A shampoo for improving scalp sensitivity, soothing and repairing hair and a preparation method thereof

Abstract

The present application relates to the technical field of daily chemical products, and specifically discloses a shampoo for improving scalp sensitivity, soothing and repairing, and a preparation method thereof. A shampoo for improving scalp sensitivity, soothing and repairing, the raw materials of the shampoo include sodium laureth sulfate, guar hydroxypropyltrimethylammonium chloride, polyquaternium-47, cocamide MEA, sodium citrate, citric acid, sodium chloride, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives, cocamidopropyl betaine, styrene acrylate copolymer, polydimethylsiloxane, bis-aminopropyl polydimethylsiloxane, hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, hydrolyzed keratin, and plant-derived ingredients that can help improve scalp sensitivity, and the balance is deionized water.

Description

Technical Field

[0001] The present application relates to the technical field of daily chemical products, and in particular to a shampoo for improving scalp sensitivity, soothing and repairing hair, and a preparation method thereof. Background Art

[0002] At present, most shampoo formulas on the market generally focus on the effects of cleaning and removing dandruff or nourishing hair, while relatively less attention is paid to the problem of scalp sensitivity. Although there are some shampoos suitable for sensitive scalps, these products often only reduce certain ingredients that may irritate the skin, and do not really solve the problem from the root, resulting in limited use effects. Some products for sensitive scalps usually adopt two strategies to reduce irritation: one is to reduce the content of surfactants or choose mild surfactants, such as coconut oil glucoside, sodium lauroyl glutamate, etc.; the other is to add some natural plant extracts with anti-inflammatory and sedative effects, such as chamomile extract, aloe vera juice, etc. However, these measures still seem to be inadequate for protection and support in severe sensitive cases and cannot meet the needs of consumers. Summary of the invention

[0003] In order to improve the problem of scalp sensitivity, the present application provides a shampoo for improving scalp sensitivity, soothing and repairing hair, and a preparation method thereof.

[0004] In the first aspect, the present application provides a shampoo for improving scalp sensitivity and soothing and repairing hair, which adopts the following technical solution: A shampoo for improving scalp sensitivity and soothing and repairing. The raw materials of the shampoo include the following components in percentage by weight: 4-15% sodium laureth sulfate, 0.2-1% guar hydroxypropyltrimethylammonium chloride, 0.1-1% polyquaternium-47, 0.5-2.5% cocamide MEA, 0.2-0.8% sodium citrate, 0.05-0.5% citric acid, 0.2-2% sodium chloride, 0.1-3% glycyrrhizic acid and its derivatives, 0.1-3% salicylic acid and its derivatives Derivative 0.1-1%, cocamidopropyl betaine 0.2-1%, styrene acrylate copolymer 0.2-1%, polydimethylsiloxane 0.3-5%, bis-aminopropyl polydimethylsiloxane 0.3-5%, hydroxypropyltrimonium chloride hydrolyzed collagen 0.03-1%, gliadin 0.05-1%, hydrolyzed keratin 0.05-1%, plant-derived ingredients that can help improve scalp sensitivity 0.05-5%, and the balance is deionized water.

[0005] By adopting the above technical scheme, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives, and plant-derived ingredients that can help improve scalp sensitivity constitute the functional component for improving scalp sensitivity, and hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, and hydrolyzed keratin constitute the soothing and repairing protein component. By utilizing the synergistic effect of the functional component for improving scalp sensitivity and the soothing and repairing protein component, the problem of scalp sensitivity is improved, and the problem of uniform protein deposition on the scalp and hair can also be relieved.

[0006] In a specific embodiment, the plant-derived ingredients that can help improve scalp sensitivity include one or more of medicinal peony root extract, chamomile extract, aloe extract, phellodendron extract, atractylodes rhizome extract, and scutellaria root extract.

[0007] By adopting the above technical scheme, medicinal peony root extract, chamomile extract, aloe extract, phellodendron extract, atractylodes rhizome extract, and scutellaria root extract have certain anti-inflammatory and sedative effects, thereby improving the problem of scalp sensitivity.

