CN113957746A - A kind of sepiolite composite paper, its preparation method and use - Google Patents

Abstract

Translated fromChinese

本发明提供一种海泡石复合纸、其制备方法和用途，具体地，本发明提供一种海泡石复合纸的制备方法，其包括以下步骤：(1)将海泡石与发雾剂按重量比为1：(10‑50)在15‑30℃混合5min‑1h，固液分离，收集固态物并干燥；(2)将步骤(1)得到的固态物加入非烟草纤维浆料，依次进行散浆和打浆处理，得混合浆料，其中所述非烟草纤维浆料和固态物的重量比为(1‑1.5)：1；(3)将步骤(2)中所述混合浆料进行抄造处理，得所述海泡石复合纸。所述纸张无明显异味和不良残留，对抽吸无负面影响，可用于制备加热非燃烧烟草制品。所述海泡石复合纸可明显提高烟草制品中发雾剂负载量，从而实现快速、均匀、大量释放烟雾的效果，提高受众感官体验，同时对于丰富加热非燃烧卷烟载发雾剂形式具有较为重要的意义。The present invention provides a kind of sepiolite composite paper, its preparation method and use, specifically, the present invention provides a kind of preparation method of sepiolite composite paper, which comprises the following steps: (1) mix sepiolite and fogging agent The weight ratio is 1: (10-50) mixed at 15-30 ℃ for 5min-1h, solid-liquid separation, collecting solids and drying; (2) adding the solids obtained in step (1) to the non-tobacco fiber slurry, Carry out pulping and beating treatment in turn to obtain a mixed slurry, wherein the weight ratio of the non-tobacco fiber slurry to the solids is (1-1.5): 1; (3) the mixed slurry described in step (2) is The papermaking process is carried out to obtain the sepiolite composite paper. The paper has no obvious odor and bad residue, has no negative effect on smoking, and can be used for preparing heat-not-burn tobacco products. The sepiolite composite paper can significantly increase the load of aerosols in tobacco products, so as to achieve the effect of rapid, uniform, and massive release of smoke, improve the sensory experience of the audience, and at the same time, it has a relatively high performance in enriching the form of aerosols in heated non-combustion cigarettes. Significance.

Description

Sepiolite composite paper, preparation method and application thereof

Technical Field

The invention relates to the field of heating non-combustion products, in particular to sepiolite composite paper, a preparation method and application thereof.

Background

The heated non-burning cigarette (HnB) is a novel tobacco product, and is mainly formed by heating a cigarette bullet through a heat source to smoke, and smoke for a consumer to inhale is generated in a non-burning state, so that harmful smoke components generated by burning and thermal cracking in a conventional cigarette are reduced, and side-stream smoke is not generated.

The heating non-combustion fogging amount is an important factor influencing the heating non-combustion smoking feeling, and the lower heating temperature (200-. At present, most schemes adopt a mode of increasing the loading amount of the atomizing agent, but the capacity of heating the loaded atomizing agent which does not burn the tobacco raw material is limited, and the atomizing agent added into the tobacco raw material is easily absorbed by the tobacco raw material and is lost due to mechanical extrusion.

Disclosure of Invention

The invention takes sepiolite as a fogging agent carrier, and the sepiolite is mixed with non-tobacco fiber pulp to manufacture paper. The paper can obviously improve the loading capacity of the fogging agent, the novel cigarette prepared on the basis can realize the effect of quickly, uniformly and greatly releasing smoke, the sensory experience of audiences is improved, and the paper has important significance for enriching the form of the fogging agent carried by the heated non-burning cigarette.

Accordingly, in one aspect, the present invention provides a method for preparing sepiolite composite paper, comprising the steps of:

(1) mixing sepiolite and a fogging agent according to the weight ratio of 1: (10-50) mixing at 15-30 deg.C for 5min-1h (e.g. 0.5h), performing solid-liquid separation, collecting solid, and drying (e.g. drying in the shade);

(2) adding the solid matter obtained in the step (1) into non-tobacco fiber pulp, and sequentially performing pulp dispersing and pulping treatment to obtain mixed pulp, wherein the weight ratio of the non-tobacco fiber pulp to the solid matter is (0.5-1.5): 1;

(3) and (3) making the mixed slurry obtained in the step (2) to obtain the sepiolite composite paper.

In some embodiments, the sepiolite particle size in step (1) is 50 to 100 mesh, for example 50 mesh, 60 mesh, 70 mesh, 80 mesh, 90 mesh or 100 mesh.

