Natural detergent composition with metal ion sequestering effect

Abstract

According to a natural detergent composition, a detergent composition according to one aspect does not use synthetic chemical components such as metal ion chelating agents, unlike conventional synthetic detergents, so it does not cause environmental pollution, is harmless to the human body, is non-irritating to the skin, has low mineral salt precipitation, and has excellent cleaning power.

Description

Technology Field

[0001] This relates to a natural detergent composition. Background Technology

[0002] Sequestering agents are chelating agents that bind to metal ions in aqueous solutions to form soluble chelate complexes, thereby preventing metal ions from precipitating due to other reagents. Examples of widely used sequestering agents include EDTA and NTA.

[0003] The first reason for using metal ion chelating agents in detergent compositions is to prevent a decrease in the cleaning power of the detergent.

[0004] In the case of surfactants that perform cleaning action, they lose their cleaning power if they are ionic, particularly if they possess anions, or if cationic substances are present in the aqueous solution. Generally, in the case of tap water or natural water, the cations are mostly metal salts, and most metal salts possess +2 valence cations. These are primarily calcium (Ca++) and magnesium (Mg++) ions, but other ions such as iron (Fe++) are also present. Soap is a surfactant possessing a carboxyl (COO-) anion, and even in this case, it loses its cleaning power and precipitation occurs in the presence of metal ions.

[0005] The second reason is the problem that in the case of cleaning water containing a high concentration of metal ions, these ions are deposited by high temperatures during cleaning and adhere to the surface of the items being cleaned, leaving metal salts as stains after washing. These metal salts that remain as stains are called water stains or scale. In the case of dishwashing, water stains, such as calcium, typically remain after washing. In this situation, sealing the metal ions can prevent the formation of water stains in advance.

[0006] Metal ion chelators and surfactants, which are currently commonly used in liquid dishwashing detergents to prevent water stains and enhance cleaning power, are known to cause ecological disturbance when applied in-situ methods due to their persistence and toxicity in the environment (Gr man et al., 2001; Saifullah et al., 2009) and may also cause secondary pollution such as the leaching of heavy metals (Gr man et al., 2003; Evangelou et al., 2007). Therefore, there is a need for detergents made from natural materials without using synthetic chemical components.

[0007] Accordingly, the inventors conducted research to solve the aforementioned problems and developed a natural compound that has excellent cleaning power and a metal ion blocking effect, thereby completing the present invention. The problem to be solved

[0008] One aspect provides a detergent composition comprising water, coconut oil, and sodium hydroxide.

[0009] Another aspect is to provide a method for manufacturing the above detergent composition. means of solving the problem

[0010] One aspect provides a detergent composition comprising water, coconut oil, and sodium hydroxide.

[0011] In one embodiment, the detergent composition may further include one or more selected from the group consisting of rice bran oil, citric acid, cyclodextrin, sodium gluconate, lemon oil, and Centella asiatica extract.

[0012] In one embodiment, the water may be included in an amount of 5 to 30 weight%, the coconut oil in an amount of 20 to 50 weight%, and the sodium hydroxide in an amount of 5 to 20 weight%. For example, the water may be included in an amount of 5 to 30 weight%, 5 to 25 weight%, 5 to 20 weight%, 10 to 30 weight%, or 10 to 20 weight%, the coconut oil may be included in an amount of 20 to 50 weight%, 20 to 45 weight%, 20 to 40 weight%, 25 to 50 weight%, 25 to 45 weight%, 25 to 40 weight%, 30 to 50 weight%, 30 to 45 weight%, or 30 to 40 weight%, and the sodium hydroxide may be included in an amount of 5 to 20 weight%, 5 to 15 weight%, 5 to 10 weight%, 10 to 20 weight%, or 10 to 15 weight%.

[0013] In one embodiment, the rice bran oil may be included in an amount of 1 to 10 weight%. For example, it may be included in an amount of 1 to 10 weight%, 1 to 8 weight%, 1 to 5 weight%, 3 to 10 weight%, 3 to 8 weight%, or 3 to 5 weight%.

[0014] In one embodiment, the citric acid may be included in an amount of 5 to 20 weight%. For example, it may be included in an amount of 5 to 20 weight%, 5 to 18 weight%, 5 to 15 weight%, 8 to 20 weight%, 8 to 18 weight%, 8 to 15 weight%, 10 to 20 weight%, 10 to 18 weight%, or 10 to 15 weight%.

[0015] In one embodiment, the cyclodextrin may be included in an amount of 1 to 10 weight%. For example, it may be included in an amount of 1 to 10 weight%, 1 to 8 weight%, 1 to 5 weight%, 3 to 10 weight%, 3 to 8 weight%, 3 to 5 weight%, 5 to 10 weight%, or 5 to 8 weight%.

[0016] In one embodiment, the sodium gluconate may be included in an amount of 5 to 15 weight%. For example, it may be included in an amount of 5 to 15 weight%, 5 to 13 weight%, 5 to 10 weight%, 8 to 15 weight%, 8 to 13 weight%, 8 to 10 weight%, 10 to 15 weight%, or 10 to 13 weight%.

[0017] In one embodiment, the lemon oil may be included in an amount of 1 to 5 weight%. For example, it may be included in an amount of 1 to 5 weight%, 1 to 4 weight%, 1 to 3 weight%, 1 to 2 weight%, 2 to 5 weight%, 2 to 4 weight%, or 2 to 3 weight%.

[0018] In one embodiment, the Centella asiatica extract may be included in an amount of 1 to 10 weight%. For example, it may be included in an amount of 1 to 10 weight%, 1 to 8 weight%, 1 to 5 weight%, 1 to 3 weight%, 3 to 10 weight%, 3 to 8 weight%, or 3 to 5 weight%.

[0019] Even if "about" is not written before a number in this specification, it is equivalent to having "about" written. The term "about" is a range that includes all of ±0.5, ±0.4, ±0.3, ±0.2, ±0.1, etc., and includes all numbers in a range equivalent to or similar to the number following the term "about," but is not limited thereto.

[0020] In one embodiment, the pH of the composition may be 7 to 9.

[0021] In one embodiment, the composition may not include a synthetic metal ion chelating agent and / or a surfactant. According to one embodiment, the detergent composition has an excellent metal ion chelating effect even without including a synthetic metal ion chelating agent and / or a surfactant.

[0022] In one embodiment, the composition may further comprise one or more selected from the group consisting of a bleaching agent, a bleaching activator, an organic polymer, an anti-reattachment agent, a foaming agent, an anti-color transfer agent, a thickening agent, an enzyme, a fragrance, and a mixture thereof.

[0023] The above bleaching agent may be selected from, for example, sodium percarbonate, sodium perborate monohydrate, sodium perborate tetrahydrate, calcium hypochlorite, dichloroisocyanurate, and chloramine.

[0024] The above bleaching activator may be selected from, for example, tetraacetylethylenediamine (TAED), sodium nonanoyloxybenzenesulfonate (NOBS), 3,5,5-trimethylhexanoylbenzenesulfonate sodium or isonanoyloxybenzenesulfonate sodium (NOBS), tetraacetylglycoluryl (TAGU), pentaacetylglucose (PAG) and diacetyldioxohexahydrotriazine (DADHT), and isatonic anhydride (ISA).

[0025] The above organic polymer may be selected from, for example, acrylic polymer, acrylic-maleic acid polymer, acrylic-maleic acid-vinyl polymer, polyamidocarboxylic acid, polyvinylpyrrolidone, cross-linked polyvinylpyrrolidone, and mixtures thereof.

[0026] The above anti-reattachment agent may be selected from, for example, sodium carboxymethyl cellulose, methyl cellulose, hydroxypropyl cellulose, polyethylene glycol, polyvinyl alcohol, aromatic and aliphatic dicarboxylic acid polyesters with ethylene glycol and / or propylene glycol, and mixtures thereof.

[0027] The above foaming agent may be selected from, for example, soap, paraffin, polydimethylsiloxane, and mixtures thereof.

[0028] The above anti-stain agent may be selected from, for example, homopolymers and copolymers of vinylpyrrolidone, vinylimidazole, vinyloxazolidone, 4-vinylpyridine-N-oxide and mixtures thereof.

[0029] The above-mentioned thickener may be selected from, for example, guar gum, ethyl cellulose, xanthan gum, carbomer, carrageenan, chitosan, hydroxyethyl cellulose, microcrystalline cellulose, high molecular weight solid polyethylene glycol, alginic acid, sodium alginate, calcium carboxymethyl cellulose, magnesium aluminum silicate, colloidal silicon dioxide, and mixtures thereof.

[0030] The above enzyme may be selected from protease, amylase, celloviase, cellulase, lipase, xyloganase, pectate degrading enzyme, mannanase, cutinase, oxygenases, catalase, lipolytic active enzyme, glycosyl hydrolase, enzyme activator, and mixtures thereof.

[0031] The above fragrance is not particularly limited and may be any commonly used in detergents, and consists of fragrance components, solvents, fragrance stabilizers, etc.

[0032] The above composition may further contain a preservative system, and the preservative system may be selected from benzoic acid, sodium benzoate, benzyl alcohol, sorbic acid or a salt thereof (e.g., potassium sorbate), parabens, dehydroacetic acid, bronopol, triclosan, imidazolidinyl urea, PHMB, phenoxyethanol, DMDMH, ethylhexylglycerin, isothiazolone, chlorhexidine, diazolidinyl urea, chlorphenesin, sodium hydroxymethylglycinate, benzethononium chloride, IPBC (iodopropynyl butylcarbamate), salicylic acid, organic acids, natural acids (citric acid, cinnamic acid, tartaric acid, maleic acid, oxalic acid, lactic acid, ascorbic acid, etc.), essential oils, and mixtures thereof.

[0033] In one embodiment, the composition may be in the form of a solid, powder, liquid, gel, suspension, or capsule.

[0035] Another aspect provides a method for preparing a detergent composition comprising the step of mixing water, coconut oil, and sodium hydroxide.

