Modified silicon-free shampoo based on woody oil composition and preparation method thereof

Abstract

The invention discloses modified silicon-free shampoo based on a woody oil composition and a preparation method of the silicon-free shampoo. The shampoo comprises the following components in parts by mass: 10 parts of a woody oil composition, 40 parts of a surfactant composition and 1 part of a thickening agent, the woody oil composition is prepared from the following compositions in parts by mass: 30 to 40 parts of tea seed extract, 20 to 30 parts of walnut oil extract and 30 to 40 parts of macadamia nut oil. The preparation process of the shampoo comprises the following steps: emulsifying the woody oil composition, adding the surfactant composition in a stirring state, then adding the rest raw materials, and then carrying out vacuum degassing and filtering to obtain the shampoo. Based on the synergistic effect of all the components, the shampoo can be directly absorbed by scalp and avoid accumulation while achieving the effects of brightening and smoothening hair, and the technical problems that in the prior art, silicon-free shampoo is not thorough in cleaning, hair is dry and free of luster and the like are effectively solved.

Description

Technical Field

[0001] The present invention relates to a modified silicon-free shampoo, and particularly to a modified silicon-free shampoo based on a woody oil composition and a preparation method thereof, belonging to the technical field of fine chemical chemistry. Background Art

[0002] With the development of technology, as an important part of daily chemical products, the market's demands for shampoo are no longer limited to basic cleaning functions, but more require it to have multiple functions such as maintenance and safety. In the prior art, shampoos can generally be divided into silicon-free shampoos and silicon-containing shampoos. Among them, silicon-containing shampoos are widely accepted by the market because of their low price, excellent cleaning ability, and the characteristic that hair can be made smooth after short-term use. However, with the long-term use of silicon-containing shampoos, their drawbacks have been gradually revealed. Among them, the most important problem is that although silicone oil can modify the surface defects of hair in the short term and make it smooth and silky, in the long term, due to the difficulty of decomposition of silicone oil, it will accumulate on the surface of the scalp and hair strands. Seriously, it will block hair follicles, resulting in problems such as increased dandruff, greasy scalp, flattened hair strands, and itching. Therefore, in order to solve the problems brought by silicone oil in shampoos, silicon-free shampoos have been introduced in the prior art.

[0003] However, due to the absence of silicone oil in the silicon-free shampoos in the prior art, their cleaning ability has been greatly reduced. Intuitively, the amount of shampoo foam is significantly reduced, and it is easy to remain, and it needs to be rinsed multiple times to be completely removed. This instead makes it more difficult for people with more oily hair to thoroughly clean when using silicon-free shampoos, directly leading to problems such as increased primary dandruff and greasy scalp. Further, silicone oil can also be used as a brightening agent in shampoos, making the hair more shiny. However, silicon-free shampoos lack brightening components, resulting in dry, rough, dull, and lackluster hair strands after washing. In addition, in addition to the extremely poor use experience, the high cost of silicon-free shampoos also leads to their high prices, making it difficult to promote and apply in the market.

[0004] Therefore, there is an urgent need in the current market for a product with a low price and combining the advantages of existing silicon-free and silicon-containing shampoos. Summary of the Invention

[0005] In view of the problems existing in the prior art, the first object of the present invention is to provide a silicon-free shampoo modified based on a woody oil composition. Based on the synergistic effect among the components, this silicon-free shampoo meets the diverse requirements of washing and caring in one. Among them, while the woody oil composition realizes brightening and softening the hair quality, it can also be directly absorbed by the scalp, improve the antioxidant property of the hair strands, and avoid accumulation on the surface of the scalp and hair strands. After further combining with the surfactant composition, its deep cleaning ability is greatly increased, the number of rinsing times is reduced, and the absorption efficiency of the scalp for the woody oil composition is improved, thereby effectively solving the technical problems such as incomplete cleaning of silicon-free shampoo and dry and dull hair strands in the prior art.

[0006] The second object of the present invention is to provide a preparation method of a silicon-free shampoo modified based on a woody oil composition. Based on the synergistic effect among the steps, the process parameters of each step are strictly controlled, effectively ensuring the uniformity of the shampoo. Among them, after emulsification, the woody oil composition can increase the contact area and dispersion degree of the woody oil composition particles, and then add it to the surfactant solution, where it partially chelates with the surfactant, so that it is more stably dispersed in the shampoo. Also, when in use, the woody oil composition can fully and closely contact with the hair fibers along with the shampoo, ensuring that the active ingredients such as unsaturated fatty acids and various vitamins contained therein quickly penetrate into the hair strands, precisely and efficiently nourish the hair follicles, repair damaged hair quality, and strengthen the antioxidant performance of the hair.

