Imitation aluminizing cigarette tipping paper, preparation method thereof and cigarette

Abstract

The invention relates to imitated aluminized tipping paper for cigarettes, a preparation method of the imitated aluminized tipping paper and the cigarettes. The imitation aluminized cigarette tipping paper comprises a base material, a barrier layer, an imitation aluminized layer and a leveling layer, the blocking layer is located on one side of the base material, the leveling layer is located on the side, away from the base material, of the blocking layer, and the imitation aluminum plating layer is located between the blocking layer and the leveling layer. The imitation aluminum plating layer comprises aluminum powder; the barrier layer comprises highlight resin, and the highlight resin comprises one or more of nitrocellulose resin, aldehyde ketone resin, modified rosin resin and vinyl chloride-vinyl acetate resin; the leveling layer comprises water-based resin I, and the water-based resin I comprises one or more of water-based acrylic resin, water-based polycarbonate resin and water-based polyurethane resin. According to the tipping paper for the imitation aluminized cigarette, the barrier layer, the imitation aluminized layer and the leveling layer which support each other in function are arranged on the base material, so that the tipping paper for the imitation aluminized cigarette is endowed with good metal texture and excellent color adhesion ability.

Description

Technical Field

[0001] This application relates to the field of packaging paper technology, and in particular to imitation aluminized cigarette tipping paper and its preparation method, and cigarettes. Background Technology

[0002] Tipping paper, also known as cork paper, is located between the filter and the main body of a cigarette, serving to connect, fix, and guide airflow. It is one of the key materials in cigarette packaging. With the development of the tobacco industry and the improvement of consumers' aesthetics, tipping paper has evolved from a basic structure providing binding functions to a multi-purpose structure providing decorative effects. Its surface effect directly affects the overall visual appeal and attractiveness of cigarette products.

[0003] Metallized cigarette tipping paper boasts an excellent metallic surface texture and good surface printing performance, making its products widely popular among consumers. However, the traditional metallization process for metallized cigarette tipping paper requires melting aluminum strips at high temperatures to form aluminum vapor, followed by deposition or spraying to create the metallized layer. This process also necessitates complementary steps such as coating release, adhesive layer application, lamination, and peeling, resulting in a complex and costly process. Therefore, developing a simple, low-cost, and aesthetically pleasing imitation metallized cigarette tipping paper has become a key research focus in the tobacco packaging industry. Summary of the Invention

[0004] Therefore, it is necessary to provide a tipping paper for cigarettes with strong surface color adhesion and good metallic texture, as well as its preparation method and cigarettes.

[0005] The first aspect of this application is to provide a tipping paper for imitation aluminum-plated cigarettes.

[0006] A tipping paper for cigarettes with an aluminum plating finish includes a substrate, a barrier layer, an aluminum plating finish, and a leveling layer; the barrier layer is located on one side of the substrate, the leveling layer is located on the side of the barrier layer away from the substrate, and the aluminum plating finish is located between the barrier layer and the leveling layer.

[0007] The raw materials for preparing the simulated aluminum plating layer include aluminum powder;

[0008] The raw materials for preparing the barrier layer include high-gloss resin, which includes one or more of nitrocellulose resin, aldehyde-ketone resin, modified rosin resin, and chloroacetic acid resin.

[0009] The raw materials for preparing the leveling layer include water-based resin I, which includes one or more of water-based acrylic resin, water-based polycarbonate resin, and water-based polyurethane resin.

[0010] In some embodiments, the raw materials for preparing the simulated aluminum plating layer, by weight, include:

[0011] Waterborne resin II 2.5 parts to 4 parts

[0012] 0.5 to 3 parts aluminum powder

[0013] Additive I 0.2 to 2.5 parts, and

[0014] Solvent I: 2.5 to 10 parts;

[0015] Solvent I includes one or more of water and ethanol;

[0016] The additive I includes one or more of the following: leveling agent, adhesion promoter, dispersant, and defoamer;

[0017] The waterborne resin II includes one or more of waterborne acrylic resin, waterborne polycarbonate resin, and waterborne polyurethane resin.

[0018] In some embodiments, the aluminum powder has a D50 of 0.2 μm to 0.6 μm.

