WO2000042163A1

WO2000042163A1 - Detergent for spray

Info

Publication number: WO2000042163A1
Application number: PCT/JP1999/001536
Authority: WO
Inventors: Yoshiumi Hamada; Jiro Kakumoto
Original assignee: Nissin Medico Co., Ltd.
Priority date: 1999-01-13
Filing date: 1999-03-25
Publication date: 2000-07-20
Also published as: AU2957999A; JP2002226898A

Abstract

A water-based detergent for a spray, comprising a surfactant and a volatile alkaline component, wherein the detergent is made alkaline by the volatile alkaline component and become neutral through vaporization of the volatile alkaline. The use of such a detergent results in the advantage that not only, immediately after spraying, the detergent has higher detergency than that of a conventional neutral detergent due to its being alkaline, but also, after the elapse of a relatively short time from spraying, the detergent sprayed become neutral through vaporization of the volatile alkaline contained therein, so that, when the detergent is sprayed onto metal fins of an air conditioner or the like, an operation of washing with water after spraying is not required due to little danger of corrosion.

Description

Spray cleaning agent Technical field

The present invention relates to an improvement in a cleaning agent for spraying which is used by being sprayed on metal fins and cutting blades of an electric shaving machine in an air conditioner such as an air conditioner. Background art

2. Description of the Related Art Conventionally, there has been known a spray cleaner used by spraying onto metal fins or the like in air conditioners such as air conditioners. If the cleaning agent used in such an air conditioner is alkaline, spray the cleaning agent on the metal fins, as the cleaning agent attached to the metal fins will later corrode and damage the metal fins over time. After that, water purification work is required. Therefore, conventional cleaning agents are manufactured to be neutral.

However, if the detergent is neutral, the cleaning work with water can be eliminated without damaging the metal fins. There is a problem that dirt is difficult to remove instantly.

The present invention has been proposed in view of the above circumstances. Immediately after spraying, it has a sufficient detergency, and after spraying, there is very little risk of metal corrosion such as metal fins. Provide a spray cleaner that does not require any work. Disclosure of the invention The present invention relates to a water-based spray detergent, wherein the detergent contains a surfactant and a volatile alkaline component, and contains the volatile alkaline component. Is a spray cleaner which is alkaline and becomes neutral due to volatilization of the alkaline component. BEST MODE FOR CARRYING OUT THE INVENTION

The cleaning agent of the present invention is a water-based cleaning agent for spraying. The detergent contains a surfactant and a volatile alkaline component, and contains the volatile alkaline component, so that the detergent becomes alkaline and volatilizes the alkaline component. Is neutral. In other words, the cleaning agent of the present invention includes an alkaline component having volatility, thereby making the cleaning agent alkaline and evaporating the alkaline component when used.

Specifically, the cleaning agent of the present invention is water-based, contains a surfactant, an oil, a lower alcohol, and a liquefied gas for aerosol, and is a spray sealed in a container with a jet nozzle. It is a formula cleaner. The surfactant concentration in the spray-type cleaning agent is 2% by weight or less, and the cleaning agent is unstable in emulsification and generates foam that is not persistent when sprayed. .

Further, in the cleaning agent of the present invention, the above alkaline component is included in the cleaning agent in a neutral state, so that the cleaning agent is neutralized with volatilization of the alkaline component. Is done. Further, the detergent contains a PH indicator, which allows the color of the detergent to change as the detergent changes from alkaline to neutral. The term “neutral J” as used in the present invention refers to an alkaline detergent colored with a PH indicator. Means the state in which the color changes.

Examples of the volatile alcohol component used in the present invention include ammonia water, morpholine, amino alcohol, and fatty acid amine. These are included in a neutral detergent based on water, so that the pH of the detergent can be increased to 8 or more, and the detergent can be made alkaline. In addition, these substances have good volatility, and when used by spraying in a neutral detergent, volatilize from the detergent in a short time, and the detergent after volatilization becomes neutral. Become. In addition, the amount of these components is such that when the cleaning agent is included in the cleaning agent and sprayed onto the object to be cleaned, the cleaning agent remains in the cleaning agent for a period of time during which the object to be cleaned can be washed, and the cleaning agent can be maintained alkaline. In addition, the cleaning agent can be volatilized from the cleaning agent within the time until the sprayed cleaning agent causes metal corrosion. More specifically, the amount of the alkaline component is preferably in the range of about 0.01 to 10% by weight of the entire cleaning agent, and when the amount is less than 0.01% by weight, it is included in the cleaning agent and sprayed. Then, by about 5 seconds, the cleaning agent volatilizes from the cleaning agent and becomes neutral, which makes it difficult to sufficiently clean the cleaning agent and to exert the cleaning effect. on the other hand,

If it exceeds 10% by weight, if it is included in the cleaning agent and sprayed, it will not finish volatilizing from the cleaning agent until approximately 5 minutes or more have passed, causing the sprayed object to corrode metal and form a support. There is a risk of damage.

Further, the cleaning agent of the present invention, but it may also be added to p H indicator as described above ₀

The PH indicator used in the cleaning agent of the present invention is for visually determining whether or not the cleaning agent has an alkaline property. By adding this pH indicator together with the above-mentioned alkaline component to a neutral detergent, the detergent that has been rendered alkaline by the alkaline component is brought into a state of exhibiting a unique color, The color of the cleaning agent after the neutral component volatilizes and becomes neutral can be changed, and the neutral can be determined at a glance. As the PH indicator, those generally used widely as alkaline indicators can be used, and examples thereof include phenol phthalate, thymol blue, phenol red, cresol red, tropeolin, and thymol phthalein. Can be mentioned. For example, when phenolphthalein is used, the color of the detergent becomes reddish purple when the detergent is alkaline, but the color changes to colorless when the detergent becomes neutral. When thymol blue is used, when the detergent is alkaline, it exhibits a blue color, but when it becomes neutral, it changes to yellow. By placing such a PH indicator in the cleaning agent, the alkaline component in the cleaning agent volatilizes when the cleaning agent is used, and the cleaning agent becomes neutral. Not only can users see at a glance that they have become unsafe, but they can also give users a sense of security and increase their product value. The PH indicator may be included as needed, and may be used even if it is not included.

The detergent containing the alcohol component and the PH indicator can be used as long as it is neutral based on water.For example, a detergent containing a surfactant, linemon, alcohol, etc. may be used. . The detergent containing the alkaline component and the PH indicator may be composed of only water, or may be composed of only water and include the alkaline component or the PH indicator together with the alkaline component. It can be made to have detergency by the strong power component.

The cleaning agent of the present invention containing an alkaline component is preferably enclosed in an aerosol container together with a propellant gas and used as an aerosol. Specifically, for example, when a cleaning agent is sprayed alone without being used together with a propellant gas, the alcoholic components in the sprayed cleaning agent volatilize, but the sprayed cleaning agent is not used. When the particles are relatively large, it is difficult to volatilize the volatile components inside the particles, and it takes time to volatilize. However, if the cleaning agent is sealed in the aerosol container together with the propellant gas, and the cleaning agent is propelled together with the propellant gas during use, the propellant gas mixed in the cleaning agent volatilizes, resulting in a reduction in the power of the cleaning agent. The volatile components are volatilized with the volatilization of the gas for injection, so that the volatile components can be easily volatilized. Therefore, even when the cleaning agent becomes relatively large particles, the mixed components can be efficiently volatilized when the mixed injection gas is volatilized, and can be volatilized in a short time. In addition, liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen gas, carbon dioxide gas, chlorofluorocarbon 134a, etc., or a mixture thereof can be used as the injection gas.

Further, the cleaning agent of the present invention combines a cleaning action by a surfactant, alkalinity, and the like, a physical cleaning action by a spraying force of a spray, and a cleaning action by a non-persistent foaming action, so that the surfactant can be used. Even at low concentrations, it is a detergent with sufficient detergency. In the detergent of the present invention, there is no foam remaining after application, and there is no need for a washing operation.

The cleaning agent of the present invention is effective for cleaning metal, wood, and plastic surfaces, and is particularly effective for metal surfaces. Furthermore, it is effective for cleaning metal products or metal components that have narrow gaps and are difficult to disassemble. Specifically, cutting of aluminum fins (aluminum heat exchangers) for vacant facilities (especially household air conditioners), cutting blades for electric shaving machines (fin-shaped cutting blades), punches, dies, taps, etc. It is effective for tools, scissors, clippers and other hand tools, brass instruments, watches, and guns.

In addition, the detergent of the present invention preferably contains oil and is unstable in emulsification. Further, it is preferable that the detergent produce foam that is not persistent when sprayed. The surfactant concentration is less than 2% by weight. In other words, non-persistent foaming can be said to be foaming in which the time until foam break is extremely short. For this reason, even if foaming is temporary, Does not persist and is defoamed, so no foam remains. The concentration of the surfactant in the detergent is preferably 0.5 to 1.5% by weight, and the concentration of the surfactant in the detergent component excluding the liquefied gas for aerosol is 0.5 to 3% by weight. %, Preferably 0.7 to 2% by weight.

Further, the surfactant is preferably a nonionic surfactant. Any nonionic surfactant may be used, but polyoxyethylene alkyl phenyl ethers having an alkyl group such as octyl, nonyl, dodecyl, etc., octyl, lauryl, cetyl, stearyl, or oleyl. Polyalkylene alkyl ethers having an alkyl group such as styrene, polyethylene glycol oleic acid monoester, stearic acid monoester, stearic acid diester, lauric acid monoester, and other polyethylene glycol fatty acid esters, lauryl, stearyl Polyoxyethylene alkylamines having an alkyl group such as oleyl, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbita Polyoxyethylene sorbitan such as monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, and fatty acid fatty acid polyoxyethylene sorbitan Fatty acid esters such as fatty acid esters, polyethylene glycol ethers, lauric acid diethanolamide, sucrose fatty acid esters, lauric acid monoglyceride, stearic acid monoglyceride, oleic acid monoglyceride, etc. Fatty acid monoglycerides, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan distearate Ether, sorbitan tristearate, Sorubitanmo Sorbitan fatty acid esters such as oleic acid sorbate and sorbitan trioleate, polyoxyethylene lauric acid amide, polyoxyethylene stearic acid amide, and polyoxyethylene oleic acid amide Polyoxyethylene fatty acid amides, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, and the like can be used.

In particular, polyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene castor oil are preferred, and a mixture thereof is particularly preferred. In particular, polyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl ethers, or a mixture of polyoxyethylene castor oil and polyoxyethylene sorbitan fatty acid esters are preferred. Specifically, a combination of polyoxyethylene nonylphenyl ester and coconut oil fatty acid polyoxyethylene sorbitan, a combination of polyoxyethylene castor oil and polyoxyethylene sorbitan monolaurate, a polyoxyethylene nonylphenyl Combinations of ether and polyoxyethylene sorbitan monolaurate are preferred. As the oil component, limonene or a hydrocarbon oil is preferable. The concentration of limonene in the detergent component is 1 to 3% by weight, preferably 1 to 2% by weight. The concentration of limonene in the detergent component excluding the liquefied gas for aerosol is 1 to 3% by weight, preferably 1 to 2.5% by weight. As limonene, any of orange oil (D-limonene), dipentene and the like can be used, but liorogene oil is preferable because it has an aroma for orange peel.

Also, as the hydrogen hydride oil, isoparaffin-based hydride oil is preferable. The concentration of the J-hydrogen oil in the detergent component is 3 to 8% by weight, preferably 4 to 7% by weight, and the cleaning composition excluding the liquefied gas for aerosol. The concentration of hydrogen peroxide oil in the mixture is 4 to 10% by weight, preferably 5 to 8% by weight. Hydrogen fluoride oil is used at room temperature. Usually, those having about 7 to 15 carbon atoms are used. Isoparaffinic S-hydrogen oil is a hydrogen peroxide oil produced by polymerizing monoolefin gas having 3 to 5 carbon atoms and hydrogenating unsaturated bonds.

Limonene and isoparaffinic hydrocarbon oils are so-called oil components, and have an action of adhering to metal surfaces to float dirt and an action of defoaming bubbles caused by a surfactant. In addition, both (particularly isoparaffinic hydrocarbon oils) exert a protective effect on the metal surface after cleaning.

Further, lower alcohols may be added to the cleaning agent. As lower alcohols, methyl alcohol, ethyl alcohol, ethylene glycol, and cellosolve solvents are used. In particular, a mixture of ethyl alcohol and ethylene glycol or a mixture of ethyl alcohol and cellosolve is preferred. Ethylene glycol and cellosolve have the effect of increasing the viscosity of the detergent composition to increase the detergency, and the effect of improving the dispersibility of the detergent composition and the liquefied gas for aerosol. In particular, cellosolve is effective. As cellosolve, ethylene glycol monobutyl ether, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, and the like can be used, and ethylene glycol monobutyl ether is particularly preferable. Thus, the most preferred lower alcohols are mixtures of ethylene glycol and ethylene glycol monobutyl ether. Ethyl alcohol improves the affinity between the oil component limonene, the isoparaffinic hydrogen peroxide oil, and the surfactant.

The pH of the detergent composition containing the volatile alkaline moiety is preferably from 8 to 13, and more preferably from 9 to 12. The pH of the cleaning agent excluding the volatile alkaline portion is 6 to 8, preferably 6.5 to 7.5. You.

The detergent composition excluding the liquefied gas for aerosol is adjusted by adding a predetermined amount to each of the water to the above-mentioned concentrations. Specifically, with respect to 100 parts by weight of water, 0.5 to 3 parts by weight (preferably, 1 to 2 parts by weight) of a nonionic surfactant, and 0.01 to 3 parts by weight of an alkaline substance. Parts (preferably 0.05 to 0.5 parts by weight), lower alcohols 5 to 30 parts by weight

(Preferably, 10 to 25 parts by weight, specifically, 5 to 30 parts by weight of ethyl alcohol). Further, if necessary, 1 to 4 parts by weight (preferably 1.5 to 3 parts by weight) of limonene, 2 to 15 parts by weight of isoparaffinic hydrocarbon oil (preferably 5 to 12 parts by weight) Part), add an appropriate amount of pH indicator and mix.

Further, if necessary, a pH adjuster may be added to the detergent composition. Alkali metal compounds such as sodium and potassium, alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and alkaline substances such as aqueous ammonia are used as pH adjusters. You.

As the cleaning agent container of the present invention, a conventional aerosol container such as a tin can or an aluminum can is used, and a container having a capacity of about 30 OmI is preferable.

Then, the detergent composition except for the liquefied gas for aerosol prepared as described above is filled in a container, and a button for aerosol is attached to an opening of the container and sealed. Then, the liquefied gas for nozzle aerosol of the button is injected into the container filled with the cleaning composition.

As liquefied gas for aerosol, liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen gas, sulfuric acid gas, chlorofluorocarbon 134a or a mixture thereof can be used. As a mixture, a mixture of LPG and DME, A mixture of LPG and carbon dioxide can be used. As the liquefied petroleum gas, liquefied propane gas, liquefied butane gas, liquefied pentane gas and the like are used. In particular, a mixture of liquefied propane gas and liquefied butane gas is preferable because a high internal pressure can be formed. The liquefied gas for aerosol is added so that the amount of the detergent containing the liquefied gas for aerosol is 10 to 40% by weight, preferably 20 to 35% by weight, and the water temperature is 35 ° C. of the internal pressure in the container in HitaKiyoshi the state the bath is, 6 kg Roh cm ² or more ^{(6~ 8 kg / cm 2)} , preferably, 6. 5 kg / cm ² or more (6. 5~ 8 kgcm ² ).

An injection nozzle is attached to the nozzle of the button of the container into which the liquefied gas for aerosol has been injected as described above. An injection nozzle having a low-diffusion nozzle tip is used. The low-diffusion nozzle tip is provided with an injection channel that extends to the tip with almost the same inner diameter (in other words, hardly increases in diameter toward the tip). Specifically, "Quick sprayer" manufactured by the Precision Valve Co., Ltd. can be suitably used. By using a nozzle having such a low-diffusion nozzle tip, the spraying power of the cleaning agent can be concentrated, and the cleaning action by the spraying power becomes higher.

The principle of the cleaning action of the cleaning agent of the present invention is considered as follows. Since the detergent of the present invention has a low surfactant content, it does not become emulsifiable even if it contains an oil component, and can be temporarily and to some extent dispersed by stirring. The so-called emulsification is unstable. Therefore, the cleaning agent sprayed from the spray nozzle separates in the air before adhering to the object to be cleaned, the surfactant is in a foam state, and the oil adheres to the object without foaming . The oil reaches the oil earlier than the air resistance, and forms an oil film on the surface of the object to be cleaned. To reach it, the dirt is physically pushed to some extent by the force of the collision. The foam that arrives at the point where the oil has adhered to the surface and the contact angle is high cannot be kneaded, and almost all bubbles disappear in a few seconds to several tens of seconds. Due to the vibration generated when the bubbles disappear, dirt on the surface to be cleaned is easily peeled off. The oil-soluble dirt on the surface of the object to be cleaned, which has become easy to peel off due to the vibration when the bubbles disappear, is re-swelled by the oil adhering to the surface and floats up. The surface of the object to be cleaned is cleaned by being blown off by the sprayed cleaning agent. Therefore, the surface of the object to be cleaned can be cleaned by spraying the cleaning agent of the present invention for a certain period of time. As described above, since the bubbles disappear in about several tens of seconds, there is no need to wash away the bubbles, and since the concentration of the surfactant is sufficiently low, washing with water is unnecessary.

(Example 1)

1% by weight of a surfactant (0.9% by weight of polyoxyethylene nonylphenyl ether, 0.1% by weight of polyoxyethylene sorbitan monolaurate), 1% by weight of limonene, 20% by weight of ethanol, and water A water-based neutral detergent with a pH of 6.5 was manufactured, and this was used as an alkaline component. Aqueous ammonia 0.1% S% was added. The pH of the detergent after adding 28% ammonia water was 10.3. Further, a few drops of phenolphthalein as a PH indicator were added thereto to obtain a red-purple cleaning agent of the present invention. Then, the obtained cleaning agent was filled into an aerosol container equipped with a low-diffusion nozzle tip together with liquefied petroleum gas as a propellant gas to form an aerosol. When this cleaning agent was sprayed onto the metal fins of the air conditioning equipment, it initially turned red-purple, but after 5 to 10 seconds it became colorless and the cleaning agent became neutral. At a glance, I understood. (Example 2)

Includes 1% by weight of surfactant (0.9% by weight of polyoxyethylene nonylphenyl ether, 0.1% by weight of polyoxyethylene sorbitan monolaurate), 1% by weight of limonene and 20% by weight of ethanol Then, 1% by weight of morpholine as an alkaline component was added to a neutral detergent having a pH of 6.5 based on water. The pH of the detergent after the addition of morpholine was 10.5. Further, several drops of thymol blue as a pH indicator were added thereto, and a blue-colored cleaning agent of the present invention was obtained. Thereafter, the obtained cleaning agent was filled into an aerosol container equipped with a low-diffusion nozzle tip together with liquefied petroleum gas as a jetting gas to obtain an aerosol. When this cleaning agent was sprayed on the metal fins of the air conditioner, it initially turned blue, but turned yellow 30 to 40 seconds later, and the cleaning agent became neutral. At a glance, I understood.

Next, a comparative test regarding cleaning between a neutral cleaning agent containing no alkaline component and the cleaning agent containing an alkaline component of the present invention was performed, and will be described below.

In this comparative test, a water-based PH 6.5 containing 1% by weight of a surfactant, 1% by weight of limonene, 20% by weight of ethanol, and water as neutral detergents was used. The cleaning agent of the present invention was prepared by using a neutral cleaning agent having a pH of 6.5 based on the water and adding 0.1% by weight of 28% ammonia water. These were filled into an aerosol container, half of each was sprayed on the metal fins of a dirty air conditioner, and the color of the liquid flowing out was visually compared to observe the stain removal. As a result, the cleaning agent containing no alkaline component turned into a light brown liquid, whereas the cleaning agent of the present invention turned into a dark brown liquid. As described above, the alkaline cleaning agent containing an alkaline component of the present invention is more effective in neutral cleaning containing no alkaline component. It was confirmed that the detergency was high compared to the comparative example.

(Example 3)

Surfactant 0.5% by weight (polyoxyethylene castor oil 0.45% by weight; polyoxyethylene sorbitan monolaurate 0.05 part by weight) and isoparaffinic hydrocarbon oil (manufactured by Idemitsu Petrochemical Co., Ltd.) , IP 1620) 1% by weight, 20% by weight of ethanol, 0.1% by weight of sodium nitrite and water with a water-based neutral detergent PH 6.5 It was manufactured, and 0.1% by weight of 28% ammonia water as an alkaline component was added thereto. The pH of the cleaning agent after adding 28% aqueous ammonia was 10.3. Furthermore, 0.003 parts by weight of phenolphthalein as a pH indicator was added thereto to obtain a red-purple cleaning agent of the present invention. After that, the obtained cleaning agent was charged into an aerosol container equipped with a low-diffusion nozzle tip together with liquefied petroleum gas as a jetting gas to obtain an aerosol. When this cleaning agent was sprayed onto the metal fins of the air conditioning equipment, it initially turned red-purple, but became colorless after 5 to 10 seconds, and the cleaning agent became neutral. I saw it.

(Example 4)

0.5% by weight of a surfactant (0.4% by weight of polyoxyethylene nonylphenyl ether, 0.05% by weight of polyoxyethylene sorbitan monolaurate) and an isoparaffin hydrocarbon oil (Idemitsu Petrochemical Co., Ltd.) IP 1620) 1% by weight, ethanol 20% by weight, sodium nitrite 0.1% S%, and water-based neutralized PH 6.5 A cleaning agent was prepared, and 0.1% by weight of 28% ammonia water as an alkaline component was added thereto. The pH of the cleaning agent after adding 28% aqueous ammonia was 10.3. Further, 0.03 parts by weight of phenolphthalein as a PH indicator was added thereto to obtain a cleaning agent of the present invention exhibiting a reddish purple color. Then, the obtained cleaning agent was filled into an aerosol container equipped with a low-diffusion nozzle tip together with liquefied petroleum gas as a propellant gas to obtain an aerosol. When this detergent was sprayed onto the metal fins of the air conditioner, it initially turned red-purple, but became colorless after 5 to 10 seconds, indicating that the detergent became neutral. At a glance I understood.

(Example 5)

0.5% by weight of surfactant (0.45% by weight of polyoxyethylene castor oil, 0.05% by weight of polyoxyethylene sorbitan monolaurate) and an isoparaffinic hydrogen peroxide oil (manufactured by Idemitsu Petrochemical Co., Ltd.) , IP 1620) "Water-based neutralization of PH 6.5 with 1% by weight, 20% by weight of ethanol, 0.1% by weight of sodium oxalate and water A cleaning agent was prepared, and 0.1% by weight of 28% aqueous ammonia as an alkaline component was added thereto.The pH of the cleaning agent after adding 28% aqueous ammonia was 10.3. Further, a few drops of thymol blue as a PH indicator were added thereto to obtain a cleaning agent of the present invention exhibiting a blue color, and the obtained cleaning agent was mixed with liquefied petroleum gas as a gas for injection. , And filled into an aerosol container equipped with a low-diffusion nozzle tip to form an aerosol. When this cleaning agent was sprayed onto the metal fins of the air conditioner, it initially turned blue, but after 30 to 40 seconds it turned yellow, indicating that the cleaning agent became neutral. Te na: ₀

(Example 6)

0.5% by weight of surfactant (0.4% by weight of polyoxyethylene nonylphenyl ether, 0.05% by weight of polyoxyethylene sorbitan monolaurate) and isoparaffinic hydrocarbon oil (Idemitsu Petrochemical IP 1620) 1% by weight, 20% by weight of ethanol, 0.1% by weight of sodium nitrite and water, neutral cleaning of PH 6.5 based on water An agent was prepared, and 0.1% by weight of 28% aqueous ammonia as an alkaline component was added thereto. The pH of the cleaning agent after adding 28% aqueous ammonia was 10.3. Further, a few drops of thymol blue as a PH indicator were added thereto to obtain a blue-colored cleaning agent of the present invention. Then, the obtained detergent together with liquefied petroleum gas as a jetting gas was filled into an aerosol container equipped with a low-diffusion nozzle tip to form an aerosol. When this cleaning agent was sprayed onto the metal fins of the air conditioner, it initially turned blue, but turned yellow after 30 to 40 seconds, indicating that the cleaning agent became neutral. At a glance I understood.

(Experiment)

With respect to the cleaning agents of Examples 1 to 6, each cleaning agent was spray-coated on aluminum fins of one household air conditioner that had not been cleaned for one year or more, and properties were observed. When the cleaning agents of Examples 1, 2, 3, and 4 were applied, foaming occurred at the time of application, but the foam immediately disappeared, and no foam was present after about 20 seconds. ₀ Industrial applicability

Since the detergent of the present invention is alkaline immediately after spraying, it has a higher detergency than conventional neutral detergents and can instantly remove dirt. On the other hand, after spraying, the alkaline components contained in the cleaning agent can be volatilized. This reduces the danger of metal corrosion even when sprayed on metal fins of air conditioning equipment, and eliminates the need for washing after spraying.

Furthermore, the concentration of the surfactant in the detergent is set to 2% by weight or less, and the detergent contains oil and is emulsified unstable, and furthermore, when spray-applied, foaming without kneading property is generated. You may. To do this Therefore, since the detergent has a low-grade surfactant and contains an oil, there is no residual foam after application and there is no need for a washing operation. Furthermore, even when the concentration of the surfactant is low, the cleaning action by the surfactant, oil, etc., the physical cleaning action by the spraying force of the spray, and the non-sustainable foaming action, especially by the vibration when the foam disappears, It has a sufficient cleaning power because it has a composite cleaning function consisting of a cleaning function.

Claims

The scope of the claims

1. A water-based spray detergent, which contains a surfactant and a volatile alkaline component, and is cleaned by containing the volatile alkaline component. A cleaning agent for sprays, wherein the cleaning agent is alkaline and becomes neutral by volatilization of the alkalinity component.

2. The spray cleaning agent according to claim 1, wherein the cleaning agent contains a PH indicator, and the color of the cleaning agent changes from alkaline to neutral depending on the PH indicator.

3. The concentration of the surfactant in the detergent is 2% by weight or less, and the detergent contains oil and is emulsified unstable, and further has no sustainability when applied by spraying. 3. The spray cleaner according to claim 1 or 2, which foams.

4. The spray cleaner according to any one of claims 1 to 3, wherein the cleaner is enclosed in an aerosol container with a spray nozzle together with a spray gas.

5. The spray-type cleaning agent according to claim 4, wherein the injection nozzle includes a low-diffusion nozzle tip.

6. The spray cleaner according to claim 5, wherein the oil is limonene or hydride oil.

7. The spray cleaner according to any one of claims 1 to 6, wherein the surfactant is a nonionic surfactant.

8. The nonionic surfactant is at least one selected from polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene castor oil, and polyoxyethylene sorbitan fatty acid ester. Item 7. A spray cleaning agent according to Item 7.

9. The spray cleaner according to any one of claims 1 to 8, wherein the cleaner contains a lower alcohol.

10. The spray-type cleaning agent according to claim 8, wherein the lower alcohol is any one of ethyl alcohol, ethylene glycol, and a cellosolve-based solvent.

11. The spray cleaner according to any one of claims 1 to 9, wherein the cleaner is a metal surface cleaner.

12. The spray cleaner according to any one of claims 1 to 10, wherein the cleaner is a cleaner for aluminum fins of an air conditioner.

13. The spray cleaner according to any one of claims 1 to 10, wherein the cleaner is a cleaner for cutting blades of an electric shaving machine.

Corrected form (Rule 91)