JPH1161188A - Drainpipe-cleaning agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composition not only having extremely superior solubility in water but also hardly causing irritating odor, further hardly causing plugging by the insufficiency of solubility, sufficiently manifesting activities for removing soil in a drainpipe, and suitable for cleaning the drainpipe. SOLUTION: This drainpipe-cleaning agent composition comprising sodium percarbonate, an alkaline agent, and preferably a peroxy acid precursor system and/or a metal complex or a heteropolyacid is obtained by using the sodium percarbonate having a time of <=30 sec required for dissolving 90% thereof under sterring 250 rpm with a flag type mixing paddle when 50 g sodium percarbonate is added to 450 mL pure water at a temperature of 20 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an oxygen-based drain pipe cleaning which is excellent in water solubility of the composition during use, does not generate harmful gas during use, and is suitable for cleaning drain pipes. Agent composition.

[0002]

2. Description of the Related Art Dirt in drains around homes is caused by solid food waste and oil in kitchens, and in wash basins and bathrooms by metabolites caused by hair and soap scum, mold and bacteria, or insoluble inorganic substances. There are many things, it can not be easily removed with a normal cleaning agent containing a surfactant as a main component, so in order to remove these stains, conventionally use a chlorine-based or oxygen-based component as a main component, A method of cleaning by the oxidizing power has been adopted.

[0003] However, those containing a chlorine-based component such as sodium hypochlorite as a main component are excellent in detergency of drainage pipes, but have a great risk of damaging eyes and skin due to rebound, etc. When using it with a strong odor, it is necessary to pay attention to sufficient ventilation, and when it is mistakenly used in combination with an acidic cleaning agent, it has disadvantages such as generation of harmful chlorine gas.

[0004] On the other hand, a composition containing an oxygen-based component represented by hydrogen peroxide as a main component does not have a drawback of generating chlorine gas, but does not provide a sufficient cleaning effect by itself, and therefore various activators are used. (For example, JP-A-9-87679).

In addition, when general sodium percarbonate, which is a hydrogen peroxide adduct, is used as the main component of the oxygen-based drain pipe cleaning agent, the solubility in water is poor, so that the cleaning agent remains powdered for a long time. In addition, there is a basic problem that not only the effect is not exhibited, but also if the solution is poured into the drainage pipe without being sufficiently dissolved, it may cause clogging itself (for example, JP-A-62-1792, JP-A-62-1792). 62-1793).

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned circumstances of the prior art, and has excellent solubility in water of a composition, and has no irritating odor.
An object of the present invention is to provide a composition suitable for washing drain pipes, which does not cause clogging due to insufficient solubility and sufficiently exerts an effect of removing dirt from the drain pipe.

[0007]

DISCLOSURE OF THE INVENTION The present inventors have developed a composition which is extremely excellent in solubility in water, has a strong drainage pipe removing ability, and has no irritating odor. As a result of intensive studies, the above object has been achieved by combining sodium percarbonate having specific physical properties with an alkali agent, preferably by further blending a peroxyacid precursor system and / or a metal complex or a heteropolyacid. The present inventors have found that the present invention can be performed, and have completed the present invention based on this finding.

That is, according to the present invention, first, in a drain pipe cleaning composition containing at least (A) sodium percarbonate and (B) an alkali agent, the sodium percarbonate has a temperature of 20 ° C. 50 g of pure water is added to 450 ml of pure water, and the time required for the dissolution rate to reach 90% when stirring with a flag-type stirring blade at 250 rpm is within 30 seconds or less. . Second,
The drain pipe cleaning composition according to the first aspect, which comprises (C) a peroxy acid precursor system and / or (D) a metal complex or a heteropoly acid.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. The drain pipe cleaning composition of the present invention contains at least (A) sodium percarbonate and (B) an alkali agent [preferably further (C) a peroxyacid precursor system and / or (D) a metal complex or Heteropoly acid is contained] In the drain pipe cleaning composition, 50 g of the sodium percarbonate is added to 450 ml of pure water at a temperature of 20 ° C., and the dissolution rate becomes 90% when stirred with a flag-type stirring blade at 250 rpm. The arrival time is within 30 seconds.

