Solid vehicle-mounted fragrance and preparation method thereof

Abstract

The invention discloses a solid vehicle-mounted fragrance and a preparation method thereof. The solid vehicle-mounted fragrance comprises the following components (in parts by weight): 50-100 parts of polyethylene wax; 3 to 15 parts of EVA; 1-5 parts of starch; 1-8 parts of a solubilizer; 1-20 parts of essence; 0.1 to 1 part of dye; and 0.1-2 parts of a stabilizer. According to the solid vehicle-mounted fragrance formula, the high-melting-point polyethylene wax is adopted, so that the uniformity, smoothness and flatness of a product are improved, the extrusion forming speed is increased, and demolding is convenient; the EVA increases the viscosity of the product, improves the hardness, and improves the high-temperature deformation and essence precipitation. The stabilizer is added, high-temperature illumination is stable, and discoloration is avoided; the solid vehicle-mounted fragrance disclosed by the invention is strong in fragrance expression capability and lasting in fragrance; oil seepage and oil contamination of paper are avoided; the device can be used in multiple ways, and can be hung for use and used as a replacement core.

Description

Technical Field

[0001] The invention relates to the technical field of solid vehicle-mounted fragrance in daily chemical industry, and in particular to a solid vehicle-mounted fragrance and a preparation method thereof. Background Art

[0002] Car fragrance is a fragrance product designed for the interior of a vehicle, which aims to provide a pleasant and comfortable in-vehicle environment experience by emitting fragrance. Traditional car fragrances are mainly divided into two forms: liquid and solid.

[0003] Liquid car fragrances usually use organic solvents as volatilization media. These organic solvents have good volatility and can quickly release fragrance, but they often contain some harmful substances. Long-term exposure to these harmful substances may pose potential risks to human health. In addition, liquid car fragrances have the problem of spilling and volatilizing too quickly in high temperature environments, which may cause the fragrance to be too strong or create safety hazards.

[0004] Solid car fragrances are usually made of paper or plastic materials, which are impregnated in fragrant liquids or solid fragrances to emit fragrance through volatilization. The fragrance of traditional solid fragrances evaporates quickly, has a short service life, and needs to be replaced frequently, which makes it inconvenient to use and increases the cost of use. In addition, since traditional solid fragrances are enhanced by impregnation with liquids or solid fragrances, this process may cause solid car fragrance products to leak oil, causing the fragrance products to contaminate the interior space of the vehicle or the user's hands, resulting in a poor user experience.

[0005] In order to solve these problems, a new type of solid car fragrance was developed, which achieved longer service life, stable fragrance quality, and more convenient and safer use experience by adopting new materials and technologies.

[0006] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0007] The object of the present invention is to provide a solid car fragrance, which can solve the technical problems of existing solid car fragrances such as oil leakage, short service life, frequent replacement, and light discoloration.

[0008] To achieve the above object, the present invention provides a solid car fragrance, which comprises the following components by weight:

[0009] 50-100 parts of polyethylene wax;

[0010] EVA 3-15 parts;

[0011] 1-5 parts starch;

[0012] 1-8 parts of solubilizer;

[0013] 1-20 parts of flavor;

[0014] Dye 0.1-1 part;

[0015] Stabilizer 0.1-2 parts.

[0016] Preferably, the solid car fragrance comprises the following components by weight:

[0017] 60-90 parts of polyethylene wax;

[0018] EVA 5-10 parts;

[0019] 1-3 parts starch;

[0020] 3-5 parts of solubilizer;

[0021] 5-15 parts of flavor;

[0022] Dye 0.2-0.5 parts;

[0023] Stabilizer 0.5-1 part.

[0024] Wherein, the polyethylene wax is one of the high melting point polyethylene waxes with a melting point of 90-120° C. Preferably, the polyethylene wax is one of the high melting point polyethylene waxes with a melting point of 110-120° C. High melting point polyethylene wax has good compatibility, can improve the uniformity, smoothness and flatness of the product, increase the extrusion molding rate, and facilitate demolding.

