A shampooing granule and a method for preparing the same

Abstract

The present application belongs to the technical field of daily chemical products, and particularly relates to a shampoo granule and a preparation method thereof. The shampoo granule comprises the following components in parts by weight: 0.0008-0.0072 parts of a softening agent, 53-92 parts of a surfactant, 5-25 parts of an adsorbent, 1-10 parts of a humectant, 0.5-6 parts of an anti-caking agent, 0.5-4 parts of a hair conditioner, 0.1-1 part of a pH regulator, 0.2-1.4 parts of a preservative, 0.1-1 part of a thickening agent and 0.5-1.5 parts of a fragrance agent; the surfactant is sodium cocoyl isethionate and sodium lauroyl glutamate; and the softening agent is Acacia rigens kernel oil, avocado oil, grape seed oil and lactobacillus / rye flour fermentation product. The shampoo granule prepared by using specific components and a preparation process can provide excellent mildness and nourishing and cleaning effects, is easy to rinse and has no residue, can significantly reduce the water consumption during hair washing, and is easy to transport and carry.

Description

Technical Field

[0001] This invention belongs to the field of daily chemical products technology, and particularly relates to a shampoo granule and its preparation method. Background Technology

[0002] Currently, traditional liquid shampoos are widely used in the market, but they have some problems that cannot be ignored. First, many consumers experience scalp problems such as itching and increased dandruff after using liquid shampoos. This is usually because liquid shampoos use a large amount of surfactants, thickeners, and other chemical ingredients, which may irritate sensitive scalps, leading to excessive dryness or allergic reactions, thus causing scalp discomfort and dandruff. Second, allergic reactions to liquid shampoos are also relatively common. Some shampoos contain large amounts of dyes and preservatives, which may trigger allergic reactions on the scalp, especially for consumers with sensitive skin, potentially causing symptoms such as redness, swelling, and itching. Furthermore, the production process of liquid shampoos also faces environmental and resource consumption issues. The production of liquid shampoos requires a large amount of water, and due to their complex formulas and multiple packaging layers, water and resource waste is significant. Water consumption during manufacturing, liquid weight during transportation, and water waste during use all put pressure on the environment.

[0003] Therefore, the innovative development of a solid shampoo granule that can gently clean hair, is easy to rinse, and leaves no residue has become a noteworthy alternative. It can not only reduce scalp irritation and allergic reactions, but also reduce water consumption, has environmental advantages, and is easy to transport or carry. It meets the dual needs of modern consumers for environmental protection and health, and fills a market gap. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shampoo granule and its preparation method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention includes:

[0006] In a first aspect, the present invention provides shampoo granules comprising the following components in parts by weight: 0.0008-0.0072 parts of softener, 53-92 parts of surfactant, 5-25 parts of adsorbent, 1-10 parts of moisturizer, 0.5-6 parts of anti-caking agent, 0.5-4 parts of hair conditioning agent, 0.1-1 parts of pH adjuster, 0.2-1.4 parts of preservative, 0.1-1 parts of thickener, and 0.5-1.5 parts of fragrance; wherein the surfactant is sodium cocoyl ethanesulfonate and sodium lauroyl glutamate; and the softener is argan kernel oil, avocado oil, grape seed oil, and lactobacillus / rye flour fermentation product.

[0007] This invention uses sodium cocoyl isosulfonate and sodium lauroyl glutamate as surfactants in combination. The two work together to enable the shampoo particles to achieve low irritation and good cleaning effect, ensuring that the shampoo particles do not over-degrease, over-dry, or cause allergies when cleaning the hair. In addition, the excellent rinsing properties of the two components also ensure that the shampoo particles leave no residue after washing, guaranteeing that the hair is clean, smooth, and refreshed, thus improving the user experience.

[0008] Furthermore, this invention utilizes argan kernel oil, avocado oil, grape seed oil, and Lactobacillus / rye flour fermentation product in combination with the surfactant, further enhancing the multiple hair care and cleansing effects of the shampoo particles. This provides excellent gentleness, nourishing effects, and easy rinsing, ensuring hair feels clean and comfortable, suitable for all hair types, especially those with sensitive scalps. Argan kernel oil is rich in essential fatty acids, vitamin E, and antioxidants, providing deep nourishment to the hair and scalp and helping to remove oil and dirt. Avocado oil is rich in monounsaturated fatty acids and vitamins A, D, E, and K, deeply nourishing the hair and scalp and helping to soothe dry, itchy, and flaky scalp. Grape seed oil is rich in polyphenols and antioxidants, enhancing hair health, preventing free radical damage, and helping to balance scalp oil secretion, keeping hair clean. Lactobacillus / rye flour fermentation product is rich in natural lactic acid and beneficial microbial components, regulating the scalp's microecology and maintaining pH balance.

