JP4794920B2 - Aqueous liquid detergent composition - Google Patents

Description

  The present invention relates to cleaning hard surfaces, particularly hard surfaces partially containing aluminum material, in food manufacturing equipment including food processing equipment, food manufacturing equipment such as food and beverage filling equipment, and environments such as walls and floors. In particular, the present invention relates to an aqueous liquid detergent composition suitable for foaming washing in food production facilities, food production factories, and the like.

  In factories such as food processing factories and beverage factories, food and beverages are produced using facilities such as food processing equipment and beverage filling machines. When production schedules are interrupted, oil, protein, starch, etc. A cleaning process is provided to remove food stains, fruit beverages, beverage stains such as milk, and the like to ensure the hygiene of equipment and equipment. If the equipment or equipment to be cleaned is large or complicated due to the inclusion of parts, hand washing with a sponge is difficult. Therefore, as an efficient cleaning method, foam cleaning is performed in which the cleaning agent is foamed and applied in the form of foam. Since cleaning with foam can visually check the state of spraying of the cleaning agent, there is an advantage that the processing location can be easily identified and unnecessary scattering of the cleaning agent can be suppressed. Moreover, since the residence time in a washing | cleaning object becomes long by apply | coating to foam shape, the washing | cleaning effect improves. As a cleaning agent used for foam cleaning of such equipment as food processing equipment and beverage filling machines, a cleaning agent containing an alkali component and a surfactant is generally used.

On the other hand, parts made of aluminum or aluminum alloy are often used in these devices and equipment. Since aluminum corrodes due to contact with alkali components, it is known that silicate is used in combination as an anticorrosive agent. For example, Patent Document 1 proposes a liquid detergent composition having an anticorrosive property such as aluminum containing an alkali agent, a silicate, an imidazolinium betaine surfactant, and a solvent. Patent Document 2 proposes an aqueous liquid cleaning agent having good foamability and having anticorrosive properties such as aluminum, which contains an anionic surfactant, an amphoteric surfactant, and a silicate. Patent Document 3 proposes a scale inhibitor containing a phosphonate and an acrylic terpolymer.
JP 2001-323299 A JP 2002-309289 A JP 2003-80294 A

  When silicate is used in combination, it binds to Ca or Mg in tap water and precipitates Ca / Mg silicate, which gradually adheres and accumulates on the object as a so-called silicate scale, causing whitening phenomenon after long-term use. May be significantly impaired. When the processing area becomes large, such as a large-scale food processing device, there may be places where rinsing is insufficient, and the frequency of scale generation may increase. Silicic acid scale is difficult to remove in the normal acid cleaning scale removal process, and it uses a special hydrofluoric acid cleaning agent, and the physical load such as rubbing work is heavy, so extra labor and cost cannot be ignored. Is the situation. However, Patent Document 1 and Patent Document 2 do not describe scale prevention, and the whitening phenomenon due to scale adhesion after long-term use is not alleviated. Further, Patent Document 3 does not describe aluminum corrosion protection, and cannot achieve both high detergency such as denatured protein and oil and aluminum corrosion resistance.

  Therefore, the object of the present invention is excellent in the detergency of dirt such as modified protein, oil, starch, etc., and has an anticorrosive property of aluminum, and suppresses the whitening phenomenon of an object due to a silicic acid scale, etc. An aqueous liquid detergent composition is provided.

The present invention comprises (A) alkali metal silicate [hereinafter referred to as component (A)] 1 to 30% by weight, (B) organic phosphonate (hereinafter referred to as component (B)) 0.5 to 10% by weight, and (C) Highly foaming surfactant (hereinafter referred to as component (C)) 0.5 to 30% by weight, and M ₂ O / SiO ₂ molar ratio (M is an alkali metal) of the whole composition is 1 / It relates to an aqueous liquid detergent composition having a content of 1 to 1/3 and (D) an alkali metal carbonate (hereinafter referred to as component (D)) of 2% by weight or less.

