Film paper and preparation method thereof and nicotine bag

Abstract

The present application discloses a film paper and a preparation method thereof and a nicotine bag. In terms of mass fractions, the film paper consists of 80 to 200 parts of plant starch, 1 to 10 parts of a pre-chemical agent, 0.5 to 3 parts of a thickener, and 0.5 to 15 parts of a stabilizer; the stabilizer includes one or more of hydroxypropyl distarch phosphate, sucrose fatty acid ester, β-cyclodextrin, maltodextrin, and sodium carboxymethyl cellulose. The present application provides a film paper, which is obtained by matching the components of plant starch, pre-chemical agent, thickener, and specific stabilizer to obtain a film paper with good sustained release. The film paper is used in a nicotine bag to have a good sustained release effect on the nicotine bag matrix, avoiding too fast release of nicotine and reducing obvious irritation to the oral cavity.

Description

Technical Field

[0001] The present application relates to the field of packaging materials, and in particular to a film paper and a preparation method thereof, as well as a nicotine bag. Background Art

[0002] Nicotine pouches are a type of nicotine composition wrapped in non-woven fabrics and containing nicotine or nicotine salts, fillers, humectants, pH regulators, flavors and other additives. They are a new type of smoke-free product. Nicotine pouches do not produce smoke when used, and their harm to the human body and environmental impact are relatively low. Nicotine pouches are not only beautiful in appearance, but also convenient to use and carry. Generally, they are placed directly between the upper and lower gums and lips. The contact between the pouch and the oral mucosa allows consumers to get the satisfaction of nicotine without using tobacco products.

[0003] The nicotine in nicotine bags mostly exists in the form of tobacco extracts, free nicotine and liquid nicotine salt. Traditional non-woven fabrics as wrapping materials will cause nicotine to be released too quickly, and usually a noticeable irritation will be felt in the mouth. Summary of the invention

[0004] Based on this, it is necessary to provide a film paper for sustained-release nicotine, a preparation method thereof, and a nicotine bag.

[0005] The present application provides a film paper, which comprises, by weight, 80 to 200 parts of plant starch, 1 to 10 parts of a pre-curing agent, 0.5 to 3 parts of a thickener, and 0.5 to 15 parts of a stabilizer;

[0006] The stabilizer includes one or more of hydroxypropyl distarch phosphate, sucrose fatty acid ester, β-cyclodextrin, maltodextrin and sodium carboxymethyl cellulose.

[0007] In one embodiment, 0.0001 to 5 parts of a pH adjuster are also included.

[0008] In one embodiment, the thickness of the membrane paper is 0.02 mm ~ 0.04 mm.

[0009] In one embodiment, one or more of the following conditions are met:

[0010] (1) The plant starch includes one or more of corn starch, mung bean starch, cassava starch, sweet potato starch, potato starch, wheat starch, water chestnut starch and lotus root starch;

[0011] (2) The pre-treatment agent includes phosphatidylcholine;

[0012] (3) The thickener includes one or more of pectin, alginate, gelatin, konjac gum, guar gum and carrageenan.

[0013] The present application also provides a method for preparing the above-mentioned membrane paper, comprising the following steps:

[0014] Step S1: preparing membrane solution;

[0015] Step S2: coating the membrane liquid on a substrate, drying, and preparing membrane paper;

[0016] The membrane liquid comprises, by weight, 80 to 200 parts of plant starch, 1 to 10 parts of a pre-curing agent, 0.5 to 3 parts of a thickener, and 0.5 to 15 parts of a stabilizer.

[0017] In one embodiment, the step S1 comprises:

[0018] Step S11: selecting 80 to 200 parts of the plant starch, 0.5 to 3 parts of the thickener, and 0.5 to 15 parts of the stabilizer by weight, and mixing them with the first solvent to prepare a first emulsion;

[0019] Step S12: According to the mass fraction, select the mass ratio as (10 -4 ~10 -1 ) : 1: (50-100) pH adjusting agent, the pre-chemical agent and the second solvent are mixed to prepare a second emulsion;

[0020] Step S13: uniformly mixing the first emulsion and the second emulsion to prepare the membrane solution, wherein the mass ratio of the first emulsion to the second emulsion is (1-4): (1-3).

[0021] In one embodiment, the step S11 further includes:

[0022] Step S111: selecting 80 to 200 parts of the plant starch, placing them in the first solvent, mixing and stirring until emulsified to prepare a plant starch emulsion; wherein the mass ratio of the plant starch to the first solvent is 1:(1-6);

[0023] Step S112: adding 0.5 to 3 parts of a thickener and 0.5 to 15 parts of a stabilizer to the plant starch emulsion, stirring and preheating to a first temperature to prepare the first emulsion.

[0024] In one embodiment, the step S12 further includes:

[0025] Step S121: heating the pH adjuster to a second temperature;

[0026] Step S122: adding the pre-curing agent and the second solvent to the pH adjusting agent heated to the second temperature, stirring until the pre-curing agent is completely dissolved; and cooling to 30° C. to 40° C. to prepare the second emulsion.