[0007] To achieve the above technical object, the present invention provides a silicon-free shampoo modified based on a woody oil composition, which includes the following components in parts by mass: 8 - 12 parts of the woody oil composition, 35 - 45 parts of the surfactant composition, and 0.5 - 1.5 parts of the thickener;

[0008] The woody oil composition is composed of the following components in parts by mass: 30 - 40 parts of tea seed extract, 20 - 30 parts of walnut oil extract, and 30 - 40 parts of macadamia nut oil;

[0009] The surfactant composition contains sodium lauryl polyether sulfate and cocamidopropyl betaine, and the mass ratio of the two is 3 - 4:1.

[0010] Based on the synergistic effect among the components, the woody oil composition provided by the present invention realizes the diverse functions of washing and caring in one. Among them, the main function of the tea seed extract is to enhance the antioxidant property and cleaning ability of the system, protecting the hair strands from free radical damage. The walnut oil extract enhances the glossiness of the hair strands through high contents of linoleic acid and vitamin E. The macadamia nut oil is rich in palmitoleic acid, which is similar to the human sebum structure. While improving the softness of the hair strands, it is easy to absorb and avoid blocking the hair follicles of the hair strands after long-term use.

[0011] It should be noted that the ratio between the components of the woody oil composition must be strictly implemented in accordance with the above requirements. Too little tea seed extract will lead to oil residue and increased dandruff, while too much will lead to over-cleaning and dry hair. Too little walnut oil extract will cause dull hair, while too much will greatly increase the viscosity of the system and make rinsing difficult. Too little macadamia nut oil will cause rough hair and reduced smoothness, while too much will make the composition difficult to emulsify, and even cause product stratification in severe cases.

[0012] As a preferred solution, the silicone-free shampoo further comprises 0.5-1% by mass of plant essential oil.

[0013] As a preferred solution, the plant essential oils include lavender essential oil, rosemary essential oil and tea tree essential oil.

[0014] As a preferred solution, the stabilizer is phenoxyethanol and / or caprylyl glycol.

[0015] As a preferred solution, the surfactant composition further comprises the following components in percentage by weight of the shampoo: 1-3% of a zwitterionic surfactant and 0.5-1.5% of a nonionic surfactant.

[0016] As a preferred solution, the zwitterionic surfactant is hydroxysulfobetaine.

[0017] As a preferred solution, the nonionic surfactant is an alkyl glycoside.

[0018] In the surfactant composition provided by the present invention, the anionic surfactant is dominant in cleaning, the zwitterionic surfactant can effectively reduce the irritation, and the nonionic surfactant is combined to assist in stabilization, thereby finally achieving the comprehensive effect of "strong cleaning + low residue + high softness"; in addition, when AES and CAB are compounded at a mass ratio of 3 to 4:1, the charge interaction between anions and zwitterions can be used to form a micelle structure, which effectively improves the oil encapsulation ability, while APG and non-polar woody oil can be combined through hydrophobic interaction, thereby promoting uniform dispersion of the oil.

[0019] As a preferred solution, the particle size distribution D90 of the woody oil composition is less than 5 μm.

[0020] As a preferred solution, the silicon-free shampoo further comprises a pH regulator, citric acid, to adjust the pH of the system to 5.5-6.5.

[0021] As a preferred solution, the thickener is xanthan gum and / or guar gum.

[0022] As a preferred embodiment, the preparation process of the tea seed extract is as follows: rapeseed is successively obtained by low-temperature drying, pulverization, Soxhlet extraction with n-hexane, and silica gel column chromatography, wherein the Soxhlet extraction temperature is 60-70°C and the time is 4-6h.

[0023] As a preferred embodiment, the preparation process of the walnut oil extract is as follows: the walnut kernels are pressed and then obtained by supercritical CO2 extraction, wherein the extraction pressure is 25-35MPa and the temperature is 40-50°C.

[0024] As a preferred embodiment, the preparation process of the macadamia nut oil is as follows: it is obtained by cold pressing-enzymatic hydrolysis, wherein the pH during enzymatic hydrolysis is 4.5-5.5, the temperature is 37-45°C, and the enzymatic hydrolysis time is 2-3h.

[0025] As a preferred embodiment, when the silicon-free shampoo is at 20-30°C, the viscosity is 1500-3000 cP.

