A cleaning agent having enhanced stain release

Abstract

The present application relates to the field of washing products, and discloses a cleaning agent with enhanced stain stripping effect, comprising the following components: a hydrophobic solvent, a surfactant, and water.In the cleaning agent of the present application, the hydrophobic solvent is used to improve the effect of the surfactant in removing hydrophobic stains, which can effectively improve the cleaning agent and has the advantages of simple process and low cost; and by controlling the solubility of the hydrophobic solvent and the ratio of the hydrophobic solvent to the surfactant, the hydrophobic solvent can improve the detergency of the surfactant to a greater extent; in addition, by compounding the biological enzyme with the hydrophobic solvent and controlling the ratio of the two within a certain range, the stability of the biological enzyme can be effectively improved by the hydrophobic solvent, thereby giving the cleaning agent better stability and stain stripping effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing products, in particular to a cleaning agent with enhanced stain removal effect. BACKGROUND

[0002] Cleaning or washing of hard surface dirt usually includes wetting, peeling, emulsifying and other processes. Surfactants are adsorbed to the surface of the dirt, gradually wrapping the dirt, peeling the dirt, and making the dirt separate from the hard surface to achieve the purpose of removal. Current technology can achieve that the dirt separated from the hard surface can be uniformly emulsified and dispersed, but the peeling effect of some dirt is poor. If the dirt is difficult to peel, it cannot be emulsified and dispersed, and the consumer's intuitive experience is that the cleaning effect of the cleaning agent is poor. In view of this situation, it is meaningful to improve the dirt peeling effect of the washing agent, and it is a problem that has been continuously concerned and expected to be solved in the current washing field.

[0003] Some special structure substances can help surfactants to be adsorbed to the surface of the dirt, help to peel the dirt, and achieve better washing effect. For example, patent CN101473025B discloses a washing agent composition containing water-soluble polyepoxy and vinyl ester amphiphilic graft polymer, which can improve the effect of the composition on peeling hydrophobic dirt from fabrics and hard surfaces, but such special structure substances have the problems of complex preparation process and high cost. SUMMARY

[0004] In order to solve the technical problems of complex process and high cost of the existing method for improving the washing effect of dirt on hard surface, the present application provides a cleaning agent with enhanced stain removal effect. The cleaning agent of the present application uses hydrophobic solvent and surfactant to improve the effect of the cleaning agent on removing hydrophobic stains, and has the advantages of simple process and low cost.

[0005] The specific technical scheme of the present application is as follows:

[0006] A cleaning agent with enhanced stain removal effect, comprising the following components: hydrophobic solvent, surfactant, water.

[0007] The present application finds that the hydrophobic solvent can enhance the soil removal effect of the surfactant, and the combination of the two in the cleaning agent can enhance the stain removal effect of the cleaning agent, and the mechanism is as follows: the hydrophobic solvent can help the surfactant penetrate into the hydrophobic dirt faster, enhance the speed of the surfactant stripping the hydrophobic dirt, and thus more efficiently remove the dirt, and after the hydrophobic dirt is removed from the hard surface such as tableware, fruits and vegetables, the hydrophobic solvent can shield the charges between the hydrophilic groups of the anionic surfactant, and the surfactant molecules are more likely to form micelles, and the formed emulsion is more stable. In the above-mentioned manner, the hydrophobic solvent can enhance the ability of the surfactant to remove oil stains, fruit wax, residual pesticides and other stains; and the above-mentioned manner can give the cleaning agent better stain removal effect, and there is no need to synthesize substances with special structures, so the process is simple and the production cost of the cleaning agent will not be greatly increased.

[0008] As preferred, the cleaning agent further comprises the following components: other auxiliary agents; the other auxiliary agents comprise at least one of biological enzymes, chelating agents, preservatives, viscosity regulators, pH regulators, hydrotropes and fragrances.

[0009] As preferred, the cleaning agent comprises the following components by mass percentage:

[0010] (a) hydrophobic solvent 0.5-15%;

[0011] (b) surfactant 5-50%;

[0012] (c) other auxiliary agents 0.001-10%;

[0013] (d) deionized water balance.

[0014] As preferred, the solubility of the hydrophobic solvent in water at 25℃ is 2-2.5wt% (i.e. the mass fraction after dissolving in water).

