JP2010059296A - Cleanser composition for hard surface - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleanser composition for a hard surface having excellent sterilization performance and cleaning ability against a hard surface, further enabling a user to judge the presence of microorganisms immediately at the time of use. <P>SOLUTION: This cleanser composition for a hard surface comprises (a) hydrogen peroxide, (b) at least one acid agent selected from phosphoric acid, phosphonic acids and an organic carboxylic acid having 2-5 carboxy groups in the molecule, and (c) at least one surfactant selected from an amine oxide and nonionic surfactants, each in a ratio of a specified range, and has a pH of 2-5 at 25°C. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hard surface cleaning composition for toilets, bathrooms, sinks (kitchen sinks, etc.), and a hard surface cleaning method using the same.

In environments around water such as bathrooms, toilets, and kitchens, contamination and multiplication by bacteria are likely to occur. In recent years, people's awareness of disinfection and antibacterial activity around water has been increasing. For this reason, many household detergents not only appeal for sterilization performance, but there are very many products that appeal to antibacterials in toilet bowls, tiles, and clothing. A technique that promotes sterilization in an environment such as a bathroom, toilet, or kitchen is known, and Patent Document 1 can be referred to. Patent Document 2 can be referred to as a technique for foaming by combining two agents and cleaning using the physical action. Patent Document 3 can be referred to for a technique relating to a cleaning agent using a large amount of hydrogen peroxide. Moreover, as a composition applied to a textile product, Patent Document 4 describes a liquid bleach composition having a pH of 6.0 or less containing hydrogen peroxide and a predetermined amount of an acidic substance.
JP 2006-321989 JP 59-24798 JP-A-1-240600 JP-A-9-87676

  However, Patent Document 1 is a liquid sterilizing cleaning agent using caustic alkali and hypochlorite, and hypochlorous acid generates toxic chlorine gas when mixed with other acidic cleaners. Use with caution. In addition, since the two-component foaming detergent of Patent Document 2 must be kept from mixing during storage, a complicated container must be used. Further, Patent Document 3 contains a large amount of hydrogen peroxide, which is not safe for the user.

  As mentioned above, in recent years, people's awareness of hygiene has increased, and many products have been advertised that promote sterilization and antibacterial properties. However, it is not easy to confirm the presence of bacteria present in general households, and even if you use a product that appeals for sterilization, it is very difficult to confirm whether it is actually sterilized. It was difficult. For example, when using a method for confirming the location of bacteria in a stamp test or the like, not only is a complicated culture operation required, but it is also an operation that takes a long time to confirm and cannot be easily performed in a general household. .

  Moreover, although hydrogen peroxide is mix | blended with the bleaching composition including patent document 4, these are normally designed so that bleach performance may be exhibited by using with alkaline laundry detergent. It is not intended to be used alone. For example, Patent Document 4 of a bleaching composition discloses that the amount of 1/10 N-NaOH aqueous solution necessary to bring 1000 ml of a bleaching composition to pH 6.0 as an acidic substance is required to be 100 to 1000 ml. However, this is intended to satisfy the storage stability, and no mention is made of its own cleaning performance.

  Another function of hydrogen peroxide is known to be catalyzed by the enzyme catalase in bacteria cells and decompose to generate oxygen, but if the pH is too low, foaming is unlikely to occur, If the pH is too high, the stability of hydrogen peroxide is impaired.

  An object of the present invention is to provide a cleaning composition which itself has a sterilizing performance and has an excellent detergency on a hard surface, and further, a hard surface that can immediately determine the presence of microorganisms at the time of use. It is to provide a cleaning composition for the use.

  The present invention includes (a) hydrogen peroxide (hereinafter referred to as component (a)) 0.5 to 10% by weight, (b) phosphoric acid, phosphonic acids and organic carboxylic acid having 2 to 5 carboxyl groups in the molecule. At least one acid agent selected from: [hereinafter referred to as component (b)] 1.5 to 20% by weight, (c) at least one surfactant selected from amine oxides and nonionic surfactants [hereinafter, (Referred to as component (c)) relates to a hard surface cleaning composition containing 0.5 to 8% by weight and having a pH of 2 to 5 at 25 ° C.

  The present invention also relates to a method for cleaning a hard surface, wherein the hard surface cleaning composition of the present invention is cleaned by contacting the hard surface.

  ADVANTAGE OF THE INVENTION According to this invention, the cleaning composition which has sterilization performance in itself and has the outstanding cleaning power with respect to a hard surface is provided. The hard surface cleaning composition of the present invention can immediately determine the presence of bacteria by foaming when applied to a hard surface.

  The component (a) of the present invention is hydrogen peroxide. From the viewpoint of foamability, the content in the composition is 0.5 to 10% by weight, preferably 1 to 8% by weight, particularly preferably 2 to 5%. % By weight.

