CN107955743B

CN107955743B - Efficient laundry detergent and preparation method thereof

Info

Publication number: CN107955743B
Application number: CN201711071725.XA
Authority: CN
Inventors: 张晶晶
Original assignee: Walch Guangzhou Commodity Co ltd
Current assignee: Walch Guangzhou Commodity Co ltd
Priority date: 2017-11-03
Filing date: 2017-11-03
Publication date: 2020-05-19
Anticipated expiration: 2037-11-03
Also published as: CN107955743A

Abstract

The invention belongs to the field of daily chemicals, and particularly relates to a high-efficiency laundry detergent and a preparation method thereof. The efficient laundry detergent provided by the invention comprises the following components in percentage by mass: 5-20% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 3-15% of linear alkyl benzene sulfonic acid, 3-6% of fatty alcohol-polyoxyethylene ether, 3-8% of 35% of cocoamido propyl betaine with the mass concentration, 3-10% of 17% of potassium laurate aqueous solution, 3-10% of 5% of potassium oleate aqueous solution, 1-10% of sodium hydroxide, 0.1-2% of complex enzyme, 0.05-0.2% of preservative, 0.1-0.5% of disodium ethylenediamine tetraacetic acid, 0.05-0.5% of citric acid, 0.5-3% of sodium chloride, 0.15-0.5% of essence and the balance of deionized water. The high-efficiency laundry detergent provided by the invention has the advantages of bacteriostasis, strong dirt-removing capability, energy and time saving, low foam and water saving and environmental friendliness.

Description

Efficient laundry detergent and preparation method thereof

Technical Field

The invention belongs to the field of daily chemicals, and particularly relates to a high-efficiency laundry detergent and a preparation method thereof.

Background

Dressing is a large basic element of human life, and from ancient times to present, cleaning of clothes is a very important part of daily life of people. Along with the improvement of the quality of life of modern people, the performance requirements of daily chemicals for washing are continuously improved, the most common daily chemicals for washing in the past are washing powders which have better decontamination and cleaning effects, but the washing powders are used as powdery detergents and are often insufficiently dissolved in water when in use, so that the washing effect of clothes is influenced, the washing powders which are not fully dissolved in local areas cause overlarge concentration of the washing powders in the local areas, the areas have high alkalinity and can damage the clothes, and the washing powders contain a lot of solid auxiliaries, so that fabrics are hardened, and meanwhile, the washing powders have strong irritation to the skin and easily damage the skin of hands of a user. In China, along with the improvement of the living standard of people, consumers increasingly favor the use of laundry detergent with good dissolubility. Compared with washing powder, the laundry detergent has the characteristics of being mild, easy to dissolve and low in energy consumption. The laundry detergent has a low market share after being started late in China, but the market of the laundry detergent keeps increasing at a high speed in recent years.

Chinese patent application CN103805367A discloses a high-efficiency bactericidal laundry detergent which comprises the following components in parts by weight: 0.5-6 parts of a traditional Chinese medicine bactericide, 6-31 parts of an anionic surfactant, 12-43 parts of a nonionic surfactant, 0.06-1 part of a thickening agent and other additives and 40-60 parts of deionized water; the preparation method of the traditional Chinese medicine bactericide comprises the following steps: mixing and decocting the folium artemisiae argyi, the sweet wormwood herb, the radix scutellariae, the pomegranate bark and the perilla leaf with equal weight, filtering, concentrating the filtrate to 1-1.5 g/mL, and sterilizing under high pressure to obtain the traditional Chinese medicine. The invention contains the traditional Chinese medicine bactericide, and the steps of decoction and concentration are required, the preparation process is complex, and heating is required when the laundry detergent is prepared.

Chinese patent application CN104479893A discloses a high-efficiency decontamination laundry detergent which comprises the following components in parts by weight: 15-20% of surfactant, 2-5% of acid additive, 0.2-0.6% of caustic soda flakes, 0.3-0.5% of bactericide, 0.3-0.5% of chelating agent, 0.4-0.6% of fluorescent brightener, 0.2-0.4% of preservative, 1-2% of thickener, 1-2% of anti-redeposition agent, 0.2-0.4% of rosemary oil, 0.5-1% of fixative, 2-4% of tea saponin, and the balance of deionized water. The bactericide in the invention contains triclosan, and long-term use of the bactericide can cause health disadvantages, such as more drug-resistant bacteria or hormone disorder.