[0027] Furthermore, the present application also provides a nicotine bag, comprising a nicotine bag matrix and a composite film wrapping the nicotine bag matrix; the composite film comprises a laminated base film and the film paper as described above, and the film paper is arranged between the base film and the nicotine bag matrix.

[0028] In one embodiment, the thickness of the membrane paper is 0.02 mm~0.04 mm.

[0029] The present application provides a film paper, which is obtained by combining plant starch, a pre-chemical agent, a thickener and a specific stabilizer to obtain a film paper with good sustained release properties. The film paper is used in a nicotine bag and has a good sustained release effect on the nicotine bag matrix, thereby avoiding excessive release of nicotine and reducing obvious irritation to the oral cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 The figure is a relationship diagram between the sustained release degree and time of the membrane paper of each embodiment and comparative example. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] The term "and / or" used herein includes any one of two or more related listed items, and also includes any and all combinations of the related listed items, wherein the any and all combinations include any combination of two related listed items, any more related listed items, or all related listed items. For example, "A and / or B" includes three parallel solutions: A, B, and "a combination of A and B".

[0035] In this article, unless otherwise specified, "one or more" means any one of the listed items or any combination of the listed items. Similarly, "one or more" and other expressions that mean "one or more" are also understood in the same way unless otherwise specified.

[0036] In this document, "further", "further", "particularly", "for example", "such as", "example", "for example", etc. are used for descriptive purposes, indicating that the previous and subsequent technical solutions are related in terms of the content covered, but should not be understood as limiting the previous technical solution, nor can they be understood as limiting the scope of protection of this document. In this document, unless otherwise specified, A (such as B) means that B is a non-limiting example of A, and it can be understood that A is not limited to B.

[0037] Herein, "optionally", "optional", and "optional" mean optional, that is, any one of the two parallel schemes of "yes" or "no". If multiple "optional" items appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "optional" item is independent of each other. In this application, descriptions such as "optionally contain", "optionally include", etc. mean "contain or not contain". "Optional component X" means that component X exists or does not exist, or means that component X is contained or not contained.

[0038] In this document, the terms "first", "second", "third", "fourth", etc. in "the first aspect", "the second aspect", "the third aspect", "the fourth aspect", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity, nor can they be understood as implicitly indicating the importance or quantity of the indicated technical features. Moreover, "first", "second", "third", "fourth", etc. only serve the purpose of non-exhaustive enumeration and description, and it should be understood that they do not constitute a closed limitation on quantity.

[0039] In this article, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0040] Herein, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values ​​within the numerical interval is considered to be continuous and includes the two numerical endpoints (i.e., the minimum and maximum values) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when a numerical interval only refers to integers within the numerical interval, including the two endpoint integers of the numerical range, and each integer between the two endpoints, is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical ranges disclosed herein should be understood to include any and all sub-ranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows broadly including numerical interval types such as percentage intervals, ratio intervals, and ratio intervals.

[0041] Herein, the term "room temperature" or "normal temperature" generally refers to 4°C~35°C, for example, 20°C±5°C. In some embodiments herein, "room temperature" or "normal temperature" refers to 10°C~30°C. In some embodiments herein, "room temperature" or "normal temperature" refers to 20°C~30°C.

[0042] In this article, if there are multiple steps involved in the method flow, unless there is a clear different description in this article, there is no strict order restriction for the execution of these steps, and they can be executed in other orders than described. Moreover, any step can include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn, alternating or simultaneously with other steps or parts of sub-steps or stages of other steps.

[0043] The present application provides a film paper, which comprises, by weight, 80 to 200 parts of plant starch, 1 to 10 parts of a pre-curing agent, 0.5 to 3 parts of a thickener, and 0.5 to 15 parts of a stabilizer;

[0044] The stabilizer includes one or more of hydroxypropyl distarch phosphate, sucrose fatty acid ester, β-cyclodextrin, maltodextrin and sodium carboxymethylcellulose.

[0045] It can be understood that the pre-chemical agent can make the solution system mix more evenly, reduce bubbles and particles, etc., have better ductility, be smoother, and the surface of the film paper will be smoother in the later stage.

[0046] Furthermore, the film paper, in parts by mass, comprises 100 to 200 parts of plant starch, 1 to 5 parts of a pre-curing agent, 0.5 to 2 parts of a thickener and 0.5 to 10 parts of a stabilizer.

[0047] In a specific example, the composition of the membrane paper further includes 0.0001 to 0.5 parts of a pH adjuster. Furthermore, the composition of the membrane paper further includes 0.0001 to 0.1 parts of a pH adjuster.

[0048] In a specific example, the pH adjuster includes one or both of sodium hydroxide and calcium carbonate.