[0015] After analyzing and testing the interaction between the hydrophobic solvent and the surfactant, the present application finds that when the solubility of the hydrophobic solvent is too small, most of it will be solubilized by the surfactant, and it is difficult to greatly improve the speed of the surfactant penetrating into the hydrophobic dirt; when the solubility of the hydrophobic solvent is too large, most of it is free in water and cannot effectively interact with the surfactant, resulting in poor effect of the hydrophobic solvent on improving the soil removal effect of the surfactant. When the solubility of the hydrophobic solvent is 2-2.5% (25℃), the effect of the surfactant on removing hydrophobic stains can be greatly improved, thereby giving the cleaning agent better stain removal effect.

[0016] Further, the hydrophobic solvent is phenoxyethanol and / or diethylene glycol hexyl ether.

[0017] Preferably, the mass ratio of the hydrophobic solvent to the surfactant is 0.015-0.455:1.

[0018] The inventors have found that the hydrophobic solvent and the surfactant interact with each other, and the hydrophobic solvent can improve the effect of the surfactant in removing hydrophobic stains. The ratio of the hydrophobic solvent to the surfactant affects the interaction between the two. When the relative amount of the hydrophobic solvent is too small, it is difficult to effectively improve the effect of the surfactant in removing stains. When the relative amount of the hydrophobic solvent is increased to a certain extent, it is difficult to significantly improve the effect of the surfactant in removing stains, and the cost is also increased. Therefore, the mass ratio of the hydrophobic solvent to the surfactant is controlled to be 0.015-0.455:1, so that the cleaning agent has good stain removal effect while the cost is controlled.

[0019] Preferably, the other auxiliary agent includes a biological enzyme, and the mass ratio of the hydrophobic solvent to the biological enzyme is 1-6:1.

[0020] The biological enzyme can degrade stains into small molecules that are easy to remove, thereby improving the cleaning effect of the cleaning agent. However, the biological enzyme is easy to be inactivated in the cleaning agent, especially in a liquid cleaning agent, thereby reducing the cleaning effect. In the prior art, enzyme stabilizers (such as borax and calcium ions) are often added to the cleaning agent formula to maintain the stability of the enzyme. These technologies for improving the stability of the enzyme preparation have the problems of low safety and reduced stability of the formula.

[0021] The inventors have found that when the mass ratio of the hydrophobic solvent to the biological enzyme is 1-6:1, the hydrophobic solvent can improve the stability of the biological enzyme in the cleaning agent, so that the biological enzyme can have good stain removal effect, and the cleaning agent has good stability and does not have the problems of stratification, precipitation and odor under high temperature, low temperature and freeze-thaw conditions. When the relative amount of the hydrophobic solvent is too small, the enzyme stabilizer cannot play a role. When the relative amount of the hydrophobic solvent is too large, the enzyme stability cannot be improved to a greater extent, and the cost is also increased.

[0022] Preferably, the surfactant includes at least one of an anionic surfactant, a nonionic surfactant and an amphoteric surfactant.

[0023] Further, the anionic surfactant includes C 10-16 alkyl benzene sulfonic acid, C 10-16 fatty alcohol polyoxyethylene ether sodium sulfate, C 12-18 fatty acid methyl ester sulfonic acid sodium, C 10-18 sodium secondary alkyl sulfonate, C 14-16at least one of sodium alkenyl sulfonate, sodium N-lauroyl glutamate, disodium lauryl polyoxyethylene ether sulfosuccinate.

[0024] Further, the nonionic surfactant comprises C 8-16 alkyl polyglycoside, cocoyl methyl glucamide, sorbitan monolaurate, C 12-18 fatty alcohol polyoxyethylene ether, C 9-11 fatty alcohol polyoxyethylene ether, C 12-14 secondary alcohol ethoxylate, C 6-18 fatty alcohol polyoxyethylene polyoxypropylene ether, polyoxyethylene glycerol ether.

[0025] Further, the amphoteric surfactant comprises cocamidopropyl betaine, C 12-14 at least one of alkyl dimethyl betaine, cocamidopropyl hydroxysultaine, cocamidopropyl amine oxide, cocodimethyl amine oxide.

[0026] As preferred, the biological enzyme comprises at least one of a-amylase, protease, lipase, catalase and pesticide degrading enzyme.

[0027] As preferred, the chelating agent comprises at least one of tetrasodium glutamate diacetate, trisodium N,N-di(carboxymethyl)alaninate, tetrasodium ethylenediaminetetraacetate and tetrasodium ethylenediaminetetraacetate.