In the present invention, examples of the sodium percarbonate used as the component (A) include sodium hydrogen carbonate adduct having specific physical properties. That is, 50 g of sodium percarbonate was added to 450 ml of pure water at a temperature of 20 ° C., and the dissolution rate (calculated from the electric conductivity) when stirring at a rotation speed of 250 rpm using a flag type stirring blade having a diameter of 2 × 3 cm was obtained. It is necessary to use sodium percarbonate whose time to reach 90% is within 30 seconds. More preferably, 2
Within 5 seconds. The time to reach 90% dissolution is 30
If the time is longer than seconds, the solubility of the granular composition in water deteriorates, and problems such as powder residue, deterioration of performance, and clogging of drain pipes occur.

Specific examples of the above-mentioned fast-dissolving sodium percarbonate used in the present invention include commercially available products such as SPC-Q1, SPC-Q2 and SPC-Q manufactured by Mitsubishi Gas Chemical Company.
3, SPC-Q4 and the like.

The content of the sodium percarbonate is not particularly limited, but is preferably 1 to 2 in the drain pipe cleaning composition.
0% by weight, preferably 3 to 10% by weight.

In the present invention, examples of the alkaline agent used as the component (B) include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkali metal carbonates such as sodium carbonate and potassium carbonate, and ammonium carbonate and the like. Examples include carbonates, alkali metal silicates such as sodium silicate and potassium silicate, and silicates such as ammonium silicate. Among them, particularly preferred are sodium carbonate,
Potassium carbonate, sodium silicate and potassium silicate.

Although the content of the alkali agent is not particularly limited, it is 10 to 95% by weight, preferably 30 to 90% by weight in the drain pipe cleaning composition.

If necessary, alkali metal sulfates such as sodium sulfate, potassium sulfate and lithium sulfate; ammonium sulfate; alkali metal bicarbonates such as sodium bicarbonate, potassium bicarbonate and lithium bicarbonate; ammonium bicarbonate and the like are blended. I can do it.

In the present invention, examples of the peroxyacid precursor system used as the component (C) include those which use hydrogen peroxide together with sodium percarbonate which is produced in a liquid and which produces an organic peracid in a bath. . Specifically, acyl phenol sulfonate, acyl alkyl phenol sulfonate, acyl phenol carboxylate,
Esters such as acylated citrates, acylalkylphenol carboxylates, esters of aromatic divalent carboxylic acids with alcohols having quaternized amines, and the like;
Sodium-4-benzoyloxybenzenesulfonate, sodium-1-methyl-2-benzoyloxybenzene-4-sulfonate, sodium nonanoyloxybenzenecarboxylate, sodium decanoyloxybenzenecarboxylate, acetyltriethylcitrate, 2- (4 -Methoxycarbonylbenzoyloxy) -N, N, N-trimethylethanaminium methosulfate and the like.

Further, acylamides include N, N,
N ′, N′-tetraacetylethylenediamine, and quaternary ammonium-substituted peroxyacid precursors include:
N, N, N, -trimethylammonium toluyloxybenzenesulfonate, 2- (N, N, N-trimethylammonium) ethyl-4-sulfophenyl carbonate and the like can be mentioned.

The content of the peroxyacid precursor system is not particularly limited, but is 1 to 20% by weight, preferably 3 to 10% by weight in the drainage pipe cleaning composition.

It is very preferable to further mix (D) a metal complex or a heteropolyacid with the drain pipe cleaning composition of the present invention, because the drain pipe stains, in particular, the ability to remove hair are improved. In this case, examples of the metal complex used as the component (D) include those in which a ligand is bound around a central metal. Specifically, bidentate ligands such as pyridine and ethylenediamine, tridentate or more planar ligands such as terpyridine and porphyrin, tridentate or more steric ligands such as cyclic amines, and ligands such as dinuclear defined ligands and the like One in which a ligand is bonded to a metal is exemplified.

Here, examples of the central metal include transition metals, and among them, V, Cr, Mn, Fe, C
o, Ni, Cu, Zn, Mo, Tc, Ru, Rh, P
II to VI selected from d, W, Re, Ir, Pt, and Au
Transition metals in the I-valent oxidation state are preferred.