[0049] In a specific example, the plant starch includes one or more of corn starch, mung bean starch, tapioca starch, sweet potato starch, potato starch, wheat starch, water chestnut starch and lotus root starch.

[0050] In a specific example, the pre-treatment agent includes phosphatidylcholine. It can be understood that the pre-treatment agent can be phosphatidylcholine or one or both of soybean lecithin and egg yolk lecithin whose composition includes phosphatidylcholine.

[0051] In a specific example, the thickener includes one or more of pectin, alginate, gelatin, konjac gum, guar gum, and carrageenan.

[0052] In a specific example, the thickness of the membrane paper is 0.02 mm to 0.04 mm. Specifically, the thickness of the membrane paper can be, but is not limited to, 0.02 mm, 0.025 mm, 0.03 mm, 0.035 mm or 0.04 mm.

[0053] The present application provides a film paper, which is obtained by combining plant starch, a pre-chemical agent, a thickener and a specific stabilizer to obtain a film paper with good sustained release properties. The film paper is used in a nicotine bag and has a good sustained release effect on the nicotine bag matrix, thereby avoiding excessive release of nicotine and reducing obvious irritation to the oral cavity.

[0054] The present application also provides a method for preparing the above-mentioned membrane paper, comprising the following steps:

[0055] Step S1: preparing membrane solution;

[0056] Step S2: coating the film liquid on the substrate, drying, and preparing the film paper;

[0057] The membrane liquid is composed of 80 to 200 parts of plant starch, 1 to 10 parts of a pre-curing agent, 0.5 to 3 parts of a thickener and 0.5 to 15 parts of a stabilizer in parts by mass.

[0058] It can be understood that the above-mentioned substrate only serves as a support so that the membrane liquid forms membrane paper on the substrate.

[0059] In a specific example, step S1: preparing the membrane solution includes the following steps:

[0060] Step S11: preparing a first emulsion. Select 80 to 200 parts of plant starch, 0.5 to 3 parts of a thickener, and 0.5 to 15 parts of a stabilizer by weight, and mix and stir with a certain amount of a first solvent to prepare a first emulsion;

[0061] Among them, the plant starch includes one or more of corn starch, mung bean starch, cassava starch, sweet potato starch, potato starch, wheat starch, water chestnut starch and lotus root starch.

[0062] Specifically, the particle size of the plant starch is 0.01 mm to 0.15 mm. It can be understood that the particle size of the plant starch can be but is not limited to 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, 0.11 mm, 0.12 mm, 0.13 mm, 0.14 mm or 0.15 mm.

[0063] Wherein, the thickener includes one or more of pectin, alginate, gelatin, konjac gum, guar gum and carrageenan.

[0064] The stabilizer includes one or more of hydroxypropyl distarch phosphate (HPDSP), sucrose fatty acid ester, β-cyclodextrin, maltodextrin and sodium carboxymethyl cellulose. Preferably, the stabilizer is hydroxypropyl distarch phosphate (HPDSP).

[0065] The material of the first solvent may be water; the temperature of the first solvent is 30°C to 60°C, specifically, but not limited to, 30°C, 35°C, 40°C, 45°C, 50°C, 55°C or 60°C.

[0066] Furthermore, the mass ratio of the plant starch to the first solvent is 1:(1-6); the mass ratio of the plant starch to the first solvent affects the consistency of the first emulsion, and thus affects the adhesion effect of the film liquid on the substrate. Experiments have shown that the mass ratio of 1:(1-6) is a relatively good range. Specifically, the mass ratio of the plant starch to the first solvent can be, but is not limited to, 1:1, 1:2, 1:3, 1:4, 1:5 or 1:6.

[0067] Step S12: prepare a second emulsion. According to the mass fraction, the mass ratio is (10 -4 ~10 -1 ) : 1: (50~100) of pH regulator, pre-chemical agent and the second solvent are mixed to prepare a second emulsion.

[0068] The pH regulator includes one or both of a sodium hydroxide aqueous solution and a calcium carbonate aqueous solution.

[0069] Preferably, the pH adjuster is a sodium hydroxide aqueous solution with a mass percentage of (1%-6%).

[0070] Wherein, the pre-treatment agent includes phosphatidylcholine. It can be understood that the pre-treatment agent can be phosphatidylcholine or one or both of soybean lecithin and egg yolk lecithin whose composition includes phosphatidylcholine.

[0071] The material of the second solvent may be water; the temperature of the second solvent is 30°C to 60°C, specifically, but not limited to, 30°C, 35°C, 40°C, 45°C, 50°C, 55°C or 60°C.

[0072] The pH value of the prepared second emulsion is 8.5 to 10. Specifically, the pH value of the second emulsion can be, but is not limited to, 8.5, 9, 9.5 or 10.

[0073] Preferably, the mass percentage of the pre-curing agent in the second emulsion is 1% to 2%.

[0074] Step S13: Select the first emulsion and the second emulsion in a mass ratio of (1-4): (1-3) and mix them evenly to prepare a membrane solution.