[0028] As preferred, the preservative comprises at least one of sodium benzoate, potassium sorbate, methyl isothiazolinone and methyl chloroisothiazolinone.

[0029] As preferred, the viscosity regulator comprises at least one of sodium chloride, sodium sulfate, propylene glycol and glycerol.

[0030] As preferred, the pH regulator comprises at least one of citric acid, lactic acid and sodium hydroxide.

[0031] As preferred, the hydrotrope comprises at least one of sodium xylene sulfonate, sodium cumene sulfonate and sodium toluene sulfonate.

[0032] Compared with the prior art, the present application has the following advantages:

[0033] (1) In the cleaning agent of the present application, the hydrophobic solvent is used to improve the effect of the surfactant on removing hydrophobic stains, which can effectively improve the cleaning agent with the advantages of simple process and low cost; by controlling the solubility of the hydrophobic solvent and the ratio of the hydrophobic solvent to the surfactant, the hydrophobic solvent can improve the detergency of the surfactant to a greater extent;

[0034] (2) The detergent of the present application, by compounding the biological enzyme with the hydrophobic solvent, and controlling the ratio of the two within a certain range, can effectively improve the stability of the biological enzyme by using the hydrophobic solvent, thereby imparting better stability and stain stripping effect to the cleaning agent. DETAILED DESCRIPTION

[0035] The present application will be further described in conjunction with the examples.

[0036] General examples

[0037] A cleaning agent with enhanced stain stripping effect, comprising the following components: hydrophobic solvent, surfactant, water.

[0038] As a specific embodiment, the cleaning agent comprises the following components by mass percentage:

[0039] (a) hydrophobic solvent 0.5-15%;

[0040] (b) surfactant 5-50%;

[0041] (c) other auxiliaries 0.001-10%;

[0042] (d) deionized water balance.

[0043] In the present application, the content of all components is calculated based on the effective ingredient content. The components of the cleaning agent are further described as follows:

[0044] Hydrophobic solvent

[0045] The solubility of component (a) hydrophobic solvent in water at 25°C is 2-2.5 wt%.

[0046] The mass ratio of hydrophobic solvent to surfactant is 0.015-0.455:1.

[0047] The hydrophobic solvent can be selected from phenoxyethanol and / or diethylene glycol hexyl ether.

[0048] Surfactant

[0049] Component (b) surfactant can be selected from one or more of anionic surfactant, nonionic surfactant and amphoteric surfactant.

[0050] Anionic surfactant

[0051] The anionic surfactant can be selected from C 10-16 alkyl benzene sulfonic acid, C 10-16 fatty alcohol polyoxyethylene ether sulfate sodium, C 12-18 fatty acid methyl ester sulfonic acid sodium, C 10-18 sodium secondary alkyl sulfonate, C 14-16one or more of sodium alkenyl sulfonate, sodium N-lauroyl glutamate and disodium lauryl polyoxyethylene ether sulfosuccinate.

[0052] non-ionic surfactant

[0053] The non-ionic surfactant can be selected from one or more of C 8-16 alkyl glucoside, cocoyl methyl glucamide, sorbitan mono laurate, C 12-18 fatty alcohol polyoxyethylene ether, C 9-11 fatty alcohol polyoxyethylene ether, C 12-14 secondary alcohol ethoxylate, C 6-18 one or more of fatty alcohol polyoxyethylene polyoxypropylene ether and polyoxyethylene ether glycerol ether.

[0054] zwitterionic surfactant

[0055] The zwitterionic surfactant can be selected from one or more of cocamidopropyl betaine, C 12-14 alkyl dimethyl betaine, cocamidopropyl hydroxysultaine, cocamidopropyl oxamide and cocodimethyl oxamide.

[0056] other adjuvants

[0057] The component (c) other adjuvants can be selected from one or more of biological enzymes, chelating agents, preservatives, viscosity modifiers, pH modifiers, hydrotropes and fragrances.

[0058] biological enzymes

[0059] The mass ratio of the hydrophobic solvent to the biological enzyme is 1-6:1.

[0060] The biological enzyme can be selected from one or more of a-amylase, protease, lipase, catalase and pesticide-degrading enzyme.

[0061] chelating agents The chelating agent can be selected from one or more of tetrasodium glutamate diacetate, trisodium N,N-di(carboxymethyl)alaninate, tetrasodium ethylenediaminetetraacetate and tetrasodium ethylenediaminetetraacetate.

[0062] preservatives

[0063] The preservative can be selected from one or more of sodium benzoate, potassium sorbate, methyl isothiazolinone and methyl chloroisothiazolinone.

[0064] viscosity modifiers

[0065] The viscosity modifier can be selected from one or more of sodium chloride, sodium sulfate, propylene glycol and glycerol.

[0066] pH modifiers

[0067] The pH adjusting agent can be selected from one or more of citric acid, lactic acid, and sodium hydroxide.

[0068] Hydrotrope

[0069] The hydrotrope can be selected from one or more of sodium xylene sulfonate, sodium cumene sulfonate, and sodium toluene sulfonate.

[0070] Fragrance

[0071] The fragrance is a common ingredient and is not limited in variety.

[0072] The method for preparing the cleaning agent can be performed using conventional means well known to those skilled in the art, and the appropriate processing temperature and processing time should be selected according to the state and role of the components in the solution, as well as the stability and thermal stability of the components.

[0073] Without further elaboration, one of skill in the art will appreciate fully that the present application is capable of being used in any number of variations and modifications of the specific embodiments described herein. Such variations and modifications of the embodiments disclosed herein are to be considered as within the scope of the present application. The examples are intended to further illustrate the application and should not be considered as limiting the scope of the application. The starting materials used in the examples are commercially available unless otherwise specified. In the examples, all amounts are expressed in weight percent, and all component amounts are expressed as active material.

[0074] In the following examples, the test methods used are as follows:

[0075] 1. Oil removal performance test:

[0076] (1) Preparation of oil stains:

[0077] Formulation: mixed oil 16.0 g, peanut oil 16.0 g in GB / T 9985 Appendix B.

[0078] The mixed oil was heated and melted in a 60°C water bath, and the peanut oil was added and stirred until uniform.

[0079] (2) Preparation of stained slides:

[0080] The cleaned and dried glass slides were numbered and weighed (m0), and 0.1-0.2 g of oil stains were evenly applied to the specified area (20 mm below the top end and 10 mm above the bottom end) of the glass slides. After aging for 20-22 h at room temperature, the weight was measured (m1).

[0081] (3) Test procedure:

[0082] The glass slides with known amount of contamination were inserted into the corresponding washing rack for preparation of washing. The power of the vertical decontamination machine was turned on, the water bath temperature was set to 30℃±2℃, the rotation speed was set to 160r / min, and the washing time was set to 5min. 1000mL of 0.2% sample solution prepared by using 250mg / L hard water was poured into the washing barrel of the vertical decontamination machine, and the glass slides with known weight were quickly put into the washing barrel together with the corresponding washing rack. When the last washing rack was put into the washing barrel, the soaking time was started, and at the same time, the stirrer was quickly installed. After 1min of soaking, the decontamination machine was started, and after 5min of washing, the machine was automatically stopped. The stirrer was quickly removed, the washing rack was taken out, and the glass slides were dried at room temperature. The weight (m2) of the glass slides was measured, and the oil removal rate was calculated.

[0083] Parallel tests were simultaneously performed.

[0084] The oil removal rate was the mass fraction of the washed oil stain, expressed in %, and calculated according to the following formula:

[0085]

[0086] 2. Test of residual pesticide removal performance:

[0087] The test of residual pesticide removal performance was determined according to the verification method of residual pesticide removal effect in GB / T 24691 Fruit and Vegetable Cleaning Agent Appendix A. The experimental results were expressed by P value, and the higher the P value, the better the pesticide residue removal effect.

[0088] 3. Test of fruit wax removal performance

[0089] (1) Preparation of fruit wax stain:

[0090] In a beaker, 10g of Brazil palm wax and 87g of water were heated to 50℃, and then 3g of morpholine fatty acid salt was added and stirred quickly for 1h. After emulsification and dispersion, it was cooled to room temperature to obtain the fruit wax stain.