In some embodiments, before step (1), the method further comprises a step of drying and/or activating the sepiolite.

In some embodiments, the drying is performed at 40-100 ℃ (e.g., 80 ℃). In some embodiments, drying is for 1-48h, e.g., 1h, 5h, 10h, 24h, 36h, or 48 h.

In some embodiments, the activation is performed after drying is complete. In some embodiments, the activation refers to treatment with a low concentration of mineral acid. In some embodiments, the inorganic acid is selected from hydrochloric acid, nitric acid, sulfuric acid, acetic acid, and the like.

In some embodiments, the aerosol of step (1) is selected from one or more of glycerol, propylene glycol or alcohol.

In some embodiments, the weight ratio of sepiolite to aerosol in step (1) is 1: 10. 1:15, 1:20, 1:30, 1:40, or 1: 50.

In some embodiments, the loading of fogging agent in the solids of step (1) is 80% to 99% (e.g., 80%, 85%, 90%, or 96%).

In some embodiments, the non-tobacco pulp in step (2) is selected from one or more of softwood pulp, hardwood pulp, hemp pulp.

In some embodiments, the non-tobacco slurry of step (2) is further supplemented with one or more of the following adjuvants: 0.1-5 parts of retention aid, 0.1-5 parts of sizing agent and 1-10 parts of filler.

In some embodiments, one or more of the following is also added to the non-tobacco slurry: 0.1-2 parts of retention aid, 0.1-2 parts of sizing agent and 3-10 parts of filler.

In some embodiments, the retention aid is selected from the group consisting of polyacrylamide, polyoxyethylene, and organic amine (ammonium salt) based retention aids.

In some embodiments, the sizing agent is selected from the group consisting of internal sizing agents and surface sizing agents. In some embodiments, the internal sizing agent is selected from rosin, unmodified or modified starch (PVA), Alkyl Ketene Dimer (AKD), Alkenyl Succinic Anhydride (ASA). In some embodiments, the surface sizing agent is selected from the group consisting of modified starch, paraffin emulsion, styrene-maleic anhydride, and carboxymethyl cellulose.

In some embodiments, the filler is selected from kaolin, talc, carbon black, alumina powder, glass frit, graphite, and diatomaceous earth.

In some embodiments, the adjuvant comprises 7% to 30% (e.g., 7%, 10%, 15%, 20%, 25%, or 30%) by weight of the non-tobacco slurry.

In some embodiments, the weight ratio of the non-tobacco fiber slurry to solids in step (2) is 0.5:1, 0.8:1, 1: 1. 1.1:1, 1.2:1, 1.3:1, 1.4:1 or 1.5: 1.

In some embodiments, the slurry operating conditions in step (2) are: adding water according to the solid-to-liquid ratio of 1:1, and performing slurry dispersing treatment at 40-70 ℃;

in some embodiments, the pulping operating conditions in step (2) are: and (4) putting the pulp subjected to pulp dispersing treatment into a pulping machine until the pulping degree is 20-40 DEG SR.

In some embodiments, the concentration of the mixed slurry in step (2) is 3-15%, e.g., 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15%.

In some embodiments, the papermaking operating conditions in step (3) are: the drying speed is 1200-1700m/min, and the drying pressure is 2.0-5.0 bar.

In some embodiments, the step of drying, cutting, calendaring and/or packaging the paper is further included after step (3).

In some embodiments, the activated carbon fiber composite paper has a paper thickness of 145-210 um and a tensile strength of 450-780N/m.

In some embodiments, the loading of the fogging agent in the activated carbon fiber composite paper is 10-30% (e.g., 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 25%, or 30%).

In another aspect, the present invention provides an aerosol-loaded paper, which is prepared by the above process.

In another aspect, the invention provides a leaf formulation for a heated non-combustible cigarette comprising a paper sheet carrying the aerosol as described above and cut tobacco.

In some embodiments, the paper is 0.5 to 2mm in area²Of the chip (a).

In some embodiments, the paper to tobacco weight ratio is (0.1-0.5): 1; preferably (0.1-0.2): 1.

in another aspect, the present invention provides a tobacco segment for a heated non-burning cigarette, the lamina set formulation of which is as hereinbefore described.

In another aspect, the invention provides a heated non-burning cigarette comprising a tobacco segment as described above.

