JP2659891B2 - Cleaning method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning method, and more particularly to a method for removing dirt substances such as oily dirt adhering to inclined surfaces and vertical surfaces of a kitchen and its surroundings such as a ventilation fan, a range, a wall and the like. The present invention relates to a cleaning method that can be efficiently removed.

[0002]

BACKGROUND OF THE INVENTION Oils and fats used at home include heat, sunlight, trace amounts of metals,
Deteriorated by the action of oxygen in the air and converted into resin, semi-dried or carbonized to strengthen the bond with the base material surface, resulting in strong degraded oil stains and adhered to kitchen ventilation fans, ranges, walls, etc. I do. Examples of such a strong modified oil stain cleaner include JP-B-50-40126 and JP-A-5-40126.
From the viewpoints of detergency and damage to a substrate, an alkylene glycol alkyl ether-based solvent obtained by adding ethylene oxide and / or propylene oxide to a lower alcohol, an alkali agent and a surfactant are described as main components in JP-A-4158408. Something to do is suggested. As a method for cleaning the oily dirt, a method of applying the cleaning agent in a liquid state to the dirt surface, and a method of spraying the dirt surface as a mist or foam by a trigger are generally adopted.

However, in the above-mentioned coating method,
The vertical surface, there is a problem that the cleaning agent is difficult to stop on the inclined surface, and, in the above-described spraying method, the liquid splatters when spraying, a problem that rebound occurs,
Further, there is a problem that the above-mentioned cleaning agent does not sufficiently stay on the inclined surface and the vertical surface even in the form of foam. On the other hand, a method of using the cleaning agent in an aerosol has been proposed for the purpose of improving the retention of the cleaning agent on inclined surfaces and vertical surfaces, and reducing the rebound of the liquid. The method is
Since it is necessary to use a gas such as LPG, the cost increases, and there is a problem in terms of environmental pollution and the like.

In order to solve the above-mentioned problem, various containers have been proposed for foaming the above-mentioned cleaning agent without using gas (for example, Japanese Patent Application Laid-Open No. 49-4813). A cleaning agent that efficiently adheres as a foam to an inclined surface or a vertical surface has not been sufficiently studied, and particularly, oil stains and the like adhered to a kitchen and its surroundings, such as a ventilation fan, a range, and a wall. At present, a cleaning method that can be efficiently removed has not yet been proposed.

Accordingly, an object of the present invention is to efficiently attach a cleaning composition as a foam to an inclined surface, a vertical surface, etc. of a kitchen and its surroundings such as a ventilation fan, a range, a wall, etc.
It is an object of the present invention to provide a cleaning method capable of effectively, safely, and easily removing dirt substances such as oil stains attached to the inclined surface, the vertical surface, and the like.

[0006]

Means for Solving the Problems As a result of intensive studies, the present inventors have obtained a cleaning composition containing a specific amount of a specific surfactant, a specific water-soluble solvent and a specific amine compound, respectively. It has been found that the above object can be achieved by performing cleaning with a specific foaming means as a foam having an apparent specific gravity in a specific range.

That is, the present invention has been made based on the above-mentioned findings, and a cleaning composition containing the following components (a), (b) and (c) has an apparent specific gravity of 0.02 by foaming means. A cleaning method comprising attaching a contaminant attached to the surface of the object to be cleaned, after adhering to the surface of the object to be cleaned as a foam of up to 0.25 g / ml,
Said a) component, said b) component and said c) of the cleaning composition
The ratio of components is the following points of triangular coordinates: ',', 'and
”Are sequentially connected to form a square .“ [A) 25: b) 60: c) 15] “[a) 5: b) 70: c) 25]” [a) 5: b) 35 : C) 60] '[a) 25: b) 25: c) 50] The foaming means is provided on the container body and the opening of the container body.
Cap having gas-liquid mixing part and mesh attached
With the cap in a state of being communicated with the gas-liquid mixing section.
Dipchi supported and inserted into the container body
And a nozzle installed on the discharge side of the gas-liquid mixing section.
And a cleaning method characterized by using a foaming container comprising: a) 0.1 to 15% by weight of a surfactant; b) a compound represented by the following general formula [formula 6] (same as the above [formula 1]); And a water-soluble solvent composed of at least one compound selected from the group consisting of compounds represented by the following general formula [Chemical Formula 8] (the same as [Chemical Formula 3]).
C) an amine compound represented by the following general formula [formula 9] (same as the above [chemical formula 4]) and / or an amine compound represented by the following general formula [formula 10] (the same as the above [chemical formula 5]) Amine compound 0.1-1
0% by weight.

