Self-thickening composition with conditioning property

Abstract

The invention provides a self-thickening composition with conditioning property, the composition comprises coco-amphoteric sodium acetate, polyquaternium-10 and water, the weight ratio of the coco-amphoteric sodium acetate to the polyquaternium-10 is (10-4): (0.05-0.25), and the content of the coco-amphoteric sodium acetate is 4-10 wt% based on the total weight of the composition. The invention also discloses an application of the composition in a personal cleaning care product. The content of the composition in the personal cleaning care product is 1-100wt%.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically relating to the use of a combination of polyquaternium salt cationic conditioner and sodium cocoamphoacetate in children's cleansing and care products, especially shampoos, to achieve a self-thickening effect in the system, and its application in children's shampoos and other products. Background Technology

[0002] In children's shampoo formulations, PEG-120 methyl glucoside or polymeric thickeners are often used to increase viscosity, ensuring the shampoo viscosity is between 2000-8000 Pa·s, thus guaranteeing a better user experience. However, commonly used thickeners can lead to slow foaming, poor foam stability, and an overall unsatisfactory user experience, negatively impacting the rich lather experience during shampooing.

[0003] Chinese invention patent application CN104146889 discloses a shampoo with scalp care effects, which contains N-fatty acyl amino acid salt surfactant, auxiliary surfactant, polymer conditioning agent, scalp care ingredients, and water; wherein, the auxiliary surfactant includes at least one or more of cocamidopropyl betaine, lauroamide propyl betaine, sodium cocoamphoacetate, and sodium lauroamphoacetate; the polymer conditioning agent includes at least one or more of guar hydroxypropyltrimethylammonium chloride, polyquaternium-10, and hydroxypropyl methylcellulose; the scalp care ingredients include dipotassium glycyrrhizate, β-cyclodextrin, and plant oil, wherein the plant oil includes at least one or more of camellia seed oil, ginger oil, and soapberry oil. The shampoo is mild, leaves hair smooth after washing, and has the effects of scalp care, oil control, and dandruff removal.

[0004] Chinese invention patent application CN109498494 discloses a refreshing, oil-controlling, silicone-free shampoo, composed of sodium lauroyl collagen amino acid, sodium cocoamphoacetate, cocamidopropyl betaine, decyl glucoside, glyceryl laurate, PEG-120 methyl glucodioleate, stearamide propyl dimethylammonium, guar gum hydroxypropyl trimethylammonium chloride, polyquaternium-10, PEG-7 glyceryl cocoate, hydroxyethyl urea, capryloyl glycine, citric acid, allantoin, triethanolamine, hydrolyzed oat protein, hydrolyzed collagen, ginger root oil, palmitamide propyl trimethylammonium chloride, hexamidine di(hydroxyethyl sulfonic acid) salt, and a matrix. This shampoo can adjust the hair environment, allowing the hair to be in a state of zero or low silicone oil deposition, controlling oil, removing dandruff, refreshing, nourishing the scalp and hair, repairing damaged hair, preventing hair from becoming dry, split, and breaking, and making the hair soft and shiny.

[0005] Although the aforementioned Chinese patent applications all mention using sodium cocoamphoacetate and polyquaternium-10 together in shampoo products, they do not provide evidence that the combined use of sodium cocoamphoacetate and polyquaternium-10 can have a thickening effect.

[0006] This application unexpectedly discovered that when polyquaternium-10 and sodium cocoamphoacetate are compounded, the amino groups of the polyquaternium-10 and the carboxylic acid groups of the sodium cocoamphoacetate attract each other, and the positive and negative charges attract each other, allowing the polyquaternium-10 molecules to fully expand. This results in a dramatic increase in the viscosity of the composition, reaching 60,000 Pa·s. This composition can not only be used as a thickener in shampoos, but also retains the cleaning power of surfactants and the conditioning properties of cationic surfactants, showing great promise for application in shampoos. Summary of the Invention

[0007] To address the aforementioned issues, this invention discloses a formulation using polyquaternium-10 and sodium cocoamphoacetate. It was unexpectedly discovered that the optimal combination of polyquaternium-10 and sodium cocoamphoacetate resulted in an increase in the viscosity of the formulation system.

[0008] The purpose of this invention is to provide a composition whose viscosity can be adjusted by changing the ratio of polyquaternium-10 and sodium cocoamphoacetate, and which can be used in shampoo formulations to achieve a self-thickening effect.

[0009] The present invention provides a self-thickening composition with conditioning properties, the composition comprising sodium cocoamphoacetate, polyquaternium-10 and water, wherein the weight ratio of sodium cocoamphoacetate to polyquaternium-10 is 10-4:0.05-0.25, and the content of sodium cocoamphoacetate is 4-10 wt% based on the total weight of the composition.

[0010] In a preferred embodiment, the weight ratio of the cocoa-based amphoteric acetate sodium salt and polyquaternium salt-10 is 10-5:0.05-0.25.

[0011] In a preferred embodiment, the content of the sodium cocoaluminate amphotericate is 5-10 wt%.

[0012] In a preferred embodiment, the water content is 89.75-94.8 wt%.

[0013] In a preferred embodiment, the viscosity of the composition is at least 30,000 Pa·s.

[0014] In a further preferred embodiment, the viscosity of the composition is 37600-55430 Pa·s.

[0015] The present invention also provides the application of a conditioning self-thickening composition in personal care products.

[0016] The present invention also provides a personal care product containing a self-thickening composition having conditioning properties, wherein the composition is present in the personal care product at a content of 50-97 wt%.

[0017] In a preferred embodiment, the personal hygiene product is a wash-off type cleaning product.

[0018] In a preferred embodiment, the wash-off cleaning product is selected from: baby bath wash, baby shampoo, baby shampoo and body wash, children's hand soap, and adult bath wash, shampoo, hand soap, and facial cleanser.

[0019] The beneficial effects of this invention are: This invention unexpectedly discovered that when polyquaternium-10 and sodium cocoamphoacetate are compounded, the amino groups of the polyquaternium-10 and the carboxylic acid groups of the sodium cocoamphoacetate attract each other, and the positive and negative charges attract each other, allowing the polyquaternium-10 molecules to fully expand. This results in a dramatic increase in the viscosity of the composition, reaching 60,000 Pa·s. This composition can not only be used as a thickener in shampoos, but also retains the cleaning power of surfactants and the conditioning properties of cationic surfactants, showing great promise for application in shampoos. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. While any methods and materials similar or equivalent to those described herein may be used to practice or test the invention, preferred methods and materials are described herein. For the purposes of this invention, the following terms are defined.

[0021] To provide a more concise description, some of the quantitative expressions given herein are not modified by the term "approximately". It should be understood that, whether or not the term "approximately" is explicitly used, each quantity given herein is intended to refer to an actual given value, and also to an approximation of such given values ​​that can be reasonably inferred by one of ordinary skill in the art, including approximations of such given values ​​caused by experimental and / or measurement conditions.

[0022] To provide a more concise description, some quantities in this document are described as a range from approximately X to approximately Y. It should be understood that when describing a range, the range is not limited to the upper and lower limits stated, but should include the entire range from approximately X to approximately Y, or any quantities in between.

[0023] The following describes the technical solution of the present invention in detail through preferred embodiments. However, the scope of the present invention is not limited to these embodiments, which are intended to illustrate the technical solution of the present invention and not to limit the scope of the present invention. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or as recommended by the manufacturer. Unless otherwise stated, all percentages and parts are by weight.

[0024] The raw materials used in the embodiments of the present invention are as follows: The following instruments are mainly used in the following embodiments of the present invention: 1. Fixed mixer IKA RW20; 2. Thermostatic water bath, Shanghai Yiheng Scientific Instruments Co., Ltd., HWS 28 model; 3. Weighing balance METTLER TOLEDO PL602-S; 4. Brookfield RVDV-C viscometer The samples described in Examples 1-5 were prepared according to the mass fractions shown in Table 1, as follows: Table 1 Example 1: Weigh 10 parts by weight of sodium cocoaluminate and 0.05 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0025] Example 2: Weigh 10 parts by weight of sodium cocoa-based amphoteric acetate and 0.1 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0026] Example 3: Weigh 10 parts by weight of sodium cocoaluminate and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0027] Example 4: Weigh 10 parts by weight of sodium cocoaluminate and 0.25 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0028] Example 5: Weigh 10 parts by weight of sodium cocoaluminate and 0.15 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0029] The samples described in Examples 6-10 were prepared according to the mass fractions shown in Table 2, as follows: Table 2 Example 6: Weigh 9 parts by weight of sodium cocoaluminate and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0030] Example 7: Weigh 8 parts by weight of sodium cocoaluminate and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0031] Example 8: Weigh 7 parts by weight of sodium cocoa-based amphoteric acetate and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0032] Example 9: Weigh 6 parts by weight of sodium cocoaluminate and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0033] Example 10: Weigh 5 parts by weight of sodium cocoaluminate and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0034] The samples described in Comparative Examples 1-5 were prepared according to the mass fractions shown in Table 3, as follows: Table 3 Comparative Example 1: Weigh 5 parts by weight of lauryl hydroxysulfonate betaine and 0.2 parts by weight of polyquaternium salt-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0035] Comparative Example 2: Weigh 7 parts by weight of lauryl hydroxysulfonate betaine and 0.2 parts by weight of polyquaternium salt-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0036] Comparative Example 3: Weigh 10 parts by weight of lauryl hydroxysulfonate betaine and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0037] Comparative Example 4: Weigh 5 parts by weight of cocamidopropyl betaine and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0038] Comparative Example 5: Weigh 10 parts by weight of cocamidopropyl betaine and 0.2 parts by weight of polyquaternium-10, add deionized water to make up to 100%, mix the raw materials, and stir for 10 minutes until uniform.

