JP2009108184A - Bactericidal detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bactericidal detergent composition having excellent foamability, bactericidal effects on thermoduric spore-forming bacteria, and effects for removing organic stain, and preventing corrosion on aluminum. <P>SOLUTION: The bactericidal detergent composition contains (a) 0.1-5 mass% of a polyhexamethyleneguanidine salt, (b) 0.5-3 mass% of a silicate, (c) 1-10 mass% of an alkylene oxide adduct of a secondary alcohol, obtained by adding 5-7 mol of a 2-4C alkylene oxide to a 12-24C secondary alcohol, and (d) 1-10 mass% of an alkylene oxide adduct of a primary alcohol, obtained by adding 4-20 mol of a 2-4C alkylene oxide to a 6-8C primary alcohol. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sterilizing detergent composition.

  In factories such as food processing and cleaning facilities, a wide range of cleaning and sterilization of machines and equipment (floor / wall) used is widely adopted because of its simplicity and high cleaning effect. It has been.

  However, since what is attached to the processing equipment is not only dirt due to organic matter but also bacteria, particularly heat-resistant spore-forming bacteria, an effective cleaning agent that can completely remove these dirt and bacteria has been desired. .

  In addition, because it cleans a very wide variety of machines and equipment, it must also consider the effect on the object to be cleaned, and it does not erode aluminum, which is often used in food processing machines. It is important that

  As a sterilizing detergent composition having both sterilizing performance and cleaning performance, a sterilizing agent selected from a cationic sterilizing agent, a biguanide sterilizing agent and an amino acid sterilizing agent, an alkali agent not containing silicic acid, a nonionic surfactant, an amphoteric interface A sterilizing detergent composition containing an activator and a metal chelating agent has been proposed (see Patent Document 1: Japanese Patent Application Laid-Open No. 2004-315691). However, the biguanide fungicide has a problem that it is not suitable for foam cleaning because of the risk of sensitization.

  In addition, it has a high bactericidal effect against heat-resistant spore-forming bacteria, and a polyhexamethylene guanidine salt as a bactericidal agent with high safety, combined with nonionic surfactant, fatty acid alkylolamide ethylene oxide adduct, and enzyme A disinfecting detergent has been proposed (Patent Document 2: Japanese Patent Application Laid-Open No. 2002-47111). However, a composition containing polyhexamethylene guanidine salt is insufficient in foaming, and even if a bactericidal effect against heat-resistant spore-forming bacteria is obtained, it is necessary to remove strong organic matter adhering to food processing equipment. Detergency was insufficient.

  From the above, there has been a demand for a bactericidal detergent composition that has excellent foamability, has a bactericidal effect on heat-resistant spore-forming bacteria and an organic soil removal effect, and prevents erosion on aluminum.

JP 2004-315691 A JP 2002-47111 A

  The present invention has been made in view of the above circumstances, and provides a bactericidal detergent composition that has excellent foaming properties, has a bactericidal effect on heat-resistant spore-forming bacteria and an organic matter removing effect, and prevents erosion to aluminum. Objective.

  As a result of intensive studies to achieve the above object, the present inventor has used (a) polyhexamethylene guanidine salt having high safety, (b) silicate, and (c) addition of a specific secondary alcohol alkylene oxide. And (d) specific primary alcohol alkylene oxide adducts are used in specific amounts to solve the problem of poor foaming due to the blending of polyhexamethylene guanidine salt. In addition to being able to apply bulky and fine foam, and retaining the foam for a long time, not only an excellent bactericidal effect against heat-resistant spore-forming bacteria, but also an excellent removal effect against organic dirt can be exhibited. It has been found that it is possible to further prevent erosion of aluminum, and has led to the present invention.

Therefore, the present invention
[1]. (A) 0.1 to 5% by mass of a polyhexamethylene guanidine salt,
(B) 0.5-3 mass% silicate,
(C) 1 to 10% by mass of a secondary alcohol alkylene oxide adduct obtained by adding 5 to 7 moles of an alkylene oxide having 2 to 4 carbon atoms to a secondary alcohol having 12 to 24 carbon atoms, and (d) the number of carbon atoms. 1 to 10% by mass of a primary alcohol alkylene oxide adduct in which 4 to 20 moles of alkylene oxide having 2 to 4 carbon atoms is added to 6 to 8 primary alcohol.
A sterilizing detergent composition containing,
[2]. The disinfectant cleaning composition according to [1], which is for foam cleaning, is provided.

