JP4633448B2 - Hard surface cleaner - Google Patents

Description

  The present invention relates to cleaning agents for various hard surfaces such as plastic products (for example, water facilities in the home) and metal products.

  In bathrooms, bathtubs, sinks, etc., which are equipment around water at home, water droplets are likely to adhere to and remain on the surface of equipment after use due to water splashing from a faucet or shower during use. In the case of a bathroom, these water droplets remain damp and tend to cause mold, etc.In the case of a sink, the remaining water droplets are gradually dried while maintaining the shape at the time of attachment, and are in a small ring shape. It will be easier to keep track of. For example, in the case of a sink, the general response of consumers to such an inconvenient state is to wipe the water again with a cloth, etc., and to make efforts to maintain the aesthetics. In the case of, we remove the moisture from the bathroom by opening windows and doors, or by operating a ventilation fan, etc., and we are making efforts to promote drying. However, there are security problems, intrusion of pollutants from outside, or energy saving. From the point of view, none of them was a satisfactory coping method.

Under such circumstances, there has been a demand for a treatment method and a treatment agent that allow consumers to quickly dry without leaving water droplets in the water facilities such as bathrooms, bathtubs, and sinks. As a technique that has been disclosed so far for treatment of hard surfaces, Patent Document 1 discloses a cleaning and antifouling treatment agent for hydrophobic hard surfaces such as painted surfaces of automobiles, which contains a specific surfactant and a soil release polymer. However, Patent Documents 2 and 3 describe a detergent for hard surfaces containing a surfactant and a specific water-soluble polymer, and Patent Document 4 provides a quick drying property containing a specific cationic copolymer. Agents are disclosed.
JP 2002-265996 A Japanese Patent Application Laid-Open No. 8-25396 Japanese Patent Laid-Open No. 8-253797 JP 2003-183694 A

  However, Patent Documents 1 to 4 do not show the effect of promoting drying on surface materials such as a bathroom, a bathtub, and a sink. Under such circumstances, there is a demand for a treatment agent that can be easily dried without leaving water droplets on the hard surface of a facility around the water, such as a bathroom, bathtub, sink, and the like. In addition, it is desirable that such a treatment agent has good compatibility of the blending components and excellent liquid stability.

  Therefore, the subject of this invention is providing the effect which accelerates | stimulates drying with respect to the hard surface around water, such as a bathroom, a bathtub, and a sink, and is providing the processing agent excellent in liquid stability.

  The present invention provides (a) a polymer compound containing a structural unit (a1) represented by the following general formula (1) and a structural unit (a2) represented by the following general formula (2) [hereinafter referred to as (a) Component)], (b) a cationic surfactant (hereinafter referred to as component (b)), and (c) a hard surface cleaner containing water.

  According to the present invention, a hard surface cleaning agent that prevents water droplets from remaining, promotes drying, and has excellent liquid stability can be obtained by rinsing after application to a hard surface around water.

<(A) component>
The polymer compound of the component (a) having the structural unit (a1) and the structural unit (a2) is obtained by polymerizing and partially saponifying the monomer compound from which the structural unit (a2) is derived. be able to. For example, partially saponified polyvinyl alcohol obtained by partially saponifying polyvinyl acetate can be used as the polymer compound in which R in the general formula (2) is a methyl group.

  Among the structural units of the component (a), the total of the structural unit (a1) and the structural unit (a2) is preferably 50 to 100 mol%, more preferably 80 to 100 mol%, from the viewpoint of the effect.

  In addition, in the component (a), the molar ratio of the structural unit (a1) and the structural unit (a2) is 300-1 in (a1) / (a2), further 50-2, and further 20-2.5. It is preferable from the viewpoint of solubility and performance. The weight average molecular weight of the component (a) is preferably 10,000 to 1,000,000, more preferably 10,000 to 500,000, and particularly preferably 10,000 to 200,000. The weight average molecular weight here can be determined by gel permeation chromatography using polyethylene glycol as a standard.

<(B) component>
(B) Component cationic surfactants include alkyl (carbon number 10 to 20) trimethylammonium salts such as lauryltrimethylammonium chloride, stearyltrimethylammonium chloride, cetyltrimethylammonium chloride; distearyldimethylammonium chloride, dialkyl (carbon Dialkyl (carbon number 8-18) dimethylammonium salt such as dimethylammonium chloride; alkyldimethyl (carbon number 8-16) benzylammonium salt such as alkyl (carbon number 10-18) dimethylbenzylammonium chloride; substitution Benzalkonium salts; polycations such as N-alkyl-N, N, N ′, N ′, N′-pentamethyl-propyleneammonium salts in addition to monocationic compounds such as benzethonium salts Compounds, and the like. Of these, alkyldimethylbenzylammonium salts such as alkyl (carbon number 8 to 16) trimethylammonium salt and alkyl (carbon number 8 to 18) dimethylbenzylammonium chloride are preferable.

