Cleaning agent composition for washbasin overflow channels

A solid detergent composition using bicarbonate, acid, and surfactant generates foam that backfills the overflow channel, efficiently cleaning and disinfecting the overflow channel, addressing inefficiencies and mold removal, and the foam generated by the reaction of the solid detergent composition, the technical solution, and the foam generated by the reaction of the solid detergent composition, effectively cleaning and disinfecting the overflow channel.

JP7870152B2Active Publication Date: 2026-06-04KOBAYASHI PHARMA CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KOBAYASHI PHARMA CO LTD
Filing Date
2021-08-30
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing cleaning agents for washbasin overflow channels are inefficient, difficult to use, and lack effective mold removal capabilities, particularly due to their aerosol form and high cost.

Method used

A solid detergent composition comprising bicarbonate, acid, and surfactant, which generates foam that flows back into the overflow channel upon blocking the drain, enhancing cleaning and mold removal with optional bleaching agents.

Benefits of technology

The composition effectively cleans and disinfects the overflow channel by filling it with foam generated by the reaction of the solid detergent composition, the effectiveness of the technical solution, and the foam generated by the reaction of the solid detergent composition, effectively cleaning and disinfecting the overflow channel.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a detergent composition that can easily clean an overflow channel of a washbasin.SOLUTION: A solid detergent composition containing carbonate, acid, and surfactant is put into a drain channel through a drain outlet of a washbasin to seal the drain outlet, causing a backflow of bubbles formed by the foaming of the solid detergent, the backflow to fill the overflow channel. Thus, the overflow channel can be cleaned.SELECTED DRAWING: None
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Description

Technical Field

[0001] The present invention relates to a cleaning composition capable of easily cleaning an overflow channel of a washbasin.

Background Art

[0002] Generally, an overflow channel is provided in a washbasin. The overflow channel is connected to a drainage channel from an overflow hole provided in the upper part of the side surface of the bowl part of the washbasin, and plays a role of draining water so that the water in the washbasin does not overflow, or discharging the air in the drain pipe when flowing water.

[0003] On the other hand, soap scum, toothpaste, dust, hair, dirt, etc. are likely to adhere to the overflow channel of the washbasin, and furthermore, because the environment has high humidity, slime and mold may occur and emit a bad smell. In order to maintain the overflow channel of the washbasin in a hygienic state, cleaning with a cleaning agent is required. However, since the overflow hole is on the side surface of the bowl part and is small, it has been difficult to easily and efficiently clean the overflow channel with a general cleaning agent for drainage pipes.

[0004] Conventionally, as a cleaning agent for the overflow channel of a washbasin, an aerosol product in which bubbles containing a cleaning agent are formed by spraying, with an injection rate of 1 mL / second or more, a 50% liquefaction time of the bubbles of 20 seconds or more, and a bubble specific gravity of 0.3 g / mL or less has been proposed (Patent Document 1). However, in the technology of Patent Document 1, since it is an aerosol product, it has a drawback that a bleaching agent cannot be blended and the action of removing blackening due to mold is weak. Furthermore, aerosol products have a drawback that the price per single use amount is high, it is necessary to secure a storage place that does not get hot even with a large capacity, and furthermore, it takes time to dispose of the aerosol container.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] The object of the present invention is to provide a cleaning agent composition that can easily clean the overflow channel of a washbasin. [Means for solving the problem]

[0007] The inventors of the present invention conducted diligent research to solve the aforementioned problems and discovered that by pouring a solid detergent composition containing a carbonate, an acid, and a surfactant into the drain channel of a washbasin and blocking the drain, the foam generated by the foaming of the solid detergent flows back and fills the overflow channel, thereby cleaning the overflow channel. The present invention was completed by further research based on this finding.

[0008] In other words, the present invention provides inventions in the following embodiments. Item 1. A cleaning agent composition for washbasin overflow channels, comprising a bicarbonate and / or carbonate, an acid, and a surfactant, and being in solid form. Item 2. The cleaning composition according to Item 1, further comprising a bleaching agent. Item 3. The detergent composition according to item 1 or 2, wherein the acid is citric acid. Item 4. The detergent composition according to any one of items 1 to 3, wherein the surfactant is an anionic surfactant. Item 5. The detergent composition according to Item 4, wherein the anionic surfactant is α-olefin sulfonic acid and / or a salt thereof. Item 6. A cleaning agent composition according to any one of items 1 to 5, which is used by pouring it into the drainpipe through the drain of a washbasin and then sealing the drain. Item 7. A method for cleaning the overflow channel of a washbasin, comprising pouring a cleaning agent composition described in any of Items 1 to 6 into the drainpipe from the washbasin drain and blocking the drain. Item 8. The cleaning method according to Item 7, wherein the cleaning agent composition is poured into the drainpipe from the drain of the washbasin, and then water is poured into the drainpipe from the drain to seal the drain. [Effects of the Invention]

[0009] When the cleaning agent composition of the present invention is poured into the drain channel of a washbasin through the drain opening, the carbonate and acid react upon contact with the water seal in the drain channel, initiating foaming. The foam generated in the drain channel is easily maintained by the action of the surfactant contained in the cleaning agent composition of the present invention. Furthermore, since the drain opening is blocked after the cleaning agent composition of the present invention is poured into the drain channel, the foam generated in the drain channel flows back up to the overflow channel, fills the overflow channel, and thereby cleans the overflow channel. Thus, with the cleaning agent composition of the present invention, the overflow channel of a washbasin can be cleaned by a simple method of pouring it into the drain channel through the drain opening and blocking the drain opening.

[0010] Furthermore, the cleaning agent composition of the present invention may also contain a bleaching agent, thereby enhancing the antibacterial effect against mold adhering to the overflow channel. [Brief explanation of the drawing]

[0011] [Figure 1] This is a schematic diagram of a washbasin with an overflow. [Figure 2] This is a schematic diagram of the test piping used in Test Examples 1 and 2. [Figure 3] In Test Example 3, the cleaning agent composition of Example 1 was poured into the drainpipe of a washbasin, and the condition of the washbasin was observed. A is a photograph with the drain cover on, and B is a photograph without the cover. [Modes for carrying out the invention]

[0012] 1. Detergent composition The detergent composition of the present invention is a solid detergent composition used for cleaning the overflow channel of a washbasin, and is characterized by containing a hydrogen carbonate and / or a carbonate, an acid, and a surfactant. Hereinafter, the detergent composition of the present invention will be described in detail.

[0013] [Hydrogen carbonate and / or carbonate] The detergent composition of the present invention contains a hydrogen carbonate and / or a carbonate as a foaming component.

[0014] The type of the hydrogen carbonate is not particularly limited as long as it can react with an acid to generate foam. For example, alkali metal salts of hydrogen carbonate such as sodium hydrogen carbonate and potassium hydrogen carbonate can be mentioned. Also, the type of the carbonate is not particularly limited as long as it can react with an acid to generate foam. For example, alkali metal salts of carbonate such as sodium carbonate and potassium carbonate can be mentioned.

[0015] In the detergent composition of the present invention, one compound can be selected from the hydrogen carbonate and the carbonate and used alone, or two or more compounds can be combined and used.

[0016] Also, when the hydrogen carbonate and the carbonate are used in combination, a double salt of the carbonate and the hydrogen carbonate may be used. Examples of the double salt of the carbonate and the hydrogen carbonate include sodium sesquicarbonate.

[0017] In the detergent composition of the present invention, from the viewpoint of enhancing the foaming property and more efficiently cleaning the overflow channel, it is preferable to use the hydrogen carbonate and the carbonate in combination. When the hydrogen carbonate and the carbonate are used in combination, the ratio thereof is not particularly limited. For example, per 100 parts by weight of the hydrogen carbonate, the carbonate is 1 to 1000 parts by weight, preferably 10 to 250 parts by weight, more preferably 25 to 75 parts by weight.

[0018] As the content of the hydrogen carbonate and / or carbonate in the cleaning composition of the present invention, for example, the total amount of the hydrogen carbonate and / or carbonate is 20 to 80% by weight, preferably 30 to 70% by weight, more preferably 40 to 60% by weight. By containing the hydrogen carbonate and / or carbonate in such a content, excellent foaming properties can be imparted, and it becomes easy to have the property of causing the foam generated in the drainage channel to flow back to the overflow channel until it is filled.

[0019] [Acid] The cleaning composition of the present invention contains a hydrogen carbonate and / or carbonate as a foaming component. In the cleaning composition of the present invention, by containing an acid together with the carbonate, foaming by carbon dioxide gas becomes possible when it is introduced into the drainage channel from the drain outlet of the washbasin and comes into contact with water.

[0020] The acid may be in either solid or liquid form, but preferably solid form. Also, the acid may be either an organic acid or an inorganic acid, but preferably an organic acid.

[0021] Specific examples of the acid include organic acids such as citric acid, tartaric acid, fumaric acid, malic acid, maleic acid, gluconic acid, succinic acid, salicylic acid; and inorganic acids such as phosphoric acid, sulfamic acid, sulfuric acid, nitric acid, hydrochloric acid. These acids may be used alone or in combination of two or more.

[0022] Among these acids, preferably a solid organic acid, more preferably citric acid.

[0023] The content of the acid in the cleaning composition of the present invention may be appropriately set according to the content of the hydrogen carbonate and / or carbonate, etc. For example, 5 to 70% by weight, preferably 15 to 60% by weight, more preferably 30 to 50% by weight. By containing the acid in such a content, excellent foaming properties can be imparted, and it becomes easy to have the property of causing the foam generated in the drainage channel to flow back to the overflow channel until it is filled.

[0024] In the detergent composition of the present invention, the ratio of bicarbonate and / or carbonate to acid may be within the range corresponding to the respective content, but for example, per 100 parts by weight of bicarbonate and / or carbonate, the total amount of acid may be 1 to 1000 parts by weight, preferably 20 to 200 parts by weight, and more preferably 50 to 120 parts by weight.

[0025] [Surfactants] The cleaning agent composition of the present invention contains a surfactant. The surfactant exhibits the effect of retaining foam produced by the reaction of bicarbonate and / or carbonate with an acid, and also acts as a cleaning component to remove dirt adhering to the overflow channel.

[0026] The type of surfactant is not particularly limited, as long as it can be used as a component of a detergent, and may be any of anionic surfactants, nonionic surfactants, cationic surfactants, or amphoteric surfactants. In the detergent composition of the present invention, one type of surfactant may be used alone, or two or more types may be used in combination.

[0027] Among these surfactants, anionic surfactants are preferred from the viewpoint of stably maintaining the foamed bubbles and further improving the cleaning effect of the overflow channel.

[0028] Examples of anionic surfactants include α-olefin sulfonic acid and its salts; alkyl sulfate esters and their salts such as lauryl sulfate, laureth sulfate, myristyl sulfate, cetyl sulfate, and oleyl sulfate; N-acyl amino acids and their salts such as N-myristoyl glutamic acid, cocoyl glutamic acid, N-lauroyl glutamic acid, N-stearoyl glutamic acid, and cocoyl glycine; alkylbenzene sulfonic acids and their salts such as dodecylbenzenesulfonic acid; polyoxyethylene alkyl ether sulfates and their salts such as polyoxyethylene lauryl ether sulfate; N-acyl sarcosinic acids and their salts such as lauroyl sarcosine; and higher fatty acid amide sulfonic acids such as myristoyl methyl taurine, coconut oil fatty acid methyl taurine, and lauryl methyl taurine. In these anionic surfactants, the average number of carbon atoms in the alkyl group, acyl group, or alkenyl group is, for example, 8 to 20. Examples of salt forms of these anionic surfactants include alkali metal salts such as sodium salts and potassium salts. Among these anionic surfactants, α-olefin sulfonate and its salts are preferred from the viewpoint of stably maintaining the foamed bubbles and further enhancing the cleaning effect of the overflow channel.

[0029] The surfactant content in the detergent composition of the present invention can be appropriately set depending on the type of surfactant, but for example, 0.05 to 20% by weight, preferably 0.1 to 10% by weight, and more preferably 1 to 5% by weight is used. By including the surfactant in such a content, the foam-retaining effect and the cleaning effect on the overflow channel can be effectively achieved.

[0030] In the detergent composition of the present invention, the ratio of bicarbonate and / or carbonate to surfactant may be within the range corresponding to the respective contents, but for example, per 100 parts by weight of bicarbonate and / or carbonate, the total amount of surfactant may be 0.01 to 100 parts by weight, preferably 0.1 to 50 parts by weight, and more preferably 1 to 10 parts by weight.

[0031] [Bleach] The cleaning agent composition of the present invention may also contain a bleaching agent in addition to the above-mentioned components. When a bleaching agent is included, it becomes possible to improve the antibacterial effect on mold adhering to the overflow channel, and further improve the cleaning effect of the overflow channel.

[0032] There are no particular restrictions on the type of bleaching agent, but examples include chlorine-based bleaching agents, oxygen-based bleaching agents, and reducing bleaching agents. In the cleaning agent composition of the present invention, one type of bleaching agent may be used alone, or two or more types may be used in combination.

[0033] Among these bleaches, chlorine-based bleaches are preferred.

[0034] Examples of chlorine-based bleaches include dichloroisocyanurates and hypochlorites. Specifically, dichloroisocyanurates include alkali metal salts such as sodium salts and potassium salts. Specifically, hypochlorites include alkali metal salts such as sodium salts and potassium salts. Among these chlorine-based bleaches, dichloroisocyanurates are preferred.

[0035] When a bleaching agent is included in the detergent composition of the present invention, the amount can be appropriately set depending on the type of bleaching agent, etc., but for example, 0.1 to 30% by weight, preferably 1 to 20% by weight, and more preferably 5 to 15% by weight are given.

[0036] When the detergent composition of the present invention contains a bleaching agent, the ratio of bicarbonate and / or carbonate to the bleaching agent may be within the range corresponding to the respective amounts, but for example, the total amount of bleaching agent may be 0.1 to 100 parts by weight, preferably 1 to 50 parts by weight, and more preferably 5 to 25 parts by weight, per 100 parts by weight of the total amount of bicarbonate and / or carbonate.

[0037] [Other ingredients] In addition to the above components, the cleaning composition of the present invention may optionally contain other additives. Examples of such additives include chelating agents, pH adjusters, enzymes, coloring agents, fragrances, deodorants, thickeners, preservatives, disinfectants, antibacterial and bactericidal agents, antiseptics, rust preventives, extenders, etc.

[0038] The shape of the cleaning composition of the present invention is not particularly limited as long as it is in a solid form, and it may be in any form such as powder, granule, tablet, etc., but a powder form is preferred.

[0039] [Usage Method] As shown in FIG. 1, a washbasin with an overflow has a drain outlet 2 at the bottom of the bowl portion 1 and an overflow hole 3 at the upper part of the side surface of the bowl portion 1. The drain outlet 2 is connected to a drain channel (main drain channel) 4, and the overflow channel 5 is connected from the overflow hole 3 to the drain channel 4.

[0040] The cleaning composition of the present invention is used to clean the overflow channel connecting the overflow hole and the drain channel.

[0041] To clean the overflow channel of the washbasin using the cleaning composition of the present invention, the cleaning composition of the present invention is poured into the drain pipe from the drain outlet of the washbasin, and the drain outlet can be blocked. As shown in FIG. 1, the drain channel 4 of the washbasin has a U-shaped portion 41 so that water can be stored as a water seal at a predetermined water level. The cleaning composition of the present invention poured into the drain pipe from the drain outlet of the washbasin stays in the water seal of the U-shaped portion of the drain pipe and starts to foam. The foam generated in the drain pipe will not overflow from the drain outlet if the drain outlet is blocked, and will flow into the overflow channel to fill the overflow channel, thereby cleaning the overflow channel.

[0042] The amount of the cleaning agent composition of the present invention to be introduced into the drainpipe can be appropriately set according to the composition of the cleaning agent composition, the size of the washbasin, the diameter and length of the overflow channel, etc., but usually, about 10 to 30 g of the cleaning agent composition of the present invention per wash is sufficient, preferably about 10 to 22 g, and more preferably about 16 to 22 g.

[0043] Furthermore, it is preferable that the cleaning agent composition of the present invention has foaming properties so that the foam generated after being introduced into the drainpipe overflows from the overflow hole. In this way, the foam generated by the cleaning agent composition of the present invention introduced into the drainpipe overflows from the overflow hole, thereby enhancing the cleaning effect of the overflow channel.

[0044] Furthermore, when cleaning an overflow channel using the cleaning agent composition of the present invention, it is preferable to further enhance the foaming and cleaning effect of the overflow channel by adding water to the drainpipe after adding the cleaning agent composition of the present invention to seal the drain outlet. When adding water after adding the cleaning agent composition of the present invention, the amount of water to be added can be appropriately set according to the size of the washbasin, the amount of water that can be stored in the U-shaped part of the drainpipe, etc., but is usually about 15 to 100 ml, preferably about 40 to 85 ml, and more preferably about 45 to 60 ml. The temperature of the water to be added is not particularly limited and may be room temperature water or cold water, but to further enhance the foaming and cleaning effect of the overflow channel, warm water is recommended, preferably about 4 to 50°C, preferably about 20 to 50°C, and more preferably about 38 to 40°C.

[0045] After the cleaning agent composition of the present invention is poured into the drainpipe and about 10 minutes, preferably about 20 minutes, and more preferably about 30 minutes have elapsed, the overflow channel will be sufficiently cleaned by the foam that has filled the overflow channel. Thereafter, an appropriate amount of water can be poured into the overflow hole to wash away the foam in the overflow channel.

[0046] To seal the drain after pouring the cleaning agent composition of the present invention into the drainpipe, it is convenient and preferable to use the drain stopper attached to the washbasin, but the drain may also be sealed using a wet cloth (such as a rag or towel).

[0047] Furthermore, when the cleaning agent composition of the present invention is poured into the drainpipe of a washbasin and the drain outlet is blocked, not only the overflow channel but also the inside of the drainpipe from the top surface of the water seal stored in the U-shaped section of the drainpipe to the drain outlet is filled with foam, so the drainpipe can be cleaned at the same time.

[0048] 2. Cleaning method The present invention relates to a cleaning method for cleaning the overflow channel of a washbasin, characterized by pouring the cleaning agent composition into the drainpipe from the washbasin drain and then blocking the drain. The composition of the cleaning agent composition used in this cleaning method, the specific cleaning method, etc. are as described in the "1. Cleaning Agent Composition" section above. [Examples]

[0049] The present invention will be described in detail below based on examples, but the present invention is not limited thereto.

[0050] Test Example 1 1. Test Method A test pipe was prepared as shown in Figure 2. The test pipe 6 shown in Figure 2 simulates the piping of a washbasin, with area a simulating the drainage channel and areas b and c simulating the overflow channel. The test pipe is provided with a hole A simulating a drain, and in the test pipe shown in Figure 2, hole A is covered with a stopper 7. The bottom of area a of the test pipe is sealed, allowing water 8 to be stored. In the test pipe, area a is 292 mm, area b is 129 mm, area c is 507 mm, and the inner diameter of the pipe is 32 mm. The test pipe is made of transparent plastic, allowing the inside of the test pipe to be seen from the outside.

[0051] Powdered cleaning agent compositions with the compositions shown in Table 1 were prepared, and the foaming properties of the cleaning agent compositions in the test piping were evaluated under the following test conditions 1 and 2 using the test piping.

[0052] [Table 1]

[0053] <Test Condition 1> 400 ml of 38°C water was poured into hole A of the test piping and stored at the bottom of area a, which simulated a drainpipe. Next, 10 g, 20 g, 30 g, or 40 g of the cleaning agent composition was poured into hole A of the test piping and immersed in the water inside the test piping. Hole A was plugged immediately after pouring in the cleaning agent composition, and the amount of foam (volume of foam formed) was determined 5 minutes after pouring in the cleaning agent composition.

[0054] <Test Conditions 2> 400 ml of 4°C water was poured into hole A of the test piping and stored in area a, which simulated a drainpipe. Next, 10 g, 20 g, 30 g, or 40 g of the cleaning agent composition was poured into hole A of the test piping, and then 15 ml, 45 ml, 60 ml, or 75 ml of 40°C water were added to hole A of the test piping. Hole A was plugged immediately after the addition of the 40°C water, and the amount of foam (volume of foam formed) was determined 5 minutes after the addition of the water.

[0055] 2. Test Results The results are shown in Table 2. Under test conditions 1 and 2, the cleaning agent composition of Example 1 showed high foaming properties in the test piping simulating a washbasin, generating sufficient foam. In particular, under test condition 2, where 40°C water was added after the cleaning agent composition was introduced, the foaming properties were further improved. In a washbasin, the volume of the flow path from the water seal of the drain pipe to the overflow opening is usually about 150 to 547 ml. Therefore, if a foaming volume of 530 ml or more is observed in this test, it can be said that simply adding the cleaning agent to the drain pipe will fill almost the entire overflow flow path with foam, making it possible to clean the overflow flow path. In particular, under conditions where a foaming volume of 550 ml or more, especially 700 ml or more, is observed in this test, the overflow flow path can be filled with sufficient foam, and a significant improvement in the cleaning effect of the overflow flow path can be expected.

[0056] [Table 2]

[0057] Test Example 2 1. Test Method Powdered detergent compositions with the compositions shown in Table 3 were prepared, and their foaming properties were evaluated using the following method. First, 500 ml of distilled water at 5°C or 30°C was placed in a 2 L graduated cylinder. Next, 10 g of the powdered detergent composition was added to the graduated cylinder, and the amount of foam was determined after 1 minute and 10 minutes. The amount of foam was determined by subtracting 500 ml from the value on the scale at the top of the foam.

[0058] 2. Test Results The results are shown in Table 3. It was found that the cleaning agent compositions of Examples 1 to 5 exhibited high foaming properties, to the extent that the foam generated when introduced into a drainpipe could backflow and fill the overflow channel. In particular, the cleaning agent composition of Example 1, which used sodium α-olefin sulfonate as the surfactant, exhibited remarkably high foaming properties when using distilled water at 30°C, and was confirmed to be particularly suitable for cleaning overflow channels.

[0059] [Table 3]

[0060] Test Example 3 The cleaning agent composition of Example 1 shown in Table 1 was used to clean the overflow channel of an actual washbasin (FTV1N-605SY / VP1W, LIXIL Corporation).

[0061] Specifically, 20g of the cleaning agent composition of Example 1 was poured into the drainpipe through the drain of the washbasin, and then 50ml of 40°C water was poured in and the drain was immediately covered. Figure 3A shows a photograph of the washbasin observed 3 minutes after the water was poured in. Approximately 1 minute after the water was poured in, foam generated by the cleaning agent composition was overflowing from the overflow opening, indicating that the overflow channel had been cleaned.

[0062] For comparison, the test was also conducted under the same conditions as above, except that the drain was not covered after water was added. Figure 3B shows a photograph of the sink's condition 3 minutes after water was added. When the drain was not covered after water was added, foam generated by the cleaning agent composition overflowed from the drain, but no foam overflowed from the overflow port.

[0063] In other words, it was found that by putting the cleaning agent composition of Example 1 into a drainpipe and blocking the drain outlet, the overflow channel can be filled with foam generated from the cleaning agent composition, thereby cleaning the overflow channel. [Explanation of symbols]

[0064] 1. Bowl section 2 Drain port 3 Overflow holes 4 Drainage channel 41 U-shaped section of drainage channel 5. Overflow channel 6. Test piping 7 stoppers 8 water A hole

Claims

1. A cleaning agent composition for the overflow channel of a washbasin, comprising a bicarbonate and / or carbonate, an acid, and α-olefin sulfonate and / or a salt thereof, in solid form, which is used by pouring it into the drainpipe through the washbasin drain and then sealing the drain.

2. Furthermore, the cleaning agent composition according to claim 1, further comprising a bleaching agent.

3. The detergent composition according to claim 1 or 2, wherein the acid is citric acid.

4. A method for cleaning the overflow channel of a washbasin, comprising pouring the cleaning agent composition described in any one of claims 1 to 3 into the drainpipe from the washbasin drain to block the drain.

5. The cleaning method according to claim 4, wherein the cleaning agent composition is poured into the drainpipe from the drain of the washbasin, and then water is poured into the drainpipe from the drain to seal the drain.