A green and environment-friendly multi-effect school uniform special dipping powder composition and application thereof

Abstract

The present application belongs to the technical field of detergent, and particularly relates to a green and environment-friendly multi-effect school uniform special dipping powder composition and application thereof. The green and environment-friendly multi-effect school uniform special dipping powder composition provided by the present application comprises the following components and mass percentages thereof: 30-60% of sodium percarbonate, 5-20% of anhydrous sodium metasilicate, 0.5-8% of non-ionic surfactant, 0.5-8% of zwitterionic surfactant, 0.5-5% of anionic surfactant, 0.2-0.5% of anti-redeposition agent, 0.2-1% of composite chelating agent, 0.6-4% of composite enzyme preparation, 0.05-8% of auxiliary agent, and the rest is sodium carbonate, and the sum of the mass percentages of the above components is 100%. The present application can be used without high-temperature dissolution of more than 60 DEG C or even 80 DEG C, can effectively protect the fabric, prevent the fabric from being damaged, and achieve the protection of the fabric while achieving the strong cleaning of stains, efficient whitening, dry deodorization and prevention of excessive cleaning.

Description

Technical Field

[0001] This invention belongs to the field of detergent technology, specifically relating to a green and environmentally friendly multi-effect school uniform impregnation powder composition and its application. Background Technology

[0002] School uniforms, as functional clothing worn frequently by students, have unique cleaning needs due to specific scenarios, which forms the fundamental motivation for developing specialized cleaning agents. In terms of material characteristics, domestic school uniforms are mainly made of cotton blends. These fabrics are prone to fiber damage and stiffening after frequent washing, and the surfactant concentrations in ordinary detergents do not take into account the delicate needs of student clothing. Regarding stain types, school uniforms face a "complex pollution challenge"—in daily life, school uniforms are worn frequently by students. Modern Chinese school education places greater emphasis on students' physical fitness, conducting a series of exercises and sports activities to encourage student participation. Inevitably, various stains adhere to school uniforms, such as ink stains from the classroom, crystallized sweat after exercise, grease stains from canteen meals, and grass and mud from outdoor activities, forming a multi-faceted stain system of proteins, grease, and pigments. The single-staining components of ordinary laundry detergents are insufficient to comprehensively address these issues. Accompanying sweat stains are unpleasant odors and mildew spots and smells caused by infrequent washing.

[0003] Traditional detergents have many problems when cleaning school uniforms, resulting in unsatisfactory cleaning effects and difficulty in removing stubborn stains. For example, Chinese patent application CN 111944615 A ​​discloses a novel laundry detergent and its preparation method, made from the following raw materials in parts by weight: 8-15 parts anionic surfactant, 2-8 parts nonionic surfactant, 10-20 parts sodium silicate, 3-5 parts soda ash, 4-6 parts sodium sulfate, 10-20 parts peroxide, 5-7 parts sodium percarbonate, 2-6 parts organic additives, 5-9 parts enzyme preparation, 3-7 parts slurry conditioner, and 20-50 parts deionized water. The effectiveness of this laundry detergent in washing school uniforms is unknown. Moreover, some traditional detergents can damage clothing, affecting the lifespan of school uniforms and failing to meet the growing demand for school uniform cleaning. Therefore, the development of a multifunctional and highly efficient detergent specifically for school uniforms is urgently needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a green and environmentally friendly multi-effect school uniform impregnation powder composition and its application. This invention eliminates the need for high-temperature dissolution (above 60°C or even 80°C), effectively protecting fabrics and preventing damage. While powerfully cleaning stains, effectively whitening, and deodorizing, this invention also protects fabrics, preventing potential damage from excessive cleaning.

[0005] The technical solution of this invention is: A green and environmentally friendly multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: sodium percarbonate 30-60%, anhydrous sodium metasilicate 5-20%, nonionic surfactant 0.5-8%, amphoteric surfactant 0.5-8%, anionic surfactant 0.5%-5%, anti-redeposition agent 0.2-0.5%, composite chelating agent 0.2-1%, composite enzyme preparation 0.6-4%, auxiliary agent 0.05-8%, and the balance being sodium carbonate. The sum of the mass percentages of the above components is 100%.