[0009] Experimental research has revealed that the present invention uses the above four softening agent components combined with the specific surfactant and other components to prepare shampoo granules. The interaction between the components enables the shampoo granules to achieve a gentler and better cleaning and stain removal effect. At the same time, the four softening agent components undergo an affinity reaction with the surfactant, thereby forming a more uniform and stable granular finished product.

[0010] Preferably, the shampoo granules comprise the following components in parts by weight: 0.0015-0.0045 parts of softener, 62-82 parts of surfactant, 10-20 parts of adsorbent, 3-8 parts of moisturizer, 1-5 parts of anti-caking agent, 1-3 parts of hair conditioner, 0.2-0.8 parts of pH adjuster, 0.4-1.2 parts of preservative, 0.2-0.8 parts of thickener, and 0.7-1.3 parts of fragrance.

[0011] Preferably, the shampoo granules comprise the following components in parts by weight: 0.004 parts softener, 75 parts surfactant, 20 parts adsorbent, 5 parts moisturizer, 3 parts anti-caking agent, 2 parts hair conditioner, 0.5 parts pH adjuster, 0.8 parts preservative, 0.5 parts thickener, and 1 part fragrance.

[0012] Preferably, the mass ratio of sodium cocoyl hydroxyethyl sulfonate to sodium lauroyl glutamate is (57-67):(5-15).

[0013] Preferably, the mass ratio of sodium cocoyl hydroxyethyl sulfonate to sodium lauroyl glutamate is 60:15.

[0014] Preferably, the mass ratio of Argan kernel oil, jojoba seed oil, grape seed oil and Lactobacillus / rye flour fermentation product is (0.0005-0.0015):(0.0005-0.0015):(0.0005-0.0015):(0.0005-0.0015).

[0015] Preferably, the adsorbent comprises modified corn starch; the humectant comprises betaine; the hair conditioning agent comprises guar gum hydroxypropyltrimethylammonium chloride; and the thickener comprises hydroxypropyl methylcellulose.

[0016] Preferably, the anti-caking agent comprises magnesium stearate; the pH adjuster comprises citric acid; the preservative comprises chlorphenesin and / or benzyl alcohol; and the fragrance comprises flavoring.

[0017] Preferably, the method for preparing the shampoo granules includes the following steps:

[0018] S1. Mix surfactants, adsorbents, humectants, anti-caking agents, hair conditioning agents, fragrances, pH adjusters, preservatives, and softeners evenly, and then pulverize them into a uniform powder.

[0019] S2. Mix the thickener with water to prepare a thickener aqueous solution with a concentration of 0.4-0.6%. Then add the powder described in step S1 into the granulator. Spray the thickener aqueous solution into the granulator through a spraying device. Dry at high temperature to produce granules.

[0020] S3. Screen the particles to 10-100 mesh to obtain the shampoo particles.

[0021] Preferably, in step S2, the mass ratio of the powder to the thickener aqueous solution is 1:0.3.

[0022] This invention uses the specific process described above to produce shampoo granules, which can uniformly mix all components in the granules, avoiding the separation or unevenness of certain components in the final product. This helps improve the stability and consistency of the shampoo granules, and effectively controls the size distribution of the granules, ensuring their uniformity and hardness, thereby ensuring good solubility and shampooing effect. Furthermore, the innovative solid shampoo granules developed by the preparation process of this invention have low water activity, which can effectively inhibit the activity of bacteria and other microorganisms, reduce the risk of product spoilage, reduce the use of preservatives, and improve the stability of active ingredients in the granules. The low water activity also helps control foam generation, achieving easy rinsing and no residue, significantly reducing water consumption during shampooing. Compared with traditional liquid shampoo, the volume is greatly reduced, making it safer, more efficient, and more convenient in the logistics process.

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

[0024] This invention innovatively develops a shampoo granule by combining selected surfactants and softeners with other ingredients under a specific preparation process. The components in the shampoo granule work together to provide multiple hair care and cleansing effects, offering excellent gentleness and nourishment, ensuring that the hair is clean and comfortable after washing. Furthermore, compared with traditional liquid shampoo, the shampoo granule is easy to rinse, leaves no residue, significantly reduces water consumption during shampooing, and greatly reduces water resource consumption. It is also much smaller in size, making it easy to transport or carry, meeting the dual needs of modern consumers for environmental protection and health. Detailed Implementation

[0025] To better illustrate the objectives, technical solutions, and advantages of this invention, the invention will be further described below with reference to specific embodiments. Those skilled in the art should understand that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0026] Unless otherwise specified, all raw materials used in the following examples and comparative examples are commercially available general-purpose materials.

[0027] Examples 1-5

[0028] Examples 1-5 of this invention provide shampoo granules, the specific formulation of which is shown in Table 1. The preparation method of the shampoo granules includes the following steps:

[0029] S1. Mix surfactants, adsorbents, humectants, anti-caking agents, hair conditioning agents, fragrances, pH adjusters, preservatives, and softeners evenly, and then pulverize them into a uniform powder.

[0030] S2. Mix the thickener with water to prepare a thickener aqueous solution with a concentration of 0.5%. Then add the powder described in step S1 into the granulator. Spray the thickener aqueous solution into the granulator through a spraying device. Dry at high temperature to produce granules.

[0031] S3. Screen the particles to 10-100 mesh to obtain the shampoo particles;

[0032] In step S2, the mass ratio of the powder to the thickener aqueous solution is 1:0.3, that is, 1 kg of powder requires 0.3 kg of thickener aqueous solution.

[0033] Table 1: Formulation table of shampoo granules described in Examples 1-5 (parts by weight)

[0034]

[0035]

[0036] Comparative Examples 1-7

[0037] The present invention also provides formulations for the shampoo granules of Comparative Examples 1-7, as shown in Table 2. The preparation methods of the shampoo granules provided in Comparative Examples 1-7 are similar to those in Examples 1-5, the difference being in the formulation.

[0038] Table 2: Formulation table of shampoo granules described in Comparative Examples 1-7 (parts by weight)

[0039]

[0040]

[0041] Comparative Example 8

[0042] This comparative example provides a liquid shampoo that differs from Example 1 only in that the preparation method is different, while the other components and contents are the same as in Example 1.

[0043] The preparation method of the liquid shampoo includes the following steps:

[0044] Add surfactants, adsorbents, humectants, anti-caking agents, hair conditioning agents, fragrances, pH adjusters, preservatives, softeners, and thickeners to water, and mix thoroughly at 40°C to obtain a relatively viscous emulsion-like shampoo.

[0045] Example of effect

[0046] 1. Water activity test:

[0047] The shampoo granules prepared in Example 1 and Comparative Examples 1-4 were used as samples, and their water activity was tested. The specific test method referred to the United States Pharmacopeia-National Formulary General Chapter 922 Water Activity, and a water activity meter was used for testing. The specific results are shown in Table 3.

[0048] Table 3

[0049]

[0050]

[0051] Water activity (Aw) refers to the availability or activity of water in a substance. It measures the degree to which water can participate in biochemical reactions within a system. In the preparation of shampoo granules, water activity has a significant impact on the product's properties, stability, and effectiveness. Generally speaking, shampoo granules with lower water activity are more conducive to improving product stability, preventing the degradation or inactivation of active ingredients, and effectively inhibiting the growth and reproduction of microorganisms, thereby reducing the risk of product spoilage. Furthermore, reducing water activity helps control foam generation, achieving a more stable amount and quality of foam, making the shampoo granules more uniform, easier to rinse, and residue-free during use.

[0052] As shown in Table 3, the water activity of the shampoo granules prepared by the technical solution of the present invention is 0.31, which is significantly lower than that of the comparative examples. In contrast, the water activity of the shampoo granules prepared in Comparative Examples 1-2 is significantly higher than that of Example 1 due to the absence of sodium cocoyl isosulfonate and sodium lauroyl glutamate, respectively, which are surfactants. This may be because the absence of these two components prevents other components in the granules from fully combining, resulting in unstable granule structure and increased water activity. In Comparative Examples 3-4, when the ratio of sodium cocoyl isosulfonate and sodium lauroyl glutamate exceeds the limits of the present invention, the water activity of the shampoo granules is also reduced, which may affect the foam performance, storage stability, and efficacy of the shampoo granules.