At present, along with diversification of life styles of people, stains encountered in life are more and more complex, and the existing common laundry detergent is more and more difficult to meet the requirements of consumers. Secondly, environmental problems are more and more concerned, and saving, environmental protection and high efficiency are gradually the subjects of green household life. In the prior art, a laundry detergent which still has good bacteriostatic, bactericidal and decontamination functions, is simple in preparation process, reduces production cost, is environment-friendly and efficient is still lacked under the condition that no additional bactericide is added.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a high-efficiency laundry detergent and a preparation method thereof. The efficient laundry detergent provided by the invention is compounded by a plurality of surfactants, achieves the sterilization effect under the condition of not adding an additional bactericide, has good functions of bacteriostasis, sterilization and decontamination, is easy to biodegrade, and has high safety and no pollution. When the efficient laundry detergent is produced, the efficient laundry detergent can be prepared only by compounding at room temperature, so that the production process of the laundry detergent is greatly simplified, the energy and the time are saved, and the production cost is saved. In addition, the high-efficiency laundry detergent provided by the invention is low in foam, water-saving, environment-friendly and a high-efficiency, healthy and friendly laundry product.

The technical scheme of the invention is as follows:

the efficient laundry detergent comprises the following components in percentage by mass:

5-20% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 3-15% of linear alkyl benzene sulfonic acid, 3-6% of fatty alcohol-polyoxyethylene ether, 3-8% of 35% of cocoamido propyl betaine with the mass concentration, 3-10% of 17% of potassium laurate aqueous solution, 3-10% of 5% of potassium oleate aqueous solution, 1-10% of sodium hydroxide, 0.1-2% of complex enzyme, 0.05-0.2% of preservative, 0.1-0.5% of disodium ethylenediamine tetraacetic acid, 0.05-0.5% of citric acid, 0.5-3% of sodium chloride, 0.15-0.5% of essence and the balance of deionized water.

Further, the efficient laundry detergent comprises the following components in percentage by mass:

10% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 5% of linear alkyl benzene sulfonic acid, 4% of fatty alcohol-polyoxyethylene ether, 5% of cocoamidopropyl betaine with the mass concentration of 35%, 6% of a potassium laurate aqueous solution with the mass concentration of 17%, 6% of a potassium oleate aqueous solution with the mass concentration of 5%, 2% of sodium hydroxide, 0.5% of complex enzyme, 0.1% of preservative, 0.1% of disodium ethylenediamine tetraacetic acid, 0.1% of citric acid, 1.5% of sodium chloride, 0.35% of essence and 59.35% of deionized water.

Further, the compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 4-7:2-4:4-6: 1-3.

Furthermore, the compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 5:3:5: 2.

Further, the protease is a microencapsulated protease.

Furthermore, the preparation method of the microencapsulated protease comprises the following steps:

(1) adding 2% of acacia gum aqueous solution into protease, wherein the mass ratio of the acacia gum aqueous solution to the protease is 5:1, so as to obtain acacia gum-protease solution;

(2) dissolving chitosan in 6% acetic acid water solution to prepare 1.2% chitosan acetic acid solution, adding calcium chloride in an amount of 1/10 of the chitosan by mass, and stirring until the calcium chloride is completely dissolved to obtain chitosan-calcium chloride solution;

(3) adding the chitosan-calcium chloride solution obtained in the step (2) into the Arabic gum-protease solution obtained in the step (1), wherein the mass ratio of the chitosan-calcium chloride solution to the Arabic gum-protease solution is 1:5, and uniformly stirring to obtain a mixed solution;

(4) and (4) drying the mixed solution obtained in the step (3), and crushing to obtain the product.

Further, the preservative is composed of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one according to the mass ratio of 3-5: 8-10.

Furthermore, the preservative consists of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one according to the mass ratio of 4: 9.

