Automotive cleaner and method of making same

Abstract

The present invention provides a car cleaner and a method of preparing the same, and more specifically, to a cleaner comprising a first mixture containing sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate, and propylene glycol; a second mixture containing alogeswood extract and sodium hexametaphosphate ((NaPO3)6); and a third mixture containing ethanol, a fragrance, and sodium lauryl sulfate.

Description

Technical Field

[0001] This invention relates to the technical field of automotive cleaners and their preparation methods, and particularly to an automotive cleaner and its preparation method that has excellent cleaning power, antibacterial properties, uniform antifouling properties, and improved deodorizing ability. Background Technology

[0002] Cleaning agents primarily contain surfactants (surface active agents) to remove contaminants. Specifically, these traditional cleaning agents utilize compositions containing surfactants to remove various contaminants adhering to the painted surfaces, glass, wheels, tires, and other external surfaces of automobiles, as well as to remove contaminants inside the vehicle caused by dust, dirt, oil stains, and other factors. Cleaning agents can also be used as foam cleaners. Known methods for generating foam cleaners from undiluted cleaning agents include methods using pump-type foamers, methods using aerosols, and methods using electric mechanisms.

[0003] Surfactants are substances that adsorb at interfaces in dilute solutions, significantly reducing surface tension. These surfactants typically possess two different chemical functional groups (hydrophilic and hydrophobic groups) within a single molecule. Based on the size of the hydrophilic and hydrophobic groups, they can be classified into water-soluble surfactants and oil-soluble surfactants. Water-soluble surfactants are further classified into ionic and nonionic surfactants based on whether their hydrophilic portion is charged. Ionic surfactants are further subdivided into anionic surfactants, cationic surfactants, and amphoteric surfactants.

[0004] As prior art, Korean Patent No. 10-1343208 discloses an industrial cleaner for removing oil stains. The cleaner is composed of water, surfactant, sodium metasilicate nonahydrate, sodium pyrophosphate, EDTA (ethylenediaminetetraacetic acid), and soda ash. The surfactant is composed of three nonionic surfactants: polyethylene glycol-p-isooctylphenyl ether and propylene glycol, and anionic surfactant sodium lauryl sulfate. This industrial cleaner is environmentally friendly.

[0005] On the other hand, Korean Patent No. 10-1583189 relates to an environmentally friendly cleaning agent. To provide an environmentally friendly cleaning agent that effectively removes oil stains, maintains its anti-fouling properties for a long time, does not cause turbidity, is odorless, and is easy to use indoors, it discloses a cleaning agent comprising surfactants, inorganic oxides, solvents, epoxy silanes, methyl silicates, and fluorides. However, due to the low water solubility and dispersibility of epoxy silanes, this prior art has difficulty achieving uniform anti-fouling properties and suffers from the problem of generating odors.

[0006] Therefore, traditional cleaning agents are mainly used to clean dust, dirt, oil stains and other pollutants inside cars. However, there is a need to develop a cleaning agent that not only has excellent cleaning power, but also improves its ability to achieve uniform stain resistance and deodorization.

[0007] Therefore, the purpose of this invention is to provide an automotive cleaner and its preparation method that have excellent cleaning power, antibacterial properties, uniform antifouling properties, and improved deodorizing ability. Summary of the Invention

[0008] To achieve the above objectives, the present invention provides a cleaning agent comprising: a first mixture containing sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate and propylene glycol; a second mixture containing sappanwood extract and sodium hexametaphosphate ((NaPO3)6); and a third mixture containing ethanol, fragrance and sodium lauryl sulfate.

[0009] Furthermore, in the cleaning agent of one embodiment of the present invention, the first mixture may contain 10-30 parts by weight of sodium metasilicate nonahydrate, 3-10 parts by weight of soda ash, 0.5-3 parts by weight of sodium pyrophosphate, 0.2-3 parts by weight of sorbitan monooleate, and 1-10 parts by weight of propylene glycol, relative to 100 parts by weight of purified water.

[0010] Furthermore, in the cleaning agent of one embodiment of the present invention, the weight ratio of the sappanwood extract to sodium hexametaphosphate ((NaPO3)6) is 1:0.1 to 1.

