Hair care essential oil capable of preventing environmental pollution and damage and preparation method of hair care essential oil

Abstract

The invention discloses hair care essential oil capable of preventing environmental pollution and damage and a preparation method of the hair care essential oil, and belongs to the technical field of preparation of daily chemical products. The hair care essential oil is prepared from the following components in parts by weight: 0.01 to 2 parts of a plant sun-screening agent, 0.01 to 2 parts of a plant antioxidant, 0.01 to 10 parts of vegetable fat, 0.01 to 1 part of keratin, 0.01 to 1 part of tocopheryl acetate, 0.05 to 1 part of essence, 5 to 100 parts of silicone oil and 1 to 100 parts of an oily solvent. According to the invention, various raw materials with different mechanisms are adopted, are reasonably matched and used, have a synergistic effect to play a remarkable effect, are different from common single-effect hair care products in the market, can not only play a hair care and smoothing effect, but also prevent hair damage caused by environmental pollution, and have a wide market prospect.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemical product preparation, in particular to a hair care essential oil capable of preventing environmental pollution damage and a preparation method thereof. Background Art

[0002] As people's quality of life continues to improve, consumers' requirements for daily chemical products are also increasing. Human hair has an important appearance modification function and social attributes, making hair-related daily chemical products attract much attention. Human hair is composed of two parts: the hair shaft and the hair follicle. The hair shaft is mainly composed of three layers from the inside to the outside: the medulla, the cortex, and the cuticle. The main component is keratin, which has different structural functions. The main mechanical effect of hair is composed of the cuticle and the medulla. The cuticle is mainly composed of 18-MEA layers combined with surface proteins and layers of corrugated keratin. The cortex is mainly formed by filaggrin cross-linked by disulfide bonds. In daily activities, although hair can protect the scalp from damage by ultraviolet rays, high temperatures, smoke and dust in the environment, it is also affected by the above environmental factors, causing the hair scale structure on the hair cuticle to be damaged, broken, and lifted and opened. In addition to increasing the combing resistance and reducing the gloss, the damaged part shows strong hydrophilicity due to the broken disulfide bonds, which can allow more chemicals to penetrate and cause continuous damage to the hair. In addition, the free water in the hair cortex will also be vaporized and escaped by high temperature, leaving cavities and reducing the toughness of the hair. At the same time, the oxidative breakage of the disulfide bonds between cystines after ultraviolet rays and oxidation will also reduce the mechanical stability and chemical resistance of the overall hair structure, making the hair dry, split, and easy to break, and the health of the hair will be damaged.

[0003] At present, most hair care essential oils on the market only have basic conditioning effects or have a single protection scope, and cannot further meet consumers' upgraded demand for hair products. For example: Chinese patent document CN114796028A discloses a hair care essential oil, which includes components: cyclopentasiloxane, camellia seed oil, polydimethylsiloxane, corn germ oil, argan oil, plant squalane, wormwood oil, rice germ oil, oregano oil, Japanese cypress oil and tocopherol acetate, which can effectively solve the problem of easy hair breakage; Chinese patent document CN115252519A discloses a hair care essence with biologically active ingredients and its preparation method, The functional ingredients used include catechin compounds or their derivatives, ginger extract, ginseng extract, angelica extract, squalane, acetyl tetrapeptide-3, etc. The anti-hair loss essence product obtained by the reasonable combination of biologically active ingredients and the preparation process can directly act on the scalp, promote blood circulation, protect hair follicle cells, promote the normal proliferation and differentiation of stem cells, and promote the synthesis of keratin, so as to achieve the effects of preventing hair loss, strengthening hair roots, increasing hair volume, and making the scalp healthier. Chinese patent document CN109568211 B discloses a hair essential oil with sunscreen and color protection effects and a preparation method thereof, which mainly uses polysiloxane-15 as the first ultraviolet absorber to prevent ultraviolet damage to the hair, but does not protect against other environmental factors that damage the hair. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a hair care essential oil with the function of preventing damage from environmental pollution and a preparation method thereof. The hair care essential oil adopts a variety of raw materials with different action mechanisms and reasonably combines them for synergistic effect. It can not only play the role of smoothing hair, but also play the role of preventing hair damage caused by environmental pollution.

[0005] In order to achieve the above object, the present invention provides a hair care essential oil with the function of preventing environmental pollution damage, which comprises, by weight: 0.01-2 parts of plant sunscreen, 0.01-2 parts of plant antioxidant, 0.01-10 parts of plant oil, 0.01-1 part of keratin, 0.01-1 part of tocopherol acetate, 0.05-1 part of essence, 5-100 parts of silicone oil and 1-100 parts of oily solvent.

[0006] A hair care essential oil capable of preventing environmental pollution and damage comprises, by weight, 0.1-1 part of a plant sunscreen, 0.1-1 part of a plant antioxidant, 0.1-10 parts of plant oil, 0.1-0.5 part of keratin, 0.01-0.5 part of tocopherol acetate, 0.05-1 part of essence, 10-100 parts of silicone oil and 1-100 parts of an oily solvent.

[0007] Furthermore, the plant sunscreen is composed of Sophora japonica flower extract and coffee extract in a mass ratio of 1:(0-10).

[0008] Furthermore, the mass ratio of the Sophora japonica flower extract to the coffee extract is 1:(0.1-1).

[0009] Furthermore, the plant antioxidant is composed of green tea extract and grape seed extract in a mass ratio of 1:(0-10).

[0010] Furthermore, the mass ratio of the green tea extract to the grape seed extract is 1:(1-2).

[0011] Furthermore, the vegetable oil is composed of coconut oil and grape seed oil in a mass ratio of 1:(5-10).

[0012] Furthermore, the keratin is composed of keratin, hydrolyzed keratin and oxidized keratin in a weight ratio of 1:(1-3):(1-5).

[0013] Furthermore, the silicone oil includes volatile silicone oil and medium-high viscosity silicone oil, the volatile silicone oil is a mixture of one or more of cyclotetramethylsiloxane, cyclopentamethylsiloxane, and polydimethylsiloxane, the medium-high viscosity silicone oil is one or more of polydimethylsiloxane and polydimethylsiloxane alcohol, and the mass fraction of the medium-high viscosity silicone oil is 5-25 parts.

[0014] Furthermore, the oily solvent is one or more of caprylic / capric triglyceride, isopropyl myristate, isohexadecane, isododecane, and ethylhexyl palmitate.

[0015] The present invention also provides a method for preparing a hair care essential oil having the function of preventing environmental pollution damage, comprising the following steps:

[0016] S1. Add silicone oil and oily solvent into an emulsifying pot and stir evenly to prepare phase A base material;

[0017] S2, premix tocopherol acetate and vegetable oil to prepare phase B mixed with vegetable oil, add phase B into phase A and mix evenly;

[0018] S3, adding plant sunscreen, plant antioxidant, keratin and essence as phase C into an emulsifying pot and stirring evenly to obtain the hair care essential oil having the function of preventing environmental pollution damage.

