JP2963071B2 - Bleach composition for hard surfaces - Google Patents

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 bleaching agent composition for hard surfaces suitable for removing various types of stains such as drain pipes, bathtubs, washing tubs, and the like.

[0002]

2. Description of the Related Art In many cases, fats and oils derived 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 altered oil stains, alkaline strong cleaning agents as shown in JP-B-53-1168, that is, alkaline agents such as ammonia, monoethanolamine, sodium hydroxide, etc.
A detergent composition comprising a water-soluble solvent such as cellosolve and carbitol, and a surfactant is disclosed. In addition, Japanese Patent Publication Nos. 3-1360 and 5-1758 disclose a foaming detergent composition containing sodium percarbonate as a main component. However, these cleaning agents are not sufficient in cleaning the complicated parts such as the filter of the range hood and the ventilation fan.

[0003] In recent years, a cleaning agent having a high cleaning effect on a complicated portion such as a filter of a range hood or a ventilation fan has been studied. For example, the present applicant has found a bleaching agent composition for hard surfaces using a hydrogen peroxide emitting material, a bleaching activator represented by the following general formula (A), and a crystalline alkali metal silicate, and has filed a patent application. (See Japanese Patent Application No. 8-7820).

[0004]

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[0005] However, although the bleaching composition for hard surfaces reduces the corrosion of the substrate, it does not have sufficient finishing properties such as the gloss of the substrate, and the surface to be cleaned even when the dirt is completely removed. It gave a slightly dull impression and did not give a satisfactory feeling of finish.

The cleaning effect of the bleaching activator tends to be more advantageous under conditions where the temperature of the surface to be cleaned is high.
Under extremely high temperature conditions, the damage to the substrate increases, and a bleach composition for hard surfaces having a sufficient effect of suppressing damage to the substrate has not been found yet.

[0007] Accordingly, an object of the present invention is to provide a high detergency regardless of the type and degree of dirt such as dirt in a kitchen, a bathroom, a drain pipe, a bathtub, and a washing tub, and It is an object of the present invention to provide a hard surface bleaching composition for hard surfaces having less damage to a surface to be cleaned and good finish even under the condition that hot water having a water temperature of 50 ° C. or higher is used.

[0008]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, completed the present invention. That is, the present invention provides: (a) 0.1 to 30% by weight of a non-crystalline alkali metal silicate (b) 30 to 98% by weight of a hydrogen peroxide emitter (c) Reacts with hydrogen peroxide in water to generate an organic peracid The bleaching activator represented by the following general formulas (I) and (II) 0.1
~ 30% by weight

[0009]

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[0010] It is intended to provide a bleaching agent composition for hard surfaces, characterized by containing: Hereinafter, embodiments of the present invention will be described in detail.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The non-crystalline alkali metal silicate as the component (a) of the present invention is represented by the general formula (A) xM ₂ O · ySiO ₂ (A) wherein M is Group Ia element, y / x is 0.5 to 3.5
It is. ] Which does not have a crystal structure.

In the general formula (A), M is Ia in the periodic table.
Group Ia elements are selected from the group Ia elements, such as Na and K. These can be used alone or, for example, in Na ₂ O and K ₂ O
May be mixed to form the M ₂ O component. In the general formula (A), y / x is 0.5 to 3.5, preferably 1.5 to 3.0. When y / x is less than 0.5, the water resistance is insufficient, and when y / x exceeds 3.5, the alkali ability becomes low and the alkalinity is insufficient. Preferred examples include sodium silicate No. 1, sodium silicate No. 2, sodium silicate No. 3, and the like.

In the present invention, the above-mentioned amorphous alkali metal silicate (a) is used alone or in combination of two or more.

The amount of the amorphous alkali metal silicate (a) used in the present invention is 0.1 to 30% by weight, preferably 1 to 15% by weight. (a) If the compounding amount of the component is less than 0.1% by weight, the damage to the target surface is not reduced. A non-crystalline alkali metal silicate as the component (a) is used because it is superior in gloss to the hard surface after washing as compared with a crystalline one.