[0006] Furthermore, the green and environmentally friendly multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: 50% sodium percarbonate, 10% anhydrous sodium metasilicate, 5% nonionic surfactant, 2% amphoteric surfactant, 2% anionic surfactant, 0.5% anti-redeposition agent, 1% composite chelating agent, 3% composite enzyme preparation, 0.1% auxiliary agent, and 26.4% sodium carbonate.

[0007] Furthermore, the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; and the anionic surfactant is sodium dodecyl sulfate.

[0008] In this invention, sodium dodecyl sulfate (K12) can not only rapidly penetrate the odor gaps in fabrics by reducing surface tension, but also embed oil stains through its lipophilic group (C12 alkyl) and hydrophilic group (-OSO3). - It pulls oil droplets to disperse in water, breaking down stains; after adsorbing dirt, it imparts a negative charge, preventing redeposition through like-particle repulsion; its resistance to calcium and magnesium ions is superior to that of saponins and soap powder. K12 also works synergistically with sodium percarbonate to prevent yellowing. K12 micelles encapsulate the H2O2 decomposed from sodium percarbonate, penetrating deep into the fiber to oxidize yellowing precursors and prevent calcium soap precipitation, effectively reducing the yellowing base. Protein stains (containing tryptophan and tyrosine) are further decomposed into soluble small molecules by OH oxidation of quinone chromophores to break conjugated double bonds, and then further decomposed into soluble small molecules by calcium soap conversion into peroxyacids.

[0009] This invention utilizes the amphoteric surfactant cocamidopropyl betaine (CAB-35) to neutralize anionic charges, reduce protein fiber adsorption, and decrease the protonated amino-NH groups on the protein fiber surface. 3+ With K12 anion sulfate -OSO3 - Through electrostatic attraction, an ion-pair complex is formed, consisting of the sulfate group of K12 and -OSO3. -K12 forms hydrogen bonds with fiber peptide bonds, thereby damaging protein fibers. When the quaternary ammonium cationic group of the zwitterionic surfactant CAB-35 combines with the sulfate ions of K12 to form a neutral ion pair, it can shield the negative charge of K12, blocking the binding of K12 to the positively charged groups of the fiber. The cationic end of CAB-35 preferentially occupies the negative potential point of the protein fiber, while the anionic end is far away from the fiber, forming a spatial barrier to prevent K12 from approaching. In this invention, CAB-35 actively and specifically prevents the adsorption and damage of K12 to protein fibers through a dual mechanism of "charge neutralization" and "steric hindrance." While maintaining the good detergency effect of K12, it avoids fiber damage that leads to fabric deformation, pilling, fuzzing, loss of luster, and hardening of the fabric's hand feel.

[0010] This invention uses a compound nonionic surfactant, fatty alcohol polyoxyethylene ether (AEO-7), to form mixed micelles, reducing dye stripping rate. Cationic dyes may detach from fibers due to the combination of cationic dyes with the anionic groups of K12 to form insoluble precipitates. When the hydrophobic chains (R) of K12 and AEO-7 intertwine to form core-shell mixed micelles, the negative charge of K12 is shielded. The polyoxyethylene chains of AEO-7 bind to water molecules through hydrogen bonds to form a dense hydration layer on the micelle surface, thereby blocking dye molecules from contacting the micelle core and reducing dye solubilization. Furthermore, AEO-7 preferentially adsorbs onto the fiber surface to form a neutral protective film, preventing K12 from directly contacting the dye on the fiber.

[0011] K12 comes in three forms: powder, liquid, and needle-like. This invention uses needle-like K12, which provides a significant visual improvement over the monotonous powder form.

[0012] Traditional school uniform impregnation powders often contain sodium tripolyphosphate and zeolite. The excessive use of sodium tripolyphosphate leads to eutrophication in water systems, resulting in high phosphorus levels and low oxygen levels. Zeolite has poor water softening ability, is insoluble in water, and can deposit on fabrics to form dirt. Excessive use can also cause sewer blockages and increased sludge. In this invention, anhydrous sodium metasilicate has a high buffering capacity for the pH of washing water, good compatibility with other additives, and is phosphorus-free, thus replacing sodium tripolyphosphate and zeolite and reducing environmental pollution.

[0013] In this invention, the anti-redeposition agent 445NG is a polyacrylic acid homopolymer that can inhibit the secondary precipitation of inorganic substances such as calcium carbonate on fabrics by improving crystal growth and dispersion properties, thereby improving the washing effect.