[0008]

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[0009]

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[0010]

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[0011]

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[0012]

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The above-mentioned "apparent specific gravity" is a value calculated by injecting a predetermined amount of a foam of the cleaning composition of the present invention into a measuring cylinder, measuring the volume and weight of the foam.

Hereinafter, the cleaning method of the present invention will be described in detail. The component a) used in the cleaning composition used in the present invention is a surfactant, preferably an anionic surfactant and / or a nonionic surfactant. As the anionic surfactant, a sulfonate-based anionic surfactant and a sulfate-based anionic surfactant are generally used. As the sulfonate-based anionic surfactant, a linear or branched alkyl (C ₈
-C ₂₂₎ benzenesulfonate, long chain alkyl (C ₈ ~
C ₂₂₎ sulfonates, long chain olefins (C ₈ ~C ₂₂₎ sulfonic acid salts, and the like. As the sulfate-based anionic surfactants, long-chain monoalkyl (C _{8 to} C
₂₂₎ sulfates, polyoxyethylene (1-6 moles) long chain alkyl (C ₈ -C ₂₂₎ ether sulfate, polyoxyethylene (1-6 moles) alkyl (C ₈
To C ₁₈ ) phenyl ether sulfate. As a cation as a counter ion of these anionic surfactants, alkali metal ions such as sodium and potassium, and alkanolamine ions such as monoethanolamine, diethanolamine and triethanolamine are preferably used. As the anionic surfactant, a sulfonate-based anionic surfactant surfactant is particularly preferable from the viewpoint of detergency and the like.

Examples of the nonionic surfactant include polyoxyethylene (6-35 mol) long-chain alkyl (primary or secondary C ₈ -C ₂₂ ) ether and polyoxyethylene (6-35 mol). ) Alkyl (C ₈ -C ₁₈ ) phenyl ethers, polyoxyethylene polyoxypropylene block copolymers, alkyl glycosides represented by the following general formula [Formula 11], and the like.

[0016]

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The component (b) used in the cleaning composition used in the present invention is a compound represented by the above general formula [6], a compound represented by the above general formula [7], and a compound represented by the above general formula [7]. It is a water-soluble solvent consisting of one or more compounds selected from the group consisting of the compounds represented by Chemical Formula 8. Preferred examples of the compound represented by the general formula [Formula 6] include diethylene glycol monobutyl ether, polyoxyethylene (m = 2) polyoxypropylene (n = 1) glycol hexyl ether, and the like.
In the above general formula [Chemical formula 6], when R ₁ or R ₂ is a compound having more than 8 carbon atoms, the day-to-day stability of the cleaning composition is reduced, and further, m or n is 8 If it exceeds, the cleanliness deteriorates. Preferred examples of the compound represented by the general formula [Chemical Formula 7] include, for example, preferably 1,3-dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone, and the like. Examples of the compound represented by the general formula [Formula 8] include, for example, 3-
Methoxy-3-dimethylbutanol, 3-ethoxy-3
-Dimethylbutanol and the like are preferred. .

The component c) used in the cleaning composition used in the present invention may be an amine compound represented by the above-mentioned general formula [Chemical formula 9] and / or an amine compound represented by the above-mentioned general formula [Chemical formula 10]. Compound. Preferred examples of the amine compound represented by the general formula [Formula 9] include monoethanolamine, diethanolamine, monopropanolamine, and N-methylpropanolamine.
1 such as monoethanolamine and monopropanolamine
Grade amines are preferred from the viewpoint of storage stability of the cleaning composition. Preferred examples of the amine compound represented by the general formula [Formula 10] include morpholine and N-ethylmorpholine.

The content of the component (a), the component (b) and the component (c) in the cleaning composition is 0.1% for the component (a).
-15% by weight, b) component 1-25% by weight, c) component 0.
It is in the range of 1 to 10% by weight. Said a) component, said b)
When the content of the component and the component c) is out of the above range, the cleaning ability against oil stains such as denatured oil is reduced. or,
In the present invention, the ratio (weight basis) of each component is
The following points ',', 'and' on the triangular coordinates , preferably
The following points ",", "and", located to the quadrangle sequentially connecting by forming respectively.

'[A) 25: b) 60: c) 15]' [a) 5: b) 70: c) 25] '[a) 5: b) 35: c) 60]' [a) 25 : B) 25: c) 50]

"[A) 15: b) 60: c) 25]" [a) 5: b) 65: c) 30] "[a) 15: b) 40: c) 45]" [a) 25 : B) 40: c) 35]

Further, squares ",", "," formed by sequentially connecting the above ",", "and".
Are sequentially connected to each other, and the squares formed are shown by the triangular coordinates in FIG. When the ratio of each component is out of the above range, the cleaning power for oil stains such as denatured oil is reduced, which is not preferable for such stains.

It is preferable to further add d) a sequestering agent to the cleaning composition for the purpose of improving the cleaning power. The sequestering agent is generally an oil stain around a kitchen at home, which is composed of a complex oil such as a denatured oil and an inorganic stain, by chelating metal ions that are considered to be a binder of the stain. ,
It is a component that improves cleaning power. As the sequestering agent, any one can be used as long as it is generally used in a cleaning composition, and it is not particularly limited. For example, hydroxycarboxylic acids such as citric acid or malic acid, and pyrroline Examples include condensed phosphoric acids such as acids, aminocarboxylic acids such as ethylenediaminetetraacetic acid and hydroxyethylenediamineacetic acid, and water-soluble salts thereof. Preferred examples of the water-soluble salt include alkali metal salts such as sodium salt and potassium salt, ammonium salt, alkanolamine salt and the like. The mixing ratio of the component (d) is 0.00% in the entire cleaning composition.
The content is preferably in the range of 1 to 1% by weight. When the amount of the component (d) is less than 0.001% by weight, the cleaning power is not improved. It is not industrially and economically undesirable. In the cleaning composition, the components other than the components a), b) and c), and the component d) which is added as needed, are usually water.

The cleaning composition may further contain a usual dispersant, a thickener, and the like, as long as the object of the present invention is not impaired.
Additives such as fragrances, dyes, pigments, preservatives and bactericides can also be added.

In order to prepare the cleaning composition, the component a), the component b) and the component c) are mixed with water and, if necessary, the component d) and the additives. Can be easily obtained.

In order to carry out the cleaning method of the present invention, the cleaning composition is first treated with a foaming means in an amount of 0.02 to 0.02.
0.25 g / ml, preferably 0.03 to 0.1 g / m
1 to form a foam having an apparent specific gravity. The apparent specific gravity is
Below 0.02 g / ml, the foam volume is high, resulting in a reduced amount of cleaning composition in contact with the soil, and above 0.25 g / ml, the foam becomes watery. As a result, the stagnation property on the inclined surface is reduced, and as a result, the cleaning performance is reduced and the liquid easily flows to an unnecessary place. Then, the foam is adhered to the surface of the object to be cleaned, and preferably left for 3 to 30 minutes. Cleaning can be performed by entraining and removing the solid.

In the cleaning method of the present invention, the following specific foaming container is used as foaming means. A container body ,
A cap having a gas-liquid mixing unit and a mesh attached to an opening of the container body, and a dip tube supported by the cap in a state of being communicated with the gas-liquid mixing unit and inserted into the container body If, comprising a nozzle disposed on the discharge side of the gas-liquid mixing portion foaming vessel.

Hereinafter, one example of the foaming container will be described in detail with reference to FIGS. FIG. 2 is a cross-sectional view showing one embodiment of the foam container. In FIG. 2, the foam container 10 has a squeezable container body 11.
The cap 12 is attached to the opening 11A of the
The gas-liquid mixing section 13 and the mesh 13B are provided on the central axis of the. In addition, the gas-liquid mixing section 13 includes a tube transfer section 13A. Then, the foaming container 10 connects the dip tube 14 to the tube connecting portion 13 of the gas-liquid mixing portion 13.
A is fitted through a fixed gap (becoming an air passage or a liquid passage). Thereby, the dip tube 14
Is connected to the gas-liquid mixing unit 13 and the cap 1
2 and is inserted into the container body 11.
Further, the foam container 10 is provided with a gas-liquid mixing section 13 of the cap 12.
A nozzle 15 that can be opened and closed is screwed to the discharge side (outside the mesh 13B). The nozzle 15 is rotated by, for example, 90 degrees with respect to the cap 12, and is switched between a closed position and an open position. In the closed position, the sheet portion 16 of the nozzle 15 is in close contact with the plug portion 17 of the cap 12, and in the open position, the sheet portion is 16 can be formed apart from the plug portion 17 to form a discharge path. Note that the discharge port 18 of the nozzle 15 is
The ejection direction at the above-mentioned open position is determined by making a constant inclination angle with respect to the center axis of the second. The foam container 10 is provided with a ball-shaped air return valve 2 in the air return path 21 of the cap 12.
2 is provided. The air return valve 22 increases the pressure in the container that is squeezed in close contact with the upper sheet portion 21A of the air return path 21 when discharging bubbles. And the air return valve 2
2 is the lower protrusion 21 of the air return path 21 after the end of the bubble discharge.
B, and external air is introduced into the container by negative pressure in the container based on the restoring force of the squeezed container.

That is, in the foam container 10, the following
It works like By rotating the nozzle 15, the sheet portion 16 of the nozzle 15 is separated from the plug portion 17 of the cap 12, and FIG.
A bubble discharge path indicated by an arrow A in (C) is formed. The user squeezes the container body 11. Thereby, the mesh 13B is formed by mixing the air (or liquid) directly introduced into the gas-liquid mixing unit 13 of the cap 12 with the liquid (or air) introduced into the gas-liquid mixing unit 13 via the dip tube 14. Is formed, and this bubble is discharged from the discharge port 18 of the nozzle 15 through the above-described bubble discharge path. At this time, the air return valve 22 comes into close contact with the seat portion 21A of the air return path 21 to increase the pressure in the container. After the liquid is discharged, the air return valve 22 is locked to the protrusion 21B of the air return path 21, and the external air is indicated by an arrow B in FIG. Introduce into the container from the air return path. At this time,
The external air tends to pass through the reverse path of the above-described bubble discharge path (A), but passes through the above-described air return path (B) because the residual bubbles of the bubble discharge path (A) become resistance.

In the foam container 10, the dip tube 14 is inserted into the container body 11 in a straight shape inclined at an angle θ with respect to the center line of the container body 11,
The free opening end of the dip tube 14 is set near the bottom corner of the container body 11. For example,
In the foam container 10, the center axis of the cap 12 is aligned with the center line of the container body 11 (the center of the opening 11A and the container body 11).
An opening 11A is provided so as to be inclined by an angle θ with respect to a line connecting the center of the bottom of the cap 12 and a straight dip is formed in the tube connecting portion 13A of the gas-liquid mixing portion 13 provided on the central axis of the cap 12. The tubes 14 are connected. The dip tube 14 has a hardness that does not bend due to its own weight.

Next, the operation of the foam container 10 will be described. The dip tube 14 is inserted into the container body 11 in a straight shape inclined with respect to the center line of the container body 11, and the free open end of the dip tube 14 is set near the bottom corner of the container body 11. Therefore, bubbles can be generated and discharged as shown in (a) and (b) below. (A) As shown in FIG. 3 (A), when the container 10 is used to be erected, the free opening end of the dip tube 14 is located in the liquid in the container, and the gas-liquid mixing section 13 of the cap 12 is used. Is positioned above the liquid level in the container,
As a result, the air directly introduced into the gas-liquid mixing section 13 of the cap 12 and the liquid introduced into the gas-liquid mixing section 13 via the dip tube 14 are mixed in the gas-liquid mixing section 13 to generate bubbles. Can be done. (B) In each of the case where the container 10 is inverted as shown in FIG. 3B and the case where the container is substantially horizontal as shown in FIG. With the opening end positioned above the liquid level in the container, the gas-liquid mixing section 13 of the cap 12 is positioned in the liquid in the container, and as a result, the liquid directly introduced into the gas-liquid mixing section 13 of the cap 12; The gas introduced into the gas-liquid mixing unit 13 via the dip tube 14 is
To form a foam.

Here, the dip tube 14 supported by the cap 12 is formed in advance so as to form a straight shape inclined with respect to the central axis of the container body 11. Therefore, the insertion direction of the tube 14 into the container main body 11 is linear, and the assembling workability of the container 10 is good. In the foaming container, the gas-liquid mixing ratio can be arbitrarily adjusted by adjusting the inner diameter of the dip tube or the area of the fixed gap between the tube connecting portion and the dip tube. The apparent specific gravity described later can be adjusted. The diameter of the mesh is 100 to 36.
It is preferred to be in the range of 0μ. If the diameter of the mesh is out of the range, the apparent specific gravity is not in the range, which is not preferable.

The objects to be cleaned which can be cleaned by the cleaning method of the present invention include a ventilation fan, a kitchen such as a microwave oven wall and its surroundings, an automobile, a washroom, a toilet,
An inclined surface, a vertical surface, and the like made of a material such as glass, plastic, pottery, and metal such as a bath and an outer wall of a building can be given. Further, examples of the soil substance that can be removed by the cleaning method of the present invention include oil soil substances such as denatured oil, and composite soil substances of the oil soil substance and inorganic soil.

[0034]

The present invention will be described in more detail with reference to the following Examples and Comparative Examples, but the present invention is not limited thereto.

[0035]

Examples and Comparative Examples In Table 1 below, A to AD
(Example),E (reference example),Sets indicated by I to K (Comparative Example)
Prepared cleaning compositions and apply them to these cleaning compositions.
Then, using the foam container shown in FIG.
A foam having an apparent specific gravity shown in [Table 1] is generated, and
Retention and cleaning power were evaluated as follows. Them
The results are shown in [Table 1]. In addition, A to E, I to K,
Triangular coordinates of the ratio of each of the components a), b) and c)
Is shown in FIG. 1) Evaluation of foam retention and detergency Power After heating tempura oil at 200 to 220 ° C for 20 hours, 1
Reduce oil by treating at 00 ° C for 10 hours while blowing air.
It was made. Apply this deteriorated oil to the surface of the stainless steel plate
Then, it was left at room temperature for 3 months. Tilt this stainless plate
Tilted at an angle of 15 °, on the surface of this stainless steel plate
Apply the foam of each cleaning composition using the foaming container
To adhere and determine the retention of foam after standing for 10 minutes.
After that, wash the stainless steel plate with water and visually check the cleansing power.
Judged. Also, at the same time, foam in the measuring cylinder under the same conditions.
The cleaning composition in the form of a powder and measure its volume and weight.
The apparent specific gravity of the foam was calculated. In addition, the retention of foam,
The evaluation criteria for cleaning power and cleaning power are as follows. <Retention of foam> ・ ・ ・: Most of the foam remains. (The liquid is very hard to drip
○) A considerable part remains (liquid is hard to drip)
No). Δ: A part of the liquid flows (the liquid is slightly dripping). X: A considerable part flows (the liquid is easy to drip). <Cleaning power> ◎ ・ ・ ・ Oil dirt is completely removed.・ ・ ・: A considerable part of oil stains fell off. Δ: Part of oil stains dropped off. ×: Almost no oil stains are removed.

[0036]

[Table 1]

[0037]

According to the cleaning method of the present invention, a ventilation fan,
The cleaning composition is efficiently attached as a foam to a slope, a vertical surface, etc. of a kitchen and its surroundings, such as a range, a wall, etc., to effectively and safely remove dirt substances attached to the slope, a vertical surface, etc. , And can be easily removed.

[Brief description of the drawings]

FIG. 1 shows a) a cleaning composition used in the present invention.
It is a triangular coordinate representing the ratio of the component, the component b) and the component c).

FIG. 2 is a sectional view showing a foaming container preferably used in the present invention.

FIG. 3 is a schematic view showing an example of use of the foam container of FIG. 2;

FIG. 4 is triangular coordinates showing the ratio of components a), b) and c) of the cleaning compositions prepared in Examples and Comparative Examples.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Foaming container 11 Container main body 11A Opening 12 Cap 13 Gas-liquid mixing part 13A Tube connection part 13B Mesh 14 Dip tube

Continuation of the front page (56) References JP-A-60-141800 (JP, A) JP-A-1-221498 (JP, A) JP-A 2-289698 (JP, U) JP-A 5-88653 (JP, A) , U)

Claims (2)

(57) [Claims] 1. a) 0.1 to 15% by weight of a surfactant; b) a compound represented by the following general formula [1]; a compound represented by the following general formula [2]; 1 to 25% by weight of a water-soluble solvent comprising at least one compound selected from the group consisting of compounds represented by the following chemical formulas; and c) an amine compound represented by the following general formula:
Or an amine compound represented by the following general formula [Formula 5]
After the cleaning composition containing 1 to 10% by weight is adhered to the surface of the object to be cleaned by foaming means as a foam having an apparent specific gravity of 0.02 to 0.25 g / ml, the object to be cleaned is A cleaning method that removes dirt attached to the surface by entrainment.
The cleaning composition comprising the component a), the component b) and
Note that the proportions of the components c) are the following points ',',
" [A] 25: b) 60: c) 15]" [a) 5: b) 70: c) 25] "[a) 5: b ) 35: c) 60] '[a) 25: b) 25: c) 50] The foaming means is provided on the container body and the opening of the container body.
Cap having gas-liquid mixing part and mesh attached
With the cap in a state of being communicated with the gas-liquid mixing section.
Dipchi supported and inserted into the container body
And a nozzle installed on the discharge side of the gas-liquid mixing section.
A cleaning method characterized by using a foaming container comprising : Embedded image Embedded image Embedded image Embedded image Embedded image 2. The cleaning composition according to claim 1 , further comprising: d) metal ion
The cleaning method according to claim 1 , further comprising a blocking agent .