  ADVANTAGE OF THE INVENTION According to this invention, it is excellent in foamability, and while having the bactericidal effect with respect to a heat-resistant spore formation microbe and an organic-smudge removal effect, the bactericidal cleaning composition which prevents the erosion with respect to aluminum can be provided.

  The component (a) of the present invention is a polyhexamethylene guanidine salt, which can be used alone or in combination of two or more. Polyhexamethylene guanidine salt is highly safe and has a bactericidal effect not only on bacteria with relatively low drug resistance, such as Escherichia coli, but also on heat-resistant spore-forming bacteria with high drug resistance such as Bacillus subtilis. It is what you have.

  Although it does not specifically limit as a polyhexamethylene guanidine salt, A phosphate is preferable. Examples of the polyhexamethylene guanidine phosphate include those represented by the following general formula (1), and may be block polymerization or random polymer.

（式中、ｍ＋ｎは３〜１２、ｍ／ｎは１〜２を示す。）

(In the formula, m + n represents 3 to 12, and m / n represents 1 to 2.)

  (A) The compounding quantity of a component is 0.1-5 mass% in a disinfection cleaning composition, Preferably it is 0.5-2 mass%, More preferably, it is 0.5-1 mass%. If it is less than 0.1% by mass, the bactericidal effect is lowered, and even if it is added in an amount of more than 5% by mass, the bactericidal effect is not improved and cost merit cannot be obtained.

The component (b) of the present invention is a silicate, and both anhydrides and hydrates can be used, and one kind can be used alone, or two or more kinds can be used in appropriate combination. Examples of the silicate include those represented by M ₂ O.nSiO ₂ (wherein M is sodium or potassium, and n is the number of moles of SiO ₂ ), and a hydrate may be used. Specific examples include sodium metasilicate, potassium metasilicate, No. 1 sodium silicate, No. 1 potassium silicate, No. 2 sodium silicate, No. 2 potassium silicate, sodium orthosilicate, potassium orthosilicate, and the like. As the number of moles of SiO ₂ increases, the corrosion inhibition effect on aluminum tends to improve. As the number of moles decreases, the alkalinity increases and the cleaning effect improves, so that n = 1 sodium metasilicate and potassium metasilicate preferable.

  (B) The compounding quantity of a component is 0.5-3 mass% in a disinfection cleaning composition, Preferably it is 0.5-1.5 mass%. If it is less than 0.5% by mass, the effect of inhibiting corrosion against aluminum is lowered, and if it is added more than 3% by mass, the storage stability is deteriorated.

  The component (c) of the present invention is a secondary alcohol alkylene oxide adduct obtained by adding 5 to 7 moles of alkylene oxide having 2 to 4 carbon atoms to a secondary alcohol having 12 to 24 carbon atoms. Or two or more can be used in appropriate combination. As a secondary alcohol having 10 to 24 carbon atoms, for example, a secondary alcohol having 12 to 24 carbon atoms produced by paraffin oxidation (such as Softanol produced by Nippon Shokubai Co., Ltd.), produced by dimerization of alcohol. Gelbe type secondary alcohols having 12 to 24 carbon atoms, secondary alcohols having 12 to 24 carbon atoms produced by water addition reaction of long chain olefins, and the like. Among these, a secondary alcohol having 12 to 24 carbon atoms produced by oxidation of paraffin is preferable. The carbon number of the secondary alcohol is 10-24, preferably 10-18. When the number of carbon atoms is less than 10, the amount of interfacial adsorption such as fats and oils decreases, so that a sufficient cleaning effect cannot be obtained, and when the number of carbon atoms exceeds 24, the liquidity of the sterilizing detergent composition decreases.

  Examples of the alkylene oxide having 2 to 4 carbon atoms include ethylene oxide, propylene oxide, and butylene oxide. These may be used alone or as a mixture, but a mixture of ethylene oxide and propylene oxide is preferable, and ethylene oxide alone is more preferable.

  The added mole number of alkylene oxide is an average added mole, which is 5 to 7 moles. By adjusting the number of added moles of alkylene oxide, the cloud point in the sterilizing detergent composition can be brought close to the washing temperature, and the washing performance and foaming property for oil and fat stains can be controlled. When the number of added moles is less than 5 moles, the foamability is lowered, and when it exceeds 7 moles, the foamability is improved but the detergency is lowered.

