Silicon-free hair care composition added with water-in-oil emulsifier and preparation method of silicon-free hair care composition

Abstract

The invention relates to the field of daily chemicals, and provides a silicon-free hair care composition added with a water-in-oil emulsifier, which comprises a cationic conditioner, the water-in-oil emulsifier, an oil-in-water emulsifying thickener, a grease conditioner, a humectant and pure water, the water-in-oil emulsifier is prepared from PEG-30 (Polyethylene Glycol) dipolyhydroxy stearate; the oil-in-water emulsifying thickener comprises one or more of hexadecanol, octadecanol and cetostearyl alcohol. According to the silicon-free hair care composition disclosed by the invention, the water-in-oil emulsifier is added into an oil-in-water system to form a similar water-in-oil-in-water composite system, and compared with an oil-in-water system of a common single emulsifier, the silicon-free hair care composition disclosed by the invention can emulsify grease into fine and uniform micro-droplets, and can better permeate hair and nourish and repair damaged hair without greasy and heavy hair.

Description

Technical Field

[0001] This invention relates to the field of daily chemical products, and specifically to a silicone-free hair care composition with added water-in-oil emulsifier and its preparation method. Background Technology

[0002] In today's fast-paced world, people experience frequent hair damage due to work and life pressures, environmental factors, and frequent hair dyeing and perming. Therefore, hair repair products have gained increasing attention from consumers in recent years.

[0003] Hair care products such as conditioners, hair masks, and deep conditioning treatments have become essential for consumers' daily hair care routines due to their ease of use and effective results. Most of these hair care products are oil-in-water (O / W) emulsions. Products based on cationic surfactants and fatty alcohols, combined with silicone oil conditioning agents, often result in a greasy feel after washing. However, without added silicone oil, their repairing effect is significantly reduced. On the other hand, because silicone oil is non-polar and has low surface tension, it more easily forms small, uniform droplets during emulsification, resulting in a stable emulsion. In contrast, if other light oils and plant oils are used as substitutes, their higher polarity and surface tension may lead to interactions with other components, affecting emulsion stability. Plant oils, in particular, contain unsaturated bonds and are prone to oxidation, thus disrupting the emulsion system. Therefore, developing a new type of hair care product that effectively repairs and nourishes damaged hair while also offering a pleasant user experience and high stability is a problem that developers need to solve and a common expectation of consumers. Summary of the Invention

[0004] The present invention aims to provide a silicone-free hair care composition with added water-in-oil emulsifier and its preparation method, which can effectively repair and nourish damaged hair, and has a good user experience and high stability.

[0005] To address the aforementioned technical problems, this invention provides a silicone-free hair care composition and its preparation method. The raw materials include cationic conditioning agents, water-in-oil emulsifiers, oil-in-water emulsifying thickeners, oil-based conditioning agents, and humectants. This invention creatively develops a silicone-free hair care combination system similar to a water-in-oil-in-water (W / O / W) system. The composition can be applied to hair care products such as conditioners, hair masks, hair treatments, and hair lotions.

[0006] The present invention adopts the following technical solution: A silicone-free hair care composition with added water-in-oil emulsifier, comprising a cationic conditioner, a water-in-oil emulsifier, an oil-in-water emulsifying thickener, an oil-based conditioner, a humectant, and purified water; wherein the water-in-oil emulsifier comprises PEG-30 dihydroxystearate; and the oil-in-water emulsifying thickener comprises one or more of cetyl alcohol, octadecyl alcohol, and cetyloctadecyl alcohol.

[0007] Preferably, the oil-based conditioning agent includes one or more of the following: octyl dodecyl myristate, caprylic / capric triglyceride, diisostearyl malate, isononyl isononanoate, isopropyl palmitate, hydrogenated polyisobutylene, plant squalane, isododecane, sea buckthorn seed oil, macadamia nut oil, shea butter, jojoba seed oil, and camellia seed oil.