  Moreover, this invention relates to the washing | cleaning method which provides the cleaning liquid prepared from the aqueous liquid detergent composition of the said invention to the target object in foam form.

  According to the present invention, it has high detergency against dirt adhering to equipment / equipment such as a food processing machine, and greatly reduces the corrosiveness of a material such as aluminum, and the whitening phenomenon of an object due to a silicate scale or the like. A highly foamable aqueous liquid detergent composition that suppresses the above is obtained, whereby the cleaning operation in the food factory can be performed efficiently and a high hygiene condition can be maintained. In addition, since the corrosiveness of materials such as aluminum is greatly reduced, the cost and labor associated with the replacement of these parts are greatly reduced.

<(A) component>
The alkali metal silicate is represented by M ₂ O / nSiO ₂ (wherein M is sodium and potassium, and n is the number of moles of SiO ₂ ). 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, and potassium orthosilicate. Potassium silicate, No. 1 sodium silicate, No. 1 potassium silicate are preferred. Further, since the alkali metal orthosilicate has an M ₂ O / SiO ₂ molar ratio of 2/1, the molar ratio is the same as that of No. 1 alkali metal silicate having an M ₂ O / SiO ₂ molar ratio of 1/2. The following can be blended and used.

  The alkali metal silicate in the present invention is a component for washing dirt such as denatured protein, oil, and starch, and at the same time, a component for suppressing corrosion of aluminum.

The M ₂ O / SiO ₂ molar ratio of component (A) (M is an alkali metal) is preferably 1/1 to 1/3, and more preferably 1/1 to 1/2, from the viewpoint of corrosion resistance and detergency of aluminum. .

  The aqueous liquid detergent composition of the present invention contains 1 to 30% by weight of component (A), preferably 2 to 25% by weight, more preferably 3 to 20% by weight, and most preferably 3 to 10% by weight. To do.

<(B) component>
Organic phosphonates play an extremely important role in preventing silicic acid scale. In this application, the scale prevention property needs to be aware of a rinsing process that becomes a lean system rather than a cleaning process. In the washing process, hardness components such as Ca ions and Mg ions in the used water are captured by a chelate component having a sufficient concentration, and binding with silicate ions derived from the component (A) is suppressed. Silica scale is prevented from forming. When the cleaning process is completed and the rinsing process is started, each cleaning agent component is gradually diluted with water used. Since the chelate component concentration is also lowered, Ca ions and Mg ions, which no longer have the chelate action, are combined with the silicate ions derived from the component (A), and a silicate scale of Ca silicate or Mg silicate is generated. Moreover, if the hardness component density | concentration in use water is high, the production amount of the silicic acid scale of Ca silicate or silicate Mg will also become high, and a scale will adhere easily. In this application, for example, when the processing area is large, such as a large-scale food processing device, there may be places where rinsing is insufficient, and the frequency of scale generation may be increased. When organic phosphonate is used, in addition to excellent chelating action, it also has the effect of suppressing the coarsening of scale particles of Ca silicate and Mg silicate. Also in the concentration of substances, the concentration range of the cleaning composition that suppresses the formation of scale becomes very wide, which is advantageous for scale prevention.

As the component (B), 1-hydroxyethane-1,1-diphosphonic acid [CH ₃ C (OH) [PO (OH) ₂ ] ₂ ] (abbreviation: HEDP), aminotri (methylenephosphonic acid) [N [CH ₂ PO (OH) ₂ ] ₃ ] (abbreviation: ATMP), ethylenediaminetetra (methylenephosphonic acid) [N ₂ (CH ₂ ) ₂ [CH ₂ PO (OH) ₂ ] ₄ ], diethylenetriaminepenta (methylenephosphonic acid) [ N ₃ (CH ₂ ) ₂ [CH ₂ PO (OH) ₂ ] ₅ ], 2-phosphono-1,2,4-butanetricarboxylic acid [PO (OH) ₂ CH ₂ CCH ₂ CH ₂ (COOH) ₃ ] ( Abbreviation: PBTC) and the like, and sodium salt or potassium salt of HEDP, ATMP, PBTC is preferable, and sodium salt of HEDP, ATMP or Potassium salts are most preferred. Most preferred is the sodium or potassium salt of ATMP.

