Fragrance candle capable of lasting fragrance and preparation process thereof

Abstract

The invention relates to the field of aromatherapy candles, and particularly discloses a long-lasting fragrance-retaining aromatherapy candle and a preparation process thereof, the long-lasting fragrance-retaining aromatherapy candle comprises the following raw materials by mass: 40-50 parts of soybean wax, 3-8 parts of plant essential oil, 2-3 parts of clove oil, 3-7 parts of hydroxypropyl-beta-cyclodextrin inclusion perfume, 1-3 parts of beeswax, 0.5-1 part of an antioxidant, and 0.1-0.5 part of DBS. The preparation method of the hydroxypropyl-beta-cyclodextrin inclusion spice comprises the following steps: mixing plant essential oil and evening primrose oil to obtain a compound oil phase, dissolving hydroxypropyl-beta-cyclodextrin in water at 60-65 DEG C, dropwise adding the compound oil phase, stirring at a constant temperature for 2-3 hours, cooling to 45 DEG C, adding Arabic gum, stirring and dissolving, transferring to 4 DEG C, refrigerating for 10-12 hours, filtering, and drying to obtain the hydroxypropyl-beta-cyclodextrin inclusion spice. And filtering, taking supernate, and carrying out vacuum freeze drying to obtain the hydroxypropyl-beta-cyclodextrin inclusion spice. The aromatherapy candle is good in lasting fragrance retaining effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aromatherapy candles, more particularly, it relates to a long-lasting fragrance aromatherapy candle and a preparation process thereof. BACKGROUND

[0002] In order to pursue good olfactory experience of the body and residence, people have different concentrations of perfume, eau de toilette, fragrance, etc. for selection on the market. The aromatherapy candle is composed of a waxy carrier, a fragrance and a candle core, etc. When burning, the wax near the candle core melts into a liquid state by heat, rises along the candle core by capillary action, and vaporizes into "wax vapor" under the high temperature of the flame. Fragrance molecules volatilize into the air with the vapor and diffuse to the surrounding environment.

[0003] The higher the volatility of fragrance molecules, the easier and faster they volatilize, but the shorter the fragrance retention time. Therefore, citrus essential oils and wood-based fragrance are often used together in perfumes to improve the long-lasting fragrance retention time by dividing them into "front notes" and "back notes". Due to the limited compatibility of the waxy physical adsorption of the fragrance, the destruction of the fixed fragrance components by high temperature during candle burning, and the lack of solid carrier adsorption, etc., the aromatherapy candle has insufficient fragrance persistence.

[0004] With the improvement of people's living standards, for individual consumers, long-lasting candles can turn the demand for fragrance to "immersive experience". Therefore, providing a long-lasting fragrance aromatherapy candle has high economic and research value for immersive optimization of user experience and filling the market gap. SUMMARY

[0005] In order to improve the long-lasting fragrance effect of the long-lasting fragrance aromatherapy candle, the present application provides a long-lasting fragrance aromatherapy candle and a preparation process thereof.

[0006] In a first aspect, the present application provides a long-lasting fragrance aromatherapy candle, which comprises the following mass parts of raw materials: 40-50 parts of soy wax, 3-8 parts of plant essential oil, 2-3 parts of clove oil, 3-7 parts of hydroxypropyl-β-cyclodextrin inclusion fragrance, 1-3 parts of beeswax, 0.5-1 part of antioxidant, and 0.1-0.5 part of DBS; the antioxidant comprises one or more of BHT or vitamin E.

[0007] By adopting the technical scheme, the soy wax is mainly composed of triglyceride, the fatty acid chain is mainly glyceride of unsaturated fatty acid and saturated fatty acid, has certain flexibility, moderate melting point and good fragrance release. The main component of the beeswax is ester formed by high fatty acid and high monohydric alcohol, the long-chain fatty acid ester part in the molecular structure is similar to the triglyceride structure of the soy wax, can be well compatible with the soy wax molecules through van der Waals force, fills in the interstitial space of the soy wax crystal, enhances the hardness and flexibility of the candle. Meanwhile, the strong force between the beeswax molecules helps to maintain the overall structural stability of the candle. By adding certain additives, the essential oil is not easy to be oxidized, and the candle has good stability.

