JP5519915B2 - Neutral detergent composition for hard surfaces - Google Patents

Description

  The present invention relates to a neutral detergent composition for hard surfaces.

In kitchens, food processing factories, etc., oil frequently scatters to the equipment and the surrounding area at the food processing stage, and there is a need to perform a lot of cleaning. As the cleaning agent used at this time, a cleaning agent containing an alkali agent or a surfactant as a main component and a solvent is used (Patent Documents 1 and 2). In general, it is desirable to use an alkaline cleaning agent in order to increase the cleaning power against oil stains adhering to a hard surface. Moreover, the acidic cleaning composition containing a terpene solvent and a specific organic acid is disclosed (Patent Document 3). For these cleaning agents, use of protective equipment (glasses, rubber gloves) is recommended from the viewpoint of safety, but safety considering damage to the base material constituting the hard surface and influence on fingers. In the field where simplicity and workability are strongly demanded, development of a neutral detergent is highly expected. From this point of view, neutral detergent compositions have been proposed (Patent Documents 4 and 5).
JP 2008-44994 A JP 2006-8801 A JP 2007-314737 A JP 2000-297296 A JP-A 61-157594

  As mentioned above, considering the damage to the base material that constitutes the hard surface and the effects on the fingers, a neutral cleaning agent is desirable, but the cleaning power against oil stains adhering to the hard surface is maintained while maintaining neutrality. It is difficult to increase.

  Also, by adding a surfactant (especially a cationic surfactant), the wiping property (easy wiping, stickiness after wiping) after applying the cleaning agent to a hard surface tends to decrease. However, the conventional technology has not yet achieved a sufficient effect.

  An object of the present invention is to provide a neutral detergent composition for a hard surface that has a high detergency against oil stains adhering to the hard surface and is excellent in wiping after application.

  The present invention comprises (A) a hydrocarbon having 6 to 16 carbon atoms [hereinafter referred to as component (A)], (B) a cationic surfactant (hereinafter referred to as component (B)), and (C) a nonionic surfactant. And a neutral detergent composition for hard surfaces containing at least one surfactant selected from amphoteric surfactants (hereinafter referred to as component (C)) and water.

  ADVANTAGE OF THE INVENTION According to this invention, the neutral detergent composition for hard surfaces which is high in the detergency with respect to the oil stain adhering to a hard surface, and was excellent also in the wiping off after application is provided.

<(A) component>
The component (A) of the present invention is a hydrocarbon having 6 to 16 carbon atoms. Examples of the hydrocarbon include aliphatic hydrocarbons and aromatic hydrocarbons, but aliphatic hydrocarbons are preferable from the viewpoint of stability of the blended product, aliphatic hydrocarbons having 6 to 16 carbon atoms are more preferable, and carbon number 8-14 aliphatic hydrocarbons are particularly preferred. Furthermore, C10-13 aliphatic hydrocarbon is preferable. Further, saturated hydrocarbons are preferable, and saturated aliphatic hydrocarbons are most preferable. Specifically, hexane, cyclohexane, heptane, octane, nonane, decane, undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, an α-olefin having 10 carbon atoms, an α-olefin having 12 carbon atoms, an α having 14 carbon atoms. -Olefin, D-limonene, L-limonene, α-terpineol, cariofumurene, cedrene and the like can be mentioned, and decane, undecane, dodecane, tridecane, D-limonene, L-limonene and the like are preferable. More preferred are decane, undecane, dodecane, and tridecane.

<(B) component>
Component (B) of the present invention is a cationic surfactant, an alkyltrimethylammonium salt, a dialkyldimethylammonium salt, a triethanolamine difatty acid ester quaternary salt, a fatty acid of N-hydroxyethyl-N-methyl-propanediamine Examples include monoester monoamide salts, alkylbenzyldimethylammonium salts, alkylammonium salts, alkylpyridinium salts, and polyethylene polyamines.

  Among them, a cationic surfactant having bactericidal properties is preferable, and a cationic surfactant represented by the following general formula (B1) and a cationic surfactant represented by the general formula (B2) as a cationic surfactant having bactericidal properties. And at least one cationic surfactant selected from agents.

