Cleaning agent composition as well as preparation method and application thereof

Abstract

The invention belongs to the field of daily chemical products, and discloses a cleaning agent composition as well as a preparation method and application thereof, the cleaning agent composition comprises the following components in parts by weight: 2-40 parts of a surfactant, 10-60 parts of a chelating agent, 0.1-5 parts of an antioxidant, 1-10 parts of an enzyme preparation and water; and the pH range of the cleaning agent composition is 7.0-9.0. According to the cleaning agent composition disclosed by the invention, all the components in the formula are synergistically matched, so that the pH value of the cleaning agent composition is low and is close to neutral, thereby greatly reducing the damage to tableware and prolonging the service life of the tableware; and meanwhile, the cleaning agent also has high cleaning ability and good water solubility, is easy to rinse and has no residue.

Description

Technical Field

[0001] This invention belongs to the field of daily chemical products, specifically, it relates to a cleaning agent composition, its preparation method and application. Background Technology

[0002] With the fast pace of life, dishwashers are gradually becoming a common household appliance, especially among younger generations. Dishwashers free consumers from the tedious and laborious task of washing dishes, saving them energy and offering ease of operation. Dishwasher-safe detergents have also emerged and formed a significant market.

[0003] Currently, dishwasher detergents include solid detergents such as dishwasher tablets and powders; dishwasher pods; and a small number of liquid dishwashers. Solid detergents are characterized by high cleaning power but also high abrasiveness because they contain insoluble solid particles, increasing friction on dishes. Additionally, solid detergents have a high pH, ​​which can further increase corrosion at high temperatures. Dishwasher pods contain both powder and liquid, typically combining both within different cavities of a single pod. They share the characteristics of solid detergents, but the damage to dishes is not significantly reduced; although the amount of powder is smaller, the pH value is still relatively high. Several existing liquid dishwashers, while relatively mild, still have a pH above 10.0, even reaching 11.5. This high pH also corrodes dishes during the washing process.

[0004] Chinese patent application No. 202211600343.2 discloses a liquid detergent for automatic dishwashers. This liquid detergent contains a colored stain removal enhancing composition comprising an oxidase and an enzymatic synergist in a mass ratio of 10:1 to 1:1. The liquid detergent also contains 0.1-50% alkaline additives by mass percentage. Chinese patent application No. 201811622555.4 discloses a low-foaming liquid cleaning solution for household dishwashers and its preparation method. The raw materials of this cleaning solution include a water softener, an alkaline degreaser, a surfactant, a dispersant, a defoamer, a bleach, a biological enzyme, and water. The aforementioned technical solutions contain alkaline additives or alkaline degreasers, which can still cause significant corrosion and damage to tableware during washing.

[0005] The problem that needs to be solved is how to provide a cleaning agent composition that is gentle on tableware yet has high cleaning power.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] This invention provides a cleaning agent composition, its preparation method, and its application. The cleaning agent composition of this invention has a low, near-neutral pH due to the synergistic effect of its components, thereby significantly reducing damage to tableware and extending its service life. Simultaneously, the cleaning agent possesses high cleaning power, good water solubility, and is easy to rinse without residue.

[0008] The basic concept of the technical solution adopted in this invention is:

[0009] This invention provides a cleaning agent composition comprising the following components:

[0010]

[0011] And water; the pH range of the cleaning agent composition is 7.0-9.0.

[0012] The cleaning agent composition of the present invention has two advantages. First, the synergistic effect of the various components in the formula results in a low pH of the cleaning agent composition, which is close to neutral, thereby greatly reducing damage to tableware and extending the service life of tableware. Second, the cleaning agent also has excellent cleaning power, which is no weaker than that of detergents with high pH. At the same time, it has good water solubility, is easy to rinse without residue, and can be rinsed clean in one rinse.

[0013] Furthermore, the surfactant includes low-foaming surfactants and nonionic surfactants, wherein the mass ratio of the low-foaming surfactant to the nonionic surfactant is 0.2-10:1;

[0014] Furthermore, the mass ratio of the low-foaming surfactant to the nonionic surfactant is 0.5-5:1.