  The aqueous liquid detergent composition of the present invention contains 0.5 to 10% by weight of component (B), preferably 1 to 8% by weight, more preferably 1 to 5% by weight.

<(C) component>
High foaming surfactant is a component to develop high foamability and foam sustainability, and the foamed cleaning liquid adheres and is held for a certain period of time, so that The cleaning effect with such as is improved.

  The highly foamable surfactant in the present invention is defined as a surfactant having a foam height of 150 mm or more in a 0.1% by weight aqueous solution and 30 ° C. condition according to the foaming force measurement method described in JIS-K-3362. Is done.

  Examples of highly foaming surfactants include anionic surfactants, nonionic surfactants, and amphoteric surfactants. Specific examples of anionic surfactants include higher fatty acid salts, higher alcohol sulfates, and higher alcohol sulfones. Acid salts, sulfate esters of higher alcohol ethers, sulfonate esters of higher alcohol ethers, and alkylbenzene sulfonates are preferred. As the nonionic surfactant, an alkyl polyglycoside is preferable. As the amphoteric surfactant, alkylamine oxide is preferable.

  These highly foamed surfactants preferably have an alkyl group having 6 to 22 carbon atoms, more preferably have an alkyl group having 8 to 20 carbon atoms, and most preferably 10 to 18 carbon atoms. As a preferred component (C), (C) a highly foamable surfactant is a higher fatty acid salt having a C 6-22 alkyl group, a higher alcohol (C 6-22) sulfate ester salt, a higher alcohol (carbon number). 6-22) Sulfonates, sulfates of higher alcohol ethers (carbon numbers 6-22), sulfonates of higher alcohols (carbon numbers 6-22) ether, alkylbenzenes having alkyl groups of carbon numbers 6-22 Examples thereof include one or more selected from sulfonates, alkyl polyglycosides having an alkyl group having 6 to 22 carbon atoms, and alkylamine oxides having an alkyl group having 6 to 22 carbon atoms.

  In addition, in order to improve the detergency such as oil stain as well as high foamability and foam persistence, it is effective to use two or more components (C) in combination, a combination of an alkylamine oxide and an alkylpolyglycoside, A combination of the anionic surfactant and the alkyl polyglycoside is preferable. By using the alkylpolyglycoside in combination, it is possible to improve the detergency of oil stains and the foam persistence. In this case, the weight ratio between the two is preferably alkylamine oxide / alkyl polyglycoside = 1/2 to 5/1 and anionic surfactant / alkyl polyglycoside = 1/2 to 5/1.

  The aqueous liquid detergent composition of the present invention contains 0.5 to 30% by weight of component (C), preferably 1 to 25% by weight, more preferably 3 to 20% by weight.

<(D) component>
When the alkali metal carbonate concentration in the cleaning composition is increased, it is not preferable from the viewpoint of generation of scale in the usage scene. Therefore, when the product is stored in a container or storage tank, it is desirable to seal the air as much as possible and cut off the air from the viewpoint of suppressing the formation of alkali metal carbonate due to absorption of carbon dioxide gas. For this reason, content of (D) component in the aqueous liquid cleaning composition of this invention is 2 weight% or less, Preferably it is 1 weight% or less.

<Optional component>
If necessary, the aqueous liquid detergent composition of the present invention contains a surfactant other than the components (C ′) and (C) (hereinafter referred to as the component (C ′)), (E) an alkali containing no silicic acid and carbonic acid. Agent (hereinafter referred to as (E) component), (F) Chelating agent other than component (B) (hereinafter referred to as component (F)), (G) Foam enhancer (hereinafter referred to as component (G)), hydrotrope Optional components such as an agent, a solvent, a chlorine bleach, a colorant, a fragrance, and a viscosity modifier may be included. The aqueous liquid detergent composition of the present invention contains the remaining water. Further, the aqueous liquid detergent composition of the present invention preferably has a pH at 25 ° C. of 12 or more, more preferably 13 or more.

