A hair cleansing and conditioning composition and its use

Abstract

The application discloses a hair washing and protecting composition and application thereof, which comprises the following components in percentage by mass: a hair conditioner 0.1-10%, a surfactant 10-25%, and a washing and protecting aid 65-89.9%. The hair conditioner is a polymer obtained by polymerization of a non-ionic hydrophilic compound A, a hydrophobic compound B and a cationic compound C, and the molecular structure of the polymer is as follows: wherein a=100-100000, b=100-100000, and c=100-100000, and the molar ratio among a, b and c is a:b:c=1:(0.1-10):(0.1-10). The application introduces hydrophilic groups and hydrophobic groups into the cationic polymer, the hydrophilic groups can weaken the strength of the complex salt flocculation, have better spreading effect on the hair and prevent excessive accumulation, and the hydrophobic chains can migrate to the surface of the hair and the flocculation, play a role in repairing the hair scales and reducing the combing work.

Description

Technical Field

[0001] This invention relates to the field of daily chemical technology, and in particular to a hair care composition and its application. Background Technology

[0002] The hair shaft can be divided into three layers: the cuticle, the cortex, and the medulla, and its main component is keratin. The outermost layer of the cuticle is the outer β-layer, containing 18-methyleicosinate, which is hydrophobic and protects against protein loss. In real life, urban environmental pollution, ultraviolet radiation, perming and dyeing, as well as combing and blow-drying can all cause varying degrees of damage to hair, resulting in frizz, dryness, lack of shine, split ends, and breakage.

[0003] To address hair damage and difficulty in combing, shampoos typically contain cationic polymer conditioning agents such as polyquaternium-10 and guar hydroxypropyltrimethylammonium chloride, as well as oils like silicone oil and vegetable oils. During shampooing and rinsing, these cationic polymers react with surfactants to form water-resistant complex salt-floc colloids, which then precipitate out. These precipitated complex salt-floc colloids can carry away oils like silicone oil, allowing for better oil deposition on the hair, improving oil utilization and combing performance. However, with prolonged use, the accumulation of oil and complex salt-floc colloids gradually leads to flat and oily hair. Summary of the Invention

[0004] This invention provides a hair care composition and its application to solve the technical problems of flat and oily hair.

[0005] To address the aforementioned technical problems, in a first aspect, the present invention provides a hair care composition comprising the following components by weight percentage:

[0006] Hair conditioning agent 0.1%–10%, surfactant 10%–25%, shampoo and conditioner additives 65%–89.9%;

[0007] The hair conditioning agent is a polymer obtained by polymerizing a nonionic hydrophilic compound A, a hydrophobic compound B, and a cationic compound C. The molecular structure of the polymer satisfies the general formula (1):

[0008]

[0009] Where a = 100~100000, b = 100~100000, c = 100~100000, and the molar ratio between a, b and c = a:b:c = 1:(0.1~10):(0.1~10).

[0010] In some of these embodiments, a = 500–10000, b = 500–10000, c = 500–10000, and a:b:c = 1:(0.5–5):(0.5–5).

[0011] In some of these embodiments, the molecular structure of the nonionic hydrophilic compound A satisfies one or more of general formulas (2) and (3);

[0012]

[0013] Wherein, R1 is H or CH3, R2 is polyethylene glycol or methoxy polyethylene glycol, and the degree of polymerization of polyethylene glycol is 1 to 100.

[0014] In some of these embodiments, the molecular structure of the hydrophobic compound B satisfies one or more of general formulas (4), (5), and (6);

[0015]

[0016]

[0017] Wherein, R1 is H or CH3, R3 is a fatty alcohol with a carbon chain length of C4 to C50, R4 is H or a C1-20 alkyl group, and R5 is a fatty alcohol with a carbon chain length of C4 to C50.

[0018] In some of these embodiments, R5 is a C4-C8 alcohol, a C8-C22 alcohol, a C12-C22 alcohol, or a C10-C30 alkanol.

[0019] In some of these embodiments, the molecular structure of the cationic compound C satisfies one or more of general formulas (7), (8), and (9);

[0020]

[0021]

[0022] Wherein, R1 is H or CH3, R6 is an alkyl or alkoxy group of C1 to C3, R7 is an alkyl or alkoxy group of C1 to C3, R8 is an alkyl or alkoxy group of C1 to C3, R9 is H or an alkyl, alkoxy, benzyl or a group derived from a quaternary ammonium oxidizing agent of C1 to C3, and X is a negative counterion.

