阅读说明：本技术 一种再造烟叶纸质过滤嘴棒及过滤嘴棒的制备方法 (Paper filter tip rod of reconstituted tobacco and preparation method of filter tip rod ) 是由 冯涛 殷沛沛 董高峰 刘晶 张文军 罗晓鸽 张梦源 于 2021-01-08 设计创作，主要内容包括：本发明公开了一种再造烟叶纸质过滤嘴棒及过滤嘴棒的制备方法,以烟草超细粉体为原材料,通过提取、固液分离、浓缩、调配工艺获得涂布液；通过造纸抄造成型工艺获得空白片基原纸；片基原纸经涂布工艺涂布后获得涂布样；涂布样经干燥、收卷、分切、复卷后制备得到适用于纸质滤嘴棒加工的原纸产品,原纸经压纹或切丝工艺,在经聚拢成型工艺卷制后制备得到纸质过滤嘴棒产品。该方法制备得到的纸质滤嘴棒产品不仅保留了传统纸质滤嘴棒的优势,而且带有天然烟草香气成分特点,增加卷烟的烟草元素,且可调可控,能赋予卷烟更多的功能性,因而从经济成本、生态环保方面都具备较高的优越性。(The invention discloses a paper filter tip rod of reconstituted tobacco and a preparation method of the filter tip rod, wherein tobacco superfine powder is used as a raw material, and a coating liquid is obtained by extraction, solid-liquid separation, concentration and blending processes; obtaining blank sheet base raw paper through a papermaking forming process; coating base paper of a sheet base by a coating process to obtain a coating sample; and drying, rolling, slitting and rewinding the coating sample to obtain a base paper product suitable for processing the paper filter tip, and rolling the base paper through a gathering forming process by an embossing or shredding process to obtain the paper filter tip product. The paper filter tip product prepared by the method not only retains the advantages of the traditional paper filter tip, but also has the characteristic of natural tobacco aroma components, increases the tobacco elements of the cigarette, is adjustable and controllable, and can endow the cigarette with more functionality, thereby having higher superiority in the aspects of economic cost and ecological environmental protection.)

1. The paper filter tip rod for the reconstituted tobacco is characterized by being prepared from the following raw materials in parts by weight:

60-85 parts of superfine tobacco powder;

15-40 parts of cellulose fiber;

0.2 to 1.5 portions of additive;

0 to 15 portions of filler

5 to 15 portions of humectant

0-3 parts of a fragrant raw material;

wherein: the superfine tobacco powder is characterized in that: the median particle diameter (D50) is 72.94 um-16.54 um, the content of particle diameter smaller than 20um is 20.95-55.43%, and the additive is an assistant containing tamarind polysaccharide gum, modified starch and water-soluble high molecular compound.

2. The paper reconstituted tobacco filter rod according to claim 1, wherein the modified starch comprises: one or more of oxidized starch, phosphate starch, hydroxyalkyl starch, acetate starch and cationic starch; the water-soluble polymer compound includes: one or more of chitosan, guar gum, xanthan gum, casein and polyvinyl alcohol.

3. The paper filter rod for reconstituted tobacco according to claim 1, wherein the superfine tobacco powder is one or more of pulverized tobacco raw materials, tobacco fragments, tobacco stems, tobacco powder, tobacco ash rods and the like.

4. The paper filter rod of reconstituted tobacco according to claim 1, wherein the cellulose fiber is one or more of fluff pulp, wood pulp, hemp pulp, cotton pulp, bamboo pulp and straw pulp.

5. The paper filter rod for reconstituted tobacco according to claim 1, wherein the filler is one or more of calcium carbonate, bentonite, diatomite and kaolin.

6. The paper filter rod of reconstituted tobacco according to claim 1, wherein the humectant is one or more of glycerol, propylene glycol, ethylene glycol, sorbitol, butylene glycol, honey, sodium carboxymethylcellulose (CMC), and tamarind polysaccharide gum (TSP).

