A hard surface cleaning lotion containing modified microcrystalline particles

Abstract

The present invention discloses a hard surface cleaning milk containing modified microcrystalline particles. The hard surface cleaning milk is composed of the following components in weight percentage: wherein the modified microcrystalline particles are hydrophobically modified silica. The present invention uses specially structured hydrophobically modified microcrystalline particles as abrasive particles, and cooperates with alkaline additives and surfactants to achieve non-destructive cleaning of hard surfaces such as tiles, marble, and stainless steel, and after cleaning, a protective film is formed on the hard surface to prevent the deposition of soap scum and grease, thereby facilitating secondary cleaning and reducing the frequency of cleaning.

Description

Technical Field

[0001] The invention belongs to the technical field of household hard surface cleaning, and in particular relates to a hard surface cleaning milk containing modified microcrystalline particles. Background Art

[0002] The heavy oil stains that have not been cleaned for a long time on the kitchen gas stove, pot bottoms and range hoods, the mixture of scale and soap scum that has accumulated over the years on the bathroom glass, faucets and showers, and the yellow scale in the cracks between the wall tiles and the floor, these are all difficult and difficult points in household cleaning. It is difficult to clean them thoroughly with ordinary oil cleaners, bathroom cleaners and other products.

[0003] At present, most hard surface cleaners on the market use a combination of surfactants and solvents to achieve cleaning effects. However, this type of product has some disadvantages: first, solvents with strong dissolving power may pose a potential inhalation hazard to the human body; second, chemical cleaning power alone cannot completely remove heavy dirt in small gaps, so this type of product is lacking in safety, environmental protection, efficiency, etc. In addition to solvent-based hard surface cleaners, there is also a type of hard surface cleaner containing abrasive particles on the market, which uses surfactants with chemical decontamination functions and abrasive particles with physical descaling effects to remove dirt adsorbed on hard surfaces. Although the physical effect of abrasive particles improves the cleaning efficiency of the product, it may also cause irreversible damage to the surface of the appliance. In addition, the components of these abrasive particles are generally quartz sand, calcium carbonate, zinc oxide, etc., their surfaces are hydrophilic, and their efficiency is relatively low when removing oily dirt from hard surfaces. Summary of the invention

[0004] The object of the present invention is to provide a hard surface cleaning emulsion containing modified microcrystalline particles, so as to effectively solve the deficiencies of the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme:

[0006] A hard surface cleaning emulsion containing modified microcrystalline particles is composed of the following components in percentage by weight:

[0007] Modified microcrystalline particles 1.0%~35.0%

[0008] Alkaline additive 8.0%~15.0%

[0009] Surfactant 5.0%~10.0%

[0010] Surface modified polymer 0.5%~1.5%

[0011] Other additives 0.5%~2.5%

[0012] Deionized water balance;

[0013] Wherein, the modified microcrystalline particles are hydrophobically modified silicon dioxide.

[0014] Preferably, the hydrophobically modified silica is any one of fatty acids, thiols, chlorosilanes, and siloxanes with a carbon chain length of 12 to 18, or at least two modified silicas. The hydrophobically modified silica self-assembles through the hydrophobic interaction force of the long carbon chain, and self-assembles from nano-scale hydrophobic silica into micron-scale hydrophobic silica crystals, referred to as microcrystals. The surface angular size of the hydrophobically modified microcrystalline silica is smaller, and compared with ordinary silica, it causes less damage to the surface of the appliance. In addition, the hydrophobic group makes the silica more oleophilic, which can increase the adsorption rate of oily dirt during the cleaning process, thereby improving the cleaning efficiency.

[0015] Preferably, the particle size of the hydrophobically modified silica is 100 to 300 meshes.

