Half-milk half-fog milky white cleaning composition for children

Abstract

The invention discloses a half-milk and half-fog milky white cleaning composition for children and application thereof, the half-milk and half-fog milky white cleaning composition for children comprises (a) salt of N-long-chain acyl amino acid, (b) free N-long-chain acyl amino acid, (c) hydrophilic nonionic surfactant, (d) ampholytic surfactant, (e) nonionic surfactant, and (f) water. And (c) the hydrophilic nonionic surfactant is selected from the group consisting of polyglycerol-3 methyl glucose distearate; the related half-milk half-fog milky white cleaning composition for children can be used for preparing children nursing materials.

Description

Technical Field

[0001] This invention relates to the field of cleaning and personal care technology, and in particular to a semi-emulsion, semi-mist milky white cleaning composition for children and its application in children's care products. Background Technology

[0002] In the research and development of daily chemical products and cosmetics, both "appearance" and "efficacy" often play important roles. Consumers expect personal care products to not only cleanse and care for their skin, but also provide a sense of beauty. In recent years, various products focusing on "appearance" have gradually entered the public eye. Examples include "suspended petal shower gel," colored shampoo beads, and color-changing shower gel.

[0003] Taking colored shower gel as an example, the purpose of coloring is usually achieved through pigments / pigments. However, the addition of pigments / pigments may cause some irritation to the system and have an adverse effect on safety and stability.

[0004] While anionic surfactants such as alkyl sulfates and polyoxyethylene alkyl sulfates have been widely used as surfactants in hair / body cleansing bases, they can sometimes cause dryness and irritation due to increased shampooing / showering frequency in recent years, thus necessitating cleaners with less irritation. Furthermore, these are petroleum-derived surfactants, which contradicts current trends towards sustainability and environmental protection.

[0005] The cosmetics and personal care industry has recognized the growing popularity and importance of sulfate-free and dioxane-free personal care cleaning products containing environmentally friendly, sustainable, and gentle surfactants. Amino acid-based surfactants are considered "greener," gentler, and more sustainable than traditional petroleum-based surfactants.

[0006] For children, the formula needs to be sufficiently safe, and the raw materials should be selected from natural and green sources as much as possible. Therefore, it is necessary to abandon traditional petroleum-based surfactants and create products with amino acid cleansing systems that are as safe as possible and have colors that children like. Summary of the Invention

[0007] The inventors discovered that for amino acid surfactant cleaning systems containing N-long-chain acyl amino acid salts, the synergistic effect of (c) a hydrophilic nonionic surfactant and (d) an amphoteric surfactant in the presence of free N-long-chain acyl amino acids can significantly improve the viscosity of the formulation.

[0008] For suitability for children, (c) the hydrophilic nonionic surfactant preferably does not have polyethylene oxide segments, but rather the hydrophilic group comprises polyglycerol units. Additionally, colors similar to those found in food and beverages tend to attract children's attention.

[0009] Specifically, the present invention provides the following technical solution.

[0010] The present invention provides a semi-emulsion, semi-mist, milky white cleaning composition for children, comprising (a) a salt of N-long-chain acyl amino acids, (b) free N-long-chain acyl amino acids, (c) a hydrophilic nonionic surfactant, and (d) an amphoteric surfactant.

[0011] Alternatively, the semi-emulsion, semi-mist, milky-white cleaning composition for children comprises (a') N-long-chain acyl amino acids partially neutralized with an alkali, (c) a hydrophilic nonionic surfactant, and (d) an amphoteric surfactant. Wherein, (a') the N-long-chain acyl amino acid partially neutralized with an alkali refers to the product after the alkali has partially neutralized the N-long-chain acyl amino acid; the final product in the semi-emulsion, semi-mist, milky-white cleaning composition for children consists of the salt of the N-long-chain acyl amino acid and unneutralized free N-long-chain acyl amino acids.