[0008] In a specific embodiment, the preparation steps of the hydroxypropyl-β-cyclodextrin inclusion perfume include: dissolving hydroxypropyl-β-cyclodextrin in water at 60-65°C, adding plant essential oil dropwise, constant temperature stirring for 2-3 hours, moving into 4°C refrigerator for 10-12 hours, filtering to take supernatant, vacuum freeze-drying to obtain hydroxypropyl-β-cyclodextrin inclusion perfume.

[0009] In a specific embodiment, the plant essential oil includes one or more of lavender essential oil, mint essential oil, tea tree essential oil, rose essential oil, lemon essential oil, eucalyptus essential oil, rosemary essential oil, bergamot essential oil, grapefruit essential oil, sweet orange essential oil, basil essential oil, thyme essential oil, jasmine essential oil, sandalwood essential oil, cedar essential oil, chamomile essential oil, sage essential oil, cinnamon essential oil, sweet fennel essential oil, bluegrass essential oil, benzoin essential oil.

[0010] Preferably, the plant essential oil includes lavender essential oil.

[0011] By adopting the technical scheme, the preparation method is relatively simple, the cavity inner diameter of the hydroxypropyl-β-cyclodextrin is suitable for the size of linalool of the essential oil, the hydroxypropyl-β-cyclodextrin cavity can capture the essential oil molecules through hydrophobic effect to achieve better inclusion effect, through freeze-drying, water is removed by sublimation under vacuum, and the obtained product is loose, porous and high-purity hydroxypropyl-β-cyclodextrin inclusion perfume, which has low carbon black index and long-lasting fragrance retention effect.

[0012] In a specific embodiment, the preparation steps of the hydroxypropyl-β-cyclodextrin inclusion perfume include: mixing plant essential oil and evening primrose oil to obtain a composite oil phase, dissolving hydroxypropyl-β-cyclodextrin in water at 60-65°C, adding the composite oil phase dropwise, constant temperature stirring for 2-3 hours, cooling to 45°C, adding gum arabic and stirring to dissolve, moving into 4°C refrigerator for 10-12 hours, filtering to take supernatant, vacuum freeze-drying to obtain hydroxypropyl-β-cyclodextrin inclusion perfume.

[0013] By adopting the technical scheme, the plant essential oil, especially the lavender essential oil and the evening primrose oil are mixed first, the intermolecular hydrogen bond is formed between the two, the essential oil molecules are anchored through the hydrophobic effect, the inclusion stability is improved, the essential oil molecules are relatively stably present in the cavity of the hydroxypropyl-beta-cyclodextrin, the gum arabic is added in the last step, the branched arabinan of the gum arabic is inserted into the gap between the cyclodextrins, the dissociation of the inclusion compound is prevented through the steric hindrance effect, the inclusion compound is more stable, and the gum arabic improves the adhesion effect on the fibers of clothes after burning, cooperates with the long-chain gamma-linolenic acid of the evening primrose oil to wrap the fibers, and the fragrance of the aromatherapy candle is more persistent.

[0014] In a specific implementable scheme, the mass ratio of the plant essential oil and the evening primrose oil is 1:(0.8-1.2).

[0015] By adopting the technical scheme, the anchoring effect of the fragrance substance is sufficient, and the fragrance substance is rich in carrying.

[0016] In a specific implementable scheme, the mass ratio of the hydroxypropyl-beta-cyclodextrin and the gum arabic is 14:(1-2).

[0017] In a specific implementable scheme, the mass ratio of the soy wax, the beeswax and the DBS is 14:(1-2).

