JPH09111292A - Detergent composition and cleaning method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleanser composition containing a thickening agent and a filler as additional components, useful for oil stains carbonized at relatively high temperatures, substantially not causing the dripping of the liquid, capable of effectively removing the strains, high in safety, and easy in handleability.

SOLUTION: This cleanser composition comprises 100 pts.wt. of water, 1-40 pts.wt. of an inorganic alkali salt (e.g. sodium bicarbonate) and 40-160 pts.wt. of a polyhydric alcohol (e.g. glycerol), further 1-40 pts.wt. of a thickening agent (preferably a natural polysaccharide or its derivative such as xanthan gum) and 20-100 pts.wt. of a filler (preferably an inorganic filler such as calcium carbonate) as additional components.

COPYRIGHT: (C)1997,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, more specifically, a detergent composition which can be advantageously used for removing oil stains adhering to the surface to be washed in a cooking device or the like. Regarding The cleaning composition of the present invention, especially when applied to and removes carbonized oily stains at the relatively high temperatures found in cooking equipment such as grills, ovens, etc., when heated, may result in Dripping from the ceiling surface, vertical surface, etc. is unlikely to occur, dirt can be effectively removed from the surface to be cleaned, and safety is high and handling is easy. When the cleaning composition of the present invention is subjected to the cleaning treatment as described above, it can reduce smoke generation and further improve its practicality.

[0002]

2. Description of the Related Art In a cooking device such as a grill or an oven, it is common that oil stains carbonized at a high temperature adhere to its inner wall. Such oil stains have extremely strong adhesion to the inner wall and cannot be removed with common detergents. Therefore, caustic alkalis such as sodium hydroxide and potassium hydroxide, or strong alkaline detergents containing sodium silicate as the main component. Agents are the most commonly used. However, although such a cleaning agent has a satisfactory cleaning power, it has a great effect on the human body, and when it is used immediately after the use of an oven or the like, there is a risk of generating harmful gas. It is expensive and not easy to handle.

In order to avoid the problems of conventional strong alkaline detergents, Japanese Examined Patent Publication No. 57-47238 discloses a detergent composition containing no caustic alkali, that is, water, an inorganic alkali salt, ammonia or a primary amine. , A detergent composition comprising an organic solvent, an inorganic solvent, a nonionic surfactant, and an amide. Since this detergent composition does not contain caustic, the safety to the human body is improved and undesired smoke can be avoided.
However, since ammonia, primary amines, organic solvents, etc. still exist as contained components, it cannot be said to be a truly safe detergent.

Japanese Patent Publication No. 5-502900 teaches a caustic-free detergent containing a terpene as a main component and containing a surfactant, a foaming agent and a thickener. When this cleaning agent is used for cleaning an oven or the like, it is possible to effectively remove the residue attached to the inner wall of the same at a temperature of 40 ° C. for 30 minutes or at a temperature of 25 ° C. for about 10 hours. However, in the case of this cleaning agent, a long working time is required as described above, and it is necessary to raise the temperature in order to work in a short time. In this case, however, there is a problem that dripping is likely to occur. .

Further, JP-A-54-29303 discloses that
At least one metal nitrate and / or carbonate, suitable for cleaning metal surfaces such as ovens, surfactants,
And it teaches liquid detergent compositions containing thickeners.
Since this detergent composition is neutral to weakly alkaline, it is highly safe for the human body, and its cleaning power is at a level comparable to that of conventional strong alkaline cleaners by raising the temperature in the oven. Can be increased up to. However, this cleaning composition is not suitable for cleaning oil stains on ceiling surfaces or vertical surfaces because it is likely to drip at high temperatures, and is not suitable for cleaning the surface to be cleaned after cleaning. There is a problem that the removal of the residue is complicated.