7. The paper filter rod of reconstituted tobacco according to claim 1, wherein the fragrant raw material is one or more of alcohol extract, water extract, essential oil and absolute oil of tobacco and fragrant plants.

8. The preparation method of the paper filter tip rod of the reconstituted tobacco is characterized by comprising the following steps:

pulverizing tobacco raw materials by pulverizing equipment to obtain superfine powder, mixing with water, and separating and extracting to obtain extractive solution and residue;

mixing cellulose fibers with water, pulping according to a pulping process, preparing cellulose fiber slurry after pulping, mixing filter residues with the cellulose fiber slurry, adding an additive, fully and uniformly mixing to obtain mixed slurry, and preparing a film base based on the mixed slurry;

concentrating the extracting solution, adding a fragrant raw material and a humectant into the concentrated solution, fully and uniformly mixing to prepare a coating solution, preparing a coating sample from the coating solution and the film base by adopting a soaking-stagnation coating process, and drying, rolling, slitting and rewinding the coating sample to prepare base paper suitable for the paper filter tip rod;

and (3) carrying out embossing or shredding on the base paper, and rolling by a gathering forming process to obtain the paper filter tip rod product.

9. The method for preparing paper filter rods of reconstituted tobacco according to claim 8, wherein the ultra-fine tobacco powder is characterized in that: the median particle size (D50) is 72.94 um-16.54 um, the content of the particle size smaller than 20um is between 20.95 percent and 55.43 percent;

the weight ratio of the superfine tobacco powder to the water is 1: (4.0-8), wherein the extraction temperature is 50-80 ℃, and the extraction time is 15-70 min;

the slurry in the pulping process has a Shore beating degree of 20-80 SR degrees;

the drying temperature is 70-110 ℃;

the additive is an auxiliary agent containing tamarind polysaccharide gum, modified starch and a water-soluble high molecular compound.

10. The method for preparing paper filter rod of reconstituted tobacco according to claim 8,

the absolute dry basis weight of the tablet base is 20g/m²～80g/m²；

The oven dry basis weight of the coated sample is 30g/m²～160g/m²。

Technical Field

The invention relates to the technical field of reconstituted tobacco processes, in particular to a paper filter tip rod of reconstituted tobacco and a preparation method of the filter tip rod.

Background

The european union promulgated a plastic limit act (DIRECTIVE(EU)2019/904, June 5, 2019) 6/5 in 2019, and the cigarette filter is definitely identified as a disposable plastic product. According to the European union statistics, 86% of marine pollutants are plastic products, and the disposable plastic products account for 50% of the plastic products. In each category, cigarette filters count the second highest, and filter-tipped tobacco products or tobacco products are responsible for the filter producer: 1) the cost of public recognition is improved; 2) the cost of collection and cleaning; 3) collecting data and reporting costs of generation; 4) the cost of establishing and operating the associated facilities. The statute is expected to effect legislation from 1 month 2023. Currently, the tobacco group across China is looking for 'non-modified natural polymer' materials to replace cellulose acetate. Based on this statute, germany, the netherlands were equal to 2021 and banned some disposable plastic articles (disposable tableware, stirring bar, straw, etc.); the prohibition of other products is also implemented in different parts. National/regional legislation worldwide has mainly focused on restricting the production and use of disposable plastic bags, and some countries/regions restrict the use of other disposable plastic products, with the goal of reducing the use of disposable plastic products, and the european union directive is the only known region that specifically targets cigarette filter legislation.

The filter tip is used as a bridge between a smoker and main stream smoke and can effectively filter part of harmful ingredients in the smoke, in recent years, along with the comprehensive and deep development of the tobacco control framework convention performed by the Chinese government and the continuous enhancement of the social attention on smoking and health problems, the development of low-harm cigarette brands becomes the development trend of the tobacco industry at home and abroad, how to simultaneously improve the sensory quality of cigarettes and reduce the harm of the cigarettes, and the development of cigarettes with high fragrance and low harm becomes a key for enhancing the competitiveness of the cigarette brands and promoting the development of the brands.