[0053] 2. Stimulation test:

[0054] The shampoo granules prepared in Examples 1-5 and Comparative Examples 1-7, as well as the liquid shampoo prepared in Comparative Example 8, were used as samples to test their skin irritation. The specific methods are as follows.

[0055] Thirty-nine healthy adult domestic rabbits were randomly selected and divided into 13 groups of 3 rabbits each. Four 9cm sections of fur were shaved from the back of each rabbit. 2One mL each of the relatively viscous emulsions prepared by dissolving the substances in water in Examples 1-5 and Comparative Examples 1-7, and the liquid shampoo in Comparative Example 8, was evenly applied to the shaved areas of three rabbits. After sealing for 4 hours, the test substances were removed and the residual test substances were washed away with water. The local skin reaction at the test sites was observed at 1, 24, and 48 hours after the removal of the test substances.

[0056] Tests showed that none of the 39 rabbits exhibited local irritation reactions such as skin erythema or edema, indicating that the shampoo granules prepared by this invention are safe, non-irritating, and have no adverse reactions.

[0057] 3. Product performance evaluation test:

[0058] The shampoo granules prepared in Examples 1-5 and Comparative Examples 1-7, and the liquid shampoo prepared in Comparative Example 8 were used as samples for sensory evaluation testing.

[0059] 130 subjects were randomly selected, aged 20-60 years, including 70 males and 80 females. The subjects were divided into 13 groups: Examples 1-5 and Comparative Examples 1-8, with 10 subjects in each group. Sensory evaluation tests were conducted on the samples prepared in Examples 1-5 and Comparative Examples 1-8, respectively. Each sample was used for two weeks. Subjects evaluated the samples based on their experience using a scoring system, assessing cleaning and stain removal performance, ease of rinsing with no residue, and gentle moisturizing effect. A scoring system of 10 points was used, with 1 being the worst and 10 the best. The evaluation results are shown in Table 4, where a higher average score indicates a better effect.

[0060] Table 4

[0061]

[0062] As shown in Table 4, the shampoo granules prepared in the embodiments of the present invention have good gentle cleaning effect, and the granular product is easy to rinse and leaves no residue, which can significantly reduce the amount of water used when washing hair. In particular, the shampoo granules prepared in Example 1 have the best effect. When comparative examples 1-2 lack sodium cocoyl isosulfonate or sodium lauroyl glutamate, and when the amount of the two components in comparative examples 3-4 exceeds the preferred range of the present invention, the cleaning effect of the shampoo granules is significantly reduced compared with Example 1. This indicates that the two surfactant components, sodium cocoyl isosulfonate and sodium lauroyl glutamate, selected in the present invention can better exert synergistic effects within the limited range to enhance the cleaning effect of the granules, and the granules are easier to rinse, thereby improving the user experience. When comparative examples 5-6 lack two of the four conditioning agent components, namely lactobacillus / rye milling fermentation product, argan kernel oil, grape seed oil and avocado oil, the gentle nourishing effect of the shampoo granules decreases, and the comparative examples... When sodium lauroyl glutamate, lactobacillus / rye flour fermentation product, and argan kernel oil were missing in Example 7, the overall effect of the shampoo granules was significantly reduced compared to Example 1. This indicates that the specific surfactants and softeners selected in this invention work together and influence each other, enabling the shampoo granules to achieve a gentler and more effective cleaning and stain removal effect. In contrast, when Comparative Example 8 directly prepared liquid shampoo without using the preparation process described in this invention to prepare shampoo granules, the overall efficacy of the shampoo in Comparative Example 8 also decreased, even though the components and contents were exactly the same as in Example 1. This means that the shampoo granules prepared by the specific process of this invention can effectively avoid the degradation or inactivation of active ingredients, thereby improving the performance and efficacy of the product.

[0063] 4. Stability Test:

[0064] The stability of the shampoo granules prepared in Example 1 and the liquid shampoo prepared in Comparative Example 8 was tested using the following methods.

[0065] The internal control standards (high temperature 45±1℃ test for 2 months, low temperature -18±1℃ test for 2 months) are higher than the national standards and light industry standards; the high and low temperature cycle test is performed 3 times: placing the sample at high temperature 45±1℃ and low temperature -18±1℃ for 24 hours each constitutes one cycle. The results are shown in Table 5.

