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KR-20260064295-A - Method of manufacturing natural liquid soap using fresh green tea leaves

KR20260064295AKR 20260064295 AKR20260064295 AKR 20260064295AKR-20260064295-A

Abstract

The present invention relates to a method for manufacturing liquid soap, and more specifically, to a method for manufacturing a natural liquid soap that has excellent cleansing power and minimizes skin irritation using only natural materials such as fresh green tea leaves without adding surfactants or chemical synthetic substances. The method for manufacturing natural liquid soap according to the present invention comprises the steps of: preparing a fresh green tea extract by extracting active ingredients from fresh green tea leaves; preparing a liquid soap paste by mixing coconut oil, castor oil, jojoba oil, grapeseed oil, sunflower oil, caustic potash (KOH-95%), and distilled water; preparing a herbal extract containing ingredients of honeysuckle, willow bark, licorice, Houttuynia cordata, Trianthema portulacastrum, Portulaca oleracea, and Magnolia officinalis; and mixing and diluting the fresh green tea extract and the herbal extract in the liquid soap paste.

Inventors

  • 김영희

Assignees

  • 김영희

Dates

Publication Date
20260507
Application Date
20241031

Claims (7)

  1. A step of preparing a fresh green tea extract by extracting active ingredients from fresh green tea leaves; A step of preparing a liquid soap paste by mixing coconut oil, castor oil, jojoba oil, grapeseed oil, sunflower oil, caustic potash (KOH-95%), and distilled water; A step of preparing a herbal extract containing honeysuckle, willow bark, licorice, Houttuynia cordata, Trianthema portulacastrum, Portulaca oleracea, and Magnolia officinalis components; A method for manufacturing natural liquid soap comprising the step of mixing and diluting fresh green tea extract and herbal extract into the above liquid soap paste.
  2. In Article 1, A method for manufacturing natural liquid soap characterized by further including the step of sterilizing the above-mentioned green tea leaf raw herb with a citric acid solution before distilling.
  3. In Article 2, A method for manufacturing natural liquid soap, characterized in that, in the step of sterilizing the fresh green tea leaves with a citric acid solution, 1 to 1.5 parts by weight of citric acid are mixed with 100 parts by weight of water and stirred until the citric acid is completely dissolved, and after washing the fresh green tea leaves, they are sterilized by soaking them in the citric acid solution, washed again with purified water, and then dried.
  4. In Article 1, A method for manufacturing natural liquid soap, characterized in that, in the step of manufacturing the liquid soap paste above, 30 to 40 parts by weight of coconut oil, 5 to 10 parts by weight of castor oil, 1 to 3 parts by weight of jojoba oil, 5 to 10 parts by weight of grapeseed oil, 10 to 20 parts by weight of sunflower oil, 15 to 20 parts by weight of caustic potash (KOH-95%), and 15 to 20 parts by weight of distilled water are added to 100 parts by weight of the total liquid soap paste.
  5. In Article 1, A method for manufacturing natural liquid soap characterized by, in the step of manufacturing the herbal extract above, adding 16 to 20 parts by weight of honeysuckle, 16 to 20 parts by weight of willow bark, 16 to 20 parts by weight of licorice, 16 to 20 parts by weight of Houttuynia cordata, 8 to 10 parts by weight of Trianthema portulacastrum, 8 to 10 parts by weight of Portulaca oleracea, and 8 to 10 parts by weight of Magnolia officinalis to 100 parts by weight of the total herbal extract.
  6. In Article 1, A method for manufacturing natural liquid soap, characterized in that, in the step of diluting the liquid soap paste, 160 to 170 parts by weight of fresh green tea extract and 140 to 150 parts by weight of herbal extract are mixed and diluted with respect to 100 parts by weight of the liquid paste.
  7. In Article 6, A method for manufacturing natural liquid soap, characterized in that, in the step of diluting the liquid soap paste, 2.5 to 3.5 parts by weight of baking soda, 70 to 80 parts by weight of sugar, 55 to 65 parts by weight of soapwort extract, 0.8 to 1.2 parts by weight of citric acid, 16 to 20 parts by weight of a solubilizer, 0.4 to 0.6 parts by weight of a complexing agent, and 5.3 to 6.8 parts by weight of an aroma oil are further added to 100 parts by weight of the liquid soap paste.

Description

Method of manufacturing natural liquid soap using fresh green tea leaves The present invention relates to a method for manufacturing liquid soap, and more specifically, to a method for manufacturing a natural liquid soap that has excellent cleansing power and minimizes skin irritation using only natural materials such as raw green tea leaves, without adding surfactants or chemically synthesized substances. The stratum corneum exists on the surface of the skin to provide primary protection; however, various harmful impurities adhere to or penetrate the skin of humans engaged in social activities while exposed to various polluted environments. Since impurities that adhere to or penetrate the skin serve as nutrients for bacteria or hinder smooth cellular activity, causing skin troubles such as dermatitis, and cause side effects such as blocking sweat glands to impair the body's temperature regulation function through sweat release, it is necessary to cleanse the skin frequently. A cleanser is desirable that possesses appropriate foaming power in both cold and hot water, effectively removes oily and water-based contaminants attached to the skin, causes minimal skin irritation, prevents excessive degreasing, and offers excellent moisturizing properties to supply moisture easily lost during cleansing while preventing moisture evaporation, thereby preventing skin roughness and increasing skin flexibility. Typically, cleansers contain surfactants, cleansing aids, moisturizers such as moisturizing ingredients and oils, active ingredients for functionality, and fragrances; the appropriate mixing of surfactants and other ingredients imparts moisturizing, cleansing, and foaming power to the product. When examining product characteristics based on surfactants, using only fatty acid soap components, which are anionic surfactants, offers the advantage of excellent foaming and cleansing power; however, excessive cleansing power can weaken or roughen the skin. On the other hand, surfactants excluding fatty acid soap components provide moderate foaming power, but the poor skin adhesion and rinsing properties leave a slippery feeling, and occasionally cause skin irritation. Therefore, as skin troubles caused by surfactants frequently occur in sensitive skin, there is a need to develop a liquid soap that offers excellent foaming and cleansing power without using chemical surfactants, while minimizing skin troubles. Meanwhile, various natural liquid soaps have been available in the past. Most of these conventional natural liquid soaps have been manufactured by extracting active ingredients from plant-based raw materials, such as dried grass, using methods like hot water extraction. Dried grass is a state in which fresh grass is dried to remove moisture; this process significantly reduces moisture content, makes it difficult for mold or bacteria to proliferate, and improves shelf life. Its light weight makes it advantageous for mass production, so it is primarily used as a raw material in the manufacture of natural cosmetics and soaps. On the other hand, fresh grass retains its original moisture without undergoing a drying process after harvesting, offering the advantage of freshness; however, its high moisture content makes it prone to spoilage, resulting in the disadvantage of needing to be consumed within a short period. Furthermore, while some active ingredients may be lost during the drying process of dried grass, fresh grass retains its active ingredients intact. In other words, although fresh grass contains more active ingredients and is closer to its natural state than dried grass, its shelf life is inferior; consequently, dried grass is currently used in the manufacture of most natural liquid soaps. Therefore, there is a need to develop a natural liquid soap that uses fresh herbs as a raw material to compensate for their disadvantages while maximizing their advantages. FIG. 1 is a process flowchart of a method for manufacturing natural liquid soap using raw green tea leaves according to the present invention. FIG. 2 is a photograph of the results of a culture experiment to verify the effect of citric acid sterilization during the natural liquid soap manufacturing process according to the present invention. FIG. 3 is a photograph of the experimental results for verifying the foaming power of soapwort extract and sugar components added during the natural liquid soap manufacturing process according to the present invention. Figure 4 is a photograph of a pore comparison experiment before and after using natural liquid soap according to the present invention. Figure 5 is a photograph of a sebum comparison experiment before and after the use of natural liquid soap according to the present invention. Hereinafter, a method for manufacturing natural liquid soap using raw green tea according to the present invention will be described in detail with reference to the attached drawings and preferred embodiments. As illustrated in FI