[(C ′) component]
The component (C ′) may contain a surfactant other than (C) for the purpose of imparting further foamability or for further improving detergency such as oil stains. Specific examples of the component (C ′) include an anionic surfactant such as a sulfated fatty acid salt, a sulfonated fatty acid salt, a phosphate ester salt, a sulfate ester salt of a fatty acid ester, a sulfonate ester salt of a fatty acid ester, Alcohol ether substituted acetate, fatty acid and amino acid condensate, fatty acid amide alkylol sulfate ester, fatty acid amide alkylated sulfonate, sulfosuccinate ester salt, alkylphenol sulfonate, alkylnaphthalene sulfonate, alkyl Benzimidazole sulfonate, amide ether carboxylic acid or salt thereof, ether carboxylic acid or salt thereof, N-acyl-N-methyltaurine or salt thereof, amide ether sulfuric acid or salt thereof, N-acyl glutamic acid or salt thereof, N- Amidoethyl-N-hydroxyethyl Acetic acid or a salt thereof, acyloxyethanesulfonic acid or a salt thereof, N-acyl-β-alanine or a salt thereof, N-acyl-N-carboxyethyltaurine or a salt thereof, N-acyl-N-carboxyethylglycine or a salt thereof, And alkyl or alkenylaminocarbonylmethylsulfuric acid or a salt thereof.

  Nonionic surfactants include polyoxyethylene alkyl ethers, fatty acid alkanolamides, polyoxyethylene alkylene ethers, polyoxyethylene sorbitan fatty acid esters, sucrose fatty acid esters, and alkyl polyglycerin ethers.

  Examples of amphoteric surfactants include betaines such as alkyldimethylamino fatty acid betaines, alkylamide fatty acid betaines, alkylhydroxysulfobetaines, and alkylcarboxymethylhydroxyethylimidazolium betaines.

  Examples of the cationic surfactant include alkyl trimethyl ammonium salts, dialkyl dimethyl ammonium salts, alkyl dimethyl benzyl ammonium salts, substituted benzalkonium salts, and benzethonium salts.

  Among these components (C ′), anionic surfactants, nonionic surfactants, and amphoteric surfactants are preferable, and the weight ratio with (C) is (C) / (C ′)> 1/2. It is preferable. The content of the component (C ′) in the aqueous liquid detergent composition of the present invention is preferably 1 to 10% by weight, more preferably 1.5 to 5% by weight.

<(E) component>
The component (E) is blended for the purpose of increasing the alkali strength, and specifically, an alkali metal hydroxide is suitable. When blending the alkali metal hydroxide, in terms MOH the (M in the formula represents an alkali metal) to 1 / 2M ₂ O, expressed in addition to M ₂ O in (A), M in the composition _{When the} blending amount is adjusted so that the ₂ O / SiO ₂ molar ratio does not exceed 1/1, the alkali strength can be increased without corroding aluminum. Therefore, it is effective when the M ₂ O / SiO ₂ molar ratio in (A) is 1/2 or less.

The composition of the present invention has a M ₂ O / SiO ₂ molar ratio of the whole composition of 1/1 to 1/1 from the viewpoint of washing dirt such as modified proteins, oils and starches and at the same time suppressing corrosion of aluminum. 3, 1/1 to 1/2 is preferable, and 1 / 1.3-1 / 2 is more preferable. Based on this, it is preferable to adjust the types and blending amounts of the component (A) and the component (E).

<(F) component>
Component (F) includes hydroxycarboxylates such as citrate and gluconate, condensation of aminocarboxylates such as nitrilotricarboxylic acid (NTA) and ethylenediaminetetracarboxylic acid (EDTA), and tripolyphosphate. Examples thereof include phosphates, polyacrylates and acrylate / maleate copolymers, and polycarboxylates having a weight average molecular weight of 2000 to 100,000. Among these, citrate, gluconate, NTA salt, EDTA salt and tripolyphosphate are preferable. In addition, the content of the component (F) in the aqueous liquid cleaning composition of the present invention is preferably 0.5 to 10% by weight, and more preferably 1 to 5% by weight.