[0019] In some embodiments, the raw materials for preparing the barrier layer, by weight, include:

[0020] 2 to 5 parts of high-gloss resin

[0021] Additive II 0.2 parts to 1.6 parts, and

[0022] Solvent II 2 to 4 parts;

[0023] Solvent II includes ethyl acetate;

[0024] The additive II includes one or more of adhesion promoters and leveling agents.

[0025] In some embodiments, the raw materials for preparing the leveling layer, by weight, include:

[0026] Water-based resin I 2 to 5 parts

[0027] Additive III 0.1 to 0.6 parts, and

[0028] Solvent III: 8 to 15 parts;

[0029] Solvent III includes one or more of water and ethanol;

[0030] Additive III includes one or more of adhesion promoters and leveling agents.

[0031] In some embodiments, the leveling agent in additive I, additive II, and additive III each independently comprises one or more of polyether-modified polydimethylsiloxane, polyether-modified polysiloxane polymer, and acrylate homopolymer; and / or

[0032] The adhesion promoters in Additive I, Additive II, and Additive III each independently include one or more of 3-aminopropyltriethoxysilane, 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and titanate coupling agents.

[0033] In some embodiments, the imitation aluminum-coated cigarette tipping paper further includes a color layer located on the side of the leveling layer away from the barrier layer.

[0034] In a second aspect, this application provides a method for preparing a tipping paper for imitation aluminized cigarettes.

[0035] A method for preparing the above-mentioned imitation aluminized cigarette tipping paper includes the following steps:

[0036] A barrier layer slurry is prepared, the barrier layer slurry comprising a high-gloss resin, the barrier layer slurry is coated on one side surface of a substrate, and dried to form the barrier layer;

[0037] A slurry for preparing an aluminum plating layer is prepared, the slurry comprising aluminum powder. The slurry is coated on at least a portion of the surface of the barrier layer on the side away from the substrate, and then dried to form the aluminum plating layer.

[0038] A leveling layer slurry is prepared, the leveling layer slurry comprising an aqueous resin I, the leveling layer slurry is coated on the surface of the simulated aluminum plating layer away from the substrate, and dried to form the leveling layer.

[0039] In some embodiments, the coating amount of the barrier layer slurry is 1 g / m². 2 ~1.6g / m 2 ;

[0040] And / or, the coating amount of the aluminum plating slurry is 1.5 g / m². 2 ~2.5g / m 2 ;

[0041] And / or, the coating amount of the leveling layer slurry is 0.6 g / m². 2 ~1g / m 2 .

[0042] In a third aspect, this application provides a cigarette comprising the aforementioned imitation aluminized cigarette tipping paper or the imitation aluminized cigarette tipping paper prepared by the aforementioned preparation method.

[0043] The aforementioned imitation aluminized cigarette tipping paper, by incorporating a barrier layer, an imitation aluminized layer, and a leveling layer that support each other on the substrate, endows it with a good metallic texture and excellent color adhesion. The barrier layer provides a strong bond between the substrate and the imitation aluminized layer while preventing the imitation aluminized layer from penetrating the substrate, resulting in a smoother overall surface and enhanced metallic texture. Simultaneously, the barrier layer effectively improves the smoothness and gloss of the substrate surface, thereby enhancing the gloss of the imitation aluminized layer and creating a high-gloss metallic mirror effect. The leveling layer improves the leveling properties of the imitation aluminized layer, giving inks good printability on the imitation aluminized layer, and also providing excellent ink adhesion, making the imitation aluminized cigarette tipping paper promising for future applications. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic cross-sectional view of the tipping paper for imitation aluminum-plated cigarettes according to one embodiment of this application.

[0046] Figure 2 This is a schematic diagram of the cross-sectional structure of the tipping paper for aluminum-plated cigarettes according to another embodiment of this application.

[0047] Figure 3 This is a flowchart illustrating the preparation process of the imitation aluminum-plated cigarette tipping paper according to one embodiment of this application.

[0048] Figure 4 This is the imitation aluminum-plated cigarette tipping paper of Embodiment 1 of this application.

[0049] Figure Labels

[0050] 100, Substrate; 200, Barrier Layer; 300, Imitation Aluminum Coating Layer; 400, Leveling Layer; 500, Color Layer. Detailed Implementation

[0051] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, a detailed description of specific embodiments of this application is provided below. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0052] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. In this application, "at least one" means one or more, such as one, two, or more than two. "Multiple" or "several" means at least two, such as two, three, etc.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0054] When a numerical range is disclosed herein, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to integers, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are incorporated.