The metal complex having these ligands may be formed in advance or formed in a drain cleaner composition bath. The metal complex having these ligands may be mononuclear or polynuclear. Depending on the type of ligand and the oxidation state of the metal, a binuclear or polynuclear metal complex can be formed. In the complex, the coordinating species and / or the bridging species form a bridge between the metal centers.

Specific examples of the metal complex include those shown in Table 1 below.

[0023]

[Table 1]

The content of these metal complexes is not particularly limited, but may be 0.01 to 1 in the bath for cleaning the drain pipe cleaning composition.
000 ppm, preferably 1 to 500 ppm.

In the present invention, a heteropolyacid may be used as the component (D). Examples of the heteropolyacid include a polynuclear complex in which two or more inorganic oxyacids are condensed, and a salt thereof. Can be

As the central element of the heteropolyacid, group III to group VI elements in the periodic table, especially B, Si, P, S, V,
Nb, Ta, Cr, Mo, W are mentioned. In the present invention, it is necessary to use a heteropolyacid containing two or more of these metals.

Specific examples of these compounds include phosphomolybdic acid, phosphotungstic acid, silico-molybdic acid,
Examples thereof include silicotungstic acid, phosphorus tungsto molybdic acid, phosphorus vanad molybdic acid, phosphorus vanado tungstic acid, and a sodium salt or an ammonium salt thereof.

The content of these heteropolyacids is not particularly limited, but is 0.01 to 0.01% in the drain pipe cleaning composition.
It is 1000 ppm, preferably 1 to 500 ppm.

The drain pipe cleaning composition of the present invention may optionally contain a surfactant, a builder, a radical scavenger, a chelating agent, a thickener, an alcohol, and the like, for the purpose of improving storage stability and usability. Flavors, dyes, enzymes and the like can be appropriately blended.

[0030]

Next, the present invention will be described in more detail by way of examples, which should not be construed as limiting the present invention.

The components and symbols in each table have the following meanings, and various sodium percarbonates, TPDC, B and C are synthetic products. PC-1; Sodium percarbonate SPC-Q4 Mitsubishi Gas Chemical Company PC-2; Sodium percarbonate SPC-Q3 Mitsubishi Gas Chemical Company PC-3; Sodium percarbonate SPC-Q2 Mitsubishi Gas Chemical Company PC-4; Sodium carbonate SPC-Q1 Mitsubishi Gas Chemical Co., Ltd. PC-5; Sodium percarbonate SPC-G Mitsubishi Gas Chemical Co., Ltd. PC-6; Sodium percarbonate SPC-D Mitsubishi Gas Chemical Co., Ltd. sodium orthosilicate; Mitaka Chemical Co., Ltd. Potassium: TAED manufactured by Asahi Glass Co., Ltd .: N, N, N ′, N′-tetraacetylethylenediamine; TPDC manufactured by Hoechst: 2- (4-methoxycarbonylbenzoyloxy) -N, N, N-trimethylethanaminium methosulfate A : [Ru (OH) (NH ₃ ) ₄ (NO)] (NO ₃ ) ₂ ;
NECHEMCAT B: [Mn ₂ (μ-O) ₃ (Me-TACN) ₂ ] (P
F ₆ ) ₂ C: [Co ₂ (μ-OH) ₃ (Me-TACN) ₂ ] (C
lO ₄ ) ₃ D: phosphorus vanadomolybdic acid; Nippon Shinkin Co., Ltd. E: phosphomolybdic acid; Nippon Shinkin Co., Ltd. F: sodium phosphomolybdate; Nippon Shinkin Co., Ltd. G: lintungstomolybdic acid; H: phosphotungstic acid; Nippon Shinkin

The dissolution time, the effect of removing stains from the drain pipe, the undissolved undissolved powder and the absence of irritating odor in each example were measured as follows.

(A) Dissolution time: 450 ml of pure water at a temperature of 20 ° C. is placed in a 500 ml beaker and stirred with a glass stirring rod having a 2 × 3 cm flag-shaped stirring blade (250 rpm).
m, 2 cm from the bottom). Sodium percarbonate sample 5
0 g was added, and the conductivity of the aqueous solution was measured. The value at which the conductivity reached the maximum value was defined as the dissolution rate of 100%. From there the dissolution rate 90
The time at the% point was measured and defined as the dissolution time (second).

(B) Stain removal effect of drain pipe: A model stain obtained by mixing 5 g of hair and 20 g of soap scum is adhered to the drain pipe of the bathroom, and a solution obtained by stirring 20 g of the cleaning agent for 30 seconds in 180 ml of water is poured. After standing for 1 minute, the sample was rinsed with 1 liter of water and judged. In addition, it judged on the following evaluation criteria.

[0035]

(C) Undissolved residue of undissolved powder: Before performing the stain removal effect test on the drain pipe, the residual property of the undissolved powder derived from the detergent component was visually determined before rinsing with water. In addition, it judged on the following evaluation criteria.

[0037]

(D) No irritating odor: When performing a stain removal effect test of a drain pipe, the odor one minute after adding each cleaning agent,
The evaluation was made according to the following evaluation criteria. The test was performed by five people.

[0039]

Examples 1 to 6 and Comparative Examples 1 and 2 Sodium percarbonate and an alkaline agent shown in Table 2 were mixed with water, and the dissolution time, the effect of removing stains from the drain pipe, the undissolved undissolved powder, and the irritating odor Was tested. As for the dissolution time, sodium percarbonate alone was dissolved in water (10
% Concentration). Table 2 shows the results.

[0041]

[Table 2]

Examples 7 to 13 Sodium percarbonate, an alkali agent, a peroxyacid precursor system, a metal complex and the like shown in Table 3 were mixed with water, and the dissolution time, the effect of removing dirt from a drain pipe, and the dissolution of undissolved powder A test for remaining and no irritating odor was conducted. The dissolution time is a value when sodium percarbonate alone was dissolved in water (10% concentration). Table 3 shows the results.

[0043]

[Table 3]

Examples 14 to 20 Sodium percarbonate, an alkali agent, a peroxyacid precursor system, a metal complex, and the like shown in Table 4 were mixed with water, and the dissolution time, the effect of removing stains from a drain pipe, and the dissolution of undissolved powder A test for remaining and no irritating odor was conducted. The dissolution time is a value when sodium percarbonate alone was dissolved in water (10% concentration). Table 4 shows the results.

[0045]

[Table 4]

Examples 21 to 28 Sodium percarbonate, peroxyacid precursor system, heteropolyacid, alkali agent and the like shown in Table 5 were mixed with water, dissolution time, water pipe stain removal effect, undissolved powder dissolution. A test for remaining and no irritating odor was conducted. For the dissolution time, sodium percarbonate alone was dissolved in water (10% concentration).
The hour value. Table 5 shows the results.

[0047]

[Table 5]

From the results shown in Tables 2 to 5, the drain pipe cleaning composition of the present invention is excellent in solubility in water, so that there is no deterioration in performance due to undissolved powder, no irritating odor, and harmful. Since there is no danger of generating a gas, it is understood that the material is suitable as a wastewater cleaning agent. In particular, when a peroxy acid precursor system and a metal complex (or heteropoly acid) are further blended, a very high drain pipe dirt removal ability is exhibited.

[0049]

The drain pipe cleaning composition of the present invention is excellent in solubility in water, so that there is no deterioration in performance due to undissolved powder, no irritating odor, and harmful gas is generated during use. Since there is no danger, it is suitable as a drain cleaner. In addition, since a peroxy acid precursor system, a metal complex or a heteropolyacid is blended, the drain pipe has a high ability to remove stains from the drain pipe, and thus is very suitable as a drain pipe cleaning agent.

Continued on the front page (51) Int.Cl. ⁶ Identification code FI C11D 7:32 7:34 7:10) (72) Inventor Takamichi Hasegawa 1-3-7 Honjo, Sumida-ku, Tokyo Lion Corporation Inside

Claims (2)

[Claims] 1. At least (A) sodium percarbonate;
(B) In a drainpipe cleaning composition containing an alkali agent, the sodium percarbonate contains 450 mL of pure water at a temperature of 20 ° C.
50 g per ml, and a flag type stirring blade 250 rpm
Wherein the time when the dissolution rate reaches 90% when the mixture is stirred is within 30 seconds. 2. The drainpipe cleaning composition according to claim 1, further comprising (C) a peroxyacid precursor system and / or (D) a metal complex or a heteropolyacid.