Further, Australian Patent No. 18605
U.S. Pat. No. 4,968,089 discloses an oven cleaner containing alkali metal bicarbonates, sesquicarbonates, carbonates or mixtures thereof, polyhydric alcohols, thickeners and the like. This detergent composition has high safety to the human body, like the detergent composition described in JP-A-54-29303, and also
By raising the temperature inside the oven, it is possible to obtain an increased cleaning power. However, this cleaning composition is also unsuitable for cleaning oil stains on the ceiling surface or vertical surface because dripping is likely to occur at high temperatures, and after the cleaning operation is finished, rinsing or wiping is performed. There is a problem that it is complicated to remove the residue attached to the surface to be cleaned by the work.

The detergent composition described in the above-mentioned Australian patent further has the problem of smoke generation at high temperature in addition to the above-mentioned problems of safety, handleability, and dripping. That is, in order to obtain increased cleaning power, for example in the oven at about 100-200 ° C.
According to the knowledge of the present inventor, it is considered that the decomposition of polyhydric alcohol (glycerin, propylene glycol, etc.) contained as one component of the detergent composition is the main cause when the temperature is raised to a high temperature. Significant smoke is often found on the inner wall of the oven. Although the smoke itself does not adversely affect the cleaning power, it hinders the cleaning work when flowing out from the oven into the room, and impairs the practicality of the cleaning composition.

[0008]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and, when applied to oily stains carbonized at a relatively high temperature to wash them, a liquid It is an object of the present invention to provide a detergent composition that is unlikely to cause sagging, effectively removes dirt from the surface to be washed, has high safety, and is easy to handle.

Another object of the present invention is to provide a detergent composition which exhibits the above-mentioned excellent cleaning characteristics and does not cause the problem of smoke generation at high temperatures. Still another object of the present invention is to provide a cleaning method for removing carbonized oil stains in a cooking device such as a grill or an oven, which uses the above-described cleaning composition.

[0010]

According to the present invention, the above object is to add a thickener and a filler as additional components to a detergent composition containing water, an inorganic alkali salt and a polyhydric alcohol. It can be achieved by a detergent composition characterized by the following. Also, according to the present invention, 100 parts by weight of water, 1 to 40 parts by weight of an inorganic alkali salt, 10 to 2 parts by weight.
Provided is a detergent composition comprising 00 parts by weight of a polyhydric alcohol and 0.01 to 30 parts by weight of a thickener.

Further, according to the present invention, the purpose is to remove carbonized oil stains adhering to the surface to be cleaned, wherein the cleaning composition of the present invention is applied to the surface to be cleaned. A cleaning method is also provided.

[0012]

DETAILED DESCRIPTION OF THE INVENTION The detergent composition according to the invention can have various preferred forms. Although the typical ones are described below, the present invention is
It should be understood that it is not limited to these forms. The detergent composition of the present invention contains water, an inorganic alkali salt and a polyhydric alcohol as its main components. These components can be used by selecting appropriate ones from the commonly used compounds as in the case of the conventional detergent composition.

When the inorganic alkali salt is used in the detergent composition of the present invention, it has a function of effectively decomposing carbonized oil stains and protein stains under high temperature conditions of about 100 to 200 ° C. ing. Inorganic alkali salts that can be advantageously used in the cleaning composition of the present invention include hydrogen carbonate, carbonate, phosphate, borate, and the like,
More specifically, though not limited to those listed below, it includes sodium hydrogen carbonate, potassium carbonate, sodium carbonate, ammonium carbonate, trisodium phosphate, tripotassium phosphate, sodium metapolyphosphate, sodium borate and the like. These inorganic alkali salts are preferably used in an amount of 4 to 25 parts by weight with respect to 100 parts by weight of water in the composition. If the content of the inorganic alkali salt is less than 4 parts by weight, satisfactory detergency cannot be obtained. In addition, the content of the inorganic alkali salt is 25 parts by weight at most, since no significant difference in detergency occurs even if it exceeds 25 parts by weight.

