JP2018002859A - Detergent composition for removing and washing foreign matter of vegetables - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent composition for removing and washing a foreign matter of vegetables which makes foaming of a washing liquid appropriate, enhances defoaming property, and enhances detergency.SOLUTION: A detergent composition for removing and washing a foreign matter of vegetables contains a nonionic surface active agent (A) represented by expression (a): R-O-[(EO)/(AO)]-H and one or more fatty acids (B) selected from fatty acids having 8 to 24 carbon atoms and its salt. In formula (a), R is a straight chain or branched chain alkyl group having 8 to 24 carbon atoms, a straight chain or branched chain alkylene group having 8 to 24 carbon atoms or an alkylaryl group having 8 to 24 carbon atoms. EO represents an oxyethylene group, and x is the number of 1 to 30 representing the average repetition number of EO. AO represents an oxyalkylene group having 3 to 4 carbon atoms, and y is the number of 1 to 20 representing the average repetition number of AO. [(EO)/(AO)] shows that EO and AO may be randomly polymerized even when EO and AO are block polymerized, and the order of EO and AO is not determined.SELECTED DRAWING: None

Description

  The present invention relates to a detergent composition for removing foreign substances from vegetables.

In recent years, there are cut vegetables and fruits that are cut to the size of food and are stored and sold in containers (hereinafter, vegetables and fruits are collectively referred to as vegetables, and cut vegetables are sometimes referred to as cut vegetables). .
As a manufacturing method of cut vegetables, the following methods are mentioned, for example. First, the vegetables in the hall state are washed with running water (primary washing), and then the vegetables in the hole state or in half are immersed in a cleaning solution to remove foreign matters such as insects (secondary washing), and then the vegetables A method of cutting foods into eating sizes and washing the surfaces of the cut vegetables with a disinfectant or the like (bactericidal washing). Among these, in the secondary cleaning (foreign matter removal cleaning step), a method is proposed in which the foreign matter is lifted and separated by aeration of the cleaning solution in which the vegetables are immersed (blows air or the like into the cleaning water in the cleaning tank). (For example, Patent Document 1).

  In the secondary cleaning, a detergent composition containing a surfactant may be used in order to increase the wettability of vegetables and increase the ability to remove foreign substances (detergency). When the cleaning composition is used in the secondary cleaning, the wettability of the vegetable surface is increased, and the foreign matter attached to the surface is easily peeled off. The peeled foreign matter floats along with the bubbles generated by the surfactant. By removing the generated foam from the washing tank by airflow or the like, the foreign matter is discharged from the washing tank, and the foreign matter is prevented from reattaching to the vegetables.

JP 2012-34638 A

By the way, in the said secondary washing | cleaning, in order to remove the foreign material adhering to vegetables, the physical force is provided to vegetables by aeration. In recent years, in order to further improve the cleaning power, there is a tendency to increase the aeration function of the cleaning device (increase the blowing amount of air or the like per unit time).
However, when vegetables are washed with a conventional cleaning composition using a cleaning device with an enhanced aeration function, the amount of foam increases significantly and the amount of foam overflowing from the cleaning tank increases. In addition, since the bubbles generated by washing vegetables are difficult to disappear, there is a problem that a large amount of bubbles overflowing from the washing tank stays on the floor of the work place for a long time.
On the other hand, if the foaming power of the cleaning composition is simply reduced (that is, foam is not generated), the foreign matter cannot be removed together with the foam, and the problem of reattachment of the foreign matter to the vegetables occurs. There is.
For this reason, the detergent composition used in the cleaning process in which such foreign matters are removed from the vegetables by aeration is required to be appropriately foamed and the generated foam to easily disappear (defoaming property).
Then, this invention aims at the cleaning composition for foreign material removal washing | cleaning of vegetables which has favorable detergency, is moderately foamed, and is excellent in defoaming property.