[In the formula, any one or two of R ^{b1 to} R ^b4 is a linear or branched alkyl or alkenyl group having 8 to 16 carbon atoms, or

And the rest are the same or different and are an alkyl group having 1 to 3 carbon atoms, a benzyl group, or a formula — (CH ₂ CH ₂ O) _m H (m is the average number of moles of ethylene oxide added and 2 R ^b5 represents a linear or branched alkyl or alkenyl group having 12 to 18 carbon atoms, and X ⁻ represents a halogen ion, preferably a chlorine ion, or an organic anion. The group which becomes becomes. ]

Specific examples of the component (B) include dialkyldimethylammonium halide, benzalkonium chloride, benzethonium chloride or a cationic surfactant obtained by converting these counter ions into other anions, and a cationic surfactant having bactericidal properties. Agents are preferred, and those having a residual methyl group represented by the formula (B1) and having two straight-chain alkyl groups having 8 to 10 carbon atoms as R ^{b1 to} R ^b4 are particularly desirable from the viewpoints of detergency and bactericidal properties. Most preferred.

<(C) component>
(C) component of this invention is 1 or more types of surfactant chosen from the group which consists of a nonionic surfactant and an amphoteric surfactant. Specific examples include the following. In addition, (D) component mentioned later is excluded from (C) component.

  Nonionic surfactants include polyoxyalkylene alkyl or alkenyl ethers, polyoxyalkylene alkyl phenyl ethers, sucrose fatty acid esters, fatty acid glycerin esters, amine oxides, higher fatty acid alkanolamides or alkylene oxide adducts thereof. And alkyl (poly) glycosides.

As the alkyl (poly) glycoside, an alkyl (poly) glycoside represented by the following general formula (C1) is preferable.
R ^c1 (OR ^c2 ) _x G _y (C1)
[Wherein R ^c1 represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms in total or an alkyl (C 2 to 12) phenyl group, and R ^c2 represents 2 to 4 carbon atoms. Represents an alkylene group, G represents a residue derived from a reducing sugar having 5 to 6 carbon atoms, x (average value) represents 0 to 5, and y (average value) represents 1 to 5. ]

  The average value of x in the formula (C1) is 0 to 5, but a preferable value of x is 0 to 2, particularly preferably 0.

  In the formula (C1), when the average value is larger than 1, that is, when a sugar chain of two or more saccharides is used as a hydrophilic group, the binding mode of the sugar chain is 1-2, 1-3, 1-4. , 1-6 linkages, as well as α-, β-pyranoside linkages or furanoside linkages and any mixtures having these mixed modes of binding. Moreover, the average value of y in general formula (C1) is 1-5, Preferably it is 1-1.5, More preferably, it is 1.1-1.4. In addition, the measured value of y is based on the proton NMR method.

R ^c1 in formula (C1) is preferably an alkyl group having 10 to 14 carbon atoms from the viewpoint of solubility and detergency. R ^c2 is preferably an alkylene group having 2 to 3 carbon atoms from the viewpoint of water solubility.

  The structure of G in the formula is determined by the raw material of monosaccharide or disaccharide or more, but as the raw material of G, in the case of monosaccharide, glucose, fructose, galactose, xylose, mannose, lyxose, arabinose and a mixture thereof, etc. Examples of the disaccharide or more include maltose, xylobiose, isomaltose, cellobiose, gentibiose, lactose, sucrose, nigerose, tulanose, raffinose, gentianose, merezitose, and a mixture thereof. Among these, preferable raw materials are glucose and fructose for monosaccharides and maltose and sucrose for disaccharides or more from the viewpoint of availability and cost. Among these, glucose is particularly preferable from the viewpoint of easy availability. When G in formula (C1) is derived from glucose, formula (C1) is an alkyl (poly) glucoside.

  Examples of amphoteric surfactants include sulfobetaines and carbobetaines having a linear or branched alkyl or alkenyl group having 1 to 22 carbon atoms.

  As the component (C), nonionic surfactants are preferable, and alkyl (poly) glycosides, and alkyl (poly) glycosides represented by the above general formula (C1) are particularly preferable. When a plurality of components (C) are used, it is preferable that the component (C) contains a nonionic surfactant, particularly an alkyl (poly) glycoside, and the component (C) is a nonionic surfactant, The proportion of alkyl (poly) glycoside is preferably 10 to 100% by weight, more preferably 20 to 100% by weight.

<(D) component>
The neutral detergent composition for hard surface of the present invention preferably further contains alkyl glyceryl ether as the component (D) in order to stabilize the component (A). As the component (D), an alkyl glyceryl ether represented by the following general formula (D1) is preferable.
R ^d1 —OCH ₂ CH (OH) CH ₂ OH (D1)
[Wherein R ^d1 represents an alkyl or alkenyl group having 4 to 12 carbon atoms, a benzyl group or a phenyl group. ]

From the viewpoint of composition stability, R ^d1 in formula (D1) is preferably an alkyl group having 6 to 12 carbon atoms, and particularly preferably an alkyl group having 8 to 11 carbon atoms. Of these, 2-ethylhexyl glyceryl ether and isodecyl glyceryl ether are preferable.

<Neutral detergent composition for hard surface>
It is preferable that the neutral detergent composition for hard surfaces of this invention contains (A) component 1-30 weight%, Furthermore, 2-20 weight%, Furthermore, 3-10 weight%. Moreover, it is preferable to contain 0.1-20 weight% of (B) component, 0.5-15 weight%, and also 1-10 weight%. Further, the component (C) is preferably contained in an amount of 1 to 30% by weight, further 2 to 30% by weight, and further 3 to 20% by weight. Moreover, when it contains (D) component, content of (D) component is 0.1 to 20 weight% in a composition, Furthermore, 0.5 to 15 weight%, Furthermore, 1 to 10 weight% is preferable. . The weight ratio of the component (D) and the component (C) is preferably (D) / (C) = 1/10 to 2/1, more preferably 3/10 to 1/1. The neutral detergent composition for hard surfaces of the present invention contains these components (A) to (C) and water, and further optional components such as component (D) blended as necessary. The water content is preferably 10 to 99, more preferably 30 to 95% by weight, and even more preferably 50 to 90% by weight.

  The neutral detergent composition for hard surface of the present invention preferably has a pH of 6-8 at 20 ° C., more preferably 6.2-8. This pH can be measured by, for example, pH METER F-22 (HORIBA).

  The neutral detergent composition for hard surface of the present invention contains a water-soluble solvent, a higher alcohol, an antioxidant, a rust inhibitor, a pH adjuster, silicone oils, fluorine oils, a dye, a fragrance and the like as optional components. can do. Further, a bactericide such as a biguanide fungicide such as chlorhexidine or chlorhexidine gluconate, or an amino acid fungicide such as alkyldiaminoethylglycine or alkylpolyaminoethylglycine can be contained.

  The neutral detergent composition for hard surfaces of the present invention can be applied to hard surfaces of general households such as kitchens, kitchens, bathrooms, and toilets, and hard surfaces of various industrial facilities such as food processing factories. In particular, it can be suitably applied to hard surfaces such as kitchens, kitchens, food processing factories and the like where oil stains are likely to adhere.

  The neutral detergent composition for hard surfaces of the present invention is used as it is or as a suitable dilution to clean the hard surface as a cleaning medium. The concentration of the component (A) in the cleaning medium is preferably 0.01 to 50% by weight, more preferably 0.05 to 10% by weight. The concentration of component (B) is preferably 0.001 to 20% by weight, more preferably 0.01 to 5% by weight. The concentration of component (C) is preferably 0.01 to 50% by weight, more preferably 0.05 to 10% by weight. The concentration of component (D) is preferably 0.001 to 20% by weight, more preferably 0.01 to 5% by weight. It is preferable to adjust the dilution rate so as to be within this range. The pH of the cleaning medium at 20 ° C. is preferably 6-8. The dilution is preferably performed with water.

  The neutral detergent composition for hard surfaces shown in Table 1 was prepared, and the following evaluation was performed. The results are shown in Table 1.

Experimental method 1 (cleaning test)
As an evaluation of detergency, a linac improved washing test method using oil was performed.
After adding 300 g of chloroform and 0.3 g of Sudan III (oil-soluble dye) to a mixed oil of 180 g of melted beef tallow and 20 g of rapeseed oil, a model oil stain was obtained by filtering with gauze. A 30 mm × 80 mm × 1 mm size SUS plate previously washed with hexane is used as a test piece, and a set of four plates is used to measure the tare weight. One of the test pieces is immersed in the model oil stain for 2 seconds, and the model oil stain is adhered to the vicinity of 50 mm of the test piece. Excess dirt attached to the lower part of the specimen is blotted with paper. Then, it is air-dried at 25 ± 2 ° C. and measured for the weight before washing. A test piece with model oil stains was set in a Leanut improved washing machine, and a temperature of 25 ± 2 ° C. with a 1% cleaning solution (100-fold diluted aqueous solution) in which 693 g of ion-exchanged water was mixed with 7 g of the cleaning composition shown in Table 1. Wash with. After 3 minutes, the test piece is taken out, air-dried, the weight (weight after washing) is measured, and the washing rate is calculated by the following formula. The cleaning rate of 4 sheets per cleaning agent was calculated by the following formula, and the average value was evaluated.

Experimental method 2 (cleaning test)
As another evaluation of detergency, a heat-denatured oil wiping test was conducted.
Oil obtained by heat-treating rapeseed oil under air contact conditions at 180 ° C. for 24 hours was defined as heat-denatured oil. 0.6 g of this modified oil and 0.06 g of Sudan III (oil-soluble dye) are weighed and a solution adjusted to 300 g with chloroform is prepared. 2 mL of denatured oil chloroform solution is applied onto a 100 mm × 200 mm × 1 mm size SUS plate previously washed with hexane, and uniformly applied with a glass rod. A plate dried at room temperature for 1 day is used as a test piece. A 12 cm × 21.5 cm Kimwipe (manufactured by Nippon Paper Crecia Co., Ltd.) is impregnated with 1 mL of a test solution diluted to a width of 2 cm and a length of 2.5 cm and diluted 100 times. With this cleaning liquid impregnated paper, the SUS plate is wiped once in the horizontal direction (100 mm). Place the wipe in a glass container. Then, 20 mL of hexane is added to dissolve the wiped oil, the absorbance of the liquid at a wavelength of 500 nm is measured, and the value is defined as A0. This value indicates the oil content wiped off. Then, 20 mL of hexane is newly put in a container different from the above, and the absorbent cotton is dipped, and the remaining oil portion of the portion wiped off by the SUS plate wiping test is wiped off with the absorbent cotton. The absorbent cotton is returned to the container containing hexane to dissolve the wiped oil, and the absorbance of the liquid at a wavelength of 500 nm is measured, and the value is defined as A1. By the way, this value shows the oil that has been wiped off. The wiping cleaning rate was calculated from the above measured values by the following formula.

Experiment Method 3 (Wipe remaining test)
5 g of an aqueous solution of a cleaning composition diluted 100 times is impregnated into Kim Towel (manufactured by Nippon Paper Crecia Co., Ltd.) folded to a width of 9 cm and a length of 10 cm. Using this liquid-impregnated paper, a glass plate having a size of 150 mm × 150 mm × 2 mm, which has been washed with ethanol in advance, is wiped twice in both vertical and horizontal directions. After drying at room temperature for 1 day, the presence or absence of wiping lines on the glass surface was visually determined, and then the slip feeling was evaluated by 5 people in a sensory test in 5 stages. Table 1 shows the average value of four people.
5: Good without slipping, no wiping lines 4: Slightly sliding, no wiping lines 3: Slightly sliding, some wiping lines are observed 2: Sliding well, some wiping lines are observed 1: Good sliding, wiping lines are also observed . A finishing wipe is required.

The components in the table are as follows.
Benzalkonium chloride: Sanisol B-50 manufactured by Kao Corporation
-Alkyl (poly) glycoside: Myo Do 12 manufactured by Kao Corporation
・ Lauryl sulfate sodium salt: EMAL 0, manufactured by Kao Corporation

  From the comparison of the examples and comparative examples in Table 1, the cleaning composition of the present invention is neutral, but has excellent immersion cleaning properties and wiping cleaning properties against oil stains adhering to the hard surface. It can also be seen that it has excellent wipeability.

Claims (4)

(A) C10-13 aliphatic hydrocarbon (hereinafter referred to as component (A)), (B) cationic surfactant (hereinafter referred to as component (B)), (C) alkyl (poly) glycoside (hereinafter referred to as component) , (C) component], (D) alkyl glyceryl ether (hereinafter referred to as component (D)), and a neutral detergent composition for wiping and cleaning hard surfaces containing water,
(B) containing 2.5 to 10% by weight of the component,
Neutral detergent composition for wiping and cleaning hard surfaces. The component (B) is at least one cationic surfactant selected from a cationic surfactant represented by the following general formula (B1) and a cationic surfactant represented by the general formula (B2). A neutral detergent composition for wiping and cleaning hard surfaces as described.
[In the formula, any one or two of R ^{b1 to} R ^b4 is a linear or branched alkyl or alkenyl group having 8 to 16 carbon atoms, or
And the rest are the same or different and are an alkyl group having 1 to 3 carbon atoms, a benzyl group, or a formula — (CH ₂ CH ₂ O) _m H (m is the average number of moles of ethylene oxide added and 2 a group represented by showing a to 20), R ^b5 represents a linear or branched alkyl or alkenyl group having 12 to 18 carbon atoms, X ^- is a halogen ion or an organic anion comprising group Show. ]   The neutral detergent composition for wiping washing | cleaning of the hard surface of Claim 1 or 2 whose pH in 20 degreeC is 6-8.   The component (A) contains 1 to 30% by weight, the component (C) 1 to 30% by weight, the component (D) 0.1 to 20% by weight, and the weight ratio of the component (D) to the component (C) is (D) / (C) = 1/10 to 2/1, The neutral detergent composition for the wiping cleaning of the hard surface according to any one of claims 1 to 3.