[0008] In a specific embodiment, the raw materials of the shampoo further include 0.03-0.05% by weight of allantoin and 0.03-0.05% by weight of thymol.

[0009] By adopting the above technical solution, thymol can effectively inhibit the excessive proliferation of Malassezia, restore the balance of the scalp microbial membrane, reduce the production of inflammatory factors, and protect the stratum corneum from damage. Allantoin can effectively relieve scalp inflammatory reactions, reduce redness, swelling and itching, and has good skin affinity and permeability. Therefore, the combination of the two can help improve scalp sensitivity symptoms.

[0010] In a specific embodiment, the raw materials of the shampoo further include 0.03-0.05% by weight of natural plant essential oils, and the natural plant essential oils include one or more of tea tree oil, lavender oil, rosemary oil, and neroli oil.

[0011] By adopting the above technical solution, the addition of natural plant essential oil can not only enhance the user experience, but also has the effect of soothing the scalp and relieving stress.

[0012] In a specific embodiment, the raw materials of the shampoo further include 0.05-0.1% by weight of a moisturizer, and the moisturizer includes one or more of glycerin, propylene glycol, and hyaluronic acid.

[0013] By adopting the above technical solution, glycerin, propylene glycol and hyaluronic acid are used as moisturizers to effectively improve the moisturizing performance of shampoo, relieve dry scalp, enhance the skin barrier function, thereby reducing the itching and discomfort caused by dry scalp and further alleviating scalp sensitivity problems.

[0014] In a specific embodiment, the raw materials of the shampoo further include 0.3-1% by weight of daily-use fragrance.

[0015] By adopting the above technical solution, the addition of daily fragrance can further improve the user experience.

[0016] In a specific embodiment, the raw materials of the shampoo further include 0.2-1% by weight of a preservative, and the preservative includes one or a mixture of two of sodium benzoate, potassium sorbate, and phenoxyethanol.

[0017] In the second aspect, the present application provides a method for preparing a soothing and repairing shampoo for improving scalp sensitivity, which adopts the following technical solution: A method for preparing a shampoo for improving scalp sensitivity and soothing and repairing hair, comprising the following steps: Preparation of material A: Start stirring, and stir and mix 35%-45% by mass of deionized water, guar hydroxypropyltrimethylammonium chloride, polyquaternium-47 and sodium laureth sulfate at a speed of 50-60 r / min to obtain material A; Preparation of material B: heating at 70-75°C, adding cocamide MEA, sodium citrate, citric acid, sodium chloride, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives to material A in sequence, heating to 80-85°C, stirring at a speed of 40-50 r / min for 15-20 min, to obtain material B; Preparation of material C: Cool down to 45-50°C, add cocamidopropyl betaine, styrene acrylate copolymer and 5%-15% by mass of deionized water to material B, stir at a speed of 50-60r / min for 10-15min to obtain material C; Preparation of shampoo: cool down to 40-45°C, add polydimethylsiloxane, bis-aminopropyl polydimethylsiloxane, hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, hydrolyzed keratin, plant-derived ingredients that can help improve scalp sensitivity, the remaining deionized water and other raw materials to material C, stir and mix evenly to obtain shampoo.

[0018] By adopting the above technical scheme, sodium laureth sulfate, guar hydroxypropyltrimethylammonium chloride, polyquaternium-47 and part of deionized water are first mixed to obtain material A, then cocamide MEA, sodium citrate, citric acid, sodium chloride, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives are added to material A, and stirred evenly to obtain material B, and then cocamidopropyl betaine, styrene acrylate copolymer and part of deionized water are added to material B, and stirred evenly to obtain material C, and finally polydimethylsiloxane, bis-aminopropyl polydimethylsiloxane, hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, hydrolyzed keratin, plant-derived ingredients that can help improve scalp sensitivity, the remaining deionized water and other raw materials are added to material C, and stirred to obtain a shampoo that can improve scalp sensitivity.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives, and plant-derived ingredients that can help improve scalp sensitivity constitute the functional component for improving scalp sensitivity, and hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, and hydrolyzed keratin constitute the soothing and repairing protein component. The synergistic effect of the functional component for improving scalp sensitivity and the soothing and repairing protein component is utilized to improve the scalp sensitivity problem, and can also relieve the problem of uniform protein deposition on the scalp and hair; 2. Thymol in this application can effectively inhibit the excessive proliferation of Malassezia, restore the balance of the scalp microbial membrane, reduce the production of inflammatory factors, and protect the stratum corneum from damage. Allantoin can effectively relieve scalp inflammatory reactions, reduce redness, swelling and itching, and has good skin affinity and permeability. Therefore, the combination of the two can help improve scalp sensitivity symptoms; 3. The method of the present application is to first mix sodium laureth sulfate, guar hydroxypropyltrimonium chloride, polyquaternium-47 and part of deionized water to obtain material A, then add cocamide MEA, sodium citrate, citric acid, sodium chloride, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives to material A, stir evenly to obtain material B, then add cocamidopropyl betaine, styrene acrylate copolymer and part of deionized water to material B, stir evenly to obtain material C, finally add polydimethylsiloxane, bis-aminopropyl polydimethylsiloxane, hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, hydrolyzed keratin, plant-derived ingredients that can help improve scalp sensitivity, the remaining deionized water and other raw materials to material C, stir to obtain a shampoo that can improve scalp sensitivity. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with embodiments.

[0021] All raw materials in the examples are commercially available. Among them, daily-use flavors include but are not limited to a mixture of one or more of citrus flavors, fruity flavors, mint flavors, bean flavors, spicy flavors, dairy flavors, meaty flavors, and nut flavors, and mint flavors are preferred in this application; glycyrrhizic acid and its derivatives are glycyrrhizic acid and its derivatives, and glycyrrhizic acid is preferred in this application; salicylic acid and its derivatives are salicylic acid and its derivatives, and salicylic acid is preferred in this application; styrene acrylate copolymer CAS number: 9005-00-9; natural plant essential oils include but are not limited to a mixture of one or more of tea tree oil, lavender oil, rosemary oil, and neroli oil, and tea tree oil is preferred in this application; moisturizers include but are not limited to a mixture of one or more of glycerin, propylene glycol, and hyaluronic acid, and propylene glycol is preferred in this application; preservatives include but are not limited to a mixture of one or two of sodium benzoate, potassium sorbate, and phenoxyethanol, and potassium sorbate is preferred in this application. Example

[0022] Example 1 Example 1 provides a method for preparing a shampoo for improving scalp sensitivity and soothing and repairing hair, comprising the following steps: Preparation of material A: Turn on stirring, and stir and mix 35% by weight of the remaining deionized water, 0.2 kg of guar hydroxypropyltrimethylammonium chloride, 0.1 kg of polyquaternium-47 and 4 kg of sodium laureth sulfate at a speed of 50 r / min to obtain material A; Preparation of material B: 0.5 kg of cocamide MEA, 0.2 kg of sodium citrate, 0.05 kg of citric acid, 0.2 kg of sodium chloride, 0.1 kg of glycyrrhizic acid and its derivatives, and 0.1 kg of salicylic acid and its derivatives were added to material A in sequence at 70°C, the temperature was raised to 80°C, and stirred at a speed of 40 r / min for 20 min to obtain material B; Preparation of material C: Cool to 45°C, add 0.2 kg of cocamidopropyl betaine, 0.2 kg of styrene acrylate copolymer and 5% by weight of deionized water to material B, and stir at a speed of 50 r / min for 15 min to obtain material C; Preparation of shampoo: cool to 40°C, add 0.3kg of polydimethylsiloxane, 0.3kg of bis-aminopropyl polydimethylsiloxane, 0.03kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.05kg of gliadin, 0.05kg of hydrolyzed keratin, 0.05kg of plant-derived ingredients that can help improve scalp sensitivity, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo; the plant-derived ingredient that can help improve scalp sensitivity is medicinal peony root extract.