[0015] In this invention, the addition of low-foaming surfactants can improve the hydrophilic and oleophilic properties of stains, providing a certain detergency. Furthermore, their low foaming properties reduce the amount of foam generated during washing, preventing excessive foam from increasing mechanical resistance and affecting the normal operation of the equipment (e.g., dishwasher). Nonionic surfactants primarily provide strong detergency, but adding only nonionic surfactants results in excessive foam during washing, while adding only low-foaming surfactants fails to achieve the desired detergency. This invention discovers that only when low-foaming surfactants and nonionic surfactants are added in a ratio of 0.2-10:1 can good detergency be achieved while maintaining a suitable level of foam during washing.

[0016] Low-foaming surfactants have good emulsifying, solubilizing, and suspending properties, and are an important component of cleaning agents. There are many types, such as polyethers, block polymers, and fatty alcohol alkoxy compounds.

[0017] As one embodiment, the low-foaming surfactant of the present invention is selected from at least one of fatty alcohol EO-PO block polyether, propylene glycol block polyether, poloxamer, and fatty alcohol alkoxy compounds.

[0018] Nonionic surfactants possess high surface activity, excellent solubilizing, detergency, antistatic, and calcium soap dispersing properties, low irritation, and superior wetting and detergency functions. Based on the structure of their hydrophilic groups, they can be classified into polyoxyethylene type, polyol type, alkanolamide type, polyether type, and amine oxide type, among others.

[0019] As one embodiment, the nonionic surfactant of the present invention is selected from at least one of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and fatty acid polyoxyethylene ester.

[0020] Furthermore, chelating agents are compounds containing two or more coordinating atoms, which can react with metal ions or atoms to form complexes with cyclic structures. They effectively prevent metal ions such as calcium and magnesium from reacting chemically during washing to form scale, indirectly enhancing washing power. There are many types of chelating agents, such as aminocarboxylic acids, hydroxycarboxylic acids, organophosphorus compounds, organic polyphosphonic acids, inorganic metal ions, and phosphates.

[0021] In one embodiment, the chelating agent of the present invention includes a first chelating agent and a second chelating agent, wherein the mass ratio of the first chelating agent and the second chelating agent is 0.3-5:1;

[0022] The first chelating agent is a novel green chelating agent, selected from at least one of sodium methylglycine diacetate and sodium glutamate diacetate;

[0023] The second chelating agent is a conventional chelating agent selected from at least one of sodium citrate, ethylenediaminetetraacetic acid or its salt, and diethylenetriaminepentaacetic acid or its salt;

[0024] In a further embodiment, the mass ratio of the first chelating agent to the second chelating agent is 0.5-3:1.

[0025] The present invention incorporates two types of chelating agents, which differ in their activity levels and functionalities. However, the present invention has found that when the first and second chelating agents are added in the aforementioned mass ratio, complementary chelating forces are achieved, resulting in a synergistic effect. Adding only one type of chelating agent only exhibits its own chelating force, leading to suboptimal results. Controlling the mass ratio of the first and second chelating agents to 0.3-5:1 achieves a superior chelating effect.

[0026] Furthermore, antioxidants act as scavengers, blockers, and repair agents for free radicals and reactive oxygen species. They can achieve the effects of anti-oxidation, preventing discoloration, and enhancing stability.

[0027] As one embodiment, the antioxidant of the present invention is selected from at least one of sodium metabisulfite, sodium borohydride, and thiourea dioxide.

[0028] Furthermore, enzyme preparations act as catalysts for various chemical changes in living organisms. Enzyme preparations are biochemical products that retain catalytic activity after being extracted from the cells or tissues of a living organism using physical or chemical methods and processed. They are characterized by high efficiency, specificity, mild reaction conditions, reduced energy consumption, and reduced chemical pollution.

[0029] In one embodiment, the enzyme preparation of the present invention is selected from at least one of protease, lipase, amylase, and pectinase; that is, the enzyme preparation is a single enzyme or a complex enzyme containing a single enzyme.

[0030] Furthermore, the enzyme preparation is a complex of protease, lipase and amylase;

[0031] Furthermore, the mass ratio of the protease:lipase:amylase is (1-5):1:(0.5-2).

[0032] Furthermore, the cleaning agent composition includes 0-5 parts by weight of a suspending agent.

