Cigarette filter stick forming paper containing bamboo ultrafine powder and preparation method of cigarette filter stick forming paper

Abstract

The invention relates to the technical field of cigarette manufacturing, and discloses cigarette filter stick forming paper containing bamboo ultrafine powder and a preparation method thereof, the cigarette filter stick forming paper comprises the following raw materials by mass: 40-60 parts of wood pulp cellulose, 0-35 parts of tobacco stem ultrafine powder, 10-30 parts of bamboo ultrafine powder, 20-30 parts of a modified calcium carbonate filler, 12-16 parts of essence and 1-6 parts of a cigarette paper additive; the modified calcium carbonate is obtained by compounding calcium carbonate with zeolite powder and then modifying with glyceryl triacetate. By means of the method, smoke can have the fresh and sweet fragrance of bamboos, the smoke is enriched, the smoke state and the fragrance style are improved, offensive odor and irritation of tobaccos are reduced, and the smoking quality of cigarettes is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cigarette manufacturing, in particular to cigarette filter rod forming paper containing superfine bamboo powder and a preparation method thereof. Background Art

[0002] Cigarette filter plug wrapping paper is a key auxiliary material in cigarette manufacturing, which has an important impact on the smoking quality of cigarettes and the sensory experience of consumers. Traditional filter plug wrapping paper is usually composed of wood pulp fibers and other fillers. This material can provide good mechanical strength and processing performance to ensure stability and efficiency in the production process. However, as consumers' requirements for cigarette quality increase and their attention to health issues increases, the potential of traditional materials in improving cigarette flavor, optimizing smoke quality and reducing irritation has gradually shown its limitations.

[0003] As a fast-growing and renewable natural resource, bamboo has many attractive properties that make it a potential alternative or supplement to traditional wood pulp fiber. Bamboo fiber has an excellent structure and is rich in bioactive components, such as phenolic compounds and polysaccharides, which can bring a unique sweet aroma to cigarettes and help neutralize the odor produced when tobacco is burned.

[0004] However, there are some challenges in using bamboo directly as cigarette filter plug wrapping paper. First, bamboo has a complex composition, which contains a variety of non-cellulose substances that may interfere with the papermaking process or react adversely with paper-based materials. Secondly, bamboo fibers are relatively coarse and hard, which makes them difficult to disperse evenly in the pulp, which may cause uneven problems in the final product, thus affecting the consistency and mechanical properties of the wrapping paper. In addition, the processing of bamboo fibers requires special technology to ensure its softness and compatibility so that it can be better integrated into the papermaking process without sacrificing product quality. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a cigarette filter rod forming paper containing ultrafine bamboo powder and a preparation method thereof, which can make the smoke have the sweet fragrance of bamboo, enrich the smoke, improve the smoke state and aroma style, reduce tobacco odor and irritation, and improve the smoking quality of cigarettes.

[0006] The present invention solves the above technical problems by the following technical means:

[0007] In a first aspect, the present invention discloses a cigarette filter rod forming paper containing superfine bamboo powder, comprising the following raw materials in parts by weight: 40-60 parts of wood pulp fiber, 0-35 parts of superfine tobacco stem powder, 10-30 parts of superfine bamboo powder, 20-30 parts of modified calcium carbonate filler, 12-16 parts of flavor and 1-6 parts of cigarette paper additive; the modified calcium carbonate is obtained by first compounding calcium carbonate with zeolite powder and then modifying it with triacetin.

[0008] By compounding calcium carbonate with zeolite powder and modifying it with triacetin, the adsorption, dispersibility and fiber bonding ability of the filler are significantly improved, and the mechanical strength and toughness of the paper base are improved at the same time; the bamboo ultrafine powder not only enhances the air permeability and structural stability of the filter rod forming paper, but also gives it natural aromatic characteristics; the characteristics of the tobacco stem ultrafine powder are used to further enhance the toughness and aroma release ability of the material; wood pulp fiber is used as the main supporting component of the paper base, and is evenly combined with fillers, additives, bamboo powder, etc., to ensure the processing performance and structural uniformity of the material. The cigarette filter rod forming paper of the present invention has good mechanical strength and processing performance, and the smoke has a unique sweet fragrance of bamboo, thereby enriching the layered sense of the smoke and optimizing the state and aroma style of the smoke.

[0009] Preferably, the cigarette paper additives include tamarind polysaccharide and glycerol.

[0010] Tamarind polysaccharide and glycerol have a certain synergistic effect. Tamarind polysaccharide enhances the strength and structural uniformity of the paper base, while the plasticizing effect of glycerol further optimizes the flexibility and processing performance. The two together improve the overall quality of cigarette paper.

