CN114086432B - Composite paper and preparation method thereof, filter stick forming paper, filter tip, tobacco product and application - Google Patents

Abstract

The invention belongs to the field of tobacco products, and particularly relates to composite paper containing coffee grounds, which comprises 7-15 parts by weight of coffee grounds, 16-24 parts by weight of non-tobacco fiber pulp, 0.1-1 part by weight of retention aid, 0.1-1 part by weight of sizing agent and 0.05-1 part by weight of filling agent. The invention also relates to a method for producing a composite paper containing coffee grounds, a filter rod forming paper, a cigarette filter, a tobacco product and the use thereof. The composite paper has good performance, and after the filter tip manufactured by the composite paper is used for cigarettes, the tar content of mainstream smoke is reduced, the nicotine and caffeine content is improved, the gas-phase free radical and solid-phase free radical content is reduced, the sensory quality of cigarette smoking is improved, and the satisfaction and pleasure are improved.

Description

Composite paper and preparation method, filter rod forming paper, filter tip, tobacco product and application

technical field

The invention belongs to the field of tobacco products, in particular to a composite paper containing coffee grounds, a preparation method of the composite paper containing coffee grounds, a filter rod forming paper, a cigarette filter, a tobacco product and their application.

Background technique

With the improvement of people's living standards and the development of global tobacco control campaigns, consumers are paying more and more attention to smoking health issues. At present, it is mainly to compensate for the flavor by adding flavors to shredded tobacco, shredded stems or thin slices of cigarettes. Flavors will produce some uncontrollable substances after burning, some of which may have potential impacts on human health, which makes tobacco shredded, shredded stems or thin slices Adding fragrance has unavoidable drawbacks. It is a more effective and direct way to make full use of natural functional materials that help to improve the quality of cigarette smoking, and to add cigarette filter to compensate for the aroma of cigarette smoking, which avoids the harm to the human body caused by burning. potential health effects. Therefore, need badly a kind of novel cigarette filter tip that adds functional material at present.

Coffee is one of the most popular beverages in the world. The coffee grounds produced after drinking coffee still contain a certain amount of caffeine and other substances, but most of the coffee grounds are discarded directly and have not been effectively utilized.

Contents of the invention

One of the objectives of the present invention is to provide a composite paper containing coffee grounds, which has good paper performance. After the filter tip made of the composite paper is used in cigarettes, the tar content, nicotine and coffee content in mainstream smoke of cigarettes are reduced. Due to the increase of the content, the decrease of the content of gas phase free radicals and solid phase free radicals, the pH value of the smoke is maintained within an appropriate range, the sensory quality of cigarette smoking is improved, and the sense of satisfaction and pleasure is enhanced; another purpose of the present invention is to provide a A method for preparing composite paper containing coffee grounds; another object of the present invention is to provide a filter plug forming paper, a cigarette filter, a tobacco product and its application.

In order to achieve the above object, the first aspect of the present invention relates to a composite paper containing coffee grounds, which comprises in parts by weight:

In some embodiments of the first aspect of the present invention, the particle size of the coffee grounds is not greater than 300 mesh, preferably not greater than 400 mesh, not greater than 500 mesh or not greater than 600 mesh; wherein, the particle size of the coffee grounds is not greater than 300 mesh Refers to the collected coffee grounds passing through a 300-mesh sieve; coffee grounds with a particle size of not more than 400 mesh refers to the collected coffee grounds passing through a 400-mesh sieve; coffee grounds with a particle size of not more than 500 mesh refers to the collected coffee grounds passing through a 500-mesh Coffee grounds; coffee grounds with a particle size not greater than 600 mesh refers to coffee grounds collected through a 600-mesh sieve.

In some embodiments of the first aspect of the present invention, the coffee grounds are selected from Arabica coffee grounds and Robusta coffee grounds.

In some embodiments of the first aspect of the present invention, the coffee grounds are selected from washed Arabica coffee bean grounds, honey-treated Arabica coffee bean grounds, natural-treated Arabica coffee bean grounds, washed Robusta coffee bean grounds, and honey-treated coffee grounds. Robusta coffee bean grounds and natural processed Robusta coffee bean grounds.

In some embodiments of the first aspect of the present invention, the coffee grounds are selected from water-washed Arabica coffee grounds, honey-processed Arabica coffee grounds, and natural-processed Robusta coffee grounds.