[0055] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the method may also include step (c), indicating that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0056] In this application, "above" or "below" includes the number itself. For example, "below 1" includes 1.

[0057] Unless otherwise specified, the viscosity parameters in this application refer to the viscosity measured at 25°C.

[0058] Unless otherwise specified, the average molecular weight of polymers used in this application refers to weight-average molecular weight.

[0059] Unless otherwise specified, the temperature parameters in this application are permitted to be either constant-temperature treatment or variations within a certain temperature range. It should be understood that the constant-temperature treatment allows temperature fluctuations within the precision range of the instrument control, such as ±5℃, ±4℃, ±3℃, ±2℃, or ±1℃.

[0060] In a first aspect, this application provides a simulated aluminum-plated cigarette tipping paper with an aluminum-plated texture and excellent color adhesion on its surface.

[0061] For example, please see Figure 1 and 2 , Figure 1 , 2 This is a cross-sectional structural diagram of the imitation aluminized cigarette tipping paper of this application. The imitation aluminized cigarette tipping paper of this application includes a substrate 100, a barrier layer 200, an imitation aluminized layer 300, and a leveling layer 400. The barrier layer 200 is located on one side of the substrate 100, the leveling layer 400 is located on the side of the barrier layer 200 away from the substrate 100, and the imitation aluminized layer 300 is located between the barrier layer 200 and the leveling layer 400. Optionally, the imitation aluminized layer 300 may only exist in a portion of the area between the barrier layer 200 and the leveling layer 400, such as... Figure 1 As shown, the imitation aluminum plating layer 300 is located on a portion of the surface of the barrier layer 200. The leveling layer 400 fills the gaps where the imitation aluminum plating layer 300 is not coated and improves the surface smoothness of the imitation aluminum plating layer 300, forming a smooth outer surface. This allows the outer surface to have good leveling properties when ink is applied. In another embodiment, the imitation aluminum plating layer 300 can serve as a full-coverage layer, completely separating the barrier layer 200 and the leveling layer 400. Figure 2 The situation is shown below. The specific distribution of the imitation aluminum plating layer 300 can be selected according to actual needs.

[0062] In this embodiment, the raw materials for preparing the simulated aluminum plating layer 300 include aluminum powder. By achieving a mirror-like metallic effect through printing aluminum powder paste, thereby providing an aluminum plating texture, the process difficulty can be reduced, effectively lowering production costs.

[0063] In this embodiment, the raw materials for preparing the barrier layer 200 include a high-gloss resin, which includes one or more of nitrocellulose resin, aldehyde-ketone resin, modified rosin resin, and chloroacetic acid resin. The aforementioned high-gloss resin can effectively prevent the imitation aluminum plating layer 300 from penetrating the substrate 100, avoiding deformation of the paper fibers in the substrate 100 that would degrade the effect of the imitation aluminum plating layer 300. Simultaneously, the high-gloss resin can effectively improve the smoothness and gloss of the substrate 100 surface, enhancing the leveling effect and metallic mirror effect of the imitation aluminum plating layer 300.

[0064] In this embodiment, the raw material for preparing the leveling layer 400 includes water-based resin I, which includes one or more of water-based acrylic resin, water-based polycarbonate resin, and water-based polyurethane resin. The aforementioned water-based resin I can improve the leveling properties and gloss of the aluminum-plated layer 300, giving the aluminum-plated cigarette tipping paper a good ink leveling effect.

[0065] The aforementioned aluminum-plated cigarette tipping paper, by incorporating a barrier layer 200, an aluminum-plated layer 300, and a leveling layer 400 on a substrate 100, imparts a good metallic texture, excellent color effects, and adhesion. Specifically, the barrier layer 200 strongly connects the substrate 100 and the aluminum-plated layer 300, preventing the aluminum-plated layer 300 from penetrating the substrate 100, resulting in a smoother overall surface and enhanced metallic texture. Simultaneously, the barrier layer 200 effectively improves the smoothness and gloss of the substrate 100 surface, thereby enhancing the gloss of the aluminum-plated layer 300 and creating a high-gloss metallic mirror effect. The leveling layer 400 improves the leveling properties of the aluminum-plated layer 300, giving the aluminum-plated cigarette tipping paper excellent ink leveling and adhesion, allowing for further color processing as needed.

[0066] In some embodiments, the raw materials for preparing the aluminum plating layer 300, by weight, include:

[0067] Waterborne resin II 2.5 parts to 4 parts

[0068] 0.5 to 3 parts aluminum powder

[0069] Additive I 0.2 to 2.5 parts, and

[0070] Solvent I: 2.5 to 10 parts;

[0071] Solvent I includes one or more of water and ethanol; waterborne resin II includes one or more of waterborne acrylic resin, waterborne polycarbonate resin and waterborne polyurethane resin; and additive I includes one or more of leveling agent, adhesion promoter, dispersant and defoamer.

[0072] Optionally, the content of waterborne resin II in the raw materials for preparing the imitation aluminum plating layer 300, by weight, can be, but is not limited to, 2.5 parts, 3 parts, 3.5 parts, 4 parts, or other values ​​within the range of 2.5 parts to 4 parts.

[0073] Optionally, the content of aluminum powder in the raw materials for preparing the imitation aluminum plating layer 300, by weight, can be, but is not limited to, 0.5 parts, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, or other values ​​within the range of 0.5 parts to 3 parts.

[0074] Optionally, the content of additive I in the raw materials for preparing the imitation aluminum plating layer 300, by weight, can be, but is not limited to, 0.2 parts, 1 part, 1.5 parts, 2 parts, 2.5 parts, or other values ​​within the range of 0.2 parts to 2.5 parts.

[0075] Optionally, the content of solvent I in the raw materials for preparing the imitation aluminum plating layer 300, by weight, can be, but is not limited to, 2.5 parts, 5 parts, 7.5 parts, 10 parts, or other values ​​within the range of 2.5 parts to 10 parts.

[0076] In some embodiments, the raw materials for preparing the imitation aluminum plating layer 300 include 8 to 36 parts of water and 2 to 4 parts of ethanol by weight.

[0077] In some embodiments, the raw materials for preparing the imitation aluminum plating layer 300 include, by weight, 0.2 to 1 part of dispersant, 0.2 to 1 part of leveling agent, 0.2 to 1 part of adhesion promoter, and 0.1 to 0.5 parts of defoamer.

[0078] In some embodiments, the D50 of the aluminum powder is 0.2 μm to 0.6 μm. Optionally, the D50 of the aluminum powder can be, but is not limited to, 0.2 μm, 0.3 μm, 0.4 μm, 0.5 μm, 0.6 μm, or other values ​​within the range of 0.2 μm to 0.6 μm.

[0079] In some embodiments, the raw materials for preparing the barrier layer 200, by weight, include:

[0080] 2 to 5 parts of high-gloss resin

[0081] Additive II 0.2 parts to 1.6 parts, and

[0082] Solvent II 2 to 4 parts;

[0083] Among them, Additive II includes one or more of adhesion promoters and leveling agents.

[0084] Optionally, the content of high-gloss resin in the raw materials for preparing the barrier layer 200, by weight, can be, but is not limited to, 2 parts, 3 parts, 4 parts, 5 parts, or other values ​​within the range of 2 to 5 parts.

[0085] Optionally, the content of additive II in the raw materials for preparing the barrier layer 200, by weight, can be, but is not limited to, 0.2 parts, 0.6 parts, 1 part, 1.3 parts, 1.6 parts, or other values ​​in the range of 0.2 parts to 1.6 parts.

[0086] Optionally, the content of solvent II in the raw materials for preparing the barrier layer 200, by weight, can be, but is not limited to, 2 parts, 3 parts, 4 parts, or other values ​​within the range of 2 to 4 parts.

[0087] In some of these embodiments, solvent II comprises ethyl acetate.

[0088] In some embodiments, the raw materials for preparing the barrier layer 200 include 0.2 to 0.8 parts by weight of an adhesion promoter and 0.2 to 0.8 parts by weight of a leveling agent.

[0089] In some embodiments, the raw materials for preparing the leveling layer 400, by weight, include:

[0090] Water-based resin I 2 to 5 parts

[0091] Additive III 0.1 to 0.6 parts, and

[0092] Solvent III: 8 to 15 parts;

[0093] Among them, Additive III includes one or more of adhesion promoters and leveling agents;

[0094] Solvent III includes one or more of water and ethanol.

[0095] Optionally, the content of waterborne resin I in the raw materials for preparing leveling layer 400, by weight, can be, but is not limited to, 2 parts, 3 parts, 4 parts, 5 parts, or other values ​​within the range of 2 to 5 parts.

[0096] Optionally, the content of additive III in the raw materials for preparing leveling layer 400, by weight, can be, but is not limited to, 0.1 parts, 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, or other values ​​in the range of 0.1 parts to 0.6 parts.

[0097] Optionally, the content of solvent III in the raw materials for preparing leveling layer 400, by weight, can be, but is not limited to, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, or other values ​​within the range of 8 to 15 parts.

[0098] In some embodiments, the raw materials for preparing the leveling layer 400 include 6 to 12 parts of water and 2 to 4 parts of ethanol by weight.

[0099] In some embodiments, the raw materials for preparing the leveling layer 400 include 0.05 to 0.1 parts by weight of leveling agent and 0.1 to 0.5 parts by weight of adhesion promoter.

[0100] In some embodiments, the leveling agents in Additive I, Additive II, and Additive III are each independently one or more of polyether-modified polydimethylsiloxane, polyether-modified polysiloxane polymer, and acrylate homopolymer.

[0101] In some embodiments, the adhesion promoters in Additives I, II, and III each independently include one or more of 3-aminopropyltriethoxysilane, 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and titanate coupling agents. Studies have shown that using the above-mentioned adhesion promoters can better bond the substrate 100 and high-gloss resin and water-based resin materials, making the layers less prone to peeling off, thereby improving the aluminum plating effect and increasing durability.

[0102] In some embodiments, the tipping paper for imitation aluminum-coated cigarettes also includes a color layer 500, which is located on at least a portion of the surface of the leveling layer 400 on the side away from the barrier layer 200.

[0103] In a second aspect, this application provides a method for preparing a tipping paper for imitation aluminized cigarettes.

[0104] For example, please see Figure 3 , Figure 3 This is a flowchart illustrating the preparation process of the imitation aluminized cigarette tipping paper according to one embodiment of this application. The preparation method of the imitation aluminized cigarette tipping paper includes the following steps:

[0105] S1. Prepare barrier layer 200 slurry, which includes high gloss resin. The barrier layer 200 slurry is coated on one side surface of substrate 100 and dried to form barrier layer 200.

[0106] S2. Prepare an aluminum plating layer 300 slurry, which includes aluminum powder. Coat at least a portion of the surface of the barrier layer 200 away from the substrate 100 with the aluminum plating layer 300 slurry and dry it to form an aluminum plating layer 300.

[0107] S3. Prepare a leveling layer 400 slurry, which includes an aqueous resin I. The leveling layer 400 slurry is coated on the surface of the imitation aluminum layer 300 away from the substrate 100 and dried to form the leveling layer 400. It can be understood that if the imitation aluminum layer 300 is formed only on the part of the barrier layer 200 away from the substrate 100, then when the leveling layer 400 slurry is coated, the leveling layer 400 slurry will be coated on the imitation aluminum layer 300 and the barrier layer 200 without the imitation aluminum layer 300, and finally form a flush leveling layer 400.

[0108] In some embodiments, a slurry of an aluminum-plated layer 300 is applied to the surface of the barrier layer 200 away from the substrate 100 and dried to form the aluminum-plated layer 300.

[0109] A leveling layer 400 slurry is applied to the surface of the imitation aluminum plating layer 300 away from the barrier layer 200, and then dried to form the leveling layer 400.

[0110] In some embodiments, the leveling layer 400 is obtained by gravure printing and drying.

[0111] In some embodiments, the coating amount of the barrier layer 200 slurry is 1 g / m². 2 ~1.6g / m 2 Optionally, the coating amount of the raw material for preparing the barrier layer 200 can be, but is not limited to, 1 g / m³. 2 1.1g / m 2 1.2g / m 2 1.3g / m 2 1.4g / m 2 1.5g / m 2 1.6g / m 2 Or 1g / m 2 ~1.6g / m 2 Other values ​​within the range.

[0112] In some embodiments, the coating amount of the aluminum plating slurry is 1.5 g / m². 2 ~2.5g / m 2 Optionally, the coating amount of the raw material used to prepare the aluminum plating layer can be, but is not limited to, 1.5 g / m². 2 1.6g / m 2 1.7g / m 2 1.8g / m 2 1.9g / m 2 2g / m 2 2.1g / m 2 2.2g / m 2 2.3g / m 2 2.4g / m 2 2.5g / m 2 Or 1.5g / m 2 ~2.5g / m 2 Other values ​​within the range.

[0113] In some embodiments, the coating amount of the leveling layer 400 slurry is 0.6 g / m². 2 ~1g / m 2 Optionally, the coating amount of the raw material for preparing the leveling layer 400 can be, but is not limited to, 0.6 g / m². 2 0.7g / m 2 0.8g / m 2 0.9g / m 2 1g / m 2 Or 0.6g / m 2 ~1g / m 2 Other values ​​within the range.

[0114] In some embodiments, the method for preparing the tipping paper for imitation aluminized cigarettes includes:

[0115] A color layer 500 is prepared on the surface of the leveling layer 400 away from the aluminum plating layer 300.

[0116] Optionally, the color layer 500 can be formed by gravure printing ink and drying.

[0117] In a third aspect, this application provides a cigarette comprising the aforementioned imitation aluminized cigarette tipping paper or the imitation aluminized cigarette tipping paper prepared by the aforementioned preparation method.

[0118] The present application will be further described in detail below with reference to specific embodiments.

[0119] Unless otherwise specified, the raw materials used in the following specific embodiments and comparative examples are all commercially available products; the instruments used are all commercially available products; and the processes used are all conventionally selected by those skilled in the art unless otherwise specified.

[0120] Example 1

[0121] This embodiment provides a tipping paper for imitation aluminized cigarettes. Please refer to [link / reference]. Figure 2 In this embodiment, the imitation aluminum-plated cigarette tipping paper is formed by sequentially stacking a substrate 100, a barrier layer 200, an imitation aluminum-plated layer 300, and a leveling layer 400. Please refer to [link / reference]. Figure 4 , Figure 4 This is a photograph of the actual aluminum-plated cigarette tipping paper used in this embodiment.

[0122] The preparation method of the imitation aluminized cigarette tipping paper in this embodiment is as follows:

[0123] A barrier layer 200 slurry is coated on one side of the substrate 100, with a coating amount of 1.3 g / m². 2 After drying, a barrier layer 200 is formed;

[0124] A slurry imitation aluminum plating layer 300 is coated on the surface of the barrier layer 200 away from the substrate 100, with a coating amount of 2g / m². 2 After drying, a 300-layer aluminum-plated imitation layer is formed;

[0125] A leveling layer slurry 400 is applied to the surface of the imitation aluminum plating layer 300 on the side furthest from the substrate 100, with a coating amount of 0.8 g / m². 2 After drying, a leveling layer of 400 is formed;

[0126] By gravure printing and drying the ink, a color layer 500 is prepared on the surface of the leveling layer 400 away from the imitation aluminum layer 300, thus obtaining the tipping paper for imitation aluminum cigarettes.

[0127] The barrier layer 200 slurry is composed of 4 parts of nitrocellulose resin (AHJY1-8), 3 parts of ethyl acetate, 0.5 parts of adhesion promoter (3-(2,3-epoxypropoxy)propyltrimethoxysilane TB-450) and 0.5 parts of leveling agent (BYK-3410).

[0128] The 300 slurry for the imitation aluminum plating layer is composed of 3 parts of water-based acrylic resin (ROACRYL 818), 1 part of aluminum powder (D50 is 0.5μm), 0.5 parts of dispersant (BYK-2012), 0.5 parts of leveling agent (BYK-3410), 0.6 parts of adhesion promoter (3-aminopropyltriethoxysilane TB-440), 0.3 parts of defoamer (BYK-024), 5 parts of water, and 2 parts of ethanol.

[0129] The leveling layer 400 slurry is composed of 4 parts of water-based acrylic resin (ROACRYL 706), 0.1 parts of leveling agent (BYK-3410), 0.3 parts of adhesion promoter (3-aminopropyltriethoxysilane TB-440), 10 parts of water, and 2 parts of ethanol.

[0130] Example 2

[0131] This embodiment provides a tipping paper for imitation aluminum-plated cigarettes.

[0132] The difference between this embodiment and Example 1 is that the barrier layer 200 slurry is composed of 4 parts of high-gloss resin, 3.5 parts of ethyl acetate and 0.5 parts of leveling agent.

[0133] Comparative Example 1

[0134] This comparative example provides a tipping paper for imitation aluminum-plated cigarettes.

[0135] The difference between this comparative example and Example 1 is that the imitation aluminum-plated cigarette tipping paper does not contain the barrier layer 200, and the imitation aluminum-plated layer 300 is directly formed on the surface of the substrate 100.

[0136] Comparative Example 2

[0137] This comparative example provides a tipping paper for imitation aluminum-plated cigarettes.

[0138] The difference between this comparative example and Example 1 is that the imitation aluminum-plated cigarette tipping paper does not contain the leveling layer 400, and the color layer 500 is formed directly on the surface of the imitation aluminum-plated layer 300.

[0139] Comparative Example 3

[0140] This comparative example provides a tipping paper for imitation aluminum-plated cigarettes.

[0141] The difference between this comparative example and Example 1 is that the barrier layer 200 slurry is composed of 4 parts polyvinyl butyral resin, 24 parts ethanol, 0.5 parts adhesion promoter and 0.5 parts leveling agent.

[0142] Test case

[0143] Performance tests were conducted on the imitation aluminized cigarette tipping paper of the examples and comparative examples. The test results are shown in Table 1. The specific test methods are as follows:

[0144] Appearance: Visually evaluate the appearance of the imitation aluminized cigarette tipping paper product under standard light source (CIE standard light source box).

[0145] Adhesion strength: Using 3M transparent tape, it is tightly adhered to the ink-printed surface of the substrate 100. After holding for 5 seconds, the transparent tape is peeled off, and the phenomenon of the imitation aluminum plating layer 300 and the color layer 500 falling off is observed. This is repeated 3 times.

[0146] Gloss: The gloss of the aluminum plating layer 300 on the substrate layer 100 was tested using a gloss meter (60°), and repeated 3 times.

[0147] Water resistance: Cut the imitation aluminum-plated cigarette tipping paper product into test samples of 50 mm × 50 mm, place them in a beaker containing distilled water, and place them in a constant temperature oven at 40℃ for 3 hours. Remove them and observe whether there is any discoloration or aluminum loss in the water in the beaker. Wipe the surface of the product with a dry paper towel 5 times and observe whether there is any discoloration or aluminum loss on the dry paper towel.

[0148] Table 1. Performance test results of the simulated aluminized cigarette tipping paper in the examples and comparative examples.

[0149]

[0150] As shown in Table 1, Comparative Example 1's imitation aluminum-plated cigarette tipping paper does not contain a barrier layer 200. By directly forming the imitation aluminum-plated layer 300 on the surface of the substrate 100, the imitation aluminum-plated layer 300 exhibits varying degrees of penetration. This not only significantly reduces the metallic texture and gloss of the imitation aluminum-plated layer 300 but also adversely affects the adhesion of the subsequent color layer 500. Comparative Example 2 does not have a leveling layer 400. By directly attaching the color layer 500 to the imitation aluminum-plated layer 300 and the barrier layer 200, the adhesion and color performance of the color layer 500 are significantly affected, and aluminum flaking occurs, resulting in poor performance. In Comparative Example 3, the barrier layer 200 slurry uses polyvinyl butyral resin, which has poor barrier properties against the imitation aluminum-plated layer 300. The imitation aluminum-plated layer 300 still exhibits penetration and unevenness, resulting in poor metallic texture and gloss of the obtained imitation aluminum-plated cigarette tipping paper. Meanwhile, the aluminum-plated cigarette tipping paper of Examples 1 and 2 achieves a good metallic texture and excellent color adhesion by setting a barrier layer 200, an aluminum-plated layer 300, a leveling layer 400 and a color layer 500 with specific components that support each other on the substrate 100. The resulting aluminum-plated cigarette tipping paper has a good appearance and water resistance and has good application prospects.

[0151] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0152] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this invention patent should be determined by the appended claims, and the specification can be used to interpret the content of the claims.