[0026] The present invention also provides a preparation method of a silicon-free shampoo modified based on a woody oil composition, comprising:

[0027] Step S1: Each component in the surfactant composition is successively and uniformly dispersed in water to obtain a clear and transparent surfactant solution;

[0028] Step S2: Each component in the woody oil composition is mixed and then uniformly emulsified, and then added to the surfactant solution under stirring to obtain a preliminary mixture;

[0029] Step S3: The remaining components of the silicon-free shampoo are successively added to the preliminary mixture and uniformly dispersed to obtain a shampoo precursor;

[0030] Step S4: The shampoo precursor is successively subjected to vacuum degassing and filtration, and the filtrate is collected to obtain the product.

[0031] As a preferred embodiment, the preparation process conditions of the surfactant solution are: the temperature is 40-50°C and the stirring rate is 300-500 rpm.

[0032] As a preferred embodiment, the process of uniform emulsification is: emulsification is carried out using an ultrasonic oscillator, the oscillation frequency is 20-30 kHz, and the time is 5-10 min.

[0033] As a preferred embodiment, the stirring condition in Step S2 is: the stirring rate is 100-200 rpm.

[0034] As a preferred embodiment, in Step S3, when adding the thickener in the remaining components, the stirring rate is 800-1000 rpm and the time is 10-15 min.

[0035] As a preferred solution, in step S3, when adding the stabilizer to the remaining components, the stirring rate is 100 - 150 rpm and the time is 5 - 10 min. When adding the stabilizer, the stirring process needs to be kept at a uniform and slow speed. The purpose is to enable the stabilizer to be fully and evenly dispersed in the whole system. If the stirring is too fast, local eddies are likely to form, resulting in uneven distribution of the stabilizer, inability to inhibit bacteria comprehensively, possible growth of microorganisms in some areas, and affecting the product shelf life and quality stability.

[0036] As a preferred solution, the conditions for vacuum degassing are: the vacuum degree is -0.08 to -0.1 MPa and the time is 10 - 15 min. In the present invention, the vacuum degassing process needs to be strictly carried out in accordance with the above requirements. The requirement for the vacuum degree is to create a low-pressure environment to ensure that the tiny bubbles originally dissolved or entrained in the system can expand and escape quickly. If the vacuum degree is insufficient, the bubble removal rate will be slow and incomplete. During subsequent storage, the bubbles in the product will accumulate, leading to adverse phenomena such as product layering and turbidity, seriously affecting its performance.

[0037] As a preferred solution, the filtration process is as follows: the pore size of the filter membrane is 0.2 - 0.45 μm and the filtration pressure is 0.1 - 0.3 MPa. The filtration process in the present invention needs to be strictly carried out in accordance with the above requirements. Among them, the pore size of the filter membrane can effectively filter the fine particles of undissolved raw materials and accidentally mixed impurity particles during the production process, ensuring the product is clear, transparent, and has a delicate and uniform texture. The regulation of the pressure is directly related to the yield of good products. If the pressure is too low, the filtration will be slow and inefficient, while if the pressure is too high, there is a high probability that the filter membrane will be damaged, resulting in filtration failure and reduced product quality.

[0038] Compared with the prior art, the beneficial technical effects of the technical solution of the present invention are as follows:

[0039] 1) The silicone-free shampoo provided by the present invention, based on the synergistic effect between various components, meets the diverse requirements of washing and caring in one. Among them, the woody oil composition can achieve brightening and softening the hair quality while being directly absorbed by the scalp. While improving the antioxidant property of the hair strands, it will not accumulate on the surface of the scalp and hair strands. After further combining with the surfactant composition, its deep cleaning ability is greatly increased, the number of rinsing times is reduced, and the absorption efficiency of the scalp for the woody oil composition is improved, thereby effectively solving the technical problems such as incomplete cleaning and dry and dull hair strands in the prior art.

[0040] 2) In the preparation method provided by the present invention, based on the synergy between steps, the process parameters of each step are strictly controlled, effectively ensuring the uniformity of the shampoo. Among them, after emulsification, the contact area and dispersion degree of the woody oil composition particles can be increased. Then, it is added to the surfactant solution and partially chelated with the surfactant, so that it can be more stably dispersed in the shampoo. Also, when in use, the woody oil composition can be in full and close contact with the hair fibers along with the shampoo, ensuring that the active ingredients such as unsaturated fatty acids and various vitamins contained in it can quickly penetrate into the hair strands, precisely and efficiently nourish the hair follicles, repair damaged hair quality, and enhance the antioxidant performance of the hair. Detailed Embodiments

[0041] To facilitate the understanding of the present invention, the following will describe the present invention more comprehensively and meticulously in combination with preferred embodiments. It should be noted that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0042] Example 1

