Silicone oil-free and cationic polymer-free hair and bath product as well as preparation method and application thereof

Abstract

The invention relates to a silicone-oil-free and cationic-polymer-free hair and bath product as well as a preparation method and application thereof, and belongs to the technical field of cosmetic washing and care. The hair and bath product comprises the following components in percentage by weight: 8-21% of a surfactant, 5.1-9.5% of a conditioner and the balance of water, the conditioner is prepared from PEG-7 (Polyethylene Glycol) glyceryl cocoate, trehalose, beta-glucan and a Chinese soapberry fruit extract. According to the invention, PEG-7 glyceryl oleate, trehalose, beta-glucan and soapberry extract are used as conditioning agents to replace conditioning agents such as a cationic polymer and emulsified silicone oil, a moderate hair conditioning effect is provided, the irritation of the cationic polymer is not brought, and the negative effect that the emulsified silicone oil blocks pores is also not brought. The shampoo and bath product containing the conditioner is good in conditioning effect, small in irritation and suitable for sensitive skin crowds such as infants and children; the preparation method of the hair and bath product is simple, and industrial production, popularization and application are facilitated.

Description

Technical Field

[0001] This invention relates to the field of cosmetics and personal care technology, and in particular to a silicone-free and cationic polymer-free shampoo and body wash product, its preparation method, and its application. Background Technology

[0002] Infants and toddlers often undergo shampooing and bathing simultaneously. A shampoo and body wash with good skin and hair conditioning properties can reduce the time and effort adults spend caring for infants and toddlers. Common shampoos on the market contain silicone oil or cationic polymers as hair conditioning agents. However, adding silicone oil and cationic conditioning agents to infant shampoos and body washes can cause clogged pores and irritation. Therefore, most infant shampoos and body washes on the market address this issue by eliminating silicone oil and adding a small amount of cationic polymers. Because of their ionic properties, cationic polymers cannot be completely rinsed off and can remain on the scalp, clogging hair follicles and leading to itchy scalp, dandruff, and hair loss. Furthermore, cationic polymers may irritate the eyes and skin, especially for sensitive skin. Since infants' scalps and skin are delicate and sensitive, it is necessary to develop shampoos and body washes specifically for infants and other people with sensitive skin that are free of both silicone oil and cationic polymers. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a silicone-free and cationic polymer-free shampoo and body wash product, its preparation method and application, so as to achieve gentle cleansing of the skin and hair of sensitive skin groups such as infants and children, without causing silicone oil to clog pores or cationic polymer to irritate the skin, and with good hair conditioning effect.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect, the present invention provides a silicone-free and cationic polymer-free shampoo and body wash product, comprising, by weight percentage, 8%–21% surfactant, 5.1%–9.5% conditioning agent, and the balance being water; the conditioning agent is composed of PEG-7 glyceryl cocoate, trehalose, β-glucan, and Sapindus mukorossi extract, and contains neither silicone oil nor cationic polymers. The silicone-free and cationic polymer-free shampoo and body wash product of the present invention refers to a conditioning agent that does not contain silicone oil or cationic polymers.

[0006] Through extensive testing, the inventors of this application have surprisingly discovered that by combining specific components such as PEG-7 glyceryl cocoate, trehalose, β-glucan, and Sapindus mukorossi extract within a specific weight range as conditioning agents, a shampoo and body wash with excellent hair conditioning properties can be prepared. This allows the shampoo and body wash to achieve excellent hair conditioning without adding commonly used conditioning agents such as silicone oil and cationic polymers.

[0007] In a preferred embodiment of the shampoo and body wash product of the present invention, the mass ratio of PEG-7 glyceryl cocoate, trehalose, β-glucan and Sapindus mukorossi extract is (1-5):(0.1-3):(0.001-0.5):(1-5).

[0008] In a preferred embodiment of the shampoo and body wash product of the present invention, the mass ratio of PEG-7 glyceryl cocoate, trehalose, β-glucan and Sapindus mukorossi extract is 3:0.5:0.08:2.

[0009] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 14.5% to 20% surfactant, 5.58% to 6.1% conditioning agent and the balance being water.

[0010] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 14.5% to 17% surfactant, 5.58% conditioning agent and the remainder water.

[0011] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 17% surfactant, 5.58% conditioning agent and the remainder water.

[0012] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 8% to 21% surfactant, 1% to 5% PEG-7 glyceryl cocoate, 0.1% to 3% trehalose, 0.001% to 0.5% β-glucan, 1% to 5% Sapindus mukorossi extract, and the balance being water.

[0013] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 14.5% to 20% surfactant, 3% PEG-7 glyceryl cocoate, 0.5% to 1% trehalose, 0.08% to 0.1% β-glucan, 2% Sapindus mukorossi extract, and the balance being water.

[0014] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 14.5% to 17% surfactant, 3% PEG-7 glyceryl cocoate, 0.5% trehalose, 0.08% β-glucan, 2% Sapindus mukorossi extract, and the balance being water.

[0015] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 17% surfactant, 3% PEG-7 glyceryl cocoate, 0.5% trehalose, 0.08% β-glucan, 2% Sapindus mukorossi extract, and the balance being water.

[0016] In a preferred embodiment of the shampoo and body wash product of the present invention, the surfactant includes at least one of potassium cocoyl hydrolyzed oat protein, cocamidopropyl betaine, decyl glucoside, sodium methyl cocoyl taurate, or sodium lauroyl sarcosinate.

[0017] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product further includes functional additives; the functional additives include preservatives, fragrances, chelating agents, thickeners, etc.

[0018] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 8% to 21% surfactant, 5.1% to 9.5% conditioning agent, 0% to 2% preservative, 0% to 2% fragrance agent, and the balance being water.

[0019] As a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product comprises, by weight percentage, 8% to 21% surfactant, 5.1% to 9.5% conditioning agent, 0.3% preservative, 0.5% fragrance and the balance being water.

[0020] In a preferred embodiment of the shampoo and body wash product of the present invention, the shampoo and body wash product is a shampoo and body wash gel.

[0021] Secondly, the present invention provides a method for preparing the above-mentioned shampoo and body shower product, wherein the components are mixed evenly according to their corresponding weight percentages to obtain the shampoo and body shower product.

[0022] Thirdly, the present invention provides the application of the above-mentioned shampoo and body wash products as bath products for sensitive skin.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] This invention uses PEG-7 glyceryl oleate, trehalose, β-glucan, and Sapindus mukorossi extract as conditioning agents, which can replace cationic polymers and emulsified silicone oils, providing moderate hair conditioning effects without the irritation of cationic polymers or the pore-clogging negative effects of emulsified silicone oils. Shampoo and body wash products prepared using this conditioning agent have good conditioning effects, low irritation, and are suitable for sensitive skin groups such as infants and children. The preparation method of the shampoo and body wash products of this invention is simple, facilitating industrial production and widespread application. Attached Figure Description

[0025] Figure 1 This is a finished product image of the shampoo and body wash according to Embodiment 6 of the present invention. Detailed Implementation

[0026] To better illustrate the purpose, technical solution, and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments.

[0027] Unless otherwise specified, all other materials and reagents used in the examples are commercially available.

[0028] Examples 1-13 and Comparative Examples 1-8

[0029] The components of the shampoos and body washes of Examples 1-13 and Comparative Examples 1-8 are shown in Tables 1-1 and 1-2 below.

[0030] Table 1-1

[0031]

[0032] Table 1-2

[0033]

[0034]

[0035] The preparation method of the shampoo and body wash in Examples 1-13 and Comparative Examples 1-8 is as follows: the components are mixed evenly according to the weight percentage to obtain the shampoo and body wash.

[0036] The finished product image of the shampoo and body wash in Example 6 is shown below. Figure 1 As shown, it is a yellow, transparent, viscous liquid.

[0037] Test Example 1: Conditioning Test

[0038] 1. Conditioning tests were conducted on the shampoos and body washes of the examples and comparative samples using a combing device. The test methods are as follows:

[0039] Wash the hair twice with shampoo and body wash, let it air dry, and then use a combing device (Shanghai Xiangjie, XJ810-100N) to test the combability of the dry hair and calculate the rate of decrease in combing force. The greater the decrease in combing force, the easier the hair is to comb, which proves that the conditioning effect of the shampoo and body wash is better.

[0040] The results of the decrease in combing power of the shampoos and body washes in the examples and comparative examples are shown in Table 2 below.

[0041] Table 2

[0042] Decrease in combing power (%) Decrease in combing power (%) Example 1 35 Example 12 34 Example 2 32 Example 13 33 Example 3 38 Comparative Example 1 18 Example 4 35 Comparative Example 2 18 Example 5 42 Comparative Example 3 20 Example 6 42 Comparative Example 4 19 Example 7 34 Comparative Example 5 21 Example 8 32 Comparative Example 6 41 Example 9 35 Comparative Example 7 39 Example 10 33 Comparative Example 8 26 Example 11 32 / /

[0043] The results in Table 2 show that the combing power of the shampoo and body wash in the examples decreased by 32% to 42%.

[0044] The combing power reduction rate of the shampoos and body washes in Comparative Examples 1-5 was 18%–21%, significantly lower than that in Example 5. This indicates that the combination of the four components of the conditioning agent of the present invention has a synergistic effect. Furthermore, after changing the components of the conditioning agent, the corresponding shampoos and body washes showed an even lower rate of decrease in combing power, meaning less reduction in combing power and a weaker conditioning effect. This demonstrates that only the conditioning agent composed of the specific components of the embodiments of the present invention can achieve a better conditioning effect.

[0045] The combing power reduction rate of the shampoo and body wash in Comparative Example 8 was 26%, which was significantly lower than that in Example 5. This indicates that the amount of the conditioning agent components added exceeded the range of the examples, and the corresponding shampoo and body wash had a lower combing power reduction rate, that is, less reduction in combing power and weaker conditioning effect. This shows that only the conditioning agent of the present invention can have a better conditioning effect within the range of the examples.

[0046] 2. A human sensory conditioning test (wet hair) was conducted on the shampoos and body washes of the examples and comparative examples. The test method is as follows:

[0047] The hair strands were washed twice with shampoo and body wash. While the hair was wet, the testers combed it and assessed its combability, smoothness, and softness. They then scored the hair according to a set of criteria; higher scores indicated better conditioning effects from the shampoo and body wash. The scoring criteria for combability, smoothness, and softness are shown in Table 3 below.

[0048] Table 3

[0049] Sorting Smooth Softness 1-30 points It gets stuck in the comb and is difficult to comb. Rough, with no obvious slippery feel It's quite hard and feels prickly to the touch. 31-60 points Better sorting It feels quite slippery. Relatively soft 61-100 points It's easy to sort out. It has an excellent smooth feel and is quite comfortable. It's very soft and comfortable.

[0050] The scores for combability, smoothness, and softness of wet hair from the examples and comparative shampoos and body washes are shown in Table 4 below.

[0051] Table 4

[0052]

[0053] Table 4 shows that, for wet hair, the shampoo and body wash of the examples are significantly better than Comparative Examples 1-5 and Comparative Example 8 in terms of combability, smoothness, and softness.

[0054] As can be seen from Example 5 and Comparative Examples 1-5, the conditioner combination of the present invention has a synergistic effect; at the same time, the conditioner can only be the specific components of the examples.

[0055] As can be seen from Example 5 and Comparative Example 8, the amount of the components added to the conditioning agent of the present invention can only have a better conditioning effect within the range of the examples.

[0056] 3. A human sensory conditioning test (dry hair) was conducted on the shampoos and body washes of the examples and comparative examples. The test method is as follows:

[0057] The test subject washed the hair strands twice with shampoo and body wash, and then let them air dry naturally. After that, the test subject combed the hair strands to feel the combability, smoothness and softness of the dry hair, and scored them according to the scoring criteria (the scoring criteria are the same as in Table 3 above). The higher the score, the better the conditioning effect of the shampoo and body wash.

[0058] The scores for combability, smoothness, and softness of dry hair from the shampoos and body washes used in the examples and comparative examples are shown in Table 5 below.

[0059] Table 5

[0060]

[0061] Table 5 shows that, for dry hair, the shampoo and body wash of the examples are significantly better than Comparative Examples 1-5 and Comparative Example 8 in terms of combability, smoothness, and softness.

[0062] As can be seen from Example 5 and Comparative Examples 1-5, the conditioner combination of the present invention has a synergistic effect; at the same time, the conditioner can only be the specific components of the examples.

[0063] As can be seen from Example 5 and Comparative Example 8, the amount of the components added to the conditioning agent of the present invention can only have a better conditioning effect within the range of the examples.

[0064] Test Example 2: Physical Performance Test

[0065] Physical performance tests were conducted on the shampoos and body washes of the examples and comparative examples, including appearance, pH value, and stability.

[0066] Appearance: Directly observe the state of the shampoo and body wash.

[0067] pH value determination: The shampoos and body washes of the examples and comparative examples were prepared into 10% aqueous solutions, and the pH value was measured using a pH meter.

[0068] Stability: The shampoos and body washes of the examples and comparative examples were placed in an environment of (40±1)℃ for 24 hours and then allowed to return to room temperature for heat stability testing; they were also placed in an environment of (-8±2)℃ for 24 hours and then allowed to return to room temperature for cold stability testing. After returning to room temperature, the properties of the shampoos and body washes were observed. After returning to room temperature, there was no significant difference in properties between the shampoos and body washes and those before the test, and no oil-water separation phenomenon was observed, indicating that the stability was normal.

[0069] The physical property test results of the shampoos and body washes in the examples and comparative examples are shown in Table 6 below.

[0070] Table 6

[0071]

[0072] Table 6 shows that the shampoo and body wash prepared by this invention is a yellow, transparent, viscous liquid with a pH range of 5.5-6.0. The shampoo and body wash exhibits good cold and heat resistance.

[0073] Test Example 3: Stimulation Test

[0074] The examples and comparative examples were subjected to acute eye irritation tests and acute skin irritation tests in accordance with the requirements of the "Cosmetic Safety Technical Specifications" (2015 edition). The results are shown in Table 7 below.

[0075] Table 7

[0076]

[0077]

[0078] Table 7 shows that the shampoos and body washes of the present invention are all non-irritating.

[0079] Comparative Examples 6 and 7 showed mild or slight irritation, indicating that the presence of cationic polymers such as polyquaternium-10 or emulsified silicone oil in the conditioner would increase the irritation of the shampoo and body wash.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A silicone-free and cationic polymer-free shampoo and body wash product, characterized in that, The product comprises, by weight percentage, 8%–21% surfactant, 5.1%–9.5% conditioning agent, and the balance being water; the conditioning agent is composed of PEG-7 glyceryl cocoate, trehalose, β-glucan, and Sapindus mukorossi extract.

2. The shampoo and body wash product as described in claim 1, characterized in that, The mass ratio of PEG-7 glyceryl cocoate, trehalose, β-glucan and Sapindus mukorossi extract is (1-5):(0.1-3):(0.001-0.5):(1-5).

3. The shampoo and body wash product as described in claim 1, characterized in that, The shampoo and body wash product comprises, by weight percentage, 14.5% to 20% surfactant, 5.58% to 6.1% conditioner, and the remainder being water.

4. The shampoo and body wash product as described in claim 1 or 2, characterized in that, By weight percentage, the shampoo and body wash product comprises 8%–21% surfactant, 1%–5% PEG-7 glyceryl cocoate, 0.1%–3% trehalose, 0.001%–0.5% β-glucan, 1%–5% Sapindus mukorossi extract, and the balance being water.

5. The shampoo and body wash product according to any one of claims 1 to 4, characterized in that, The surfactant includes at least one of the following: potassium cocoyl hydrolyzed oat protein, cocamidopropyl betaine, decyl glucoside, sodium methyl cocoyl taurate, or sodium lauroyl sarcosinate.

6. The shampoo and body wash product according to any one of claims 1 to 5, characterized in that, The shampoo and body wash products also include functional additives.

7. The shampoo and body wash product as described in claim 6, characterized in that, The functional additives include preservatives, fragrances, chelating agents, or thickeners.

8. The shampoo and body wash product as described in claim 7, characterized in that, By weight percentage, the shampoo and body wash product comprises 8% to 21% surfactant, 5.1% to 9.5% conditioner, 0% to 2% preservative, 0% to 2% fragrance, and the remainder water.

9. A method for preparing the shampoo and body wash product according to any one of claims 1 to 8, characterized in that, Mix the components evenly according to their corresponding weight percentages to obtain the shampoo and body wash product.

10. The use of the shampoo and body wash product according to any one of claims 1 to 8 as a body wash product for sensitive skin.

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