<Cleaning agent for hard surface>
The hard surface cleaning agent of the present invention is a liquid and preferably contains 0.001 to 5% by mass, further 0.01 to 5% by mass, and particularly 0.01 to 3% by mass of the component (a). Moreover, it is preferable to contain (b) component 0.001-20 mass%, 0.01-15 mass%, especially 0.01-10 mass%. The balance is water.

  The mass ratio of the component (a) to the component (b) is (a) / (b) = 0.01 / 20-5 / 0.01, more preferably 0.1 / 15-5 / 0.1, 0.1 / 10 to 3 / 0.1 is preferable.

  In the cleaning agent for hard surface of the present invention, a water-soluble solvent such as a monohydric alcohol having 1 to 5 carbon atoms or a polyhydric alcohol having 4 to 8 carbon atoms, preferably 0.001 to 20% by mass in the detergent, More preferably, it can mix | blend in the ratio of 0.001-10 mass%. Water-soluble solvents include ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, diethylene glycol monoalkyl (4 to 8 carbon atoms) ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether And a water-soluble solvent selected from propylene glycol monopropyl ether, propylene glycol monobutyl ether, and monoalkyl glyceryl ether having an alkyl group having 3 to 8 carbon atoms.

  Moreover, a chelating agent can be preferably mix | blended with the cleaning agent for hard surfaces of this invention in the ratio of 0.001-15 mass% in a cleaning agent, More preferably, 0.01-10 mass%. Examples of chelating agents include tripolyphosphoric acid, pyrophosphoric acid, orthophosphoric acid, hexametaphosphoric acid and alkali metal salts thereof; ethylenediaminetetraacetic acid, hydroxyiminodiacetic acid, dihydroxyethylglycine, nitrilotriacetic acid, hydroxyethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, triethylene Ethylenetetramine hexaacetic acid and alkali metal salts or alkaline earth metal salts thereof; aminotrimethylenephosphonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, ethylenediaminetetramethylenephosphonic acid, diethylenetriaminepentamethylenephosphonic acid, aminotrimethylene Phosphonic acid and alkali metal salts or alkaline earth metal salts thereof; a single polymer or copolymer of a monomer selected from acrylic acid and methacrylic acid; Rylic acid-maleic acid copolymer, poly α-hydroxyacrylic acid and alkali metal salts thereof; polyvalent carboxylic acid selected from citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid, maleic acid and the like One or more selected from alkali metal salts of: alkylglycine-N, N-diacetic acid, aspartic acid-N, N-diacetic acid, serine-N, N-diacetic acid, glutamic acid diacetic acid, ethylenediamine disuccinic acid, or these And the like.

  In addition, the hard surface cleaning agent of the present invention may contain a hydrotrope in a proportion of preferably 0.001 to 15% by mass, more preferably 0.01 to 10% by mass in the cleaning agent. Examples of the hydrotrope agent include benzenesulfonic acid substituted with 1 to 3 alkyl groups having 1 to 3 carbon atoms or a salt thereof. More specifically, preferable examples include p-toluenesulfonic acid, m-xylenesulfonic acid, p-cumenesulfonic acid, ethylbenzenesulfonic acid and the like. When a salt is used, sodium salt, potassium salt and magnesium salt are preferred. It is good.

  In addition to the above components, for example, a fragrance, an antibacterial agent, a viscosity modifier, a pigment, a dye, a suspending agent and the like are added to the hard surface cleaning agent of the present invention within a range not impairing the effects of the present invention. be able to. However, since surfactants other than the component (b) may impair the effects of the present invention, the mass% [B] of the surfactant other than the component (b) with respect to the mass% [A] of the component (b). ] Is [B] / [A] = 0.8 or less, preferably 0.5 or less, and more preferably 0.2 or less.

  The cleaning agent for hard surface of the present invention adjusts the composition according to the treatment of the hard surface. Moreover, each concentrated solution can be prepared and can be diluted and used at the time of use.

  The pH at 20 ° C. of the hard surface cleaning agent of the present invention is preferably 2 to 11, more preferably 3 to 10, particularly 4 to 8 from the viewpoint of safety during work and damage to the substrate. As pH regulators, acid agents such as inorganic acids such as hydrochloric acid and sulfuric acid, organic acids such as citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid, maleic acid, sodium hydroxide and potassium hydroxide, Alkaline agents such as sodium carbonate and potassium carbonate such as ammonia and derivatives thereof, amine salts such as monoethanolamine, diethanolamine, and triethanolamine may be used alone or in combination. In addition, these acid agents and alkali agents may be used in combination as a buffer system.

The method of applying the cleaning agent of the present invention to the hard surface can be selected according to the width (area) of the hard surface. For example, it can be performed by spraying about 0.1 to 10 mL of an aqueous solution having a component (a) content of 0.5% by mass per 10 cm ^{2 and} spreading it thinly using a sponge or the like.

