JP5231731B2 - Effervescent detergent composition for aerosol with reduced after-draw - Google Patents

Description

The present invention is a detergent composition used in the form of an aerosol for cleaning screen doors, air conditioner filters, window glass, ventilation fans, toilets, bathtubs, automobiles, etc., and has sufficient cleaning power and foaming power. Further, the present invention relates to an aerosol foaming detergent composition that suppresses after-drawing.

2. Description of the Related Art Conventionally, as foamable detergent compositions for aerosols, those obtained by combining one or more surfactants are known. However, most of these compositions cannot obtain sufficient detergency and have poor foaming properties.
Aerosols that inject bubbles tend to have a lot of after-draw after the spray, in the vicinity of the button nozzle, especially as the distance from the stem to the tip of the nozzle increases, the number of bubbles increases. There was a problem of getting on.
There is also a proposal of an aerosol foaming detergent composition (JP-A-4-13800) which is excellent in detergency and foaming properties and is not irritating. However, it was insufficient because of poor cleaning properties and many after-draws.
For screen doors where foamability is particularly important, conventionally, a method of scrubbing with a sponge or scrubber or a method of cleaning using a commercially available cleaning agent has been performed. However, the method of rubbing with a sponge or the like may damage the mesh surface or cause sagging. Some screen cleaners are commercially available, but these do not have sufficient cleaning power, or when sprayed on the mesh surface, there are many bubbles that pass through the mesh surface, and there are sufficient bubbles on the mesh surface. There was a problem of not sticking.
In addition, in Japanese Patent Application Laid-Open No. 10-265800 filed by the applicant of the present application, a detergent composition for screen doors having a pH of 8 to 11 which is weakly alkaline is described. As a measure for after-drawing, which is the main focus of the present application, no particular consideration has been given to specifying the pressure and volume of the propellant.
JP-A-4-13800 JP-A-10-265800

The present invention has a sufficient cleaning power and foaming power by filling a cleaning solution with good cleaning power and foaming power and a specific amount of LPG having a specific pressure, and further has a foaming ability for aerosol with reduced after-drawing. An object is to provide a detergent composition.

In order to solve the above problems, the present invention adopts the following configuration.
(1) (A) Fatty acid soap 0.5-5% by weight, (B) Surfactant 0.5-5% by weight, (C) Metal ion sequestering agent 0.5-6% by weight, (D) Water-soluble A cleaning liquid containing 0.5 to 20% by weight of a solvent and (E) ion-exchanged water is 82 to 92% by volume in an aerosol container, and 8 LPG having a pressure at 20 ° C. of 0.23 to 0.50 MPa is used as a propellant. A foaming detergent composition for aerosols with reduced after-draw, characterized by being filled with -18% by volume and further having a P value of 4.0 or more.
P value = pressure of LPG at 20 ° C. (MPa) × filling amount of LPG (volume%)
(2) when used in the cleaning net face of network door, deposition rate of foam to the network surface is 70% or more aerosol foaming detergent compositions with reduced after-draw according to (1).

Since the foamable detergent composition for aerosol of the present invention has high detergency and foaming power and further suppresses after-drawing, the usability is good, and its practicality is extremely high.

The fatty acid soap of component (A) used in the present invention may be either saturated or unsaturated, and those having 8 to 22 carbon atoms, particularly 10 to 18 carbon atoms are preferred. Specific examples include alkali metal salts such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, coconut oil fatty acid, and beef tallow fatty acid, ammonium salts, and amine salts. Among these, sodium laurate, potassium laurate, coconut oil fatty acid sodium, and coconut oil fatty acid potassium are particularly preferable. These fatty acid soaps can be used alone or in combination of two or more, and are blended in the cleaning liquid in an amount of 0.5 to 5% by weight, preferably 1 to 3% by weight. If it is less than 0.5% by weight, sufficient detergency and foam performance cannot be obtained, and if it exceeds 5% by weight, the foam scatters more and causes inconvenience.