[0039] Test Example 1: Viscosity Test Test samples: Samples prepared in Examples 1-10 and Comparative Examples 1-5 Viscosity test: The viscosity of the sample after placement was tested using a Brookfield RVDV-C viscometer with a rotor S93 at 20 rpm for 60 seconds.

[0040] Table 4. Viscosities of samples from Examples 1-12 and Comparative Examples 1-5 The viscosity results of the samples prepared in Examples 1-5 show that when sodium cocoamphoacetate and polyquaternium-10 are used in the surfactant composition, the viscosity of the surfactant composition is significantly increased when the amount of sodium cocoamphoacetate added is 10 wt% and the amount of polyquaternium-10 added is 0.05-0.25 wt%. The viscosity increases with the increase of polyquaternium-10. The viscosity is highest when the ratio of sodium cocoamphoacetate to polyquaternium-10 is 10:0.25, reaching 61200 Pa·s.

[0041] The viscosity results of the samples prepared in Examples 6-10 show that when the amount of polyquaternium-10 added is 0.2 wt% and the amount of sodium cocoamphoacetate added is 9 wt%-5 wt%, the viscosity decreases as the amount of sodium cocoamphoacetate decreases, but the viscosity is still higher than 35000 Pa·s. This proves that the combination of polyquaternium-10 and sodium cocoamphoacetate can significantly increase the viscosity of the composition.

[0042] The viscosity results of the samples prepared in Comparative Examples 1-5 show that when the amount of polyquaternium-10 added is 0.2 wt%, and the amount of lauryl hydroxysulfonate betaine and cocamidopropyl betaine added is 5 wt%-10 wt%, the viscosity of the composition is <15000 Pa·s. This proves that the interaction between betaine-type amphoteric surfactants and polyquaternium-10 is weak, and the effect of increasing viscosity is not obvious.

[0043] The compositions described in this invention can be used as intermediate raw materials in the preparation of corresponding personal care products. These personal care products are preferably wash-off cleansing product compositions, including but not limited to the preparation of infant bath washes, shampoos, shampoo-body washes, children's hand soaps, and adult bath washes, shampoos, hand soaps, and facial cleansers. The weight percentage of the mixture in the personal care product is 50%-97% (w / w). The following are specific examples of the application of the compositions obtained through examples in personal care products, as well as the formulations and preparation methods of these dosage forms. Specific applications are as follows: Application Example 1: Preparation of Baby Shampoo and Body Wash Application Example 2: Preparation of Baby Shampoo Application Example 3: Preparation of Baby Shampoo and Body Wash Application Example 4: Preparation of Shower Gel Application Example 5: Preparation of Children's Hand Sanitizer

Claims

1. A self-thickening composition having conditioning properties, said composition comprising sodium cocoaluminate, polyquaternium-10, and water, wherein, The weight ratio of the coconut oil-based amphoteric acetate sodium to polyquaternium-10 is 10⁻⁴. The content of the sodium cocoaluminate amphotericate is 4-10 wt% based on the total weight of the composition, ranging from 0.05 to 0.

25.

2. The composition according to claim 1, characterized in that, The weight ratio of the coconut oil-based amphoteric acetate sodium to polyquaternium salt-10 is 10-5:0.05-0.

25.

3. The composition according to claim 1, characterized in that, The content of the sodium cocoaluminate amphotericate is 5-10 wt%.

4. The composition according to claim 1, characterized in that, The water content is 89.75-94.8 wt%.

5. The composition according to claim 1, characterized in that, The viscosity of the composition is at least 30,000 Pa·s.

6. The composition according to claim 5, characterized in that, The viscosity of the composition is 37600-55430 Pa·s.

7. The use of the composition according to any one of claims 1-6 in personal care products.

8. A personal care product containing the composition according to any one of claims 1-6, characterized in that, The composition is present in the personal care product at a concentration of 50-97 wt%.

9. The personal care product as described in claim 8, characterized in that, The personal hygiene products mentioned are wash-off cleaning products.

10. The personal care product as claimed in claim 9, characterized in that, The wash-off cleaning products are selected from: baby bath wash, baby shampoo, baby shampoo and body wash, children's hand soap, and adult bath wash, shampoo, hand soap and facial cleanser.

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