Decontamination composition, dish washing powder for dish washing machine and washing method

Abstract

The invention relates to the field of detergents, and provides a decontamination composition, dishwashing powder for a dishwasher and a washing method.The decontamination composition is prepared from alkyl glycoside, cellulase and shell powder according to the mass ratio of (1-10): (0.5-3): (1-5); in the decontamination composition, the mass percent of the alkyl glycoside is 1 to 10 percent. According to the detergent composition, the alkyl glycoside, the shell powder and the cellulase are compounded to serve as main decontamination active ingredients, so that multiple stains such as pesticide residues and tea stains are removed by taking the alkyl glycoside as a decontamination surfactant, and particularly, the alkyl glycoside, the shell powder and the cellulase have a synergistic effect on the pesticide residue removal effect.

Description

Technical Field

[0001] This invention relates to the field of mixing technology, and more particularly to cleaning compositions, dishwasher detergent powder, and washing methods. Background Technology

[0002] Consumers' needs for dishwashers are no longer limited to cleaning dishes; more and more families want to use dishwashers to clean fruits and vegetables to remove surface stains and pesticide residues.

[0003] Traditional dishwasher detergents (such as powder and tablets) typically use a high-pH alkaline formula, combined with various low-foaming surfactants and bleach, to remove stubborn heavy grease from dishes. Using these products to wash fruits and vegetables can damage their skin cells, affecting taste, and more importantly, the residual chemicals may pose food safety risks, failing to meet the cleaning requirements for ready-to-eat foods. Conversely, while traditional fruit and vegetable cleaners have milder and safer formulas, their grease-removing ability is relatively weak, making them ineffective against heavy grease on dishes. More importantly, existing fruit and vegetable cleaner formulas are often rich in highly foaming surfactants. Under the high-temperature, high-pressure spray environment of a dishwasher, these high-foaming components generate a large amount of foam, severely weakening the mechanical scouring force of the spray arms and significantly reducing washing effectiveness.

[0004] Among numerous surfactants, alkyl glycosides (APGs) are considered ideal green surfactants due to their natural plant origin, non-toxicity, non-irritation, and good biodegradability. However, APGs have strong foaming properties, producing fine and stable foam. In dishwasher spray conditions, when used as a single surfactant at effective cleaning concentrations, the amount of foam generated is often difficult to control. To suppress APG foaming and improve its emulsifying and dispersing ability for heavy oil stains, current technologies typically require compounding APG with low-foaming nonionic surfactants. However, the introduction of synthetic chemicals often reduces the overall proportion of natural sources in the formulation, increasing the potential residue risk during fruit and vegetable washing, thus deviating from the original intention of "green and residue-free." Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in related technologies. To this end, this invention proposes a stain-removing composition, which uses a detergent composition with alkyl glycosides, shell powder and cellulase as the main stain-removing active ingredients, to achieve the removal of various stains such as pesticide residues and tea stains with alkyl glycosides as the stain-removing surfactant. In particular, the three components show a synergistic effect in removing pesticide residues.

[0006] The present invention also proposes a dishwasher detergent powder.

[0007] The present invention also proposes a washing method.

[0008] According to the present invention, a detergency composition comprises alkyl glycoside, cellulase and shell powder in a mass ratio of (1~10):(0.5~3):(1~5); wherein the mass percentage of the alkyl glycoside in the detergency composition is 1~10%.

[0009] According to the cleaning composition provided by the present invention, the alkyl glycoside is a product obtained by combining natural fatty alcohols and sugars through glycosidic bonds; the natural fatty alcohols have 8 to 16 carbon atoms.

[0010] According to the detergency composition provided by the present invention, the particle size D of the shell powder is... 90 The micrometers are 5-20 micrometers in size and the specific surface area is ≥10 m². 2 / g; Preferably, the shell powder has a particle size D90 of 10-15 micrometers and a specific surface area of ​​20-35 m². 2 / g.

[0011] According to the cleaning composition provided by the present invention, the cleaning composition further includes one or more of the following: protease, amylase, mannanase, and oxidoreductase.

[0012] The detergency composition provided according to the present invention further includes a chelating agent; Preferably, the chelating agent is selected from one or more of hydroxycarboxylic acids, aminopolycarboxylic acids and their salts, and organophosphonic acids.

[0013] The detergency composition provided according to the present invention further includes a polymer dispersant; Preferably, the polymer dispersant is selected from sulfonated polymers and / or polycarboxylate polymers with a molecular weight of 2000 to 80000.