[0011] Preferably, the steps of preparing the bamboo ultrafine powder include:

[0012] A1. The freshly picked bamboo is pretreated into small pieces, placed at 55-60 ° C, solid-liquid ratio 1: 6, mixed enzyme hydrolysis 11-19h, the enzymatic softening bamboo is squeezed and dehydrated, the solid material is threaded and inactivated at high temperature, the inactivated bamboo is dried and ultrafinely crushed to prepare 300 mesh -600 mesh ultrafine powder A;

[0013] A2. Add the superfine bamboo powder A to the chitosan solution, stir evenly, heat to 50-60°C, react for 1-2 hours, filter, wash and dry to obtain the superfine bamboo powder.

[0014] Preferably, the pretreatment of the freshly picked bamboo in step B1 is to remove the leaves, cut into small pieces, wash and dry them, and the mixed enzyme preparation includes cellulase, xylanase, pectinase, amylase and laccase.

[0015] The process combines enzymatic hydrolysis with physical treatment. First, fresh bamboo is softened by enzymatic hydrolysis, and part of cellulose, hemicellulose and lignin are decomposed under suitable temperature and solid-liquid ratio conditions, making the bamboo softer and easier to process. After extrusion dehydration, thread rolling and high-temperature inactivation treatment, the degree of fiberization is further increased and the material composition is stabilized. Subsequently, the bamboo is processed into 300-600 mesh ultrafine powder A by ultrafine grinding technology, which significantly improves its specific surface area and dispersibility. The coating effect of chitosan can improve the dispersibility and stability of ultrafine powder, and more evenly combine with other raw materials in cigarette filter paper, thereby improving the hygroscopicity, antibacterial property and bonding strength of bamboo powder with the substrate.

[0016] Preferably, the preparation steps of the modified calcium carbonate include:

[0017] B1. The calcium carbonate and zeolite powder were ball-milled, a dispersant was added, the mixture was mixed at a speed of 200-300 rpm for 1-2 hours, sintered at 500-800 ° C for 1-2 hours, cooled, and crushed through a 200-300 mesh sieve to obtain a composite calcium carbonate;

[0018] B2. Disperse the composite calcium carbonate in a triacetin solution, heat to 40-50° C. to react for 0.5-1.5 hours, and dry to obtain the modified calcium carbonate.

[0019] Preferably, the mixing ratio of calcium carbonate and zeolite powder in step B1 is 7:3.

[0020] Preferably, the dispersant in step B1 is a polyethylene glycol solution, and the addition ratio is 5% of the mixed weight of calcium carbonate and zeolite.

[0021] Calcium carbonate and zeolite powder are evenly mixed during the ball milling process, and the mechanical force increases the interface contact area between the two. Polyethylene glycol solution is added as a dispersant to further improve the dispersion and uniformity between particles and avoid agglomeration. During the sintering process, calcium carbonate and zeolite powder form a composite structure through solid-phase reaction, and the porous structure of zeolite powder is partially reorganized at high temperature to enhance adsorption capacity and specific surface area. The composite calcium carbonate is dispersed in a triacetin solution, and the triacetin molecules evenly cover the surface of the composite calcium carbonate, giving it higher dispersibility, affinity and adsorption.

[0022] In a second aspect, the present invention discloses a method for preparing cigarette filter plug wrapping paper containing ultrafine bamboo powder, the preparation method comprising:

[0023] S1. The modified calcium carbonate filler, cigarette paper additives, bamboo ultrafine powder, tobacco stem ultrafine powder and wood pulp fiber are prepared into a mixed slurry, stirred evenly, and the solid-liquid separation is performed to obtain an extract and a solid portion;

[0024] S2. The solid part is made into a paper base;

[0025] S3. The extract is concentrated and mixed with the flavor to form a coating liquid;

[0026] S4. coating the coating liquid on the paper base through a coating process, and drying to obtain the cigarette filter rod forming paper containing the ultrafine bamboo powder.

[0027] Preferably, the coating process parameters of step S4 are: coating amount 5-10g / m², coating speed 10-50m / min.

[0028] Beneficial effects of the present invention:

[0029] (1) The high adsorption and dispersibility of modified calcium carbonate improves the air permeability and structural stability of cigarette filter plug wrapping paper, while enhancing the loading capacity of flavor components. The modified composite calcium carbonate filler has high uniformity and is not prone to particle agglomeration, ensuring the processing performance and smoothness of the filter plug wrapping paper.

