Composition for improving carding and reducing static electricity in shampoo

By using a reversible crosslinking system of polyquaternary ammonium salt-47, guar gum hydroxypropyl trimethyl ammonium chloride, polyquaternary ammonium salt-10 and zinc lactate in the shampoo, a dynamic protective film is formed, which solves the problem that the combing performance and electrostatic effect of traditional shampoos are difficult to maintain after hair drying, and achieves long-term improvement in combing and anti-static effects.

CN120501674APending Publication Date: 2025-08-19GUANGDONG JIANYUE BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510705332.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

Existing shampoos are difficult to maintain the effect of improving combing performance and reducing static electricity after hair is dry, and traditional conditioning agents are prone to falling off due to friction and evaporation of moisture.

Method used

A reversible crosslinking system consisting of polyquaternary ammonium salt-47, guar jelly hydroxypropyl trimethyl ammonium chloride, polyquaternary ammonium salt-10 and zinc lactate is used to form a dynamic protective film on the surface of the hair. Through dynamic dissociation and recombination of reversible crosslinking bonds, it adapts to external changes and maintains the stability and functionality of the membrane layer.

Benefits of technology

It achieves the hair maintaining smoothness for a long time after drying, significantly improves combing performance and reduces static electricity accumulation, and improves user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a composition for improving carding and reducing static electricity in shampoo, and belongs to the technical field of shampoo. Comprising the following raw materials in percentage by mass: 1.0 to 2.0 percent of polyquaternium-47, 0.1 to 0.3 percent of guar gum hydroxypropyl trimethyl ammonium chloride, 0.1 to 0.2 percent of polyquaternium-10, 0.05 to 0.5 percent of zinc lactate and the balance of water. When the composition is applied to shampoo, a stable and lasting functional film can be formed on the surface of hair, the combing performance of the hair is effectively improved, electrostatic accumulation is reduced, the smooth effect can still be maintained for a long time after the hair is dried, and the use experience and satisfaction degree of a user are improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of shampoo and relates to a composition for improving combing and reducing static electricity in shampoo. Background Art

[0002] As a daily hair cleanser and care product, shampoo's performance directly impacts the consumer experience. To provide a better user experience, improving hair combing performance and reducing static electricity are key areas of shampoo R&D.

[0003] However, while existing shampoo products can improve hair's smoothness and reduce static electricity for a short period of time after shampooing, these improved combing and static-reducing effects are difficult to maintain long-term after the hair dries. The functional film formed on the hair's surface after drying is easily lost due to friction during daily activities and evaporation of moisture from the environment. This can cause consumers' hair to become frizzy and experience static electricity within hours of shampooing and blow-drying, significantly affecting hair texture and styling. Summary of the Invention

[0004] Issues to be addressed

[0005] The object of the present invention is to provide a composition for improving combing and reducing static electricity in shampoo. When the composition is applied to shampoo, it can effectively improve the combing performance of hair and reduce static electricity accumulation.

[0006]

Methods for solving the problem

[0007] Existing technologies for improving shampoo combing and reducing static electricity primarily rely on increasing the concentration of conditioning agents or introducing silicone film-forming agents. High-concentration conditioning agents adhere to the hair surface, filling the gaps between the hair scales, smoothing out previously rough, curled scales and reducing friction between hair strands. This allows for smoother combing and reduces combing resistance. Silicone film-forming agents, on the other hand, form a continuous, smooth film on the hair surface, further reducing friction between hair strands and lowering static electricity. However, in actual use, even if these products can make hair smooth and reduce static electricity in a short period of time after shampooing, when the hair is dry, the high concentration of conditioners can easily cause excessive adsorption of the hair, resulting in a sticky feeling or deposition problems, affecting the combing effect; the film layer formed by silicone oil film-forming agents lacks an effective stabilization mechanism and is easily fallen off due to friction in daily activities, evaporation of moisture in the environment and other factors, making it difficult to maintain the effects of improving combing and reducing static electricity for a long time. Consumers may experience frizziness, static electricity and other problems in their hair within a few hours after shampooing and blow-drying, which greatly affects the hair texture and styling effect.