The surfactant of component (B) may be any of anion, nonion, and amphoteric surfactant that are usually used in liquid detergents. Examples of the anionic surfactant include alkylbenzene sulfonate and linear alkylbenzene. Examples include sulfonate, alkyl sulfate, α-olefin sulfonate, alkyl phosphate ester salt, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, polyoxyethylene alkyl ether phosphate, and the like. Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, fatty acid alkanolamide, and amine oxide. Examples of the amphoteric surfactant include alkyl carboxybetaine type, alkyl Minokarubon acid type, and the like alkyl Your da ethylbenzthiazoline type. These surfactants can be used alone or in combination of two or more, and are blended in the cleaning liquid in an amount of 0.5 to 5% by weight, preferably 1 to 2% by weight. If it is less than 0.5% by weight or more than 5% by weight, the foaming property is deteriorated, which is disadvantageous.

Examples of the sequestering agent of component (C) include organic acids such as citric acid, malic acid and succinic acid and salts thereof, aminocarboxylic acids such as ethylenediaminetetraacetic acid, hydroxyethylenediaminetriacetic acid and nitriloacetic acid and salts thereof, Examples include polymer carboxylates such as sodium polyacrylate. Examples of the salt include alkali metal salts such as sodium and potassium, ammonium salts, and amine salts. Of these, sodium citrate is particularly preferable. These sequestering agents can be used alone or in combination of two or more, and are blended in the cleaning liquid in an amount of 0.5 to 6% by weight, preferably 2 to 4% by weight. If it is less than 0.5% by weight, sufficient detergency cannot be obtained. On the other hand, if it exceeds 6% by weight, the foamability is deteriorated, resulting in inconvenience.

Examples of the water-soluble solvent of component (D) include alcohols, polyhydric alcohols and derivatives thereof, specifically, ethanol, isopropyl alcohol, ethylene glycol, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether. , Diethylene glycol monobutyl ether, propylene glycol, propylene glycol monoethyl ether, propylene glycol monobutyl ether, dipropylene glycol monoethyl ether, dipropylene glycol monobutyl ether and the like. Of these, ethanol and isopropyl alcohol are particularly preferable. These water-soluble solvents can be used alone or in combination of two or more, and are blended in the cleaning liquid in an amount of 0.5 to 20% by weight, preferably 5 to 18% by weight. If it is less than 0.5% by weight, sufficient detergency and foam performance cannot be obtained, and if it exceeds 20% by weight, foam scattering increases, resulting in inconvenience.

The propellant used in the present invention is filled with 8 to 18% by volume of LPG having a pressure at 20 ° C. of 0.23 to 0.50 MPa, preferably 10 to 15% by volume of LPG having a pressure of 0.28 to 0.45 MPa. The If the pressure is less than 0.23 MPa or less than 8% by volume, problems such as poor foaming and after-drawing will occur, and if the pressure exceeds 0.50 MPa or more than 18% by volume, bubbles will fly out. Produce.
Further, the P value, which is the product of the pressure (MPa) of the LPG used and the filling amount (volume%), is adjusted to 4.0 or more. If the P value is less than 4.0, inconveniences such as an increased amount of after-drawing in the vicinity of the button nozzle will occur.

Moreover, you may mix | blend a pH adjuster, a disinfectant, an insect repellent, a fragrance | flavor, etc. with the foaming detergent composition for aerosol of this invention further suitably.

The injection button used in the present invention may be any button that forms bubbles, but the distance from the stem to the tip of the injection port is preferably 5 to 50 mm. If it exceeds 50 mm, inconveniences such as an increase in the number of afterdraws in which bubbles accumulate in the vicinity of the nozzle nozzle are caused.

The aerosol foaming detergent composition of the present invention will be described in more detail based on specific examples.

Examples and comparative examples having the compositions shown in Tables 1 to 3 were prepared and subjected to a detergency test and a foam performance test. At this time, the pressure of LPG was 0.44 MPa at 20 ° C., and the blending amount was constant at 10% by volume. The injection button used was a mini-axol SPC aqua hole diameter 0.64 mm manufactured by Precision Valve Co., Ltd., and the distance from the stem to the injection port was about 45 mm.