In some embodiments of the first aspect of the present invention, the coffee grounds are prepared through the following steps:

Crush the coffee beans, sieve, and collect the sieved coffee bean powder;

Soak the coffee bean powder in water at 40°C to 100°C (for example, 80°C), and separate the solid and liquid to obtain coffee grounds;

Preferably, the coffee grounds are dried.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, the coffee beans are selected from Arabica coffee beans and Robusta coffee beans.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, the coffee beans are selected from water-washed Arabica coffee beans, honey-processed Arabica coffee beans, natural-processed Arabica coffee beans, and water-washed Robusta coffee beans. Coffee Beans, Honey Processed Robusta Coffee Beans and Natural Processed Robusta Coffee Beans.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, the coffee beans are selected from water-washed Arabica coffee beans, honey-processed Arabica coffee beans, and natural-processed Robusta coffee beans.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, pass through a 300-mesh-800-mesh sieve, for example, pass through a 400-mesh, 500-mesh or 600-mesh sieve.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, the soaking time is 5 to 40 hours, such as 10, 12, 15, 18, 20, 23, 24, 26, 28, 30, 32, 34 hours , 36, 38 hours.

In some embodiments of the first aspect of the present invention, in the step of preparing the coffee grounds, soak once.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, when soaking, the volume of water is 1 to 5 times, such as 2 times or 4 times, the volume of coffee bean powder.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, solid-liquid separation is performed by filtration.

In some embodiments of the first aspect of the present invention, in the step of preparing coffee grounds, the drying temperature is 40°C-100°C, such as 60°C, 80°C.

In some embodiments of the first aspect of the present invention, the non-tobacco fiber pulp is selected from softwood wood pulp and synthetic fiber wood pulp.

In some embodiments of the first aspect of the present invention, the weight ratio of softwood pulp to synthetic fiber pulp is 1:1.

In some embodiments of the first aspect of the present invention, the retention aid is selected from polyacrylamide (eg, cationic polyacrylamide) and polyoxyethylene.

In some embodiments of the first aspect of the present invention, the polyacrylamide has a weight average molecular weight of 1 million to 8 million, such as 2 million to 4 million or 5 million to 7 million.

In some embodiments of the first aspect of the present invention, the cationic polyacrylamide has a weight average molecular weight of 5 million to 7 million.

In some embodiments of the first aspect of the present invention, the sizing agent is selected from the group consisting of alkyl ketene dimer, styrene-maleic anhydride copolymer and carboxymethyl cellulose.

In some embodiments of the first aspect of the present invention, the filler is selected from glass powder, graphite and diatomaceous earth.

In some embodiments of the first aspect of the present invention, the water weight content in the coffee grounds is 2%W/W-10%W/W, preferably 5%W/W-8%W/W, such as 5.5% W/W, 6%W/W, 6.5%W/W.

In some embodiments of the first aspect of the present invention, the tensile strength of the composite paper containing coffee grounds is not less than 450N/m, preferably not less than 500N/m, such as 520N/m, 550N/m, 590N/m m, 600N/m, 620N/m, 650N/m, 700N/m.

A second aspect of the present invention relates to a method for preparing composite paper containing coffee grounds, comprising the steps of:

mixing coffee grounds and non-tobacco fiber pulp to obtain a first mixture;

mixing the first mixture with a retention aid, a sizing agent, and a filler to obtain a second mixture;

The second mixture is sequentially subjected to a slurry treatment and a beating treatment to obtain a mixed slurry;

The mixed slurry is processed and dried to obtain a composite paper containing coffee grounds;

Wherein, the coffee grounds, non-tobacco fiber pulp, retention aid, sizing agent and filler are as described in the first aspect of the present invention.

In some embodiments of the second aspect of the present invention, the weight parts of the coffee grounds, non-tobacco fiber pulp, retention aid, sizing agent and filler are as described in the first aspect of the present invention.

In some embodiments of the second aspect of the present invention, the specific components or compositions of the coffee grounds, non-tobacco fiber pulp, retention aid, sizing agent and filler are as described in the first aspect of the present invention.

In some implementations of the second aspect of the present invention, the performance parameters (such as particle size, molecular weight, moisture content, etc.) of the coffee grounds, non-tobacco fiber pulp, retention aid, sizing agent and filler are as described in the first described in the aspect.

In some embodiments of the second aspect of the present invention, the temperature of the slurry treatment is 7°C to 30°C, for example, 10°C, 15°C, 20°C, 25°C, 28°C.

