Shaping spray for children and preparation method thereof

Abstract

The invention discloses a shaping spray for children and a preparation method thereof, and the shaping spray for children is prepared from the following components in parts by mass: 70-90 parts of water, 5-30 parts of octyl acrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, 0.1-2 parts of hydrolyzed keratin, 0.2-1 part of butanediol, 0.1-1 part of radix gentianae extract, 0.5-2 parts of preservative, 0.1-1 part of Berer hard walnut seed oil and 0.5-2 parts of nitrogen. The shaping spray for children not only has better shaping effect and spraying effect, but also is easy to clean and non-flammable, and can comprehensively nourish and protect hair and scalp of children.

Description

Technical Field

[0001] The invention belongs to the technical field of children's hair care products, and in particular relates to a children's hair styling spray and a preparation method thereof. Background Art

[0002] As modern families’ demands for children’s personal care and beauty grow, parents are paying more and more attention to their children’s daily appearance. In particular, children often need to maintain a neat and stylish hairstyle in various social occasions, school activities and daily life. This makes styling sprays designed specifically for children gradually become the new favorite in the market.

[0003] However, traditional styling spray products are mostly targeted at the adult market, and their formulas and ingredients are not suitable for children. For example, most adult styling sprays on the market use ethanol (alcohol) as the main solvent. Although alcohol helps to dry quickly and fix the hairstyle, it is highly volatile and irritating, which can easily cause dry and frizzy hair, and may irritate children's sensitive scalps. Adult styling sprays pursue a strong styling effect and usually contain high concentrations of polymers and other chemical components. These components are difficult to clean and may cause hair damage and scalp problems with long-term use. In addition, dimethyl ether is currently used as a propellant in styling sprays on the market. Due to its high evaporation enthalpy, dimethyl ether will quickly absorb heat and evaporate when sprayed, which helps to quickly dry hair or other surfaces. This is particularly important for products such as styling sprays. However, dimethyl ether is flammable, and the spray particles are small and easily dispersed in the air. After inhalation by users, it may cause nasal damage, respiratory tract infections, and even lung damage and other serious health problems.

[0004] Therefore, there is an urgent need for a children's styling spray and a preparation method thereof to solve the deficiencies of the prior art problems. Summary of the invention

[0005] In view of the above problems, the object of the present invention is to provide a children's styling spray and a preparation method thereof, wherein the children's styling spray not only has good styling effect and spray effect, but is also easy to clean and non-flammable, and can fully nourish and protect children's hair and scalp.

[0006] To achieve the above objectives, the first aspect of the present invention provides a children's styling spray, which comprises, by mass, 70 to 90 parts of water, 5 to 30 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.1 to 2 parts of hydrolyzed keratin, 0.2 to 1 parts of butylene glycol, 0.1 to 1 parts of gentian root extract, 0.5 to 2 parts of preservatives, 0.1 to 1 parts of walnut seed oil, and 0.5 to 2 parts of nitrogen.

[0007] Compared with the prior art, the beneficial effects of the children's styling spray of the present invention are as follows:

[0008] 1. The present invention uses nitrogen as a propellant. Nitrogen is an inert gas that is non-toxic, odorless and non-flammable, which reduces the risk of inhaling harmful substances and reduces the flammability risk of the product. In addition, the spray particle size driven by nitrogen is larger and is not easy to be widely dispersed in the air, thereby reducing the possibility of inhaling fine particles. However, nitrogen is non-volatile and does not provide an additional cooling effect, which in turn affects the drying and shaping effect of the children's styling spray. Based on this, the present application uses water as a solvent and limits the water content to 70 to 90 parts. This high proportion of water not only provides a natural moisturizing effect, but also can evaporate quickly after contacting the air to form a thin and uniform shaping film, thereby achieving rapid drying and shaping effects.

[0009] 2. A high proportion of water evaporating too fast may cause the styling film to dry before it is fully formed, resulting in the formed styling film being too thin or uneven, unable to provide sufficient support, and even leaving local white residue on the hair, making the hairstyle look unnatural; based on this, the present application also introduces 5 to 30 parts of octylacrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer (cas: 70801-07-9), which can promote uniform evaporation of water and form a stable and transparent film during the evaporation process, thereby uniformly covering the entire hair bundle to provide sufficient support and avoid white residue caused by local rapid drying; at the same time, the film has extremely high structural stability, and can maintain its shape even after the water is completely evaporated, and is not easy to break or fall off, which makes the styling effect more lasting and can maintain the hairstyle for a long time; and the film also has unique flexibility, which can maintain the natural curvature and elasticity of the hair while fixing the hairstyle.

