Cleansing cream and preparation method thereof

Abstract

The present invention discloses a cleaning paste and a preparation method thereof. The cleaning paste comprises the following components by weight: 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of soluble dietary fiber, 1.5-6 parts of surfactant, 1-3 parts of disodium ethylenediaminetetraacetic acid, 5-7 parts of stearic acid, 3.4-5.2 parts of phosphoric acid, 4.5-6.4 parts of cellosolve, 1.9-3.3 parts of glycerol, 12-21 parts of sulfonic acid, and 1.1-2 parts of defoamer. Based on the green concept of becoming a treasure, the present invention uses banana peel as a raw material to prepare a new cleaning paste for removing kitchen grease. The components of the cleaning paste are used in combination to have a synergistic effect, so that the cleaning paste has the performance of adsorbing grease on the basis of having good degreasing ability, and has high decontamination efficiency. In addition, the cleaning paste has weak corrosiveness and good safety, and is a kitchen grease cleaner with good decontamination effect, high efficiency, safety, and environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of decontamination products, and in particular to a cleaning paste and a preparation method thereof. Background Art

[0002] At present, kitchen grease cleaners mainly include strong alkali type, solvent type and surfactant type, which use spraying method, organic solution dissolution method and emulsification decomposition method to remove grease respectively. However, the strong alkali type is highly corrosive and easily causes damage to the surface of objects; the organic solvent of the solvent type is flammable and explosive, with unsatisfactory safety and inconvenient use; the surfactant type has an unsatisfactory oil removal effect and takes a long time. These three types of cleaners have different degrees of limitations, and the decontamination effect needs to be further improved. Therefore, it is of great application value and development prospect to develop a kitchen grease cleaner with good decontamination effect, high efficiency, safety and environmental protection.

[0003] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a cleaning paste and a preparation method thereof, aiming to solve the problem that the decontamination effect of the existing grease cleaning agents needs to be further improved.

[0005] The technical solution of the present invention is as follows:

[0006] A first aspect of the present invention provides a cleaning paste, wherein the cleaning paste comprises the following components in parts by mass:

[0007] 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of soluble dietary fiber (SDF), 1.5-6 parts of surfactant, 1-3 parts of disodium ethylenediaminetetraacetic acid, 5-7 parts of stearic acid, 3.4-5.2 parts of phosphoric acid, 4.5-6.4 parts of cellosolve, 1.9-3.3 parts of glycerol, 12-21 parts of sulfonic acid, and 1.1-2 parts of defoaming agent.

[0008] Optionally, the surfactant 1.5 to 6 parts by mass includes:

[0009] 1-3 parts of sodium dodecyl sulfate and 0.5-3 parts of dodecyl sulfopropyl betaine.

[0010] Optionally, the cellosolve includes ethylene glycol monobutyl ether.

[0011] Optionally, the defoaming agent comprises dimethyl silicone oil.

[0012] A second aspect of the present invention provides a method for preparing a cleaning paste, which comprises the following steps, measured by weight:

[0013] 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of SDF, 1.5-6 parts of surfactants, 1-3 parts of disodium ethylenediaminetetraacetate, 12-21 parts of sulfonic acid, 3.4-5.2 parts of phosphoric acid, 4.5-6.4 parts of cellosolves, and 1.9-3.3 parts of glycerol are mixed, and then 1.1-2 parts of a defoaming agent is added and stirred, and 5-7 parts of stearic acid is added and stirred continuously to obtain the cleaning paste.

[0014] Optionally, the preparation method of the cleaning paste specifically comprises the steps of:

[0015] Mix 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of SDF, 1-3 parts of sodium dodecyl sulfate, and 1-3 parts of disodium ethylenediaminetetraacetate to obtain a first mixture;

[0016] Under stirring conditions, 12 to 21 parts of sulfonic acid, 3.4 to 5.2 parts of phosphoric acid, 4.5 to 6.4 parts of cellosolve, 1.9 to 3.3 parts of glycerol, and 0.5 to 3 parts of dodecyl sulfopropyl betaine are added to the first mixture, and then stirring is continued at a first preset temperature for a first preset time to obtain a second mixture;

[0017] Adding 1.1 to 2 parts of dimethyl silicone oil to the second mixture, stirring at a second preset temperature for a second preset time to obtain a third mixture;

[0018] Under the second preset temperature and stirring conditions, 5 to 7 parts of stearic acid are added to the third mixture, and stirred for a third preset time to obtain the cleaning paste.

[0019] Optionally, the first preset temperature is 85-95° C., and the first preset time is 8-15 min; and / or,

[0020] The second preset temperature is 85-95° C., the second preset time is 5-10 min; and / or the third preset time is 8-15 min.

[0021] Optionally, the method for preparing the banana peel particles comprises the steps of:

[0022] Provide banana peels;

[0023] The banana peel is washed, dried to constant weight, and then crushed and passed through a 80-120 mesh sieve to obtain the banana peel particles.

[0024] Optionally, the method for preparing SDF comprises the steps of:

[0025] Banana peel powder is provided;

[0026] The banana peel powder is added to a sodium hydrogen phosphate-citric acid buffer solution, and then α-amylase is added to hydrolyze for a fourth preset time, and papain is added to hydrolyze for a fifth preset time, and then suction filtration is performed to obtain a filtrate;

[0027] Concentrating the filtrate to obtain a concentrated solution;

[0028] Add three times the volume of ethanol to the concentrated solution, let it stand, and then perform suction filtration to obtain a filter residue;

[0029] The SDF is obtained by naturally air-drying the filter residue.

[0030] Optionally, the fourth preset time is 60-70 minutes, and the fifth preset time is 60-70 minutes; and / or,

[0031] The mass ratio of the banana peel powder, α-amylase and papain is 1000:(6.7-7.3):(4.7-5.3).

[0032] Beneficial effects: Based on the green concept of turning into treasure, the present invention uses banana peel as the raw material of the cleaning paste to prepare a new type of cleaning paste for removing kitchen grease. The components of the cleaning paste are used in synergy, so that the cleaning paste has the performance of absorbing grease on the basis of good grease removal ability, and has high decontamination efficiency. In addition, the cleaning paste has weak corrosiveness and good safety. The cleaning paste provided by the present invention is a kitchen grease cleaner with good decontamination effect, high efficiency, safety and environmental protection, and has great application value and development prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the preparation process of the cleaning paste in an embodiment of the present invention.

[0034] Figure 2 This is the XRD pattern of the SDF prepared in the embodiment of the present invention.

[0035] Figure 3 This is the FTIR graph of the SDF prepared in the embodiment of the present invention.

[0036] Figure 4 The following are actual pictures of the cleaning pastes in Example 7, Comparative Example 1 and Comparative Example 3 of the present invention.

[0037] Figure 5 It is a comparison diagram of suspended solids on filter paper after filtration in the determination of suspended solids in the present invention.

[0038] Figure 6(a) is a real picture of the embodiment of the present invention before cleaning with Mr. Muscle, the cleaning paste in Examples 12 and 13; (b) is a real picture of the embodiment of the present invention after cleaning with Mr. Muscle, the cleaning paste in Examples 12 and 13.

[0039] Figure 7 It is a standard curve diagram of phosphorus in the embodiment of the present invention.

[0040] Figure 8 This is a diagram of the stability test results in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present invention provides a cleaning paste 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 below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0043] An embodiment of the present invention provides a cleaning paste, wherein the cleaning paste comprises the following components in parts by mass:

[0044] 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of SDF, 1.5-6 parts of surfactant, 1-3 parts of disodium ethylenediaminetetraacetate, 5-7 parts of stearic acid, 3.4-5.2 parts of phosphoric acid, 4.5-6.4 parts of cellosolve, 1.9-3.3 parts of glycerol, 12-21 parts of sulfonic acid, and 1.1-2 parts of defoaming agent.

[0045] The present invention is based on the green concept of "turning into treasure", uses banana peel as the raw material of cleaning paste, and prepares a new cleaning paste for removing kitchen grease. The components of the cleaning paste are used in synergy, so that the cleaning paste has the performance of adsorbing grease on the basis of good grease removal ability, and has high decontamination efficiency. In addition, the cleaning paste has weak corrosiveness and good safety. The cleaning paste provided by the present invention is a kitchen grease cleaner with good decontamination effect, high efficiency, safety and environmental protection, and has great application value and development prospects. Specifically, banana peel particles have good pollutant treatment performance, stability (not easily affected by acid, alkali, and salt), emulsification, suspension and thickening properties. As a thickener and grease adsorbent in the cleaning paste, it has a good adsorption effect on grease (banana peel particles and SDF can adsorb grease molecules in aqueous solution, greatly reducing residual grease in washing waste liquid), can adsorb various types of oil, organic pollutants and bad odors, and mainly removes kitchen grease substances such as fatty acids, lipids, proteins, and aromatic compounds through physical adsorption, chemical adsorption and ion adsorption.

[0046] SDF has good emulsification, suspension, thickening and stability (not easily affected by acid, alkali and salt), and is used as a moisturizing thickener and oil adsorbent in cleaning creams. SDF has special moisturizing and thickening properties because it has a large hollow network structure, which can quickly expand and thicken and dissolve in water, and is easy to disperse and not easy to aggregate; at the same time, SDF can absorb oil molecules due to its large hollow network structure.

[0047] Disodium EDTA is used as a chelating agent and dispersant in cleaning pastes. It has good complexing ability and good dispersing and suspending effects, so that the product will not pollute production equipment.

[0048] Stearic acid is used as an emulsifier and stabilizer in the cleaning paste, and it plays an emulsifying role, so that the cleaning paste can form a stable paste. Stearic acid is very suitable for the cleaning paste of the present invention, and has low cost.

[0049] Phosphoric acid acts as a dispersant and detergent in cleaning pastes, playing a dispersing role.

[0050] Glycerin, commonly known as glycerin, is used as a lubricant and moisturizer in cleansing creams. It is compatible with many substances and mixes well, and also has antioxidant properties.

[0051] Sulfonic acid is used as a preservative and solvent in cleaning pastes. The sulfonic acid group is a strongly water-soluble strong acid group. Therefore, sulfonic acid is a water-soluble strong acid compound and is used as a preservative and solvent in cleaning pastes.

[0052] In some embodiments, the surfactant 1.5 to 6 parts comprises:

[0053] 1-3 parts of sodium dodecyl sulfate and 0.5-3 parts of dodecyl sulfopropyl betaine.

