Double-layer volatile fragrance and preparation method thereof

Abstract

The invention relates to the technical field of aromatics, in particular to a double-layer volatile fragrance diffusion and a preparation method thereof.The double-layer volatile fragrance diffusion comprises fragrance diffusion liquid and fragrance diffusion sample strips, the fragrance diffusion liquid at least comprises, by mass, 3-30% of aromatics, 0-3% of coloring agents, 0-2% of preservatives and the balance solvents, and the solvents at least comprise ethyl alcohol, isododecane and water; the liquid layering effect is achieved by optimizing a product formula system, different visual experiences are achieved, two phases exist stably, and the double requirements of consumers for long-time lasting fragrance and visual experience are met.

Description

Technical Field

[0001] The present invention relates to the technical field of fragrances, in particular to a double-layer volatilization fragrance and a preparation method thereof. Background Art

[0002] Diffusers have long been a popular home fragrance product. The perfume market is constantly innovating, evolving concepts, scents, and packaging. For example, diffuser bottles with diverse appearances are released to enhance decorative aesthetics. However, variations in the appearance of perfume liquids are rare. Diffusers typically come in a single color, primarily achieved by adding pigments to create different color effects. Some companies offer dual-layer, dual-color diffusers, but shaking the diffuser causes the two colors to blend, losing the layered dual-color effect and preventing a sustained dual-color effect. Taiwan Patent Application (TW202304408A) discloses a multi-layer diffuser and its manufacturing method. This utilizes a water-oil combination and a specific gravity-adjusted composition to maintain distinct color layers and long-lasting fragrance release. However, the complex preparation process and high control difficulty make it difficult to implement. Furthermore, inconsistent evaporation rates between the water and oil phases affect the product's usability and visual appeal. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a double-layer volatile fragrance diffusion, which realizes the liquid stratification effect by optimizing the product formula system, achieves different visual experiences, and the two phases exist stably, meeting consumers' dual needs for long-lasting fragrance and visual experience.

[0004] The present invention provides a double-layer volatile fragrance diffusion, comprising a fragrance diffusion liquid and a fragrance diffusion sample strip. The fragrance diffusion liquid comprises at least the following raw materials, calculated by mass percentage: 3-30% of a fragrance, 0-3% of a colorant, 0-2% of a preservative, and the balance is made up of a solvent, wherein the solvent comprises at least ethanol, isododecane and water.

[0005] In one embodiment, the fragrance diffusion strip is at least one of a synthetic fiber or a natural wood strip.

[0006] In one embodiment, the number of the diffusion strips provided is 1-10 for every 100 g of the diffusion liquid.

[0007] In one embodiment, for every 100 g of fragrance diffusion liquid, the number of the fragrance diffusion strips is 2-4, and the number of natural wood strips in the fragrance diffusion strips is ≤2.

[0008] In one embodiment, for every 100 g of the diffusion liquid, the number of the diffusion strips is 3.

[0009] In one embodiment, the mass ratio of ethanol, isododecane and water is (40-60): (20-40): (1-20).

[0010] In one embodiment, the mass ratio of ethanol, isododecane and water is (40-60): (20-40): (2-10).

[0011] In one embodiment, the mass ratio of ethanol, isododecane and water is (35-45): (25-35): (4-8).

[0012] In one embodiment, the mass ratio of ethanol, isododecane and water is 50:30.666:5.640256.

[0013] In one embodiment, the solvent further comprises at least one of isopropyl myristate, isononyl isononanoate, dipropylene glycol, or 1,2-hexanediol.

[0014] In one embodiment, the solvent further comprises isopropyl myristate, isononyl isononanoate, dipropylene glycol and 1,2-hexanediol in a mass ratio of (0.1-10):(0.1-5):(0-5):(0-1).

[0015] In one embodiment, the mass ratio of isopropyl myristate, isononyl isononanoate, dipropylene glycol and 1,2-hexanediol is (2-5): (0.1-0.5): (0.001-0.005): (0.00005-0.0001).