At present, the basic materials of the filter tip mainly adopt acetate fibers and base paper, and the filter tip adopting the acetate fibers is difficult to further improve the filtering efficiency because the materials are single and the production process technology tends to be mature. The filter tip made of the base paper material has obvious advantages in tar reduction, cost and environmental protection, but the filter tip cigarette has the defects of heat collapse, dry smoke, high irritation, obvious paper flavor and the like in the cigarette smoking process, so that the filter tip cigarette is difficult to be generally applied to cigarettes.

Aiming at the defects of restricting the development and application of the paper filter tip, researchers at home and abroad pertinently develop research and obtain achievements. The british 2075328 patent provides a method for improving the water resistance of cellulose without affecting its elasticity and stiffness: soaking the base paper in water-resistant solution until the paper density is reduced to the minimum, taking out, and air drying at 60 deg.C for 1-2 d. The us 3494263 patent provides a method of enhancing the water resistance of the surface of paper: polyvinyl acetate emulsion with the dosage of 15 percent (relative to the absolute dry mass of the base paper) and the solid content of 5 percent is sprayed on the surface of the base paper and dried in the air. The invented filter tip is characterized by that in the binary system, one end near to tobacco shred is formed from filter tip made of puffed dry paper and its formed wrapping paper, and another end near to suction end is formed from acetate fibre filter tip, and finally the above-mentioned two ends are combined by means of filter forming paper. Wherein the bulking dry method is composed of pure wood pulp or 50% -90% wood pulp and 5% -50% hot melt fiber.

Disclosure of Invention

In order to solve the defects of the prior art, the inventor provides a new process through research, development and design, single or diversified tobacco raw materials are subjected to superfine grinding, materials used in the extraction and pulping processes are homogenized to the maximum extent, and the superfine particle powder is fully mixed with cellulose fibers according to a certain proportion and then subjected to sheet-based papermaking, so that the uniformity of the sheet base is high; the fluctuation of physical indexes such as quantification, thickness, bulk, air permeability and the like is small; the paper has high physical indexes such as tensile strength, tensile rate and the like, the coated paper has fine surface, good coating consistency and small fluctuation of physical and chemical indexes, and the physical indexes such as the tensile strength, the tensile rate and the like meet the strength requirement of the paper in high-speed running. And drying, rolling, slitting and rewinding the coating sample to obtain a base paper product suitable for processing the paper filter tip, and rolling the base paper through a gathering forming process by an embossing or shredding process to obtain the paper filter tip product. The paper filter rod prepared according to the process avoids the problems that the traditional paper filter rod is easy to damp and soften, has poor elasticity and is easy to generate heat collapse in the smoking process due to high hygroscopicity, so that the application process of the traditional paper filter rod can be compressed and deformed, the smoking resistance is increased, and smokers can difficultly smoke; the cigarette has the characteristics of no paper taste in the smoking process, natural tobacco aroma components, increased tobacco elements of the cigarette, adjustability and controllability, and can endow the cigarette with more functionality; more outstanding is that the biodegradability is good, so compared with acetate fiber, the cellulose acetate fiber is more friendly to the natural environment; therefore, the method has higher superiority in the aspects of economic cost and ecological environmental protection.

Specifically, the invention is realized by the following steps: a paper filter tip rod for reconstituted tobacco is prepared from the following raw materials in parts by weight: 60-85 parts of superfine tobacco powder; 15-40 parts of cellulose fiber; 0.2 to 1.5 portions of additive; 0-15 parts of filler; 5-15 parts of a humectant; 0-3 parts of a fragrant raw material; wherein: the superfine tobacco powder is characterized in that: the median particle size (D50) is 72.94 um-16.54 um, the particle size content of less than 20um is 20.95% -55.43% of the superfine powder; the additive is an auxiliary agent containing tamarind polysaccharide gum, modified starch and a water-soluble high molecular compound.

