Environmentally friendly detergent composition and method for producing environmentally friendly detergent powder using the same

Abstract

The present invention discloses an environmentally friendly detergent composition that, despite not containing any surfactant, exhibits cleaning power equal to or superior to that of existing synthetic detergents containing petroleum-based surfactants, and a method for producing an environmentally friendly detergent powder using the same. The present invention proposes an environmentally friendly detergent composition that, despite not containing any bleaching agent, has excellent cleaning effect on dye stains and does not lose cleaning power against protein stains caused by bleaching agents.

Description

[Technical field]

[0001] The present invention relates to an environmentally friendly detergent composition and a method for producing an environmentally friendly detergent powder using the same. [Background technology]

[0002] Detergents generally refer to mixtures of substances used to remove contaminants attached to the surface of objects through complex physical and chemical actions such as adsorption, wetting, lowering interfacial tension, emulsification, solubilization, and dispersion, and the use of detergents is on the rise both domestically and overseas.

[0003] These detergents have been further developed, and various types of detergents are currently on the market, among which detergents with high detergency are widely used.

[0004] However, conventional detergents contain surfactants as their main raw materials, which are difficult to decompose by microorganisms, causing environmental pollution, and also increasing water consumption for rinsing foam, and causing skin damage due to residual detergent or contact with detergent.

[0005] As a result, detergents that contain natural surfactants or no surfactants have been developed, but they have the disadvantage of being inferior in washing performance compared to existing detergents.

[0006] Therefore, there is an increasing demand for environmentally friendly natural detergent compositions that do not cause environmental pollution and have a cleaning power comparable to that of existing synthetic detergents. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Korean Patent Publication No. 10-2007-0022437 (Published on February 27, 2007) Summary of the Invention [Problem to be solved by the invention]

[0008] The object of the present invention is to provide an environmentally friendly detergent composition which does not contain any surfactant and which exhibits cleaning power equal to or greater than that of existing synthetic detergents containing petroleum-based surfactants, and a method for producing an environmentally friendly detergent powder using the same.

[0009] A further object of the present invention is to provide an environmentally friendly detergent composition which does not contain a bleaching agent and has a cleaning power equal to or greater than that of a normal detergent containing a bleaching agent, and a method for producing an environmentally friendly detergent powder using the same.

[0010] Another object of the present invention is to provide an environmentally friendly detergent composition which does not contain any surfactant, is non-toxic to the skin, has excellent biodegradability, and also contributes to the improvement of water quality and reduction of water usage by saving rinsing water during laundry, and a method for producing an environmentally friendly detergent powder using the same.

[0011] The object of the present invention is not limited to the object mentioned above, and other objects and advantages of the present invention not mentioned can be understood from the following description and can be more clearly understood from the embodiments of the present invention. Also, it can be easily understood that the object and advantages of the present invention can be realized by the means and combinations thereof as set forth in the claims. [Means for solving the problem]

[0012] The environmentally friendly detergent composition according to the present invention and the method for producing an environmentally friendly detergent powder using the same not only contain no surfactant, are non-toxic to the skin, and have excellent biodegradability, but also save rinsing water during laundry, thereby contributing to the improvement of the water quality environment and reducing the amount of water used.

[0013] In addition, the environmentally friendly detergent composition and the method for producing environmentally friendly detergent powder using the same according to the present invention can significantly reduce the amount of water used compared to existing synthetic detergents containing petroleum-based surfactants, since no surfactant is added. In addition, since the detergent uses only natural substances without surfactants, water pollution can be prevented.

[0014] Furthermore, the environmentally friendly detergent composition according to the present invention and the method for producing an environmentally friendly detergent powder using the same can reduce the rinsing step of a washing machine, thereby achieving energy saving effects by reducing power consumption, and exhibiting superior deodorizing properties compared to existing synthetic detergents.

[0015] For this purpose, the environmentally friendly detergent composition according to the present invention comprises 30-70% by weight of a water-soluble glass composition, 1-20% by weight of sodium carbonate, 1-10% by weight of sodium percarbonate, 1-10% by weight of sodium bicarbonate, 1-10% by weight of an enzyme, 1-20% by weight of citric acid, 1-5% by weight of sodium chloride, 0.5-5% by weight of polyvinyl alcohol, 0.5-5% by weight of starch, and 0.5-5% by weight of wheat flour. Effect of the Invention

[0016] The environmentally friendly detergent composition according to the present invention and the method for producing an environmentally friendly detergent powder using the same exhibit excellent detergency equal to or greater than that of existing synthetic detergents containing petroleum-based surfactants, even though they do not contain any surfactants.

[0017] As a result, the environmentally friendly detergent composition according to the present invention and the method for producing an environmentally friendly detergent powder using the same have excellent washing effect on dye-based contaminants even though they do not contain bleach, and the cleaning power for protein contaminants is not reduced by the bleach.

[0018] In addition, the environmentally friendly detergent composition and the method for producing environmentally friendly detergent powder using the same according to the present invention can significantly reduce the amount of water used compared to existing synthetic detergents containing petroleum-based surfactants, since no surfactant is added. In addition, since the detergent uses only natural substances without surfactants, water pollution can be prevented.

[0019] Furthermore, the environmentally friendly detergent composition according to the present invention and the method for producing an environmentally friendly detergent powder using the same can reduce the rinsing step of a washing machine, thereby achieving energy saving effects by reducing power consumption, and exhibiting superior deodorizing properties compared to existing synthetic detergents.

[0020] The above-mentioned effects and specific effects of the present invention will be described in conjunction with the following description of the preferred embodiment of the invention. [Brief description of the drawings]

[0021] [Figure 1] 1 is a schematic diagram showing the washing mechanism of dirt using alkaline ions (OH-). [Diagram 2] FIG. 2 is a process flow diagram illustrating a method for producing an environmentally friendly detergent powder according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The above-mentioned objects, features and advantages will be described in detail below with reference to the accompanying drawings, so that those skilled in the art to which the present invention pertains can easily implement the technical concept of the present invention. In describing the present invention, if a detailed description of known techniques according to the present invention is deemed to obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings are used to indicate the same or similar components.

[0023] As used herein, singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "include" (comprise; constitute; construct; set; include; contain; contain) should not be interpreted as including all of the multiple components or multiple steps described in the specification, but should be interpreted as including some of the components or some steps that may not be included, or may further include additional components or steps.

[0024] Hereinafter, an environmentally friendly detergent composition according to an embodiment of the present invention and a method for producing an environmentally friendly detergent powder using the same will be described.

[0025] [Environmentally friendly detergent composition] The environmentally friendly detergent composition according to the embodiment of the present invention does not contain any surfactant and has a cleaning power equal to or greater than that of existing synthetic detergents containing petroleum-based surfactants.

[0026] Furthermore, the environmentally friendly detergent composition according to the embodiment of the present invention does not contain bleach and has cleaning power equal to or greater than that of a conventional detergent containing bleach.

[0027] In addition, the environmentally friendly detergent composition according to the embodiment of the present invention does not contain any surfactant, is non-toxic to the skin, and has excellent biodegradability. It also saves rinsing water during laundry, thereby contributing to the improvement of the water quality environment and reducing water usage.

[0028] As described above, the environmentally friendly detergent composition according to the embodiment of the present invention does not contain surfactants, which are the main components of existing synthetic detergents.

[0029] Generally, surfactants have very low biodegradability, and when they are discharged into rivers, they are difficult to decompose by microorganisms, and they generate foam on the surface of the river, cutting off the supply of oxygen from the air and hindering the river's natural purification activity. In addition, synthetic detergents containing surfactants generate a large amount of foam, which requires a large amount of rinsing water during washing, and therefore acts as a factor in increasing water usage.

[0030] In contrast, the environmentally friendly detergent composition according to the embodiment of the present invention has washing performance equal to or greater than that of existing synthetic detergents containing surfactants, and does not contain surfactants, so it does not cause water pollution, can significantly reduce water consumption, and does not cause skin damage due to skin contact.

[0031] To this end, an environmentally friendly detergent composition according to an embodiment of the present invention comprises 30-70% by weight of a water-soluble glass composition, 1-20% by weight of sodium carbonate, 1-10% by weight of sodium percarbonate, 1-10% by weight of sodium bicarbonate, 1-10% by weight of an enzyme, 1-20% by weight of citric acid, 1-5% by weight of sodium chloride, 0.5-5% by weight of polyvinyl alcohol, 0.5-5% by weight of starch, and 0.5-5% by weight of wheat flour.

[0032] Here, the water-soluble glass composition and the sodium carbonate may be added in a weight ratio of 2:1 to 7:1, and the water-soluble glass composition and the citric acid may be added in a weight ratio of 5:1 to 10:1.

[0033] Furthermore, the water-soluble glass composition is preferably an alkaline silicate glass.

[0034] More specifically, the alkaline silicate glass may contain 30 to 70 weight % SiO2, 1 to 10 weight % Al2O3, 5 to 30 weight % Na2O, 5 to 30 weight % K2O, 1 to 20 weight % MgO, and 1 to 20 weight % CaO.

[0035] Here, the enzyme may include one or more selected from the group consisting of proteolytic enzymes, lipolytic enzymes, carbohydrate decomposing enzymes, and cellulolytic enzymes, and the starch may include one or more selected from the group consisting of potato starch, corn starch, and sweet potato starch.

[0036] The above-described environmentally friendly detergent composition according to the embodiment of the present invention exhibits excellent detergency equal to or greater than that of existing synthetic detergents containing petroleum-based surfactants, even though it does not contain any surfactant.

[0037] As a result, the environmentally friendly detergent composition according to the embodiment of the present invention has excellent washing effect on dye-based stains even though it does not contain a bleaching agent, and the cleaning power of protein stains is not reduced by the bleaching agent.

[0038] In addition, since the environmentally friendly detergent composition according to the embodiment of the present invention does not contain any surfactant, it can significantly reduce the amount of water used compared to existing synthetic detergents containing petroleum-based surfactants. Furthermore, since the detergent is made of only natural substances without any surfactant, it can prevent water pollution.

[0039] Furthermore, the environmentally friendly detergent composition according to the embodiment of the present invention can reduce the number of rinsing steps in a washing machine, and can achieve energy saving effects by reducing power consumption, and has superior deodorizing properties compared to existing synthetic detergents.

[0040] Hereinafter, the role and content of each component of the environmentally friendly detergent composition according to the embodiment of the present invention will be described in detail.

[0041] Water-soluble glass composition Water-soluble glass compositions are a major component of environmentally friendly detergent compositions and play a role in improving laundry performance.

[0042] These water-soluble glass compositions are included in an amount of 30 to 70% by weight of the total weight of the environmentally friendly detergent composition according to the present invention.

[0043] When the water-soluble glass composition is added in an amount of less than 30% by weight, it is difficult to fully exert the effect of improving the washing and bleaching performance by the silicate ions, whereas when the water-soluble glass composition is added in an amount of more than 70% by weight, the cleaning power for dyes and proteins is improved, but the cleaning power for cocoa and proteins may decrease due to the relatively low enzyme content.

[0044] Here, it is preferable to use alkaline borosilicate glass as the water-soluble glass composition. More specifically, the alkaline borosilicate glass contains 50 to 85% by weight of B2O3, 1 to 15% by weight of SiO2, and a total of 5 to 50% by weight of Na2O and K2O.

[0045] Alkaline silicate glass is a glass material made by melting mineral components (Na+, K+, Ca2+, Mg2+) and silicate components (Si-O) that are easily found in nature at high temperatures. When the alkaline silicate glass is added to water, the material is easily dissolved and a large amount of Na + , K + , O.H. - , Si(OH)4 - The OH ions thus produced can be dissolved. - As the elution of ions increases, the pH of the wash water increases, making the wash water alkaline and decomposing dirt in the fibers.

[0046] Strong alkaline ingredients easily break down animal oils and proteins. Therefore, strong alkaline ingredients can dissolve dirt on the fabric, and the washing principle is no different from that of synthetic detergents. OH - The ions break down the dirt in the fibers, which is mainly insoluble substances (protein, sebum, etc.), into water-soluble substances and dissolve them in water. OH -The dissolution of ions makes the water alkaline. Generally, when water becomes alkaline, the interfacial tension of the water decreases and the zeta potential of the fibers and dirt increases, making it easier to remove dirt, preventing re-soiling, and maximizing the cleaning power.

[0047] Eluted OH - ion and Si(OH)4 - Ions are particularly effective in cleaning protein and lipid stains. Since 70-80% of the stains that occur in daily life contain protein components, cleaning performance for protein stains is a very important evaluation index for laundry performance. - An increase in pH increases the pH of the wash water, which causes the pH of the wash water to destabilize the proteins by moving away from the protein isoelectric point, which is roughly acidic (pH 4 to pH 6), and the eluted ions break down the proteins to remove the contaminants.

[0048] Referring to FIG. 1, the alkali ion (OH - The dirt washing mechanism by the ion exchange membrane is shown diagrammatically.

[0049] The alkaline silicate can be produced in various forms, such as a liquid form dissolved in an aqueous solution, a powder form obtained by pulverizing bulk glass, and a tablet form.

[0050] Sodium carbonate and sodium bicarbonate (baking soda) Sodium carbonate and sodium bicarbonate dissolve in water and produce alkali ions / hydroxyl ions (OH - ) which increases the pH of the solution and penetrates deeper into contaminants, not only improving cleaning power but also acting as a disinfectant and bleaching agent.

[0051] The sodium carbonate is included in an amount of 1 to 20 wt % of the total weight of the environmentally friendly detergent composition according to the present invention, and the sodium bicarbonate is included in an amount of 1 to 10 wt % of the total weight of the environmentally friendly detergent composition according to the present invention.

[0052] When the sodium carbonate and sodium bicarbonate are added in amounts less than the minimum amount, the disinfecting and bleaching effects may not be fully achieved. On the other hand, when the sodium carbonate and sodium bicarbonate are added in amounts exceeding the maximum amount, the OH - High concentrations of ions can cause discoloration of pigment components.

[0053] Sodium chloride (salt) Sodium chloride is a natural food that plays a role in preventing decay (preservative), poisoning, sterilization, odor removal, antifreeze, and skin protection, but is particularly used as a natural dehumidifier and to prevent caking in powder detergents, which are sensitive to moisture.

[0054] Sodium chloride is added in an amount of 1 to 5% by weight based on the total weight of the environmentally friendly detergent composition according to the present invention. If sodium chloride is added in an amount less than 1% by weight, it may be difficult to satisfactorily exhibit the function of an anti-caking agent. On the other hand, if sodium chloride is added in an amount exceeding 5% by weight, the effect does not increase any more and it may only increase the production cost, which is not economical.

[0055] enzyme Enzymes are effective in removing oxidation stains such as adherent proteins. These enzymes include one or more selected from proteases, lipases, cellulases, and amylases.

[0056] Table 1 summarizes the functions of each enzyme.

[0057] [Table 1]

[0058] As shown in Table 1, protease is effective in removing oxidized stains such as fixed proteins, and lipase is effective in decomposing and removing fat components. Furthermore, amylase is effective in decomposing and removing starch-based components, and cellulase is effective in arranging the surface of fibers. These enzymes are added in a content ratio of 1 to 10% by weight based on the total weight of the environmentally friendly detergent composition according to the present invention. If the amount of enzyme added is less than 1% by weight, it may be difficult to remove oxidized stains such as fixed proteins. On the other hand, if the amount of enzyme added is more than 10% by weight, the cleaning power for cocoa and proteins is improved, but the cleaning power for pigments and proteins may be reduced due to the relatively low content of the water-soluble glass composition.

[0059] starch Starch has a regular micelle structure due to strong bonds between the molecules. When water is added to this starch and heated, the water molecules penetrate into the micelle structure, the distance between the starch particles gradually increases, the starch particles expand, and the micelle structure breaks down, causing gelatinization. That is, the expansion of the starch increases the surface area that can come into contact with pollutants, improving the cleaning power of the detergent. For this reason, starch is preferably added in an amount of 0.5 to 5% by weight of the total weight of the environmentally friendly detergent composition according to the present invention.

[0060] flour Although wheat flour is not a surfactant that has both lipophilic and hydrophilic groups, it has cleaning ability through an adsorption process due to its porous nature. That is, the starch and protein in wheat flour act as lipophilic groups, which are a type of hydrocarbon substance, making it easier for the adsorbed oil to stick to the flour, resulting in more effective cleaning.

[0061] For this purpose, wheat flour is preferably added in an amount of 0.5 to 5% by weight based on the total weight of the environmentally friendly detergent composition according to the present invention.