<(G) component>
By blending the component (G), it becomes possible to impart further foamability. Specifically, aromatic sulfonates such as toluene sulfonate, xylene sulfonate, naphthalene sulfonate, and the like can be given. It is done. The content of the component (G) in the aqueous liquid detergent composition of the present invention is preferably 0.5 to 10% by weight, more preferably 1 to 5% by weight.

<Chlorine bleach>
A chlorine-based bleaching agent such as sodium hypochlorite can be blended as appropriate, thereby imparting bactericidal power. Depending on the type of surfactant, chelating agent, etc. that coexist in the detergent composition, sodium hypochlorite induces reaction and decomposition over time during storage, and the effective hypochlorite concentration decreases significantly. Therefore, the type and amount of the surfactant and chelating agent are important. Hypochlorite and non-dissociative hydroxyl group-containing components and quaternary ammonium salts and nitrogen-containing components other than amine oxides cannot exist stably in the same composition, so other surfactants And chelating agents are preferably used. However, this is not the case as long as hypochlorite and these components are filled in separate containers, that is, separately packaged and used in a two-pack type. The content of the chlorine bleach in the aqueous liquid detergent composition of the present invention is preferably 0.1 to 10% by weight, more preferably 1 to 5% by weight, as the effective chlorine concentration.

<How to use the cleaning composition>
The aqueous liquid detergent composition of the present invention is used as it is or appropriately diluted with water or the like, filled in an appropriate amount into a dedicated foam washer, mixed with air / compressed air from the outside, and discharged in the form of foam. Applied to the object to be cleaned. The diluted cleaning liquid preferably contains 0.5 to 20% by weight, more preferably 1 to 10% by weight, of the composition of the present invention. When the processing area is large, such as a production line in a food processing factory, a bubble washer (for example, “SCU-HF” manufactured by Spraying Co., Ltd., “KF-100” manufactured by Kao Corporation) is preferably used. When the processing area is small, such as cooking utensils such as cutting boards and fixtures, a hand sprayer that can generate bubbles, such as a trigger sprayer or a foam player, is preferably used.

  A cleaning method for applying a cleaning liquid prepared from the aqueous liquid cleaning composition of the present invention to a target in a foamed state, in particular, filling the cleaning liquid into a foaming machine and mixing it with air or compressed air to form a foamed target. The method of imparting with is preferable. When using a foam washer, the foaming ratio [ratio of foam volume (mL) / foam weight (g)] is preferably 3 to 50 times, more preferably 5 to 40 times, and particularly preferably 10 to 40 times. When a hand sprayer such as a trigger sprayer or a foam player is used, the expansion ratio is preferably 2 to 30 times, more preferably 2 to 20 times, and particularly preferably 3 to 10 times.

  Rinsing with water is performed after a certain time after applying the composition of the present invention. In general, a rinsing operation by a human hand is performed with a hose or the like.

Normally, since fresh water is continuously applied during rinsing, the concentration of the cleaning composition in the treatment medium gradually decreases. In general, in a detergent composition using an alkali metal silicate salt and a chelating agent, there is a concentration (peak concentration) at which scale is likely to be generated, and it is desirable for scale prevention to remove the peak concentration as quickly as possible. . In a conventional general composition using an alkali metal silicate salt and a chelating agent, a peak concentration exists in a wide range of ₂₀ to 500 ppm as SiO2. However, in the composition of the present invention, the peak concentration can be reduced and narrowed in the range of ₂₀ to 100 ppm as SiO ₂ , which is advantageous from the viewpoint of suppression of scale formation accompanying rinsing.

Example 1
Aqueous liquid detergent compositions shown in Tables 1 and 2 were prepared and subjected to the following tests. The results are shown in Tables 1 and 2.