  The cleaning agent of the present invention has a cleaning effect against oil stains, protein stains, sebum stains, etc., and can impart good hydrophilicity to a hydrophobic hard surface, and also has a sustained effect. Excellent. Therefore, according to the present invention, there is provided a method for treating a hard surface by applying the hard surface cleaning agent of the present invention to a hard surface and imparting persistent hydrophilicity. Moreover, the cleaning agent of the present invention not only simply hydrophilizes the hard surface, but also promotes drying. This is because the hard surface is hydrophilized, causing a water drop phenomenon (for example, a phenomenon in which water is slowly drained from the upper end after the surface is covered with a water film, etc.) As a result, it is considered that drying of the hard surface is promoted. Since the hard surface to which these effects are imparted is less prone to mold, the cleaning agent of the present invention is also suitable for mold prevention treatment. In addition, since the hydrophilicity is good, dirt adhering to the hard surface, particularly hydrophobic dirt, can be easily washed away with water, so that the cleaning agent of the present invention is suitable for antifouling treatment. In addition, since the hydrophilicity is good, water droplets (such as water vapor) adhering to the hard surface become a uniform water film, and the hard surface can be prevented from being fogged. Is preferred.

  The cleaning agent of the present invention is preferably applied to a hard surface that constitutes a facility around water, for example, a hydrophobic hard surface made of a material selected from plastic, ceramics, and metal. It is preferably applied to reinforced plastic (FRP), vinyl chloride, polypropylene, polyethylene, ABS, nylon, stainless steel, tile and the like.

  The cleaning agent for hard surfaces shown in Table 1 was prepared and evaluated as follows. The results are shown in Table 1. The pH of the cleaning agent was adjusted with sodium hydroxide and hydrochloric acid.

(1) Compatibility The state of the detergent immediately after preparation was visually observed, and the compatibility was evaluated according to the following criteria.
○: A precipitate was not generated, and it was dissolved transparently.
X: Precipitation or turbidity occurred.

(2) Water drainage 1 mL of the cleaning agent in Table 1 is applied to each of a PVC plate and a SUS304 plate (both manufactured by Engineering Test Service Co., Ltd., shape is 25 × 75 × 2 mm), and tap water at 30 ° C. (flow rate) After rinsing at 50 mL / second) for 30 seconds, whether or not the water drainage phenomenon occurred was visually observed, and the water drainability was evaluated according to the following criteria.
○: Water drainage phenomenon occurs.
X: Water drainage phenomenon does not occur.

(note)
The components in the table are as follows.
PVA: manufactured by Nippon Synthetic Chemical Industry Co., Ltd., Gohsenol GH-20, among all the structural units, the total of the structural unit (a1) and the structural unit (a2) is 100 mol%, and the structural unit (a1) and the structural unit (a2 ) Molar ratio is (a1) / (a2) = 86.5 / 13.5 to 89/11.
・ Alkyldimethylbenzylammonium chloride: alkyl group having 12 to 16 carbon atoms
-Sodium alkylbenzene sulfonate: alkyl group having 12 to 16 carbon atoms
Sodium alkyl ether sulfate: polyoxyethylene (ethylene oxide average addition mole number 2.0) alkyl (carbon number 12 to 16) sodium ether sulfate polyoxyethylene alkyl ether: average ethylene oxide addition mole number 10, carbon of alkyl group Number 12-16
-Alkyl glycoside: alkyl (C10-16) polyglucose (average sugar condensation degree 1-2)
Alkylamidopropyl betaine: Fatty acid (carbon number 12) amidopropyl-N, N-dimethyl-acetic acid betaine Chelating agent: EDTA / citric acid = 4.3 (mass ratio) mixture

Claims (4)

(A) a polymer compound containing a structural unit (a1) represented by the following general formula (1) and a structural unit (a2) represented by the following general formula (2), (b) an alkyl having 8 to 8 carbon atoms 18) A hard surface cleaner containing dimethylbenzylammonium chloride and (c) water,
In the structural unit (a), the total of the structural unit (a1) and the structural unit (a2) is 80 to 100 mol%.
The molar ratio of the structural unit (a1) and the structural unit (a2) in (a) is 20 to 2.5 in (a1) / (a2),
(A) 0.01-5 mass%, (b) 0.01-10 mass%,
The mass ratio of (a) and (b) is (a) / (b) = 0.1 / 10 to 3 / 0.1.
Hard surface cleaner.

The cleaning agent for hard surfaces according to claim 1, which is for a hydrophobic hard surface made of a material selected from plastics, ceramics and metals. A method for treating a hard surface, wherein the hard surface cleaning agent according to claim 1 or 2 is applied to a hard surface to impart persistent hydrophilicity. The method for treating a hard surface according to claim 3 , wherein the hard surface is a hydrophobic hard surface made of a material selected from plastic, ceramics, and metal.