[0054] Sodium dodecyl sulfate is used as an anionic surfactant in cleaning pastes and has good cleaning and decontamination effects. Dodecyl sulfopropyl betaine (SB12-3) has quaternary ammonium salt cations and sulfonic acid anions. It is used as a quaternary ammonium salt amphoteric surfactant and detergent in cleaning pastes. It has excellent surface properties, outstanding water resistance, good calcium soap dispersibility, low irritation, high cleaning performance, and good chemical stability in strong acid and strong alkali solutions. The combination of dodecyl sulfopropyl betaine and sodium dodecyl sulfate has obvious synergistic decontamination effect. When dodecyl sulfopropyl betaine is combined with sodium dodecyl sulfate, it also shows excellent foam performance and synergistic thickening effect.

[0055] When the cleaning paste provided in this embodiment is used, a proper amount of the cleaning paste can be directly applied to the oily and greasy areas, rubbed evenly for a while, rinsed with water or dried with a paper towel. Alternatively, the cleaning paste can be dissolved in a proper amount of water to prepare a solution for use.

[0056] In some embodiments, the cellosolve includes ethylene glycol monobutyl ether (also known as butyl cellosolve), but is not limited thereto. Ethylene glycol monobutyl ether is used as a cellosolve and a detergent in the cleaning paste.

[0057] In some embodiments, the defoaming agent includes but is not limited to dimethicone.

[0058] Among them, dimethyl silicone oil is used as a lubricant and stabilizer in the cleaning paste in addition to being a defoaming agent. The most commonly used silicone oil is methyl silicone oil, also known as ordinary silicone oil, whose organic groups are all methyl, with low surface tension, low temperature viscosity, low volatility, insoluble in water, non-corrosive to metals, non-toxic, and good chemical stability, insulation, hydrophobicity, high and low temperature resistance, and oxidation resistance. The lubricating and defoaming properties of dimethyl silicone oil are very suitable for the cleaning paste in the present invention.

[0059] The present invention also provides a method for preparing a cleaning paste. Figure 1 As shown, banana peels are simply processed to obtain banana peel particles and banana peel powder, the banana peel powder is chemically treated to obtain SDF, and then the above raw materials are used to prepare a cleaning paste, and finally the cleaning paste is subjected to corresponding tests (including decontamination rate, stability, corrosion liquid, washing liquid residue, etc.).

[0060] Specifically, the preparation method of the cleaning paste comprises the following steps, calculated by weight:

[0061] 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of SDF, 1.5-6 parts of surfactants, 1-3 parts of disodium ethylenediaminetetraacetate, 12-21 parts of sulfonic acid, 3.4-5.2 parts of phosphoric acid, 4.5-6.4 parts of cellosolves, and 1.9-3.3 parts of glycerol are mixed, and then 1.1-2 parts of a defoaming agent is added and stirred, and 5-7 parts of stearic acid is added and stirred continuously to obtain the cleaning paste.

[0062] Specifically, phosphoric acid can be added in the form of a phosphoric acid aqueous solution (wherein the phosphoric acid mass content is 60%, hereinafter referred to as 60% phosphoric acid), and when 3.4 to 5.2 parts of phosphoric acid need to be added, 60% phosphoric acid (5.7 to 8.7 parts) is added accordingly.

[0063] In some embodiments, the preparation method of the cleaning paste specifically comprises the following steps, measured by weight:

[0064] S11, mixing 0.5-1.5 parts of banana peel particles, 0.5-1.5 parts of SDF, 1-3 parts of sodium dodecyl sulfate, and 1-3 parts of disodium ethylenediaminetetraacetate to obtain a first mixture;

[0065] S12, under stirring conditions, adding 12 to 21 parts of sulfonic acid, 3.4 to 5.2 parts of phosphoric acid, 4.5 to 6.4 parts of cellosolve, 1.9 to 3.3 parts of glycerol, and 0.5 to 3 parts of dodecyl sulfopropyl betaine to the first mixture, and then continuing to stir at a first preset temperature for a first preset time to obtain a second mixture;

[0066] S13, adding 1.1 to 2 parts of dimethyl silicone oil to the second mixture, and stirring at a second preset temperature for a second preset time to obtain a third mixture;

[0067] S14, adding 5 to 7 parts of stearic acid to the third mixture under the second preset temperature and stirring conditions, stirring for a third preset time, to obtain the cleaning paste.

[0068] In step S12, in some embodiments, the first preset temperature is 85-95°C, for example, it can be 85°C, 86°C, 87°C, 88°C, 89°C, 90°C, 91°C, 92°C, 93°C, 94°C or 95°C, etc.; the first preset time is 8-15min, for example, it can be 8min, 9min, 10min, 11min, 12min, 13min, 14min or 15min.

[0069] In step S13, in some embodiments, the second preset temperature is 85-95°C, for example, it can be 85°C, 86°C, 87°C, 88°C, 89°C, 90°C, 91°C, 92°C, 93°C, 94°C or 95°C, etc.; the second preset time is 5-10min, for example, it can be 5min, 6min, 7min, 8min, 9min or 10min.

[0070] In step S14, in some embodiments, the third preset time is 8-15 minutes, for example, it can be 8 minutes, 9 minutes, 10 minutes, 11 minutes, 12 minutes, 13 minutes, 14 minutes or 15 minutes.

[0071] In some embodiments, the method for preparing the banana peel particles comprises the steps of:

[0072] Provide banana peels;

[0073] The banana peel is washed, dried to constant weight, and then crushed and passed through a 80-120 mesh sieve (for example, 80 mesh, 90 mesh, 100 mesh, 110 mesh, 120 mesh) to obtain the banana peel particles.