[0023] In some of these embodiments, X is a chloride ion.

[0024] In some of these embodiments, the surfactant is two or three of anionic surfactants, amphoteric surfactants, and nonionic surfactants.

[0025] Optionally, the anionic surfactant is one or more of the following: sulfate ester salts, alkyl polyoxyethylene ether sulfate ester salts, sulfonates, ester acyl amino acid salts, carboxylates, fatty alcohol polyether carboxylates, phosphate ester salts, and sulfosuccinate salts.

[0026] Examples of anionic surfactants include: ammonium dodecyl sulfate, ammonium lauryl polyoxyethylene ether sulfate, triethylamine lauryl sulfate, triethylamine lauryl polyoxyethylene ether sulfate, triethanolamine lauryl sulfate, triethanolamine lauryl polyoxyethylene ether sulfate, monoethanolamine lauryl sulfate, monoethanolamine lauryl polyoxyethylene ether sulfate, diethanolamine lauryl sulfate, diethanolamine lauryl polyoxyethylene ether sulfate, sodium glyceroyl monosulfate, sodium lauryl sulfate, sodium lauryl polyoxyethylene ether sulfate, potassium lauryl sulfate, potassium lauryl polyoxyethylene ether sulfate, ammonium cocoyl sulfate, ammonium dodecyl sulfate, sodium cocoyl sulfate, sodium lauroyl sulfate, potassium cocoyl sulfate. Potassium lauryl sulfate, triethanolamine lauryl sulfate, triethanolamine lauryl sulfate, monoethanolamine cocoyl sulfate, monoethanolamine lauryl sulfate, sodium cocoyl glutamate, disodium cocoyl glutamate, ammonium cocoyl glutamate, diammonium cocoyl glutamate, sodium lauroyl glutamate, disodium lauroyl glutamate, sodium cocoyl hydrolyzed wheat protein glutamate, disodium cocoyl hydrolyzed wheat protein glutamate, potassium cocoyl glutamate, dipotassium cocoyl glutamate, potassium lauroyl glutamate, dipotassium lauroyl glutamate, potassium cocoyl hydrolyzed wheat protein glutamate, dipotassium cocoyl hydrolyzed wheat protein glutamate, sodium octanoyl glutamate, dioctanoyl glutamate Sodium, potassium octanoyl glutamate, dipotassium octanoyl glutamate, sodium undecenoyl glutamate, disodium undecenoyl glutamate, potassium undecenoyl glutamate, dipotassium undecenoyl glutamate, disodium hydrogenated tallow glutamate, sodium stearoyl glutamate, disodium stearoyl glutamate, potassium stearoyl glutamate, dipotassium stearoyl glutamate, sodium myristoyl glutamate, disodium myristoyl glutamate, potassium myristoyl glutamate, dipotassium myristoyl glutamate, sodium cocoyl / hydrogenated tallow glutamate, sodium cocoyl / palmitoyl / sunflower yl glutamate, sodium hydrogenated tallow yl glutamate, sodium olive oil acyl glutamate, disodium olive oil acyl glutamate, palm oil... Sodium palmitoyl glutamate, disodium palmitoyl glutamate, sodium cocoyl alanine, sodium lauroyl alanine, sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, sodium myristoyl sarcosinate, sodium cocoyl glycinate, sodium lauroyl glycinate, sodium lauroyl methyl hydroxyethyl sulfonate, sodium cocoyl hydroxyethyl sulfonate, ammonium cocoyl hydroxyethyl sulfonate, hydrogenated sodium cocoyl methyl hydroxyethyl sulfonate, sodium lauroyl hydroxyethyl sulfonate, sodium cocoyl methyl hydroxyethyl sulfonate, sodium myristoyl hydroxyethyl sulfonate, sodium oleoyl hydroxyethyl sulfonate, sodium oleyl methyl hydroxyethyl sulfonate, sodium palm kernelyl hydroxyethyl sulfonate, sodium stearoyl methyl hydroxyethyl sulfonate, and mixtures thereof.

[0027] Optionally, the amphoteric surfactant is one or more of betaine, sulfobetaine, hydroxysulfobetaine, amphoteric hydroxypropyl sulfonate, alkyl amphoteric acetate, and alkyl amphoteric diacetate.

[0028] Specifically, examples of the amphoteric surfactants include cocodimethylcarboxymethyl betaine, cocamidopropyl betaine (CAPB), cocodimethyl betaine, lauramidopropyl betaine (LAPB), oleyl betaine, lauryldimethylcarboxymethyl betaine, lauryldimethylα-carboxyethyl betaine, cetyldimethylcarboxymethyl betaine, lauryl di-(2-hydroxyethyl)carboxymethyl betaine, stearyl di-(2-hydroxypropyl)carboxymethyl betaine, oleyldimethylγ-carboxypropyl betaine, lauryl di-(2-hydroxypropyl)α-carboxyethyl betaine, cocodimethylsulfonylpropyl betaine, stearyl dimethylsulfonylpropyl betaine, lauryl dimethylsulfonylethyl betaine, lauryl di-(2-hydroxyethyl)sulfonylpropyl betaine, and mixtures thereof.

[0029] Optionally, the nonionic surfactant is one or more of alkyl polyglucosides, alkyl glycosides, and alkyl amides.

[0030] Specifically, examples of nonionic surfactants include: decyl glucoside, cocoyl glucoside, lauroyl glucoside, cocamide, cocoamide methyl MEA, cocoamide DEA, cocoamide MEA, cocoamide MIPA, lauramide DEA, lauramide MEA, lauramide MIPA, tetradecamide DEA, tetradecamide MEA, PEG-20 cocoamide MEA, PEG-2 cocoamide MEA, PEG-3 cocoamide, PEG-4 cocoamide, PEG-5 cocoamide, PEG-6 cocoamide, PEG-7 cocoamide, PEG-3 lauramide, PEG-5 lauramide, PEG-3 oleamide, PPG-2 cocoamide, PPG-2 hydroxyethyl cocoamide, and mixtures thereof.

[0031] In some of these embodiments, the washing and care aids include deionized water and one or more of pH adjusters, preservatives, fragrance modifiers, and color modifiers.

[0032] Optionally, the pH is adjusted to one or more of citric acid, sodium citrate, sodium hydroxide, triethanolamine, and arginine.

[0033] Optionally, the preservative is one or more of phenoxyethanol, sodium benzoate, salicylic acid, sorbic acid, p-hydroxyacetophenone, and hexanediol.

[0034] In a second aspect, the present invention also provides the application of the hair washing and care composition as described in the first aspect in a hair care product, wherein the hair care product is a shampoo, hair mask, hair conditioner, hair growth serum or dandruff remover.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. By introducing hydrophilic and hydrophobic groups into the cationic polymer, the hydrophilic groups can weaken the strength of the composite salt flocculent during the polymer adsorption process, resulting in better spreading effect on the hair and preventing excessive accumulation.

[0037] 2. During the blow-drying process, the evenly spread fibrous material migrates to the surface of the hair and the fibrous material, which helps to repair the hair cuticle and reduce the need for combing. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall performance index of conditioning and fluffing, as shown in an embodiment of the present invention. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described in detail below. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] As used herein, the terms “prepared from” and “comprising” are synonymous. The terms “comprising,” “including,” “having,” “containing,” or any other variations thereof, as used herein, are intended to cover non-exclusive inclusion. For example, a composition, step, method, article, or apparatus that includes the listed elements is not necessarily limited to those elements, but may include other elements not expressly listed or elements inherent to such composition, step, method, article, or apparatus.

[0041] When a quantity, concentration, or other value or parameter is expressed as a range, a preferred range, or a range defined by a series of upper and lower preferred values, this should be understood as specifically disclosing all ranges formed by any pair of any upper or preferred value with any lower or preferred value, regardless of whether the range is disclosed individually. For example, when the range “1 to 5” is disclosed, the described range should be interpreted as including the ranges “1 to 4”, “1 to 3”, “1 to 2”, “1 to 2 and 4 to 5”, “1 to 3 and 5”, etc. When numerical ranges are described herein, unless otherwise stated, the range is intended to include its endpoints and all integers and fractions within that range.