When the polyhydric alcohol is used in the cleaning composition of the present invention, it has a function as a main cleaning agent and also functions as an anticoagulant for the cleaning agent during high temperature cleaning. In addition, when the fatty acid is removed by washing, the effect of a solvent can be obtained. Polyhydric alcohols that can be advantageously used in the detergent composition of the present invention are not limited to those listed below, but include glycerin, diglycerin, polyglycerin,
Includes propylene glycol, dipropylene glycol, polypropylene glycol, sorbitol, and others. All of these polyhydric alcohols have low toxicity,
Virtually harmless to the human body. These polyhydric alcohols are preferably added to 100 parts by weight of water in the composition,
Used in an amount of 70 to 120 parts by weight. When the content of the polyhydric alcohol is less than 70 parts by weight, the function as an anticoagulant is insufficient. On the other hand, when the content of the polyhydric alcohol exceeds 120 parts by weight, only the dripping on the surface to be cleaned becomes remarkable, and the cleaning power does not have any desired effect.

In the detergent composition according to the present invention, it is essential to use a thickener and a filler as additional components in addition to these two components and water. First, the thickener is for adjusting the properties of the resulting detergent composition and includes a wide range of substances. In carrying out the present invention,
The thickener can be arbitrarily selected from such a wide range of substances in consideration of the specific application of the detergent composition of the present invention, and they can be used alone. Alternatively, they may be mixed and used. Suitable thickeners include, for example, natural polysaccharides and their derivatives, specifically tamarind seed polysaccharides, tamarind gum, guar gum, xanthan gum, gellan gum, alginic acid, sodium alginate, propylene glycol alginate, and the like. .

[0016] For example, the proper use depending on the function of the thickener as described above can be carried out depending on how the post-washing treatment of oil stains (washing residue treatment) is performed. That is, in order to obtain a cleaning composition which is less likely to cause dripping of the cleaning liquid on a ceiling surface, a vertical surface, etc. under high temperature, which is one of the objects of the present invention, use xanthan gum and a thickener similar thereto. Is preferred. When such a thickening agent is used, the cleaning liquid takes in oil stains and remains in the form of a film as it is.
It can be easily peeled from the surface to be cleaned using a peeling means such as a spatula. This treatment method is particularly suitable for cleaning the interior of an oven, a grill, or the like, which is difficult to subsequently apply a rinsing operation using water.

Further, in order to completely adhere the cleaning liquid to the surface to be cleaned at a high temperature to improve the cleaning effect and to easily remove the cleaning residue by rinsing with water after cleaning, alginic acid or alginic acid is used. Sodium, guar gum and similar thickeners can be used. As can be understood from the above description, the amount of the thickening agent as described above can be widely changed depending on various factors. These thickeners are preferably used in an amount of 2 to 20 parts by weight based on 100 parts by weight of water in the composition. When the content of the thickener is less than 2 parts by weight, the function as the thickener or the film forming agent is insufficient. On the other hand, when the content of the thickener exceeds 20 parts by weight, the viscosity of the obtained detergent composition increases, and as a result, the coatability decreases.

In the detergent composition of the present invention, a filler is used in combination with the thickener as described above. This is because when the thickener is used alone, dripping of the cleaning liquid occurs at high temperatures, and the cleaning liquid cannot be sufficiently attached to the surface to be cleaned. The filler used in the present invention prevents the occurrence of dripping when the cleaning liquid is applied to the ceiling surface, the vertical surface, etc., and surely adheres to the surface to be cleaned for a time sufficient for the cleaning liquid to act on oil stains. There is no particular limitation as long as it is possible. Suitable fillers are inorganic fillers such as calcium carbonate, titanium oxide, etc.

The above-mentioned fillers can be widely used in the detergent composition of the present invention depending on various factors. These fillers are preferably 20 to 7 with respect to 100 parts by weight of water in the composition.
Used in an amount of 0 parts by weight. If the content of the filler is less than 20 parts by weight, the effect as the anti-drip agent is not obtained. On the other hand, if the content of the filler exceeds 70 parts by weight, the cleaning liquid applied to the surface to be cleaned is likely to dry, and thus it becomes difficult to remove the cleaning residue.

The detergent composition of the present invention comprises the above-mentioned five kinds of components, 100 parts by weight of water, 1 to 40 parts by weight of an inorganic alkali salt, 40 to 160 parts by weight of a polyhydric alcohol, 1 to It is preferably contained so as to contain 40 parts by weight of a thickening agent and 20 to 100 parts by weight of a filler. However, if desired, it is of course possible to use one or more of the components mentioned in amounts outside the ranges mentioned above.

