JP2006008801A - Detergent composition for hard surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent composition for hard surfaces, excellent in nature of being rinsed away, not to mention detergency for oil stains and storage stability of the composition, and suitable for washing hard surfaces, especially suitable for washing a floor in a backyard of a supermarket, kitchen, restaurant, dining room, food processing factory and the like. <P>SOLUTION: The detergent composition for hard surfaces contains (A) 0.1-30 mass% of a nonionic surfactant, (B) 0.001-10 mass% of a terpene type hydrocarbon solvent, (C) 0.1-30 mass% of a water-soluble solvent, (D) 0.1-20 mass% of an alkali agent, (E) 0.1-20 mass% of a chelating agent and (F) water, or further contains (G) a cationic surfactant. The pH of the undiluted solution (JIS-Z-8802:1984 "pH measurement method") is set to be 12 or higher at 25°C. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hard surface cleaning composition having excellent detergency and storage stability as well as rinsing properties. More specifically, it has excellent cleaning power for oil stains and storage stability of the composition at low to high temperatures, as well as excellent rinsing properties, especially for cleaning hard surfaces, especially in supermarket backyards, kitchens, restaurants, and cafeterias. The present invention relates to a hard surface cleaning composition that is suitably used for cleaning floors of food processing plants and the like.

  In general, in supermarket backyards, kitchens, restaurants, canteens, food processing factories, etc., not only the kitchen table and cooking equipment, but also the floor scatters oil when it is cooked and spreads it. Is easy to deposit. In this state, not only is it unsanitary, but there is a risk of slipping or falling, so it is necessary to frequently clean the floor surface. As a cleaning agent for this purpose, those mainly containing an alkali agent or a surfactant are conventionally used. In addition, in recent years, detergents using terpene hydrocarbon solvents such as orange oil and limonene have been proposed.

As such a detergent, for example, a detergent composition containing a specific terpene hydrocarbon solvent, a hydrophilic surfactant and a hydrophilic organic solvent has excellent fragrance and does not adversely affect the skin and the environment. Have been proposed as having excellent detergency (see Patent Document 1).
In addition, liquid detergent compositions containing specific glyceryl ethers, terpene hydrocarbons, surfactants, builders or alkaline agents and water have excellent detergency against oil stains and soap scum stains, and damage to the substrate. It is low and has been proposed as being suitable for use around kitchens and bathrooms (see Patent Document 2).
However, these cleaning agents have insufficient cleaning power against oil stains firmly adhered on a hard surface by heating or long-time adhesion, and further improvement in cleaning power is required. In addition, since the foaming is large, the floor surface or the like is inferior in rinsing properties, and there is a disadvantage that a large amount of rinsing water and time are required for the rinsing operation, and there is still room for improvement.

JP 7-292390 A JP-A-11-256200

  The present invention has been made in view of such circumstances, and is excellent in rinsing properties, particularly in cleaning hard surfaces, in addition to being excellent in oil stain detergency and storage stability of the composition at low to high temperatures. An object of the present invention is to provide a hard surface cleaning composition that is suitably used for cleaning floors of supermarket backyards, kitchens, restaurants, restaurants, food processing plants, and the like.

As a result of diligent studies, the present inventors have found a hard surface cleaning composition that achieves the above object, and completed the present invention.
That is, the present invention includes (A) nonionic surfactant 0.1 to 30% by mass, (B) terpene hydrocarbon solvent 0.001 to 10% by mass, and (C) water-soluble solvent 0.1 to 30% by mass. (D) Alkaline agent 0.1-20 mass%, (E) Chelating agent 0.1-20 mass%, and (F) pH in an undiluted | stock solution (JIS-Z-8802: 1984 " The first gist is a detergent composition for hard surfaces, characterized in that the pH measurement method ") is set to 12 or more at 25 ° C.

  Furthermore, the above-mentioned hard surface cleaning composition, which contains (G) 0.1-30% by mass of a cationic surfactant, is a second gist.

