阅读说明：本技术 低泡抗菌表面活性剂、含其的洗碗机清洁片及其制备方法 (Low-foaming antibacterial surfactant, dish-washing machine cleaning sheet containing low-foaming antibacterial surfactant and preparation method of dish-washing machine cleaning sheet ) 是由 徐冯逸如 黄斌 聂永倩 陈骥 宋辉 于 2020-12-18 设计创作，主要内容包括：本申请涉及一种低泡抗菌表面活性剂,其为经过改性的脂肪胺聚氧乙烯醚或者经过改性的脂肪胺聚氧乙烯聚氧丙烯醚,所述改性包括对所述脂肪胺聚氧乙烯醚或者脂肪胺聚氧乙烯聚氧丙烯醚进行烷基化改性和季铵化改性。本申请还涉及一种源自如上所述的低泡抗菌表面活性剂的洗碗机清洁片及其制备方法。本文所述的新型表面活性剂以烷基封端,从而具有较好的消泡性能,且因为含有季铵化结构,所以同时还具有抑菌效果,使得制备的洗碗机清洁片具有良好的低泡抗菌性能。(The application relates to a low-foam antibacterial surfactant which is modified fatty amine polyoxyethylene ether or modified fatty amine polyoxyethylene polyoxypropylene ether, wherein the modification comprises alkylation modification and quaternization modification of the fatty amine polyoxyethylene ether or the fatty amine polyoxyethylene polyoxypropylene ether. The present application also relates to a dishwasher cleaning tablet derived from a low-foaming antimicrobial surfactant as described above and a method of making the same. The novel surfactant is terminated by alkyl, so that the novel surfactant has better defoaming performance, and simultaneously has a bacteriostatic effect because of containing a quaternized structure, so that the prepared dishwasher cleaning sheet has good low-foam antibacterial performance.)

1. The low-foam antibacterial surfactant is characterized by being modified fatty amine polyoxyethylene ether or modified fatty amine polyoxyethylene polyoxypropylene ether, wherein the modification comprises alkylation modification and quaternization modification of the fatty amine polyoxyethylene ether or the fatty amine polyoxyethylene polyoxypropylene ether.

2. The low-foaming antimicrobial surfactant according to claim 1, wherein the low-foaming antimicrobial surfactant has the following structure represented by the following general formula (1) or general formula (2):

in the general formula (1), R is C₁₈H₃₇Or C₁₂H₂₅N is any positive integer between 15 and 50, and X is Cl;

on-lineIn the formula (2), R is C₁₈H₃₇Or C₁₂H₂₅A is any positive integer between 15 and 50, b is any positive integer between 2 and 10, and X is Cl.

3. A dishwasher cleaning sheet comprising a low-foaming antimicrobial surfactant according to claim 1 or 2.

4. A dishwasher cleaning tablet according to claim 3 comprising the following components in parts by weight:

5. a dishwasher cleaning tablet according to claim 4, further comprising, on a parts by weight basis:

0.1-0.5 part of plant essence.

6. A dishwasher cleaning sheet according to claim 4 or 5 wherein the acidic agent is at least one of one or more organic acids, inorganic acids, organic acid salts and derivatives, inorganic acid salts and derivatives having a pKa of from 1 to 10, preferably at least one of a mono-, di-, tri-, mono-or polycarboxylic acid, more preferably at least one of citric, adipic, glutaric, 3-ketoglutaric, citramalic, tartaric, maleic, fumaric, malic, succinic, malonic acid;

the alkaline agent is a carbonate or bicarbonate, preferably a bicarbonate.

7. A dishwasher cleaning tablet according to claim 4 or 5 wherein the filler is anhydrous sodium sulphate;

the scale inhibitor is an acrylic acid/maleic acid copolymer;

the disintegrant is crospovidone.

8. The dishwasher cleaning sheet according to claim 4 or 5, wherein the binder is polyethylene glycol having a number average molecular weight of 600-10000;

the water softener is disodium ethylene diamine tetraacetate;

the moisture-inducing agent is sodium chloride.

9. A dishwasher cleaning tablet according to claim 3 comprising the following components in parts by weight:

15 parts of modified laurylamine polyoxyethylene polyoxypropylene ether, 2 parts of sodium bicarbonate, 2 parts of citric acid, 20 parts of anhydrous sodium sulphate, 10 parts of acrylic acid/maleic acid copolymer, 1 part of crospovidone, 5 parts of PEG10000, 2 parts of disodium ethylene diamine tetraacetate, 3 parts of sodium chloride and 0.1 part of plant essence;

alternatively, the first and second electrodes may be,

10 parts of modified quaternized tallow amine polyoxyethylene ether, 6 parts of sodium bicarbonate, 9 parts of citric acid, 10 parts of anhydrous sodium sulphate, 5 parts of acrylic acid/maleic acid copolymer, 3 parts of cross-linked povidone, 1 part of PEG10000, 0.5 part of disodium ethylene diamine tetraacetate, 0.5 part of sodium chloride and 0.1 part of plant essence;

alternatively, the first and second electrodes may be,

20 parts of modified quaternized tallow amine polyoxyethylene polyoxypropylene ether, 10 parts of sodium bicarbonate, 20 parts of citric acid, 5 parts of anhydrous sodium sulphate, 1 part of acrylic acid/maleic acid copolymer, 5 parts of crospovidone, 4 parts of PEG10000, 5 parts of disodium ethylene diamine tetraacetate, 8 parts of sodium chloride and 0.5 part of plant essence.

10. A method for preparing the dishwasher detergent tablet according to claim 4, comprising uniformly mixing the low foaming antibacterial surfactant according to claim 1 or 2 with alkali, acid, filler, scale inhibitor, disintegrant, binder, water softener, moisture guiding agent and optionally plant essence, and tabletting to obtain the dishwasher detergent tablet.

Technical Field

The application relates to the technical field of organic chemistry and daily chemicals, in particular to a surfactant with a low-foam antibacterial function and a dish-washing machine cleaning sheet containing the surfactant.

Background

Along with the progress of science and technology, the requirements of people on the quality of life are continuously increased. The automatic dish washer has the advantages of simple operation and convenient and fast use, and has multiple functions of cleaning, disinfecting, drying, storing and the like, so the automatic dish washer is popularized and applied in more and more families. The washing program of the common dish washer is divided into four steps of pre-washing, main washing, rinsing and drying. Compared with liquid detergent and powder detergent, the tablet-shaped cleaning tablet can be slowly released in water and is more suitable for a dish washing machine due to convenience in addition.

The surfactant is one of main effective components of the dish-washing machine cleaning sheet, plays a role in emulsifying and dispersing greasy dirt, and determines the washing and cleaning effects of the cleaning sheet due to the performance of the surfactant. The surfactants traditionally used in kitchen washing on the market today are liquid based and are not suitable for the preparation of solid cleaning tablets. And a small amount of solid surfactant can generate a large amount of foam in use, the foam is not easy to eliminate, and the water consumption of the dishwasher can be increased when the solid surfactant is used in the cleaning sheet, so that the solid surfactant is not beneficial to energy conservation and environmental protection.

In addition, due to the sealing performance of part of pipelines and devices in the dish washing machine, part of organic dirt such as fat, protein and the like is remained in the washing process, and bacteria are easy to breed. For this purpose, an oxidizing antibacterial agent such as sodium percarbonate is added to the cleaning sheet. The introduction of the oxidizing substances in the damp and hot dishwasher is easy to cause oxidation corrosion to metal and rubber devices, and the service life of the dishwasher can be reduced.

For this reason, there is a continuing need in the art to develop a surfactant having a low foaming antibacterial function and a dishwasher cleaning sheet comprising the same.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a surfactant having a low foaming antibacterial function, thereby solving the above technical problems in the prior art.

The present application also aims to provide a method for preparing a low-foaming antimicrobial surfactant.

It is also an object of the present application to provide a dishwasher cleaning tablet comprising a low-foaming antimicrobial surfactant as described above.

The object of the present application is also to provide a method for preparing a dishwasher cleaning tablet as described above.

In order to solve the above technical problems, the present application provides the following technical solutions.

In a first aspect, the present application provides a low-foaming antimicrobial surfactant, wherein the low-foaming antimicrobial surfactant is a modified fatty amine polyoxyethylene ether or a modified fatty amine polyoxyethylene polyoxypropylene ether, and the modification comprises alkylation modification and quaternization modification of the fatty amine polyoxyethylene ether or the fatty amine polyoxyethylene polyoxypropylene ether.

In one embodiment of the third aspect, the low-foaming antimicrobial surfactant has the following structure represented by the following general formula (1) or general formula (2):

in the general formula (1), R is C₁₈H₃₇Or C₁₂H₂₅N is any positive integer between 15 and 50, and X is Cl;

in the general formula (2), R is C₁₈H₃₇Or C₁₂H₂₅A is any positive integer between 15 and 50, b is any positive integer between 2 and 10, and X is Cl.

In a second aspect, the present application provides a method for preparing a low-foaming antimicrobial surfactant as described above, comprising alkylating and quaternizing a fatty amine polyoxyethylene ether or a fatty amine polyoxyethylene polyoxypropylene ether.

In a third aspect, the present application provides a dishwasher cleaning tablet characterised in that it comprises a low foaming antimicrobial surfactant as described in the first aspect.

In one embodiment of the third aspect, the dishwasher cleaning tablet comprises the following components in parts by weight:

in one embodiment of the third aspect, the dishwasher cleaning tablet further comprises, on a parts by weight basis:

0.1-0.5 part of plant essence.

In one embodiment of the third aspect, the acidic reagent is at least one of one or more organic acids, inorganic acids, organic acid salts and derivatives, inorganic acid salts and derivatives having a pKa of 1 to 10, preferably at least one of a simple molionic acid, a double protonic acid, a triple protonic acid, a mono-carboxylic acid or a poly-carboxylic acid, and more preferably at least one of citric acid, adipic acid, glutaric acid, 3-ketoglutaric acid, citramalic acid, tartaric acid, maleic acid, fumaric acid, malic acid, succinic acid, malonic acid;

the alkaline agent is a carbonate or bicarbonate, preferably a bicarbonate.

In one embodiment of the third aspect, the filler is anhydrous sodium sulphate;

the scale inhibitor is an acrylic acid/maleic acid copolymer;

the disintegrant is crospovidone.

In one embodiment of the third aspect, the binder is polyethylene glycol having a number average molecular weight of 600-;

the water softener is disodium ethylene diamine tetraacetate;

the moisture-inducing agent is sodium chloride.

In one embodiment of the third aspect, the dishwasher cleaning tablet comprises the following components in parts by weight: 15 parts of modified laurylamine polyoxyethylene polyoxypropylene ether, 2 parts of sodium bicarbonate, 2 parts of citric acid, 20 parts of anhydrous sodium sulphate, 10 parts of acrylic acid/maleic acid copolymer, 1 part of crospovidone, 5 parts of PEG10000, 2 parts of disodium ethylene diamine tetraacetate, 3 parts of sodium chloride and 0.1 part of plant essence.

In one embodiment of the third aspect, the dishwasher cleaning tablet comprises the following components in parts by weight: 10 parts of modified quaternized tallow amine polyoxyethylene ether, 6 parts of sodium bicarbonate, 9 parts of citric acid, 10 parts of anhydrous sodium sulphate, 5 parts of acrylic acid/maleic acid copolymer, 3 parts of cross-linked povidone, 1 part of PEG10000, 0.5 part of disodium ethylene diamine tetraacetate, 0.5 part of sodium chloride and 0.1 part of plant essence;

in one embodiment of the third aspect, the dishwasher cleaning tablet comprises the following components in parts by weight: 20 parts of modified quaternized tallow amine polyoxyethylene polyoxypropylene ether, 10 parts of sodium bicarbonate, 20 parts of citric acid, 5 parts of anhydrous sodium sulphate, 1 part of acrylic acid/maleic acid copolymer, 5 parts of crospovidone, 4 parts of PEG10000, 5 parts of disodium ethylene diamine tetraacetate, 8 parts of sodium chloride and 0.5 part of plant essence.

In this embodiment, the modification comprises alkylation modification and quaternization modification of the fatty amine polyoxyethylene ether or fatty amine polyoxyethylene polyoxypropylene ether.

In a fourth aspect, the present application provides a method for preparing a dishwasher detergent tablet according to the third aspect, wherein the method comprises uniformly mixing the low foaming antimicrobial surfactant according to the first aspect with an alkali, an acid, a filler, a scale inhibitor, a disintegrant, a binder, a water softener, a moisture scavenger and optionally a plant essence, and tabletting to obtain the dishwasher detergent tablet.

Compared with the prior art, the invention has the advantages that: the novel surfactant is terminated by alkyl, so that the novel surfactant has better defoaming performance, and simultaneously has a bacteriostatic effect because of containing a quaternized structure, so that the prepared dishwasher cleaning sheet has good low-foam antibacterial performance.

Detailed Description

Unless otherwise indicated, implied from the context, or customary in the art, all parts and percentages herein are by weight and the testing and characterization methods used are synchronized with the filing date of the present application. Where applicable, the contents of any patent, patent application, or publication referred to in this application are incorporated herein by reference in their entirety and their equivalent family patents are also incorporated by reference, especially as they disclose definitions relating to synthetic techniques, products and process designs, polymers, comonomers, initiators or catalysts, and the like, in the art. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definitions provided herein, the definition of the term provided herein controls.

The numerical ranges in this application are approximations, and thus may include values outside of the ranges unless otherwise specified. A numerical range includes all numbers from the lower value to the upper value, in increments of 1 unit, provided that there is a separation of at least 2 units between any lower value and any higher value. For example, if a compositional, physical, or other property (e.g., molecular weight, melt index, etc.) is recited as 100 to 1000, it is intended that all individual values, e.g., 100, 101,102, etc., and all subranges, e.g., 100 to 166,155 to 170,198 to 200, etc., are explicitly recited. For ranges containing a numerical value less than 1 or containing a fraction greater than 1 (e.g., 1.1, 1.5, etc.), then 1 unit is considered appropriate to be 0.0001, 0.001, 0.01, or 0.1. For ranges containing single digit numbers less than 10 (e.g., 1 to 5), 1 unit is typically considered 0.1. These are merely specific examples of what is intended to be expressed and all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be expressly stated in this application. It should also be noted that the terms "first," "second," and the like herein do not define a sequential order, but merely distinguish between different structures.

When used with respect to chemical compounds, the singular includes all isomeric forms and vice versa (e.g., "hexane" includes all isomers of hexane, individually or collectively) unless expressly specified otherwise. In addition, unless explicitly stated otherwise, the use of the terms "a", "an" or "the" are intended to include the plural forms thereof.

The terms "comprising," "including," "having," and derivatives thereof do not exclude the presence of any other component, step or procedure, and are not intended to exclude the presence of other elements, steps or procedures not expressly disclosed herein. To the extent that any doubt is eliminated, all compositions herein containing, including, or having the term "comprise" may contain any additional additive, adjuvant, or compound, unless expressly stated otherwise. Rather, the term "consisting essentially of … …" excludes any other components, steps or processes from the scope of any of the terms hereinafter recited, except those necessary for performance. The term "consisting of … …" does not include any components, steps or processes not specifically described or listed. Unless explicitly stated otherwise, the term "or" refers to the listed individual members or any combination thereof.

In a first aspect, the present application provides a surfactant having a low foaming antimicrobial function. The present application also provides a dishwasher cleaning sheet having a low-foaming antibacterial function comprising the surfactant, which is applied to a dishwasher.

Compared with the prior art, the technical scheme provided by the invention has the advantages that halogenated methane such as methyl chloride or methyl bromide is adopted to modify fatty amine polyoxyethylene ether or fatty amine polyoxyethylene polyoxypropylene ether with a special structural design, and the low-foam antibacterial surfactant for the cleaning sheet is prepared. The modified fatty amine polyoxyethylene ether or fatty amine polyoxyethylene polyoxypropylene ether has the terminal hydroxyl group substituted by methyl, so that the generation of foam can be effectively reduced. Meanwhile, tertiary amine in the fatty amine polyoxyethylene ether or the fatty amine polyoxyethylene polyoxypropylene ether is quaternized by methyl halide to generate modified fatty amine polyoxyethylene ether or fatty amine polyoxyethylene polyoxypropylene ether with antibacterial property.

And then removing excessive sodium salt through post-treatment to obtain low-foam antibacterial modified quaternized fatty amine polyoxyethylene ether and fatty amine polyoxyethylene polyoxypropylene ether, fully stirring and mixing the low-foam antibacterial surfactant with additives such as a chelating agent, a buffering agent, a scale inhibitor, plant essence, a binder PEG10000, a moisture-guiding agent sodium chloride and the like, uniformly mixing, and tabletting to obtain the dish-washing machine cleaning tablet.

In one embodiment, the fatty amine polyoxyethylene ether is tallow amine polyoxyethylene ether or laurylamine polyoxyethylene ether, and the structural formula of the fatty amine polyoxyethylene ether is as follows:

wherein R is C₁₈H₃₇、C₁₂H₂₅One of (1); n is any positive integer between 15 and 50.

In one embodiment, the fatty amine polyoxyethylene polyoxypropylene ether is tallow amine polyoxyethylene polyoxypropylene ether or laurylamine polyoxyethylene polyoxypropylene ether, and has the general structural formula:

wherein R is C₁₈H₃₇、C₁₂H₂₅One of (1); a is any positive integer between 15 and 50, and b is 2 to 10.

In one embodiment, the modified fatty amine polyoxyethylene ether has the structural formula:

wherein R is C₁₈H₃₇、C₁₂H₂₅One of (1); n is any positive integer between 20 and 50.

In one embodiment, the modified fatty amine polyoxyethylene polyoxypropylene ether has the structural formula:

wherein R is C₁₈H₃₇、C₁₂H₂₅One of (1); a is any positive integer between 20 and 50, and b is 2 to 10.

In a preferred embodiment, the dishwasher cleaning sheet comprises the following raw materials in parts by mass:

modified fatty amine polyoxyethylene/polyoxyethylene polyoxypropylene ether: 10-20 parts;

sodium bicarbonate: 2-10 parts;

citric acid: 2-20 parts of a solvent;

anhydrous sodium sulphate: 5-20 parts of a solvent;

acrylic acid/maleic acid copolymer: 1-10 parts;

cross-linked povidone: 1-5 parts;

1-5 parts of PEG 10000;

disodium ethylene diamine tetraacetate: 0.5-5 parts;

sodium chloride: 0.5-8 parts;

plant essence: 0.1 to 0.5 portion.

The above preferred conditions can be arbitrarily combined to obtain preferred embodiments of the present invention without departing from the common general knowledge in the art.

The reagents and starting materials used in the present invention are commercially available.

The percentage in the invention is the mass percentage of each component in the total amount of the raw materials.

Examples

The technical solutions of the present application will be clearly and completely described below with reference to the embodiments of the present application. The reagents and raw materials used are commercially available unless otherwise specified. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.

In the examples described below, anhydrous sodium sulphate is marketed as a bulk standard; acrylic acid/maleic acid copolymers were purchased from Shandongtai and Water treatment technologies, Inc.; crospovidone was purchased from satay science; the plant essence is obtained from rose essence of Yunya spice of Jiangmen city; PEG10000 is produced by Shanghai east China.

Synthetic examples

Example one

(1) And (3) adding 184g of laurylamine and 21.3g of sodium methoxide into the high-temperature high-pressure kettle in sequence, stirring and dissolving, heating to 90-110 ℃, and vacuumizing for 1 hour to remove methanol. Continuously heating to 130-140 ℃, introducing 4400g of ethylene oxide under-0.1 MPa for reaction, controlling the reaction temperature at 130-150 ℃ and the pressure at 0.1-0.3 MPa. Curing for 1 hour after the ethylene oxide reaction, continuously introducing 580g of propylene oxide for reaction, controlling the reaction temperature at 110-120 ℃ and the pressure at 0.1-0.3 MPa, and curing for 1 hour after the propylene oxide reaction. Degassing at-0.1 MPa for 30 min; cooling to 65-75 ℃ after degassing, adding 60g of sodium methoxide, stirring for dissolving, degassing for 2h under-0.1 MPa, continuously introducing 191.9g of chloromethane, reacting for 10h under 0.1-0.3 MPa, heating to 90-100 ℃, and degassing for 30min under-0.1 MPa; and after degassing, adding 75g of phosphoric acid, 150g of water, 12g of diatomite and 12g of magnesium aluminum silicate, uniformly stirring, dehydrating at 90-110 ℃ and-0.08-0.1 MPa, filtering until the water content is less than 0.1%, and desalting to obtain the modified quaternized laurylamine polyoxyethylene polyoxypropylene ether.

(2) According to the mixture ratio of the embodiment in the table 1, the modified quaternary ammonium laurylamine polyoxyethylene polyoxypropylene ether, sodium bicarbonate, citric acid, anhydrous sodium sulphate, acrylic acid/maleic acid copolymer, cross-linked povidone, PEG10000, disodium ethylene diamine tetraacetate, sodium chloride and plant essence are fully stirred and mixed, and then the mixture is tabletted to prepare the dish-washing machine cleaning tablet.

Example two

(1) 264g of tallow amine and 17.6g of sodium methoxide are sequentially added into a high-temperature high-pressure kettle, stirred and dissolved, then the temperature is raised to 90-110 ℃, and the high-temperature high-pressure kettle is vacuumized for 1 hour to remove methanol. Continuously heating to 130-140 ℃, introducing 2200g of ethylene oxide under-0.1 MPa for reaction, controlling the reaction temperature at 130-150 ℃ and the pressure at 0.1-0.3 MPa. Curing for 1h after the reaction of the ethylene oxide is finished, and then degassing for 30min under-0.1 MPa; cooling to 65-75 ℃ after degassing, adding 70g of sodium methoxide, stirring for dissolving, degassing for 2h under-0.1 MPa, continuously introducing 176.8g of methyl chloride, reacting for 8h under 0.1-0.3 MPa, heating to 90-100 ℃, and degassing for 30min under-0.1 MPa; after degassing, adding 32g of phosphoric acid, 80g of water, 5g of diatomite and 5g of magnesium aluminum silicate, uniformly stirring, dehydrating at 90-110 ℃, and at-0.08-0.1 MPa until the water content is less than 0.1%, and filtering to remove salt to obtain the modified quaternized tallow amine polyoxyethylene ether.

(2) According to the proportion of the second embodiment in the table 1, the modified quaternized tallow amine polyoxyethylene ether, sodium bicarbonate, citric acid, anhydrous sodium sulphate, acrylic acid/maleic acid copolymer, crospovidone, PEG10000, disodium ethylene diamine tetraacetate, sodium chloride and plant essence are fully stirred and mixed, and then the dish-washing machine cleaning tablet is prepared after tabletting.

EXAMPLE III

(1) 264g of tallow amine and 15.3g of sodium methoxide are sequentially added into a high-temperature high-pressure kettle, stirred and dissolved, then the temperature is raised to 90-110 ℃, and the high-temperature high-pressure kettle is vacuumized for 1 hour to remove methanol. Continuously heating to 130-140 ℃, introducing 1320g of ethylene oxide under-0.1 MPa for reaction, controlling the reaction temperature at 130-150 ℃ and the pressure at 0.1-0.3 MPa; curing for 1 hour after the ethylene oxide reaction is finished, continuously introducing 116g of propylene oxide for reaction, controlling the reaction temperature to be 110-120 ℃ and the pressure to be 0.1-0.3 MPa, and curing for 1 hour after the propylene oxide reaction is finished; degassing at-0.1 MPa for 30 min; after the degassing is finished, cooling to 65-75 ℃, adding 73g of sodium methoxide, stirring and dissolving, degassing for 3h under-0.1 MPa, then continuously introducing 173g of chloromethane, reacting for 9h under 0.1-0.3 MPa, heating to 90-100 ℃, and degassing for 30min under-0.1 MPa; and after degassing, adding 29g of phosphoric acid, 680g of water, 6g of diatomite and 6g of magnesium aluminum silicate, uniformly stirring, dehydrating at 90-110 ℃ and-0.08-0.1 MPa, filtering until the water content is less than 0.1%, and desalting to obtain the modified quaternized tallow amine polyoxyethylene polyoxypropylene ether.

(2) According to the third mixture ratio of the embodiment in the table 1, the modified quaternized tallow amine polyoxyethylene polyoxypropylene ether, sodium bicarbonate, citric acid, anhydrous sodium sulphate, acrylic acid/maleic acid copolymer, cross-linked povidone, PEG10000, disodium ethylene diamine tetraacetate, sodium chloride and plant essence are fully stirred and mixed, and then the dish-washing machine cleaning tablet is prepared after tabletting.

Effects of the embodiment

Washing daily household dinner plates by using the dishwasher and the washing program of the dishwasher cleaning sheets prepared in the first embodiment, the second embodiment and the third embodiment and a commercially available cleaning sheet (type: leucine, LARGE); and (3) performing a suspension quantitative antibacterial test on the washed rinsing liquid according to the WS/T650-2019 standard, and testing the antibacterial effect of different cleaning sheets. Meanwhile, 2.5g of each cleaning sheet is taken according to the GB/T1313.6-2000 standard to measure the foaming power of the detergent (Ross-Miles method) to measure the foaming performance of different cleaning sheets.

Table 1 comparison of different cleaning sheet formulations and application properties.

As can be seen from Table 1, the bacteriostatic agents of the rinsing liquids of the cleaning sheets in the first embodiment, the second embodiment and the third embodiment are all superior to those of the commercial products, and the bacteriostatic rate of the rinsing liquids of the first embodiment and the second embodiment is more than or equal to 50-90%, so that the rinsing liquids of the cleaning sheets in the first embodiment, the second embodiment and the third embodiment have bacteriostatic effects. The third embodiment has a bacteriostasis rate of 91 percent and has a stronger bacteriostasis effect.

In addition, the foam heights of the aqueous solutions of the cleaning sheets of the first, second and third examples are all smaller than those of the commercial products, which shows that the dishwasher cleaning sheets of the first, second and third examples have better low-foam performance.

The embodiments described above are intended to facilitate the understanding and appreciation of the application by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not limited to the embodiments herein, and those skilled in the art who have the benefit of this disclosure will appreciate that many modifications and variations are possible within the scope of the present application without departing from the scope and spirit of the present application.