Further, the modified starch includes: one or more of oxidized starch, phosphate starch, hydroxyalkyl starch, acetate starch and cationic starch; the water-soluble polymer compound includes: one or more of guar gum, xanthan gum, casein and polyvinyl alcohol.

Further, the superfine tobacco powder is one or a combination of a plurality of crushed tobacco raw materials, tobacco fragments, tobacco stems, tobacco powder, tobacco ash rods and the like.

Further, the cellulose fiber is one or more of wood pulp (softwood pulp, hardwood pulp), hemp pulp (flax pulp, hemp pulp), cotton pulp, bamboo pulp, straw pulp and fluff pulp.

Further, the filler is one or a combination of more of calcium carbonate, bentonite, diatomite and kaolin.

Further, the humectant is one or more of glycerol, propylene glycol, ethylene glycol, sorbitol, butanediol, honey, sodium carboxymethylcellulose (CMC), and tamarind polysaccharide gum (TSP).

Further, the fragrant raw material is one or a combination of more of alcohol extract, water extract, essential oil and absolute oil of tobacco and fragrant plants.

In another aspect of the invention, a preparation method of a paper filter tip rod of reconstituted tobacco is provided, which comprises the following steps: pulverizing tobacco raw materials by pulverizing equipment to obtain superfine powder, mixing with water, and separating and extracting to obtain extractive solution and residue; mixing cellulose fibers with water, pulping according to a pulping process, preparing cellulose fiber slurry after pulping, mixing filter residues with the cellulose fiber slurry, adding an additive, fully and uniformly mixing to obtain mixed slurry, and preparing a film base based on the mixed slurry; concentrating the extracting solution, adding a fragrant raw material and a humectant into the concentrated solution, uniformly mixing to obtain a coating solution, preparing a coating sample from the coating solution and the film base by adopting a soaking stagnation coating process, drying, rolling, slitting and rewinding the coating sample to obtain base paper suitable for the paper filter rod, and rolling the base paper by an embossing or shredding process through a gathering forming process to obtain the paper filter rod product.

Further, the particle size of the ultra-fine tobacco powder is characterized by: the median particle size (D50) is 72.94 um-16.54 um, the content of the particle size smaller than 20um is between 20.95 percent and 55.43 percent; the weight ratio of the superfine tobacco powder to the water is 1: (4.0-8), wherein the extraction temperature is 50-80 ℃, and the extraction time is 15-70 min; the slurry in the pulping process has a Shore beating degree of 20-80 SR.

Further, the absolute dry basis weight of the tablet base is 20g/m²～80g/m²(ii) a The oven dry basis weight of the coated sample is 30g/m²～160g/m²。