[0091] (2) Test method:

[0092] The fruit to be tested (m0) was weighed, and the fruit wax stain was applied to the surface of the fruit by immersion coating. After air drying, a layer of preservative film was formed, and the weight (m1) was measured. A sample solution with a concentration of 0.2% was prepared by using 250mg / L hard water, and the washing temperature was 30℃. In the fruit and vegetable dehydrator, 800mL of the prepared sample solution was added, and the fruit coated with fruit wax was put in. After 1min of soaking, the washing was started at a uniform speed for 5min. The washing and stirring mode was one circle clockwise, one circle counterclockwise, and three seconds per circle. After washing, the fruit was taken out and put into another clean fruit and vegetable dehydrator. 1000mL of hard water (250mg / L) was used to rinse for 1min in the same way as the washing, and then it was discarded. The fruit was rinsed again in the same way, and after washing and air drying, the weight (m2) was measured.

[0093] Parallel tests were carried out at the same time.

[0094] The fruit wax removal rate is the mass fraction of the fruit wax removed, expressed in % and calculated according to the following formula:

[0095]

[0096] 3. Stability test:

[0097] High temperature stability: placed at 50±2°C for 30 days, immediately observed after taking out, the appearance was a uniform transparent liquid, no delamination, precipitation phenomenon, and no obvious change in gas interface, and no abnormality compared with the normal temperature sample.

[0098] Low temperature stability: placed at 0±2°C for 30 days, the appearance was a uniform transparent liquid after recovering to room temperature, no delamination, precipitation phenomenon, and no obvious change in gas interface, and no abnormality compared with the normal temperature sample.

[0099] Freeze-thaw stability: cycled at-18°C / room temperature for 5 times, the appearance was a uniform transparent liquid after recovering to room temperature, no delamination, precipitation phenomenon, and no obvious change in gas interface, and no abnormality compared with the normal temperature sample.

[0100] If the stability test passes, it indicates that the formula has good stability.

[0101] Examples 1-3 and Comparative Example 1: Effect of hydrophobic solvent on surfactant

[0102] The raw material composition and ratio of the cleaning agents of Examples 1-3 and Comparative Example 1 are shown in Table 1.

[0103] Table 1 Formulation of cleaning agent

[0104]

[0105] The performance test results of the cleaning agents of Examples 1-3 and Comparative Example 1 are shown in Table 2.

[0106] Table 2 Performance of cleaning agent

[0107] Performance Example 1 Example 2 Example 3 Comparative Example 1 Oil removal, % 50.6 45.6 48.3 29.8 Pesticide removal, % 6 5 5.5 4 Wax removal, % 88.2 84.3 86.5 60.1 Stability Pass Pass Pass Fail

[0108] As can be seen from the results in Table 2, the oil removal rate, pesticide removal rate, and fruit wax removal rate of Examples 1-3 containing the hydrophobic solvents phenoxyethanol and diethylene glycol hexyl ether are all higher than those of Comparative Example 1. The improvement in the oil removal rate, pesticide removal rate, and fruit wax removal rate is presumably due to the fact that the hydrophobic solvent can help the surfactant penetrate into the interior of the hydrophobic dirt more quickly, thereby enhancing the speed of the surfactant in stripping the hydrophobic dirt, and thus more efficiently removing the dirt. Moreover, after the hydrophobic dirt is removed from the hard surfaces such as tableware and fruits and vegetables, the hydrophobic solvent can shield the charges between the hydrophilic groups of the anionic surfactant molecules, making it easier for the surfactant molecules to form micelles, and the formed emulsion is more stable.

[0109] Examples 1-2, Comparative Examples 2-5: Influence of hydrophobic solvent type

[0110] The cleaning agent raw material compositions and proportions of Examples 1-2 and Comparative Examples 2-5 are shown in Table 3.

[0111] Table 3 Formulation of cleaning agent

[0112]

[0113] The hydrophilic index and solubility of the hydrophobic solvents (i.e. component (a)) used in Examples 1-2 and Comparative Examples 2-5 are shown in Table 4. The hydrophilic index is calculated according to the following formula:

[0114]

[0115] Table 4 Hydrophilic index and solubility of hydrophobic solvents

[0116]

[0117]

[0118] The cleaning agent performance test results of Examples 1-2 and Comparative Examples 2-5 are shown in Table 5.