In addition, the invention also provides a preparation method of the high-efficiency laundry detergent, which comprises the following steps:

s1, adding deionized water with the total mass of 95% into linear alkylbenzene sulfonic acid and sodium hydroxide for pre-neutralization, sequentially adding disodium ethylene diamine tetraacetate, fatty alcohol-polyoxyethylene ether sodium sulfate, fatty alcohol-polyoxyethylene ether, cocamidopropyl betaine, a potassium laurate aqueous solution and a potassium oleate aqueous solution after the reaction is completed, and stirring until the disodium ethylene diamine tetraacetate, the fatty alcohol-polyoxyethylene ether sodium sulfate, the fatty alcohol-polyoxyethylene ether, the cocamidopropyl betaine, the potassium laurate aqueous solution and the potassium oleate aqueous solution are completely;

s2, adding the complex enzyme, the preservative, the citric acid, the sodium chloride and the essence into the uniform system obtained in the step S1, stirring until the system is uniform, adding the residual amount of ionized water, and stirring uniformly to adjust the pH value to 7.5-8.5.

Further, the step S2 stirs uniformly to adjust the pH to 8.0.

At present, along with diversification of life styles of people, stains encountered in life are more and more complex, the difficulty of removing stains is more and more high, and the existing common laundry detergent is more and more difficult to meet the requirements of consumers. Based on the complexity of stains, the invention adopts the complex enzyme to improve the integral detergency. The compound enzyme is prepared by compounding protease, lipase, amylase and cellulase according to a certain mass ratio, achieves the aim that various enzyme components simultaneously act on different substrates of stains, and can generate a more efficient and excellent synergistic decontamination effect. The complex enzyme can effectively remove protein, starch and grease stains, simultaneously acts on cotton fibers, and has the functions of preventing redeposition of stains, removing hair balls, maintaining fabric color and the like. In addition, the invention microencapsulates the protease to isolate the protease from other enzymes, has good compatibility, maintains the stability of a complex enzyme system to ensure the activity of the complex enzyme, and ensures that the obtained product has excellent decontamination capability and is efficient and stable.

At present, the laundry detergent with the sterilization function is various, however, components such as triclosan and triclocarban are mostly added, and the laundry detergent is possibly unfavorable for health after long-term use, for example, more drug-resistant bacteria are caused, or hormone disorder is caused. The inventor unexpectedly discovers that by adopting multiple surfactants for compounding, the composition has good compatibility and good synergistic interaction effect, not only can the surface tension of a system be obviously reduced, the dirt-removing capacity of the complex enzyme be enhanced, but also higher sterilization capacity can be excited, the sterilization effect can be achieved under the condition that no additional bactericide is added, and meanwhile, the low-foam water-saving laundry detergent is low in foam, environment-friendly and is a high-efficiency, friendly and healthy laundry product.

Compared with the prior art, the invention has the following advantages:

(1) the efficient laundry detergent provided by the invention is low in foam, water-saving, environment-friendly and a high-efficiency, environment-friendly and healthy laundry product.

(2) The efficient laundry detergent provided by the invention is compounded by a plurality of surfactants, achieves the sterilization effect under the condition of not adding an additional bactericide, has good functions of bacteriostasis, sterilization and decontamination, is easy to biodegrade, and has high safety and no pollution.

(3) The preparation method of the high-efficiency laundry detergent provided by the invention is simple in technological operation and easy to realize industrial production.

(4) The efficient laundry detergent provided by the invention is non-irritant, does not leave alkaline residues after washing, does not cause symptoms such as skin allergy and the like, and does not damage fabrics.

(5) When the efficient laundry detergent is produced, the efficient laundry detergent can be prepared only by compounding at room temperature, so that the production process of the laundry detergent is greatly simplified, the energy and the time are saved, and the production cost is saved.

Detailed Description

The present invention is further described in the following description of the specific embodiments, which is not intended to limit the invention, but various modifications and improvements can be made by those skilled in the art according to the basic idea of the invention, within the scope of the invention, as long as they do not depart from the basic idea of the invention.

In the invention, the mass concentration of the sodium alcohol ether sulphate is 70%, CAS number: 9004-82-4; linear alkyl benzene sulfonic acid: CAS number: 42615-29-2; fatty alcohol polyoxyethylene ether: CAS number: 68131-39-5; the mass concentration of cocamidopropyl betaine is 35%, CAS number: 61789-40-0; proteases are available from Shanghai Dennity Biotech, Inc., type: DENYCLEAN PRO-03L; lipases are available from Shanghai Dennity Biotech, Inc., type: DENYCLEAN LIP-1A; amylases are available from Shanghai Dennity Biotech, Inc., type: DENYCLEAN AMSL, respectively; cellulases are available from Shanghai Dennity Biotech, Inc., type: DENYCLEAN 80L.