[0025] Wherein, the EVA is one or more of the vinyl acetate content in the range of 5-40%. Preferably, the EVA is one or more of the vinyl acetate content in the range of 15-25%. EVA can increase the viscosity of the product, improve the hardness, and improve the problems of high temperature deformation, essence precipitation, etc.

[0026] Wherein, the starch is one or more of corn starch, sweet potato starch, potato starch, modified starch, pea starch and cyclodextrin.

[0027] Preferably, the starch is corn starch or sweet potato starch.

[0028] Starch can improve the phenomenon of flavor precipitation.

[0029] Wherein, the solubilizing agent is one or more of hydrogenated castor oil, Tween surfactants, and Span surfactants.

[0030] Preferably, the hydrogenated castor oil is modified hydrogenated castor oil.

[0031] Preferably, the modified hydrogenated castor oil is one or more of PEG-20 hydrogenated castor oil, PEG-40 hydrogenated castor oil, and PEG-60 hydrogenated castor oil.

[0032] Preferably, the Tween surfactant is one or both of Tween-20 and Tween-80.

[0033] Preferably, the Tween surfactant is Tween-80.

[0034] Preferably, the Span-type surfactant is one or both of Span-60 and Span-80.

[0035] It is difficult for general solubilizers to solubilize a large proportion of flavors, and they will hinder the release of fragrance during the volatilization process. However, the use of the above-mentioned solubilizer can increase the solubility of the flavor no matter what kind of flavor is added to the formula, and a high proportion of flavor can be added, thereby improving the quality of solid car fragrances.

[0036] Wherein, the flavors are oil-soluble and are all commercially available.

[0037] Wherein, the dye is one or more of the commercially available oil-soluble dye concentrates.

[0038] The stabilizer is one or more commercially available light stabilizers or thermal oxygen stabilizers, including but not limited to one or more of UV-329, UV-9, UV-783, UV-770, antioxidant 1010, antioxidant 1076, antioxidant 1024, and CS-3550.

[0039] Preferably, the stabilizer is one or more of UV-329, UV-9, antioxidant 1010, and CS-3550.

[0040] To achieve the above technical objectives, the present invention provides a method, which is a method for preparing a solid car fragrance, comprising:

[0041] S1. Melt polyethylene wax and EVA at high temperature, stir continuously, and mix evenly to obtain a mixed solution A;

[0042] S2. Add starch to the mixed solution A under continuous high temperature conditions, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B;

[0043] S3, mixing the solubilizing agent and the essence, stirring evenly, to obtain a mixed solution C;

[0044] S4, after the mixed solution B is cooled, add the mixed solution C, dye and stabilizer, stir evenly, let stand for 2 minutes, and pour into the mold;

[0045] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0046] Wherein, the high temperature melting temperature is 200-250°C;

[0047] Wherein, the temperature of the mixed solution B is cooled to 120-150°C.

[0048] Beneficial effects of the present invention:

[0049] 1. The product has high hardness and a smooth and flat surface;

[0050] 2. The product has good stability, does not deform, discolor, or release flavor at high temperatures;

[0051] 3. The product has strong fragrance expression ability and lasting fragrance;

[0052] 4. The product does not seep oil and does not stain paper;

[0053] 5. The product can be used in many ways, can be hung for use, and can be used as a replacement core;

[0054] 6. The production process is simple, easy to operate and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a photo of the solid car fragrance prepared in Example 1 of the present invention;

[0056] Figure 2 This is a photo of the solid car fragrance prepared in Example 2 of the present invention;

[0057] Figure 3 This is a photo of the solid car fragrance prepared in Example 3 of the present invention;

[0058] Figure 4 This is a photo of the solid car fragrance prepared in Comparative Example 1 of the present invention;

[0059] Figure 5 This is a photo of the solid car fragrance prepared in Comparative Example 3 of the present invention; DETAILED DESCRIPTION

[0060] The experimental methods used in the following examples are conventional methods unless otherwise specified. The materials, reagents, etc. used in the following examples are all commercially available unless otherwise specified. It should be understood by those skilled in the art that the contents described below are illustrative rather than restrictive and should not be used to limit the scope of protection of the present invention.

[0061] The solid vehicle fragrance and the preparation method provided by the present invention are further described below.

[0062] The polyethylene wax of the present invention is a high melting point polyethylene wax, and its melting point is in the range of 90-120°C. In one embodiment of the present invention, the polyethylene wax can be prepared by conventional methods or existing technologies, and the present invention will not repeat them. The polyethylene wax used in the present invention can adopt any commercially available one. Preferably, the polyethylene wax used in the present invention has a melting point of 110-120°C and a viscosity of 400-500mm 2 / s, molecular weight is 1500-5000Da.

[0063] It should be pointed out that the EVA, solubilizer and starch used in the present invention are commercially available or can be prepared by themselves using existing technologies, and the present invention does not limit this.

[0064] It should be noted that the dye used in the present invention is an oil-soluble dye, all of which are commercially available, or can be prepared by existing technology, and the present invention is not limited. The flavor used in the present invention is an oil-soluble flavor, all of which are commercially available, or can be prepared by existing technology, and the present invention is not limited. The stabilizer used in the present invention is commercially available, and the present invention is not limited, such as commercially available UV-329, UV-9, UV-783, UV-770, antioxidant 1010, antioxidant 1076, antioxidant 1024, CS-3550, etc.

[0065] Example 1

[0066] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0067] S1. Melt 50 parts of polyethylene wax and 3 parts of EVA at 250°C, stir continuously, and mix well to obtain a mixed solution A;

[0068] S2. Add 1 part of starch to the mixed solution A at a high temperature of 250°C, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B.

[0069] S3, mixing 1 part of the solubilizer with 1 part of the essence, stirring evenly, to obtain a mixed solution C;

[0070] S4, after the mixed solution B is cooled, add the mixed solution C, 0.1 part of dye and 0.1 part of stabilizer CS3550, stir evenly, let stand for 2 minutes, and pour into the mold;

[0071] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0072] Figure 1 The solid car fragrance product obtained in this embodiment is shown in FIG. Figure 1 It can be seen that the surface of the solid car fragrance prepared in this embodiment is smooth and does not stain paper with oil.

[0073] Example 2

[0074] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0075] S1. Melt 65 parts of polyethylene wax and 5 parts of EVA at 250°C, stir continuously, and mix well to obtain a mixed solution A;

[0076] S2. Add 1.5 parts of starch to the mixed solution A at a high temperature of 250°C, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B;

[0077] S3, mix 3 parts of solubilizer and 5 parts of essence, stir evenly, and obtain mixed solution C;

[0078] S4, after the mixed solution B is cooled, add the mixed solution C, 0.2 parts of dye and 0.5 parts of stabilizer UV329, stir evenly, let stand for 2 minutes, and pour into the mold;

[0079] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0080] Figure 2 The solid car fragrance product obtained in this embodiment is shown in FIG. Figure 2 It can be seen that the surface of the solid car fragrance prepared in this embodiment is smooth and does not stain paper with oil.

[0081] Example 3

[0082] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0083] S1. Melt 85 parts of polyethylene wax and 10 parts of EVA at 250°C, stir continuously, and mix well to obtain a mixed solution A;

[0084] S2. Add 3.5 parts of starch to the mixed solution A at a high temperature of 250°C, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B;

[0085] S3, mix 5 parts of solubilizer and 15 parts of flavor, stir evenly, and obtain mixed solution C;

[0086] S4, after the mixed solution B is cooled, add the mixed solution C, 0.5 parts of dye and 0.5 parts of stabilizer UV-329 and 0.5 parts of UV-9, stir evenly, let stand for 2 minutes, and pour into the mold;

[0087] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0088] Figure 3The solid car fragrance product obtained in this embodiment is shown in FIG. Figure 3 It can be seen that the surface of the solid car fragrance prepared in this embodiment is smooth and does not stain paper with oil.

[0089] Example 4

[0090] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0091] S1. Melt 100 parts of polyethylene wax and 15 parts of EVA at 250°C, stir continuously, and mix well to obtain a mixed solution A;

[0092] S2. Add 5 parts of starch to the mixed solution A at a high temperature of 250°C, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B;

[0093] S3, mix 8 parts of solubilizer and 20 parts of flavor, stir evenly, and obtain mixed solution C;

[0094] S4, after the mixed solution B is cooled, add the mixed solution C, 1 part of dye, 1 part of stabilizer UV-329, and 1 part of CS3550, stir evenly, let stand for 2 minutes, and pour into the mold;

[0095] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0096] Comparative Example 1: Compared with Example 1, without adding EVA

[0097] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0098] S1. Melt 50 parts of polyethylene wax at a high temperature of 250°C, stir continuously, and mix evenly to obtain a mixed solution A;

[0099] S2. Add 1 part of starch to the mixed solution A at a high temperature of 250°C, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B.

[0100] S3, mixing 1 part of the solubilizer with 1 part of the essence, stirring evenly, to obtain a mixed solution C;

[0101] S4, after the mixed solution B is cooled, add the mixed solution C, 0.1 part of dye and 0.1 part of stabilizer CS3550, stir evenly, let stand for 2 minutes, and pour into the mold;

[0102] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0103] Figure 4 The solid car fragrance finished product obtained in this comparative example is shown in FIG. Figure 4It can be seen that the solid car fragrance prepared in this comparative example has low hardness and viscosity, deforms at high temperature (38° C.), and the fragrance precipitates.

[0104] Comparative Example 2: Compared with Example 2, no stabilizer is added

[0105] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0106] S1. Melt 65 parts of polyethylene wax and 5 parts of EVA at 250°C, stir continuously, and mix well to obtain a mixed solution A;

[0107] S2. Add 1.5 parts of starch to the mixed solution A at a high temperature of 250°C, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B;

[0108] S3, mix 3 parts of solubilizer and 5 parts of essence, stir evenly, and obtain mixed solution C;

[0109] S4, after the mixed solution B is cooled, add the mixed solution C and 0.2 parts of dye, stir evenly, let stand for 2 minutes, and pour into the mold;

[0110] S5. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0111] Comparative Example 3: Compared with Example 3, no starch is added

[0112] A formula and preparation method of a solid car fragrance, the specific steps comprising:

[0113] S1. Melt 85 parts of polyethylene wax and 10 parts of EVA at 250°C, stir continuously, and mix well to obtain a mixed solution A;

[0114] S2, mix 5 parts of solubilizer and 15 parts of flavor, stir evenly, and obtain mixed solution C;

[0115] S3, after the mixed solution A is cooled, add the mixed solution C, 0.5 parts of dye and 0.5 parts of stabilizer UV-329 and 0.5 parts of UV-9, stir evenly, let stand for 2 minutes, and pour into the mold;

[0116] S4. After the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product.

[0117] Figure 5 The solid car fragrance finished product obtained in this comparative example is shown in FIG. Figure 5 It can be seen that the solid car fragrance prepared in this comparative example has oily paper after being placed for 24 hours.

[0118] Inspection items

[0119] In order to verify the application of the present invention in practice, appearance test, high / low temperature test and fragrance evaluation test were carried out on Examples 1-4 and Comparative Examples 1-3, and 3 samples were prepared for observation in each example.

[0120] Appearance test: Observe whether the surface of the sample is smooth.

[0121] Oil stain test: Under normal temperature conditions, place the sample on white paper for 24 hours and observe whether the white paper is oily.

[0122] High temperature test: Place the sample in a constant temperature incubator (38°C) for 8 hours, take out the sample, place it at room temperature (15-30°C) for 16 hours, and observe whether the sample is deformed or oily.

[0123] Low temperature test: Place the sample in a freezer (-10°C) for 12-24 hours, take out the sample, place it at room temperature (15-25°C) for 12-24 hours, and observe whether the sample is deformed or cracked.

[0124] Color stability test: Place the sample under natural light and observe with the naked eye to see if there is any change in surface color after a period of storage.

[0125] Fragrance evaluation test: The samples are placed in a fragrance evaluation room with a space of about 10 square meters. The fragrance evaluation level is divided into 5 levels, namely: Level 1: odorless, Level 2: very light, Level 3: average, Level 4: strong, and Level 5: very strong.

[0126] The test results are shown in Table 1:

[0127] Table 1 Test results

[0128]

[0129] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the method disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0130] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solid car fragrance sheet, characterized in that: The solid car fragrance sheet comprises the following components by weight: 50-100 parts of polyethylene wax; EVA 3-15 parts; 1-5 parts starch; 1-8 parts of solubilizer; 1-20 parts of flavor; Dye 0.1-1 part; Stabilizer 0.1-2 parts.

2. The solid car fragrance sheet according to claim 1, characterized in that: The solid car fragrance sheet comprises the following components by weight: 60-90 parts of polyethylene wax; EVA 5-10 parts; 1-3 parts starch; 3-5 parts of solubilizer; 5-15 parts of flavor; Dye 0.2-0.5 parts; Stabilizer 0.5-1 part.

3. The solid car fragrance according to claim 1, characterized in that: The polyethylene wax is a high melting point polyethylene wax with a melting point of 90-120°C; Preferably, the polyethylene wax is a high melting point polyethylene wax having a melting point of 110-120°C.

4. The solid car fragrance according to claim 1, characterized in that: The EVA is one or more of the vinyl acetate content of 5-40%; Preferably, the EVA is one or more having a vinyl acetate content of 15-25%.

5. The solid car fragrance according to claim 1, characterized in that: The starch is one or more of corn starch, sweet potato starch, potato starch, modified starch, pea starch, and cyclodextrin; Preferably, the starch is corn starch or sweet potato starch.

6. The solid car fragrance according to claim 1, characterized in that: The solubilizing agent is one or more of hydrogenated castor oil, Tween surfactants, and Span surfactants; Preferably, the hydrogenated castor oil is a modified hydrogenated castor oil; most preferably, the modified hydrogenated castor oil is one or more of PEG-20 hydrogenated castor oil, PEG-40 hydrogenated castor oil, and PEG-60 hydrogenated castor oil; Preferably, the Tween surfactant is one or both of Tween-20 and Tween-80; most preferably, the Tween surfactant is Tween-80; Preferably, the Span-type surfactant is one or both of Span-60 and Span-80.

7. The solid car fragrance according to claim 1, characterized in that: The essence is an oily essence; The dye is one or more of the commercially available oil-soluble dye concentrates.

8. The solid car fragrance according to claim 1, characterized in that: The stabilizer is one or more commercially available light stabilizers or heat-oxidation stabilizers, including but not limited to one or more of UV-329, UV-9, UV-783, UV-770, antioxidant 1010, antioxidant 1076, antioxidant 1024, and CS-3550; Preferably, the stabilizer is one or more of UV-329, UV-9, antioxidant 1010, and CS-3550.

9. A method for preparing a solid car fragrance according to any one of claims 1 to 8, characterized in that: The steps of the preparation method include: S1. Melt polyethylene wax and EVA at high temperature, stir continuously, and mix evenly to obtain a mixed solution A; S2. Add starch to the mixed solution A under continuous high temperature conditions, stir until the starch is dissolved, and continue stirring for 10 minutes to obtain a mixed solution B; S3, mixing the solubilizing agent and the essence, stirring evenly, to obtain a mixed solution C; S4, after the mixed solution B is cooled, add the mixed solution C, dye and stabilizer, stir evenly, let stand for 2 minutes, and pour into the mold; S5, after the solution in the mold is cooled and solidified, demoulding is performed to obtain the finished product; Wherein, the high temperature melting temperature is 200-250°C; Wherein, the temperature of the mixed solution B is cooled to 120-150°C.

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