[0119] Table 5 Performance of cleaning agent

[0120] Performance Example 1 Example 2 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Oil removal, % 50.6 45.6 29.5 30.3 28.9 30.6 Pesticide removal, % 6 5 4 4 4 4 Wax removal, % 88.2 84.3 61.3 59.5 60.1 60.8 Stability Pass Pass Fail Fail Fail Fail

[0121] As can be seen from the results in Table 5, the oil removal rate, pesticide removal rate, and fruit wax removal rate of Examples 1 and 2, which respectively contain the hydrophobic solvents phenoxyethanol and diethylene glycol hexyl ether, are higher, while the oil removal rate, pesticide removal rate, and fruit wax removal rate of Comparative Examples 2-5, which contain other hydrophobic solvents, are lower. Thus, it is known that not all hydrophobic solvents have the effect of enhancing the stripping of hydrophobic dirt by surfactants, and only hydrophobic solvents that meet specific conditions have better effects. As can be seen from the data in Tables 4 and 5, the oil removal rate, pesticide removal rate, fruit wax removal rate, and system stability of Examples 2 and Comparative Example 3, which contain hydrophobic solvents with the same hydrophilic index, are very different, and it is speculated that the reason for the effect of enhancing the stripping of hydrophobic dirt by surfactants may be related to the solubility of the hydrophobic solvent in water, and is unrelated to the hydrophilic index of the solvent itself. If the solubility of the hydrophobic solvent is too small, then most of the solvent is solubilized by the surfactant, and cannot effectively increase the speed of penetration of the surfactant into the interior of the hydrophobic dirt; if the solubility of the hydrophobic solvent is too large, then most of the solvent is free in water, and cannot effectively interact with the surfactant, and cannot effectively increase the efficiency of the surfactant in stripping hydrophobic dirt.

[0122] Examples 4-5, Comparative Examples 6-9: Effect of hydrophobic solvent on biological enzyme

[0123] The raw material composition and ratio of the cleaning agent of Examples 4-5 and Comparative Examples 6-9 are shown in Table 6.

[0124]

[0125] The performance test results of the cleaning agent of Examples 4-5 and Comparative Examples 6-9 are shown in Table 7. Among them, the sample after high temperature stability investigation was used for the test of oil removal rate, pesticide removal rate and fruit wax removal rate.

[0126] Table 7 Performance of cleaning agent

[0127] Performance Example 4 Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Oil removal, % 44.6 55.2 20.5 34.8 19.9 35.1 Pesticide removal, % 5 10 4 4 5 5 Wax removal, % 77.9 78.5 48.2 49.8 50.3 50.5 Stability Pass Pass Fail Fail Fail Fail

[0128] From the results of Table 7, it can be seen that the oil removal rate of Comparative Example 7 is higher than that of Comparative Example 6, and the pesticide removal rate and fruit wax removal rate are equivalent, the pesticide removal rate of Comparative Example 8 is higher than that of Comparative Example 6, and the oil removal rate and fruit wax removal rate are equivalent, which shows that the lipase only improves the oil removal rate, and the pesticide degrading enzyme only improves the pesticide removal rate. The oil removal rate and pesticide removal rate of Example 4 are lower than those of Example 5, and the oil removal rate and pesticide removal rate of Example 5 are higher than those of Comparative Example 9, which shows that the biological enzyme can improve the removal rate of hydrophobic dirt such as fat and pesticide, and further shows that the hydrophobic solvent phenoxyethanol can improve the stability of the biological enzyme in the cleaning agent.

[0129] Examples 6-11: Effect of ratio of hydrophobic solvent and surfactant

[0130] The raw material composition and ratio of the cleaning agent of Examples 6-11 are shown in Table 8.

[0131] Table 8 Formulation of cleaning agent

[0132]

[0133] The performance test results of the cleaning agent of Examples 6-11 are shown in Table 9.

[0134] Table 9 Performance of cleaning agent

[0135] Performance Example 6 Example 7 Example 8 Example 9 Example 10 Example 11 Oil removal, % 35.2 34.9 40.3 55.6 64.9 65.2 Pesticide removal, % 4.5 4.5 5 6.5 8 8 Wax removal, % 63.6 62.95 70.4 83.9 90.2 90.4 Stability Pass Pass Pass Pass Pass Pass

[0136] As shown in Table 9, the degreasing, pesticide removal, and fruit wax removal rates of the detergent only begin to improve when the mass ratio of hydrophobic solvent to surfactant in the detergent is greater than 0.015:1. Furthermore, as the content of hydrophobic solvent in the detergent increases, these rates gradually rise. When the mass ratio of hydrophobic solvent to surfactant in the detergent is greater than 0.455:1, the degreasing, pesticide removal, and fruit wax removal rates no longer change. Therefore, the preferred range for the mass ratio of hydrophobic solvent to surfactant is 0.015-0.455:1. Further increasing the content of hydrophobic solvent, while significantly enhancing the stain removal effect, will increase costs.