Example 1 high-efficiency laundry detergent

5 percent of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70 percent, 3 percent of linear alkyl benzene sulfonic acid, 3 percent of fatty alcohol-polyoxyethylene ether, 3 percent of cocoamidopropyl betaine with the mass concentration of 35 percent, 3 percent of potassium laurate aqueous solution with the mass concentration of 17 percent, 3 percent of potassium oleate aqueous solution with the mass concentration of 5 percent, 1 percent of sodium hydroxide, 0.1 percent of complex enzyme, 0.05 percent of preservative, 0.1 percent of disodium ethylenediamine tetraacetic acid, 0.05 percent of citric acid, 0.5 percent of sodium chloride, 0.15 percent of essence and 78.05 percent of deionized water; the preservative is composed of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 3: 10.

The compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 4:4:6: 3.

The protease is microencapsulated protease.

The preparation method of the microencapsulated protease comprises the following steps:

The preparation method of the high-efficiency laundry detergent comprises the following steps:

s2 adding complex enzyme, antiseptic, citric acid, sodium chloride and essence into the uniform system obtained in step S1, stirring until the system is uniform, adding the rest amount of ionized water, stirring uniformly, and adjusting pH to 7.5.

Example 2 high-efficiency laundry detergent

20% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 15% of linear alkylbenzene sulfonic acid, 6% of fatty alcohol-polyoxyethylene ether, 8% of cocoamidopropyl betaine with the mass concentration of 35%, 10% of a potassium laurate aqueous solution with the mass concentration of 17%, 10% of a potassium oleate aqueous solution with the mass concentration of 5%, 10% of sodium hydroxide, 2% of complex enzyme, 0.2% of preservative, 0.5% of disodium ethylenediamine tetraacetic acid, 0.5% of citric acid, 3% of sodium chloride, 0.5% of essence and 14.3% of deionized water; the preservative consists of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 3-5: 8-10.

The compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 7:2:4: 1.

The protease is microencapsulated protease.

s2 adding complex enzyme, antiseptic, citric acid, sodium chloride and essence into the uniform system obtained in step S1, stirring until the system is uniform, adding the rest amount of ionized water, stirring uniformly, and adjusting pH to 8.5.

Example 3 high-efficiency laundry detergent

10% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 5% of linear alkyl benzene sulfonic acid, 4% of fatty alcohol-polyoxyethylene ether, 5% of cocoamidopropyl betaine with the mass concentration of 35%, 6% of a potassium laurate aqueous solution with the mass concentration of 17%, 6% of a potassium oleate aqueous solution with the mass concentration of 5%, 2% of sodium hydroxide, 0.5% of complex enzyme, 0.1% of preservative, 0.1% of disodium ethylenediamine tetraacetic acid, 0.1% of citric acid, 1.5% of sodium chloride, 0.35% of essence and 59.35% of deionized water; the preservative consists of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 4: 9.

The compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 5:3:5: 2.

The protease is microencapsulated protease.

s2 adding complex enzyme, antiseptic, citric acid, sodium chloride and essence into the uniform system obtained in step S1, stirring until the system is uniform, adding the rest amount of ionized water, stirring uniformly, and adjusting pH to 8.0.

Comparative example 1, a high-efficiency laundry detergent

10% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 5% of linear alkyl benzene sulfonic acid, 4% of fatty alcohol-polyoxyethylene ether, 5% of cocoamidopropyl betaine with the mass concentration of 35%, 12% of a 17% potassium laurate aqueous solution, 2% of sodium hydroxide, 0.5% of complex enzyme, 0.1% of preservative, 0.1% of disodium ethylenediamine tetraacetate, 0.1% of citric acid, 1.5% of sodium chloride, 0.35% of essence and 59.35% of deionized water; the preservative consists of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 4: 9.

The protease is microencapsulated protease.

The preparation method of the microencapsulated protease and the high-efficiency laundry detergent is similar to that of example 3.