[0014] Furthermore, the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 0.5-1:2-3:2-3:0.5-1:0.5-1.

[0015] Furthermore, the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1.

[0016] Furthermore, the compound enzyme preparation is composed of xylanase, protease, lipase, amylase and cellulase in a mass ratio of 0.2-0.5:2-3:3-5:0.5-1:0.5-1.

[0017] Furthermore, the compound enzyme preparation is composed of xylanase, protease, lipase, amylase and cellulase in a mass ratio of 0.5:2:3:1:1.

[0018] Furthermore, the protease is an alkaline protease, the lipase is an alkaline lipase, the amylase is an alkaline amylase, and the cellulase is an alkaline cellulase.

[0019] Furthermore, the additive is composed of a deodorizing and bactericidal agent and an acidic odor absorbent in a mass ratio of 1-2:0.2-0.5.

[0020] Furthermore, the additive is composed of a deodorizing and bactericidal agent and an acidic odor absorber in a mass ratio of 1:0.5.

[0021] Furthermore, the deodorizing and bactericidal agent is zinc ricinoleate; the acidic odor absorber is tromethamine.

[0022] In this invention, tromethamine is widely used in the medical field, but it can also neutralize volatile acidic substances (such as aldehydes and carboxylic acids) including body odor, foot odor, aging odor, halitosis, pet odor, etc., with a gentler removal effect, which is not afraid of sensitive skin. At the same time, it can also remove harmful components such as formaldehyde from new clothes.

[0023] In this invention, zinc ricinoleate is a metallic soap compound formed by the combination of ricinoleic acid and zinc ions. Its core value lies in its efficient adsorption and neutralization of various odors, especially in suppressing body odor and sweat odor. Its adsorption capacity for thiols (onion / garlic odor), amines (fishy odor), and short-chain fatty acids (sweat odor) is 3-5 times that of activated carbon. The activated zinc atoms in zinc ricinoleate can form strong hydrogen bonds with nitrogen and sulfur atoms in odors, as well as "quasi-chelation" to generate complexes with heavier molecules and weaker vapor pressures. This effect deactivates odor molecules, thereby eliminating odor. Furthermore, zinc ricinoleate can form a hydrophobic film on the surface of fabrics / skin through irreversible chemical reactions such as chemical bonding, redox reactions, and salt formation with odor factors. This film is washable, abrasion-resistant, and can remain on school uniforms for a long time, providing continuous protection. It is non-irritating and non-allergenic to the human body.

[0024] The green and environmentally friendly multi-effect school uniform impregnation powder composition provided by this invention only requires soaking in hot water at 50 to 60°C for one hour, without the need for dissolving at temperatures exceeding 60°C or even 80°C, effectively protecting the fabric and preventing damage. This invention utilizes a compound of sodium percarbonate and anhydrous sodium metasilicate. The anhydrous sodium metasilicate provides a strongly alkaline environment, promoting the conversion of H2O2 into highly reactive hydrogen peroxide anions for efficient bleaching. The silicate forms a buffer system to counteract the pH effect of acidic stains such as food residue and sweat, and strongly chelates calcium, magnesium, and iron ions, preventing the catalytic decomposition of H2O2 by metal ions and inhibiting iron ions from causing yellowing of the fabric. The compound of AEO-7, CAB-35, and K12 achieves a powerful stain removal effect, and the addition of a complex enzyme preparation enhances the stain removal effect. The combination of zinc ricinoleate and tromethamine reacts chemically with volatile substances such as fatty acids, esters, alcohols, amines, and ketones produced by the human body to generate odorless and non-toxic substances, thereby eliminating odors and leaving them on the surface of school uniforms to prolong the deodorizing effect.

[0025] Another objective of this invention is to provide the application of the aforementioned green and environmentally friendly multi-effect school uniform impregnation powder composition in the preparation of daily chemical products.

[0026] Furthermore, the daily chemical products include special school uniform cleaners, multi-functional laundry products, and laundry aids.

[0027] Compared with the prior art, the present invention has the following advantages: (1) When using the product of the present invention, it is only necessary to soak it in hot water at 50 to 60°C for one hour. It does not need to be dissolved at a high temperature of 60°C or even 80°C. This can effectively protect the fabric and prevent the fabric from being damaged.

[0028] (2) The product of the present invention can effectively clean stains, whiten efficiently, and dry and deodorize while protecting fabrics and preventing fabric damage that may occur when over-cleaning.

[0029] (3) The product of this invention can prevent fabrics from yellowing and effectively reduce the yellowing base.

[0030] (4) This invention can reduce the dye stripping rate and balance the relationship between "stain removal" and "color retention" while cleaning efficiently, so that the color of clothing lasts longer.

[0031] (5) The product of this invention is green and environmentally friendly, contains no phosphorus, and will not cause eutrophication of water systems with high phosphorus content and low oxygen content. Attached Figure Description

[0032] Figure 1 Gannz whiteness test results of dirty school uniforms before cleaning with the school uniform-specific impregnation powder composition prepared in Example 2; Figure 2The image shows the Ganz whiteness test results after cleaning dirty school uniforms using the school uniform-specific impregnation powder composition prepared in Example 2; Figure 3 Comparison images of dirty school uniforms before and after cleaning with the school uniform-specific impregnation powder composition prepared in Example 2 (wherein, Figure 3 The image on the left shows a dirty school uniform before cleaning, without using the school uniform-specific impregnation powder composition prepared in Example 2. Figure 3 (The image on the right shows a dirty school uniform after cleaning using the school uniform-specific impregnation powder composition prepared in Example 2). Figure 4 Comparison of dirty socks before and after cleaning with the school uniform-specific impregnation powder composition prepared in Example 2 (wherein, Figure 4 The image on the left shows dirty socks before cleaning, without using the school uniform-specific impregnation powder composition prepared in Example 2. Figure 4 The image on the right shows dirty socks after cleaning using the school uniform-specific impregnation powder composition prepared in Example 2. Detailed Implementation

[0033] The present invention will be further described below through specific embodiments, but this is not a limitation of the present invention. Those skilled in the art can make various modifications or improvements based on the basic idea of ​​the present invention, but as long as they do not depart from the basic idea of ​​the present invention, they are all within the scope of the present invention.

[0034] Unless otherwise specified, all raw materials used in this invention are commercially available. For example, the anti-redeposition agent 445NG is Dow's ACUSOL 445NG; polyaspartic acid is polyaspartic acid powder purchased from Hunan Daiweier New Materials Co., Ltd.; alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase were all purchased from Ningxia Xiasheng Industrial Group Co., Ltd., of which alkaline protease (model: GDG-3336), alkaline lipase (model: GFY-3310), alkaline amylase (model: GFY-3309), and alkaline cellulase (model: GFY-3311); xylanase was purchased from Guangzhou Tianwu Bioengineering Co., Ltd.

[0035] Example 1: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: sodium percarbonate 40%, anhydrous sodium metasilicate 10%, nonionic surfactant 5%, amphoteric surfactant 2%, anionic surfactant 2%, anti-redeposition agent 0.5%, composite chelating agent 1%, composite enzyme preparation 3%, auxiliary agent 0.1%, and sodium carbonate 36.4%; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0036] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is as follows: S1. Add sodium percarbonate to the reaction vessel and stir until homogeneous; S2. Add anhydrous sodium metasilicate to the reaction vessel and stir until homogeneous; S3. Add the nonionic surfactant to the reaction vessel and stir until homogeneous; S4. Add the zwitterionic surfactant to the reaction vessel and stir until homogeneous; S5. Add the anionic surfactant to the reactor and stir until homogeneous; S6. Add the anti-redeposition agent to the reactor and stir until homogeneous; S7. Add the composite chelating agent to the reaction vessel and stir until homogeneous; S8. Add the compound enzyme preparation to the reaction vessel and stir until homogeneous; S9 Add the additives to the reactor and stir until homogeneous; S10 adds the remaining sodium carbonate to the reactor and stirs until homogeneous.

[0037] Example 2: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: 50% sodium percarbonate, 10% anhydrous sodium metasilicate, 5% nonionic surfactant, 2% amphoteric surfactant, 2% anionic surfactant, 0.5% anti-redeposition agent, 1% composite chelating agent, 3% composite enzyme preparation, 0.1% auxiliaries, and 26.4% sodium carbonate; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0038] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is similar to that in Example 1.

[0039] Example 3: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: sodium percarbonate 60%, anhydrous sodium metasilicate 10%, nonionic surfactant 5%, amphoteric surfactant 2%, anionic surfactant 2%, anti-redeposition agent 0.5%, composite chelating agent 1%, composite enzyme preparation 3%, auxiliary agent 0.1%, and sodium carbonate 16.4%; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0040] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is similar to that in Example 1.

[0041] Example 4: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: 50% sodium percarbonate, 10% anhydrous sodium metasilicate, 1% nonionic surfactant, 2% amphoteric surfactant, 2% anionic surfactant, 0.5% anti-redeposition agent, 1% composite chelating agent, 3% composite enzyme preparation, 0.1% auxiliary agent, and 30.4% sodium carbonate; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0042] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is similar to that in Example 1.

[0043] Example 5: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: 50% sodium percarbonate, 10% anhydrous sodium metasilicate, 5% nonionic surfactant, 0.5% amphoteric surfactant, 2% anionic surfactant, 0.5% anti-redeposition agent, 1% composite chelating agent, 3% composite enzyme preparation, 0.1% auxiliary agent, and 27.9% sodium carbonate; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0044] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is similar to that in Example 1.

[0045] Example 6: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: 50% sodium percarbonate, 10% anhydrous sodium metasilicate, 5% nonionic surfactant, 2% amphoteric surfactant, 0.5% anionic surfactant, 0.5% anti-redeposition agent, 1% composite chelating agent, 3% composite enzyme preparation, 0.1% auxiliaries, and 27.9% sodium carbonate; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0046] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is similar to that in Example 1.

[0047] Example 7: A green and environmentally friendly multi-effect school uniform impregnation powder composition and its preparation method The environmentally friendly, multi-effect school uniform impregnation powder composition comprises the following components and their mass percentages: sodium percarbonate 50%, anhydrous sodium metasilicate 5%, nonionic surfactant 5%, amphoteric surfactant 2%, anionic surfactant 2%, anti-redeposition agent 0.5%, composite chelating agent 1%, composite enzyme preparation 3%, auxiliary agent 0.1%, and sodium carbonate 31.4%; the nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; the anionic surfactant is sodium dodecyl sulfate; and the anti-redeposition agent is ACUSOL. 445NG; the composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 1:2:2:1:1; the composite enzyme preparation is composed of xylanase, alkaline protease, alkaline lipase, alkaline amylase, and alkaline cellulase in a mass ratio of 0.5:2:3:1:1; the adjuvant is composed of zinc ricinoleate and tromethamine in a mass ratio of 1:0.5.

[0048] The preparation method of the green and environmentally friendly multi-effect school uniform impregnation powder composition is similar to that in Example 1.

[0049] Comparative Example 1: A school uniform-specific impregnation powder composition and its preparation method The composition and preparation method of the school uniform-specific impregnation powder composition are similar to those in Example 2. The difference from Example 2 is that sodium percarbonate is not added, but sodium perborate is added in equal amounts, that is, sodium percarbonate is replaced with sodium perborate.

[0050] Comparative Example 2: A school uniform-specific impregnation powder composition and its preparation method The composition and preparation method of the school uniform impregnation powder composition are similar to those in Example 2. The difference from Example 2 is that the nonionic surfactant fatty alcohol polyoxyethylene ether AEO-7 is not added, and the nonionic surfactant fatty alcohol polyoxyethylene ether AEO-3 is added in equal amounts, that is, fatty alcohol polyoxyethylene ether AEO-7 is replaced with fatty alcohol polyoxyethylene ether AEO-3.

[0051] Comparative Example 3: A school uniform-specific impregnation powder composition and its preparation method The composition and preparation method of the school uniform impregnation powder composition are similar to those in Example 2. The difference from Example 2 is that the amphoteric surfactant cocamidopropyl betaine is not added, and lauramidopropyl betaine is added in equal amounts, that is, cocamidopropyl betaine is replaced with lauramidopropyl betaine.

[0052] Comparative Example 4: A school uniform-specific impregnation powder composition and its preparation method The composition and preparation method of the school uniform impregnation powder composition are similar to those in Example 2. The difference from Example 2 is that the anionic surfactant sodium dodecyl sulfate is not added, and sodium octyl decyl sulfate ODS-35 is added in equal amounts, that is, sodium dodecyl sulfate is replaced with sodium octyl decyl sulfate ODS-35.

