A fluffy conditioning personal care composition and its application

Abstract

The present invention provides a conditioning and fluffy personal care composition, which comprises, by weight percentage: (1) 80% to 97% of an amphoteric surfactant; (2) 3% to 20% of a hydrophobically modified cationic polymer. The amphoteric surfactant refers to a derivative containing aliphatic secondary amine or tertiary amine and an anionic group, wherein the aliphatic chain can be a straight chain or branched chain of 8 to 18 carbon atoms, and the anionic group includes carboxyl, sulfonate, sulfate, phosphate, etc. The hydrophobically modified cationic copolymer is a copolymer of dimethyldiallyl ammonium chloride and acrylate, satisfying the general structural formula I. The wet hair combing property of the shampoo containing the composition of the present invention is improved by more than 60%, and the fluffiness is improved by more than 100%.

Description

Technical Field

[0001] The invention relates to a conditioning and fluffy composition, belonging to the technical field of cosmetics, and in particular to a conditioning and fluffy personal care composition and application thereof in shampoo products. Background Art

[0002] Cationic cellulose, cationic guar gum, and synthetic cationic polymers are often used as conditioning ingredients in conditioning shampoos. Cationic polymers with low charge density and low molecular weight have weaker conditioning effects, but they will not deposit excessively on the hair, causing the hair to be heavy and flat. Polymers with high charge density and high molecular weight can provide better conditioning effects, but high conditioning and high molecular weight cationic conditioners can cause hair to be heavy and flat.

[0003] This is mainly because during the dilution process of shampoo, cationic polymers combine with surfactants to form water-insoluble complex salts. The water-insoluble complex is a random coil structure, which can improve the direct friction performance between hair and hair. In the later stage of flushing, the low molecular weight or low charge density polymers will dissolve the complex salts again due to the reduction of surfactants, and the conditioning performance will be reduced.

[0004] Although the amount of complex salts of polymers with high charge density or high molecular weight decreases in the later stage of rinsing, they still partially exist and continue to exert conditioning effects. The complex salts that are finally deposited on the surface of the hair form a thick film due to agglomeration, which can easily cause the hair to be thick and flat.

[0005] Therefore, the existing shampoo conditioning ingredients still need to be further improved in terms of their structure and formula ingredients, which is also a technical problem that technical personnel in the relevant field urgently need to solve. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a personal care composition with good wet hair conditioning effect and no thickness or stickiness caused by long-term use and having conditioning and fluffy effect.

[0007] A conditioning and fluffy personal care composition, comprising, by weight percentage:

[0008] (1) 80% to 97% amphoteric surfactant;

[0009] (2) 3% to 20% hydrophobically modified cationic polymer;

[0010] The amphoteric surfactant refers to a derivative containing aliphatic secondary or tertiary amine and an anionic group, wherein the aliphatic chain can be a straight chain or branched chain of 8 to 18 carbon atoms, wherein the anionic group includes a carboxyl group, a sulfonate group, a sulfate group, a phosphate group, or a phosphonate group, etc. Suitable amphoteric surfactants can be selected from betaines, sulfobetaines, hydroxysulfobetaines, amphoteric hydroxypropyl sulfonates, alkyl amphoacetates, and combinations thereof.

[0011] Suitable amphoteric surfactants include, but are not limited to, those selected from:

[0012] Cocoamidopropyl Hydroxysultaine, Coco Betaine Amidoamphopropionate, Coco Betaine, Coco Hydroxysultaine, Coco / Oleyl Amidopropyl Betaine, Coco Sultaine, Lauramidopropyl Betaine, Lauryl Betaine, Lauryl Hydroxysultaine, Lauryl Sultaine, Sodium Cocoaminopropionate, Sodium Cocoaminodipropionate, Sodium Cocoamphoacetate, Sodium Cocoamphohydroxypropylsulfonate, Sodium Cocoamphopropionate, Sodium Zea Mays Amphoterate, Sodium Lauroamphopropionate, Sodium Lauroamphoacetate, Sodium Lauroamphodiethylate , Sodium Lauroamphohydroxypropyl Sulfonate, Sodium Lauroamphopropionate, Sodium Cornamphopropionate, Sodium Lauriminodipropionate, Ammonium Cocoylaminopropionate, Ammonium Cocoylaminodipropionate, Ammonium Cocoylamphoacetate, Ammonium Cocoylamphodiacetate, Ammonium Cocoylamphohydroxypropyl Sulfonate, Ammonium Cocoylamphopropionate, Ammonium Cornamphopropionate, Ammonium Lauroamphoacetate, Ammonium Lauroamphodiacetate, Ammonium Lauroamphohydroxypropyl Sulfonate, Ammonium Lauroamphopropionate, Ammonium Cornamphopropionate, Ammonium Lauriminodipropionate, Tris(Ammonium Cocoylaminopropionate), Ethanolamine, triethanolamine cocoylaminodipropionate, triethanolamine cocoamphoacetate, triethanolamine cocoamphohydroxypropylsulfonate, triethanolamine cocoamphopropionate, triethanolamine corn amphopropionate, triethanolamine laurylaminopropionate, triethanolamine lauroamphoacetate, triethanolamine lauroamphohydroxypropylsulfonate, triethanolamine lauroamphopropionate, triethanolamine corn amphopropionate, triethanolamine lauriminodipropionate, cocoamphodipropionic acid, disodium capryloamphodiacetate, disodium capryloamphodipropionate, disodium capryloamphodiacetate, Disodium cocoamphodiacetate, disodium cocoamphodipropionate, disodium dicarboxyethyl cocopropylenediamine, disodium laureth-5 carboxyamphodiacetate, disodium lauriminodipropionate, disodium lauroamphodiacetate, disodium lauroamphodipropionate, disodium oleylamphodipropionate, disodium PPG-2-isodecene-7 carboxyamphodiacetate, laurylaminopropionic acid, lauroamphodipropionic acid, laurylaminopropyl glycine, lauryl diethylenediaminoglycine, and mixtures thereof.

[0013] The hydrophobically modified cationic polymer satisfies the general structural formula I:

[0014]

[0015] Among them, m:n=1:(1-20), preferably m:n=1:(5-15), and R is a C1-C22 alkyl chain.

[0016] Furthermore, the hydrophobically modified cationic polymer, R is CH3 or C4H9 or C 12 H 25 .

[0017] Furthermore, the hydrophobically modified cationic polymer, R is CH3, is dimethyldiallyl ammonium chloride / methyl acrylate copolymer DADMA-co-MA, and the synthesis method comprises the following steps:

[0018] 1) adding dimethyldiallyl ammonium chloride DADMA and methyl acrylate MA into a reaction vessel containing a methanol solution;

[0019] 2) Under the protection of nitrogen, azobisisobutyric acid dinitrile DAA was used as an initiator and dripped into the reaction container at 65°C to initiate the polymerization reaction of DADMA and MA;

[0020] 3) After reacting for 6 hours, the temperature was lowered to terminate the reaction, and acetone was added to the reaction vessel to allow the polymer to precipitate;

[0021] 4) After the precipitate is dissolved in methanol, acetone is added to precipitate, and the re-precipitation purification is repeated three times;

[0022] 5) The final precipitate was dried under vacuum at 50°C to obtain the copolymer DADMA-co-MA.

[0023] In the step 1), the molar ratio of DADMA to MA is 1.6:1;

[0024] In the step 2), the amount of DAA added is 0.5% of the total mass of DADMA and MA;

[0025] In the step 3), the amount of acetone added is equal to the total mass of DADMA, MA and methanol.

[0026] Furthermore, the hydrophobically modified cationic polymer, R is C4H9, is dimethyldiallyl ammonium chloride / butyl acrylate copolymer DADMA-co-BA, and the synthesis method comprises the following steps:

[0027] 1) adding dimethyldiallyl ammonium chloride DADMA and butyl acrylate BA into a reaction vessel containing methanol solution;

[0028] 2) Under the protection of nitrogen, azobisisobutyric acid dinitrile DAA was used as an initiator and dripped into the reaction container at 70°C to initiate the polymerization reaction of DADMA and BA;

[0029] 3) After reacting for 5 hours, the temperature was lowered to terminate the reaction, and acetone was added to the reaction vessel to allow the polymer to precipitate;

[0030] 4) After the precipitate is dissolved in methanol, acetone is added to precipitate, and the re-precipitation purification is repeated three times;

[0031] 5) The final precipitate was dried under vacuum at 50°C to obtain the copolymer DADMA-co-BA.

[0032] In the step 1), the molar ratio of DADMA to BA is 9:1;

[0033] In the step 2), the amount of DAA added is 0.1% of the total mass of DADMA and BA;

[0034] In the step 3), the amount of acetone added is equal to the mass of the mixed solution of DADMA, BA and methanol.

[0035] The hydrophobically modified cationic polymer, R is C 12 H 25 , is dimethyldiallyl ammonium chloride / lauryl acrylate copolymer DADMA-co-LA, and the synthesis method comprises the following steps:

[0036] 1) Add white oil, Span80 and OP-10 emulsifiers into a reaction device equipped with a thermometer, a stirrer and a nitrogen tube, and quickly stir and disperse them into a uniform oil phase;

[0037] 2) Weigh dimethyldiallyl ammonium chloride DADMA and lauryl acrylate LA, add them into distilled water, stir and disperse them evenly;

[0038] 3) Add the aqueous phase solution to the oil phase, accelerate stirring and emulsification at room temperature, and pass nitrogen;

[0039] 4) Add ammonium persulfate and sodium bisulfite, stir and heat to 60°C, and keep the temperature for 4 hours;

[0040] 5) cooling to room temperature to obtain a crude copolymer emulsion;

[0041] 6) After repeated washing with anhydrous ethanol and acetone for three times, the mixture was filtered and dried at 50°C to obtain the copolymer DADMA-co-LA.

[0042] In the step 1), the mass ratio of the white oil, the Span80 and the OP-10 emulsifier is 120:9:2.6;

[0043] In the step 2), the mass ratio of the DADMA, the LA and the distilled water is 68:3:96;

[0044] In the step 4), the mass fractions of the ammonium persulfate and the sodium bisulfite are 2.

[0045] The use of the conditioning and fluffy personal care composition in a shampoo product, the specific formula of the shampoo includes the following active substance mass percentage component formula:

[0046] (1) 5% to 20% surfactant, preferably 5% to 18%, more preferably 10% to 15%;

[0047] (2) 1% to 15%, preferably 2% to 12%, more preferably 3% to 10% of the composition of the present invention;

[0048] (3) other shampoo auxiliary ingredients 0.1% to 10%, preferably 0.5% to 8%, more preferably 1% to 5%;

[0049] (4) Water, balance.

[0050] The surfactants include amphoteric surfactants and anionic surfactants; the auxiliary ingredients of shampoo include essences, antidandruff agents, antibacterial agents, preservatives and the like.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] 1) The hydrophobically modified cationic polymer of the conditioning and fluffy personal care composition of the present invention interacts with the surfactant micelles during the cleaning process to enhance the conditioning effect, and the improvement in wet hair combing properties is more than 60%;

[0053] 2) The hydrophobically modified cationic polymer in the conditioning and fluffy personal care composition of the present invention has good deposition uniformity, high utilization rate, good film-forming property, and is conducive to improving the fluffiness, and the fluffiness improvement is greater than 100%. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 Shown is the infrared spectrum of DADMA-co-MA;

[0055] Figure 2 Shown is the infrared spectrum of DADMA- co -BA;

[0056] Figure 3 Shown is the infrared spectrum of DADMA-co-LA;

[0057] Figure 4 Comparison of hair bundles after five washes in the embodiment and the comparative example;

[0058] Figure 5 Fluffiness significance analysis diagram of the embodiment group and the comparative example group;

[0059] Figure 6 The significance analysis diagram of combing improvement of the embodiment group and the comparative example group. DETAILED DESCRIPTION

[0060] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below.