[0018] By adopting the technical scheme, the low melting point (52℃) of the soy wax ensures uniform burning at low temperature, the beeswax improves the hardness of the wax body, avoids the "wax pool too deep" to cause oxygen deficiency and smoke, and the DBS uniformly disperses the essential oil and prevents local high-temperature cracking, which is suitable for the component setting of the application, and the fragrance substance in the aromatherapy candle prepared is better volatilized.

[0019] In the second aspect, the application provides a preparation process of the aromatherapy candle with persistent fragrance, which comprises the following preparation steps: S1: weighing the raw materials according to the mass fraction for standby; S2: heating the soy wax, the beeswax, BHT and DBS in a water bath to 65-70℃ until melting, and then continuing to stir until fully dissolved; S3: cooling to 55-60℃, adding the remaining components, and stirring for 3-5 minutes; S4: pouring the mixed wax liquid into a mold, inserting a candle core, and naturally cooling and solidifying to form an aromatherapy candle with persistent fragrance.

[0020] In summary, the application has the following beneficial effects: 1.The application provides a long-lasting scented aromatherapy candle, which is prepared by adding soy wax, beeswax and DBS in a certain mass ratio, so that the product components are uniform, and the aroma substances are fully released; further adding a certain mass ratio of hydroxypropyl-β-cyclodextrin complexed perfume, plant essential oil and clove oil, so that the aroma is uniform and long-lasting.

[0021] 2.The application defines the preparation steps of the hydroxypropyl-β-cyclodextrin complexed perfume, and further defines the internal plant essential oil as lavender essential oil, which is more suitable for its cavity size, and further premixes the lavender oil and evening primrose oil to improve the durability, and mixes a certain mass of gum arabic to improve the attachment effect on clothes, so that the prepared aromatherapy candle has a long-lasting fragrance effect on indoor space and user's clothes. DETAILED DESCRIPTION

[0022] To further help understand the technical solutions of the application, the following describes the technical solutions of the application in more detail by providing several specific implementation examples, and all the described examples are only part of the implementation examples of the application, not all; The following specific examples can be combined with each other, and the same or similar concepts or processes may not be described again in some examples; and the reaction devices, monomer compounds and the like involved in the following examples are commercially available.

[0023] The following examples are further illustrations of the application, and the application is not limited thereto.

[0024] Preparation Example Preparation Example 1: Hydroxypropyl-β-cyclodextrin complexed perfume Dissolve 70 g of hydroxypropyl-β-cyclodextrin in 300 ml of 60℃ water, add 30 g of lavender essential oil dropwise, constant temperature stirring for 2 hours, move to 4℃ cold storage for 12 hours, filter the supernatant, vacuum freeze-drying, and grind to obtain hydroxypropyl-β-cyclodextrin complexed perfume.

[0025] Preparation Example 2: Hydroxypropyl-β-cyclodextrin complexed perfume Mix 15 g of lavender essential oil and 15 g of evening primrose oil to obtain a complex oil phase, dissolve 70 g of hydroxypropyl-β-cyclodextrin in 60℃ water, add the complex oil phase dropwise, constant temperature stirring for 2 hours, cooling to 45℃, moving to 4℃ cold storage for 12 hours, filtering the supernatant, vacuum freeze-drying, and grinding to obtain hydroxypropyl-β-cyclodextrin complexed perfume.

[0026] Preparation Example 3: Hydroxypropyl-β-cyclodextrin complexed perfume Mix 15 g of lavender essential oil and 15 g of evening primrose oil to obtain a composite oil phase, dissolve 70 g of hydroxypropyl-β-cyclodextrin in water at 60 ℃, drop the composite oil phase, constant temperature stirring for 2 hours, cooling to 45 ℃, adding 5 g of gum arabic and stirring to dissolve, moving into 4 ℃ refrigerator for 12 hours, filtering to take the supernatant, vacuum freeze-drying, grinding to obtain hydroxypropyl-β-cyclodextrin inclusion perfume.

[0027] Preparation Example 4: hydroxypropyl-β-cyclodextrin inclusion perfume: Mix 20 g of lavender essential oil and 10 g of evening primrose oil to obtain a composite oil phase, dissolve 70 g of hydroxypropyl-β-cyclodextrin in water at 60 ℃, drop the composite oil phase, constant temperature stirring for 2 hours, cooling to 45 ℃, adding 5 g of gum arabic and stirring to dissolve, moving into 4 ℃ refrigerator for 12 hours, filtering to take the supernatant, vacuum freeze-drying, grinding to obtain hydroxypropyl-β-cyclodextrin inclusion perfume.

[0028] Preparation Example 5: hydroxypropyl-β-cyclodextrin inclusion perfume: Mix 15 g of lavender essential oil and 15 g of evening primrose oil to obtain a composite oil phase, dissolve 70 g of hydroxypropyl-β-cyclodextrin in water at 60 ℃, drop the composite oil phase, constant temperature stirring for 2 hours, cooling to 45 ℃, adding 10 g of gum arabic and stirring to dissolve, moving into 4 ℃ refrigerator for 12 hours, filtering to take the supernatant, vacuum freeze-drying, grinding to obtain hydroxypropyl-β-cyclodextrin inclusion perfume. Example

[0029] Example 1 Raw material preparation: soy wax 45 g, lavender essential oil 4 g, clove oil 2 g, hydroxypropyl-β-cyclodextrin inclusion perfume prepared in Preparation Example 1 5 g, beeswax 2 g, BHT 0.5 g, vitamin E 0.5 g, DBS 0.3 g.

[0030] Preparation steps: S1: weigh the raw materials according to the mass fraction and prepare for use; S2: heat the soy wax and beeswax in a water bath to 65 ℃ until melted, then add BHT and DBS, continue to stir until fully dissolved; S3: cool to 55 ℃, add the remaining components, stir for 3 minutes; S4: pour the mixed wax liquid into a mold, insert a candle core, and naturally cool and solidify to form a shape, then take it out of the mold to obtain a long-lasting scented candle.

[0031] Example 2 Raw material preparation: soy wax 45 g, lavender essential oil 4 g, clove oil 2 g, hydroxypropyl-β-cyclodextrin inclusion perfume prepared in Preparation Example 2 5 g, beeswax 2 g, BHT 0.5 g, vitamin E 0.5 g, DBS 0.3 g.

[0032] Preparation steps: S1: Weigh the raw materials by mass fraction for standby; S2: Heat the soybean wax and beeswax in a water bath to 65℃ until melted, then add BHT and DBS, continue to stir until fully dissolved; S3: Cool to 55℃, add the remaining components, stir for 3 minutes; S4: Pour the mixed wax liquid into the mold, insert the candle core, naturally cool and solidify into shape, and take out from the mold to get the long-lasting fragrance aromatherapy candle.

[0033] Example 3 Raw material preparation: soybean wax 45g, lavender essential oil 4g, clove oil 2g, hydroxypropyl-β-cyclodextrin inclusion fragrance prepared in Preparation Example 3 5g, beeswax 2g, BHT 0.5g, vitamin E 0.5g, DBS 0.3g.

[0034] Preparation steps: S1: Weigh the raw materials by mass fraction for standby; S2: Heat the soybean wax and beeswax in a water bath to 65℃ until melted, then add BHT and DBS, continue to stir until fully dissolved; S3: Cool to 55℃, add the remaining components, stir for 3 minutes; S4: Pour the mixed wax liquid into the mold, insert the candle core, naturally cool and solidify into shape, and take out from the mold to get the long-lasting fragrance aromatherapy candle.

[0035] Example 4 Raw material preparation: soybean wax 45g, lavender essential oil 4g, clove oil 2g, hydroxypropyl-β-cyclodextrin inclusion fragrance prepared in Preparation Example 4 5g, beeswax 2g, BHT 0.5g, vitamin E 0.5g, DBS 0.3g.

[0036] Preparation steps: S1: Weigh the raw materials by mass fraction for standby; S2: Heat the soybean wax and beeswax in a water bath to 65℃ until melted, then add BHT and DBS, continue to stir until fully dissolved; S3: Cool to 55℃, add the remaining components, stir for 3 minutes; S4: Pour the mixed wax liquid into the mold, insert the candle core, naturally cool and solidify into shape, and take out from the mold to get the long-lasting fragrance aromatherapy candle.

[0037] Example 5 Raw material preparation: soybean wax 45g, lavender essential oil 4g, clove oil 2g, hydroxypropyl-β-cyclodextrin inclusion fragrance prepared in Preparation Example 5 5g, beeswax 2g, BHT 0.5g, vitamin E 0.5g, DBS 0.3g.

[0038] Preparation steps: S1: Weigh the raw materials by mass fraction for standby; S2: Soy wax and beeswax were heated to 65℃ in a water bath until melted, then BHT and DBS were added, and stirring was continued until fully dissolved; S3: The temperature was lowered to 55℃, and the remaining components were added, stirring for 3 minutes; S4: The mixed wax liquid was poured into a mold, a candle core was inserted, and it was naturally cooled and solidified to form a shape, and the durable fragrance candle was obtained by removing it from the mold.

[0039] Comparative Example Comparative Example 1 Raw material preparation: soy wax 45g, lavender essential oil 9g, clove oil 2g, beeswax 2g, BHT 0.5g, vitamin E 0.5g, DBS 0.3g.

[0040] Preparation steps: S1: The raw materials were weighed according to the mass fraction and prepared for use; S2: Soy wax and beeswax were heated to 65℃ in a water bath until melted, then BHT and DBS were added, and stirring was continued until fully dissolved; S3: The temperature was lowered to 55℃, and the remaining components were added, stirring for 3 minutes; S4: The mixed wax liquid was poured into a mold, a candle core was inserted, and it was naturally cooled and solidified to form a shape, and the durable fragrance candle was obtained by removing it from the mold.

[0041] Comparative Example 2 Raw material preparation: soy wax 47g, lavender essential oil 4g, clove oil 2g, hydroxypropyl-β-cyclodextrin inclusion fragrance prepared in Preparation Example 1 5g, BHT 0.5g, vitamin E 0.5g.

[0042] Preparation steps: S1: The raw materials were weighed according to the mass fraction and prepared for use; S2: Soy wax and beeswax were heated to 65℃ in a water bath until melted, then BHT and DBS were added, and stirring was continued until fully dissolved; S3: The temperature was lowered to 55℃, and the remaining components were added, stirring for 3 minutes; S4: The mixed wax liquid was poured into a mold, a candle core was inserted, and it was naturally cooled and solidified to form a shape, and the durable fragrance candle was obtained by removing it from the mold.

[0043] Performance test Clothing fragrance retention time: The fragrance candles prepared in the examples and comparative examples were lit in a 50m2 closed room, 5 people in a group wearing ordinary cotton long-sleeved clothing walked freely in the room for half an hour, then the volunteers wearing cotton long-sleeved clothing were tested for fragrance retention time in half-hour units, and the average value was taken; Room fragrance concentration: the fragrance candle was extinguished after burning for two hours, and the fragrance concentration in the room was tested at 1 hour, 8 hours, and 24 hours.

[0044] The test results are shown in Table 1.

[0045] Table 1 In combination with Examples 1-2, Comparative Examples 1-2 and Table 1, the present application uses soy wax, beeswax and DBS in a certain mass ratio, the product components are uniform, the aroma substances are fully released, further adding a certain mass ratio of hydroxypropyl-β-cyclodextrin complexed perfume and lavender essential oil, clove oil, the aroma is uniform and the fragrance lingers.

