Liquid fabric detergent with decontamination performance and preparation method thereof

Abstract

The invention relates to a liquid fabric detergent with high-efficiency decontamination performance. The liquid fabric detergent with high-efficiency decontamination performance comprises the following components: anionic surfactant, nonionic surfactant, nano zinc oxide modified dispersant, anti-redeposition agent, auxiliary agent and water. Modified nano zinc oxide is introduced into acrylic copolymer to reduce the agglomeration phenomenon of the nano zinc oxide modified dispersant and improve the dispersibility of the nano zinc oxide modified dispersant in the liquid fabric detergent. Meanwhile, the nano zinc oxide modified dispersant and the anti-redeposition agent have similar groups, and the chain segments of the two have good compatibility, and can form a synergistic effect, so as to achieve a better coating effect on particles, thereby wrapping the fallen stains, avoiding the redeposition of dirt, and being more conducive to the nano zinc oxide to remove the dirt, effectively improving the removal efficiency of the dirt, and thus achieving the rapid removal of the dirt.

Description

Technical Field

[0001] The invention relates to the technical field of daily chemical products, in particular to a liquid fabric detergent with high-efficiency decontamination performance and a preparation method thereof. Background Art

[0002] In recent years, liquid fabric detergents have gradually become the main product for laundry washing due to their advantages such as ease of use, fast dissolution, low temperature requirements, and high washing efficiency. However, as people's standards for quality of life and a good living environment continue to improve, the functional requirements for liquid fabric detergents have become more refined.

[0003] Nano zinc oxide is a commonly used chemical additive and is widely used in many fields. In detergents, zinc oxide can react chemically with pollutants in water, so it can disperse dirt, improve the washing effect, and avoid the redeposition of dirt, thereby improving the efficiency of dirt removal. However, due to the small particle size and high surface activity of nano zinc oxide, nano zinc oxide is prone to agglomeration, and its decontamination performance cannot be fully utilized. Easy agglomeration and poor dispersibility have become key issues restricting the application of nano zinc oxide materials. Therefore, how to prevent the agglomeration of the material and enhance the dispersibility of the components is an urgent problem that needs to be solved.

[0004] Therefore, it is very necessary to develop a new technical solution to solve the problems of existing products and meet the development needs of the current market. Summary of the invention

[0005] Based on this, the present invention provides a liquid fabric detergent with high-efficiency decontamination performance to overcome the shortcomings of the prior art. The technical solution can avoid the agglomeration of the nano zinc oxide dispersant and improve the dispersion effect of the components by introducing nano zinc oxide into the acrylic copolymer, thereby achieving efficient and rapid removal of dirt.

[0006] An object of the present invention is to provide a liquid fabric detergent with high-efficiency decontamination performance, wherein the liquid fabric detergent with high-efficiency decontamination performance has the following components in parts by weight:

[0007] Anionic surfactant 5-30 parts

[0008] 5-10 parts of nonionic surfactant

[0009] Nano zinc oxide modified dispersant 0.5-5 parts

[0010] Anti-redeposition agent 1-4 parts

[0011] 1-15 parts of additives

[0012] 40-85 parts of water;

[0013] Wherein, the nano zinc oxide modified dispersant is obtained by polymerization of modified nano zinc oxide, alkyl acrylate and sodium alkyl acrylate;

[0014] The modified nano zinc oxide is obtained by reacting hydroxylated nano zinc oxide with unsaturated fatty acid.

[0015] Furthermore, the mass ratio of the modified nano zinc oxide, alkyl acrylate and sodium alkyl acrylate is 3-7:8-12:4-6.

[0016] Furthermore, the nonionic surfactant is selected from one or more of EO / PO block polyether, fatty alcohol polyoxyethylene ether, secondary alcohol polyoxyethylene ether, fatty alcohol EO-PO block polyether, and alkyl glycoside.

[0017] Furthermore, the anionic surfactant is selected from one or more of linear alkylbenzene sulfonic acid and its salts, fatty acid salts, alkyl sulfates, ethoxylated fatty alcohol sulfates, α-olefin sulfonates, sulfosuccinates, fatty acid alkyl ester sulfonates and ethoxylated fatty alcohol ether carboxylates.

[0018] Furthermore, the auxiliary agent is selected from one or more of preservatives, pigments, flavors, enzyme preparations, defoamers, solvents, alkaline neutralizers, and inorganic salts.

[0019] Furthermore, the anti-redeposition agent is selected from one or more of sodium polyacrylate, maleic acid acrylic acid copolymer, homopolymer and copolymer of vinyl pyrrolidone.

[0020] Furthermore, the alkaline neutralizer is selected from one or more of an inorganic alkaline neutralizer and an organic alkaline neutralizer.

[0021] Furthermore, the inorganic salt is selected from one or more of halides, carbonates, bicarbonates, formates, acetates, sulfates, nitrates, and citrates.