[0008] To address the aforementioned challenges, the inventors conducted extensive research and achieved a critical understanding. Based on this understanding, they creatively discovered that a reversibly crosslinked system consisting of polyquaternium-47, guar hydroxypropyltrimonium chloride, polyquaternium-10, and zinc lactate is formulated. The synergistic interaction between these components forms a dynamic protective film with a reversibly crosslinked structure on the hair surface. After the hair dries, this film continuously self-repairs and adjusts to daily friction, environmental changes, and other conditions through the dynamic dissociation and recombination of the reversible crosslinks, minimizing the risk of the protective film shedding due to external factors. This ensures that hair remains smooth and manageable for extended periods after shampooing and blow-drying, improves combing performance, and effectively reduces static electricity buildup, overcoming the drawback of conventional products that often struggle to maintain long-term effectiveness. This led to the present invention.

[0009] It's important to note that during the shampooing and conditioning process, the polyquaternium-47, guar hydroxypropyltrimonium chloride, and polyquaternium-10 in the present composition, due to their positive charge, rapidly adsorb to the negatively charged hair surface. Once the shampoo is in full contact with the hair, these cationic conditioning agents begin to evenly distribute across the hair surface, initially forming a base film with a certain smoothing effect.

[0010] As the washing process progresses, in the aqueous solution environment, the zinc ions in the zinc lactate will further undergo a reversible cross-linking reaction with specific functional groups (such as amino groups and hydroxyl groups) on the molecular chains of Polyquaternium-47, Guar Hydroxypropyltrimonium Chloride, and Polyquaternium-10, building a more complete dynamic protective film on the hair surface. At this point, the film layer has good flexibility and a certain strength, which can not only effectively improve the combing performance of the hair and reduce friction between the hair, but also neutralize the static electricity on the hair surface, making the hair appear smooth and compliant when wet.

[0011] During the blow-drying process, as the water gradually evaporates, the previously loosely cross-linked network begins to shrink, the degree of cross-linking gradually increases, and the strength and hardness of the film also increase. However, this change is not irreversible. The properties of zinc lactate allow the cross-links to re-dissociate under certain conditions (such as contact with water or external forces). Although the film gradually solidifies during the blow-drying process, it retains the ability to dynamically adjust and does not form a rigid, easily detached film due to drying and shrinkage. Instead, it adheres tightly to the hair surface, continuously exerting its anti-static and combing properties.

[0012] When hair is completely dry, the humidity decreases further, exposing it to the various frictions and environmental factors of daily activities. During this time, the reversible crosslinks dynamically dissociate and reform in response to external forces. For example, when hair is subjected to friction, localized mechanical stress causes some crosslinks to dissociate, allowing the film to adapt to the changing external forces and prevent stress concentration from causing the film to break or fall off. Once the external force subsides, the dissociated crosslinks rejoin, restoring the film's original structure and properties. Furthermore, even small fluctuations in ambient humidity can affect the state of the crosslinks. In relatively dry environments, the crosslinks remain relatively stable, maintaining the film's strength. However, when the humidity increases slightly, some crosslinks dissociate moderately, allowing the film to maintain a certain degree of flexibility. This dynamic regulation of reversible crosslinks allows the protective film to maintain its integrity and functionality long after the hair has dried, continuously repairing and adjusting itself. This effectively improves combing performance and reduces static electricity buildup over the long term, overcoming the drawback of traditional products, which experience a rapid decline in protective effectiveness upon drying.

[0013] In a first aspect, the present invention provides a composition for improving combing and reducing static electricity in shampoo, comprising the following raw materials in percentage by weight:

[0014]

[0015]

[0016] Preferably, the mass ratio of the zinc lactate to the polyquaternium-47, the guar hydroxypropyltrimonium chloride and the polyquaternium-10 is (0.25-2.5):(10-15):(1-3):1.

[0017] Preferably, the pH of the composition is 5.5-6.5.

[0018] Preferably, the raw materials of the composition further include a pH regulator, and the mass percentage of the pH regulator in the composition is 0.1-1%.

[0019] Preferably, the pH regulator is one or more of citric acid and lactic acid.

[0020] Preferably, the raw materials of the composition further include a moisturizer, and the mass percentage of the moisturizer in the composition is 1.0-5.0%.

[0021] Preferably, the moisturizing agent is one or more of glycerin, panthenol, and sorbitol.

[0022] In a second aspect, the present invention provides a method for preparing a composition for improving combing and reducing static electricity in shampoo as described above, comprising the following steps:

[0023] S1. Weigh the raw materials of each composition in proportion, add polyquaternium-10, guar hydroxypropyltrimonium chloride, and polyquaternium-47 to water in sequence, and stir until completely dissolved to obtain a mixed solution;

[0024] S2. Add zinc lactate to the mixed solution, stir, and homogenize to obtain the composition.

[0025] Preferably, in step S1, polyquaternium-10 is added to water and stirred until dissolved, then heated to 75-80° C., guar hydroxypropyltrimonium chloride is added and stirred until dissolved, then cooled to room temperature, and polyquaternium-47 is added and stirred until completely dissolved to obtain a mixed solution.

[0026] Effects of the invention

[0027] When the composition of the present invention is used in shampoo, it can not only effectively improve the combing performance of hair, making hair smooth and easy to comb, but also reduce static electricity accumulation. In addition, the functional film has good durability, and can maintain good hair care effects for a long time even when the hair is dry or undergoes daily activities, greatly improving the consumer experience. DETAILED DESCRIPTION

[0028] Below, the embodiments of the present application are specifically disclosed in detail as appropriate. However, there may be cases where unnecessary detailed descriptions are omitted. For example, there may be cases where detailed descriptions of well-known matters and repeated descriptions of actually identical structures are omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate the understanding of those skilled in the art. In addition, the following description is provided for those skilled in the art to fully understand the present application and is not intended to limit the subject matter described in the claims. The "ranges" disclosed in this application are defined in the form of lower limits and upper limits, and a given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of the particular range. The ranges defined in this way can be inclusive or exclusive of the end values and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range. For example, if the ranges of 60-120 and 80-110 are listed for a particular parameter, it is also expected to be understood that the ranges of 60-110 and 80-120 are also expected. Furthermore, if the minimum range values are 1 and 2, and if the maximum range values are 3, 4, and 5, then the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, unless otherwise indicated, the numerical range "ab" is an abbreviation for any combination of real numbers between a and b, where a and b are both real numbers. For example, the numerical range "0-5" indicates that all real numbers between "0-5" are listed herein, and "0-5" is merely an abbreviation for these numerical combinations. Furthermore, when a parameter is stated as an integer greater than or equal to 2, it is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and so on.

[0029] Unless otherwise specified, all embodiments and optional embodiments of the present application can be combined with each other to form a new technical solution.

[0030] Unless otherwise specified, all technical features and optional technical features of this application can be combined with each other to form a new technical solution.

[0031] Unless otherwise specified, all steps of the present application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or may include steps (b) and (a) performed sequentially. For example, the method may further include step (c), indicating that step (c) may be added to the method in any order, for example, the method may include steps (a), (b) and (c), or may include steps (a), (c) and (b), or may include steps (c), (a) and (b), etc.

[0032] Unless otherwise specified, the terms "include" and "comprising" used in this application may be open-ended or closed-ended. For example, "include" and "comprising" may mean that other components not listed may also be included or that only the listed components are included.

[0033] Unless otherwise specified, the term "or" is used in this application to be inclusive. For example, the phrase "A or B" means "A, B, or both A and B." More specifically, the condition "A or B" is satisfied if any of the following conditions are met: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0034] [Instructions for ingredients related to the composition that improves combing and reduces static electricity]

[0035] As used herein, the term "combability-enhancing and static-reducing composition in shampoo" refers to a specific combination of ingredients used in shampoo formulations to improve hair combing and reduce static buildup. The composition's ingredients include polyquaternium-47, guar hydroxypropyltrimonium chloride, polyquaternium-10, zinc lactate, a pH adjuster, a humectant, and water.

[0036] Polyquaternium-47 is a cationic conditioning agent that adsorbs onto the hair surface, providing smoothness and antistatic properties. Suitable, but not limiting, amounts of Polyquaternium-47 in the composition range from 1.0% to 2.0%, with exemplary amounts ranging from 1.0% to 2.0%, 1.2% to 2.0%, 1.4% to 2.0%, 1.6% to 2.0%, 1.8% to 2.0%, 1.0% to 2.0%, 1.0% to 1.8%, 1.0% to 1.6%, 1.0% to 1.4%, and 1.0% to 1.2%. If the amount of Polyquaternium-47 is too low, the conditioning and antistatic properties may not be fully realized; if the amount is too high, the hair may feel sticky.

[0037] Guar hydroxypropyltrimonium chloride is a cationic conditioning agent that helps improve combing and smoothness of hair. The mass percentage of guar hydroxypropyltrimonium chloride in the composition is 0.1-0.3%, and exemplary amounts include 0.12-0.3%, 0.15-0.3%, 0.18-0.3%, 0.2-0.3%, 0.22-0.3%, 0.25-0.3%, 0.28-0.3%, 0.1-0.28%, 0.1-0.25%, 0.1-0.22%, 0.1-0.2%, 0.1-0.18%, 0.1-0.15%, 0.1-0.12%, and the like. If the content of guar gum hydroxypropyltrimonium chloride is too low, the improvement effect on combing performance is not obvious; if the content of guar gum hydroxypropyltrimonium chloride is too high, the stability of the product may be affected.

[0038] Polyquaternium-10 is a cationic conditioning agent that forms a protective film on the hair surface, further enhancing hair smoothness and providing antistatic properties. The mass percentage of polyquaternium-10 in the composition is 0.1-0.2%, with exemplary concentrations ranging from 0.12-0.2%, 0.14-0.2%, 0.16-0.2%, 0.18-0.2%, 0.1-0.18%, 0.1-0.16%, 0.1-0.14%, and 0.1-0.12%, among others. A low content of polyquaternium-10 may result in a poor protective film formation; a high content of polyquaternium-10 may increase costs without significant improvement.

[0039] Zinc lactate plays a key role in the composition. It can undergo a reversible cross-linking reaction with the cationic conditioning agent to build a stable dynamic protective film. The mass percentage of zinc lactate in the composition is 0.05-0.5%, which can be exemplified by 0.06-0.5%, 0.08-0.5%, 0.1-0.5%, 0.15-0.5%, 0.2-0.5%, 0.25-0.5%, 0.3-0.5%, 0.35-0.5%, 0.4-0.5%, 0.45-0.5%, 0.05-0.45%, 0.05-0.4%, 0.05-0.35%, 0.05-0.3%, 0.05-0.25%, 0.05-0.2%, 0.05-0.15%, 0.05-0.1%, 0.05-0.08%, 0.05-0.06%, etc. If too little zinc lactate is added, the cross-linking reaction will be insufficient and the stability of the protective film will be poor; if too much zinc lactate is added, the film may be too hard, affecting the natural texture of the hair.

[0040] The pH adjuster is used to adjust the pH of the composition to maintain it within the appropriate range of 5.5-6.5. Suitable but non-limiting examples include one or more of citric acid and lactic acid. The mass percentage of the pH adjuster in the composition is 0.1-1%, and can be exemplified by 0.15-1%, 0.2-1%, 0.3-1%, 0.4-1%, 0.5-1%, 0.6-1%, 0.7-1%, 0.8-1%, 0.9-1%, 0.1-0.9%, 0.1-0.8%, 0.1-0.7%, 0.1-0.6%, 0.1-0.5%, 0.1-0.4%, 0.1-0.3%, 0.1-0.2%, and 0.1-0.15%. A suitable pH helps maintain the stability and activity of the various components in the composition. Too high or too low a pH value may affect the cross-linking reaction and the performance of the conditioner.