  (C) The compounding quantity of a component is 1-10 mass% in a disinfection cleaning composition, Preferably it is 1-7 mass%, More preferably, it is 3-7 mass%. When the content is less than 1% by mass, the foaming performance and the cleaning effect are lowered, and even if blended in an amount of more than 10% by mass, there is no difference in effect and there is no cost merit.

  The component (d) of the present invention is a primary alcohol alkylene oxide adduct in which 4 to 20 moles of alkylene oxide having 2 to 4 carbon atoms is added to a primary alcohol having 6 to 8 carbon atoms. Or two or more can be used in appropriate combination. Examples of the primary alcohol having 6 to 8 carbon atoms include hexanol, octanol and 2-ethylhexanol, and 2-ethylhexanol is preferable.

  Examples of the alkylene oxide having 2 to 4 carbon atoms include ethylene oxide, propylene oxide, and butylene oxide. These may be used alone or as a mixture, but a mixture of ethylene oxide and propylene oxide is preferable, and ethylene oxide alone is more preferable.

  The added mole number of alkylene oxide is an average added mole, which is 4 to 20 moles, preferably 5 to 10 moles. By using this (d) component and (c) component together, it is thought that the foam film becomes strong and contributes to the improvement of the initial foaming performance. When the added mole number of the alkylene oxide is larger than 20 moles, the effect of improving the initial foaming property is lowered, and when the added mole number is less than 4 moles, the new oil property becomes too high and the surface activity is lowered.

  (D) The compounding quantity of a component is 1-10 mass% in a disinfection cleaning composition, Preferably it is 2-7 mass%, More preferably, it is 2-5 mass%. When the amount is less than 1% by mass, the initial foaming property is lowered, and even if the amount is more than 10% by mass, the foaming performance is not improved and there is no cost merit.

  In the sterilizing detergent composition of the present invention, an appropriate amount can be blended by appropriately combining one kind of optional components other than the above or two or more kinds within the range not impairing the effects of the present invention. For example, from the viewpoint of improving composition stability and cleaning performance, nonionic surfactants such as alkylglycosides, alkylpolyglycosides, alkylamine oxides, alkanolamines such as monoethanolamine, diethanolamine, and triethanolamine, ethylene glycol It is preferable to blend glycols such as propylene glycol, alkylene glycol solvents such as diethylene glycol monobutyl ether and diethylene glycol monophenyl ether, and metal ion sequestering agents such as sodium ethylenediaminetetraacetate, sodium citrate and sodium hydroxyiminodisuccinate. . From the viewpoint of broadening the antibacterial spectrum, it is also preferable to use a bactericidal component other than the component (a) such as a quaternary cationic surfactant and an amphoteric surfactant. In addition, known additives such as fragrances, pigments, and water can be appropriately blended.

  The sterilizing detergent composition of the present invention is produced by blending and mixing the above components (a) to (d), optional components, and water (remainder). The sterilizing detergent composition is preferably a uniform liquid at 25 ° C. The sterilizing detergent composition can be widely applied to a stock solution (100% by mass) to a 1% by mass aqueous solution in cleaning. The disinfectant cleaning composition of the present invention can be used for foam cleaning, and in this case, it is preferable to use a diluted solution of 5 to 20% by mass aqueous solution. The foam cleaning means a method of cleaning by foaming a liquid composition using a known foaming machine and attaching the foam to a wide range of objects to be cleaned.

  For foam cleaning using a foaming machine, for example, a dedicated foaming machine (such as a foam dispenser manufactured by Dibo) is used. A dilute aqueous solution of a sterilizing detergent composition is placed in the tank of the foaming machine, this diluted aqueous solution (temperature 25 ° C.) is extruded from the tank with compressed air, and the extruded aqueous solution and compressed air are mixed to form foam. Can be attached to the object to be cleaned, and a wide range of cleaning is possible. This foam adheres to and stays (10-20 minutes) on the (vertical) surface of a wide variety of machines / equipment, reacts with the dirt, lifts the dirt, and is rinsed clean with running water. Can do.

  EXAMPLES Hereinafter, although an Example and a comparative example are shown and this invention is demonstrated concretely, this invention is not restrict | limited to the following Example. In the following examples, unless otherwise specified, “%” in the composition indicates mass%, the ratio indicates the mass ratio, and the amount of each component in the table is an amount converted into a pure component.