[0014] According to the detergency composition provided by the present invention, the detergency composition is dissolved in water at a mass concentration of 1% with a pH value of 8.5 to 10. Preferably, the detergency composition further includes an alkaline auxiliary agent; the alkaline auxiliary agent is selected from inorganic bases and / or organic amines.

[0015] The detergency composition provided according to the present invention comprises, by weight percentage: Alkyl glycosides 1-10% Cellulase 0.5-3% Other enzymes 1~10% Shell powder 1~5% Alkaline additives 1~30%; Chelating agent 1~40%; Polymer dispersant 0.1~30%; Other additives: 0.1-5%; Filler allowance; The other additives are selected from one or more of pigments, fragrances, defoamers, pH adjusters, corrosion inhibitors, and natural extracts; The other enzymes are selected from one or more combinations of proteases, amylases, mannanases, and oxidoreductases.

[0016] The present invention also provides a dishwashing powder comprising the stain-removing composition described above.

[0017] The present invention also provides a washing method, wherein the carrier is washed using the enzyme-containing detergent composition as described above or the dishwashing powder as described above; Preferably, the washing equipment used is an automatic dishwasher that uses dynamic pressurized spray water flow as the main cleaning power. Preferably, the carrier includes fruits, vegetables, or tableware; the contaminants on the carrier include one or more of the following: wax, pesticide residues, tea stains, oil stains, starch stains, and protein stains.

[0018] This invention provides a stain-removing composition, dishwasher detergent powder, and washing method. By using a detergent composition with alkyl glycosides, shell powder, and cellulase as the main stain-removing active ingredients, it achieves the removal of various stains such as pesticide residues and tea stains with alkyl glycosides as the stain-removing surfactant. In particular, the three components exhibit a synergistic effect in removing pesticide residues.

[0019] The cleaning composition of the present invention can achieve multiple uses in one bottle. It can effectively and safely clean fruits and vegetables and remove pesticide residues, and also effectively clean tableware, thus solving the problem of single function of traditional products.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is one of the schematic diagrams of the foam state in Test Example 1 provided in the embodiments of the present invention; Figure 2 This is the second schematic diagram of the foam state in Test Example 1 provided in the embodiments of the present invention; Figure 3This is the third schematic diagram of the foam state in Test Example 1 provided in the embodiments of the present invention; Figure 4 This is the fourth schematic diagram of the foam state in Test Example 1 provided in the embodiments of the present invention. Detailed Implementation

[0023] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] In a specific embodiment of the present invention, a detergency composition is first provided, comprising alkyl glycoside, cellulase and shell powder in a mass ratio of (1~10):(0.5~3):(1~5); wherein the mass percentage of the alkyl glycoside in the detergency composition is 1~10%.

[0026] In some specific embodiments of the present invention, the alkyl glycoside is a product obtained by combining natural fatty alcohols and sugars with glycosidic bonds; the natural fatty alcohols have 8 to 16 carbon atoms.

[0027] As an example, alkyl glycosides satisfying the above structure include, but are not limited to, one or more of the following: Glucopon 215 CSUP, Glucopon 425N, Glucopon 600csup, and Glucopon 650EC.

[0028] In some specific embodiments of the present invention, the particle size D of the shell powder is... 90 The micrometers are 5-20 micrometers in size and the specific surface area is ≥10 m². 2 / g; In some specific embodiments of the present invention, the shell powder has a particle size D90 of 10-15 micrometers and a specific surface area of ​​20-35 m². 2 / g.

[0029] Furthermore, in order to achieve broad-spectrum cleaning, in some specific embodiments of the present invention, the cleaning composition further includes one or more of the following: protease, amylase, mannanase, and oxidoreductase.

[0030] In this invention, the chelating agent is not only used to soften water, but also to chelate calcium bridges in stains to assist in cleaning.

[0031] In some specific embodiments of the present invention, a chelating agent is also included; In some specific embodiments of the present invention, the chelating agent is selected from one or more of hydroxycarboxylic acids, aminopolycarboxylic acids and their salts, and organophosphonic acids.

[0032] The hydroxycarboxylic acids include citric acid and its salts. These chelating agents have good biodegradability.

[0033] Amino polycarboxylic acids and their salts include ethylenediaminetetraacetic acid (EDTA) and hydroxyethylethylenediaminetriacetic acid (HEDTA). Considering the requirements for environmental protection and high performance, methylglycine diacetic acid (MGDA), glutamic acid diacetic acid (GLDA), aspartic acid diacetic acid (ASDA), and their salts are particularly preferred. These chelating agents exhibit excellent calcium and magnesium complexing capabilities over a wide pH range.

