Environment-friendly detergent concentrated solution and preparation method thereof

Abstract

The invention relates to the technical field of detergents, in particular to an environment-friendly detergent concentrated solution and a preparation method thereof. The environment-friendly detergent concentrated solution is prepared from the following components in percentage by mass: 10-30% of water, comprising the following components: 5%-8% of fatty alcohol polyoxyethylene ether sodium sulfate, 2%-4% of sodium dodecyl benzene sulfonate, 3%-5% of diethanolamide, 3%-5% of lauryl sodium sulfate, 4%-5% of alkyl amide propyl betaine, 2%-5% of alkyl glycoside, 3%-5% of isomeric alcohol polyoxyethylene ether, 1%-3% of N-acylamino acid salt, 0.5%-2% of EDTA disodium, 1%-3% of hydantoin and the balance of pure water. The environment-friendly detergent concentrated solution disclosed by the invention is mainly prepared by compounding mild decontamination factors, is high in deoiling rate and good in decontamination effect, and can be applied to washing in various scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of detergents, and in particular to an environmentally friendly detergent concentrate and a preparation method thereof. Background Art

[0002] In daily life, we need to clean all the time, and we must use detergents when cleaning. Nowadays, there are more and more types of detergents. Washing products will come into contact with the human body directly or indirectly. As people's health awareness increases, the requirements for chemical safety are getting higher and higher. Therefore, consumers are more and more demanding on detergent products, which must be safe and environmentally friendly, not harmful to the skin and the surface of objects, and have good effects. However, detergents with strong decontamination ability now contain more compounds that are highly irritating to the skin, while relatively mild detergents have limited decontamination effects. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide an environmentally friendly detergent concentrate and a preparation method thereof, aiming to improve the decontamination effect of mild detergents.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The first aspect of the present invention provides an environmentally friendly detergent concentrate, which comprises the following components, measured by mass percentage: 5% to 8% of sodium polyoxyethylene fatty alcohol ether sulfate, 2% to 4% of sodium dodecylbenzene sulfonate, 3% to 5% of diethanolamide, 3% to 5% of sodium dodecyl sulfate, 4% to 5% of alkyl amide propyl betaine, 2% to 5% of alkyl glycoside, 3% to 5% of isomeric alcohol polyoxyethylene ether, 1% to 3% of N-acylamino acid salt, 0.5% to 2% of disodium EDTA, 1% to 3% of hydantoin, and the remainder is pure water.

[0006] Preferably, in the environmentally friendly detergent concentrate, the alkyl glycoside is an alkyl glycoside containing 8 to 14 carbon atoms.

[0007] Preferably, in the environmentally friendly detergent concentrate, the alkyl glycoside is an alkyl glycoside containing 12 to 14 carbon atoms.

[0008] Preferably, in the environmentally friendly detergent concentrate, the alkylamidopropyl betaine includes at least one of cocoamidopropyl betaine and laurylamidopropyl betaine.

[0009] Preferably, in the environmentally friendly detergent concentrate, the N-acyl amino acid salt includes at least one of N-acyl glutamate, N-acyl aspartate, and N-acyl sarcosinate.

[0010] Preferably, in the environmentally friendly detergent concentrate, the alkylamidopropyl betaine is cocoamidopropyl betaine, and the N-acyl amino acid salt is N-acyl glutamate; the mass ratio of the N-acyl glutamate, alkyl glucoside and cocoamidopropyl betaine is (1-2):(2-4):(4-5).

[0011] Preferably, in the environmentally friendly detergent concentrate, the mass ratio of the N-acyl glutamate, the alkyl glucoside and the cocamidopropyl betaine is 2:4:5.