Next, the same cleaning liquid was used, and the test was performed by changing the pressure and the amount of LPG. That is,
Examples and comparative examples having the compositions shown in Table 4 were prepared, and the following detergency test and foam performance test were performed.
(1) Detergency test Spray the foaming detergent composition for aerosol of Examples and Comparative Examples on the screen surface of a screen door that has been left outdoors for a long time, leave it for 5 minutes, wash with water, and observe the cleaning state of the screen surface. And evaluated according to the following criteria.
○: Dirt was completely removed Δ: Dirt was partially left x: Dirt was hardly removed (2) Foam performance The foaming detergent compositions for aerosols of Examples and Comparative Examples were sprayed on the screen surface of the screen door. The foaming property, foam scattering and after-drawing were observed and evaluated according to the following criteria. Moreover, about the foam adhesion rate, the foaming detergent composition for aerosols of Examples and Comparative Examples was sprayed on the screen surface of a screen door (30 × 30 cm) capable of measuring the weight, and the adhesion rate was determined by the change in the weight of the mesh before and after spraying Asked.
<Foaming properties><Bubble scattering, after-draw>
○: Good foaming ○: Almost no Δ: Foamed but not enough Δ: A little ×: Little foamed ×: Many

As a result of the test, all of the foaming detergent compositions for aerosols of the present example were characterized by removing dirt without rubbing when cleaning the screen door, having good foaming properties, and little after-drawing.
On the other hand, as shown in the comparative example, when the component (A) is not blended (comparative example (1)), when the blending amount of the component (C) is less than a predetermined amount (comparative example (5)), the component ( When D) was not blended (Comparative Examples (7) and (9)), the detergency was insufficient. Moreover, when not mix | blending a component (A) (comparative example (1)), when not mix | blending a component (B) (comparative example (3)), when the compounding quantity of a component (B) exceeds predetermined amount (comparative example) (4), (9)), when the blending amount of component (C) exceeds a predetermined amount (Comparative Example (6)), when not blending component (D) (Comparative Examples (7), (9)), When the P value was less than 4.0 (Comparative Examples (10) and (11)), there were many afterdraws. When the blending amount of the component (A) exceeds a predetermined amount (Comparative Example (2)), when the blending amount of the component (C) exceeds a predetermined amount (Comparative Example (6)), the blending amount of the component (D) is When the amount exceeded a predetermined amount (Comparative Example (8)) or when LPG exceeding a predetermined pressure was used (Comparative Example (12)), the bubbles were scattered.
When component (A) is not blended (Comparative Examples (1) and (9)), when component (B) is not blended (Comparative Example (3)), and when the blending amount of component (B) exceeds a predetermined amount ( Comparative Examples (4) and (9)), when the amount of component (C) exceeds a predetermined amount (Comparative Example (6)), when component (D) is not blended (Comparative Examples (7) and (9) ), When LPG lower than a predetermined pressure was used (Comparative Example (10)), the foamability was poor, so there were many bubbles passing through the mesh surface, and the amount of foam adhering to the mesh surface was less than 70%.
When referring to the examples described in the foaming detergent composition for aerosol (JP-A-4-13800) (Comparative Example (9)), the cleaning power, foaming properties and after-drawing are not all satisfactory. There wasn't.
Therefore, the utility of the detergent composition of the present invention in which a specific amount of a specific component is blended is apparent in an aerosol foamable detergent composition in which evaluation of foam performance is important.

The foaming detergent composition for aerosols with reduced after-drawing of the present invention is an aerosol that sprays foam and adheres to the target surface in addition to screen doors, air conditioner filters, window glass, ventilation fans, toilets, bathtubs, and automobiles. May be available for product.

Claims (2)

(A) Fatty acid soap 0.5 to 5% by weight, (B) Surfactant 0.5 to 5% by weight, (C) Metal ion sequestering agent 0.5 to 6% by weight, (D) Water-soluble solvent 5 to 20% by weight, (E) 82 to 92% by volume of a cleaning solution containing ion-exchanged water in an aerosol container, and 8 to 18 volumes of LPG having a pressure at 20 ° C. of 0.23 to 0.50 MPa as a propellant A foaming detergent composition for aerosols that suppresses after-drawing, characterized in that it has a% filling and further has a P value of 4.0 or more.
P value = pressure of LPG at 20 ° C. (MPa) × filling amount of LPG (volume%) When used in the cleaning net surface net door, aerosol foaming detergent compositions with reduced after-draw of claim 1 ratio of adhering bubbles to the network surface is 70% or more.