Loofah sponge and wheat germ oil handmade transparent bath soap and preparation method thereof
By preparing a handmade transparent bath soap using loofah sponge and wheat germ oil, the natural properties of loofah sponge and wheat germ oil are combined, solving the problem of additives in existing products and achieving natural and safe skin cleansing and nourishing effects.
Patent Information
- Application Number
- CN202511094198.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2025-10-31
AI Technical Summary
Existing commercially available cleansing soaps made from wheat germ oil contain unfriendly chemical ingredients, and there is a lack of bath products made from two natural ingredients: loofah and wheat germ oil. These products cannot effectively remove dead skin cells and nourish the skin.
Using naturally harvested loofah sponge and wheat germ oil as the main raw materials, a specific preparation method is used to inject transparent soap liquid into a loofah sponge mold and cool and solidify it to produce a handmade transparent bath soap made of loofah sponge and wheat germ oil. Combining the natural properties of both, it can remove dirt from the skin surface and nourish the skin.
It achieves natural and safe skin cleansing and nourishing effects, with excellent cleansing and skin care properties. It removes dead skin cells and promotes blood circulation. The product has excellent indicators such as hardness, transparency, pH value, foaming power and detergency.
Smart Images
Figure CN120859900A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of daily necessities and relates to a handmade transparent bath soap made with loofah sponge and wheat germ oil and its preparation method. Background Technology
[0002] Bath products are cleansing products that come into direct contact with human skin. With the development of the times, people's demands for the quality and efficacy of bath products are constantly increasing. Various functional bath products are emerging on the market and have been well-received by consumers. Modern people often experience a slowdown in metabolism due to factors such as poor external environment, unbalanced diet, irregular lifestyle, staying up late, smoking, drinking alcohol, and emotional stress. Abnormal metabolism prevents keratinocytes from shedding naturally, causing them to accumulate thickly on the surface, leading to rough, dull skin and even clogged pores.
[0003] The natural plant components contained in loofah sponges, such as galactomannan, mannan, and xylan, give it excellent effects in promoting blood circulation, detoxifying, and reducing swelling. Using a loofah sponge to scrub the skin during bathing provides a natural massage, promotes blood circulation, and helps to naturally eliminate toxins from the body. It also effectively removes oil and dirt from the body, prevents clogged pores, and helps maintain healthy skin. Although loofah sponges are relatively hard when dry, they soften upon contact with water, adding comfort and convenience to the bathing process. Wheat germ oil is a natural plant oil with a distinctive wheat aroma. It is rich in unsaturated fatty acids, linoleic acid, linolenic acid, octacosanolic acid, and other unsaturated fatty acids, as well as abundant vitamin E, minerals, and trace elements, which can effectively nourish the skin and improve dryness and aging problems.
[0004] Because wheat germ oil has a low hardness value after soaping, commercially available cleansing soaps made from wheat germ oil often contain low levels of wheat germ oil and contain various additives. For example, imported brand KAPPUS wheat germ soap contains EDTA (a chelating agent and water softener), tetrasodium hydroxyethyl phosphate (a thickener), benzyl alcohol (a preservative and fragrance fixative), CI15510 (a colorant), and CI47005 (a colorant). The natural fruit oil and essential oil soap – wheat germ product – produced by Shenzhen Kedi Biotechnology Co., Ltd. uses wheat germ oil as its raw material, but also contains sorbitol (a preservative). These added ingredients are not suitable for users with sensitive skin.
[0005] There are currently no bath products on the market made from two natural raw materials: loofah sponge and wheat germ oil. To solve the various problems existing in the products, this invention will give full play to the advantages of both to prepare a skin-friendly bath soap product that can effectively remove dead skin cells, massage the skin, and nourish the skin. Summary of the Invention
[0006] To overcome the aforementioned technical problems, this invention provides a handmade transparent bath soap made with loofah sponge and wheat germ oil, along with its preparation method. The invention involves peeling and deseeding naturally harvested whole loofah sponges, then cutting them into cylindrical segments of suitable length. The segments are softened and placed in a circular silicone mold with a diameter closely matching the segments. A transparent soap solution, primarily composed of wheat germ oil, is prepared. This solution is quickly transferred to the mold containing the loofah segments, ensuring the amount of wheat germ oil is just above the loofah. After cooling and solidification, the soap is demolded to obtain the loofah sponge and wheat germ bath soap of this invention. The transparent soap and loofah are naturally integrated, and the veins of the loofah are clearly visible from the outside. The soap is left to cure at room temperature for 4-6 weeks, during which time its properties are continuously measured. The organic combination of wheat germ soap and loofah allows the soap to remove dirt from the skin's surface, the loofah to exfoliate and promote blood circulation, and the wheat germ oil to nourish the skin.
[0007] The loofah sponge and wheat germ oil handmade transparent bath soap of this invention: the presence of natural loofah sponge can be observed with the naked eye, and the soap completely encapsulates it. The soap components, by weight ratio, include 19-27 parts wheat germ oil, 3-6 parts palm oil, 3-6 parts lauric acid, 4-6 parts myristic acid, 3-4 parts stearic acid; 15 parts ethanol, 5.5-6 parts sodium hydroxide, 3 parts sucrose, 7-8 parts glycerol, 9-10 parts propylene glycol, and the remaining part is distilled water.
[0008] The preparation method of the transparent bath soap made from loofah sponge and wheat germ according to the present invention includes the following steps:
[0009] 1) After washing the loofah sponge, soak it in sodium hydroxide solution to soften it. Then wash the loofah sponge with distilled water, dry its surface moisture appropriately, and place it in a mold.
[0010] 2) Weigh wheat germ oil, palm oil, lauric acid, myristic acid, stearic acid and ethanol into container A, and heat to 45-50℃;
[0011] 3) Weigh sodium hydroxide into container B, place it in an ice bath, slowly add distilled water, stir until the alkali is completely dissolved, and preheat to 45-50℃;
[0012] 4) Slowly transfer the lye solution in container B to container A and then quickly start stirring. Adjust the stirring speed according to the state of the mixture in container A. Stir until the soap solution begins to thicken and shows a "Trace" state.
[0013] 5) Weigh the sucrose into container C, add distilled water to dissolve it completely, then add glycerol and propylene glycol, preheat to 45-50℃, and when the mixture in container A shows a "Trace" state in step 4, quickly transfer the mixture in container C to container A, stir thoroughly and then stop heating.
[0014] 6) Transfer the mixture in container A from step 5 into a mold containing loofah sponge, cover the surface with plastic wrap, let it cool at room temperature, and then unmold.
[0015] 7) After unmolding, air dry the soap on a pure wooden soap drying rack at room temperature for 4-6 weeks. Loofah and wheat germ bath soap;
[0016] Furthermore, in the above technical solution, in step 1), the softening time is 30-60 minutes.
[0017] Furthermore, in the above technical solution, in step 4), the stirring time is 10-20 minutes.
[0018] Furthermore, in the above technical solution, in step 5), the stirring time is 2-5 minutes.
[0019] Furthermore, in the above technical solution, in step 5), the cooling time is 10-15 hours.
[0020] Furthermore, in the above technical solution, in step 7), the drying time is 4-6 weeks.
[0021] Furthermore, in the above technical solution, during step 7), the hardness, transparency, pH, foaming power, detergency, and exfoliation properties of the product need to be continuously tested during the drying process.
[0022] Compared with existing technologies, the wheat germ oil in this invention contains high levels of unsaturated fatty acids, linoleic acid, phytosterols, phospholipids, octacosanol, and various physiologically active ingredients. Under alkaline conditions, wheat germ oil undergoes a saponification reaction to produce natural sodium fatty acids and glycerol. The vitamin E abundant in wheat germ oil can be completely preserved. Natural loofah sponge, with its natural exfoliating and cleansing properties, makes this product significantly superior in cleansing and skin care properties compared to similar products synthesized from chemical raw materials. Attached Figure Description
[0023] Figure 1 This is a graph showing the change in needle penetration of the loofah sponge and wheat germ oil handmade transparent bath soap in Example 1;
[0024] Figure 2 This is a graph showing the change in whiteness of the loofah sponge and wheat germ oil handmade transparent bath soap in Example 1;
[0025] Figure 3The stain-removing power of the loofah sponge and wheat germ oil handmade transparent bath soap in Example 1 is shown in the image.
[0026] Figure 4 This is a diagram showing the exfoliation of area X1 of the arm using the loofah and wheat germ oil handmade transparent bath soap in Example 1.
[0027] Figure 5 This is a diagram showing the exfoliation of two areas of the arm using a loofah and wheat germ oil handmade transparent bath soap in Example 1.
[0028] Figure 6 This is a graph showing the trend of foam height change in Example 1. Detailed Implementation
[0029] To make the technical problem to be solved by the present invention, the technical solution adopted, and the beneficial effects achieved clearer, the present invention will be described in detail below with reference to specific embodiments.
[0030] Example 1
[0031] 1) After washing the loofah sponge with a diameter of 8.5cm and a thickness of 2.5cm, add 18% sodium hydroxide solution (mass fraction) and soften for 40 minutes. After softening, wash the loofah sponge with plenty of distilled water, dry its surface moisture appropriately, and place it in a silicone mold with a diameter of 9.5cm and a height of 5cm.
[0032] 2) Weigh 19 parts wheat germ oil, 4.5 parts lauric acid, 6 parts myristic acid, 4.5 parts palm oil, 4 parts stearic acid and 15 parts anhydrous ethanol into container A, and heat to 45-50℃.
[0033] 3) Weigh 5.5 parts of sodium hydroxide into container B, place container B in an ice bath, then slowly add 14 parts of distilled water, stir until the alkali is completely dissolved, and preheat to 45-50℃.
[0034] 4) After the lye solution in container B is slowly transferred to container A, start stirring immediately. Adjust the stirring speed according to the state of the mixture in container A. Stir for about 15 minutes until the soap solution begins to thicken and shows a "Trace" state.
[0035] 5) Weigh 3 parts of sucrose into container C, add 6.5 parts of distilled water to dissolve it completely, add 8 parts of glycerol and 10 parts of propylene glycol into container C, preheat to 45-50℃, and when the mixture in container A shows a "Trace" state in step 3, quickly transfer the mixed solution in container C into container A, stir thoroughly for 5 minutes and then stop heating.
[0036] 6) Pour the mixture from container A in step 5 into the mold containing the loofah sponge prepared in step 1. The soap solution should be slightly higher than the loofah sponge. Cover the surface with a layer of plastic wrap and let it stand and cool at room temperature for 12 hours before unmolding to obtain the loofah sponge wheat germ oil handmade transparent bath soap.
[0037] 7) At room temperature, the unmolded soap is dried on a pure wooden soap drying rack for 4 weeks (28 days). During this period, its various properties are continuously tested: hardness, transparency, pH, foaming power, detergency and exfoliation.
[0038] Hardness changes as follows Figure 1 As shown, the needle penetration gradually decreased with increasing settling time, while the hardness significantly increased, reaching 1.59 mm after 28 days of drying. Hardness testing was conducted according to the People's Republic of China standard QB / T 2485-2023, using an SD-2801A needle penetration tester. Hardness was measured at multiple points around the perimeter and center of each bar of transparent soap using the needle penetration tester, and the average value was taken. Each bar of soap underwent at least seven sampling tests.
[0039] Changes in transparency are illustrated by changes in whiteness, detected using a WSB-3Y microcomputer-based fluorescence whiteness meter, avoiding the loofah sponge during testing. Figure 2 As shown, the whiteness gradually increases with the drying time until it stabilizes at a certain value, while the transparency decreases until it approaches equilibrium. The loofah sponge is still clearly visible after 28 days.
[0040] The pH trend was detected using a Mettler Toledo S230-K pH meter. 1.50g of wheat germ oil soap was weighed and added to distilled water to prepare a 10% (w / w) wheat germ oil soap aqueous solution. The pH value was measured immediately after demolding, which was 11.24. After 14 days of drying, the pH was 7.42, and after 28 days of drying, it was 6.48.
[0041] The cleaning power of this handmade transparent bath soap made with loofah sponge and wheat germ oil is as... Figure 3 As shown in the diagram. A represents three black circles of equal diameter, created with a ballpoint pen. B, from top to bottom, represents: 10 circles of water (wetted with tap water and rubbed clockwise), 10 circles of water (wetted with wheat germ oil soap without loofah) and 10 circles of water (wetted with loofah and wheat germ oil handmade transparent bath soap). C, from top to bottom, represents the stain marks after rinsing with tap water. The diagram shows the cleaning power: Loofah and wheat germ oil transparent bath soap > Wheat germ oil transparent bath soap without loofah > Tap water.
[0042] The Zhishanghemei M70001666 skin analyzer was used to quantitatively assess skin condition under two different cleansing conditions. Figure 4The study included a control group (unwashed, serving as a blank control) and an experimental group (using the handmade transparent bath soap made with loofah and wheat germ oil developed in this invention). Arms were washed with the handmade transparent bath soap made with loofah and wheat germ oil, and the degree of exfoliation before and after washing was compared. The exfoliation level of group A was 21, group B was 6, and the exfoliation level of the transparent bath soap without loofah was 15. The test results indicate a good exfoliation effect. Figure 5 The study included a control group (unwashed, serving as a blank control) and an experimental group (using the handmade transparent bath soap made with loofah and wheat germ oil developed in this invention). Arms were washed with the handmade transparent bath soap made with loofah and wheat germ oil, and the degree of exfoliation before and after washing was compared. The exfoliation level of group A was 33, group B was 18, and the exfoliation level of the transparent bath soap without loofah was 26. The test results indicate a good exfoliation effect.
[0043] The foaming properties were determined using a 2152 Roche foam analyzer according to the standard method of QB / T 1913-2004. Figure 6 As the settling time increased, the foam height gradually decreased, reaching 41 mm at 15 minutes, demonstrating that the product has good foaming properties.
[0044] Example 2
[0045] 1) Wash a loofah sponge with a diameter of 8.5cm and a thickness of 2.5cm, then add an 18% sodium hydroxide solution (mass fraction) and soften for 40 minutes. After softening, wash the loofah sponge with distilled water, let it dry appropriately, and place it in a silicone mold with a diameter of 9.5cm and a height of 5cm.
[0046] 2) Weigh 16 parts wheat germ oil, 6 parts lauric acid, 8 parts myristic acid, 6 parts palm oil, 4 parts stearic acid and 15 parts anhydrous ethanol into container A and heat to 45-50℃.
[0047] 3) Weigh 6 parts of sodium hydroxide into container B, place container B in an ice bath, then slowly add 16 parts of distilled water, stir until the alkali is completely dissolved, and preheat to 45-50℃.
[0048] 4) After the lye solution in container B is slowly transferred to container A, start stirring immediately. Adjust the stirring speed according to the state of the mixture in container A. Stir for about 15 minutes until the soap solution begins to thicken and shows a "Trace" state.
[0049] 5) Weigh 3 parts of sucrose into container C, add 4 parts of distilled water to dissolve completely, add 7 parts of glycerol and 9 parts of propylene glycol into container C, preheat to 45-50℃, and when the mixture in container A in step 3 shows a "Trace" state, quickly add the mixed solution in container C into container A, stir thoroughly for 3 minutes and then stop heating.
[0050] 6) Pour the mixture from container A in step 5 into the mold containing loofah sponge prepared in step 1, cover the surface with a layer of plastic wrap, let it stand and cool at room temperature for 12 hours, and then unmold to obtain loofah sponge wheat germ oil handmade transparent bath soap.
[0051] Example 3
[0052] 1) Wash a loofah sponge with a diameter of 8.5cm and a thickness of 2.5cm, then add an 18% sodium hydroxide solution (mass fraction) and soften for 40 minutes. After softening, wash the loofah sponge with distilled water, let it dry appropriately, and place it in a silicone mold with a diameter of 9.5cm and a height of 5cm.
[0053] 2) Weigh 21 parts wheat germ oil, 4 parts lauric acid, 5.5 parts myristic acid, 4 parts palm oil, 3.5 parts stearic acid and 15 parts ethanol into container A, and heat to 45-50℃.
[0054] 3) Weigh 5.5 parts of sodium hydroxide into container B, place container B in an ice bath, then slowly add 14 parts of distilled water, stir until the alkali is completely dissolved, and preheat to 45-50℃.
[0055] 4) Slowly pour the lye solution from container B into container A and then quickly start stirring. Adjust the stirring speed according to the state of the mixture in container A. Stir for about 15 minutes until the soap solution begins to thicken and shows a "Trace" state.
[0056] 5) Weigh 3 parts of sucrose into container C, add 7.5 parts of distilled water to dissolve completely, add 8 parts of glycerol and 10 parts of propylene glycol into container C, preheat to 45-50℃, and when the mixture in container A shows a "Trace" state in step 3, quickly add the mixed solution in container C into container A, stir thoroughly for 3 minutes and then stop heating.
[0057] 6) Pour the mixture from container A in step 5 into the mold containing loofah sponge prepared in step 1, cover the surface with a layer of plastic wrap, let it stand and cool at room temperature for 12 hours, and then unmold to obtain loofah sponge wheat germ oil handmade transparent bath soap.
[0058] Example 4
[0059] 1) Wash a loofah sponge with a diameter of 8.5cm and a thickness of 2.5cm, then add an 18% sodium hydroxide solution (mass fraction) and soften for 40 minutes. After softening, wash the loofah sponge with distilled water, let it dry appropriately, and place it in a silicone mold with a diameter of 9.5cm and a height of 5cm.
[0060] 2) Weigh 24 parts wheat germ oil, 4 parts lauric acid, 5 parts myristic acid, 4 parts palm oil, 3 parts stearic acid and 15 parts ethanol into container A, and heat to 45-50℃.
[0061] 3) Weigh 5.5 parts of sodium hydroxide into container B, place container B in an ice bath, and then slowly add 18.25g of 14 parts of distilled water, stirring until the alkali is completely dissolved, and preheat to 45-50℃.
[0062] 4) After the lye solution in container B is slowly transferred to container A, start stirring immediately. Adjust the stirring speed according to the state of the mixture in container A. Stir for about 11 minutes until the soap solution begins to thicken and shows a "Trace" state.
[0063] 5) Weigh 3 parts of sucrose into container C, add 4.5 parts of distilled water to dissolve completely, add 8 parts of glycerol and 10 parts of propylene glycol into container C, preheat to 45-50℃, and when the mixture in container A shows a "Trace" state in step 3, quickly add the mixed solution in container C into container A, stir thoroughly for 3 minutes and then stop heating.
[0064] 6) Pour the mixture from container A in step 5 into the mold containing loofah sponge prepared in step 1, cover the surface with a layer of plastic wrap, let it stand and cool at room temperature for 12 hours, and then unmold to obtain loofah sponge wheat germ oil handmade transparent bath soap.
[0065] Example 5
[0066] 1) After washing the loofah sponge with a diameter of 8.5cm and a thickness of 2.5cm, add 18% sodium hydroxide solution (mass fraction) and soften for 40 minutes. After softening, wash the loofah sponge with distilled water, dry its surface moisture appropriately, and place it in a silicone mold with a diameter of 9.5cm and a height of 5cm.
[0067] 2) Weigh 27 parts wheat germ oil, 3 parts lauric acid, 4 parts myristic acid, 3 parts palm oil, 3 parts stearic acid and 15 parts ethanol into container A, and heat to 45-50℃.
[0068] 3) Weigh 5.5 parts of sodium hydroxide into container B, place container B in an ice bath, then slowly add 14 parts of distilled water, stir until the alkali is completely dissolved, and preheat to 45-50℃.
[0069] 4) Slowly pour the lye solution from container B into container A and then quickly start stirring. Adjust the stirring speed according to the state of the mixture in container A. Stir for about 11 minutes until the soap solution begins to thicken and shows a "Trace" state.
[0070] 5) Weigh 3 parts of sucrose into container C, add 4.5 parts of distilled water to dissolve completely, add 8 parts of glycerol and 10 parts of propylene glycol into container C, preheat to 45-50℃, and when the mixture in container A shows a "Trace" state in step 3, quickly add the mixed solution in container C into container A, stir thoroughly for 3 minutes and then stop heating.