The working principle of the invention is introduced: the tobacco raw material is crushed by crushing equipment to prepare the tobacco powder with the characteristics that: the preparation method comprises the steps of preparing superfine powder with median particle size (D50) of 72.94-16.54 um and particle size content of less than 20um of 20.95-55.43%, adding water, separating to obtain an extracting solution and filter residue, concentrating the extracting solution, adding perfume materials and humectant into the concentrated solution, uniformly mixing to obtain a coating solution, mixing cellulose fibers with water, pulping according to a pulping process, preparing cellulose fiber slurry after pulping, mixing the filter residue with the cellulose fiber slurry, adding an additive, and mixing to obtain mixed slurry. Because the raw material is ultra-fine powder, if the average diameter of the plant cells is 20um (the grain diameter of most plant cells is between 10um and 30 um), when the grain diameter content of 20um is between 20.95 percent and 55.43 percent, the tobacco cells accounting for 20.95 percent to 55.43 percent are broken, the degree of cell wall breaking is different, and the prepared film base has different indexes such as quantification, thickness, bulk, air permeability, tensile strength, tensile rate, moisture absorption rate and the like, which are important factors influencing the coating rate, smoothness, uniformity, physicochemical indexes and the like of finished products. Tamarind gum, on the other hand, is a water-soluble xyloglucan, a water-soluble polymeric polysaccharide with glucose as the backbone and galactose and xylose as side chains. Xyloglucan is a polysaccharide present in the cell walls of higher plants, in particular the wall (main wall) fraction in which many plant cells grow. In addition, xyloglucan has a network-forming crosslinked microfibril, and therefore, the polysaccharide molecule has a strong hydrophilicity and is capable of binding many water molecules (i.e., hydration) and generating a certain viscosity, and the viscosity of the polysaccharide solution is not so high, but it is characterized by having a thickening effect in the presence of a sugar and inducing gelation. The auxiliary agent is one or a mixture of more of tamarind polysaccharide gum, modified starch, water-soluble high molecular compounds and the like, and in the process of preparing the mixed slurry, the molecular main chain structure of the auxiliary agent is similar to that of cellulose molecules, so that the auxiliary agent is easy to adsorb on fibers to generate retention, drainage and enhancement effects and promote molecular extension; in addition, the tamarind polysaccharide gum is mixed with the modified starch and the water-soluble high molecular compound under the accurate dosage and then is fully and uniformly mixed with the mixed slurry, the xyloglucan has the characteristics that reticular cross-linked microfibers can be fully and uniformly mixed with the starch water-soluble substances with charges due to branches, and the xyloglucan is easy to mutually complex with fibers with negative charges and ultramicro tobacco powder, so that the whole auxiliary agent has the characteristic of uniform charge density, and the retention rate of the slurry is improved; the improvement of physical indexes such as tensile strength, tensile rate and the like is realized, and the coating process can be suitable for a high-speed coating process, so that the prepared product not only has low suction resistance, but also can keep higher deformation resistance; finally, the addition agent containing the tamarind polysaccharide gum effectively promotes the extension of molecules in the mixed slurry, so that the molecular weight of the whole mixed slurry is moderate, excessive flocculation is avoided, and the uniformity of a film base is improved.

Based on the factors, single or diversified tobacco raw materials are subjected to superfine grinding to ensure that materials used in the leaching and pulping processes are homogenized maximally, and the superfine particle powder is fully mixed with cellulose fibers according to a certain proportion and then subjected to sheet-based paper making, so that the uniformity of the sheet base is high; the fluctuation of physical indexes such as quantification, thickness, bulk, air permeability and the like is small; the paper has high physical indexes such as tensile strength, tensile rate and the like, the coated paper has fine surface, good coating consistency and small fluctuation of physical and chemical indexes, and the physical indexes such as the tensile strength, the tensile rate and the like meet the strength requirement of the paper in high-speed running. And drying, rolling, slitting and rewinding the coating sample to obtain a base paper product suitable for processing the paper filter tip, and rolling the base paper through a gathering forming process by an embossing or shredding process to obtain the paper filter tip product. The paper filter rod prepared according to the process avoids the problems that the traditional paper filter rod is easy to damp and soften, has poor elasticity and is easy to generate heat collapse in the smoking process due to high hygroscopicity, so that the application process of the traditional paper filter rod can be compressed and deformed, the smoking resistance is increased, and smokers can difficultly smoke; the cigarette has the characteristics of no paper taste in the smoking process, natural tobacco aroma components, increased tobacco elements of the cigarette, adjustability and controllability, and can endow the cigarette with more functionality; more outstanding is that the biodegradability is good, so compared with acetate fiber, the cellulose acetate fiber is more friendly to the natural environment; therefore, the method has higher superiority in the aspects of economic cost and ecological environmental protection.

Compared with the prior art, the invention has the following beneficial effects:

(1) the preparation method comprises the steps of preparing a powder paste by micronizing raw materials, extracting and separating, preparing a coating solution after an extracting solution is prepared into a concentrated solution, mixing powder slag and slurry to prepare a mixed slurry, performing micronization treatment to break the walls of raw material cells in different proportions and to obtain different wall breaking degrees, wherein the prepared film base has different indexes such as quantification, thickness, bulk, air permeability, tensile strength, tensile rate, moisture absorption rate and the like, and when the particle size content of 20 mu m is between 20.95 and 55.43 percent and the median diameter (D50) is between 72.94 mu m and 16.54 mu m, the prepared film base has high uniformity; the fluctuation of physical indexes such as quantification, thickness, bulk, air permeability and the like is small; the paper has high physical indexes such as tensile strength, tensile rate and the like, the coated paper has fine surface, good coating consistency and small fluctuation of physical and chemical indexes, and the physical indexes such as the tensile strength, the tensile rate and the like meet the strength requirement of the paper in high-speed running.

(2) And (3) carrying out embossing or shredding on the base paper, and rolling by a gathering forming process to obtain the paper filter tip rod product. The paper filter rod prepared according to the process avoids the problems that the traditional paper filter rod is easy to damp and soften, has poor elasticity and is easy to generate heat collapse in the smoking process due to high hygroscopicity, so that the application process of the traditional paper filter rod can be compressed and deformed, the smoking resistance is increased, and smokers can difficultly smoke; the cigarette has the characteristics of no paper taste in the smoking process, natural tobacco aroma components, increased tobacco elements of the cigarette, adjustability and controllability, and can endow the cigarette with more functionality; more outstanding is that the biodegradability is good, so compared with acetate fiber, the cellulose acetate fiber is more friendly to the natural environment; therefore, the method has higher superiority in the aspects of economic cost and ecological environmental protection.

(3) The acetate fiber filter stick is definitely defined as a disposable plastic product in the plastic limit law issued by the European Union, the acetate fiber filter stick is difficult to naturally degrade and can harm the natural environment, and the paper filter stick of the reconstituted tobacco is high in natural degradation rate and easy to naturally degrade. The cellulose acetate filter tip has limited resources, strict requirements on raw materials, complex process, large investment and long process, and more prominently, hydroxyl on a cellulose molecular chain is acetylated in the preparation process, so that the cellulose acetate filter tip has stable property and is difficult to degrade, thereby causing harm to the natural environment. The paper filter tip of the reconstituted tobacco has low cost, and particularly has good biodegradability, so compared with cellulose acetate, the paper filter tip is more friendly to the natural environment. The paper filter tip of the reconstituted tobacco firstly achieves the same or similar effect as the traditional cellulose acetate filter tip in the aspect of intercepting smoke; the paper filter tip of the reconstituted tobacco can replace the traditional cellulose acetate filter tip.

Drawings

FIG. 1 is a paper filter tip rod of reconstituted tobacco and a preparation method of the filter tip rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example 1: a paper filter tip rod for reconstituted tobacco is prepared from the following raw materials in parts by weight: 60-85 parts of superfine tobacco powder; 15-40 parts of cellulose fiber; 0.2 to 1.5 portions of additive; 0 to 15 parts of filler, 5 to 15 parts of humectant, and 0 to 3 parts of fragrant raw material; wherein: the superfine tobacco powder is characterized in that: the median particle size (D50) is 72.94 um-16.54 um, the content of the particle size smaller than 20um is between 20.95 percent and 55.43 percent; the additive is an auxiliary agent containing tamarind polysaccharide gum, modified starch and a water-soluble high molecular compound.

The modified starch comprises: one or more of oxidized starch, phosphate starch, hydroxyalkyl starch, acetate starch and cationic starch; the water-soluble polymer compound includes: one or more of guar gum, xanthan gum, casein and polyvinyl alcohol.

The superfine tobacco powder is one or more of crushed tobacco leaf material, tobacco leaf fragment, tobacco stem, tobacco powder, tobacco ash rod, etc.

The cellulose fiber is one or more of wood pulp (softwood pulp, hardwood pulp), hemp pulp (flax pulp, hemp pulp), cotton pulp, bamboo pulp, grass pulp and fluff pulp.