[0030] (2) Through this preparation and modification process, the bamboo ultrafine powder exhibits excellent mechanical properties and functional characteristics. Enzymatic hydrolysis and thread rolling treatment significantly improve the particle uniformity of bamboo powder, making it more evenly distributed in cigarette filter rod forming paper. Chitosan modification gives bamboo ultrafine powder excellent antibacterial properties, hygroscopicity and bonding strength with paper-based materials, while improving the fluidity and coating uniformity of the slurry and optimizing the processing performance.

[0031] (3) After enzymatic hydrolysis, ultrafine grinding and modification, bamboo ultrafine powder with a mesh size of 300-600 was prepared. The powder was mixed with modified calcium carbonate, tobacco stem ultrafine powder, wood pulp fiber and cigarette paper additives to form a slurry, and molded paper was prepared through papermaking and coating processes. Among them, the modified calcium carbonate was further improved by compounding with zeolite powder and modifying with triacetin. At the same time, the addition of cigarette paper additives enhanced the flexibility and stability of the paper base. Bamboo ultrafine powder has a natural porous structure and bioactive components. After enzymatic softening and ultrafine grinding, its specific surface area and dispersibility were significantly improved, and its adsorption capacity for harmful components in cigarette smoke was enhanced. In addition, the aromatic compounds in bamboo give the smoke a sweet bamboo fragrance, improving the smoke state and aroma style. The synergistic effect of modified calcium carbonate and bamboo ultrafine powder further improves the filtration efficiency of harmful components in smoke, reduces impurities and irritation in smoke, and improves the smoking quality of cigarettes. Cigarette paper additives optimize the mechanical properties of the paper base, making the forming paper more stable during preparation and use. DETAILED DESCRIPTION

[0032] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention:

[0033] Example 1

[0034] This embodiment is a preparation method of cigarette filter plug wrapping paper containing superfine bamboo powder.

[0035] Wherein, the preparation steps of modified calcium carbonate include:

[0036] A1. 42kg of calcium carbonate and 18kg of zeolite powder were ball-milled, polyethylene glycol solution was added, mixed at a speed of 200rpm for 2 hours, sintered at 500°C for 2 hours, cooled, and crushed through a 200-mesh sieve to obtain composite calcium carbonate;

[0037] A2. The composite calcium carbonate was dispersed in a triacetin solution, heated to 40°C for reaction for 1.5 hours, and dried to obtain 40 kg of modified calcium carbonate.

[0038] The preparation steps of bamboo ultrafine powder include:

[0039] B1. 65kg of freshly picked bamboo was cut into small pieces after removing the leaves, washed and dried, placed at 55 ° C, solid-liquid ratio 1: 6, mixed enzyme hydrolysis 11h, mixed enzyme preparation including cellulase, xylanase, pectinase, amylase, laccase, the bamboo softened by enzymatic extrusion dehydration, solid material was high temperature inactivated after thread rolling, the inactivated bamboo was ultrafinely ground after drying, and prepared into 40kg ultrafine powder A of 300 mesh;

[0040] B2. Add 40 kg of ultrafine powder A to 60 L of chitosan solution, stir evenly, heat to 50 ° C, react for 1 hour, filter, wash and dry to obtain 40 kg of bamboo ultrafine powder.

[0041] The preparation method of cigarette filter plug wrapping paper containing superfine bamboo powder is as follows:

[0042] S1. 20kg modified calcium carbonate filler, 1kg cigarette paper additive, 10kg bamboo ultrafine powder and 40kg wood pulp fiber were prepared into a mixed slurry, stirred evenly, and the solid-liquid separation was performed to separate the extract and the solid portion;

[0043] S2. The solid part is made into a paper base;

[0044] S3. The extract was concentrated and mixed with 12kg of flavor to form a coating liquid;

[0045] S4. The coating liquid is coated on the paper base through a coating process, and dried to obtain cigarette filter rod forming paper containing ultrafine bamboo powder. The coating process parameters are: coating amount 5g / m², coating speed 10m / min.

[0046] Example 2

[0047] This embodiment is a preparation method of cigarette filter plug wrapping paper containing superfine bamboo powder.

[0048] Wherein, the preparation steps of modified calcium carbonate include:

[0049] A1. 42kg of calcium carbonate and 18kg of zeolite powder were ball-milled, polyethylene glycol solution was added, mixed at a speed of 250rpm for 1.5 hours, sintered at 650°C for 1.5 hours, cooled, crushed through a 250-mesh sieve to obtain composite calcium carbonate;

[0050] A2. The composite calcium carbonate was dispersed in a triacetin solution, heated to 45°C for reaction for 1 hour, and dried to obtain 40 kg of modified calcium carbonate.