[0075] Wherein, the mixing temperature is controlled at 70 ℃ ~ 90 ℃; preferably 80 ℃;

[0076] After the mixture is evenly stirred, the process further comprises step S131: cooling the mixture evenly stirred solution by 40°C to 50°C, preferably to 45°C.

[0077] In other preferred embodiments, the step S11 of preparing the first emulsion further includes:

[0078] Step S110: sieving the plant starch, the mesh size of the sieving is 50-300 mesh; specifically, it can be 50 mesh, 100 mesh, 200 mesh or 300 mesh; or

[0079] Step S111: 80 to 200 parts of plant starch are selected, and the mixture is placed in a certain amount of a first solvent and mixed and stirred until emulsified to prepare a plant starch emulsion; wherein the mass ratio of the plant starch to the first solvent is 1:(1-6);

[0080] Step S112: Add 0.5 to 3 parts of a thickener and 0.5 to 15 parts of a stabilizer to the above-mentioned plant starch emulsion, stir and preheat to a first temperature to prepare a first emulsion.

[0081] The first temperature is 70°C to 90°C. Specifically, the first temperature may be, but is not limited to, 70°C, 75°C, 80°C, 85°C or 90°C.

[0082] In this step, a thickener and a stabilizer are added to the above-mentioned plant starch emulsion, stirred and heated to a first temperature, the purpose of which is to increase the stability of the solution and the tensile coefficient of the film paper, improve its toughness, and allow it to have a certain degree of ductility and not break during the subsequent packaging of the oral matrix material.

[0083] In other preferred embodiments, the step S12 of preparing the second emulsion further includes:

[0084] Step S121: preparing a pH adjusting agent solution and heating it to a second temperature;

[0085] Wherein, the pH adjusting agent solution is a sodium hydroxide aqueous solution with a mass percentage (1% to 6%);

[0086] The second temperature is 80°C to 100°C. Specifically, the second temperature may be, but is not limited to, 80°C, 85°C, 90°C, 95°C or 100°C.

[0087] Step S122: adding a pre-solvent and a second solvent to the solution heated to the second temperature in step S121, stirring until the pre-solvent is completely dissolved; and cooling to 30° C. to 40° C. to prepare a second emulsion.

[0088] Wherein, the mass ratio of pH adjusting agent, pre-treatment agent and second solvent is (10 -4 ~10 -1 ): 1: ( 50~100).

[0089] Among them, the pre-treatment agent is preferably phosphatidylcholine, and the solvent is water.

[0090] Wherein, the pH of the prepared second emulsion is 8.5-10.

[0091] Among them, the mass percentage of the pre-chemical agent in the second emulsion is 1% to 2%; specifically, the mass percentage of the pre-chemical agent in the second emulsion can be but is not limited to 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, 1.6%, 1.7%, 1.8%, 1.9% or 2%.

[0092] Preferably, after step S122, step S123 is further included: sieving the solution in step S122, the mesh size of the sieving is 50-200 mesh; specifically, it can be 50 mesh, 100 mesh, 150 mesh, 200 mesh; preferably 100 mesh.

[0093] In a specific embodiment, step S2 includes: using a brush to dip the obtained film liquid, gently rubbing it back and forth evenly on one side of the substrate non-woven fabric, and then using microwave drying to obtain a film paper containing elasticity on the inner side of the non-woven fabric.

[0094] The present application also provides a nicotine bag, including a nicotine bag matrix and a composite film wrapping the nicotine bag matrix; the composite film includes a laminated base film and the above-mentioned film paper, and the film paper is arranged between the base film and the nicotine bag matrix.

[0095] Further, the nicotine bag matrix includes nicotine; further, the base film can be but is not limited to non-woven fabric.

[0096] The nicotine bag matrix comprises, by mass, 1 to 6 parts of nicotine salt, 25 to 55 parts of filler, 1 to 6 parts of sweetener, 0.1 to 0.8 parts of cooling agent, 0.1 to 1 part of dispersant, 1 to 5 parts of pH adjuster, 1 to 5 parts of propylene glycol, and 30 to 40 parts of deionized water.

[0097] In a specific example, the thickness of the membrane paper is 0.02 mm to 0.04 mm. Specifically, the thickness of the membrane paper can be, but is not limited to, 0.02 mm, 0.025 mm, 0.03 mm, 0.035 mm or 0.04 mm.

[0098] The present application also provides a method for preparing a nicotine bag, comprising the following steps:

[0099] A1: prepare the above membrane solution;

[0100] A2: coating the above film solution on a substrate and drying it to prepare a nicotine bag film paper;

[0101] Wherein, the substrate is non-woven fabric.

[0102] A3, roll up the above nicotine bag film and seal it with a heat sealer. (The shape can generally be filled with nicotine bag matrix)

[0103] A4: Add nicotine bag matrix material to the nicotine film paper sealed in step A3 to prepare a nicotine bag.

[0104] The present application is further described in detail below in conjunction with specific examples. It should be understood that these examples are only used to illustrate the present application and are not intended to limit the scope of the present application. The experimental methods for which specific conditions are not specified in the following examples are preferably referred to the guidance given in the present application, and can also be based on the experimental manuals or conventional conditions in the art, can also be based on the conditions recommended by the manufacturer, or refer to experimental methods known in the art.

[0105] In the following specific embodiments, the measured parameters of raw material components may have slight deviations within the range of weighing accuracy unless otherwise specified. For temperature and time parameters, acceptable deviations caused by instrument test accuracy or operation accuracy are allowed. "Normal temperature" refers to 25°C; "normal pressure" refers to 100KPa or 101KPa.

[0106] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The wheat starch used in the following examples and comparative examples was purchased from Baoding Tianyu; soybean lecithin was purchased from Kangzhitai; hydroxypropyl distarch phosphate was purchased from Jiahe Xuri; gelatin was purchased from Jiahe Xuri; and corn starch was purchased from Haitian.

[0108] Example 1

[0109] The method for preparing the membrane paper provided in this embodiment includes the following steps S1 and S2:

[0110] Step S1: preparing a membrane solution, including the following steps S11 to S13.

[0111] Step S11: Pass the wheat starch through a 100-mesh sieve, add 300 g of warm water at 45°C and stir continuously until it is emulsified, wherein the mass of the added water is twice the mass of 150 g of the sieved wheat starch, add 4.5 g of hydroxypropyl distarch phosphate and 1 g of gelatin to the above 450 g of plant starch emulsion, stir and preheat to 85°C to prepare the first emulsion.

[0112] Step S12: Prepare a sodium hydroxide aqueous solution with a mass percentage of 1%, heat it to 90°C, add 3g of phosphatidylcholine while stirring, so that the mass of 0.06g of the sodium hydroxide aqueous solution with a mass percentage of 1% is 2% of the mass of phosphatidylcholine, and then add 196.94g of water to obtain 200g of phosphatidylcholine emulsion with a mass percentage of 1.5%. After all the phosphatidylcholine is dissolved in the above sodium hydroxide solution, let it cool naturally to 35°C, pass through a 100-mesh sieve, and the pH value of the prepared phosphatidylcholine emulsion is 8.5-10, and the second emulsion is prepared.

[0113] Step S13: Mix the first emulsion and the second emulsion, mix them completely, control the temperature to maintain at 80° C. and stir continuously, and after mixing evenly, control the temperature to 45° C. to prepare a membrane liquid.

[0114] Step S2: preparing film paper; dip the obtained film liquid with a brush, gently rub it back and forth evenly on one side of the substrate non-woven fabric, and then use microwave drying to obtain a film paper containing elasticity on the inside of the non-woven fabric. The film paper is translucent in color, tasteless, and has a thickness of about 0.03mm.

[0115] The composite film of the composite substrate non-woven fabric and the film paper is rolled up and sealed with a heat sealer. The shape is generally such that the nicotine bag matrix material can be poured in, so that the composite film covers the nicotine bag matrix, and a nicotine bag is made in which the film paper is arranged between the non-woven fabric and the nicotine bag matrix.

[0116] Example 2

[0117] The method for preparing the membrane paper provided in this embodiment includes the following steps S1 and S2:

[0118] Step S1: preparing a membrane solution, including the following steps S11 to S13.

[0119] Step S11: pass the wheat starch through a 100-mesh sieve, add 450 g of warm water at 45° C. and stir continuously until it is emulsified, wherein the mass of the added water is 3 times the mass of 150 g of the sieved wheat starch, add 6 g of hydroxypropyl distarch phosphate (HPDSP) and 1 g of gelatin to the above 600 g of the plant starch emulsion, stir and preheat to 85° C. to prepare a first emulsion.

[0120] Step S12: Prepare a 2% sodium hydroxide aqueous solution by mass, heat it to 90°C, add 3g of phosphatidylcholine while stirring, so that the addition amount of 0.06g of the 2% sodium hydroxide aqueous solution by mass percentage is 2% of the mass of phosphatidylcholine, and then add 196.94g of water to obtain 200g of phosphatidylcholine emulsion with a mass percentage of 1.5%. After all the phosphatidylcholine is dissolved in the above sodium hydroxide solution, let it cool naturally to 35°C, pass through a 100-mesh sieve, and the pH value of the prepared phosphatidylcholine emulsion is 8.5-10, and the second emulsion is prepared.

[0121] Step S13: Mix the first emulsion and the second emulsion, mix them completely, control the temperature to maintain at 80° C. and stir continuously, and after mixing evenly, control the temperature to 45° C. to prepare a membrane liquid.