In the detergent composition of the present invention, each of the above-mentioned detergent components may be used alone, or if necessary, two or more substances may be mixed and used. Good. Further, in addition to these components, additives commonly used in the field of detergent compositions may be used in combination. Suitable additional additives include, for example, thickeners other than those mentioned above, such as CMC (carboxymethyl cellulose), PVA (polyvinyl alcohol), polyvinyl acetate, smectite, abrasives, silica powder, and surfactants. Examples thereof include all anionic, nonionic, cationic and amphoteric surfactants, colorants, and fragrances.

The detergent composition according to the present invention has a composition of 1 to 100 parts by weight of water as a modification of the composition as described above, and as a composition capable of reducing smoke generation particularly at high temperature.
It can be configured to include 40 parts by weight of an inorganic alkali salt, 10 to 200 parts by weight of a polyhydric alcohol, and 0.01 to 30 parts by weight of a thickener. As the inorganic alkali salt, polyhydric alcohol and thickener which can be used here, those described above and listed in the preferred examples thereof can be used alone or in combination.

As described above, the inorganic alkali salt as the first component has a function of decomposing oil stains and protein stains at a high temperature of about 100 to 200 ° C., preferably 1 to 40. It is used in an amount of parts by weight (based on 100 parts by weight of water in the composition), more preferably 4 to 25 parts by weight. If the amount of the inorganic alkali salt added is less than 1 part by weight, a satisfactory detergency cannot be obtained, and conversely, if it exceeds 40 parts by weight, a marked improvement in detergency cannot be expected.

The polyhydric alcohol as the second component has a function as a main cleaning agent and a function as an anticoagulant for the cleaning agent during high temperature cleaning. As the polyhydric alcohol, various alcohols can be advantageously used as described above, but from the viewpoint of reducing smoke emission, there is little smoke emission due to decomposition, especially at high temperatures, and a fatty acid removing effect by a transesterification reaction. It is recommended to use even higher diglycerin. The polyhydric alcohol is preferably used in an amount of 10 to 200 parts by weight (based on 100 parts by weight of water in the composition), more preferably 15 to 120 parts by weight. When the amount of polyhydric alcohol added is less than 10 parts by weight, the function as an anticoagulant is small, and conversely, when it exceeds 200 parts by weight, a favorable effect on the detergency cannot be expected.

The third component, the thickener, is for adjusting the properties of the detergent composition by the choice of its type, and is a wide range of substances, preferably some examples being listed above. It includes natural polysaccharides and their derivatives. For example, when it is desired to provide a cleaning agent capable of removing oil stains even without using water, that is, after cleaning at high temperature, cleaning wastewater containing stains remains as a film on the surface to be cleaned, It is preferable to use xanthan gum as such a thickening agent when it is desired to provide a cleaning agent that can easily remove most of the cleaning residue without using water after cleaning the inner wall of the oven, which is difficult to use water. . By virtue of its thickening effect, xanthan gum can prevent dripping on the inner wall of the oven at the time of applying the cleaning agent, and can form a cleaning filth containing the dirt as a film.

Further, the cleaning agent completely adheres to the surface to be cleaned at a high temperature, and the surface to be cleaned can be cleaned with an efficiency of about 90 to 100%, and after cleaning, it can be completely and easily rinsed with water. When it is desired to provide a cleaning agent capable of removing the cleaning residue, it is preferable to use alginic acid, sodium alginate, propylene glycol alginate, guar gum or the like as the thickener. These substances are
By virtue of its thickening action, it is possible to prevent dripping on the inner wall of the oven during the application of the cleaning agent, and also to function as an adhesion-imparting agent when the dirt is attached to the surface to be cleaned.

The above and other thickener substances are preferably 0.01 to 30 parts by weight (based on 100 parts by weight of water in the composition), more preferably 0.05 to 20 parts by weight. Used in quantity. Thickener substance added is 0.01
If it is less than parts by weight, the function as a thickener and an adhesion promoter is small, and if it exceeds 30 parts by weight, the applicability of the detergent is lowered due to the increase in viscosity, and the other properties are recognized. You can't expect the effect to be obtained. These thickener substances may be used alone or in combination of two or more.

