JPH11279598A - Detergent composition for hard material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent compsn. for hard materials which, when added in water, is excellent in both detergency and base material damage control, even if it is not completely dissolved. SOLUTION: This compsn. contains a hydrogenperoxide emitting material (a), a non-crystalline alkali metal silicate or its granule (b), and the relative dissolving time of component (a) and component (b), (Cb /Ca ), has a relation shown by the formula: 0.2<=Cb /Ca <=3.0 [wherein Ca represents the dissolving time of component (a), and Cb represents the dissolving time of component (b).] This compsn. is suitable for the washing of kitchen environment, bath room environment, a water pipe, and a laundry tank. It is pref. that the component (a) is sodium percarbonate or sodium perborate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen surrounding, a bathroom,
The present invention relates to a hard body cleaning composition suitable for cleaning hard bodies such as water pipes.

[0002]

2. Description of the Related Art In many cases, fats and oil stains originating from foods are deteriorated by the action of heat, sunlight, oxygen in the air, etc., and are sticky resinous or semi-dry. It is in a state where it has been done. For such deteriorated oil stains, alkaline strong cleaning agents as shown in JP-B-53-1168, that is, alkaline agents such as ammonia, monoethanolamine and sodium hydroxide, cellosolve, carbitol and the like. A cleaning composition comprising a water-soluble solvent and a surfactant is disclosed. However, such a composition does not have a sufficient cleaning effect on a complicated portion such as a filter of a kitchen range hood or a ventilation fan, and may damage the surface when used on a metal surface such as aluminum.

[0003] The applicant of the present invention uses a combination of a hydrogen peroxide emitter, a bleach activator and a non-crystalline alkali metal silicate as having a high cleaning effect on a complicated portion such as a filter or a ventilation fan of a range hood. (Japanese Patent Application No. 9-127373). This detergent composition has excellent detergency, and when sufficiently dissolved in water, can exhibit sufficient substrate damage suppression properties. However, when used in households, the cleaning agent is often used without sufficiently dissolving it, and in such a case, it is not possible to exhibit sufficient substrate damage suppression properties. Therefore, there is room for further improvement in order to match the actual conditions of use, to make it easier to use in consideration of the consumer's benefit, and to prevent the occurrence of an unexpected situation that damages the object to be cleaned.

[0004] The present invention is directed to a hard body which has excellent detergency and has little damage to the surface to be cleaned even when the cleaning agent is not sufficiently dissolved in consideration of the actual situation of use by consumers. It is an object to provide a liquid detergent composition.

[0005]

Means for Solving the Problems The present inventors controlled the relative dissolving time of the hydrogen peroxide-releasing material as a cleaning component and the alkali metal silicate as a substrate damage suppressing component to thereby achieve cleaning. The present inventors have found that even when the dissolution of the agent is insufficient, it is possible to drastically improve the substrate damage suppressing property, and completed the present invention.

That is, the present invention comprises (a) a hydrogen peroxide releasing substance and (b) an amorphous alkali metal silicate or a granulated product thereof, and the relative dissolution of the component (a) and the component (b) time (C _b / C _a) has the following _{formula: 0.2 ≦ C b / C a} ≦ 30 [ wherein, C _a represents the dissolution time of the component (a), C _b is the component (b) Shows the dissolution time. ] The cleaning composition for a hard body characterized by having the relationship represented by the formula:

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Examples of the hydrogen peroxide-releasing component (a) used in the present invention include percarbonates, perborates, perphosphates, persilicates and the like. Among them, percarbonate and perborate are preferable, and sodium percarbonate,
Sodium perborate is particularly preferred. The component (a) is preferably in the form of a powder, but the particle size is not particularly limited, and the average particle size is preferably 1 to 1200 μm.
m, particularly preferably 100 to 1000 μm, more preferably 300 to 900 μm.

[0008] The hydrogen peroxide-releasing substance of the component (a) is composed of an inorganic salt, an organic compound,
The surface can be coated with a surfactant or the like.

Examples of the inorganic salt include at least one selected from sodium carbonate, sodium hydrogen carbonate, potassium carbonate and sodium sulfate. Examples of the surfactant include a nonionic surfactant, a cationic surfactant, an anionic surfactant, and an amphoteric surfactant, and a nonionic surfactant is particularly preferable. As the nonionic surfactant, for example, those having an alkylene oxide group as a hydrophilic group, and having an aliphatic hydrocarbon group or an aralkyl group as a hydrophobic group, wherein the ratio of the hydrophilic group to the hydrophobic group is arbitrary. Can be mentioned. The nonionic surfactant has an ethylene oxide group, a propylene oxide group or a group containing an ethylene oxide group and a propylene oxide group as a hydrophilic group, and has 6 to 18 carbon atoms as a hydrophobic group.
And at least one selected from those having a linear or branched aliphatic hydrocarbon group. Examples of the organic compound include polyalkylene glycols such as polyethylene glycol and polypropylene glycol having an average molecular weight of 200 to 40,000, preferably 300 to 10,000. The weight ratio of the hydrogen peroxide-releasing component (a) to the surfactant, organic compound or inorganic salt is preferably from 10: 1 to 10,000: 1, particularly preferably from 30: 1 to 1000: It is one.

The content of the component (a) in the composition is as follows:
Preferably it is 20 to 90% by weight, particularly preferably 3 to 90% by weight.
0 to 70% by weight. When the content is 20% by weight or more, sufficient detergency can be imparted, and when the content is 90% by weight or less, manufacturing cost can be reduced while maintaining excellent detergency and substrate damage suppression properties.

The amorphous alkali metal silicate or the granulated product thereof as the component (b) used in the present invention is represented by the following general formula (I): xM ₂ O.ySio ₂ (I) wherein M is X represents a group 1a element of the periodic table, and y represents y
/ X = a number satisfying the relationship of 0.5 to 3.5. And at least one selected from those represented by the following formula:

In the general formula (I), 1 of the periodic table of M
Examples of group a elements include sodium and potassium. These are each independently Na ₂ O or K ₂
O may be comprised, and Na ₂ O and K ₂ O are mixed to form M
₂ O may be included.

Y / x is 0.5 to 3.5, preferably 1.5 to 3.0. When it is 0.5 or more, sufficient water resistance can be provided, and when it is 3.5 or less, sufficient alkali ability as an alkali agent can be provided.

Examples of the amorphous alkali metal silicate represented by the general formula (I) include sodium silicate 1, sodium silicate 2, sodium silicate 3 (manufactured by Nippon Chemical Co., Ltd.) and the like. it can.

The component (b) can be made into a granulated non-crystalline alkali metal silicate in order to more easily control the dissolution time. The granulated product of the non-crystalline alkali metal silicate is obtained by mixing the non-crystalline alkali metal silicate, a water-soluble binder and other components such as a surfactant to be blended if necessary, and granulating the mixture. Granules or their crushed products. Further, the dissolution rate of the component (b) can also be controlled by selecting the type and the mixing ratio of the water-soluble binder, the surfactant, and the like.

The content of the amorphous alkali metal silicate in the granulated material is preferably 20 to 80% by weight,
Particularly preferably, it is 30 to 70% by weight.

The water-soluble binder has an average molecular weight of 2,000 to 20,000, preferably 400 to 10,000.
Water-soluble polymers such as polyalkylene glycols such as polyethylene glycol or polypropylene glycol. The content of the water-soluble binder in the granulated material is preferably 1 to 30% by weight, and particularly preferably 5 to 20% by weight.

Examples of the surfactant include alkyl glucoside, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, sucrose fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, and polyoxyethylene propylene. Nonionic surfactants such as block copolymers (trade name: Pluronic, manufactured by Asahi Denka Kogyo KK), fatty acid monoglycerides, amine oxides, etc .; soaps, alkyl sulfates, alkyl benzene sulfonates, alkyl diphenyl ether sulfonates, polyoxyethylene alkyls Ether sulfate, sulfosuccinic acid diester salt, α-olefin sulfate ester salt, α
-Anionic surfactants such as olefin sulfonates; cationic surfactants such as mono- or dialkylamines or polyoxyethylene adducts thereof, mono- or di-long-chain alkyl quaternary ammonium salts; carbobetaine, sulfobetaine, An amphoteric surfactant such as hydroxysulfobetaine can be used. Among these, from the viewpoint of granulation, nonionic surfactants such as polyoxyethylene alkyl ethers and polyoxyethylene propylene block copolymers, and anions such as alkyl sulfates, alkyl benzene sulfonates, and polyoxyethylene alkyl ether sulfates. Surfactants are preferred. The content of the surfactant in the granulated product is preferably 0.01 to 40% by weight, particularly preferably 0.1 to 30% by weight, and further preferably 1 to 15% by weight.

As for the granulation method and the crushing method,
The method described in JP-A-55973, column 5, lines 2 to 11, and the like can be applied.

The content of the component (b) in the composition is as follows:
Preferably it is 0.1 to 30% by weight, particularly preferably 1 to 15% by weight. When the content is 0.1% by weight or more, sufficient substrate damage suppressing properties can be imparted, and when the content is 30% by weight or less, the production cost can be reduced while maintaining sufficient substrate damage suppressing properties. .

The compounding weight ratio of the component (a) and the component (b) is
Preferably, 40 ≦ (a) / (b) ≦ 1, and particularly preferably, 20 ≦ (a) / (b) ≦ 2. 40 ≦ (a)
/ (B) can provide sufficient detergency,
When (a) / (b) ≦ 1, sufficient substrate damage suppression properties can be imparted.

In the hard body cleaning composition of the present invention, the relative dissolution time (C _b /
C _a ) is represented by the following formula: 0.2 ≦ C _b / C _a ≦ 30 [wherein C _a)
Represents the dissolution time of the component (a), C _b represents the dissolution time of the component (b). ]. The relative dissolution time is preferably 0.5 ≦ C _b / C _a ≦ 15. 0.
When 2 ≦ C _b / C _a ≦ 30, the relative dissolution rates of the component (a) and the component (b) can be adjusted, and the component (a) exerts a sufficient detergency, and ( b) The component exhibits sufficient substrate damage-suppressing properties, so that even when the composition is not sufficiently dissolved, excellent detergency is maintained,
And it can control that a base material is damaged.

The cleaning composition for a hard body of the present invention further comprises the following general formula (II) or (III) as a component (c):

[0024]

Embedded image

[Wherein, R represents a straight-chain alkyl group having 6 to 13 carbon atoms, and M represents a hydrogen atom or an alkali metal atom. ] Can be added.

The bleach activator is represented by the following general formula:

[0027]

Embedded image

Wherein x is 0 or an integer of 1 to 6. ]
An N, N, N'-tetraacetyl compound represented by the following formula can also be blended.

The amount of component (c) to be added to the composition is preferably 1 to 30% by weight, particularly preferably 1 to 1% by weight.
0% by weight.

In order to improve the detergency, the cleaning composition for a hard body of the present invention further has the following general formula (IV): R-CO
OM (IV) [wherein, R represents a straight-chain alkyl group having 6 to 13 carbon atoms, and M represents a hydrogen atom or an alkali metal atom. ] Can be compounded. The compounding amount of the compound represented by the general formula (IV) with respect to the composition is preferably 0.001 to 30% by weight, particularly preferably 0.002 to 20% by weight.

The cleaning composition for a hard body of the present invention may further contain an enzyme. As this enzyme, one or more selected from protease, amylase, cellulase, lipase, peroxidase and the like can be selected and used according to the type of soil. The amount of the enzyme relative to the composition is preferably 0.01 to 30% by weight, particularly preferably 0.1 to 20% by weight.

The detergent composition for a hard body of the present invention may further contain a surfactant. As the surfactant, from the viewpoint of detergency, an anionic surfactant such as an alkyl sulfate, an alkylbenzene sulfonate, or a polyoxyethylene alkyl ether sulfate is preferred. The amount of the surfactant relative to the composition is preferably 0.0
The content is 1 to 30% by weight, particularly preferably 0.1 to 20% by weight, and further preferably 1 to 5% by weight.

The cleaning composition for a hard body of the present invention may further contain a chelating agent. It is known that an oxygen-based bleaching agent decomposes itself due to the presence of a trace amount of metal. By adding a chelating agent, such decomposition can be suppressed and storage stability can be increased. Examples of the chelating agent include alkali metal salts such as tripolyphosphoric acid, pyrophosphoric acid, orthophosphoric acid, and hexametaphosphoric acid, ethylenediaminetetraacetic acid, hydroxyiminodiacetic acid, dihydroxyethylglycine, nitrilotriacetic acid, hydroxyethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, and triethylenetriacetic acid. Tetramine hexaacetic acid or an alkali metal salt thereof,
Aminotrimethylenephosphonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, ethylenediaminetetramethylenephosphonic acid, diethylenetriaminepentamethylenephosphonic acid, N-aminotrimethylenephosphonic acid
At least one selected from oxides, poly-α-hydroxyacrylic acids, and alkali metal salts thereof can be used. The compounding amount of the chelating agent to the composition is preferably 0.0001 to 10% by weight, particularly preferably 0.001 to 3% by weight.

The detergent composition for a hard body of the present invention further comprises a solubilizing agent such as sodium p-toluenesulfonate, sodium xylenesulfonate, sodium alkenylsuccinate, urea, a suspending agent such as a penetrant, and clay. Agents, abrasives, pigments, dyes, fragrances, and the like.

The hard body cleaning composition of the present invention may further contain a buffer for adjusting pH. Examples of the pH adjuster include hydroxides of alkali metals such as sodium hydroxide and potassium hydroxide, amine derivatives such as ammonium hydroxide, mono, di and triethanolamine, and carbonates of alkali metals such as sodium carbonate and potassium carbonate. And alkali metal silicates such as sodium silicate and potassium silicate, and silicates such as ammonium silicate. The amount of the pH adjuster to the composition is preferably 0.01 to 3
0% by weight. In addition, sodium sulfate,
Alkali metal sulfates such as potassium sulfate and lithium sulfate;
Alkali metal bicarbonate such as ammonium sulfate, sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, ammonium bicarbonate, etc., is preferably 0.01
-30% by weight.

The cleaning composition for a hard body of the present invention has a pH of preferably 5 to 13, particularly preferably 9 to 11. When the pH is 5 or more, the reactivity between the components (a) and (c) can be increased, and the production rate of the organic peracid can be increased,
When the pH is 13 or less, the stability of the generated organic peracid can be increased.

The hard body cleaning composition of the present invention can be applied to various cleaning applications. The term "hard body" as used in the present invention refers to a substance that retains a certain shape, regardless of whether it is planar or three-dimensional, as long as it can be washed. The degree of hardness is not limited. Tile, ceramics, enamel, plastic, fiber reinforced plastic, rubber, metal, tile, brick, concrete,
In addition to fixed objects such as floors, stairs, and walls made of cement, glass, wood, and the like, various devices, instruments, tools, furniture, tableware, and the like made of them can be used in general. Therefore, the cleaning composition for a hard body of the present invention is a floor cleaning agent, a furniture cleaning agent, a bathroom cleaning agent, a kitchen cleaning agent, a dishwashing agent, a cleaning agent for a fully automatic washing machine washing tub, Can be applied as a cleaning agent for drainage pipes, kitchen or washroom accessories, etc.

[0038]

EXAMPLES Examples 1 to 10 and Comparative Examples 1 to 3 Hardener cleaning compositions having the compositions (in% by weight) shown in Table 1 were produced. The details of the components shown in Table 1 are as follows. Sodium percarbonate A: manufactured by KISHIDA REAGENTS CHEMICALS) Sodium percarbonate B: 10% by weight of sodium percarbonate A
Coated with aqueous soda ash solution Sodium perborate C: Sodium perborate tetrahydrate (WA
No. 2 sodium silicate: manufactured by Nippon Kagaku Co., Ltd. No. 2 sodium silicate granules D: No. 2 sodium silicate 60% by weight,
Granules of 30% by weight of polyethylene glycol and 10% by weight of sodium linear alkylbenzene sulfonate (LAS) No. 2 sodium silicate granules E: No. 2 sodium silicate 50% by weight,
45% by weight of polyethylene glycol and 5% by weight of LAS
Granulated bleaching activator: Kao Corp. _{C 11 H 23 C (= O} ) O-C
₆ H ₅ -SO ₃ Na general formula (IV) compound: manufactured by Kao Corporation _{C 11 H 23 C (= O} )
ONa Protease: Kao Corporation Amylase: manufactured by NOVO Corporation Sodium carbonate: manufactured by Central Glass Company Alkyl sulfate (AS): manufactured by Kao Corporation The relative dissolution time (C _b / C) of these compositions was determined by the following method. _a ) was measured to test the detergency and substrate damage inhibition. Table 1 shows the results.

(1) Relative dissolution time (C _b / C _a ) 300 ml of tap water at 25 ° C. was placed in _a 500 ml beaker, and stirred with a magnetic stirrer (510 rpm). b) After adding and dissolving 100 mg of the components, the change in electric conductivity was continuously measured. The electric conductivity at the time when the change disappeared was defined as 100%, and the time required until the electric conductivity reached 90% was defined as a dissolution time (second).

(2) Each composition was added to tap water (maintained at 30 ° C.) so as to have a concentration of 1% by weight, and a mixture obtained by gently stirring for 30 seconds and a mixture without stirring were added. Prepared. A dirty aluminum range filter was immersed in each for 1 hour and washed. The degree of contamination and the degree of damage after washing were visually observed and evaluated according to the following criteria. (Cleaning power evaluation criteria) ：: 80% or more of the dirt was cleanly cleaned ○: 60% to less than 80% of the dirt was cleanly cleaned △: 30% to less than 60% of the dirt was cleanly cleaned ×: Less than 30% of dirt was cleanly cleaned (evaluation criteria for damage suppression) ○: No corrosion was observed △: Clouding was generated on the entire surface ×: Corrosion was generated on the entire surface

[0041]

[Table 1]

The compositions of the examples were excellent in both detergency and substrate damage suppression regardless of the presence or absence of stirring.

[0043]

The cleaning composition for a hard body of the present invention can exhibit excellent detergency even when it is not sufficiently dissolved when added to water, and suppresses damage to the substrate. Is done. For this reason, it can be matched with the actual situation of use in ordinary households, which is a great advantage for the user in that it is easier to use.

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI C11D 7:34)

Claims (5)

[Claims] (1) The composition contains (a) a hydrogen peroxide-releasing substance and (b) an amorphous alkali metal silicate or a granulated product thereof, and has a relative dissolution time (C) between the component (a) and the component (b). _b /
C _a ) is represented by the following formula: 0.2 ≦ C _b / C _a ≦ 30 [wherein C _a)
Represents the dissolution time of the component (a), C _b represents the dissolution time of the component (b). ] The cleaning composition for hard bodies which has the relationship represented by these. 2. The cleaning composition for a hard body according to claim 1, wherein the component (a) is sodium percarbonate or sodium perborate. 3. The cleaning composition for a hard body according to claim 1, wherein the weight ratio of the component (a) to the component (b) is 40 ≦ (a) / (b) ≦ 1. 4. The component (b) is represented by the following general formula (I): xM ₂ O.ySiO ₂ (I) wherein M is an element of Group 1a of the periodic table, and x and y are y
/ X = a number satisfying the relationship of 0.5 to 3.5. The cleaning composition for a hard body according to claim 1, 2 or 3, which is represented by the formula: 5. Further, as the component (c), the following general formula (I)
I) or (III): [Wherein, R represents a straight-chain alkyl group having 6 to 13 carbon atoms,
M represents a hydrogen atom or an alkali metal atom. The cleaning composition for a hard body according to any one of claims 1 to 4, which comprises a bleaching activator represented by the formula: