Liquid washing machine tank antibacterial cleaning agent and preparation method thereof

Abstract

The invention discloses a liquid washing machine tank bacteriostatic cleaning agent and a preparation method thereof, and the liquid washing machine tank bacteriostatic cleaning agent comprises the following components: 1-15 parts by weight of a hydrophilic and oleophylic interfacial agent, 0.5-8 parts by weight of an organic complexing agent, 0.2-5 parts by weight of a bacteriostatic agent, 0.2-6 parts by weight of a rheology modifier, 0.05-2 parts by weight of an additive, and the balance of deionized water, totaling 100 parts by weight.

Description

Technical Field

[0001] The present application belongs to the technical field of washing machine cleaning, and specifically relates to a liquid washing machine tub antibacterial cleaner and a preparation method thereof. Background Art

[0002] At present, most cleaning products for washing machine trough dirt are in the form of solid particles. They need to be soaked in hot water for more than 4 hours when used, and dust will also be generated during the production process. Patents related to washing machine trough cleaning mostly use oxidative bleaching alkaline formula design, with sodium percarbonate, sodium carbonate, sodium bicarbonate, sodium hydroxide, etc. as the main active ingredients. There are slight differences in the efficacy claims of each patent. For example: some compound proteases to enhance decontamination, some add surfactants and chelating agents to improve the decontamination effect, and some use bleach activators to increase the efficiency of peroxide to achieve decontamination efficiencies. However, the dense and stubborn dirt biofilm in the washing machine trough is alkaline dirt, and the alkaline formula has poor peeling effect on this biofilm, and its detergency is poor.

[0003] There are two main formulation systems for liquid washing machine tank cleaning agents in the existing public technology: one uses sodium hypochlorite and sodium hydroxide as the main active ingredients, and some patents are supplemented with surfactants to achieve the purpose of decontamination and sterilization through chlorine bleaching alkaline design; the other is an acidic formula structure, adding pickling agents such as hydrochloric acid, sulfuric acid, nitric acid, citric acid, lactic acid as effective components, supplemented with surfactants and corrosion inhibitors to clean the dirt in the washing machine tank. This type of liquid formula does not require long-term soaking in hot water. Compared with solid particles, it is simple to use, more energy-saving and environmentally friendly, and it also improves the removal of dirt to a certain extent. However, sodium hypochlorite has a pungent odor and is corrosive to the skin and fabrics during use; the liquid material of the pickling agent formula will also not smell comfortable and pleasant, and will corrode the skin, fabrics and washing machine tanks when used. Therefore, the existing liquid formulas have an uncomfortable and unpleasant odor, and long-term use may corrode the washing machine tank.

[0004] Therefore, the development of a new type of antibacterial cleaner for washing machine tubs has great market prospects. Summary of the invention

[0005] The purpose of the present application is to solve the problems of the prior art and to provide a liquid antibacterial cleaning agent for a washing machine tank and a preparation method thereof.

[0006] In order to solve the technical problem, the technical solution of the present application is: a liquid antibacterial cleaner for a washing machine tub, composed of the following components: 1 to 15 parts by weight of a hydrophilic and lipophilic surfactant, 0.5 to 8 parts by weight of an organic chelating agent, 0.2 to 5 parts by weight of an antibacterial agent, 0.2 to 6 parts by weight of a rheology modifier, 0.05 to 2 parts by weight of an additive, and the remainder being deionized water, totaling 100 parts by weight.

[0007] Preferably, the hydrophilic and lipophilic surfactant is 4 to 10 parts by weight, the organic complexing agent is 0.8 to 4 parts by weight, the antibacterial agent is 0.5 to 3 parts by weight, the rheology modifier is 0.5 to 3 parts by weight, the additive is 0.1 to 1 part by weight, and the balance is deionized water.

[0008] Preferably, the hydrophilic and lipophilic surfactant is 8 parts by weight, the organic complexing agent is 1.5 parts by weight, the antibacterial agent is 2.5 parts by weight, the rheology modifier is 0.5 parts by weight, the additive is 0.2 parts by weight, and the balance is deionized water.

[0009] Preferably, the hydrophilic and lipophilic surfactant is one or a mixture of coconut oil fatty acid alkanolamide, EO / PO block structure polyether, isomeric alcohol structure polyoxyethylene ether, dodecyl dimethyl betaine, polyoxyethylene alkanolamide, alkyl glucosides, and cocamidopropyl betaine.

[0010] Preferably, the organic complexing agent is one or a mixture of tetrasodium glutamate diacetate, trisodium methylglycine diacetate, sodium citrate, and sodium glucoheptonate.

[0011] Preferably, the antibacterial agent is one or a mixture of single-chain / double-chain quaternary ammonium salt bactericide, polyhexamethylene biguanide, and chlorhexidine gluconate.

[0012] Preferably, the rheology modifier is one or a mixture of xanthan gum, acrylamide, cellulose, and a nonionic thickener, and the nonionic thickener is polyoxyethylene ether, polyurethane, alkanolamide, or stearate.

[0013] Preferably, the additive is an acid-base regulator, a preservative, a flavor or a pigment.

[0014] Preferably, a method for preparing a liquid antibacterial cleaning agent for a washing machine tank, used for preparing the liquid antibacterial cleaning agent for a washing machine tank, comprises the following steps: Step 1: Add 1 to 15 parts by weight of a hydrophilic-lipophilic surfactant into deionized water, and stir to mix evenly to obtain a solution A; Step 2: Add 0.5 to 8 parts by weight of an organic complexing agent to solution A, stir and mix evenly to obtain solution B; Step 3: Add 0.2 to 5 parts by weight of an antibacterial agent to solution B, and stir until uniformly dissolved to obtain solution C; Step 4: Add 0.2 to 6 parts by weight of a rheology modifier to solution C and stir until uniformly dissolved to obtain solution D; Step 5: Add 0.05 to 2 parts by weight of additives to solution D, stir and mix evenly to obtain liquid E with a uniform and transparent appearance, and prepare a liquid washing machine tank antibacterial cleaner.

[0015] Compared with the prior art, the advantages of this application are: (1) The present application discloses a liquid antibacterial cleaning agent for washing machine troughs, which uses a hydrophilic and lipophilic surfactant with a special structure and is compounded with an organic complexing agent to complex calcium scale and other metal ions, thereby effectively removing stubborn dirt in the washing machine trough and reducing secondary contamination of fabrics; (2) The special structure hydrophilic and lipophilic surfactants in the present application include coconut oil fatty acid alkanolamide, EO / PO block structure polyether, isomeric alcohol structure polyoxyethylene ether, etc. They are adsorbed to the dirt and substrate surface through van der Waals force, dipole interaction or electrostatic action. This adsorption changes the interfacial tension and potential between the dirt, substrate and detergent, increases the contact angle formed by the dirt and substrate, and changes in a direction that is conducive to the detergent to remove dirt, effectively removing stubborn dirt in the washing machine tank; (3) The organic complexing agent in the present application reacts with metal ions through its functional groups carboxyl (-COOH), hydroxyl (-OH) and amino (-NH2). The oxygen atoms in these groups have lone pairs of electrons and can form coordination bonds with the empty orbitals of metal ions to form stable complexes. Such stable complexes not only prevent metal ions from destroying the structure of the hydrophilic and lipophilic surfactants, but also effectively prevent the formation of scale and other deposits caused by metal ions, thereby improving the decontamination effect of the detergent. (4) The antibacterial cleaning agent for the washing machine tub of the present application is neutral and mild, does not corrode the washing machine tub and drum wall, and does not damage clothes; it can achieve both drum washing and clothes washing, which is convenient and efficient, reduces energy consumption, and saves consumers' time; (5) The components used in the antibacterial cleaner for the washing machine trough of the present application are all biodegradable and green and environmentally friendly; the preparation process of the antibacterial cleaner for the washing machine trough of the present application is safe and energy-saving, easy to operate, and does not produce irritating dust or irritating odor. DETAILED DESCRIPTION

[0016] The present application is described in detail below in conjunction with specific embodiments, but the present application is not limited to these embodiments. The present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, specific details are described in detail in the following embodiments of the present application, and those skilled in the art can fully understand the present application without the description of these details.

[0017] The present application discloses a liquid antibacterial cleaning agent for a washing machine tub, which is composed of the following components: 1 to 15 parts by weight of a hydrophilic and lipophilic surfactant, 0.5 to 8 parts by weight of an organic complexing agent, 0.2 to 5 parts by weight of an antibacterial agent, 0.2 to 6 parts by weight of a rheology modifier, 0.05 to 2 parts by weight of an additive, and the remainder being deionized water, totaling 100 parts by weight.

[0018] Preferably, the hydrophilic and lipophilic surfactant is 4 to 10 parts by weight, the organic complexing agent is 0.8 to 4 parts by weight, the antibacterial agent is 0.5 to 3 parts by weight, the rheology modifier is 0.5 to 3 parts by weight, the additive is 0.1 to 1 part by weight, and the balance is deionized water.

[0019] Preferably, the hydrophilic and lipophilic surfactant is 8 parts by weight, the organic complexing agent is 1.5 parts by weight, the antibacterial agent is 2.5 parts by weight, the rheology modifier is 0.5 parts by weight, the additive is 0.2 parts by weight, and the balance is deionized water.

[0020] Preferably, the hydrophilic and lipophilic surfactant is one or a mixture of coconut oil fatty acid alkanolamide, EO / PO block structure polyether, isomeric alcohol structure polyoxyethylene ether, dodecyl dimethyl betaine, polyoxyethylene alkanolamide, alkyl glucosides, and cocamidopropyl betaine.

[0021] The polyether of EO / PO block structure is C8-C 14 Natural alcohol and EO / PO account for 55% to 75%, with excellent hydrophilic and lipophilic properties, outstanding wetting properties, low foaming and narrow gel range, very suitable for hard surface cleaning, dynamic surface tension drops rapidly (a key factor in decontamination), and has strong decontamination performance.

[0022] The structural formula of the polyoxyethylene ether of the isomeric alcohol structure is RO-(C2H4O)nH, where R is generally C8, C 10 , C 11 , C 13 It is a highly efficient dispersant, wetting agent and emulsifier with excellent emulsifying and cleaning properties.

[0023] Preferably, the organic complexing agent is one or a mixture of tetrasodium glutamate diacetate, trisodium methylglycine diacetate, sodium citrate, and sodium glucoheptonate.

[0024] Preferably, the antibacterial agent is one or a mixture of single-chain / double-chain quaternary ammonium salt bactericide, polyhexamethylene biguanide, and chlorhexidine gluconate.

[0025] Preferably, the rheology modifier is one or a mixture of xanthan gum, acrylamide, cellulose, and a nonionic thickener, and the nonionic thickener is polyoxyethylene ether, polyurethane, alkanolamide, or stearate.

[0026] Preferably, the additive is an acid-base regulator, a preservative, a flavor or a pigment.

[0027] Preferably, a method for preparing a liquid antibacterial cleaning agent for a washing machine tank, used for preparing the liquid antibacterial cleaning agent for a washing machine tank, comprises the following steps: Step 1: Add 1 to 15 parts by weight of a hydrophilic-lipophilic surfactant into deionized water, and stir to mix evenly to obtain a solution A; Step 2: Add 0.5 to 8 parts by weight of an organic complexing agent to solution A, stir and mix evenly to obtain solution B; Step 3: Add 0.2 to 5 parts by weight of an antibacterial agent to solution B, and stir until uniformly dissolved to obtain solution C; Step 4: Add 0.2 to 6 parts by weight of a rheology modifier to solution C and stir until uniformly dissolved to obtain solution D; Step 5: Add 0.05 to 2 parts by weight of additives to solution D, stir and mix evenly to obtain liquid E with a uniform and transparent appearance, and prepare a liquid washing machine tank antibacterial cleaner.

[0028] Example 1 The present embodiment discloses a liquid antibacterial cleaner for a washing machine tub, comprising the following raw materials in parts by weight: 5 parts of a hydrophilic and lipophilic surfactant, 3 parts of an organic complexing agent, 3.5 parts of an antibacterial agent, 4 parts of a rheology modifier, 0.5 parts of an additive, and the remainder deionized water, wherein the total parts by weight of each component is 100.

[0029] The hydrophilic and lipophilic surfactant is a mixture of polyoxyethylene ether with isomeric alcohol structure and alkyl glycoside (1:1).

[0030] The organic complexing agent is trisodium methylglycine diacetate.

[0031] The antibacterial agent is a single-chain quaternary ammonium salt bactericide.

[0032] The rheology modifier is cellulose.

[0033] The additive is a conventional acid-base regulator.

[0034] The preparation method of this embodiment is implemented according to the following steps: Step 1: Prepare the following raw materials in parts by weight: 5 parts of hydrophilic and lipophilic surfactant, 3 parts of organic complexing agent, 3.5 parts of antibacterial agent, 4 parts of rheology modifier, 0.5 parts of additives, and the balance of deionized water, the total weight of each component being 100.

[0035] Step 2: Add a hydrophilic and lipophilic surfactant to deionized water at room temperature and stir evenly to obtain solution A; Step 3: Add an organic complexing agent to solution A, and stir and mix them in sequence to obtain solution B; Step 4: Add the antibacterial agent to solution B and stir until it is evenly dissolved to obtain solution C; Step 5: Add the rheology modifier to solution C and stir until it is uniformly dissolved to obtain solution D; Step 6: Add additives to solution D, stir and mix evenly, and finally obtain liquid E with a uniform and transparent appearance, that is, liquid washing machine tank antibacterial cleaner.

[0036] Example 2 The present embodiment discloses a liquid antibacterial cleaner for a washing machine tub, comprising the following raw materials in parts by weight: 10 parts of a hydrophilic and lipophilic surfactant, 4 parts of an organic complexing agent, 3 parts of an antibacterial agent, 3 parts of a rheology modifier, 1 part of an additive, and the remainder of deionized water, wherein the total parts by weight of each component is 100.

[0037] The hydrophilic and lipophilic surfactant is a mixture of polyether with EO / PO block structure and dodecyl dimethyl betaine (1:1).

[0038] The organic complexing agent is tetrasodium glutamate diacetate.

[0039] The antibacterial agent is polyhexamethylene biguanide.

[0040] The rheology modifier is xanthan gum.

[0041] The additives are conventional acid-base regulators and flavors.

[0042] The preparation method of this embodiment is implemented according to the following steps: Step 1: Prepare the following raw materials in parts by weight: 12 parts of hydrophilic and lipophilic surfactants, 5 parts of organic complexing agents, 1 part of antibacterial agents, 1.5 parts of rheology modifiers, 1 part of additives, and the balance of deionized water, the total weight fraction of each component being 100.

[0043] Step 2: Add a hydrophilic and lipophilic surfactant to deionized water at room temperature and stir evenly to obtain solution A; Step 3: Add an organic complexing agent to solution A, and stir and mix them in sequence to obtain solution B; Step 4: Add the antibacterial agent to solution B and stir until it is evenly dissolved to obtain solution C; Step 5: Add the rheology modifier to solution C and stir until it is uniformly dissolved to obtain solution D; Step 6: Add additives to solution D, stir and mix evenly, and finally obtain liquid E with a uniform and transparent appearance, that is, liquid washing machine tank antibacterial cleaner.

[0044] Example 3 The present embodiment discloses a liquid antibacterial cleaner for a washing machine tub, comprising the following raw materials in parts by weight: 8 parts of a hydrophilic and lipophilic surfactant, 1.5 parts of an organic complexing agent, 2.5 parts of an antibacterial agent, 0.5 parts of a rheology modifier, 0.2 parts of an additive, and the remainder deionized water, wherein the total parts by weight of each component is 100.

[0045] The hydrophilic and lipophilic surfactant is a mixture of alkyl glucoside and cocamidopropyl betaine (1:1).

[0046] The organic complexing agent is sodium citrate.

[0047] The bacteriostatic agent is a double-chain quaternary ammonium salt bactericide.

[0048] The rheology modifier is nonionic alkanolamide.

[0049] The additives are conventional preservatives and pigments.

[0050] The preparation method disclosed in this embodiment is implemented according to the following steps: Step 1: Prepare the following raw materials in parts by weight: 8 parts of hydrophilic and lipophilic surfactants, 1.5 parts of organic complexing agents, 2.5 parts of antibacterial agents, 0.5 parts of rheology modifiers, 0.2 parts of additives, and the balance of deionized water, the total weight of each component being 100.

[0051] Step 2: Add a hydrophilic and lipophilic surfactant to deionized water at room temperature and stir evenly to obtain solution A; Step 3: Add an organic complexing agent to solution A, and stir and mix them in sequence to obtain solution B; Step 4: Add the antibacterial agent to solution B and stir until it is evenly dissolved to obtain solution C; Step 5: Add the rheology modifier to solution C and stir until it is uniformly dissolved to obtain solution D; Step 6: Add additives to solution D, stir and mix evenly, and finally obtain liquid E with a uniform and transparent appearance, that is, liquid washing machine tank antibacterial cleaner.

[0052] Example 4 The present embodiment discloses a liquid antibacterial cleaner for a washing machine tub, comprising the following raw materials in parts by weight: 1 part of a hydrophilic and lipophilic surfactant, 0.5 part of an organic complexing agent, 0.2 part of an antibacterial agent, 0.2 part of a rheology modifier, 0.05 part of an additive, and the remainder deionized water, wherein the total parts by weight of each component is 100.

[0053] The hydrophilic and lipophilic surfactant is a mixture of dodecyl dimethyl betaine and polyoxyethylene alkanolamide (1:1).

[0054] The organic complexing agent is sodium glucoheptonate.

[0055] The antibacterial agent is chlorhexidine gluconate.

[0056] The rheology modifier is polyoxyethylene ether.

[0057] The additive is a conventional acid-base regulator.

[0058] The preparation method disclosed in this embodiment is implemented according to the following steps: Step 1: Prepare the following raw materials in parts by weight: 1 part of hydrophilic and lipophilic surfactant, 0.5 part of organic complexing agent, 0.2 part of antibacterial agent, 0.2 part of rheology modifier, 0.05 part of additive, and the balance of deionized water, the total weight of each component being 100.

[0059] Step 2: Add a hydrophilic and lipophilic surfactant to deionized water at room temperature and stir evenly to obtain solution A; Step 3: Add an organic complexing agent to solution A, and stir and mix them in sequence to obtain solution B; Step 4: Add the antibacterial agent to solution B and stir until it is evenly dissolved to obtain solution C; Step 5: Add the rheology modifier to solution C and stir until it is uniformly dissolved to obtain solution D; Step 6: Add additives to solution D, stir and mix evenly, and finally obtain liquid E with a uniform and transparent appearance, that is, liquid washing machine tank antibacterial cleaner.

[0060] Example 5 The present embodiment discloses a liquid antibacterial cleaner for a washing machine tub, comprising the following raw materials in parts by weight: 15 parts of a hydrophilic and lipophilic surfactant, 8 parts of an organic complexing agent, 5 parts of an antibacterial agent, 6 parts of a rheology modifier, 2 parts of an additive, and the remainder of deionized water, wherein the total parts by weight of each component is 100.

[0061] The hydrophilic and lipophilic surfactant is a polyoxyethylene ether with an isomeric alcohol structure.

[0062] The organic complexing agent is trisodium methylglycine diacetate.

[0063] The antibacterial agent is polyhexamethylene biguanide.

[0064] The rheology modifier is acrylamide.

[0065] The additives are conventional acid-base regulators and flavors.

[0066] The preparation method disclosed in this embodiment is implemented according to the following steps: Step 1: Prepare the following raw materials in parts by weight: 15 parts of hydrophilic and lipophilic surfactants, 8 parts of organic complexing agents, 5 parts of antibacterial agents, 6 parts of rheology modifiers, 2 parts of additives, and the balance of deionized water, the total weight of each component being 100.

[0067] Step 2: Add a hydrophilic and lipophilic surfactant to deionized water at room temperature and stir evenly to obtain solution A; Step 3: Add an organic complexing agent to solution A, and stir and mix them in sequence to obtain solution B; Step 4: Add the antibacterial agent to solution B and stir until it is evenly dissolved to obtain solution C; Step 5: Add the rheology modifier to solution C and stir until it is uniformly dissolved to obtain solution D; Step 6: Add additives to solution D, stir and mix evenly, and finally obtain liquid E with a uniform and transparent appearance, that is, liquid washing machine tank antibacterial cleaner.

[0068] The following is a description of the performance test of the liquid antibacterial cleaning agent for washing machine tanks involved in the present invention: Application Example 1: Comparison of pH values ​​between Test Example 1 and commercially available products: The test was carried out according to GB / T 6368, the test temperature was 25°C, and a 1% aqueous solution of the sample was prepared with distilled water.

[0069] The test results are shown in the following table:

[0070] It can be seen from the above table that the liquid antibacterial cleaner for the washing machine tub of the present application is neutral, gently cleans the washing machine tub, does not corrode the washing machine tub and the drum wall, does not cause secondary damage to clothes, and can achieve the effect of both washing the drum and washing clothes.

[0071] Application Example 2: The smell, total solid content and total active matter content of Test Example 2 were compared with those of the commercially available product. The determination was carried out according to the provisions of GB / T 13173.

[0072] The test results are shown in the following table:

[0073] As can be seen from the above table, the liquid antibacterial cleaner for washing machine trough of the present application has a light fragrance, a total solid content of 8.9, and a total active matter content of 8.1, which once again proves that the content of effective substances in the present application is higher than that of commercially available competing products, and can effectively peel off the dense and stubborn dirt biofilm in the washing machine trough, and has a strong effect on removing dirt.

[0074] Application Example 3: The antibacterial rate and metal corrosion (stainless steel) of Examples 3 to 5 were tested.

[0075] The antibacterial rate test was carried out according to the method specified in Section 7.3 of QB / T 2738.

[0076] The test results are as follows:

[0077] Note: QB / T 2738 stipulates that if the antibacterial rate is >50%~90%, the product has antibacterial effect; if the antibacterial rate is ≥90%, the product has strong antibacterial effect.

[0078] The metal corrosion (stainless steel) test is carried out according to the method specified in Section 2.2.4 of the Technical Specifications for Disinfection (Ministry of Health, 2002 edition).

[0079] The test results are shown in the following table:

[0080] It can be seen from the above table that the corrosion rate of the liquid antibacterial cleaner for washing machine troughs in this application on stainless steel is R=0.002637mm / a, and the level is: basically non-corrosive, green and environmentally friendly, does not corrode the washing machine trough and drum wall, and does not damage clothes.

[0081] The present application discloses a liquid antibacterial cleaning agent for washing machine trough, which adopts a hydrophilic and lipophilic surfactant with a special structure and is compounded with an organic complexing agent to complex calcium scale and other metal ions, thereby effectively removing stubborn dirt in the washing machine trough and reducing secondary pollution of fabrics.

[0082] The special structure hydrophilic and lipophilic surfactants in the present application include coconut oil fatty acid alkanolamides, EO / PO block structure polyethers, isomeric alcohol structure polyoxyethylene ethers, etc. They are adsorbed to the dirt and substrate surface through van der Waals force, dipole interaction or electrostatic action. This adsorption changes the interfacial tension and potential between the dirt, substrate and detergent, increases the contact angle formed by the dirt and the substrate, and changes in a direction that is conducive to the detergent to remove dirt, effectively stripping stubborn dirt in the washing machine tank.

[0083] The organic complexing agent in the present application reacts with metal ions through its own functional groups, carboxyl (-COOH), hydroxyl (-OH) and amino (-NH2). The oxygen atoms in these groups have lone pairs of electrons and can form coordination bonds with the empty orbitals of metal ions to form stable complexes. This stable complex not only prevents the metal ions from destroying the structure of the hydrophilic and lipophilic surfactants, but also effectively prevents the formation of scale and other deposits caused by metal ions, thereby improving the decontamination effect of the detergent.

[0084] The antibacterial cleaner for the washing machine tub of the present application is neutral and mild, does not corrode the washing machine tub and drum wall, and does not damage clothes; it can achieve both drum washing and clothes washing, is convenient and efficient, reduces energy consumption, and saves consumers' time.

[0085] The components used in the antibacterial cleaner for the washing machine trough of the present application are all biodegradable and green and environmentally friendly; the preparation process of the antibacterial cleaner for the washing machine trough of the present application is safe and energy-saving, easy to operate, and does not produce irritating dust or irritating odor.

[0086] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present application.

[0087] Many other changes and modifications can be made without departing from the concept and scope of the present application.It should be understood that the present application is not limited to specific embodiments, and the scope of the present application is defined by the appended claims.

Claims

1. A liquid antibacterial cleaning agent for washing machine tank, characterized in that: The invention is composed of the following components: 1 to 15 parts by weight of a hydrophilic and lipophilic surfactant, 0.5 to 8 parts by weight of an organic complexing agent, 0.2 to 5 parts by weight of an antibacterial agent, 0.2 to 6 parts by weight of a rheology modifier, 0.05 to 2 parts by weight of an additive, and the balance being deionized water, which is 100 parts by weight in total.

2. A liquid antibacterial cleaning agent for washing machine tank according to claim 1, characterized in that: 4-10 parts by weight of hydrophilic and lipophilic surfactant, 0.8-4 parts by weight of organic complexing agent, 0.5-3 parts by weight of antibacterial agent, 0.5-3 parts by weight of rheology modifier, 0.1-1 parts by weight of additives, and the balance is deionized water.

3. A liquid antibacterial cleaning agent for washing machine tank according to claim 2, characterized in that: 8 parts by weight of hydrophilic and lipophilic surfactants, 1.5 parts by weight of organic complexing agents, 2.5 parts by weight of antibacterial agents, 0.5 parts by weight of rheology modifiers, 0.2 parts by weight of additives, and the balance being deionized water.

4. A liquid antibacterial cleaning agent for washing machine tank according to claim 3, characterized in that: The hydrophilic and lipophilic surfactant is one or a mixture of coconut oil fatty acid alkanolamide, EO / PO block structure polyether, isomeric alcohol structure polyoxyethylene ether, dodecyl dimethyl betaine, polyoxyethylene alkanolamide, alkyl glucosides, and cocamidopropyl betaine.

5. The liquid antibacterial cleaning agent for washing machine tank according to claim 3, characterized in that: The organic complexing agent is one or a mixture of tetrasodium glutamate diacetate, trisodium methylglycine diacetate, sodium citrate and sodium glucoheptonate.

6. The liquid antibacterial cleaning agent for washing machine tank according to claim 3, characterized in that: The antibacterial agent is one or a mixture of single-chain / double-chain quaternary ammonium salt bactericide, polyhexamethylene biguanide, and chlorhexidine gluconate.

7. The liquid antibacterial cleaning agent for washing machine tank according to claim 3, characterized in that: The rheology modifier is one or a mixture of xanthan gum, acrylamide, cellulose and non-ionic thickener, and the non-ionic thickener is polyoxyethylene ether, polyurethane, alkanolamide or stearate.

8. The liquid antibacterial cleaning agent for washing machine tank according to claim 3, characterized in that: The additives are acid-base regulators, preservatives, flavors or pigments.

9. A method for preparing a liquid antibacterial cleaning agent for a washing machine tank, which is used for preparing a liquid antibacterial cleaning agent for a washing machine tank according to any one of claims 1 to 8, comprising the following steps: Step 1: Add 1 to 15 parts by weight of a hydrophilic-lipophilic surfactant into deionized water, and stir to mix evenly to obtain a solution A; Step 2: Add 0.5 to 8 parts by weight of an organic complexing agent to solution A, stir and mix evenly to obtain solution B; Step 3: Add 0.2 to 5 parts by weight of an antibacterial agent to solution B, and stir until uniformly dissolved to obtain solution C; Step 4: Add 0.2 to 6 parts by weight of a rheology modifier to solution C and stir until uniformly dissolved to obtain solution D; Step 5: Add 0.05 to 2 parts by weight of additives to solution D, stir and mix evenly to obtain liquid E with a uniform and transparent appearance, and prepare a liquid washing machine tank antibacterial cleaner.

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