Olive grease cleaning soap and preparation method thereof

Abstract

The invention discloses olive grease cleaning soap which is prepared from the following raw materials in percentage by weight: 100% of solvent, 7-20% of hardness regulator, 8-25% of fatty acid, 0-5% of skin conditioner, 5-18% of grease, 1-10% of surfactant and 0.5-7.5% of assistant. The olive oil or the olive oil residues, the fatty acid and the sodium hydroxide react, and the surfactant, the combined fatty acid, the cane sugar and the alcohol solvent are matched, so that the cleaning soap which is relatively hard and rich and dense in foam can be prepared. The fatty acid soap has the advantages that certain soap hardness is maintained, the foam is rich, the astringent feeling in the washing process is reduced, the soap cannot be pulled dry after being washed, and the irritation of the fatty acid soap is reduced. The prepared cleaning soap has the effects of preserving moisture and moistening skin. The olive oil pomace is used for making soap, resources are greatly utilized, waste is prevented, certain cleaning power is kept, and meanwhile skin damage caused by long-term use is avoided.

Description

Technical Field

[0001] The invention relates to the field of detergents and cleaning agents, and in particular to an olive oil fat cleaning soap and a preparation method thereof. Background Art

[0002] Cleansing soap is the most traditional means of cleaning. When cleaning hands or facial skin, the cleansing soap on the market is irritating to a certain extent, which can damage the skin and cause dryness, dehydration and tightness of the skin. Currently, the irritation of cleansing soap can be reduced by adding essential oils to the cleansing soap, but the amount of essential oil added to the cleansing soap is not high. Too much essential oil added will cause the soap body to stratify. The irritation can also be improved by adding vegetable oils, but the soap body cleaning performance of vegetable oils is too mild and the amount of foam is small. Therefore, it is very important to develop a cleansing soap that can balance the irritation of the soap body, the richness of the foam and the cleaning ability.

[0003] Chinese invention patent CN115678697A discloses an olive oil soap and a preparation method thereof. By adding jojoba oil, the viscosity of three kinds of oils, olive oil, coconut oil and cocoa butter, can be dispersed, the stickiness and heaviness of the soap can be reduced, and the oil can be effectively balanced to reduce pore blockage, but the cleaning effect is not good. Chinese invention patent CN114634848A discloses a facial soap and a preparation method thereof. A moisturizer with a specific content and a specific ratio is compounded with a specific content of a drawing agent, so that the facial soap is moisturizing and not tight after washing, and has a highly elastic creamy foam when used, but does not contain vegetable oils and fats, and is only formed by the reaction of fatty acids and alkalis and then combined with surfactants, and is highly irritating to use. Summary of the invention

[0004] In order to develop a cleansing soap that can balance the irritation of the soap body, the richness of the foam and the cleaning ability, the first aspect of the present invention provides an olive oil fat cleansing soap. The preparation raw materials include, by weight percentage: a solvent supplemented to 100%, a hardness regulator 7-20%, a fatty acid 8-25%, a skin conditioner 0-5%, a fat 5-18%, a surfactant 1-10%, and an auxiliary agent 0.5-7.5%.

[0005] As a preferred embodiment, the oil comprises olive oil or olive oil pomace, or a combination of both.

[0006] As a preferred embodiment, the olive oil or olive oil residue is obtained by cold pressing process.

[0007] As a preferred embodiment, the solvent is an alcohol aqueous solution, including deionized water and an alcohol solvent, and the alcohol solvent includes at least one of sorbitol, ethanol, glycerol, polyethylene glycol, propylene glycol, and butylene glycol.

[0008] As a preferred embodiment, the propylene glycol is 1,3-propylene glycol; and the polyethylene glycol is polyethylene glycol-8.

[0009] As a preferred embodiment, the fatty acid includes at least two of palmitic acid, stearic acid, lauric acid, and myristic acid.

[0010] As a preferred embodiment, the surfactant includes at least one of anionic surfactant, cationic surfactant and nonionic surfactant.

[0011] As a preferred embodiment, the anionic surfactant includes at least one of sodium lauryl polyether sulfate, sodium lauryl sulfate, ammonium lauryl sulfosuccinate, disodium lauryl polyoxyethylene ether sulfosuccinate, and lauryl phosphate.

[0012] As a preferred embodiment, the anionic surfactant includes at least one of sodium laureth sulfate, sodium lauryl sulfate, and ammonium lauryl sulfosuccinate.

[0013] As a preferred embodiment, the weight ratio of the fatty acid, oil, anionic surfactant and alcohol solvent is (8-25): (5-18): (5-18): (20-50).

