CN109161211B - A kind of preparation method of explosive bead wrapping material for cigarette - Google Patents

Abstract

The invention relates to a preparation method of a cigarette explosive bead wrapping material, and belongs to the technical field of cigarette materials. In the present invention, nano-silicon dioxide and ethylene-vinyl acetate copolymerized hot melt adhesive are mixed, and polyvinyl pyrrolidone is used as a dispersant to obtain a mixed sol as an auxiliary agent for preparing a wrapping material. The starch is blended, and the adjuvant is added to prepare the packaging material for cigarette explosive beads, and the blending method can improve the characteristics of the single gelatin film such as softness, thermal instability, and easy water absorption; the addition of starch in the present invention makes the packaging material pop The modulus and elastic strength increase. The addition of glycerin increases the elongation of the wrapping material and reduces the brittleness. It will not break due to friction and extrusion. Stearic acid acts as a heat stabilizer, which makes the weather resistance of the wrapping material obvious. improvement.

Description

A kind of preparation method of explosive bead wrapping material for cigarette

technical field

The invention relates to a preparation method of a cigarette explosive bead wrapping material, and belongs to the technical field of cigarette materials.

Background technique

Explosive beads, also known as flavored drop pills, brittle capsules, etc., refer to a small liquid plastic bead embedded in the cigarette filter in the form of a capsule. It is squeezed and broken by hand, so that the aroma liquid in the beads flows out, and the aroma components are released under the action of mainstream smoke of cigarettes. The application of popping beads in cigarette filter rods realizes the adjustment of cigarette smoking taste, and the effect of increasing aroma and moisturizing is obvious, which can satisfy consumers who pursue the individual aroma of cigarettes, and obtain comfort, sweetness, and rejuvenation. Pleasant smoking experience; the popping beads also have powerful visual outputs such as sound and transparency, giving cigarettes the function of playing as one. In recent years, many domestic tobacco companies have developed and manufactured pop-bead cigarettes, and have achieved certain results in breaking through the key technical barriers of pop-bead. Combined with the actual production situation, in the use of the prior art, the use of the dripping method to produce explosive beads has the following defects: the dripping pellets are easily rubbed and squeezed during the drying, screening and filter rod embedding processes after molding, and the cracking phenomenon occurs, and the soft The oily fragrance in the capsule is easy to ooze out, and there is adhesion between the dripping pills. After a period of storage, the brittleness of the dripping pills decreases, and occasionally fogging occurs. When the dripping pills are broken by hand, it is difficult to hear "pop" The crisp sound will seriously affect the appearance quality and practical application effect of dripping pills. This may be due to the thin thickness of the rubber, the unstable moisture content, and the deterioration of the rubber matrix.

The wall material of soft capsules prepared by traditional technology is mostly gelatin, which is mainly extracted from the skin and bones of some animals. Gelatin is a mixture of water-soluble proteins that are partially denatured products of collagen. Because gelatin comes from natural products, and because of its glossy appearance, ability to bear dyes, and convenient operation, as a good drug outer layer material, it is widely used in solid dosage forms in medicine, including hard and soft gelatin capsules and gelatin. Coated tablet. However, the direct use of gelatin is limited due to its low strength, high brittleness, easy water absorption and swelling, and low strength and elastic modulus after swelling. Therefore, in order to solve the problem of gelatin soft capsules, it is urgent to develop a high-performance packaging material for cigarette explosive beads to improve the problem of poor consumer experience.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention: aiming at the problems that the existing explosive beads have poor weather resistance, are easily subjected to friction, and are prone to rupture when squeezed, a preparation method of a cigarette explosive bead wrapping material is provided.

In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

(1) Mix polyvinylpyrrolidone, nano-silica powder and liquid sol, ultrasonically disperse for 20-40 minutes, and magnetically stir to obtain a mixed sol;

(2) In parts by weight, weigh 20 to 28 parts of gelatin, 10 to 16 parts of starch, 1 to 6 parts of mixed sol, 3 to 8 parts of soybean protein, 2 to 5 parts of stearic acid, and 1 to 3 parts of stearic acid. Glycerol, 30-60 parts of deionized water, mix gelatin, deionized water and soybean protein, heat treatment to obtain a mixed solution, add starch, stir to obtain a blended solution, add mixed sol, stearic acid and glycerin in sequence, Magnetic stirring and standing, and sieving under heat preservation state, the obtained filtrate is the packaging material of explosive beads for cigarettes.