[0023] Example 2 Example 2 provides a method for preparing a shampoo for improving scalp sensitivity and soothing and repairing hair, comprising the following steps: Preparation of material A: Start stirring, and stir and mix 40% of the remaining deionized water, 0.6 kg of guar hydroxypropyltrimethylammonium chloride, 0.5 kg of polyquaternium-47, and 9.5 kg of sodium laureth sulfate at a weight ratio of 50 r / min to obtain material A; Preparation of material B: heating at 70°C, adding 1.5kg of cocamide MEA, 0.5kg of sodium citrate, 0.1kg of citric acid, 1.1kg of sodium chloride, 1.5kg of glycyrrhizic acid and its derivatives, and 1.5kg of salicylic acid and its derivatives to material A in sequence, heating to 80°C, stirring at a speed of 40r / min for 20min, to obtain material B; Preparation of material C: Cool to 45°C, add 0.6 kg of cocamidopropyl betaine, 0.6 kg of styrene acrylate copolymer and 10% by weight of deionized water to material B, and stir at a speed of 50 r / min for 15 min to obtain material C; Preparation of shampoo: cool to 40°C, add 2.6 kg of polydimethylsiloxane, 2.6 kg of bis-aminopropyl polydimethylsiloxane, 0.1 kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1 kg of gliadin, 0.1 kg of hydrolyzed keratin, 0.1 kg of plant-derived ingredients that can help improve scalp sensitivity, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo; the plant-derived ingredient that can help improve scalp sensitivity is medicinal peony root extract.

[0024] Example 3 Example 3 provides a method for preparing a shampoo for improving scalp sensitivity and soothing and repairing hair, comprising the following steps: Preparation of material A: Start stirring, and stir and mix 45% of the remaining deionized water, 1 kg of guar hydroxypropyltrimethylammonium chloride, 1 kg of polyquaternium-47, and 15 kg of sodium laureth sulfate at a weight ratio at a speed of 50 r / min to obtain material A; Preparation of material B: Heat to 70°C, add 2.5kg of cocamide MEA, 0.8kg of sodium citrate, 0.5kg of citric acid, 2kg of sodium chloride, 3kg of glycyrrhizic acid and its derivatives, and 1kg of salicylic acid and its derivatives to material A in sequence, heat to 80°C, and stir at 40r / min for 20min to obtain material B; Preparation of material C: Cool to 45°C, add 1 kg of cocamidopropyl betaine, 1 kg of styrene acrylate copolymer and 15% by weight of deionized water to material B, and stir at a speed of 50 r / min for 15 min to obtain material C; Preparation of shampoo: cool to 40°C, add 5kg of polydimethylsiloxane, 5kg of bis-aminopropyl polydimethylsiloxane, 1kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 1kg of gliadin, 1kg of hydrolyzed keratin, 5kg of plant-derived ingredients that can help improve scalp sensitivity, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo; the plant-derived ingredient that can help improve scalp sensitivity is medicinal peony root extract.

[0025] Example 4 Example 4 provides a method for preparing a shampoo for improving scalp sensitivity and soothing and repairing hair, comprising the following steps: Preparation of material A: Start stirring, and stir and mix 40% by weight of the remaining deionized water, 0.6 kg of guar hydroxypropyltrimethylammonium chloride, 0.5 kg of polyquaternium-47, and 9.5 kg of sodium laureth sulfate at a speed of 55 r / min to obtain material A; Preparation of material B: Heat to 72.5°C, add 1.5kg of cocamide MEA, 0.5kg of sodium citrate, 0.1kg of citric acid, 1.1kg of sodium chloride, 1.5kg of glycyrrhizic acid and its derivatives, and 1.5kg of salicylic acid and its derivatives to material A in sequence, heat to 82.5°C, and stir at 45r / min for 17min to obtain material B; Preparation of material C: Cool to 47.5°C, add 0.6 kg of cocamidopropyl betaine, 0.6 kg of styrene acrylate copolymer and 10% by weight of deionized water to material B, and stir at a speed of 55 r / min for 12 min to obtain material C; Preparation of shampoo: cool to 42.5°C, add 2.6 kg of polydimethylsiloxane, 2.6 kg of bis-aminopropyl polydimethylsiloxane, 0.1 kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1 kg of gliadin, 0.1 kg of hydrolyzed keratin, 0.1 kg of plant-derived ingredients that can help improve scalp sensitivity, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo; the plant-derived ingredient that can help improve scalp sensitivity is medicinal peony root extract.

