JP2001106606A - Fungus-removing agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fungus-removing agent capable of being readily coated without causing drooping down on a vertical wall surface, generating very small amount of chlorine odor when using the agent, and usable in a bathroom, a kitchen or the like. SOLUTION: This fungus-removing agent composition is obtained by formulating magnesium aluminum silicate with an aqueous solution containing hypochlorites and chlorates as an active ingredient to provide a gel. The magnesium aluminum silicate is the one obtained by using a natural smectite clay as a raw material and purifying the raw material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fungicide composition for use in bathrooms, kitchens and the like, which contains a compound capable of releasing active chlorine as an active ingredient.

[0002]

2. Description of the Related Art Generally, a mold removing process is performed as follows.
Sodium hypochlorite, chloroisocyanuric acid compound,
An aqueous solution containing a halogenated hydantoin compound or the like as an active ingredient is used and sprayed on a wall or the like where mold is generated. However, it is not always satisfactory from the viewpoint of safety.

Conventionally, in order to safely handle compounds capable of releasing active chlorine or active oxygen, there has been known a method of gelling and applying an aqueous solution containing these compounds, as disclosed in JP-A-47-8157. In the gazette, a method using a mixture of an aqueous solution of an alkali metal hypochlorite and the like, a synthetic magnesium silicate in which a part of magnesium atoms are replaced by lithium atoms as a gel forming agent,
JP-A-60-180902 discloses a method in which sodium montmorillonite is mixed with an aqueous solution containing sodium chlorite and gelled to stabilize.

[0004] However, when an aqueous solution containing an alkali metal hypochlorite or an aqueous solution containing sodium chlorite is treated with a gel-forming agent, the amount of active chlorine or active oxygen generated is remarkably reduced. Even if it is applied to a wall surface or the like where cracks are generated, mold cannot be sufficiently killed and it is difficult to practically use as a mold removing agent.

The present inventors have already proposed to solve this problem by blending sodium montmorillonite into an aqueous solution containing hypochlorites and chlorates as active ingredients. (Japanese Patent Application No. 10-20758
No. 4). However, when sodium montmorillonite is blended with this type of blended composition, a thixotropic index of 4 is used to prevent dripping when applied to a wall surface.
It was necessary to make the above-mentioned hard gel, and for this purpose, a spatula or the like was inevitably used in applying the composition to the wall surface, and it could not be said that the workability was necessarily in a satisfactory state.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to gel an aqueous solution of a compound capable of generating active chlorine and use it as a fungicide without dripping on a vertical wall surface. A mold remover composition that can be applied, generates very little chlorine odor during use, has a strong killing effect on generated mold, and has good stability of active chlorine during storage. To provide things.

[0007]

In view of such circumstances, the present inventors have conducted numerous studies and studies and found that magnesium / aluminum was added to an aqueous solution containing hypochlorites and chlorates as active ingredients. -It was recognized that the intended purpose could be achieved by adding silicate, and the present invention was completed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The mold remover composition of the present invention comprises a combination of hypochlorites such as sodium hypochlorite and calcium hypochlorite and chlorates such as sodium chlorite and calcium chlorate. It is essential that the weight ratio is slightly different depending on the type of compound,
Usually a ratio of 1: 1 to 5 should be used.

In the practice of the present invention, if the amount of hypochlorite falls below a predetermined range, the amount of active chlorine generated is reduced and the killing action against mold does not appear quickly. The effect does not change even if it is used beyond. When the chlorates are below the predetermined range, the killing power against mold tends to be remarkably reduced. Conversely, when the amount of the chlorates is too large, the stability of the composition during storage decreases. And cannot be stored for a long time. In order to increase the stability of the aqueous solution containing hypochlorites and chlorates, neutral alkali metal salts such as sodium chloride and sodium sulfate should be present in these systems.

The magnesium used in the present invention
Aluminum silicate is refined using natural smectite clay as a raw material, and its typical chemical composition (in terms of oxide) is silicon dioxide 63 to 65.
%, Magnesium oxide 5-12%, aluminum oxide 1
0-15%, ferric oxide 0.5-1.5%, calcium oxide 1-3%, sodium oxide 2-3%, potassium oxide 1-2%, loss on ignition 7-10% It has a white or yellow-brown soft flake appearance, is insoluble in water and alcohol, and swells in water to form a colloidal dispersion.

In the practice of the present invention, the weight ratio of the total amount of hypochlorite and chlorate, magnesium aluminum silicate and water is 50: 2 to 8:48 to
A range of 42 is preferred. In the practice of the present invention, an extender, a colorant, a deodorant and the like which are stable against active chlorine may be used in combination.

The fungicide composition of the present invention usually contains 1,5
It stays in the range of 00 to 2,200 cps (B-type viscometer) and has a ketchup shape. Magnesium aluminum silicate has a three-dimensional lattice structure. By shaking a container containing the three-dimensional lattice structure, each three-dimensional lattice structure is separated and its viscosity is reduced. However, in the stationary state applied to the wall, gnesium, aluminum,
Since the lattice structure of the silicate is quickly stuck, its viscosity is rapidly increased and thixotropic properties are exhibited, so that the composition of the present invention is in a state where the viscosity is lowered by shaking the container, spraying or brushing. The coating can be easily performed on a vertical wall surface, and the dripping phenomenon does not occur when the coating is performed on the vertical wall surface.

The composition applied to the wall is capable of gradually releasing active chlorine and active oxygen and killing the generated mold in a short time. Since it is present and volatilization into the air is suppressed, the duration of the medicinal effect can be drastically extended, and the generation of chlorine odor during use can be drastically reduced.

[0014]

The present invention will be specifically described below with reference to examples and comparative examples. In these tests, dripping when applied to a vertical wall surface was visually observed immediately after application.

The generation of chlorine odor and other off-flavors during use was measured by smell. The killing effect on mold was obtained by contacting a mold remover with mold and visually observing the time required for mold removal. The storage stability of the mold remover is obtained by leaving the sample at room temperature and examining the time-dependent change of active chlorine (reduction rate with respect to the initial concentration). In these tests, magnesium aluminum silicate (trade name: VAN GEL) commercially available from Sanyo Chemical Industries, Ltd. was used.

Example 1 250 parts by weight of a 12% aqueous sodium hypochlorite solution, 250 parts by weight of sodium chlorate and 440 parts by weight of water were uniformly mixed, and 60 parts by weight of magnesium aluminum silicate was added thereto. By mixing uniformly, a mold remover was prepared. The test results of the degree of chlorine odor when the mold remover is applied to the bathroom wall, the killing effect on mold generated on the bathroom wall, and the storage stability of the glass bottle at room temperature are shown in Table 1. All of the characteristics were excellent.

Example 2 250 parts by weight of a 12% aqueous sodium hypochlorite solution and 250 parts by weight of sodium chlorate
20 parts by weight of sodium chloride and 420 parts by weight of water were uniformly mixed, and 60 parts by weight of magnesium aluminum silicate was added thereto and uniformly mixed to prepare a mold remover. Table 1 shows the results of tests of the degree of chlorine odor when the mold remover was applied to the bathroom wall, the killing effect on mold generated on the bathroom wall, and the storage stability stored in a glass bottle at room temperature. As described above, all the properties were good, and particularly, the storage stability was superior to that of Example 1.

Comparative Example 1 500 parts by weight of a 12% aqueous sodium hypochlorite solution and 440 parts by weight of water were uniformly mixed.
To this was added 60 parts by weight of magnesium aluminum silicate and mixed uniformly to prepare a mold remover.
The degree of chlorine odor when the mold remover is applied to the bathroom wall, the killing effect on mold generated on the bathroom wall and the storage stability test results stored in a glass bottle at room temperature are as follows:
As shown in Table 1, although the killing effect on mold was remarkable, it was recognized that it was difficult to put into practical use due to poor storage stability.

[Comparative Example 2] 500 parts by weight of sodium chlorate and 440 parts by weight of water were uniformly mixed, and 60 parts by weight of magnesium aluminum silicate was added thereto and uniformly mixed to prepare a mold remover. . The test results of the degree of chlorine odor when the mold remover is applied to the bathroom wall, the killing effect on mold generated on the bathroom wall, and the storage stability of the glass bottle at room temperature are shown in Table 1. However, it was recognized that there was almost no killing effect on mold and that there was no practicality at all.

[Comparative Example 3] 520 parts by weight of sodium chlorite and 420 parts by weight of water were uniformly mixed, and 60 parts by weight of magnesium aluminum silicate was added thereto and uniformly mixed to prepare a mold remover. did. The test results of the degree of chlorine odor when the mold remover is applied to the bathroom wall, the killing effect on mold generated on the bathroom wall, and the storage stability of the glass bottle at room temperature are shown in Table 1. However, it was recognized that there was almost no medicinal effect against mold, and there was no practical use at all.

Comparative Example 4 580 parts by weight of sodium dichloroisocyanurate and 390 parts by weight of water were uniformly mixed.
To this was added 60 parts by weight of magnesium aluminum silicate and mixed uniformly to prepare a mold remover.
The degree of chlorine odor when the mold remover is applied to the bathroom wall, the killing effect on mold generated on the bathroom wall and the storage stability test results stored in a glass bottle at room temperature are as follows:
As shown in Table 1, although the medicinal effect against mold was remarkable, it was recognized that it was difficult to practically use because it had a strong chlorine odor when applied to a wall surface and had poor storage stability.

[Comparative Example 5] 400 parts by weight of dichlorodimethylhydantoin and 540 parts by weight of water were uniformly mixed, and 60 parts by weight of magnesium aluminum silicate was added thereto and uniformly mixed to prepare a fungicide. . The test results of the degree of chlorine odor when the mold remover is applied to the bathroom wall, the killing effect on mold generated on the bathroom wall, and the storage stability of the glass bottle at room temperature are shown in Table 1. Although the medicinal effect against mold was remarkable, it was recognized that it was difficult to be put to practical use because of its low viscosity and dripping when applied to a wall surface.

[0023]

[Table 1]

[0024]

Industrial Applicability The fungicide of the present invention can be easily applied without dripping on a vertical wall surface, has very little chlorine odor during use, and has a strong killing ability against mold. It has an effect and a great storage effect, and has a great effect on implementation.

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[Procedure amendment]

[Submission date] April 19, 2000 (2004.1.
9)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0002

[Correction method] Change

[Correction contents]

[0002]

2. Description of the Related Art Generally, a mold removing process is performed as follows.
Sodium hypochlorite, chloroisocyanuric acid compound,
An aqueous solution containing a halogenated hydantoin compound or the like as an active ingredient is used and sprayed on a wall or the like where mold is generated. from the viewpoint of safety for, not necessarily in the satisfaction and cormorants Ru state.

Claims (1)

[Claims] A fungicide composition comprising magnesium, aluminum and silicate mixed in an aqueous solution containing hypochlorites and chlorates as active ingredients.