Cigarette tipping paper with anti-adhesion layer, preparation method and application

Abstract

The present invention relates to a cigarette tipping paper containing an anti-adhesive layer, comprising a touch layer, an ink layer, a base paper layer and an anti-adhesive layer stacked in sequence; wherein the anti-adhesive layer contains aluminum oxide particles, a water-based resin and an anti-adhesive agent. The prepared cigarette tipping paper has good anti-adhesive performance and a certain ability to resist external tearing. The process is simple and not easy to be damaged when applied to the cigarette rolling process, and the produced cigarettes are of high quality.

Description

Technical Field

[0001] The invention relates to the field of cigarette tipping paper, in particular to a cigarette tipping paper containing an anti-adhesive layer, a preparation method and an application thereof. Background Art

[0002] Cigarette paper is one of the main auxiliary materials for cigarette products. It can be used as tipping paper to tip filters and cigarettes, and can also be used for cigarette box outer packaging or cigarette labels. As cigarette consumers have higher and higher aesthetic and quality requirements for cigarette packaging, cigarette paper, especially cigarette tipping paper, continues to increase investment in packaging design. Printing flocking tactile ink on the surface of the product has become the mainstream method for mid-to-high-end cigarette tipping paper, but most expensive inks, including flocking tactile ink, are often damaged during the packaging process due to the harsh conditions of the production process. For example, due to the high-speed winding process, the packaging paper is subjected to great traction. Under the action of pressure, the tactile layer on the surface of the paper will deform and easily bond with the porous structure on the back of the adjacent layer of paper, resulting in batch scrapping of the product. Summary of the invention

[0003] Based on this, the purpose of the present invention includes providing a cigarette tipping paper containing an anti-adhesive layer, which can improve the adaptability of the cigarette tipping paper to external forces while avoiding adhesion, thereby improving the quality of cigarette tipping. In addition, the present invention also provides a preparation method and application of cigarette tipping paper.

[0004] In a first aspect of the present application, there is provided a cigarette tipping paper containing an anti-adhesive layer, comprising a touch layer, an ink layer, a base paper layer and an anti-adhesive layer stacked in sequence;

[0005] Wherein, the anti-adhesive layer contains aluminum oxide particles, water-based resin and anti-adhesive agent.

[0006] In some embodiments, the cigarette tipping paper satisfies one or more of the following characteristics:

[0007] The average particle size of the aluminum oxide particles is 0.1-4 μm;

[0008] The surface density of the aluminum oxide particles in the anti-adhesive layer is 0.1 g / m 2 ~1.5g / m 2 ;

[0009] The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 5% to 20%;

[0010] The hardness of the anti-adhesive layer is H-2H.

[0011] In some embodiments, the cigarette tipping paper satisfies one or more of the following characteristics:

[0012] The water-based resin is selected from one or more of aldehyde-ketone resin, polyurethane resin, silicone resin, acrylic resin and;

[0013] The weight percentage of the aqueous resin in the anti-adhesive layer is 60% to 90%;

[0014] The anti-adhesive agent is selected from one or more of oleic acid amide, organosilicon compound, white carbon black and light calcium carbonate;

[0015] The weight percentage of the anti-adhesive agent in the anti-adhesive layer is 5% to 22%.

[0016] In some embodiments, the cigarette tipping paper has a tactile layer with a thickness of 0.5 μm to 2.5 μm, an ink layer with a thickness of 0.5 μm to 3 μm, a base paper layer with a thickness of 30 μm to 70 μm, and an anti-adhesive layer with a thickness of 2 μm to 10 μm.

[0017] In a second aspect of the present application, there is provided a method for preparing a cigarette tipping paper containing an anti-adhesive layer, comprising the following steps:

[0018] Providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other;

[0019] forming an ink layer on the first surface of the base paper layer;

[0020] forming a touch layer on a surface of the ink layer at a side away from the base paper layer;

[0021] Anti-adhesive varnish is applied to a preset area on the second surface of the base paper layer, and an anti-adhesive layer is formed in the preset area after drying to obtain cigarette plugging paper; wherein the anti-adhesive varnish comprises a hardener, an aqueous resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component.

[0022] In some embodiments, the method for preparing the cigarette tipping paper satisfies one or more of the following characteristics:

[0023] The anti-adhesive varnish comprises, by weight, 5 to 10 parts of a hardener, 30 to 55 parts of an aqueous resin, 0.5 to 5.5 parts of an anti-adhesive agent, and 20 to 40 parts of a solvent;

[0024] The ratio of the coating area of ​​the anti-adhesive varnish on the base paper layer to the total area of ​​the base paper layer is (0.15-0.5):1;

[0025] The coating amount of the anti-adhesive varnish on the base paper layer is 1 g / m 2 ~5g / m 2 .

[0026] In some embodiments, the method for preparing the cigarette tipping paper satisfies one or more of the following characteristics:

[0027] The hardener is aluminum sol;

[0028] The pH value of the hardener is 3 to 6.5;

[0029] The average particle size of the hardener is 20 to 1000 nm;

[0030] The solvent is a mixture of ethanol and water, wherein the mass ratio of water to ethanol is 1:(1-2).

[0031] In some embodiments, in the method for preparing the cigarette tipping paper, the cigarette tipping paper containing the anti-adhesive layer is as defined in the first aspect.

[0032] The third aspect of the present application provides a cigarette, comprising the cigarette tipping paper according to the first aspect or the cigarette tipping paper prepared by the preparation method according to the second aspect.

[0033] The fourth aspect of the present application provides use of the cigarette tipping paper described in the first aspect or the cigarette tipping paper prepared by the preparation method described in the second aspect in preparing cigarettes.

[0034] In the present invention, an anti-adhesive layer is introduced on one side of the base paper layer of the cigarette tipping paper, which can improve the anti-adhesive property, thereby improving the problem that the cigarette tipping paper is easily damaged and has a high scrap rate during the rolling process. The anti-adhesive layer mainly comprises aluminum oxide particles, water-based resin and anti-adhesive agent. Among them, the water-based resin has a certain affinity for glue and good affinity with the touch layer on the surface of the cigarette tipping paper, which is conducive to improving the efficiency of the subsequent cigarette rolling process; the introduction of aluminum oxide particles helps to improve the density of the anti-adhesive layer, improve the hardness of the anti-adhesive layer, and reduce the problem of damage and deformation under the action of external force; the addition of anti-adhesive agent can effectively improve the interlayer adhesion problem caused by the rolling pressure of the cigarette tipping paper during the rolling process; aluminum oxide particles cooperate with anti-adhesive agent to effectively improve the anti-adhesive performance of cigarette tipping paper. The prepared cigarette tipping paper has good anti-adhesive performance. In addition, it also has a certain ability to resist external force tearing. It is used in the process of cigarette rolling, and the process is simple, not easy to be damaged, and the quality of the produced cigarettes is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application and to more completely understand the present application and its beneficial effects, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should also be noted that the drawings are all drawn in a simplified form and are only used to conveniently and clearly assist in explaining the present invention. The various sizes of each component shown in the drawings are arbitrarily shown and may be accurate or may not be drawn according to the actual scale. For example, in order to make the illustration clearer, the size of the components is appropriately exaggerated in some places in the drawings. Unless otherwise specified, the components in the figure are not drawn to scale. The present invention does not limit each size of each component.

[0036] In the following description, the same reference numerals denote the same parts.

[0037] Figure 1 The figure is a schematic plan view of the structure of a cigarette tipping paper containing an anti-adhesive layer in one embodiment of the present invention.

[0038] Figure 2 The figure is a three-dimensional schematic diagram of the structure of a cigarette tipping paper containing an anti-adhesive layer in one embodiment of the present invention.

[0039] Figure 3 It is a schematic diagram of stacking or rolling up cigarette tipping paper containing an anti-adhesive layer in one embodiment of the present invention.

[0040] Reference numerals: 100 is a base paper layer, 200 is an ink layer, 300 is a tactile layer, and 400 is an anti-adhesive layer distributed in a preset area. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0043] the term

[0044] Unless otherwise specified or incompatible herewith, the terms and phrases used herein shall have the following meanings:

[0045] Cigarette tipping paper, also called tipping paper, is generally made of cigarette packaging paper as the base material and is used to connect and fix filters to cigarette sticks.

[0046] In the present invention, "plurality", "multiple", "multiple times", etc., unless otherwise specified, refer to a number greater than 2 or equal to 2. For example, "one or more" means one or greater than or equal to two.

[0047] In the present invention, "preferred", "better", "more preferred" and "suitable" are only used to describe implementation methods or examples with better effects, and it should be understood that they do not constitute a limitation on the scope of protection of the present invention. If multiple "preferred" items appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "preferred" item is independent.

[0048] In the present invention, “further”, “furthermore”, “particularly”, etc. are used for descriptive purposes to indicate differences in content, but should not be construed as limiting the scope of protection of the present invention.

[0049] In the present invention, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0050] In the present invention, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values ​​in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e., the minimum value and the maximum value) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to the integers in the numerical interval, including the two endpoint integers of the numerical range, and each integer between the two endpoints, is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed herein should be understood to include any and all sub-ranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows broadly including numerical interval types such as percentage intervals, ratio intervals, and ratio intervals.

[0051] In the present invention, unless otherwise specified, the temperature parameter is allowed to be either a constant temperature treatment or to vary within a certain temperature range. It should be understood that the constant temperature treatment allows the temperature to fluctuate within the precision range controlled by the instrument. Fluctuations within the range of ±5°C, ±4°C, ±3°C, ±2°C, and ±1°C are allowed.

[0052] In the present invention, when it comes to the unit of the data range, if there is a unit only after the right endpoint, it means that the units of the left endpoint and the right endpoint are the same. For example, 3-5h means that the units of the left endpoint "3" and the right endpoint "5" are both h (hours).

[0053] Plate roller: also known as anilox roller. In the present application, the function of the plate roller is to transfer the anti-adhesive coating and ink to the surface of the cigarette tipping paper.

[0054] Average particle size: For an actual particle group composed of particles of different sizes and shapes, compared with an imaginary particle group composed of uniform spherical particles, if the total length of the particle size of the two is the same, the diameter of the spherical particles is called the average particle size of the actual particle group.

[0055] Traditional cigarette tipping paper with a touch layer is generally composed of a base paper layer, an ink layer and a touch layer. Since the typical touch layer contains a resin with a certain viscoelasticity, and in order to maintain the special feel of the touch layer, a glossy protective layer such as one containing epoxy resin components cannot be set on the touch layer. However, since the downstream applications of cigarette tipping paper generally require the use of a roll-joining machine, the cigarette tipping paper needs to be rolled into a reel. During the rolling process, the cigarette tipping paper is not only subjected to a large tensile force, but also to a large vertical pressure between the layers of the cigarette tipping paper, which can easily cause the touch layer of the cigarette tipping paper to adhere to the base paper layer of the adjacent layer of the cigarette tipping paper in the principle axial direction. At the same time, the touch layer generally contains more viscoelastic resins and other ingredients that can bring a special touch, such as short fluff. These ingredients are blended with the main resin to form a loose, staggered whole rather than a tightly combined whole in the form of chemical bonds, so they are prone to falling off or damage under the action of external forces. Therefore, when used in the cigarette rolling process, the cigarette tipping paper with a tactile layer is more likely to be damaged, scrapped, and have poor cigarette quality than other ordinary cigarette tipping papers.

[0056] In a first aspect of the present application, there is provided a cigarette tipping paper containing an anti-adhesive layer, comprising a touch layer, an ink layer, a base paper layer and an anti-adhesive layer stacked in sequence;

[0057] Wherein, the anti-adhesive layer contains aluminum oxide particles, water-based resin and anti-adhesive agent.

[0058] In the present invention, an anti-adhesive layer is introduced on one side of the base paper layer of the cigarette tipping paper, which can improve the anti-adhesive property, thereby improving the problem that the cigarette tipping paper is easily damaged and has a high scrap rate during the rolling process. The anti-adhesive layer mainly comprises aluminum oxide particles, water-based resin and anti-adhesive agent. Among them, the water-based resin has a certain affinity for glue and good affinity with the touch layer on the surface of the cigarette tipping paper, which is conducive to improving the efficiency of the subsequent cigarette rolling process; the introduction of aluminum oxide particles helps to improve the density of the anti-adhesive layer and reduce the problem of damage and deformation under the action of external force; the addition of anti-adhesive agent can effectively improve the interlayer adhesion problem caused by the rolling pressure of the cigarette tipping paper during the rolling process; aluminum oxide particles cooperate with anti-adhesive agent to effectively improve the anti-adhesive performance of cigarette tipping paper. The prepared cigarette tipping paper has good anti-adhesive performance. In addition, it also has a certain ability to resist external force tearing. It is used in the process of cigarette rolling, which is simple and not easy to be damaged, and the quality of the produced cigarettes is high.

[0059] In some embodiments, in the cigarette tipping paper, the ink layer comprises ≥ 2 thin ink layers.

[0060] In some embodiments, the anti-adhesive layer further includes a dispersing aid, such as a styrene-melamine dispersant, an acrylic copolymer dispersant, and the like.

[0061] When the average particle size of the aluminum oxide particles in the anti-adhesive layer is controlled within a suitable range, it is beneficial for the aluminum oxide particles to be evenly distributed in the anti-adhesive coating and improve the density of the coating. When the average particle size of the aluminum oxide particles is less than the suitable range, the aluminum oxide particles may agglomerate and cannot be evenly distributed in the coating, resulting in defects in the anti-adhesive coating; when the average particle size of the aluminum oxide particles is greater than the suitable range, the anti-adhesive layer may have poor uniformity, which may cause easy damage during the winding process of the tipping paper or uneven appearance during application.

[0062] In some embodiments, in the cigarette tipping paper, the average particle size of the aluminum oxide particles is 0.1-4 μm, further can be 0.2-3.5 μm, further can be 0.3-3 μm, and can also be selected from the following thickness or two thickness intervals: 0.1 μm, 0.2 μm, 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm, 0.7 μm, 0.8 μm, 0.9 μm, 1.0 μm, 1.1 μm, 1.2 μm, 1. 3μm, 1.4μm, 1.5μm, 1.6μm, 1.7μm, 1.8μm, 1.9μm, 2.0μm, 2.1μm, 2.2μm, 2.3μm, 2.4μm, 2.5μm, 2.6μm, 2 .7μm, 2.8μm, 2.9μm, 3.0μm, 3.1μm, 3.2μm, 3.3μm, 3.4μm, 3.5μm, 3.6μm, 3.7μm, 3.8μm, 3.9μm or 4.0μm.

[0063] When the surface density of the aluminum oxide particles in the anti-adhesive layer is controlled within a suitable range, it is beneficial to further improve the anti-adhesive performance and winding adaptability of the cigarette tipping paper and reduce the scrap rate. When the surface density of the aluminum oxide particles in the anti-adhesive layer is less than the suitable range, the hardness of the anti-adhesive layer of the cigarette tipping paper may be low, and the anti-adhesive layer formed with the anti-adhesive agent may not play a good anti-adhesive role; when the surface density of the aluminum oxide particles in the anti-adhesive layer is greater than the suitable range, the uniformity of the aluminum oxide particles in the anti-adhesive layer may be poor, thereby further increasing the difficulty of quality control of the cigarette tipping paper.

[0064] In some embodiments, in the cigarette tipping paper, the surface density of the aluminum oxide particles in the anti-adhesive layer is 0.1 g / m 2 ~1.5g / m 2 , and further can be 0.15g / m 2 ~1.0g / m 2 , and further can be 0.21g / m 2 ~0.54g / m 2 , can also be one of the following surface densities or two composition intervals: 0.1g / m 2 , 0.2g / m 2 , 0.21g / m 2 , 0.3g / m 2 , 0.38g / m 2 , 0.4g / m 2 , 0.41g / m 2 , 0.5g / m 2 , 0.54g / m 2 , 0.6g / m 2 , 0.7g / m 2, 0.8g / m 2 , 0.9g / m 2 1.0g / m 2 , 1.1g / m 2 , 1.2g / m 2 , 1.3g / m 2 , 1.4g / m 2 or 1.5g / m 2 .

[0065] When the weight percentage of the aluminum oxide particles in the anti-adhesive layer is controlled within a suitable range, it is beneficial to improve the density and hardness of the anti-adhesive layer. When the weight percentage of the aluminum oxide particles in the anti-adhesive layer is less than the suitable range, the hardness of the anti-adhesive layer may not be significantly improved; when the weight percentage of the aluminum oxide particles in the anti-adhesive layer is greater than the suitable range, the anti-adhesive layer may not wrap the aluminum oxide particles sufficiently.

[0066] In some embodiments, in the cigarette tipping paper, the weight percentage of the aluminum oxide particles in the anti-adhesive layer is 5% to 20%, further can be 6% to 20%, further can be 7% to 20%, and can also be selected from the following weight percentage or the interval consisting of two weight percentages: 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 7.6%, 8%, 8.5%, 9%, 9.5%, 10%, 10.3%, 10.5%, 11%, 11.5%, 12%, 12.5%, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%, 18.5%, 19%, 19.5%, 19.9% ​​or 20%.

[0067] When the hardness of the anti-adhesive layer is controlled within a suitable range, it is beneficial to improve the anti-adhesive performance of the coating. When the hardness of the anti-adhesive layer is less than the suitable range, the anti-adhesive layer may not be able to support the touch layer and effectively reduce the contact between the back of the tipping paper and the touch layer; when the hardness of the anti-adhesive layer is greater than the suitable range, the film-forming property of the anti-adhesive layer may be poor.

[0068] The hardness of the anti-adhesive layer is H to 2H.

[0069] In some embodiments, in the cigarette tipping paper, the water-based resin can be selected from one or more of aldehyde-ketone resin, polyurethane resin, silicone resin, and acrylic resin.

[0070] When the weight percentage of the water-based resin in the anti-adhesive layer is controlled within a more appropriate range, it is beneficial to further improve the composite between the base paper layer and the anti-adhesive layer, and at the same time better wrap the aluminum oxide particles to obtain a uniform anti-adhesive layer. When the weight percentage of the water-based resin in the anti-adhesive layer is less than the appropriate range, it may cause the aluminum oxide particles to be unevenly distributed in the anti-adhesive layer, or the bonding with the base paper layer to be loose, resulting in a high scrap rate of cigarette tipping paper products; when the weight percentage of the water-based resin in the anti-adhesive layer is greater than the appropriate range, it may cause the corresponding aluminum oxide particles to have a low content and fail to play a good anti-adhesive role, and the adjacent layers of the cigarette tipping paper are prone to adhesion.

[0071] In some embodiments, in the cigarette tipping paper, the weight percentage of the aqueous resin in the anti-adhesive layer is 60% to 90%, further can be 65% to 85%, further can be 65.3% to 82%, and can also be selected from the following weight percentage or two composition intervals: 60%, 61%, 62%, 63%, 64%, 65%, 65.3%, 66%, 67%, 67.4%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 79.9%, 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88% or 89%.

[0072] In some embodiments, in the cigarette tipping paper, the anti-adhesive agent may be selected from one or more of oleic acid amide, organosilicon compounds, white carbon black and light calcium carbonate.

[0073] When the weight percentage of the anti-adhesive agent in the anti-adhesive layer is controlled within a more appropriate range, it is beneficial to obtain a better anti-adhesive effect. When the weight percentage of the anti-adhesive agent in the anti-adhesive layer is less than the appropriate range, the anti-adhesive layer may have stiffness that can slow down the interlayer adhesion caused by the interlayer pressure during the rolling process to a certain extent, but after rolling, obvious interlayer adhesion still occurs under long-term pressure, and the scrap rate on the machine is high; when the weight percentage of the anti-adhesive agent in the anti-adhesive layer is greater than the appropriate range, it may cause interlayer slippage, and wrinkles are more likely to occur during high-speed winding due to uneven tension, and powder loss may occur due to insufficient wrapping force of the anti-adhesive agent.

[0074] In some embodiments, in the cigarette tipping paper, the weight percentage of the anti-sticking layer in the anti-sticking layer is 5% to 22%, further can be 7% to 21%, further can be 7.7% to 20.6%, and can also be selected from the following weight percentage or two intervals: 5%, 6%, 7%, 7.7%, 8%, 9%, 10%, 11%, 11.1%, 12%, 13%, 14%, 14.4%, 14.8%, 15%, 16%, 17%, 18%, 19%, 20%, 20.6%, 21% or 22%.

[0075] In some embodiments, in the cigarette tipping paper, the average particle size of the aluminum oxide particles is 0.2 to 3.5 μm, and the surface density of the aluminum oxide particles in the anti-adhesive layer is 0.15 g / m 2 ~1.0g / m 2 The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 6% to 20%, and the hardness of the anti-adhesive layer is H-2H.

[0076] In some embodiments, in the cigarette tipping paper, the average particle size of the aluminum oxide particles is 0.3 to 3 μm, and the surface density of the aluminum oxide particles in the anti-adhesive layer is 0.21 g / m 2 ~0.54g / m 2 The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 7% to 20%, and the hardness of the anti-adhesive layer is H-2H.

[0077] In some embodiments, in the cigarette tipping paper, the average particle size of the aluminum oxide particles is 0.3 to 3 μm, and the surface density of the aluminum oxide particles in the anti-adhesive layer is 0.21 g / m 2 ~0.54g / m 2 The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 7% to 20%, and the hardness of the anti-adhesive layer is 2H.

[0078] In some embodiments, in the cigarette tipping paper, the anti-adhesive agent is selected from one or more of oleic acid amide, organosilicon compounds, white carbon black and light calcium carbonate.

[0079] When the thickness of the tactile layer is controlled within a more appropriate range, it is beneficial to form a coordinated proportional relationship with the base paper layer, the ink layer and the anti-adhesive layer, and is more conducive to improving the overall performance of the cigarette tipping paper, such as tensile strength, tolerable interlayer pressure, etc., thereby reducing the scrap rate on the machine without sacrificing the special properties that the tactile layer can give to the cigarette tipping paper.

[0080] In some embodiments, in the cigarette tipping paper, the thickness of the tactile layer is 0.5μm to 2.5μm, further can be 0.5μm to 2μm, further can be 1μm to 2μm, and can also be selected from the following thickness or a range consisting of two thicknesses: 0.5μm, 0.6μm, 0.7μm, 0.8μm, 0.9μm, 1.0μm, 1.1μm, 1.2μm, 1.3μm, 1.4μm, 1.5μm, 1.6μm, 1.7μm, 1.8μm, 1.9μm, 2.0μm, 2.1μm, 2.2μm, 2.3μm, 2.4μm or 2.5μm.

[0081] In some embodiments, in the cigarette tipping paper, the thickness of the ink layer is 0.5μm to 3μm, further can be 0.5μm to 2.5μm, further can be 1μm to 2μm, and can also be selected from the following thickness or a range consisting of two thicknesses: 0.5μm, 0.6μm, 0.7μm, 0.8μm, 0.9μm, 1.0μm, 1.1μm, 1.2μm, 1.3μm, 1.4μm, 1.5μm, 1.6μm, 1.7μm, 1.8μm, 1.9μm, 2.0μm, 2.1μm, 2.2μm, 2.3μm, 2.4μm, 2.5μm, 2.6μm, 2.7μm, 2.8μm, 2.9μm or 3.0μm.

[0082] In some embodiments, in the cigarette tipping paper, the thickness of the base paper layer is 30μm to 70μm, further can be 40μm to 60μm, further can be 40μm to 50μm, and can also be selected from the following thickness or a range consisting of two thicknesses: 30μm, 32.5μm, 35μm, 37.5μm, 40μm, 42.5μm, 45μm, 47.5μm, 50μm, 52.5μm, 55μm, 57.5μm, 60μm, 62.5μm, 65μm, 67.5μm or 70μm.

[0083] In some embodiments, in the cigarette tipping paper, the base paper layer is selected from one of ordinary paper, high-gloss coating paper and aluminized transfer paper.

[0084] When the thickness of the anti-adhesive layer is controlled within a suitable range, it is beneficial to obtain cigarette tipping paper with good anti-adhesive performance. When the thickness of the anti-adhesive layer is less than the suitable range, it may cause a high degree of interlayer adhesion and poor anti-adhesive effect; when the thickness of the anti-adhesive layer is greater than the suitable range, it may cause the hardness of the touch layer to be relatively low, and the deformation caused by tension during winding may be relatively large, causing the base paper layer, the touch layer and the ink layer to deform or rupture, causing the surface effect of the cigarette tipping paper to be destroyed, thereby scrapping.

[0085] In some embodiments, in the cigarette tipping paper, the thickness of the anti-adhesive layer is 2 μm to 10 μm, further 2 μm to 7 μm, further 2 μm to 4.5 μm, and can also be selected from the following thicknesses or two thicknesses: 2.0 μm, 2.1 μm, 2.2 μm, 2.3 μm, 2.4 μm, 2.5 μm, 2.6 μm, 2.7 μm, 2.8 μm, 2.9 μm, 3.0 μm, 3.1μm, 3.2μm, 3.3μm, 3.4μm, 3.5μm, 3.6μm, 3.7μm, 3.8μm, 3.9μm, 4.0μm, 4.1μm, 4.2μm, 4.3μm , 4.4μm, 4.5μm, 5.0μm, 5.5μm, 6.0μm, 6.5μm, 7.0μm, 7.5μm, 8.0μm, 8.5μm, 9.0μm, 9.5μm or 10μm.

[0086] The thickness of the anti-adhesive layer is generally greater than that of the tactile layer, which helps to better avoid contact between the tactile layer and paper fibers during the paper winding process.

[0087] In some embodiments, in the cigarette tipping paper, the tactile layer has a thickness of 0.5 μm to 2.5 μm, the ink layer has a thickness of 0.5 μm to 3 μm, the base paper layer has a thickness of 30 μm to 70 μm, and the anti-adhesive layer has a thickness of 2 μm to 10 μm.

[0088] In some embodiments, in the cigarette tipping paper, the thickness of the touch layer is 0.5 μm to 2 μm, the thickness of the ink layer is 0.5 μm to 2.5 μm, the thickness of the base paper layer is 40 μm to 60 μm, and the thickness of the anti-adhesive layer is 2 μm to 7 μm.

[0089] In some embodiments, in the cigarette tipping paper, the tactile layer has a thickness of 1 μm to 2 μm, the ink layer has a thickness of 1 μm to 2 μm, the base paper layer has a thickness of 40 μm to 50 μm, and the anti-adhesive layer has a thickness of 2 μm to 4.5 μm.

[0090] In a second aspect of the present application, a method for preparing a cigarette tipping paper containing an anti-adhesive layer is provided, which can prepare a cigarette tipping paper containing an anti-adhesive layer.

[0091] The preparation method of the second aspect of the present application can be used to prepare the cigarette tipping paper of the first aspect.

[0092] In some embodiments, a method for preparing a cigarette tipping paper containing an anti-adhesive layer is provided, comprising the following steps:

[0093] S100: providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other;

[0094] S200: forming an ink layer on the first surface of the base paper layer;

[0095] S300: forming a tactile layer on the surface of the ink layer away from the base paper layer;

[0096] S400: applying anti-adhesive varnish to a preset area on the second surface of the base paper layer, and forming an anti-adhesive layer in the preset area after drying to obtain cigarette plugging paper; wherein the anti-adhesive varnish comprises a hardener, an aqueous resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component.

[0097] In some embodiments, a method for preparing a cigarette tipping paper containing an anti-adhesive layer is provided, comprising the following steps:

[0098] S100: providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other;

[0099] S200: forming an ink layer on the first surface of the base paper layer;

[0100] S300: forming a tactile layer on the surface of the ink layer away from the base paper layer;

[0101] S400: applying anti-adhesive varnish to a preset area on the second surface of the base paper layer, and forming an anti-adhesive layer in the preset area after drying to obtain cigarette plugging paper; wherein the anti-adhesive varnish comprises a hardener, a water-based resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component.

[0102] An ink layer is formed on the first surface of the base paper layer, a touch layer is formed on the surface of the ink layer away from the base paper layer, and an anti-adhesive layer is formed on the second surface of the base paper layer by coating an anti-adhesive varnish containing a water-based resin, a hardener, an anti-adhesive agent and a solvent. The preparation process is simple, and the obtained cigarette tipping paper containing an anti-adhesive layer is not easy to be damaged or deformed under the action of external force, and there is no adhesion between layers. The cigarettes produced in the rolling process are of high quality.

[0103] In some embodiments, a method for preparing a cigarette tipping paper containing an anti-adhesive layer is provided, comprising the following steps:

[0104] S100: providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other;

[0105] S200: forming an ink layer on the first surface of the base paper layer;

[0106] S300: applying a touch-sensitive varnish on a surface of the ink layer away from the base paper layer to form a touch-sensitive layer;

[0107] S400: applying anti-adhesive varnish to a preset area on the second surface of the base paper layer, and forming an anti-adhesive layer in the preset area after drying to obtain cigarette plugging paper; wherein the anti-adhesive varnish comprises a hardener, a water-based resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component.

[0108] In some embodiments, a method for preparing a cigarette tipping paper containing an anti-adhesive layer is provided, comprising the following steps:

[0109] S100: providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other;

[0110] S200: forming an ink layer on the first surface of the base paper layer;

[0111] S300: applying a touch-sensitive varnish on the surface of the ink layer on the side away from the base paper layer, and drying at a suitable temperature to form a touch-sensitive layer;

[0112] S400: applying anti-adhesive varnish to a preset area on the second surface of the base paper layer, drying at a suitable temperature, forming an anti-adhesive layer in the preset area, and obtaining cigarette plugging paper; wherein the anti-adhesive varnish comprises a hardener, a water-based resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component. .

[0113] In some embodiments, the second surface of the base paper layer further includes a portion outside the specific area forming a glue-containing area.

[0114] In some embodiments, a method for preparing a cigarette tipping paper containing an anti-adhesive layer is provided, comprising the following steps:

[0115] S100: providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other;

[0116] S200: forming an ink layer on the first surface of the base paper layer;

[0117] S300: forming a tactile layer on the surface of the ink layer away from the base paper layer;

[0118] S400: Drying the predetermined area on the second surface of the base paper layer at a suitable temperature to form an anti-adhesive layer, thereby obtaining a multi-layer paper material; wherein the anti-adhesive varnish comprises a hardener, an aqueous resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component;

[0119] S401: applying glue to the portion of the second surface of the base paper layer other than the specific area, and forming a glue-containing area after drying;

[0120] When the weight percentage of the hardener in the anti-adhesive varnish is controlled within a suitable range, it is beneficial to obtain cigarette tipping paper with good anti-adhesive force and high quality. When the weight percentage of the hardener in the anti-adhesive varnish is less than the suitable range, the anti-adhesive force of the cigarette tipping paper may be small, or the cigarette tipping paper may be softer and the touch layer may be damaged during the winding process, resulting in a high scrap rate; when the weight percentage of the hardener in the anti-adhesive varnish is greater than the suitable range, the cigarette tipping paper may be stiffer and damage the touch layer of the adjacent tipping paper, or it may be difficult to fit during the winding process, thereby reducing production efficiency.

[0121] In some embodiments, in the method for preparing the cigarette tipping paper, the multi-layer paper material is rolled into a coil.

[0122] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-sticking varnish contains 5 to 10 parts of a hardener by weight, further 6 to 10 parts, and further 5 to 6 parts.

[0123] In some embodiments, the hardener forms hard particles after drying.

[0124] In some embodiments, the hard particles are aluminum oxide particles.

[0125] When the weight percentage of the water-based resin in the anti-adhesive varnish is controlled within a suitable range, it is beneficial to obtain a cigarette tipping paper with good glue affinity. When the weight percentage of the water-based resin in the anti-adhesive varnish is less than the suitable range, the fluidity of the anti-adhesive varnish may be poor, the coating process may be deteriorated, it may be difficult to obtain a predetermined coating thickness, and even the anti-adhesive varnish may be uneven and powdery, so that the anti-adhesive layer cannot be formed; when the weight percentage of the water-based resin in the anti-adhesive varnish is greater than the suitable range, the content of the hardener and the anti-adhesive agent may be insufficient to play the role of anti-adhesion and improve the stiffness of the cigarette tipping paper, and the cigarette tipping paper containing the touch layer may be adhered between the layers after rolling or easily damaged during the rolling process, resulting in a high scrap rate.

[0126] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-sticking varnish comprises 30 to 55 parts of an aqueous resin by weight.

[0127] When the weight percentage of the anti-adhesive agent in the anti-adhesive varnish is controlled within a more appropriate range, it is beneficial to obtain cigarette tipping paper with good anti-adhesive performance. When the weight percentage of the anti-adhesive agent in the anti-adhesive varnish is less than the appropriate range, the content of the anti-adhesive agent may be insufficient to achieve the anti-adhesive effect, and the cigarette tipping paper containing the touch layer after rolling may be easily damaged during the rolling process, resulting in a high scrap rate; when the weight percentage of the anti-adhesive agent in the anti-adhesive varnish is greater than the appropriate range, the anti-adhesive agent in the anti-adhesive layer may not be well wrapped by the resin and exposed on the surface of the anti-adhesive layer. After rolling, the anti-adhesive agent and the touch layer may adhere to each other, affecting the appearance of the tipping paper and causing a high scrap rate in the cigarette rolling process.

[0128] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-adhesive varnish contains 0.5 to 5.5 parts of anti-adhesive agent, further 0.5 to 3 parts, and further 2 to 3 parts, by weight.

[0129] The solvent in the anti-adhesive varnish affects the efficiency of the process and the quality of the anti-adhesive layer, and it is equally important to select the appropriate solvent ratio. When the weight percentage of the solvent in the anti-adhesive varnish is less than the appropriate range, the viscosity of the anti-adhesive coating may be high, the leveling may be poor when transferring through the plate roller, the coating effect may be uneven, and the anti-adhesive effect may not be achieved; when the weight percentage of the solvent in the anti-adhesive varnish is greater than the appropriate range, the viscosity of the anti-adhesive coating may be low, and the anti-adhesive coating may not be completely dried within the effective time, affecting the anti-adhesive performance of the coating.

[0130] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-sticking varnish contains 20 to 40 parts of solvent by weight, further 20 to 36 parts, and further 24 to 36 parts.

[0131] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-adhesive varnish comprises, by weight, 5 to 10 parts of a hardener, 30 to 55 parts of an aqueous resin, 0.5 to 5.5 parts of an anti-adhesive agent, and 20 to 40 parts of a solvent.

[0132] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-adhesive varnish further includes a dispersing aid, such as a styrene-melamine dispersant, an acrylic copolymer dispersant, and the like.

[0133] In some embodiments, in the method for preparing the cigarette tipping paper, the anti-sticking varnish contains, by weight, 5 to 10 parts of a hardener, 30 to 55 parts of an aqueous resin, 0.5 to 5.5 parts of an anti-sticking agent, 0 to 2 parts of a dispersing aid, and 20 to 40 parts of a solvent.

[0134] The anti-adhesive layer is distributed in a preset area of ​​the cigarette tipping paper, which is generally a non-glue area of ​​the cigarette.

[0135] When the ratio of the area of ​​the anti-adhesive layer to the total area of ​​the base paper layer is controlled within a suitable range, it is beneficial to obtain a cigarette tipping paper with good comprehensive properties such as anti-adhesive performance and glue affinity. When the ratio is less than the suitable range, it may be impossible to obtain the interlayer adhesion suitable for the rolling process, and it is easy for the cigarette tipping paper containing the touch layer to be tightly bonded between the layers during the rolling process, or difficult to peel off during the high-speed rolling process, resulting in more wrinkles or damage, resulting in a higher scrap rate; when the ratio is greater than the suitable range, the rolled cigarette tipping paper containing the anti-adhesive layer may have poor glue affinity during the rolling process, and it is not easy to fit, resulting in low production efficiency and loose cigarette adhesion.

[0136] When the ratio of the area of ​​the anti-adhesive layer to the total area of ​​the base paper layer is large, it can also be considered that the second surface of the base paper layer is sealed by the anti-adhesive layer, resulting in poor sizing effect during the rolling process, so that the cigarette sticks and filters of the produced cigarettes are loosely connected through the cigarette tipping paper.

[0137] In some embodiments, in the method for preparing cigarette tipping paper, the ratio of the area of ​​the anti-adhesive layer formed by the anti-adhesive varnish on the preset area of ​​the second surface of the base paper layer to the total area of ​​the base paper layer is (0.15-0.5):1, and can also be one of the following ratios or a range consisting of two of them: 0.15:1, 0.16:1, 0.17:1, 0.18:1, 0.19:1, 0.2:1, 0.21:1, 0.22:1, 0.23:1, 0.24:1, 0. 1, 0.41:1, 0.42:1, 0.43:1, 0.44:1, 0.45:1, 0.46:1, 0.47:1, 0.48:1, 0.49:1 or 0.5:1.

[0138] In some embodiments, in the method for preparing the cigarette tipping paper, the pattern formed by the anti-adhesive layer on the base paper layer is one or more of a triangle, a square, a diamond, and a circle.

[0139] When the coating amount of the anti-adhesive varnish on the second surface of the base paper layer is controlled within a more appropriate range, it is beneficial to obtain cigarette plugging paper with good anti-adhesive performance. When the coating amount of the anti-adhesive varnish on the second surface of the base paper layer is less than the appropriate range, the anti-adhesive performance of the anti-adhesive layer may be poor, and the corresponding thickness may not be reached, and interlayer adhesion may occur easily when the anti-adhesive effect is played, or the scrap rate is high during the cigarette rolling process; when the coating amount of the anti-adhesive varnish on the second surface of the base paper layer is greater than the appropriate range, the plugging paper may easily slip.

[0140] In some embodiments, in the method for preparing cigarette tipping paper, the coating amount of the anti-adhesive varnish on the second surface of the base paper layer is 1 g / m 2 ~5g / m 2 , can also be one of the following coating amounts or two composition intervals: 1g / m 2 , 1.5g / m 2 , 2g / m 2 , 2.5g / m 2 , 3g / m 2 3.5g / m 2 , 4g / m 2 4.5g / m 2 or 5g / m 2 .

[0141] The addition of hardener helps to increase the density of the anti-adhesive layer and at the same time increase the hardness of the resin.

[0142] In some embodiments, the hardening agent is aluminum sol.

[0143] When the pH value of the hardener is controlled within a suitable range, it is beneficial to maintain the stability of the anti-adhesive varnish. When the pH value of the hardener is less than or greater than the suitable range, the anti-adhesive varnish system may be unstable.

[0144] In some embodiments, in the method for preparing the cigarette tipping paper, the pH value of the hardener is 3-7.

[0145] When the particle size of the hardener is controlled within a suitable range, it is beneficial to improve the stability of the anti-adhesive varnish. When the particle size of the hardener is smaller than the suitable range, the stability of the particles may be poor and the stability of the anti-adhesive varnish may be poor; when the particle size of the hardener is larger than the suitable range, the particle size of the hard particles formed after the aluminum sol is dried may be larger, and the resin in the anti-adhesive layer cannot be well wrapped.

[0146] In some embodiments, the particle size of the hardener is between 20-1000 nm.

[0147] In some embodiments, the hardening agent includes aluminum sol, and the hard particles formed after the aluminum sol is dried include aluminum oxide.

[0148] In some embodiments, in the method for preparing the cigarette tipping paper, the hardener comprises aluminum oxide particles having an average particle size of 80 to 1000 μm.

[0149] When the mass ratio of ethanol to the solvent of the anti-adhesive varnish is controlled within a suitable range, it is beneficial to maintain the stability of the anti-adhesive varnish. When the mass ratio of ethanol to the solvent of the anti-adhesive varnish is less than the suitable range, the anti-adhesive varnish may be unstable, demulsified, deteriorated and unusable; when the mass ratio of ethanol to the solvent of the anti-adhesive varnish is greater than the suitable range, the anti-adhesive varnish may be prone to foaming, or the specific surface area of ​​the anti-adhesive varnish is too large, resulting in many defects in the varnish printing.

[0150] In some embodiments, in the method for preparing the cigarette tipping paper, the solvent comprises water and ethanol, and the ratio of water to ethanol is 1:(1-2) by mass, further can be 1:(1-1.75), and further can be 1:(1.25-1.75).

[0151] The third aspect of the present application provides a cigarette, comprising the cigarette tipping paper according to the first aspect or the cigarette tipping paper prepared by the preparation method according to the second aspect.

[0152] Cigarette tipping paper is located at the filter end of the cigarette, and its main function is to connect the cigarette filter and the cigarette.

[0153] The fourth aspect of the present application provides use of the cigarette tipping paper described in the first aspect or the cigarette tipping paper prepared by the preparation method described in the second aspect in preparing cigarettes.

[0154] The cigarette tipping paper containing the anti-adhesive layer is used in the cigarette preparation process, and the cigarettes are rolled and spliced ​​on the PROTOS model of the Putuo brand rolling and splicing machine, with a rolling width of 70mm and a machine speed of 8000 cigarettes / minute.

[0155] In order to make it easier to understand and implement the present invention, the following more specific and detailed embodiments and comparative examples which are easier to implement are provided as references.

[0156] Unless otherwise specified, the raw materials used in the following experiments can be purchased from the market.

[0157] (I) Test method

[0158] The average particle size test method is: NS-90 nanometer particle size analyzer is used for testing.

[0159] Coating hardness test method: Refer to GB / T 6739-2006 pencil method to determine the hardness of the paint film.

[0160] Peel force: Peel off a sample of specified width at a certain speed and angle to measure the average peel force between layers. In this application, the peel force is used to illustrate the adhesion between layers of cigarette tipping paper after rolling. The smaller the peel force, the stronger the anti-adhesion; conversely, the larger the peel force, the weaker the anti-adhesion.

[0161] Adhesion performance test method:

[0162] ① Divide the cigarette tipping paper into 10 groups, each group consists of two sheets of the anti-adhesion cigarette tipping paper of the same size and material; ② Overlap the printed surface and the non-printed surface of the two sheets of the anti-adhesion cigarette tipping paper in each group, and roll them at a uniform speed through a heated plate roller, the plate roller temperature is 100° C., the rolling pressure is 0.4 MPa, and the rolling speed is 5 m / min; ③ Use a peeling force equipment PT-6082 peeling force tester to test the peeling strength of the anti-adhesion cigarette tipping paper that is separated from the adhesion force, taking the average value of 10 groups of data; ④ if the average value of the peeling force of the anti-adhesion cigarette tipping paper is less than or equal to 100gf, it is judged that the anti-adhesion performance of the anti-adhesion cigarette tipping paper is good and it is a qualified product; if the average value of the peeling force of the anti-adhesion cigarette tipping paper is greater than 100gf, it is judged that the anti-adhesion performance of the cigarette tipping paper is poor and it is an unqualified product; if the average value of the peeling force of the anti-adhesion cigarette tipping paper is less than or equal to 50gf, it is judged that the anti-adhesion performance of the cigarette tipping paper is strong and it is a high-quality product.

[0163] (II) Performance evaluation

[0164] (1) Evaluation of cigarette tipping paper: (by cigarette)

[0165] Excellent: The cigarette scrap rate is 0-0.2%;

[0166] Qualified: The cigarette scrap rate is 0.2% to 0.5%;

[0167] Poor: The cigarette scrap rate is greater than 0.5%, the machine cannot be started stably, and obvious problems such as edge warping, air leakage, and wrinkles appear.

[0168] (2) Evaluation of the anti-adhesive properties of cigarette tipping paper:

[0169] Adhesion performance: graded by the numerical range of peel force.

[0170] Excellent: peel force is 0gf~50gf;

[0171] Qualified: Peel force is 50gf~100gf;

[0172] Poor: Peel force greater than 100gf.

[0173] (3) Evaluation of the apparent quality of cigarette tipping paper:

[0174] Excellent: The printed graphics on the surface of the cigarette tipping paper are clear and consistent in depth, consistent with the original design, without obvious defects such as stains and damage, and without blur, tailing, burrs, etc.;

[0175] Qualified: The printed graphics on the surface of the cigarette tipping paper are clear and consistent in depth, basically consistent with the original design, without obvious defects such as stains and damage, and without obvious blur, tailing, burrs, etc.;

[0176] Poor: The printed images and texts on the surface of cigarette tipping paper are not clear, the depth is inconsistent, or there is a gap with the original design, or there are obvious defects such as stains and damage on the surface, and there are defects such as blurring, tailing, and burrs.

[0177] Embodiment 1:

[0178] To prepare anti-adhesive varnish:

[0179] The raw materials were weighed according to mass fractions: 41 parts of water-based resin (18 parts of epoxy resin, 15 parts of polyurethane resin, 8 parts of silicone resin), 8 parts of aluminum sol (pH 3.86, average particle size 40nm), 2 parts of anti-adhesive agent (2 parts of white carbon black), 30 parts of solvent (15 parts of water and 15 parts of ethanol). The above raw materials were stirred at room temperature at 1000 rpm for 0.5 hours and mixed evenly to obtain anti-adhesive varnish.

[0180] Preparation of cigarette tipping paper containing an anti-adhesive layer:

[0181] A base paper layer with a thickness of 45 μm is taken, and an ink layer with a thickness of 2 μm is formed on the first surface thereof; a tactile varnish is applied on the surface of the ink layer on the side away from the base paper layer, and a tactile layer with a thickness of 2 μm is formed after drying; the anti-adhesive varnish is applied to a preset area on the second surface of the base paper layer by an anilox roller, and an anti-adhesive layer with a thickness of 3.8 μm is formed in the preset area after drying (the area where the anti-adhesive layer is formed accounts for 28% of the total area of ​​the second surface of the base paper layer), so as to obtain cigarette tipping paper containing an anti-adhesive layer, and the total thickness of the cigarette tipping paper is 52.8 μm.

[0182] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is 2H and the thickness is 3.8μm. The weight percentages of the water-based resin and the anti-adhesive agent are 79.9% and 11.1% respectively, and the surface density of the aluminum oxide particles is 0.38g / m 2 , the average particle size is 0.3μm.

[0183] Carry out anti-adhesion performance test and appearance quality evaluation.

[0184] The peeling force of the cigarette tipping paper of Example 1 is 23.6 gf, the anti-adhesion performance is excellent, the surface quality is excellent, and the scrap rate on the machine is 0.12%.

[0185] Embodiment 2:

[0186] The preparation methods of the cigarette tipping paper of Example 2 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0187] Anti-adhesive varnish composition:

[0188] The raw materials were weighed according to their mass proportions: 38 parts of aqueous resin (12 parts of aldehyde-ketone resin, 6 parts of silicone resin, 20 parts of acrylic resin), 6 parts of aluminum sol (pH 3.86, average particle size 40 nm), 2.5 parts of anti-adhesive (1 part of oleic acid amide, 1.5 parts of light calcium carbonate), and 30 parts of solvent (12 parts of water, 18 parts of alcohol).

[0189] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1.5 μm, 45 μm and 3 μm respectively (the area forming the anti-adhesive layer accounts for 32% of the total area of ​​the second surface of the base paper layer), and the total thickness is 51.5 μm.

[0190] It is calculated that the thickness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is 2H, in which the weight percentages of water-based resin and anti-adhesive agent are 78% and 14.4% respectively, and the surface density of aluminum oxide particles is 0.21g / m 2 , the average particle size is 0.3μm. Anti-adhesion performance and surface quality evaluation:

[0191] The peeling force of the cigarette tipping paper of Example 2 is 18.8 gf, the anti-adhesion performance is excellent, the surface quality is excellent, and the scrap rate on the machine is 0.08%.

[0192] Embodiment 3:

[0193] The preparation methods of the cigarette tipping paper of Example 3 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0194] Anti-adhesive varnish composition:

[0195] The raw materials were weighed according to their mass fractions: 33 parts of aqueous resin (12 parts of aldehyde-ketone resin, 21 parts of polyurethane resin), 10 parts of aluminum sol (pH 4.2, average particle size 280 nm), 3 parts of anti-adhesive agent (2 parts of white carbon black, 1 part of light calcium carbonate), and 36 parts of solvent (16 parts of water, 20 parts of alcohol).

[0196] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2μm, 1μm, 45μm and 2μm respectively (the area forming the anti-adhesive layer accounts for 20% of the total area of ​​the second surface of the base paper layer), and the total thickness is 50μm.

[0197] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is 2H, the weight percentage of the water-based resin and the anti-adhesive agent are 65.3% and 14.8% respectively, and the surface density of the aluminum oxide particles is 0.4g / m 2 , the average particle size is 3μm.

[0198] Anti-adhesive properties and surface quality evaluation:

[0199] The peeling force of the cigarette tipping paper of Example 3 is 20.1 gf, the anti-adhesion performance is excellent, the surface quality is excellent, and the scrap rate on the machine is 0.15%.

[0200] Embodiment 4:

[0201] The preparation methods of the cigarette tipping paper of Example 4 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0202] Anti-adhesive varnish composition:

[0203] The raw materials were weighed according to their mass fractions: 40 parts of water-based resin (15 parts of polyurethane resin, 10 parts of silicone resin, 15 parts of acrylic resin), 5 parts of aluminum sol (pH 4.2, average particle size 280 nm), 1.5 parts of anti-adhesive agent (1.5 parts of silicone compound), and 24 parts of solvent (12 parts of water, 12 parts of alcohol).

[0204] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1 μm, 45 μm and 2 μm respectively (the area forming the anti-adhesive layer accounts for 35% of the total area of ​​the second surface of the base paper layer), and the total thickness is 50 μm.

[0205] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is H, wherein the weight percentages of the water-based resin and the anti-adhesive agent are 82% and 7.7% respectively, and the surface density of the aluminum oxide particles is 0.41 g / m 2 , the average particle size is 3μm.

[0206] Anti-adhesive properties and surface quality evaluation:

[0207] The peeling force of the cigarette tipping paper of Example 4 is 33.6 gf, the anti-adhesion performance is excellent, the surface quality is excellent, and the scrap rate on the machine is 0.2%.

[0208] Embodiment 5:

[0209] The preparation methods of the cigarette tipping paper of Example 5 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different and the thickness of the touch layer of the cigarette tipping paper is different.

[0210] Anti-adhesive varnish composition:

[0211] The raw materials were weighed according to their mass fractions: 45 parts of water-based resin (20 parts of polyurethane resin, 25 parts of acrylic resin), 8 parts of aluminum sol (pH 4.2, average particle size 280 nm), 5.5 parts of anti-adhesive agent (3 parts of oleic acid amide, 2.5 parts of white carbon black), and 0 parts of solvent.

[0212] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 2 μm, 45 μm and 4.5 μm respectively (the area forming the anti-adhesive layer accounts for 40% of the total area of ​​the second surface of the base paper layer), and the total thickness is 53.5 μm.

[0213] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is 2H, the weight percentage of the water-based resin and the anti-adhesive agent are 67.4% and 20.6% respectively, and the surface density of the aluminum oxide particles is 0.54g / m 2 , the average particle size is 3μm.