Claims

1. A type of tipping paper for imitation aluminum-plated cigarettes, characterized in that, It includes a substrate, a barrier layer, an aluminum-plated imitation layer, and a leveling layer; the barrier layer is located on one side of the substrate, the leveling layer is located on the side of the barrier layer away from the substrate, and the aluminum-plated imitation layer is located between the barrier layer and the leveling layer; The raw materials for preparing the simulated aluminum plating layer include aluminum powder; The raw materials for preparing the barrier layer include high-gloss resin, which includes one or more of nitrocellulose resin, aldehyde-ketone resin, modified rosin resin, and chloroacetic acid resin. The raw materials for preparing the leveling layer include water-based resin I, which includes one or more of water-based acrylic resin, water-based polycarbonate resin, and water-based polyurethane resin.

2. The imitation aluminized cigarette tipping paper according to claim 1, characterized in that, The raw materials for preparing the aluminum plating layer, by weight, include: Waterborne resin II 2.5 parts to 4 parts 0.5 to 3 parts aluminum powder Additive I 0.2 to 2.5 parts, and Solvent I: 2.5 to 10 parts; Solvent I includes one or more of water and ethanol; The additive I includes one or more of the following: leveling agent, adhesion promoter, dispersant, and defoamer; The waterborne resin II includes one or more of waterborne acrylic resin, waterborne polycarbonate resin, and waterborne polyurethane resin.

3. The imitation aluminized cigarette tipping paper according to claim 2, characterized in that, The aluminum powder has a D50 of 0.2μm to 0.6μm.

4. The imitation aluminized cigarette tipping paper according to claim 2, characterized in that, The raw materials for preparing the barrier layer, by weight, include: 2 to 5 parts of high-gloss resin Additive II 0.2 parts to 1.6 parts, and Solvent II 2 to 4 parts; Solvent II includes ethyl acetate; The additive II includes one or more of adhesion promoters and leveling agents.

5. The imitation aluminized cigarette tipping paper according to claim 2, characterized in that, The raw materials for preparing the leveling layer, by weight, include: Water-based resin I 2 to 5 parts Additive III 0.1 to 0.6 parts, and Solvent III: 8 to 15 parts; Solvent III includes one or more of water and ethanol; Additive III includes one or more of adhesion promoters and leveling agents.

6. The imitation aluminized cigarette tipping paper according to any one of claims 2 to 5, characterized in that, The leveling agents in additives I, II, and III each independently comprise one or more of polyether-modified polydimethylsiloxane, polyether-modified polysiloxane polymers, and acrylate homopolymers; and / or The adhesion promoters in Additive I, Additive II, and Additive III each independently include one or more of 3-aminopropyltriethoxysilane, 3-(2,3-epoxypropoxy)propyltrimethoxysilane, and titanate coupling agents.

7. The imitation aluminized cigarette tipping paper according to any one of claims 1 to 5, characterized in that, The imitation aluminum-plated cigarette tipping paper also includes a color layer, which is located on the side of the leveling layer away from the barrier layer.

8. A method for preparing the imitation aluminized cigarette tipping paper according to any one of claims 1 to 7, characterized in that, Includes the following steps: A barrier layer slurry is prepared, the barrier layer slurry comprising a high-gloss resin, the barrier layer slurry is coated on one side surface of a substrate, and dried to form the barrier layer; A slurry for preparing an aluminum plating layer is prepared, the slurry comprising aluminum powder. The slurry is coated on at least a portion of the surface of the barrier layer on the side away from the substrate, and then dried to form the aluminum plating layer. A leveling layer slurry is prepared, the leveling layer slurry comprising an aqueous resin I, the leveling layer slurry is coated on the surface of the simulated aluminum plating layer away from the substrate, and dried to form the leveling layer.

9. The method for preparing the imitation aluminized cigarette tipping paper according to claim 8, characterized in that, The barrier layer paste is applied in an amount of 1 g / m 2 1.6 g / m 2 ; and / or The coating amount of the aluminized layer slurry is 1.5 g / m 2 2.5 g / m 2 ; and / or The coating amount of the leveling layer slurry is 0.6 g / m². 2 ~1g / m 2 .

10. A cigarette comprising the imitation aluminized cigarette tipping paper as described in any one of claims 1 to 7 or the imitation aluminized cigarette tipping paper prepared by the preparation method described in any one of claims 8 to 9.

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