JP2001354997A - Gluconic acid detergent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a novel detergent which may clean strongly ingrained oil and fat components, slimes, silica, and the like, by separating and decomposing these, is soluble to solutions independently of their quality or temperature and gives a predetermined cleaning effect just by soaking an article to be cleaned therein. SOLUTION: This gluconic acid detergent contains from 50 to 80 wt.% sodium silicate, from 15 to 25 wt.% sodium carbonate, from 3 to 8 wt.% nonionic surfactant, from 2 to 8 wt.% sodium percarbonate, from 2 to 8 wt.% sodium gluconate, from 0.5 to 5 wt.% total of an enzyme for separating and decomposing oils and fats and an enzyme for separating and decomposing proteins and from 0.5 to 3 wt.% antifoaming agent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gluconic acid-based detergent, and more particularly, to a wooden, metal, or plastic returnable box, a cooling water system for an air conditioner, a piping system, a filter, and the like.
The present invention relates to a cleaning agent used for cleaning other objects to be cleaned.

[0002]

2. Description of the Related Art Conventionally, when transporting fresh foods, processed foods, various industrial products, and other articles, wooden, metal,
Various returnable boxes made of plastic or the like are used. If these returnable boxes are used for a long time for transporting oil-containing substances such as fish and machine parts, the fats and oils contained in the returnable boxes will stick firmly to the returnable boxes, causing the surface to become slick or discolored. Even when washing was performed using a conventional detergent such as a neutral detergent or a cresol-based agent, it was not possible to remove firmly adhered fat and oil components.

On the other hand, as disclosed in Japanese Patent Application Laid-Open No. 10-140188, a immersion treatment liquid for cleaning containing an alkali agent, a surfactant, a chelating agent and the like has been proposed.
In this prior art, a plastic container as an object to be cleaned is impregnated with a immersion treatment liquid for cleaning for a predetermined time, and then washed with a cleaning agent to remove black stains on the plastic container. Cleaning is troublesome as much as necessary. Further, when the temperature of the cleaning immersion treatment liquid is high, a remarkable effect is exhibited, and there is a problem that the method of use, the conditions of use, the equipment used, and the like are limited.

[0004] Conventionally, in the case of washing a returnable box for food, a sanitizing step using sodium hypochlorite is required after washing from the viewpoint of hygiene. However, the conventional detergent has low bacteriostatic and sterilizing effects. Therefore, a high concentration (usually about 200 to 20,000 ppm) of sodium hypochlorite is used, and there are problems such as a bad influence on the working environment, the human body, and a target object due to chlorine.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned conventional circumstances, and has as its object the object of the present invention which is difficult to clean with conventional cleaning agents and processing solutions. Oils, slimes, silica, etc., which have firmly adhered to the object can be peeled and decomposed and washed, and it is soluble regardless of the water quality and temperature of the solution. An object of the present invention is to provide a novel cleaning agent that can obtain a cleaning effect and can reduce the chlorine concentration in a sterilization step because of its excellent bacteriostatic properties.

[0006]

Means for Solving the Problems In order to achieve the above objects, the present inventors have conducted intensive studies and found that, in addition to sodium silicate, sodium carbonate, nonionic surfactant, and sodium percarbonate, cleaning was carried out. By using a detergent having a composition containing a gluconic acid-based natural chelating agent and a reaction accelerator as a peeling aid, it is soluble in city water, groundwater, and seawater, and this detergent was dissolved. If the object to be cleaned is immersed in the cleaning solution for a short period of time, the firmly adhered oils and fats can be separated and decomposed. Was also found to be useful and exerted a predetermined effect on bacteriostatic properties, and the present invention was completed. That is, in the present invention, the basic composition is sodium silicate, sodium carbonate,
A gluconic acid-based detergent containing a nonionic surfactant, sodium percarbonate, a gluconic acid-based natural chelating agent, and a reaction accelerator.

[0007] With such a composition, sodium silicate removes slime, fats and silicas, promotes softening of fats and oils by sodium carbonate, stabilizes alkalis, disperses cleansing action by nonionic surfactants, The surface oxidizing bleaching and disinfecting effects of sodium percarbonate, the release of iron metal by the cleaning and peeling aid, and the release and decomposition effect of the reaction accelerator act. The synergistic effect of the above-mentioned effects of these components firmly adheres to the object to be cleaned. Oils and fats, slime, silica, etc., can be washed by peeling and decomposing, and it is soluble regardless of the water quality and temperature of the solution,
A predetermined cleaning effect can be obtained only by immersing the object to be cleaned for a short time, and a desired bacteriostatic property can be obtained.

[0008] Sodium silicate is an alkali agent added for the purpose of removing slime, oils, silica and the like. As the alkali agent, hydroxides of alkali metals and various silicates can be used. Among the alkali metal salts, silicates are effectively used. As silicates, potassium orthosilicate and orthosilicate are used. Examples include sodium silicate, potassium metasilicate, sodium metasilicate, aluminum silicate, sodium silicate, and the like. Among them, sodium silicate is preferably used in the present invention, and more specifically, sodium metasilicate pentahydrate is used for exfoliating and decomposing oils and fats, and meta is used for exfoliating and decomposing slime and silica. Sodium silicate nonahydrate is preferably used.

[0009] Sodium carbonate is an alkali metal salt added to stabilize the fat and oil softening accelerating action and stabilize the alkaline agent to maintain the cleaning effect. Examples of the alkali metal salt include carbonates, and among them, sodium carbonate and potassium carbonate. Among them, sodium carbonate is preferably used in the present invention.

[0010] Nonionic surfactants are preferably used for cleaning strong dirt as compared with cationic and anionic surfactants. Among them, those having a good balance between hydrophilicity and affinity are preferably used. Specifically, sodium linear alkyl benzene sulfonate,
Ethoxylated ethers, polyoxyethylenes, ethoxylated alkylphenols, polyoxyethylenes, ethoxylated octylphenols, sodium alkyl sulfates, ethoxylated sorbitan fatty acid esters,
And propylene oxide adducts thereof. Of these, polyoxypropylene glycol is preferably used.

[0011] Sodium percarbonate is a percarbonate used for the surface oxidizing bleaching action and the disinfecting action, as well as for effectively removing the adhered soil. Examples of the percarbonate include sodium perborate, peracetic acid, chlorine dioxide, sodium persulfate, and aqueous hydrogen peroxide. In the present invention, it is preferable to use sodium percarbonate.

As a chelating agent as a cleaning and peeling aid,
Examples include aminocarboxylic acids and oxycarboxylic acids. Examples of the oxycarboxylic acid include gluconic acid, citric acid, glycolic acid, malic acid, tartaric acid, and lactic acid. Considering the effect on the environment and the like, gluconic acid-based chelating agents that are naturally derived components are preferably used, and among them, sodium gluconate-based chelating agents are preferably used.

[0013] As the reaction accelerator, it is preferable to contain two kinds of enzymes, fat and oil peeling and decomposing enzyme and protein peeling and decomposing enzyme in the same ratio, whereby oils, fats, slime, silica and the like can be quickly peeled and decomposed. can do.

Examples of the enzyme for decomposing and decomposing fats and oils include protease, rivase and cellulase. Among them, rivase for decomposing and decomposing fats and oils is preferably used.

[0015] Examples of the enzyme for protein exfoliation / decomposition include protease, rivase, and cellulase. Among them, protease for protein exfoliation / decomposition is preferably used.

Preferably, the composition further contains an antifoaming agent. It is possible to add separately in the washing step instead of the composition containing the antifoaming agent in advance, but it is preferable to use a composition containing the antifoaming agent in advance in consideration of the persistence of the antifoaming effect. The antifoaming agent includes a non-silicone type and a silicon type, and the silicon type includes an oil type, an emulsion type, a denatured oil type, a solvent type, and a powder type. The powder type is preferably used as the powder cleaning agent, but the emulsion type is used in the present invention in consideration of the fact that the cleaning agent is used by dissolving it in various water qualities and temperatures and the defoaming effect is taken into consideration. Among them, water-soluble silicon is preferably used.

The more specific component ratio of the gluconic acid detergent according to the present invention is sodium silicate 50 to 80 wt.
%, Sodium carbonate 15 to 25 wt%, nonionic surfactant 3 to 8 wt%, sodium percarbonate 2 to 8 wt%, sodium gluconate 2 to 8 wt%, the enzyme for decomposing fat and oil and the enzyme for decomposing protein are 0 in total. 0.5-5% by weight, defoamer 0.5-
It has been confirmed that when the composition contains 3 wt%, the above-described effects can be more effective.

More specifically, sodium metasilicate pentahydrate 60-65 wt%, sodium carbonate 15-25 wt%, polyoxypropylene glycol 6-8 wt%, sodium percarbonate 3-5 wt%, sodium gluconate 2-5 wt% 4% by weight, 0.5 ~ 1wt% of enzyme for peeling and decomposing fat, 0.5 ~ 1wt% of enzyme for peeling and decomposing protein and 2-3wt% of antifoaming agent It has been confirmed that it exerts a remarkable effect, and is preferably used particularly for cleaning a returnable box for transporting fresh fish (usually called a "bat").

Further, sodium metasilicate nonahydrate 60-65 wt.
%, Sodium carbonate 20-25 wt%, polyoxypropylene glycol 1-3 wt%, sodium percarbonate 4-6 wt%
%, Sodium gluconate 3-5 wt%, enzyme for decomposing fat and oil 0.5-1 wt%, enzyme for decomposing protein 0.5-1
When the composition contains 3% to 4% by weight of an antifoaming agent, the composition has a remarkable effect on decomposing and decomposing slime, silica, etc., and particularly in a cooling tower (generally referred to as a "cooling tower") in an air conditioner. It has been confirmed that it is preferably used for washing.

The gluconic acid detergent according to the present invention has a water temperature of 2 to 2 with respect to any of city water, groundwater and seawater.
It is soluble in a wide range of 0 ° C. in a short time of about 10 to 60 seconds. Then, it is dissolved in any of city water, groundwater, and seawater at a concentration of 0.5 to 5 wt%, and the object to be cleaned is immersed in the obtained cleaning liquid for about 3 to 30 minutes. A predetermined cleaning effect can be obtained. Alternatively, the cleaning liquid may be wiped off after being sprayed on the object to be cleaned,
A predetermined cleaning effect can be obtained.

Further, the gluconic acid detergent according to the present invention comprises:
A gelling agent can be obtained by adding a gelling agent to the above-mentioned composition, and a predetermined cleaning effect can also be obtained by spraying the gel-like cleaning liquid onto an object to be cleaned and then wiping it.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to examples and test examples, but the present invention is not limited to the following examples.

[0023]

Example 1 Sodium gluconate: 3% by weight, polyoxypropylene glycol: 7% by weight, sodium percarbonate:
4 wt%, soda ash: 20 wt%, sodium metasilicate pentahydrate:
63wt%, Clinase A as an enzyme for protein stripping and decomposition
P100-PWC (manufactured by Nihon Yken Co., Ltd.): 0.5 wt%, Clinase NLA-P (manufactured by Nihon Yken Co., Ltd.): 0.5 wt% as an enzyme for peeling and decomposing fat components, KM-73 as an antifoaming agent
(Nippon Yakken Co., Ltd.): A powdery gluconic acid-based detergent having a composition containing 2 wt% was prepared.

30 g of this powdery detergent was added to seawater, city water and groundwater in an amount of 1000 ml each and a water temperature of 2.5-18.
C. and the time until complete dissolution was measured.
Table 1 shows the results.

[0025]

[Table 1]

From the above results, the cleaning agent according to the present invention is:
It was confirmed that it was soluble regardless of water quality and temperature, and completely dissolved in about 10 to 60 seconds.

Next, the detergent of Example 1 was dissolved to a concentration of 1% in a water tank having a water volume of 1200 liters, and the fresh water for transporting fresh fish as shown in FIG. A predetermined number of returnable boxes (bats) A were immersed for cleaning, and a cleaning agent was added at appropriate intervals to maintain the concentration, and the change in the cleaning power with the passage of days was measured. Table 2 shows the results.

[0028]

[Table 2]

From the above results, the cleaning agent according to the present invention is:
Even if used for a long time, the pH value does not change significantly,
It was confirmed that the predetermined detergency could be maintained for a long time.

Next, the cleaning agent of Example 1 was dissolved in a water tank having a water volume of 900 liters so as to have a concentration of 1%. In this water tank, a predetermined number of returnable boxes for carrying fresh fish were provided every day for about one month. Washing is carried out by immersion, and a cleaning agent is added at appropriate intervals to maintain the concentration. A) and B were measured twice. Table 3 shows the results.

[0031]

[Table 3]

From the above results, the cleaning agent of the present invention is
Not be total fungi measured value is more than 10 ³ used for a long period of time, it was confirmed to be excellent in bacteriostatic properties.

Next, the detergent of Example 1 was dissolved in a water tank having a water volume of 900 liters so as to have a concentration of 1%. While performing washing by immersion, the returnable box after immersion cleaning is immersed in a water tank containing sodium hypochlorite having a concentration of 50 ppm for 20 seconds, and then subjected to a sterilization step of rinsing with water. The change of the total fungi in the sodium chlorate water tank was measured A and B twice using a simple total fungi measuring device (the SanBio Checker TTC). Table 4 shows the results.

[0034]

[Table 4]

From the above results, the cleaning agent of the present invention
Even if used for a long time, the total fungi measurement value is 1 in the sterilization process.
0 ¹ not exceed, and than sodium hypochlorite has been used in a conventional sterilization process the results obtained at low concentrations, it was confirmed that excellent bacteriostatic property.

Next, a wooden, metal, or plastic returnable box and a mandarin basket, which are used for carrying work such as opening of fresh fish, soaking in miso, and soaking in oil, are subjected to a cleaning process using a conventional cleaning agent. A comparative test was carried out to visually observe the cleaning ability of the case where the cleaning process was performed with sodium chlorite and the case where the cleaning process using the cleaning agent of the present invention was performed and the process of sterilizing with sodium hypochlorite. The results are shown in Tables 5 and 6.

[0037]

[Table 5]

[0038]

[Table 6]

From the above results, the cleaning agent according to the present invention is:
The cleaning power is superior to that of the conventional cleaning agent, and it has been confirmed that the predetermined cleaning can be performed by a simple operation simply by immersing the object to be cleaned in the cleaning liquid. Furthermore, the cleaning agent according to the present invention has better bacteriostatic activity than conventional cleaning agents, reduces the chlorine concentration used in the sterilization process, improves the working environment, facilitates wastewater treatment,
It was confirmed that it could contribute to simplification of total fungi management and the like.

[0040]

Example 2 Sodium gluconate: 4 wt%, polyoxypropylene glycol: 2 wt%, sodium percarbonate:
5wt%, soda ash: 25wt%, sodium metasilicate nonahydrate:
60% by weight, clinase A as an enzyme for protein stripping and decomposition
P100-PWC (manufactured by Nihon Yken Co., Ltd.): 0.5 wt%, Clinase NLA-P (manufactured by Nihon Yken Co., Ltd.): 0.5 wt% as an enzyme for peeling and decomposing fat components, KM-73 as an antifoaming agent
(Nippon Yakken Co., Ltd.): A powdery gluconic acid-based detergent having a composition containing 3 wt% was prepared.

The cleaning agents of Examples 1 and 2 were used in city water, groundwater,
Dissolved in any of the seawater and immerse various objects to be washed in the obtained washing liquid having a concentration of 0.5 to 2.5%, spray the washing solution onto the object to be washed, and perform washing by a method such as pouring.
The effect of peeling and decomposing strongly adhered fats and oils components, slime, silica and the like was confirmed. The case where the effect was observed was evaluated as ○, and the results are shown in Tables 7, 8, and 9.

[0042]

[Table 7]

[0043]

[Table 8]

[0044]

[Table 9]

From the above results, the cleaning agent according to the present invention is:
It can be used for various cleaning methods such as immersion, charging, spraying, spraying, etc., and it can be used for wooden, metal, plastic returnable boxes, cooling water systems for air conditioning equipment in building maintenance, etc.
When used for cleaning piping systems, filters, house cleaning, and various other objects to be cleaned, it was confirmed that the oily components, slime, silica, etc., which had firmly adhered, were peeled and decomposed, and a remarkable cleaning effect was obtained.

Next, a comparison test was conducted on the difference in the defoaming effect between the case where the composition was previously contained with the defoaming agent and the case where it was added during the washing step. 500 cc of tap water was placed in a 1000 cc beaker, and a predetermined amount of the cleaning agent of Example 1 was added thereto to prepare a 1% concentration cleaning solution. Further, a 1% concentration cleaning solution was prepared by adding a predetermined amount of the cleaning agent of Example 1 except for the defoaming agent, and a test solution 2 was prepared.
And In addition, a cleaning solution having a concentration of 1% was prepared by adding a predetermined amount of each of the cleaning agent of Example 1 except for the antifoaming agent and a powdered antifoaming agent, to thereby prepare Test Example 3. The foaming nozzle was put into each beaker of each test example, air was blown out for 1 minute to foam, the height of the foam from the water surface was measured, and the time from the stop of the air to the disappearance of the foam was measured. The measurement was performed twice for tap water having a temperature of 5 ° C. and 18 ° C. The results are shown in Table 10.

[0047]

[Table 10]

From the above measurement results, it was confirmed that when the composition contained a defoaming agent in advance, the defoaming effect was remarkable. In addition, it was confirmed that the emulsion contained in the emulsion was more effective than the powder contained in advance.

[0049]

As described above, the present invention provides a gluconic acid-based cleaning composition containing sodium silicate, sodium carbonate, a nonionic surfactant, sodium percarbonate, a gluconic acid-based natural chelating agent, and a reaction accelerator. The cleaning agent and cleaning solution make it difficult to clean with conventional cleaning agents and processing liquids. ,
It is soluble irrespective of the water temperature, and a predetermined cleaning effect can be obtained only by immersing the object to be cleaned for a short time. Furthermore, because of its excellent bacteriostatic properties, there is no need to use high-concentration chlorine in the sterilization process after washing, and there are many effects such as improvement of work environment and work equipment, simplification and cost reduction. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a returnable box for transporting fresh fish, which is one of objects to which the gluconic acid-based detergent according to the present invention is used.

[Explanation of symbols]

 A: Return box (bat) for carrying fresh fish

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) C11D 7/60 C11D 7/60

Claims (6)

[Claims] 1. A gluconic acid-based detergent comprising sodium silicate, sodium carbonate, a nonionic surfactant, sodium percarbonate, a gluconic acid-based natural chelating agent, and a reaction accelerator. 2. The gluconic acid-based detergent according to claim 1, wherein the reaction accelerator is an enzyme for decomposing fats and oils and an enzyme for decomposing protein and decomposing proteins, and the content ratio of these enzymes is about the same. 3. The gluconic acid-based detergent according to claim 1, wherein the gluconic acid-based natural chelating agent is sodium gluconate. 4. The gluconic acid-based detergent according to claim 1, wherein the composition further comprises an emulsion-type defoaming agent. 5. A sodium silicate of 50 to 80 wt%, a sodium carbonate of 15 to 25 wt%, a nonionic surfactant of 3 to 8 w
t%, 2-8 wt% of sodium percarbonate, 2-8 wt% of sodium gluconate, a total of 0.5-5 wt% of an enzyme for decomposing fat and oil and an enzyme for decomposing protein and 0.5 to 3 wt% of a defoamer A gluconic acid-based detergent contained. 6. The gluconic acid-based detergent according to any one of claims 1 to 5, which is added to any of city water, groundwater and seawater in a quantity of 0.5.
A cleaning method in which an object to be cleaned is immersed in a cleaning solution dissolved at a concentration of about 5 wt% for a predetermined time.