[0053] Comparative Example 5: A school uniform-specific impregnation powder composition and its preparation method The composition and preparation method of the school uniform impregnation powder composition are similar to those in Example 2. The difference from Example 2 is that the mass percentage of the zwitterionic surfactant is changed from 2% to 0%, the mass percentage of the nonionic surfactant is changed from 5% to 6.4%, and the mass percentage of the anionic surfactant is changed from 2% to 2.6%.

[0054] Test Example 1: Detergent and Bleaching Performance Test 1. Detergent cleaning power test: All school uniforms used in the test conformed to the national standard GB / T 31888-2015 "School Uniforms for Primary and Secondary School Students," and this standard was used as the benchmark. The immersion container used in the test was a 22-liter plastic water bucket. The specific test method is as follows: 1) Creating stains: Apply milk, soy sauce, artificial sweat (pH: 6.5), butter, lard, mud, and black ink evenly to each school uniform using a soft rubber brush. The area of ​​each contaminant should be 4 cm². 3The school uniform was left to stand at room temperature for 24 hours and photographed to record the location and appearance of the stains inside a standard light source box model D65 (TL84 standard light source, color temperature: 4000K, power: 18W).

[0055] 2) Soaking school uniforms: Add the soiled school uniforms to a plastic bucket, add the school uniform soaking powder composition at a ratio of 1:50 to 60℃ water, soak for 1 hour, rinse and dry.

[0056] 3) Stain removal power rating: Check each school uniform for stains or residue. Compare the original stain locations with photos taken before soaking in a standard light source box (model T65, TL84 standard light source, color temperature: 4000K, power: 18W) to check the remaining stains.

[0057] Scoring method: Total stain removal score / Total number of stains.

[0058] Table 1 Scoring Criteria for Single Stain Removal

[0059] 2. Bleaching performance test: All school uniforms used in the test conformed to the national standard GB / T 31888-2015 "School Uniforms for Primary and Secondary School Students," and this standard was used as the benchmark. The uniforms had been worn for more than two years and were yellowed, grayish, and dull (average whiteness approximately 60). The immersion container used for the test was a 22-liter plastic bucket. The specific testing method is as follows: 1) Soaking school uniforms: Add the school uniforms that have turned yellowish, grayish and dull (average whiteness of about 60) to a plastic bucket of water. Add the school uniform special soaking powder composition at a ratio of 1:50 to 60℃ water, soak for 1 hour, rinse and dry.

[0060] 2) Bleaching performance rating: The average whiteness of each school uniform after bleaching and drying was tested using a fluorescent whiteness meter inside a standard light source box model T65 (TL84 standard light source, color temperature: 4000K, power: 18W).

[0061] The results of the detergency test and bleaching performance test are shown in Table 2.

[0062] Table 2 Results of detergency and bleaching performance tests

[0063] As shown in Table 2, the school uniform-specific impregnation powder compositions prepared in Examples 1-7 of this invention have good stain removal and whitening effects, with Example 2 showing the best effect and being the optimal embodiment of this invention. Compared with Comparative Examples 1-5, the school uniform-specific impregnation powder composition prepared in Example 2 of this invention has superior and more efficient whitening and stain removal capabilities.

[0064] The Ganz whiteness test results of the dirty school uniform before cleaning with the school uniform-specific impregnation powder composition prepared in Example 2 are shown in the figure. Figure 1 As shown in the figure. The Ganz whiteness test results after cleaning dirty school uniforms using the school uniform-specific impregnation powder composition prepared in Example 2 are shown in the figure. Figure 2 As shown. By Figure 1 It can be seen that the Ganz whiteness test result (Wg) of the school uniform before cleaning with the school uniform-specific impregnation powder composition prepared in Example 2 was 62.29, while that obtained by using the Ganz whiteness test result was much higher. Figure 2 As can be seen, the Ganz whiteness test result (Wg) of the school uniform-specific impregnation powder composition prepared in Example 2 after cleaning the soiled school uniform was 98.66. Figure 1 , Figure 2 As can be seen, the Ganz whiteness test result (Wg) of the school uniform-specific impregnation powder composition prepared in Example 2 of this invention significantly improved after cleaning dirty school uniforms. A comparison image of the dirty school uniforms before and after cleaning with the school uniform-specific impregnation powder composition prepared in Example 2 is shown below. Figure 3 As shown, where, Figure 3 The image on the left shows a dirty school uniform before cleaning, without using the school uniform-specific impregnation powder composition prepared in Example 2. Figure 3 The image on the right shows a dirty school uniform after cleaning using the school uniform-specific impregnation powder composition prepared in Example 2. Figure 3 It can be seen that the whiteness of the dirty school uniforms was significantly improved after cleaning with the school uniform-specific impregnation powder composition prepared in Example 2. Therefore, the school uniform-specific impregnation powder composition of the present invention has a highly efficient whitening effect.

