Cleaning agent as well as preparation method and application thereof

Abstract

The invention relates to a cleaning agent as well as a preparation method and application thereof. The cleaning agent comprises the following raw material components in percentage by mass: 0.1-0.2% of a chelating agent; 0.6-1% of an ampholytic surfactant; 0.6 to 1% of a nonionic surfactant; 5.9%-8.5% of an anionic surfactant; 0.4-1% of sodium hydroxide; 2-4% of sulfonic acid; and 85-87% of water. According to the cleaning agent provided by the invention, the ampholytic surfactant, the nonionic surfactant, the anionic surfactant and sulfonate prepared from sulfonic acid and sodium hydroxide in situ are compounded, so that the technical problems that a cleaning agent in the prior art cannot effectively remove heavy oil stains and the surface of a base material is damaged due to strong alkalinity are solved. The cleaning agent does not need to disassemble and soak electric appliances such as range hoods and ovens, can quickly and effectively remove heavy oil stains on the surfaces of the electric appliances only by being sprayed on the surfaces, and is non-corrosive to base materials, low in skin irritation, safer and more environment-friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning agents, and in particular to a cleaning agent and a preparation method and application thereof. Background Art

[0002] During the cooking process, the edible oil and fat in the food are directly vaporized under long-term high-temperature heating conditions, and part of them undergo oxidation and polymerization reactions. After condensation, they adhere to the surfaces of objects such as range hoods, gas stoves, walls, doors and windows, and then absorb dust, fibers and other substances in the air, forming sticky kitchen dirt. These dirts are often accompanied by odors, are easy to breed bacteria, and are difficult to clean. In addition, with the continuous improvement of people's living standards, people's cooking methods are diversified. The popularity of microwave ovens and ovens has also allowed people who love cooking to learn new cooking methods such as baking. Baking generally uses molds of various shapes, baking trays, baking nets, and ovens. After repeated baking, these baking trays or baking nets will produce thick oil or dirt that is very difficult to clean.

[0003] The grease cleaning agents in the prior art are mainly kitchen cleaning agents containing various surfactants, such as CN106350244A and JPH10204480A. The grease cleaning agents rely on the wetting, penetration and emulsification effects of the surfactants to emulsify and disperse the grease into fine particles, and then wipe the dirt off to achieve the purpose of degreasing. The advantages are high decontamination rate, low toxicity, low irritation, and low price. The surfactants will not corrode metals, but the ability to remove old and viscous grease is poor, and long-term soaking is required. It is not suitable for electrical appliances that are difficult to disassemble and clean, such as range hoods, which have complicated cleaning steps.

[0004] Traditional heavy oil cleaning agents mostly use strong alkali degreasing methods, such as CN103740519A, which have good degreasing ability only under relatively high alkaline conditions. Some also contain a large amount of organic solvents such as CN118562563A, which are highly corrosive and irritating to the skin while easily causing damage to the substrate. They are not suitable for descaling heavy oil stains in appliances such as microwave ovens, ovens, and range hoods.

[0005] Therefore, developing a cleaning agent that can achieve excellent heavy oil descaling effect and has low corrosiveness is an urgent problem to be solved in the art. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a cleaning agent and a preparation method and application thereof. Through the design and compounding of each component, the problems that traditional surfactant cleaning agents have poor removal ability for old viscous oil stains, require long-term soaking, and are not suitable for electrical appliances that are difficult to disassemble and clean, such as range hoods, with complicated cleaning steps, and that heavy oil cleaning agents use a strong alkali degreasing method, which is highly corrosive and can easily cause damage to the substrate are solved. The cleaning agent has excellent heavy oil stain removal effect, and at the same time has low corrosiveness and will not cause damage to the substrate.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0009]

[0010] The present invention solves the technical problem that the cleaning agent in the prior art cannot effectively remove heavy oil stains and the strong alkalinity damages the surface of the substrate by compounding amphoteric surfactants, anionic surfactants, nonionic surfactants and sulfonates. The present invention does not need to disassemble and soak the range hood and oven energy appliances, and can quickly and effectively remove the heavy oil stains on the surface by spraying on the surface, and is non-corrosive to the substrate, low in skin irritation, and safer and more environmentally friendly.

[0011] Wherein, the chelating agent can be 0.1%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19% or 0.2%, as well as specific point values ​​between the above point values. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the said range.

[0012] Wherein, the amphoteric surfactant may be 0.6%, 0.7%, 0.8%, 0.9% or 1%, as well as specific point values ​​between the above point values. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0013] Wherein, the nonionic surfactant can be 0.6%, 0.7%, 0.8%, 0.9% or 1%, as well as specific point values ​​between the above point values. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0014] Wherein, the anionic surfactant can be 5.9%, 6%, 6.2%, 6.4%, 6.8%, 7%, 7.2%, 7.4%, 7.6%, 7.8%, 8%, 8.2%, 8.4% or 8.5%, as well as specific point values ​​between the above point values. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the said range.