(I) Aluminum corrosion test An aluminum test piece (manufactured by Nippon Test Panel, A1050P, 20 mm × 50 mm × 1 mm) previously washed with a neutral detergent, treated with acetone and dried is used. 50 g of a cleaning agent diluted solution prepared by diluting the cleaning composition shown in Tables 1 and 2 to 10% by weight with tap water is prepared in a 50 mL plastic container. The entire test piece is immersed in a cleaning agent diluent, capped, and stored at room temperature for 24 hours. After 24 hours, the test piece is taken out, rinsed with ion-exchanged water and then dried, and the state of the test piece surface is visually observed and determined according to the following criteria.
Judgment criteria ○: No change △: White discolored part is observed ×: Brown or black discolored part is recognized

(II) Scale prevention property As a test for evaluating scale prevention property, the precipitation inhibition ability / growth inhibition ability of the scale component was evaluated by the following methods (1) and (2).
(1) Transparent stability test 90 mL of Ca / Mg hard water in which 190 mg of calcium chloride (anhydrous) and 86.9 mg of magnesium chloride (hexahydrate) were dissolved in 1 L of ion-exchanged water and the hardness was 12 degrees (in terms of German hardness) , 10 g of a detergent diluent obtained by diluting the detergent composition shown in Tables 1 and 2 to 5 or 10% by weight with ion-exchanged water is added to a 100 cc transparent glass bottle, respectively, to give 0.5 or 1.0 weight. % Detergent / hard water dilution. Cap and lightly infiltrate evenly, leave at room temperature, and after about 24 hours, observe the state of the detergent hard water diluted solution, and judge according to the following criteria.
Judgment criteria ○: Transparent, no change ○ ~ △: Almost transparent but very slightly bluish white △: Clearly cloudy or cloudy, but no precipitation, uniform ×: Clearly recognized precipitation

(2) Turbidity stability test 100 cc of Ca / Mg hard water adjusted to a hardness of 20 degrees (in terms of German hardness) in the same procedure as (1) and 1 g of the detergent composition shown in Tables 1 and 2 It added to the transparent glass bottle, respectively, and it was set as the cleaning agent hard water dilution liquid. Cap and lightly infiltrate evenly, leave at room temperature, and after about 24 hours, observe the state of the detergent hard water diluted solution, and judge according to the following criteria.
Judgment criteria ○: No precipitation is observed and the system is homogeneously cloudy. Δ: Cloudiness and precipitation are observed.
X: Almost no cloudiness was observed, and precipitation was observed

(III) Denatured oil detergency test 1.5 g of rapeseed oil was uniformly applied to the surface of an iron plate (15 cm × 30 cm) that had been polished and washed with a 240 sandpaper and heat-treated in an oven at 180 ° C. for 1 hour. The modified oil stain test piece was prepared. Absorbent cotton (1 cm × 2 cm) was placed on the modified oil-stained test piece, and 1 g of a 10% by weight aqueous solution of the cleaning composition shown in Tables 1 and 2 was dropped onto the absorbent cotton and left at 25 ° C. for 15 minutes. Thereafter, the absorbent cotton was removed and rinsed, and the state of the iron plate surface was visually observed and evaluated according to the following criteria.
Criteria ○: The oil layer has been completely removed. Δ: The oil layer has been partially removed, or swelling has been observed and discolored.
×: Almost no change in oil layer