In some embodiments of the second aspect of the present invention, before the bulk slurry treatment, water is added to the second mixture at a volume ratio of 1:(1-3) (for example, 1:1).

In some embodiments of the second aspect of the present invention, the method for preparing the coffee grounds is as described in the first aspect of the present invention.

In some embodiments of the second aspect of the present invention, the beating degree of the mixed pulp is 24-37°SR, such as 25°SR, 27°SR, 31°SR, 35°SR.

In some embodiments of the second aspect of the present invention, the solid content of the mixed slurry is 2%W/W～13%W/W, such as 3%W/W, 4%W/W, 5%W/W , 6% W/W, 7% W/W, 8% W/W, 9% W/W, 10% W/W, 11% W/W, 12% W/W.

In some embodiments of the second aspect of the present invention, the conditions of the papermaking process are: the drying cylinder speed is 1200-1700m/min (such as 1350m/min, 1420m/min, 1570m/min), and the drying cylinder pressure is 2.4-4.6 bar (eg 2.9bar, 3.1bar, 4.3bar).

In some embodiments of the second aspect of the present invention, the method further includes: cutting, calendering, and packaging the composite paper containing coffee grounds.

The composite paper containing coffee grounds in the first aspect of the present invention is made by the method described in the second aspect of the present invention.

The third aspect of the present invention relates to a filter plug forming paper, which is the composite paper containing coffee grounds described in the first aspect of the present invention or the composite paper containing coffee grounds prepared by the method described in the second aspect of the present invention.

The fourth aspect of the present invention relates to a cigarette filter, which includes the filter plug forming paper and filter material according to the third aspect of the present invention, wherein the filter plug forming paper wraps the filter material.

The fifth aspect of the present invention relates to a cigarette filter, which includes a composite paper containing coffee grounds, a filter plug forming paper and a filter material, the filter plug forming paper wraps the filter material, and the composite paper containing coffee grounds wraps the filter material. The filter plug forming paper; wherein, the composite paper containing coffee grounds is the composite paper containing coffee grounds described in the first aspect of the present invention or prepared by the method described in the second aspect of the present invention.

The sixth aspect of the present invention relates to a tobacco product, including the cigarette filter described in the fourth or fifth aspect of the present invention;

Preferably, the tobacco product also includes shredded tobacco and cigarette paper;

Preferably, the tobacco product is a cigarette.

The seventh aspect of the present invention relates to the composite paper containing coffee grounds described in the first aspect of the present invention, the composite paper containing coffee grounds prepared by the method described in the second aspect of the present invention, and the filter plug forming paper described in the third aspect of the present invention Or the application of the cigarette filter described in the fourth or fifth aspect of the present invention in tobacco products.

In some embodiments of the seventh aspect of the present invention, the tobacco product is a cigarette.

In the present invention, Arabica coffee beans and Robusta coffee beans are conventional categories of coffee beans.

In the present invention, water washing, honey treatment, and solar treatment are conventional treatment methods in the process of producing coffee cherries into coffee beans.

In the present invention, softwood pulp is commercially available conventional softwood pulp, for example purchased from SODRABLUE F (Sweden), for example, the weighted average length of softwood pulp is 2 mm, and the average width is about 30.5 μm.

In the present invention, the synthetic fiber pulp is commercially available conventional synthetic fiber pulp, for example purchased from LENZIING (UK), for example, the specification of the synthetic fiber pulp is 4mm×1.7dtex.

In the present invention, polyacrylamide, polyoxyethylene, and styrene-maleic anhydride copolymer are commonly used reagents in the field, and their molecular weights and molecular weight distribution coefficients belong to conventional contents known to those skilled in the art.

The present invention has obtained following beneficial effect:

1. The composition of the composite paper containing coffee grounds in the present invention makes the composite paper have high tensile strength;

2. After the composite paper containing coffee grounds of the present invention is made into a filter and used in cigarettes, the tar content of cigarette mainstream smoke decreases, the content of nicotine and caffeine increases, the content of gas phase free radicals and solid phase free radicals decreases, and the pH value is between Within the appropriate range, the sensory quality, satisfaction and pleasure of cigarette smoking are improved.