[0137] Examples 12-23: Effect of hydrophobic solvent and biological enzyme ratio

[0138] The composition and proportion of the cleaning agent raw materials in Examples 12-23 are shown in Table 10.

[0139] Table 10 Cleaning Agent Formulations

[0140]

[0141] The performance test results of the detergents in Examples 12-23 are shown in Table 11. The oil removal rate, pesticide removal rate, and fruit wax removal rate were all tested using samples that had undergone high-temperature stability testing.

[0142] Table 11 Performance of Cleaning Agents

[0143]

[0144]

[0145] As shown in Table 11, only when the mass ratio of hydrophobic solvent to bio-enzyme in the detergent is greater than 1:1 can the degreasing rate and pesticide removal rate be effectively improved, i.e., the stability of the bio-enzyme in the detergent be enhanced. Furthermore, as the hydrophobic solvent content in the detergent increases, the difference in degreasing rate and pesticide removal rate between detergents containing and without bio-enzymes gradually increases. When the mass ratio of hydrophobic solvent to bio-enzyme in the detergent is greater than 6:1, the difference in degreasing rate and pesticide removal rate between detergents containing and without bio-enzymes no longer changes. Therefore, the preferred range for the mass ratio of hydrophobic solvent to bio-enzyme is 1:1-6:1. Further increasing the hydrophobic solvent content, while also improving the stability of the bio-enzyme in the detergent, will increase costs.

[0146] Unless otherwise specified, the raw materials and equipment used in this invention are all commonly used in the field; unless otherwise specified, the methods used in this invention are all conventional methods in the field.

[0147] The above is only the preferred embodiment of the present application, and does not limit the present application, and any simple modification, change and equivalent transformation of the above embodiment according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. Use of a hydrophobic solvent for improving the stain release effect of a cleaning agent, characterized in that, The hydrophobic solvent, the surfactant, water and other auxiliary agents are compounded to form the cleaning agent, the hydrophobic solvent is used to improve the stain stripping effect of the biological enzyme in the cleaning agent; the other auxiliary agents include the biological enzyme, and the mass ratio of the hydrophobic solvent to the biological enzyme is 1-6:1; the hydrophobic solvent is phenoxyethanol and / or diethylene glycol hexyl ether; and the mass ratio of the hydrophobic solvent to the surfactant is 0.015-0.455:

1.

2. Use according to claim 1, wherein The other auxiliary agents also include at least one of a chelating agent, a preservative, a viscosity regulator, a pH regulator, a hydrotrope and a fragrance.

3. Use according to claim 2, wherein the compound is ###0002### The cleaning agent contains the following components in percentage by mass: (a) the hydrophobic solvent 0.5-15%; (b) the surfactant 5-50%; (c) the other auxiliary agents 0.001-10%; (d) deionized water the balance.

4. Use according to claim 1 or 3, wherein the compound is ###0002### The surfactant includes at least one of an anionic surfactant, a nonionic surfactant and an amphoteric surfactant.

5. Use according to claim 2 or 3, wherein the compound is ###0002### The biological enzyme includes at least one of a-amylase, protease, lipase, catalase and pesticide-degrading enzyme.

6. Use according to claim 2 or 3, wherein the compound is ###0002### The chelating agent includes tetrasodium glutamate diacetate, N,N - at least one of trisodium bis(carboxymethyl)alaninate and tetrasodium ethylenediaminetetraacetate.

7. Use according to claim 2 or 3, wherein the compound is ###0002### The preservative includes at least one of sodium benzoate, potassium sorbate, methyl isothiazolinone and methyl chloroisothiazolinone.

8. Use according to claim 2 or 3, wherein the compound is ###0002### The viscosity regulator includes at least one of sodium chloride, sodium sulfate, propylene glycol and glycerol.

9. Use according to claim 2 or 3, wherein the compound is ###0002### The pH regulator includes at least one of citric acid, lactic acid and sodium hydroxide.

10. Use according to claim 2 or 3, wherein the compound is ###00003### The hydrotrope includes at least one of sodium xylene sulfonate, sodium cumene sulfonate and sodium toluene sulfonate.

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