(Note) The pH of Comparative Product 6 was adjusted to 7 with 1N-sulfuric acid aqueous solution. The components in the table are as follows.
・ No. 1 silicate: Na ₂ O / SiO ₂ = 1/2, manufactured by Osaka Soda Co., Ltd., 41% by weight
・ No. 1 Silicic Acid K: K ₂ O / SiO ₂ = 1/2, manufactured by Nippon Chemical Industry Co., Ltd., trade name “1K Potassium Silicate”, effective 50% by weight
Orthosilicate K: K ₂ O / SiO ₂ = 2/1, manufactured by Guangei Chemical Industry Co., Ltd., trade name “Colin S”, effective content 37% by weight
HEDP4Na: 1-hydroxyethylidene-1,1-diphosphonic acid 4Na salt, manufactured by Solusia Japan Ltd., trade name “DEQUEST2016”, effective content 30% by weight
ATMP5Na: aminotri (methylenephosphonic acid) 5Na salt, manufactured by Solusia Japan, trade name “DEQUEST2006”, effective 40% by weight
-PBTC4Na: 2-phosphono-1,2,4-butanetricarboxylic acid (manufactured by Solusia Japan Co., Ltd., trade name “DEQUEST7000”, effective 50% by weight) and 4-fold molar amount of NaOH separately in the composition Formulation ・ Capric acid K: Capric acid and KOH are mixed separately in equimolar amounts in the composition. ・ LAS-Na: Laurylbenzenesulfonic acid Na, manufactured by Kao Corporation, trade name “Neopelex F-25”, effective 25 weight%
Alkyl glycoside: Lauryl glucoside, manufactured by Kao Corporation, trade name “Mydoll 12”, effective content 40% by weight
-Alkylamine oxide: Lauryldimethylamine oxide, manufactured by Kao Corporation, trade name “Amphitol 20N”, effective content 35% by weight
-POE (12) alkyl ether: polyoxyethylene (average number of moles of ethylene oxide added 12) alkyl (carbon number 12) ether, manufactured by Kao Corporation, trade name "Emulgen 120", effective content 100% by weight
Fatty acid diethanolamide: Coco diethanolamide, manufactured by Kao Corporation, trade name “Aminone C02”, 100% by weight effective amount
-Sucrose fatty acid ester: Mitsubishi Chemical Foods Co., Ltd., trade name “Ryoto Sugar Ester LWA1570”, effective 40% by weight
EDTA4Na: ethylenediaminetetraacetic acid 4Na salt STPP: sodium tripolyphosphate

Example 2
Inventive products 1 to 11 in Table 1, Comparative product 6 in Table 2, and Comparative liquid products 9 to 11 in Table 3 were prepared and subjected to the following tests. The results are shown in Table 3. The components in Table 3 are the same as those in Table 1.

(I) Foamability test (I-1) Foaming property When the detergent composition shown in Table 3 is sprayed with a foaming machine ("KF-100" manufactured by Kao Corporation), the foam state is visually determined and foamed. The magnification was measured and evaluated according to the following criteria. The cleaning composition was adjusted to be a 5% by weight aqueous solution.
Judgment criteria for foam state during spraying ◎; Forms very creamy foam without fluidity (foaming ratio: 15 times or more)
○: Forms creamy foam with almost no fluidity (foaming ratio: 10 to 15 times)
Δ: Forms a slightly fluid, rough or slightly watery foam (foaming ratio: 5 to 10 times)
X: Almost no foam is formed, and it is a watery and highly fluid liquid (foaming ratio: 1 to 5 times)

The foaming ratio is calculated as follows. In a container of about 20 L (cylindrical shape with a diameter of about 28 cm), the detergent composition aqueous solution is sprayed from a foaming machine for about 30 seconds, and the height (cm) and weight (g) of the foam are measured. Calculate the expansion ratio. When foaming is not performed at all with water alone, the foaming ratio = 1.
Foaming ratio = π × 14 (cm) × 14 (cm) × foam height (cm) / foam weight (g)

(I-2) Foam persistence According to the method of the foamability test (I-1), a 1 L beaker was sprayed to a full amount, the remaining amount of foam after 30 minutes was visually determined, and evaluated according to the following criteria.
Judgment Criteria A: Residual foam is observed in the 8th minute or more of the 1 L beaker ○: Residual foam is observed in the 4th minute or more of the 1 L beaker Δ: Residual foam is observed in the first minute or less of the 1 L beaker However, the liquid level is covered with foam. X: The liquid level can be confirmed, and almost no foam remains.