[0042] Furthermore, the indefinite articles “a” and “an” preceding the elements or components of this invention do not impose any limitation on the quantity requirement (i.e., the number of times) of the elements or components. Therefore, “an” or “a” should be interpreted as including one or at least one, and the singular form of an element or component also includes the plural form, unless the quantity clearly refers to the singular form.

[0043] 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. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] The hair conditioner is a polymer obtained by polymerization of a nonionic hydrophilic compound A, a hydrophobic compound B, and a cationic compound C. Compound A is exemplified by 1-vinyl-2-pyrrolidone or PEG-10 acrylate; compound B is exemplified by C12-22 alcohol acrylate or C8-22 alcohol acrylate; and compound C is exemplified by methacryloylpropyltrimethylammonium chloride, dimethyl diallyl ammonium chloride, or ethyl methacrylate trimethylammonium chloride. The physicochemical properties of the polymer are shown in Table 1 below.

[0045] Table 1. Physicochemical Properties of Polymers

[0046]

[0047]

[0048] The polymers and comparative polymers in Table 1 can be prepared by the following methods:

[0049] Step 1: Add the monomers of compound A, compound B and compound C in the corresponding molar ratio of a:b:c to an organic solvent that has good solubility in compounds A, B, C and the final polymer and does not participate in the reaction, and stir to disperse evenly. The organic solvent can be acetone or other solvents.

[0050] Step 2: Add the chain initiator for free radical polymerization, heat and stir, and control the temperature between 40℃ and 70℃. Control the molecular weight of the polymer by controlling the amount of chain initiator and the reaction time. After the reaction is complete, a viscous transparent liquid is obtained. The chain initiator can be persulfate or lauroyl peroxide, etc.

[0051] Step 3: Reduced pressure distillation to remove the solvent, yielding a viscous gel-like substance;

[0052] Step 4: Add the pre-prepared solution to the viscous gel and wash repeatedly to remove residual solvent and unpolymerized compounds A, B, and C, obtaining the final conditioning agent. The pre-prepared solution is a mixture of ethanol and water. Initially, a pre-prepared solution with a higher ethanol content is used during washing. As washing continues, the ethanol content of the pre-prepared solution is gradually reduced, and finally, water is used as the pre-prepared solution.

[0053] Example 1

[0054] 0.1% citric acid, 0.4% sodium citrate, 10% sodium lauryl ether sulfate (active ingredient), and 3% cocamidopropyl betaine (active ingredient) were added to water and stirred until evenly dispersed. After even dispersion, 0.4% sodium benzoate, 0.5% phenoxyethanol, and 0.3% conditioner 1 (active ingredient) were added in sequence. Polymer 1 was diluted to a concentration of 5% and added. The mixture was stirred until 100% was reached to obtain the shampoo.

[0055] Example 2

[0056] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 2, and the rest is the same as in Example 1.

[0057] Example 3

[0058] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 3, and the rest is the same as in Example 1.

[0059] Example 4

[0060] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 4, and the rest is the same as in Example 1.

[0061] Example 5

[0062] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 5, and the rest is the same as in Example 1.

[0063] Example 6

[0064] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 6, and the rest is the same as in Example 1.

[0065] Example 7

[0066] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 7, and the rest is the same as in Example 1.

[0067] Example 8

[0068] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 8, and the rest is the same as in Example 1.

[0069] Example 9

[0070] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of conditioner 9, and the rest is the same as in Example 1.

[0071] Comparative Example 1

[0072] Replace 0.3% of the conditioner 1 in Example 1 with 0.3% of the control conditioner 1, and the rest is the same as in Example 1.

[0073] Comparative Example 2

[0074] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of control conditioner 2, otherwise remain the same as in Example 1.

[0075] Comparative Example 3

[0076] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of control conditioner 3, otherwise remain the same as in Example 1.

[0077] Comparative Example 4

[0078] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of control conditioner 4, otherwise remain the same as in Example 1.

[0079] Comparative Example 5

[0080] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of control conditioner 5, otherwise remain the same as in Example 1.

[0081] Comparative Example 6

[0082] Replace 0.3% of conditioner 1 in Example 1 with 0.3% of control conditioner 6, otherwise remain the same as in Example 1.

[0083] Comparative Example 7

[0084] Replace 0.3% of Conditioner 1 in Example 1 with 0.3% of PQ-16, and the rest is the same as in Example 1.