[0016] In one embodiment, the mass ratio of isopropyl myristate, isononyl isononanoate, dipropylene glycol and 1,2-hexanediol is (3-4): (0.15-0.2): (0.0015-0.003): (0.00005-0.0001).

[0017] In one embodiment, the mass ratio of isopropyl myristate, isononyl isononanoate, dipropylene glycol and 1,2-hexanediol is 3.5:0.18981:0.002592:0.000072.

[0018] The present invention obtains a stable double-layer fragrance diffuser system by adopting a solvent system including ethanol, isododecane, isopropyl myristate, isononyl isononanoate, dipropylene glycol, 1,2-hexanediol and water, which can present a double-layer appearance (presenting different water phase and oil phase appearances based on the type and amount of added color powder), thereby presenting a beautiful visual experience effect.

[0019] Furthermore, during the research process, the present invention discovered that after a period of time, the fragrance diffuser prepared using a conventional solvent system has different volatilization rates of the upper and lower layers, resulting in a decrease in the appearance of the product. There is even a situation where one layer has completely volatilized while a large amount of the other layer remains, thereby resulting in the loss of the double-layer effect.

[0020] The present invention optimizes the solvent selection in the system and further controls the mass ratio of ethanol, isododecane, and water in the system to (40-60): (20-40): (1-20). This allows the difference in evaporation speed between the upper and lower layers of the resulting fragrance to be controlled to less than 0.3 cm / 8 hours, thus avoiding the problem of loss of the dual-layer effect due to excessive evaporation speed. However, a difference in evaporation speed between the upper and lower layers still exists, and this difference becomes more pronounced with age. In the process of exploring further reducing the difference in evaporation speed between the upper and lower layers, in order to ensure the overall evaporation speed of the product and the stability of the fragrance and colorant in the system, it is not possible to balance the evaporation speed between the two layers by simply adjusting the ethanol content in the system.

[0021] During the research process, the inventors unexpectedly discovered that by optimizing the selection and number of diffusion strips, while ensuring the overall product evaporation rate and system stability, the difference in evaporation rate between the upper and lower layers after 8, 24, and 48 hours of storage can be maintained at <0.1 cm / h. In particular, the use of three single synthetic fiber diffusion strips avoids the unsightly effects of using two diffusion strips simultaneously, while also controlling the difference in evaporation rate between the upper and lower layers to <0.05 cm / h after 8, 24, and 48 hours of storage, maintaining the double-layer visual aesthetic for a long time.

[0022] In one embodiment, the preservative is selected from at least one of natural phenol preservatives or polyol preservatives.

[0023] In one embodiment, the natural phenolic preservative includes at least p-hydroxyacetophenone.

[0024] In one embodiment, the polyol preservative is selected from at least one of ethylhexylglycerin, 1,2-hexanediol, 1,3-propylene glycol, and 1,2-pentanediol.

[0025] In one embodiment, the preservative is a combination of p-hydroxyacetophenone and ethylhexylglycerin in a mass ratio of (0-1):(0-1) (p-hydroxyacetophenone and ethylhexylglycerin are not both 0).

[0026] In one embodiment, the mass ratio of p-hydroxyacetophenone to ethylhexylglycerin is 0.000864:0.000072.

[0027] In one embodiment, the fragrance is an essence.

[0028] In one embodiment, the colorant includes an oil-soluble colorant and a water-soluble colorant.

[0029] In one embodiment, the oil-soluble colorant includes at least CI 61565.

[0030] In one embodiment, the water-soluble colorant includes at least CI 16035 and CI 19140.

[0031] The present invention adds oil-soluble colorants and water-soluble colorants, and formulates different colors based on different colorants to obtain a double-layer volatile fragrance with diverse colors and appearances, thereby meeting the different color preferences of different consumers.