The filler is one or more of calcium carbonate, bentonite, diatomite and kaolin.

The humectant is one or more of glycerol, propylene glycol, ethylene glycol, sorbitol, butanediol, Mel, sodium carboxymethylcellulose (CMC), and tamarind polysaccharide gum (TSP).

The fragrant raw material is one or more of alcohol extract, water extract, essential oil and absolute oil of tobacco and fragrant plants.

Embodiment 2, a method for preparing paper filter tips of reconstituted tobacco, comprising the following steps: pulverizing tobacco raw materials by pulverizing equipment to obtain superfine powder, mixing with water, and separating and extracting to obtain extractive solution and residue; mixing cellulose fibers with water, pulping according to a pulping process, preparing cellulose fiber slurry after pulping, mixing filter residues with the cellulose fiber slurry, adding an additive, fully and uniformly mixing to obtain mixed slurry, and preparing a film base based on the mixed slurry; concentrating the extracting solution, adding the fragrant raw materials and the humectant into the concentrated solution, fully and uniformly mixing to prepare a coating solution, preparing a coating sample from the coating solution and the film base by adopting a dipping and stagnation coating process, and drying, rolling, slitting and rewinding the coating sample to prepare the paper filter tip rod product of the reconstituted tobacco.

The superfine tobacco powder is characterized in that: the median particle size (D50) is 72.94 um-16.54 um, the content of the particle size smaller than 20um is between 20.95 percent and 55.43 percent; the weight ratio of the superfine tobacco powder to the water is 1: (4.0-8), wherein the extraction temperature is 50-80 ℃, and the extraction time is 15-70 min; the slurry in the pulping process has a Shore beating degree of 20-80 SR degrees; the drying temperature is 70-110 ℃.

The absolute dry basis weight of the tablet base was 20g/m²～80g/m²(ii) a The oven dry basis weight of the coated sample is 30g/m²～160g/m²。

Example 3: preparing cigarette filter tip

(1) Crushing tobacco stalk raw materials by adopting crushing equipment to prepare superfine tobacco powder, wherein the median diameter (D50) of the superfine tobacco powder is 37.63um, and the particle size content is 34.39% which is smaller than 20 um;

(2) placing 80 parts by weight (oven-dried mass) of the superfine tobacco powder in an extraction tank, adding 4 times of water, extracting at 70 ℃ for 30 minutes, and filtering to obtain an extracting solution and filter residue after extraction is finished;

(3) concentrating the extracting solution by adopting a reduced pressure distillation concentration process to obtain a concentrated solution, adding 5 parts by weight of humectant into the concentrated solution, fully stirring and uniformly mixing to prepare a coating liquid for later use;

(4) 30 parts of fluff pulp is taken and is pulped according to the pulping process of the paper-making reconstituted tobacco, and the Shoubule beating degree of the pulp is 45 degrees SR;

(5) after pulping, mixing the tobacco powder residue and cellulose fiber slurry together, adding 0.4 part by weight of additive into the mixed slurry, fully stirring and uniformly mixing, and then adopting a paper-making method reconstituted tobacco sheet base paper-making forming process to prepare the sheet base, wherein the ration of the sheet base is 40g/m²；

(6) Coating the coating liquid on the base sheet according to the coating process of the paper-making reconstituted tobacco, and controlling the absolute dry ration of the coated reconstituted tobacco to be 60g/m²；

(7) And drying, rolling, slitting and rewinding the coating sample to prepare the paper filter tip rod product of the reconstituted tobacco.