[0019] In the present invention, the plant sunscreen can reduce the damage of ultraviolet rays to hair because it contains chemical substances that can absorb ultraviolet rays to achieve a sunscreen effect, and at the same time can remove or reduce some of the active oxygen free radicals generated by ultraviolet irradiation, prevent ultraviolet light oxidation from causing disulfide bond breakage, and protect disulfide bonds and protein structures, thereby protecting hair and preventing it from being damaged. Among them, Sophora japonica extract comes from Sophora japonica, which contains a variety of active substances, among which flavonoids are the most isolated compounds. Rutin, as the main active ingredient in Sophora japonica, has a good ultraviolet absorption property and can effectively absorb long-wave dark spot effect ultraviolet rays (UVA) and outdoor ultraviolet rays (UVB). It can prevent UVA from reacting with endogenous photosensitive substances in the hair to produce active oxygen to oxidize the disulfide bonds of the hair, and at the same time prevent UVB from directly acting on the hair cuticles and breaking the disulfide bonds in the hair fibers. In addition, other flavonoids in Sophora japonica have antioxidant properties and can prevent disulfide bonds from being oxidized by oxygen free radicals from other sources. Coffee extract contains active ingredients such as caffeine, chlorogenic acid, ferulic acid, and caffeic acid. Among them, ferulic acid and caffeic acid are phenylpropanoid compounds. Most phenylpropanoid compounds have phenolic hydroxyl groups in their molecular structures, which make them have strong absorption of ultraviolet rays. In addition, chlorogenic acid in coffee is also a good antioxidant active substance, which can effectively prevent the disulfide bonds in hair fibers from being destroyed and play a role in protecting hair.

[0020] In the present invention, the plant antioxidant is derived from plants and is extracted by physical pressing, extraction, distillation, chemical extraction, etc. It has antioxidant activity and can effectively remove superoxide anion free radicals and DPPH free radicals. Its active ingredients mainly contain polyphenols, flavonoids, and organic acids, which can prevent the keratin on hair fibers and hair cuticles from breaking disulfide bonds due to oxidation. Green tea extract contains more catechins and other polyphenol compounds, and catechins have good antioxidant activity. The total phenols and catechins in green tea can effectively remove superoxide anion free radicals and DPPH free radicals, and prevent the oxides in the air from damaging the disulfide bonds in the hair, thereby preventing hair damage; grape seed extract contains polyphenol compounds such as epigallocatechin gallate (EGCG), proanthocyanidins, catechins, epicatechin and gallic acid, which have good antioxidant activity. Adding it to sunscreen cosmetics can help reduce the amount of other sunscreens added and reduce the potential risks of sunscreen; in addition, grape seed extract shows very high photostability to some sunscreens, improves the broad spectrum of ultraviolet absorption, and thus enhances the light protection effect.

[0021] In the present invention, the plant oil is derived from plants and is extracted by physical pressing, extraction, distillation and other methods to form a covering film and isolate the contact between hair and air. Among them, coconut oil contains a large amount of short-chain fatty acids and has a certain polarity, which can penetrate the hair into the inner epidermis of the hair cuticle, make up for the internal lipids of the hair that are taken away due to daily contact with surfactants, and enhance the adhesion of large fibers; at the same time, the polyphenols and ferulic acid in coconut oil are both good antioxidant active ingredients and can also absorb UVA. The long-chain fatty acids in coconut oil can also play the role of a substance similar to a hydrophobic lipid membrane (18-MEA) to form a bionic hydrophobic protective layer with the hydrophobic end facing outward on the hair surface to prevent environmental hydrophilic pollutants from penetrating the hair. Grape seed oil has a refreshing feeling when used as oil, and the unsaturated fatty acid content accounts for more than 90%. In addition, grape seed oil contains a relatively high amount of squalene, which can effectively remove free radicals and prevent peroxides in the air from causing further damage to the hair on the hair surface.

[0022] In the present invention, the tocopherol acetate is a derivative of tocopherol, which has good stability compared to tocopherol, and has significant functions of anti-oxidation, eliminating free radicals in the body, preventing cancer, and improving the body's immunity. Tocopherol can protect other active ingredients in the present invention and prevent plant oils from being oxidized. The antioxidant effect of tocopherol after being used in combination with other functional substances is better than that when used alone.

[0023] In the present invention, the keratin is composed of keratin, hydrolyzed keratin and oxidized keratin in a weight ratio of 1:(1-3):(1-5), and has a good film-forming effect. The protein film formed by the macromolecular keratin has good binding properties and can form a binding and continuous film on the hair. At the same time, keratin contains a high concentration of cystine, which can remove free radicals generated by pollution and ultraviolet rays. At the same time, the protein film can protect the moisture of healthy hair from being lost, thereby maintaining the moisture and smoothness of the hair.

[0024] In the present invention, the silicone oil has extremely low surface tension, can quickly spread on the hair surface to form a film, can play a role in isolating external air pollution and improving the smoothness of hair. Among them, silicone oil includes volatile silicone oil and medium-high viscosity silicone oil. Volatile silicone oil has a low degree of siloxane polymerization, low viscosity, and a high gas diffusion coefficient. After use, the residual amount on the surface of the object is low. It is generally used as a solvent for hair care oil. At the same time, due to its own extremely low surface tension, it can quickly spread on the hair surface and can bring better instant combing properties; medium-high viscosity silicone oil has a high degree of siloxane polymerization and high viscosity. After use, it is easy to stay on the hair surface to form a film, which has a hydrophobic and protective effect.

[0025] In the present invention, the oily solvent has medium to low polarity, can effectively solubilize the silicone oil component, and can effectively reduce the viscosity of the hair care essential oil, and generally has the characteristics of being easily absorbed and volatile.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The invention adopts a variety of raw materials with different mechanisms, wherein the plant sunscreens Sophora japonica extract and coffee extract have the characteristics of absorbing UVA and UVB, and play a role in preventing the disulfide bond of keratin on hair fibers and hair cuticles from breaking; the plant antioxidants grape seed extract and tea extract play an antioxidant effect, remove free radicals to protect active ingredients and prevent the cystine disulfide bond of hair from being oxidized to cysteine; the plant oils coconut oil and grape seed oil play an effect similar to 18-MEA to form a layer of bionic hydrophobic structure on the surface of hair, wherein the short-chain fatty acids of coconut oil can also play a role of penetrating and filling the lipids in the gaps between hairs; keratin, volatile silicone oil and high-viscosity silicone oil can ensure the smooth feeling of the use of hair care essential oil, and can cover the surface with a light and thin hydrophobic film to enhance the isolation effect of hair from the external environment, so as to protect the disulfide bonds of hair in the directions of anti-ultraviolet, anti-oxidation and surface film formation, and prevent the hair from being damaged due to the breaking of disulfide bonds in the hair. By compounding and using a variety of raw materials with different action mechanisms in a certain proportion, it can not only achieve the effect of smoothing hair, but also prevent hair damage caused by environmental pollution; moreover, the plant sunscreen and plant antioxidant selected in the present invention can not only prevent chemical sunscreens from generating free radicals to damage hair after absorbing ultraviolet rays, but also make the essential oil ingredients safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The following are SEM images of the surface morphology of hair before and after treatment with the hair care essential oil of Example 1 (the left side is untreated hair). DETAILED DESCRIPTION

[0029] The experimental methods in the following examples of the present invention, where no specific conditions are specified, are usually carried out under conventional conditions or under conditions recommended by the manufacturers. The various commonly used chemical reagents used in the examples are all commercially available products.

[0030] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0032] Hair care essential oils of Examples 1-6 and Comparative Examples 1-11 and their preparation

[0033] As shown in Table 1 below, the weight ratios (by weight) of 6 embodiments of the hair care oil for preventing environmental pollution damage of the present invention are listed; as shown in Tables 2-3 below, the weight ratios (by weight) of 11 comparative examples of the hair care oil for preventing environmental pollution damage of the present invention are listed. Among them, the difference between Comparative Examples 1-11 and Example 1 is that: the volatile silicone oil in Comparative Example 1 is replaced by medium-high viscosity silicone oil, and no volatile silicone oil is added; in Comparative Example 2, the medium-high viscosity silicone oil is replaced by volatile silicone oil, and no medium-high viscosity silicone oil is added; in Comparative Example 3, no vegetable oil is added; in Comparative Example 4, no plant sunscreen is added; in Comparative Example 5, no plant antioxidant is added; in Comparative Example 6, no keratin is added; in Comparative Example 7, the medium-high viscosity silicone oil is changed to 30 parts; in Comparative Example 8, the ratio of coconut oil to grape seed oil is 1:2; in Comparative Example 9, the mass ratio of Sophora japonica extract and coffee extract is 3:5; in Comparative Example 10, the mass ratio of green tea extract and grape seed extract is 4:1; in Comparative Example 11, the weight ratio of keratin, hydrolyzed keratin, and oxidized keratin is 3:1:1.

[0034] Table 1, hair care essential oil formula composition of Examples 1-6

[0035]

[0036]

[0037] Table 2, the formula composition of the hair care essential oil of comparative examples 1-6

[0038]

[0039]

[0040] Table 3, Comparative Examples 7-11 Hair Care Essential Oil Formula Composition

[0041]

[0042]

[0043] The preparation steps of the hair care essential oils of Examples 1-6 and Comparative Examples 1-11 are as follows:

[0044] S1. Add silicone oil and oily solvent into an emulsifying pot at room temperature and stir evenly to obtain a phase A base material;

[0045] S2, premixing tocopherol acetate and vegetable oil evenly to obtain phase B mixed with vegetable oil, and adding phase B into phase A and stirring evenly;

[0046] S3. Add plant sunscreen, plant antioxidant, keratin and essence as phase C into an emulsifying pot in sequence and stir evenly. Test the physical and chemical indicators. Discharge the material after passing the test to obtain the hair care essential oil.

[0047] Test Example 1: Dynamic Combing Force Test of Hair

[0048] 1. Test sample: hair care essential oils prepared in Examples 1-6 and Comparative Examples 1-11;

[0049] 2. Test method: 17 female volunteers with basically the same hair quality were selected, and the hair care essential oils prepared in Examples 1-5 and Comparative Examples 1-11 were applied to their hair respectively, and the resistance generated when combing the hair bundle and its integral (i.e., combing work) were measured. The greater the combing work, the worse the smoothing effect, so as to compare the immediate smoothing effect of each hair care essential oil on the hair; and a certain group of volunteers in Example 1 and Example 4 were randomly selected, and the hair before and after applying the hair care essential oil was scanned by a SEM scanning electron microscope;

[0050] 3. Test results:

[0051] Table 4. Instant smoothing effect of hair care essential oils

[0052]

[0053]

[0054] As shown in Table 4, the resistance generated by combing the hair bundle after the hair care essential oils prepared in Examples 1-6 of the present invention are applied to the hair is relatively low, among which Example 1 is the lowest and is the best embodiment of the present invention; Figure 1 It was found that the smoothness of the hair before and after the treatment with the hair care oil of Example 1 was very different, indicating that the hair care oil prepared by the present invention has a significant smoothing effect; while the hair of the volunteers of Comparative Examples 1-11 after applying the hair care oil still produced a large resistance when combing the hair bundles, and the smoothing effect was not very good, indicating that the formula of the hair care oil has changed, a certain component is missing or the ratio between the components has changed, which will cause the effect of the hair care oil system to decrease.

[0055] Test Example 2: Tryptophan Test of Hair

[0056] 1. Test sample: hair care essential oils prepared in Examples 1-6 and Comparative Examples 1-11;

[0057] 2. Test method: Tryptophan is an amino acid that is sensitive to oxidative components in ultraviolet light and pollution. Tryptophan exists on the surface of hair fibers. Under irradiation conditions of a certain wavelength, a fluorescence spectrometer is used to record fluorescence emission, thereby obtaining the changes in tryptophan on the surface of the hair and inferring the damage to the hair fibers. In order to measure the health of the surface of the hair fibers, a fluorescence spectrometer is used to record tryptophan fluorescence emission. First, 17 groups of hair are subjected to different damage treatments, including ultraviolet light or pollution, and then the fluorescence emission is measured. When tryptophan decreases, it indicates that the hair is damaged, which may be caused by pollution, different chemical treatments, or ultraviolet light. If the tryptophan level remains normal, it means that the hair fibers are protected.