As the hydrogen peroxide-releasing substance of the component (b), powdery or powdery percarbonates, perborates, perphosphates, persilicates and the like can be mentioned. Sodium carbonate is effective. The amount of the hydrogen peroxide-releasing substance in the composition of the present invention is 30 to 98% by weight, preferably 50 to 90% by weight.
% By weight. If the amount is less than 30% by weight, sufficient bleaching performance cannot be obtained, and if the amount is more than 98% by weight, the bleaching performance is not significantly improved.

The component (c) is a bleach activator represented by the general formula (I) or (II), which reacts with hydrogen peroxide in water to generate an organic peracid. In the general formulas (I) and (II),
The alkyl group represented by R is straight-chain and has 6 to 13 carbon atoms. If the number of carbon atoms is 5 or less and the number of carbon atoms is 14 or more, preferable detergency cannot be obtained. More preferred among these bleach activators are the following formulas (I) -1, (I) -2 or
(II) -1 a compound represented by the formula:

[0017]

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Particularly preferred are compounds represented by the following formulas (IV) and (V).

[0019]

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The amount of the bleaching activator (c) used in the present invention is 0.1 to 30% by weight, preferably 1 to 15% by weight.
%, Particularly preferably 2 to 10% by weight. (c) If the compounding amount of the component is less than 0.1%, no improvement in the cleaning effect is observed, and if it exceeds 30% by weight, no further effect is obtained, which tends to be economically disadvantageous.

In the composition of the present invention, one or two or more fatty acids or fatty acid salts represented by the following general formula (III) can be blended as the component (d).
%, Preferably 0.01 to 1% by weight. By blending in this range, more desirable gloss can be imparted to the target surface.

[0022]

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In the composition of the present invention, sulfates, chlorides, carbonates, and nitrates (component (e)) of divalent metals such as Mg and Ca are contained in an amount of 2%.
Preferably, it is less than about 10% by weight. The presence of 2% by weight or more of the divalent metal salt adversely affects the damage to the target surface. Some of the conventionally used component (b) include a divalent metal salt in the composition thereof, and it is therefore desirable not to use such a component. The component (b) having a divalent metal salt content of less than 2% by weight includes, for example, "PC-A" manufactured by Nippon Peroxide Co., Ltd. More desirable gloss can be provided. The compounding amount of the hydrogen peroxide-releasing substance in the composition of the present invention is 30 to 98% by weight, preferably 50 to 90% by weight.

In the composition of the present invention, any one or two of polyethylene glycol and polypropylene glycol can be blended as the component (f). The amount of these components is preferably 0.5 to 20% by weight, more preferably 1.5 to 10% by weight.

A surfactant may be used in combination with the bleaching composition of the present invention. Examples of the surfactant include alkyl glycosides, polyoxyethylene alkyl ethers, and the like.
Nonionic surfactants such as sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, oxyethyleneoxypropylene block polymer (pluronic), fatty acid monoglyceride, and amine oxide; soap, alkyl sulfate, alkylbenzene sulfonic acid Anionic surfactants such as salts, polyoxyethylene alkyl ether sulfates and sulfosuccinic acid diester salts; cationic interfaces such as mono- or dialkylamines and polyoxyethylene adducts thereof, and mono- or di-long-chain alkyl quaternary ammonium salts Activator; examples include amphoteric surfactants such as carbobetaine, sulfobetaine, and hydroxysulfobetaine. Among these, anionic surfactants such as alkyl sulfates, alkylbenzene sulfonates, polyoxyethylene alkyl ether sulfates, and soaps are particularly excellent in terms of detergency. The amount of the surfactant is preferably 0.01 to 30% by weight in the composition of the present invention, more preferably
It is 0.1 to 20% by weight, particularly preferably 1 to 5% by weight.

