JP7264733B2 - Aerosol product for cleaning the drainage path of the washbasin and method for cleaning the drainage path of the washbasin - Google Patents

Description

TECHNICAL FIELD The present invention relates to an aerosol product and cleaning method for cleaning the drain path of a washbasin.

Organic stains such as soap scum and dirt tend to adhere to the drainage path of the washbasin, and since it is always in contact with water, slime, mold, and foul odors are likely to occur. However, these cleaning operations are unpleasant and burdensome. For this reason, various cleaning agents have been proposed for the purpose of simply cleaning the drainage path, and various dosage forms such as liquid agents, powder agents, tablets, and aerosols are known (Patent Document 1).

Japanese Patent Application Laid-Open No. 2008-150461

Here, by always blocking the middle of the drainage path with water (sealing water) in the drainage equipment of the washbasin, it is possible to block the bad smell of the sewage system and gases such as hydrogen sulfide, and prevent harmful insects from entering the house. A drainage trap is provided to prevent intrusion.
In the above-described conventional technology, the cleaning range was limited to the area from the drain outlet to the front of the drain trap (sealed water).

In addition, the washbasin is provided with an overflow hole (full-water prevention hole) at the top of the washbasin as an auxiliary drain port so that water does not overflow from the washbasin when the drain port is closed. The overflow holes are of various sizes, and the overflow channel leading from the overflow hole to the drain (main drain) runs into the back of the washbasin. Therefore, it was difficult to clean the overflow flow path with the above-described conventional technique.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide means for easily cleaning all drain paths of a washbasin.

As a result of extensive studies, the inventors of the present invention have found that by using an aerosol product that satisfies a specific injection amount, a specific foam liquefaction time, and a specific foam specific gravity, the cleaning agent is injected from the drain outlet into the drainage channel. The present inventors have found that the drainage path can be filled with foam containing the cleaning agent, and the drainage path of the washbasin can be easily washed over a wide area.

That is, the present invention relates to the following aerosol product and cleaning method.
[1] foam containing cleaning agent is formed by jetting,
An aerosol product for cleaning the drainage channel of a washbasin, having an injection amount of 1 mL/sec or more, a foam 50% liquefaction time of 20 seconds or more, and a foam specific gravity of 0.3 g/mL or less.
[2] The aerosol product of [1], wherein the drainage path includes an overflow channel.
[3] A method for cleaning a drainage channel of a washbasin, comprising:
the drainage path includes an overflow channel;
[1] A cleaning method, wherein the aerosol product according to [1] is used to inject a cleaning agent into a drainage channel from a drainage port to fill the drainage channel with bubbles containing the cleaning agent.
[4] The cleaning method according to [3], wherein the drainage path further includes a drainage channel after the drainage trap.

According to the aerosol product and the cleaning method of the present invention, the drainage path of the washbasin can be easily cleaned over a wide area including the overflow channel.

FIG. 1 is a cross-sectional view showing an example of the aerosol product of the present invention. FIG. 2 is an explanatory diagram showing an injection test of the embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail.
<Aerosol products>
The aerosol product for cleaning the drainage path of the washbasin according to the present invention (hereinafter also referred to as the aerosol product of the present invention) forms bubbles containing a cleaning agent by spraying, and the spray amount is 1 mL / sec or more. The generated foam has a 50% liquefaction time of 20 seconds or more and a foam specific gravity of 0.3 g/mL or less.

When the jetting amount is 1 mL/sec or more, the foam jetted from the drain port hits the sealing water and flows backward, and then the overflow channel is filled with the foam. The injection amount is preferably 2 mL/second or more, more preferably 5 mL/second or more, and still more preferably 7 mL/second or more.
In order to obtain the above-mentioned desired injection amount, for example, the stem hole area, the nozzle hole area, the type and pressure of the propellant, the mixing ratio of the propellant and the cleaning agent undiluted solution, etc., which will be described later, can be adjusted.

In the aerosol product of the present invention, the 50% liquefaction time of the generated foam is 20 seconds or longer. until the bubbles reach The 50% liquefaction time is an index representing the speed at which the foamed foam breaks when sprayed, and specifically it is the time until the liquefaction rate of the foam reaches 50%. The longer the time to reach 50% liquefaction time, the higher the persistence of the formed foam.
The 50% liquefaction time can be defined by the following method. First, the liquefaction rate is calculated by the following formula from the mass of the retained liquid formed by the bubble breaking and the mass of the total discharged liquid. Next, based on the liquefaction rate measured over time within an arbitrary time, draw an approximate curve by plotting 4 or more points (including 0 minutes) so that the liquefaction rate is greater than 50%. Calculate the time corresponding to % liquefaction (50% liquefaction time).
Liquefaction rate (%)=mass of retained liquid/mass of total discharged liquid×100
The 50% liquefaction time is preferably 60 seconds or longer, more preferably 120 seconds or longer, still more preferably 180 seconds or longer.
In order to obtain the above desired liquefaction time, for example, the composition of the cleaning agent undiluted solution, the type of propellant, the mixing ratio of the propellant and the cleaning agent undiluted solution, etc., which will be described later, can be adjusted.

In the aerosol product of the present invention, it is preferable that the generated foam has a specific gravity within a specific range. The foam specific gravity is an index representing the volume of foam formed by the discharged content liquid, and is obtained by dividing the mass of the foam by the volume, and the unit is g/mL. The lower the foam specific gravity, the more air there is, meaning that the foam is large and coarse (high foamability). It is in.
The foam specific gravity is preferably 0.3 g/mL or less, more preferably 0.1 g/mL or less, from the viewpoint that the liquid is not excessive and the proportion of bubbles rather than foam is large. More preferably, the amount is 0.05 g/mL or less from the viewpoint of good balance between the amount of foam and the amount of liquid and efficient foaming, and 0.001 g/mL or more from the viewpoint of preventing rough bubbles. More preferably, it is 0.01 g/mL or more, and even more preferably 0.02 g/mL or more, from the viewpoint of good balance between the amount of foam and the amount of liquid and efficient foaming.

If the specific gravity of the foam is too high, it becomes a bubble, and the foam is easily broken and does not easily reach the overflow hole. On the other hand, if the specific gravity of the foam is too small, the bulk of the foam may be too large and the area of contact between the foam and the washing area may be reduced. When the specific gravity of the foam is within the above range, the foam has sufficient foamability to reach the overflow hole.
In order to obtain the above-mentioned desired foam specific gravity, for example, the composition of the cleaning agent undiluted solution, the type of the propellant, the mixing ratio of the propellant and the cleaning agent undiluted solution, etc., which will be described later, can be adjusted.

The cleaning agent stock solution for the aerosol product of the present invention preferably has a viscosity at 25° C. of 1 to 10000 mPa·s, more preferably 1 to 5000 mPa·s, even more preferably 1 to 1000 mPa·s. . The viscosity within the above range contributes to the sustainability of foam.
In order to achieve the above-described desired viscosity, for example, adjusting the mixing ratio of a thickener, a solvent, and a surfactant, which will be described later, can be mentioned.

The aerosol product of the present invention contains a surfactant in the detergent concentrate as a cleaning component and for foam control purposes. Surfactants include alkyl glucosides such as decyl glucoside, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkylamines, polyoxyethylene alkyl ethers, polyethylene glycol fatty acid esters, polyoxyethylene glycerol fatty acid esters, polyoxyethylene alkyl ether fatty acids. Nonionic surfactants such as esters, polyoxyethylene sorbitan fatty acid esters, polyglycerin fatty acid esters, alkyl alkanolamides such as cocamide methyl MEA, alkyl sulfates such as amine alkyl sulfates, ammonium alkyl sulfates, sodium lauryl sulfate, polyoxyethylene alkyl sulfates , polyoxyethylene alkyl sulfate amine, polyoxyethylene lauryl ether sulfate triethanolamine and other polyoxyethylene alkyl ether sulfates, alkyl phosphates, sarcosine salts, polyoxyethylene alkyl ether phosphates, sodium trideceth-4 carboxylate Anionic surfactants such as alkyl ether carboxylates and sulfonates, cationic surfactants such as alkylammonium salts and alkylbenzylammonium salts, amino acid types such as dodecylaminoethylaminoethylglycine, alkylhydroxysulfobetaine, lauryl Examples include alkylamine oxides such as dimethylamine oxide, alkylbetaines, fatty acid amidopropylbetaines, alkylimidazoles, amphoteric surfactants such as sodium lauroyl glutamate, and the like, which may be used singly or in combination of two or more.
Among them, an anionic surfactant is preferable from the viewpoint of foamability.

The surfactant is contained preferably in an amount of 0.1 to 20% by mass, more preferably 0.5 to 10% by mass in the detergent stock solution. A desired foam specific gravity can be achieved by setting the content within such a range.
Also, the content of the nonionic surfactant is preferably 0.1 to 20% by mass, more preferably 0.3 to 10% by mass. The content of the anionic surfactant is preferably 0.1 to 20% by mass, more preferably 0.3 to 10% by mass. The content of the cationic surfactant is preferably 0.01-20% by mass, more preferably 0.1-10% by mass. The amphoteric surfactant content is preferably 0.01 to 20% by mass, more preferably 0.1 to 10% by mass.

Preferably, the aerosol product of the present invention further comprises a thickening agent in the detergent concentrate. The thickener is blended for the purpose of improving the persistence of foam and imparting appropriate viscosity to the cleaning agent so that it reaches and adheres to the drain port and drain pipe, thereby enhancing the cleaning effect. Examples of thickeners include synthetic high-molecular polysaccharides such as xanthan gum, natural high-molecular polysaccharides, celluloses such as hydroxyethyl cellulose and carboxymethyl cellulose, clay minerals such as bentonite, semi-synthetic polymers such as cationized guar gum, and polyvinylpyrrolidone. , sodium alginate, alginic acid ester, polyethylene glycol, polypropylene glycol, etc., and may be used alone or in combination of two or more. Among them, xanthan gum and hydroxyethyl cellulose are preferred.

The thickening agent is contained preferably in an amount of 0.01 to 15% by mass, more preferably 0.05 to 5% by mass, in the detergent stock solution. Appropriate viscosity can be obtained when the content is in such a range.

The aerosol product of the present invention preferably further contains a solvent in the detergent undiluted solution from the viewpoint of solubility of ingredients. Examples of the solvent include water, ethanol, isopropanol, ethylene glycol, propylene glycol, 1,3-butylene glycol, hexylene glycol, diethylene glycol, dipropylene glycol, glycerin, etc., and may be used alone or in combination of two or more. good too. Among them, water and ethanol are preferable.

The solvent is contained preferably in an amount of 1 to 50% by mass, more preferably 5 to 30% by mass, in the cleaning agent stock solution. When the content is in such a range, it is possible to improve the solubility of the ingredients and obtain appropriate foaming and retaining properties.

In the aerosol product of the present invention, in order to achieve a suitable foam specific gravity and foaming/retaining properties of the mixture, a component having an appropriate antifoaming (defoaming) action may be blended in the cleaning agent undiluted solution. good. Examples of components having appropriate antifoaming (defoaming) action include silicone antifoaming agents, ester antifoaming agents, ether antifoaming agents, polyalkylene oxide antifoaming agents, and alkyl phosphate antifoaming agents. , and acetylene glycol-based defoaming agents, alcohol-based defoaming agents, mineral oil-based defoaming agents, vegetable oil-based defoaming agents, synthetic oil-based defoaming agents, silica, oil-soluble fragrances, metallic soaps, etc., and one or You may use it in combination of 2 or more types.
The content of the antifoaming (defoaming) component in the detergent stock solution is preferably 0.01 to 10% by mass, more preferably 0.01 to 5% by mass.
Some antifoaming (defoaming) components, such as alcohol, also function as a solvent. In that case, the content shall be included in the content as a solvent component.

In addition to the above ingredients, the cleaning agent stock solution of the aerosol product of the present invention contains various plant extracts such as tea, oyster, camellia, bamboo, grapefruit, yuzu, mandarin orange, and lemon, metal compounds such as silver and copper, and Deodorants and deodorants such as ions, isopropylmethylphenol, benzalkonium chloride, benzethonium chloride, metal compounds such as silver and copper, antibacterial and disinfectants such as ions thereof, insecticides such as pyrethroids, insects such as pyriproxyfen Contains growth regulators, fluorosurfactants, film-forming agents such as polyether-modified silicone, rust inhibitors such as citric acid, antioxidants such as BHA and BHT, fragrances such as floral, bouquet, citrus, and soap. You may

The aerosol product of the present invention can be produced by filling an aerosol can equipped with an injection device with a cleaning agent stock solution containing the above components and a propellant.
Examples of propellants include liquefied petroleum gas (LPG) such as propane, n-butane and isobutane, liquefied gas such as dimethyl ether (DME), compressed gas such as nitrogen, carbon dioxide, compressed air, and nitrous oxide. 1-difluoroethane (HFC-152a), 1,1,1,2-tetrafluoroethane (HFC-134a), 2,3,3,3-tetrafluoropropene (HFO-1234yf), trans-1,3,3 , 3-tetrafluoropropene (HFO-1234ze) and other halogenated carbon gases can be used.
Among these, LPG, dimethyl ether, and HFO-1234ze are preferred, and LPG and HFO-1234ze are more preferred, from the viewpoint of foaming properties and persistence of foam.
When LPG is used as the propellant, the LPG pressure is preferably 0.2 to 0.5 MPa/25° C., more preferably 0.3 to 0.5 MPa/25° C., from the viewpoint of allowing the liquid content to reach the depths of the sealing water. °C is more preferred.

From the viewpoint of jetting power and foam quality, the volume ratio of the detergent stock solution to the propellant in the aerosol can is preferably stock solution:propellant = 50:50 to 99:1, more preferably 70:30 to 95:1. 5, more preferably 80:20 to 90:10.

The aerosol product for cleaning the drainage path of the washbasin of the present invention is not particularly limited, but examples thereof include those shown in FIG.
As shown in FIG. 1 , the aerosol product 1 is an inverted injection device having an aerosol container 2 and an actuator 3 having a pressing member 5 and a mounting member 4 . When in use, as shown in FIG. 2, the aerosol product 1 is turned upside down and the pressing member 5 is brought into close contact with the drain port 12 so as to close it. The hole 6 is opened and a cleaning agent (not shown) is sprayed from the injection port 7 .

The aerosol product injection device of the present invention preferably has a nozzle port and a stem hole valve with 1 to 3 holes. There may or may not be a vapor tap. Preferably, the injection device is an inverted type, and the direction of the injection port is preferably the axial direction of the aerosol body.
The nozzle hole may be circular or rectangular, and preferably has an area of 0.005 to 25 mm ² , more preferably 0.10 to 10 mm ² . In the case of a circular shape, the diameter is preferably 0.1 to 5 mm, more preferably 0.5 to 3 mm.
The stem hole may be circular or square, and preferably has an area of 0.01 to 5 mm ² , more preferably 0.05 to 4 mm ² . In the case of a circular shape, the diameter is preferably 0.3 to 1.2 mm, more preferably 0.6 to 1.2 mm. In the case of a square shape, the size is preferably 0.1 to 1.5 mm×0.1 to 1.5 mm.
The ratio of the nozzle hole area to the stem area (hole area/stem area) is preferably 0.01-500, more preferably 0.05-50, still more preferably 0.1-20.
The injection device is used to obtain the desired injection amount.

<Washing method>
When cleaning the drainage path of the washbasin, the aerosol product of the present invention is used to inject the cleaning agent into the drainage path from the drain port for about 1 to 10 seconds and wait for a predetermined time, preferably 5 minutes or more. Preferably, it should be left for about 10 to 30 minutes. Foam containing the cleaning agent is formed by the injection, and the inside of the drainage channel can be cleaned by filling the drainage channel with the foam containing the cleaning agent. At this time, it is preferable to inject the aerosol product while bringing the injection port of the aerosol product into close contact with the drain port because the foamy cleaning agent is jetted into the drain channel without overflowing from the drain port.

According to the cleaning method of the present invention, by controlling the injection amount of the aerosol product, the 50% liquefaction time of the foam, and the specific gravity of the foam, the vigorously sprayed cleaning agent reaches the water seal of the drain trap, forming dense foam. is formed, not only the drainage channel from the drain outlet to the front of the drainage trap (before sealing water), but also the overflow channel connecting the overflow hole of the washbasin to the drainage channel, and the drainage channel after the drainage trap, that is, , the drainage channels in and downstream of the drainage trap can also be filled with foam and these drainage channels can be cleaned at the same time.
In addition, by adjusting the injection amount of the aerosol product, the 50% liquefaction time of the foam, and the specific gravity of the foam, it is possible to control the spread of the foam that has reached the sealing water, either to the overflow channel or after the drainage trap. can be done.
The shape of the drain trap is not particularly limited, and various shapes such as S-shaped and P-shaped drain traps are applied.

The present invention will be further described with reference to examples below, but the present invention is not limited to the following examples.
[Examples 1 to 15]
A cleaning agent undiluted solution having the composition shown in Table 1 below and a propellant shown in Tables 2 and 3 were mixed at the ratios shown in Tables 2 and 3, and 200 mL of a cleaning aerosol product was filled in a container and tested. used for
The injection device used was an inverted aerosol device having a stem diameter and the number of stem holes shown in Tables 2 and 3, and a straight injection port with an injection port diameter of 1 mm.
Figure 2 shows the injection test.
As the washbasin 10, the drain port 12: 25 mm in diameter, the drain channel (main drain channel) 13: 25 mm in inner diameter, the length from the drain port 12 to the sealing water 14: 240 mm, the overflow channel 16: 25 mm in inner diameter, 290 mm in length, Drainage trap 17 (S-shaped): 525 mm in length was used. The washbasin and drain pipe are made of transparent resin material.
The pressing member 5 of the aerosol product 1 was brought into close contact with the drain port 12, and the cleaning agent was sprayed for 60 seconds. However, when the foam reached the overflow hole within 60 seconds, the injection was terminated at that point. Further, when the foam did not reach the overflow hole even after 60 seconds of spraying, the spraying was terminated at that point.

The liquefaction rate and 50% liquefaction time were evaluated by the following methods.
Dispense about 2g of this product into a weighing container (30mL conical liquid meter), every 30 seconds if the foam breaking speed is high, and every 2 minutes if the foam breaking speed is low (every 3 minutes after 6 minutes) Then, the liquid remaining at the bottom was sampled, and the mass of the entire discharged liquid before sampling the retained liquid and the mass of the sampled retained liquid were measured, and the liquefaction rate was calculated by the following formula.
Liquefaction rate (%)=mass of retained liquid/mass of total discharged liquid×100
Next, based on the liquefaction rate measured over time within an arbitrary time, draw an approximate curve by plotting at least 4 points (including 0 minutes) so that the point where the liquefaction rate is greater than 50%, The time corresponding to 50% liquefaction rate (50% liquefaction time) was calculated.

Foam specific gravity was evaluated by the following method.
About 1 g of this product was discharged into a measuring container (30 mL conical liquid meter), and the maximum volume of foamed foam was measured and calculated by the following formula.
Foam specific gravity (g/mL) = mass of foam/maximum volume of foam

The test results were evaluated by the following.
◎: Bubbles reached the overflow hole and the tip of the sealed water ○: Bubbles reached the overflow hole and did not reach the tip of the sealed water ×: Bubbles reached both the overflow hole and the tip of the sealed water Tables 2 and 3 show the injection amount, liquefaction time, foam specific gravity, and the results of the injection test.

From the above results, it can be seen that the drainage path cleaning aerosol product of the present invention, in which the injection amount, 50% liquefaction time, and foam specific gravity are appropriately controlled, can easily clean a wide area of the drainage path, including the overflow path.

[Example 16]
Using an aerosol product with the same formulation as in Example 12, when the cleaning agent was sprayed into the drain pipe from the drain port of the actual washstand, it was confirmed that bubbles and dirt containing the cleaning agent came out from the overflow hole. . Therefore, according to the aerosol product of the present invention, it can be seen that the user can visually confirm that the dirt inside the overflow channel has been thoroughly cleaned.

1 Aerosol Product 2 Aerosol Container 3 Actuator 4 Mounting Member 5 Pressing Member 6 Stem Hole 7 Spout 10 Washbasin 11 Washbowl 12 Drainage Port 13 Drainage Channel (Main Drainage Channel)
14 Sealing water 15 Overflow hole 16 Overflow channel 17 Drainage trap

Claims (4)

The jetting forms a foam containing cleaning agents,
An aerosol product for cleaning the drainage channel of a washbasin, which has an injection amount of 1 mL/sec or more, a foam 50% liquefaction time of 20 seconds or more, and a foam specific gravity of 0.3 g/mL or less. 2. The aerosol product of Claim 1, wherein the drainage path comprises an overflow channel. A method for cleaning a drainage path of a washstand, comprising:
the drainage path includes an overflow channel;
A cleaning method comprising: using the aerosol product according to claim 1 to inject a cleaning agent into a drainage channel from a drainage port to fill the drainage channel with bubbles containing the cleaning agent. 4. The cleaning method of claim 3, wherein the drainage path further comprises a drainage channel after the drainage trap.

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