[0034] Organophosphonic acids, such as hydroxyethylidene diphosphonic acid (HEDP) and its salts, have excellent scale inhibition properties.

[0035] To prevent secondary deposition of the washed-off dirt, a polymer dispersant is added to this invention.

[0036] In some specific embodiments of the present invention, a polymer dispersant is also included; wherein the sulfonated polymer is, for example, an acrylic acid-sulfonic acid copolymer.

[0037] In some specific embodiments of the present invention, the polymer dispersant is selected from sulfonated polymers and / or polycarboxylate polymers with a molecular weight of 2000-80000. When the molecular weight is too low, the polymer chain length is insufficient to form effective steric hindrance, resulting in a weak ability to disperse and suspend dirt; when the molecular weight is too high, the polymer solubility decreases, and it easily causes excessive solution viscosity, affecting the flowability of the detergent and the diffusion efficiency of enzymes. Within this preferred range, the polymer can effectively disperse particulate dirt and produce a good synergistic effect with the surfactant system.

[0038] In some specific embodiments of the present invention, the detergency composition is dissolved in water at a mass concentration of 1% with a pH value of 8.5 to 10. Preferably, the detergency composition further includes an alkaline auxiliary agent; the alkaline auxiliary agent is selected from inorganic bases and / or organic amines.

[0039] In some specific embodiments of the present invention, the inorganic base is selected from one or more of sodium metasilicate, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, and sodium disilicate. The combination of sodium carbonate and sodium bicarbonate can form a good buffer pair, preventing drastic pH fluctuations during washing from affecting enzyme activity.

[0040] In some specific embodiments of the present invention, the organic amine is selected from one or more of triethanolamine and monoethanolamine. Organic amines not only adjust pH but also act as solvent aids, improving the stability of detergents at low temperatures.

[0041] In this invention, more preferably, the alkaline additive is one or more of sodium carbonate, sodium bicarbonate, and sodium metasilicate.

[0042] In some specific embodiments of the present invention, the components, by mass percentage, include: Alkyl glycosides 1-10% Cellulase 0.5-3% Other enzymes 1~10% Shell powder 1~5% Alkaline additives 1~30%; Chelating agent 1~40%; Polymer dispersant 0.1~30%; Other additives: 0.1-5%; Filler allowance; The other additives are selected from one or more of pigments, fragrances, defoamers, pH adjusters, corrosion inhibitors, and natural extracts; The other enzymes are selected from one or more combinations of proteases, amylases, mannanases, and oxidoreductases.

[0043] In some specific embodiments of the present invention, the filler is selected from one or more of sulfates and sodium chloride.

[0044] In a specific embodiment of the present invention, a dishwashing powder is also provided, comprising the stain-removing composition as described above.

[0045] In a specific embodiment of the present invention, a method for preparing the dishwashing powder as described above is also provided, which includes mixing the components evenly. The solid components can be directly mixed, while to ensure even mixing, the liquid is slowly and evenly added to the continuously stirred solid powder by spraying or dripping.

[0046] In a specific embodiment of the present invention, a washing method is also provided, in which the carrier is washed using the enzyme-containing detergent composition as described above or the dishwashing powder as described above; Preferably, the washing equipment used is a spray dishwasher, an ultrasonic dishwasher, or a fully automatic high-pressure dishwasher; Preferably, the carrier includes fruits, vegetables, or tableware; the contaminants on the carrier include one or more of the following: wax, pesticide residues, tea stains, oil stains, starch stains, and protein stains.

[0047] The dynamic pressurized spray water flow described in this invention refers to a water flow that is pressurized by a built-in water pump and sprayed at high speed through nozzles, relying on its fluid kinetic energy to directly impact the surface of the item to be cleaned, thereby achieving a cleaning effect.

[0048] Preferably, the automatic dishwasher achieves dynamic pressurized spraying through a rotatable spray arm driven by a brushless DC motor.

[0049] In a preferred embodiment, the washing process includes: a regular dishwashing procedure and / or a fruit and vegetable washing procedure.

[0050] The standard tableware cleaning procedure includes: Main wash water temperature: 40℃ to 80℃, preferably 45℃ to 65℃.

[0051] The water volume for a single main wash cycle is 2L to 5L, preferably 3L to 4L.

[0052] The brushless DC motor driving the spray arm has a speed of 2500 rpm to 3500 rpm, with a typical value of 3100 rpm.

[0053] Main wash duration: 25~100 minutes.

[0054] The fruit and vegetable washing procedure includes: Cleaning water temperature: 10℃ to 40℃, room temperature cleaning is preferred.

[0055] Water volume for a single cleaning cycle: 1L to 3L, preferably 4L to 6L.

[0056] The brushless DC motor driving the spray arm has a speed of 1500 rpm to 2500 rpm.

[0057] Main wash duration: 6-10 minutes.

[0058] The stain-removing composition and dishwashing powder of the present invention will be described in detail below with reference to specific implementation examples.

[0059] Where specific techniques or conditions are not specified in the examples, they shall be performed in accordance with the techniques or conditions described in the literature in this field, or in accordance with the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased through legitimate channels. The sources of some raw materials are as follows: Alkyl glycoside: Glucopon 650 EC, supplier BASF.

[0060] Shell powder A: Particle size D 90 It has a diameter of 15 μm and a specific surface area of ​​25 m². 2 / g.

[0061] Defoamer: DF-8016, Dongguan Defeng Defoamer Co., Ltd.

[0062] PAA: Acusol 445 G.

[0063] Example 1A This embodiment provides a dishwasher detergent powder, the composition of which, by weight percentage, is shown in the table below: Table 1

[0064] This embodiment also provides a method for preparing dishwashing powder as described above, which involves mixing the components evenly.

[0065] Examples 2A-3A, Comparative Examples 1A-2A This example is essentially the same as Example 1A, except that the amount of alkyl glycoside used is shown in the table below: Table 2

[0066] Examples 4A-6A, Comparative Example 3A This is essentially the same as Example 1A, except that the amount of cellulase used is as shown in the table below: Table 3

[0067] Examples 7A-9A, Comparative Example 4A This is basically the same as Example 1A, except that the amount of shell powder A used is shown in the table below: Table 4

[0068] Comparative Examples 5A~10A This is essentially the same as Example 1, except that the amounts of alkyl glycoside, cellulase, and shell powder A are as shown in the table below: Table 5

[0069] Example 10A, Comparative Examples 11A-15A This is essentially the same as Example 1, except that the amounts of alkyl glycoside, cellulase, and shell powder A are as shown in the table below: Table 6

[0070] Example 11A, Comparative Examples 16A~20A This is essentially the same as Example 1, except that the amounts of alkyl glycoside, cellulase, and shell powder A are as shown in the table below: Table 7

[0071] Examples 12A-13A, Comparative Examples 21A-22A This is essentially the same as Example 1, except that the amounts of alkyl glycoside, cellulase, and shell powder A are as shown in the table below: Table 8

[0072] Examples 1B~5B It is basically the same as Example 1A, except that shell powder A is replaced with shell powder of other structures, and the specific correspondence is shown in the table below.

[0073] Table 9

[0074] Test Example 1 (1) Pesticide Residue Removal Test: Cherry tomatoes were used as the substrate and dimethoate as the target pesticide. A certain concentration of pesticide was used to contaminate the cherry tomatoes. The contaminated cherry tomatoes were placed in a vegetable basket, which was then fixed in a Midea dishwasher. 13 grams of detergent (i.e., the aforementioned dishwasher powder) were added to the bottom of the dishwasher, and the "Fruit and Vegetable Wash" cycle was started for cleaning. After cleaning, the integrity of the cherry tomato skin was observed, and the pesticide residue on the tomatoes before and after cleaning was tested and compared. The pesticide removal rate (%) was calculated. In the following test, one batch of contaminated cherry tomatoes was used.

[0075] (2) Standard Cleaning Score: Based on the relevant test and evaluation methods of GB / T24692-2023 "Comparative Test Guidelines for the Performance of Surfactants for Household Machine Washing Dishwashers" and GB38383-2019 "Energy Efficiency and Water Efficiency Limits and Grades for Dishwashers", the cleaning degree of standard stains was comprehensively scored. Dishwasher model: Miele-G1222SC standard dishwasher, detergent dosage: 25g. Test procedure: EN / IEC, loading capacity: 12 sets.

[0076] (3) Cleaning power assessment of colored stains: GB38383-2019 "Energy and water efficiency limits and grades for dishwashers" was applied. Dishwasher model: RX600, 13 place settings, including 6 teacups (the contaminants in a single test were coffee or black tea stains). Detergent usage: 31.25g. Test procedure: ECO energy-saving wash. After washing, each teacup was scored from 0 to 5, and the average score was taken. The degree of cleanliness represented by 0-5 points is shown in the table below.

[0077] Table 10

[0078] (4) The foam performance evaluation process is as follows: Add 30 grams of detergent and start the dishwasher. Observe the foam situation at four time points during the main wash stage and determine the level (low foam / medium foam / high foam) according to the standard. The qualified standard is: the highest foam level is not higher than "medium foam". If "high foam" appears, it is considered unqualified, because excessive foam will affect the normal operation of the equipment and the test should be terminated. The pictures and descriptions corresponding to low foam, medium foam and high foam are shown in the table below.

[0079] Table 11

[0080] The test results are as follows: Table 12-1

[0081] Table 12-2

[0082] Table 13

[0083] Table 14

[0084] The data above shows that: Alkyl glycosides, when used in concentrations ranging from 1% to 10%, can achieve good cleaning effects. Comparative examples and contrastive studies show that alkyl glycosides, cellulase, and shell powder exhibit a non-linear relationship with dosage in pesticide residue removal rates. By optimizing the ratio of these three components, a synergistic effect can be achieved, resulting in near-complete removal of pesticide residues. Furthermore, this solution also possesses comprehensive cleaning capabilities for other stains, achieving cleaning levels comparable to commercially available dishwashing powders, or even surpassing them.

[0085] If the structure of shell powder is not appropriate, it can cause certain damage to fruits and vegetables. It can be seen that when the particle size increases to 80μm, it causes physical damage.

[0086] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A soil release composition characterized in that, The composition comprises alkyl glycoside, cellulase and shell powder in a mass ratio of (1-10):(0.5-3):(1-5); the mass percentage of the alkyl glycoside in the detergent composition is 1-10%.

2. The detergent composition of claim 1, wherein, The alkyl glycoside is a product obtained by combining natural fatty alcohol and sugar material by glycoside bond; the natural fatty alcohol has 8-16 carbon atoms.

3. The detergent composition according to claim 1 or 2, characterized in that, The particle size D of the seashell powder 90 The micrometers are 5-20 micrometers in size and the specific surface area is ≥10 m². 2 / g; Preferably, the shell powder has a particle size D90 of 10-15 microns and a specific surface area of 20-35 m 2 / g.

4. The detergent composition of any one of claims 1-3, wherein, The detergent composition further comprises one or more than two combinations of protease, amylase, mannanase and oxidoreductase.

5. The detergent composition of any one of claims 1-4, wherein, The composition further comprises a chelating agent. Preferably, the chelating agent is selected from one or more of hydroxyl carboxylic acid, amino polycarboxylic acid and its salt, and organic phosphonic acid.

6. The detergent composition of any one of claims 1-5, wherein, The composition further comprises a polymer dispersant. Preferably, the polymer dispersant is selected from sulfonated polymer and / or polycarboxylate polymer with a molecular weight of 2000-80000.

7. The detergent composition of any one of claims 1-6, wherein, The detergent composition has a pH value of 8.5-10 when dissolved in water at a mass concentration of 1%, and preferably, the detergent composition further comprises an alkaline auxiliary; the alkaline auxiliary is selected from inorganic alkali and / or organic amine.

8. The detergent composition of any one of claims 1-7, wherein, The composition comprises, by mass percentage: alkyl glycoside 1-10%; cellulase 0.5-3%; other enzymes 1-10%; shell powder 1-5%; alkaline auxiliary 1-30%; chelating agent 1-40%; polymer dispersant 0.1-30%; other auxiliary 0.1-5%; filler the rest; the other auxiliary is selected from one or more of pigment, essence, defoaming agent, pH regulator, corrosion inhibitor and natural extract; the other enzymes are selected from one or more than two combinations of protease, amylase, mannanase and oxidoreductase.

9. A dishwashing powder, characterized by, The composition comprises the detergent composition according to any one of claims 1-8.

10. A washing method characterized by, The composition comprises: using the enzyme-containing detergent composition according to any one of claims 1-8 or the dishwashing powder according to claim 9 to wash a carrier; preferably, the washing device is an automatic dishwashing machine using dynamic pressurized water flow as the main cleaning power; preferably, the carrier comprises fruits and vegetables or tableware; the contaminants on the carrier comprise one or more than two combinations of wax, pesticide residue, tea stain, oil stain, starch stain and protein stain.

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