Environment-friendly antibacterial laundry detergent and preparation method thereof

Abstract

The invention discloses an environment-friendly antibacterial laundry detergent and a preparation method thereof. The environment-friendly antibacterial laundry detergent comprises the following components: limonene, hydrogenated castor oil, fatty alcohol-polyoxyethylene ether, a detergent 6501, alkyl glycoside, potassium cocoate, sodium chloride, a defoaming agent and water. The added limonene has natural bacteriostatic and degreasing effects and forms a synergistic effect after being matched with the surfactant, the decontamination effect is obvious, and meanwhile, the laundry detergent is endowed with an excellent bacteriostatic effect. The selected raw materials do not contain alkylphenol polyoxyethylene ether, the prepared environment-friendly antibacterial laundry detergent is easy to degrade, environment-friendly, small in skin irritation, mild and free of hurting hands, and fresh smell of limonene is reserved on washed clothes.

Description

Technical Field

[0001] The invention belongs to the field of clothing washing, and in particular relates to an environmentally friendly antibacterial laundry detergent and a preparation method thereof. Background Art

[0002] Traditional washing powder is highly alkaline, irritating to the skin, easy to absorb moisture and form lumps, which are difficult to dissolve after lumping. The initial washing powder builders mostly used phosphates, but washing powder containing phosphates can easily lead to eutrophication of water bodies and cause environmental pollution, while the decontamination ability of washing powder without phosphates has decreased. The pH value of laundry detergent is close to neutral, it is mild to the skin, has good solubility, and is easier to rinse and degrade than washing powder. Therefore, since it was launched on the market, laundry detergent has quickly gained favor from consumers and replaced laundry detergent to become a new generation of laundry products. At present, laundry detergent has entered thousands of households. With the increasing attention paid to the ecological environment in my country and the improvement of residents' environmental awareness, laundry detergent is also developing in the direction of green and environmental protection. Moreover, with the improvement of people's living standards and health awareness, people's demand for the antibacterial effect of laundry detergent has increased significantly. Therefore, it is necessary to study an environmentally friendly antibacterial laundry detergent.

[0003] Chinese patent CN 109576078 A discloses a silk fabric laundry detergent and its preparation method, the added alkylphenol polyoxyethylene ether is not easy to degrade; patent CN 110106038 A discloses a disinfecting laundry detergent, the added trichlorohydroxy dipropyl ether (triclosan) is mildly teratogenic; CN 106854496 A discloses a method for preparing a mulberry silk shrinkage-proof color-protecting washing liquid, but the preparation process is cumbersome. CN 109504548 A discloses a laundry detergent for removing oily stains and its production process, which has many process steps and is relatively complicated. Summary of the invention

[0004] In view of the above problems, the present invention provides an environmentally friendly antibacterial laundry detergent and a preparation method thereof. The laundry detergent does not contain alkylphenol polyoxyethylene ether, is easily degradable, is environmentally friendly, and the preparation method is simple and easy to operate. The limonene added in the present invention has natural antibacterial and degreasing effects. After being matched with a surfactant, a synergistic effect is formed, the decontamination effect is obvious, and at the same time, the laundry detergent is endowed with an excellent antibacterial effect.

[0005] The present invention is achieved through the following technical solutions: A method for preparing an environmentally friendly antibacterial laundry detergent comprises the following steps: Mix limonene and hydrogenated castor oil in proportion and stir evenly; add fatty alcohol polyoxyethylene ether, detergent 6501, alkyl glucoside, potassium cocoate and defoamer in proportion to the above system, stir evenly until transparent, then add sodium chloride, make up water, mix and stir evenly into a transparent liquid, and obtain the environmentally friendly antibacterial laundry detergent; The hydrogenated castor oil is one or more of PEG40 and PEG60; The fatty alcohol polyoxyethylene ether has a general formula of RO(CH2CH2O)nH, where R is a saturated or unsaturated C12-18 hydrocarbon group, including a straight-chain hydrocarbon group and a branched hydrocarbon group, and n=6-20; The general formula of the alkyl glycoside is RO(G)n, R is a C12-16 alkyl group, G is a glucose unit, and n=1.1-3; To further achieve the purpose of the present invention, preferably, the fatty alcohol polyoxyethylene ether is one or more of AEO9, JFC and Pingpingjia; Preferably, the alkyl glycoside is one or more of APG0810 and APG0814; Preferably, the defoaming agent is a polyether or polyether-modified polysiloxane defoaming agent.

[0006] Beneficial effects of the present invention: The environmentally friendly antibacterial laundry detergent prepared by the invention has good decontamination and antibacterial effects, is easily degradable, is environmentally friendly, and has a simple preparation method, and only requires uniform stirring. DETAILED DESCRIPTION

[0007] The present invention is further described below by way of examples. It should be noted that the examples do not limit the scope of protection claimed for the present invention.