Detailed ways

The embodiments of the present invention will be clearly and completely described below in conjunction with the examples. Apparently, the described examples are only some of the examples of the present invention, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The materials used in the following examples and comparative examples are as follows:

Softwood pulp: purchased from SODRA BLUE F (Sweden), with a weighted average length of 2 mm and an average width of about 30.5 μm;

Synthetic fiber pulp: purchased from LENZIING (UK), the size is 4mm×1.7dtex.

Example 1

(1) Pulverize the washed Arabica coffee beans, pass through a 60-mesh sieve, and collect the sieved coffee bean powder; add 1 times the volume of 80°C water to the coffee bean powder and soak for 24 hours, filter to obtain coffee grounds;

(2) Dry the coffee grounds at 50°C until the moisture is 6.0% W/W;

(3) Grind the dried coffee grounds in a jet mill (purchased from Shandong Jingxin Powder Equipment Technology Co., Ltd., model QLMA series), pass through a 400-mesh sieve, and collect the sieved coffee grounds powder;

(4) Mix coffee grounds powder, coniferous wood pulp and synthetic fiber pulp evenly, then add polyacrylamide (retention aid) and alkyl ketene dimer (sizing agent) with a weight average molecular weight of 2 to 4 million Continue to mix with glass powder (filler) to obtain a mixture; wherein, the mass ratio of coffee grounds powder, coniferous wood pulp and synthetic fiber pulp is 2:2:2, polyacrylamide and alkyl ketene dimer The mass is respectively 2.8% of the mass of the coffee grounds powder, and the mass of the glass powder is 1% of the mass of the coffee grounds powder;

(5) adding one volume of water to the mixture to carry out the slurry treatment at 10°C to obtain the slurry material;

(6) The bulk material is subjected to beating treatment by a beater until the degree of beating of the slurry reaches 27 ° SR, and now the solid content of the slurry is 4.5%;

(7) Slurry is carried out paper-making process, drying cylinder speed is 1350m/min, and drying cylinder pressure is 3.1bar, and airs and forms;

(8) cutting and calendering the formed paper, and then packaging it in roll paper to obtain composite paper 1;

(9) Wrap the filter material with a filter rod forming paper roll, and then roll and roll the composite paper 1 to wrap the filter rod forming paper to obtain a filter rod sample 1.

Example 2

(1) Pulverize the honey-treated Arabica coffee beans, pass through a 70-mesh sieve, and collect the sifted coffee bean powder; add 1 times the volume of 80°C water to the coffee bean powder and soak for 12 hours, filter to obtain coffee grounds;

(2) Dry the coffee grounds at 50°C until the moisture is 5.5% W/W;

(3) Grind the dried coffee grounds in a jet mill (purchased from Shandong Jingxin Powder Equipment Technology Co., Ltd., model QLMA series), pass through a 500-mesh sieve, and collect the sieved coffee grounds powder.

(4) Mix coffee grounds powder, coniferous wood pulp and synthetic fiber wood pulp evenly, then add polyoxyethylene (retention aid), styrene-maleic anhydride copolymer (sizing agent) and graphite (filler) to continue Mix evenly to obtain a mixture; wherein, the mass ratio of coffee grounds powder, softwood pulp and synthetic fiber pulp is 1:1:1, and the quality of polyoxyethylene and styrene-maleic anhydride copolymer is the coffee grounds powder quality respectively 1.8% of the mass of graphite, 2% of the mass of coffee grounds powder;

(5) Add one volume of water to the mixture and carry out the slurry treatment at 20°C to obtain the slurry material;

(6) The bulk material is subjected to beating treatment by a beater until the degree of beating of the slurry reaches 31 ° SR, and now the solid content of the slurry is 8.0%;

(7) Slurry is carried out papermaking process, drying cylinder speed is 1420m/min, and drying cylinder pressure is 4.3bar, dries and forms;

(8) cutting and calendering the formed paper, and then packaging it in roll paper to obtain composite paper 2;

(9) Wrap the filter material with a filter rod forming paper roll, and then roll and roll the composite paper 2 to wrap the filter rod forming paper to obtain a filter rod sample 2.