[0074] In some embodiments, the method for preparing SDF comprises the steps of:

[0075] S21, providing banana peel powder (prepared by grinding banana peel, or directly using banana peel particles);

[0076] S22, adding the banana peel powder to a sodium hydrogen phosphate-citric acid buffer solution, then adding α-amylase to hydrolyze for a fourth preset time, adding papain to hydrolyze for a fifth preset time, and then filtering to obtain a filtrate;

[0077] S23, concentrating the filtrate to obtain a concentrated solution;

[0078] S24, adding three times the volume of ethanol to the concentrated solution, letting it stand, and then filtering to obtain a filter residue;

[0079] S25, naturally air-drying the filter residue to obtain the SDF.

[0080] In step S22, in some embodiments, the sodium hydrogen phosphate-citric acid buffer solution is a sodium hydrogen phosphate-citric acid buffer solution with a pH of 6, and the preparation method of the sodium hydrogen phosphate-citric acid buffer solution with a pH of 6 comprises the steps of:

[0081] S221, providing a 0.2 mol / L aqueous solution of disodium hydrogen phosphate and a 0.1 mol / L aqueous solution of citric acid;

[0082] S222, mixing the sodium hydrogen phosphate aqueous solution and the citric acid aqueous solution in a volume ratio of 145.5:34.5 to obtain a sodium hydrogen phosphate-citric acid buffer solution with a pH of 6.

[0083] In step S22, in some embodiments, the fourth preset time is 60-70 min, for example, it can be 60 min, 62 min, 64 min, 65 min, 66 min, 68 min or 70 min, and the fifth preset time is 60-70 min, for example, it can be 60 min, 62 min, 64 min, 65 min, 66 min, 68 min or 70 min, etc.

[0084] In some embodiments, the mass ratio of the banana peel powder, α-amylase, and papain is 1000:(6.7-7.3):(4.7-5.3), for example, it can be 1000:6.7:4.7, 1000:6.7:5.3, 1000:7.3:4.7, 1000:7.3:5.3 or 1000:7:5, etc.

[0085] The following describes it in detail through specific embodiments.

[0086] a. The preparation method of banana peel particles used in the following implementation comprises the following steps:

[0087] Fresh banana peels were collected, washed with ultrapure water, placed in an oven, dried at 80°C to constant weight, and then crushed with an electronic constant speed pulverizer (purchased from Tianjin Test Instrument Co., Ltd., model FW177), and passed through an 80-mesh sieve to obtain banana peel particles.

[0088] b. The preparation method of the sodium hydrogen phosphate-citric acid buffer solution with a pH of 6.0 used in the following examples comprises the following steps:

[0089] Take an appropriate amount of disodium hydrogen phosphate, dissolve it in ultrapure water, and after stirring, obtain a disodium hydrogen phosphate aqueous solution with a concentration of 0.2 mol / L.

[0090] Take an appropriate amount of citric acid, dissolve it in ultrapure water, and stir to obtain a citric acid solution with a concentration of 0.1 mol / L.

[0091] 145.5 mL of a 0.2 mol / L sodium hydrogen phosphate aqueous solution and 34.5 mL of a 0.1 mol / L citric acid solution were mixed and stirred sufficiently to obtain 180 mL of a sodium hydrogen phosphate-citric acid buffer solution with a pH of 6.0.

[0092] c. The preparation method of SDF used in the following examples comprises the following steps (when more SDF is needed, the amount of each substance in the following steps is proportionally enlarged, or the following preparation steps are repeated to prepare more SDF):

[0093] Weigh 15g of dried banana peel powder into a 200mL beaker, add 180mL of sodium hydrogen phosphate-citric acid buffer solution with a pH of 6.0, place in a 95°C water bath, add 105.0mg of α-amylase for enzymolysis for 60min; after cooling, adjust the water bath temperature to 45°C, add 75.0mg of papain for enzymolysis for 60min. During the enzymolysis, be careful to avoid water evaporation.

[0094] Prepare two filter papers and filter the enzymatically hydrolyzed liquid while it is hot to obtain a filtrate and a filter residue.

[0095] The filter residue was repeatedly rinsed twice with 40 mL of distilled water, the obtained washing water was mixed with the filtrate, and concentrated in a 60° C. oven to remove excess water (favorable for the precipitation of ethanol) to obtain a concentrated solution.

[0096] Add 3 times the volume of 60℃ ethanol solution (wherein the mass content of ethanol is 95%) to the concentrated solution, let it stand at room temperature for 60 minutes, filter out the thick substance and remove the excess ethanol, place the obtained solid residue in a drying container and let it dry naturally to obtain SDF. The X-ray diffraction (XRD) pattern of SDF is shown in Figure 2 As shown in Figure 2, characteristic peaks are observed at 24° and 31° for 2θ; there is a weaker peak at 22° for 2θ, and several stronger diffraction peaks between 30° and 50°, which are consistent with the characteristic peaks given in the relevant literature; its Fourier transform infrared spectrum (FTIR) is shown in Figure 2 Figure 3 As shown in the FTIR image, the 3410 cm -1 、1617cm -1 、1500cm -1 、1418cm -1 At 3410cm -1 There is a broad and strong absorption peak near the , which is consistent with the characteristic peak given in the relevant literature.

[0097] Example 1

[0098] This embodiment provides a cleaning paste, which comprises the following components in parts by mass:

[0099] 0.5 parts of banana peel particles, 0.5 parts of SDF, 0.5 parts of dodecyl sulfopropyl betaine, 2 parts of sodium dodecyl sulfate, 2 parts of disodium ethylenediaminetetraacetic acid, 6 parts of stearic acid, 7.2 parts of 60% phosphoric acid, 5.4 parts of ethylene glycol monobutyl ether, 2.6 parts of glycerol, 16.5 parts of sulfonic acid, and 1.5 parts of dimethyl silicone oil.

[0100] The preparation method of the cleaning paste comprises the following steps:

[0101] The banana peel particles, SDF, sodium dodecyl sulfate, and disodium ethylenediaminetetraacetate in the above-mentioned mass parts are fully mixed to obtain a first mixture;

[0102] Adding the above-mentioned weight parts of sulfonic acid, 60% phosphoric acid, ethylene glycol monobutyl ether, glycerol, and dodecyl sulfopropyl betaine to the first mixture in sequence while stirring, stirring for 3 minutes, and then placing in a 95° C. water bath and stirring at a constant temperature for 10 minutes to obtain a second mixture;

[0103] Add the above-mentioned parts by weight of dimethyl silicone oil to the second mixture, and continue to stir at a constant temperature of 95° C. in a water bath for 10 minutes to obtain a third mixture;

[0104] Under the condition of continuous constant temperature stirring in a 95° C. water bath, add the above-mentioned parts by mass of stearic acid to the third mixture, stir at the constant temperature for 10 minutes, and let stand to condense to obtain a cleaning paste.

[0105] Example 2

[0106] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from Embodiment 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 0.5 parts of banana peel particles, 1 part of SDF, and 1 part of dodecyl sulfopropyl betaine.

[0107] Example 3

[0108] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 0.5 parts of banana peel particles, 1.5 parts of SDF, and 1.5 parts of dodecyl sulfopropyl betaine.

[0109] Example 4

[0110] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1 part of banana peel particles, 0.5 part of SDF, and 1 part of dodecyl sulfopropyl betaine.

[0111] Example 5

[0112] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1 part of banana peel particles, 1 part of SDF, and 1.5 parts of dodecyl sulfopropyl betaine.

[0113] Example 6

[0114] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1 part of banana peel particles, 1.5 parts of SDF, and 0.5 parts of dodecyl sulfopropyl betaine.

[0115] Example 7

[0116] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1.5 parts of banana peel particles, 0.5 parts of SDF, and 1.5 parts of dodecyl sulfopropyl betaine.

[0117] Example 8

[0118] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1.5 parts of banana peel particles, 1 part of SDF, and 0.5 part of dodecyl sulfopropyl betaine.

[0119] Example 9

[0120] This embodiment provides a cleaning paste and a preparation method thereof. The only difference from the cleaning paste in Example 1 is that the amounts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1.5 parts of banana peel particles, 1.5 parts of SDF, and 1 part of dodecyl sulfopropyl betaine.

[0121] Example 10

[0122] This embodiment provides a cleaning paste, which comprises the following components in parts by mass:

[0123] 0.5 parts of banana peel particles, 0.5 parts of SDF, 0.5 parts of dodecyl sulfopropyl betaine, 1 part of sodium dodecyl sulfate, 1 part of disodium ethylenediaminetetraacetate, 5 parts of stearic acid, 5.7 parts of 60% phosphoric acid solution, 4.5 parts of ethylene glycol monobutyl ether, 1.9 parts of glycerol, 12.4 parts of sulfonic acid, and 1.1 parts of dimethyl silicone oil.

[0124] The preparation method of the cleaning paste is basically the same as that of Example 1, except that the addition amount of each component is different from that of Example 1, and the preparation method of the cleaning paste adopts the amount of each component in Example 10. The cleaning paste in this example is dark brown, generally paste-like, non-flowable and thick.

[0125] Embodiment 11

[0126] This embodiment provides a cleaning paste and a preparation method thereof. The difference from the cleaning paste in Example 1 is that the parts of banana peel particles, SDF, and dodecyl sulfopropyl betaine in the cleaning paste are different. In this embodiment, there are 1 part of banana peel particles, 1 part of SDF, and 1.75 parts of dodecyl sulfopropyl betaine. The cleaning paste in this embodiment is dark brown, has a good paste shape, and has a suitable flowable viscosity.

[0127] Example 12

[0128] This embodiment provides a cleaning paste, which comprises the following components in parts by mass:

[0129] 1.5 parts of banana peel particles, 1.5 parts of SDF, 3 parts of dodecyl sulfopropyl betaine, 3 parts of sodium dodecyl sulfate, 3 parts of disodium ethylenediaminetetraacetate, 7 parts of stearic acid, 8.5 parts of 60% phosphoric acid solution, 6.3 parts of ethylene glycol monobutyl ether, 3.2 parts of glycerol, 20.6 parts of sulfonic acid, and 1.9 parts of dimethyl silicone oil.

[0130] The preparation method of the cleaning paste is basically the same as that of Example 1, except that the addition amount of each component is different from that of Example 1, and the preparation method of the cleaning paste adopts the amount of each component in Example 12. The cleaning paste in this example is brown, generally paste-like, fast flowing and thin in viscosity.

[0131] Comparative Example 1

[0132] This comparative example provides a cleaning cream and a preparation method thereof, which is different from Example 7 only in that no banana peel particles are added.

