Shampoo composition for improving smoothness and particle residues and preparation method thereof

Abstract

The invention relates to the technical field of shampoo, in particular to a shampoo composition for improving smoothness and particle residues and a preparation method of the shampoo composition. The composition is prepared from the following components in percentage by weight: 0.5 to 2.5 percent of insoluble particles, 0.05 to 0.5 percent of metacinium chloride, 0.05 to 1 percent of polyquaternium-10, 0.1 to 3 percent of polydimethylsiloxane alcohol, 5 to 30 percent of a surfactant and the balance of water and a cosmetically acceptable carrier. By means of the synergistic effect of a ternary composite system of Maimei ammonium chloride, polyquaternium-10 and polydimethylsiloxane alcohol, negative charges of hair are neutralized, a hydrophobic membrane layer is formed, insoluble particle residues are reduced, and meanwhile the smoothness and combability after washing are improved. The preparation method adopts split-phase premixing and medium and low temperature mixing processes to guarantee the stability of the system. The invention solves the problems of residual irritation and astringent feeling of the existing shampoo containing insoluble particles, and has obvious practical value.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of shampoo technology, and particularly relates to a shampoo composition for improving smoothness and particle residue and a preparation method thereof. BACKGROUND

[0002] Shampoos containing insoluble particles such as selenium disulfide, colloidal sulfur, etc. are widely used due to their excellent anti-dandruff effect. However, to solve the problem of suspension, the particle size is usually controlled to be less than 10 μm, especially less than 5 μm. However, such small particles are easy to remain on the surface of the hair or the hair follicle of the scalp, resulting in hair discoloration, scalp irritation, and a rough feeling of the hair after washing, and poor combing performance.

[0003] In the prior art, single silicone oil can only partially improve smoothness, and polyquaternary ammonium salt can only simply neutralize the charge, and hexadimethrine chloride is mainly used in dyeing and perming products for color fixing, and no solution has been found to solve the "residue-smoothness" contradiction through multi-component synergy. SUMMARY

[0004] Therefore, the present application aims to provide a shampoo composition for improving smoothness and particle residue and a preparation method thereof, so as to solve the problems of particle residue and a rough feeling of the hair after washing in the prior art.

[0005] To achieve the above purpose, the present application provides a shampoo composition for improving smoothness and particle residue, which comprises the following components in mass percentage: 0.5-2.5% insoluble particles, 0.05-0.5% hexadimethrine chloride, 0.05-1% polyquaternary ammonium salt, 0.1-3% dimethicone, 5-30% surfactant, and the balance of water and a cosmetically acceptable carrier.

[0006] Preferably, the insoluble particles are at least one of selenium disulfide, colloidal sulfur, zinc pyrithione, and coal tar, and the mass ratio of selenium disulfide to colloidal sulfur is (3-5):1; the surfactant comprises 10-15% sodium laureth sulfate and 3-8% cocamidopropyl betaine; the polyquaternary ammonium salt is polyquaternary ammonium salt-10; the cosmetically acceptable carrier comprises at least three of 0.3-0.8% grinding stabilizer, 2-3% glycerol, 0.4-0.6% ethylene glycol distearate, and 0.005-0.02% hydroxyethylidene diphosphonic acid; the cosmetically acceptable carrier further comprises a pH adjuster citric acid, a viscosity adjuster sodium chloride, a preservative phenoxyethanol, a taste adjuster fragrance, and a suspending agent; and the pH value of the composition is 4-5.

[0007] The shampoo composition for improving smoothness and particle residue is characterized by a ternary complex system of hexadimethrine chloride, polyquaternium-10 and dimethicone alcohol, wherein the hexadimethrine chloride and the polyquaternium-10 synergistically neutralize the negative charge on the surface of the hair and reduce the electrostatic adsorption of insoluble particles; the dimethicone alcohol forms a hydrophobic film layer to physically block the deposition of particles, and the three together form a smooth film to improve the combing property. After proportion optimization, the dual effects of'reducing residue' and 'improving smoothness' are realized.

[0008] The application further provides a preparation method of the shampoo composition, comprising the following steps:

[0009] (1) Pre-mixing insoluble particles: sequentially adding insoluble particles, glycerol and grinding stabilizer into a pre-mixing barrel, uniformly dispersing, and grinding three times by a three-roller machine to prepare a powder slurry with a particle size of less than or equal to 10 μm;

[0010] (2) Preparing a pre-mixing solution: adding cocamidopropyl betaine, a suspending agent and the powder slurry of step (1) into a pre-mixing pot, and uniformly stirring and mixing by homogenization;

[0011] (3) Mixing in a main pot: adding water, sodium laureth sulfate, polyquaternium-10, hexadimethrine chloride, dimethicone alcohol, ethylene glycol distearate and hydroxyethylidene diphosphonic acid into the main pot, heating to 75-80 DEG C, and uniformly dispersing by stirring;

[0012] (4) Neutralizing and adjusting: cooling the main pot to 40-50 DEG C, adding the pre-mixing solution of step (2), uniformly mixing by homogenization, adding preservatives and fragrances, adjusting the pH to 4-5 by citric acid, adjusting the viscosity by adding sodium chloride, and cooling to below 35 DEG C to obtain the shampoo composition.

[0013] Preferably, in step (1), the roller spacing of the three-roller machine is 10-30 μm, and the D50 of the powder slurry after grinding is 2-8 μm; in step (3), the dimethicone alcohol is added after the temperature of the main pot is increased to 75 DEG C, and the stirring speed is 600-800 r / min.

[0014] The uniform dispersion of particles is ensured by pre-mixing, and the stability of the ternary system is ensured by mixing at a medium-low temperature, thereby further enhancing the synergistic effect.

[0015] The application has the following beneficial effects:

[0016] 1. Synergistic effect of ternary complex system, breaking through the limitation of single component. ① Charge neutralization: synergistic effect of hexadimethrine chloride (cationic) and polyquaternium-10 (cationic polymer), pre-neutralizing the negative charge on the surface of the hair, reducing the electrostatic adsorption of insoluble particles (such as selenium disulfide) with negative charge; ② Physical barrier: polydimethylsiloxanol forms a hydrophobic film on the surface of the hair, further reducing particle deposition through steric hindrance, while not affecting the anti-dandruff efficacy of the active ingredients; ③ Smooth film layer: the three synergistically form a continuous lubricating film, reducing the friction between the hair and the combing force.

[0017] 2. Precise ratio design, balancing efficacy and safety. Insoluble particles (0.5-2.5%): ensure anti-dandruff efficacy while avoiding residue risk due to high concentration, polydimethylsiloxanol (0.1-3%): too low to form an effective film layer, too high to affect cleaning power; polyquaternium-10 (0.05-1%) and hexadimethrine chloride (0.05-0.5%): imbalance of the ratio will lead to insufficient charge neutralization or excessive deposition.

[0018] 3. Step-by-step preparation process, ensuring the stability of the complex system. Pre-dispersing and grinding: pre-dispersing insoluble particles with glycerol and grinding stabilizer and grinding them with a three-roll mill to ensure uniform dispersion of particles (particle size <10 μm) and avoid residue aggravation due to agglomeration; phase separation feeding: adding cationic components (hexadimethrine chloride and polyquaternium-10) and silicone oil into different phases and mixing at low temperature (40-50°C) to avoid high temperature damage to the adsorption properties of cationic agents. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below with specific examples.

[0020] To solve the problem of existing shampoo, especially containing selenium disulfide and colloidal sulfur, which are small particles, easily remaining on the surface of the hair or scalp hair follicles, leading to hair discoloration, scalp irritation, and after washing, the hair is prone to astringency and poor combing properties.

[0021] The present application provides a shampoo composition for improving smoothness and particle residue, comprising the following components by mass percentage: 0.5-2.5% insoluble particles, 0.05-0.5% hexadimethrine chloride, 0.05-1% polyquaternium, 0.1-3% polydimethylsiloxanol, 5-30% surfactant, and the balance of water and cosmetically acceptable carriers.

[0022] Preferably, the insoluble particles are at least one of selenium disulfide, colloidal sulfur, zinc pyrithione, coal tar, and the mass ratio of selenium disulfide to colloidal sulfur is (3-5):1; the surfactant comprises 10-15% sodium laureth sulfate and 3-8% cocamidopropyl betaine; the polyquaternium is polyquaternium-10; the cosmetically acceptable carrier comprises at least three of 0.3-0.8% grinding stabilizer, 2-3% glycerol, 0.4-0.6% ethylene glycol distearate, and 0.005-0.02% etidronic acid; the cosmetically acceptable carrier further comprises pH regulator citric acid, viscosity regulator sodium chloride, preservative phenoxyethanol, flavoring agent essence, and suspending agent; and the pH value of the composition is 4-5.

[0023] The inherent contradiction of "reducing particle size leading to increased residue" and "insufficient smoothness" in the prior art is solved by the function synergy, proportion and precise control of the ternary composite system.

[0024] The application also provides a preparation method of the shampoo composition, comprising the following steps:

[0025] (1) Pre-mixing insoluble particles: sequentially adding insoluble particles, glycerol and grinding stabilizer into a pre-mixing barrel, uniformly dispersing, and then grinding three times by a three-roller mill to obtain a powder slurry with a particle size of ≤10 μm;

[0026] (2) Preparing a pre-mixing solution: adding cocamidopropyl betaine in the surfactant, a suspending agent and the powder slurry of step (1) into a pre-mixing pot, and uniformly stirring and mixing;

[0027] (3) Mixing in a main pot: adding water, sodium laureth sulfate, polyquaternium-10, hexadimethrine chloride, dimethicone alcohol, ethylene glycol distearate and etidronic acid into the main pot, heating to 75-80℃, and uniformly stirring and dispersing;

[0028] (4) Neutralizing and adjusting: cooling the main pot to 40-50℃, adding the pre-mixing solution of step (2), uniformly mixing, adding preservatives and essence, adjusting the pH to 4-5 by citric acid, adjusting the viscosity by sodium chloride, and cooling to below 35℃ to obtain the shampoo composition.

[0029] Preferably, in step (1), the roller spacing of the three-roller mill is 10-30 μm, and the D50 of the powder slurry after grinding is 2-8 μm; and in step (3), the dimethicone alcohol is added after the temperature of the main pot is increased to 75℃, and the stirring speed is 600-800 r / min.

[0030] The preparation process adopts a step-by-step preparation process to ensure the stability of the composite system. Pre-dispersing and grinding: the insoluble particles, glycerol and grinding stabilizer are pre-dispersed and ground by a three-roll machine to ensure uniform dispersion of the particles (particle size <10 μm) and avoid the aggravation of residue caused by agglomeration; phase separation feeding: the cationic components (hexadimethrine chloride and polyquaternary ammonium salt-10) and silicone oil are added to different phases and mixed at medium-low temperature (40-50°C) to avoid high temperature damage to the adsorption performance of the cationic agent.

[0031] Specifically, the shampoo composition provided by the embodiment 1 of the present application improves smoothness and particle residue, and the content of each component is shown in Table 1. The mass percentage of citric acid and sodium chloride is 0.4%-0.8% and 0.1%-1% respectively, which does not affect the properties of the finally prepared composition, especially the improvement of smoothness and particle residue. The sum of the mass percentages of each component is 100%.

[0032] Table 1 Formula of the shampoo composition of embodiment 1

[0033]

[0034] By compounding and combining hexadimethrine chloride, polyquaternary ammonium salt-10 and polydimethylsilanol, the cationic adsorption capacity is enhanced, and a smooth film layer is formed. The use of hexadimethrine chloride + polyquaternary ammonium salt pre-neutralizes the negative charge of the hair, reduces the adsorption of selenium disulfide / sulfur particles. Silicon oil wrapping technology: form a hydrophobic film to reduce particle deposition, while not affecting the effect of active ingredients (such as SeS2). Reduce the residue of insoluble particles such as selenium disulfide colloidal sulfur on the scalp and hair after shampooing, reduce the roughness after shampooing, improve the smoothness, combing property and irritation caused by excessive residue.

[0035] The preparation method of the shampoo composition comprises the following steps:

[0036] (1) 0.8% selenium disulfide, 0.2% colloidal sulfur, 2.5% glycerol and 0.3% grinding stabilizer in phase C are sequentially added to a premixing barrel, and a disperser is started to disperse at a speed of 800-1000 r / min for 15 minutes until there is no obvious particle.

[0037] The powder slurry is prepared by grinding three times with a three-roll machine with a roller spacing of 10-30 μm;

[0038] (2) 5% cocamide propyl betaine and 5% suspending agent in phase B are added to a premixing pot and stirred at a speed of 500-600 r / min until completely dissolved.

[0039] The powder slurry prepared in step (1) is added in three equal portions, and after each addition, a homogenizer is started to process at a speed of 3000 r / min for 3 minutes to ensure uniform dispersion, and a premixing liquid is obtained;

[0040] (3) Put water, 10% sodium lauryl ether sulfate, 0.2% polyquaternium-10, 0.2% hexadimethrine chloride, 0.5% ethylene glycol distearate, 0.01% hydroxyethylidene diphosphonic acid in the main pot, heat to 75-80℃, stir at 600-800r / min for 20 minutes until completely dissolved; add 1.2% dimethicone alcohol, continue to stir for 10 minutes, and keep at 75-80℃ for 15 minutes;

[0041] (4) Cool the main pot to 40-50℃, add the premix of step (2), and homogenize at 2500-3000r / min for 5 minutes until uniform; add 0.4% phenoxyethanol and 1.0% fragrance of D phase, stir for 5 minutes; add 0.4%-0.8% citric acid to adjust the pH to 4-5, and add 0.1%-1% sodium chloride to adjust the viscosity, and cool to below 35℃ to obtain the target shampoo.

[0042] Specifically, the difference between the present comparative example 1 and example 1 is that there is no hexadimethrine chloride, the polyquaternium-10 is increased to 0.4%, and the other formulations and preparation methods are the same.

[0043] Specifically, the difference between the present comparative example 2 and example 1 is that there is no dimethicone alcohol, and the other formulations and preparation methods are the same.

[0044] Specifically, the difference between the present comparative example 3 and example 1 is that there is no polyquaternium-10, and the hexadimethrine chloride is increased to 0.4%, and the other formulations and preparation methods are the same.

[0045] Specifically, the difference between the present comparative example 4 and example 1 is that there is no hexadimethrine chloride, polyquaternium-10, and dimethicone alcohol, and the other formulations and preparation methods are the same.

[0046] Specifically, the difference between the present comparative example 5 and example 1 is that there is no polyquaternium-10 and dimethicone alcohol, and the other formulations and preparation methods are the same.

[0047] Specifically, the difference between the present comparative example 6 and example 1 is that there is no hexadimethrine chloride and dimethicone alcohol, and the other formulations and preparation methods are the same.

[0048] Specifically, the difference between the present comparative example 7 and example 1 is that there is no hexadimethrine chloride and polyquaternium-10, and the other formulations and preparation methods are the same.

[0049] The formulations of the shampoo compositions of comparative examples 1-5 are shown in Table 2.

[0050] Table 2 Formulations of shampoo compositions of comparative examples 1-5

[0051]

[0052]

[0053] The prepared products were subjected to the following performance tests:

[0054] (1) Hair combing test

[0055] The average combing force of standard hair strands after using the product was measured to test the improvement of the product on the combing force of hair.

[0056] The hair strands were randomly grouped, 6 strands per group, and each group of standard hair strands was wetted with clean water and then combed dry. 0.6 (±0.05) g of 5% AES was weighed in a weighing pan, the hair was evenly coated, then two fingers were rubbed from top to bottom to make full absorption, and stayed for 1 minute, then washed clean, and combed dry with hands. The sequentially treated hair strands were hung on the clamps of the tester, and the multifunctional hair combing tester was turned on to measure the combing force T0 of the tooth comb from the root to the end of the hair in wet and dry hair states. After pretreatment of the hair strands, the sample test was performed, 0.6 (±0.05) g of the test formula (Examples and Comparative Examples 1-7) was weighed in a weighing pan, the hair was evenly coated, then two fingers were rubbed from top to bottom to make full absorption, and stayed for 1 minute, then washed clean, and combed dry with hands. The sequentially treated hair strands were hung on the clamps of the tester, and the tester was turned on to measure the combing force from the root to the end of the hair in wet and dry hair states. The difference in average combing force before and after using the sample was calculated, and the statistical difference was analyzed.

[0057] (2) Hair friction test

[0058] The average friction of standard hair strands after using the product was measured to test the improvement of the product on the friction of hair.

[0059] The hair strands were randomly grouped, 6 strands per group, and each group of standard hair strands was wetted with clean water and then combed dry. 0.6 (±0.05) g of 5% AES was weighed in a weighing pan, the hair was evenly coated, then two fingers were rubbed from top to bottom to make full absorption, and stayed for 1 minute, then washed clean, and combed dry with hands. The sequentially treated hair strands were hung on the clamps of the tester, and the multifunctional hair combing tester was turned on to measure the combing force T0 of the tooth comb from the root to the end of the hair in wet and dry hair states. After pretreatment of the hair strands, the sample test was performed, 0.6 (±0.05) g of the test formula (Examples and Comparative Examples 1-7) was weighed in a weighing pan, the hair was evenly coated, then two fingers were rubbed from top to bottom to make full absorption, and stayed for 1 minute, then washed clean, and combed dry with hands. The sequentially treated hair strands were hung on the clamps of the tester, and the tester was turned on to measure the combing force from the root to the end of the hair in wet and dry hair states. The difference in average combing force before and after using the sample was calculated, and the statistical difference was analyzed.

[0060] (3) Hair Residue and Color Change Test

[0061] The hair swatches were randomly grouped and each group of standard hair swatches was wetted with clean water and then combed dry. 0.6 (±0.05) g of 5% AES (sodium laureth sulfate) was weighed into each weighing pan and the hair was evenly coated, then two fingers were rubbed from top to bottom to make full absorption, and it was left for 1 minute, then washed clean and naturally air-dried for standby. The pretreated hair swatches were taken for sample testing, 0.6 (±0.05) g of the test formula (Examples and Comparative Examples 1-7) was weighed into each weighing pan and the hair was evenly coated, then two fingers were rubbed from top to bottom to make full absorption, and it was left for 5 minutes, then thoroughly washed with warm water and air-dried. The long-term use was simulated, and the above steps were repeated every 1 day for 4 weeks, and the hair scale and surface state of the hair swatches were observed under an optical microscope (400 times magnification). The L*, a*, b* values of the initial and 2-week and 4-week used samples were measured by a spectrophotometer, and ΔE was calculated, formula: ΔE = ΔL 2 + Δa 2 + Δb 2 , L*, a*, b* are three parameters of the LAB color space established by the International Commission on Illumination (CIE) for quantitatively describing the color characteristics of an object, and the specific meanings are as follows:

[0062] L* (lightness): indicates the brightness of the color, with a value range of 0 (pure black) to 100 (pure white). The higher the value, the brighter the color; the lower the value, the darker the color.

[0063] a* (red-green axis): indicates the color deviation between red and green, with a value range of -128 (pure green) to +128 (pure red). The greater the positive value, the more the color deviates to red; the greater the negative value, the more the color deviates to green.

[0064] b* (yellow-blue axis): indicates the color deviation between yellow and blue, with a value range of -128 (pure blue) to +128 (pure yellow). The greater the positive value, the more the color deviates to yellow; the greater the negative value, the more the color deviates to blue.

[0065] The performance test results are shown in Tables 3-7.

[0066] Table 3 Average test results of wet combing force of Example 1 and Comparative Examples 1-7

[0067]

[0068] From the test results in Table 3, it can be seen that the ternary synergy of hexadimethrine chloride, polyquaternium-10 and dimethiconol is the key to improving the wet smoothness, and the absence of any one or two components will cause a significant decline in the effect.

[0069] Table 4 Average results of dry combing force test of Example 1 and Comparative Examples 1-7

[0070]

[0071] From the test results in Table 4, it can be seen that the synergistic effect of the ternary system has a decisive influence on the dry smoothness, and the hydrophobic film layer of the dimethiconol is crucial to reducing dry hair friction.

[0072] Table 5 Average results of wet friction force test of Example 1 and Comparative Examples 1-7

[0073]

[0074] From the test results in Table 5, it can be seen that the lubricating effect of dimethiconol is the core of reducing wet friction, and the charge neutralization of hexadimethrine chloride and polyquaternium-10 enhances its adsorption effect, and all three are indispensable.

[0075] Table 6 Average results of dry friction force test of Example 1 and Comparative Examples 1-7

[0076]

[0077] From the test results in Table 6, it can be seen that the continuous lubricating film formed by the synergistic effect of the ternary system can effectively inhibit the rise of dry friction, and the hydrophobic effect of dimethiconol plays a leading role.

[0078] Table 7 Test results of hair residue and discoloration of Example 1 and Comparative Examples 1-7

[0079]

[0080]

[0081] From the test results in Table 7, it can be seen that the ternary system reduces residue through the dual mechanisms of charge neutralization (hexadimethrine chloride + polyquaternium-10) and physical barrier (dimethiconol). Further verification that the synergistic effect of the three components can achieve the best anti-residue effect, and single or binary combination cannot completely solve the problem of particle deposition.

[0082] Based on the test results above, dimethiconol as a hydrophobic silicone forms a continuous lubricating film on the surface of the hair, directly reducing the friction coefficient between fibers, which is the basis for reducing wet resistance. At the same time, the hydrophobic property allows it to retain the film structure after the hair dries, forming a physical barrier to prevent particle embedding and avoid the flaking of hair scales due to water evaporation.

[0083] The high molecular chain of polyquaternium-10 is entangled on the hair surface by adsorption, forming steric hindrance and reducing the entanglement when the dry hair is combed; the combination of hexadimethrine chloride and the amino group of hair keratin enhances the binding force of the film layer and the hair, avoiding the film layer from falling off during drying; the two synergistically neutralize the negative charge generated on the surface of the hair due to cleaning, forming a cationic layer on the surface of the hair, and generating electrostatic repulsion with negatively charged insoluble particles (such as selenium disulfide), and enhancing the adhesion of the silicone oil film through charge adsorption.

[0084] The synergistic effect of the ternary composite system of hexadimethrine chloride, polyquaternium-10 and dimethicone alcohol through charge neutralization, hydrophobic barrier and lubricating film formation can not only significantly improve the smoothness of dry and wet hair (reduce combing force and friction), but also effectively reduce the residue of insoluble particles (inhibit discoloration and particle adhesion), and the absence of any single component or binary combination will cause a significant decrease in performance. Through the functional synergy of the ternary composite system, the precise control of the proportion and process, the contradiction between the smoothness improvement and the particle residue in the prior art is solved.

[0085] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to suggest that the scope (including claims) of the present application is limited to these examples; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details.

[0086] The present application is intended to cover all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations or equivalents that fall within the spirit and scope of the application are intended to be included within the scope of the application.

Claims

1. A shampoo composition for improving smoothness and reducing particle residue, characterized in that, It comprises the following components by weight percentage: 0.5-2.5% insoluble particles, 0.05-0.5% hymexazol, 0.05-1% polyquaternium salt, 0.1-3% polydimethylsiloxane alcohol, 5-30% surfactant, and the balance being water and a cosmetically acceptable carrier.

2. The shampoo composition according to claim 1, characterized in that, The insoluble particles are at least one of selenium disulfide, colloidal sulfur, zinc pyridinethione, and coal tar, and the mass ratio of selenium disulfide to colloidal sulfur is (3-5):

1.

3. The shampoo composition according to claim 1, characterized in that, The polyquaternary ammonium salt is polyquaternary ammonium salt-10.

4. The shampoo composition according to claim 1, characterized in that, The surfactant comprises 10-15% sodium lauryl ether sulfate and 3-8% cocamidopropyl betaine.

5. The shampoo composition according to claim 1, characterized in that, The acceptable carriers for the cosmetic include at least three of the following: 0.3-0.8% abrasive stabilizer, 2-3% glycerin, 0.4-0.6% ethylene glycol distearate, and 0.005-0.02% hydroxyethyl diphosphate.

6. The shampoo composition according to claim 1 or 5, characterized in that, The acceptable carriers for cosmetics also include pH adjuster citric acid, viscosity adjuster sodium chloride, preservative phenoxyethanol, flavoring agents fragrance, and suspending agents.

7. The shampoo composition according to claim 1, characterized in that, The pH value of the composition is 4-5.

8. A method for preparing a shampoo composition that improves smoothness and reduces particle residue, used to prepare the composition according to any one of claims 1-7, characterized in that, Includes the following steps: (1) Premixed insoluble particles: Insoluble particles, glycerin and grinding stabilizer are added to the premixing tank in sequence, dispersed evenly and then ground 3 times by a three-roll mill to obtain a slurry with a particle size ≤10μm. (2) Preparation of premixed solution: Cocamidopropyl betaine in surfactant, suspending agent and slurry in step (1) are put into premixing pot and homogenized until uniform; (3) Mixing in the main pot: Add water, sodium lauryl ether sulfate, polyquaternium-10, hymex chloride, polydimethylsiloxane alcohol, ethylene glycol distearate, and hydroxyethyl diphosphate into the main pot, heat to 75-80℃, and stir to disperse evenly; (4) Neutralization and adjustment: Cool the main pot to 40-50℃, add the premixed liquid from step (2), homogenize it evenly, add preservatives and fragrances, adjust the pH to 4-5 with citric acid, add sodium chloride to adjust the viscosity, cool it to below 35℃, and obtain the shampoo composition.

9. The preparation method according to claim 8, characterized in that, In step (1), the roller spacing of the three-roll mill is 10-30μm, and the D50 of the slurry after grinding is 2-8μm.

10. The preparation method according to claim 8, characterized in that, In step (3), polydimethylsiloxane alcohol is added after the temperature of the main pot rises to 75°C, and the stirring speed is 600-800 r / min.

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