JP2008260799A - Bacteria-removing detergent composition and method of bacteria-removing cleaning by using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bacteria-removing detergent composition having an excellent cleaning property and bacteria-removing property in the foam-cleaning of the outside surface of production equipment such as a food or beverage-producing apparatus, a filling machine, a preparation tank, etc., used in a food-processing factory, beverage factory, beer factory, etc. and a conveying conveyer, floor, etc., and also forming a foamed state having a high foam-holding property on a perpendicular surface to be cleaned, and a method of bacteria-removing cleaning by using the same. <P>SOLUTION: This bacteria-removing detergent composition comprises (a) 0.1 to 5 mass% alkylamine oxide, (b-1) an alkyltrimethylammonium halide, (b-2) an alkylpyridinium halide and/or an alkylbenzalkonium halide, (c) 0.5 to 10 mass% aromatic sulfonic acid or its salt, (d) the residual amount of water, (e) 1 to 10 mass% lower alkyl glycol ether and (f) 1 to 10 mass% alkaline agent, wherein the total amount of components (b-1) and (b-2) is 0.1-10 mass% and the composition is free of a thickening component. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to sterilization used for foam cleaning of outer surfaces of food and beverage production equipment, filling machines, blending tanks, etc. used in food processing factories, beverage factories, beer factories, etc. Relates to a cleaning agent.

  Conventionally, as a foaming detergent for the outer surface of a production facility of a food factory, a combination of an alkylamine oxide and an anionic surfactant has been often used.

  For example, in Patent Document 1, 1 part by weight of a quaternary ammonia compound, 0.01 to 100 parts by weight of an amine oxide, and one or more selected from a sulfonate composition, a salicylic acid composition, and a tosylate compound In an aqueous medium, 0.1 to 3 wt% of the rod-like micellar thickener composition and 0.2 ppm to lower alkyl glycol ether solvent 4 wt%, alkalinity source 0.01 to 10 wt%, hardness sequestering agent 0.2 ppm to 3 wt% added, viscosity (Brookfield viscometer, 21 ° C., No. C1 spindle, 60 rpm) Disclosed is a concentrated hard surface cleaner capable of removing burnt and hard dirt from a vertical or inclined surface characterized by being 20 cp or more That.

  Patent Document 2 was selected from 0.1 to 12% by weight of an alkalinity source containing an alkali (earth) hydroxide, a vinyl acetal monomer, a vinyl acetate monomer, a vinyl alcohol monomer, a vinyl chloride monomer, and the like. 0.15 to 10% by weight of a vinyl polymer emulsion for obtaining an adhesive foam obtained by (co) polymerizing one or more monomers, and anionic, cationic and amphoteric as necessary , 1 or 2 or more surfactants selected from nonionic surfactants and 0.00005 to 1.0% by weight of water and water are blended to obtain a foam composition having a pH of 6.5 or more. An alkaline foam surface cleaning agent obtained by adding 0.50 to 20.0% by weight of an alkaline cleaning agent to this foam composition is disclosed.

  Furthermore, Patent Document 3 discloses a basic composition comprising an organic solvent having an interfacial tension of 0.1% by weight in an aqueous solution at 20 ° C., an organic solvent having a surface tension of 70 dyn / cm or less, a surfactant such as a nonionic surfactant, a disinfectant, and water. Disinfectant composition comprising a component, and further, a hydrotrope, a chelating agent, and an alkali agent, and a method of using the composition, and cleaning of hard surfaces such as kitchens, workplace tiles or metal walls, floors, etc. It has been disclosed that it has excellent sterilization performance, foam stability and foam retention performance, and sterilization performance.

  However, these cleaning agents have high foaming properties, but the foam is heavy and drops easily from the vertical surface to be cleaned. The contact time between the surface to be cleaned and the foamed cleaning liquid is short, and sufficient cleaning is possible. And there was a problem that sterilization could not be performed.