In order to solve the above-mentioned problems, the present inventors have intensively studied, and as a result, have found that even when vegetables are washed using a washing device having a high aeration function, a specific nonionic surfactant produces appropriate bubbles. Obtained. In addition, the present inventors have found that vegetable juice that oozes from the cuts of vegetables during washing promotes the generation of bubbles, making defoaming more difficult, and a specific fatty acid (salt) is used for the defoaming. The inventors have found that use in combination with the specific nonionic surfactant is specifically effective, solved the above problems, and completed the present invention.
That is, this invention has the following aspects.
[1] Vegetables containing a nonionic surfactant (A) represented by the following formula (a) and one or more fatty acids (salts) (B) selected from fatty acids having 8 to 24 carbon atoms and salts thereof. A cleaning composition for removing foreign substances.
R—O — [(EO) _x / (AO) _y ] —H (a)
[In the formula (a), R represents a linear or branched alkyl group having 8 to 24 carbon atoms, a linear or branched alkylene group having 8 to 24 carbon atoms, or an alkylaryl group having 8 to 24 carbon atoms. It is. EO represents an oxyethylene group, and x is a number of 1 to 30 representing the average number of repetitions of EO. AO represents an oxyalkylene group having 3 to 4 carbon atoms, and y is a number of 1 to 20 representing the average number of AO repeats. [(EO) _x / (AO) _y ] indicates that EO and AO may be block polymerized or randomly polymerized, and the order of EO and AO is not limited. ]
[2] [(EO) _x / (AO) _y ] in the formula (a) is a vegetable according to [1], wherein (EO) _x and (AO) _y are block-polymerized in this order. A cleaning composition for removing foreign substances.
[3] The cleaning agent for removing foreign matter from vegetables according to [1] or [2], wherein the mass ratio represented by the component (A) / component (B) is 0.1 to 40 Composition.
[4] One or more solvents selected from monohydric alcohols having 2 to 4 carbon atoms, polyhydric alcohols having 2 to 12 carbon atoms, glyceryl ethers having 4 to 12 carbon atoms, and glycol ethers having 3 to 12 carbon atoms. A cleaning composition for removing foreign matter from vegetables according to any one of [1] to [3], which contains (C).
[5] The content of the component (A) in 100% by mass of the detergent composition for removing foreign substances from vegetables is 0.1 to 20% by mass, according to any one of [1] to [4] The cleaning composition for foreign substance removal washing | cleaning of description.
[6] The content of the component (B) in 100% by mass of the detergent composition for removing foreign substances from vegetables is 0.01 to 10% by mass, according to any one of [1] to [5] The cleaning composition for foreign substance removal washing | cleaning of description.
[7] The content of the component (C) in 100% by mass of the detergent composition for removing foreign substances from vegetables is 0.1 to 30% by mass, according to any one of [1] to [6] The cleaning composition for foreign substance removal washing | cleaning of description.

[8] A vegetable foreign matter removing and cleaning method, wherein a vegetable cleaning solution containing the cleaning composition for cleaning foreign matter removal of vegetables according to any one of [1] to [7] is brought into contact with vegetables.
[9] The vegetable foreign matter removal cleaning method according to [8], wherein the vegetable foreign matter removal cleaning is performed by aeration in the cleaning liquid containing the vegetable.

  According to the cleaning agent composition for removing foreign substances from vegetables according to the present invention, it has good detergency, moderate foaming and excellent defoaming properties.

It is a schematic diagram which shows an example of the washing | cleaning apparatus used for the foreign material removal cleaning method of the vegetables of this invention.

(Cleaning composition for removing foreign substances from vegetables)
The cleaning composition for removing foreign substances from vegetables according to the present invention (hereinafter sometimes simply referred to as a cleaning composition) contains the components (A) to (B).
The dosage form of the cleaning composition of the present invention may be liquid or solid.
The liquid detergent composition (liquid detergent) may be a one-component type in which the components (A) to (B) are mixed in the dispersion medium, or the first liquid agent containing the component (A) and (B) A two-component type composed of a second liquid agent containing a component may be used.
Examples of the solid cleaning composition (solid cleaning agent) include powders and tablets.
Alternatively, the cleaning composition may be a combination of the first liquid agent containing the component (A) and the second solid agent containing the component (B).
Since it is easy to use, the dosage form is preferably a one-part liquid.

<(A) component>
The component (A) is a nonionic surfactant represented by the following formula (a).
R—O — [(EO) _x / (AO) _y ] —H (a)
[In the formula (a), R represents a linear or branched alkyl group having 8 to 24 carbon atoms, a linear or branched alkylene group having 8 to 24 carbon atoms, or an alkylaryl group having 8 to 24 carbon atoms. It is. EO represents an oxyethylene group, and x is a number of 1 to 30 representing the average number of repetitions of EO. AO represents an oxyalkylene group having 3 to 4 carbon atoms, and y is a number of 1 to 20 representing the average number of AO repeats. [(EO) _x / (AO) _y ] indicates that EO and AO may be block polymerized or randomly polymerized, and the order of EO and AO is not limited. ]

  (A) In formula, R is a linear or branched alkyl group, a linear or branched alkylene group, or an alkylaryl group. Among these, R is preferably a linear or branched alkyl group.

  The carbon number of R is 8 to 24, preferably 8 to 18, and more preferably 9 to 12. If the carbon number is within the above range, the detergent composition exhibits good detergency and foams appropriately.

In the formula (a), EO represents an oxyethylene group, and x represents the average number of EO repeats (that is, the average number of moles of ethylene oxide added).
(A) In formula, x is a number of 1-30, 5-15 are preferable and 6-10 are more preferable. If x is in the above range, the detergent composition exhibits good detergency and foams appropriately.