The difference from example 3 is that the mass percentage of the aqueous solution of potassium oleate with a mass concentration of 5% was changed from 6% to 0, and the mass percentage of the aqueous solution of potassium laurate with a mass concentration of 17% was changed from 6% to 12%.

Comparative example 2, high-efficiency laundry detergent

10% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 5% of linear alkyl benzene sulfonic acid, 4% of fatty alcohol-polyoxyethylene ether, 5% of cocoamido propyl betaine with the mass concentration of 35%, 6% of a potassium stearate aqueous solution with the mass concentration of 17%, 6% of a potassium oleate aqueous solution with the mass concentration of 5%, 2% of sodium hydroxide, 0.5% of complex enzyme, 0.1% of preservative, 0.1% of disodium ethylenediamine tetraacetic acid, 0.1% of citric acid, 1.5% of sodium chloride, 0.35% of essence and 59.35% of deionized water; the preservative consists of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 4: 9.

The protease is microencapsulated protease.

The difference from example 3 is that the aqueous solution of potassium laurate with a mass concentration of 17% is changed into the aqueous solution of potassium stearate with a mass concentration of 17%, and the mass percentage is 6%.

Comparative example 3, high-efficiency laundry detergent

The compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 1:1:1: 1.

The protease is microencapsulated protease.

The difference from example 3 is that the mixed enzyme consists of protease, lipase, amylase and cellulase in a mass ratio of 1:1:1: 1.

Comparative example 4, a high-efficiency laundry detergent

The preparation method of the high-efficiency laundry detergent is similar to that of example 3.

The difference from the embodiment 3 is that the compound enzyme is composed of protease, lipase, amylase and cellulase according to the mass ratio of 5:3:5: 2.

Comparative example 5, high-efficiency laundry detergent

The protease is microencapsulated protease.

The difference from example 3 is that in the preparation of the microencapsulated protease, no calcium chloride is added in step (2).

Comparative example 6, high-efficiency laundry detergent

12 percent of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70 percent, 6 percent of linear alkyl benzene sulfonic acid, 6 percent of cocamidopropyl betaine with the mass concentration of 35 percent, 6 percent of potassium laurate aqueous solution with the mass concentration of 17 percent, 6 percent of potassium oleate aqueous solution with the mass concentration of 5 percent, 2 percent of sodium hydroxide, 0.5 percent of complex enzyme, 0.1 percent of preservative, 0.1 percent of disodium ethylene diamine tetraacetate, 0.1 percent of citric acid, 1.5 percent of sodium chloride, 0.35 percent of essence and 59.35 percent of deionized water; the preservative consists of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 4: 9.

The protease is microencapsulated protease.

The difference from example 3 is that the mass percent of fatty alcohol-polyoxyethylene ether was changed from 4% to 0, the mass percent of sodium fatty alcohol-polyoxyethylene ether sulfate having a mass concentration of 70% was changed from 10% to 12%, the mass percent of linear alkyl benzene sulfonic acid was changed from 5% to 6%, and the mass percent of cocamidopropyl betaine having a mass concentration of 35% was changed from 5% to 6%.

Comparative example 7, high-efficiency laundry detergent

10% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 5% of alkyl glycoside, 4% of fatty alcohol-polyoxyethylene ether, 5% of cocamidopropyl betaine with the mass concentration of 35%, 6% of a potassium laurate aqueous solution with the mass concentration of 30%, 6% of a potassium oleate aqueous solution with the mass concentration of 5%, 2% of sodium hydroxide, 0.5% of complex enzyme, 0.1% of preservative, 0.1% of disodium ethylenediamine tetraacetic acid, 0.1% of citric acid, 1.5% of sodium chloride, 0.35% of essence and 59.35% of deionized water; the preservative consists of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone according to the mass ratio of 4: 9.

The protease is microencapsulated protease.

The difference from example 3 is that linear alkyl benzene sulfonic acid was changed to alkyl glycoside, and the mass percentage was 5%.

Test example I, measurement of foam Properties

1. Test materials: the high-efficiency laundry detergents prepared in example 1, example 2, example 3, comparative example 1 and comparative example 2.

2. The test method comprises the following steps: the foam test was carried out in accordance with national Standard GB/T13173.6-1991, "determination of foaming power of detergents (Ross-Miles method)". The initial foam height and the foam height after 5 minutes of standing were recorded using a Roche foam meter.

3. Test results

The test results are shown in table 1.

Table 1: foam performance of high efficiency laundry detergent

Sample (I)	Initial foam height/mm	Foam height/mm after 5 minutes
			Example 1	97	28
Example 2	100	32
			Example 3	95	25
Comparative example 1	112	95
			Comparative example 2	110	88
Standard laundry detergent	120	115

As can be seen from table 1, compared with the standard laundry detergent, the high-efficiency laundry detergent prepared by the invention has low foam height and quick defoaming, wherein the foam height of example 3 is the lowest, which is the best example of the invention; example 3 is superior to comparative examples 1 and 2 in performance.

Test example two detergency test

1. Test samples: the high-efficiency laundry detergents prepared in example 3, comparative example 4, comparative example 5 and comparative example 6.

2. The test method comprises the following steps: the detergency test is carried out according to the national standard GB/T13174-2008 'determination of detergency and circulating washing performance of a detergent for clothing', wherein EMPA117 is mixed dirty cloth of blood stains, milk stains and sweat stains, and CFTC-S-28 is rice starch dirty cloth. Sample 2 is a sample after 4 weeks at 37 ℃.

3. Test results

The test results are shown in table 2.

Table 2: detergency test result of high-efficiency laundry detergent

The test results in table 2 show that compared with comparative examples 3, 4, 5 and 6, the high-efficiency laundry detergent prepared in example 3 of the present invention has good decontamination effect on carbon black stained cloth, protein stained cloth, sebum stained cloth, EMPA117 and CFTC-S-28, and the sample after being placed at 37 ℃ for 4 weeks still has good decontamination effect, which indicates that the product prepared in the present invention has excellent decontamination capability, and the product is efficient and stable.

Test example three, bacteriostatic test

1. Test materials: the high-efficiency laundry detergents prepared in example 3, comparative example 6 and comparative example 7.

2. The test method comprises the following steps: carrying out bacteriostasis experiments according to QB/T2738-2012 evaluation method for antibacterial and bacteriostatic effects of daily chemical products, wherein the experimental strain is staphylococcus aureus, and the dilution factor is 1: 100, the test action time is 20 minutes.

3. And (3) test results:

the test results are shown in table 3.

Table 3: bacteriostatic rate of high-efficiency laundry detergent

Test materials	Bacteriostatic ratio (%)
		Example 3	99.99
Comparative example 6	90.72
		Comparative example 7	92.46

As can be seen from table 3, the high-performance laundry detergent foam prepared in example 3 of the present invention has more excellent bacteriostatic effect than those of comparative examples 6 and 7.

Claims

1. The efficient laundry detergent is characterized by comprising the following components in percentage by mass:

5-20% of fatty alcohol-polyoxyethylene ether sodium sulfate with the mass concentration of 70%, 3-15% of linear alkyl benzene sulfonic acid, 3-6% of fatty alcohol-polyoxyethylene ether, 3-8% of 35% of cocoamido propyl betaine, 3-10% of 17% of potassium laurate aqueous solution, 3-10% of 5% of potassium oleate aqueous solution, 1-10% of sodium hydroxide, 0.1-2% of complex enzyme, 0.05-0.2% of preservative, 0.1-0.5% of disodium ethylenediamine tetraacetic acid, 0.05-0.5% of citric acid, 0.5-3% of sodium chloride, 0.15-0.5% of essence and the balance of deionized water;

the compound enzyme consists of protease, lipase, amylase and cellulase according to the mass ratio of 5:3:5: 2;

the protease is microencapsulated protease;

2. The efficient laundry detergent according to claim 1, which is prepared from the following components in percentage by mass:

3. The high-efficiency laundry detergent according to claim 1 or 2, characterized in that the preservative consists of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one in a mass ratio of 3-5: 8-10.

4. The high-efficiency laundry detergent according to claim 3, wherein the preservative consists of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one in a mass ratio of 4: 9.

5. The preparation method of the high-efficiency laundry detergent as claimed in any one of claims 1 to 4, characterized by comprising the following steps: