JPH0543894A - Bleaching agent and bleaching detergent composition - Google Patents

Abstract

PURPOSE:To obtain a bleaching agent and a bleaching detergent composition having a stable bleaching effect, not decreasing in a bleaching effect even when stored for a long time and improved in powder properties by using granules prepared by granulating a mixture of phthalimidopercarboxylic acid and phthalimidocarboxylic acid in a specified ratio with a binder. CONSTITUTION:The title agent and composition are prepared from granules prepared by granulating a mixture of a compound (a) of formula I (wherein n is an integer of 1-15; and M is H, an alkali metal or an alkaline earth metal) with a compound (b) of formula II (wherein n and M are as defined above) in an (a) to (b) weight ratio of 95/5 to 50/50 with a binder of an m.p. of 30 deg.C or above.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bleaching composition, and more particularly to a bleaching agent and a bleaching detergent composition containing a phthalimide percarboxylic acid having improved stability during storage and powder properties.

[0002]

BACKGROUND OF THE INVENTION Phthalimide percarboxylic acid has a strong oxidizing power and is expected to be used as a bleaching agent base (JP-A-2-196771 and JP-A-2-1473).
No. 2-76850). However, the study of incorporating such a compound as one component of a bleaching agent composition or a bleaching detergent composition has not yet been sufficiently conducted.

[0003]

Therefore, the present inventors have
As a result of diligent research on a bleaching agent and a bleaching detergent composition containing a phthalimide percarboxylic acid which can be supplied to the market as a product, a phthalimide percarboxylic acid and a phthalimide carboxylic acid were mixed at a specific weight ratio. By blending the mixture by granulating the mixture with a binder, a bleaching agent and a bleaching detergent composition having a stable bleaching effect, less deterioration of the bleaching effect even after long-term storage, and powder properties are not deteriorated The inventors have found that they can be obtained and completed the present invention.

That is, the present invention provides (a) the following general formula (I)

[0005]

[Chemical 3]

[In the formula, n represents an integer of 1 to 15, M represents H or an alkali metal atom or an alkaline earth metal atom. ] And a compound represented by the following general formula (II)

[0007]

[Chemical 4]

[In the formula, n represents an integer of 1 to 15, M represents H or an alkali metal atom or an alkaline earth metal atom. ]
The compound represented by the formula (a) / (b) in a weight ratio of 95/5 to 50 /
A bleaching agent and a bleaching detergent composition are prepared by blending a granulated product obtained by granulating a mixture containing 50 parts by weight with a binder having a melting point of 30 ° C. or higher.

The (a) component phthalimido percarboxylic acid used in the present invention has the following general formula (I):

[0010]

[Chemical 5]

[In the formula, n represents an integer of 1 to 15, M represents H or an alkali metal atom or an alkaline earth metal atom. ] Among them, the compound represented by the formula (I) in which n is 5 and M is H is particularly preferable because of its excellent stability and biodegradability.

Further, the phthalimidocarboxylic acid of the general formula (II) has a particularly good stabilizing effect when it has the same n number as the phthalimidopercarboxylic acid of the general formula (I) used.

The phthalimidopercarboxylic acid (a) and the phthalimidocarboxylic acid (b) are (a) / (b) = 95 in the granulated product.
It is blended in a weight ratio of / 5 to 50/50, preferably 90/10 to 60/30. The total amount of (a) + (b) in the granulated product is 15 to 90% by weight. When the ratio of the phthalimidocarboxylic acid is small, a sufficient stabilizing effect cannot be obtained, and even when the ratio is large, the stabilizing effect is saturated.

From the viewpoint of storage stability of the granulated product, the phthalimido percarboxylic acid (a) and the phthalimido carboxylic acid (b) have a melting point of 30 ° C. or higher, preferably 45 ° C. or higher, and particularly preferably 50. A granulated product is used by using a binder at 90 ° C, for example, one or more compounds selected from polyethylene glycol, polyoxyethylene alkyl ethers and higher fatty acids as a binder. These binders are preferably contained in the granulated product in an amount of 2 to 30% by weight, particularly preferably 5%.
It is desirable to use ~ 20% by weight.

The method for producing the granulated product is not particularly limited, but for example, phthalimidopercarboxylic acid (a) and phthalimidocarboxylic acid can be used at a temperature above the melting point of the binder.
(b) A method of mixing and stirring with powder, a method of mixing and stirring while adding or spraying a binder high-concentration aqueous solution or a melt. If necessary, in order to reduce the impact sensitivity of the phthalimido percarboxylic acid and to improve the storage stability, a diluent inert to the phthal imide percarboxylic acid is used.
Granulated in the coexistence of 0.5 to 70% by weight. Examples of the diluent include sulfates, bisulfates, carbonates, bicarbonates, nitrates, orthophosphates, pyrophosphates, polyphosphates, cellulosics, and starches. Particularly preferred as the diluent is an average water content of 5 which can take water of crystallization.
% Or less of substantially anhydrous substance, anhydrous sodium carbonate, anhydrous sodium tripolyphosphate, anhydrous sodium pyrophosphate, anhydrous trisodium phosphate, anhydrous sodium metasilicate, anhydrous sodium nitrilotriacetate, anhydrous magnesium sulfate, anhydrous calcium chloride, Examples include anhydrous sodium sulfate and anhydrous sodium citrate. Among them, anhydrous magnesium sulfate, anhydrous calcium chloride, anhydrous sodium sulfate and anhydrous sodium citrate are particularly preferable.

The average particle size thus obtained is 300 to 20
Granules of 00μ, preferably 300-1000μ, are used in the bleach and bleach detergent compositions of the present invention. The granulated product is added as a phthalimido percarboxylic acid in the bleaching agent and the bleaching detergent composition in an amount of 0.5 to 80% by weight, preferably 2 to 60% by weight.

In the bleaching agent and the bleaching detergent composition of the present invention, in addition to the above-mentioned components (a) and (b), common detergent ingredients, for example, the following ingredients can be added. Alkylbenzene sulfonate, alkyl ether sulfate, alkyl sulfate, olefin sulfonate, alkane sulfonate, higher fatty acid salt, anionic surfactant such as α-sulfo fatty acid salt or ester, polyoxyalkylene alkyl or alkenyl ether, Polyoxyethylene phenyl ether,
Nonionic surfactants such as higher fatty acid alkanolamides or alkylene oxide adducts thereof, alkyl glycosides, alkylamine oxides, betaine type amphoteric surfactants, sulfonic acid type amphoteric surfactants, cationic surfactants and other surfactants; Alkaline agents such as silicates, carbonates, sesquicarbonates (Na, K, Mg salts, etc.) and extenders such as sulfates; orthophosphates, pyrophosphates, tripolyphosphates, citrates, isocitrates , Ethylenediaminetetraacetate, nitrilotriacetate, polyacrylate, polyacetalcarboxylate, zeolite and other divalent metal ion scavengers; polyvinyl alcohol, polyvinylpyrrolidone, carboxymethylcellulose, polyethylene glycol, etc. recontamination inhibitors; proteases , Esperase,
Enzymes such as lipase and cellulase; other bleaching agents such as sodium percarbonate and sodium perborate; anti-fading agents such as 2-hydroxyethyliminodiacetic acid salt; other anti-caking agents, bleach activators, antioxidants, Fluorescent dye, bluing agent,
Light activated bleach, fragrance, etc.

[0018]

The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples.

Example 1 Granules (particle size 350 to 710 μm) having the blending composition shown in Table 1 were prepared. That is, phthalimido percarboxylic acid [general formula
N = 5] in (I) and phthalimidocarboxylic acid [general formula
N = 5 in (II)], in the case of the comparative product, a fatty acid was mixed, and polyethylene glycol (weight average molecular weight = 6000, melting point 56
(About 63 ° C.) and mixed granulation. Put 150 g of the obtained granules in a 300 cc plastic bottle with a small gap for air bleeding, store at 40 ° C for 1 month, and then evaluate the storage stability by the following method. The physical properties were used. The results are shown in Table 1.

[0020]

[Equation 1]

(2) Physical properties of powder: ◯: no lump x: lump

[0022]

[Table 1]

Note) * 1 PEG; polyethylene glycol (weight average molecular weight = 60
00, melting point 56-63 ° C.) Example 2 Inventive product 1 and comparative product 1 in Table 1 prepared in Example 1
Further, the ingredients shown in Table 2 were added to prepare a granulated product.
In the table, E 510 is a polyoxyethylene alkyl ether (C ₁₂ / C ₁₃ / C ₁₄ = 21.9 / 52.0 / 26.1) ethylene oxide 10 mol adduct, and E 911 is polyoxyethylene nonylphenyl ether ethylene oxide 11 Is a molar adduct, LAS is dodecylbenzene sulfonate,
These were mixed in advance with sodium carbonate and sodium hydrogen carbonate, impregnated and blended. The same test as in Example 1 was performed using the obtained granulated product. The results are shown in Table 2.

[0024]

[Table 2]

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Claims (1)

[Claims] 1. (a) The following general formula (I): [In the formula, n represents an integer of 1 to 15, M represents H or an alkali metal atom or an alkaline earth metal atom. ] And a compound represented by the following general formula (II): [In the formula, n represents an integer of 1 to 15, M represents H or an alkali metal atom or an alkaline earth metal atom. ] A compound containing the compound represented by (a) / (b) in a weight ratio range of 95/5 to 50/50, and a granulated product obtained by granulating with a binder having a melting point of 30 ° C or higher. A bleaching agent and a bleaching detergent composition.