JP2010031293A - Cleaning agent composition for oil-contaminated floor surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning agent composition which exhibits good detergency in a floor cleaning treatment, does not contain an environmental pollutant in itself, and can separate contamination, such as an oil component, by only simple work in waste water treatment after cleaning, especially after floor cleaning. <P>SOLUTION: The cleaning agent composition for an oil-contaminated floor surfaces includes (A) 0.1-20 mass% fatty acid soap and (B) 0.5-10 mass% tetradecyldimethylamine oxide. The composition is characterized by the following: in a discharged water treatability evaluation performed about an underlayer which is obtained by adding 200 ml of a spindle oil to 1,800 ml of a 200 time-diluted solution by water, shaking the resultant liquid 50 times, and splitting after 15 hr lapse and which has a pH of 7.5-8.5, there are exhibited less than 5 mg/L of an n-hexane extract content and less than 40 mg/L of a chemical oxygen demand (COD). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention provides a cleaning composition, particularly for floor cleaning, and further suitable for use in factories, exhibition halls, buildings, vehicles, aircraft or ships. The present invention relates to a cleaning composition that can be separated from water and does not itself contain environmental pollutants and contributes to environmental conservation.

  Until now, floor cleaners containing alkylphenol ethoxylates have been used extensively because of their good cleaning properties, but these floor cleaners are used to clean objects such as oily contaminants. After the wastewater treatment, it became clear that aromatic components such as endocrine disrupting substances existed in the aromatic components, so the wastewater standards in the country became strictly regulated, Even if such wastewater is diluted, chemical oxygen demand (COD), n-hexane extractable substance content, hydrogen ion concentration (hydrogen index), etc. do not meet national wastewater standards, so further wastewater treatment processes are required. However, there is a problem that complicated work cannot be avoided.

  Under such circumstances, the problem of the present invention is that the cleaning property is good in cleaning processing, especially floor cleaning processing, and does not contain environmental pollutants in itself, and after cleaning, especially in waste water processing after floor cleaning. A simple cleaning agent that can separate contaminants such as oil, and can reduce chemical oxygen demand (COD), n-hexane extract content, hydrogen ion concentration (hydrogen index), etc. It is to provide a composition.

  As a result of intensive research to develop a detergent composition exhibiting the above-mentioned good characteristics, the present inventors have formulated a fatty acid soap and a specific amine oxide as active ingredients, and to this one. Furthermore, it discovered that the thing of the formulation which mix | blended the specific additive matched the objective, and came to complete this invention based on this knowledge.

That is, the present invention is as follows.
(1) (A) Fatty acid soap 0.1-20 mass% and (B) tetradecyl dimethylamine oxide 0.5-10 mass%,
In the evaluation of wastewater treatment performed on the lower layer of pH 7.5 to 8.5 obtained by adding 200 ml of spindle oil to 1800 ml of 200-fold diluted solution with water, shaking 50 times, and separating the layers after 15 hours. A cleaning composition for oil-contaminated floors, which exhibits a hexane extract content of less than 5 mg / L and a chemical oxygen demand (COD) of less than 40 mg / L.
(2) The detergent composition for oil-contaminated floor surfaces according to (1), wherein the fatty acid soap is coconut oil fatty acid soap.
(3) The cleaning composition for an oil-contaminated floor according to (1) or (2), further comprising (C) 0.01 to 0.01% by mass of a rust inhibitor.
(4) The cleaning composition for oil-contaminated floor surfaces according to (3), wherein the rust inhibitor is a benzotriazole-based or dicarboxylic acid-based one.
(5) The cleaning composition for oil-contaminated floors according to any one of (1) to (4), further comprising (D) 0.01 to 1% by mass of a preservative.
(6) The oil-contaminated floor cleaner composition according to (5), wherein the preservative is an isothiazoline-based, isothiazole-based, thiazoline-based, or thiazole-based one.

  The cleaning composition of the present invention has a good cleaning property in a cleaning process, particularly a floor cleaning process, especially a floor cleaning process applied with an epoxy or urethane coating, and can be easily performed in a drainage process after cleaning oily contamination. Oil can be separated from water, and it itself does not contain environmental pollutants, and it can separate contaminants such as oil by simple work in wastewater treatment after cleaning, especially after floor cleaning. In addition, the drainage water after treatment has a remarkable effect of reducing chemical oxygen demand (COD), n-hexane extractable substance content, hydrogen ion concentration (hydrogen index), and the like.

  About the fatty acid soap used as (A) component in the cleaning composition of this invention, C8-C22, Preferably it is 10-18, More preferably, the thing of 10-14 is mentioned. Examples of fatty acids corresponding to this fatty acid soap are saturated acids such as lauric acid, myristic acid, palmitic acid and stearic acid, unsaturated acids such as linoleic acid, linolenic acid and oleic acid, and mixtures thereof. A coconut oil fatty acid etc. are mentioned.

  In addition, tetradecyldimethylamine oxide used as component (B) is higher in viscosity than lower alkylamine oxides, especially laurylamine oxide, but it can increase detergency even at low viscosity, so it is effective in a smaller amount. is there.

Examples of the rust preventive used as the component (C) include benzotriazole-based and dicarboxylic acid-based compounds, other dicyclohexylammonium nitrates, p-tert-butylbenzoic acid, and the like. Aliphatic dicarboxylic acid type compounds such as Acid 1550 are preferred.
Examples of dicarboxylic acid-based compounds include those having 6 to 30 carbon atoms, preferably 8 to 25 carbon atoms such as adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, and 1,9-nonamethylenedicarboxylic acid. Aliphatic dicarboxylic acids such as 1-, 10-decamethylene dicarboxylic acid, 1-, 11-undecamethylene dicarboxylic acid, 1-, 12-dodecamethylene dicarboxylic acid, especially azelaic acid, sebacic acid, 1-, 9-nonamethylenedicarboxylic acid, 1-, 10-decamethylenedicarboxylic acid, the base or base residue forming the salt is an alkali metal such as sodium or potassium, monoethanolamine, diethanolamine, triethanolamine, monoisopropanol Amine such as amine, methyldiethanolamine, morpholine Among them, the above base or base residue is preferably potassium or amine, particularly potassium.

  Examples of preservatives used as component (D) include isothiazoline-based compounds such as 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazoline-3-one, Thiazole series, 2- (thiocyanomethylthio) benzothiazole and other thiazole series and thiazoline series, sodium benzoate, sodium paraoxybenzoate and paraoxybenzoate (eg, butyl ester, propyl ester, etc.) Examples include benzoic acid-based compounds, among which isothiazoline-based compounds such as 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one are preferable.

The cleaning composition of the present invention includes an antibacterial / antifungal agent, a diluting solvent, a stabilizing solvent, a hydrotrope, an antifreezing agent, an abrasive, an ultraviolet absorber, as necessary, as long as the object of the present invention is not impaired. Agents, pigments, fragrances and the like can be blended.
Antibacterial / antifungal agents include, for example, chlorhexidine, chlorhexidine gluconate, benzalkonium chloride, benzethonium chloride, lysozyme chloride, cetylpyridinium chloride, carboxylic acid derivatives (in this example thymol, hexyl resorcin, o-phenylphenol, biosol) Etc.).

  The cleaning composition of the present invention preferably contains water in addition to the above components, and an aqueous solvent such as a lower alcohol such as ethanol or isopropanol may be used, but in that case, a small amount was used together with water. It is preferable to use an aqueous solvent.

The content ratio of the composition component in the cleaning composition of the present invention is 0.1 to 20% by mass, preferably 0.2 to 10% by mass, more preferably 0.3 to 7% by mass for the fatty acid soap. Chosen by If this ratio is less than 0.1% by mass, the cleaning effect is not sufficiently exerted, and if it exceeds 20% by mass, the chemical oxygen demand (COD) during drainage treatment, the content of n-hexane extract, hydrogen ions The concentration (hydrogen index) cannot be lowered sufficiently.
Tetradecyldimethylamine oxide is selected in the range of 0.5 to 10% by mass, preferably 0.7 to 5% by mass, more preferably 1 to 3.5% by mass. If this ratio is less than 0.5% by mass, the cleaning effect is not sufficiently exhibited, and if it exceeds 10% by mass, the chemical oxygen demand (COD), the content of n-hexane extract, the hydrogen ions during wastewater treatment The concentration (hydrogen index) cannot be lowered sufficiently.
Further, in the case of a prescription in which a rust inhibitor or a preservative is further blended, the rust inhibitor is selected in the range of 0.01 to 1% by mass, preferably 0.02 to 0.5% by mass. If this ratio is less than 0.01% by mass, the rust preventive effect is not sufficiently exhibited, and if it exceeds 1% by mass, the chemical oxygen demand (COD) during waste water treatment is increased.
The preservative is selected in the range of 0.01 to 1% by mass, preferably 0.02 to 0.5% by mass. When this ratio is less than 0.01% by mass, the antiseptic effect is not sufficiently exhibited, and when it exceeds 1% by mass, the chemical oxygen demand (COD) during waste water treatment is increased.

  The cleaning composition of the present invention has a floor, specifically, a factory (for example, an automobile repair factory, a machine repair factory, an industrial waste processing factory, various manufacturing factories, etc.), an exhibition hall (for example, an automobile showroom, OA equipment). And exhibition halls such as home appliances), buildings (for example, various halls such as houses, office buildings, hotels, libraries, museums, museums, public halls, concert halls), vehicles such as cars and railway cars, aircraft, ships, etc. It is preferably applied to a floor which is applied to the floor, and particularly applied to an epoxy or urethane-based floor. Examples of the material of the floor include wood such as flooring, concrete, and a painted product thereof.

  EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by these examples. In addition, the ratio of the composition component in each example is represented by mass%.

Examples 1-7, Comparative Examples 1-3
The floor cleaning composition having the composition components and mixing ratio shown in Table 1 was prepared as each sample.

Various performance tests were performed on each sample as follows.
Washability: A 50% aqueous solution of each sample, that is, an aqueous solution obtained by diluting each sample twice with water was prepared in a 100 ml beaker, and this was used as a washing solution. Warm paraffin wax, mineral oil, vegetable oil, and blue dye on a polypropylene sheet with dimensions of 25 x 50 mm, attach contaminated oil that is uniformly dissolved, spread it evenly, and use it as a test piece. The color difference was measured in advance with a Minolta CR-210 color difference meter.
After immersing this test piece in a cleaning solution rotated at 450 rpm at 30 ° C. for 10 minutes, the color difference was measured again with the above color difference meter, the cleaning rate was determined by the following formula, and the following evaluation criteria were used.
Cleaning rate (%) = (ΔE ₁ −ΔE ₂ ) × 100 / ΔE ₁
(Here, ΔE ₁ indicates the color difference of the test piece before the cleaning test, and ΔE ₂ indicates the color difference of the test piece after the cleaning test.)
Detergency A: Good (cleaning rate of 90% or more)
○: Slightly good (cleaning rate 70% or more and less than 90%)
Δ: Slightly poor (cleaning rate of 50% or more and less than 70%)
X: Defect (cleaning rate less than 50%)

Oil / water separation property: Each test sample was diluted 200 times with water to prepare a test aqueous solution. 90 ml of this test aqueous solution is put into a 100 ml graduated cylinder with a stopper, 10 ml of spindle oil is put on it, and the graduated cylinder is plugged and shaken 50 times, then left at room temperature for 1 hour, and then separated into water layers. The transmittance was measured by a 300A type color difference / turbidity measuring instrument manufactured by Nippon Denshoku Industries Co., Ltd., and judged by the following evaluation criteria.
Oil-water separability ◎: Good (Transmittance 90% or more)
○: Slightly good (transmittance 70% or more and less than 90%)
Δ: Slightly poor (transmittance of 50% or more and less than 70%)
X: Defect (transmittance less than 50%)

-Effluent treatment property: Each sample was diluted 200 times with water to prepare a test aqueous solution. Place 1800 ml of this test aqueous solution in a 2 L (liter) separatory funnel, top with 200 ml of spindle oil, plug the separatory funnel, shake 50 times, and then let stand for 15 hours. Separated, filtered, measured pH, n-hexane extract content, chemical oxygen demand (COD), n-hexane extract content and chemical oxygen demand (COD) Judged by criteria.
n-hexane extract content ○: Less than 5 mg / L Δ: 5 mg / L or more and less than 20 mg / L ×: 20 mg / L or more Chemical oxygen demand (COD)
○: Less than 40 mg / L Δ: 40 mg / L or more and less than 120 mg / L ×: 120 mg / L
The test results are shown in Table 1.

In the table, various components indicated by trade names or abbreviations are as follows.
Aromox DM14D-N: manufactured by Lion Corporation, tetradecyldimethylamine oxide Neugen ET-135: manufactured by Daiichi Kogyo Seiyaku Co., Ltd., polyoxyethylene alkyl ether Neugen EA-130T: manufactured by Daiichi Kogyo Seiyaku Co., Ltd., nonylphenol ethoxylate MEA: monoethanol Amine Diacid 1550: Dicarboxylic acid rust preventive agent BTZ: Johoku Chemical Co., Ltd., benzotriazole rust preventive agent Topside 600: Permachem Asia Co., Ltd., thiazoline preservative

  From the table, it can be seen that the cleaning agent of each example exhibits good cleaning performance substantially equivalent to the cleaning agent of each comparative example, and is generally superior in waste water treatment performance than that of each comparative example.

Claims (6)

(A) Fatty acid soap 0.1-20 mass% and (B) tetradecyl dimethylamine oxide 0.5-10 mass%,
In the evaluation of wastewater treatment performed on the lower layer of pH 7.5 to 8.5 obtained by adding 200 ml of spindle oil to 1800 ml of 200-fold diluted solution with water, shaking 50 times, and separating the layers after 15 hours. A cleaning composition for oil-contaminated floors, which exhibits a hexane extract content of less than 5 mg / L and a chemical oxygen demand (COD) of less than 40 mg / L.   The detergent composition for oil-contaminated floor surfaces according to claim 1, wherein the fatty acid soap is coconut oil fatty acid soap.   Furthermore, (C) The cleaning composition for oil-contaminated floor surfaces of Claim 1 or 2 containing 0.01-0.01 mass% of rust preventive agents.   4. The oil-contaminated floor cleaner composition according to claim 3, wherein the rust preventive is a benzotriazole or dicarboxylic acid.   Furthermore, (D) The cleaning composition for oil-contaminated floor surfaces in any one of Claims 1 thru | or 4 containing 0.01-1 mass% of antiseptic | preservatives.   6. The oil-contaminated floor cleaner composition according to claim 5, wherein the preservative is an isothiazoline, isothiazole, thiazoline or thiazole.