Sulfate-free moldable soap and preparation method thereof

By adding components such as disodium lauryl sulfosuccinate and cocoyl glucoside to the soap formula, a soft and malleable soap is prepared, solving the problem of the difficulty in shaping sulfate-free surfactants. This results in rich lather and enhanced fun, making it suitable for sensitive skin and environmentally friendly production.

CN120966579APending Publication Date: 2025-11-18HUIZHOU ZHAOTING COSMETIC
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Patent Information

Application Number
CN202510962802.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

Existing sulfate-free surfactants are not easy to prepare into malleable soaps and lack rich lather and fun.

Method used

Sulfate-free malleable soap was prepared by using disodium lauryl sulfosuccinate and cocoyl glucoside as surfactants, along with starch, glycerin, and other components. The malleable soap was formed through a three-roll milling and extrusion process.

Benefits of technology

The prepared soap is soft and malleable, produces rich lather, increases the fun and stress relief of bathing, is suitable for sensitive skin, is environmentally friendly, and is suitable for mass production.

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Abstract

The invention belongs to the field of daily chemical products, and particularly relates to sulfate-free shapeable soap and a preparation method thereof.The sulfate-free shapeable soap is prepared from, by mass, 10%-30% of synthetic fluorophlogopite or kaolin, 5%-20% of disodium lauryl sulfosuccinate, 5%-20% of coco-glucoside, 20%-50% of starch, 10%-25% of glycerin and the balance water. The toothpaste is prepared from the following components in percentage by weight: 2 to 5 percent of synthetic grease, 0.5 to 3 percent of sodium carboxymethyl cellulose or hydroxyethyl cellulose, 0.2 to 1.0 percent of preservative, 0 to 0.5 percent of essence, 0 to 0.5 percent of pigment and 0 to 0.5 percent of plant extract; the obtained shapeable soap not only can generate abundant foams to clean skin, but also has good softness and plasticity, can be kneaded into various shapes, realizes a good shaping effect, and can increase the interestingness and release pressure during bathing.
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Description

Technical Field

[0001] This invention belongs to the field of daily chemical products, specifically relating to a sulfate-free malleable soap and its preparation method. Background Technology

[0002] Shapeable soap is a type of bath product that can be kneaded into various shapes during bathing. Applying it to the body produces rich lather to cleanse the skin, increasing the fun and enjoyment of bathing compared to other bath products. Sulfate-free surfactant-based soaps are gaining popularity among consumers due to their gentleness and environmental friendliness, becoming a popular choice among cleaning products. However, the preparation of shapeable soaps requires consideration not only of the binding properties of the added substances but also the product's softness and plasticity. During the development of sulfate-free shapeable soaps, the inventors discovered that not all sulfate-free surfactants can be added to soap formulations to create shapeable soaps. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a sulfate-free, malleable soap that can be kneaded into various shapes during use, produces rich foam to clean the skin, and increases the fun and stress relief during bathing.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows:

[0005] On one hand, the present invention provides a sulfate-free malleable soap, wherein the sulfate-free malleable soap comprises the following components in weight percentage: 10-30% synthetic fluorophlogopite or kaolin, 5-20% disodium lauryl sulfosuccinate, 5-20% cocoyl glucoside, 20-50% starch, 10-25% glycerin, 2-5% synthetic oils, 0.5-3% sodium carboxymethyl cellulose or hydroxyethyl cellulose, 0.2-1.0% preservative, 0-0.5% fragrance, 0-0.5% pigment, and 0-0.5% plant extract.

[0006] This invention adds two surfactants, disodium lauryl sulfosuccinate and coconut oil-based glucose, to the soap formula. Combined with other components in the formula, the resulting malleable soap not only produces rich foam to cleanse the skin but also possesses excellent softness and malleability. It can be kneaded into various shapes to achieve a good shaping effect, increasing the fun and stress relief during bathing.

[0007] Furthermore, the starch is one or more of corn starch, potato starch, and rice starch, but is not limited thereto.

[0008] Furthermore, the synthetic oil is one or more of squalane and isopropyl myristate, but is not limited thereto.

[0009] Furthermore, the preservative is one or more of phenoxyethanol and chlorphenesin, but is not limited thereto.

[0010] Furthermore, the plant extract is one or more of lavender oil, camellia seed extract, and lime peel oil, but is not limited thereto.

[0011] On the other hand, the present invention provides a method for preparing the above-mentioned sulfate-free malleable soap, the method comprising the following steps:

[0012] S1. Pre-disperse the pigment in glycerin;

[0013] S2. Add starch, synthetic fluorophlogopite or kaolin, fragrance, plant extracts and preservatives to the material obtained in step S1, and stir at 200-300 rpm for 3-5 minutes to make it evenly mixed.

[0014] S3. Add disodium lauryl sulfosuccinate, cocoyl glucoside, synthetic oil, sodium carboxymethyl cellulose or hydroxyethyl cellulose to the material obtained in step S2, and stir at 200-300 rpm for 3-5 minutes to mix it evenly.

[0015] S4. Grind the material obtained in step S3 evenly using a three-roll mill, then add it to the strip extruder to produce strips and cut them into pieces for packaging;

[0016] The extrusion temperature in the preparation method is ≤50℃.