(II) Detergency test The test piece prepared by the following methods (II-1) and (II-2) was weighed (D ₂ ), set up vertically, and on top of that in Table 3 1 g of a 5% by weight water-diluted solution of various compositions was foamed with a foaming machine (“KF-100” manufactured by Kao Corporation), and left for 60 minutes, followed by washing with water. After drying, the weight is measured (D ₃ ), and the starch or oil reduction rate is calculated from the following formula, including the previously measured tare weight (D ₁ ) of the test piece. The score was evaluated based on the standard.
Cleaning rate (%) = [(D ₂ −D ₃ ) / (D ₂ −D ₁ )] × 100
Criteria 5: Cleaning rate 90% to 100% 4; Cleaning rate 70% to less than 90% 3; Cleaning rate 50% to less than 70% 2; Cleaning rate 30% to less than 50% 1; Cleaning rate 0% More than less than 30%

(II-1) Preparation of starch-stained test piece 200 g of commercially available retort rice (sato rice) was heated in a microwave for 2 minutes, then placed in a mixer with 200 g of ion-exchanged water, stirred for 1 minute, and then further ionized Add 400 g of exchange water and stir for 1 minute. The obtained starch slurry was filtered with a double layer of commercially available gauze to obtain a starch slurry for testing. A SUS304 wire mesh (mesh spacing 2 mm, 10 cm × 10 cm) is washed and dried, and then precisely weighed. The starch slurry is applied with a brush to an area of about 7 cm × 10 cm. It was dried at room temperature for 24 hours, weighed precisely, and used as a starch-stained test piece.

(II-2) Preparation of Oil Stain-Applied Test Piece A SUS304 test piece (3 cm × 8 cm) whose surface was polished with 240 sandpaper, washed and dried was precisely weighed. A rapeseed oil / beef tallow mixed oil (50/50 weight ratio) was uniformly applied to the surface and precisely weighed to obtain an oil-stained test piece.

Claims (8)

(A) Alkali metal silicate 1-30% by weight, (B) 0.5-10% by weight of organic phosphonate and (C) higher fatty acid salt having 6-22 carbon atoms, higher alcohol (carbon number) 6-22) Sulfate ester salt, higher alcohol (carbon number 6-22) sulfonate, higher alcohol ether (carbon number 6-22) sulfate ester salt, higher alcohol (carbon number 6-22) ether sulfonate ester One or more selected from a salt, an alkylbenzene sulfonate having an alkyl group having 6 to 22 carbon atoms, an alkyl polyglycoside having an alkyl group having 6 to 22 carbon atoms, and an alkylamine oxide having an alkyl group having 6 to 22 carbon atoms containing a high foaming surfactant 0.5 to 30% by weight of, M ₂ O / SiO ₂ molar ratio of the total composition (M is an alkali metal) 1/1 It is 1/3, and (D) an aqueous liquid detergent composition content is less than 2 wt% of alkali metal carbonate. (B) The organic phosphonate is one or more selected from 1-hydroxyethane-1,1-diphosphonate, aminotri (methylenephosphonic acid) salt and 2-phosphono-1,2,4-butanetricarboxylate The aqueous liquid detergent composition according to claim 1. Furthermore, the aqueous liquid cleaning composition of Claim 1 or 2 containing the alkaline agent which does not contain (E) silicic acid and carbonic acid . Furthermore, the aqueous liquid cleaning composition of any one of Claims 1-3 containing 0.5-10 weight% of chelating agents other than (F) (B) component. Furthermore, the aqueous liquid cleaning composition in any one of Claims 1-4 containing 0.5-10 weight% of (G) foam increasing agents. The aqueous liquid detergent composition according to any one of claims 1 to 5 , which is used for foam cleaning provided in a foam form to an object . The washing | cleaning method which provides the cleaning liquid prepared from the aqueous liquid cleaning composition of any one of Claims 1-6 to a target object with foam form. The cleaning method according to claim 7, wherein the object is a food production facility or a cooking utensil.