[0012] Alternatively, the semi-emulsion, semi-mist milky-white cleaning composition for children contains (a”) a base and N-long-chain acyl amino acids, with the base in fewer moles than the N-long-chain acyl amino acids, resulting in a neutralization degree of less than 100% for the N-long-chain acyl amino acids; (c) a hydrophilic nonionic surfactant; and (d) an amphoteric surfactant. Although the base and N-long-chain acyl amino acids are added to the formulation separately, they inevitably react. Due to the neutralization degree being less than 100%, what ultimately exists in the gel are the salts of the N-long-chain acyl amino acids and unneutralized free N-long-chain acyl amino acids.

[0013] The inventors were surprised to discover that when (c) the hydrophilic nonionic surfactant was polyglycerol-3-methylglucose distearate, a semi-emulsion, semi-mist milky-white cleaning product could be obtained, which visually resembled Yakult, thus easily attracting the attention of children. Furthermore, polyglycerol-3-methylglucose distearate itself is 100% naturally derived and has a high safety profile.

[0014] For the N-long-chain acyl amino acid in the composition, the N-long-chain acyl group in the N-long-chain acyl amino acid is derived from a saturated or unsaturated straight-chain or branched fatty acid with 8 to 22 carbon atoms. Further, the N-long-chain acyl group in the N-long-chain acyl amino acid is selected from one or more of octanoyl, decanoyl, undecanoyl, lauroyl, myristoyl, pentadecanoyl, palmitoyl, stearoyl, oleoyl, linoleoyl, isostearoyl, coconut oil fatty acyl, and palm oil fatty acyl, preferably coconut oil fatty acyl or lauroyl, and most preferably lauroyl.

[0015] The amino acids in the N-long-chain acyl amino acids are derived from one or more of glycine, alanine, glutamic acid, sarcosine, aspartic acid, leucine, isoleucine, valine, threonine, proline, phenylalanine, arginine, lysine, and (methyl)taurine. Further, the amino acids in the N-long-chain acyl amino acids are derived from one or more of alanine, glycine, glutamic acid, sarcosine, arginine, lysine, and (methyl)taurine, preferably alanine, and most preferably L-alanine. The N-long-chain acyl (methyl)taurine described in this invention refers to N-long-chain acylmethyl taurine or N-long-chain acyl taurine.

[0016] As an example, N-long-chain acyl amino acids can be selected from cocoyl alanine, lauroyl alanine, cocoyl sarcosine, lauroyl sarcosine, lauroyl glutamic acid, cocoyl glutamic acid, oleyl glutamic acid, cocoyl glycine, lauroyl glycine, stearoyl glutamic acid, etc.

[0017] This invention discovers that N-long-chain acyl amino acids with different structures exhibit varying thickening abilities. Free N-long-chain acylglutamic acid has a weaker thickening effect than its counterparts, N-long-chain acylalanine, glycine, and sarcosine. N-long-chain acylglycine possesses good thickening ability, but its formulation is prone to precipitation and exhibits poor stability, making it suitable for paste-like products where high transparency is not required. The surprising discovery of this invention is that, under the same formulation conditions, lauroylalanine's thickening ability far surpasses that of other long-chain acyl amino acids, being 5-10 times stronger than similar structures such as lauroylsarcosine and cocoylalanine (cocoylaminopropionic acid). This superior, much-anticipated thickening ability can completely solve the problem of poor thickening in amino acid surfactant systems and can completely replace the traditional AES system.

[0018] (a) A salt of an N-long-chain acyl amino acid refers to a salt formed by an N-long-chain acyl amino acid and a base. The base is selected from one or more of inorganic bases, organic amines, and basic amino acids. The inorganic base is selected from one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, and potassium carbonate, preferably sodium hydroxide or potassium hydroxide. The organic amine is selected from amines, alkanolamines, etc. For basic amino acids, it is selected from one or more of arginine, lysine, citrulline, ornithine, creatine, histidine, diaminobutyric acid, and diaminopropionic acid, preferably arginine and / or lysine, and most preferably L-arginine. The bases described in (a') and (a”) also have the same definition. From the perspective of suitability for children, the salt of an N-long-chain acyl amino acid is particularly preferably an arginine salt of an N-long-chain acyl amino acid; the base is preferably arginine.