[0011] Furthermore, in a cleaning agent according to one embodiment of the present invention, the sappanwood extract is a fermented sappanwood extract obtained by microbial fermentation of sappanwood.

[0012] Furthermore, in a cleaning agent according to one embodiment of the present invention, the sappanwood fermentation extract is obtained by adding Streptococcus thermophilus to a mixture of sappanwood ethanol extract, molasses and purified water for fermentation.

[0013] Furthermore, in one embodiment of the cleaning agent of the present invention, the cleaning agent of the present invention may also contain pine needle oil.

[0014] The pine needle oil should preferably be added at a ratio of 0.5-2 parts by weight to 100 parts by weight of the cleaning agent.

[0015] On the other hand, the present invention provides a method for preparing a cleaning agent, comprising the following steps: adding sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate and propylene glycol to purified water and stirring to generate a first mixture (S10); extracting Casesalpinia sappan powder with a solvent to obtain a Casesalpinia sappan extract (S20); adding the Casesalpinia sappan extract and sodium hexametaphosphate ((NaPO3)6) to the first mixture and stirring to generate a second mixture (S30); adding ethanol, fragrance and sodium lauryl sulfate and stirring to generate a third mixture (S40); adding the third mixture to the second mixture and stirring to prepare a cleaning agent (S50).

[0016] Furthermore, in the preparation method of the detergent in one embodiment of the present invention, the step of obtaining the sappanwood extract (S20) may include: extracting sappanwood powder with ethanol to obtain sappanwood ethanol extract (S22); and adding Streptococcus thermophilus to a mixture of the sappanwood ethanol extract, molasses and purified water for fermentation to obtain sappanwood fermentation extract (S24).

[0017] The present invention can achieve the following beneficial effects: According to the car cleaner and its preparation method, the present invention can provide a car cleaner with excellent cleaning power, antibacterial properties, uniform antifouling properties and improved deodorizing ability.

[0018] Furthermore, by using ethanol and surfactants in combination, this invention can efficiently remove accumulated pollutants by utilizing the foaming effect generated during the spraying of propellant.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a flowchart of a cleaning agent preparation method according to an embodiment of the present invention. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] This invention can be modified in many ways and has many embodiments. Specific embodiments will be described in detail below.

[0025] The cleaning agent of one embodiment of the present invention can effectively remove dirt from car wheels, tiles, interior materials, etc., as well as dirt from building interior and exterior walls, and oil stains from machine tools, etc. The cleaning agent comprises: a first mixture containing sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate, and propylene glycol; a second mixture containing sappanwood extract and sodium hexametaphosphate; and a third mixture containing ethanol, fragrance, and sodium lauryl sulfate.

[0026] This invention uses a combination of two surfactants to improve cleaning power. By combining the nonionic surfactant propylene glycol and the anionic surfactant sodium lauryl sulfate, the cleaning power can be improved.

[0027] Propylene glycol can reduce surface tension, while sodium lauryl sulfate, as an anionic surfactant, acts as a foaming agent to generate foam.

[0028] The first mixture of the present invention comprises sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate and propylene glycol.

[0029] Sodium metasilicate nonahydrate is an alkaline salt that is readily soluble in water and has cleaning properties.

[0030] Sodium carbonate (sodium carbonate) has an alkaline water-softening effect, can adjust acidity, and also removes carbon dioxide.

[0031] Sodium pyrophosphate, as a detergent additive, has the function of decomposing oil stains and chelating metal components such as calcium (Ca), magnesium (Mg), sodium (Na), and iron (Fe). It can block the chemical reaction of metal ions, prevent precipitation, and also prevent oxidation and discoloration.

[0032] Sorbitan monooleate has the functions of emulsifying and decomposing animal and vegetable oils, enhancing cleaning power, and preventing recontamination.

[0033] The first mixture preferably contains, relative to 100 parts by weight of purified water, 10-30 parts by weight of sodium metasilicate nonahydrate, 3-10 parts by weight of soda ash, 0.5-3 parts by weight of sodium pyrophosphate, 0.2-3 parts by weight of sorbitan monooleate, and 1-10 parts by weight of propylene glycol.

[0034] The second mixture contains sappanwood extract and sodium hexametaphosphate ((NaPO3)6).

[0035] Sappanwood (Cassalpinia sappan) is a deciduous shrub belonging to the legume family (Liguminosae) that is distributed in tropical Asian regions such as India, Malaysia, and southern China. It can be used as a red dye, and its heartwood is used in traditional Chinese medicine as an analgesic and anti-inflammatory herb.

[0036] The sappanwood extract of the present invention is obtained by pulverizing the bark-removed sappanwood heartwood into powder of a certain size, and then extracting it with a solvent, or by fermenting the solvent extract.

[0037] The preferred sappanwood extract is a fermented sappanwood extract obtained by microbial fermentation of sappanwood.

[0038] Here, the sappanwood fermentation extract is obtained by adding Streptococcus thermophilus to a mixture of sappanwood ethanol extract, molasses and purified water for fermentation.

[0039] The fermentation process utilizes thermophilic streptococci to decompose the organic matter in the heartwood of sappanwood, inducing the formation of active ingredients.

[0040] Streptococcus thermophilus is a Gram-positive bacterium, belonging to the fermentative facultative anaerobic bacteria, and is classified as a lactic acid bacteria. The optimal growth temperature range for Streptococcus thermophilus is 35-42℃.

[0041] The sappanwood fermentation extract of the present invention is preferably prepared by inoculating Streptococcus thermophilus in a sterile MRS medium to prepare a seed culture, and then adding the Streptococcus thermophilus seed culture to a mixture of freeze-dried sappanwood ethanol extract, molasses and purified water for fermentation to prepare the sappanwood fermentation extract.

[0042] The microorganisms used in this invention can be obtained from seed microorganisms obtained from microbial depositories (such as KCCM, KCTC, etc.), or obtained through microbial acquisition methods known in the art and then cultured for use.

[0043] Sodium hexametaphosphate (NaPO3)6 is a white or colorless solid that is strongly alkaline and has degreasing and cleaning properties.

[0044] At this point, the preferred weight ratio of the sappanwood extract to sodium hexametaphosphate ((NaPO3)6) is 1:0.1-1.

[0045] In particular, unlike the ethanol extract of sappanwood, the fermented extract of sappanwood of the present invention, when mixed with sodium hexametaphosphate ((NaPO3)6) which has degreasing and cleaning effects, exhibits a significant improvement in anti-fouling and deodorizing abilities.

[0046] The third mixture contains ethanol, flavoring, and sodium lauryl sulfate.

[0047] Ethanol has bactericidal and disinfecting properties, and the purpose of adding ethanol is to ensure that the fragrance is evenly dispersed.

[0048] Fragrances are used to mask odors and can include lavender (Lavender; Lavandula spica) or peppermint (Mint; Mentha spp.), with lavender (Lavender; Lavandula spica) being preferred.

[0049] Sodium lauryl sulfate is added to the third mixture as a foaming agent to generate foam.

[0050] At this point, the weight ratio of ethanol to sodium lauryl sulfate is preferably 1:0.5-2.

[0051] Furthermore, in one embodiment of the present invention, the cleaning agent of the present invention may also contain pine needle oil.

[0052] Pine needle oil is extracted through the distillation of pine needles and is known to help cleanse blood vessels, promote blood circulation, and alleviate heart fatigue. The main component of pine needle oil is hydroxyl radicals, which have antioxidant properties effective against bacteria such as Escherichia coli and Staphylococcus aureus.

[0053] The pine needle oil should preferably be added at a ratio of 0.5-2 parts by weight to 100 parts by weight of the cleaning agent.

[0054] On the other hand, the present invention provides a method for preparing a cleaning agent, comprising the following steps: adding sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate and propylene glycol to purified water and stirring to generate a first mixture (S10); extracting Casesalpinia sappan powder with a solvent to obtain a Casesalpinia sappan extract (S20); adding the Casesalpinia sappan extract and sodium hexametaphosphate ((NaPO3)6) to the first mixture and stirring to generate a second mixture (S30); adding ethanol, fragrance and sodium lauryl sulfate and stirring to generate a third mixture (S40); adding the third mixture to the second mixture and stirring to prepare a cleaning agent (S50).

[0055] Here, the step of obtaining the sappanwood extract (S20) may include: extracting sappanwood powder with ethanol to obtain sappanwood ethanol extract (S22); and adding Streptococcus thermophilus to a mixture of the sappanwood ethanol extract, molasses and purified water for fermentation to obtain sappanwood fermentation extract (S24).

[0056] The car cleaner and its preparation method according to the present invention provide a car cleaner with excellent cleaning power, antibacterial properties, uniform antifouling properties, and improved deodorizing ability. Furthermore, by using ethanol and a surfactant in combination, the present invention can efficiently remove accumulated contaminants by utilizing the foaming effect generated during spraying with a propellant.

[0057] The present invention will be described in more detail below through examples and experimental examples. However, the following examples and experimental examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0058] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0059] Example 1

[0060] Add 20 parts by weight of sodium metasilicate nonahydrate, 5 parts by weight of soda ash, and 1 part by weight of sodium pyrophosphate to 100 parts by weight of purified water, stir for 10 minutes, then add 0.5 parts by weight of sorbitan monooleate, stir for 10 minutes, then add 5 parts by weight of propylene glycol, stir for 10 minutes to generate the first mixture.

[0061] The bark of the heartwood of *Sappanwood* was removed, and the wood was pulverized into a powder of a certain size. Ten times the weight of the heartwood powder in 99% ethanol solvent was mixed with the powder, and the extraction was repeated twice every 24 hours at room temperature to obtain the extract. The extract was filtered using Whatman filter paper, and the filtrate was placed in a container and concentrated under reduced pressure using a rotary vacuum evaporator at 40°C. The concentrate was then freeze-dried to obtain a powdered sappanwood ethanol extract.

[0062] Add 5 parts by weight of sappanwood ethanol extract and 2 parts by weight of sodium hexametaphosphate to the first mixture above, stir for 10 minutes to generate the second mixture.

[0063] Add 5 parts by weight of ethanol, 0.5 parts by weight of lavender, and 5 parts by weight of sodium lauryl sulfate (anionic surfactant), stir for 10 minutes to generate a third mixture, then add the third mixture to the second mixture and stir for 10 minutes to prepare a cleaning agent.

[0064] Example 2

[0065] The procedure was carried out in the same manner as in Example 1, except that a sappanwood fermentation extract was used instead of a sappanwood ethanol extract. The preparation method of the sappanwood fermentation extract is as follows:

[0066] Sterilize MRS medium at 121°C for 20 minutes, then inoculate with Streptococcus thermophilus to achieve a concentration of 3 × 10⁻⁶. 6 CFU / ml was used to prepare seed culture by culturing at 37°C for 24 hours. One part by weight of *Streptococcus thermophilus* seed culture was added to 100 parts by weight of a mixture consisting of 40 parts by weight of freeze-dried sappanwood ethanol extract, 30 parts by weight of molasses, and 30 parts by weight of purified water. Fermentation was carried out at 37°C for 3 days. The fermented extract was filtered, and the filtrate was vacuum distilled and then freeze-dried to prepare the sappanwood fermentation extract.

[0067] [Comparative Example]

[0068] Comparative Example 1: The cleaning agent was prepared using the same method as in Example 2, except that a hot water extract of green tea was used instead of the fermented extract of sappanwood. Comparative Example 2: The cleaning agent was prepared using the same method as in Example 2, except that *Lactobacillus plantarum* was used instead of *Streptococcus thermophilus*. Comparative Example 3: The cleaning agent was prepared using the same method as in Example 2, except that *Aspergillus niger* was used instead of *Streptococcus thermophilus*.

[0069]

Cleaning and stain-resistant effect

[0070] 1 ml of the cleaning agent from the examples and comparative examples was sprayed onto a sponge (4cm × 4cm), and then the sponge was used to clean the surface of a car wheel (3cm × 3cm). The cleaning ability and the stain resistance at 2 and 4 weeks after cleaning were tested by visual inspection. The cleaning and stain resistance performance was evaluated using a 9-point scale. If the surface was as clean as before cleaning, the performance was excellent, with a score close to 9 points; if the surface was heavily soiled compared to before cleaning, the performance was poor, with a score close to 1 point (see Table 1).

[0071] the difference Cleaning performance Antifouling performance (after 2 weeks) Antifouling performance (after 4 weeks) Example 1 7 5 3 Example 2 8 9 8 Comparative Example 1 6 3 2 Comparative Example 2 7 4 3 Comparative Example 3 6 4 3

[0072] Table 1

[0073] As shown in Table 1, Examples 1 and 2 are not significantly different from Comparative Examples 1-3 in terms of cleaning ability, but Example 2 is significantly better than Example 1 and Comparative Examples 1-3 in terms of antifouling performance.

[0074] [Deodorizing effect]

[0075] The deodorization ability of the cleaning agents used in the examples and comparative examples was tested.

[0076] (1) Ammonia: Dissolve 0.1g of cleaning agent in 100ml of distilled water, put it into a 250ml container, add 0.1ml of ammonia solution with a concentration of 2800ppm, and shake to mix for 5 minutes. After a certain period of time, use a detection tube to extract 100ml of gas from the container and measure the detected gas concentration.

[0077] (2) Trimethylamine: Add 0.1g of cleaning agent to 100ml of distilled water, then place the solution in a 250ml container, add 0.1ml of a 1000ppm trimethylamine solution, and shake to mix for 5 minutes. After a certain period of time, use a detection tube to extract 100ml of gas from the container and measure the concentration of the detected gas.

[0078] Reduction rate (%) = 100 - (detected gas concentration / solution concentration in container) × 100

[0079]

[0080] Table 2

[0081] As shown in Table 2, the deodorizing ability of the cleaning agent in Example 2 was significantly improved compared with Example 1 and Comparative Examples 1 to 3.

[0082] On the other hand, the detailed description above should not be construed as limiting in any respect, but rather as exemplary. The scope of the invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention should be included within the scope of the invention.

Claims

1. A car cleaner, characterized in that, include: A first mixture containing sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate and propylene glycol; A second mixture containing hematoxylin and argyrophyllin extract and sodium hexametaphosphate ((NaPO3)6); and A third mixture containing ethanol, flavorings, and sodium lauryl sulfate.

2. The car cleaner according to claim 1, characterized in that, in, The first mixture comprises, relative to 100 parts by weight of purified water, 10 to 30 parts by weight of sodium metasilicate nonahydrate, 3 to 10 parts by weight of soda ash, 0.5 to 3 parts by weight of sodium pyrophosphate, 0.2 to 3 parts by weight of sorbitan monooleate, and 1 to 10 parts by weight of propylene glycol.

3. The car cleaner according to claim 1, characterized in that, in, The weight ratio of the sappanwood extract to sodium hexametaphosphate is 1:0.1 to 1.

4. The car cleaner according to claim 1, characterized in that, in, The sappanwood extract is a fermented sappanwood extract obtained by microbial fermentation of sappanwood.

5. The car cleaner according to claim 4, characterized in that, in, The sappanwood fermentation extract is obtained by adding Streptococcus thermophilus to a mixture of sappanwood ethanol extract, molasses and purified water for fermentation.

6. A method for preparing an automotive cleaner, characterized in that, Includes the following steps: S10: Add sodium metasilicate nonahydrate, soda ash, sodium pyrophosphate, sorbitan monooleate and propylene glycol to pure water and stir to generate the first mixture; S20: Extract sappanwood (Casesalpinia sappan) powder with solvent to obtain sappanwood extract; S30: Add sappanwood extract and sodium hexametaphosphate ((NaPO3)6) to the first mixture and stir to generate a second mixture; S40: Add ethanol, flavoring, and sodium lauryl sulfate and stir to produce a third mixture; S50: Add the third mixture to the second mixture and stir to prepare a cleaning agent.

7. The method for preparing the car cleaner according to claim 6, characterized in that, in, Step S20 for obtaining sappanwood extract includes: S22: Extract sappanwood powder with ethanol to obtain a sappanwood ethanol extract; and S24: Add Streptococcus thermophilus to the mixture of the sappanwood ethanol extract, molasses and purified water for fermentation to obtain sappanwood fermentation extract.

Images