[0051] The preparation steps of the bamboo material ultrafine powder include:

[0052] B1. 65kg of freshly picked bamboo was removed from the leaves and cut into small pieces, washed and dried, and placed at 57.5°C, solid-liquid ratio 1:6, mixed enzyme hydrolysis for 15h, mixed enzyme preparation including cellulase, xylanase, pectinase, amylase, laccase, the bamboo softened by enzymatic hydrolysis was squeezed and dehydrated, the solid material was inactivated at high temperature after thread rolling, the inactivated bamboo was ultrafinely ground after drying, and 40kg of ultrafine powder A of 450 mesh was prepared;

[0053] B2. Add 40 kg of ultrafine powder A to 60 L of chitosan solution, stir evenly, heat to 50 ° C, react for 1 hour, filter, wash and dry to obtain 40 kg of bamboo ultrafine powder.

[0054] A method for preparing cigarette filter plug wrapping paper containing superfine bamboo powder is as follows:

[0055] S1. 25kg of modified calcium carbonate filler, 3.5kg of cigarette paper additives, 20kg of bamboo superfine powder, 17.5kg of tobacco stem superfine powder (passing a 300 mesh sieve) and 50kg of wood pulp fiber were prepared into a mixed slurry, stirred evenly, and the solid-liquid separation was performed to separate the extract and the solid portion;

[0056] S2. The solid part is made into a paper base;

[0057] S3. The extract was concentrated and mixed with 14kg of flavor to form a coating liquid;

[0058] S4. The coating liquid is coated on the paper base through a coating process, and dried to obtain cigarette filter rod forming paper containing ultrafine bamboo powder. The coating process parameters are: coating amount 7.5g / m², coating speed 30m / min.

[0059] Example 3

[0060] This embodiment is a preparation method of cigarette filter plug wrapping paper containing superfine bamboo powder.

[0061] Wherein, the preparation steps of modified calcium carbonate include:

[0062] A1. 42kg of calcium carbonate and 18kg of zeolite powder were ball-milled, polyethylene glycol solution was added, mixed at a speed of 300rpm for 1 hour, sintered at 800°C for 1 hour, cooled, and crushed through a 300-mesh sieve to obtain composite calcium carbonate;

[0063] A2. The composite calcium carbonate was dispersed in a triacetin solution, heated to 50°C for reaction for 0.5 hours, and dried to obtain 40 kg of modified calcium carbonate.

[0064] The preparation steps of the bamboo material ultrafine powder include:

[0065] B1. 65kg of freshly picked bamboo was cut into small pieces after removing the leaves, washed and dried, placed at 60 ° C, solid-liquid ratio 1: 6, mixed enzyme hydrolysis 19h, mixed enzyme preparation including cellulase, xylanase, pectinase, amylase, laccase, the bamboo softened by enzymatic extrusion dehydration, solid material was high temperature inactivated after thread rolling, the inactivated bamboo was ultrafinely ground after drying, and prepared into 40kg ultrafine powder A of 600 mesh;

[0066] B2. Add 40 kg of ultrafine powder A to 60 L of chitosan solution, stir evenly, heat to 50 ° C, react for 1 hour, filter, wash and dry to obtain 40 kg of bamboo ultrafine powder.

[0067] A method for preparing cigarette filter plug wrapping paper containing superfine bamboo powder is as follows:

[0068] S1. 30kg of modified calcium carbonate filler, 6kg of cigarette paper additives, 30kg of bamboo superfine powder, 35kg of tobacco stem superfine powder (passing a 600 mesh sieve) and 60kg of wood pulp fiber were prepared into a mixed slurry, stirred evenly, and the solid-liquid separation was performed to separate the extract and the solid portion;

[0069] S2. The solid part is made into a paper base;

[0070] S3. The extract was concentrated and mixed with 16kg of flavor to form a coating liquid;

[0071] S4. The coating liquid is coated on the paper base through a coating process, and dried to obtain cigarette filter rod forming paper containing ultrafine bamboo powder. The coating process parameters are: coating amount 10g / m², coating speed 50m / min.

[0072] Comparative Example 1

[0073] The difference from Example 2 is that the calcium carbonate is not modified.

[0074] Comparative Example 2

[0075] The difference from Example 2 is that no superfine bamboo powder is added.

[0076] Comparative Example 3

[0077] The difference from Example 2 is that only the freshly picked bamboo is ultrafinely crushed to make ultrafine powder, and no enzymatic hydrolysis and chitosan treatment are added.

