Cleaner

Abstract

To provide a cleaner with high versatility mainly composed of plant-derived environment friendly components, having high cleaning effect, and being usable for wipe cleaning of floors and tiles and dish cleaning.SOLUTION: The cleaner includes: a purified water or an alkaline electrolyzed water as a solvent; and a vegetable surfactant, an essential oil, a re-adhesion inhibitor, and an antistatic agent that are included in the solvent. Therein: a proportion of the surfactant is 0.4-26 wt.%, preferably 11-22 wt.%; a proportion of the essential oil is 0.1-3 wt.%, preferably 0.5-1.5 wt.%; a proportion of the re-adhesion inhibitor is 0.1-1.5 wt.%, preferably 0.1-1 wt.%; and a proportion of antistatic agent is 0.1-1.5 wt.%, preferably 0.1-1 wt.%.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] To provide a cleaning agent which is mainly made of environmentally friendly plant-derived ingredients, has a high cleaning effect, and is highly versatile and can be used for wiping floors and tiles, washing dishes, and laundry, and is particularly suitable for home use. [Background technology]

[0002] Many of the existing products used for household wiping are made of plastic (Patent Document 1). They are convenient and disposable, so they are popular with many people. On the other hand, household cleaning agents are sold in categories such as for wiping, for washing dishes, for laundry, etc., so in reality, they are purchased according to the intended purpose. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-165344 Summary of the Invention [Problem to be solved by the invention]

[0004] The detergent-impregnated article introduced in Patent Document 1 is easy to use, and is often used by busy people such as housewives who have jobs. However, polyethylene and polypropylene are used as materials, and when used to clean floors by rubbing them against the floor to remove stuck-on dirt, small pieces of plastic peel off and flow into water, then through the sewer system and into the sea. These so-called microplastics are one of the causes of environmental pollution. Moreover, some plastic products contain chemicals to make them non-flammable, and these also have an adverse effect on fish and other creatures when they are washed into the sea. Since there are many users and they are mass-produced, the manufacturing costs may be going down, but we must consider the pros and cons of using such products on a daily basis.

[0005] On the other hand, it is common for households to purchase detergents for different purposes. You don't use dishwashing detergent to wash clothes, and laundry detergent to clean floors. However, if you think about it, this is wasteful. Whether you are cleaning floors, tiles, dishes, or clothes, surfactants are the main agents that remove dirt, and anti-redeposition agents are the main agents that prevent the transfer of dirt that has been wiped off. It is desirable to add fragrance to make housework more enjoyable, and this is mainly essential oils. In this way, the ingredients are the same regardless of the purpose. If that were the case, you could buy one type of detergent and use it for various purposes. You don't have to worry about the remaining amount for each purpose, and the containers don't take up extra space.

[0006] In view of these points, the present invention aims to provide a cleaning agent suitable for use with rags and mops in order to suppress the emission of microplastics. It is also an object of the present invention to provide a cleaning agent that can be used for a variety of household purposes. [Means for solving the problem]

[0007] In order to achieve the above object, the cleaning agent of the present invention comprises: Purified water is used as a solvent. The solvent contains a vegetable surfactant, an essential oil, an anti-redeposition agent, and an antistatic agent. Instead of purified water, alkaline electrolytic water may be used as the solvent.

[0008] Since the surfactants used are derived from plants rather than petroleum, they have less of a negative impact on the environment. Essential oils can reduce the size of oil particles, which are the main cause of dirt, and prevent the cleaning solution from becoming cloudy. The addition of essential oils increases the cleaning effect compared to when surfactants are used alone. The addition of an anti-redeposition agent prevents dirt from transferring to the surface. The addition of an anti-static agent prevents dirt from sticking due to static electricity.

[0009] In addition, the cleaning agent of the present invention The proportion of the surfactant is 0.4 to 26% by weight, preferably 11 to 22% by weight. The proportion of essential oil is 0.1 to 3% by weight, preferably 0.5 to 1.5% by weight. The proportion of the anti-redeposition agent is 0.1 to 1.5% by weight, preferably 0.1 to 1% by weight. The proportion of the antistatic agent is 0.1 to 1.5% by weight, preferably 0.1 to 1% by weight. It is characterized in that: By mixing in around 1% by weight of the anti-redeposition agent, which is higher than in regular cleaning agents, it is possible to prevent dirt from soaking into the rag or mop and causing it to turn black, thereby extending the number of times it can be used. There is no need to change the rinsing water as many times, which means there is no need to add more cleaning agent.

[0010] When used in domestic dishwashing applications, foaming agents may be included. Effect of the Invention

[0011] Essential oils, which have the effect of dissolving and micronizing dirt, have been added to the surfactant, resulting in a greater cleaning effect than when the surfactant is used alone. The residue of dirt that has been finely divided by essential oils can be further finely divided by the anti-redeposition agent contained in the product, which prevents dirt from being transferred to the surface. In addition, the product contains an antistatic agent, which prevents dust and debris from adhering to the surface. Instead of using petroleum-based surfactants, the system uses plant-based surfactants and is designed to be used with cotton rags and mops, reducing the burden on the environment. [Brief description of the drawings]

[0012] [Figure 1] This figure shows the results of a cleaning test using this alkaline cleaning agent (which uses alkaline electrolyzed water as a solvent). [Diagram 2] FIG. 1 shows the results of a cleaning test using the neutral cleaning agent (purified water is used as a solvent). [Diagram 3] FIG. 13 shows the results of a cleaning test using only well water. [Figure 4]FIG. 1 shows the results of a cleaning test using a commercially available product from another company. [Diagram 5] FIG. 13 is a diagram showing the results of a cleaning test using alkaline electrolyzed water. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] The cleaning agent according to one embodiment of the present invention (hereinafter, referred to as "the cleaning agent") will be described in detail.

[0014] [1. Ingredients of this cleaning agent] The ingredients and standard amounts of the neutral detergent are shown below. The neutral detergent is mainly used for home laundry and cleaning, but there are some changes depending on the application. For example, the detergent for laundry contains lavender oil as essential oil to improve the scent compared to the detergent for cleaning. The ingredients and amounts used when the cleaning agent is alkaline (using alkaline electrolyzed water as a solvent) will be explained later. <1> Purified water 78.60% by weight <2> Surfactants (a) Surfactant 1 Polyoxyethylene (2) coconut oil fatty acid monoethanolamide ·· 7.40% by weight (b) Surfactant 2 Polyalkylene glycol alkyl ether: 7.00% by weight (c) Surfactant 3 Polyoxyethylene lauryl ether: 1.00% by weight (d) Surfactant 4 Decyl glucoside: 2.00% by weight <3> Anti-reattachment agent Polyethylene glycol (molecular weight 20,000) 1.00% by weight <4> Antistatic agents Tetrasodium 3-hydroxy-2,2-iminodisuccinate 1.00% by weight 〈5〉Essential oil 1.00% by weight <6> Other Stabilized chlorine dioxide: 0.20% by weight Sodium hydroxide: 0.10% by weight Citric acid: 0.70% by weight Each of these components will be described below.

[0015] [1-1. Surfactants] The surfactant used in the present cleaning agent is preferably a non-ionic surfactant. This is because they do not ionize and therefore do not affect or are less likely to affect other substances. Therefore, they can be used in combination with other surfactants, and multiple nonionic surfactants are blended in this cleaning agent.

[0016] Surfactants are usually used in combination with other surfactants, but this cleaning agent uses a mixture of the following four types (a)-(d). (a) Polyoxyethylene (2) Coconut oil fatty acid monoethanolamide The amount of the additive varies slightly depending on the application, but the acceptable range is 0.1 to 10% by weight, with the recommended range being 5 to 8% by weight. This first surfactant can be replaced by coconut oil fatty acid diethanolamide, lauric acid diethanolamide, lauric myristic acid diethanolamide, stearic acid diethanolamide, oleic acid diethanolamide, stearic acid monoethanolamide, lauric acid monoisopropanolamide, polyoxyethylene lauric acid monoethanolamide, palm kernel oil fatty acid diethanolamide, coconut oil fatty acid N-methylethanolamide, etc. (b) Polyalkylene glycol alkyl ether The amount of the additive varies slightly depending on the application, but the acceptable range is 0.1 to 10% by weight, with the recommended range being 5 to 8% by weight. This second surfactant can be replaced by polyoxyethylene polyoxypropylene butyl ether, polyoxyethylene polyoxypropylene ethylene glycol ether, polyoxyethylene polyoxypropylene glyceryl ether, polyoxyethylene lauryl ether, polyoxyalkylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkyl ether, polyoxyethylene isostearyl ether, polyoxyethylene octyldodecyl ether, polyoxyethylene nonylphenol ether, etc. (c) Polyoxyethylene lauryl ether The amount of the additive varies slightly depending on the application, but the acceptable range is 0.1 to 3% by weight, and the recommended range is 0.5 to 2% by weight. This third surfactant can be replaced by polyoxyethylene polyoxypropylene butyl ether, polyoxyethylene polyoxypropylene ethylene glycol ether, polyoxyethylene polyoxypropylene glyceryl ether, polyoxyethylene lauryl ether, polyoxyalkylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkyl ether, polyoxyethylene isostearyl ether, polyoxyethylene octyldodecyl ether, polyoxyethylene nonylphenol ether, etc. (d) Decyl glucoside The amount of the additive varies slightly depending on the application, but the acceptable range is 0.1 to 3% by weight, and the recommended range is 0.5 to 2% by weight. This fourth surfactant can be replaced by lauryl glucoside, alkyl maltoside, sucrose fatty acid ester, glucoside fatty acid ester, etc.

[0017] If the amount of any of the above surfactants is less than the lower limit of the allowable range, the cleaning power is insufficient, and if the amount is more than the upper limit, the biodegradability is poor. Therefore, it is desirable to set the amount of surfactant taking into consideration both cleaning power and biodegradability. The applicant has already filed a patent application for a cleaning agent for industrial use (Patent Application No. 2022-178222). This cleaning agent contained a total of about 10% surfactant. However, this cleaning agent was increased by several weight percent. This resulted in a detergency that was definitely improved. Because of its high detergency, even dirt that is stuck to hard surfaces such as floors and tiles can be lifted and removed without applying much force, improving work efficiency. In addition, there is no need to scratch stubborn dirt to remove it, so the surface of the floor and other surfaces will not be scratched.

[0018] By the way, when choosing a cleaning agent that does not put a strain on the environment, there are two important points to consider: the type of surfactant and biodegradability. In terms of "type of surfactant," this cleaning agent uses only plant-derived surfactants. "Biodegradability" refers to how long it takes for the waste liquid after cleaning (including cleaning agent components and dirt residues) to decompose in nature. If it biodegrades quickly, there is almost no burden on the environment. In this respect, the higher alcohol-based (non-ionic) and coconut oil fatty acid monoethanolamide used in this cleaning agent are highly biodegradable surfactants. In addition, in the fall of 2022, we requested the Japan Food Research Laboratories, Inc. to conduct a biodegradation test using the DOC method on this cleaning agent as a sample. The test showed that the biodegradation rate of the sample was 87%.

[0019] [1-2. Essential oils] Essential oils are volatile, fragrant oils obtained from the flowers, leaves, and fruits of plants. This cleaning agent uses bergamot oil, but limonene, lime, linalyl acetate, etc. may be substituted. Some types have a superior fragrance or antibacterial properties, so an appropriate oil can be selected depending on the application. The cleaning effect is enhanced when used in combination with a surfactant, but in terms of cleaning effect, there are essential oils (e.g., 1,4-p-menthadiene) that are more suitable than bergamot oil (e.g., 1,4-p-menthadiene). However, since this cleaning agent is mainly used for household purposes, the fragrance is important. The amount of essential oil in this cleaning agent varies slightly depending on the application, but the acceptable range is 0.1-3% by weight, and the recommended range is 0.5-1.5% by weight. If it is less than the lower limit of the acceptable range of 0.1% by weight, the cleaning effect will be weakened, and if it exceeds the upper limit of 3% by weight, it will not dissolve in the purified water (solvent) and will become cloudy.

[0020] Essential oils are characterized by their fine oil particles. These fine particles penetrate into the gaps between oil and dirt, dissolving the oily dirt. By mixing this essential oil with a surfactant, this cleaning agent breaks down the dirt into fine particles, allowing it to penetrate the dirt and exert a peeling power, resulting in a powerful cleaning effect.

[0021] [1-3. Anti-reattachment agent] A porous structure material with many fine pores is used as the redeposition inhibitor. The porous structure material stores dirt residues inside the many pores and adsorbs the residues on the surface of the pores. In this cleaning agent, polyethylene glycol (molecular weight 20,000) is used as the porous structure material. The blending ratio varies slightly depending on the application of the cleaning agent, but the allowable range is 0.1-1.5% by weight, and the recommended range is 0.1-1% by weight. If it is less than the lower limit of the allowable range of 0.1% by weight, the anti-redeposition effect cannot be achieved, and if it exceeds the upper limit of 1.5% by weight, the effect remains unchanged and the price will simply increase. The industrial cleaning agent disclosed in the applicant's patent application 2022-178222 contains 0.1% of anti-redeposition agent. However, the optimal amount of the anti-redeposition agent in this cleaning agent is 1%. This reliably prevents dirt transfer and makes the agent more resistant to muddy stains. As I will explain later, the biggest feature of this cleaning agent is that the rags do not turn black like conventional ones, even if you rinse the rags with water repeatedly until they turn black without changing the water. This is due to the high ratio of anti-redeposition agent.

[0022] [1-4. Antistatic agents] Tetrasodium 3-hydroxy-2,2-iminodisuccinate is used as an antistatic agent. The blending ratio varies slightly depending on the application of the cleaning agent, but the acceptable range is 0.1 to 1.5% by weight, and the recommended range is 0.1 to 1% by weight. The addition of an antistatic agent prevents static electricity from being generated, which, combined with the anti-reattachment agent, makes it difficult for dirt to reattach. In addition, dust and rag fibers do not adhere to the items being washed.

[0023] [1-5. Other ingredients] This neutral cleaning agent, which uses purified water as a solvent, also contains stabilized chlorine dioxide, sodium hydroxide, and citric acid, which improves pH stability and disinfecting performance, and prevents mold growth when the cleaning agent is stored for a long time. Stabilized chlorine dioxide is added as an antibacterial agent and preservative to prevent the growth of mold and other microorganisms. Sodium hydroxide is added as a pH adjuster. Citric acid is a carbon-containing organic acid that is added for pH stability and also acts as a sequestering agent (chelating agent). Purified water, from which all impurities have been thoroughly removed, is used as the solvent in order to stabilize the mixture of each component and bring out the cleaning agent's capabilities. However, as described below, it is also possible to use alkaline electrolyzed water as the solvent instead of purified water.

[0024] For household purposes such as floor cleaning, laundry, and dishwashing, this cleaning agent can be a neutral one that uses purified water as the solvent. However, even for household use, in places with a lot of oil stains such as around the kitchen range, this cleaning agent that uses alkaline electrolyzed water as the solvent (alkaline cleaning agent) is more suitable. When using this detergent for washing, use a neutral detergent to prevent rough hands, but you can also use an alkaline detergent only on areas that are prone to sebum stains, such as the collar.

[0025] [1-6. Solvent is alkaline electrolyzed water] Next, the ingredients and standard amounts of each ingredient when this detergent is alkaline are shown below. This alkaline detergent is mainly used for commercial purposes, but the amounts of each ingredient may vary slightly depending on the application. <1> Alkaline electrolyzed water: 79.10% by weight <2> Surfactants (a) Surfactant 1 Polyoxyethylene (2) coconut oil fatty acid monoethanolamide ·· 7.40% by weight (b) Surfactant 2 Polyalkylene glycol alkyl ether: 7.00% by weight (c) Surfactant 3 Polyoxyethylene lauryl ether: 1.00% by weight (d) Surfactant 4 Decyl glucoside: 2.00% by weight <3> Anti-reattachment agent Polyethylene glycol (molecular weight 20,000) 1.00% by weight <4> Antistatic agents Tetrasodium 3-hydroxy-2,2-iminodisuccinate 1.00% by weight 〈5〉Essential oil 1.50% by weight This neutral cleaning agent, which uses purified water as a solvent, also contains stabilized chlorine dioxide, sodium hydroxide, and citric acid. However, if the solvent of this cleaning agent is alkaline, these are not included because the solvent itself has antibacterial properties.

[0026] 2. Use of this cleaning agent [2-1. Used for wiping floors, etc.] Put this cleaning agent into a bucket or basin filled with water (leftover bath water is fine) and dilute it about 1000 times. Mix the cleaning agent thoroughly with the water, soak a rag in the liquid and rub it in thoroughly, squeeze out the water, and wipe off the dirt from the floor, tiles, or other items to be cleaned. It is preferable that this rag is made of natural fibers such as cotton or linen. If it is made of synthetic fibers, it may be abraded when wiping off stubborn dirt with strong force, which may result in tiny plastic particles being released.

[0027] This cleaning agent contains more surfactants than regular detergents, and also contains essential oils, so it has a high cleaning power. Therefore, unless the dirt is very stubborn, it can be wiped off in one wipe. Depending on the surface area of ​​the object to be cleaned, the rag will be dipped into the liquid containing detergent in the bucket several times to rinse. Normally, when a dirty rag is rinsed, not only does the liquid containing detergent turn black and murky, but the rag also absorbs the dirt and turns black. This means that the rinsing water must be changed several times. However, this detergent contains a high proportion of anti-redeposition agent and an antistatic agent, so even if the rag is dipped into the blackened rinsing water several times, the dirt hardly transfers to it. Even if the water in the bucket containing the detergent turns pitch black, it can be reused without replacing the water, which eliminates the need for additional detergent, making it economical. In this way, when using this cleaning agent, wiping twice is almost unnecessary due to its high cleaning power, improving work efficiency. In addition, since the rags remain almost white, they can be reused by simply drying them without bleaching.

[0028] Also, after wiping with this cleaner, it is a good idea to wipe it dry. Normally, when you wipe it dry, static electricity can cause the item to become dirty with dust and dirt. However, this cleaner contains an antistatic agent, which creates a coating layer on the item, giving it a glossy, beautiful appearance.

[0029] Since it is assumed that natural fiber rags and mops will be used, there is no problem with microplastics, as occurs with plastic cleaning sheets soaked in detergent. Moreover, because the surfactant used is derived from plants, the risk of environmental pollution is extremely low. Furthermore, this cleaning agent is diluted approximately 1000 times before use. In other words, only 3mL is needed for 3L of water. For commercial use, it is recommended to dilute it 10 to 100 times, since the degree of dirt varies. However, depending on the degree of dirt, it may be used as is, or it may be diluted more.

[0030] [2-2. Use as a kitchen detergent] The detergent is mostly made of plant-derived ingredients, so it is safe to use for washing dishes. The detergent can be diluted about 1000 times when used, but the diluted detergent can also be packed in a container and sold commercially. When wiping floors and tiles, it is desirable to have less foaming, but when dishwashing detergent foams well, it feels like it removes dirt well. Therefore, the surfactant may be mixed in a higher proportion than for wiping, to increase foaming. Alternatively, instead of adding more surfactant, a foaming agent may be included. Laborgum (registered trademark) or xanthan gum is used as the foaming agent, and 0.1 to 0.3 g is added per 1000 ml of the detergent.

[0031] Plastic sponges are often used to wash dishes, which raises concerns about the release of microplastics. However, the most common type of dirt on dishes is oil, and this detergent contains a high proportion of surfactants, so dirt can be removed easily without exerting much force. Therefore, there is little risk of microplastics being released by abrading the sponge. This cleaning agent also contains an anti-redeposition agent and an anti-static agent, so dirt from dishes does not adhere to the sponge, and it can be kept in like-new condition for a long time even after repeated use.

[0032] [2-3. Use as laundry detergent] This detergent can also be used for washing clothes. It is recommended to dilute it about 6000 times. In addition, this cleaning agent, which contains anti-redeposition and anti-static agents, makes clothes look as clean as new after washing, eliminating the need to use bleach.

[0033] [2-4. Other Uses] This cleaning agent can be used for various household purposes, and is suitable for general residential cleaning, washing cars and motorcycles, etc. However, it can also be used for industrial purposes, such as cleaning the surfaces of solar panels and washing window panes of buildings. Other industrial uses include cleaning medical equipment, and cleaning office equipment and electronic devices for reuse. It is also suitable for use in cleaning floors in factories and offices. Floors are usually cleaned using cleaning machines, but this detergent has the advantage that it is not necessary to change the rinsing water as frequently, and it is less likely to stain mops and polishers, resulting in less uneven wiping.

[0034] 3. Manufacturing of the cleaning agent The present cleaning agent is produced by adding the above-mentioned components to a solvent and dissolving them with stirring. The produced detergent is filled into containers or bags with caps or lids and then sold commercially. This commercially available cleaning agent is used at different dilution rates depending on the application. However, when used for washing dishes or clothes, foaming agents may be added to improve foaming. Therefore, products for washing dishes and laundry and those for wiping, where foaming is not an issue, may be sold separately. This cleaning agent has general-purpose uses and many of the ingredients are common, so a large part of the manufacturing process can be common.

[0035] 4. Cleaning test A cleaning test was conducted to compare the results when this cleaning agent was used and when other cleaning agents were used. 4-1. Test method The rag is soaked in the test liquid for five minutes, and the action of wiping the floor to remove dirt from both sides and rinsing is repeated ten times. 4-2. Test results This alkaline cleaning agent was diluted 100 times and used. After rinsing the cloth 10 times, the condition of the cloth was as shown in Figure 1. The neutral cleaning agent was diluted 100 times and used, and the condition of the rag after rinsing 10 times is as shown in Figure 2. No detergent was used and only well water (tap water would also work), and the condition of the rag after rinsing it 10 times is as shown in Figure 3. A household detergent sold by a major manufacturer was used, and the condition of the rag after rinsing it 10 times is as shown in Figure 4. The condition of the cloth after rinsing 10 times using alkaline electrolyzed water is as shown in Figure 5.

[0036] Comparing Figures 1 to 5, the order of least dirt on the rags is as follows: Alkaline detergent ---> Neutral detergent ---> Well water ---> Commercial detergent ---> Alkaline electrolyzed water From the photographs of the above results, it appears that the alkaline electrolyzed water is the dirtiest (Figure 5), but this is thought to be due to the peeling effect of the alkaline electrolyzed water, which effectively removes dirt from the object being cleaned. Commercially available detergents are also weakly alkaline, so the dirt itself is almost completely removed (Figure 4). However, since neither the alkaline electrolyzed water nor the diluted commercial detergent contains any anti-redeposition agents, dirt remains on the rag. In contrast, when wiping with well water without using detergent, the dirt itself is not completely removed from the object being cleaned (Figure 3). Therefore, the amount of dirt that adheres to the rag is relatively small compared to when using alkaline electrolyzed water or commercial detergent. On the other hand, this alkaline cleaning agent has a cleaning power comparable to that of alkaline electrolyzed water, but the anti-redeposition agent is highly effective, resulting in the least amount of dirt on the rag (Figure 1). Although the neutral detergent is slightly inferior in cleaning power and the whiteness of the rag after use compared to the alkaline detergent, the anti-redeposition agent is effective (Figure 2). [Industrial Applicability]

[0037] This cleaning agent is highly effective and safe, making it suitable for a wide range of uses, from home use to industrial use. In particular, when used with cleaning tools made from natural fibers (e.g., rags and mops), its effectiveness is clearly superior to that of conventional cleaning agents, and it is expected to help prevent the outflow of microplastics, which cause environmental pollution.

Claims

1. Purified water is used as a solvent. The cleaning agent comprises a vegetable surfactant, an essential oil, a redeposition inhibitor, and an antistatic agent in the solvent.

2. Alkaline electrolyzed water is used as a solvent. The cleaning agent comprises a vegetable surfactant, an essential oil, a redeposition inhibitor, and an antistatic agent in the solvent.

3. The proportion of surfactant is 0.4 to 26% by weight, preferably 11 to 22% by weight, The proportion of essential oil is 0.1-3% by weight, preferably 0.5-1.5% by weight, The proportion of the anti-redeposition agent is 0.1 to 1.5% by weight, preferably 0.1 to 1% by weight. The proportion of the antistatic agent is 0.1 to 1.5% by weight, preferably 0.1 to 1% by weight.

3. The cleaning agent according to claim 1 or 2,

4. The cleaning agent according to claim 3, characterized in that a foaming agent is added when the cleaning agent is used for washing dishes or clothes at home.

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