[0022] The present invention also provides a method for preparing the liquid fabric detergent with high-efficiency decontamination performance, which is characterized by comprising the following steps:

[0023] S1, hydroxylating nano zinc oxide, then soaking it in oleic acid, heating and ultrasonicating it to obtain modified nano zinc oxide;

[0024] S2, free radical copolymerizing the modified nano zinc oxide with alkyl acrylate and sodium alkyl acrylate under the catalysis of BPO to form the nano zinc oxide modified dispersant;

[0025] S3, blending the nano zinc oxide modified dispersant with other ingredients, and stirring evenly to obtain the liquid fabric detergent with high-efficiency decontamination performance.

[0026] Furthermore, in step S1, the heating temperature is 75-85°C.

[0027] Furthermore, in step S2, the temperature of the free radical copolymerization is 70-90°C.

[0028] The present invention has the following beneficial effects:

[0029] The invention firstly performs hydroxylation pretreatment on nano zinc oxide, then reacts with oleic acid, introduces an alkyl chain with a double bond into the nano zinc oxide, and then performs free radical polymerization with acrylic acid monomer, thereby introducing the modified nano zinc oxide into an acrylic copolymer, which can reduce the agglomeration phenomenon of the nano zinc oxide modified dispersant, improve the dispersibility of the nano zinc oxide modified dispersant in the liquid fabric detergent, and enhance the stability of the liquid fabric detergent; at the same time, the nano zinc oxide modified dispersant and the anti-redeposition agent have similar groups, the two have good compatibility, can form a synergistic effect, achieve a better coating effect on the particles, thereby wrapping the detached stains, avoiding the redeposition of the dirt, and being more conducive to the nano zinc oxide to remove the dirt, effectively improving the dirt removal efficiency, thereby achieving rapid dirt removal. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solution of the present invention, the following examples are listed. Unless otherwise stated, the raw materials, reactions and post-treatment methods shown in the examples are common raw materials on the market and technical methods well known to those skilled in the art.

[0031] The words "preferred", "preferably", "more preferably", etc. in the present invention refer to embodiments of the present invention that can provide certain beneficial effects in certain circumstances. However, other embodiments may also be preferred under the same circumstances or other circumstances. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not applicable, nor is it intended to exclude other embodiments from the scope of the present invention.

[0032] It should be understood that, except in any operating examples, or where otherwise indicated, all numbers expressing, for example, the amounts of ingredients used in the specification and claims should be understood to be modified in all cases by the term "about". Therefore, unless indicated to the contrary, the numerical parameters set forth in the following specification and the appended claims are approximate values ​​that vary depending on the desired properties to be obtained by the present invention.

[0033] ETHYLAN CPG7545, EO / PO block polyether, nonionic surfactant, purchased from Nouryon Chemical Co., Ltd.

[0034] AEO-3, fatty alcohol polyoxyethylene ether, fatty alcohol carbon number is 12-14, average ethoxylation degree is 3, non-ionic surfactant, purchased from BASF.

[0035] AEO9, ethoxylated fatty alcohol, average degree of ethoxylation 9, nonionic surfactant.

[0036] AES, ethoxylated fatty alcohol sulfate, fatty alcohol carbon number is 10-14, average ethoxylation degree is 2, anionic surfactant, active content is about 70%.

[0037] Sulfonic acid, linear alkylbenzene sulfonic acid, carbon number is 10-14, anionic surfactant.

[0038] ACUSOL 445N, anti-redeposition agent, molecular weight 4500, purchased from Dow.

[0039] Fragrance, liquid flavor, purchased from Givavdan, brand name is floral and fruity-eucalyptus.

[0040] Blaze Pro 100L, protease, was purchased from Novozymes Enzymes.

[0041] Amrplify Prime 100L, amylase, was purchased from Novozymes Enzymes.

[0042] Preservatives, mixture of methylisothiazolinone and chloromethylisothiazolinone.

[0043] Sodium hydroxide, an alkaline neutralizing agent.

[0044] Sodium chloride, inorganic salt.

[0045] BPO, benzoyl peroxide.

[0046] The ingredients and their contents in the liquid fabric detergents with high-efficiency stain removal performance of Examples 1-3 are shown in Table 1.

[0047]

[0048] The preparation method of the liquid fabric detergent with high-efficiency decontamination performance of Examples 1-3 comprises the following steps:

[0049] S1-1, 5 parts of nano zinc oxide and 100 parts of 30wt% hydrogen peroxide were mixed, reacted at 85°C for 6h, filtered, washed and dried to obtain hydroxylated nano zinc oxide;

[0050] S1-2, adding the hydroxylated zinc oxide to 80 parts of methanol, then adding 10 parts of oleic acid, heating and ultrasonicating at 80° C. for 3 hours, filtering, washing and drying to obtain modified nano zinc oxide;

[0051] S2, 5 parts of the modified nano zinc oxide are mixed evenly with 10 parts of butyl acrylate, 5 parts of sodium methacrylate and 40 parts of ethyl acetate, and 1 part of BPO is added under the protection of nitrogen, and the mixture is reacted at 80° C. for 5 hours. After cooling, the mixture is filtered, washed and dried to obtain the nano zinc oxide modified dispersant;

[0052] S3. Blending the nano zinc oxide modified dispersant with other ingredients according to the above mass fractions, and stirring evenly to obtain the liquid fabric detergent with high-efficiency decontamination performance.