[0014] The inventors found in the experimental process that by using olive oil or olive oil residue, fatty acids and sodium hydroxide to react, and in combination with anionic surfactants, sucrose and polyols, a hard soap with rich and dense foam can be prepared. The possible reason is that the INS value of olive oil is low, so the amount of olive oil used in the soap body is low, and the effects of rich unsaturated fatty acids, vitamins and antioxidants in olive oil cannot be fully exerted. In this application, by increasing the amount of olive oil or olive oil residue added, and adjusting the amount of fatty acids, anionic surfactants, sucrose and polyols used, the hardness of the soap body is increased, and the compatibility of oils and fatty acids in the system is improved, and the soap body is not easy to stratify. The inventors further found that the weight ratio of fatty acids, oils, anionic surfactants and polyols (8-25): (5-18): (5-18): (20-50) can maintain a certain soap body hardness while having rich foam and no astringency during washing, because a good soap-forming reaction can occur at a certain temperature to obtain a soap body with uniform texture.

[0015] As a preferred embodiment, the skin conditioning agent includes at least one of PEG-7 glyceryl cocoate, polyquaternium-39, polyquaternium-47, and polyquaternium-7.

[0016] As a preferred embodiment, the auxiliary agent includes an antioxidant, a pH adjuster, a chelating agent, a flavor, and a pigment; and the hardness adjuster includes at least one of sucrose and sodium chloride.

[0017] As a preferred embodiment, the antioxidant includes at least one of tocopherol acetate and pentaerythritol tetrakis (di-tert-butyl hydroxyhydrocinnamate).

[0018] As a preferred embodiment, the pH regulator includes sodium hydroxide; the chelating agent includes disodium EDTA.

[0019] As a preferred embodiment, in terms of weight percentage, the antioxidant is 0.01-0.5%, the pH adjuster is 0.5-5%, the chelating agent is 0-0.5%, the flavor is 0-1%, and the pigment is 0-0.5%.

[0020] A second aspect of the present invention provides a method for preparing an olive oil fat cleansing soap, comprising the following steps:

[0021] S1: Mix fatty acids, oils and antioxidants, heat to 65-70°C, stir and dissolve until transparent, and obtain the oil phase for later use;

[0022] S2: Mix sorbitol, glycerol, polyethylene glycol and propylene glycol in a main pot, add surfactant while stirring at room temperature, stir and mix evenly, heat to 65-70℃ and set aside;

[0023] S3: 5-25% by weight of deionized water, a chelating agent, and a pH adjuster are mixed and stirred to be uniform, cooled to room temperature, and ethanol is added to obtain a neutralization solution for use;

[0024] S4: Mix the sodium chloride and the remaining deionized water and stir evenly, add the skin conditioning agent, mix evenly, and obtain a conditioning solution for use;

[0025] S5: Add the oil phase into the main pot, start stirring at 2000-4000 rpm for 2-5 minutes, add the neutralizing liquid, and stir and homogenize for 20-40 minutes;

[0026] S6: Add the conditioning liquid into the main pot, mix and stir evenly, add sucrose, pigment, and flavor in turn, mix and stir evenly, filter and pour into a mold to cool after passing the test.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) The olive oil fat cleansing soap of the present invention is prepared by reacting olive oil or olive oil residue, fatty acid and sodium hydroxide, and using an anionic surfactant, combined fatty acid, sucrose and alcohol solvent to obtain a hard cleansing soap with rich and dense foam.

[0029] (2) The olive oil fat cleansing soap of the present invention comprises fatty acids, oils, anionic surfactants, and pure solvents in a weight ratio of (8-25): (5-18): (5-18): (20-50). This can maintain a certain soap body hardness while producing rich foam, reduce the astringency during rinsing, prevent dryness after washing, and reduce the irritation of fatty acid soap.

[0030] (3) The olive oil fat cleansing soap of the present invention retains most of the natural ingredients by adding a large amount of olive oil or olive oil residue obtained by cold pressing process, and is rich in unsaturated fatty acids, vitamins and antioxidants. It is a fat suitable for human nutrition, and the cleansing soap made of it has the effect of moisturizing and emollient.

[0031] (4) The preparation process of the olive oil fat cleansing soap of the present invention is maintained in a stable temperature range throughout the whole process, which reduces the multiple heating or cooling steps in the production process and has the effect of reducing energy consumption.

[0032] (5) The olive oil fat cleansing soap of the present invention can be made not only from olive oil but also from olive oil residue, thereby making great use of resources and preventing waste. While maintaining a certain cleaning power, it will not cause skin damage due to long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a test diagram of the initial foam height of the olive oil fat cleansing soap prepared in Examples 1-14, from left to right are Examples 1-14.

[0034] Figure 2 This is a data chart of the foam richness of the olive oil fat cleansing soap prepared in Examples 1, 2, 3, and 8 during use by consumers.

[0035] Figure 3 This is a data chart showing the cleanliness of the olive oil fat cleansing soap prepared in Examples 1, 2, 3, and 8 after use by consumers.

[0036] Figure 4 This is a data graph showing the degree of skin hydration and moisturizing after consumers use the olive oil fat cleansing soap prepared in Examples 1, 2, 3, and 8.

[0037] Figure 5 This is a data graph showing the mildness and non-irritation level of the olive oil fat cleansing soap prepared in Examples 1, 2, 3, and 8 during and after use by consumers.

[0038] Figure 6 These are physical pictures of the olive oil ester cleansing soaps prepared in Examples 1-14. The first row, from left to right, are appearance pictures of the olive oil ester cleansing soaps of Examples 1-7, and the second row, from left to right, are appearance pictures of the olive oil ester cleansing soaps of Examples 8-14. DETAILED DESCRIPTION

[0039] Example

[0040] An olive oil fat cleansing soap, in terms of weight percentage, see Tables 1 and 2 below.

[0041] Table 1

[0042]

[0043]

[0044]

[0045] Table 2

[0046]

[0047]

[0048] The polyethylene glycol-8 was purchased from Dow Chemical (Shanghai) Company Limited. The brand name is CARBOWAX TM SENTRY TM Polyethylene Glycol 400 NF.

[0049] The PEG-7 glyceryl cocoate was purchased from BASF (China) Co., Ltd. with the brand name HE.

[0050] The polyquaternium-39 is purchased from Lubrizol Advanced Materials, Inc. under the brand name MERQUAT TM 3330PR POLYMER.

[0051] The polyquaternium-47 is purchased from Lubrizol Advanced Materials, Inc. under the brand name MERQUAT TM 2001 POLYMER.

[0052] The polyquaternium salt-7 is purchased from Lubrizol Advanced Materials, Inc., with the brand name MERQUAT TM 550PR POLYMER.

[0053] The olive oil was purchased from Longnan Xiangyu Olive Development Co., Ltd.; trade name: Olive oil, pure physical cold pressing process.

[0054] The olive oil residue is sourced from Longnan Xiangyu Olive Development Co., Ltd.; it is the olive oil residue precipitate obtained by storing the oil precipitate of olive oil in a pure physical cold pressing process in a low constant temperature environment of 15° C.-22° C. for one year.

[0055] Example 1

[0056] A method for preparing olive oil fat cleansing soap comprises the following steps:

[0057] S1: Mix fatty acids, oils and antioxidants, heat to 65-70°C, stir and dissolve until transparent, and obtain the oil phase for later use;

[0058] S2: Mix sorbitol, glycerol, polyethylene glycol and propylene glycol in a main pot, add surfactant while stirring at room temperature, stir and mix evenly, heat to 65-70℃ and set aside;

[0059] S3: 15% by weight of deionized water, a chelating agent, and a pH adjuster are mixed and stirred to be uniformly mixed, cooled to room temperature, and ethanol is added to obtain a neutralization solution for use;

[0060] S4: Mix the sodium chloride and the remaining deionized water and stir evenly, add the skin conditioning agent, mix evenly, and obtain a conditioning solution for use;

[0061] S5: Add the oil phase into the main pot, start stirring at 3000 rpm for 3 minutes, add the neutralizing liquid, and stir and homogenize for 30 minutes;

[0062] S6: Add the conditioning liquid into the main pot, mix and stir evenly, add sucrose, pigment, and flavor in turn, mix and stir evenly, filter and pour into a mold to cool after passing the test.

[0063] The preparation methods of Examples 2-14 are the same as those of Example 1.

[0064] Note: If the amount of material in Examples 2-14 is less than that in Example 1, the corresponding preparation steps are automatically ignored.

[0065] See the actual pictures of Examples 1-14. Figure 6 .

[0066] Performance Testing

[0067] 1. Foam performance test

[0068] Weigh 0.25g of the sample of Example 1-14 into a 550mL container, add deionized water to make up to 100g, seal, and place in a constant temperature water bath at 40°C for standby use. After the sample is completely dissolved and evenly transparent, take it out and place it in a constant temperature water bath at 25°C for standby use. Use the same method to shake up and down 10 times, and record the initial foam height after shaking. Test data is shown in Table 3. Test results are shown in Figure Figure 1, from left to right are Examples 1-14.

[0069] Table 3

[0070] Initial foam height / cm Example 1 11.62 Example 2 11.74 Example 3 11.11 Example 4 10.22 Example 5 8.43 Example 6 8.22 Example 7 10.45 Example 8 11.26 Example 9 10.49 Example 10 10.01 Embodiment 11 9.83 Example 12 7.65 Embodiment 13 9.11 Embodiment 14 8.83

[0071] Conclusion: The foams of Example 1, Example 2, Example 3 and Example 8 are relatively good.

[0072] 2. Consumer evaluation test

[0073] Four groups of samples, namely, Example 1, Example 2, Example 3, and Example 8, were selected for consumer testing, and 15 consumers were selected for evaluation. The evaluation dimensions included: the richness of foam during use, the clarity after use, the hydration and moisturizing of the skin after use, and the mildness and non-irritation during / after use (A strongly agrees, B relatively agrees, C somewhat agrees, D neither agrees nor disagrees, E somewhat disagrees, F relatively disagrees, and G strongly disagrees). The test results are shown in Figure 2-5 , Ⅰ: Example 1; Ⅱ: Example 2; Ⅲ: Example 3; Ⅳ: Example 8.

[0074] The proportion of A = (number of people who chose A / total number of people) × 100%; (The calculation formula for B, C, D, E, F, G is the same as A.)

[0075] Conclusion: There was no adverse reaction during use of the four groups of samples, and they were mild and non-irritating during and after use; the overall foam was relatively rich, the foam of Examples 1, 2, and 3 was relatively good, and the foam of Example 8 was relatively poor; the overall had the characteristic of being clean after use; the overall had the characteristic of moisturizing the skin after use.

Claims

1. An olive oil fat cleansing soap, characterized in that: In terms of weight percentage, the raw materials include: solvent supplemented to 100%, hardness regulator 7-20%, fatty acid 8-25%, skin conditioner 0-5%, oil 5-18%, surfactant 1-10%, and auxiliary agent 0.5-7.5%.

2. The olive oil fat cleansing soap according to claim 1, characterized in that: The oil comprises one or a combination of olive oil or olive pomace.

3. The olive oil fat cleansing soap according to claim 2, characterized in that: The solvent is an alcohol aqueous solution, including deionized water and an alcohol solvent, and the alcohol solvent includes at least one of sorbitol, ethanol, glycerol, polyethylene glycol, propylene glycol, and butylene glycol.

4. The olive oil fat cleansing soap according to claim 3, characterized in that: The fatty acids include at least two of palmitic acid, stearic acid, lauric acid and myristic acid.

5. The olive oil fat cleansing soap according to claim 4, characterized in that: The surfactant includes at least one of anionic surfactants, cationic surfactants and nonionic surfactants.

6. The olive oil fat cleansing soap according to claim 5, characterized in that: The anionic surfactant includes at least one of sodium lauryl polyether sulfate, sodium lauryl sulfate, ammonium lauryl sulfosuccinate, disodium lauryl polyoxyethylene ether sulfosuccinate, and lauryl phosphate.

7. The olive oil fat cleansing soap according to claim 5, characterized in that: The weight ratio of the fatty acid, oil, anionic surfactant and alcohol solvent is (8-25): (5-18): (5-18): (20-50).

8. The olive oil fat cleansing soap according to claim 5, characterized in that: The skin conditioning agent includes at least one of PEG-7 glyceryl cocoate, polyquaternium-39, polyquaternium-47, and polyquaternium-7.

9. The olive oil fat cleansing soap according to claim 5, characterized in that: The auxiliary agents include antioxidants, pH regulators, chelating agents, flavors, and pigments; the hardness regulator includes at least one of sucrose and sodium chloride.

10. A method for preparing the olive oil fat cleansing soap according to claim 9, characterized in that: The following steps are involved: S1: Mix fatty acids, oils and antioxidants, heat to 65-70°C, stir and dissolve until transparent, and obtain the oil phase for later use; S2: Mix sorbitol, glycerol, polyethylene glycol and propylene glycol in a main pot, add surfactant while stirring at room temperature, stir and mix evenly, heat to 65-70℃ and set aside; S3: 5-25% by weight of deionized water, a chelating agent, and a pH adjuster are mixed and stirred to be uniform, cooled to room temperature, and ethanol is added to obtain a neutralization solution for use; S4: Mix the sodium chloride and the remaining deionized water and stir evenly, add the skin conditioning agent, mix evenly, and obtain a conditioning solution for use; S5: Add the oil phase into the main pot, start stirring at 2000-4000 rpm for 2-5 minutes, add the neutralizing liquid, and stir and homogenize for 20-40 minutes; S6: Add the conditioning liquid into the main pot, mix and stir evenly, add sucrose, pigment, and flavor in turn, mix and stir evenly, filter and pour into a mold to cool after passing the test.

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