The effect of the bleaching composition of the present invention can be further enhanced by adding a buffer for adjusting the pH. The stock solution of the present invention has a pH of 5 to 13, preferably 9 to 13.
~ 11 is appropriate. When the pH is less than 5, the above components
Since the reactivity between (b) and the component (c) is reduced, the production rate of the organic peracid, which is an active ingredient, is reduced, and when the pH exceeds 13, the stability of the produced organic peracid is reduced. Will decrease.

As the buffer, sodium hydroxide,
Alkali metal hydroxides such as potassium hydroxide, ammonium hydroxide, or amine derivatives such as mono-, di-, and triethanolamine; alkali metal carbonates such as sodium carbonate and potassium carbonate; carbonates such as ammonium carbonate; silicic acid Alkali metal silicates such as sodium and potassium silicates, and silicates such as ammonium silicates and the like can be incorporated in the composition of the present invention in an amount of 0.01 to 30% by weight. Further, if necessary, alkali metal sulfates such as sodium sulfate, potassium sulfate and lithium sulfate, ammonium sulfate, alkali metal bicarbonate such as sodium bicarbonate, potassium bicarbonate and lithium bicarbonate, ammonium bicarbonate and the like may be used in the present invention. In the composition of 0.01 to 30% by weight.

Further, it is preferable to add a chelating agent to the composition of the present invention. In general, oxygen-based bleach is known to decompose by a trace amount of metal.
Storage stability can be improved. 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 and alkali metal salts thereof, aminotrimethylene phosphonic acid, 1-hydroxyethylidene
Examples include 1,1-diphosphonic acid, ethylenediaminetetramethylenephosphonic acid, diethylenetriaminepenta-methylenephosphonic acid, N-oxide of aminotrimethylenephosphonic acid, polyα-hydroxyacrylic acid, and alkali metal salts thereof.

The compounding amount of the above chelating agent is preferably 0.0001 to 10% by weight, more preferably 0.01% by weight in the composition of the present invention.
01 to 3% by weight.

The composition of the present invention may contain an enzyme. Examples of enzymes include protease,
Amylase, lipase, isoamylase, pullulanase, oxidase, peroxidase and the like can be mentioned.
These enzymes can be used alone or in combination of two or more.

If necessary, the composition of the present invention may contain p
-Solubilizing agents such as sodium toluenesulfonate, sodium xylenesulfonate, sodium alkenylsuccinate, urea, penetrants, suspending agents such as viscosity, abrasives, pigments,
Optional components such as dyes and fragrances can be blended.

[0032]

The present invention will be described in more detail with reference to the following examples. However, the present invention is not limited by these examples. The percentages in the examples are on a weight basis unless otherwise specified.

Synthesis Example (1) Method for synthesizing bleach activator (i) Phenol (manufactured by Wako Pure Chemical Industries, Ltd.) in a four-necked flask equipped with a cooling tube, a mechanical stirrer, a thermometer, and a dropping funnel. And heated to 100 ° C. Lauroyl chloride (manufactured by Wako Pure Chemical Industries, Ltd.) was added dropwise from the dropping funnel over about 2 hours, and the mixture was aged for about 2 hours while removing HCl generated by blowing in N ₂ . The reaction product was distilled to obtain phenyl laurate. 96% yield, 97% purity. 0.8 mol of phenyl laurate synthesized by the above method was dissolved in 600 g of dichloromethane (manufactured by Wako Pure Chemical Industries, Ltd.) in a four-necked flask, and then cooled to -10 ° C. Thereafter, 0.84 mol of liquid SO ₃ (manufactured by Wako Pure Chemical Industries, Ltd.) was added dropwise from the dropping funnel over 1 hour while suppressing heat generation, and the mixture was returned to room temperature and aged for 1 hour. afterwards,
Dichloromethane is distilled off with an evaporator, and the following formula (i)
The bleaching activator represented by was obtained. 75% yield.

[0034]

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(2) Method for synthesizing bleach activator (ii) 1 mol of p-hydroxybenzoic acid (manufactured by Wako Pure Chemical Industries, Ltd.) in toluene solution (manufactured by Wako Pure Chemical Industries, Ltd.) The dispersion was dispersed in 300 g, and lauric chloride was added dropwise at 50 ° C. over 30 minutes while stirring with a mechanical stirrer, and reacted for 3 hours after the completion of the addition. Thereafter, the solvent and the solvent were distilled off at 100 ° C. under reduced pressure (0.5 to 1 mmHg), washed with acetone, and recrystallized in a toluene solvent.
A bleach activator represented by (ii) was obtained. 85% yield.

[0036]

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Examples 1 to 12 and Comparative Examples 1 to 5 Bleach compositions for hard surfaces having the compositions shown in Tables 1 and 2 were prepared, and 1 part by weight of this composition was added to 100 parts by weight of water at the temperature described in each table. To give a bleach aqueous solution. The following test was performed using this aqueous solution. Tables 1 and 2 show the results.

(1) Detergency test / gloss evaluation test A soiled range filter was immersed in an aqueous bleach solution at a predetermined concentration (1%) and at the temperature shown in the table, and allowed to stand for a certain time (1 hour) to perform immersion cleaning. . The stain on the target surface after washing was visually determined (detergency test), and the finish of the target surface on which the stain was removed was visually determined. <Evaluation Criteria (detergency test)> 4: No dirt 3: Slight dirt 2: Dirt remains scattered 1: Dirt remains all over <Evaluation criteria (gloss (Evaluation test)> 光 沢: Gloss has returned. Δ: Partly cloudy. ×: Cloudy over the entire surface.

(2) Corrosion test for aluminum Tap water prepared by adjusting 1 part by weight of the bleach composition to 30 ° C. or 60 ° C.
It was dissolved in 100 parts by weight, put in a 100 ml glass bottle with a lid, hung from the top of the panel so that the aluminum test panel was in half contact with the liquid, kept at each temperature for 24 hours, and visually observed the corrosion state. <Evaluation criteria (corrosion test)> ：: No corrosion is observed. ：: Overcast is generated on the whole. ×: Corrosion is generated on the entire surface.

[0040]

[Table 1]

[0041]

[Table 2]

(Note) Powdered sodium silicate A: powdered sodium silicate No. 2 (manufactured by Nippon Chemical) Crystalline sodium silicate: manufactured by Hoechst, SKS-6

[0043]

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PEG: PEG 6000 (manufactured by Wako Pure Chemical Industries, Ltd.) PPG: PPG (average molecular weight: 2000, manufactured by Wako Pure Chemical Industries, Ltd.) AS: Sodium lauryl sulfate (manufactured by Wako Pure Chemical Industries, Ltd.) Fatty acids B: Lauric acid (Wako Pure Chemical Industries, Ltd.) Fatty acid C: Decanoic acid (Wako Pure Chemical Industries, Ltd.)

Continuation of the front page (51) Int.Cl. ⁶ Identification code FI C11D 7:34) (56) References JP-A-9-324196 (JP, A) JP-A 8-3593 (JP, A) JP-A 8-337796 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) C11D 7/14-7/54 WPI / L (QUESTEL)

Claims (5)

(57) [Claims] (1) A non-crystalline alkali metal silicate 0.1 to 0.1
30% by weight (b) Hydrogen peroxide emitter 30-98% by weight (c) Bleaching activation represented by the following general formulas (I) and (II) that reacts with hydrogen peroxide in water to generate an organic peracid Agent 0.1
~ 30% by weight A bleach composition for hard surfaces, comprising: 2. The bleaching composition for hard surfaces according to claim 1, which comprises a fatty acid or a fatty acid salt represented by the following general formula (III) as the component (d). Embedded image 3. The bleaching agent composition for hard surfaces according to claim 1, which comprises 0.1 to 20% by weight of one or two selected from polyethylene glycol and polypropylene glycol as the component (f). 4. The bleach composition for hard surfaces according to claim 1, wherein the component (b) is sodium percarbonate. 5. The bleaching activator of the component (c) has the following general formula (I)
The bleaching composition for hard surfaces according to any one of claims 1 to 4, which is a compound represented by (V) or (V). Embedded image