  The component (b) of the present invention is at least one acid agent selected from phosphoric acid, phosphonic acids, and organic carboxylic acids having 2 to 5 carboxyl groups in the molecule. Specific examples of phosphoric acid and phosphonic acid include etidronic acid. Examples of organic carboxylic acids having 2 to 5 carboxyl groups include citric acid, lactic acid, acetic acid, tartaric acid, succinic acid, malic acid and the like, and phosphoric acid and etidronic acid are particularly preferable from the viewpoint of hydrogen peroxide stability. preferable. From the viewpoint of cleaning performance, the content of the component (b) in the composition is 1.5 to 20% by weight, preferably 3 to 10% by weight, more preferably 4 to 8% by weight. Moreover, if the said requirement is satisfy | filled, an acidic substance does not need to be single and may be a combination of 2 or more types. That is, in order to obtain sufficient cleaning performance, the initial pH is 2 to 5, and the 1N-NaOH aqueous solution necessary for making 100 ml of the composition 25 pH at 25 ° C. is 12 ml or more. It is preferable to use a substance. That is, in the hard surface cleaning composition of the present invention, the 1N-NaOH aqueous solution necessary to bring the pH of 25 ° C. to 6 in 100 ml of the composition is preferably 12 ml or more.

The component (c) of the present invention is at least one surfactant selected from amine oxides and nonionic surfactants. Specific amine oxides include N-lauryl-N, N-dimethylamine oxide, N-myristyl-N, N-dimethylamine oxide, N-palmityl-N, N-dimethylamine oxide, lauroylaminopropyldimethylamine oxide. An amine oxide selected from among them is preferred. Among these, N-lauryl-N, N-dimethylamine oxide and N-myristyl-N, N-dimethylamine oxide are particularly preferable in terms of washing performance, sterilization performance, and foaming performance. In addition, as the nonionic surfactant, R ¹ —O— (R ² O) _n —H (R ¹ is a linear or branched hydrocarbon group having 10 to 18 carbon atoms, R ² is 1 to 1 carbon atoms) 3 hydrocarbon groups, preferably alkylene groups, n is the average number of moles added and is 1-20, preferably 5-15) nonionic surfactants, alkylglycosides, sorbitan fatty acid esters Etc. As the nonionic surfactant, polyoxyalkylene (2 to 3 carbon atoms) alkyl (10 to 18 carbon atoms) ether (alkylene oxide average added mole number 5 to 15) is preferable. The content of the component (c) in the composition is 0.5 to 8% by weight, preferably 1 to 6% by weight, more preferably 2 to 5% by weight, from the viewpoint of cleaning performance. Moreover, it is preferable that (c) component contains an amine oxide, and it is preferable that the ratio of the amine oxide in (c) component is 50 to 100 weight%, and also 75 to 100 weight%.

  The hard surface cleaning composition of the present invention is a liquid composition containing the above components (a) to (c) and water, preferably in the form of an aqueous solution, and has a pH of 2 to 5 at 5 ° C. In such a pH range, excellent foaming performance, sterilization performance, and cleaning performance can be obtained. Adjustment to such a pH can be achieved by adjusting the contents of the components (b) and (c), but it is also possible to finely adjust to the target pH using sodium hydroxide, potassium hydroxide or the like. Is possible.

  The hard surface cleaning composition of the present invention contains, in addition to the above-mentioned components, additives that are blended in ordinary hard surface cleaning agents within a range not impairing the effects of the present invention, such as perfumes and antibacterials. Agents, pigments, dyes and the like can be added.

  The hard surface cleaning composition of the present invention is used for cleaning hard surfaces. Further, the hard surface cleaning composition of the present invention is applied to a hard surface, preferably so as not to form bubbles on the hard surface. The presence of microorganisms can be easily recognized visually in the form of foam. That is, in the hard surface cleaning method using the hard surface cleaning composition of the present invention, when the composition in contact with the hard surface is foamed, microorganisms (such as bacteria) that produce catalase on the hard surface. Can be determined to exist. For this purpose, it is preferable that the hard surface cleaning composition of the present invention is brought into contact with the hard surface so as not to substantially foam (that is, substantially without foaming the composition).

  The method of using the hard surface cleaning composition of the present invention is not particularly limited, but as a specific method for avoiding foaming, from the tip of an elongated nozzle attached to a container, or a plurality of methods Examples thereof include a squeeze type for discharging from a hole and a mist type spray having a fine spray particle size.

  The specific hard surface that is the subject of the present invention is not particularly limited, but is preferably around the water where microorganisms are likely to propagate, particularly toilets, bathrooms, sinks, etc., more preferably used in toilets and bathrooms. It is desirable.