[0015] Wherein, the sodium hydroxide can be 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% or 1%, as well as specific point values ​​between the above point values. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0016] Wherein, the sulfonic acid may be 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3%, 3.2%, 3.4%, 3.6%, 3.8% or 4%, as well as specific values ​​between the above values. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively enumerates the specific values ​​included in the range.

[0017] The water content may be 85%, 85.5%, 86%, 86.5% or 87%, as well as specific values ​​between the above values. Due to limited space and for the sake of simplicity, the present invention will no longer exhaustively list the specific values ​​included in the range.

[0018] The following are preferred technical solutions of the present invention, but are not intended to limit the technical solutions provided by the present invention. Through the following preferred technical solutions, the objectives and beneficial effects of the present invention can be better achieved and realized.

[0019] Preferably, the chelating agent comprises ethylenediaminetetraacetic acid disodium salt and / or ethylenediaminetetraacetic acid tetrasodium salt.

[0020] In the present invention, disodium ethylenediaminetetraacetic acid and / or tetrasodium ethylenediaminetetraacetic acid are added as chelating agents to form complexes with metal ions, thereby increasing the solubility of metal ions in oil stains and softening hard water, thereby achieving more effective cleaning and improving the overall effect.

[0021] Preferably, the raw materials of the cleaning agent also include 0.1-0.2% of thickener in terms of mass percentage, for example, it can be 0.1%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19% or 0.2%.

[0022] Preferably, the thickener comprises any one of carboxymethyl cellulose, propylene glycol alginate, methyl cellulose, sodium starch phosphate or sodium carboxymethyl cellulose, or a combination of at least two thereof.

[0023] In the present invention, the viscosity, adhesion, water retention, foaming ability and foam stability of the cleaning agent are improved by adding a thickener, so that the cleaning agent can better play a role on the cleaning surface.

[0024] Preferably, the raw materials of the cleaning agent further include 1.5-2% sodium chloride in terms of mass percentage, for example, 1.5%, 1.6%, 1.7%, 1.8%, 1.9% or 2%.

[0025] Preferably, the raw materials of the cleaning agent also include 0.1-0.2% of a pH adjuster in terms of mass percentage, for example, 0.1%, 0.11%, 0.12%, 0.13%, 0.14%, 0.15%, 0.16%, 0.17%, 0.18%, 0.19% or 0.2%.

[0026] Preferably, the pH adjuster comprises an aqueous solution of citric acid.

[0027] Preferably, the mass concentration of the citric acid aqueous solution is 0.05-0.2wt%, for example, it can be 0.05wt%, 0.08wt%, 0.1wt%, 0.13wt%, 0.15wt%, 0.18wt% or 0.2wt%.

[0028] Preferably, the water is deionized water.

[0029] Preferably, the purity of the sodium hydroxide is ≥99%.

[0030] Preferably, the pH value of the cleaning agent is 5.5-6.5, for example, it may be pH=5.5, pH=5.7, pH=5.9, pH=6, pH=6.2, pH=6.4 or pH=6.5.

[0031] The pH value of the cleaning agent is controlled to be 5.5-6.5 in the present invention so that the system presents weak acidity, and the amphoteric surfactant is cationic in a weakly acidic environment, and can be compounded with anionic surfactants and nonionic surfactants, and the electrostatic interaction between the surfactant ions with opposite electrical properties and the interaction between their hydrophobic carbon chains, compared with a single surfactant, not only does not have the repulsion of the same charge, but increases the attraction between the opposite charges, which greatly promotes the association of two different charge ions, and is easier to form micelles in the solution, and is easier to adsorb on the surface (interface), thereby producing higher surface activity, and can effectively reduce the surface tension of the solution and reduce the critical micelle concentration. In the present invention, the amphoteric surfactant is used to be cationic in a weakly acidic environment instead of directly using a cationic surfactant, so as to avoid the precipitation phenomenon caused by improper mixing of cationic surfactants and anionic surfactants, and affect the compounding effect of the cleaning agent. In addition, the amphoteric surfactant has more excellent cleaning and emulsification properties than the cationic surfactant, and is non-corrosive, will not damage the substrate surface, and is more conducive to the removal of heavy oil pollution of electrical appliances.

[0032] Citric acid is used as a pH regulator in the present invention. Citric acid has little corrosion to metals and is a safe cleaning agent. Since citric acid does not contain Cl - Therefore, it will not cause stress corrosion of equipment and can also be used as a chelating agent to complex Fe 3+ Lemon can also dissolve iron oxide and copper oxide to form a lemon iron and copper complex, which has good clearing effect and can play a certain role in rust prevention on the surface of the substrate.

[0033] Preferably, the amphoteric surfactant includes any one of amine oxide, sodium lauryl aminopropionate or sodium myristoyl alanine, or a combination of at least two thereof, preferably amine oxide.

[0034] The preferred embodiment of the present invention uses amine oxide (OA) as an amphoteric surfactant. OA is easily soluble in water, and its aqueous solution is cationic under acidic conditions and nonionic under alkaline conditions. OA also has good thickening, antistatic, foaming, foam stability and detergency performance, low irritation, and can effectively reduce the irritation of anionic surfactants in detergents. It also has the characteristics of bactericidal, calcium soap dispersible, and easy biodegradation.

[0035] Preferably, the nonionic surfactant comprises any one of alkyl glucoside, isomeric alcohol polyoxyethylene ether or polyoxyethylene amide, or a combination of at least two thereof, preferably alkyl glucoside.

[0036] The preferred embodiment of the present invention adopts alkyl polyglycoside (APG) as non-ionic surfactant. APG can reduce the surface tension of aqueous solution, has strong wetting power, strong detergency, strong foaming property, strong compatibility, and is resistant to strong alkali, strong acid, hard water, and salt. It is non-irritating to the skin, biodegrades rapidly and thoroughly, is non-toxic and harmless, and can be compounded with other types of surfactants to achieve obvious synergistic effects.

[0037] Preferably, the anionic surfactant includes any one of dodecyl sulfate, α-olefin sulfonate, and fatty alcohol polyoxyethylene ether sulfate, or a combination of at least two thereof, preferably a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate, and sodium fatty alcohol polyoxyethylene ether sulfate.

[0038] Preferably, the purity of the sodium α-olefin sulfonate is greater than 92%.

[0039] The preferred embodiment of the present invention adopts a compound of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium polyoxyethylene fatty alcohol ether sulfate, wherein the sodium dodecyl sulfate (K12) is easily soluble in water, insensitive to alkali and hard water, can reduce the surface tension of the aqueous solution, has excellent decontamination, emulsification and excellent foaming ability, biodegradability>90%, and has good compatibility with other anionic surfactants and nonionic surfactants. The sodium α-olefin sulfonate (AOS), AOS is highly soluble in water, has excellent wettability, decontamination, foaming, emulsification performance, excellent foam stability, and has good biodegradability, is mild to the skin, and has good matching performance. The sodium polyoxyethylene fatty alcohol ether sulfate (AES) is used, AES can reduce the surface tension of the aqueous solution, has strong wetting power and strong penetration power, provides good dispersion, dissolution and cleaning effects, it can also stabilize the emulsification system, has excellent decontamination, emulsification and foaming performance, and is easily biodegradable and green.

[0040] Preferably, the mass ratio of the sodium dodecyl sulfate and the sodium α-olefin sulfonate is 1:(1.2-3.5):(10-24), wherein "1.2-3.5" can be 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3, 3.2, 3.4 or 3.5; "10-24" can be 10, 12, 14, 16, 18, 20, 22 or 24.

[0041] Preferably, the sulfonic acid includes any one of methanesulfonic acid, p-toluenesulfonic acid, o-cresolsulfonic acid, p-styrenesulfonic acid or dodecylbenzenesulfonic acid, or a combination of at least two thereof.

[0042] In the present invention, sulfonic acid and sodium hydroxide undergo a neutralization reaction, and the generated sodium sulfonate salt has good decontamination, wetting and emulsifying abilities.

[0043] In a second aspect, the present invention provides a method for preparing the cleaning agent according to the first aspect, the preparation method comprising the following steps:

[0044] The raw material components of the cleaning agent are mixed according to the formula amount to obtain the cleaning agent.

[0045] Preferably, the stirring speed of the mixing is 100-200 r / min, for example, it can be 100 r / min, 110 r / min, 120 r / min, 130 r / min, 140 r / min, 150 r / min, 160 r / min, 170 r / min, 180 r / min, 190 r / min or 200 r / min.

[0046] Preferably, the mixing time is 15-30 min, for example, 15 min, 17 min, 20 min, 22 min, 25 min, 27 min or 30 min.

[0047] Preferably, the mixed material further comprises any one of a thickener, sodium chloride, and a pH regulator, or a combination of at least two of them.

[0048] Preferably, the preparation method comprises the following steps:

[0049] A saturated sodium chloride solution is prepared, and a chelating agent, a thickener, an amphoteric surfactant, a nonionic surfactant, an anionic surfactant, a sulfonic acid, sodium hydroxide, a saturated sodium chloride solution and water are mixed to obtain a premixed solution, and the premixed solution is mixed with a pH regulator to obtain the cleaning agent.

[0050] Preferably, the premix solution has a pH of 6.5-7.5, for example, pH=6.5, pH=6.7, pH=6.9, pH=7, pH=7.2, pH=7.4 or pH=7.5.

[0051] In a third aspect, the present invention provides a use of the cleaning agent according to the first aspect in kitchen cleaning.

[0052] Compared with the prior art, the present invention has at least the following beneficial effects:

[0053] 1. The present invention compounds amphoteric surfactants, anionic surfactants, nonionic surfactants and sulfonates to solve the technical problem that the cleaning agents in the prior art cannot effectively remove heavy oil stains and damage the surface of the substrate. There is no need to disassemble and soak the range hood and oven energy appliances. The heavy oil stains on the surface can be removed by spraying them on the surface, and they are non-corrosive to the substrate.

[0054] 2. The present invention adds a nonionic surfactant and a low-irritation, low-toxic, biodegradable anionic surfactant, and does not require the addition of additional additives. The ingredients are simple, the raw materials are degradable, and the formula is safer and more environmentally friendly.

[0055] 3. The present invention further preferably uses a pH regulator that does not damage the substrate, and controls the pH value of the cleaning agent to 5.5-6.5 to make the system weakly acidic. The amphoteric surfactant is cationic in a weakly acidic environment and can be compounded with anionic surfactants and nonionic surfactants to produce higher surface activity, which can effectively reduce the surface tension of the solution and reduce the critical micelle concentration, so that the cleaning agent has more excellent cleaning ability.

[0056] 4. The present invention uses sulfonic acid and sodium hydroxide to react in situ to generate a neutralization reaction, and the generated sodium sulfonate has good cleaning, wetting and emulsifying abilities. Compared with directly using commercially available sulfonates, the sulfonates prepared in situ by the present invention have higher purity and lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a comparison of the cleaning effect of the cleaning agent provided in Example 1 before and after cleaning the range hood and oil net with heavy oil stains;

[0058] Figure 2 This is a comparison diagram of the cleaning agent provided in Example 1 before and after cleaning the heavy oil stain on the range hood bellows;

[0059] Figure 3 This is a comparison diagram of the cleaning effect of the cleaning agent provided in Example 1 before and after being used to clean heavy oil stains on the range hood fan wheel. DETAILED DESCRIPTION

[0060] For the convenience of understanding the present invention, the present invention lists the following embodiments. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0061] The sources of raw materials used in the following examples and comparative examples are as follows:

[0062] 1. Alkyl glycoside, APG0814, purchased from Yuanye Biotechnology;

[0063] 2. Sodium α-olefin sulfonate, sodium α-olefin sulfonate (C14-16), purchased from Shiteng Chemical;

[0064] 3. Sodium fatty alcohol polyoxyethylene ether sulfate, 6501CAB-35AEO-9, purchased from Shunxing Chemical; 4. Carboxymethyl cellulose, FVH6-1, purchased from Telida New Materials;

[0065] 5. Propylene glycol alginate, PGA 9005-37-2, purchased from Chengtian Fine Chemicals;

[0066] 6. Sodium starch phosphate, sodium hydroxypropyl starch phosphate, purchased from Chuangzhiyuan Biological;

[0067] 7. Sodium carboxymethyl cellulose, PAC-200, purchased from Telida New Materials;

[0068] 8. Methyl cellulose, food grade methyl cellulose, purchased from Zhonghong Biology.

[0069] Example 1

[0070] A cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0071] The chelating agent is disodium ethylenediaminetetraacetic acid.

[0072] The amphoteric surfactant is an amine oxide.

[0073] The nonionic surfactant is an alkyl polyglycoside.

[0074] The anionic surfactant is a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate, with a mass ratio of 1:3.3:19.3.

[0075] The sulfonic acid is dodecylbenzenesulfonic acid.

[0076] The thickener is carboxymethyl cellulose.

[0077] The pH adjuster is a 0.05 wt % citric acid aqueous solution.

[0078] The preparation method of the cleaning agent comprises the following steps:

[0079] Sodium chloride (36 g) was mixed with deionized water (100 g) and stirred to fully dissolve the sodium chloride to obtain a saturated sodium chloride solution.

[0080] Citric acid (0.05 g) was mixed with deionized water (99.95 g) and stirred to uniformly disperse the citric acid in the water to obtain a 0.05 wt % citric acid aqueous solution.

[0081] In deionized water (400.25 g), disodium ethylenediaminetetraacetic acid (0.5 g), sodium dodecyl sulfate (1.5 g), carboxymethyl cellulose (0.5 g), sodium hydroxide (2.35 g), dodecylbenzenesulfonic acid (19 g), sodium polyoxyethylene fatty alcohol sulfate (29 g), amine oxide (3 g), alkyl glycoside (3 g) and sodium α-olefin sulfonate (5 g) were mixed at a stirring speed of 100 r / min. After stirring for 5 minutes, saturated sodium chloride solution (34 g, containing 9 g of sodium chloride) was added under stirring, and stirring was continued for 5 minutes to obtain a premixed solution with a pH of 7.

[0082] The premixed solution was mixed with a 0.05 wt % citric acid aqueous solution (0.5 g), and the stirring was continued for 5 min to obtain a cleaning agent, and the pH value of the cleaning agent was 6.

[0083] Example 2

[0084] A cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0085]

[0086]

[0087] The chelating agent is ethylenediaminetetraacetic acid tetrasodium salt.

[0088] The amphoteric surfactant is an amine oxide.

[0089] The nonionic surfactant is an alkyl polyglycoside.

[0090] The anionic surfactant is a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate, with a mass ratio of 1:2:12.5.

[0091] The sulfonic acid is p-toluenesulfonic acid.

[0092] The thickener is propylene glycol alginate.

[0093] The pH adjuster is a 0.2 wt % citric acid aqueous solution.

[0094] The preparation method of the cleaning agent comprises the following steps:

[0095] The preparation method of saturated sodium chloride solution is the same as that in Example 1.

[0096] Citric acid (0.2 g) was mixed with deionized water (99.8 g), and stirred to uniformly disperse the citric acid in the water to obtain a 0.2 wt % citric acid aqueous solution.

[0097] In deionized water (399.9 g), tetrasodium ethylenediaminetetraacetic acid (0.97 g), sodium dodecyl sulfate (1.95 g), propylene glycol alginate (0.97 g), sodium hydroxide (3.4 g), p-toluenesulfonic acid (14.6 g), sodium polyoxyethylene fatty alcohol sulfate (24.3 g), amine oxide (3.9 g), alkyl glycoside (4.4 g) and sodium α-olefin sulfonate (3.9 g) were mixed at a stirring speed of 150 r / min. After stirring for 10 min, saturated sodium chloride solution (27.6 g, containing 7.3 g of sodium chloride) was added under stirring, and stirring was continued for 10 min to obtain a premixed solution with a pH of 7.5.

[0098] The premixed solution was mixed with a 0.2 wt % citric acid aqueous solution (0.58 g), and the stirring was continued for 10 min to obtain a cleaning agent, and the pH value of the cleaning agent was 5.5.

[0099] Example 3

[0100] A cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0101]

[0102] The chelating agent is disodium ethylenediaminetetraacetic acid.

[0103] The amphoteric surfactant is an amine oxide.

[0104] The nonionic surfactant is an alkyl polyglycoside.

[0105] The anionic surfactant is a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate, with a mass ratio of 1:2:11.6.

[0106] The sulfonic acid is p-styrenesulfonic acid.

[0107] The thickener is sodium starch phosphate.

[0108] The pH adjuster is a 0.15 wt % citric acid aqueous solution.

[0109] The preparation method of the cleaning agent comprises the following steps:

[0110] The preparation method of saturated sodium chloride solution is the same as that in Example 1.

[0111] Citric acid (0.15 g) was mixed with deionized water (99.85 g) and stirred to uniformly disperse the citric acid in the water to obtain a 0.15 wt % citric acid aqueous solution.

[0112] In deionized water (416.3 g), disodium ethylenediaminetetraacetic acid (0.78 g), sodium dodecyl sulfate (2.6 g), sodium starch phosphate (0.78 g), sodium hydroxide (3.1 g), p-styrene sulfonic acid (16 g), sodium polyoxyethylene fatty alcohol sulfate (30 g), amine oxide (5.18 g), alkyl glycoside (5.2 g) and sodium α-olefin sulfonate (5.2 g) were mixed at a stirring speed of 200 r / min. After stirring for 5 minutes, saturated sodium chloride solution (32 g, containing 8.5 g of sodium chloride) was added under stirring, and stirring was continued for 5 minutes to obtain a premixed solution with a pH of 7.5.

[0113] The premixed solution was mixed with a 0.15 wt % citric acid aqueous solution (0.52 g), and the stirring was continued for 5 min to obtain a cleaning agent, and the pH value of the cleaning agent was 5.5.

[0114] Example 4

[0115] A cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0116]

[0117]

[0118] The chelating agent is disodium ethylenediaminetetraacetic acid.

[0119] The amphoteric surfactant is an amine oxide.

[0120] The nonionic surfactant is an alkyl polyglycoside.

[0121] The anionic surfactant is a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate, with a mass ratio of 1:2.2:14.4.

[0122] The sulfonic acid is methanesulfonic acid.

[0123] The thickener is sodium carboxymethyl cellulose.

[0124] The preparation method of the cleaning agent comprises the following steps:

[0125] The preparation method of saturated sodium chloride solution is the same as that in Example 1.

[0126] In deionized water (435.6 g), at a stirring speed of 100 r / min, disodium ethylenediaminetetraacetic acid (0.71 g), sodium dodecyl sulfate (2.45 g), sodium carboxymethyl cellulose (0.71 g), sodium hydroxide (5.5 g), methanesulfonic acid (13.1 g), sodium polyoxyethylene fatty alcohol sulfate (35.4 g), amine oxide (4.4 g), alkyl glycoside (3.8 g) and sodium α-olefin sulfonate (5.45 g) were mixed. After stirring for 10 min, saturated sodium chloride solution (37.8 g, containing 10 g of sodium chloride) was added under stirring, and stirring was continued for 10 min to obtain a cleaning agent with a pH of 6.5.

[0127] Example 5

[0128] A cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0129]

[0130]

[0131] The chelating agent is disodium ethylenediaminetetraacetic acid.

[0132] The amphoteric surfactant is an amine oxide.

[0133] The nonionic surfactant is an alkyl polyglycoside.

[0134] The anionic surfactant is a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate, with a mass ratio of 1:2:23.3.

[0135] The sulfonic acid is dodecylbenzenesulfonic acid.

[0136] The thickener is methyl cellulose.

[0137] The pH adjuster is a 0.05 wt % citric acid aqueous solution.

[0138] The preparation method of the cleaning agent comprises the following steps:

[0139] The preparation method of saturated sodium chloride solution is the same as that in Example 1.

[0140] The preparation method of 0.05 wt % citric acid aqueous solution is the same as that in Example 1.

[0141] In deionized water (416 g), disodium ethylenediaminetetraacetic acid (0.51 g), sodium dodecyl sulfate (1.5 g), methyl cellulose (0.51 g), sodium hydroxide (2.2 g), dodecylbenzene sulfonic acid (18 g), sodium polyoxyethylene fatty alcohol sulfate (36 g), amine oxide (3.4 g), alkyl glycoside (3.4 g) and sodium α-olefin sulfonate (3.1 g) were mixed at a stirring speed of 200 r / min. After stirring for 10 min, saturated sodium chloride solution (29.1 g, containing 7.7 g of sodium chloride) was added under stirring, and stirring was continued for 10 min to obtain a premixed solution with a pH of 7.

[0142] The premixed solution was mixed with a 0.05 wt % citric acid aqueous solution (0.77 g), and the stirring was continued for 10 min to obtain a cleaning agent, and the pH value of the cleaning agent was 6.

[0143] Example 6

[0144] A cleaning agent, wherein the raw materials of the cleaning agent include the following components by mass percentage:

[0145]

[0146] The chelating agent is disodium ethylenediaminetetraacetic acid.

[0147] The amphoteric surfactant is an amine oxide.

[0148] The nonionic surfactant is an alkyl polyglycoside.

[0149] The anionic surfactant is a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate, with a mass ratio of 1:1.75:13.

[0150] The sulfonic acid is dodecylbenzenesulfonic acid.

[0151] The thickener is carboxymethyl cellulose.

[0152] The preparation method of the cleaning agent comprises the following steps:

[0153] The preparation method of saturated sodium chloride solution is the same as that in Example 1.

[0154] In deionized water (402.6 g), disodium ethylenediaminetetraacetic acid (1 g), sodium dodecyl sulfate (2 g), carboxymethyl cellulose (1 g), sodium hydroxide (3.9 g), dodecylbenzenesulfonic acid (17.5 g), sodium polyoxyethylene fatty alcohol sulfate (26 g), amine oxide (3.5 g), alkyl glycoside (5 g) and sodium α-olefin sulfonate (3.5 g) were mixed at a stirring speed of 200 r / min. After stirring for 15 min, saturated sodium chloride solution (34 g, containing 9 g of sodium chloride) was added under stirring, and stirring was continued for 15 min to obtain a cleaning agent with a pH value of >8.

[0155] Example 7

[0156] A cleaning agent, which is different from Example 1 only in that the anionic surfactant does not contain sodium lauryl sulfate, and the mass ratio of sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate is 3.3:19.3.

[0157] Example 8

[0158] A cleaning agent, which is different from Example 1 only in that the anionic surfactant does not contain sodium α-olefin sulfonate, and the mass ratio of sodium dodecyl sulfate to sodium fatty alcohol polyoxyethylene ether sulfate is 1:19.3.

[0159] Example 9

[0160] A cleaning agent, which is different from Example 1 only in that the anionic surfactant does not contain fatty alcohol polyoxyethylene ether sodium sulfate, and the mass ratio of sodium dodecyl sulfate to sodium α-olefin sulfonate is 1:3.3.

[0161] Example 10

[0162] A cleaning agent, which is different from Example 1 only in that the anionic surfactant is fatty alcohol polyoxyethylene ether sodium sulfate, with a mass percentage of 7.1%.

[0163] Embodiment 11

[0164] A cleaning agent, which is different from Example 1 only in that the anionic surfactant is sodium dodecyl sulfate with a mass percentage of 7.1%.

[0165] Example 12

[0166] A cleaning agent, which is different from Example 1 only in that the anionic surfactant is sodium α-olefin sulfonate with a mass percentage of 7.1%.

[0167] Comparative Example 1

[0168] A cleaning agent, which differs from Example 1 only in that the cleaning agent does not contain anionic surfactant, the mass percentage of nonionic surfactant is 4.15%, and the mass percentage of zwitterionic surfactant is 4.15%.

[0169] Comparative Example 2

[0170] A cleaning agent, which differs from Example 1 only in that the cleaning agent does not contain a nonionic surfactant, the mass percentage of anionic surfactant is 7.65%, and the mass percentage of zwitterionic surfactant is 0.65%.

[0171] Comparative Example 3

[0172] A cleaning agent, which differs from Example 1 only in that the cleaning agent does not contain a zwitterionic surfactant, the mass percentage of anionic surfactant is 7.65%, and the mass percentage of nonionic surfactant is 0.65%.

[0173] Comparative Example 4

[0174] A cleaning agent, which is different from Example 1 only in that the cleaning agent does not contain anionic surfactants and zwitterionic surfactants, and the mass percentage of nonionic surfactants is 8.3%.

[0175] Comparative Example 5

[0176] A cleaning agent, which is different from Example 1 only in that the cleaning agent does not contain anionic surfactants and nonionic surfactants, and the mass percentage of zwitterionic surfactants is 8.3%.

[0177] Comparative Example 6

[0178] A cleaning agent, which differs from Example 1 only in that the cleaning agent does not contain nonionic surfactants and zwitterionic surfactants, the mass percentage of anionic surfactants is 8.3%, and the mass ratio of sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate is 1:3.3:19.3.

[0179] Comparative Example 7

[0180] A cleaning agent, which differs from Example 1 only in that the mass percentage of sulfonic acid is 5%, the mass percentage of deionized water is 84.13%, no pH regulator is included, and the pH of the cleaning agent is less than 5.

[0181] Test Method

[0182] The performance of the cleaning agents provided in the above embodiments and comparative examples was characterized, and the specific testing method was as follows:

[0183] Oil removal rate %: Refer to GB / T 35833-2018 (kitchen oil cleaner) test;

[0184] Corrosiveness to substrates: The cleaning agent of the present invention is sprayed on the surface of a metal substrate and left for 1 hour, or the substrate surface is wiped back and forth for 50 cycles at a speed of 40-60 times / minute. If the substrate surface is smooth without discoloration and obvious scratches after wiping, it is non-corrosive; if the substrate surface is dull after wiping and there are a few inconspicuous scratches on the substrate surface, it is slightly corrosive; if obvious scratches are observed on the substrate surface after wiping, it is obviously corrosive.

[0185] Test Results

[0186] Table 1 Performance test results of cleaning agents prepared in Examples 1-12 and Comparative Examples 1-7

[0187]

[0188]

[0189] The test results show that:

[0190] (1) It can be seen from Examples 1 to 6 that the preferred technical solution of the present invention solves the technical problem that the cleaning agents in the prior art cannot effectively remove heavy oil stains and strong alkaline damage to the surface of the substrate by compounding amphoteric surfactants, anionic surfactants, nonionic surfactants and sulfonates. The oil stain removal rate can reach more than 90%, and the surface of the substrate is not damaged.

[0191] (2) It can be seen from Examples 7 to 12 that when the detergent lacks any one or two of the anionic surfactants in the preferred technical scheme of the present invention, the compounding effect of the anionic surfactants, as well as the anionic surfactants with the amphoteric surfactants, nonionic surfactants and sulfonates becomes poor, and the oil removal rate is reduced.

[0192] (3) It can be seen from Example 1 and Comparative Examples 1-6 that when the detergent does not use / lacks amphoteric surfactants, anionic surfactants or nonionic surfactants, the technical effect of highly efficient cleaning of heavy oil pollution cannot be achieved.

[0193] (4) It can be seen from Example 1 and Comparative Example 7 that when the amount of sulfonic acid in the cleaning agent is excessive, the system is strongly acidic, and the sulfonic acid is highly corrosive to the substrate, and is not suitable for cleaning oil stains on electrical appliances such as range hoods.

[0194] Figure 1 The figure shows the comparison effect before and after cleaning the range hood cover and oil net with heavy oil stains using the cleaning agent provided in Example 1 of the present invention.

[0195] Figure 2The figure shows the comparison effect before and after using the cleaning agent provided in Example 1 of the present invention to clean the heavy oil stain on the range hood bellows.

[0196] Figure 3 The comparison diagram of the cleaning effect before and after using the cleaning agent provided in Example 1 of the present invention to clean the heavy oil stain on the fan wheel of the range hood is shown;

[0197] Combination Figures 1 to 3 It can be seen that the cleaning agent has an excellent cleaning effect on heavy oil stains on the range hood cover, oil net, bellows and wind wheel.

[0198] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A cleaning agent, characterized in that: The raw materials of the cleaning agent include the following components by mass percentage:

2. The cleaning agent according to claim 1, characterized in that The chelating agent includes ethylenediaminetetraacetic acid disodium salt and / or ethylenediaminetetraacetic acid tetrasodium salt.

3. The cleaning agent according to claim 1 or 2, characterized in that The raw materials of the cleaning agent also include 0.1-0.2% of thickener in terms of mass percentage; Preferably, the thickener comprises any one or a combination of at least two of carboxymethyl cellulose, propylene glycol alginate, methyl cellulose, sodium starch phosphate or sodium carboxymethyl cellulose; Preferably, the raw materials of the cleaning agent further include 1.5-2% sodium chloride in terms of mass percentage; Preferably, the raw materials of the cleaning agent further include 0.1-0.2% of a pH regulator in terms of mass percentage; Preferably, the pH adjuster comprises an aqueous solution of citric acid; Preferably, the mass concentration of the citric acid aqueous solution is 0.05-0.2wt%; Preferably, the water is deionized water; Preferably, the pH value of the cleaning agent is 5.5-6.

5.

4. The cleaning agent according to any one of claims 1 to 3, characterized in that The amphoteric surfactant includes any one of amine oxide, sodium lauryl aminopropionate or sodium myristoyl alanine, or a combination of at least two thereof, preferably amine oxide.

5. The cleaning agent according to any one of claims 1 to 4, characterized in that The nonionic surfactant includes any one of alkyl glucoside, isomeric alcohol polyoxyethylene ether or polyoxyethylene amide, or a combination of at least two thereof, preferably alkyl glucoside.

6. The cleaning agent according to any one of claims 1 to 5, characterized in that: The anionic surfactant includes any one of dodecyl sulfate, α-olefin sulfonate, and fatty alcohol polyoxyethylene ether sulfate, or a combination of at least two of them, preferably a combination of sodium dodecyl sulfate, sodium α-olefin sulfonate, and sodium fatty alcohol polyoxyethylene ether sulfate; Preferably, the mass ratio of the sodium dodecyl sulfate, sodium α-olefin sulfonate and sodium fatty alcohol polyoxyethylene ether sulfate is 1:(1.2-3.5):(10-4).

7. The cleaning agent according to any one of claims 1 to 6, characterized in that: The sulfonic acid includes any one of methanesulfonic acid, p-toluenesulfonic acid, o-cresolsulfonic acid, p-styrenesulfonic acid or dodecylbenzenesulfonic acid, or a combination of at least two thereof.

8. A method for preparing the cleaning agent according to any one of claims 1 to 7, characterized in that: The preparation method comprises the following steps: The raw material components of the cleaning agent are mixed according to the formula amount to obtain the cleaning agent.

9. The preparation method according to claim 8, characterized in that: The mixed material further includes any one or a combination of at least two of a thickener, sodium chloride or a pH adjuster; Preferably, the mixing stirring speed is 100-200r / min; Preferably, the mixing time is 10-30 min; Preferably, the preparation method comprises the following steps: preparing a saturated sodium chloride solution, mixing a chelating agent, a thickener, an amphoteric surfactant, a nonionic surfactant, an anionic surfactant, a sulfonic acid, sodium hydroxide, a saturated sodium chloride solution and water to obtain a premixed solution, and mixing the premixed solution with a pH regulator to obtain the cleaning agent; Preferably, the pH value of the premix solution is 6.5-7.

5.

10. Use of the cleaning agent according to any one of claims 1 to 7 in kitchen cleaning.

Images