(A) In the formula, AO represents an oxyalkylene group having 3 to 4 carbon atoms (that is, oxypropylene group or oxybutylene group), and y is the average number of repeating AOs (that is, the average number of added moles of alkylene oxide). Represents.
(A) In the formula, y is a number of 1 to 20, and when AO is an oxypropylene group (PO), 2 to 10 is preferable, and 3 to 9 is more preferable. When AO is an oxybutylene group (BO), 1-5 are preferable and 1-2 are more preferable. If y is equal to or greater than the above lower limit value, foaming is more moderate, and if y is equal to or less than the upper limit value, the biodegradability is excellent. Note that (AO) _y may be a mixture of PO and BO. Moreover, in order to obtain moderate foaming, it is more preferable to contain BO.

(A) EO and AO in [(EO) _x / (AO) _y ] in the formula may be block polymerized or random polymerized. Moreover, the order of EO and AO is not ask | required. [(EO) _x / (AO) _y ] is preferably such that (EO) _x and (AO) _y are block-polymerized in this order. That is, [(EO) _x / (AO) _y ] is preferably-(EO) _x- (AO) _y- . By such block polymerization, the detergent composition foams more appropriately.
These (A) components may be used individually by 1 type, and may be used in combination of 2 or more type.

  If content of (A) component with respect to 100 mass% of cleaning composition is a liquid cleaning agent, 0.1-20 mass% is preferable, 0.5-10 mass% is more preferable, 1-5 mass% Is more preferable. If it is the said preferable range, when the dosage form of a cleaning composition is made into a liquid, it will become easy to become uniform transparency in which a cleaning composition does not produce isolation | separation.

<(B) component>
The component (B) is one or more fatty acids (salts) selected from fatty acids having 8 to 24 carbon atoms and salts thereof. The detergent composition can exhibit excellent defoaming properties by containing the component (B).

  (B) Carbon number of a component is 8-24, and 8-16 are preferable. If it is in the said range, the further improvement of defoaming property can be aimed at.

The component (B) is represented by the following formula (b).
R ¹ COOX (b)
[In the formula (b), R ¹ is a hydrocarbon group having 7 to 23 carbon atoms. X is a hydrogen atom or a counter ion. ]

In the formula (b), R ¹ may be a saturated hydrocarbon group or an unsaturated hydrocarbon group, and among them, a saturated hydrocarbon group is preferable. If it is a saturated hydrocarbon group, the cleaning composition can exhibit more excellent defoaming properties.
R ¹ may be linear or branched.
R ¹ has 7 to 23 carbon atoms, preferably 7 to 15 carbon atoms. If it is in the said range, the further improvement of a defoaming property can be aimed at.
X is hydrogen or a counter ion. Examples of the counter ion include alkali metal ions such as sodium ion and potassium ion; cations derived from triethanolamine, among which alkali metal ion is preferable, and potassium ion is preferable.
(B) As a component, lauric acid, myristic acid, a coconut-derived fatty acid, or these potassium salts are preferable.
These (B) components may be used individually by 1 type, and may be used in combination of 2 or more type.

  If content of (B) component with respect to 100 mass% of cleaning composition is a liquid cleaning agent, 0.01-10 mass% is preferable, 0.1-5 mass% is more preferable, 0.1-3 More preferred is mass%. If it is the said preferable range, when the dosage form of a cleaning composition is made into a liquid, it will become easy to become uniform transparency in which a cleaning composition does not produce isolation | separation.

  0.1-40 are preferable and, as for mass ratio (A / B ratio) represented by (A) component / (B) component, 1-20 are more preferable. If A / B ratio is more than the said lower limit, moderate foaming will be easy to be obtained, and if it is below the said upper limit, defoaming property will become more favorable.

<(C) component>
The cleaning composition may contain a solvent (C) (hereinafter referred to as component (C)). By containing the component (C), when the cleaning composition is a liquid composition, the components (A) to (B) are well dispersed in the dispersion medium and are unlikely to cause precipitation or separation (that is, Excellent liquid stability).

(C) A component is 1 or more types chosen from C1-C4 monohydric alcohol, C2-C12 polyhydric alcohol, C4-C12 glyceryl ether, and C3-C12 glycol ether. It is a solvent.
Examples of the monohydric alcohol having 2 to 4 carbon atoms include ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, and tertiary butanol.
Examples of the polyhydric alcohol having 2 to 12 carbon atoms include ethylene glycol, propylene glycol, butylene glycol, glycerin, isopropylene glycol, 2,2,4-trimethyl-1,3-pentanediol, 1,8-octanediol, , 9-nonanediol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol and the like.
Examples of the glyceryl ether having 4 to 12 carbon atoms include hexyl glyceryl ether, methyl glyceryl ether, ethyl glyceryl ether, propyl glyceryl ether, butyl glyceryl ether, pentyl glyceryl ether, heptyl glyceryl ether, octyl glyceryl ether, 2-ethylhexyl glyceryl ether, and the like. Can be mentioned.
As glycol ethers having 3 to 12 carbon atoms, ethylene glycol monobutyl ether, ethylene glycol monohexyl ether, ethylene glycol monophenyl ether, propylene glycol monophenyl ether, diethylene glycol monomethyl ether, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether Examples include ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, phenyl carbitol, phenyl cellosolve, and benzyl carbitol.
(C) As a component, C2-C4 monohydric alcohol and C3-C12 glycol ether are preferable, C3-C12 glycol ether is more preferable, Diethylene glycol monobutyl ether is further more preferable.
These (C) components may be used alone or in combination of two or more.