[Examples 1 to 4, Comparative Examples 1 to 6]
Liquid sterilizing detergent compositions having the compositions shown in Tables 1 and 2 were prepared and evaluated as follows. The results are also shown in the table.

<Bactericidal effect>
After culturing Bacillus subtilis NBRC3134 and Escherichia coli (Escherichia coli NBRC3982) on an SCD agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.) at 35 ° C. for 24 hours, the resulting colonies were used with platinum ears. Was scraped off and mixed with sterilized saline (0.86% NaCl aqueous solution) to adjust the bacterial concentration to 10 ⁸ to 10 ⁹ cells / mL to obtain a bacterial solution.
A test solution was prepared by adding 0.5 mL of 3% BSA (bovine serum albumin) aqueous solution as a soil component to 4 mL of a 5% aqueous solution of a sterilizing detergent composition. After incubating at 20 ° C. for 10 minutes, 0.5 mL each was added and contacted with the test solution at 20 ° C. for 10 minutes. 0.1 mL of the test solution after contact was immediately inoculated into 10 mL of SCDLP medium (manufactured by Nippon Pharmaceutical Co., Ltd.) to inactivate the bactericidal detergent composition, and cultured as it was at 37 ° C. for 24 hours. The bactericidal effect was evaluated based on the following evaluation criteria based on the presence or absence of turbidity of the medium after the culture.
[Evaluation criteria]
○: No turbidity of medium (with bactericidal effect)
×: Medium turbidity (no bactericidal effect)

<Oil cleaning power>
A model dirty glass piece was prepared by the method described in JIS K3362 (Synthetic Detergent Test Method) Kitchen Detergent Detergency Evaluation Method. Next, a 10% aqueous solution of a sterilizing detergent composition is prepared in a 100 mL beaker, and the model glass piece prepared above is immersed for 1 hour to confirm the rolling-up phenomenon. The piece was rocked 5 times and then the glass piece was pulled up. The degree of dirt removal was visually evaluated based on the following evaluation criteria.
[Evaluation criteria]
A: The rolling-up phenomenon is confirmed, and the red oil stain is removed cleanly.
○: The rolling-up phenomenon is confirmed, and the removal of red oil stains is confirmed.
X: The rolling-up phenomenon cannot be confirmed, and the dirt is not removed.

<Foaming properties>
A 10% aqueous solution of a sterilizing detergent composition was prepared and added to a sprayer for toughener R manufactured by Lion Hygiene Co., Ltd. (foam cleaning trigger: application amount is about 0.85 mL per application). The amount of foam was measured with a 500 mL graduated cylinder when discharged 20 times with the foam spray cap set.

<Aluminum erosion>
An aluminum test piece (A1100, 1 × 25 × 75 mm) was immersed in a 10% aqueous solution of a sterilizing detergent composition for 24 hours. The change in the appearance after immersion was visually evaluated based on the following evaluation criteria.
[Evaluation criteria]
○: No change ×: Change

（１）炭素数１２〜１４の第２級アルコール、エチレンオキサイド（ＥＯ）５モル付加物（ソフタノール５０：日本触媒（株）製），ポリオキシエチレンアルキルエーテル
（２）炭素数１２〜１４の第２級アルコール、エチレンオキサイド（ＥＯ）７モル付加物（ソフタノール７０（日本触媒（株）製），ポリオキシエチレンアルキルエーテル
（３）２−エチルヘキサノール、エチレンオキサイド（ＥＯ）８モル付加物（ニューコール１００８：日本乳化剤（株）製），ポリオキシエチレン２−エチルヘキシルエーテル
（４）２−エチルヘキサノール、エチレンオキサイド（ＥＯ）４モル付加物（ニューコール１００４：日本乳化剤（株）製），ポリオキシエチレン２−エチルヘキシルエーテル
（５）２−エチルヘキサノール、エチレンオキサイド（ＥＯ）２０モル（ニューコール１０２０（日本乳化剤（株）製），ポリオキシエチレン２−エチルヘキシルエーテル