[0085] Comparative Example 8

[0086] Replace 0.3% of Conditioner 1 in Example 1 with 0.3% of PQ-7, and the rest is the same as in Example 1.

[0087] Comparative Example 9

[0088] Replace 0.3% of Conditioner 1 in Example 1 with 0.3% of PQ-11, and the rest is the same as in Example 1.

[0089] Fluffiness test:

[0090] To reduce the interference of blow-drying, combing, and lifestyle habits on the results of volume testing methods on human hair, the volume testing method of this invention uses hair strands for testing, and the specific operation method is as follows:

[0091] 1. Pre-cleaning: Wash the hair strands once with a 5% SLES solution, and hang them overnight in a constant temperature and humidity environment to dry before use;

[0092] 2. Pre-treat the hair bundles with a 1% artificial sebum ethanol solution, dry them, then wash the hair bundles with a shampoo sample and let them air dry naturally before use.

[0093] 3. Wash each section of hair with the shampoo to be tested, using 0.6ml per section, rubbing for 30 seconds, and rinsing for 30 seconds;

[0094] 4. Hang the washed hair strands in a constant temperature and humidity room (Rh 55%, 22°C) to dry overnight;

[0095] 5. Keep the hair strands in their dry state, without combing them, and take photos of the hair strands under these conditions in a homemade photographic light box in the laboratory (4 photos per strand);

[0096] 6. Import the photo into Image Pro image analysis software and calculate the fluffiness of each strand of hair. The test results of fluffiness are shown in Table 2.

[0097] Table 2. Fluffiness of hair strands after one wash and after five washes in different application examples.

[0098]

[0099]

[0100] As shown in Table 2, Examples 1 to 9 all exhibited good performance in terms of volume after one wash and volume after five washes, with Example 1 showing significantly better volume effect than Comparative Examples 1 to 9. This demonstrates that the components and proportions of the aforementioned hair conditioning agent can achieve a synergistic effect in improving volume performance.

[0101] Sorting tests:

[0102] Combing performance testing involves using a hair combing device to test the combing force or combing work of detached human hair strands. This is used to evaluate the effectiveness of personal care products in improving hair damage. The specific steps for the combing performance testing of the product of this invention are as follows:

[0103] 1. Hair strand selection: Select untested hair strands and conduct combing tests on them. Select hair strands with no significant difference in combing force or combing power for application example testing. The hair strands used for application testing are divided into control group and test group, with 3 hair strands in each group for each application test.

[0104] 2. Hair bundle pretreatment: Wash the hair bundle with clean water at a temperature of 38±1℃. After washing, dry it in a constant temperature and humidity chamber for later use. The conditions of the constant temperature and humidity chamber are set as follows: 23±0.5℃, 60±5%RH.

[0105] 3. Baseline Wet Hair Combing Test (W0): The test group hair strands were thoroughly wetted with running, constant-temperature water. 0.2 grams of cleaning solution were applied evenly to the surface of each gram of hair strand for approximately 30 seconds, left to stand for about 1 minute, and then rinsed for about 30 seconds. The treated hair strands were then fixed in the test position for a combing cycle test.

[0106] 4. Baseline Dry Hair Combing Test (D0): After the wet hair test, the hair strands are placed in a constant temperature and humidity chamber for at least 4 hours to equilibrate. They are then removed and fixed in the test position for a combing cycle test. The tested hair strands are then placed in the constant temperature and humidity chamber for later use.

[0107] 5. Sample Wet Hair Combing Test (Wx): Thoroughly wet the hair strand that has completed the baseline combing test with running, constant-temperature water. Apply 0.2 grams of sample per gram of hair strand or according to the sample usage instructions, evenly on the hair strand surface. Apply for approximately 30 seconds, leave for approximately 1 minute, then rinse for approximately 30 seconds or skip rinsing. Fix the treated hair strand in the test position and perform a combing cycle test.

[0108] 6. Dry hair combing test (Dx): After the wet hair test, the hair strands are placed in a constant temperature and humidity chamber for more than 4 hours to equilibrate. They are then taken out and fixed in the test position for combing cycle test.

[0109] 7. Calculation of combability improvement effect: Combability improvement degree of wet hair = (W0-Wx) / W0×100%; Combability improvement degree of dry hair = (D0-Dx) / D0×100%. The combing force data of the application example samples after washing the hair strands once and after washing the hair strands five times are shown in Table 3.