[0033] Suspension agents, also known as gelling agents, are substances that increase the viscosity of latex or liquids, thereby maintaining a uniform and stable suspended or emulsified state. Suspension agents can be broadly classified into natural and synthetic categories. Most natural products are derived from plants and algae containing polysaccharide-based viscous substances, such as starch, gum arabic, pectin, agar, gelatin, seaweed gum, carrageenan, and dextrin. Synthetic products include carboxymethyl cellulose, propylene glycol alginate, methyl cellulose, sodium starch phosphate, sodium carboxymethyl cellulose, sodium alginate, casein, sodium polyacrylate, polyoxyethylene, and polyvinylpyrrolidone.

[0034] Furthermore, the suspending agent described in this invention is selected from at least one of carboxymethyl cellulose or its salt, methyl cellulose, carbomer, xanthan gum, and gum arabic.

[0035] Furthermore, the cleaning agent composition includes 0-10 parts by weight of an auxiliary agent;

[0036] Furthermore, the additives include dispersants and scale inhibitors, preservatives, flavorings (fragrances), and pigments;

[0037] Furthermore, the dispersant and scale inhibitor is selected from at least one of the following: sodium salt of maleic acid acrylic copolymer, polyethyleneimine ethoxylate (HP20), hydrophobic modified carboxylic acid copolymer (747), and acrylic acid dispersant.

[0038] Furthermore, the cleaning agent composition includes 0-10 parts by weight of solvent;

[0039] Furthermore, the solvent is selected from alcohols;

[0040] Furthermore, the solvent is selected from polyols or low-carbon alcohols;

[0041] Furthermore, the polyol is selected from at least one of propylene glycol, glycerol, polyethylene glycol, ethylene glycol, and sorbitol;

[0042] Furthermore, the lower alcohol is selected from at least one of ethanol, n-butanol, and isopropanol.

[0043] Furthermore, the cleaning agent composition of the present invention is a liquid.

[0044] This invention provides a method for preparing the dishwasher cleaning agent as described above, comprising:

[0045] (1) Add the first chelating agent, nonionic surfactant, second chelating agent and low foaming surfactant to the water in the following order, and stir until uniform after each component is added;

[0046] (2) Adjust the pH to 7.0-9.0 while stirring;

[0047] (3) Add enzyme preparation and antioxidant during stirring, stir evenly to obtain cleaning agent composition;

[0048] Preferably, the preparation method includes:

[0049] (1) Add the suspending agent to the water at low speed in batches. After it is completely added, stir at high speed to mix it evenly.

[0050] (2) Add the first chelating agent, nonionic surfactant, second chelating agent, low foaming surfactant and auxiliary agent in sequence during stirring. Stir until uniform after each component is added.

[0051] (3) Add further during stirring to adjust the pH to 7.0-9.0;

[0052] (4) Add enzyme preparation and antioxidant during stirring, stir evenly to obtain cleaning agent composition.

[0053] A further preferred embodiment of the preparation method includes:

[0054] (1) Add the suspending agent to the water at low speed in batches. After it is completely added, stir at high speed (above 1000 rpm) for more than 30 minutes.

[0055] (2) Add the first chelating agent while stirring, control the speed to be above 400 rpm, and stir until uniform;

[0056] (3) Add nonionic surfactant while stirring, control the speed to above 600 rpm, and stir until uniform;

[0057] (4) Add the second chelating agent while stirring, control the speed to above 600 rpm, and stir until uniform;

[0058] (5) Add low-foaming surfactant while stirring, control the speed to about 800 rpm, and stir until uniform;

[0059] (6) Add scale inhibitor, preservative, flavoring agent and pigment while stirring, control the speed to about 800 rpm and stir until uniform;

[0060] (7) Add pH adjuster while stirring to adjust the pH to between 7.0 and 9.0;

[0061] (8) Add enzyme preparation and antioxidant during stirring, and stir for more than 30 minutes to ensure uniformity.

[0062] In step (1), the suspending agent is added in batches to ensure that it does not clump together; the high-speed stirring speed is above 1000 rpm to ensure uniform dispersion.

[0063] In step (2), the addition of the first chelating agent will not increase but will moderately reduce the viscosity of the material, so that it will not clump together when the raw materials are added later, ensuring uniform mixing. The speed is controlled at more than 400 rpm to ensure uniform mixing without introducing a large amount of foam due to excessive speed.

[0064] In step (3), a nonionic surfactant is added to ensure that the viscosity does not increase too much. The nonionic surfactant is added in advance so that the low-foaming surfactant can be more easily and evenly dispersed later. The rotation speed is controlled at more than 600 rpm to make the dispersion more uniform.