Example 3

(1) Crush the sun-treated Robusta coffee beans, pass through a 40-mesh sieve, and collect the sieved coffee bean powder; add 2 times the volume of 80°C water to the coffee bean powder and soak for 24 hours, filter to obtain coffee grounds ;

(2) Dry the coffee grounds at 60°C until the moisture is 6.5% W/W;

(3) Grind the dried coffee grounds in a jet mill (purchased from Shandong Jingxin Powder Equipment Technology Co., Ltd., model QLMA series), pass through a 600-mesh sieve, and collect the sieved coffee grounds powder;

(4) Mix coffee grounds powder, coniferous wood pulp and synthetic fiber wood pulp evenly, then add cationic polyacrylamide (retention aid) with a weight average molecular weight of 5 to 7 million, carboxymethyl cellulose (sizing agent) and Diatomaceous earth (filler) continues to mix uniformly, obtains mixture; Wherein, the mass ratio of coffee grounds powder, coniferous wood pulp and synthetic fiber pulp is 5:5:5, the mass ratio of cationic polyacrylamide and carboxymethyl cellulose 4.5% of the mass of the coffee grounds powder, and diatomaceous earth is 5% of the mass of the coffee grounds powder;

(5) Add one volume of water to the mixture and carry out the slurry treatment at 15° C. to obtain the slurry material;

(6) The bulk material is subjected to beating treatment by a beater until the degree of beating of the slurry reaches 31 ° SR, and now the solid content of the slurry is 11.2%;

(7) Slurry is carried out paper-making process, and dryer speed is 1570m/min, and dryer pressure is 2.9bar, and airs and forms;

(8) cutting and calendering the formed paper, and then packaging it in roll paper to obtain composite paper 3;

(9) Wrap the filter material with a filter rod forming paper roll, and then roll and roll the composite paper 3 to wrap the filter rod forming paper to obtain a filter rod sample 3 .

Comparative example 1

In step (5), the pulping treatment was carried out at 60° C., and the rest was the same as in Example 1 to obtain a filter stick sample A.

Comparative example 2

The coffee grounds powder obtained in step (3) of Example 1 was extracted at 50°C for 3 hours with 15 times the volume of 60%W/W ethanol solution, and the extract was concentrated at 70°C to a relative density of 1.4 (at 4°C with water) The density is as reference density), obtains coffee extract;

Mix coffee extract, coniferous wood pulp and synthetic fiber pulp evenly, then add polyacrylamide (retention aid) with a weight average molecular weight of 2 to 4 million, alkyl ketene dimer (sizing agent) and glass powder ( Filling agent) continue to mix evenly to obtain a mixture; wherein, the mass ratio of coffee extract, coniferous wood pulp and synthetic fiber pulp is 2:2:2, and the quality of polyacrylamide and alkylketene dimer is respectively coffee 2.8% of the mass of the extract and 1% of the mass of the coffee extract of the glass powder;

All the other are with embodiment 1; Obtain filter stick sample B.

Comparative example 3

The coffee grounds powder obtained in step (3) of Example 1 was extracted at 50°C for 3 hours with 15 times the volume of 60%W/W ethanol solution, and the extract was concentrated at 70°C to a relative density of 1.4 (at 4°C with water) The density is as reference density), obtains coffee extract;

Mix coniferous wood pulp and synthetic fiber pulp evenly, then add polyacrylamide (retention aid), alkyl ketene dimer (sizing agent) and glass powder (filler) with a weight average molecular weight of 2 to 4 million to continue Mix evenly to obtain a mixture; wherein, the mass ratio of softwood pulp and synthetic fiber slurry is 2:2, the quality of polyacrylamide and alkyl ketene dimer is respectively 2.8% of the quality of softwood pulp, and the quality of glass powder It is 1% of the mass of coniferous wood pulp; add one volume of water to the mixture and carry out the pulping process at 10°C to obtain a loose pulp material; the loose pulp material is beaten by a beater until the beating degree of the pulp reaches 27 °SR, the solid content of the slurry is 4.5% at this time; the slurry is processed by papermaking, the drying cylinder speed is 1350m/min, the drying cylinder pressure is 3.1bar, and it is dried and formed to obtain paper;

The coffee extract is coated on the front and back of the paper, and dried to obtain a composite paper, wherein the mass ratio of the coffee extract to the paper is (0.49-0.5):1; then it is cut and calendered, and then packaged in roll paper;

Wrap the filter material with a filter rod forming paper roll, and then roll and roll the composite paper to wrap the filter rod forming paper to obtain a filter rod sample C.

Comparative example 4

Steps (1)-(3) were omitted, and the coffee grounds powder was replaced with calcium carbonate powder passing through a 400-mesh sieve; the rest were the same as in Example 1 to obtain filter stick sample D.