The effect of the amount of tamarind polysaccharide gum used on the slurry retention and the physical properties of the chip base is as follows

Amount used (%)	Thickness (mm)	Tensile Strength (N/m)	Elongation (%)	Pulp retention improvement (%)
					0％	0.047	986	2.57	—
0.20％	0.051	1022	2.76	7.93％
					0.40％	0.052	1096	2.85	13.61％
0.50％	0.052	1059	2.67	11.43％

The interception of paper filter tip rod of reconstituted tobacco on smoke indexes is compared with that of cellulose acetate filter tip rod as follows

Example 4: preparing cigarette filter tip

(1) Embossing raw paper of the paper filter tip, and gathering and forming to obtain a raw paper filter tip;

(2) further, the physical parameters of the base paper are as follows:

sample name	Quantitative (g/m)2)	Thickness (mm)	Tensile Strength (N/m)	Elongation (%)	Breadth (mm)
						Sample No. 1	120	0.200	1172	2.11	128mm

(3) Furthermore, the embossing depth is 0.01-0.08 mm, and the pressure of an embossing roller is 5-25 MPa;

(4) further, the physical indexes of the original paper filter rod formed by gathering after embossing are as follows:

(5) further, the physical parameters of the cigarettes after the paper filter tip original rod and the cigarette section are compounded are as follows:

(6) further, the cigarette smoke parameters after the paper filter tip original rod and the cigarette section are compounded are as follows:

(7) furthermore, the cigarette obtained by compositing the original paper filter tip rod obtained by embossing the raw paper filter tip rod with the cigarette is basically consistent with the interception and filtration effect of the acetate fiber rod on the aspect of smoke indexes.

Example 5: preparing cigarette filter tip

(1) Shredding raw paper of the paper filter tip, and gathering and forming to obtain a raw paper filter tip;

(2) further, the physical parameters of the base paper are as follows:

sample name	Quantitative (g/m)2)	Thickness (mm)	Tensile Strength (N/m)	Elongation (%)	Breadth (mm)
						Sample No. 1	120	0.200	1172	2.11	160mm

(3) Further, the shredding width is 0.8-2.0 mm;

(4) further, the physical indexes of the original paper filter tip rod after being shredded and formed by gathering are as follows:

index name	Weight (g)	Hardness (%)	Circumference (mm)	Length (mm)	Suction resistance (Pa)
						Shredding paper filter tip	2637.1	85.9	24.04	120.1	2642

(5) Further, the physical parameters of the cigarettes after the paper filter tip original rod and the cigarette section are compounded are as follows:

(6) further, the cigarette smoke parameters after the paper filter tip original rod and the cigarette section are compounded are as follows:

(7) furthermore, the cigarette obtained by compounding the original paper filter tip rod obtained by shredding the raw paper filter tip rod and the cigarette is basically consistent with the interception and filtration effect of the acetate fiber rod in the aspect of smoke indexes.

Example 6: preparing multi-element composite cigarette filter tip

(1) Shredding raw paper of the paper filter tip, and gathering and forming to obtain a raw paper filter tip;

(2) further, the physical parameters of the base paper are as follows:

sample name	Quantitative (g/m)2)	Thickness (mm)	Tensile Strength (N/m)	Elongation (%)	Breadth (mm)
						Sample No. 1	120	0.200	1172	2.11	150mm

(3) Further, the shredding width is 0.8-2.0 mm;

(4) further, the physical indexes of the original paper filter tip rod after being shredded and formed by gathering are as follows:

index name	Weight (g)	Hardness (%)	Circumference (mm)	Length (mm)	Suction resistance (Pa)
						Shredding paper filter tip	2348.5	86.0	23.52	120.09	2813

(5) Further, after the paper filter tip original rod and the acetate fiber rod are subjected to 1:1 binary compounding, the physical parameters of the binary composite rod are as follows:

index name	Weight (g)	Hardness (%)	Circumference (mm)	Length (mm)	Suction resistance (Pa)
						Binary composite filter tip rod	1586.5	84.5	23.68	120.09	2656.3

(6) Further, the physical parameters of the cigarettes after the binary composite filter rod raw rods and the cigarette sections are compounded are as follows:

(7) further, the cigarette smoke parameters after the binary composite filter rod raw rod and the cigarette section are compounded are as follows:

it is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.