[0019] N-long-chain acyl amino acids can be directly mixed into commercially available long-chain acyl amino acid salts such as Puji's YB02-30 (sodium cocoylaminopropionate), AS02-30 (sodium lauroyl sarcosinate), Tianci's AMIN LS30 (sodium lauroyl sarcosinate), Suzhou Weimei's LA-Arg 30 (lauroyl alanine arginine salt), and LA-Na 30 (sodium lauroyl alanine), or N-long-chain acyl amino acids can be directly mixed into a formulation containing (a) N-long-chain acyl amino acid salts to obtain (a) N-long-chain acyl amino acid salts and (b) free N-long-chain acyl amino acids.

[0020] Alternatively, N-long-chain acyl amino acids can be partially neutralized with a base to obtain (a') N-long-chain acyl amino acids partially neutralized with a base. Alternatively, a base and an N-long-chain acyl amino acid can be added to the formulation separately (corresponding to (a')). Since the base is used for partial neutralization and the N-long-chain acyl amino acid is in excess, the system will contain both the neutralized N-long-chain acyl amino acid salt and the unneutralized free N-long-chain acyl amino acid, which is essentially equivalent to (a) the salt of the N-long-chain acyl amino acid + (b) the free N-long-chain acyl amino acid.

[0021] Increasing the amount of N-long-chain acyl amino acid salts and free N-long-chain acyl amino acids can improve the viscosity of the composition. However, excessive amounts will result in an overly viscous formulation, while insufficient amounts will lead to insufficient viscosity. Formulators can choose the appropriate amount based on the viscosity requirements of the actual product; alternatively, if the viscosity is too high, it can be reduced by diluting with water.

[0022] Further, the weight percentage of (a), (a'), or (a”) in the thickening composition is 3-30 wt%, preferably 5-25 wt%, more preferably 8-15 wt%. For example, it can be 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%, 11 wt%, 12 wt%, 13 wt%, 14 wt%, 15 wt%, 16 wt%, 17 wt%, 18 wt%, 19 wt%, 20 wt%, 21 wt%, 22 wt%, 23 wt%, 24 wt%, 25 wt%, 26 wt%, 2 7 wt%, 28 wt%, 29 wt%, 30 wt%. Appropriate amounts of N-long-chain acyl amino acids and / or salts allow the formulation to balance cleaning power and washing feel. Particularly preferred is that the N-long-chain acyl amino acid and / or salt is the main surfactant in the formulation; the main surfactant is defined as the surfactant present in the highest weight percentage among all surfactants. Preferably, the main surfactant accounts for more than 50 wt% of all surfactants; for example, more than 55 wt%, 60 wt%, 65 wt%, 70 wt%, 75 wt%, or 80 wt%.

[0023] Furthermore, (b) the free N-long-chain acyl amino acid in the thickening composition has a weight percentage of 0.3-8 wt%, preferably 0.5-6 wt%, and more preferably 1-5 wt%. For example, it can be 0.5 wt%, 1 wt%, 2 wt%, 3 wt%, 4 wt%, 5 wt%, 6 wt%, 7 wt%, or 8 wt%. A suitable amount of free N-long-chain acyl amino acid can balance the viscosity, washability, and low-temperature stability of the formulation.

[0024] Furthermore, for (a') and (a”), the degree of neutralization is controlled to be above 65%, preferably above 70%, more preferably above 75%; and the degree of neutralization is below 95%, preferably below 90%, more preferably below 85%. For example, the degree of neutralization is 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%, 81%, 82%, 83%, 8 4%, 85%, 86%, 87%, 88%, 89%, 90%. Too low a neutralization rate results in poor low-temperature stability and easy precipitation in the formulation. Too high a neutralization rate results in insufficient free N-long-chain acyl amino acids, limiting the thickening effect. The aforementioned neutralization degree refers to the percentage of N-long-chain acyl amino acids that are neutralized. For example, 80% neutralization means that 80% of all N-long-chain acyl amino acids are neutralized by alkali to form salts, leaving 20% ​​as free N-long-chain acyl amino acids.

[0025] Furthermore, for (a”), the N-long-chain acyl amino acid in the thickening composition is 3-30 wt%, preferably 5-25 wt%, more preferably 8-15 wt%, for example, 4 wt%, 5 wt%, 6 wt%, 7 wt%, 8 wt%, 9 wt%, 10 wt%, 11 wt%, 12 wt%, 13 wt%, 14 wt%, 15 wt%, 16 wt%, 17 wt%, 18 wt%, 19 wt%, 20 wt%. The amount of alkali is adjusted according to the selected degree of neutralization.

[0026] The synthesis process of N-long-chain acyl amino acid surfactants can refer to the general synthesis methods of N-acyl amino acid type surfactants, and is divided into direct methods and indirect methods. Direct synthesis methods from fatty acid raw materials include enzymatic synthesis and dehydration condensation. Indirect synthesis methods include acylation of fatty acid acyl chlorides, hydrolytic acylation of fatty acid nitriles, acylation of fatty acid anhydrides, and amide carbonylation reactions. A preferred method is preparation via the amino reaction of fatty acyl chlorides with amino acids (Shotten-Baumann condensation reaction or Shotten-Baumann reaction).

[0027] A typical preparation process suitable for this invention is as follows: amino acids and sodium hydroxide are dissolved in water or a mixture of water and acetone to obtain an amino acid salt solution; then lauroyl chloride and sodium hydroxide solution are slowly added dropwise to the amino acid salt solution, controlling the pH of the reaction system; after the addition is complete, post-processing of the product is performed. Representative methods are disclosed in CN1798821A, US6703517B2, CN102875409B, JPH0570418A, etc.

[0028] For the post-processing of N-long-chain acyl amino acid products, conventional methods such as recrystallization, water washing, and drying can be used. A preferred post-processing step includes the following steps: mixing the crude N-long-chain acyl amino acid with a solvent, optionally stirring, and controlling the temperature T of the mixed system to be above the melting point of the long-chain fatty acid and below the melting point of the N-long-chain acyl amino acid. The solvent is water, an organic solvent, or a mixture of water and an organic solvent. After temperature control, solid-liquid separation is performed. Related methods are disclosed by the inventors in CN202210867760.7 and PCT / CN2022 / 107270, the contents of which are incorporated herein by reference.

[0029] For component (c), hydrophilic nonionic surfactants, this refers to a class of nonionic surfactants that are hydrophilic and can disperse or dissolve in water to form emulsions or translucent to transparent solutions. In this invention, polyglycerol-3-methylglucose distearate is specifically selected.

[0030] The amount of (c) hydrophilic nonionic surfactant is related to the amount of free N-long-chain acyl amino acid and amphoteric surfactant. If the amount of free N-long-chain acyl amino acid or amphoteric surfactant is high, the amount of (c) hydrophilic nonionic surfactant can be appropriately reduced. Conversely, if the amount of free N-long-chain acyl amino acid or amphoteric surfactant is low, the amount of (c) hydrophilic nonionic surfactant can be appropriately increased. Generally, the weight percentage (all weight percentages after conversion to 100%) of (c) hydrophilic nonionic surfactant in the semi-emulsion, semi-mist, milky white cleaning composition for children is 0.05-5 wt%, preferably 0.1-4 wt%, more preferably 0.5-3 wt%. For example, it can be 0.1 wt%, 0.2 wt%, 0.3 wt%, 0.4 wt%, 0.5 wt%, 0.7 wt%, 1 wt%, 2 wt%, 3 wt%, 4 wt%, or 5 wt%. (c) Excessive use of hydrophilic nonionic surfactants, although beneficial for thickening, can affect the washing feel / touch of the product to some extent.

[0031] For component (d), amphoteric surfactants refer to surfactants whose molecular structure contains both anionic groups (such as carboxylate, sulfonate, and phosphate groups) and cationic groups (such as ammonium and quaternary ammonium groups). Representative examples include betaine derivatives, imidazoline derivatives, amine oxide derivatives, and sodium amphoteric acetate derivatives. This invention has found that betaine derivatives have the best thickening effect, safety, and user experience.