[0026] Example 5 Example 5 provides a method for preparing a shampoo for improving scalp sensitivity and soothing and repairing hair, comprising the following steps: Preparation of material A: Start stirring, and stir and mix 40% by weight of the remaining deionized water, 0.6 kg of guar hydroxypropyltrimethylammonium chloride, 0.5 kg of polyquaternium-47, and 9.5 kg of sodium laureth sulfate at a speed of 60 r / min to obtain material A; Preparation of material B: Heat to 75°C, add 1.5kg of cocamide MEA, 0.5kg of sodium citrate, 0.1kg of citric acid, 1.1kg of sodium chloride, 1.5kg of glycyrrhizic acid and its derivatives, and 1.5kg of salicylic acid and its derivatives to material A in sequence, heat to 85°C, and stir at a speed of 50r / min for 15min to obtain material B; Preparation of material C: Cool to 50°C, add 0.6 kg of cocamidopropyl betaine, 0.6 kg of styrene acrylate copolymer and 10% by weight of deionized water to material B, and stir at 60 r / min for 10 min to obtain material C; Preparation of shampoo: cool to 45°C, add 2.6 kg of polydimethylsiloxane, 2.6 kg of bis-aminopropyl polydimethylsiloxane, 0.1 kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1 kg of gliadin, 0.1 kg of hydrolyzed keratin, 0.1 kg of plant-derived ingredients that can help improve scalp sensitivity, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo; the plant-derived ingredient that can help improve scalp sensitivity is medicinal peony root extract.

[0027] Example 6 The difference between Example 6 and Example 4 is that the plant-derived ingredient that can help improve scalp sensitivity is a mixture of medicinal peony root extract, chamomile extract, and aloe extract, and the weight ratio of the medicinal peony root extract, chamomile extract, and aloe extract is 1:1:1; the remaining steps are consistent with Example 4.

[0028] Example 7 The difference between Example 7 and Example 6 is that, in the preparation of shampoo, the temperature is lowered to 42.5°C, 2.6 kg of polydimethylsiloxane, 2.6 kg of bis-aminopropyl polydimethylsiloxane, 0.1 kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1 kg of gliadin, 0.1 kg of hydrolyzed keratin, 0.1 kg of plant-derived ingredients that can help improve scalp sensitivity, 0.04 kg of allantoin, 0.04 kg of thymol, and the remaining deionized water are added to material C, and the mixture is stirred and mixed to obtain shampoo; the remaining steps are consistent with Example 6.

[0029] Example 8 The difference between Example 8 and Example 7 is that, in the preparation of shampoo, the temperature is lowered to 42.5°C, 2.6kg of polydimethylsiloxane, 2.6kg of bis-aminopropyl polydimethylsiloxane, 0.1kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1kg of gliadin, 0.1kg of hydrolyzed keratin, 0.1kg of plant-derived ingredients that can help improve scalp sensitivity, 0.04kg of allantoin, 0.04kg of thymol, 0.04kg of natural plant essential oil, and the remaining deionized water are added to material C, stirred and mixed evenly to obtain shampoo; wherein the natural plant essential oil is tea tree oil; and the remaining steps are consistent with Example 7.

[0030] Example 9 The difference between Example 9 and Example 8 is that, in the preparation of shampoo, the temperature is lowered to 42.5°C, 2.6kg of polydimethylsiloxane, 2.6kg of bis-aminopropyl polydimethylsiloxane, 0.1kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1kg of gliadin, 0.1kg of hydrolyzed keratin, 0.1kg of plant-derived ingredients that can help improve scalp sensitivity, 0.04kg of allantoin, 0.04kg of thymol, 0.04kg of natural plant essential oil, 0.07kg of moisturizer, and the remaining deionized water are added to material C, stirred and mixed evenly to obtain shampoo; wherein the natural plant essential oil is tea tree oil; the moisturizer is propylene glycol; and the remaining steps are consistent with Example 8.

[0031] Example 10 The difference between Example 10 and Example 9 is that, in the preparation of shampoo, the temperature is lowered to 42.5°C, 2.6kg of polydimethylsiloxane, 2.6kg of bis-aminopropyl polydimethylsiloxane, 0.1kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.1kg of gliadin, 0.1kg of hydrolyzed keratin, 0.1kg of plant-derived ingredients that can help improve scalp sensitivity, 0.04kg of allantoin, 0.04kg of thymol, 0.04kg of natural plant essential oil, 0.07kg of moisturizer, 0.7kg of daily flavor, 0.6kg of preservative, and the remaining deionized water are added to material C, stirred and mixed evenly to obtain shampoo; wherein the natural plant essential oil is tea tree oil; the moisturizer is propylene glycol; the daily flavor is a mint-type flavor; the preservative is potassium sorbate; and the remaining steps are consistent with Example 9.

[0032] Comparative Example Comparative Example 1 Comparative Example 1 provides a shampoo formula and a preparation method thereof, comprising the following steps: Preparation of material A: Turn on stirring, and stir and mix the remaining amount of deionized water with a weight ratio of 35%, 0.2 kg of guar hydroxypropyltrimethylammonium chloride, 0.1 kg of polyquaternium-47, and 4 kg of sodium laureth sulfate at a speed of 50 r / min to obtain material A; Preparation of material B: Heat to 70°C, add 0.5kg cocamide MEA, 0.2kg sodium citrate, 0.05kg citric acid and 0.2kg sodium chloride to material A in sequence, heat to 80°C, stir at 40r / min for 20min, and obtain material B; Preparation of material C: Cool to 45°C, add 0.2 kg of cocamidopropyl betaine, 0.2 kg of styrene acrylate copolymer and 5% by weight of deionized water to material B, and stir at a speed of 50 r / min for 15 min to obtain material C; Preparation of shampoo: cool to 40°C, add 0.3 kg of polydimethylsiloxane, 0.3 kg of bis-aminopropyl polydimethylsiloxane and the remaining deionized water to material C, stir and mix well to obtain shampoo.

[0033] Comparative Example 2 Comparative Example 2 provides a shampoo formula and a preparation method thereof, comprising the following steps: Preparation of material A: Turn on stirring, and stir and mix the remaining amount of deionized water with a weight ratio of 35%, 0.2 kg of guar hydroxypropyltrimethylammonium chloride, 0.1 kg of polyquaternium-47, and 4 kg of sodium laureth sulfate at a speed of 50 r / min to obtain material A; Preparation of material B: Heat to 70°C, add 0.5kg cocamide MEA, 0.2kg sodium citrate, 0.05kg citric acid, 0.2kg sodium chloride, 0.1kg glycyrrhizic acid and its derivatives, 0.1kg salicylic acid and its derivatives to material A in sequence, heat to 80°C, stir at 40r / min for 20min, and obtain material B; Preparation of material C: Cool to 45°C, add 0.2 kg of cocamidopropyl betaine, 0.2 kg of styrene acrylate copolymer and 5% by weight of deionized water to material B, and stir at a speed of 50 r / min for 15 min to obtain material C; Preparation of shampoo: cool to 40°C, add 0.3 kg of polydimethylsiloxane, 0.3 kg of bis-aminopropyl polydimethylsiloxane, 0.05 kg of a plant-derived ingredient that can help improve scalp sensitivity, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo; the plant-derived ingredient that can help improve scalp sensitivity is a medicinal peony root extract.