[0065] In step (4), the second chelating agent is generally in a solid state. Adding it at this time can ensure dissolution and also moderately increase the viscosity.

[0066] In step (5), adding a low-foaming surfactant can control the foam, and since a nonionic surfactant has already been added, it can be more easily dispersed evenly;

[0067] In step (6), various additives (dispersant scale inhibitor, preservative, flavoring agent, pigment) are added in sequence;

[0068] In step (7), the pH is adjusted before adding the enzyme to ensure a suitable environment for the enzyme and prevent the enzyme from becoming inactive due to excessively high pH.

[0069] The pH adjuster is selected from one or more of citric acid and sodium hydroxide; this avoids the excessive introduction of other ions.

[0070] In step (8), adding enzyme preparations and antioxidants after adjusting the pH can ensure the activity of the enzyme.

[0071] This invention provides the application of the cleaning agent composition described herein in washing stains on the surface of hard articles;

[0072] Furthermore, the stains include food residue stains;

[0073] Furthermore, the stains include oil stains, tea stains, coffee stains, egg white stains, juice and beverage residue;

[0074] Furthermore, the hard items include tableware;

[0075] Furthermore, the application of cleaning agent compositions in the dishwashing process of dishwashing equipment.

[0076] The dishwashing equipment can be any existing equipment, such as a household dishwasher or a large-scale dishwashing machine. In other words, the cleaning agent composition of this invention can be a cleaning agent for dishwashing equipment (such as a dishwasher).

[0077] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0078] 1. The cleaning agent composition obtained by the combination of the various components of the present invention has a low pH and weak alkalinity, and has weak chemical corrosiveness to tableware during the washing process, thereby reducing damage to tableware and extending the service life of tableware.

[0079] 2. The cleaning agent composition of the present invention is in liquid state, highly water-soluble, and contains no insoluble particles. During the washing process, there is no particle friction on the tableware, resulting in minimal mechanical damage to the tableware.

[0080] 3. This invention, through the coordination of its various components, achieves high cleaning power even at a low pH. The cleaning agent composition utilizes low-foaming surfactants and nonionic surfactants, a first chelating agent, a second chelating agent, and enzyme preparations, etc., and the appropriate proportions of the components are controlled to maximize the synergistic effect of each effective substance, achieving highly efficient cleaning power.

[0081] 4. The cleaning agent composition of the present invention also has good water solubility, produces little foam, is easy to rinse, and achieves the effect of no residue.

[0082] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0083] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0084] Figure 1 These are images of the wear state of tableware during damage assessment according to the present invention; where A represents the state before washing, B represents the state with wear, and C represents the state with severe wear.

[0085] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0086] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0087] Testing method:

[0088] All embodiments and comparative examples used the same washing equipment, washing method, and testing method:

[0089] 1. Washing methods and equipment

[0090] Choose a commercially available and properly functioning household dishwasher and select the standard wash program.

[0091] 2. Use water

[0092] Laboratory water should have an inlet temperature controlled at (15±1)℃ and a water hardness of 250mg / L.

[0093] 3. Tableware and stains

[0094] Simulate user scenarios, 8 types of stains, 13 types of tableware used in 6 sets.

[0095]

[0096] 4. Detergent dosage: (20±0.5)g

[0097] 5. Cleanliness test:

[0098] Each piece of tableware is scored based on the degree to which it has been cleaned, with a maximum score of 5 points for each item:

[0099] 5 points - completely clean;

[0100] 4 points - Original stains removed, but no more than 3 secondary stains remain;

[0101] 3 points - Original stains removed, but no more than 6 secondary stains remain;

[0102] 2 points - Original stains removed, but more than 6 secondary stains remain;

[0103] 1-2 or fewer original stains remaining;

[0104] 0 points - 2 or more original stains remaining;

[0105] Finally, add up the scores for all the cleaned dishes and divide the total score by the total number of dishes to get the final score. The higher the score, the greater the cleaning power.

[0106] 6. Damage Assessment

[0107] Repeat the washing process continuously, comparing the number of washes until the surface of the glazed oil dish begins to show wear. Observe after 10 washes, and stop after 100 washes. See attached images for wear indication. Figure 1 In this context, A represents the state before washing, B represents the state with wear, and C represents the state with severe wear.