[0032] Another aspect of the present invention provides a method for preparing a double-layer volatile fragrance diffusion fragrance, which comprises at least the following steps: adding various raw materials into a container according to mass percentage, stirring and mixing to obtain a fragrance diffusion liquid, and inserting a fragrance diffusion strip.

[0033] In one embodiment, the stirring and mixing speed is 200-300 rpm, and the time is 10-60 min.

[0034] The double-layer volatilization fragrance provided by the present invention can be prepared by simple mixing, does not cause instability problems such as color bleeding, has a simple process, is easy to control, can realize large-scale industrial production and promotion, and has high market application value.

[0035] Beneficial effects

[0036] 1. The present invention provides a double-layer volatile fragrance diffusion, which realizes the liquid stratification effect by optimizing the product formula system, achieves different visual experiences, and the two phases exist stably, meeting consumers' dual needs for long-lasting fragrance and visual experience.

[0037] 2. The present invention adopts a solvent system including ethanol, isododecane, isopropyl myristate, isononyl isononanoate, dipropylene glycol, 1,2-hexanediol and water to obtain a stable double-layer fragrance diffuser system, which can present a double-layer appearance (different water phase and oil phase appearances based on the type and amount of added color powder), thereby presenting a beautiful visual experience effect.

[0038] 3. The present invention comprehensively optimizes the solvent selection in the system and further controls the mass ratio of ethanol, isododecane and water in the system to (40-60): (20-40): (1-20), so that the difference in the evaporation rate of the upper and lower layers of the obtained fragrance diffusion is controlled to <0.3 cm / 8h, avoiding the problem of loss of the double-layer effect due to excessive evaporation rate.

[0039] 4. By optimizing the selection and number of fragrance diffusion strips, the present invention ensures the overall volatilization rate of the product and the stability of the system. At the same time, the difference in volatilization rate between the upper and lower layers of the product after 8 hours, 24 hours and 48 hours can be maintained at <0.1 cm / h.

[0040] 5. The present invention adds oil-soluble colorants and water-soluble colorants, and formulates different colors based on different colorants to obtain a double-layer volatile fragrance with diverse colors and appearances, thereby meeting the different color preferences of different consumers.

[0041] 6. The double-layer volatilization fragrance provided by the present invention can be prepared by simple mixing, without the occurrence of instability problems such as color bleeding, the process is simple and easy to control, and can be realized in large-scale industrial production and promotion, and has high market application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the synthetic fibers and natural wood strips used in Example 1, with the synthetic fibers on the left and the natural wood strips on the right.

[0043] Figure 2 Schematic diagram of the double-layer volatilization and fragrance diffusion obtained in Example 4. DETAILED DESCRIPTION

[0044] Example 1, Comparative Examples 1-2

[0045] Example 1 and Comparative Examples 1-2 of the present invention provide a double-layer volatile fragrance diffusion, including a fragrance diffusion liquid and a fragrance diffusion strip. The formula of the fragrance diffusion liquid is shown in Table 1, calculated by mass percentage.

[0046] Table 1

[0047]

[0048]

[0049] The fragrance diffusion strips are made of synthetic fibers, and 3 fragrance diffusion strips are provided for every 100g of fragrance diffusion liquid.

[0050] On the other hand, Example 1 and Comparative Examples 1-2 of the present invention provide a method for preparing a double-layer volatile fragrance diffusion fragrance, comprising the following steps: adding each raw material into a container according to mass percentage, stirring and mixing at 200 rpm for 30 minutes to obtain a fragrance diffusion liquid, and inserting a fragrance diffusion sample.

[0051] Example 2

[0052] Example 2 of the present invention provides a double-layer volatile fragrance diffusion fragrance and a preparation method thereof. In its specific implementation method, Example 1 is different in that the fragrance diffusion strips are made of synthetic fibers, and the number of the fragrance diffusion strips is 2 for every 100g of fragrance diffusion liquid.

[0053] Example 3

[0054] Example 3 of the present invention provides a double-layer volatile fragrance diffusion fragrance and a preparation method thereof. In its specific implementation method, Example 1 is different in that the fragrance diffusion strips are synthetic fibers, and the number of the fragrance diffusion strips is 4 for every 100g of fragrance diffusion liquid.

[0055] Example 4

[0056] Example 4 of the present invention provides a double-layer volatile fragrance diffusion fragrance and a preparation method thereof. In its specific implementation method, Example 1 is different in that the fragrance diffusion strips are synthetic fibers and natural wood strips, and every 100g of fragrance diffusion liquid is provided with 2 synthetic fibers and 2 natural wood strips.

[0057] Comparative Example 3

[0058] Comparative Example 3 of the present invention provides a double-layer volatile fragrance diffusion fragrance and a preparation method thereof. In its specific implementation manner, Example 1 is different in that the fragrance diffusion strips are natural wooden strips, and 4 fragrance diffusion strips are provided for every 100g of fragrance diffusion liquid.

[0059] Performance Testing

[0060] 100 g of the fragrance diffusion liquid provided in each embodiment and comparative example was placed in a container, and the corresponding fragrance diffusion sample strip was added to obtain a sample to be tested. The upper liquid level and the oil-water interface liquid level of the sample to be tested were recorded after 8 h, 24 h and 48 h of placement, and the lower and upper liquid levels of the sample to be tested were calculated. The results are shown in Table 2.

[0061] Table 2

[0062]

[0063] Analysis of the data in Table 2 shows that the double-layer volatile fragrance diffusion provided by Examples 1-4 has closer lower and upper layer descending liquid levels than the double-layer volatile fragrance diffusion provided by Comparative Examples 1-3, indicating that the evaporation speeds of the upper and lower layers are close, which better meets actual needs.

Claims

1. A double-layer volatile fragrance diffuser, characterized in that: The invention comprises a fragrance diffusion liquid and a fragrance diffusion sample strip. The fragrance diffusion liquid comprises at least the following raw materials by mass percentage: 3-30% of fragrance, 0-3% of colorant, 0-2% of preservative, and the balance is made up of solvent, and the solvent comprises at least ethanol, isododecane and water.

2. The double-layer volatile fragrance diffuser according to claim 1, characterized in that: The fragrance diffusion strips are at least one of synthetic fibers or natural wood strips.

3. The double-layer volatile fragrance diffusion fragrance according to claim 2, characterized in that: For every 100g of fragrance diffusion liquid, the number of the fragrance diffusion strips is 2-4, and the number of natural wood strips in the fragrance diffusion strips is ≤2.

4. The double-layer volatile fragrance diffuser according to claim 1, characterized in that: The mass ratio of the ethanol, isododecane and water is (40-60): (20-40): (1-20).

5. The double-layer volatile fragrance diffusion device according to claim 4, characterized in that: The solvent further comprises at least one of isopropyl myristate, isononyl isononanoate, dipropylene glycol or 1,2-hexanediol.

6. The double-layer volatile fragrance diffuser according to claim 5, characterized in that: The mass ratio of isopropyl myristate, isononyl isononanoate, dipropylene glycol and 1,2-hexanediol is (2-5): (0.1-0.5): (0.001-0.005): (0.00005-0.0001).

7. The double-layer volatile fragrance diffuser according to claim 1, characterized in that: The preservative is selected from at least one of natural phenol preservatives and polyol preservatives.

8. The double-layer volatile fragrance diffusion device according to claim 7, characterized in that: The natural phenolic preservatives at least include p-hydroxyacetophenone.

9. The double-layer volatile fragrance diffuser according to claim 7, characterized in that: The polyol preservative is selected from at least one of ethylhexylglycerin, 1,2-hexanediol, 1,3-propylene glycol or 1,2-pentanediol.

10. A method for preparing a double-layer volatilization fragrance according to any one of claims 1 to 9, characterized in that: Add the raw materials into the container according to the mass percentage, stir and mix to obtain the fragrance diffusion liquid, and insert the fragrance diffusion sample strip.

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