[0078] The physical index test results of cigarette filter plug wrapping paper are shown in Table 1

[0079] Table 1

[0080]

[0081] The cigarette filter plug wrapping papers obtained in Examples 1-3 and Comparative Examples 1-3 were used for pilot sampling on the same cigarette brand, and 5 experts were organized to conduct sensory smoking evaluation. The evaluation results are shown in Table 2.

[0082] Table 2

[0083]

[0084] When heated and smoked, the heated cigarettes using the cigarette filter plug wrapping papers of Examples 1-3 have improvements in aroma, miscellaneous smell, coordination, irritation and aftertaste, and can significantly improve the smoking quality of the heated cigarettes.

[0085] The results of the cigarette hazard evaluation are shown in Table 3

[0086] Table 3

[0087]

[0088] As can be seen from the above table, the BAP, phenol, carbon monoxide and crotonaldehyde of Comparative Examples 1-3 are all higher than those of Example 2. The filter rod forming paper of the present invention effectively reduces harmful components such as BAP, phenol, carbon monoxide and crotonaldehyde through the effective adsorption of BAP, phenol, carbon monoxide and crotonaldehyde, while improving the irritation and flavor of the smoke, thereby significantly improving the safety and smoking quality of the cigarette.

[0089] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention. The techniques, shapes, and structural parts not described in detail in the present invention are all known technologies.

Claims

1. A cigarette filter plug wrapping paper containing superfine bamboo powder, characterized in that: The invention comprises the following raw materials in parts by weight: 40-60 parts of wood pulp fiber, 0-35 parts of tobacco stem ultrafine powder, 10-30 parts of bamboo ultrafine powder, 20-30 parts of modified calcium carbonate filler, 12-16 parts of flavor and 1-6 parts of cigarette paper additive; the modified calcium carbonate is obtained by first compounding calcium carbonate with zeolite powder and then modifying with triacetin.

2. The cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 1, characterized in that: The tobacco stem ultrafine powder is passed through a 300-600 mesh sieve, and the cigarette paper additive comprises tamarind polysaccharide and glycerol.

3. The cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 1, characterized in that: The preparation steps of the bamboo material ultrafine powder include: A1. The freshly picked bamboo is pretreated into small pieces, placed at 55-60 ° C, solid-liquid ratio 1: 6, mixed enzyme enzymatic hydrolysis 11-19h, the enzymatic softened bamboo is dehydrated, the solid material is threaded and then inactivated at high temperature, the inactivated bamboo is dried and ultrafinely crushed to prepare 300 mesh -600 mesh ultrafine powder A; A2. Add the ultrafine powder A to the chitosan solution, stir evenly, heat to 50-60°C, react for 1-2 hours, filter, wash and dry to obtain the ultrafine bamboo powder.

4. The cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 3, characterized in that: The pretreatment of the freshly picked bamboo in step A1 is to remove the leaves, cut into small pieces, wash and dry them, and the mixed enzyme preparation includes cellulase, xylanase, pectinase, amylase and laccase.

5. The cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 1, characterized in that: The preparation steps of the modified calcium carbonate include: B1. The calcium carbonate and zeolite powder were ball-milled, a dispersant was added, the mixture was mixed at a speed of 200-300 rpm for 1-2 hours, sintered at 500-800 ° C for 1-2 hours, cooled, and crushed through a 200-300 mesh sieve to obtain a composite calcium carbonate; B2. Disperse the composite calcium carbonate in a triacetin solution, heat to 40-50° C. to react for 0.5-1.5 hours, and dry to obtain the modified calcium carbonate.

6. The cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 5, characterized in that: The mixing mass ratio of calcium carbonate and zeolite powder in step B1 is 7:

3.

7. The cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 5, characterized in that: In the step B1, the dispersant is a polyethylene glycol solution, and the addition ratio is 4-6% of the total mass of the mixture of calcium carbonate and zeolite.

8. A method for preparing cigarette filter plug wrapping paper containing bamboo superfine powder according to any one of claims 1 to 7, characterized in that the steps include: S1. The modified calcium carbonate filler, cigarette paper additives, bamboo ultrafine powder, tobacco stem ultrafine powder and wood pulp fiber are prepared into a mixed slurry, stirred evenly, and the solid-liquid separation is performed to obtain an extract and a solid portion; S2. The solid part is made into a paper base; S3. The extract is concentrated and mixed with the flavor to form a coating liquid; S4. coating the coating liquid on the paper base through a coating process, and drying to obtain the cigarette filter rod forming paper containing the ultrafine bamboo powder.

9. The method for preparing cigarette filter plug wrapping paper containing superfine bamboo powder according to claim 8, characterized in that: The coating process parameters of step S4 are: coating amount 5-10g / m², coating speed 10-50m / min.

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