[0214] Anti-adhesive properties and surface quality evaluation:

[0215] The peeling force of the cigarette tipping paper of Example 5 is 28.9 gf, the anti-adhesion performance is excellent, the surface quality is excellent, and the scrap rate on the machine is 0.22%.

[0216] Comparative Example 1:

[0217] The preparation methods of the cigarette tipping paper of Comparative Example 1 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0218] Anti-adhesive varnish composition:

[0219] The raw materials were weighed according to the mass proportions: 38 parts of water-based resin (12 parts of aldehyde-ketone resin, 6 parts of silicone resin, 20 parts of acrylic resin), 1 part of aluminum sol, 2 parts of anti-adhesive agent (2 parts of oleic acid amide), and 30 parts of solvent (12 parts of water, 18 parts of alcohol).

[0220] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1 μm, 45 μm and 1.8 μm respectively (the area forming the anti-adhesive layer accounts for 35% of the total area of ​​the second surface of the base paper layer), and the total thickness is 49.8 μm.

[0221] It is calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is B, in which the weight percentages of water-based resin and anti-adhesive agent are 88.9% and 9.7% respectively, and the surface density of aluminum oxide particles is 0.02g / m 2 , the average particle size is 0.3μm.

[0222] Anti-adhesive properties and surface quality evaluation:

[0223] The peeling force of the cigarette tipping paper of Comparative Example 1 was 89.9 gf, the anti-adhesion performance was qualified, the apparent quality was qualified, and the scrap rate on the machine was 0.43%.

[0224] The anti-adhesive performance of comparative document 1 is qualified, but the apparent quality is poor, and the scrap rate on the machine is 0.43%. The possible reasons are that the weight percentage of the hardener in the anti-adhesive varnish is small, the proportion of hard particles in the anti-adhesive layer obtained after drying is small, and there is still adhesion between the layers of the cigarette tipping paper during the rolling process, that is, the anti-adhesive force is small, and the cigarette tipping paper is soft during the rolling process, and the touch layer is easily damaged, resulting in a scrap rate of 0.43%.

[0225] Comparative Example 2:

[0226] The preparation methods of the cigarette tipping paper of Comparative Example 2 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0227] Anti-adhesive varnish composition:

[0228] The raw materials were weighed according to their mass fractions: 38 parts of water-based resin (12 parts of aldehyde-ketone resin, 6 parts of silicone resin, 20 parts of acrylic resin), 0 parts of aluminum sol, 2 parts of anti-adhesive agent (2 parts of oleic acid amide), and 30 parts of solvent (12 parts of water, 18 parts of alcohol).

[0229] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1 μm, 45 μm and 1 μm respectively (the area forming the anti-adhesive layer accounts for 32% of the total area of ​​the second surface of the base paper layer), and the total thickness is 48 μm.

[0230] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is B, wherein the weight percentages of the water-based resin and the anti-adhesive agent are 87.3% and 12.7% respectively, and there are no aluminum oxide particles in the anti-adhesive layer.

[0231] Anti-adhesive properties and surface quality evaluation:

[0232] The peeling force of the cigarette tipping paper of Comparative Example 2 was 145 gf, the anti-adhesion performance was poor, the apparent quality was poor, and the scrap rate on the machine was 3.5%.

[0233] The peeling force of Comparative Example 2 is relatively large, and the anti-adhesion performance is relatively poor. This may be because the thickness of the anti-adhesion layer is relatively small, resulting in a high degree of interlayer adhesion and poor anti-adhesion effect. At the same time, the anti-adhesion layer of Comparative Example 2 does not contain a hardener, which may cause the softer cigarette tipping paper to be more easily damaged and torn during the winding process, resulting in a high scrap rate.

[0234] Comparative Example 3:

[0235] The preparation methods of the cigarette tipping paper of Comparative Example 3 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0236] Anti-adhesive varnish composition:

[0237] The raw materials were weighed according to their mass fractions: 41 parts of water-based resin (18 parts of aldehyde-ketone resin, 15 parts of polyurethane resin, 8 parts of silicone resin), 5 parts of aluminum sol (pH 2.8, average particle size 1 μm), 2 parts of anti-adhesive agent (2 parts of white carbon black), and 30 parts of solvent (15 parts of water, 15 parts of alcohol).

[0238] When the anti-adhesive varnish was applied to the second surface of the base paper layer, it was found that the machine could not be started stably, which may be due to the low pH value and poor stability of the anti-adhesive varnish.

[0239] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1 μm, 45 μm and 1.8 μm respectively (the area forming the anti-adhesive layer accounts for 28% of the total area of ​​the second surface of the base paper layer), and the total thickness is 47 μm.

[0240] It is calculated that the thickness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is H, in which the weight percentages of the water-based resin and the anti-adhesive agent are 78.2% and 10.9% respectively, and the surface density of the aluminum oxide particles is g / m 2 , the average particle size is 6μm.

[0241] Anti-adhesive properties and surface quality evaluation:

[0242] The peeling force of the cigarette tipping paper of Comparative Example 3 was 113.3 gf, the anti-adhesion performance and the surface quality were poor, and the scrap rate on the machine was 3.7%.

[0243] Comparative Example 4:

[0244] The preparation methods of the cigarette tipping paper of Comparative Example 4 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0245] Anti-adhesive varnish composition:

[0246] The raw materials were weighed according to the mass proportions: 18 parts of water-based resin (8 parts of polyurethane resin, 10 parts of acrylic resin), 8 parts of aluminum sol (pH 3.86, average particle size 40 nm), 3 parts of anti-adhesive agent (3 parts of light calcium carbonate), and 0 parts of solvent.

[0247] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1 μm, 45 μm and 1.8 μm respectively (the area forming the anti-adhesive layer accounts for 20% of the total area of ​​the second surface of the base paper layer), and the total thickness is 49.8 μm.

[0248] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is H, wherein the weight percentages of the water-based resin and the anti-adhesive agent are 57.8% and 27.5% respectively, and the surface density of the aluminum oxide particles is 0.26g / m 2 , the average particle size is 0.2μm.

[0249] Anti-adhesive properties and surface quality evaluation:

[0250] The peeling force of the cigarette tipping paper of Comparative Example 4 was 141.5 gf, the anti-adhesion performance was poor, the apparent quality was poor, and the scrap rate on the machine was 2.8%.

[0251] The peeling force of Comparative Example 4 is relatively large, and the anti-adhesion performance is relatively poor. This may be because the content of the water-based resin in the raw material is relatively low, that is, the mass percentage of the water-based resin in the anti-adhesion varnish is relatively low, resulting in poor fluidity of the anti-adhesion varnish, deterioration of the coating process, difficulty in obtaining a predetermined coating density, and even unevenness and floating powder in the anti-adhesion varnish, so that an effective anti-adhesion layer cannot be formed, which ultimately leads to poor anti-adhesion performance of the cigarette tipping paper.

[0252] When the weight percentage of the water-based resin in the anti-adhesive varnish is less than the appropriate range, the fluidity of the anti-adhesive varnish may be poor, the coating process may be deteriorated, it may be difficult to obtain the predetermined coating thickness, and even the anti-adhesive varnish may be uneven and powdery, thereby failing to form an anti-adhesive layer.

[0253] Comparative Example 5:

[0254] The preparation methods of the cigarette tipping paper of Comparative Example 5 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0255] Anti-adhesive varnish composition:

[0256] The raw materials were weighed according to their mass fractions: 40 parts of water-based resin (15 parts of polyurethane resin, 10 parts of silicone resin, 15 parts of acrylic resin), 5 parts of aluminum sol (pH 4.2, average particle size 280 nm), 7 parts of anti-adhesive agent (5 parts of white carbon black), and 24 parts of solvent (12 parts of water, 12 parts of alcohol).

[0257] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1 μm, 45 μm and 2 μm respectively (the area forming the anti-adhesive layer accounts for 35% of the total area of ​​the second surface of the base paper layer), and the total thickness is 50 μm.

[0258] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is H, wherein the weight percentages of the water-based resin and the anti-adhesive agent are 64% and 28% respectively, and the surface density of the aluminum oxide particles is 0.16g / m 2 , the average particle size is 3μm.

[0259] Anti-adhesive properties and surface quality evaluation:

[0260] The peeling force of the cigarette tipping paper of Comparative Example 5 is 30.8 gf, the anti-adhesion performance is excellent, the surface quality is poor, and the machine adaptability / scrap rate is 0.38%.