[0008] Preferably, the raw materials include the following percentages by weight: The cationic conditioner is 1.5-6; The water-in-oil emulsifier is 0.3~3; The oil-in-water emulsifying thickener 4-9; The oil-based conditioning agent is applied at a concentration of 0.7-6.5%. The humectant is 0.1~5; Pure water balance.

[0009] Preferably, it also includes fragrances and preservatives.

[0010] Preferably, the fragrance in the silicone-free hair care composition with added water-in-oil emulsifier comprises 0.15% to 0.55% by mass; and the preservative in the silicone-free hair care composition with added water-in-oil emulsifier comprises 0.05% to 0.8% by mass.

[0011] Preferably, the cationic conditioning agent includes one or more of the following: polyquaternium salt 6, polyquaternium salt 7, polyquaternium salt 10, polyquaternium salt 11, polyquaternium salt 48, polyquaternium salt 52, stearamide propyl dimethylamine, behenamide propyl dimethylamine, guar hydroxypropyl trimethylammonium chloride, dipalmitoyloxyethyl dimethylammonium chloride, cetearyl trimethylammonium chloride, and behenyl trimethylammonium chloride; the humectant includes one or more of the following: glycerin, propylene glycol, butylene glycol, sorbitol, isopentyl glycol, sodium hyaluronate, and panthenol; the fragrance includes daily-use fragrances; and the preservative includes one or more of the following: phenoxyethanol, Kathon, methylparaben, and propylparaben.

[0012] A method for preparing the above-mentioned silicone-free hair care composition with added water-in-oil emulsifier includes the following steps: A. Add the cationic conditioner, humectant and pure water to a water pot, stir and heat to obtain phase A; B. Add the oil-based conditioning agent and the oil-in-water emulsifying thickener to phase A, keep warm, then vacuum and homogenize to obtain phase B; C. Cool the B phase, then add the water-in-oil emulsifier, maintain vacuum and homogenize to obtain the C phase; D. Cool the C phase, then add preservatives and fragrances, stir evenly, and obtain the hair care composition with added water-in-oil emulsion.

[0013] Preferably, in step A, the heating temperature is 80~85℃; in step B, the heat preservation temperature is 80~85℃, and the heat preservation time is 25~40 minutes; in step B, the vacuum degree of the vacuuming is -0.02~-0.06Mpa; in step B, the homogenization includes external circulation homogenization, the homogenization speed is 3000~4000 rpm, and the homogenization time is 5~8 minutes; in step C, the cooling temperature is 70±2℃; in step D, the homogenization includes external circulation homogenization, the homogenization speed is 2500~3500 rpm, and the homogenization time is 5~8 minutes; and in step D, the cooling temperature is 40~45℃.

[0014] An application of the above-mentioned silicone-free hair care composition with added water-in-oil emulsifier for hair care.

[0015] Preferably, it is used for one or more of the following: improving wet hair combing, improving wet hair tangles, improving dry hair combing, and improving dry hair tangles.

[0016] Compared with the prior art, implementing the present invention has the following beneficial effects: 1. The silicone-free hair care composition of the present invention adds an oil-in-water emulsifier to an oil-in-water system to form a composite system similar to an oil-in-water emulsion. Compared with the ordinary oil-in-water system with a single emulsifier, it can emulsify oil into fine and uniform microdroplets, which can better penetrate the hair strands and nourish and repair damaged hair without being greasy or heavy.

[0017] 2. The preferred oil-in-water emulsifier of this invention is PEG-30 dihydroxystearate, which works in conjunction with the oil-in-water emulsifying thickener to give the system an optimal HLB value. The oil-in-water emulsifying thickener constructs a connection channel between the oil and PEG-30 dihydroxystearate, successfully encapsulating the oil in the inner and outer water layers and achieving good dispersion. This allows for the preparation of emulsions or creams with high internal phase content and high stability.

[0018] 3. The composition of this invention uses skin-care grade oils instead of conventional silicone oils to nourish hair strands, allowing for more effective penetration into the hair strands, nourishing the scalp, and protecting hair health.

[0019] 4. The preparation process of this invention is simple, which is different from the preparation methods of multiple dispersed phases of water-in-oil-in-water in the prior art. The preparation process of this invention is simple, efficient and controllable, and suitable for mass production. Attached Figure Description

[0020] Figure 1 This is a microscopic observation (50X objective lens) result of Embodiment 1 of the present invention; Figure 2 This is a microscopic observation (50X objective) of a traditional hair conditioner. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments.

[0022] The following are non-limiting examples of the shampoo compositions of the present invention. These examples are given for illustrative purposes only and should not be construed as limiting the invention, as many changes can be made to the invention without departing from its spirit and scope.

[0023] Example The components are shown in Table 1, which is a formulation table of five embodiments of a hair care composition with added water-in-oil emulsion (unless otherwise specified, the units are parts by weight).

[0024] Table 1

[0025] The preparation process of Examples 1-5 includes the following steps: A. Add panthenol, glycerol, guar hydroxypropyltrimethylammonium chloride, cetearyltrimethylammonium chloride, dipalmitoyloxyethyldimethylammonium chloride and pure water into a water pot, stir and heat to 80~85℃ to obtain phase A; B. Add hexadecyl alcohol, sea buckthorn seed oil, shea butter, octyl dodecyl myristate, and plant squalane to phase A, keep warm at 80~85℃ for 25~40 minutes, then apply vacuum (vacuum degree -0.02~-0.06 MPa), homogenize with external circulation for 5~8 minutes at a homogenization speed of 3000~400 rpm to obtain phase B; C. Cool phase B to 70±2℃, then add PEG-30 dimer hydroxystearate, maintain vacuum (vacuum degree -0.02~-0.06 MPa) and perform external circulation homogenization for 5~8 minutes at a homogenization speed of 2500~3500 rpm to obtain phase C; D. Cool phase C to 40~45℃, then add preservatives and fragrances, stir evenly, and obtain a hair care composition with added water-in-oil emulsion.

[0026] Comparative example: Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that the water-in-oil emulsifier in Example 1 is changed.

[0027] PEG-30 dihydroxystearate was replaced with sorbitan oleate, and the remaining components and preparation process were the same as in Example 1.

[0028] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that the water-in-oil emulsifier PEG-30 dihydroxystearate in Example 1 is omitted, while the remaining components and preparation process are the same as in Example 1.

[0029] Comparative Example 3 The difference between Comparative Example 3 and Example 1 is that the humectant used in Example 1 is omitted and replaced with pure water. The remaining components and preparation process are the same as in Example 1.

[0030] Comparative Example 4 The difference between Comparative Example 4 and Example 1 is that the oil-based conditioning agent in Example 1 is replaced with polydimethylsiloxane, while the remaining components and preparation process are the same as in Example 1.

[0031] Comparative Example 5 A commercially available silicone-free conditioner, a certain brand of smoothing conditioner.

[0032] Comparative Example 6 A commercially available hair mask containing silicone oil, and a luxurious fragrance-infused hair mask from a certain brand.

[0033] Comparative Example 7 Comparative Example 7 has the same components and proportions as Example 1, except that the preparation method is replaced with a traditional emulsion preparation process, including the following operations: 1. Mix panthenol, glycerol, and some water until homogeneous, and heat to 80-85℃ to obtain phase A; 2. Mix and disperse PEG-30 dihydroxystearate, sea buckthorn seed oil, shea butter, octyl dodecyl myristate, and plant squalane evenly, and heat to 80~85℃ to form phase B; 3. Mix and disperse guar gum hydroxypropyltrimethylammonium chloride, cetearyltrimethylammonium chloride, dipalmitoyloxyethyldimethylammonium chloride, cetearyl alcohol and the remaining water evenly, and heat to 80~85℃ to form phase C; 4. Slowly add phase A material to phase B, turn on homogenization and vacuum, homogenization speed 2500~3500 rpm, vacuum degree -0.02~-0.08 MPa, homogenization time 3~5 minutes; 5. After homogenization, add the paste to phase C, turn on homogenization and vacuum, homogenize at 2500~3500 rpm, vacuum at -0.02~-0.08 MPa, and homogenize for 3~5 minutes; 6. Cool to 40~45℃, add preservatives and fragrances, stir well to form the hair care composition of Comparative Example 7.

[0034] Example 1 High and low temperature stability test The samples from the examples and comparative examples were subjected to high and low temperature tests at -20℃ and 48℃, respectively, for a period of 45 days. Samples were considered stable if they did not separate into layers, separate into water, or produce sediment during the test period; otherwise, they were considered unstable. The test results are shown in Table 2. Table 2

[0035] Therefore, it is evident that the substitution and omission of the water-in-oil emulsifier in Comparative Examples 1 and 2 both resulted in system instability, indicating that the water-in-oil emulsifier of this invention plays a crucial role in system stability. Comparative Example 7, prepared using a conventional water-in-oil process, exhibited system instability during the testing period, making subsequent experiments difficult to conduct smoothly.

[0036] Example 2 Dynamic hair combing test: Testing instruments: Instron 2343 electronic universal testing machine, hair comb fixing device (bracket), hair bundle fixing device (suspension), Instron LLC Test Principle: The hair combability test simulates the process of combing hair with a comb using a combing instrument, whether the hair is dry or wet. The changes in frictional resistance during the combing process are recorded to characterize the smoothness effect of the product. In this test, the hair strands pass through the comb on the combing instrument at the same speed, and the combing force (or combing work) is calculated based on the data.

[0037] Test method: Fix the treated hair strands at the test position of the universal testing machine. Use dry hair strands without any product as blank control. Test the wet combing performance of the hair when the sample is used and the dry combing performance of the sample after using conditioner. Test each group of samples 10 times and take the average value.

[0038] Test parameters: 1. Blank: Hair strands and combing performance not treated with the sample (mJ); 2. Sample: Hair strands treated with the sample and combing technique (mJ); 3. Remaining %: The ratio of the test data after sample use to the test data before use. The lower the remaining value, the better the combing performance.

[0039] The specific test results are shown in Table 3: Table 3

[0040] As can be seen from the table, the remaining combing power values ​​of wet and dry hair in Examples 1-5 are generally lower than those of the comparative examples, and can even be comparable to those of Comparative Examples 4 and 6, which contain silicone oil, indicating that the present invention has good combing performance.

[0041] Example 3 Moisture content test of hair strands Population survey Samples from Examples 1-5 and Comparative Examples 3-6 were distributed to 30 subjects. Before use, hair was cleaned with shampoo. An appropriate amount of each sample was applied to the hair roots, followed by rinsing with water. The samples were used every other day for one week. A 10-point scoring system was used, with 1 point representing the worst effect and 10 points representing the best effect. The average score of the 30 subjects was then calculated, with higher scores indicating better results. The obtained data are shown in Table 4.

[0042] Table 4

[0043] As can be seen from the table above, the evaluation shows that the embodiments of the present invention have significant advantages over the comparative examples. They can nourish and repair hair, and are more refreshing, non-sticky, and less heavy than those containing silicone oil.

[0044] Example of effect 4 Microscopic observation experiment Using Example 1 and Comparative Example 5 as examples, microscopic observation experiments were conducted. The results of observing the composition of the present invention (Example 1) under an optical microscope are as follows: Figure 1 As shown, the results of observing traditional hair care products (Comparative Example 5) under an optical microscope are as follows: Figure 2 As shown. As can be seen, under a microscope, traditional hair conditioner contains oil droplets of varying sizes, while the present invention produces a uniform emulsion distribution.

[0045] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A silicone-free hair care composition with added water-in-oil emulsifier, characterized in that, It includes cationic conditioning agents, water-in-oil emulsifiers, oil-in-water emulsifying thickeners, oil-based conditioning agents, humectants, and purified water; the water-in-oil emulsifier includes PEG-30 dihydroxystearate; the oil-in-water emulsifying thickener includes one or more of cetyl alcohol, octadecyl alcohol, and cetyloctadecyl alcohol.

2. The silicone-free hair care composition with added water-in-oil emulsifier as described in claim 1, characterized in that, The oil-based conditioning agents include one or more of the following: octyl dodecyl myristate, caprylic / capric triglyceride, diisostearyl malate, isononyl isononanoate, isopropyl palmitate, hydrogenated polyisobutylene, plant squalane, isododecane, sea buckthorn seed oil, macadamia nut oil, shea butter, jojoba seed oil, and camellia seed oil.

3. The silicone-free hair care composition with added water-in-oil emulsifier as described in claim 1, characterized in that, The raw materials include the following percentages by weight: The cationic conditioner is 1.5-6; The water-in-oil emulsifier is 0.3~3; The oil-in-water emulsifying thickener 4-9; The oil-based conditioning agent is applied at a concentration of 0.7-6.5%. The humectant is 0.1~5; Pure water balance.

4. The silicone-free hair care composition with added water-in-oil emulsifier as described in claim 1, characterized in that, It also includes fragrances and preservatives.

5. The silicone-free hair care composition with added water-in-oil emulsifier as described in claim 4, characterized in that, The fragrance in the silicone-free hair care composition with added water-in-oil emulsifier comprises 0.15% to 0.55% by mass; the preservative in the silicone-free hair care composition with added water-in-oil emulsifier comprises 0.05% to 0.8% by mass.

6. The silicone-free hair care composition with added water-in-oil emulsifier as described in claim 4, characterized in that, The cationic conditioning agents include one or more of the following: polyquaternium salt 6, polyquaternium salt 7, polyquaternium salt 10, polyquaternium salt 11, polyquaternium salt 48, polyquaternium salt 52, stearamide propyl dimethylamine, behenamide propyl dimethylamine, guar hydroxypropyl trimethylammonium chloride, dipalmitoyloxyethyl dimethylammonium chloride, cetearyl trimethylammonium chloride, and behenyl trimethylammonium chloride; the humectants include one or more of the following: glycerin, propylene glycol, butylene glycol, sorbitol, isopentyl glycol, sodium hyaluronate, and panthenol; the fragrances include daily-use fragrances; and the preservatives include one or more of the following: phenoxyethanol, Kathon, methylparaben, and propylparaben.

7. A method for preparing a silicone-free hair care composition with added water-in-oil emulsifier as described in claim 1, characterized in that, Includes the following steps: A. Add the cationic conditioner, humectant and pure water to a water pot, stir and heat to obtain phase A; B. Add the oil-based conditioning agent and the oil-in-water emulsifying thickener to phase A, keep warm, then vacuum and homogenize to obtain phase B; C. Cool the B phase, then add the water-in-oil emulsifier, maintain vacuum and homogenize to obtain the C phase; D. Cool the C phase, then add preservatives and fragrances, stir evenly, and obtain the hair care composition with added water-in-oil emulsion.

8. The preparation method according to claim 7, characterized in that, In step A, the heating temperature is 80~85℃; in step B, the heat preservation temperature is 80~85℃, and the heat preservation time is 25~40 minutes; in step B, the vacuum degree of the vacuuming is -0.02~-0.06 MPa; in step B, the homogenization includes external circulation homogenization, the homogenization speed is 3000~4000 rpm, and the homogenization time is 5~8 minutes; in step C, the cooling temperature is 70±2℃; in step C, the homogenization includes external circulation homogenization, the homogenization speed is 2500~3500 rpm, and the homogenization time is 5~8 minutes; in step D, the cooling temperature is 40~45℃.

9. The application of a silicone-free hair care composition with added water-in-oil emulsifier as described in claim 1, characterized in that, Used for hair care.

10. The application as described in claim 9, characterized in that, Used for one or more of the following: improving wet hair combing, improving wet hair tangles, improving dry hair combing, and improving dry hair tangles.

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