[0010] 3. Although a high proportion of water helps to evaporate quickly, it is easy to form larger droplets during the spraying process, resulting in an insufficiently fine spray. At the same time, due to its high viscosity, the size of the spray droplets is further increased by the octyl acrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, making it difficult to disperse into fine particles. In addition, nitrogen is used as a propellant. Nitrogen cannot effectively reduce surface tension like dimethyl ether to help the liquid to be more evenly atomized. Therefore, if the spray product only contains water, nitrogen, and octyl acrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, the atomization effect of the spray will be unsatisfactory. Based on this, the present application also introduces walnut seed oil. Due to its lubricity and good dispersibility, walnut seed oil helps to help the liquid form more delicate and evenly distributed droplets in the spray. Therefore, the present application can significantly enhance the atomization performance of the spray by adding walnut seed oil without changing the original shaping effect.

[0011] 4. Compared with the traditional alcohol system, the water-based formula of the present application reduces the irritation to the hair, avoids the frizzy problem caused by excessive drying, and is easier to wash without affecting the health of the hair. However, a high proportion of water and octyl acrylamide / acrylates / butylaminoethyl methacrylate copolymer may not provide sufficient nourishment and moisturizing for the hair, which may cause the hair to still feel dry or lack luster after long-term use. Therefore, the hydrolyzed keratin introduced in the spray formula of the present application can provide the necessary amino acids and fill the internal gaps of the hair, making the hair softer and smoother; the introduced gentian root extract is rich in anti-inflammatory and soothing ingredients, which effectively relieves the sensitivity and itching of children's delicate scalp, and contains antioxidant ingredients to protect the scalp from environmental damage; the introduced walnut seed oil deeply moisturizes the hair and scalp with its unsaturated fatty acids and vitamin E, repairs damaged hair, prevents dryness, breakage and split ends, and gives the hair more luster and suppleness. Therefore, the children's styling spray of the present application can also fully nourish and protect children's hair and scalp.

[0012] Furthermore, the children's styling spray of the present invention includes 75 to 85 parts of water, 10 to 25 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.5 to 1.6 parts of hydrolyzed keratin, 0.4 to 0.7 parts of butylene glycol, 0.3 to 0.8 parts of gentian root extract, 0.6 to 1.4 parts of preservatives, 0.3 to 0.7 parts of walnut seed oil, and 0.8 to 1.8 parts of nitrogen.

[0013] Furthermore, the children's styling spray of the present invention includes 75 to 78 parts of water, 21 to 24 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.8 to 1.3 parts of hydrolyzed keratin, 0.6 to 0.7 parts of butylene glycol, 0.5 to 0.8 parts of gentian root extract, 0.6 to 0.8 parts of preservatives, 0.4 to 0.6 parts of walnut seed oil, and 1.0 to 1.6 parts of nitrogen.

[0014] Furthermore, the preservative of the present invention is at least one of caprylyl glycol, sodium dehydroacetate, sodium lactate and rosemary extract. These preservatives are mild, ensuring that the product can maintain long-term stability and does not cause irritation to children's scalp.

[0015] To achieve the above objectives, the second aspect of the present invention provides a method for preparing a children's styling spray, comprising the steps of:

[0016] (1) Heat the water in the formula and stir it while keeping warm;

[0017] (2) cooling the water after step (1), adding the formulated amount of octylacrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring to obtain a first phase;

[0018] (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring uniformly to obtain a second phase;

[0019] (4) adding a formulated amount of walnut seed oil to the second phase and stirring evenly to obtain a third phase;

[0020] (5) adding a formulated amount of preservatives to the third phase and stirring uniformly to obtain a fourth phase;

[0021] (6) After the fourth phase is filled into the container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is charged to obtain a children's hair spray.

[0022] Compared with the prior art, butylene glycol has good water solubility, and gentian root extract can also be well dispersed and dissolved in water. Therefore, mixing butylene glycol and gentian root extract first can ensure that they are fully dissolved to form a uniform and stable first phase; then adding hydrolyzed keratin to the first phase that has been formed can ensure that the hydrolyzed keratin is more evenly distributed in the entire system; walnut seed oil is insoluble in water. Adding it to the second phase and subjecting it to homogenization treatment can ensure good combination between the oil phase and the water phase to form a stable emulsion system, thereby improving the atomization effect of the spray.