[0062] In particular, the environmentally friendly detergent composition according to the embodiment of the present invention uses starch and wheat flour simultaneously, and as a result, the contact area with contaminants, such as oil stains, increases due to the expansion of starch, and the porous nature of wheat flour adsorbs oil, thereby significantly improving detergency compared to when only wheat flour or starch is used.

[0063] Polyvinyl alcohol Polyvinyl alcohol is a shaping agent that helps the detergent maintain its shape, and is added to prevent changes in the state of glass, which is weak in water resistance.

[0064] The polyvinyl alcohol is preferably added in an amount of 0.5-5% by weight based on the total weight of the environmentally friendly detergent composition according to the present invention. If the polyvinyl alcohol is added in an amount of less than 0.5% by weight, the amount is too small and it is difficult to satisfactorily exert the function as a shaping agent. On the other hand, if the polyvinyl alcohol is added in an amount of more than 5% by weight, it has no further effect and may only increase the production cost, which is not economical.

[0065] Sodium percarbonate Sodium percarbonate is added to the composition of the present invention to aid in bleaching washing. When sodium percarbonate comes into contact with water, it generates hydrogen peroxide and active oxygen. As a result, sodium percarbonate increases bleaching performance and cleaning power. Hydrogen peroxide is converted into an active intermediate hydrogen peroxide anion by an alkaline medium. The oxygen free radical anion (perhydroxyl anion) generated at this time oxidizes and removes bleach stains and stains. Generally, bleaching agents are used to remove stains such as dyes that are strongly attached to fibers, but the active oxygen generated from sodium percarbonate oxidizes the double bonds of the dyes, causing them to lose their color. For this reason, the composition of the present invention contains 1 to 10% by weight of the sodium percarbonate.

[0066] Citric acid Citric acid, which is weakly acidic, is a pH regulator that adjusts the overall pH of the detergent, and dissolves in water to maintain the detergent composition of the present invention at a weak alkaline pH (pH 8 to 11). In addition, the citric acid removes or neutralizes detergent that may remain after washing, and also acts as a fabric softener. For this reason, the detergent composition of the present invention contains 1 to 20% by weight of the citric acid.

[0067] As described above, the water-soluble glass composition and the sodium carbonate are preferably added in a weight ratio of 2:1 to 7:1, and the water-soluble glass composition and the citric acid are preferably added in a weight ratio of 5:1 to 10:1.

[0068] [Method for producing environmentally friendly detergent composition] Hereinafter, a method for producing an environmentally friendly detergent powder according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0069] FIG. 2 is a process flow diagram illustrating a method for producing an environmentally friendly detergent powder according to an embodiment of the present invention.

[0070] As shown in FIG. 2, the method for producing an eco-friendly detergent powder according to an embodiment of the present invention includes a mixing step (S110), a melting step (S120), a cooling step (S130), and a grinding step (S140).

[0071] mixture In the mixing step (S110), the water-soluble glass composition is mixed and stirred to form a detergent composition. The water-soluble glass composition is as described above.

[0072] Melting In the melting step (S120), the detergent composition is melted.

[0073] In this stage, melting is preferably carried out at 900 to 1,400°C for 1 to 60 minutes. If the melting temperature is less than 900°C or the melting time is less than 1 minute, the water-soluble glass composition is not completely melted, which may cause immiscibility of the glass melt. On the other hand, if the melting temperature exceeds 1,400°C or the melting time exceeds 60 minutes, excessive energy and time are required, which is not economical.

[0074] cooling In the cooling step (S130), the molten detergent composition is cooled to room temperature.

[0075] In this stage, the cooling is preferably performed in a furnace cooling manner, since if air cooling or water cooling is applied, excessive internal stress may be formed, which may cause cracks in some cases, and therefore the cooling is preferably performed in a furnace.

[0076] Crushing In the crushing step (S140), the cooled detergent solid is crushed, preferably using a dry crusher.

[0077] These grinding processes produce finely divided detergent solids to produce environmentally friendly detergent powders, which may have an average diameter of 30 μm or less, but are not limited thereto.

[0078] Thus, the method for producing an environmentally friendly detergent powder according to the embodiment of the present invention can be completed.

[0079] [Example] The present invention will be described in more detail with reference to the following preferred examples, which are presented as preferred examples of the present invention and are not to be construed as limiting the present invention in any sense.

[0080] Contents not described here will not be explained since those skilled in the art can easily deduce them from a technical standpoint.

[0081] 1. Preparation of environmentally friendly detergent powder samples Table 2 shows the components and the ratio of the components for the environmentally friendly detergent compositions according to Examples 1 to 5. The environmentally friendly detergent compositions having the compositions shown in Table 3 were melted in an electric furnace at a temperature of 1,000°C, and then cooled to a glass bulk state on a stainless steel plate by air cooling to obtain a cullet-like detergent solid. The detergent solid was then crushed in a dry crusher (ball mill) and passed through a 400 mesh sieve to produce an environmentally friendly detergent powder. Here, the water-soluble glass composition used was one having a composition of 70 wt% B2O3, 8 wt% SiO2, 10 wt% Na2O, and 12 wt% K2O.

[0082] [Table 2]

[0083] 2. Measurement of cleaning power How to evaluate cleaning power Detergency is the most basic function of a detergent and refers to the degree to which the detergent can remove dirt (contamination or grime) from clothes. In order to evaluate the cleaning power of a laundry detergent, it is common to use soiled cloth that has been artificially soiled with dirt commonly found in real life. In this cleaning power test, detergent was added in the recommended amount indicated on the product for a laundry load of 3 kg, and cleaning power was evaluated using various artificially soiled cloths as shown below.

[0084] Contaminated cloth used: Wet artificially contaminated cloth (JISC 9606) The contaminated cloth in question is the standard artificially contaminated cloth adopted in the washing machine performance test of the Japanese Industrial Standards Electric Washing Machine Standard (JISC 9606), and can represent the complex dirt mixed with various kinds of substances that accumulate in daily life. The composition of each contamination source is as follows.

[0085] Name of contaminated fabric: (JISC 9606) Material: Face Contaminants: oil, protein, etc. (mud, carbon black)

[0086] The cleaning power was evaluated using an LG 21kg drum washing machine. The washing performance was evaluated by measuring the surface reflectance of four points on the front and back of the test cloth (original cloth, washed cloth, soiled cloth) at 520nm using a spectrophotometer (Minolta, CT-400) with a light source of D65 and an average whiteness value, and then comparing the cleaning power according to the following formula.

[0087] Table 3 shows the measurement results of the detergency for the samples according to Examples 1 to 5 and Comparative Examples 1 to 3. Here, the samples according to Comparative Examples 1 to 3 were three commercially available regular detergents.

[0088] [Table 3]

[0089] As can be seen from the cleaning power results in the above table, the eco-friendly detergent of the present invention showed superior cleaning power compared to normal detergents, even though it does not contain a surfactant. In addition to its cleaning power against complex dirt containing oil, protein, and particulate dirt, the eco-friendly detergent of the present invention can increase or decrease its cleaning power against specific dirt depending on its composition. Based on the above experimental results, it was proven that in the case of the eco-friendly detergent powder samples, it is possible to develop a detergent specialized for specific dirt by controlling each component and the ratio of these components.

[0090] 3. Skin irritation and toxicity tests (1) Skin irritation test In order to evaluate the environmentally friendly properties of the detergent composition according to the present invention, a skin irritation test was carried out at the Korea Clothing Testing and Research Institute using a skin patch test method as follows.

[0091] Test Method 1) Preparation of test specimen: After diluting the test sample to the standard usage ratio, soak a standard cotton cloth (ISO 105-F02) in it before use. 2) Twenty healthy adults were asked to attach the test strip directly to the forearm for 24 hours. 3) After removing the attached cloth, visually inspect the area and if there is no obvious change, make a skin replica of the patch site. 4) The skin replica is observed under a microscope, and the degree of minute irritation is judged according to the criteria into four levels: negative, semi-negative, semi-positive, or positive.

[0092] Test results As a result of the skin irritation test, all of the above Examples 1 to 5 were judged to be negative (the lowest irritation standard), proving the environmentally friendly nature of the detergent according to the present invention.

[0093] (2) Toxicity assessment In order to evaluate the toxicity of the detergent composition according to the present invention, an acute oral toxicity test and an acute fish toxicity test (ETF-20057) were conducted at the Korea Biostability Institute. The oral acute toxicity test was conducted by administering a certain amount of detergent to rats for 14 days, and all of the examples of the present invention received a GHS classification of grade 5 (the lowest toxicity).