[0071] 6) Pour the mixture from container A in step 5 into the mold containing loofah sponge prepared in step 1, cover the surface with a layer of plastic wrap, let it stand and cool at room temperature for 12 hours, and then unmold to obtain loofah sponge wheat germ oil handmade transparent bath soap.
[0072] The effects of embodiments 1-5 of this invention are as follows: The wheat germ oil in this invention contains high levels of unsaturated fatty acids, linoleic acid, phytosterols, phospholipids, octacosanol, and various physiologically active ingredients. Under alkaline conditions, it undergoes a saponification reaction to produce natural sodium fatty acids and glycerol. Wheat germ oil is rich in vitamin E, which nourishes the skin. Natural loofah sponge, with its natural exfoliating and cleansing properties, makes this product significantly superior in cleansing and skincare properties compared to similar products synthesized from chemical raw materials. The product exhibits good hardness, transparency, pH, foam stability, detergency, and exfoliation.
[0073] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.
Claims
1. A handmade transparent bath soap made with loofah sponge and wheat germ oil, characterized in that: The appearance shows the presence of natural loofah sponge, which is completely encased in the soap. The soap components, by weight, include 19-27 parts wheat germ oil, 3-6 parts palm oil, 3-6 parts lauric acid, 4-6 parts myristic acid, 3-4 parts stearic acid; 15 parts ethanol, 5.5-6 parts sodium hydroxide, 3 parts sucrose, 7-8 parts glycerol, 9-10 parts propylene glycol, and the remainder is distilled water.
2. The method for preparing the transparent handmade bath soap made from loofah sponge and wheat germ oil as described in claim 1, characterized in that, Includes the following steps: 1) After washing the loofah sponge, soak it in sodium hydroxide solution to soften it. Then wash the loofah sponge with distilled water, dry its surface moisture appropriately, and place it in a mold. 2) Weigh wheat germ oil, palm oil, lauric acid, myristic acid, stearic acid and ethanol into container A, and heat to 45-50℃; 3) Weigh sodium hydroxide into container B, place it in an ice bath, slowly add distilled water, stir until the alkali is completely dissolved, and preheat to 45-50℃; 4) After slowly transferring the lye solution from container B to container A, start stirring immediately. Adjust the stirring speed according to the state of the mixture in container A, and stir until the soap solution begins to thicken and shows a "Trace" state. 5) Weigh the sucrose into container C, add distilled water to dissolve it completely, then add glycerol and propylene glycol, preheat to 45-50℃, and when the mixture in container A shows a "Trace" state in step 4, quickly transfer the mixture in container C to container A, stir thoroughly and then stop heating. 6) Transfer the mixture in container A from step 5 into a mold containing loofah sponge, cover the surface with plastic wrap, let it cool at room temperature, and then unmold. 7) After unmolding, air dry the soap on a pure wooden soap drying rack at room temperature for 4-6 weeks. Loofah and wheat germ bath soap.
3. The method for preparing the handmade transparent bath soap made from loofah sponge and wheat germ oil according to claim 2, characterized in that: In step 1), the softening time is 30-60 minutes.
4. The method for preparing the handmade transparent bath soap made from loofah sponge and wheat germ oil according to claim 2, characterized in that: In step 4), the stirring time is 10-20 minutes.
5. The method for preparing the handmade transparent bath soap made from loofah sponge and wheat germ oil according to claim 2, characterized in that: In step 5), the stirring time is 2-5 minutes.
6. The method for preparing the handmade transparent bath soap made from loofah sponge and wheat germ oil according to claim 2, characterized in that: In step 5), the cooling time is 10-15 hours.
7. The method for preparing the handmade transparent bath soap made from loofah sponge and wheat germ oil according to claim 2, characterized in that: In step 7), the drying time is 4-6 weeks.
8. The method for preparing the handmade transparent bath soap made from loofah sponge and wheat germ oil according to claim 2, characterized in that: In step 7), during the drying process, its hardness, transparency, pH, foaming power, detergency, and exfoliation properties need to be continuously tested.