[0058] In order to unify the standards, the baseline of untreated hair is 1.0, and the relative data of each sample is calculated based on this. If the value is close to 1, it means that the sample makes the hair bundle have better resistance to environmental pollution; conversely, the value deviates from 1, which means that the sample has worse resistance to environmental pollution.

[0059] 3. Test results: The test results are shown in Table 5.

[0060] Table 5. Test results of hair care essential oils against environmental pollution

[0061]

[0062]

[0063] It can be seen from the data in Table 5 that after the hair care essential oils prepared in Examples 1-5 are applied to the hair, the tryptophan level of the hair does not decrease significantly under the conditions of ultraviolet, cigarettes, and high temperature, indicating that the hair care essential oils prepared in the present invention have good environmental pollution resistance after being applied to the hair, among which the embodiment has the best effect and is the best embodiment of the present invention; while after the hair care essential oils prepared in Comparative Examples 1-11 are applied to the hair, the tryptophan level of the hair decreases significantly under the conditions of ultraviolet, cigarettes, and high temperature, indicating that the formula of the hair care essential oil has changed, a certain component is missing, or the ratio between the components has changed, which will cause the anti-environmental pollution damage effect of the hair care essential oil to decrease.

[0064] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A hair care essential oil with the function of preventing environmental pollution damage, characterized in that: Calculated by weight, it includes: 0.01-2 parts of plant sunscreen, 0.01-2 parts of plant antioxidant, 0.01-10 parts of plant oil, 0.01-1 part of keratin, 0.01-1 part of tocopherol acetate, 0.05-1 part of flavor, 5-100 parts of silicone oil and 1-100 parts of oily solvent.

2. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: Calculated by weight, the invention comprises: 0.1-1 part of plant sunscreen, 0.1-1 part of plant antioxidant, 0.1-10 parts of plant oil, 0.1-0.5 part of keratin, 0.01-0.5 part of tocopherol acetate, 0.05-1 part of essence, 10-100 parts of silicone oil and 1-100 parts of oily solvent.

3. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: The plant sunscreen is composed of a Sophora japonica flower extract and a coffee extract in a mass ratio of 1:(0-10).

4. The hair care essential oil for preventing environmental pollution damage according to claim 3, characterized in that: The mass ratio of the Sophora japonica extract to the coffee extract is 1:(0.1-1).

5. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: The plant antioxidant consists of green tea extract and grape seed extract in a mass ratio of 1:(0-10).

6. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: The mass ratio of the green tea extract to the grape seed extract is 1:(1-2).

7. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: The vegetable oil is composed of coconut oil and grape seed oil in a mass ratio of 1:(5-10).

8. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: The keratin protein is composed of keratin, hydrolyzed keratin and oxidized keratin in a weight ratio of 1:(1-3):(1-5).

9. The hair care essential oil for preventing environmental pollution damage according to claim 1, characterized in that: The silicone oil includes volatile silicone oil and medium-high viscosity silicone oil. The volatile silicone oil is a mixture of one or more of cyclotetramethylsiloxane, cyclopentamethylsiloxane and polydimethylsiloxane. The medium-high viscosity silicone oil is one or more of polydimethylsiloxane and polydimethylsiloxane alcohol.

10. A method for preparing the hair care essential oil having the function of preventing environmental pollution damage according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Add silicone oil and oily solvent into an emulsifying pot and stir evenly to prepare phase A base material; S2, premix tocopherol acetate and vegetable oil to prepare phase B mixed with vegetable oil, add phase B into phase A and mix evenly; S3, adding plant sunscreen, plant antioxidant, keratin and essence as phase C into an emulsifying pot and stirring evenly to obtain the hair care essential oil having the function of preventing environmental pollution damage.

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