[0122] Step S2: preparing film paper; dip the obtained film liquid with a brush, gently rub it back and forth evenly on one side of the substrate non-woven fabric, and then use microwave drying to obtain a film paper containing elasticity on the inside of the non-woven fabric. The film paper is translucent in color, tasteless, and has a thickness of about 0.03mm.

[0123] The composite film of the composite substrate non-woven fabric and the film paper is rolled up and sealed with a heat sealer. The shape is generally such that the nicotine bag matrix material can be poured in, so that the composite film covers the nicotine bag matrix, and a nicotine bag is made in which the film paper is arranged between the non-woven fabric and the nicotine bag matrix.

[0124] Example 3

[0125] The method for preparing the membrane paper provided in this embodiment includes the following steps S1 and S2:

[0126] Step S1: preparing a membrane solution, including the following steps S11 to S13.

[0127] Step S11: pass the corn starch through a 100-mesh sieve, add 450 g of warm water at 45° C. and stir continuously until it is emulsified, wherein the mass of the added water is 3 times the mass of 150 g of the sieved corn starch, add 6 g of hydroxypropyl distarch phosphate (HPDSP) and 1 g of gelatin to the above 600 g of the plant starch emulsion, stir and preheat to 85° C. to prepare a first emulsion.

[0128] Step S12: Prepare an aqueous solution of 3% sodium hydroxide by mass, heat it to 90°C, add 3g of phosphatidylcholine while stirring, so that the mass of 0.06g of the 3% sodium hydroxide solution is 2% of the mass of phosphatidylcholine, and then add 196.94g of water to obtain 200g of phosphatidylcholine emulsion with a mass percentage of 1.5%. After all the phosphatidylcholine is dissolved in the above sodium hydroxide solution, let it cool naturally to 35°C, pass through a 100-mesh sieve, and the pH value of the prepared phosphatidylcholine emulsion is 8.5-10, to prepare the second emulsion.

[0129] Step S13: Mix the first emulsion and the second emulsion, mix them completely, control the temperature to maintain at 80° C. and stir continuously, and after mixing evenly, control the temperature to 45° C. to prepare a membrane liquid.

[0130] Step S2: preparing film paper; dip the obtained film liquid with a brush, gently rub it back and forth evenly on one side of the substrate non-woven fabric, and then use microwave drying to obtain a film paper containing elasticity on the inside of the non-woven fabric. The film paper is translucent in color, tasteless, and has a thickness of about 0.03mm.

[0131] The composite film of the composite substrate non-woven fabric and the film paper is rolled up and sealed with a heat sealer. The shape is generally such that the nicotine bag matrix material can be poured in, so that the composite film covers the nicotine bag matrix, and a nicotine bag is made in which the film paper is arranged between the non-woven fabric and the nicotine bag matrix.

[0132] Example 4

[0133] The method for preparing the membrane paper provided in this embodiment includes the following steps S1 and S2:

[0134] Step S1: preparing a membrane solution, including the following steps S11 to S13.

[0135] Step S11: pass corn starch through a 100-mesh sieve, add 600 g of warm water at 45°C and stir continuously until it is emulsified, wherein the mass of the added water is 4 times the mass of 150 g of the sieved corn starch, add 7.5 g of hydroxypropyl distarch phosphate (HPDSP) and 1 g of gelatin to the above 750 g of the emulsion, stir and preheat to 85°C to prepare the first emulsion.

[0136] Step S12: Prepare a 3% sodium hydroxide aqueous solution, heat it to 90°C, add 3g of phosphatidylcholine while stirring, so that the mass of 0.06g of the 3% sodium hydroxide aqueous solution is 2% of the mass of phosphatidylcholine, and then add 196.94g of water to obtain 200g of phosphatidylcholine emulsion with a mass percentage of 1.5%. After all the phosphatidylcholine is dissolved in the alkaline solution, let it cool naturally to 35°C, pass through a 100-mesh sieve, and the pH value of the prepared phosphatidylcholine emulsion is 8.5-10, to prepare the second emulsion.

[0137] Step S13: Mix the first emulsion and the second emulsion, mix them completely, control the temperature to maintain at 80° C. and stir continuously, and after mixing evenly, control the temperature to 45° C. to prepare a membrane liquid.

[0138] Step S2: preparing film paper; dip the obtained film liquid with a brush, gently rub it back and forth evenly on one side of the substrate non-woven fabric, and then use microwave drying to obtain a film paper containing elasticity on the inside of the non-woven fabric. The film paper is translucent in color, tasteless, and has a thickness of about 0.03mm.

[0139] The composite film of the composite substrate non-woven fabric and the film paper is rolled up and sealed with a heat sealer. The shape is generally such that the nicotine bag matrix material can be poured in, so that the composite film covers the nicotine bag matrix, and a nicotine bag in which the film paper is arranged between the non-woven fabric and the nicotine bag matrix is ​​manufactured. Example 5

[0140] The method for preparing the membrane paper provided in this embodiment includes the following steps S1 and S2:

[0141] Step S1: preparing a membrane solution, including the following steps S11 to S13.

[0142] Step S11: After corn starch and barley starch are sieved through a 100-mesh sieve respectively, the mixture is added into 600 g of warm water at 45°C in a mass ratio of 1:1 and stirred continuously until emulsified, wherein the mass of the added water is 4 times the mass of 150 g of the sieved plant starch. To the above 750 g of the plant starch emulsion, 7.5 g of hydroxypropyl distarch phosphate (HPDSP) and 1 g of gelatin are added, stirred and preheated to 85°C to prepare a first emulsion.

[0143] Step S12: Prepare a 3% sodium hydroxide aqueous solution, heat it to 90°C, add an appropriate amount of phosphatidylcholine while stirring, so that the mass of 0.06g of the 3% sodium hydroxide aqueous solution is 2% of the mass of 3g of phosphatidylcholine, and then add 196.94g of water to obtain 200g of phosphatidylcholine emulsion with a mass percentage of 1.5%. After all the phosphatidylcholine is dissolved in the alkaline solution, let it cool naturally to 35°C, pass through a 100-mesh sieve, and the pH value of the prepared phosphatidylcholine emulsion is 8.5-10, to prepare the second emulsion.

[0144] Step S13: Mix the first emulsion and the second emulsion, mix them completely, control the temperature to maintain at 80° C. and stir continuously, and after mixing evenly, control the temperature to 45° C. to prepare a membrane liquid.

[0145] Step S2: preparing film paper; dip the obtained film liquid with a brush, gently rub it back and forth evenly on one side of the substrate non-woven fabric, and then use microwave drying to obtain a film paper containing elasticity on the inside of the non-woven fabric. The film paper is translucent in color, tasteless, and has a thickness of about 0.03mm.

[0146] The composite film of the composite substrate non-woven fabric and the film paper is rolled up and sealed with a heat sealer. The shape is generally such that the nicotine bag matrix material can be poured in, so that the composite film covers the nicotine bag matrix, and a nicotine bag is made in which the film paper is arranged between the non-woven fabric and the nicotine bag matrix.

[0147] Example 6

[0148] The difference from Example 1 is that the stabilizer hydroxypropyl distarch phosphate is replaced by sucrose fatty acid ester.

[0149] Example 7

[0150] The difference from Example 1 is that the pre-treatment agent phosphatidylcholine is replaced by soybean lecithin.

[0151] Example 8

[0152] The difference from Example 1 is that the thickener gelatin is replaced by guar gum.

[0153] The nicotine bag matrix in the above embodiments comprises, by mass, 1 to 6 parts of nicotine salt, 25 to 55 parts of filler, 1 to 6 parts of sweetener, 0.1 to 0.8 parts of cooling agent, 0.1 to 1 part of dispersant, 1 to 5 parts of pH regulator, 1 to 5 parts of propylene glycol, and 30 to 40 parts of deionized water. The composition of the nicotine bag matrix in each embodiment is the same.

[0154] Comparative Example 1

[0155] The difference between the ZYN oral cigarette and the above-mentioned embodiment is that it does not contain a nicotine bag of film paper.

[0156] Detection method and result analysis

[0157] 1. Sustained release

[0158] The nicotine bags prepared in Examples 1-8 and Comparative Example 1 were placed in 100 ml of phosphate buffer with a pH value of 8.1. Samples were taken every minute from the beginning of the addition of the solution until 15 minutes had passed. The data were used as Figure 1 The form reflects the relationship between its sustained release and time.

[0159] From above Figure 1 It can be seen that Examples 1-7 containing laminated non-woven fabrics and film papers have uniform and long-lasting sustained release, which can not only continuously release flavor and aroma during consumption, but also provide users with a sense of satisfaction through the sustained release of nicotine; Example 8 has a too slow sustained release because the film paper is partially too thick; Comparative Example 1 releases nicotine at a high speed in the early stage, and then slowly and completely releases nicotine after 4 minutes, which may result in excessive strength in the early stage and insufficient after-effect, and is very irritating to the oral cavity.

[0160] 2. Tasting test and release test

[0161] The evaluation method is to place the nicotine bag between the inner side of the lower lip and the lower gum in the mouth. Each nicotine bag placed in the lip is a small bag with a mass of 0.3g. The standard consumption time is set at 15 minutes.

[0162] The scoring standard is: good, average, poor, and bad. Note: the difference in strength before and after oral administration (small difference is good), mucosal irritation (small irritation is good), powder leakage (no leakage is good), whether there is odor (no is good), film thickness (thick, moderate, thin / cracked), dryness (dryness of the film, too wet and too sticky is poor). The specific test results are shown in Table 1 below.

[0163] Table 1

[0164]

[0165] It can also be seen from the evaluation results in Table 1 that the composite film containing laminated film paper and non-woven fabric wrapped nicotine bag matrix has a small difference in strength before and after the sustained release of nicotine, and the irritation to the oral mucosa is not so high, which can allow users to get nicotine intake satisfaction when eating and protect the oral environment and intestinal health. In addition, for flavor and fragrance, the nicotine bag wrapped with a composite film containing laminated film paper and non-woven fabric is also more persistent. Release, to a certain extent, can reduce the fading of aroma and flavor in the later stage of consumption. For powdered nicotine bags on the market, powder leakage is a common problem. The film paper for sustained release of nicotine provided in this application can make its gaps tighter when processing non-woven fabrics to prevent powder leakage, thereby ensuring its factory quality. On the other hand, the performance of the comparative example shows that the aroma and flavor fade seriously in the later stage, and there is also powder leakage. The most important thing is that nicotine is released too quickly, causing discomfort.

[0166] Although Examples 1 and 6-8 also achieve sustained-release effects, in terms of the cost and quality of the membrane paper, Examples 6-7 are not as stable as Examples 1-5 and have higher costs. In addition, they crack in the later stage and have an unsmooth texture, which is not very friendly to the sensory experience. On the contrary, Example 8 has the problem of uneven coating due to the excessive viscosity of the prepared membrane liquid. The membrane paper formed after coating has the problem of being too thick in some areas, which affects the delivery of flavor and aroma.

[0167] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as limiting the scope of protection of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the protection scope of the claims attached to the present application. Therefore, the protection scope of the patent of this application shall be based on the contents of the attached claims, and the description and drawings can be used to explain the contents of the claims.

Claims

1. A film paper, characterized in that: The composition includes 80 to 200 parts of plant starch, 1 to 10 parts of pre-curing agent, 0.5 to 3 parts of thickener and 0.5 to 15 parts of stabilizer in parts by weight; The stabilizer includes one or more of hydroxypropyl distarch phosphate, sucrose fatty acid ester, β-cyclodextrin, maltodextrin and sodium carboxymethyl cellulose.

2. The film paper according to claim 1, characterized in that: It also includes 0.0001 to 5 parts of a pH adjuster.

3. The membrane paper according to claim 2, characterized in that: The thickness of the membrane paper is 0.02 mm to 0.04 mm.

4. The film paper according to any one of claims 1 to 3, characterized in that: One or more of the following conditions are met: (1) The plant starch includes one or more of corn starch, mung bean starch, cassava starch, sweet potato starch, potato starch, wheat starch, water chestnut starch and lotus root starch; (2) The pre-treatment agent includes phosphatidylcholine; (3) The thickener includes one or more of pectin, alginate, gelatin, konjac gum, guar gum and carrageenan.

5. A method for preparing a film paper, characterized in that: The following steps are involved: Step S1: preparing membrane solution; Step S2: coating the membrane liquid on a substrate, drying, and preparing membrane paper; The membrane liquid comprises, by weight, 80 to 200 parts of plant starch, 1 to 10 parts of a pre-curing agent, 0.5 to 3 parts of a thickener, and 0.5 to 15 parts of a stabilizer.

6. The preparation method according to claim 5, characterized in that: The step S1 comprises: Step S11: selecting 80 to 200 parts of the plant starch, 0.5 to 3 parts of the thickener, and 0.5 to 15 parts of the stabilizer by weight, and mixing them with the first solvent to prepare a first emulsion; Step S12: According to the mass fraction, select the mass ratio as (10 -4 ~10 -1 ) : 1: (50-100) pH adjusting agent, the pre-chemical agent and the second solvent are mixed to prepare a second emulsion; Step S13: uniformly mixing the first emulsion and the second emulsion to prepare the membrane solution, wherein the mass ratio of the first emulsion to the second emulsion is (1-4): (1-3).

7. The preparation method according to claim 6, characterized in that: The step S11 further includes: Step S111: selecting 80 to 200 parts of the plant starch, placing them in the first solvent, mixing and stirring until emulsified to prepare a plant starch emulsion; wherein the mass ratio of the plant starch to the first solvent is 1:(1-6); Step S112: adding 0.5 to 3 parts of a thickener and 0.5 to 15 parts of a stabilizer to the plant starch emulsion, stirring and preheating to a first temperature to prepare the first emulsion.

8. The preparation method according to claim 6, characterized in that: The step S12 further includes: Step S121: heating the pH adjuster to a second temperature; Step S122: adding the pre-curing agent and the second solvent to the pH adjusting agent heated to the second temperature, stirring until the pre-curing agent is completely dissolved; and cooling to 30° C. to 40° C. to prepare the second emulsion.

9. A nicotine bag, characterized in that: It comprises a nicotine bag matrix and a composite film wrapping the nicotine bag matrix; the composite film comprises a laminated base film and the film paper according to any one of claims 1 to 4, and the film paper is arranged between the base film and the nicotine bag matrix.

10. The nicotine bag according to claim 9, characterized in that The thickness of the membrane paper is 0.02 mm to 0.04 mm.

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