[0046] In combination with Examples 2-5 and Table 1, the present application pre-mixes a certain mass of lavender oil and evening primrose oil to improve the persistence, and mixes a certain mass of gum arabic to improve the adhesion effect on clothes, so as to prepare a scented candle which has a persistent fragrance effect on indoor space and user's clothes.

[0047] and the carbon black index is slightly high The specific embodiments are only an explanation of the present application, and are not a limitation of the present application, and those skilled in the art can make modifications to the embodiments without creative contribution according to the needs after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A process for preparing a scented candle with a long-lasting fragrance, characterized by: The invention comprises the following raw materials in parts by weight: 40-50 parts of soybean wax, 3-8 parts of plant essential oil, 2-3 parts of clove oil, 3-7 parts of hydroxypropyl-β-cyclodextrin inclusion fragrance, 1-3 parts of beeswax, 0.5-1 part of antioxidant, and 0.1-0.5 part of DBS; the antioxidant comprises one or more of BHT and vitamin E.

2. The process for preparing a scented candle with a long-lasting fragrance according to claim 2, wherein: The preparation steps of the hydroxypropyl-β-cyclodextrin inclusion fragrance include: dissolving hydroxypropyl-β-cyclodextrin in 60-65° C. water, adding plant essential oil dropwise, stirring at a constant temperature for 2-3 hours, transferring to a 4° C. refrigeration for 10-12 hours, filtering the supernatant, vacuum freeze-drying, and obtaining the hydroxypropyl-β-cyclodextrin inclusion fragrance.

3. The process for preparing a scented candle with a long-lasting fragrance according to claim 2, wherein: The preparation steps of the hydroxypropyl-β-cyclodextrin inclusion fragrance include: mixing plant essential oil and evening primrose oil to obtain a composite oil phase, dissolving hydroxypropyl-β-cyclodextrin in 60-65° C. water, dropwise adding the composite oil phase, stirring at a constant temperature for 2-3 hours, cooling to 45° C., adding gum arabic, stirring to dissolve, transferring to a 4° C. refrigeration for 10-12 hours, filtering, collecting the supernatant, and vacuum freeze-drying to obtain the hydroxypropyl-β-cyclodextrin inclusion fragrance.

4. The process for preparing a scented candle with a long-lasting fragrance according to claim 3, wherein: The mass ratio of the plant essential oil to evening primrose oil is 1:(0.8-1.2).

5. The process for preparing a scented candle with a long-lasting fragrance according to claim 3, wherein: The mass ratio of the hydroxypropyl-β-cyclodextrin to gum arabic is 14:(1-2).

6. The process for preparing a scented candle with a long-lasting fragrance according to claim 1, wherein: The mass ratio of the soybean wax, beeswax and DBS is 45:(4-5):0.

3.

7. The process for preparing a scented candle with a long-lasting fragrance according to claim 3, wherein: The plant essential oils include one or more of lavender essential oil, peppermint essential oil, tea tree essential oil, rose essential oil, lemon essential oil, eucalyptus essential oil, rosemary essential oil, bergamot essential oil, grapefruit essential oil, sweet orange essential oil, basil essential oil, thyme essential oil, jasmine essential oil, sandalwood essential oil, cedarwood essential oil, chamomile essential oil, sage essential oil, cinnamon essential oil, sweet fennel essential oil, vetiver essential oil, and benzoin essential oil.

8. A process for preparing the scented candle with long-lasting fragrance according to any one of claims 1 to 7, characterized in that: The method comprises the following preparation steps: S1: weigh the raw materials by mass; S2: Heat the soy wax and beeswax in a water bath at 65-70°C until melted, then add BHT and DBS and continue stirring until fully dissolved; S3: Cool to 55-60°C, add the remaining ingredients, and stir for 3-5 minutes; S4: Pour the evenly mixed wax liquid into the mold, insert the candle wick, cool it naturally to solidify and form it, and take it out of the mold to obtain a long-lasting aromatherapy candle.

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