[0036] In one embodiment, the manufacturing method may further include the step of mixing one or more selected from the group consisting of rice bran oil, citric acid, cyclodextrin, sodium gluconate, lemon oil, and Centella asiatica extract.

[0037] The effects of each of the above components and compositions are as described above.

[0038] The following examples are intended as exemplary formulations for each end-user formulation that can be prepared according to the present invention. Effects of the invention

[0039] According to a detergent composition according to one aspect, unlike conventional synthetic detergents, it does not use synthetic chemical components such as metal ion chelating agents, so it does not cause environmental pollution, is harmless to the human body, is non-irritating to the skin, has low metal salt precipitation, and has excellent cleaning power. Brief explanation of the drawing

[0040] Figure 1 is a photograph confirming the metal ion blocking effect of a detergent composition according to one embodiment. Specific details for implementing the invention

[0041] The following examples will be explained in more detail. However, these examples are intended to illustrate one or more specific examples, and the scope of the present invention is not limited to these examples.

[0043] Example. Preparation of a detergent composition

[0044] A detergent composition was obtained by mixing 35% by weight of coconut oil, 20% by weight of purified water, 10% by weight of sodium hydroxide, 5% by weight of green tea extract, 5% by weight of rice bran oil, 10% by weight of citric acid, 5% by weight of cyclodextrin, 5% by weight of sodium gluconate, 2% by weight of lemon oil, and 3% by weight of Centella asiatica extract.

[0046] Comparative Examples 1 and 2. Detergent composition control group

[0047] Comparative Example 1 was a detergent composition comprising 10 wt% purified water, 17 wt% sodium hydroxide, 41 wt% coconut oil, 10 wt% argan oil, 10 wt% olive oil, 4 wt% brown sugar, 4 wt% refined salt, 1 wt% baking soda, 1 wt% oat powder, and 1 wt% tocopherol, to which 1 wt% of the chemical component metal ion chelating agent EDTA was added.

[0048] Comparative Example 2 was a solid soap (manufactured by Mama Forest Co., Ltd., product name Dish Bar (Angel Baby)) composed of 10% by weight of purified water, 17% by weight of sodium hydroxide, 41% by weight of coconut oil, 10% by weight of argan oil, 10% by weight of olive oil, 5% by weight of brown sugar, 5% by weight of refined salt, 1% by weight of baking soda, 1% by weight of oat powder, and 1% by weight of tocopherol.

[0050] Experimental Example. Confirmation of metal salts precipitated on the surface of the object to be washed

[0051] The detergent compositions of the above examples and Comparative Examples 1 and 2 were confirmed as follows to determine how effectively they could clean the metal salts of the object to be cleaned without leaving any residue.

[0052] Specifically, calcium nitrate [Ca(NO3)2·4H2O)] (Daejeong Chemical reagent grade) was used as the metal ion material. In addition, a microscope flat glass plate was used as the object to be washed, and secondary distilled water was used. After completely dissolving 0.01 wt% of each of the detergent compositions of the above Examples and Comparative Examples 1 and 2 in 50 mL of distilled water at room temperature—identical to the actual washing condition—a certain amount of calcium nitrate [Ca(NO3)2·4H2O)] was dissolved. Subsequently, the glass specimen was immersed and stirred while raising the temperature to 50°C, and then left for 1 hour.

[0053] As a result, it was confirmed that calcium ions were precipitated on the glass surface to be cleaned depending on the detergent composition, and that the degree varied depending on the detergent composition. Finally, the stains formed after completely drying the glass specimens in a 50°C dryer for 30 minutes were evaluated by visual comparison and are shown in Figure 1.

[0054] As shown in Figure 1, the detergent composition containing the natural combination of the example showed significantly fewer precipitated metal salts compared to the detergent composition of Comparative Example 1 containing EDTA and Comparative Example 2, which is a conventional product.

[0055] These results indicate that the natural combination according to one embodiment has a higher metal ion blocking effect than the chemical metal ion blocking agent.

Claims

Claim 1 20 wt% water; 35 wt% coconut oil; 10 wt% sodium hydroxide; 5 wt% rice bran oil; 10 wt% citric acid; 5 wt% cyclodextrin; 5 wt% sodium gluconate; 2 wt% lemon oil; 3 wt% Centella asiatica extract; and 5 wt% of A detergent composition comprising green tea extract, having a pH of 7 to 9, and not comprising synthetic metal ion chelating agents and synthetic surfactants. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 delete Claim 10 A detergent composition according to claim 1, wherein the composition has a metal ion blocking effect. Claim 11 delete Claim 12 delete Claim 13 A detergent composition according to claim 1, wherein the composition is in the form of a solid, liquid, gel, suspension, or powder. Claim 14 A method for preparing a detergent composition comprising the step of mixing 20 wt% water; 35 wt% coconut oil; 10 wt% sodium hydroxide; 5 wt% rice bran oil; 10 wt% citric acid; 5 wt% cyclodextrin; 5 wt% sodium gluconate; 2 wt% lemon oil; 3 wt% Centella asiatica extract; and 5 wt% green tea extract. Claim 15 delete

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