[0008] Example 1: 2 g of limonene and 1 g of PEG60 were mixed and stirred evenly, and then 8 g of AEO9, 2 g of detergent 6501, 7 g of APG0810, 2 g of potassium cocoate, and 0.05 g of polyether-modified polysiloxane defoamer were added and stirred evenly until transparent, and then 0.1 g of sodium chloride and 78 g of water were added and mixed and stirred evenly into a transparent liquid to obtain the environmentally friendly antibacterial laundry detergent; Example 2: 1 g of limonene and 0.5 g of PEG60 were mixed and stirred evenly, and 8 g of AEO9, 2 g of detergent 6501, 7 g of APG0810, 2 g of potassium cocoate, and 0.05 g of polyether-modified polysiloxane defoamer were added, and stirred evenly until transparent, and then 0.1 g of sodium chloride and 79 g of water were added, and the mixture was mixed and stirred evenly into a transparent liquid to obtain the environmentally friendly antibacterial laundry detergent; Comparative Example 1: 1 g PEG60, 8 g AEO9, 2 g detergent 6501, 7 g APG0810, 2 g potassium cocoate, and 0.05 g polyether modified polysiloxane defoamer were stirred evenly until transparent, and then 0.1 g sodium chloride and 80 g water were added, and the mixture was stirred evenly into a transparent liquid to obtain the environmentally friendly antibacterial laundry detergent.

[0009] Performance testing method: Decontamination performance test: The test was carried out in accordance with GB / T 13174-2021 "Determination of Detergent Power and Circulation Washing Performance of Detergents for Clothing Materials". The detergent ratio is the ratio of the sample detergent value to the detergent value of the standard laundry detergent in the national standard. The standard dirty cloth is the dirty cloth specified in the standard (JB-01 carbon black oily cloth, JB-02 protein-stained cloth, JB-03 sebum-stained cloth). The detergency test concentration is 0.2% and the standard laundry detergent test concentration is 0.2%. The test results are shown in Table 1.

[0010] Table 1 Detergent effect of laundry detergent Test samples Decontamination ratio (JB-01) Decontamination ratio (JB-02) Decontamination ratio (JB-03) Example 1 1.65 1.50 1.48 Example 2 1.23 1.31 1.27 Comparative Example 1 1.12 1.09 1.15 It can be seen from Table 1 that the laundry detergent prepared by the present invention has a strong detergency, and the added limonene forms a synergistic effect after being compounded with the surfactant, thereby enhancing the detergency effect.

[0011] Antibacterial performance test: The antibacterial ability test was carried out in accordance with QB / T2738-2023 "Evaluation method for antibacterial and antibacterial effects of daily chemical products". The laundry detergent obtained from each group of samples was diluted 100 times and the action time was 20 minutes. The antibacterial rates of each group of samples against Escherichia coli and Staphylococcus aureus are shown in Table 2.

[0012] Table 2 Antibacterial effect of laundry detergent Test samples Escherichia coli inhibition rate% Staphylococcus aureus inhibition rate% Example 1 88 82 Example 2 75 71 Comparative Example 1 31 25 It can be seen from Table 2 that the antibacterial rate of Comparative Example 1 is significantly lower than that of Example 1 and Example 2, indicating that limonene has a good antibacterial effect; the antibacterial rate of Example 1 is higher than that of Example 2, indicating that increasing the amount of limonene increases the antibacterial effect.

[0013] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. It should be pointed out that those skilled in the art are capable of modifying the technical solutions described in the embodiments or making equivalent replacements for some of the technical features therein. Such modifications or replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An environmentally friendly antibacterial laundry detergent, characterized in that: The invention comprises the following components in parts by weight: 1-4 parts of limonene, 0.5-2 parts of hydrogenated castor oil, 5-15 parts of fatty alcohol polyoxyethylene ether, 5-10 parts of detergent 6501, 5-10 parts of alkyl glycoside, 1-5 parts of potassium cocoate, 0.1-0.3 parts of sodium chloride, 0.02-0.1 parts of defoaming agent and 50-80 parts of water.

2. The environmentally friendly antibacterial laundry detergent according to claim 1, characterized in that: The hydrogenated castor oil is one or more of PEG40 and PEG60.

3. The environmentally friendly antibacterial laundry detergent according to claim 1, characterized in that: The general formula of the fatty alcohol polyoxyethylene ether is RO(CH2CH2O)nH, R is a saturated or unsaturated C12-18 hydrocarbon group, including a straight-chain hydrocarbon group and a branched hydrocarbon group, and n=6-20.

4. The environmentally friendly antibacterial laundry detergent according to claim 1, characterized in that: The general formula of the alkyl glycoside is RO(G)n, R is a C12-18 saturated straight-chain alkyl, G is a glucose unit, and n=1-3.

5. The environmentally friendly antibacterial laundry detergent according to claim 1, characterized in that: The defoaming agent is a silicone, polyether or polyether-modified polysiloxane defoaming agent.

6. The method for preparing the environmentally friendly antibacterial laundry detergent according to claim 1, characterized in that: Mix limonene and hydrogenated castor oil in proportion and stir evenly; add fatty alcohol polyoxyethylene ether, detergent 6501, alkyl glucoside, potassium cocoate and defoamer in proportion to the above system, stir evenly until transparent, then add sodium chloride, make up water, mix and stir evenly into a transparent liquid, and obtain the environmentally friendly antibacterial laundry detergent.