  If content of (C) component with respect to 100 mass% of cleaning composition is a liquid cleaning agent, 30 mass% or less is preferable, 1-25 mass% is more preferable, 3-20 mass% is further more preferable. If content of (C) component is the said preferable range, the further improvement of liquid stability can be aimed at.

<Optional component>
The cleaning composition may contain optional components other than the components (A) to (C) as long as the effects of the present invention are not impaired.
Examples of the optional component include water, surfactants (arbitrary surfactant) other than the components (A) to (B), a pH adjuster, and a preservative.

  When the cleaning composition is a one-component liquid cleaning agent, the content of water with respect to 100% by mass of the cleaning composition is preferably 50 to 99% by mass, more preferably 60 to 99% by mass, and 65 to 95% by mass. % Is more preferable. If it is more than the said lower limit, (A)-(B) component will be easy to disperse | distribute in water. If it is below the said upper limit, since content of (A)-(B) component in a cleaning composition does not decrease too much, the usage-amount of a cleaning composition does not become excessive, and it is convenient.

  Examples of the optional surfactant include nonionic surfactants other than the component (A), anionic surfactants other than the component (B), cationic surfactants, amphoteric surfactants, and semipolar surfactants.

  Examples of the pH adjuster include organic substances such as citric acid and alkanolamine, and inorganic substances such as hydrochloric acid and sodium hydroxide. Content of the pH adjuster with respect to 100 mass% of cleaning composition is not specifically limited, For example, you may be 0.1-5 mass%.

  Examples of the preservative include benzoic acid. The content of the preservative with respect to 100% by mass of the cleaning composition is not particularly limited, and is, for example, 0.1 to 10% by mass.

  In addition, in a cleaning composition, the sum total of (A)-(C) component and arbitrary components does not exceed 100 mass%.

When the cleaning composition is a one-component liquid cleaning agent, pH 5-9 is preferable, and pH 6-8 is more preferable. If pH is in the said range, deterioration of the quality of the vegetables which are wash objects can be prevented favorably.
The pH of the liquid detergent is a value measured by using a pH meter (product name: HM-30G, manufactured by Toa DKK Co., Ltd.), putting an electrode on a sample at 25 ° C., and reading the value after 2 minutes. .

(Production method)
A cleaning composition is manufactured according to a conventionally well-known manufacturing method according to a dosage form.
Examples of the method for producing a one-component liquid detergent include a method of dispersing the components (A) to (B) and, if necessary, the component (C) or an optional component in water that is a dispersion medium.

(how to use)
Next, the usage method (namely, vegetable foreign material removal washing | cleaning method) of the foreign material removal washing | cleaning composition for vegetable foreign materials of this invention is demonstrated.
The vegetable foreign matter removing and cleaning method of the present invention is a cleaning method in which a cleaning liquid is brought into contact with vegetables as objects to be cleaned. The cleaning liquid contains the cleaning composition of the present invention.
In this article, “foreign substance removal cleaning” refers to a cleaning process that mainly removes foreign substances adhering to the object to be cleaned.

An example of the cleaning method will be described with reference to FIG. FIG. 1 is a schematic diagram of a cleaning apparatus used in the cleaning method of the present embodiment.
The cleaning apparatus 1 in FIG. 1 includes a cleaning tank 10 whose upper end is open, a bubble generator 20, and a water supply pipe 30.
The cleaning tank 10 includes an air nozzle 12 at the upper end.
The bubble generator 20 includes an air diffuser 22, a pump 24, and a pipe 26 that connects the air diffuser 22 and the pump 24. The air diffuser 22 is provided near the bottom of the cleaning tank 10.
One end of the water supply pipe 30 is located in the cleaning tank 10, and the other end is connected to a water supply source (not shown).

Examples of the cleaning tank 10 include a tank made of metal such as stainless steel and aluminum, and a tank made of plastic such as polyethylene. The size of the cleaning tank 10 is appropriately determined in consideration of the size and processing of the object to be cleaned.
Examples of the diffuser 22 include a diffuser plate or a diffuser cylinder having a hole with a diameter of 1 to 10 mm, a diffuser, and an ejector.

Next, a cleaning method using the cleaning apparatus 1 will be described.
Water is supplied from the water supply pipe 30 to the cleaning tank 10. The cleaning composition of the present invention is added to the water in the cleaning tank 10 to obtain a cleaning liquid 50.
The content of the cleaning composition in the cleaning liquid 50 is, for example, 100 to 10,000 pppm (mass basis).
Moreover, 1-1000 ppm is preferable and, as for content of (A) component in the washing | cleaning liquid 50, 1-200 ppm is more preferable.
0.1-1000 ppm is preferable and, as for content of (B) component in the washing | cleaning liquid 50, 0.1-100 ppm is more preferable.
For example, the cleaning liquid 50 preferably has a pH of 5 to 9, and more preferably a pH of 6 to 8. If pH is in the said range, deterioration of the quality of the vegetables which are wash objects can be prevented favorably.

An object to be cleaned (vegetables) 40 is put into the cleaning liquid 50. The washing object 40 is not particularly limited as long as it is a vegetable. The vegetables to be washed may be, for example, halls, half-divided vegetables, or cut vegetables that have been cut into eating sizes.
While supplying water from the water supply pipe 30 to the cleaning tank 10, the pump 24 is activated to generate bubbles 52 from the air diffuser 22. At this time, even if the opening diameter of the holes formed in the air diffuser 22 is 1 to 10 mm, the cleaning liquid 50 contains the cleaning agent composition. It may be refined to ˜200 μm to form so-called microbubbles.
The generated air bubbles 52 ascend in the cleaning liquid 50 and peel off foreign substances attached to the surface of the object 40 to be cleaned. In addition, bubbles are generated on the upper surface of the cleaning liquid 50. The foreign matter peeled off from the object to be cleaned 40 stays on the upper surface of the cleaning liquid 50 together with bubbles generated on the upper surface of the cleaning liquid 50.
Here, air 14 is blown from the air nozzle 12 onto the upper surface of the cleaning liquid 50, and foreign matter present on the upper surface of the cleaning liquid 50 is discharged out of the cleaning tank 10 together with bubbles.
At this time, since the foam discharged out of the cleaning tank 10 contains the cleaning composition, it is quickly removed by washing with tap water. For this reason, bubbles do not stay for a long time in a container or a floor surface from which bubbles are discharged.

The temperature of the cleaning liquid 50 is determined in consideration of the quality of the article to be cleaned 40, and is set to 5 to 40 ° C., for example.
The residence time (that is, the cleaning time) of the article to be cleaned 40 in the cleaning tank 10 is not particularly limited, and is, for example, 15 to 300 seconds.

  After an arbitrary cleaning time has elapsed, the object to be cleaned 40 is taken out from the cleaning liquid 50. As needed, you may cut | disconnect the taken-out to-be-washed object 40 to arbitrary sizes, or may contact the water containing disinfectants (hypochlorous acid, ozone, etc.), and may perform a disinfection process.

In addition, the washing | cleaning method of this invention may wash | clean the to-be-washed object 40 previously. For example, the article to be cleaned 40 may be subjected to primary cleaning for removing mud and the like attached to the outer surface by running water.
Moreover, although the washing tank of the above-described embodiment includes an air nozzle, the present invention is not limited to this. The cleaning tank may not include an air nozzle, and bubbles and foreign substances may be removed from the upper surface of the cleaning liquid by overflow. Alternatively, bubbles and foreign substances may be removed from the upper surface of the cleaning liquid with a squeegee or the like.

  As described above, according to the cleaning composition of the present invention, since it contains the component (A), it is appropriately foamed, the wettability of the surface of the object to be cleaned is increased, and foreign matters can be easily peeled off from the object to be cleaned. In addition, since the cleaning composition contains the component (B), the antifoaming property can be improved.

  EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated in detail, this invention is not limited by the following description.

(Raw materials used)
<(A) component: nonionic surfactant represented by the formula (a)>
A-1: A nonionic surfactant in which R is a linear alkyl group having 13 carbon atoms, AO is an oxypropylene group, x = 7, y = 3, and EO and AO are randomly polymerized. Synthesized in Synthesis Example 1 below.
<Synthesis Example 1> Method for synthesizing component A-1 In a 4 L autoclave, 732.14 g of tridecanol and 1.25 g of potassium hydroxide catalyst were charged, the inside of the autoclave was replaced with nitrogen, and the temperature was raised to 100 ° C. while stirring. And dehydrated for 30 minutes. Thereafter, the temperature was raised to 140 ° C., a mixture of 1129.87 g of ethylene oxide and 637.60 g of propylene oxide was introduced at a pressure of 0.25 MPa or less, and aging was performed until the pressure became constant after the introduction. The reaction product was cooled to 50 ° C. and neutralized with acetic acid to obtain a random adduct having an average addition mole number of ethylene oxide of 7 and an average addition mole number of propylene oxide of 3.

A-2: (a) In the formula, R- (EO) _x- (AO) _y -H, R is a linear alkyl group having 13 carbon atoms, AO is an oxypropylene group, x = 7, y = 3 is a nonionic surfactant. Synthesized in Synthesis Example 2 below.
<< Synthesis Example 2 >> Method for synthesizing component A-2 In a 4 L autoclave, 732.14 g of tridecanol and 1.25 g of potassium hydroxide catalyst were charged, the inside of the autoclave was replaced with nitrogen, and the temperature was raised to 100 ° C. while stirring. And dehydrated for 30 minutes. Thereafter, the temperature was raised to 140 ° C., 1129.87 g of ethylene oxide was introduced at a pressure of 0.25 MPa or less, and aging was performed for 30 minutes after the introduction. Next, the reaction product was cooled to 125 ° C., a mixture of 637.60 g of propylene oxide was introduced at a pressure of 0.25 MPa or less, and aging was performed until the pressure became constant after the introduction. The reaction product was cooled to 50 ° C. and neutralized with acetic acid to obtain a block adduct having an average addition mole number of ethylene oxide of 7 and an average addition mole number of propylene oxide of 3.

A-3: In the formula (a), represented by R- (EO) _x- (AO) _y -H, R is a linear alkyl group having 10 carbon atoms, AO is an oxybutylene group, x = 8, y = 1 is a nonionic surfactant. Synthesized in Synthesis Example 3 below.
<Synthesis Example 3> Method for synthesizing component A-3 In a 4 L autoclave, 675.53 g of decanol and 1.25 g of potassium hydroxide catalyst were charged, the inside of the autoclave was replaced with nitrogen, and the temperature was raised to 100 ° C. while stirring. And dehydrated for 30 minutes. Thereafter, the temperature was raised to 140 ° C., 1508.18 g of ethylene oxide was introduced at a pressure of 0.25 MPa or less, and aging was performed for 30 minutes after the introduction. Next, the reaction product was cooled to 125 ° C., and 313.08 g of butylene oxide was introduced at a pressure of 0.25 MPa or less, and aging was performed until the pressure became constant after the introduction. The reaction product was cooled to 50 ° C. and neutralized with acetic acid to obtain a block adduct having an average addition mole number of ethylene oxide of 8 and an average addition mole number of 1 of butylene oxide.

A-4: A nonionic surfactant represented by R- (EO) _x- (AO) _y -H. Block polymerization of an average addition mole number of ethylene oxide of 7 and an average addition mole number of propylene oxide of 8.5 to a secondary alcohol having 12 to 14 carbon atoms (trade name “SOFTANOL EP7085”, Nippon Shokubai Chemical Industry Co., Ltd.) Made).
A-5: Nonionic surfactant represented by R- (EO) _x- (AO) _y- H. Block polymerization of 12 to 14 carbon secondary alcohol with an average addition mole number of ethylene oxide of 12 and an average addition mole number of propylene oxide of 3 (trade name “Softanol EP12030”, manufactured by Nippon Shokubai Chemical Co., Ltd.) .
A′-1: (a) In the formula, R is a branched alkyl group having 12 to 14 carbon atoms, x = 7, and Y = 0 nonionic surfactant. What added ethylene oxide by the average addition mole number 7 with respect to the C12-C14 branched alcohol (Brand name "Leocol TD-70", the product made from Lion Specialty Chemicals).

<(B) component: C8-C24 fatty acid (salt)>
B-1: Palm fatty acid potassium: A coconut oil-derived fatty acid salt mixture mainly containing a fatty acid salt having 12 to 14 carbon atoms.
B-2: Potassium myristate: C14 fatty acid salt.
B-3: Potassium palmitate: fatty acid salt having 16 carbon atoms.

<(B ′) component: Comparative product of component (B)>
B′-1: polyoxyethylene polyoxypropylene glycol (trade name “Epan 710”, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.).
B′-2: polyoxyethylene sec-alcohol ether (trade name “New Coal NT-3”, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.).
B′-3: Glyceryl monocaprylate (trade name “Sunsoft No. 707-C”, manufactured by Taiyo Chemical Co., Ltd.).
B′-4: Branched hexadecanol (trade name “Isofol 16”, manufactured by Sasol Ltd).
B′-5: 2-ethylhexyl-2-ethylhexanoate (trade name “Degressal SD30”, manufactured by BASF).

<(C) component>
C-1: Diethylene glycol monobutyl ether.
C-2: Diethylene glycol monoethyl ether.
C-3: 2-ethylhexyl glyceryl ether.
C-4: Ethanol.
C-5: Glycerin.

<Optional component>
pH adjuster: citric acid.
pH adjuster: potassium hydroxide (KOH).
Water: Ion exchange water.

(Evaluation method)
<Bubbling evaluation>
Connect PVC pipes with a diameter of 2.5 cm and a length of 10 cm to the left and right pipes of the PVC joint TS cheese, then connect a 90 ° elbow and a pipe with a length of 33 cm, seal the ends, and have a U-shaped pipe in plan view. Was made. That is, the U-shaped pipe in plan view includes a main pipe extending in one direction and two sub pipes extending in the same direction from both ends of the main pipe, and the end of the sub pipe is sealed. ing.
Next, a hole with a diameter of 3 mm was formed on the upper surface of the auxiliary pipe at a position 7 cm from the end of the auxiliary pipe, and five holes with a diameter of 3 mm were formed at intervals of 3 cm from this hole to obtain a diffuser pipe. The number of holes was 6 in one sub-pipe (12 in total).
The above-mentioned air diffuser was installed at the bottom of a cleaning tank having a width of 40 cm, a depth of 25 cm, and a height of 28 cm, and a pump was connected to the air diffuser to obtain a cleaning device.

The following test solution 10L (solution height 10 cm) containing cabbage juice was charged into the washing tank.
The test solution (in particular, cabbage juice test solution) is as follows.
-TOC (total organic carbon): 60-65 mg / L.
-Temperature: 5-10 degreeC.
Hardness: 3 ° DH (German hardness).
Next, a method for preparing the test solution will be described.
100 g of cabbage was cut into pieces. To the chopped cabbage, 1 L of water (3 ° DH) was added and stirred for 5 minutes. After stirring, the cabbage-containing water was filtered to obtain cabbage juice. The obtained cabbage juice was diluted with water (3 ° DH) to prepare a TOC 60-65 mg / L cabbage juice test solution. An online total organic carbon meter (manufactured by Shimadzu Corporation) was used for the TOC measurement.

10 mL of the cleaning composition of each example (cleaning solution concentration 1000 ppm) was added to the cabbage juice test solution. Air of 200 L / min on average was sent from the pump to the air diffuser, and air was blown into the test solution (aeration). The height of the foam 1 minute after the start of aeration was measured.
In addition, when the foam height was 5 cm or more and less than 15 cm, it was judged that foaming was moderate, and when the foam height was 5 cm or more and less than 12 cm, it was judged more appropriate.
When the foam height was 5 cm, it was judged that foaming was insufficient, and when the foam height was 15 cm or more, it was judged that foaming was excessive.

<Bubble disappearance evaluation A>
Aeration was carried out in the same manner as in the above-mentioned << Evaluation of foaming >>, aeration was stopped 5 minutes after the start of aeration, and 1 minute after the aeration was stopped, the foam height was measured. The measurement results are shown in the table.
In addition, when the foam height was less than 8 cm, it was judged that the defoaming property was good. Among these, a foam height of less than 4 cm was judged to have better defoaming properties.

<Bubble disappearance evaluation B>
20 mL of water (3 ° dH) and 20 μL of the cleaning composition of each example were placed in an Epton tube, and this was shaken for 1 minute with an Epton tube shaker (Model YS-8D, manufactured by Yayoi Co., Ltd.). Thereafter, the Epton tube was allowed to stand for 15 seconds, and the bubble height was measured.

<Bubble disappearance evaluation C>
20 mL of the cabbage juice test solution and 20 μL of the cleaning composition of each example were placed in an Epton tube, and this was shaken for 1 minute with an Epton tube shaker (Model YS-8D, manufactured by Yayoi Co., Ltd.). Thereafter, the Epton tube was allowed to stand for 15 seconds, and the bubble height was measured.

<Detergency evaluation>
20-30 bodies of diamondback moth (larvae) were attached to the leaves of cabbage and used as washing objects. A cylindrical bubbling apparatus was filled with 300 mL of a cleaning liquid having a liquid temperature of 15 ° C. (an aqueous solution having a cleaning composition concentration of 1000 ppm), and the cabbage leaf was submerged therein. The bubbling device includes a vinyl chloride pipe having a diameter of 5 cm and a height of 20 cm, and an air pump. A nozzle having a diameter of 0.5 cm is provided at the bottom of the vinyl chloride tube, and an air pump is connected to the nozzle.
10 L of air was blown into the cleaning solution from the nozzle per minute for aeration for 1 minute. After the aeration, the cabbage leaves were taken out and the number of white moth larvae remaining on the cabbage leaves was counted. Moreover, the number of individuals of the diamondback moth that fell in the test solution was measured, and the total number of individuals added to the remaining number was used as the total number of individuals used in the test. The removal rate was determined by the following formula (s). The obtained removal rate was evaluated according to the following evaluation criteria, and the results are shown in the table.
Removal rate (%) = [number of individuals dropped into the test solution] ÷ [total number of individuals] × 100 (s)
In addition, when the removal rate was 30% or more, it was judged that the detergency was good. In particular, it was judged that the cleaning power was better when the removal rate was 50% or higher, and the cleaning power was judged better when the removal rate was 70% or higher.

<Liquid appearance evaluation>
10 mL of the cleaning composition of each example was placed in a 20 mL vial, capped and left in a thermostatic bath at −5 ° C. and 50 ° C. for 1 month, and the liquid appearance was evaluated according to the following evaluation criteria. If “◎” or “○”, the appearance was evaluated as good.
≪Evaluation criteria≫
A: Uniform and transparent.
○: Slightly turbid but clear, no precipitate, suspended matter, or separation observed. Or it is cloudy, but it becomes transparent even when it is 25 ° C.
(Triangle | delta): Although it is cloudy, precipitation, a suspended matter, and isolation | separation are not recognized, but when it is made 25 degreeC, it does not become uniform transparent.
X: Precipitate, suspended matter, cloudiness or separation is observed.

(Examples 1-22, Comparative Examples 1-3)
According to the composition shown in Tables 1 to 3, 100 g of cleaning agent was prepared by the following procedure. A 200 mL beaker was charged with components (A), (B), (C), a pH adjuster and ion-exchanged water, and stirred with a magnetic stirrer to obtain a liquid cleaning agent of each example.
About the obtained liquid cleaning agent, foaming evaluation, foam disappearance evaluation, cleaning power evaluation, and liquid appearance evaluation (-5 degreeC, 50 degreeC) are performed, and the result is shown in a table | surface.

As shown in Tables 1-3, Examples 1-22 to which the present invention was applied had moderate foaming and good defoaming properties and detergency. In addition, Examples 1-17 and 19-22 had good liquid appearance evaluation.
Comparative Example 1 not containing the component (A) had a cleaning power evaluation of 26%. In Comparative Example 2 containing the component (A ′) instead of the component (A), the bubble height in the foaming evaluation was 18 cm or more, and the bubble height in the bubble disappearance evaluation A was 15 cm. In Comparative Example 3 not including the component (B), the bubble height in the bubble disappearance evaluation A was 8 cm.
From these results, it was confirmed that the detergent composition to which the present invention was applied had good detergency, moderate foaming and excellent antifoaming properties.

(Experimental Examples 1-1 to 1-7)
According to the composition shown in Table 4, the cleaning composition of each example was prepared in the same manner as in Example 1. About the obtained cleaning composition, bubble elimination evaluation B is performed and the result is shown in a table | surface.

(Experimental examples 2-1 to 2-7)
According to the composition shown in Table 5, the cleaning composition of each example was prepared in the same manner as in Example 1. The resulting detergent composition was subjected to foam disappearance evaluation C, and the results are shown in the table. Moreover, foaming evaluation was performed about Experimental Examples 2-2 and 2-5 to 2-7, and the results are shown in the table.

As shown in Table 4, when the detergent composition of each example was added to water and shaken, Experimental Examples 1-3 to 1-7 including the component (B ′) contained the component (B). The defoaming property was equal to or better than that of Experimental Example 1-2.
As shown in Table 5, when the detergent composition of each example was added to the cabbage juice test solution and shaken, Experimental Example 2-2, which is the present invention, had a bubble height of 1 cm in the bubble disappearance evaluation C. Met. On the other hand, in Experimental Examples 2-3 to 2-7 containing the component (B ′) instead of the component (B), the bubble height in the bubble disappearance evaluation C was 2 cm or more.
In addition, while Experimental Example 2-2 had a foam height of 10 cm in the foaming evaluation, Experimental Examples 2-5 to 2-7 had a foam height of 18 cm or more in the foaming evaluation.
As mentioned above, although general antifoaming agents other than the component (B) from Experimental Examples 1-1 to 1-7 and Experimental Examples 2-1 to 2-7 hardly exhibit the defoaming effect in the presence of vegetable juice. On the other hand, it was confirmed that only the component (B) exhibits a defoaming effect specifically.

Claims (3)

Foreign matter of vegetables containing nonionic surfactant (A) represented by the following formula (a) and one or more fatty acids (salts) (B) selected from fatty acids having 8 to 24 carbon atoms and salts thereof A cleaning composition for removal cleaning.
R—O — [(EO) _x / (AO) _y ] —H (a)
[In the formula (a), R represents a linear or branched alkyl group having 8 to 24 carbon atoms, a linear or branched alkylene group having 8 to 24 carbon atoms, or an alkylaryl group having 8 to 24 carbon atoms. It is. EO represents an oxyethylene group, and x is a number of 1 to 30 representing the average number of repetitions of EO. AO represents an oxyalkylene group having 3 to 4 carbon atoms, and y is a number of 1 to 20 representing the average number of AO repeats. [(EO) _x / (AO) _y ] indicates that EO and AO may be block polymerized or randomly polymerized, and the order of EO and AO is not limited. ] The [(EO) _x / (AO) _y ] in the formula (a) is a vegetable foreign body according to claim 1, wherein (EO) _x and (AO) _y are block-polymerized in this order. A cleaning composition for removal cleaning.   The cleaning agent composition for foreign substance removal washing of vegetables according to claim 1 or 2 whose mass ratio represented by said (A) ingredient / said (B) ingredient is 0.1-40.

Images