[0032] Furthermore, (d) the amphoteric surfactant is a betaine-based amphoteric surfactant. The betaine-based amphoteric surfactant is selected from one or more of alkyl betaine (Formula I), alkylamidopropyl betaine (Formula II), alkyl hydroxysulfonyl betaine (Formula III), and alkylamidopropyl hydroxysulfonyl betaine (Formula IV).

[0033]

[0034] The present invention has found that the alkyl groups in betaine-based amphoteric surfactants are particularly preferably saturated, while unsaturated chains (such as oleic acid groups) reduce hydrophilicity and are not conducive to thickening.

[0035] In betaine-based amphoteric surfactants, the average number of carbon atoms in the hydrophobic chain is preferably greater than 10 and less than 16. Too many carbon atoms (e.g., octadecyl) or too few carbon atoms (e.g., octyl, decyl) are both detrimental to thickening.

[0036] This invention also specifically discovers that amide bonds have a detrimental effect on thickening and low-temperature stability; therefore, betaine-based amphoteric surfactants that do not contain amide bonds are preferred. Furthermore, the higher the hydrophilicity of an amphoteric surfactant, the more beneficial it is for thickening. Therefore, this invention particularly prefers alkyl hydroxysulfonate betaines, especially one or more of lauryl hydroxysulfonate betaine, cocoyl hydroxysulfonate betaine, or dodecyltetradecyl dimethyl hydroxypropyl sulfonate betaine.

[0037] The amount of (d) amphoteric surfactant used is related to the amount of free N-long-chain acyl amino acids and nonionic surfactants. If the amount of free N-long-chain acyl amino acids or nonionic surfactants is high, the amount of (d) amphoteric surfactant can be appropriately reduced. Conversely, if the amount of free N-long-chain acyl amino acids or nonionic surfactants is low, the amount of (d) amphoteric surfactant can be appropriately increased. Generally, the weight percentage of (d) amphoteric surfactant in the thickening composition is 0.1-15 wt%, preferably 1-10 wt%, more preferably 2-8 wt%. For example, it can be 0.5 wt%, 0.7 wt%, 1 wt%, 2 wt%, 3 wt%, 4 wt%, 5 wt%, 6 wt%, 7 wt%, or 8 wt%. As the amount of (d) amphoteric surfactant increases, the improvement in its thickening effect gradually weakens, and it will also affect the wash feel / touch of the product.

[0038] Considering that N-long-chain acyl amino acids / salts, especially lauroyl alanine / salt, have very good cleaning power and a refreshing washing feel, it is preferable to use a larger amount of lauroyl alanine / salt as the main surfactant. Generally, it is preferred that the content of lauroyl alanine / salt in the thickening composition is 5 wt% or more, preferably 8 wt% or more, and more preferably 10 wt% or more.

[0039] The semi-emulsion, semi-mist, milky-white cleaning composition for children may further contain other ingredients such as preservatives, fragrances / perfumes, conditioning agents, chelating agents, extracts, amino acids, nucleic acids, vitamins, enzymes, anti-inflammatory agents, bactericides, antioxidants, UV absorbers, antiperspirants, pH adjusters, etc.

[0040] The semi-emulsion, semi-mist, milky-white cleaning composition for children of the present invention can be used to prepare child care products. These child care products include children's bath wash, children's shampoo, children's facial cleanser, or children's hand soap.

[0041] In each implementation, details such as the selection of types and dosages not discussed can be referred to the relevant guidance of other implementations if there is no conflict in the content. For the sake of brevity, each implementation has not been described in detail.

[0042] Unless otherwise specified, "above," "below," and "A~B" in this invention all include the stated number. Since the solid content of raw materials varies among different manufacturers, the weight percentage (wt%) of each raw material mentioned in this invention refers to the weight percentage of that component after conversion to 100%. For example, if 10wt% sodium cocoaminopropionate (30% solid content) is added, the actual weight percentage of sodium cocoaminopropionate after conversion to 100% is 3wt%.

[0043] Compared with the prior art, the present invention has the following beneficial technical effects:

[0044] 1. This invention is the first to discover that, in the presence of free N-long-chain acyl amino acids, the combination of (c) a hydrophilic nonionic surfactant and (d) an amphoteric surfactant, with the synergistic effect of the three, can significantly improve the viscosity of the formulation.