[0261] The apparent quality of Comparative Example 5 is poor, and there is white powder on the surface of the base paper layer. This may be because the content of the anti-adhesive agent in the raw material is relatively large, that is, the mass percentage of the anti-adhesive agent in the anti-adhesive varnish is relatively high, and the appearance of the white powder is most likely caused by the insufficient wrapping force of the back anti-adhesive layer on the anti-adhesive agent.

[0262] Comparative Example 6:

[0263] The preparation method of the cigarette tipping paper in Comparative Example 6 is basically the same as that in Example 1, except that no anti-adhesive layer is provided, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0264] The ink layer, the touch layer and the base paper layer of the cigarette tipping paper containing the anti-adhesive layer are 2 μm, 1 μm and 45 μm respectively, and the total thickness is 48 μm.

[0265] Anti-adhesive properties and surface quality evaluation:

[0266] The peeling force of the cigarette tipping paper of Comparative Example 6 is 232.1 gf, the anti-adhesion performance is poor, the surface quality is poor, and the scrap rate on the machine is 4.8%.

[0267] In Comparative Example 6, only the base paper layer was used for cigarette tipping paper, which was difficult to peel off during the winding process. This may be because no anti-adhesive layer was provided and the interlayer adhesion of the cigarette tipping paper was serious.

[0268] Comparative Example 7:

[0269] The preparation methods of the cigarette tipping paper of Comparative Example 2 and Example 1 are basically the same, except that the raw material composition of the anti-adhesive varnish is different, and the thicknesses of the touch layer and the anti-adhesive layer of the cigarette tipping paper are different.

[0270] Anti-adhesive varnish composition:

[0271] The raw materials were weighed according to their mass fractions: 38 parts of water-based resin (12 parts of aldehyde-ketone resin, 6 parts of silicone resin, 20 parts of acrylic resin), 2 parts of alumina powder (average particle size 3 μm), 2.5 parts of anti-adhesive agent (1 part of oleic acid amide, 1.5 parts of light calcium carbonate), and 30 parts of solvent (12 parts of water, 18 parts of alcohol).

[0272] The thicknesses of the ink layer, tactile layer, base paper layer and anti-adhesive layer of the cigarette plugging paper containing an anti-adhesive layer are 2 μm, 1.5 μm, 45 μm and 3 μm respectively (the area forming the anti-adhesive layer accounts for 32% of the total area of ​​the second surface of the base paper layer), and the total thickness is 51.5 μm.

[0273] It has been calculated that the hardness of the anti-adhesive layer formed after the anti-adhesive varnish is dried is B, in which the weight percentages of water-based resin and anti-adhesive agent are 75.2% and 13.8% respectively, and the surface density of aluminum oxide particles is 0.34g / m 2 , the average particle size is 3μm.

[0274] Anti-adhesive properties and surface quality evaluation:

[0275] The peeling force of the cigarette tipping paper of Comparative Example 7 is 82.3gf, the anti-adhesion performance is qualified, the apparent quality is excellent, and the scrap rate on the machine is 0.65%. The scrap rate of cigarettes in Comparative Example 7 is relatively high, which is 0.65%, as shown in the following. This may be because the aluminum oxide hard particles added to the raw materials are unevenly dispersed in the anti-adhesion varnish, the anti-adhesion layer formed is unevenly composed, and the anti-adhesion layer has unevenly distributed defect points, which cannot effectively improve the hardness of the anti-adhesion layer. At the same time, a small amount of white powder also appears in the cigarette tipping paper, which may be caused by the insufficient wrapping force of the back anti-adhesion layer on the aluminum oxide particles.

[0276] Table 1 Composition of anti-adhesive varnish of Examples 1 to 5 and Comparative Examples 1 to 7

[0277]

[0278] Table 2 Composition and performance evaluation of cigarette tipping paper of Examples 1 to 5 and Comparative Examples 1 to 7

[0279]

[0280] Note: The anti-adhesive layer ratio refers to the ratio of the anti-adhesive layer area to the total area of ​​the base paper layer.

[0281] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0282] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims, and the description and drawings can be used to interpret the content of the claims.

Claims

1. A cigarette tipping paper containing an anti-adhesive layer, characterized in that: It includes a touch layer, an ink layer, a base paper layer and an anti-adhesive layer stacked in sequence; Wherein, the anti-adhesive layer contains aluminum oxide particles, water-based resin and anti-adhesive agent; The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 5% to 20%; the weight percentage of the water-based resin in the anti-adhesive layer is 60% to 90%; the weight percentage of the anti-adhesive agent in the anti-adhesive layer is 5% to 22%; The thickness of the touch layer is 0.5 μm to 2 μm, the thickness of the base paper layer is 30 μm to 70 μm, and the thickness of the anti-adhesive layer is 2 μm to 10 μm; The surface density of the aluminum oxide particles in the anti-adhesive layer is 0.1 g / m 2 ~1.5g / m 2 .

2. The cigarette tipping paper according to claim 1, characterized in that: Satisfy one or more of the following characteristics: The average particle size of the aluminum oxide particles is 0.1-4 μm; The surface density of the aluminum oxide particles in the anti-adhesive layer is 0.15 g / m 2 ~1.0g / m 2 ; The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 6% to 20%; The hardness of the anti-adhesive layer is H-2H.

3. The cigarette tipping paper according to claim 1 or 2, characterized in that: Satisfy one or more of the following characteristics: The water-based resin is selected from one or more of aldehyde-ketone resin, polyurethane resin, silicone resin and acrylic resin; The weight percentage of the aqueous resin in the anti-adhesive layer is 65% to 85%; The anti-adhesive agent is selected from one or more of oleic acid amide, organosilicon compound, white carbon black and light calcium carbonate; The weight percentage of the anti-adhesive agent in the anti-adhesive layer is 7% to 21%.

4. The cigarette tipping paper according to claim 1, characterized in that: The thickness of the touch layer is 1 μm to 2 μm, the thickness of the ink layer is 0.5 μm to 3 μm, the thickness of the base paper layer is 40 μm to 60 μm, and the thickness of the anti-adhesive layer is 2 μm to 7 μm.

5. A method for preparing a cigarette tipping paper containing an anti-adhesive layer, characterized in that: The following steps are involved: Providing a base paper layer; wherein the base paper layer has a first surface and a second surface that are opposite to each other; forming an ink layer on the first surface of the base paper layer; forming a touch layer on a surface of the ink layer at a side away from the base paper layer; Applying anti-adhesive varnish to a preset area on the second surface of the base paper layer, and drying to form an anti-adhesive layer in the preset area, thereby obtaining cigarette plugging paper; wherein the anti-adhesive varnish comprises a hardener, an aqueous resin and an anti-adhesive agent; and the hardener comprises an aluminum oxide component; The weight percentage of the aluminum oxide particles in the anti-adhesive layer is 5% to 20%; the weight percentage of the water-based resin in the anti-adhesive layer is 60% to 90%; the weight percentage of the anti-adhesive agent in the anti-adhesive layer is 5% to 22%; The thickness of the touch layer is 0.5 μm to 2 μm, the thickness of the base paper layer is 30 μm to 70 μm, and the thickness of the anti-adhesive layer is 2 μm to 10 μm; The surface density of the aluminum oxide particles in the anti-adhesive layer is 0.1 g / m 2 ~1.5g / m 2 .

6. The method for preparing cigarette tipping paper according to claim 5, characterized in that: Satisfy one or more of the following characteristics: The anti-adhesive varnish comprises, by weight, 5 to 10 parts of a hardener, 30 to 55 parts of an aqueous resin, 0.5 to 5.5 parts of an anti-adhesive agent, and 20 to 40 parts of a solvent; The ratio of the coating area of ​​the anti-adhesive varnish on the base paper layer to the total area of ​​the base paper layer is (0.15-0.5):1; The coating amount of the anti-adhesive varnish on the base paper layer is 1 g / m 2 ~5g / m 2 .

7. The method for preparing cigarette tipping paper according to claim 6, characterized in that: Satisfy one or more of the following characteristics: The hardener is aluminum sol; The pH value of the hardener is 3 to 6.5; The average particle size of the hardener is 20 to 1000 nm; The solvent is a mixture of ethanol and water, wherein the mass ratio of water to ethanol is 1:(1-2).

8. The method for preparing cigarette tipping paper according to claim 5, characterized in that: The cigarette tipping paper comprising an anti-adhesive layer is the cigarette tipping paper according to any one of claims 1 to 4.

9. A cigarette, characterized in that: The invention comprises the cigarette tipping paper according to any one of claims 1 to 4 or the cigarette tipping paper prepared by the preparation method according to any one of claims 5 to 7.

10. Use of the cigarette tipping paper according to any one of claims 1 to 4 or the cigarette tipping paper prepared by the preparation method according to any one of claims 5 to 7 in the preparation of cigarettes.

Images