[0094] The fish acute toxicity test is a test for evaluating the toxicity of detergents using medaka fish, and all of the examples of the present invention were rated as the lowest.

[0095] From the above results, it can be determined that the environmentally friendly detergent composition according to the present invention has low toxicity.

[0096] Although the present invention has been described above with reference to the illustrative drawings, the present invention is not limited to the embodiments and drawings disclosed in this specification, and it is clear that various modifications can be made by those skilled in the art within the scope of the technical concept of the present invention. Furthermore, even if the effects of the configuration of the present invention are not explicitly described and explained while describing the embodiments of the present invention, it is natural that the effects that can be predicted by the configuration should also be recognized.

[0097] [Claims at the time of international application] [Claim 1] 1. An (environmentally friendly) detergent composition comprising: 30 to 70% by weight of a water-soluble glass composition; 1-20% by weight of sodium carbonate; 1-10% by weight of sodium percarbonate; 1-10% by weight of sodium bicarbonate; 1-10% by weight of enzyme; 1-20% by weight of citric acid; 1-5% by weight of sodium chloride; 0.5-5% by weight of polyvinyl alcohol; 0.5 to 5% by weight of starch; and An (environmentally friendly) detergent composition comprising: 0.5 to 5% by weight of wheat flour. [Claim 2] 2. The (environmentally friendly) detergent composition according to claim 1, wherein the water-soluble glass composition and the sodium carbonate are added in a weight ratio of 2:1 to 7:1. [Claim 3] 2. The (environmentally friendly) detergent composition according to claim 1, wherein the water-soluble glass composition and the citric acid are added in a weight ratio of 5:1 to 10:1. [Claim 4] 2. The (environmentally friendly) detergent composition of claim 1, wherein the water-soluble glass composition is an alkaline silicate glass. [Claim 5] The alkaline silicate glass contains, based on 100% by weight of the alkaline silicate glass, SiO2 30-70 wt%; 1-10 wt% Al2O3; Na2O 5-30 wt%; 5-30% by weight of K2O; 1 to 20% by weight of MgO; and 5. The (environmentally friendly) detergent composition according to claim 4, comprising 1 to 20% by weight of CaO. [Claim 6] 2. The (environmentally friendly) detergent composition according to claim 1, wherein the enzymes comprise one or more selected from the group consisting of proteolytic enzymes, lipolytic enzymes, carbohydrate-degrading enzymes and cellulolytic enzymes. [Claim 7] 2. The (environmentally friendly) detergent composition according to claim 1, wherein the starch comprises one or more selected from the group consisting of potato starch, corn starch and sweet potato starch. [Claim 8] A method for producing an (environmentally friendly) detergent powder comprising the steps of: (a) 30 to 70 weight percent of a water-soluble glass composition; 1-20% by weight of sodium carbonate; 1-10% by weight of sodium percarbonate; 1-10% by weight of sodium bicarbonate; 1-10% by weight of enzyme; 1-20% by weight of citric acid; 1-5% by weight of sodium chloride; 0.5-5% by weight of polyvinyl alcohol; 0.5 to 5% by weight of starch; and 0.5 to 5% by weight of wheat flour; mixing and stirring to form a detergent composition; (b) melting the detergent composition; (c) cooling the molten detergent composition; and (d) grinding the cooled detergent solids. [Claim 9] 9. The method for producing an (environmentally friendly) detergent powder according to claim 8, wherein in step (a), the water-soluble glass composition and the sodium carbonate are added in a weight ratio of 2:1 to 7:1. [Claim 10] 9. The method for producing an (environmentally friendly) detergent powder according to claim 8, wherein in step (a), the water-soluble glass composition and the citric acid are added in a weight ratio of 5:1 to 10:1. [Claim 11] 9. The method for producing an (environmentally friendly) detergent powder according to claim 8, wherein in step (a), the water-soluble glass composition is an alkaline silicate glass. [Claim 12] The alkaline silicate glass contains, based on 100% by weight of the alkaline silicate glass, SiO2 30-70 wt%; 1-10 wt% Al2O3; Na2O 5-30 wt%; 5-30% by weight of K2O; 1-15 wt% SiO2; 1 to 20% by weight of MgO; and 12. A method for producing an (environmentally friendly) detergent powder according to claim 11, comprising: 1 to 20% by weight of CaO. [Claim 13] 9. The method for producing an (environmentally friendly) detergent powder according to claim 8, wherein in step (a), the enzyme comprises one or more enzymes selected from the group consisting of protease, lipolytic enzyme, carbohydrate degrading enzyme, and cellulolytic enzyme. [Claim 14] 9. The method for producing an (environmentally friendly) detergent powder according to claim 8, wherein in step (a), the starch comprises one or more selected from the group consisting of potato starch, corn starch, and sweet potato starch.