[0045] 2. The inventors have made a surprising discovery that when (c) the hydrophilic nonionic surfactant is selected from polyglycerol-3-methylglucose distearate, unique Yakult color products can be formed without the addition of pigments / colorants.

[0046] The present invention will be further illustrated below with reference to embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalents also fall within the scope defined by the appended claims. Example

[0047] 1. Description of test materials

[0048] LA stands for lauroyl alanine (from Suzhou Weimei), Arg stands for arginine (from Suzhou Weimei), CMMEA stands for cocamidomethyl MEA, 430 stands for sorbitol polyether-30 tetraoleate (purchased from Kao), 150 stands for PEG-150 pentaerythritol tetrastearate (purchased from Croda), 160 stands for PEG-160 dehydrated sorbitol triisostearate (purchased from Kao), DOE120 stands for PEG-120 methyl glucodioleate (purchased from Lubrizol), CAB stands for cocamidopropyl betaine, and LAB stands for lauroamide propyl betaine.

[0049] The 30% marked in the raw materials (e.g., sodium cocoaminopropionate (30%)) means that the added raw materials are solutions with a solid content of 30%. For example, if 100g of sodium cocoaminopropionate (30%) is added, the actual amount of sodium cocoaminopropionate added is 30g.

[0050] 2. Test instruments

[0051] Viscometer: Lichen rotational viscometer, model LC-NDJ-55.

[0052] 3. Experimental Procedure

[0053] Unless otherwise specified, weigh each component according to the formula, heat to 70-85℃, and keep stirring until homogeneous. After the prepared sample has stabilized, remove it, select a suitable rotor and speed, and test the sample viscosity with a viscometer. Low-temperature testing involves keeping it at -5℃ for 48 hours for observation.

[0054] Table 1.1 Effect of free N-long-chain acyl amino acids (sodium cocoylaminopropionate)

[0055]

[0056] The results showed that for formulations containing sodium cocoylaminopropionate, the solution had almost no viscosity if free N-long-chain acyl amino acids were lacking; however, after adding lauroyl alanine, the viscosity increased by several tens of times, and the solution became transparent and had good low-temperature stability.

[0057] Table 1.2 Effect of free N-long-chain acyl amino acids (lauroyl glycine, LA)

[0058]

[0059]

[0060] The results showed that, whether it was lauroylglycine or lauroylalanine, if it was completely neutralized with alkali, there were no free N-long-chain acyl amino acids, and the formulation solution had almost no viscosity; if it was partially neutralized with alkali (80% neutralization), about 20% of the N-long-chain acyl amino acids in the formulation were in a free state, and the viscosity of the solution increased significantly.

[0061] Table 1.3 Effect of free N-long-chain acyl amino acids (lauroyl sarcosine)

[0062]

[0063]

[0064] The results showed that for formulations containing lauroyl sarcosine, if the free N-long-chain acyl amino acid is lacking (100% neutralization with alkali), the solution has no viscosity; however, if it is partially neutralized with alkali (80% neutralization), the solution viscosity increases, especially when the hydrophilic nonionic surfactant is 150 or 160, the viscosity increase is significant.

[0065] Table 1.4 Effect of Free N-Long-Chain Acyl Amino Acids (LA)

[0066]

[0067]

[0068] The results showed that, compared to lauroyl sarcosine (1-9 to 1-12), formulations containing lauroyl alanine (1-13 to 1-20) exhibited a thickening effect that was more than 5-10 times better. Partial neutralization of lauroyl alanine with a basic amino acid (arginine) resulted in significantly better low-temperature stability than partial neutralization with an inorganic base (sodium hydroxide).

[0069] Table 2.1 Effect of amphoteric surfactants

[0070]

[0071]

[0072] The results showed that the solution viscosity was low if the formulation lacked amphoteric surfactants. Among amphoteric surfactants, betaine-based amphoteric surfactants showed the best thickening effect under the same conditions.