[0065] In addition, referring to the above-described stain-removing power test method, the stain-removing effect of the school uniform-specific impregnation powder composition prepared in Example 2 of this invention on dirty socks was tested. A comparison image of dirty socks before and after cleaning with the school uniform-specific impregnation powder composition prepared in Example 2 is shown below. Figure 4 As shown, where, Figure 4 The image on the left shows dirty socks before cleaning, without using the school uniform-specific impregnation powder composition prepared in Example 2. Figure 4 The image on the right shows dirty socks after cleaning with the school uniform-specific impregnation powder composition prepared in Example 2. Figure 4 As can be seen, the stains on the school uniform-specific impregnation powder composition prepared in Example 2 of this invention were completely removed after cleaning, leaving no trace. This demonstrates that the present invention has excellent stain removal capabilities.

Claims

1. A green and environmentally friendly multi-effect school uniform impregnation powder composition, characterized in that, It includes the following components and their mass percentages: sodium percarbonate 30-60%, anhydrous sodium metasilicate 5-20%, nonionic surfactant 0.5-8%, amphoteric surfactant 0.5-8%, anionic surfactant 0.5%-5%, anti-redeposition agent 0.2-0.5%, compound chelating agent 0.2-1%, compound enzyme preparation 0.6-4%, auxiliary agent 0.05-8%, and the balance being sodium carbonate. The sum of the mass percentages of the above components is 100%.

2. The green and environmentally friendly multi-effect school uniform impregnation powder composition according to claim 1, characterized in that, It includes the following components and their mass percentages: sodium percarbonate 50%, anhydrous sodium metasilicate 10%, nonionic surfactant 5%, amphoteric surfactant 2%, anionic surfactant 2%, anti-redeposition agent 0.5%, compound chelating agent 1%, compound enzyme preparation 3%, auxiliary agent 0.1%, and sodium carbonate 26.4%.

3. The green and environmentally friendly multi-effect school uniform impregnation powder composition according to claim 1 or 2, characterized in that, The nonionic surfactant is fatty alcohol polyoxyethylene ether AEO-7; the amphoteric surfactant is cocamidopropyl betaine; and the anionic surfactant is sodium dodecyl sulfate.

4. The green and environmentally friendly multi-effect school uniform impregnation powder composition according to claim 1 or 2, characterized in that, The composite chelating agent is composed of sodium gluconate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, polyaspartic acid, and sodium citrate in a mass ratio of 0.5-1:2-3:2-3:0.5-1:0.5-1.

5. The green and environmentally friendly multi-effect school uniform impregnation powder composition according to claim 1 or 2, characterized in that, The compound enzyme preparation is composed of xylanase, protease, lipase, amylase and cellulase in a mass ratio of 0.2-0.5:2-3:3-5:0.5-1:0.5-1.

6. The green and environmentally friendly multi-effect school uniform impregnation powder composition according to claim 1 or 2, characterized in that, The additive is composed of a deodorizing and bactericidal agent and an acidic odor absorber in a mass ratio of 1-2:0.2-0.

5.

7. The green and environmentally friendly multi-effect school uniform impregnation powder composition according to claim 6, characterized in that, The deodorizing and bactericidal agent is zinc ricinoleate; the acidic odor absorber is tromethamine.

8. The application of the green and environmentally friendly multi-effect school uniform impregnation powder composition as described in any one of claims 1-7 in the preparation of daily chemical products.

9. The application of the green and environmentally friendly multi-effect school uniform impregnation powder composition as described in claim 8 in the preparation of daily chemical products, characterized in that, The daily chemical products include special school uniform cleaners, multi-functional laundry products, and laundry aids.

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