(1) Secondary alcohol having 12 to 14 carbon atoms, ethylene oxide (EO) 5 mole adduct (Softanol 50: manufactured by Nippon Shokubai Co., Ltd.), polyoxyethylene alkyl ether (2) No. 12 to 14 carbon atoms Secondary alcohol, ethylene oxide (EO) 7 mol adduct (Softanol 70 (made by Nippon Shokubai Co., Ltd.), polyoxyethylene alkyl ether (3) 2-ethylhexanol, ethylene oxide (EO) 8 mol adduct (Newcol) 1008: Nippon Emulsifier Co., Ltd.), polyoxyethylene 2-ethylhexyl ether (4) 2-ethylhexanol, ethylene oxide (EO) 4 mol adduct (New Coal 1004: manufactured by Nippon Emulsifier Co., Ltd.), polyoxyethylene 2-ethylhexyl ether (5) 2-ethylhexanol, ethylene oxide Id (EO) 20 mol (Newcol 1020 (manufactured by Nippon Emulsifier Co.), polyoxyethylene 2-ethylhexyl ether

（１）炭素数１２〜１４の第２級アルコール、エチレンオキサイド（ＥＯ）５モル付加物（ソフタノール５０：日本触媒（株）製），ポリオキシエチレンアルキルエーテル
（３）２−エチルヘキサノール、エチレンオキサイド（ＥＯ）８モル付加物（ニューコール１００８：日本乳化剤（株）製），ポリオキシエチレン２−エチルヘキシルエーテル
（６）炭素数１２〜１４の第２級アルコール、エチレンオキサイド（ＥＯ）３モル付加物
（ソフタノール３０：日本触媒（株）製），ポリオキシエチレンアルキルエーテル
（７）炭素数１２〜１４の第２級アルコール、エチレンオキサイド（ＥＯ）９モル付加物
（ソフタノール９０：日本触媒（株）製），ポリオキシエチレンアルキルエーテル

(1) Secondary alcohol having 12 to 14 carbon atoms, ethylene oxide (EO) 5-mole adduct (Softanol 50: manufactured by Nippon Shokubai Co., Ltd.), polyoxyethylene alkyl ether (3) 2-ethylhexanol, ethylene oxide (EO) 8 mol adduct (Newcol 1008: manufactured by Nippon Emulsifier Co., Ltd.), polyoxyethylene 2-ethylhexyl ether (6) secondary alcohol having 12 to 14 carbon atoms, ethylene oxide (EO) 3 mol adduct (Softanol 30: manufactured by Nippon Shokubai Co., Ltd.), polyoxyethylene alkyl ether (7) secondary alcohol having 12 to 14 carbon atoms, 9 moles of ethylene oxide (EO) adduct (Softanol 90: manufactured by Nippon Shokubai Co., Ltd.) ), Polyoxyethylene alkyl ether

The raw materials used in Examples and Comparative Examples are shown below.
Polyhexamethylene guanidine phosphate (Amorden DS-25L: manufactured by Daiwa Chemical Industries), active ingredient 25%, polyhexamethylene guanidine phosphate satisfying general formula (1) (m + n = 6 to 12), weight average molecular weight 1677
Sodium metasilicate (metasilicate sodium (pentahydrate): manufactured by Nippon Chemical Industry Co., Ltd., active ingredient 57.5%)
Sodium carbonate (reagent grade 1: manufactured by Junsei Chemical Co., Ltd.)
Propylene glycol (Reagent grade 1: manufactured by Pure Chemical Co., Ltd.)
Diethylene glycol monobutyl ether (Butyl diglycol: manufactured by Nippon Emulsifier Co., Ltd.)
Didecyldimethylammonium chloride (Arcard 210-80E: Lion Corporation), active ingredient 80%)
Monoethanolamine (2-aminoethanol, reagent grade 1: manufactured by Junsei Chemical Co., Ltd.), active ingredient 98.5%

Claims (2)

(A) 0.1 to 5% by mass of a polyhexamethylene guanidine salt,
(B) 0.5-3 mass% silicate,
(C) 1 to 10% by mass of a secondary alcohol alkylene oxide adduct obtained by adding 5 to 7 moles of an alkylene oxide having 2 to 4 carbon atoms to a secondary alcohol having 12 to 24 carbon atoms, and (d) the number of carbon atoms. 1 to 10% by mass of a primary alcohol alkylene oxide adduct in which 4 to 20 moles of alkylene oxide having 2 to 4 carbon atoms is added to 6 to 8 primary alcohol.
A sterilizing detergent composition containing   The sterilizing detergent composition according to claim 1, which is for foam cleaning.