Use of the aerosol-laden paper described herein in the manufacture of a heated non-combustible smoking article. In some embodiments, the tobacco product is a cigarette or a tobacco segment.

In the present application, "part" means part by weight (or mass) "and"% "means percent by weight (or mass)" unless otherwise taught.

Advantageous effects of the invention

The invention provides a preparation method of sepiolite composite paper. The paper prepared by the method has no obvious peculiar smell or harmful residues, can be used for preparing heating non-combustion tobacco products, can obviously improve the loading capacity of the fogging agent, realizes the effect of quickly, uniformly and greatly releasing smoke, improves the sensory experience of audiences, and has important significance for enriching the form of the fogging agent carried by the heating non-combustion cigarettes.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to examples, but those skilled in the art will appreciate that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.

Example 1

(1) Drying sepiolite at 50 deg.C for 24 hr.

(2) And (3) carrying out low-concentration acid solution activation treatment on the dried sepiolite, and removing the redundant acid solution after activation.

(3) Using glycerol as a fogging agent for standby;

(4) preparing raw materials according to the following mass percentages: aerosol/sepiolite 10: 1. Putting the sepiolite into the fogging agent, stirring for 10 minutes at normal temperature to fully soak the sepiolite, uniformly mixing and standing for 30 minutes, then taking out the sepiolite loaded with the fogging agent, drying in the shade at normal temperature, and standing for later use after drying, wherein the loading capacity of the fogging agent is 85%.

(5) Pulping the fiber raw material: the raw wood is processed into fiber pulp after removing the wood skin and the wood knots, and the synthetic fiber is directly processed into the fiber pulp.

(6) Adding the sepiolite material carrying the fogging agent prepared in the step (4) into the fiber slurry obtained in the step (4), adding 200-400 million of polyacrylamide, alkyl ketene dimer and glass powder, wherein the mass ratio of the activated carbon fiber carrying the fogging agent to the fiber slurry is 1:1, the mass of the polyacrylamide and the mass of the alkyl ketene dimer are respectively 0.25% of the mass of the fiber slurry, the mass of the glass powder is 7.5% of the mass of the fiber slurry, and then carrying out pulp dispersing at 50 ℃, beating degree of 27 DEG SR, gluing and filling.

(7) Manufacturing paper: the drying speed is 1350m/min, the drying pressure is 3.1bar, the treated pulp is evenly interwoven and dehydrated, and the pulp is dried and formed.

(8) And (4) cutting, calendaring and the like the formed paper, and then winding the paper and packaging.

(9) Cutting the sepiolite paper carrying the fogging agent into pieces with the area of 2mm²Small fragments of random shape; and in the tobacco shred blending stage, adding the sepiolite paper fragments carrying the fogging agent according to the mass ratio of 40%, uniformly blending, and rolling by a cigarette making machine to obtain a second heated non-combustion tobacco section sample. The loading of the aerosol was 17%.

Example 2

(1) Drying sepiolite at 50 deg.C for 24 hr.

(2) And (3) carrying out low-concentration acid solution activation treatment on the dried sepiolite, and removing the redundant acid solution after activation.

(3) Using glycerol as a fogging agent for standby;

(4) preparing raw materials according to the following mass percentages: fogging agent/sepiolite 15: 1. Putting the sepiolite into the fogging agent, stirring for 15 minutes at normal temperature to fully soak the sepiolite, uniformly mixing and standing for 40 minutes, then taking out the sepiolite loaded with the fogging agent, drying in the shade at normal temperature, and standing for later use after drying, wherein the loading capacity of the fogging agent is 90%.

(5) Pulping the fiber raw material: the raw wood is processed into fiber pulp, and then the synthetic fiber is directly processed into fiber pulp.

(6) Adding the sepiolite material carrying the fogging agent prepared in the step (4) into the fiber slurry prepared in the step (4), adding low molecular weight polyoxyethylene, a styrene-maleic anhydride copolymer and graphite, wherein the mass ratio of the activated carbon fiber carrying the fogging agent to the fiber slurry is 3:2, the mass of the polyoxyethylene and the styrene-maleic anhydride copolymer is respectively 2.2% of the mass of the fiber slurry, the mass of the graphite is 8.2% of the mass of the fiber slurry, and then dispersing at 55 ℃, beating at 31 DEG SR, adding glue and filling.

(7) Manufacturing paper: the drying speed is 1350m/min, the drying pressure is 4.3bar, the treated pulp is evenly interwoven and dehydrated, and the pulp is dried and formed.

(8) And (4) cutting, calendaring and the like the formed paper, and then winding the paper and packaging.

(9) Cutting the sepiolite paper carrying the fogging agent into pieces with the area of 1mm²Small fragments of random shape; and in the tobacco shred blending stage, adding the sepiolite paper fragments carrying the fogging agent according to the mass ratio of 35%, uniformly blending, and rolling by a cigarette making machine to obtain a third heated non-combustion tobacco section sample. The loading of the fogging agent was 18%.

Example 3

(1) Drying sepiolite at 50 deg.C for 24 hr.

(2) And (3) carrying out low-concentration acid solution activation treatment on the dried sepiolite, and removing the redundant acid solution after activation.

(3) Using glycerol as a fogging agent for standby;

(4) preparing raw materials according to the following mass percentages: fogging agent/sepiolite was 20: 1. Putting the sepiolite into the fogging agent, stirring for 30 minutes at normal temperature to fully soak the sepiolite, uniformly mixing and standing for 60 minutes, then taking out the sepiolite loaded with the fogging agent, drying in the shade at normal temperature, and standing for later use after drying, wherein the loading capacity of the fogging agent is 96%.

(5) Pulping the fiber raw material: the raw wood is processed into fiber pulp after removing the wood skin and the wood knots, and the synthetic fiber is directly processed into the fiber pulp.

(6) Adding the sepiolite material carrying the fogging agent prepared in the step (4) into the fiber slurry prepared in the step (4), adding 500-700 million polyacrylamide, carboxymethyl cellulose and diatomite, wherein the mass ratio of the activated carbon fiber carrying the fogging agent to the fiber slurry is 1:3, the mass of the cationic polyacrylamide and the mass of the carboxymethyl cellulose are respectively 4% of the mass of the fiber slurry, and the mass of the diatomite is 14% of the mass of the fiber slurry, and then dispersing, pulping, gluing and filling.

(7) Manufacturing paper: the drying speed is 1570m/min, the drying pressure is 2.9bar, the treated pulp is evenly interwoven and dehydrated, and the pulp is dried and molded.

(8) And (4) cutting, calendaring and the like the formed paper, and then winding the paper and packaging.

(9) Cutting the sepiolite paper carrying the fogging agent into pieces with the area of 0.5mm²Small fragments of random shape; and in the tobacco shred blending stage, adding the sepiolite paper fragments carrying the fogging agent according to the mass ratio of 45%, uniformly blending, and rolling by a cigarette making machine to obtain a heated non-combustion tobacco section sample IV. The loading of the fogging agent is 10%.

Comparative example 1:

glycerin is adopted as the fogging agent. Adding the fogging agent into the novel tobacco cigarette sheet spraying liquid according to the mass fraction of 20%, uniformly spraying the fogging agent into disordered sheets, and performing rolling connection to obtain a disordered heating non-combustible tobacco section sample 1. Comparative 1 had a fogging agent loading of 17%. The disordered heating non-combustible tobacco section is different from the traditional heating non-combustible tobacco section, is consistent with the distribution mode of the traditional cigarette tobacco shreds and is in a disordered state.

Comparative example 2:

glycerin is adopted as the fogging agent. Adding 25% of fogging agent by mass into novel tobacco cigarette sheet spraying liquid, uniformly spraying the fogging agent into disordered sheets, and performing rolling connection to obtain a disordered heating non-combustible tobacco section sample 2. Comparative 2 had a fogging agent loading of 18%. The disordered heating non-combustible tobacco section is different from the traditional heating non-combustible tobacco section, is consistent with the distribution mode of the traditional cigarette tobacco shreds and is in a disordered state.

Comparative example 3:

glycerin is adopted as the fogging agent. Adding the fogging agent into the novel tobacco cigarette sheet spraying liquid according to the mass fraction of 16%, uniformly spraying the fogging agent into disordered sheets, and performing rolling connection to obtain a disordered heating non-combustible tobacco section sample 3. Comparative 3 the fogging agent loading was 10%. The disordered heating non-combustible tobacco section is different from the traditional heating non-combustible tobacco section, is consistent with the distribution mode of the traditional cigarette tobacco shreds and is in a disordered state.

The cigarette added with the fogging agent is subjected to smoke suction one by one on a 10-pore linear smoking machine by utilizing a heating appliance for heating a non-combustible product, and the specific suction parameters are as follows: puff volume 50mL, puff duration 2s, puff interval 30s, puff by puff and total levels of propylene glycol and glycerol in mainstream smoke were tested, respectively, and the results are shown in table 1.

Claims (10)

1. A preparation method of sepiolite composite paper comprises the following steps:

(1) mixing sepiolite and a fogging agent according to the weight ratio of 1: (10-50) mixing for 5min-1h at 15-30 ℃, carrying out solid-liquid separation, collecting solid matters and drying;

(2) adding the solid matter obtained in the step (1) into non-tobacco fiber pulp, and sequentially performing pulp dispersing and pulping treatment to obtain mixed pulp, wherein the weight ratio of the non-tobacco fiber pulp to the solid matter is (0.5-1.5): 1;

(3) and (3) making the mixed slurry obtained in the step (2) to obtain the sepiolite composite paper.

2. The process of claim 1, wherein the sepiolite particle size in step (1) is from 50 to 100 mesh;

preferably, before the step (1), the method further comprises the step of drying and/or activating the sepiolite;

preferably, the drying is carried out at 40-100 ℃, preferably for 1-48 h;

preferably, the activation refers to treatment with a low concentration (1-10%) of mineral acid (e.g., hydrochloric acid, nitric acid, sulfuric acid, and acetic acid).

3. The method of any one of claims 1 or 2, wherein in step (1) the aerosol is selected from one or more of glycerol, propylene glycol or alcohol;

preferably, the amount of the fogging agent loaded in the solid in the step (1) is 80-99%.

4. The process of any one of claims 1 to 3, wherein the non-tobacco pulp in step (2) is selected from one or more of softwood pulp, hardwood pulp, hemp pulp;

preferably, the non-tobacco pulp in the step (2) is added with one or more of the following additives: 0.1-5 parts of retention aid, 0.1-5 parts of sizing agent and 1-10 parts of filler; further preferably, the non-tobacco slurry further comprises one or more of the following: 0.1-2 parts of retention aid, 0.1-2 parts of sizing agent and 3-10 parts of filler;

preferably, the retention aid is selected from retention aids of the polyacrylamide, polyoxyethylene and organic amine (ammonium salt) type; preferably, the sizing agent is selected from the group consisting of internal sizing agents and surface sizing agents; preferably selected from the group consisting of rosin, unmodified and modified starch (PVA), Alkyl Ketene Dimer (AKD), Alkenyl Succinic Anhydride (ASA), paraffin emulsions, styrene-maleic anhydride and carboxymethylcellulose; preferably, the filler is selected from kaolin, talc, carbon black, alumina powder, glass powder, graphite, and diatomaceous earth;

preferably, the adjuvant accounts for 7-30% of the weight of the non-tobacco pulp;

preferably, the slurry dispersing operation conditions in the step (2) are as follows: adding water according to the solid-to-liquid ratio of 1:1, and performing slurry dispersing treatment at 50-70 ℃;

preferably, the beating operation conditions in the step (2) are as follows: putting the pulp subjected to pulp dispersing treatment into a pulping machine until the pulping degree is 24-37 DEG SR;

preferably, the concentration of the mixed slurry in the step (2) is 3-15%.

5. The process of any one of claims 1 to 4, wherein the papermaking in step (3) is wet papermaking; preferred operating conditions are: the drying speed is 1200-1700m/min, and the drying pressure is 2.4-4.6 bar;

preferably, the step (3) is followed by the step of drying, cutting, calendering and/or packaging the paper;

preferably, the thickness of the activated carbon fiber composite paper is 145-210 um, and the tensile strength is 450-780N/m;

preferably, the loading amount of the fogging agent in the activated carbon fiber composite paper is 10-30%.

6. Sepiolite composite paper produced by the process of any one of claims 1 to 5.

7. A leaf-set formulation for a heated non-combustible cigarette comprising the sepiolite composite paper of claim 6 and tobacco cut filler;

preferably, the paper is 0.5-2mm in area²The fragments of (a);

preferably, the weight ratio of the paper to the cut tobacco is (0.1-0.5): 1; preferably (0.1-0.2): 1.

8. a tobacco segment for a heated, non-burning cigarette, the lamina set formulation of which is as defined in claim 7.

9. A heated, non-burning cigarette comprising the tobacco segment of claim 8.

10. Use of the sepiolite composite paper of claim 6 in the manufacture of a heated non-combustible smoking article;

preferably, the tobacco product is a cigarette or a tobacco segment.