The circumference of filter rod samples 1-3 and filter rod samples A-D are both 19.8mm, the length is 120mm, and the suction resistance is 3400Pa.

test case 1

Thickness meter and tensile strength tester produced by Sweden Lorentzen & Wettre Company were used to measure the thickness and tensile strength of composite paper 1-3 respectively, and the results are shown in Table 1.

Table 1

sample Thickness (μm) Tensile strength (N/m) Composite paper 1 109 580 Composite paper 2 102 510 Composite paper 3 112 650

It can be seen from Table 1 that the composition of the composite paper of the present invention significantly improves the tensile strength of the composite paper.

test case 2

Filter stick samples 1-3 and filter stick samples A-D were rolled by cigarette rolling equipment into cigarette samples 1-3 and A-D.

Smoke the above-mentioned cigarette samples on a 10-hole linear smoking machine; specific suction parameters: the duration of each puff is 2s, the volume of each puff is 35mL, the interval between puffs is 60s, and the mainstream smoke is collected ; Use the method in GB/T 19609-2004 "Determination of total particulate matter and tar by smoking machine for routine analysis of cigarettes" to measure the tar and nicotine content in the mainstream smoke of each cigarette sample; refer to the literature (Mou Dingrong, Lin Wenqiang, etc. .Determination of pH value of particulate matter and gas phase matter in mainstream cigarette smoke [J], Tobacco Science and Technology, 2009 (11): 40-43.) Using the aqueous solution extraction method of total particulate matter in cigarette smoke to test the mainstream smoke of each cigarette sample The pH value of the flue gas in the air; YQ7-2011 multi-parameter detector (purchased from Beijing Lingtian Intelligent Equipment Group Co., Ltd.) was used to directly measure the caffeine content in the mainstream smoke of each cigarette sample; the above results are shown in Table 2.

Cigarette smoke was determined by the method in the journal document "Technical Research on Reducing Free Radical Content in Cigarette Smoke" (Qu Zhigang, Zhou Jun, etc. Chinese Tobacco Journal [J], 2003, 9(3), p8-17) The gas-phase free radical content and the solid-phase free radical content in the sample are shown in Table 2 for the results.

10 professionals evaluated the sensory quality of cigarettes according to the national standard GB5606.4-2005 "Cigarette Part 4: Sensory Technical Requirements". Professionals also evaluated the satisfaction and pleasure of smoking cigarettes, and the average value was taken. The results are shown in Table 3-4.

Table 2

Table 3 Sensory quality of cigarettes

Table 4 Satisfaction and pleasure of smoking cigarettes

sample Satisfaction* (out of 10) Pleasure** (out of 10) Cigarette sample 1 8.5 9.0 Cigarette sample 2 8.5 8.5 Cigarette sample 3 9.0 9.0 Cigarette sample A 8.5 8.5 Cigarette sample B 7.0 7.0 Cigarette sample C 8.0 8.0 Cigarette sample D 6.5 6.0

*"Satisfaction" refers to the intake of alkaloids; **"Pleasure" generally refers to the positive, relaxed and happy comprehensive feelings given to consumers by cigarette aroma substances and alkaloids; the alkaloids here are nicotine and caffeine .

It can be seen from Table 2-4:

Compared with cigarette sample A, the content of nicotine and caffeine in the mainstream smoke of the cigarette sample of the present invention is higher, and the content of solid-phase free radicals is lower, and the aroma of the cigarette sample of the present invention is more intense and pleasant when smoked Stronger sense and higher sensory quality;

Compared with cigarette sample B, the content of nicotine and caffeine in the mainstream smoke of the cigarette sample of the present invention is higher, and the content of solid-phase free radicals and gas-phase free radicals is lower. More intense aroma, less miscellaneous gas, more comfortable aftertaste, stronger sense of satisfaction and pleasure, higher sensory quality;

Compared with cigarette sample C, the tar content in the mainstream smoke of the cigarette sample of the present invention is lower, the content of nicotine and caffeine is higher, and the content of solid-phase free radicals and gas-phase free radicals is lower. When the sample is smoked, the aroma is more intense, the aftertaste is more comfortable, the sense of satisfaction and pleasure is stronger, and the sensory quality is higher;

Compared with cigarette sample D, the tar content in the mainstream smoke of the cigarette sample of the present invention is lower, the content of nicotine and caffeine is higher, and the content of solid-phase free radicals and gas-phase free radicals is lower. When the sample is smoked, the aroma is more intense, more harmonious, less miscellaneous, less irritating, more comfortable aftertaste, stronger sense of satisfaction and pleasure, and higher sensory quality.