[0066] Table 5

[0067]

[0068] As shown in Table 5, the shampoo granules prepared by the technical solution of the present invention have good stability, thus ensuring stable efficacy. In contrast, the liquid shampoo of Comparative Example 8 exhibited oxidation, discoloration, and stratification under different conditions, indicating poor stability. The above results demonstrate that the present invention, by employing a specific preparation process to convert traditional liquid shampoo into shampoo granules, can effectively improve the efficacy and stability of the product, and is also convenient to carry and transport, providing significant advantages in terms of environmental protection, economy, convenience, and energy saving.

[0069] Finally, it should be noted that the above embodiments are used to illustrate the technical solutions of the present invention and not 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 shampoo granule, characterized in that, The shampoo granules comprise the following components in parts by weight: 0.0008-0.0072 parts softener, 53-92 parts surfactant, 5-25 parts adsorbent, 1-10 parts moisturizer, 0.5-6 parts anti-caking agent, 0.5-4 parts hair conditioning agent, 0.1-1 part pH adjuster, 0.2-1.4 parts preservative, 0.1-1 part thickener, and 0.5-1.5 parts fragrance; The surfactants are sodium cocoyl ethanesulfonate and sodium lauroyl glutamate; The softener is argan kernel oil, avocado oil, grape seed oil, and lactobacillus / rye flour fermentation product.

2. The shampoo granules as described in claim 1, characterized in that, The shampoo granules comprise the following components in parts by weight: 0.0015-0.0045 parts of softener, 62-82 parts of surfactant, 10-20 parts of adsorbent, 3-8 parts of moisturizer, 1-5 parts of anti-caking agent, 1-3 parts of hair conditioner, 0.2-0.8 parts of pH adjuster, 0.4-1.2 parts of preservative, 0.2-0.8 parts of thickener, and 0.7-1.3 parts of fragrance.

3. The shampoo granules as described in claim 2, characterized in that, The shampoo granules comprise the following components in parts by weight: 0.004 parts softener, 75 parts surfactant, 20 parts adsorbent, 5 parts moisturizer, 3 parts anti-caking agent, 2 parts hair conditioning agent, 0.5 parts pH adjuster, 0.8 parts preservative, 0.5 parts thickener, and 1 part fragrance.

4. The shampoo granules as described in claim 1, characterized in that, The mass ratio of sodium cocoyl hydroxyethyl sulfonate to sodium lauroyl glutamate is (57-67):(5-15).

5. The shampoo granules as described in claim 4, characterized in that, The mass ratio of sodium cocoyl hydroxyethyl sulfonate to sodium lauroyl glutamate is 60:

15.

6. The shampoo granules as described in claim 1, characterized in that, The mass ratio of Argan kernel oil, jojoba seed oil, grape seed oil, and Lactobacillus / rye flour fermentation product is (0.0005-0.0015):(0.0005-0.0015):(0.0005-0.0015):(0.0005-0.0015).

7. The shampoo granules as described in any one of claims 1-3, characterized in that, The adsorbent includes modified corn starch; the humectant includes betaine; the hair conditioning agent includes guar gum hydroxypropyltrimethylammonium chloride; and the thickener includes hydroxypropyl methylcellulose.

8. The shampoo granules as described in any one of claims 1-3, characterized in that, The anti-caking agent includes magnesium stearate; the pH adjuster includes citric acid; the preservative includes chlorphenesin and / or benzyl alcohol; and the fragrance includes flavoring.

9. The shampoo granules according to any one of claims 1-8, characterized in that, The method for preparing the shampoo granules includes the following steps: S1. Mix surfactants, adsorbents, humectants, anti-caking agents, hair conditioning agents, fragrances, pH adjusters, preservatives, and softeners evenly, and then pulverize them into a uniform powder. S2. Mix the thickener with water to prepare a thickener aqueous solution with a concentration of 0.4-0.6%. Then add the powder described in step S1 into the granulator. Spray the thickener aqueous solution into the granulator through a spraying device. Dry at high temperature to produce granules. S3. Screen the particles to 10-100 mesh to obtain the shampoo particles.

10. The shampoo granules as described in claim 9, characterized in that, In step S2, the mass ratio of the powder to the thickener aqueous solution is 1:0.3.

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