The liquid sol described in step (1) is an ethylene-vinyl acetate copolymerized hot-melt adhesive heated at a temperature of 70-80° C. for 30-40 minutes.

The polyvinylpyrrolidone, nano-silica powder and liquid sol described in step (1) are mixed in a mass ratio of 1:5:12.

The magnetic stirring in the step (1) is 1 to 2 hours at a stirring speed of 100 to 160 r/min.

The heating and stirring treatment in step (2) is to mix gelatin and deionized water, heat and stir at 50-60 °C for 20-30 min to obtain a gelatin solution, add soybean protein, and heat and stir in a water bath for 30-40 min at 70-80 °C .

The stirring treatment in step (2) is that after stirring for 20-30 minutes at a rotational speed of 200-300 r/min, the stirring is continued for 20-30 minutes at a rotational speed of 1000-3000 r/min.

The magnetic stirring described in the step (2) and standing is magnetic stirring for 30-50 min at a water bath temperature of 70-80° C., and standing for 3-6 hours.

The step (2) is to pass through a 60-100 mesh screen in a heat-retaining state.

Compared with other methods, the present invention has the following beneficial technical effects:

(1) In the present invention, nano-silicon dioxide and ethylene-vinyl acetate copolymerized hot melt adhesive are mixed, and polyvinylpyrrolidone is used as a dispersant to obtain a mixed sol as an auxiliary agent for preparing packaging materials. The starch is blended, and the adjuvant is added to prepare the explosive bead wrapping material for cigarettes. The blending method can improve the characteristics of a single gelatin film, such as softness, thermal instability, and easy water absorption. Starch is a natural organic matter, which has a good Biocompatibility; the siltation effect of nanoparticles can be evenly embedded in the wrapping material, thereby enhancing the compactness and barrier properties of the wrapping material, and nano-silica has certain bacteriostatic properties, which can better inhibit some bacteria The activity of the nano-silica particles is added to the packaging material to a large extent, which enhances the mechanical properties, moisture permeability and oxygen permeability of the original packaging material, and makes the packaging material more dense;

(2) The addition of starch in the present invention increases the Young's modulus and elastic strength of the wrapping material, and the addition of glycerin increases the elongation rate of the wrapping material, reduces the brittleness, and will not rupture due to friction and extrusion. The acid acts as a heat stabilizer, which significantly improves the weather resistance of the wrapping material.

Detailed ways

The ethylene-vinyl acetate copolymerized hot-melt adhesive is heated at a temperature of 70 to 80° C. for 30 to 40 minutes to obtain a liquid sol, and the polyvinylpyrrolidone, nano-silica powder and the liquid sol are mixed in a mass ratio of 1:5:12, Ultrasonic dispersion for 20-40min, and magnetic stirring for 1-2h at a stirring speed of 100-160r/min to obtain a mixed sol; in parts by weight, weigh 20-28 parts of gelatin, 10-16 parts of starch, 1- 6 parts of mixed sol, 3 to 8 parts of soybean protein, 2 to 5 parts of stearic acid, 1 to 3 parts of glycerin, 30 to 60 parts of deionized water, mix gelatin and deionized water, and heat and stir at 50 to 60°C 20～30min, get gelatin solution, add soybean protein, heat and stir in water bath at 70～80℃ for 30～40min, get mixed solution, add starch, after stirring for 20～30min at the speed of 200～300r/min, adjust the speed to Continue stirring for 20-30 min at 1000-3000 r/min to obtain a blended solution, add mixed sol, stearic acid and glycerin in sequence, stir magnetically for 30-50 min at a water bath temperature of 70-80 °C, let stand for 3-6 h, and keep warm The filtrate is passed through a 60-100-mesh sieve in the state, and the obtained filtrate is a packaging material of explosive beads for cigarettes.