[0073] Table 2.4 Effects of Amphoteric Surfactants (Based on Different Hydrophilic Nonionic Surfactants)

[0074]

[0075]

[0076]

[0077] The results showed that when (c) the hydrophilic nonionic surfactant was selected from polyglycerol-3-methylglucose distearate, Yakult-colored products that appealed to children could be obtained.

[0078] Table 3.3 Effect of hydrophilic nonionic surfactants

[0079]

[0080]

[0081]

[0082] The results showed that, among all polyglycerol-based hydrophilic nonionic surfactants, only polyglycerol-3-methylglucose distearate could be selected to obtain Yakult-colored products that appeal to children.

[0083] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention and form different embodiments.

Claims

1. A semi-glossy, semi-milky, white cleansing composition for children, characterized in that, The composition comprises (a) a salt of an N-long chain acyl amino acid, (b) a free N-long chain acyl amino acid, (c) a hydrophilic nonionic surfactant, (d) an amphoteric surfactant; or, the composition comprises (a') an N-long chain acyl amino acid partially neutralized with a base at less than 100% degree of neutralization so that it contains a salt of the N-long chain acyl amino acid and a free N-long chain acyl amino acid not neutralized, (c) a hydrophilic nonionic surfactant, (d) an amphoteric surfactant; or, the composition comprises (a") a base and an N-long chain acyl amino acid, and the number of moles of the base is less than that of the N-long chain acyl amino acid so that the degree of neutralization of the N-long chain acyl amino acid is less than 100% to contain a salt of the N-long chain acyl amino acid and a free N-long chain acyl amino acid, (c) a hydrophilic nonionic surfactant, (d) an amphoteric surfactant; and, (c) the hydrophilic nonionic surfactant is polyglyceryl-3 methylglucose distearate.

2. A semi-glossy, milky-white cleansing composition for children according to claim 1, characterized by, The N-long chain acyl group in the N-long chain acyl amino acid is derived from a saturated or unsaturated linear or branched fatty acid having 8 to 22 carbon atoms; and / or, the amino acid in the N-long chain acyl amino acid is derived from one or more of alanine, glycine, glutamic acid, sarcosine, arginine, lysine, (methyl)taurine; and / or, the salt of the N-long chain acyl amino acid is one or more of an inorganic base salt, an organic amine salt, a basic amino acid salt of the N-long chain acyl amino acid; and / or, the base is selected from one or more of an inorganic base, an organic amine, a basic amino acid.

3. The semi-glossy, semi-milky, white cleansing composition for children according to claim 1, characterized by, The N-long chain acyl amino acid in (a), (a'), (a"), (b) is lauroyl alanine.

4. The semi-glossy, semi-milky, white cleansing composition for children according to claim 1, characterized by, The salt of the N-long chain acyl amino acid in (a) is an arginine salt of the N-long chain acyl amino acid; the base in (a'), (a") is arginine.

5. The semi-glossy, semi-milky, white cleansing composition for children according to claim 1, characterized by, The weight percent content of component (a), (a'), or (a") in the composition is 3 to 30 wt%, preferably 5 to 25 wt%, further preferably 8 to 15 wt%.

6. The semi-glossy, semi-milky, white cleansing composition for children according to claim 1, characterized by, The weight percent content of the free N-long chain acyl amino acid in (b) in the composition is 0.3 to 8 wt%, preferably 0.5 to 6 wt%.

7. The semi-glossy, semi-milky, white cleansing composition for children according to claim 1, characterized by, The weight percent content of the hydrophilic nonionic surfactant in (c) in the composition is 0.05 to 5 wt%, preferably 0.1 to 4 wt%.

8. The semi-glossy, semi-milky, white cleansing composition for children according to claim 1, characterized by, The weight percent content of the amphoteric surfactant in (d) in the composition is 0.1 to 15 wt%, preferably 1 to 10 wt%.

9. Use of a semi-galacto-hazy white cleansing composition for children according to any one of claims 1 to 8 for the manufacture of a child care product.

10. Use according to claim 9, characterized in that, The child care product is a child body wash, a child shampoo, a child facial cleanser, or a child hand liquid.

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