[0034] Comparative Example 3 Comparative Example 3 provides a shampoo formula and a preparation method thereof, comprising the following steps: Preparation of material A: Turn on stirring, and stir and mix the remaining amount of deionized water with a weight ratio of 35%, 0.2 kg of guar hydroxypropyltrimethylammonium chloride, 0.1 kg of polyquaternium-47, and 4 kg of sodium laureth sulfate at a speed of 50 r / min to obtain material A; Preparation of material B: Heat to 70°C, add 0.5kg cocamide MEA, 0.2kg sodium citrate, 0.05kg citric acid and 0.2kg sodium chloride to material A in sequence, heat to 80°C, stir at 40r / min for 20min, and obtain material B; Preparation of material C: Cool to 45°C, add 0.2 kg of cocamidopropyl betaine, 0.2 kg of styrene acrylate copolymer and 5% by weight of deionized water to material B, and stir at a speed of 50 r / min for 15 min to obtain material C; Preparation of shampoo: cool to 40°C, add 0.3 kg of polydimethylsiloxane, 0.3 kg of bis-aminopropyl polydimethylsiloxane, 0.03 kg of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.05 kg of gliadin, 0.05 kg of hydrolyzed keratin, and the remaining deionized water to material C, stir and mix evenly to obtain shampoo.

[0035] Performance testing Effect on improving scalp sensitivity: 130 scalp sensitive testers aged 20-40 were selected, with ten people in each group. The shampoos in different embodiments and comparative examples were used once a day. After three months of use, the scalp sensitivity problem was observed to see if it was improved, and the scores were given. Then the average value was taken. The higher the average value, the better the shampoo effect of this group. The scoring standard is as follows: 0 point means no obvious change, 1 point means slight improvement, 2 points means obvious improvement, and 3 points means no scalp sensitivity problem.

[0036] Table 1 Performance test results of shampoo In combination with Example 1 and Comparative Examples 1-3, the shampoo in Example 1 has the best effect on improving scalp sensitivity. It can be seen that when preparing shampoo, the functional components for improving scalp sensitivity composed of glycyrrhizic acid and its derivatives, salicylic acid and its derivatives, and plant-derived ingredients that can help improve scalp sensitivity, as well as the soothing and repairing protein components composed of hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, and hydrolyzed keratin are added, and the synergistic effect of the two is utilized to improve the effect of the shampoo on improving scalp sensitivity.

[0037] In combination with Examples 1-3, it can be seen that when preparing shampoo, the raw materials in Examples 1-3 are better matched, so that the obtained shampoo has a better effect of improving scalp sensitivity.

[0038] In combination with Example 2, Example 4 and Example 5, the shampoo in Example 4 has the best effect on improving scalp sensitivity. It can be seen that when preparing the shampoo, the preparation conditions in Example 4 are the best, and the shampoo obtained has the best effect.

[0039] Combining Example 4 and Example 6, the shampoo in Example 6 has a better effect on improving scalp sensitivity. It can be seen that when adding plant-derived ingredients that can help improve scalp sensitivity, a mixture of medicinal peony root extract, chamomile extract, and aloe extract is preferably added, which can further improve the effect of the shampoo.

[0040] Combining Example 6 and Example 7, the shampoo in Example 7 has a better effect on improving scalp sensitivity. It can be seen that when preparing the shampoo, allantoin and thymol are added to the raw materials. Thymol can effectively inhibit the excessive proliferation of Malassezia, restore the balance of the scalp microbial membrane, reduce the production of inflammatory factors, and protect the stratum corneum from damage. Allantoin can effectively relieve scalp inflammatory reactions, reduce redness and itching, and has good skin affinity and permeability. Therefore, the combination of the two can further improve the effect of shampoo on improving scalp sensitivity.

[0041] Combining Example 7 and Example 8, the shampoo in Example 8 has a better effect on improving scalp sensitivity. It can be seen that when preparing shampoo, adding natural plant essential oils to the raw materials can not only increase the user experience, but also has a certain effect of soothing the scalp.

[0042] Combining Example 8 and Example 9, the shampoo in Example 9 has a better effect on improving scalp sensitivity. It can be seen that when preparing shampoo, adding moisturizer to the raw materials can reduce the itching and discomfort caused by dry scalp, thereby further alleviating the problem of scalp sensitivity.