[0017] The present invention has the following beneficial effects:

[0018] 1. The sulfate-free malleable soap provided by the present invention, by adding disodium lauryl sulfosuccinate and coconut oil-based glucose as surfactants to the soap formula, along with other components in the formula, the resulting malleable soap not only produces rich foam to clean the skin during use, but also has good softness and malleability, and can be kneaded into various shapes to achieve a good shaping effect, which can increase the fun and stress relief during bathing.

[0019] 2. The sulfate-free plastic soap of the present invention is sulfate-free. Because it does not contain sulfate-containing surfactants, it is gentler and more suitable for sensitive skin. It has moderate cleansing power and is more environmentally friendly, especially suitable for sensitive ecological areas and home use, and conforms to the trend of "green chemistry".

[0020] 3. The method for preparing sulfate-free plastic soap of the present invention is simple to operate and suitable for mass production. Detailed Implementation

[0021] To make the technical problems, solutions, and advantages of this invention clearer, a detailed description will be provided below with reference to specific examples. However, the scope of protection of this invention is not limited to the following specific embodiments. The described embodiments are merely some, not all, of the embodiments of this invention, and are not intended to limit the invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of the invention.

[0023] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0024] In the quantitative experiments in the following examples, three replicate experiments were set up, and the data are the average of the three replicate experiments or the average ± standard deviation.

[0025] This invention relates to a sulfate-free malleable soap, and Examples 1-4 were designed. The components and their contents in the formulations of Examples 1-4 are shown in Table 1. The contents of each component in Table 1 are by mass percentage.

[0026] Table 1. Ingredients of Embodiments 1-4 of the present invention

[0027]

[0028] The preparation methods of sulfate-free malleable soaps in Examples 1-4 include the following steps:

[0029] S1. Pre-disperse the pigment in glycerin;

[0030] S2. Add starch, synthetic fluorophlogopite or kaolin, fragrance, plant extracts and preservatives to the material obtained in step S1, and stir at 200-300 rpm for 3-5 minutes to make it evenly mixed.

[0031] S3. Add disodium lauryl sulfosuccinate, cocoyl glucoside, synthetic oil, sodium carboxymethyl cellulose or hydroxyethyl cellulose to the material obtained in step S2, and stir at 200-300 rpm for 3-5 minutes to mix it evenly.

[0032] S4. Grind the material obtained in step S3 evenly using a three-roll mill, then add it to the strip extruder to produce strips and cut them into pieces for packaging;

[0033] The extrusion temperature in the preparation method is ≤50℃.

[0034] The sulfate-free malleable soap of the present invention can be used by wetting it in water and kneading it by hand to create a shape. It can also produce rich lather by rinsing it with water or rubbing it on the skin.

[0035] The technical performance indicators of the sulfate-free plastic soaps prepared in Examples 1-4 of this invention are shown in Table 2.

[0036] Table 2 Technical performance of the products prepared in Examples 1-4 of the present invention

[0037]

[0038] The "pH@25℃(1:99)" indicates the acidity or alkalinity (pH value) of a solution obtained by mixing 1 part sulfate-free plastic soap with 99 parts water at 25℃.

[0039] As shown in Table 2, the sulfate-free malleable soaps prepared in Examples 1-4 of this invention have good shaping effect and produce rich foam, which can increase the fun and pleasure of bathing.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0042] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A sulfate-free malleable soap, characterized in that, The sulfate-free malleable soap comprises the following components by weight percentage: 10-30% synthetic fluorophlogopite or kaolin, 5-20% disodium lauryl sulfosuccinate, 5-20% cocoyl glucoside, 20-50% starch, 10-25% glycerin, 2-5% synthetic oils, 0.5-3% sodium carboxymethyl cellulose or hydroxyethyl cellulose, 0.2-1.0% preservative, 0-0.5% fragrance, 0-0.5% pigment, and 0-0.5% plant extracts.

2. The sulfate-free malleable soap according to claim 1, characterized in that, The starch is one or more of corn starch, potato starch, and rice starch.

3. The sulfate-free malleable soap according to claim 1, characterized in that, The synthetic oil is one or more of squalane and isopropyl myristate.

4. The sulfate-free malleable soap according to claim 1, characterized in that, The preservative is one or more of phenoxyethanol and chlorphenesin.

5. The sulfate-free malleable soap according to claim 1, characterized in that, The plant extract is one or more of lavender oil, camellia seed extract, and lime peel oil.

6. A method for preparing a sulfate-free malleable soap as described in any one of claims 1-5, characterized in that, The preparation method includes the following steps: S1. Pre-disperse the pigment in glycerin; S2. Add starch, synthetic fluorophlogopite or kaolin, fragrance, plant extracts and preservatives to the material obtained in step S1, and stir at 200-300 rpm for 3-5 minutes to make it evenly mixed. S3. Add disodium lauryl sulfosuccinate, cocoyl glucoside, synthetic oil, sodium carboxymethyl cellulose or hydroxyethyl cellulose to the material obtained in step S2, and stir at 200-300 rpm for 3-5 minutes to mix it evenly. S4. Grind the material obtained in step S3 evenly using a three-roll mill, then add it to the strip extruder to produce strips and cut them into pieces for packaging; The extrusion temperature in the preparation method is ≤50℃.