[0108] 7. Rinsing and Residue Determination

[0109] Take the middle 100ml of the final drain, and add 30ml of it to a 100ml graduated stoppered cylinder. Shake it up and down 10 times and observe the water level and foam height. The water level and foam height represent rinsing performance and residue. A height of 33ml or less indicates no residue, while a height higher than 33ml indicates residue.

[0110] Example 1

[0111] Composition of the cleaning agent composition (total parts by weight: 100 parts):

[0112] LF221 (fatty alcohol polyoxyalkyl ether) 7 parts, AEO3 (fatty alcohol polyoxyethylene ether) 3 parts, GLDA (sodium glutamate diacetate) 25 parts, EDTA 10 parts, sodium metabisulfite 1 part, protease 1 part, lipase 1 part, amylase 1 part, deionized water balance, pH=8.2.

[0113] Preparation method:

[0114] (1) Add GLDA to water with low-speed stirring, control the speed to above 400 rpm, and stir for 10 minutes until uniform;

[0115] (2) Add AEO3 while stirring, control the speed to about 600 rpm, and stir for 5 minutes until uniform;

[0116] (3) Add EDTA while stirring, control the speed to about 600 rpm, and stir for 15 minutes until uniform;

[0117] (4) Add LF221 while stirring, control the speed to about 800 rpm, and stir for 10 minutes until uniform;

[0118] (5) Add 0.04 parts of 20% citric acid aqueous solution while stirring to adjust the pH to 8.1;

[0119] (6) Add protease, lipase, amylase and sodium metabisulfite while stirring, and stir for 30 minutes to ensure uniformity.

[0120] Example 2

[0121] Composition of the cleaning agent composition (total parts by weight: 100 parts):

[0122] LF221 (fatty alcohol polyoxyalkylene ether) 5 parts, AEO5 (fatty alcohol polyoxyethylene ether) 7 parts, GLDA (sodium glutamate diacetate) 15 parts, sodium citrate 15 parts, sodium metabisulfite 0.5 parts, protease 2 parts, lipase 1 part, amylase 1 part, carbomer 1 part, auxiliaries (HP20 2.2 parts, Kathon 0.5 parts, fragrance 0.2 parts, pigment 0.1 parts) 3 parts, solvent (propylene glycol 2 parts, glycerol 1 part) 3 parts, deionized water balance. pH = 8.5.

[0123] Preparation method:

[0124] (1) Add carbomer to the water at low speed in batches. After it is completely added, stir at high speed (above 1000 rpm) for 30 minutes.

[0125] (2) Add GLDA while stirring, control the speed at 400-500 rpm, and stir for 10 minutes until uniform;

[0126] (3) Add AEO5 while stirring, control the speed to about 600 rpm, and stir for 10 minutes until uniform;

[0127] (4) Add sodium citrate while stirring, control the speed at 600-700 rpm, and stir for 15 minutes until uniform;

[0128] (5) Add LF221 while stirring, control the speed to about 800 rpm, and stir for 20 minutes until uniform;

[0129] (6) Add HP20, Kathon, flavoring agent and coloring while stirring, control the speed to about 800 rpm and stir for 10 minutes until uniform;

[0130] (7) Add propylene glycol and glycerol while stirring, control the speed to about 800 rpm, and stir for 10 minutes until uniform;

[0131] (8) Add pH adjuster (0.05 parts of 20% citric acid aqueous solution) while stirring to adjust pH to 8.5;

[0132] (9) Add protease, lipase, amylase and sodium metabisulfite while stirring, and stir for 30 minutes to ensure uniformity.

[0133] Example 3

[0134] Composition of the cleaning agent composition (total parts by weight: 100 parts):

[0135] GENAPOL EP 2584 (carboxylic alcohol (C12-15) OE-OP block copolymer) 10 parts, alkyl glycoside 5 parts, sodium methylglycine diacetate 5 parts, sodium citrate 30 parts, sodium metabisulfite 1 part, protease 1 part, lipase 0.5 parts, amylase 0.2 parts, sodium carboxymethyl cellulose 1.5 parts, auxiliaries (acrylic acid 5 parts, preservative ME 0.3 parts, fragrance 0.4 parts, pigment 0.3 parts) 6 parts, solvent (polyethylene glycol) 1 part, deionized water balance. pH = 7.0

[0136] The preparation method is the same as in Example 2.