[0043] In combination with Example 9 and Example 10, it can be seen that when preparing shampoo, adding daily fragrances and preservatives to the raw materials can further improve the user experience and the storage time of the shampoo, but has little effect on alleviating the problem of scalp sensitivity.

[0044] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A soothing and repairing shampoo for improving scalp sensitivity, characterized by: The raw materials of the shampoo include the following components in weight percentage: 4-15% sodium laureth sulfate, 0.2-1% guar hydroxypropyltrimethylammonium chloride, 0.1-1% polyquaternium-47, 0.5-2.5% cocamide MEA, 0.2-0.8% sodium citrate, 0.05-0.5% citric acid, 0.2-2% sodium chloride, 0.1-3% glycyrrhizic acid and its derivatives, 0.1-1% salicylic acid and its derivatives, 0.2-1% cocamidopropyl betaine, 0.2-1% styrene acrylate copolymer, 0.3-5% polydimethylsiloxane, 0.3-5% bis-aminopropyl polydimethylsiloxane, 0.03-1% hydroxypropyltrimethylammonium chloride hydrolyzed collagen, 0.05-1% gliadin, 0.05-1% hydrolyzed keratin, 0.05-5% plant-derived ingredients that can help improve scalp sensitivity, and the balance is deionized water.

2. The soothing and repairing shampoo for improving scalp sensitivity according to claim 1, characterized in that: The plant-derived ingredients that can help improve scalp sensitivity include one or more of medicinal peony root extract, chamomile extract, aloe extract, phellodendron chinense extract, atractylodes rhizome extract, and scutellaria root extract.

3. The soothing and repairing shampoo for improving scalp sensitivity according to claim 1, characterized in that: The raw materials of the shampoo also include 0.03-0.05% by weight of allantoin and 0.03-0.05% by weight of thymol.

4. The soothing and repairing shampoo for improving scalp sensitivity according to claim 3, characterized in that: The raw materials of the shampoo also include 0.03-0.05% by weight of natural plant essential oil, and the natural plant essential oil includes one or more of tea tree oil, lavender oil, rosemary oil, and neroli oil.

5. The soothing and repairing shampoo for improving scalp sensitivity according to claim 1, characterized in that: The raw materials of the shampoo also include 0.05-0.1% by weight of a moisturizer, and the moisturizer includes one or more of glycerin, propylene glycol, and hyaluronic acid.

6. The soothing and repairing shampoo for improving scalp sensitivity according to claim 1, characterized in that: The raw materials of the shampoo also include 0.3-1% by weight of daily-use fragrance.

7. The soothing and repairing shampoo for improving scalp sensitivity according to claim 1, characterized in that: The raw materials of the shampoo also include 0.2-1% by weight of a preservative, and the preservative includes one or a mixture of two of sodium benzoate, potassium sorbate, and phenoxyethanol.

8. A method for preparing the shampoo for improving scalp sensitivity and soothing and repairing hair according to any one of claims 1 to 7, characterized in that: The following steps are involved: Preparation of material A: Start stirring, and stir and mix 35%-45% by mass of deionized water, guar hydroxypropyltrimethylammonium chloride, polyquaternium-47 and sodium laureth sulfate at a speed of 50-60 r / min to obtain material A; Preparation of material B: heating at 70-75°C, adding cocamide MEA, sodium citrate, citric acid, sodium chloride, glycyrrhizic acid and its derivatives, salicylic acid and its derivatives to material A in sequence, heating to 80-85°C, stirring at a speed of 40-50 r / min for 15-20 min, to obtain material B; Preparation of material C: Cool down to 45-50°C, add cocamidopropyl betaine, styrene acrylate copolymer and 5%-15% by mass of deionized water to material B, stir at a speed of 50-60r / min for 10-15min to obtain material C; Preparation of shampoo: cool down to 40-45°C, add polydimethylsiloxane, bis-aminopropyl polydimethylsiloxane, hydroxypropyltrimethylammonium chloride hydrolyzed collagen, gliadin, hydrolyzed keratin, plant-derived ingredients that can help improve scalp sensitivity, the remaining deionized water and other raw materials to material C, stir and mix evenly to obtain shampoo.

Images