[0133] Comparative Example 2

[0134] This comparative example provides a cleaning paste and a preparation method thereof, which is different from Example 7 only in that SDF is not added.

[0135] Comparative Example 3

[0136] This comparative example provides a cleaning cream and a preparation method thereof, which is different from Example 7 only in that no banana peel particles and SDF are added.

[0137] The cleaning pastes in Examples 1-12 and Comparative Examples 1-3 were tested.

[0138] (1) Comparison of the cleaning pastes in Example 7, Comparative Example 1 and Comparative Example 3. Figure 4 As shown, they are dark brown, orange and yellow pastes respectively.

[0139] (2) Determination of decontamination rate

[0140] Take a kitchen grease sample and several metal pieces of known mass, evenly attach the kitchen grease sample to the metal pieces, the amount of grease on each metal piece is (0.15±0.01)g, and weigh them after natural air drying to obtain grease pieces;

[0141] Take 0.15 g of each of the cleaning pastes in Examples 1-9 above, dissolve them in 20 mL of water, and prepare a cleaning paste aqueous solution;

[0142] Place the metal sheet with oil stains in the cleaning paste aqueous solution, so that the liquid surface covers the dirty sheet, and oscillate back and forth at a constant speed of 40 rpm for 5 minutes in a 25°C water bath constant temperature oscillator to clean it;

[0143] Take out the metal sheet, dry it and weigh it, and calculate the decontamination rate. The calculation formula of the decontamination rate is:

[0144] Decontamination rate = (m1-m2) / (m1-m0)×100%

[0145] Among them, m0 is the mass of the metal sheet, m1 is the mass of the dirty sheet before cleaning, and m2 is the mass of the dirty sheet after cleaning.

[0146] The decontamination results of the cleaning pastes in various embodiments are shown in Table 1 below.

[0147] Table 1 Decontamination rate of the decontamination paste in Examples 1-9

[0148]

[0149] From the above results, it can be seen that the cleaning pastes in the embodiments all have good decontamination effects, among which the decontamination rate of the decontamination paste in Example 7 is the highest. At the same time, the influence of SDF on the decontamination efficiency of the cleaning paste is greater than that of other ingredients.

[0150] At the same time, under the same test conditions as above, the decontamination rates of existing cleaning creams or cleaning agents on the market were tested, and the results are shown in Table 2 below.

[0151] Table 2 Decontamination rate of existing cleaning pastes or cleaning agents

[0152]

[0153]

[0154] It can be seen that the decontamination cream provided by the present invention has a higher decontamination rate than existing products on the market.

[0155] (2) Determination of suspended solids

[0156] 1.5 g of each of the cleaning pastes in Examples 7, 10-12 and Comparative Examples 1-3 and two existing cleaning pastes (Bright Clean and Mr. Wei Meng) were placed in a beaker, and water was added to prepare a cleaning paste aqueous solution with a volume V of 100 mL. Then 1.5 g of an oily sample (taken from a range hood in a home kitchen) was added thereto, and then the mixture was transferred to a 100 mL volumetric flask and shaken thoroughly to obtain four different washing waste liquids;

[0157] Weigh four pieces of filter paper and record their mass as m0;

[0158] Use the suction filtration method, place the filter paper in a Buchner funnel, pour in the washing waste liquid for suction filtration, then place the filtered filter paper in an oven at 80°C to dry to constant weight, and record the mass as m1;

[0159] Then the suspension mass volume ratio = (m1-m0) / V.

[0160] The specific measurement results of suspended solid matter are shown in Table 3 below.

[0161] Table 3 Determination results of suspended solids

[0162]

[0163] As can be seen from Table 3, compared with the cleaning pastes containing only SDF, only banana peel particles, and no banana peel particles and SDF in Comparative Examples 1-3, the mass volume ratio of suspended matter in the washing waste liquid obtained by using the cleaning paste containing both banana peel particles and SDF in Examples 7, 10-12 is significantly reduced, indicating that the content of suspended matter in the washing waste liquid is reduced. Therefore, the cleaning pastes containing banana peel particles and SDF in Examples 7, 10-12 have a good oil adsorption effect and can significantly reduce the suspended matter in the washing waste liquid.

[0164] The residual suspended solids on the filter paper of each sample after filtration are as follows: Figure 5 As shown. Figure 5 It can be clearly seen that comparative examples 1-3 (corresponding to i-iii in the figure respectively) have more oily floating objects, while the washing waste liquid obtained by using the cleaning paste and Mr. Wei Meng and Mr. Liang Jing in Examples 7, 10, and 12 has less oily residue after filtration and more fiber adsorptive substances (corresponding to iV, Vi, V, Vii, and Viii in the figure respectively).

[0165] The comparison of the cleaning paste aqueous solution before and after cleaning using Mr. Weifeng, Example 10 and Example 12 is shown in the figure below. Figure 6As shown, it can be seen intuitively that although the strong alkaline detergent (Mr. Weifeng) has a good foaming effect, it has a weak ability to carry oil molecules. If the bottleneck of the volumetric flask is regarded as a water pipe, the water pipe is likely to be blocked after home cleaning. The cleaning pastes in Examples 10 and 12 have excellent properties for carrying oil molecules and are not easy to cause oil residues.