Example 1

The ethylene-vinyl acetate copolymerized hot-melt adhesive was heated at a temperature of 70° C. for 30 minutes to obtain a liquid sol. The polyvinylpyrrolidone, nano-silica powder and the liquid sol were mixed in a mass ratio of 1:5:12, and ultrasonically dispersed for 20 minutes. And magnetic stirring for 1h at a stirring speed of 100r/min to obtain a mixed sol; in parts by weight, weigh 20 parts of gelatin, 10 parts of starch, 1 part of mixed sol, 3 parts of soybean protein, 2 parts of stearic acid, 1 part glycerol, 30 parts deionized water, mix gelatin and deionized water, heat and stir at 50°C for 20min to obtain a gelatin solution, add soybean protein, heat and stir in a water bath at 70°C for 30min to obtain a mixed solution, add starch, After stirring for 20 minutes at a rotational speed of 200 r/min, the stirring was continued for 20 minutes at a rotational speed of 1000 r/min to obtain a blended solution, followed by adding the mixed sol, stearic acid and glycerin, magnetically stirring for 30 minutes at a water bath temperature of 70 °C, and leaving it to stand. 3h, pass through a 60-mesh sieve in an insulating state, and the obtained filtrate is a packaging material of explosive beads for cigarettes.

Example 2

The ethylene-vinyl acetate copolymerized hot-melt adhesive was heated at a temperature of 75° C. for 35 minutes to obtain a liquid sol. The polyvinylpyrrolidone, nano-silica powder and the liquid sol were mixed in a mass ratio of 1:5:12, and ultrasonically dispersed for 30 minutes. And magnetic stirring for 1.5h at a stirring speed of 130r/min to obtain a mixed sol; in parts by weight, weigh 24 parts of gelatin, 13 parts of starch, 4 parts of mixed sol, 5 parts of soybean protein, and 3 parts of stearic acid. , 2 parts of glycerol, 45 parts of deionized water, mix gelatin and deionized water, heat and stir at 55°C for 25min to obtain a gelatin solution, add soybean protein, heat and stir in a water bath for 35min at 75°C to obtain a mixed solution, add starch , after stirring for 25 minutes at a rotating speed of 250 r/min, adjusting the rotating speed to 2000 r/min and continuing to stir for 25 minutes to obtain a mixed solution, followed by adding mixed sol, stearic acid and glycerin, magnetic stirring for 40 minutes at a water bath temperature of 75 ° C, and static Set for 5h, pass through an 80-mesh sieve in an insulating state, and the obtained filtrate is a wrapping material of explosive beads for cigarettes.

Example 3

The ethylene-vinyl acetate copolymerized hot-melt adhesive was heated at a temperature of 80° C. for 40 minutes to obtain a liquid sol. The polyvinylpyrrolidone, nano-silica powder and the liquid sol were mixed in a mass ratio of 1:5:12, and ultrasonically dispersed for 40 minutes. And magnetic stirring for 2h at a stirring speed of 160r/min to obtain a mixed sol; in parts by weight, weigh 28 parts of gelatin, 16 parts of starch, 6 parts of mixed sol, 8 parts of soybean protein, 5 parts of stearic acid, 3 parts of glycerol, 60 parts of deionized water, mix gelatin and deionized water, heat and stir at 60°C for 30min to obtain a gelatin solution, add soybean protein, heat and stir in a water bath at 80°C for 40min to obtain a mixed solution, add starch, After stirring for 30min at a rotating speed of 300r/min, adjust the rotating speed to 3000r/min and continue stirring for 30min to obtain a blended solution. Add the mixed sol, stearic acid and glycerin in sequence, stir magnetically for 50min at a water bath temperature of 80°C, and let stand. For 6h, pass through a 100-mesh sieve in an insulating state, and the obtained filtrate is a wrapping material of explosive beads for cigarettes.

The cigarette explosive bead wrapping material prepared by the present invention and the commercially available explosive bead wrapping material are detected, and the specific detection results are as follows in Table 1 and Table 2:

Detection method:

Utilize the HR73/HG53 moisture detector to detect the moisture content of the explosive beads wrapping material in the above-mentioned embodiment, the drying temperature is 105 ° C, the heating mode is gentle heating, and the heating time is 1: 20min. The dripping beads were soaked for 48 hours at a temperature of 20 ± 2 °C and a relative humidity of 85% to 95%.

