Aroma slow-release layered material, preparation thereof and application of aroma slow-release layered material in heat-not-burn tobacco products

Abstract

The invention belongs to the technical field of novel tobacco slow-release aromatic flavoring, and relates to an aroma slow-release layered material for heat-not-burn tobacco products. The aroma slow-release layered material comprises a fiber paper base material and a polymer slow-release layer compounded on the surface of the fiber paper base material; the polymer slow-release layer comprises a polymer substrate and an activated carbon@flavor compound compounded in the polymer substrate; the activated carbon@flavor compound comprises activated carbon and volatile aroma adsorbed in pores of the activated carbon. The invention also provides preparation and application of the aroma slow-release layered material. According to the technical schemes, the load rate of high-volatility aroma can be remarkably increased, the puff-by-puff release uniformity of the aroma is enhanced, the aroma retention time is prolonged, the smoking sensory quality is improved, and the HNB products are endowed with stable quality style characteristics. The invention provides an important technical means for manifesting the aroma quality of the surface aroma essence of the heat-not-burn tobacco products and inheriting the quality style characteristics of a conventional cigarette brand.

Description

technical field

[0001] The invention relates to a highly volatile fragrance slow-release material for heat-not-burn tobacco products and a preparation method thereof, belonging to the technical field of flavor slow-release of novel tobacco products. Background technique

[0002] Heat-not-burn tobacco products (also known as low-temperature cigarettes, HNB) are a new type of tobacco products with flavor characteristics closest to traditional cigarettes, and the harmful chemical components and biological toxicity of smoke are lower. However, because the HNB tobacco material part is continuously in the "high temperature environment" of about 180-350 ° C, which is significantly different from the "puff-by-puff combustion" of traditional cigarettes, resulting in extremely uneven release of flavor substances, often in the first and second puffs. It is basically completely evaporated, and the taste is quite different before and after smoking, so it is difficult to guarantee the sta...

Examples

Embodiment 1

[0089] The gas phase adsorption preparation method of activated carbon@perfume complex is as follows:

[0090] This program investigated the immobilization and sustained release effects of coconut shell activated carbon, anthracite columnar activated carbon, fruit shell activated carbon, coal activated carbon, wood activated carbon and tar activated carbon on trimethylpyrazine (boiling point 171 °C). The specific implementation method is as follows:

[0091](1) Weigh an appropriate amount of anthracite columnar activated carbon for water purification, coconut shell activated carbon, fruit shell activated carbon, coal-based activated carbon, wood activated carbon, and tar activated carbon, grind them into powder respectively and pass through a 100-mesh sieve, boil with distilled water for 30 minutes, and cool After reaching room temperature, wash with distilled water for 2 to 3 times, boil again for 30 minutes, repeat the same operation as before, and then dry in a constant tem...

Embodiment 2

[0101] The liquid-phase adsorption preparation method of activated carbon@perfume complex is as follows:

[0102] In order to further increase the adsorption capacity of the fragrance raw material, on the basis of Example 1, this example changed the gas-phase adsorption to liquid-phase adsorption, the temperature of the adsorption process was 35°C, and the weight was weighed after 24 hours. The adsorption capacity of activated carbon is shown in Table 2 shown.

[0103] Table 2 Adsorption capacity of trimethylpyrazine by different types of activated carbon under liquid phase adsorption conditions

[0104]

[0105] Comparing Table 1 and Table 2, it can be seen that the amount of fragrance adsorption by liquid phase adsorption method is larger than that of gas phase adsorption method, and by figure 2 It can be seen that the adsorption capacity of activated carbon to trimethylpyrazine is basically constant within 7 days, and the adsorption equilibrium has been reached, indica...