[0166] (3) Phosphorus content test

[0167] a. Prepare the following 6 solutions according to Table 4;

[0168] Table 4 Preparation methods of different solutions

[0169]

[0170]

[0171] b. Take 0.15g of each of the cleaning pastes in Examples 7, 10-12 and Comparative Examples 1-3, and prepare 100mL of a cleaning paste aqueous solution in a volumetric flask; add 4mL of potassium persulfate solution and 1mL of ascorbic acid solution to the cleaning paste aqueous solution, and after 30s, add 2mL of molybdate solution and mix thoroughly. After standing at room temperature for 15min, use a 10mm cuvette to measure the absorbance at a wavelength of 700nm with distilled water as a reference, and after deducting the absorbance of the blank test, obtain the absorbance of the blank test. Figure 7 The phosphorus content was obtained by looking up the standard curve of phosphorus shown in the figure (measured using standard phosphate solutions of different concentrations, specifically, taking 7 stoppered graduated tubes, adding 0.0mL, 0.50mL, 1.00mL, 3.00mL, 5.00mL, 10.0mL, and 15.0mL of the phosphate standard solution, adding water to 25mL, and then testing the absorbance respectively. The phosphorus content was plotted versus absorbance curve, i.e., the standard curve of phosphorus, through the measured absorbance and the known phosphorus content). The results are shown in Table 5 below.

[0172] Table 5 Phosphorus content determination results

[0173]

[0174] From the results in Table 5, it can be seen that compared with the cleaning pastes containing only SDF, only banana peel particles, and no banana peel particles and SDF in Comparative Examples 1-3, the phosphorus content of the cleaning pastes containing banana peel particles and SDF in Examples 7, 10-12 is significantly reduced. It can be inferred that the simultaneous presence of banana peel particles and SDF can reduce the phosphorus content in the washing waste liquid, and from the results of Comparative Examples 1 and 2, it can be seen that the ability of SDF to reduce the phosphorus content is slightly higher than that of banana peel particles. The above results show that the cleaning paste provided by the present invention has a good function of reducing the phosphorus content in the washing waste liquid.

[0175] (4) Corrosion rate measurement

[0176] Take 0.15 g of each of the cleaning pastes in Examples 7, 10-12 and two commercially available cleaning pastes (Bright Clean and Mr. Power), and prepare them into 100 mL of cleaning paste aqueous solutions. Wash the metal test piece, dry it in an oven (105±2)°C, and weigh M1. Then hang the test pieces in each cleaning paste aqueous solution, and place them in a constant temperature water bath (60±2)°C, and take them out after 2 hours. Wash with clean water first, then with anhydrous ethanol, and finally dry it in an oven (105±2)°C, and weigh M2;

[0177] Corrosion rate = (M1-M2) / M1×100%, 3 groups of samples were prepared from various cleaning pastes for testing and the average value was taken. The results are shown in Table 6 below.

[0178] Table 6 Corrosion rate measurement results

[0179]

[0180] It can be seen from the results in Table 6 that the corrosion rate of the cleaning paste provided by the present invention on metal sheets is ≤0.05%, which is extremely low in corrosiveness and is almost consistent with the corrosion rate of strong alkaline cleaners with lower corrosion rates sold on the market that meet national safety standards, and meets the tolerance standards for metal utensils.

[0181] (5) Determination of chemical oxygen demand

[0182] a. Prepare the following three solutions according to Table 7.

[0183] Table 7 Preparation of different solutions

[0184]

[0185] b. Pipette 10mL of potassium dichromate standard solution into a 500mL conical flask, dilute to 110mL with water, slowly add 30mL of concentrated sulfuric acid, mix well, add 3 drops of ferrous acid indicator solution after cooling, and titrate with ammonium ferrous sulfate. At the end point, the color of the solution changes from yellow to blue-green to reddish brown.

[0186] c[Fe(NH4)2(SO4)2]=0.0500×10.00 / V

[0187] Where c is the concentration of the ammonium ferrous sulfate standard solution (mol / L); V is the amount of the ammonium ferrous sulfate standard titration solution (mL). Because the actual concentration of the self-prepared ammonium ferrous sulfate standard solution will have an error with the pre-calculated concentration, this method is used to determine the actual concentration of the ammonium ferrous sulfate standard solution to reduce the measurement error.

[0188] c. Prepare sulfuric acid-silver sulfate solution. Add 1.0 g of silver sulfate to 100 mL of concentrated sulfuric acid, let stand for 1-2 days, and shake to dissolve.

[0189] d. Take 20.00mL of washing waste liquid (preparation method is the same as the preparation method of washing waste liquid in the determination of suspended matter) and place it in a 250mL ground-mouth reflux conical flask, accurately add 10.00mL of potassium dichromate standard solution and several small glass beads or zeolites, connect the ground-mouth reflux condenser, slowly add 30mL of sulfuric acid-silver sulfate solution from the top of the condenser, gently shake the conical flask to mix the solution, and heat to reflux for 2h. After cooling, rinse the condenser wall with 90mL of water and remove the conical flask. After the solution is cooled again, add 3 drops of ferrous iron indicator solution and titrate with ammonium ferrous sulfate standard solution. The color of the solution changes from yellow to blue-green and then to reddish brown, which is the heavy end point. Record the amount of ammonium ferrous sulfate standard solution. While measuring the water sample, take 20.00mL of redistilled water and perform a blank test according to the same operating steps. Record the amount of ammonium ferrous sulfate standard solution when titrating the blank.