In addition, a large amount of bubbles dropped on the floor is difficult to rinse, and there is a problem that workability is poor.
Furthermore, since the amount of cleaning agent and cleaning water used is large, the cleaning cost is high and the load during drainage is also increasing.

Moreover, even when the above-described foam retention is improved, there is no satisfactory foam retention, sterilization, and detergency, and there is no one that can handle light metals such as aluminum.
Japanese National Patent Publication No. 8-510772 Japanese translation of PCT publication No. 8-510770 Japanese Patent Laid-Open No. 10-330792

  An object of the present invention is to provide a disinfectant detergent composition having good detergency and disinfectability. Another object of the present invention is to provide a disinfectant cleaning composition that has good foam retention with respect to a vertical surface to be cleaned, good cleanability and disinfectability, and can handle aluminum materials. There is.

  As a result of intensive studies to achieve the above object, the present inventor has used an alkyltrimethylammonium halide together with a specific quaternary ammonium salt and an aromatic sulfonate, and further uses an alkylamine oxide in combination. Thus, a sterilizing detergent composition having good foam retention with respect to a vertical surface to be cleaned and good detergency and sterilization properties was obtained.

  That is, the present invention relates to (a) 0.1 to 5% by mass of alkylamine oxide, (b-1) alkyltrimethylammonium halide, (b-2) alkylpyridinium halide and / or alkylbenzalkonium halide, (c ) 0.5-10% by weight of aromatic sulfonic acid or salt thereof, (d) remaining weight% of water, (e) 1-10% by weight of lower alkyl glycol ether, (f) 1-10% of alkali agent %, Respectively, and the total amount of the component (b-1) and the component (b-2) is 0.1 to 10% by mass, and does not contain a thickening component. Agent composition.

Moreover, this invention is said disinfectant | cleaning-agent composition characterized by the alkylamine oxide of (a) component having a C10-C18 alkyl group or alkylene group.
Moreover, this invention is said disinfectant cleaning composition characterized by the alkyltrimethylammonium halide of (b-1) component having a C10-C18 alkyl group or alkylene group. .
Further, the present invention provides the sterilization as described above, wherein the alkylpyridinium halide and / or alkylbenzalkonium halide as the component (b-2) has an alkyl group or alkylene group having 12 to 18 carbon atoms. Cleaning composition.
Further, the present invention is characterized in that the aromatic sulfonic acid of component (c) or a salt thereof is at least one selected from meta-xylene sulfonic acid, paratoluene sulfonic acid, cumene sulfonic acid and salts thereof, It is said disinfectant cleaning composition.
Moreover, this invention is said disinfectant | cleaning agent composition used for a foam cleaning use.
Further, the present invention provides a step of diluting the sterilizing detergent composition with water to a concentration of 0.5 to 10% by mass to prepare a detergent diluent, The surface to be cleaned is sterilized and cleaned, including a step of spraying 300 to 1500 ml of a cleaning agent diluent in a foam using a foaming device, a step of leaving for a predetermined time, a step of rinsing with water, and a step of drying as necessary. Is the method.

  According to the present invention, (a) an alkylamine oxide, (b-1) an alkyltrimethylammonium halide, (b-2) an alkylpyridinium halide and / or an alkylbenzalkonium halide, (c) an aromatic sulfonic acid or a salt thereof (D) Water, (e) Lower alkyl glycol ether, and (f) Alkali agent are mix | blended in a specific ratio, and the disinfectant | cleaning agent composition with favorable washing | cleaning property and disinfection property can be provided.

  In addition, the cleaning composition of the present invention forms a foamed state with high foam retention, and can increase the cleaning time and sterilization performance by increasing the contact time between the dirt and the cleaning liquid. And since the amount of foam falling on the floor is small, the rinsing workability is improved, and further, the use of cleaning agents and cleaning water is reduced, so that the cleaning cost and the wastewater treatment load are reduced. .

Next, the best mode for carrying out the present invention will be described in detail.
The disinfectant cleaning composition of the present invention includes food and beverage production equipment used in food processing factories, beverage factories, and beer factories, outer surfaces of production equipment such as filling machines and blending tanks, conveyors for conveyance, floors, etc. Can be used for foam cleaning.