Claims

1. 1. An environmentally friendly detergent composition comprising: 30 to 70% by weight of a water-soluble glass composition; 1-20% by weight of sodium carbonate; 1-10% by weight of sodium percarbonate; 1-10% by weight of sodium bicarbonate; 1-10% by weight of enzyme; 1-20% by weight of citric acid; 1-5% by weight of sodium chloride; 0.5 to 5% by weight of polyvinyl alcohol; 0.5 to 5% by weight starch; and An environmentally friendly detergent composition comprising: 0.5 to 5% by weight of wheat flour.

2. 2. The environmentally friendly detergent composition of claim 1, wherein the water-soluble glass composition and the sodium carbonate are added in a weight ratio of 2:1 to 7:

1.

3. 2. The environmentally friendly detergent composition of claim 1, wherein the water-soluble glass composition and the citric acid are added in a weight ratio of 5:1 to 10:

1.

4. 10. The environmentally friendly detergent composition of claim 1, wherein the water-soluble glass composition is an alkaline silicate glass.

5. The alkaline silicate glass contains, based on 100% by weight of the alkaline silicate glass, SiO ２ 30 to 70% by weight; A ２ O ３ 1 to 10% by weight; Na ２ 5 to 30% by weight of O; K ２ 5 to 30% by weight of O; 1 to 20 wt. % MgO; and 5. The environmentally friendly detergent composition of claim 4, comprising: 1-20% by weight of CaO.

6. 2. The environmentally friendly detergent composition of claim 1, wherein the enzyme comprises one or more selected from the group consisting of proteolytic enzymes, lipolytic enzymes, carbohydrate degrading enzymes, and cellulolytic enzymes.

7. 2. The environmentally friendly detergent composition of claim 1, wherein the starch comprises one or more selected from the group consisting of potato starch, corn starch, and sweet potato starch.

8. A method for producing an environmentally friendly detergent powder, comprising: (a) 30 to 70 weight percent of a water-soluble glass composition; 1-20% by weight of sodium carbonate; 1-10% by weight of sodium percarbonate; 1-10% by weight of sodium bicarbonate; 1-10% by weight of enzyme; 1-20% by weight of citric acid; 1-5% by weight of sodium chloride; 0.5 to 5% by weight of polyvinyl alcohol; 0.5 to 5% by weight starch; and 0.5 to 5% by weight of wheat flour; combining and stirring to form a detergent composition; (b) melting the detergent composition; (c) cooling the molten detergent composition; and (d) grinding the cooled detergent solids.

9. 9. The method of claim 8, wherein in step (a), the water-soluble glass composition and the sodium carbonate are added in a weight ratio of 2:1 to 7:

1.

10. 9. The method of claim 8, wherein in step (a), the water-soluble glass composition and the citric acid are added in a weight ratio of 5:1 to 10:

1.

11. 9. The method of claim 8, wherein in step (a), the water-soluble glass composition is an alkaline silicate glass.

12. The alkaline silicate glass contains, based on 100% by weight of the alkaline silicate glass, SiO ２ 30 to 70% by weight; A ２ O ３ 1 to 10% by weight; Na ２ 5 to 30% by weight of O; K ２ 5 to 30% by weight of O; SiO ２ 1 to 15% by weight; 1 to 20 wt. % MgO; and A method for producing an environmentally friendly detergent powder according to claim 11, comprising: 1-20% by weight of CaO.

13. 9. The method of claim 8, wherein in step (a), the enzyme comprises at least one enzyme selected from the group consisting of protease, lipolytic enzyme, carbohydrate decomposing enzyme, and cellulolytic enzyme.

14. 9. The method of claim 8, wherein in step (a), the starch comprises at least one selected from the group consisting of potato starch, corn starch, and sweet potato starch.

Images