[0012] A second aspect of the present invention provides a method for preparing a detergent, which is used to prepare the above-mentioned environmentally friendly detergent concentrate, comprising the following steps:

[0013] S1. Add deionized water and sodium polyoxyethylene fatty alcohol ether sulfate into a mixing tank according to the ratio and stir at a speed of 500 to 800 r / min until dissolved;

[0014] S2. Add the N-acylamino acid salt, alkyl glycoside and sodium dodecyl sulfate into a stirring tank and continue stirring at a speed of 600 to 800 r / min until dissolved;

[0015] S3. Diethanolamide, alkylamidopropyl betaine, sodium dodecylbenzene sulfonate and isomeric alcohol polyoxyethylene ether are placed in a stirring tank and stirred at a speed of 600 to 800 r / min until dissolved;

[0016] S4. Put disodium EDTA and hydantoin into a stirring tank, stir at a speed of 800 to 1000 r / min for 30 to 40 minutes, and discharge the mixture to obtain the environmentally friendly detergent concentrate.

[0017] Preferably, in the preparation method of the detergent, in S4, after discharging the material, filtering is performed using a 12500 mesh filter.

[0018] Beneficial effects: The first aspect of the present invention provides an environmentally friendly detergent concentrate, which is compounded with a variety of active decontamination factors and is mainly composed of mild components. It can be diluted and used according to different usage conditions. It is friendly to the user's skin and has a good decontamination effect.

[0019] The second aspect of the present invention provides a method for preparing a detergent. The method has a simple process, and the prepared environmentally friendly detergent concentrate has good stability and excellent decontamination effect. DETAILED DESCRIPTION

[0020] The present invention provides an environmentally friendly detergent concentrate and a preparation method thereof. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the following examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The first aspect of the present invention provides an environmentally friendly detergent concentrate, which comprises the following components by mass percentage: 5% to 8% sodium sulfate of fatty alcohol polyoxyethylene ether, 2% to 4% sodium dodecylbenzene sulfonate, 3% to 5% diethanolamide, 3% to 5% sodium dodecyl sulfate, 4% to 5% alkyl amidopropyl betaine, 2% to 5% alkyl glycoside, 3% to 5% isomeric alcohol polyoxyethylene ether, 1% to 3% N-acyl amino acid salt, 0.5% to 2% disodium EDTA, 1% to 3% hydantoin, and the rest is pure water. Among the above components, sodium sulfate of fatty alcohol polyoxyethylene ether, alkyl amidopropyl betaine, alkyl glycoside and N-acyl amino acid salt are all mild decontamination factors, and the above components are compounded to effectively remove oil stains.

[0022] Preferably, the alkyl glycoside is an alkyl glycoside containing 8 to 14 carbon atoms. Specifically, the alkyl glycoside may be APG0810 (containing 8 to 10 carbon atoms), APG0814 (containing 8 to 14 carbon atoms), or APG1214 (containing 12 to 14 carbon atoms).

[0023] Preferably, the alkyl glycoside is an alkyl glycoside containing 12 to 14 carbon atoms. Specifically, when the alkyl glycoside is APG1214, the decontamination effect is best when it is compounded with other components.

[0024] Preferably, the alkylamidopropyl betaine includes at least one of cocoamidopropyl betaine and laurylamidopropyl betaine.

[0025] Preferably, the N-acyl amino acid salt includes at least one of N-acyl glutamate, N-acyl aspartate, and N-acyl sarcosinate.

[0026] Preferably, the alkylamidopropyl betaine is cocamidopropyl betaine, the N-acyl amino acid salt is N-acyl glutamate; the mass ratio of the N-acyl glutamate, the alkyl polyglycoside and the cocamidopropyl betaine is (1-2): (2-4): (4-5). Within this range, the decontamination effect of the formula is close to the best, and if the dosage of the above components is further increased, the effect is not significantly improved.

[0027] Preferably, the mass ratio of the N-acyl glutamate, alkyl glucoside and cocamidopropyl betaine is 2:4:5. When the mass ratio of the above three components is 2:4:5, the decontamination effect of the formula is close to the best and the production cost is relatively the lowest.

[0028] A second aspect of the present invention provides a method for preparing a detergent, which is used to prepare the above-mentioned environmentally friendly detergent concentrate, comprising the following steps:

[0029] S1. Add deionized water and sodium polyoxyethylene fatty alcohol ether sulfate into a mixing tank according to the ratio and stir at a speed of 500 to 800 r / min until dissolved;

[0030] S2. Add the N-acylamino acid salt, alkyl glycoside and sodium dodecyl sulfate into a stirring tank and continue stirring at a speed of 600 to 800 r / min until dissolved;

[0031] S3. Diethanolamide, alkylamidopropyl betaine, sodium dodecylbenzene sulfonate and isomeric alcohol polyoxyethylene ether are placed in a stirring tank and stirred at a speed of 600 to 800 r / min until dissolved;

[0032] S4. Put disodium EDTA and hydantoin into a stirring tank, stir at a speed of 800 to 1000 r / min for 30 to 40 minutes, and discharge the mixture to obtain the environmentally friendly detergent concentrate.

[0033] Preferably, in S4, after discharging the material, filtering is performed using a 12500 mesh filter.

[0034] Example 1

[0035] An environmentally friendly detergent concentrate comprises the following components by mass percentage: 6% sodium sulfate of fatty alcohol polyoxyethylene ether, 3% sodium dodecylbenzene sulfonate, 4% diethanolamide, 4% sodium dodecyl sulfate, 4% alkyl amide propyl betaine, 2% alkyl glycoside, 4% isomeric alcohol polyoxyethylene ether, 1% N-acylamino acid salt, 1% disodium EDTA, 2% hydantoin, and the remainder is pure water;

[0036] Wherein, the alkylamidopropyl betaine is cocamidopropyl betaine;

[0037] The alkyl glycoside is APG0810;

[0038] The N-acyl amino acid salt is N-acyl glutamate;

[0039] The method for preparing the environmentally friendly detergent concentrate comprises the following steps:

[0040] S1. According to the ratio of deionized water, sodium sulfate of fatty alcohol polyoxyethylene ether into a stirring tank, stirring at a speed of 700r / min until dissolved;

[0041] S2. The N-acyl amino acid salt, alkyl glycoside and sodium dodecyl sulfate were placed in a stirring tank and stirred at a speed of 800 r / min until dissolved;

[0042] S3. The diethanolamide, alkyl amide propyl betaine, sodium dodecylbenzene sulfonate and isomeric alcohol polyoxyethylene ether were added to a stirring tank and stirred at a speed of 800r / min until dissolved;

[0043] S4. Put disodium EDTA and hydantoin into a stirring tank, stir at a speed of 1000 r / min for 30 minutes, discharge the material, and then filter it with a 12500 mesh filter to obtain the environmentally friendly detergent concentrate.

[0044] Example 2

[0045] An environmentally friendly detergent concentrate, which differs from Example 1 in that the alkyl glycoside is APG0814.

[0046] Example 3

[0047] An environmentally friendly detergent concentrate, which differs from Example 1 in that the alkyl glycoside is APG1214.

[0048] Example 4

[0049] An environmentally friendly detergent concentrate, which is different from Example 1 in that the alkyl amidopropyl betaine is lauryl amidopropyl betaine.

[0050] Example 5

[0051] An environmentally friendly detergent concentrate, which differs from Example 1 in that the N-acyl amino acid salt is N-acyl aspartate.

[0052] Example 6

[0053] An environmentally friendly detergent concentrate, which differs from Example 1 in that the N-acyl amino acid salt is N-acyl sarcosinate.

[0054] The formulas of the environmentally friendly detergent concentrates of Example 3, Examples 7-9 and Comparative Example 1 are as follows:

[0055]

[0056] The formulas of the environmentally friendly detergent concentrates of Examples 9-12 and Comparative Example 2 are as follows:

[0057]

[0058]

[0059] The formulas of the environmentally friendly detergent concentrates of Example 9, Example 12, Example 13 and Comparative Example 3 are as follows:

[0060]

[0061] The environmentally friendly detergent concentrate prepared in each example and comparative example was diluted with deionized water at a volume ratio of 1:2, and the oil removal rate at room temperature was tested with reference to the oil removal rate method-arbitration method in GB9985-2000.

[0062] The environmentally friendly detergent concentrate prepared in each embodiment and comparative example was diluted with deionized water at a volume ratio of 1:5 to test the purification ability of the oily rag. The test steps are as follows: food oil is evenly sprinkled on a rag with uniform whiteness, and the whiteness before washing is measured. Then, each oily rag is washed 5 times with the detergent dilution of each embodiment and comparative example, and the whiteness after washing is measured, and the difference before washing and after washing 5 times is calculated.

[0063] The corresponding test results are as follows:

[0064] Oil removal rate (%) Whiteness before washing Wash 5 times whiteness Difference Example 1 86.32 52.4 57.5 5.1 Example 2 89.14 51.3 57.1 5.8 Example 3 93.37 52.7 59.5 6.8 Example 4 84.23 52.3 57.7 5.4 Example 5 88.56 51.7 57.8 6.1 Example 6 86.77 52.2 58.1 5.9 Example 7 93.61 52.4 59.1 6.7 Example 8 94.92 52.5 59.6 7.1 Example 9 96.31 51.6 59.1 7.5 Comparative Example 1 96.28 52.2 59.1 6.9 Example 10 96.57 52.1 59.6 7.5 Embodiment 11 96.72 51.3 58.6 7.6 Example 12 96.62 51.7 59.1 7.4 Comparative Example 2 96.82 51.9 59.1 7.2 Embodiment 13 93.71 52.2 58.9 7.6 Embodiment 14 96.74 51.4 58.8 7.4 Comparative Example 3 96.75 51.5 58.5 7

[0065] It can be seen from the above results that after the environmentally friendly detergent concentrate prepared in the present invention is diluted with deionized water at a volume ratio of 1:2, the degreasing rate for hard surface objects can reach more than 84%.

[0066] As for the washing effect of oily rags, after the environmentally friendly detergent concentrate prepared by the present invention is diluted with deionized water at a volume ratio of 1:5, the whiteness of the stained area of ​​the oily rag is significantly improved, and the whiteness can be increased by more than 5 after washing 5 times.

[0067] Further comparison of Examples 1 to 3 revealed that among the three alkyl glycosides APG0810, APG0814 and APG1214, APG1214 had the best oil removal rate and cleaning effect on rags after compounding with other components, while APG0814 was second.

[0068] Comparing Example 3 with Example 4, it is found that among cocamidopropyl betaine and lauryl amidopropyl betaine, the oil removal rate and the cleaning effect of the rag are better after cocamidopropyl betaine is compounded with other components. The oil removal rate of Example 3 is 93.37%, which is significantly better than Example 4 (84.23%).

[0069] Comparing Example 3 with Examples 5-6, it is found that among N-acyl glutamate, N-acyl aspartate and N-acyl sarcosinate, N-acyl glutamate has the best oil removal rate and dirt removal effect, followed by N-acyl aspartate.

[0070] By comparing Examples 7-9 with Comparative Example 1, it is found that as the amount of cocamidopropyl betaine increases, the oil removal rate and the decontamination effect of the detergent show an increasing trend, but when the amount of cocamidopropyl betaine is greater than 5%, the effect is not significantly improved and the trend tends to be stable. Considering the effect and cost comprehensively, the best amount of cocamidopropyl betaine is 5%.

[0071] By comparing Examples 9-12 with Comparative Example 2, it is found that as the amount of alkyl glycoside (APG1214) increases, the oil removal rate and the decontamination effect of the detergent tend to increase. However, when the amount of alkyl glycoside (APG1214) is greater than 4% (corresponding to Example 11), the effect is not significantly improved and the trend tends to be stable. Considering the effect and cost comprehensively, the best amount of alkyl glycoside (APG1214) is 4%.

[0072] By comparing Example 3 with Example 8, and Example 11, Example 13, and Example 14 with Comparative Example 3, it is found that with the increase in the amount of N-acyl glutamate, the oil removal rate and the decontamination effect of the detergent show an increasing trend, but when the amount of N-acyl glutamate is greater than 2%, the effect is not significantly improved, and the trend tends to be stable. Considering the effect and cost comprehensively, the best amount of cocamidopropyl betaine is 2%.

[0073] By comprehensively comparing the above embodiments and comparative examples, when the mass ratio of N-acyl glutamate, alkyl glucoside and cocamidopropyl betaine in the environmentally friendly detergent concentrate of the present invention is (1-2):(2-4):(4-5), the effect is better and the cost is relatively the lowest.

[0074] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. An environmentally friendly detergent concentrate, characterized in that: Calculated by mass percentage, it includes the following components: 5% to 8% sodium polyoxyethylene fatty alcohol ether sulfate, 2% to 4% sodium dodecylbenzene sulfonate, 3% to 5% diethanolamide, 3% to 5% sodium dodecyl sulfate, 4% to 5% alkyl amide propyl betaine, 2% to 5% alkyl glycoside, 3% to 5% isomeric alcohol polyoxyethylene ether, 1% to 3% N-acyl amino acid salt, 0.5% to 2% disodium EDTA, 1% to 3% hydantoin, and the rest is pure water.

2. The environmentally friendly detergent concentrate according to claim 1, characterized in that: The alkyl glycoside is an alkyl glycoside containing 8 to 14 carbon atoms.

3. The environmentally friendly detergent concentrate according to claim 2, characterized in that: The alkyl glycoside is an alkyl glycoside containing 12 to 14 carbon atoms.

4. The environmentally friendly detergent concentrate according to claim 1, characterized in that: The alkylamidopropyl betaine includes at least one of cocoamidopropyl betaine and laurylamidopropyl betaine.

5. The environmentally friendly detergent concentrate according to claim 4, characterized in that: The N-acyl amino acid salt includes at least one of N-acyl glutamate, N-acyl aspartate, and N-acyl sarcosinate.

6. The environmentally friendly detergent concentrate according to claim 5, characterized in that: The alkylamidopropyl betaine is cocoamidopropyl betaine, and the N-acyl amino acid salt is N-acyl glutamate; the mass ratio of the N-acyl glutamate, alkyl glucoside and cocoamidopropyl betaine is (1-2):(2-4):(4-5).

7. The environmentally friendly detergent concentrate according to claim 6, characterized in that: The mass ratio of the N-acyl glutamate, the alkyl glucoside and the cocamidopropyl betaine is 2:4:

5.

8. A method for preparing a detergent, characterized in that: The method for preparing the environmentally friendly detergent concentrate according to any one of claims 1 to 7 comprises the following steps: S1. Add deionized water and sodium polyoxyethylene fatty alcohol ether sulfate into a mixing tank according to the ratio and stir at a speed of 500 to 800 r / min until dissolved; S2. Add the N-acylamino acid salt, alkyl glycoside and sodium dodecyl sulfate into a stirring tank and continue stirring at a speed of 600 to 800 r / min until dissolved; S3. Diethanolamide, alkylamidopropyl betaine, sodium dodecylbenzene sulfonate and isomeric alcohol polyoxyethylene ether are placed in a stirring tank and stirred at a speed of 600 to 800 r / min until dissolved; S4. Put disodium EDTA and hydantoin into a stirring tank, stir at a speed of 800 to 1000 r / min for 30 to 40 minutes, and discharge the mixture to obtain the environmentally friendly detergent concentrate.

9. The method for preparing a detergent according to claim 8, characterized in that: In the step S4, after discharging the material, filtering is performed using a 12500 mesh filter.

Images