  Examples of the alkylamine oxide which is the component (a) used in the present invention include alkylamine oxides having an alkyl group having 10 to 18 carbon atoms or an alkylene group, and in particular, from the viewpoint of thickening the diluent. Alkylamine oxide having an alkyl group having 14 to 18 carbon atoms or an alkylene group is preferred, and in particular, myristylalkylamine oxide is preferably used from the viewpoint of foam retention at the time of foam washing. These may be used alone or in combination of two or more.

  (A) The alkylamine oxide of a component is mix | blended in the range of 0.1-5 mass% in this disinfectant cleaning composition. If it is less than 0.1% by mass, the cleaning property and storage stability may be poor, and if it exceeds 5% by mass, it may be disadvantageous in terms of economy. In particular, from the viewpoint of detergency, it is preferably blended in the range of 0.5 to 3% by mass.

  Examples of the alkyltrimethylammonium halide (b-1) used in the present invention include alkyltrimethylammonium halides having 10 to 18 carbon atoms. When the number of carbon atoms is less than 10 or more than 18, the foamability may be poor. Of these, alkyltrimethylammonium halides having 16 to 18 carbon atoms are preferred in terms of thickening of the diluted solution. Examples of the halide include chloride and bromide, and these may be used alone or in combination of two or more.

  Moreover, as an alkyl pyridinium halide which is a component (b-2) used for this invention, a C12-C18 alkyl pyridinium halide is mentioned. If the number of carbon atoms is less than 12 or exceeds 18, it may not be preferable in terms of sterilization. Of these, alkylpyridinium halides having 14 to 16 carbon atoms are preferred. Examples of the halide include chloride and bromide, and these may be used alone or in combination of two or more.

  Moreover, as an alkyl benzalkonium halide which is (b-2) component used for this invention, a C12-C18 alkyl benzalkonium halide is mentioned. If the number of carbon atoms is less than 12 or exceeds 18, it may not be preferable in terms of sterilization. Of these, alkylbenzalkonium halides having 12 to 16 carbon atoms are preferred. Examples of the halide include chloride and bromide, and these may be used alone or in combination of two or more.

  The combination of the component (b-1) and the component (b-2) used in the present invention includes (1) two combinations of alkyltrimethylammonium halide and alkylpyridinium halide, and (2) alkyltrimethylammonium halide and alkylbenza. There are two types of combinations with a ruthenium halide, (3) three types of combinations with an alkyltrimethylammonium halide, an alkylpyridinium halide, and an alkylbenzalkonium halide. A combination of a halide and an alkylbenzalkonium halide is preferred.

  The total amount of the component (b-1) and the component (b-2) is blended in the range of 0.1 to 10% by mass in the sterilizing detergent composition. If it is less than 0.1% by mass, the sterilizing property may be poor, and if it exceeds 10% by mass, it may be disadvantageous in terms of economy. In particular, it is preferable to blend in the range of 0.5 to 7% by mass from the viewpoint of sterilization.

  Examples of the aromatic sulfonic acid or salt thereof as component (c) used in the present invention include metaxylene sulfonic acid, paratoluene sulfonic acid, cumene sulfonic acid, and salts thereof. These salts are preferably sodium salts, potassium salts, ammonium salts, amine salts and the like. These may be used alone or in combination of two or more. Of these, sodium metaxylene sulfonate is preferably used from the viewpoint of thickening the diluted solution.

  The weight ratio of the component (b-1) and the component (b-2) used in the present invention is not particularly limited, but is usually 1:99 to 99: 1, preferably 10:90 to 90:10, more preferably Is 30: 70-85: 15.

  The aromatic sulfonic acid or salt thereof as the component (c) is blended in the range of 0.5 to 10% by mass in the sterilizing detergent composition. If the amount is less than 0.5% by mass, the thickening may be poor. If the amount exceeds 10% by mass, the diluted solution becomes a paste, which may not be preferable in terms of increasing the viscosity of the diluted solution. In particular, it is preferable to blend in the range of 2 to 7% by mass from the viewpoint of thickening the diluted solution.

  Examples of the water that is the component (d) used in the present invention include tap water, distilled water, pure water, and ion exchange water. These may be used alone or in combination of two or more. Of these, tap water and ion-exchanged water are preferably used from the viewpoint of economy and storage stability.

  In the sterilizing detergent composition, the water of component (d) is water contained in the form of crystal water or aqueous solution derived from each component constituting the sterilizing detergent composition, and other It is the total with water added from the outside, and the balance amount is blended so that the whole composition becomes 100% by mass.

  Examples of the (e) lower alkyl glycol ether used in the present invention include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, hexylene glycol, and isoprene glycol. These may be used alone or in combination of two or more. Of these, propylene glycol and hexylene glycol can be preferably used in terms of storage stability.

  The lower alkyl glycol ether as the component (e) is blended in the range of 1 to 10% by mass, preferably 3 to 8% by mass in the sterilizing detergent composition.

  Examples of the alkali agent (f) used in the present invention include ammonia, monoethanolamine, monoisopropanolamine, diethanolamine, dipropanolamine, triethanolamine, and tripropanolamine. These may be used alone or in combination of two or more. Of these, monoisopropanolamine is preferably used.

  The alkaline agent as the component (f) is blended in the range of 1 to 10% by mass, preferably 3 to 8% by mass in the sterilizing detergent composition.

  When (e) the lower alkyl glycol ether and (f) the alkali agent are combined, the combination of propylene glycol or hexylene glycol and monoisopropanolamine is particularly preferable.

  And the disinfectant cleaning composition of the present invention can contain a fragrance, a dye, a preservative, a metal corrosion inhibitor, a solubilizer, an antifoaming agent, a cloud point improver, etc., if necessary. .

  As the foaming apparatus used in the present invention, an apparatus having a function of pressurizing a cleaning solution and air is used, and an apparatus having a function of adjusting pressure and flow rate is particularly preferable.

  Examples of the foaming apparatus used in the cleaning method of the present invention include trade name “Surefoam F50” (manufactured by Daisan Industry Co., Ltd.), trade name “spray cart” (manufactured by Spraying System Co., Ltd.), and the like. “Sure Form F50” is preferably used from the viewpoints of safety and economy.

  The sterilization cleaning method of the present invention is a step of diluting the sterilizing cleaning composition with water to a concentration of 0.5 to 10% by mass to prepare a cleaning agent dilution, per square meter of the surface to be cleaned. This is a method including a step of spraying 300 to 1500 ml of the detergent diluent in a foam using a foaming device, a step of leaving for a predetermined time, and a step of rinsing with water. If necessary, a step of drying may be added after the step of rinsing with water, if necessary.

  If the concentration of the detergent diluent is less than 0.5% by mass, the desired detergency and sterilization may be poor, and if it exceeds 10% by mass, the detergency and sterilization may be poor. In addition to being saturated and not economical, it may be undesirable because the rinsing properties are reduced.

  In addition, if the amount of foam sprayed per square meter of non-cleaning surface is less than 300 ml, the cleaning and sterilizing properties may be poor, and if spraying over 1500 ml, it is disadvantageous in terms of economy. There is a case.

  In the present invention, the time for leaving the foam after blowing is not particularly limited, and examples thereof include 1 to 20 minutes.

  The water rinsing process of the present invention is usually performed by rinsing water from a fixed or movable spray nozzle. The rinsing water at this time may be tap water, soft water or the like, and tap water is usually used. Further, the water temperature at this time is not particularly limited, but is preferably about 25 to 40 ° C. in terms of rinsing efficiency.

  As a drying process to be added as necessary, natural drying, air blowing at a predetermined temperature may be blown dry, and heat drying may be performed as necessary.

  Hereinafter, examples will be described together with comparative examples. The present invention is not limited to the examples.

Regarding the disinfectant cleaning composition of the present invention, the compositions of Examples 1-42 and Comparative Examples 1-17 shown in Tables 1 to 5 below (the units of numerical values in each table are% by mass) are provided. Trial sterilizing detergent compositions were prepared and evaluated for six items of viscosity increase, foam retention, detergency, sterilization, influence on aluminum material, and storage stability of the detergent diluent.
The results are also shown in Tables 1 to 4 below. The test methods and evaluation criteria for each item are as shown below.

(1) Thickening of cleaning agent diluent [test method]
Prepare various detergent dilutions obtained by diluting the test disinfectant detergent composition with tap water, and measure the viscosity under the following measurement conditions using a torque meter (manufactured by Yamazaki Seiki Laboratories). The determination was made according to the following evaluation criteria.
Measurement conditions: Dilution concentration of sanitizing detergent composition: 3% by mass
Measurement temperature: 25 ° C
Measurement liquid volume: 1000ml
Rotating plate area: 56cm (8x7cm)
〔Evaluation criteria〕
○: Torque value is 25 g-cm or more Δ: Torque value is 20 or more and less than 25 g-cm x: Torque value is less than 20 g-cm, and ○ and Δ are determined to be practical.

(2) Foam retention [test method]
Using a foaming apparatus (product name: Surefoam F50, manufactured by Daisan Kogyo Co., Ltd.), a detergent diluent obtained by diluting the test sterilizing detergent composition to 3% by mass with water is as follows. The foam retention time was measured when an amount of about 500 to 750 ml per square meter was applied to a vertical stainless steel surface, and judged according to the following evaluation criteria.
Foaming condition: Air pressure: 4kg / cm2
Cleaning fluid pressure: 2kg / cm2
Diluent temperature: 25 ° C
〔Evaluation criteria〕
○: Bubbles held on the vertical surface for 3 minutes or more Δ: Bubbles held on the vertical surface for 2 minutes or more and less than 3 minutes ×: Bubbles on the vertical surface dropped in less than 2 minutes, and ○ and Δ were practical Judged.

(3) Detergency [Test method]
B) Preparation of test piece On a stainless steel plate (length 6 cm x width 5 cm), lard (trade name: pork fat (made by lard) / manufactured by Hayashi Chemical Co., Ltd.) as a dirt was adhered at about 1 g / cm ² , The test piece was heated for 3 hours with a constant temperature dryer (model: MOV212 / manufactured by Sanyo Electric Co., Ltd.) and allowed to cool at room temperature for 24 hours.
B) Cleaning operation Using a cleaning agent diluent obtained by diluting the test disinfectant cleaning composition to 3% by mass with water and a foaming device (trade name: “Surefoam F50”, manufactured by Daisan Industrial Co., Ltd.) The detergency was tested under the following foaming conditions and visually judged according to the following evaluation criteria.
Spray the diluted test solution at a rate of about 500 ml / m ² on the test piece placed vertically, leave it for 3 minutes, rinse with water, let it dry naturally for 1 hour, and then visually check the degree of dirt removal. Observed and judged according to the following evaluation criteria.
〔Evaluation criteria〕
○: Cleaning rate of 80% or more Δ: Cleaning rate of 50 to less than 80% ×: Cleaning rate: less than 50%, and ○ and Δ were determined to be practical.

(4) Bactericidal properties [test method]
Tested the sterilization ability of common detergents (E. coli, Pseudomonas aeruginosa, Staphylococcus aureus) of the detergent-diluted solution obtained by diluting the test sterilizing detergent composition to 3% by mass with the European standard test method EN1040 The determination was made according to the following evaluation criteria.
〔Evaluation criteria〕
◯: Decrease in the number of bacteria over 5 Log reduction Δ: Decrease in the number of bacteria with Log reduction of 4 or more and less than 5 ×: Decrease in the number of bacteria less than 4 Log reduction, and ◯ was judged as practical.

(5) Influence on aluminum material [test method]
To a cleaning agent diluted solution obtained by diluting the test disinfectant cleaning composition to 3% by mass with water, aluminum material test plate material: JISH4000A10P-24 (A250-H24) HB 1 mm (length 5 cm × width 4 cm × thickness 0. 3 cm) was immersed in an incubator (manufactured by Sumitomo Metals) at 20 ° C., and the surface state of the aluminum test plate after 24 hours was visually observed and judged according to the following evaluation criteria.
〔Evaluation criteria〕
◯: No change Δ: Slightly discolored and gloss slightly disappeared X: Discolored and gloss was lost, ○ and Δ were determined to be practical.

(6) Storage stability The test sterilizing detergent composition is placed in a low-temperature incubator (model: BITEC500 / manufactured by Shimadzu Corporation) set at 0 ° C., and the appearance of the composition after one month is visually observed. The determination was made according to the following evaluation criteria.
〔Evaluation criteria〕
○: No change Δ: Cloudy ×: Precipitation or liquid separation, and ○ was determined to be practical.

  The result of an Example is shown to Tables 1-3.

When the alkyltrimethylammonium halide (b-1) component, the specific quaternary ammonium salt (b-2) component and the aromatic sulfonate (c) component are used in combination, good thickening is observed, The combined use of the alkylamine oxide (a) component also improved the foam retention on the vertical surface.
In addition, good sterilization effects were observed against the general bacteria Pseudomonas aeruginosa and Staphylococcus aureus.

  The results of the comparative examples are shown in Tables 4 and 5.

When dialkyldimethylammonium was used as a quaternary ammonium compound and blended with an alkylamine oxide and an anionic sulfonate, the solution was insufficiently thickened (Comparative Example 7), and trimethylammonium as a quaternary ammonium compound. Bactericidal properties are insufficient with a single product (Comparative Examples 2 and 8).
Further, even when dialkyldimethylammonium and trimethylammonium are used in combination, a sufficient solution viscosity cannot be obtained (Comparative Example 9).
Further, when an alkali agent and a hardness sequestering agent were blended, material influence on light metals such as aluminum was observed (Comparative Examples 5 and 6).

Claims (7)

(A) 0.1-5 mass% of alkylamine oxide,
(B-1) alkyltrimethylammonium halide,
(B-2) alkylpyridinium halide and / or alkylbenzalkonium halide,
(C) 0.5 to 10% by mass of aromatic sulfonic acid or a salt thereof,
(D) water remaining mass%,
(E) 1 to 10% by mass of a lower alkyl glycol ether,
(F) 1 to 10% by mass of an alkaline agent,
Each containing
The total amount of the component (b-1) and the component (b-2) is 0.1 to 10% by mass,
And the disinfectant cleaning composition characterized by not containing a thickening component. The disinfectant cleaning composition according to claim 1, wherein the alkylamine oxide as component (a) has an alkyl group or alkylene group having 10 to 18 carbon atoms. The disinfectant cleaning composition according to claim 1 or 2, wherein the alkyltrimethylammonium halide as the component (b-1) has an alkyl group or an alkylene group having 10 to 18 carbon atoms. The alkylpyridinium halide and / or alkylbenzalkonium halide as the component (b-2) has an alkyl group or alkylene group having 12 to 18 carbon atoms, according to any one of claims 1 to 3. A disinfectant cleaning composition. The aromatic sulfonic acid or salt thereof as component (c) is at least one selected from meta-xylene sulfonic acid, paratoluene sulfonic acid, cumene sulfonic acid, and salts thereof, 5 to 4 The disinfectant cleaning composition according to any one of the above. The disinfectant cleaning composition according to any one of claims 1 to 5, which is used for foam cleaning. A step of diluting the sterilizing detergent composition according to any one of claims 1 to 6 with water to a concentration of 0.5 to 10% by mass to prepare a detergent diluent,
A step of spraying 300 to 1500 ml of the cleaning agent diluent in a foam using a foaming device per square meter to be cleaned;
A step of leaving for a predetermined time;
Rinsing process with water,
A method for disinfecting and cleaning the surface to be cleaned.