Use the DPYD-A dropping pill tablet hardness tester to detect the hardness of the explosive beads in the above-mentioned embodiment, place the explosive beads in the middle of the sample tray of the hardness tester, and close to the fixed baffle plate, and turn on the tester switch. , the push rod advances at a fixed speed of 1mm/s, squeezes the explosive beads, and records the push rod pressure when the explosive beads break, that is, the hardness. The test results are shown in Table 1:

In the embodiment of table 1, the moisture content and hardness test results before and after the moisture absorption of the explosive beads

Test 2: Damp heat aging test of explosive beads

The explosive beads dripped in each example were subjected to a humid heat aging cycle test in a high and low temperature humid heat aging box, the cycle time was 48h, the appearance of the explosive beads was observed and the hardness of the explosive beads after moisture absorption was detected.

The experimental conditions are as follows:

(1) Low temperature conditions: -20℃×12h 20℃×12h

(2) High temperature conditions: 22℃×12h 40℃×12h

The relative humidity is maintained at (93±3)% at the above-mentioned higher temperature, and the rest time in the cycle is not less than 95%. The results of the cycle experiment are shown in Table 2:

In the implementation of table 2, the explosive beads are subjected to a moist heat aging cycle test in a high and low temperature moist heat aging box

Table 1 Performance characterization of explosive beads wrapping materials

Table 2 Characterization of the anti-humidity and heat aging properties of the explosive bead wrapping materials

It can be seen from Table 1 that the explosive beads wrapping material for cigarettes prepared by the present invention has a reduced equilibrium moisture content of the explosive beads, improved moisture absorption performance of the explosive beads, strong adaptability of the explosive beads to ambient temperature, and good weather resistance.

Claims (7)

1. A preparation method of a bead blasting wrapping material for cigarettes is characterized by comprising the following specific preparation steps:

(1) heating ethylene-vinyl acetate copolymerized hot melt adhesive at the temperature of 70-80 ℃ for 30-40 min to obtain liquid sol, mixing polyvinylpyrrolidone, nano silicon dioxide powder and the liquid sol, performing ultrasonic dispersion for 20-40 min, and performing magnetic stirring to obtain mixed sol;

(2) respectively weighing 20-28 parts by weight of gelatin, 10-16 parts by weight of starch, 1-6 parts by weight of mixed sol, 3-8 parts by weight of soybean protein, 2-5 parts by weight of stearic acid, 1-3 parts by weight of glycerol and 30-60 parts by weight of deionized water, mixing the gelatin, the deionized water and the soybean protein, heating to obtain a mixed solution, adding the starch, stirring to obtain a blended solution, sequentially adding the mixed sol, the stearic acid and the glycerol, magnetically stirring and standing, sieving by a screen mesh under a heat preservation state, and obtaining a filtrate which is the packing material for the cigarette blasting beads.

2. The preparation method of the bead blasting packaging material for the cigarettes according to claim 1, characterized by comprising the following steps: and (2) mixing the polyvinylpyrrolidone, the nano silicon dioxide powder and the liquid sol in the step (1) according to the mass ratio of 1: 5: 12.

3. The preparation method of the bead blasting packaging material for the cigarettes according to claim 1, characterized by comprising the following steps: the magnetic stirring in the step (1) is carried out for 1-2 hours at a stirring speed of 100-160 r/min.

4. The preparation method of the bead blasting packaging material for the cigarettes according to claim 1, characterized by comprising the following steps: the heating and stirring treatment in the step (2) is to mix gelatin and deionized water, heat and stir at 50-60 ℃ for 20-30 min to obtain a gelatin solution, add soy protein, heat and stir in a water bath at 70-80 ℃ for 30-40 min.

5. The preparation method of the bead blasting packaging material for the cigarettes according to claim 1, characterized by comprising the following steps: and (3) stirring for 20-30 min at the rotating speed of 200-300 r/min, and then continuously stirring for 20-30 min at the rotating speed of 1000-3000 r/min.

6. The preparation method of the bead blasting packaging material for the cigarettes according to claim 1, characterized by comprising the following steps: and (3) magnetically stirring and standing the mixture in the step (2), wherein the magnetic stirring is carried out for 30-50 min at the water bath temperature of 70-80 ℃, and the standing is carried out for 3-6 h.

7. The preparation method of the bead blasting packaging material for the cigarettes according to claim 1, characterized by comprising the following steps: and (3) passing through a 60-100 mesh screen in the heat preservation state.