[0043] This example provides a modified silicone-free shampoo based on a woody oil composition, and its specific process is as follows:

[0044] 1. Accurately weigh 35 g of camellia seed extract, 25 g of walnut oil extract, and 35 g of macadamia nut oil extract for standby;

[0045] 2. Measure 12 g of sodium lauryl polyether sulfate (AES), slowly sprinkle it into 500 ml of warm water at 45°C, and simultaneously turn on the electric stirrer to maintain uniform stirring at 400 r / min until the AES is completely dissolved, and the solution is clear and transparent without particle suspension. Then, add 4 g of coconut amide propyl betaine (CAB), 2 g of hydroxysulfobetaine, and 1 g of alkyl polyglycoside in sequence, and continue stirring for 18 minutes to obtain a surfactant composition;

[0046] 3. In another clean container, mix the prepared woody oil extract with 0.3 g of lavender essential oil, 0.3 g of rosemary essential oil, and 0.4 g of tea tree essential oil, place it in an ultrasonic oscillator, set the frequency to 25 kHz, and process for 8 minutes. After emulsification is uniform and the emulsion is delicate without obvious oil beads, slowly pour it into the aforementioned surfactant solution, and control the manual stirring rate at 150 r / min to obtain a preliminary mixture;

[0047] 4. Add 0.2 g of xanthan gum and 0.1 g of guar gum to the preliminary mixture. Start the high-speed stirrer, adjust it to 900 r / min, stir for 12 minutes, then add the citric acid solution to adjust the pH of the system to 6.0. Then add 0.5 g of phenoxyethanol and 0.3 g of caprylyl glycol, and stir for 8 minutes to obtain the shampoo precursor;

[0048] 5. Transfer the shampoo precursor to a vacuum degassing device, set the vacuum degree to -0.09 MPa, degas for 12 minutes, and then filter through a 0.3 μm microporous filter membrane while maintaining the pressure at 0.2 MPa. Collect the filtrate to obtain the product.

[0049] Example 2

[0050] This example is exactly the same as Example 1, except that the amount of camellia seed extract is 32 g.

[0051] During the preparation of this example, due to the reduction of camellia seed extract, a slight decrease in the emulsion stability was found during the emulsification process, but the subsequent steps proceeded normally.

[0052] Example 3

[0053] This example is exactly the same as Example 1, except that the amount of sodium lauryl polyether sulfate is increased to 13 g.

[0054] During the preparation of this example, due to the increase in the amount of AES, the stirring time was extended by 10 min, and the foaming was more abundant.

[0055] Example 4

[0056] This example is exactly the same as Example 1, except that the walnut oil extract is 22 g and the macadamia nut oil extract is 358 g.

[0057] Example 5

[0058] This example is exactly the same as Example 1, except that the amounts of the thickeners xanthan gum and guar gum are 0.25 g and 0.15 g respectively.

[0059] During the preparation of this example, due to the adjustment of the amount of the thickener, the rate of increase in the solution viscosity was faster, and the high-speed stirring time could be appropriately extended by 2 - 3 min.

[0060] Example 6

[0061] This example is exactly the same as Example 1, except that the zwitterionic surfactant hydroxy sulfobetaine is added to 7 g.

[0062] During the preparation of this example, due to the increase in the addition amount of hydroxy sulfobetaine, the solution was smoother during the re-stirring process.

[0063] Example 7

[0064] This example is exactly the same as Example 1, except that it contains 0.4 g of lavender essential oil, 0.3 g of rosemary essential oil and 0.3 g of tea tree essential oil.

[0065] Example 8

[0066] This example is exactly the same as Example 1, except that when emulsifying the woody oil extract and plant essential oil, the frequency of the ultrasonic oscillator is adjusted to 25 kHz and the treatment time is extended to 10 minutes.

[0067] Example 9

[0068] This example is exactly the same as Example 1, except that the vacuum degassing duration is increased to 18 minutes and the vacuum degree is adjusted to -0.09 MPa.

[0069] Comparative Example 1

[0070] This comparative example is a common shampoo containing silicone oil (Head & Shoulders anti-dandruff shampoo).

[0071] Comparative Example 2

[0072] This comparative example is exactly the same as Example 1, except that the woody oil composition is not added.

[0073] In order to more intuitively reflect the comprehensive performance of the products provided in the above examples and comparative examples, a sensory experiment was conducted in the present invention. After randomly dividing 50 volunteers into groups, the above products were used 3 times a week for 4 weeks, and a comprehensive score was given from four dimensions: hair softness, greasiness, dandruff amount and scalp comfort, with a full score of 10 points. Among them, the higher the scores of softness and scalp comfort, the better, and the lower the scores of greasiness and dandruff amount, the better. The final results are shown in Table 1.

[0074]

[0075] As can be seen from Table 1, after long-term use of the shampoos obtained in Examples 1-9, the hair softness score ≥ 8.0 points, the scalp comfort ≥ 7.6 points, the greasiness ≤ 2.4, and the dandruff amount ≤ 1.4. There are obvious optimizations compared with the products obtained in Comparative Example 1 and Comparative Example 2, showing excellent comprehensive effects.

Claims

1. A silicon-free shampoo modified based on a woody oil composition, characterized in that: It comprises the following components in parts by mass: 8 - 12 parts of woody oil composition, 35 - 45 parts of surfactant composition, and 0.5 - 1.5 parts of thickener; The woody oil composition consists of the following components in parts by mass: 30 - 40 parts of tea seed extract, 20 - 30 parts of walnut oil extract, and 30 - 40 parts of macadamia nut oil; The surfactant composition contains sodium lauryl polyether sulfate and cocoamidopropyl betaine, and the mass ratio of the two is 3 - 4:

1.

2. The modified silicon-free shampoo based on the woody oil composition according to claim 1, wherein: The surfactant composition also includes the following components by mass percentage of the shampoo: 1 - 3% of zwitterionic surfactant and 0.5 - 1.5% of nonionic surfactant; the zwitterionic surfactant is hydroxysultaine; the nonionic surfactant is alkyl polyglycoside.

3. The modified silicon-free shampoo based on a woody oil composition according to claim 1, wherein: The particle size distribution D90 of the woody oil composition is less than 5 μm; the silicone-free shampoo also includes citric acid as a pH regulator to adjust the system pH to 5.5 - 6.5; the thickener is xanthan gum and / or guar gum.

4. The modified silicon-free shampoo based on the woody oil composition according to claim 1, characterized in that: The preparation process of the tea seed extract is as follows: rapeseed is successively obtained by low-temperature drying, pulverization, Soxhlet extraction with n-hexane, and silica gel column chromatography, where the Soxhlet extraction temperature is 60 - 70 °C and the time is 4 - 6 h.

5. The modified silicon-free shampoo based on the woody oil composition according to claim 1, characterized in that: The preparation process of the walnut oil extract is as follows: obtained by pressing walnut kernels and then supercritical CO2 extraction, where the extraction pressure is 25 - 35 MPa and the temperature is 40 - 50 °C.

6. The a silicon-free shampoo modified based on a woody oil composition according to claim 1, wherein: The preparation process of the macadamia nut oil is as follows: obtained by cold pressing - enzymatic hydrolysis, where the pH during enzymatic hydrolysis is 4.5 - 5.5, the temperature is 37 - 45 °C, and the enzymatic hydrolysis time is 2 - 3 h.

7. A silicone-free shampoo modified based on a woody oil composition according to any one of claims 1 to 6, characterized in that: The silicone-free shampoo has a viscosity of 1500 - 3000 cP at 20 - 30 °C.

8. A preparation method of a silicon-free shampoo modified based on a woody oil composition according to any one of claims 1 to 7, characterized in that, It includes: Step S1: The components in the surfactant composition are successively and uniformly dispersed in water to obtain a clear and transparent surfactant solution; Step S2: The components in the woody oil composition are mixed and uniformly emulsified, and then added to the surfactant solution under stirring to obtain a preliminary mixture; Step S3: The remaining components of the silicone-free shampoo are successively added to the preliminary mixture and uniformly dispersed to obtain a shampoo precursor; Step S4: The shampoo precursor is successively subjected to vacuum degassing and filtration, and the filtrate is collected to obtain the product.

9. The preparation method of a silicon-free shampoo modified based on a woody oil composition according to claim 7, characterized in that: The preparation process conditions of the surfactant solution are: the temperature is 40 - 50 °C, and the stirring rate is 300 - 500 rpm; the process of uniform emulsification is: emulsification is carried out using an ultrasonic oscillator, the oscillation frequency is 20 - 30 kHz, and the time is 5 - 10 min; the stirring condition in Step S2 is: the stirring rate is 100 - 200 rpm.

10. The preparation method of a silicon-free shampoo modified based on a woody oil composition according to claim 7, characterized in that: The conditions of the vacuum degassing are: the vacuum degree is -0.08 - -0.1 MPa, and the time is 10 - 15 min; the process of filtration is: the pore size of the filter membrane is 0.2 - 0.45 μm, and the filtration pressure is 0.1 - 0.3 MPa.

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