[0110] Table 3. Combing power after washing hair strands once and five times.

[0111]

[0112]

[0113] The degree of improvement in combing performance is calculated according to the formula for improving combing performance. Improvement in combing performance of wet hair = (W0-Wx) / W0×100%; Improvement in combing performance of dry hair = (D0-Dx) / D0×100%. The improvement in combing performance of hair strands after one wash and five washes is shown in Table 4.

[0114] Table 4. Improvement in combing power for each application example.

[0115]

[0116]

[0117] Users will pay attention to the product's fluffing effect, as well as its wet hair combing effect and dry hair combing effect during product use. In order to better evaluate the product's overall performance, the product's fluffiness, wet hair improvement, and dry hair improvement after five washes were normalized. The normalized data is shown in Table 5. The product's overall fluffing performance index was calculated using the following formula (1): F = (P × 0.4 + S × 0.3 + G × 0.3) × 100.

[0118] Table 5. Normalized performance index of products after 5 washes and conditioning for fluffiness.

[0119]

[0120]

[0121] As shown in Table 5, Examples 1 to 9 exhibited good overall performance in terms of conditioning and volume enhancement. Furthermore, Example 1 significantly improved combing performance compared to Comparative Documents 1 to 9, indicating that the components and proportions of the aforementioned hair conditioning agent can achieve a synergistic effect in terms of combing performance.

[0122] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.

[0123] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention for those skilled in the art.

Claims

1. A hair care composition, characterized in that, Includes the following components by mass percentage: Hair conditioning agent 0.1%~10%, surfactant 10%~25%, shampoo and conditioner additives 65%~89.9%; The hair conditioning agent is a polymer obtained by polymerizing a nonionic hydrophilic compound A, a hydrophobic compound B, and a cationic compound C. The molecular structure of the polymer satisfies the general formula (1): （1） Wherein, a = 100~100000, b = 100~100000, c = 100~100000, and the molar ratio between a, b and c = a:b:c = 1:(0.5~1.2):(0.8~2); the nonionic hydrophilic compound A includes 1-vinyl-2-pyrrolidone or PEG-10 acrylate, the hydrophobic compound B includes C8-22 alcohol acrylate, and the cationic compound C includes methacryloylpropyltrimethylammonium chloride, dimethyl diallyl ammonium chloride or ethyl methacrylate trimethylammonium chloride; The hair conditioner is prepared by the following steps: Step 1: Add the monomers of compound A, compound B and compound C in the corresponding molar ratio of a:b:c to an organic solvent that has good solubility in compounds A, B, C and the final polymer and does not participate in the reaction, and stir to disperse evenly. The organic solvent includes acetone. Step 2: Add the chain initiator for free radical polymerization, heat and stir, and control the temperature at 40℃~70℃. Control the molecular weight of the polymer by controlling the amount of chain initiator and the reaction time. After the reaction is complete, a viscous transparent liquid is obtained. Step 3: Reduced pressure distillation to remove the solvent, yielding a viscous gel-like substance; Step 4: Add the pre-prepared solution to the viscous gel and wash repeatedly to remove residual solvent and unpolymerized compounds A, B and C, to obtain the final conditioning agent. The pre-prepared solution is a mixture of ethanol and water. Initially, a pre-prepared solution with a higher ethanol content is used during washing. As washing continues, the ethanol content of the pre-prepared solution is gradually reduced, and finally, water is used as the pre-prepared solution.

2. The hair shampoo and conditioner composition as described in claim 1, characterized in that, a=500~10000, b=500~10000, c=500~10000.

3. The hair shampoo and conditioner composition as described in claim 1, characterized in that, The surfactant is two or three of the following: anionic surfactant, amphoteric surfactant, and nonionic surfactant.

4. The hair shampoo and conditioner composition as described in claim 1, characterized in that, The washing and care additives include deionized water and one or more of pH adjusters, preservatives, fragrance modifiers, and color modifiers.

5. The use of a hair shampoo and conditioner composition as described in any one of claims 1 to 4 in a hair care product, characterized in that, The hair care products mentioned are shampoos, hair masks, conditioners, hair growth serums, or dandruff removers.

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