[0190] e. Calculate chemical oxygen demand

[0191] CODCr(O2)=(V0-V1)×C×8×1000 / V

[0192] C——Concentration of ammonium ferrous sulfate standard solution

[0193] V——Volume of washing waste liquid

[0194] V0——Amount of ammonium ferrous sulfate standard solution used in blank titration

[0195] V1——Amount of ammonium ferrous sulfate standard solution used when titrating water sample

[0196] The specific results are shown in Table 8 below.

[0197] Table 8 Determination results of chemical oxygen demand of washing wastewater

[0198]

[0199] As shown in Table 8 above, compared with the cleaning pastes containing only SDF, banana peel particles, and no banana peel particles and SDF in Comparative Examples 1-3, the washing waste liquid obtained by using the cleaning pastes containing banana peel particles and SDF in Examples 7, 10-12 contains less reducing substances, among which the washing waste liquid obtained by using the cleaning paste in Example 7 has the lowest reducing substance content. Therefore, the presence of banana peel particles and SDF can reduce the reducing substance content in the washing waste liquid (because banana peel particles and SDF can react with reducing substances such as some metal ions in the washing waste liquid and reduce the reducing substance content by adsorption during the washing process), and the results of Comparative Examples 1 and 2 show that SDF has a higher ability to reduce the reducing substance content than banana peel particles. The above results show that the synergistic effect of SDF and banana peel particles can effectively reduce the chemical oxygen demand of the washing waste liquid. The chemical oxygen demand of the washing waste liquid obtained by using the cleaning paste in Example 12 is higher than that of the other samples. It is speculated that the cleaning paste contains more reducing glycerol, sulfonic acid and phosphoric acid. When the oil removal ability is similar, more potassium dichromate is consumed, so the volume of ammonium ferrous sulfate consumed during titration is smaller, resulting in a higher calculated chemical oxygen demand.

[0200] (6) Determination of low temperature stability and thermal stability

[0201] ① Low-temperature stability: The cleaning cream sample in Example 7 was placed in a refrigerator at (4±2)°C for 24 hours, and the product appearance was observed every 4 hours.

[0202] ② Thermal stability: The cleaning paste sample in Example 7 was placed in an incubator at (60±2)°C for 24 hours, and the product appearance was observed every 4 hours.

[0203] Take a small amount of sample from the cleaning paste and put it in a beaker to test the low temperature stability and thermal stability. Figure 8 shown.

[0204] Except for the physical changes of the paste type, which will be in a melting state at high temperature or in a solidified state at low temperature, there is no deterioration or odor. After standing for several hours at room temperature, it can also return to the original paste form, and there is no significant effect on the decontamination rate. Therefore, the cleaning paste has good thermal stability and low temperature stability.

[0205] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A cleaning paste, characterized in that: The cleaning paste comprises the following components by mass: 1.5 parts of banana peel particles, 0.5 parts of soluble dietary fiber, 1.5 parts of dodecyl sulfopropyl betaine, 2 parts of sodium dodecyl sulfate, 2 parts of disodium edetate, 6 parts of stearic acid, 7.2 parts of 60% phosphoric acid, 5.4 parts of ethylene glycol monobutyl ether, 2.6 parts of glycerol, 16.5 parts of sulfonic acid, and 1.5 parts of dimethyl silicone oil; Wherein, 60% phosphoric acid means a phosphoric acid aqueous solution having a phosphoric acid content of 60% by mass; The preparation method of the soluble dietary fiber comprises the steps of: Provide banana peel powder; The banana peel powder is added to a sodium hydrogen phosphate-citric acid buffer solution, and then α-amylase is added to hydrolyze for a fourth preset time, and papain is added to hydrolyze for a fifth preset time, and then suction filtration is performed to obtain a filtrate; Concentrating the filtrate to obtain a concentrated solution; Add three times the volume of ethanol to the concentrated solution, let it stand, and then perform suction filtration to obtain a filter residue; The soluble dietary fiber is obtained by naturally air-drying the filter residue.

2. The cleaning paste according to claim 1, characterized in that The fourth preset time is 60-70 minutes, and the fifth preset time is 60-70 minutes; and / or, The mass ratio of the banana peel powder, α-amylase and papain is 1000:(6.7-7.3):(4.7-5.3).

3. A method for preparing the cleaning paste according to claim 1, characterized in that: Includes steps: According to the components and weight parts of the cleaning paste of claim 1, banana peel particles, soluble dietary fiber, sodium dodecyl sulfonate, and disodium ethylenediaminetetraacetate are mixed to obtain a first mixture; sulfonic acid, 60% phosphoric acid, ethylene glycol monobutyl ether, glycerol, and dodecyl sulfopropyl betaine are added to the first mixture in sequence while stirring, and after stirring for 3 minutes, the mixture is placed in a 95° C. water bath and stirred at a constant temperature for 10 minutes to obtain a second mixture; Add dimethyl silicone oil to the second mixture, and continue to stir at a constant temperature of 95° C. in a water bath for 10 minutes to obtain a third mixture; Under the condition of constant temperature stirring in a 95° C. water bath, stearic acid was added to the third mixture, and the mixture was stirred at the constant temperature for 10 minutes. After standing and condensing, a cleaning paste was obtained.

4. The method for preparing the cleaning paste according to claim 3, characterized in that: The preparation method of the banana peel particles comprises the steps of: Provide banana peels; The banana peel is washed, dried to constant weight, and then crushed and passed through a 80-120 mesh sieve to obtain the banana peel particles.

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