In the detergent composition of the above-mentioned embodiment,
Unlike the detergent composition according to the embodiments described above, the use of a filler as a fourth component is not mandatory. However, in the case where glycerin or propylene glycol is used as the polyhydric alcohol of the second component, the filler described above and listed in the preferred examples may be used in an appropriate amount.

Also in the detergent composition of the above-described aspect of the present invention, the first to third detergent components may be used alone, respectively, and if necessary, two or more kinds thereof may be used. You may mix and use the substance of these. Further, in addition to these components, additives (for example, those described above) as commonly used in the field of detergent compositions may be used in combination.

The cleaning composition of the present invention typically has a pH of less than about 13. The preferred pH range is generally from 8 to 12, though it may vary slightly depending on the blending ratio of the components constituting the composition. Further, the viscosity of the cleaning composition of the present invention depends on various factors, for example,
As described above, it is possible to widely vary between the case where the oil stain is taken into the cleaning liquid to form a film and the case where the film is not formed.

The detergent composition of the present invention can be prepared by blending the components described above in a conventional manner. The formulation procedure can be widely varied depending on factors such as the type of component and the amount used. For example,
By mixing the components in the following procedure, a detergent composition having excellent uniformity can be obtained. Stage 1: Stir the inorganic alkali salt with water.

Second stage: The thickener is mixed and stirred. Third stage: Polyhydric alcohol is mixed and stirred. Step 4: Mix and stir the filler. In another aspect thereof, the present invention provides a cleaning method characterized by applying the above-mentioned cleaning composition to the surface to be cleaned of a cooking device such as a grill or an oven. That is, when the cleaning composition of the present invention is used, cleaning of the interior of a cooking device such as a grill or an oven can be performed in an extremely short time and with high efficiency as compared with a method using a conventional cleaning agent. It has good workability. Then, the cleaning composition of the present invention is composed of water, an inorganic alkali salt, a polyhydric alcohol and a thickening agent with the composition as described above,
Smoke generation at high temperatures can be suppressed, and thus the practicality of the cleaning composition can be further enhanced.

The method of the present invention can be advantageously applied to various types of cooking apparatuses on the market, specifically, removal of carbonized oil stains on grills, ovens and the like. In addition, a specific method for applying the cleaning liquid will be described below with respect to a preferred example thereof, but the method is not limited to the method and can be variously modified according to a conventional method.

FIG. 1 is a preferred 1 for removing oven carbonized oil stains using the detergent composition of the present invention.
It is a flow sheet showing the method step by step. After the cooking work is completed, the used oven is stopped. At that time, the temperature inside the oven is high at about 150 to 250 ° C. Cool the oven until the temperature inside the chamber drops from room temperature to 100 ° C. This cooling can usually be performed by leaving the oven.

When the internal temperature reaches a predetermined temperature, the liquid detergent composition of the present invention (hereinafter referred to as "cleaning liquid") is applied.
As an application means, depending on the viscosity of the cleaning liquid, brush coating,
Conventional means such as extrusion from a tube can be used. After applying the cleaning liquid on the surface to be cleaned,
The temperature is raised to 00 to 200 ° C. Approximately 10 to 3 after heating is completed
Leave for 0 minutes. However, this leaving time may be shorter or longer than this, as required. It should be noted that the inside of the oven is preferably kept at a predetermined temperature in order to compensate for the decrease in temperature and thus achieve a satisfactory cleaning effect. For example, 15
An example is leaving at 0 ° C. for 15 minutes.

In the method of the present invention, during the application of the cleaning liquid, the cleaning liquid does not scatter and mist of the cleaning liquid does not occur. The cleaning liquid used here is highly safe in the first place. After the application of the cleaning liquid is finished, the cleaning liquid covers oil stains and / or penetrates into the oil stains while being left as it is or while being heated at a predetermined temperature, whereby the cleaning proceeds.

After the lapse of a predetermined time, the oven is opened again to treat the cleaning residue attached to the surface to be cleaned. The treatment of the cleaning residue can be performed by various methods depending on the type of the residue. For example, if the cleaning residue adheres to the surface to be cleaned in the form of a coating, the coating has weak adhesion,
Moreover, since it has a hardness that is easy to handle, it can be easily collected using a spatula, a scraper, etc., and then wiped off with a wipe or the like. A rinsing process using water or the like is unnecessary. Further, when the cleaning residue is not in the above-mentioned coating state, rinsing and drying can be carried out by a conventional method. Water can be used for rinsing. By this rinsing, not only oil stains but also the cleaning liquid remaining on the surface to be cleaned is completely washed away, and there is no residue. After the treatment of the cleaning residue is completed in this way, the cooking operation can be resumed immediately.

[0038]

The present invention will be described below with reference to its examples and comparative examples. Examples 1 to 7 : In each example, a test cleaning liquid was prepared by mixing the components as shown in Table 1 below in the stated quantitative ratios. In mixing the following ingredients, first,
The inorganic alkali salt was stirred with water in a mixer, and then the resulting mixture was sequentially mixed with a thickener, a polyhydric alcohol, and a filler and stirred. Table 1 (Composition of cleaning solution) Example Ingredient 1 2 3 4 5 6 7 bicarbonate Na 2 4 4 4 - 4 4 Potassium carbonate - - - - 4 - - Glycerin 35 35 20 35 35 35 35 Xanthan gum 3 3 3 1 3--Alginic acid Na ------- 3-Gua gum ---------- Calcium carbonate 15 15 15 15 15 15 15 15 Water 45 43 58 58 43 43 43 43 (The numbers in the table are% by weight) ( Note) Sodium hydrogencarbonate: sodium hydrogencarbonate Na alginate: sodium alginate The performance of the obtained cleaning liquid was evaluated with respect to vertical surface cleaning power and film forming property, and the results as shown in the following Table 2 were obtained. . Table 2 (Cleaning solution performance) Example Evaluation items 1 2 3 4 5 6 7 Cleaning power on vertical surface Normal Good Good Good Normal Good Good Good film forming ability Good Good Normal Normal Good Bad Bad Use any of the cleaning solutions of Examples 1 to 5 Even in the case where it was present, dripping did not occur and the cleaning residue could be easily separated through peeling of the coating. In addition, in Examples 6 and 7 in which the film forming property was evaluated as “poor”, no film was formed, and although the excess cleaning liquid fell off from the oil and fat baking surface, a necessary amount was attached and satisfactory cleaning was achieved. It was effective.

The evaluation methods and evaluation criteria used in this example are as follows. Evaluation of Detergency on Vertical Surface: A mixture of 50% beef tallow and 50% vegetable oil was thickly brush-coated on an iron plate, placed in an oven having an internal temperature of 250 ° C., and baked for 2 hours. Then, each of the cleaning liquids was applied to the oil-baked surface of the iron plate with a film thickness of about 0.5 mm, and was vertically hung in an oven having a chamber temperature of 150 ° C. After left for 15 minutes, the surface of the taken-out iron plate on which the cleaning liquid was applied was wiped with a wipe, and the state of residual fats and oils was visually evaluated in the following three grades.

[Good] Oils and fats were removed in a larger area than 80% of the surface coated with the cleaning liquid. [Ordinary] Oil and fat was removed in an area of 50 to 80% of the surface coated with the cleaning liquid. [Poor] The oil and fat was simply removed in an area of less than 50% of the surface coated with the cleaning liquid. Evaluation of film-forming property: Baking of fats and oils and application of a cleaning liquid were carried out in the same manner as in the case of evaluating the above-mentioned vertical surface cleaning power. The surface of the taken-out iron plate on which the cleaning liquid was applied was visually evaluated with respect to the state of formation of the film and the possibility of wiping with a waist in the following three stages.

A [good] coating was formed which could be easily removed from the iron plate. [Normal] A film was formed, but it was not easy to remove from the iron plate. No [bad] film formation was observed. Comparative Examples 1-4, A and B : The procedure described in Examples 1-7 above was repeated. However, in the case of this example, for comparison, a cleaning liquid having a composition as shown in the following Table 3 was prepared. In addition,
Comparative Example A is an example in which a sodium hydroxide oven cleaner commercially available from Saraya Co., Ltd. under the trade name of "Yogore Trail" is used, and Comparative Example B is also used.
Is an example of using an oven cleaner prepared by repeating the procedure described in Example 11 of Australian Patent No. 18605 previously cited in the prior art. Table 3 (composition of the cleaning liquid) Comparative Example Ingredient 1 2 3 4 A B bicarbonate Na - 4 4 4 Potassium carbonate - - - - Glycerin 35 - 35 35 Xanthan gum 3 3 - 3 alginate Na - - - - Guar gum - --- Calcium carbonate 15 15 15 15 -Water 47 78 46 46 58 (The numbers in the table are weight%) (Note) Na hydrogen carbonate: sodium hydrogen carbonate Na alginate: sodium alginate The performance of the obtained cleaning solution is described above. When the vertical surface cleaning power and the film forming property were evaluated according to the methods described in Examples 1 to 7, the results as shown in Table 4 below were obtained.

[0042] In Table 4 (performance of the cleaning solution) Comparative Example Evaluation items 1 2 3 4 A B vertical plane detergency Poor Poor Poor Fair Poor Poor film forming good bad bad bad bad bad Comparative Example 1, the coating is formed However, the detergency was poor. In Comparative Examples 2 to 4, dripping occurred and a film was not formed. In Comparative Examples A and B, the cleaning liquid did not adhere to the vertical surface, flowed down, and the cleaning power could not be exhibited. Examples 8 to 10 and Reference Example 1 : In each example, the test cleaning liquid was prepared by mixing the components as shown in Table 5 below in the stated quantitative ratios. In blending the following components, first, an inorganic alkali salt was stirred with water in a mixer, then, a thickener and a polyhydric alcohol were sequentially mixed with the obtained mixture and stirred. Table 5 (Composition of cleaning solution) Example Reference Example Ingredient 8 9 10 1 Potassium carbonate 4 4 4 4 Glycerin 5 - - 35 diglycerol 35 40 - - polyglycerol - - 40 - xanthan gum 3 3 3 3 Calcium carbonate - - - 15 Water 53 53 53 53 43 (The numbers in the table are weight%) The performance of the obtained cleaning liquid was measured at different chamber temperatures (150 ° C,
170 ° C and 200 ° C) vertical surface cleaning power in an oven,
When the film-forming property and smoke-preventing property were evaluated, the results shown in Table 6 below were obtained. The vertical surface cleaning power and the film-forming property were evaluated according to the methods and standards described above, and the smoke emission prevention property was evaluated according to the following methods and standards. Evaluation of anti-smoke property: A mixture of 50% beef tallow and 50% vegetable oil was thickly brush-coated on an iron plate, placed in an oven having an internal temperature of 250 ° C, and baked for 2 hours. Then
Apply each cleaning solution to the oil-baked surface of this iron plate with a film thickness of about 0.5 mm, and keep the chamber temperature at 150 ° C and 170 ° C.
Alternatively, it was hung vertically in an oven at 200 ° C. After leaving for 15 minutes, the oven door was opened, and the degree of smoke generation in the oven was visually evaluated in the following three grades.

[Good] Smoke can hardly be recognized. [Normal] Smoke is recognized, but not so much as to be worrisome. [Poor] A large amount of smoke is observed. Table 6 (Cleaning solution performance) Example Reference example Rating Item 8 9 10 1 Detergency (150 ℃) Good Good Bad Good Good film-forming property (〃) Good Good Good Good Smoke-preventing property (〃) Good Good Good Bad Poor cleaning Power (170 ℃) Good Good Bad Good Film Formability (〃) Good Good Good Good Smoke Prevention (〃) Normal Normal Good Good Bad Detergency (200 ℃) Good Good Normal Good Film Formability (〃) Good Good Good Good Smoke Preventability (〃) Poor Poor Poor Normal Poor As can be understood from the results shown in Table 6 above, in the case of Examples 8 and 9 in which the composition of the detergent composition was constituted to fall within the scope of the present invention, In particular, when the temperature inside the chamber is set to 150 ° C., it is possible to significantly prevent smoking inside the chamber, which was difficult to avoid by the conventional technique, and at that time, the cleaning power and the film forming property are also satisfactory. Get the results you get I was able to. However, when the temperature inside the chamber was increased to 170 ° C. or higher, the effect of smoke prevention was found to be reduced. Further, in Example 10, although the smoke prevention property was good, the detergency was slightly lowered. In Reference Example 1, although satisfactory results could be obtained with respect to detergency and film-forming property,
The smoke prevention property was insufficient.

[0044]

As described above, when the grill, the oven, etc. are washed at a high temperature, the use of the thickener causes the liquid to drip and the washing liquid cannot sufficiently adhere to the surface to be washed. However, according to the invention, this problem can be solved by using a filler in combination with a thickener. That is, as a result of including the filler in the cleaning liquid, when the cleaning liquid is applied to the ceiling surface, the vertical surface, etc.,
The wash solution can be prevented from dripping to ensure that the wash solution continues to adhere to those surfaces for a sufficient time to act on the oil stains.

In the present invention, by using xanthan gum or the like as a thickening agent in the detergent composition,
The cleaning liquid can be favorably adhered to the surface to be cleaned, and after applying the cleaning liquid, the cleaning residue remaining as a film on the surface to be cleaned can be easily peeled off and removed without using water. Moreover, since the cleaning liquid used here is a constituent component thereof, it is extremely safe for the human body and the like. This means that the treatment with rinsing water, which is important when cleaning the grill, the oven, etc., is not necessary, and the handling is simple.

Further, by using sodium alginate or the like as the thickener, the adhesion after the application of the cleaning liquid can be enhanced, and the cleaning residue can be easily removed with water. This means that it is particularly effective in cleaning off scorched soil on removable appliances from grills, trays used in cabinets such as ovens, and stationary equipment.

Furthermore, in the present invention, the use of the inorganic alkali salt, the polyhydric alcohol and the thickening agent in the detergent composition in a specific composition ratio reduces smoke generation during high temperature washing, and thus the washing. The practicality of the agent composition can be further improved.

[Brief description of the drawings]

FIG. 1 is a flow sheet that sequentially illustrates one preferred method for removing carbonized oil stains in an oven using the cleaning composition of the present invention.

Claims (9)

[Claims] 1. A detergent composition comprising water, an inorganic alkali salt and a polyhydric alcohol, wherein the detergent composition further comprises a thickener and a filler as additional components. 2. The cleaning composition according to claim 1, wherein the filler is an inorganic filler. 3. The detergent composition according to claim 1, wherein the thickener is a natural polysaccharide or a derivative thereof. 4. 100 parts by weight of water, 1 to 40 parts by weight of an inorganic alkali salt, 40 to 160 parts by weight of a polyhydric alcohol,
The cleaning composition according to claim 1, comprising 1 to 40 parts by weight of a thickening agent and 20 to 100 parts by weight of a filler. 5. The method for removing carbonized oil stains adhering to the surface to be cleaned, which is applied at room temperature and is removed by heating after application or is applied at high temperature. The cleaning composition according to any one of 1. 6. A composition comprising 100 parts by weight of water, 1 to 40 parts by weight of an inorganic alkali salt, 10 to 200 parts by weight of a polyhydric alcohol and 0.01 to 30 parts by weight of a thickener. A cleaning composition. 7. The detergent composition according to claim 6, wherein the thickening agent is a natural polysaccharide or a derivative thereof. 8. The method for removing carbonized oil stains adhering to the surface to be cleaned, which is applied at room temperature and is removed by heating after application or is applied at high temperature. The cleaning composition according to. 9. A cleaning composition for removing carbonized oil stains adhering to a surface to be cleaned, wherein the cleaning composition according to any one of claims 1 to 8 is applied to the surface to be cleaned. A cleaning method characterized by being applied.