[0053] Comparative Example 1

[0054] The difference between this comparative example and Example 1 is that step S1-2 and step S2 are removed, that is, hydroxylated nano zinc oxide is used to replace the nano zinc oxide modified dispersant, and other components and preparation methods are the same as those in Example 1.

[0055] Comparative Example 2

[0056] The difference between this comparative example and Example 1 is that step S2 is removed, that is, modified nano zinc oxide is used to replace the nano zinc oxide modified dispersant, and other components and preparation methods are the same as those in Example 1.

[0057] Comparative Example 3

[0058] The difference between this comparative example and Example 1 is that ACUSOL 445N is replaced by sodium carboxymethyl cellulose (purchased from Jining Tangyi Chemical Co., Ltd.), and the other ingredients and preparation method are the same as those in Example 1.

[0059] Test Example 1

[0060] The liquid fabric detergents of Example 1 and Comparative Examples 1-3 were tested for their stain removal effects.

[0061] Test method:

[0062] The detergency test was carried out in accordance with GB / T 13174-2008 Determination of detergency and cyclic washing performance of detergents for clothing.

[0063] Among them, the washing process lasts for 15 minutes in the quick wash mode;

[0064] The test results of the ratio of the decontamination values ​​of the liquid fabric detergents of Example 1 and Comparative Examples 1-3 to the decontamination values ​​of standard laundry detergents on carbon black stained cloth, protein stained cloth, and sebum stained cloth are shown in Table 2.

[0065]

[0066] It can be seen from Table 2 that the rapid decontamination effect of the liquid fabric detergent prepared in Example 1 is significantly better than that of Comparative Examples 1-3.

[0067] Test Example 2

[0068] The stain removal performance of the liquid fabric detergents of Example 1 and Comparative Examples 1-3 after storage at high temperature was tested.

[0069] Test method:

[0070] The liquid fabric detergents of Example 1 and Comparative Examples 1-3 were placed in an oven at 45° C. for 3 months. After returning to room temperature, the liquid fabric detergents of Example 1 and Comparative Examples 1-3 were tested for detergency by referring to the test method of Test Example 1.

[0071] The test results are shown in Table 3.

[0072]

[0073] It can be seen from Table 3 that the liquid fabric detergent prepared in Example 1 still has a good decontamination effect after being stored at high temperature for 3 months, while the decontamination effects of Comparative Examples 1-3 are significantly reduced due to reduced stability after long-term high temperature storage.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liquid fabric detergent having a stain removal property, characterized in that: The liquid fabric detergent with decontamination performance is composed of the following components in parts by weight: Anionic surfactant 5-30 parts 5-10 parts of nonionic surfactant Nano zinc oxide modified dispersant 0.5-5 parts Anti-redeposition agent 1-4 parts 1-15 parts of additives 40-85 parts of water; Wherein, the nano zinc oxide modified dispersant is obtained by polymerization of modified nano zinc oxide, alkyl acrylate and sodium alkyl acrylate; The modified nano zinc oxide is obtained by reacting hydroxylated nano zinc oxide with unsaturated fatty acid; The mass ratio of the modified nano zinc oxide, alkyl acrylate and sodium alkyl acrylate is 3-7:8-12:4-6; The unsaturated fatty acid is oleic acid; The anionic surfactant is selected from one or more of linear alkylbenzene sulfonic acid and its salts, fatty acid salts, alkyl sulfates, ethoxylated fatty alcohol sulfates, α-olefin sulfonates, sulfosuccinates, fatty acid alkyl ester sulfonates and ethoxylated fatty alcohol ether carboxylates; The nonionic surfactant is selected from one or more of EO / PO block polyether and fatty alcohol polyoxyethylene ether; The auxiliary agent is selected from one or more of preservatives, pigments, flavors, enzyme preparations, defoamers, solvents, alkaline neutralizers, and inorganic salts; The anti-redeposition agent is sodium polyacrylate; The method for preparing the liquid fabric detergent having a decontamination performance comprises the following steps: S1, hydroxylating nano zinc oxide, then soaking it in oleic acid, heating and ultrasonicating it to obtain modified nano zinc oxide; The heating temperature is 75-85°C; S2, free radical copolymerizing the modified nano zinc oxide with alkyl acrylate and sodium alkyl acrylate under the catalysis of benzoyl peroxide to form the nano zinc oxide modified dispersant; The temperature of the free radical copolymerization is 70-90°C; S3, blending the nano zinc oxide modified dispersant with other ingredients, and stirring evenly to obtain the liquid fabric detergent with decontamination performance.

Images