[0023] Furthermore, step (1) of the present invention comprises heating the formulated amount of water to 80-85° C. and stirring the mixture for 25-30 minutes.

[0024] Furthermore, step (2) of the present invention comprises cooling the water after step (1) to below 45°C.

[0025] Furthermore, step (4) of the present invention includes using a homogenizer to stir evenly. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Unless otherwise specified, the raw materials used below were purchased from the market. For example, the gentian root extract used in the examples and comparative examples was purchased from Shaanxi Haochen Biotechnology Co., Ltd.; the hydrolyzed keratin was purchased from Jiangsu Huace Biotechnology Co., Ltd.; and the walnut seed oil was purchased from Dongguan Jiesite Cosmetics Co., Ltd.

[0028] Example 1

[0029] The present embodiment provides a children's styling spray, which includes, by mass, 85 parts of water, 12 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.55 parts of hydrolyzed keratin, 0.4 parts of butylene glycol, 0.35 parts of gentian root extract, 0.8 parts of preservatives, 0.2 parts of walnut seed oil, and 0.7 parts of nitrogen; the preservative is sodium lactate.

[0030] This embodiment provides a method for preparing a children's hair spray, the steps comprising:

[0031] (1) Heat the formulated amount of water to 82°C and stir for 30 minutes;

[0032] (2) cooling the water after step (1) to 42° C., adding the formulated amount of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring to obtain a first phase;

[0033] (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring uniformly to obtain a second phase;

[0034] (4) adding a formulated amount of walnut seed oil to the second phase and stirring evenly to obtain a third phase;

[0035] (5) adding a formulated amount of preservatives to the third phase, and stirring the mixture uniformly with a homogenizer to obtain a fourth phase;

[0036] (6) After the fourth phase is filled into the container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is charged to obtain a children's hair spray.

[0037] Example 2

[0038] The present embodiment provides a children's styling spray, which includes, by mass, 75 parts of water, 22 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.75 parts of hydrolyzed keratin, 0.5 parts of butylene glycol, 0.42 parts of gentian root extract, 0.6 parts of preservatives, 0.4 parts of walnut seed oil, and 1.2 parts of nitrogen; the preservative is caprylyl glycol.

[0039] This embodiment provides a method for preparing a children's hair spray, the steps comprising:

[0040] (1) Heat the formulated amount of water to 85°C and stir for 28 minutes;

[0041] (2) cooling the water after step (1) to 44° C., adding the formulated amount of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring evenly to obtain a first phase;

[0042] (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring uniformly to obtain a second phase;

[0043] (4) adding a formulated amount of walnut seed oil to the second phase and stirring evenly to obtain a third phase;

[0044] (5) adding a formulated amount of preservatives to the third phase, and stirring the mixture uniformly with a homogenizer to obtain a fourth phase;

[0045] (6) After the fourth phase is filled into the container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is charged to obtain a children's hair spray.

[0046] Example 3

[0047] The present embodiment provides a children's styling spray, which includes, by mass, 75 parts of water, 22 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.9 parts of hydrolyzed keratin, 0.65 parts of butylene glycol, 0.7 parts of gentian root extract, 0.7 parts of preservatives, 0.5 parts of walnut seed oil, and 1.2 parts of nitrogen; the preservative is sodium lactate.

[0048] This embodiment provides a method for preparing a children's hair spray, the steps comprising:

[0049] (1) Heat the formulated amount of water to 82°C and stir for 30 minutes;

[0050] (2) cooling the water after step (1) to 42° C., adding the formulated amount of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring to obtain a first phase;

[0051] (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring uniformly to obtain a second phase;

[0052] (4) adding a formulated amount of walnut seed oil to the second phase and stirring evenly to obtain a third phase;

[0053] (5) adding a formulated amount of preservatives to the third phase, and stirring the mixture uniformly with a homogenizer to obtain a fourth phase;

[0054] (6) After the fourth phase is filled into the container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is charged to obtain a children's hair spray.

[0055] Comparative Example 1

[0056] The comparative example provides a children's styling spray, which comprises, by mass, 65 parts of water, 32 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.55 parts of hydrolyzed keratin, 0.4 parts of butylene glycol, 0.35 parts of gentian root extract, 0.8 parts of preservatives, 0.2 parts of walnut seed oil, and 0.7 parts of nitrogen; the preservative is sodium lactate.

[0057] This comparative example provides a method for preparing a children's styling spray, the steps comprising:

[0058] (1) Heat the formulated amount of water to 82°C and stir for 30 minutes;

[0059] (2) cooling the water after step (1) to 42° C., adding the formulated amount of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring to obtain a first phase;

[0060] (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring uniformly to obtain a second phase;

[0061] (4) adding a formulated amount of walnut seed oil to the second phase and stirring evenly to obtain a third phase;

[0062] (5) adding a formulated amount of preservatives to the third phase, and stirring the mixture uniformly with a homogenizer to obtain a fourth phase;

[0063] (6) After the fourth phase is filled into the container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is charged to obtain a children's hair spray.

[0064] Comparative Example 2

[0065] The comparative example provides a children's styling spray, which comprises, by mass, 85 parts of water, 12 parts of octylacrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, 0.55 parts of hydrolyzed keratin, 0.4 parts of butylene glycol, 0.35 parts of gentian root extract, 0.8 parts of preservatives, and 0.7 parts of nitrogen; the preservative is sodium lactate.

[0066] This comparative example provides a method for preparing a children's styling spray, the steps comprising:

[0067] (1) Heat the formulated amount of water to 82°C and stir for 30 minutes;

[0068] (2) cooling the water after step (1) to 42° C., adding the formulated amount of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring to obtain a first phase;

[0069] (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring uniformly to obtain a second phase;

[0070] (4) adding a formulated amount of preservatives to the second phase, and stirring the mixture uniformly with a homogenizer to obtain a third phase;

[0071] (5) After the third phase is filled into the container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is charged to obtain a children's hair spray.

[0072] The cleaning difficulty, styling effect, spraying effect and flammability of the children's styling sprays of Examples 1 to 3 and Comparative Examples 1 to 2 were tested according to the following method. The results are shown in Table 1.

[0073] Cleaning difficulty test:

[0074] Spray the same amount of spray evenly on the wig, then wait 24 hours and wash the sample using the same shampoo and the same cleaning procedure, recording the time it takes to thoroughly clean each wig until there is no residue on the surface.

[0075] Styling effect test:

[0076] Take several hairs of equal length and weight, roll them on the curling iron and fix them, and spray the spray on them. After the styling spray dries, take the hair and hang it vertically, take pictures every 8 hours, and calculate the drooping percentage of the hair by measuring the distance from the top of the curl to the farthest point and comparing it with the initial distance. Specifically, the better the styling effect of the product, the smaller the drooping percentage of the curl. At the same time, use a microscope to magnify and observe whether there are obvious white particles or powdery substances attached to the hair, that is, whether there is white flakes.

[0077] Spray effect test:

[0078] Lay a grid template on paper and mark the area to be covered. Spray the spray at the same pressure and distance to ensure that the entire grid is evenly covered; the image analysis software automatically counts the number of small squares covered and multiplies the actual area of ​​each small square and divides it by the total area of ​​the entire grid to obtain the effective coverage area.

[0079] Flammability test:

[0080] Carry out in a well-ventilated and controlled safety environment. Spray the aerosol into the designated area and then ignite it with a standardized flame. Observe whether it can be ignited. If it is not flammable, record it as non-flammable; if it is flammable, further analysis of the safety of the ingredients is required.

[0081] The effects of the children's hair setting sprays of Examples 1 to 3 and Comparative Examples 1 to 2 were evaluated according to the following method. The results are shown in Table 2.

[0082] The aerosols of Examples 1 to 3 and Comparative Examples 1 to 2 were applied to 10 children (randomly) (a total of 50 subjects, 10 in each group). The subjects used them in the same way (the dosage was adapted to the length or amount of hair). The subjects scored according to their own feelings. The scoring standard was a 10-point system, with 1 point being the worst and 10 points being the best. The higher the score, the better the effect. The results are listed in Table 2.

[0083] Table 1

[0084]

[0085] Table 2

[0086]

[0087]

[0088] By comparing Examples 1 to 3, it can be seen that the spray of Example 3 has the advantages of easy cleaning, no white flakes and good spray effect while maintaining a good styling effect, and can also give the hair more luster and suppleness. Therefore, the formula of the children's styling spray of the present application preferably includes 75 to 78 parts of water, 21 to 24 parts of octylacrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, 0.8 to 1.3 parts of hydrolyzed keratin, 0.6 to 0.7 parts of butylene glycol, 0.5 to 0.8 parts of gentian root extract, 0.6 to 0.8 parts of preservatives, 0.4 to 0.6 parts of walnut seed oil, and 1.0 to 1.6 parts of nitrogen.

[0089] By comparing Example 1 with Comparative Example 1, it can be seen that if the water content is not within the range of 70 to 90 parts, and the content of octylacrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer is not within the range of 5 to 30 parts, it will affect the cleaning effect, white flakes, etc. Specifically, too low a water content will increase the difficulty of cleaning; while too high a copolymer content will make the styling force too strong, causing the hair to appear stiff and prone to white flakes. In addition, the inventors of this application also found in the process of invention that if the water content is too high, the styling effect will be weakened, and if the copolymer content is too low, it will not provide sufficient styling support. Therefore, the selection of the water and copolymer content is crucial to the overall performance of the spray.

[0090] By comparing Example 1 with Comparative Example 2, it can be seen that removing the walnut seed oil will affect the atomization performance of the spray and the flexibility of the hair.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A children's styling spray, characterized in that: Calculated by mass, it includes 70 to 90 parts of water, 5 to 30 parts of octylacrylamide / acrylic acid (esters) / butylaminoethyl methacrylate copolymer, 0.1 to 2 parts of hydrolyzed keratin, 0.2 to 1 parts of butylene glycol, 0.1 to 1 parts of gentian root extract, 0.5 to 2 parts of preservatives, 0.1 to 1 parts of walnut seed oil, and 0.5 to 2 parts of nitrogen.

2. The children's styling spray according to claim 1, characterized in that: It includes 75 to 85 parts of water, 10 to 25 parts of octylacrylamide / acrylates / butylaminoethyl methacrylate copolymer, 0.5 to 1.6 parts of hydrolyzed keratin, 0.4 to 0.7 parts of butylene glycol, 0.3 to 0.8 parts of gentian root extract, 0.6 to 1.4 parts of preservatives, 0.3 to 0.7 parts of walnut seed oil, and 0.8 to 1.8 parts of nitrogen.

3. The children's styling spray according to claim 1, characterized in that: It includes 75 to 78 parts of water, 21 to 24 parts of octylacrylamide / acrylates / butylaminoethyl methacrylate copolymer, 0.8 to 1.3 parts of hydrolyzed keratin, 0.6 to 0.7 parts of butylene glycol, 0.5 to 0.8 parts of gentian root extract, 0.6 to 0.8 parts of preservatives, 0.4 to 0.6 parts of walnut seed oil, and 1.0 to 1.6 parts of nitrogen.

4. The children's styling spray according to claim 1, characterized in that: The preservative is at least one of caprylyl glycol, sodium dehydroacetate, sodium lactate and rosemary extract.

5. The method for preparing the children's styling spray according to any one of claims 1 to 4, characterized in that the steps include: (1) Heat the water in the formula and stir it while keeping warm; (2) cooling the water after step (1), adding the formulated amount of octylacrylamide / acrylic acid (ester) / butylaminoethyl methacrylate copolymer, butylene glycol, and gentian root extract, and stirring to obtain a first phase; (3) adding a formulated amount of hydrolyzed keratin to the first phase and stirring evenly to obtain a second phase; (4) adding a formulated amount of walnut seed oil to the second phase and stirring to obtain a third phase; (5) adding a formulated amount of preservatives to the third phase and stirring uniformly to obtain a fourth phase; (6) After the fourth phase is filled into a container, a valve is added, the container is sealed, and then a formulated amount of nitrogen is introduced to prepare a children's hair spray.

6. The method for preparing the children's styling spray according to claim 5, characterized in that: The step (1) comprises heating the formulated amount of water to 80-85° C. and stirring the mixture for 25-30 minutes.

7. The method for preparing the children's styling spray according to claim 5, characterized in that: Step (2) includes cooling the water after step (1) to below 45°C.

8. The method for preparing the children's styling spray according to claim 5, characterized in that: Step (4) includes using a homogenizer to stir evenly.

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