[0061] As used herein, the term "prepared from" is synonymous with "comprising." As used herein, the terms "comprising," "including," "having," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

[0062] When amount, concentration or other value or parameter is expressed as range, preferred range or a series of upper preferred value and lower preferred value limit range, this should be understood as specifically disclosing all ranges formed by any pairing of any range upper limit or preferred value and any range lower limit or preferred value, regardless of whether the range is disclosed separately. For example, when disclosing range "1 to 5", described range should be interpreted as including range "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5" etc. When numerical range is described in this article, unless otherwise stated, the range is intended to include its end value and all integers and fractions within the range.

[0063] Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited to the specific embodiments disclosed below.

[0064] The present invention provides a personal care composition with good wet hair conditioning effect, which does not cause thickness and stickiness after long-term use and has conditioning and fluffy effect. In terms of weight percentage, the composition comprises:

[0065] (1) 80% to 97% amphoteric surfactant;

[0066] (2) Hydrophobically modified cationic polymer 3% to 20%.

[0067] Amphoteric surfactant

[0068] The amphoteric surfactant refers to a derivative containing aliphatic secondary or tertiary amine and an anionic group, wherein the aliphatic chain can be a straight chain or branched chain of 8 to 18 carbon atoms, wherein the anionic group includes a carboxyl group, a sulfonate group, a sulfate group, a phosphate group, or a phosphonate group, etc. Suitable amphoteric surfactants can be selected from betaines, sulfobetaines, hydroxysulfobetaines, amphoteric hydroxypropyl sulfonates, alkyl amphoacetates, and combinations thereof.

[0069] Suitable amphoteric surfactants include, but are not limited to, those selected from:

[0070] Cocoamidopropyl Hydroxysultaine, Coco Betaine Amidoamphopropionate, Coco Betaine, Coco Hydroxysultaine, Coco / Oleyl Amidopropyl Betaine, Coco Sultaine, Lauramidopropyl Betaine, Lauryl Betaine, Lauryl Hydroxysultaine, Lauryl Sultaine, Sodium Cocoaminopropionate, Sodium Cocoaminodipropionate, Sodium Cocoamphoacetate, Sodium Cocoamphohydroxypropylsulfonate, Sodium Cocoamphopropionate, Sodium Zea Mays Amphoterate, Sodium Lauroamphopropionate, Sodium Lauroamphoacetate, Sodium Lauroamphodiethylate , Sodium Lauroamphohydroxypropyl Sulfonate, Sodium Lauroamphopropionate, Sodium Cornamphopropionate, Sodium Lauriminodipropionate, Ammonium Cocoylaminopropionate, Ammonium Cocoylaminodipropionate, Ammonium Cocoylamphoacetate, Ammonium Cocoylamphodiacetate, Ammonium Cocoylamphohydroxypropyl Sulfonate, Ammonium Cocoylamphopropionate, Ammonium Cornamphopropionate, Ammonium Lauroamphoacetate, Ammonium Lauroamphodiacetate, Ammonium Lauroamphohydroxypropyl Sulfonate, Ammonium Lauroamphopropionate, Ammonium Cornamphopropionate, Ammonium Lauriminodipropionate, Tris(Ammonium Cocoylaminopropionate), Ethanolamine, triethanolamine cocoylaminodipropionate, triethanolamine cocoamphoacetate, triethanolamine cocoamphohydroxypropylsulfonate, triethanolamine cocoamphopropionate, triethanolamine corn amphopropionate, triethanolamine laurylaminopropionate, triethanolamine lauroamphoacetate, triethanolamine lauroamphohydroxypropylsulfonate, triethanolamine lauroamphopropionate, triethanolamine corn amphopropionate, triethanolamine lauriminodipropionate, cocoamphodipropionic acid, disodium capryloamphodiacetate, disodium capryloamphodipropionate, disodium capryloamphodiacetate, Disodium cocoamphodiacetate, disodium cocoamphodipropionate, disodium dicarboxyethyl cocopropylenediamine, disodium laureth-5 carboxyamphodiacetate, disodium lauriminodipropionate, disodium lauroamphodiacetate, disodium lauroamphodipropionate, disodium oleylamphodipropionate, disodium PPG-2-isodecene-7 carboxyamphodiacetate, laurylaminopropionic acid, lauroamphodipropionic acid, laurylaminopropyl glycine, lauryl diethylenediaminoglycine, and mixtures thereof.

[0071] Hydrophobically modified cationic polymers

[0072] The hydrophobically modified cationic polymer satisfies the general structural formula I:

[0073]

[0074] Among them, m:n=1:(1-20), preferably m:n=1:(5-15), and R is a C1-C22 alkyl chain.

[0075] In one embodiment, R is CH3, and the prepared polymer is dimethyldiallyl ammonium chloride / methyl acrylate copolymer (DADMA-co-MA). The synthesis method of DADMA-co-MA is as follows:

[0076] (1) adding dimethyldiallyl ammonium chloride (DADMA) and methyl acrylate (MA) into a reaction vessel containing a methanol solution, wherein the molar ratio of DADMA to MA is 1.6:1;

[0077] (2) under the protection of nitrogen, diazobistrob ...

[0078] (3) After reacting for 6 hours, the temperature was lowered to terminate the reaction, and an equal mass of acetone was added to the reaction vessel to allow the polymer to precipitate;

[0079] (4) After the precipitate is dissolved in methanol, acetone is added for precipitation, and the precipitation is repeated three times;

[0080] (5) The final precipitate was vacuum dried at 50°C to obtain the copolymer DADMA-co-MA.

[0081] The infrared spectrum of DADMA-co-MA is shown in Figure 1 shown.

[0082] In one embodiment, R is C4H9, and the prepared polymer is dimethyldiallyl ammonium chloride / butyl acrylate copolymer (DADMA-co-BA). The synthesis method of DADMA-co-BA is as follows:

[0083] (1) adding dimethyldiallyl ammonium chloride (DADMA) and butyl acrylate (BA) into a reaction vessel containing a methanol solution, wherein the molar ratio of DADMA to BA is 9:1;

[0084] (2) under the protection of nitrogen, diisobutyric acid dinitrile (DAA) was used as an initiator and dripped into the reaction vessel at 70° C. to initiate the polymerization reaction of DADMA and BA, wherein the amount of DAA added was 0.1% of the total mass of DADMA and BA;

[0085] (3) After reacting for 5 hours, the temperature was lowered to terminate the reaction, and an equal mass of acetone was added to the reaction vessel to allow the polymer to precipitate;

[0086] (4) After the precipitate is dissolved in methanol, acetone is added for precipitation, and the precipitation is repeated three times;

[0087] (5) The final precipitate was vacuum dried at 50°C to obtain the copolymer DADMA-co-BA.

[0088] The infrared spectrum of DADMA-co-BA is shown in Figure 2 shown.

[0089] In one embodiment, R is C 12 H 25 The prepared polymer is dimethyldiallyl ammonium chloride / dodecyl acrylate copolymer (DADMA-co-LA), and the synthesis method of DADMA-co-LA is as follows:

[0090] (1) Add 120 g of white oil, 9 g of Span80 and 2.6 g of OP-10 emulsifier into a reaction device equipped with a thermometer, a stirrer and a nitrogen tube, and quickly stir and disperse into a uniform oil phase;

[0091] (2) Weigh 68 g of dimethyldiallyl ammonium chloride (DADMA) and 3 g of lauryl acrylate (LA) and add them to 96 g of distilled water and stir to disperse them evenly;

[0092] (3) Add the aqueous phase solution to the oil phase, accelerate stirring and emulsification at room temperature for 30 min, and pass nitrogen for 40 min;

[0093] (4) Add 0.02 g of ammonium persulfate and 0.02 g of sodium bisulfite, stir and heat to 60°C, and keep the temperature for 4 h;

[0094] (5) cooling to room temperature to obtain a crude copolymer emulsion;

[0095] (6) After repeated washing with anhydrous ethanol and acetone for three times, the product was filtered and dried at 50°C to obtain the copolymer DADMA-co-LA.

[0096] The infrared spectrum of DADMA-co-LA is shown in Figure 3 shown.

[0097] Examples and Comparative Examples

[0098] The present invention discloses a conditioning and fluffy personal care composition and a preparation method thereof.

[0099] The embodiment combination examples of the conditioning and fluffy personal care composition of the present invention are shown in Table 1, and the comparative example combination examples are shown in Table 2. It can be formed similarly to the known cleaning composition. For example, the method for preparing the conditioning and fluffy personal care composition may include mixing the hydrophobically modified cationic polymer and the amphoteric surfactant aqueous solution together and then adding it to the shampoo product, or the components of the conditioning and fluffy personal care composition may be added to the product separately during the preparation of the shampoo product.

[0100] Table 1 Examples of Fluffy Conditioning Compositions (by Weight %)

[0101] Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Lauryl Hydroxysulfobetaine 97 -- -- 80 -- -- Coco-betaine -- 95 -- -- 85 -- Cocoamidopropyl Betaine -- -- 90 -- -- 90 DADMA-co-MA -- -- 10 -- -- -- DADMA-co-BA -- 5 -- 20 15 -- DADMA-co-LA 3 -- -- -- -- 10

[0102] Table 2 Comparative Example Composition Examples (by weight %)

[0103]

[0104] Application Examples

[0105] The following application examples illustrate the use of the conditioning and fluffing compositions of the present invention. Each composition is prepared by conventional formulation and mixing techniques.

[0106] Table 3 Application examples of conditioning and fluffy compositions (mass %)

[0107]

[0108]

[0109] Table 4 Application Comparative Examples (Active Material Mass %)

[0110]

[0111] The following is the content of the efficacy test example:

[0112] 1. Fluffiness test method

[0113] In order to reduce the interference of human body in the test result of fluffiness in blowing, combing and living habits, the fluffiness test method of the present invention uses hair bundles for testing. The specific operation method is as follows:

[0114] 1. Pre-cleaning: Wash the hair with 5% SLES solution once, and hang it in a constant temperature and humidity environment to dry overnight for later use;

[0115] 2. Pre-treat the hair with 1% artificial sebum ethanol solution, dry it, and do not comb it. Take photos of the hair under this condition in a homemade light box in the laboratory. Rotate each hair bundle 120 degrees and take three photos.

[0116] 3. Import the photos into Image Pro image analysis software, calculate the area of ​​each hair strand, and calculate the average initial area A0 based on the areas of the same hair strand at three different angles;

[0117] 4. Wash the hair with the shampoo to be tested, using 0.2g per gram of hair, rubbing for 30s, and rinsing for 30s;

[0118] 5. Hang the washed hair bundle in a constant temperature and humidity room (Rh55%, 22°C) to dry overnight;

[0119] 6. Keep the hair in the state of drying without combing it, and take photos of the hair in this condition in a homemade light box in the laboratory. Rotate each hair bundle 120 degrees and take three photos;

[0120] 7. Import the photo into Image Pro image analysis software, calculate the area of ​​each hair strand, and calculate the average area A based on the area of ​​the same hair strand at three different angles. x .

[0121] 8. Calculate the bulkiness using the following formula:

[0122]

[0123] Table 5 and Figure 4 is the bulkiness test result of the application example and the application comparative example, Figure 5 This is a significance analysis of the application example group and the application comparative example group. From Table 5, Figure 4 and Figure 5 It can be seen that the fluffiness of the application example of the present invention is greater than 100%, which is much higher than that of the application comparison example and has a significant difference (α=0.001) compared with the application comparison example, indicating that the present invention has an excellent fluffiness effect.

[0124] Table 5 Fluffiness test results of the embodiments and comparative examples

[0125]

[0126]

[0127] 2. Combing test method

[0128] The wet hair combing test is a test of the combing force or combing work of isolated human hair bundles using a hair bundle comber. It is used to evaluate the effect of personal care products on improving damaged hair bundles.

[0129] The specific steps of the combing test of the product of the present invention are as follows:

[0130] 1. Hair bundle selection: select hair bundles that have not been tested and conduct combing test on them. Select hair bundles with no obvious difference in combing force or combing work for testing of application examples. The hair bundles used for application testing are divided into control group and test group, with 3 hair bundles in each group for each application test.

[0131] 2. Hair bundle pretreatment: Wash the hair bundle with clean water at a temperature of 38±1°C. After washing, dry it in a constant temperature and humidity chamber for use. The conditions of the constant temperature and humidity chamber are set at: 23±0.5°C, 60±5%RH.

[0132] 3. Baseline wet hair combing test (W0): The test group hair bundles are fully wetted with running constant temperature clean water, and 0.2 grams of cleaning liquid is used per gram of hair bundles, and the cleaning liquid is evenly applied on the surface of the hair bundles for about 30 seconds, left to stand for about 1 minute, and then rinsed for about 30 seconds. The treated hair bundles are fixed in the test position and the combing cycle test is carried out.

[0133] 4. Sample wet hair combing test (Wx): Wet the hair bundle that has completed the baseline combing test with running constant temperature clean water, apply 0.2 grams of sample per gram of hair bundle or the amount in accordance with the sample usage method evenly on the surface of the hair bundle for about 30 seconds, let it stand for about 1 minute, and then rinse for about 30 seconds or skip rinsing. Fix the treated hair bundle in the test position and perform the combing cycle test.

[0134] 5. Calculation of combing improvement effect: Wet hair combing improvement degree = (W0-Wx) / W0*100%.

[0135] Table 6 shows the wet hair combing test results of the application examples and the comparative examples. Figure 6 It is the significance analysis result of the application embodiment group and the application comparison group.

[0136] Table 6: Wet hair combing results of application examples and comparative examples

[0137]

[0138] From the data in Table 6 and Figure 6 It can be seen from the significance analysis that the wet hair combing property of the application example of the present invention is improved to more than 60%, which is much higher than the wet hair combing property of the application control example, and has a significant difference from the application control example (α=0.001), which shows that the composition of the present invention has an excellent conditioning effect.

[0139] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0140] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A conditioning and fluffy personal care composition, characterized in that: Calculated by weight percentage, its composition is: (1) 80% to 97% amphoteric surfactant; (2) 3% to 20% hydrophobically modified cationic polymer; The amphoteric surfactant is a surfactant containing an aliphatic secondary amine or tertiary amine and an anionic group, wherein the aliphatic chain is a straight chain or branched chain of 8 to 18 carbon atoms, and wherein the anionic group includes a carboxyl group, a sulfonate group, a sulfate group or a phosphate group; The hydrophobically modified cationic polymer satisfies the general structural formula I: Wherein, m:n=1:(1-20); R is CH3 or C4H9 or C 12 H 25 .

2. The conditioning and fluffing personal care composition of claim 1, wherein: The amphoteric surfactant is selected from betaines, sulfobetaines, hydroxysulfobetaines, amphohydroxypropyl sulfonates, alkyl amphoacetates, and combinations thereof.

3. The conditioning and fluffing personal care composition of claim 1, wherein: in, m:n=1:(5~15).

4. The conditioning and fluffing personal care composition of claim 3, wherein: The hydrophobically modified cationic polymer, R is CH3, is a dimethyldiallyl ammonium chloride / methyl acrylate copolymer DADMA-co-MA, and the synthesis method comprises the following steps: 1) adding dimethyldiallyl ammonium chloride DADMA and methyl acrylate MA into a reaction vessel containing a methanol solution; 2) Under the protection of nitrogen, azobisisobutyric acid dinitrile DAA was used as an initiator and dripped into the reaction container at 65°C to initiate the polymerization reaction of DADMA and MA; 3) After reacting for 6 hours, the temperature was lowered to terminate the reaction, and acetone was added to the reaction vessel to allow the polymer to precipitate; 4) After the precipitate is dissolved in methanol, acetone is added to precipitate, and the re-precipitation purification is repeated three times; 5) The final precipitate was dried under vacuum at 50°C to obtain the copolymer DADMA-co-MA.

5. The conditioning and fluffing personal care composition of claim 4, wherein: In the step 1), the molar ratio of DADMA to MA is 1.6:1; In the step 2), the amount of DAA added is 0.5% of the total mass of DADMA and MA; In the step 3), the amount of acetone added is equal to the mass of the mixed solution of DADMA, MA and methanol.

6. The conditioning and fluffing personal care composition of claim 3, wherein: The hydrophobically modified cationic polymer, R is C4H9, is dimethyldiallyl ammonium chloride / butyl acrylate copolymer DADMA-co-BA, and the synthesis method comprises the following steps: 1) adding dimethyldiallyl ammonium chloride DADMA and butyl acrylate BA into a reaction vessel containing methanol solution; 2) Under the protection of nitrogen, azobisisobutyric acid dinitrile DAA was used as an initiator and dripped into the reaction container at 70°C to initiate the polymerization reaction of DADMA and BA; 3) After reacting for 5 hours, the temperature was lowered to terminate the reaction, and acetone was added to the reaction vessel to allow the polymer to precipitate; 4) After the precipitate is dissolved in methanol, acetone is added to precipitate, and the re-precipitation purification is repeated three times; 5) The final precipitate was vacuum dried at 50°C to obtain the copolymer DADMA-co-BA.

7. The conditioning and fluffing personal care composition of claim 6, wherein: In the step 1), the molar ratio of DADMA to BA is 9:1; In the step 2), the amount of DAA added is 0.1% of the total mass of DADMA and BA; In the step 3), the amount of acetone added is equal to the mass of the mixed solution of DADMA, BA and methanol.

8. The conditioning and fluffing personal care composition of claim 3, wherein: The hydrophobically modified cationic polymer, R is C 12 H 25 , is dimethyldiallyl ammonium chloride / lauryl acrylate copolymer DADMA-co-LA, and the synthesis method comprises the following steps: 1) Add white oil, Span80 and OP-10 emulsifiers into a reaction device equipped with a thermometer, a stirrer and a nitrogen tube, and quickly stir and disperse them into a uniform oil phase; 2) Weigh dimethyldiallyl ammonium chloride DADMA and lauryl acrylate LA, add them into distilled water, stir and disperse them evenly; 3) Add the aqueous phase solution to the oil phase, accelerate stirring and emulsification at room temperature, and pass nitrogen; 4) Add ammonium persulfate and sodium bisulfite, stir and heat to 60°C, and keep the temperature for 4 hours; 5) cooling to room temperature to obtain a crude copolymer emulsion; 6) After repeated washing with anhydrous ethanol and acetone for three times, the mixture was filtered and dried at 50°C to obtain the copolymer DADMA-co-LA.

9. The conditioning and fluffing personal care composition of claim 8, wherein: In the step 1), the mass ratio of the white oil, the Span80 and the OP-10 emulsifier is 120:9:2.6; In the step 2), the mass ratio of the DADMA, the LA and the distilled water is 68:3:96; In the step 4), the mass fractions of the ammonium persulfate and the sodium bisulfite are 2.

10. Use of the conditioning and fluffy personal care composition according to any one of claims 1 to 9 in the preparation of shampoo products, characterized in that: The specific formula of the shampoo includes the following active substance mass percentage component formula: (1) Surfactant 5% to 20%; (2) 1% to 15% of the conditioning and fluffy personal care composition; (3) Other shampoo auxiliary ingredients 0.1-10%; (4) Water, balance; The surfactants are amphoteric surfactants and anionic surfactants; the auxiliary ingredients of the shampoo are essence, antidandruff agent, antibacterial agent and preservative ingredient.

Images