[0137] Example 4

[0138] Composition of the cleaning agent composition (total parts by weight: 100 parts):

[0139] GENAPOL EP 0244 (fatty alcohol alkoxy compounds) 1 part, APEO (alkylphenol polyoxyethylene ether compounds) 20 parts, sodium methylglycine diacetate 30 parts, EDTA (ethylenediaminetetraacetic acid) 5 parts, thiourea dioxide 0.1 parts, protease 5 parts, lipase 1 part, amylase 0.5 parts, adjuvants (preservative ME 0.3 parts, fragrance 0.5 parts, pigment 0.2 parts) 1 part, solvent (propylene glycol) 1 part, deionized water balance. pH = 9.0

[0140] The preparation method is the same as in Example 2.

[0141] Example 5

[0142] Composition of the cleaning agent composition (total parts by weight: 100 parts):

[0143] PE6400 (block polyether) 20 parts, fatty acid polyoxyethylene ester 1 part, sodium glutamate diacetate 12 parts, sodium citrate 10 parts, sodium metabisulfite 5 parts, protease 6 parts, lipase 3 parts, amylase 1 part, xanthan gum 0.9 parts, additives (HP20 1.5 parts, preservative 0.3 parts, fragrance 0.2 parts) 2 parts, solvent (propylene glycol 3 parts, polyethylene glycol 2 parts) 5 parts, deionized water balance. pH = 7.5

[0144] The preparation method is the same as in Example 2.

[0145] Example 6

[0146] Composition of the cleaning agent composition (total parts by weight: 100 parts):

[0147] LF403 (low-foaming isomeric alcohol) 2 parts, AEO7 (fatty alcohol polyoxyethylene ether) 3 parts, sodium glutamate diacetate 10 parts, sodium citrate 10 parts, sodium metabisulfite 0.8 parts, protease 7 parts, lipase 2 parts, amylase 1 part, carbomer 1.5 parts, deionized water balance. pH = 8.0

[0148] The preparation method is the same as in Example 2.

[0149] Comparative Example 1

[0150] Commercially available dishwasher tablets: Finish dishwasher tablets 20g / tablet, pH=13.5

[0151] Composition: Phosphate, borate, oxygen bleach, preservative.

[0152] Comparative Example 2

[0153] Commercially available dishwasher detergent: Wanban Dishwasher Detergent (Minions version), pH=13.2

[0154] Composition: Sodium carbonate, chelating agent, sodium percarbonate, biological enzyme preparation, nonionic surfactant.

[0155] Comparative Example 3

[0156] Commercially available dishwasher detergent pods: Finish dishwasher detergent pods, 12.5g / pod, pH=12.5

[0157] Composition: Nonionic surfactants, oxygen-based bleaching agents, phosphates, polycarboxylate salts, enzyme preparations, fragrances, and colorants.

[0158] Comparative Example 4

[0159] Commercially available dishwashing liquid: Henkel Somat, pH=12.5

[0160] Composition: Surfactant, chelating dispersant, enzyme preparation, alkali.

[0161] The cleaning agent compositions prepared in Examples 1-6 were tested and compared with the commercially available products in Comparative Examples 1-4. The test results are shown in the table below.

[0162] Table 1

[0163]

[0164]

[0165] Results analysis:

[0166] The cleaning agent compositions prepared in Examples 1-6 of the present invention showed only slight wear or no wear on tableware after 100 washes, which significantly reduced the degree of wear on tableware compared with the commercially available products in Comparative Examples 1-4.

[0167] When the cleaning agent compositions prepared in Examples 1-6 of this invention are used to wash tableware, the cleaning power scores are all above 4, which can reach the cleaning power of commercially available solid dishwashing utensils in the comparative example, and are significantly improved compared with commercially available dishwashing pods and dishwashing liquid.

[0168] In addition, using the same rinsing method, the cleaning agent compositions prepared in Examples 1-6 of the present invention are easy to rinse and leave no residue after washing tableware.

[0169] Therefore, the cleaning power of the cleaning agent composition of the present invention is no less than that of commercially available dishwashing machine detergents; the cleaning agent of the present invention causes less abrasion to tableware; the cleaning agent of the present invention is easy to rinse and leaves no residue.

[0170] Effect of surfactant type and ratio in Comparative Example 5

[0171] The differences between the experimental groups in this comparative example and Example 3 are as follows:

[0172] Group 5-1: Contains no GENAPOL EP 2584 (carboxylic alcohol (C12-15) OE-OP block copolymer), 15 parts of alkyl glycoside, and the other components are the same as in Example 3.

[0173] Group 5-2: 15 parts of GENAPOL EP 2584 (carboxylic alcohol (C12-15) OE-OP block copolymer), which does not contain alkyl glycosides, and the other components are the same as in Example 3.

[0174] Group 5-3: GENAPOL EP 2584 (carboxylic alcohol (C12-15) OE-OP block copolymer) and alkyl glycosides in a mass ratio of 15:1, totaling 15 parts;

[0175] Group 5-4: GENAPOL EP 2584 (carboxylic alcohol (C12-15) OE-OP block copolymer) and alkyl glycosides in a mass ratio of 0.1:1, totaling 15 parts.

[0176] Effect of type and ratio of chelating agent in Comparative Example 6

[0177] Group 6-1: Contains no GLDA, 30 parts sodium citrate, and other components are the same as in Example 2.

[0178] Group 6-2: 30 parts of GLDA, without sodium citrate, other components are the same as in Example 2.

[0179] Group 6-3: The mass ratio of GLDA to sodium citrate is 10:1, and there are 30 parts in total. The other components are the same as in Example 2.

[0180] Group 6-4: The mass ratio of GLDA to sodium citrate is 1:10, and there are 30 parts in total. Other components are the same as in Example 2.

[0181] Effects of Protease Type and Ratio in Comparative Example 7

[0182] Group 7-1: Contains no protease, amylase and lipase (4 parts total), other components are the same as in Example 2.

[0183] Group 7-2: Contains no amylase, but contains 4 portions of protease and lipase. Other components are the same as in Example 2.

[0184] Group 7-3: Contains no lipase, but contains 4 portions of protease and amylase; other components are the same as in Example 2.

[0185] Group 7-4: 4 portions of protease, without amylase and lipase, other components are the same as in Example 2.

[0186] Group 7-5: 4 parts amylase, without protease and lipase, other components are the same as in Example 2.

[0187] Group 7-6: 4 portions of lipase, without amylase and protease, other components are the same as in Example 2.

[0188] Group 7-7: The mass ratio of protease, amylase and lipase is 0.5:1:0.1, and there are 4 portions in total. The other components are the same as in Example 2.

[0189] Groups 7-8: The mass ratio of protease, amylase and lipase is 0.5:1:1.5, and there are 4 portions in total. The other components are the same as in Example 2.

[0190] Groups 7-9: The mass ratio of protease, amylase and lipase is 0.5:1:3, and there are 4 portions in total. The other components are the same as in Example 2.

[0191] Groups 7-10: The mass ratio of protease, amylase and lipase is 2:1:0.1, and there are 4 portions in total. The other components are the same as in Example 2.

[0192] Groups 7-11: The mass ratio of protease, amylase and lipase is 2:1:3, and there are 4 portions in total. Other components are the same as in Example 2.

[0193] Groups 7-12: The mass ratio of protease, amylase and lipase is 8:1:0.1, and there are 4 portions in total. The other components are the same as in Example 2.

[0194] Groups 7-13: The mass ratio of protease, amylase and lipase is 8:1:1.5, and there are 4 portions in total. The other components are the same as in Example 2.

[0195] Groups 7-14: The mass ratio of protease, amylase and lipase is 8:1:3, and there are 4 portions in total. Other components are the same as in Example 2.

[0196] Table 2

[0197]

[0198]

[0199] Results analysis:

[0200] As can be seen from the four sets of results in Comparative Example 5, compared with Example 3, when the cleaning agent composition contains only one surfactant, or when the mass ratio of the two surfactants is not in the range of (0.2-10):1, the cleaning power is poor, even though it does not damage the tableware.

[0201] As can be seen from the four sets of results in Comparative Example 6, compared with Example 2, when the cleaning agent composition contains only one chelating agent, or when the mass ratio of the two chelating agents is not in the range of (0.3-5):1, the degree of damage to the tableware is similar to that in Example 2, but the cleaning power is significantly reduced compared with Example 2.

[0202] Similarly, the results of 14 groups in Comparative Example 7 show that when the enzyme preparation in the cleaning agent composition lacks one or two of the enzymes such as protease, lipase, and amylase, or when the ratio is not suitable, the degree of damage to the tableware is similar to that in Example 2, but the cleaning power is significantly reduced compared to Example 2.

[0203] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A cleaning agent composition, characterized in that, The components include the following parts by weight: And water; the pH range of the cleaning agent composition is 7.0-9.

0.

2. The cleaning agent composition according to claim 1, characterized in that, The surfactants include low-foaming surfactants and nonionic surfactants, wherein the mass ratio of the low-foaming surfactant to the nonionic surfactant is 0.2-10:1; Preferably, the mass ratio of the low-foaming surfactant to the nonionic surfactant is 0.5-5:

1. Preferably, the low-foaming surfactant is selected from at least one of fatty alcohol EO-PO block polyether, propylene glycol block polyether, poloxamer, and fatty alcohol alkoxy compounds; Preferably, the nonionic surfactant is selected from at least one of fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and fatty acid polyoxyethylene ester.

3. The cleaning agent composition according to claim 1, characterized in that, The chelating agent comprises a first chelating agent and a second chelating agent, wherein the mass ratio of the first chelating agent to the second chelating agent is 0.3-5:1; The first chelating agent is selected from at least one of sodium methylglycine diacetate and sodium glutamate diacetate; The second chelating agent is selected from at least one of sodium citrate, ethylenediaminetetraacetic acid or its salt, and diethylenetriaminepentaacetic acid or its salt; Preferably, the mass ratio of the first chelating agent to the second chelating agent is 0.5-3:

1.

4. The cleaning agent composition according to any one of claims 1-3, characterized in that, The antioxidant is selected from at least one of sodium metabisulfite, sodium borohydride, and thiourea dioxide.

5. The cleaning agent composition according to any one of claims 1-3, characterized in that, The enzyme preparation is selected from at least one of protease, lipase, amylase, and pectinase; Preferably, the enzyme preparation is a complex of protease, lipase and amylase; Preferably, the mass ratio of the protease:lipase:amylase is (1-5):1:(0.5-2).

6. The cleaning agent composition according to any one of claims 1-3, characterized in that, Includes 0-5 parts by weight of suspending agent; Preferably, the suspending agent is selected from at least one of carboxymethyl cellulose or its salt, methyl cellulose, carbomer, xanthan gum, and gum arabic.

7. The cleaning agent composition according to any one of claims 1-3, characterized in that, Includes 0-10 parts by weight of additives; said additives are selected from one or more of dispersants, scale inhibitors, preservatives, flavoring agents, and pigments; Preferably, the dispersant and scale inhibitor is selected from at least one of sodium maleic acid-acrylic acid copolymer, polyethyleneimine ethoxylate, hydrophobic modified carboxylic acid copolymer, and acrylic acid dispersant.

8. The cleaning agent composition according to any one of claims 1-3, characterized in that, Includes 0-10 parts by weight of solvent, wherein the solvent is selected from alcohols; Preferably, the solvent is selected from polyols or low-carbon alcohols; Preferably, the polyol is selected from at least one of propylene glycol, glycerol, polyethylene glycol, ethylene glycol, and sorbitol; Preferably, the lower alcohol is selected from at least one of ethanol, n-butanol, and isopropanol.

9. A method for preparing a cleaning agent composition according to any one of claims 1-8, characterized in that, include: (1) Add the first chelating agent, nonionic surfactant, second chelating agent and low foaming surfactant to the water in the following order, and stir until uniform after each component is added; (2) Adjust the pH to 7.0-9.0 while stirring; (3) Add enzyme preparation and antioxidant during stirring, stir evenly to obtain cleaning agent composition; Preferred, including: (1) Add the suspending agent to the water at low speed in batches. After it is completely added, stir at high speed to mix it evenly. (2) Add the first chelating agent, nonionic surfactant, second chelating agent, low foaming surfactant and auxiliary agent in sequence during stirring. Stir until uniform after each component is added. (3) Adjust the pH to 7.0-9.0 while stirring; (4) Add enzyme preparation and antioxidant during stirring, stir evenly to obtain cleaning agent composition.

10. The use of a cleaning composition as described in any one of claims 1-8 in washing stains on the surface of hard articles; Preferably, the stain includes food residue stains; Preferably, the hard article includes tableware; Preferably, the cleaning agent composition is used in the tableware washing process of tableware washing equipment.

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