[0041] Humectants can retain moisture in hair, prevent dryness, and further enhance hair's smoothness and glossiness. Suitable, but non-limiting, examples of humectants include one or more of glycerin, panthenol, and sorbitol. The percentage by weight of the humectant in the composition is 1.0-5.0%, and can be exemplified by 1.2-5.0%, 1.5-5.0%, 2.0-5.0%, 2.5-5.0%, 3.0-5.0%, 3.5-5.0%, 4.0-5.0%, 4.5-5.0%, 1.0-4.5%, 1.0-4.0%, 1.0-3.5%, 1.0-3.0%, 1.0-2.5%, 1.0-2.0%, 1.0-1.5%, and 1.0-1.2%. Too little humectant may not moisturize the hair effectively, while too much may make the hair too greasy.

[0042] Preparation method of a composition for improving combing and reducing static electricity

[0043] A method for preparing a composition for improving combing and reducing static electricity comprises the following steps:

[0044] S1. Weigh the raw materials of each composition in proportion, pour water into a stirring pot, then add polyquaternium-10, guar hydroxypropyltrimonium chloride, and polyquaternium-47 to the water in sequence, and stir in sequence until completely dissolved to obtain a mixed solution;

[0045] S2. Add zinc lactate to the mixed solution, stir, and homogenize to obtain the composition.

[0046] A suitable but non-limiting implementation method is as follows: in step S1, polyquaternium-10 is added to water and stirred until dissolved, then heated to 75-80°C, guar hydroxypropyltrimonium chloride is added and stirred until dissolved, then cooled to room temperature, and polyquaternium-47 is added and stirred until completely dissolved to obtain a mixed solution. The heating temperature can be exemplified as 76-80°C, 77-80°C, 78-80°C, 79-80°C, 75-79°C, 75-78°C, 75-77°C, 75-76°C, etc. The stirring time in S1 can be adjusted according to the actual dissolution situation, and the stirring time in S1 can be exemplified as 5-15 minutes.

[0047] In step S2, the stirring time in S2 can be adjusted according to the actual mixing situation, and it can be demonstrated that the stirring time in S2 is 10-30 minutes; the homogenization speed in S2 is 2000-3000 rpm, and the homogenization time can be adjusted according to the actual homogenization situation. It can be demonstrated that the homogenization time in S2 is 5-15 minutes.

[0048] A suitable but non-limiting implementation manner is that in step S2, after homogenization, a pH regulator and a moisturizer are added, stirred for 10-30 minutes, and the pH is adjusted to 5.5-6.5 to obtain the composition.

[0049] The purpose of adding a pH adjuster is to control the pH of the shampoo between 5.5 and 6.5 (weakly acidic), bringing it closer to the natural pH of the scalp and hair. This range helps reduce scalp irritation and avoids dryness, itching, or impaired scalp barrier function caused by an alkaline environment. At the same time, a weakly acidic environment facilitates the effective binding of cationic conditioning agents and zinc lactate. If the pH is too high or too low, the dynamic equilibrium of the cross-linking reaction may be disrupted, leading to the formation or instability of a dynamic protective film, thereby reducing the effectiveness of improving combing and anti-static properties.

[0050] The purpose of adding a humectant is to regulate the moisture state of the hair surface and help the reversibly cross-linked structure form a stable protective film during the drying process. Specifically, the humectant prevents excessive dehydration, which can lead to abnormal closure of the hair cuticle and the accumulation of static electricity. It also maintains the film's flexibility through localized water retention during water evaporation, preventing the cross-linked structure from becoming brittle and cracking due to excessive shrinkage.

[0051] [Implementation process of embodiments and comparative examples]

[0052] Below, the embodiment of the present invention is described. The embodiment described below is exemplary, is only used to explain the present invention, and is not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in this field or the product instructions are used. Where the manufacturer of the reagents or instruments is not specified, they are all conventional products that can be obtained commercially.

[0053] [Examples of Compositions for Improving Combing and Reducing Static Electricity]

[0054] A method for preparing a composition for improving combing and reducing static electricity comprises the following steps:

[0055] S1. Weigh the raw materials of each composition in proportion, pour water into a stirring pot, then add polyquaternium-10 to the water and stir until dissolved, heat to 80°C, then add guar hydroxypropyltrimonium chloride and stir until dissolved, then cool to room temperature, and then add polyquaternium-47 and stir until completely dissolved to obtain a mixed solution.