  Further, the hard surface cleaning composition in which the nonionic surfactant of the component (A) is a polyoxyalkylene alkyl ether and / or a polyoxyalkylene alkenyl ether is a third gist, and the component (B) A fourth aspect of the present invention is the hard surface cleaning composition, wherein the terpene hydrocarbon solvent is a monoterpene hydrocarbon and / or a sesquiterpene hydrocarbon.

  The water-soluble solvent of the component (C) is at least one selected from a glycol solvent, an alcohol, and a pyrrolidone compound. The hard surface cleaning composition is a fifth gist, and the component (D) A sixth aspect of the present invention is the hard surface cleaning composition, wherein the alkaline agent is an inorganic alkaline substance. The hard surface cleaning composition, wherein the chelating agent of the component (E) is at least one selected from hydroxycarboxylic acids and / or salts thereof, aminocarboxylic acids and / or salts thereof and polymer chelating agents. It is the summary of 7.

  Furthermore, let the said detergent composition for hard surfaces which is a floor use be an 8th summary.

  The hard surface cleaning composition of the present invention comprises a nonionic surfactant (component A), a terpene hydrocarbon solvent (component B), a water-soluble solvent (component C), an alkali agent (component D), a chelating agent (E Component) and water (F component), or further contains a cationic surfactant (G component), and the pH in the stock solution (JIS-Z-8802: 1984 “pH measurement method”) is 12 at 25 ° C. By being set to be alkaline as described above, not only is it excellent in detergency against oil stains firmly attached to the hard surface by heating or adhesion for a long time and storage stability of the composition at low to high temperatures, Exhibits excellent rinsing performance. Therefore, the cleaning composition for hard surfaces of the present invention can be suitably used for cleaning hard surfaces, particularly floors of supermarkets such as backyards, kitchens, restaurants, canteens, and food processing factories.

  Hereinafter, the best mode for carrying out the present invention will be described in detail.

  The hard surface cleaning composition of the present invention has (A) a nonionic surfactant, (B) a terpene hydrocarbon solvent, (C) a water-soluble solvent, (D) an alkali agent, (E) as its main component. It contains a chelating agent and (F) water, or further contains (G) a cationic surfactant.

  Examples of the nonionic surfactant that is the component (A) include polyoxyalkylene alkyl ether and / or polyoxyalkylene alkenyl ether. These are blended for the purpose of washing the article to be washed, and may be used alone or in combination of two or more.

  Among these, those represented by the following general formula (1) are preferably used from the viewpoints of low foaming properties, detergency, in particular, permeability to oil stains and emulsification properties of oil stains.

(Chemical formula 1)
R ^1- (A ₀ ) _m -R ² (1)
[R ¹ represents a linear or branched alkyl group, alkenyl group, alkylphenyl group or alkenylphenyl group, and R ² represents any one of hydrogen, a methyl group or an ethyl group. A ₀ is alkylene oxide, and specific examples include ethylene oxide, propylene oxide, and butylene oxide. M represents the number of added moles of alkylene oxide. ]

  Specific examples of the compound represented by the general formula (1) include polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkylphenyl ether, and polyoxypropylene alkyl. Polyoxyalkylene alkyl ethers such as phenyl ether, polyoxyethylene polyoxypropylene alkyl phenyl ether, polyoxyethylene alkenyl ether, polyoxypropylene alkenyl ether, polyoxyethylene polyoxypropylene alkenyl ether, polyoxyethylene alkenyl phenyl ether, polyoxy Propylene alkenyl phenyl ether, polyoxyethylene polyoxypropylene alkenyl phenyl ether Polyoxyalkylene alkenyl ether such as Le like.

Among these, polyoxyalkylene alkyl ether is preferably used from the viewpoint of detergency against oil stains and permeability. The carbon number of R ¹ is preferably in the range of 6 to 24 from the viewpoint of detergency, and m is preferably 2 to 15 from the viewpoint of detergency. And from the point of detergency and economical efficiency, for example, ethylene oxide (2-15 mol) adduct of higher alcohol having 9 to 16 carbon atoms, ethylene oxide (2-15 mol) of higher alcohol having 9 to 16 carbon atoms. A propylene oxide (2 to 15 mol) adduct is preferably used.

  Moreover, the compounding quantity of the nonionic surfactant which is the said (A) component is 0.1-30 mass with respect to the whole cleaning composition for hard surfaces of this invention (henceforth abbreviated as this composition). % (Hereinafter abbreviated as%). That is, when the blending amount is less than 0.1%, the detergency, in particular the permeability to oil stains and the emulsification properties of oil stains are poor, and the storage stability of the composition is also poor, while 30% is reduced. This is because if it exceeds, the storage stability of the composition will be poor and the rinsing properties will be poor. In particular, setting in the range of 1 to 15% is preferable from the viewpoints of detergency against oil stains, rinsing properties and economy.

Examples of the terpene hydrocarbon solvent as the component (B) include monoterpene hydrocarbons and / or sesquiterpene hydrocarbons.
Monoterpene hydrocarbons include those having two isoprene skeletons (C ₅ H ₈ ), and more specifically, D-limonene, L-limonene, α-pinene, β-pinene, camphene, myrcene. , Α-terpinene, γ-terpinene, ρ-cymene, δ-3-carene, sabinene and the like. Examples of the sesquiterpene hydrocarbon include those having three isoprene skeletons (C ₅ H ₈ ), and more specifically, camazulene, caryophyllene, bisabolen, aslene, cedrene, and farnesene.
These terpene hydrocarbon solvents are blended for the purpose of improving detergency and may be used alone or in combination of two or more.

  Among the above components (B), monoterpene hydrocarbons are preferably used from the viewpoint of the effect of improving detergency. Among them, D-limonene and D-limonene are preferable from the viewpoint of permeability to oil dirt and solubility of dirt. L / Limonene is preferably used.

  Moreover, the compounding quantity of the terpene hydrocarbon solvent which is the said (B) component is set in the range of 0.001 to 10% with respect to the whole this composition. That is, when the blending amount is less than 0.001%, the effect of improving the detergency, particularly the permeability to oil stains and the solubility of stains, is poor. On the other hand, when it exceeds 10%, the storage stability of the composition is poor. Because it becomes. In particular, it is preferable to set the content in the range of 0.01 to 5% from the viewpoints of the permeability to oil stains and the solubility of the stains, and further set in the range of 0.01 to 2%. Is more preferable from the viewpoint of the storage stability of the present composition.

  Examples of the water-soluble solvent as the component (C) include glycol ether solvents, alcohols, and pyrrolidone compounds, and each may be used alone or in combination of two or more. This water-soluble solvent acts synergistically with the above component (B) and contributes to the improvement of the detergency against oil stains. It improves the detergency, in particular, the permeability to oil stains and the solubility of stains. Formulated for the purpose of improving. Moreover, this water-soluble solvent also contributes to the improvement of rinse property.

Examples of the glycol ether solvent include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dipropyl ether, ethylene glycol dibutyl ether, etc. Ethylene glycol ethers, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dibutyl ether, and other diethylene glycol ethers, propylene glycol monomethyl ether , Propylene glycol monobutyl ether, propylene glycol monophenyl ether, propylene glycol dimethyl ether, propylene glycol ethers such as propylene glycol dibutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monobutyl ether, dipropylene glycol dimethyl ether, dipropylene glycol dibutyl ether Dipropylene glycol ethers such as alkylene glycols such as propylene glycol and polyethylene glycol.

  Examples of the alcohol include methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol, methoxybutyl alcohol, benzyl alcohol, 3-methyl-3-methoxybutanol and the like.

  Examples of the pyrrolidone compounds include N-alkyl such as 2-pyrrolidone, 3-pyrrolidone, N-vinyl-2-pyrrolidone, N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, N-propyl-2-pyrrolidone, etc. 2-Pyrrolidone, 5-methyl-2-pyrrolidone, 5-ethyl-2-pyrrolidone, 5-alkyl-2-pyrrolidone such as 5-propyl-2-pyrrolidone, N-methyl-3-pyrrolidone, N-ethyl- And N-alkyl-3-pyrrolidone such as 3-pyrrolidone and N-propyl-3-pyrrolidone.

  Among the above components (C), glycol ether solvents are preferably used from the viewpoint of rinsing properties, permeability to oil stains, and stain solubility. Among them, the permeability to oil stains and the solubility of stains are preferred. From the viewpoint of economy, diethylene glycol ethers are preferably used.

  Moreover, the compounding quantity of the water-soluble solvent which is the said (C) component is set in the range of 0.1 to 30% with respect to the whole this composition. That is, when the blending amount is less than 0.1%, rinsing properties, detergency, particularly oil stain permeability and stain solubility are poor, whereas when it exceeds 30%, the storage stability of the composition is poor. Because it becomes. In particular, setting in the range of 1 to 15% is preferable from the viewpoint of storage stability and economic efficiency of the composition.

  Examples of the alkali agent as the component (D) include inorganic salts such as carbonates such as sodium carbonate and potassium carbonate, hydroxides such as sodium hydroxide and potassium hydroxide, and silicates such as sodium silicate and potassium silicate. Examples include alkaline substances and organic alkaline substances such as ammonia, morpholine, alkanolamine. This alkaline agent is blended for the purpose of improving the detergency against oil stains and may be used alone or in combination of two or more.

  Among the above components (D), inorganic alkaline substances are preferably used from the viewpoint of improving the detergency against oil stains. Among them, from the viewpoint of improving detergency against oil stains and economical efficiency, carbonate and / or Hydroxides are preferably used.

  Moreover, the compounding quantity of the alkaline agent which is the said (D) component is set in the range of 0.1 to 20% with respect to the whole this composition. That is, if the blending amount is less than 0.1%, the effect of improving the detergency against oil stains is poor, while if it exceeds 20%, the storage stability of the composition is poor. In particular, setting in the range of 1 to 10% is preferable from the viewpoint of the effect of improving the detergency against oil stains and economy.

Examples of the chelating agent as component (E) include hydroxycarboxylic acids such as citric acid, gluconic acid, tartaric acid, malic acid, succinic acid, and lactic acid and / or their salts, nitrilotriacetic acid, ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetetra Aminocarboxylic acids such as acetic acid, diethylenetriaminepentaacetic acid, methylglycine diacetic acid and / or their salts, acrylic acid polymers, maleic acid polymers, acrylic acid-maleic acid copolymers, poly-α-hydroxyacrylic acid and / or Or polymeric chelating agents, such as those salts, etc. are mention | raise | lifted.
Examples of these salts include alkali metal salts, alkaline earth metal salts, ammonium salts, and alkanolamine salts. However, these (E) components may remain in the acid form, or part or all of them. It may be in the form of salt.
These chelating agents are blended for the purpose of improving the detergency and the storage stability of the composition, and may be used alone or in combination of two or more.

  Moreover, the compounding quantity of the chelating agent which is the said (E) component is set in the range of 0.1-20% with respect to this composition whole. That is, when the blending amount is less than 0.1%, the effect of improving the detergency and storage stability of the present composition is poor, while when it exceeds 20%, the effect of improving the detergency becomes saturated, rather economically. This is disadvantageous and the storage stability of the composition is poor. In particular, setting in the range of 0.5 to 10% is preferable from the viewpoints of economy and storage stability of the present composition.

Examples of the water as the component (F) include pure water, ion exchange water, soft water, distilled water, and tap water. These may be used alone or in combination of two or more. Of these, tap water and ion-exchanged water are preferably used from the viewpoints of economy and storage stability of the present composition.
The “water” is the sum of water contained in the form of crystal water or aqueous solution derived from each component constituting the hard surface cleaning composition of the present invention and water added from the outside. It mix | blends so that the whole composition may be 100%.

  In the detergent composition for hard surface of the present invention, a cationic surfactant can be blended as a component (G) as necessary, together with the essential components (A) to (F). This component (G) contributes to the improvement of the sterilization action against bacteria and fungi adhering to the surface to be cleaned, and also contributes to the effect of improving the storage stability of the composition.

  Examples of the cationic surfactant that is the component (G) include monoalkyltrimethylammonium halide, monoalkyldimethylhydroxyethylammonium halide, alkyldimethylbenzylammonium halide, dialkyldimethylammonium halide, trialkylmonomethylammonium halide, and dialkyldimethylammonium. Examples include adipate. These cationic surfactants may be used alone or in combination of two or more.

Specifically, examples of the monoalkyltrimethylammonium halide include lauryltrimethylammonium chloride, myristyltrimethylammonium chloride, and stearyltrimethylammonium chloride.
Examples of the monoalkyldimethylhydroxyethylammonium halide include lauryldimethylhydroxyethylammonium chloride and myristyldimethylhydroxyethylammonium chloride.
Examples of the alkyldimethylbenzylammonium halide include C10-14 alkyldimethylbenzylammonium chloride, lauryldimethylbenzylammonium chloride, myristyldimethylbenzylammonium chloride, stearyldimethylbenzylammonium chloride, and the like.
Examples of the dialkyldimethylammonium halide include didecyldimethylammonium chloride and octyldecyldimethylammonium chloride.
Examples of the trialkyl monomethyl ammonium halide include trilauryl monomethyl ammonium chloride.
Examples of the dialkyldimethylammonium adipate include didecyldimethylammonium adipate and octyldecyldimethylammonium adipate.

  Among these, as the component (G), alkyldimethylbenzylammonium halide and dialkyldimethylammonium halide are preferable from the viewpoint of sterilization effect, and alkyldimethylbenzylammonium chloride and dialkyldimethyl are particularly preferable from the viewpoint of availability. Ammonium chloride is preferred.

  Moreover, it is preferable that the compounding quantity of the cationic surfactant which is the said (G) component is set in the range of 0.1 to 30% with respect to the whole this composition. That is, if the blending amount is less than 0.1%, the sterilizing effect is poor, while if it exceeds 30%, the sterilizing effect becomes saturated and may be economically disadvantageous. In particular, setting in the range of 0.5 to 20% is preferable from the viewpoint of economy.

  Further, the hard surface cleaning composition of the present invention includes, as optional components, a pH adjuster, a viscosity adjuster, a dye, a fragrance, an antiseptic, an antifungal agent, and metal corrosion as long as the effects of the present invention are not hindered. Inhibitors, deodorants, antistatic agents, antifoaming agents, and the like can be used.

  The detergent composition for hard surface of the present invention is set so that the pH in the stock solution (JIS-Z-8802: 1984 “pH measurement method”) is 12 or more at 25 ° C., and is usually in the range of 12-14. is there. That is, if the pH of the undiluted solution is less than 12, the cleaning power against oil stains is poor.

  Next, examples will be described together with comparative examples. The present invention is not limited to these.

  The hard surface detergent compositions having the compositions shown in Examples 1 to 25 and Comparative Examples 1 to 11 in Tables 1 to 6 below are prepared, the pH is measured, and the detergency, rinsability and storage stability are measured. Each item was evaluated. In addition, the component and its pure part (%) which were used in Tables 1-6 of the postscript are as follows, and the numerical value in a table | surface is shown with content (pure part) of each component. Furthermore, the results of the above four items are also shown in Tables 1 to 6 below.

* Nonionic surfactant 1: polyoxyethylene polyoxypropylene alkyl ether (manufactured by Sanyo Chemical Industries, Ltd./trade name: NAROACTY HN-100, 100% pure)
* Nonionic surfactant 2: polyoxyethylene polyoxypropylene alkyl ether (Daiichi Kogyo Seiyaku Co., Ltd./trade name: Neugen LP-100, 100% pure)
* Nonionic surfactant 3: Polyoxyethylene alkyl ether (Daiichi Kogyo Seiyaku Co., Ltd./trade name: DKS NL-90, 100% pure)
* EDTA · 3K: ethylenediaminetetraacetic acid · 3 potassium * NTA · 3Na: nitrilotriacetic acid · trisodium
* Cationic surfactant 1: alkyl (C12-14) dimethylbenzylammonium chloride (manufactured by Sanyo Kasei Kogyo Co., Ltd./trade name: cation G-50, pure 50%)
* Cationic surfactant 2: Didecyldimethylammonium chloride (manufactured by Sanyo Chemical Industries, Ltd./Brand name: Cation DDC-50, 50% pure)

(1) pH measurement
〔Measuring method〕
Using a pH meter (manufactured by Toa Denpa Kogyo Co., Ltd., model: HM-30V), the pH value at 25 ° C. of the stock solution of each composition was measured according to JIS Z-8802: 1984, and judged according to the following criteria. .
[Criteria]
A: 12 or more x: Less than 12

(2) Detergency 1: Edible oil model dirt [Preparation of edible oil model dirt]
A solution prepared by dissolving 10 g of beef tallow, 10 g of soybean oil, 0.25 g of monoolein and 0.1 g of oil red in 60 ml of chloroform was uniformly applied to a slide glass (7.6 cm × 2.6 cm) in an amount of 0.5 ml. This was dried at room temperature for 48 hours to obtain a test piece.
〔Test method〕
Four test pieces prepared above were immersed in an aqueous solution of each composition diluted 100 times with tap water, and stirred using a stirrer. After 3 minutes, it was removed, rinsed with pool water, and air-dried overnight.
The degree of removal of the model dirt was measured by weight, and the washing rate was obtained by the following formula, and judged according to the following criteria.
Detergency (%) = (weight of dirt removed by detergency test) / (weight of dirt adhered before detergency test) × 100
[Criteria]
◎: Cleaning rate of 90% or more ○: Cleaning rate of 70% or more and less than 90% △: Cleaning rate of 50% or more and less than 70% ×: Cleaning rate of less than 50%

(3) Detergency 2: Floor model dirt [Preparation of floor model dirt]
50 g of standard pollutant for carpet dirt test stipulated in JIS L 1023 8.1 Floor model soil was prepared by mixing 38 g of D-40 (solvent manufactured by Exxon Chemical Co., Ltd.).
3 ml of the floor model soil was uniformly applied to a vinyl floor tile (30 cm × 30 cm), dried at 50 ° C. for 1 day, and cut into 3 cm × 7.5 cm to obtain a test piece.
〔Test method〕
To the test piece prepared above, 3 ml of each composition solution diluted 40 times with tap water was dropped, and after 2 minutes, a white pad (4 cm) was used with a washability tester (manufactured by Tester Sangyo). The detergency test was performed by 25 reciprocations at x8 cm). After the test, it was rinsed with a constant amount of tap water for 5 seconds and dried at room temperature.
The brightness of the test pieces before and after the test was measured using a color difference meter (manufactured by Minolta, model: CR-331), and the washing rate was determined by the following formula, and determined by the following criteria.
Cleaning rate (%) = (lightness after cleaning−lightness before cleaning) / (lightness before adhesion of dirt−lightness before cleaning) × 100
[Criteria]
◎: Cleaning rate of 90% or more ○: Cleaning rate of 70% or more and less than 90% △: Cleaning rate of 50% or more and less than 70% ×: Cleaning rate of less than 50%

(4) Rinse [test method]
A solution of each composition diluted 40-fold with tap water was applied to the floor so as to be 100 ml / m ² , and the floor was rubbed with a deck brush (manufactured by Johnson Professional). Thereafter, the degree of disappearance of bubbles when rinsed with a certain amount of tap water was visually evaluated, and judged according to the following criteria.
[Criteria]
(Double-circle): A bubble disappears quickly and rinse property is very good.
○: Bubbles disappear immediately, and rinsing properties are good.
(Triangle | delta): A bubble is a little hard to lose | disappear and a rinse property is bad. (Not practical)
X: Bubbles hardly disappeared and the rinsing property was very bad.

(5) Storage stability 1: Low temperature stability [Test method]
Each composition was placed in a 250 mL glass bottle, placed in an atmosphere at 5 ° C. with a refrigerator (Hoshizaki, model: HRF-90P), and stored for 3 months. The appearance of each composition after 3 months was visually observed and evaluated according to the following criteria.
[Criteria]
A: No precipitation, discoloration, or separation was observed in the composition.
○: Precipitation, discoloration, and separation were slightly observed in the composition.
Δ: Precipitation, discoloration, and separation were clearly observed in the composition. (Not practical)
X: Precipitation, discoloration, and separation were remarkably observed in the composition.

(6) Storage stability 2: Room temperature stability [Test method]
Each composition was placed in a 250 mL glass bottle and stored at room temperature (10-30 ° C.) for 3 months. The appearance of each composition after 3 months was visually observed and evaluated according to the following criteria.
[Criteria]
A: No precipitation, discoloration, or separation was observed in the composition.
○: Precipitation, discoloration, and separation were slightly observed in the composition.
Δ: Precipitation, discoloration, and separation were clearly observed in the composition. (Not practical)
X: Precipitation, discoloration, and separation were remarkably observed in the composition.

(7) Storage stability 3: High temperature stability [Test method]
Each composition was put in a 250 mL glass bottle, placed in a 50 ° C. atmosphere by a thermostatic bath (manufactured by Yamato Scientific Co., Ltd., model: IS82), and stored for 3 months. The appearance of each composition after 3 months was visually observed and evaluated according to the following criteria.
[Criteria]
A: No precipitation, discoloration, or separation was observed in the composition.
○: Precipitation, discoloration, and separation were slightly observed in the composition.
Δ: Precipitation, discoloration, and separation were clearly observed in the composition. (Not practical)
X: Precipitation, discoloration, and separation were remarkably observed in the composition.

  From the above results, it can be seen that the products of Examples 1 to 25 have a pH of 12 or more, and show good performance in any of the test items of detergency, rinsing properties and storage stability.

  On the other hand, it was found that the comparative example 1 product containing no nonionic surfactant (A) was inferior in detergency and storage stability, and the comparative example 2 product having an excessive content of component (A) was rinsed It turns out that it is inferior to property and storage stability. Moreover, it turns out that the comparative example 3 goods which do not contain the terpene-type hydrocarbon solvent of (B) component are inferior in detergency, and the comparative example 4 goods whose content of (B) component is excessive are in storage stability. You can see that it is inferior.

  And the comparative example 5 goods which do not contain the water-soluble solvent of (C) component are inferior in a detergency and rinsing property, and the comparative example 6 goods in which content of (C) component is excessive are inferior in storage stability. I understand. Moreover, it turns out that the comparative example 7 goods which do not contain the alkali agent of (D) component are inferior in detergency, and the comparative example 8 goods in which content of (D) component is excess may be inferior in storage stability. Recognize. And the comparative example 9 goods which do not contain the chelating agent of (E) component are inferior in detergency and storage stability, and the comparative example 10 goods in which content of (E) component is excessive are inferior in storage stability. I understand.

  Moreover, it turns out that the comparative example 11 whose pH in a composition undiluted | stock solution is less than 12 is inferior to a cleaning power.

Claims (8)

(A) Nonionic surfactant 0.1-30 mass%,
(B) Terpene hydrocarbon solvent 0.001 to 10% by mass,
(C) Water-soluble solvent 0.1-30% by mass,
(D) Alkaline agent 0.1-20 mass%,
(E) Chelating agent 0.1-20% by mass and (F) Water is contained, and the pH in the stock solution (JIS-Z-8802: 1984 “pH measurement method”) is set to 12 or more at 25 ° C. A cleaning composition for hard surfaces, wherein further,
(G) Cationic surfactant 0.1-30% by mass
The hard surface cleaning composition according to claim 1, comprising:   The detergent composition for hard surfaces according to claim 1 or 2, wherein the nonionic surfactant of the component (A) is a polyoxyalkylene alkyl ether and / or a polyoxyalkylene alkenyl ether.   The detergent composition for hard surfaces according to any one of claims 1 to 3, wherein the terpene hydrocarbon solvent as the component (B) is a monoterpene hydrocarbon and / or a sesquiterpene hydrocarbon.   The hard-surface cleaning composition according to any one of claims 1 to 4, wherein the water-soluble solvent of the component (C) is at least one selected from glycol solvents, alcohols, and pyrrolidone compounds.   The alkali composition of the said (D) component is an inorganic alkaline substance, The cleaning composition for hard surfaces as described in any one of Claims 1-5.   The chelating agent of the component (E) is at least one selected from hydroxycarboxylic acids and / or salts thereof, aminocarboxylic acids and / or salts thereof, and polymer chelating agents. The cleaning composition for hard surfaces according to 1.   It is a use for floors, The cleaning composition for hard surfaces as described in any one of Claims 1-7.