Therefore, after the composite paper of the present invention is used in cigarettes, the tar content, nicotine content and caffeine content in the mainstream smoke of cigarettes can be increased, and the aroma is more intense and harmonious when the cigarette is smoked, with less miscellaneous gas, less irritation and less aftertaste. More comfort, greater satisfaction and pleasure, higher sensory quality. Moreover, the pH value of the mainstream smoke of the cigarette sample of the present invention is in the range of 6.6-6.7.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (13)

1. A filter plug forming paper, which is a composite paper containing coffee grounds; Wherein, the described composite paper containing coffee grounds, in parts by weight, comprises:

The non-tobacco fiber pulp is selected from at least one of softwood pulp and synthetic fiber pulp, the retention aid is selected from at least one of polyacrylamide and polyoxyethylene, and the sizing agent is selected from alkyl At least one of ketene dimer, styrene-maleic anhydride copolymer and carboxymethyl cellulose, the filler is selected from at least one of glass powder, graphite and diatomaceous earth; The coffee grounds are prepared through the following steps: Crush the coffee beans, sieve, and collect the sieved coffee bean powder; Soak the coffee bean powder in water at 40°C to 100°C, and separate the solid and liquid to obtain coffee grounds; The described composite paper containing coffee grounds is prepared through the following steps: mixing coffee grounds and non-tobacco fiber pulp to obtain a first mixture; mixing the first mixture with a retention aid, a sizing agent, and a filler to obtain a second mixture; The second mixture is subjected to a slurry treatment and a beating treatment in sequence, and the temperature of the slurry treatment is 7°C to 30°C to obtain a mixed slurry; The mixed slurry is processed and dried to obtain a composite paper containing coffee grounds. 2. The filter plug wrap according to claim 1, characterized in that one or more of the following: A. The particle size of the coffee grounds is not more than 300 mesh; B. the coffee grounds are selected from at least one of Arabica coffee bean grounds and Robusta coffee bean grounds; C. the polyacrylamide is a cationic polyacrylamide; D. The moisture weight content of the coffee grounds is 2%w/w～10%w/w; E. The tensile strength of the composite paper containing coffee grounds is not less than 450N/m. 3. The filter plug wrapping paper according to claim 2, wherein, in item B, the coffee grounds are selected from washed Arabica coffee bean grounds, honey-treated Arabica coffee bean grounds, and solar-treated Arabica coffee bean grounds , at least one of washed Robusta coffee bean dregs, honey-treated Robusta coffee bean dregs, and sun-dried Robusta coffee bean dregs. 4. The plug wrap of claim 1, wherein the weight ratio of softwood pulp to synthetic fiber pulp is 1:1. 5. The plug wrap according to claim 2, wherein, in item C, the polyacrylamide has a weight average molecular weight of 1 million to 8 million. 6. The plug wrap according to claim 2, wherein, in item C, the polyacrylamide has a weight average molecular weight of 2 million to 4 million or 5 million to 7 million. 7. The filter plug forming paper according to claim 1, wherein, in the step of preparing the composite paper containing coffee grounds, before the slurry treatment, the solid-liquid volume ratio of 1:(1～3) is added to the Water was added to the second mixture. 8. The filter plug wrap according to any one of claims 1 to 7, wherein, in the step of preparing the composite paper containing coffee grounds, it is characterized by one or more of the following: a. The beating degree of the mixed slurry is 24～37°SR; b. The solid content of the mixed slurry is 2%w/w～13%w/w; c. The conditions of the papermaking process: the drying cylinder speed is 1200-1700m/min, and the drying cylinder pressure is 2.4-4.6bar; d. The step also includes: cutting, calendering and packaging the composite paper containing coffee grounds. 9. A cigarette filter, comprising the filter plug wrapping paper and filter material according to any one of claims 1 to 8, and the filter plug wrapping paper wraps the filter material. 10. A tobacco product comprising the cigarette filter of claim 9. 11. The tobacco product according to claim 10, which is a cigarette. 12. Application of the filter plug wrap according to any one of claims 1 to 8 or the cigarette filter tip according to claim 9 in tobacco products. 13. Use according to claim 12, wherein the tobacco product is a cigarette.