[0056] S2. Add zinc lactate to the mixed solution, stir for 20 minutes, homogenize at a homogenizer speed of 2000 rpm for 10 minutes, and finally add a pH adjuster and a moisturizer, stir for 30 minutes, and adjust the pH to 5.5-6.5 to obtain a composition that improves combing and reduces static electricity.

[0057] A series of Examples 1-6 of compositions for improving combing and reducing static electricity were prepared by using the above-described procedures described in "[Examples of Comb-Improving and Static-Reducing Compositions]" of this section and in combination with the amounts of the composition raw materials in Table 1.

[0058] [Comparative Example of Composition for Improving Combing and Reducing Static Electricity]

[0059] Based on Example 3 of [Examples of Compositions for Improving Combing and Reducing Static Electricity], the amounts of the raw materials in the composition were changed, while the rest remained unchanged.

[0060] A series of comparative examples 1-2 of compositions for improving combing and reducing static electricity were prepared by using the above-mentioned operation of "[Comparative Examples of Compositions for Improving Combing and Reducing Static Electricity]" in this section and combining the amounts of the raw materials of the compositions in Table 1.

[0061] Table 1 Amount of raw materials used in the composition for improving combing and reducing static electricity

[0062]

[0063]

[0064]

evaluate

[0065] 1. Sample Preparation

[0066] 1. Preparation of basic shampoo (control group)

[0067] The formula of the basic shampoo specifically includes the following raw materials in percentage by mass: 14% sodium laureth sulfate, 4% cocamidopropyl betaine, 1.5% dimethicone, 0.2% sodium benzoate, 0.8% sodium chloride, 0.2% citric acid, and 79% deionized water.

[0068] The preparation method of basic shampoo is as follows:

[0069] 790 g of deionized water was added to a stirring pot and heated to 75° C., and then 140 g of sodium laureth sulfate (SLES) and 40 g of cocamidopropyl betaine were added to the water in sequence and stirred until completely dissolved; then the temperature was lowered to 50° C., 15 g of polydimethylsiloxane was added, and homogenization was performed at a speed of 2000 rpm for 5 minutes; then 8 g of sodium chloride was added and stirred until the viscosity of the system was uniform; then 2 g of citric acid was added and stirred until dissolved. Finally, the temperature was lowered to 40° C., 2 g of sodium benzoate was added, stirred, and cooled to prepare a basic shampoo.

[0070] 2. Preparation of Test Sample Shampoo (Preparation Examples 1-6 and Comparative Preparation Examples 1-2)

[0071] The difference from the preparation of basic shampoo is that the same amount of the composition prepared in Examples 1-6 and Comparative Examples 1-2 is used instead of polydimethylsiloxane, and the shampoo prepared using the composition prepared in Examples and Comparative Examples corresponds to Preparation Examples 1-6 and Comparative Preparation Examples 1-2.

[0072] 2. [Performance Test]

[0073] Hair strand pretreatment:

[0074] Prepare several hair tresses of the same type (50 cm long, approximately 20 g in weight). Rinse and rub them twice with 40°C tap water, then air dry. Weigh 5 g of sodium lauryl sulfate and dissolve it in a 1000 mL beaker. Heat to 75°C. Then, soak the tresses in the beaker and place them in a 45°C constant temperature and humidity chamber for two hours. Remove the tresses, gently rub them briefly, rinse them with tap water, and blow dry them with a hair dryer at a distance of 20 cm until they are half dry. Finally, air dry them naturally.

[0075] Combing performance test method:

[0076] Take 9 pretreated hair tresses, take 5g of each of the basic shampoo and the test sample shampoo, apply them to the hair tresses, rub for 2 minutes to produce rich foam, let it stand for 5 minutes, then rinse with tap water, wipe off excess water with a towel until the hair tresses are no longer dripping, comb them smoothly with a comb, and test the wet hair combability using a tensile tester; then use a hair dryer to blow dry the hair tresses at a distance of 20 cm until the surface moisture is completely evaporated, comb them smoothly with a comb, and then place the test hair tresses in a constant temperature and humidity chamber at 25°C / 50%RH for 24 hours, and then test the dry hair combability using a universal tensile tester.

[0077] Combability is expressed as the friction between the hair and the plastic comb.

[0078] The test results are shown in Table 2.

[0079] Electrostatic performance test method:

[0080] Take 9 pretreated hair tresses, take 5g of basic shampoo and test sample shampoo respectively, apply them to the hair tresses, rub for 2 minutes to produce rich foam, let it stand for 5 minutes, then rinse with tap water, wipe off excess water with a towel, and blow-dry the hair with a hair dryer at a distance of 20 cm from the hair tresses until the surface moisture is completely evaporated. Use an electrometer to measure the electrostatic voltage generated by rubbing the hair tresses with a plastic comb 10 times. Then, place the test hair tresses in a constant temperature and humidity chamber at 25°C and 25% humidity for 24 hours. Finally, use an electrometer to measure the electrostatic voltage generated by rubbing the hair tresses with the plastic comb 10 times.

[0081] The test results are shown in Table 2

[0082] III. Evaluation Results

[0083] Table 2

[0084]

[0085] From Table 2 we can see that:

[0086] In terms of combing performance, compared with the control example and the comparative preparation example, the peak combing force and average combing force of wet and dry hair in Preparation Examples 1-6 to which the composition of the present invention was added were lower, indicating that the composition can significantly improve the combing performance of hair in wet and dry states, making hair easier to comb.

[0087] In terms of electrostatic performance, the electrostatic voltage of the preparation example immediately after blow-drying and after 24 hours of storage were significantly lower than those of the control example and the comparative preparation example, indicating that the composition of the present invention can effectively reduce hair static electricity and maintain the antistatic effect for a long time.

[0088] In summary, the composition for improving combing and reducing static electricity in shampoo of the present invention has good performance and can effectively solve the shortcomings of existing shampoo products in terms of the durability of the effects of improving combing and reducing static electricity.

[0089] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A composition for improving combing and reducing static electricity in shampoo, characterized in that: The following raw materials are included in the following mass percentages:

2. A composition for improving combing and reducing static electricity in shampoo according to claim 2, characterized in that: The mass ratio of the zinc lactate to the polyquaternium-47, the guar hydroxypropyltrimonium chloride and the polyquaternium-10 is (0.25-2.5):(10-15):(1-3):

1.

3. A composition for improving combing and reducing static electricity in shampoo according to claim 1, characterized in that: The pH of the composition is 5.5-6.

5.

4. A composition for improving combing and reducing static electricity in shampoo according to claim 4, characterized in that: The raw materials of the composition further include a pH regulator, and the mass percentage of the pH regulator in the composition is 0.1-1%.

5. A composition for improving combing and reducing static electricity in shampoo according to claim 5, characterized in that: The pH regulator is one or more of citric acid and lactic acid.

6. A composition for improving combing and reducing static electricity in shampoo according to claim 1, characterized in that: The raw materials of the composition also include a moisturizing agent, and the mass percentage of the moisturizing agent in the composition is 1.0-5.0%.

7. A composition for improving combing and reducing static electricity in shampoo according to claim 1, characterized in that: The moisturizing agent is one or more of glycerin, panthenol and sorbitol.

8. A method for preparing a composition for improving combing and reducing static electricity in shampoo according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Weigh the raw materials of each composition in proportion, add polyquaternium-10, guar hydroxypropyltrimonium chloride, and polyquaternium-47 to water in sequence, and stir until completely dissolved to obtain a mixed solution; S2. Add zinc lactate to the mixed solution, stir, and homogenize to obtain the composition.

9. The method for preparing a composition for improving combing and reducing static electricity in shampoo according to claim 8, characterized in that: In step S1, polyquaternium-10 is added to water and stirred until dissolved, and then heated to 75-80° C., guar hydroxypropyltrimonium chloride is added and stirred until dissolved, and then cooled to room temperature, and polyquaternium-47 is added and stirred until completely dissolved to obtain a mixed solution.

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