Embodiment 3

[0116] In this program, the paper substrate B is used as the coating substrate, the activated carbon (iodine value 1000mg / g) is used as the adsorbent, and the methyl cellulose is used as the membrane material to prepare a high-volatility fragrance slow-release material. Immobilization and sustained release effects of esters. The specific implementation method is as follows:

[0117] (1) Manufacture of paper base material B: using northern wood pulp and smoke powder as raw materials, paper base material B is produced by papermaking sheet production method, and its surface is loaded with 20% tobacco extract by dip coating, so that Its color is closer to the natural color of tobacco;

[0118] (2) Weigh 1g of the fruit shell activated carbon after the ash treatment, adopt the liquid phase adsorption method to carry out the adsorption test of ethyl propionate, add 1g of ethyl propionate dropwise to the activated carbon, and mix well (the adsorption temperature is 35 ℃, and the tim...

technical field

[0001] The invention relates to a highly volatile fragrance slow-release material for heat-not-burn tobacco products and a preparation method thereof, belonging to the technical field of flavor slow-release of novel tobacco products. Background technique

[0002] Heat-not-burn tobacco products (also known as low-temperature cigarettes, HNB) are a new type of tobacco products with flavor characteristics closest to traditional cigarettes, and the harmful chemical components and biological toxicity of smoke are lower. However, because the HNB tobacco material part is continuously in the "high temperature environment" of about 180-350 ° C, which is significantly different from the "puff-by-puff combustion" of traditional cigarettes, resulting in extremely uneven release of flavor substances, often in the first and second puffs. It is basically completely evaporated, and the taste is quite different before and after smoking, so it is difficult to guarantee the sta...

Examples

Embodiment 1

[0089] The gas phase adsorption preparation method of activated carbon@perfume complex is as follows:

[0090] This program investigated the immobilization and sustained release effects of coconut shell activated carbon, anthracite columnar activated carbon, fruit shell activated carbon, coal activated carbon, wood activated carbon and tar activated carbon on trimethylpyrazine (boiling point 171 °C). The specific implementation method is as follows:

[0091](1) Weigh an appropriate amount of anthracite columnar activated carbon for water purification, coconut shell activated carbon, fruit shell activated carbon, coal-based activated carbon, wood activated carbon, and tar activated carbon, grind them into powder respectively and pass through a 100-mesh sieve, boil with distilled water for 30 minutes, and cool After reaching room temperature, wash with distilled water for 2 to 3 times, boil again for 30 minutes, repeat the same operation as before, and then dry in a constant tem...

Embodiment 2

[0101] The liquid-phase adsorption preparation method of activated carbon@perfume complex is as follows:

[0102] In order to further increase the adsorption capacity of the fragrance raw material, on the basis of Example 1, this example changed the gas-phase adsorption to liquid-phase adsorption, the temperature of the adsorption process was 35°C, and the weight was weighed after 24 hours. The adsorption capacity of activated carbon is shown in Table 2 shown.

[0103] Table 2 Adsorption capacity of trimethylpyrazine by different types of activated carbon under liquid phase adsorption conditions

[0104]

[0105] Comparing Table 1 and Table 2, it can be seen that the amount of fragrance adsorption by liquid phase adsorption method is larger than that of gas phase adsorption method, and by figure 2 It can be seen that the adsorption capacity of activated carbon to trimethylpyrazine is basically constant within 7 days, and the adsorption equilibrium has been reached, indica...

Embodiment 3

[0116] In this program, the paper substrate B is used as the coating substrate, the activated carbon (iodine value 1000mg / g) is used as the adsorbent, and the methyl cellulose is used as the membrane material to prepare a high-volatility fragrance slow-release material. Immobilization and sustained release effects of esters. The specific implementation method is as follows:

[0117] (1) Manufacture of paper base material B: using northern wood pulp and smoke powder as raw materials, paper base material B is produced by papermaking sheet production method, and its surface is loaded with 20% tobacco extract by dip coating, so that Its color is closer to the natural color of tobacco;

[0118] (2) Weigh 1g of the fruit shell activated carbon after the ash treatment, adopt the liquid phase adsorption method to carry out the adsorption test of ethyl propionate, add 1g of ethyl propionate dropwise to the activated carbon, and mix well (the adsorption temperature is 35 ℃, and the tim...

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