquid feed includes any one of a flavoring agent, a smoke generator, a humectant, a combustion aid or a preservative, or a combination of at least two of them.

[0017] Preferably, the standing time in step (1) is 1-10 min, for example, 1 min, 3 min, 5 min, 7 min, 9 min or 10 min.

[0018] Preferably, the amount of liquid applied in step (1) is preferably 0.1-5 μL / cm 2 , for example, 0.3 μL / cm 2 , 0.5μL / cm 2 , 0.8μL / cm 2 , 1μL / cm 2 , 1.5μL / cm 2 , 2μL / cm 2 , 2.5μL / cm 2 , 3μL / cm 2 , 3.5μL / cm 2 , 4μL / cm 2 or 4.5 μL / cm 2 wait.

[0019] Preferably, the amount of liquid applied in step (1) can be used to determine the amount of liquid that the cigarette substrate can carry.

[0020] The method for determining the carrying capacity is as follows:

[0021] Place the oil-absorbing paper on the bottom of the substrate and apply the slurry to the surface of the substrate. The amount of slurry applied when oil spots appear on the oil-absorbing paper is the substrate's carrying capacity for the slurry.

[0022] Preferably, the standing time in step (2) is 3-10 s, for example, 4 s, 5 s, 6 s, 7 s, 8 s or 9 s.

[0023] Preferably, the classification standard of the unqualified products and the products to be tested in step (2) is as follows: the classification standard of the unqualified products and the products to be tested in step (2) is as follows: if the area of ​​the oil spot in the oil-absorbing paper covering the test substrate is ≥ 80% of the area of ​​the substrate (for example, it can be 82%, 85%, 88%, 90%, 92%, 95%, 98% or 100%, etc.), it is judged as an unqualified product; if the area of ​​the oil spot in the oil-absorbing paper covering the test substrate is < 80% of the area of ​​the substrate (for example, it can be 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70% or 75%, etc.), it is judged as a product to be tested.

[0024] The oil spot area can be simulated by using image processing software to process the oil spot photo of the oil absorbing paper taken by a camera and extracting the pixels of the oil spot image.

[0025] Preferably, if the transfer rate in step (3) is greater than 20% (for example, it may be 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90% or 95%, etc.), the adsorption performance of the cigarette substrate is judged to be unqualified;

[0026] If the transfer rate is ≤20% (for example, it may be 2%, 5%, 8%, 10%, 12%, 15% or 18%, etc.), the adsorption performance of the cigarette substrate is determined to be qualified.

[0027] Any specific point value within the above numerical range can be selected, and will not be described in detail here.

[0028] In a second aspect, the present invention provides an application of the determination method as described in the first aspect in cigarette production.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The method of the present invention draws on the test method for the adsorption performance of paper to oily substances (Kit method), that is, the oil-proof grade of the paper sample is determined according to the color state after the oil droplets are left on the surface of the paper sample for a certain period of time and then wiped, and the adsorption of the substrate to the liquid is evaluated by combining the determination of the liquid transfer rate with the adsorption transfer image of the oil-absorbing paper. The method can not only quickly and accurately determine and evaluate the adsorption performance of the cigarette substrate, but also has the advantages of flexible operation, simplicity and wide application range. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0032] In the following embodiments

[0033] Tobacco sheet A is a thick pulp tobacco sheet;

[0034] Tobacco sheet B is a roll-pressed tobacco sheet;

[0035] Tobacco sheet C is a spray-coated tobacco sheet;

[0036] Tobacco sheet D is a thick pulp tobacco sheet (from a different batch than tobacco sheet A);

[0037] The tobacco flavor comes from Hebei Yuanchuang Biotechnology Co., Ltd.

[0038] Example 1

[0039] This embodiment provides a method for determining the adsorption performance of liquid by a cigarette substrate, and the determination method is as follows:

[0040] (1) Spray 80 μL of tobacco flavor liquid (0.08 g) onto tobacco sheet A (area 1 dm 2 ) on the surface and let it stand for 5 minutes;

[0041] (2) The area is 1.5dm 2 , cover the surface of the tobacco slice with 1g of oil-absorbing paper, and press a weight on the oil-absorbing paper to ensure that the oil-absorbing paper and the tobacco slice are in full contact. After standing for 5s, use a camera to photograph the oil-absorbing paper;

[0042] (3) The weight of the oil-absorbing paper was measured to be 1.008 g, and the area of ​​the oil spot on the oil-absorbing paper was measured to be 0.28 dm 2 Since the area of ​​the oil spot is less than 80% of the area of ​​the tobacco sheet, the liquid transfer rate is determined to be 10%. Based on the liquid transfer rate, it is determined that the adsorption performance of the tobacco sheet A is qualified.

[0043] Example 2

[0044] This embodiment provides a method for determining the adsorption performance of liquid by a cigarette substrate, and the determination method is as follows:

[0045] (1) Spray 50 μL of glycerol (0.063 g) onto tobacco sheet B (area 1 dm 2 ) on the surface and let it stand for 8 minutes;

[0046] (2) The area is 1.5dm 2, cover the surface of the tobacco slice with 1g of oil-absorbing paper, and press a weight on the oil-absorbing paper to ensure that the oil-absorbing paper is in full contact with the tobacco slice. After standing for 10s, use a camera to photograph the oil-absorbing paper;

[0047] (3) The weight of the oil absorbing paper was measured to be 1.018 g, and the area of ​​the oil spot on the oil absorbing paper was measured to be 0.85 dm 2 ,Since the area of ​​the oil spot is larger than 80% of the area of ​​the tobacco sheet, it is determined that the adsorption performance of the tobacco sheet B is unqualified.

[0048] Example 3

[0049] This embodiment provides a method for determining the adsorption performance of liquid by a cigarette substrate, and the determination method is as follows:

[0050] (1) Spray 300 μL tobacco flavor (0.3 g) onto tobacco sheet C (area 1 dm 2 ) on the surface and let it stand for 10 minutes;

[0051] (2) The area is 1.5dm 2 , cover the surface of the tobacco slice with 1g of oil-absorbing paper, and press a weight on the oil-absorbing paper to ensure that the oil-absorbing paper is in full contact with the tobacco slice. After standing for 5s, take a picture of the oil-absorbing paper with a camera;

[0052] (3) The weight of the oil absorbing paper was measured to be 1.065 g, and the area of ​​the oil spot on the oil absorbing paper was measured to be 0.56 dm 2 Since the area of ​​the oil spot is less than 80% of the area of ​​the tobacco sheet, the liquid transfer rate is determined to be 22%. According to the liquid transfer rate, the adsorption performance of the tobacco sheet C is determined to be unqualified.

[0053] Comparative Example 1

[0054] This comparative example provides a method for determining the adsorption performance of liquid by a cigarette substrate, and the determination method is:

[0055] (1) Spray 80 μL tobacco flavor (0.08 g) onto tobacco sheet D (area 1 dm 2 ) on the surface and let it stand for 5 minutes;

[0056] (2) The area is 1.5dm 2 , a piece of oil-absorbing paper weighing 1g is covered on the surface of the tobacco slice, and a weight is pressed on the oil-absorbing paper to ensure that the oil-absorbing paper is in full contact with the tobacco slice. After standing for 10s, the weight of the oil-absorbing paper is measured to be 1.016g, and the liquid-to-material transfer rate is measured to be 20%. The adsorption performance of tobacco slice D is determined to be qualified based on the liquid-to-material transfer rate.

[0057] Test Example 1

[0058] Since tobacco sheets have poor adsorption properties, the liquid will form a sticky substance on their surface, which will easily cause oil spots on the cigarette core rod forming paper made of tobacco sheets as the core material, and can cause the prepared cigarettes to have a higher draw resistance. Therefore, the adsorption performance of tobacco sheets can be verified by observing the appearance of oil spots on the cigarette core rod forming paper and testing the draw resistance.

[0059] Test method:

[0060] The rolled thin slices (tobacco thin slices AD) are loaded into the cigarette core cutting and forming machine, and the thin slices are cut into thin slices with a width of about 1 mm and continuous in the longitudinal direction, and transported to the liquid application system. After the liquid is accurately applied to the surface of the thin slices (the amount applied is consistent with the corresponding embodiment), they are gathered into the cigarette gun to form cigarette core rods. Under the action of the cutting knife, the cigarette core rods are cut into cigarette core rods with a length of about 120 mm. Among them, all thin slice samples are applied with the same amount of tobacco flavoring liquid as the corresponding embodiment. The circumference of the produced cigarette core rod is 22.00 mm.

[0061] The draw resistance of the cigarette core rod is tested according to the determination method specified in GB / T22838.5-2009 "Determination of physical properties of cigarettes and filter rods Part 5: Cigarette draw resistance and filter rod pressure drop".

[0062] At the same time, the prepared cigarette core rod was placed for 1 month and then observed to see if there were any oil spots on the surface of the forming paper. If there were any oil spots, it indicated that the adsorption of the tobacco sheet was poor. The results are shown in Table 1.

[0063] Table 1

[0064] sample Absorption resistance without coating liquid Absorption resistance when coating liquid Is there any oily spot on the forming paper? Tobacco Flakes A 2004 2063 none Tobacco flakes B 1746 2152 have Tobacco flakes C 2093 2447 have Tobacco flakes D 2054 2236 have

[0065] As can be seen from Table 1, the draw resistance of tobacco sheet A increases slightly after being coated with liquid, and there is no oil spot on the surface of the formed paper after one month, which proves that the adsorption performance of the substrate is good, which is consistent with the test results of Example 1; the draw resistance of tobacco sheets B and C increases significantly after being coated with liquid, and there are oil spots on the surface of the formed paper after one month, which proves that the adsorption performance of the substrate is poor, which is consistent with the test results of Examples 2 and 3, indicating that the method of the present invention can accurately and quickly determine whether the adsorption performance of the tobacco sheet is qualified, while in Comparative Example 1, when only the transfer rate is used for judgment, the result will be biased, indicating that the method of the present invention can only make the measurement result more accurate by combining the area method and the weight method.

[0066] The applicant declares that the present invention uses the above-mentioned embodiments to illustrate the method for determining the adsorption performance of a cigarette substrate liquid and its application, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0067] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0068] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A method for determining the adsorption performance of a cigarette substrate, characterized in that: The determination method comprises: (1) Measure the substrate area, then apply the liquid to the surface of the cigarette substrate and let it stand, while recording the applied weight of the liquid as C0; (2) Weigh the oil-absorbing paper and record the weight as W0, then cover the surface of the substrate, let it stand and take a picture of the oil-absorbing paper with a camera, weigh the oil-absorbing paper and record the weight as W1, then measure the area of ​​the oil spot on the oil-absorbing paper, and classify the cigarette substrates into unqualified products and products to be tested according to the area of ​​the oil spot; (3) measuring the material-liquid transfer rate of the sample to be tested, and judging whether the adsorption performance of the cigarette substrate is qualified according to the transfer rate; The calculation formula of the feed-liquid transfer rate is:

2. The measuring method according to claim 1, characterized in that The cigarette substrate includes tobacco sheets or paper-based materials.

3. The measuring method according to claim 2, characterized in that The paper-based material includes cigarette paper, tipping paper or filter rod forming paper.

4. The assay method according to any one of claims 1 to 3, characterized in that The liquid feed includes any one of a flavoring agent, a smoke generator, a humectant, a combustion aid or a preservative, or a combination of at least two of them.

5. The assay method according to any one of claims 1 to 4, characterized in that The standing time in step (1) is 1-10 min.

6. The assay method according to any one of claims 1 to 5, characterized in that The amount of liquid applied in step (1) is 0.1-5 μL / cm 2 .

7. The assay method according to any one of claims 1 to 6, characterized in that The standing time in step (2) is 3-10s.

8. The assay method according to any one of claims 1 to 7, characterized in that The classification standard for the unqualified products and the products to be tested in step (2) is: if the area of ​​the oil spot in the oil-absorbing paper covering the test substrate is ≥ 80% of the area of ​​the substrate, it is judged as an unqualified product; if the area of ​​the oil spot in the oil-absorbing paper covering the test substrate is < 80% of the area of ​​the substrate, it is judged as a product to be tested.

9. The assay method according to any one of claims 1 to 8, characterized in that If the transfer rate in step (3) is greater than 20%, the adsorption performance of the cigarette substrate is judged to be unqualified; If the transfer rate is ≤20%, the adsorption performance of the cigarette substrate is judged to be qualified.

10. Use of the determination method according to any one of claims 1 to 9 in cigarette production.

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