[0016] Preferably, the weight percentage of the hydrophobically modified silica is 5.0% to 35.0%. Further preferably, the weight percentage of the hydrophobically modified silica is 10.0% to 35.0%. Even more preferably, the weight percentage of the hydrophobically modified silica is 20.0% to 35%. Depending on the severity of the dirt and the material of the surface to be cleaned, by adjusting the content of the hydrophobically modified silica, cleaning milk products with different effects can be prepared.

[0017] Preferably, the alkaline auxiliary agent is any one of soda ash, baking soda, sodium silicate, or a mixture of at least two thereof. The alkaline auxiliary agent can synergize with the surfactant to improve the cleaning efficiency of the surfactant.

[0018] Preferably, the surfactant contains 2.0% to 9.5% of anionic surfactant; the anionic surfactant is any one of sodium fatty alcohol polyoxyethylene ether sulfate, sodium fatty alcohol sulfate, sodium alkylbenzene sulfonate, sodium alkyl sulfonate, sodium α-olefin sulfonate, or a mixture of at least two of them.

[0019] Preferably, the surfactant further contains 0.5% to 8.0% of a nonionic surfactant; the nonionic surfactant is any one of linear / branched fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene block ether, and alkyl glucoside, or a mixture of at least two thereof.

[0020] Preferably, the surfactant further comprises a zwitterionic surfactant, the content of the zwitterionic surfactant is 0.45% to 2.0%, and the amphoteric surfactant is any one of alkylamine oxide, alkylamideamine oxide, alkylbetaine and alkylamidebetaine, or a mixture of at least two thereof.

[0021] Preferably, the surface modification polymer is FLOCLEAN HSC 536. The surface modification polymer can form a protective film on the surface to make it smoother, thereby preventing the accumulation of water droplets and dirt. During the next cleaning process, the dirt will be easier to remove, thereby reducing the number of cleaning times and making cleaning easier. In addition, FLOCLEAN HSC 536 is conducive to the spreading and wetting of the cleaning milk on the hard surface, and synergistically enhances the cleaning performance with the surfactant.

[0022] Preferably, the other auxiliary agent is any one of a pH regulator, a pigment, a flavor, a chelating agent, a preservative, and a rheology regulator, or a mixture of at least two of them.

[0023] The present invention has the following beneficial effects:

[0024] (1) The present invention uses hydrophobically modified microcrystalline silica particles with a special structure, which have smaller surface edges and corners and cause less damage to surfaces such as ceramics, marble, and stainless steel. At the same time, the hydrophobic groups of the modified microcrystalline particles make them more lipophilic than ordinary silica. When cleaning oily dirt, more oil can be adsorbed on the microcrystalline particles, thereby improving the cleaning effect.

[0025] (2) The present invention combines the physical cleaning power of microcrystalline particles with the chemical cleaning power of surfactants in an alkaline system, and adds specific surface-modified polymers to improve the resistance to dirt deposition and easy cleaning of hard surfaces after cleaning. This not only improves the efficiency of a single cleaning, but also reduces the frequency of cleaning, allowing consumers to save time and effort in maintaining the cleanliness of household hard surfaces. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is clearly and completely described below in conjunction with embodiments, but the implementation manner of the present invention is not limited thereto.

[0027] The hard surface cleaning emulsion containing modified microcrystalline particles of the present invention is composed of the following components in percentage by weight:

[0028]

[0029] Wherein, the modified microcrystalline particles are hydrophobically modified silicon dioxide.

[0030] The hydrophobically modified silica is silica modified by any one of fatty acids, mercaptans, chlorosilanes, and siloxanes with a carbon chain length of 12 to 18, or at least two of them.

[0031] As a preferred embodiment, hydrophobically modified silica can be obtained from Shanghai MacLean Biochemical Technology Co., Ltd., Anhui Celico Silicon Materials Co., Ltd.'s SK and SDR series, Evonik's Series, Cabot Corporation series and Wacker Chemie AG's HDK series.

[0032] The particle size of the hydrophobically modified silicon dioxide is 100 to 300 meshes.

[0033] The weight percentage of the hydrophobically modified silica is 5.0% to 35.0%, or the weight percentage of the hydrophobically modified silica is 10.0% to 35.0%, or the weight percentage of the hydrophobically modified silica is 20.0% to 35%.

[0034] The alkaline auxiliary agent is any one of soda ash, baking soda, sodium silicate, or a mixture of at least two of them.

[0035] The surfactant contains 2.0% to 9.5% of anionic surfactant; the anionic surfactant is any one of sodium fatty alcohol polyoxyethylene ether sulfate, sodium fatty alcohol sulfate, sodium alkylbenzene sulfonate, sodium alkyl sulfonate, sodium α-olefin sulfonate, or a mixture of at least two of them.

[0036] The surfactant contains 0.5% to 8.0% of a nonionic surfactant; the nonionic surfactant is any one of linear / branched fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene block ether, and alkyl glucoside, or a mixture of at least two of them.

[0037] The surfactant may also contain a zwitterionic surfactant, the content of which is 0.45% to 2.0%. The amphoteric surfactant is any one of alkylamine oxide, alkylamideamine oxide, alkylbetaine and alkylamidebetaine, or a mixture of at least two of them.

[0038] The surface modified polymer is FLOCLEAN HSC 536.

[0039] The other auxiliary agents are any one of a pH regulator, a pigment, a flavor, a chelating agent, a preservative, and a rheology regulator, or a mixture of at least two of them.

[0040] The present invention is prepared by various methods well known to those skilled in the art, and the specific preparation sequence should be selected according to the state and effect of the components in the solution, as well as the stability of the components. Unless otherwise specified, all percentages, fractions and ratios are calculated by the total weight of the composition of the present invention.

[0041] The embodiments and comparative examples can be prepared by the following steps:

[0042] 1) Add deionized water and alkaline additive into the reaction pot and stir until completely dissolved;

[0043] 2) adding anionic surfactant, nonionic surfactant and zwitterionic surfactant in sequence, and stirring until the solution is uniform;

[0044] 3) Add modified microcrystalline particles and stir evenly.

[0045] 4) Add other additives, stir evenly, remove from the pot, and conduct performance test.

[0046] The trade names and abbreviations used in the embodiments and comparative examples are as follows:

[0047] LAS: linear alkylbenzene sulfonic acid, carbon chain length is 10-14, anionic surfactant;

[0048] AES: sodium fatty alcohol polyoxyethylene ether sulfate, the carbon chain length of the fatty alcohol is 12-14, the average degree of ethoxylation is 3, the active matter concentration is 70%, and it is an anionic surfactant;

[0049] AOS: sodium α-olefin sulfonate, active matter concentration 35%, anionic surfactant;

[0050] SAS-60: Sodium secondary alkyl sulfonate, active matter concentration 60%, anionic surfactant;

[0051] AEO-7: fatty alcohol polyoxyethylene ether, average degree of ethoxylation is 7, nonionic surfactant;

[0052] AEO-9: fatty alcohol polyoxyethylene ether, average degree of ethoxylation is 9, nonionic surfactant;

[0053] APG0810: Alkyl polyglycoside, alkyl carbon number is 8-10, active matter concentration is 50%, non-ionic surfactant;

[0054] MARLOX FK86: fatty alcohol polyoxyethylene / polyoxypropylene block ether, nonionic surfactant;

[0055] CAB: Cocamidopropyl betaine, 35% active concentration, zwitterionic surfactant;

[0056] HS-C: Rheology regulator, high molecular polymer.

[0057] HPMC: rheology regulator, hydroxypropyl methylcellulose ether;

[0058] GLDA: Chelating agent, tetrasodium glutamate diacetate.

[0059] Performance Testing:

[0060] Preparation method of oil stain test piece: refer to the raw materials, equipment, dirt and test piece preparation process in A.2 to A.4.2 of Appendix A of GB / T 35833-2018 Kitchen Oil Stain Cleaner.

[0061] Since the cleaning milk exerts its decontamination effect through the combined action of physics and chemistry, the decontamination method in GB / T 35833-2018 is not suitable for testing the effect of the present invention.

[0062] Preparation method of soap scum test piece: add 10mL of 10% sodium cocoate solution into a petri dish, and place a stainless steel test piece (m 0 ) and add 2g of calcium chloride solution and stir evenly. After placing in a 60℃ oven for 24 hours, take out the test piece with tweezers and continue to dry in a 60℃ oven until constant weight, and weigh the weight of the dirty piece before washing (m 1 ).

[0063] Dirt removal test: Evenly drip a sample with a total weight of 1.00g on the surface of the aged dirt specimen, cover the surface of the dirt specimen with a coral fleece cloth (size 8mm×6mm, water control rate 10%), wipe back and forth evenly and forcefully 10 times (one back and forth counts as one time), rinse twice with 500g of tap water, take out and dry it in a 60℃ oven again, and then weigh it.

[0064] The removal rate is calculated according to the following formula:

[0065]

[0066] Where:

[0067] X 1 ——Oil removal rate;

[0068] Y 1 ——Soap scum removal rate

[0069] m 2 ——The weight of the dirty piece after washing, g

[0070] m 1 ——The weight of the dirty piece before washing, g

[0071] m 0 ——weight of the test piece, g

[0072] Secondary dirt removal test: Dry the cleaned sample and prepare an oil test piece again according to GB / T 35833-2018 (or prepare a soap test piece according to the preparation method of soap test pieces), and then test it according to the above dirt removal test. The calculation method of secondary dirt removal rate is the same, with X 2 (Oil stain) / Y 2 (soap scum) indicates.

[0073] Wear observation: Observe the wear condition of the stainless steel specimen surface with a 10x magnifying glass.

[0074] The formulations and performance test results of Examples 1 to 8 and Comparative Examples 1 to 9 are shown in Tables 1, 2, 3 and 4. It should be noted that the weight percentage of each surfactant in Tables 1 to 4 is the weight percentage of the actual product.

[0075] Table 1

[0076]

[0077]

[0078] In Table 1, Example 1 and Comparative Example 1 are comparisons of the effects of modified microcrystalline particles and conventional silicon dioxide particles in cleansing milk. 1 The oil removal rate shows that the hydrophobically modified silica microcrystalline particles used in the present invention have a better oil removal effect than conventional silica particles. When the particles are physically rubbed against a hard surface, due to their hydrophobic and lipophilic properties, more oil can be adsorbed on the particle surface, thereby improving the decontamination effect. In addition, the modified microcrystalline particles have smaller edges and corners, and basically no wear on the surface during the cleaning process, while the surface edges and corners of conventional silica are sharper, resulting in more severe wear. The results of Example 2 and Comparative Example 2 show the role of the surface modified polymer FLOCLEAN HSC 536 in the formula: Example 2 containing the surface modified polymer has a secondary oil removal rate of X 2 Specific oil removal rate X 1 Higher than the control sample without surface modified polymer, the secondary oil removal rate is X 2 Specific oil removal rate X 1 This is because the polymer can form a thin film on the hard surface to prevent the deposition of dirt. When the dirt performance test is applied again on the cleaned test piece, the binding force between the dirt and the test piece is relatively smaller, so it is easier to clean. 1 and X of Comparative Example 2 1 The comparison results show that FLOCLEAN HSC 536 can also synergistically enhance the oil cleaning effect in the present invention.

[0079] Table 2

[0080]

[0081]

[0082] It can be seen from Example 3 and Comparative Example 3 in Table 2 that alkaline additives are also indispensable for the beneficial effects of the present invention. Under alkaline conditions, oil stains are more easily emulsified, which can enhance the effects of surfactants and modified microcrystalline particles. The alkaline additive selected in the present invention is a strong base weak acid salt, which, although alkaline, is relatively mild and more user-friendly. Example 4 and Comparative Example 4 compare the differences between the compound anionic nonionic surfactant and the full nonionic surfactant system in this formula. The results show that the synergistic degreasing effect of the anionic nonionic surfactant and the modified microcrystalline particles of the present invention is better than that of the full nonionic surfactant.

[0083] Table 3

[0084]

[0085]

[0086] Example 5 and Comparative Example 5 are respectively the cleaning effects of oil stains with and without modified microcrystalline particles. 1 It can be seen that the physical effect and lipophilicity of the modified microcrystalline particles greatly improve the cleaning effect of the cleansing milk. 2 The data show that FLOCLEAN HSC 536 can also improve the secondary cleaning efficiency in the cleansing milk formula of pure chemical action, but its synergistic ability is reduced compared with the formula framework of the present invention. Therefore, the modified microcrystalline particles and the surface-modified polymer FLOCLEAN HSC536 are a better combination. Comparative Example 6 is based on Example 6 without the modified microcrystalline particles and the surface-modified polymer. 1 and X 2 The decreases were 14.1% and 23.7%, respectively, which again demonstrates the importance of modified microcrystalline particles and surface-modified polymers in the present invention.

[0087] Table 4

[0088]

[0089]

[0090] The cleaning effect of the cleaning milks in Examples 7, 8 and Comparative Examples 7, 8 and 9 on cleaning soap scum on the surface of stainless steel. Compared with oil scum, soap scum is easier to clean. 1 Data comparison shows that adding a small amount of modified microcrystalline particles can improve the soap scum removal effect. 2 The results show that FLOCLEAN HSC 536 can also prevent soap scum deposition and improve cleaning efficiency. From Example 8 and Comparative Example 9, it can be seen that compared with conventional silica, the modified microcrystalline silica particles cause less damage to the equipment and have better cleaning effect and anti-soap scum deposition effect.

Claims

1. A hard surface cleaning lotion containing modified microcrystalline particles, characterized in that: It is composed of the following components in weight percentage: Wherein, the modified microcrystalline particles are hydrophobically modified silica; the hydrophobically modified silica is silica modified by any one or at least two of fatty acids, thiols, chlorosilanes, and siloxanes with a carbon chain length of 12 to 18; The alkaline auxiliary agent is any one of soda ash, baking soda, sodium silicate, or a mixture of at least two thereof; The surface modification polymer is FLOCLEAN HSC 536.

2. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The particle size of the hydrophobically modified silica is 100 to 300 meshes.

3. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The weight percentage of the hydrophobically modified silica is 5.0% to 35.0%.

4. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The weight percentage of the hydrophobically modified silica is 10.0% to 35.0%, 5. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The weight percentage of the hydrophobically modified silica is 20.0% to 35%.

6. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The surfactant contains 2.0% to 9.5% of anionic surfactant; the anionic surfactant is any one of sodium fatty alcohol polyoxyethylene ether sulfate, sodium fatty alcohol sulfate, sodium alkylbenzene sulfonate, sodium alkyl sulfonate, sodium α-olefin sulfonate, or a mixture of at least two of them.

7. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The surfactant contains 0.5% to 8.0% of a nonionic surfactant; the nonionic surfactant is any one of linear / branched fatty alcohol polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene block ether, and alkyl glucoside, or a mixture of at least two of them.

8. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The surfactant contains a zwitterionic surfactant, the content of which is 0.45% to 2.0%. The amphoteric surfactant is any one of alkylamine oxide, alkylamideamine oxide, alkylbetaine and alkylamidebetaine, or a mixture of at least two of them.

9. A hard surface cleaning emulsion containing modified microcrystalline particles according to claim 1, characterized in that: The other auxiliary agents are any one of a pH regulator, a pigment, a flavor, a chelating agent, a preservative, and a rheology regulator, or a mixture of at least two of them.

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