  The hard surface cleaning composition of the present invention is based on an acidic cleaning agent, and in a hard surface application, hydrogen peroxide, a specific acid agent, and a specific surfactant are blended in specific amounts, respectively. By setting the pH range, it is possible to obtain an effect that it is possible to determine the sterilization performance and detergency and the presence of bacteria, which are not present in the past.

  A hard surface cleaning composition was prepared using the components shown in Tables 1 and 2, and the tests shown below were conducted. The results are shown in Table 1.

[1] Evaluation of foaming property Weigh 2 mg of bovine liver catalase (CALBIOCHEM) into a round bottom test tube having a diameter of 1 cm and a length of 8 cm. To this, 1 ml of each test solution is added using a fixed volume micropipette (Pipetteman). The state of foaming was observed, and the ease of foaming immediately after, and the persistence of the foam after 2 minutes were measured according to the following criteria. Since foaming starts immediately (usually within 5 to 20 seconds), the state at that time is observed, and the state of the foam is confirmed again after 2 minutes. This result indirectly describes the degree of foaming when microorganisms that produce catalase are present when the hard surface cleaning composition is applied to a hard surface.
<Foaming evaluation criteria (immediately after)>
◎: Foaming immediately vigorously ○: Foaming vigorously △: Foaming gradually x: Almost no foaming <Foaming evaluation criteria (after 2 minutes)>
A: Sufficient amount of foam is maintained.
○: The amount of foam is considerably maintained.
Δ: Bubbles remain to some extent.
X: Almost no remaining.

[2] Sanitization test The Fair Trade Commission has proposed an additional or amendment to the Fair Competition Code regarding the disinfection labeling of kitchen detergents and residential detergents that has been applied for by the Detergent and Soap Fair Trade Council in September 2006. Certified on January 1 (Reference HP; {HYPERLINK "http://jsda.org/w/01_katud/a_sekken27.html#anchor02", http: //jsda.org/w/01_katud/a_sekken27.html# anchor02}). This test was also performed based on the method for sterilization activity testing of residential detergents and soap (revised on July 31, 2007).
<Evaluation criteria for sterilization test>
○; Satisfies evaluation criteria for both E. coli and S. aureus species.
Δ: Either E. coli or S. aureus satisfies the test standard.
×: Test criteria are not satisfied in both E. coli and S. aureus species.

[3] Inorganic dirt cleaning power test As a model of inorganic dirt, 1 g of calcium dihydrogen phosphate aqueous solution (concentration 2%) is uniformly applied to a 10 cm square black ceramic tile and dried to prepare a model contamination board. A detergency test was conducted. In the detergency test, a 5 mm square absorbent cotton soaked with 0.1 g of the test solution was allowed to stand on the above-mentioned model-contaminated plate in which the composition was fixed horizontally. After 1 minute, the absorbent cotton was fully used with ion-exchanged water. Rinse. After rinsing, gently remove the moisture from the place where you left it with a dry cloth. At that time, the detergency was evaluated according to the following evaluation criteria by measuring the condition of the place where the absorbent cotton was left still with the naked eye.
<Detergency evaluation criteria>
◯: Dirt is removed in 90% or more of the part to which the composition is adhered (the black color of the ceramic tiles can be confirmed).
(Triangle | delta): A stain | pollution | contamination is removed by 50% or more and less than 90% of the part to which the composition was made to adhere (the black color of the ceramic tile ground can be confirmed).
X: Dirt is removed in less than 50% of the part to which the composition is adhered (the black color of the pottery tile can be confirmed).

  In the table,% is% by weight. Polyoxyethylene lauryl ether is Emulgen 108 (HLB12.1) manufactured by Kao Corporation. The “1N-NaOH required amount” is the amount of 1N-NaOH aqueous solution necessary to bring 100 ml of the composition to a pH of 25 ° C. of 6.

Claims (5)

  (A) hydrogen peroxide 0.5 to 10% by weight, (b) at least one acid agent 1.5 to 5 selected from phosphoric acid, phosphonic acids and organic carboxylic acids having 2 to 5 carboxyl groups in the molecule 20% by weight, (c) Hard surface cleaning containing 0.5 to 8% by weight of at least one surfactant selected from amine oxides and nonionic surfactants and having a pH of 2 to 5 at 25 ° C. Agent composition.   A cleaning method for a hard surface, wherein the cleaning composition for hard surface according to claim 1 is cleaned by contacting the hard surface.   The hard surface cleaning method according to claim 2, wherein the hard surface cleaning composition is brought into contact with the hard surface so as not to be substantially foamed.   The method for cleaning a hard surface according to claim 2 or 3, wherein the hard surface is a hard surface of a toilet, a bathroom, or a sink.   The hard surface according to any one of claims 2 to 4, wherein the hard surface is washed while confirming that microbes producing catalase are present on the hard surface by foaming of the composition in contact with the hard surface. Cleaning method.