JPH09194885A - Bleacher/detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a bleacher/detergent composition having an excellent performance of removing stains and having high bleaching power by mixing a specified bleacher base compound with a specified bleacher activator and a plurality of enzymes. SOLUTION: This composition comprises 1-50, desirably 2-20wt.% oxygenic bleaching base compound (e.g. sodium percarbonate) which generates hydrogen peroxide in water, 0.5-15, desirably 1-12wt.% bleacher activators represented by formula I (wherein R1 is a 10-18C alkyl or alkenyl; M is H or a cation which imparts water solubility to the bleacher activator and/or formula II (wherein R2 is a 7-18C alkyl or alkenyl), 0.1-5, desirably 0.2-3wt.% protease (e.g. Durazyme (R), a bleaching-resistant enzyme) and 0.01-5, desirably 0.02-3wt.% lipase (e.g. Lipolase (R)).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a bleaching detergent composition having excellent bleaching power.

[0002]

2. Description of the Related Art At present, bleaching agents and bleaching detergents for clothing include:
Oxygen-based bleaching bases such as sodium percarbonate and sodium perborate are mainly used. However, since sufficient bleaching performance cannot be obtained with these bases alone, organic peracid precursors such as TAED (tetraacetylethylenediamine) and OOBS (sodium octanoyloxybenzenesulfonate) have come to be used in combination. It was These organic peracid precursors react with hydrogen peroxide compounds such as sodium percarbonate to generate highly bleaching organic peracids, effectively removing stains such as food stains and yellowing on clothing. be able to. However, improvements in bleaching power are even more desirable. On the other hand, it is well known that an enzyme such as amylase, protease, cellulase, lipase or the like is blended in order to obtain a cleaning composition having an improved cleaning power against stains on clothes (Japanese Patent Publication No. 47-45).
No. 802, No. 48-30646, JP-A-47.
-3733, 56-129298, and JP-A-2-178397).

[0003]

The present invention aims to realize a bleaching detergent composition having a high bleaching power.

[0004]

Means for Solving the Problems As a result of intensive studies on the further improvement of the cleaning effect for removing stains and stains on clothing, the present inventors have found that the enzyme lipase is different from the other enzyme protease. It has been found that the combined use of an oxygen-based peroxide and an organic peracid precursor makes it possible to exhibit higher stain stain removal performance than before, and the present invention has been completed based on this finding. This is because blending lipase into a bleaching detergent composition works effectively against oil and fat components in complex stains such as food stains and yellowing, and is effective due to a synergistic action with a bleaching base and protease. It is believed that this is because it works in a physical manner.

That is, the bleaching detergent composition of the present invention comprises
(A) Oxygen-based bleaching base compound capable of generating hydrogen peroxide in water: 1 to 50% by weight, and (b) the general formula (I) shown below.
And a bleach activator represented by the general formula (II): 0.5
~ 15% by weight,

Embedded image (R ₁ : C 10-18 alkyl or alkenyl group R ₂ : C 7-18 alkyl or alkenyl group M: hydrogen or a cation that imparts water solubility to the bleach activator) (c) Protease: 0.1 to 5% by weight and (d) lipase: 0.01 to 5% by weight.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As the oxygen-based bleaching base compound of the component (a), a compound that generates hydrogen peroxide in water is used, and sodium percarbonate and sodium perborate are typical. The oxygen-based bleaching base compound as the component (a) is preferably incorporated in the bleaching detergent composition of the present invention in an amount of 1 to 50% by weight, more preferably 2 to 20% by weight. As the bleach activator of the component (b) of the present invention, those represented by the following general formula (I) or general formula (II) are used.

[0007]

Embedded image Here, R ₁ is an alkyl group or alkenyl group having 10 to 18 carbon atoms, R ₂ is an alkyl group or alkenyl group having 7 to 18 carbon atoms, and M is general formula (I) or general formula (II).
Is a cation that forms a water-soluble salt such as hydrogen, an alkali metal such as sodium or potassium, or a substituted or unsubstituted ammonium salt such as an alkanolamine that imparts water solubility to the compound.

In the general formula (I) or (II), R
₁ -COO- or R ₂ -SO ₃ against -COO-
The respective bonding positions of the benzene ring of M and -COOM are
It may be in the ortho position, the meta position, or the para position, but is preferably the para position. The bleach activator of the component (b) of the present invention is a compound of the general formula (I) in which (B ₁ ) R ₁ has 11 carbon atoms and (B ₂ ) R ₁ has 13 carbon atoms. (B ₁ ) / (B ₂ ) = 100/0 to 5 by weight ratio with compound
It is desirable that the content is 0/50, preferably 100/0 to 80/20.

The bleach activator of the component (b) of the present invention is a compound of the general formula (II) in which (B ₃ ) R _{2 has} a carbon number of 9 and (B ₄ ) R _{2 has} a carbon number of In a weight ratio of (B ₃ ) / (B ₄ ) = 100/0 to 50/5
It is desirable that the content is 0, preferably 100/0 to 80/20. If these ratios are less than 50/50, the effect of improving the bleaching power and the storage stability of the oxygen-based bleaching base will be reduced.

The bleaching activator of the component (b) of the present invention can be used as a granulated product by using a binder such as polyethylene glycol (PEG), an anionic surfactant and a nonionic surfactant. The bleach activator as the component (b) is contained in the bleaching detergent composition of the present invention in an amount of 0.5 to 15% by weight.
It is suitable to be blended, preferably 1 to 12% by weight.

Examples of the protease as the component (c) include commercially available alcalase, esperase, savinase, durazyme, maxatase, maxacalc, maxapem, purafect, opticlean, opticlean M plus, optimase, biosum, kazusase, and the like. , Bacillus sp. Y, which is a strain described in Japanese Examined Patent Publication No. 03-79987.
Strain (Microtechnological Research Institute No. 8088), Bacillus sp. P strain (Microtechnical Research Institute No. 8088)
90), Bacillus S
p. ) Alkaline protease produced by strain K (Microtechnological Research Institute No. 8091), Bacillus sp. Strain X (Microtechnical Research Institute No. 8092), or alkali produced by the above-mentioned bacterial strain You may use the alkaline protease obtained by expressing the gene which codes a protease. These may be used alone or in combination of two or more. These proteases are usually preferably contained in the composition in an amount of 0.1 to 5% by weight,
More preferably, about 0.2 to 3% by weight can be blended. If the amount is less than 0.1% by weight, it does not contribute to the improvement of the bleaching power, while if it is more than 5% by weight, the effect is not improved.

As the protease of the present invention, a bleach-resistant protease is more preferable because of its stability in a detergent and a washing liquid containing a bleaching agent and a bleaching activator. As the bleaching-resistant protease of the present invention, a protease usually used for bleaching resistance can be used. More specifically,
Among the above-mentioned proteases, "Durazyme" manufactured by Novo Industry Co., "Maxapem" manufactured by Gist Co., Ltd. and the like can be mentioned. These bleach-resistant proteases can be used alone or in combination of two or more kinds.

Examples of the lipase as the component (d) include commercially available lipolase, luma fast and the like. These lipases may be used alone or in combination of two or more. The lipase of the present invention is incorporated in the bleaching detergent composition of the present invention in an amount of 0.01 to 5% by weight, preferably 0.02 to 3% by weight. If this blending amount is less than 0.01% by weight,
It does not contribute to the improvement of the bleaching power, and on the other hand, the effect is not improved even if it is compounded in excess of 5% by weight.

In the bleaching detergent composition of the present invention, appropriate optional components can be blended, and if necessary, anionic surfactant, nonionic surfactant, inorganic / organic builder, anti-soil redeposition agent, protease, Enzymes other than lipase, colorants, fragrances, fluorescent agents, etc. are used. These are powder-blended in the bleaching detergent composition of the present invention by granulating each other or as they are, as in the case of conventional granular detergents for clothes and the like.

The enzymes include hydrolases, oxidases,
Reductase, transferase, isomerase, ligase and the like can be added. More preferably, keratinase, esterase, cellulase, hemicellulase,
Examples include amylase, pullulanase, pectinase, cutinase, glucosidase, glucanase, glucose oxidase, aldehyde oxidase, alkanol oxidase, cholesterol oxidase, peroxidase, myeloperoxidase, and laccase.

Examples of cellulases include commercially available cellzymes and the like, and Microcosm Research Institute No. 1138 and No. 1139.
No. 1140 No. 1141 No. 2306 No. 6
582, 8872, 7620, 7621
No., and FERM-9008, FERM
You may use the cellulase produced from -9011 etc.

[0017]

According to the present invention, it is possible to improve the bleaching power of a bleaching detergent composition by combining an oxygen-based bleaching base compound with a specific bleaching activator, and further combining a protease and a lipase. You can

[0018]

[Examples] Bleaching detergents having various compositions were prepared and the bleaching power was evaluated by the following method. (1) Preparation of Model Yellowed Dirty Cloth A non-fluorescent cotton knitted cloth was dipped in a 2% benzene solution of triolein oil, air-dried, and then heat-treated at 100 ° C. for 80 hours to be used as a model yellowed dirty cloth.

(2) Evaluation of Bleaching Power Using a washing machine, 3 ° DH hard water, bath volume 30 L, bath ratio 1: 3
Under the conditions of 0, bleaching detergent concentration of 0.0667%, and temperature of 25 ° C., 10 model yellowed dirty cloths (5 × 5 cm) were put, washed for 10 minutes, and dehydrated for 1 minute. Then 3 ° D
After rinsing with water at 25 ° C. for 25 minutes for 3 minutes and dehydration for 1 minute, the reflectance of the object to be washed was measured by Σ90 manufactured by Nippon Denshoku Co., Ltd., and the bleaching rate was calculated by the following formula (a). .

[0020]

[Equation 1]

(3) Bleach Activator Used The structures of the bleach activators A to F incorporated are shown in the general formula (III) of the following Chemical Formula 4 and in Table 1.

Embedded image

[0022]

[Table 1] Table 1: Structure activator of the bleach activator No. RX AC ₁₁ H ₂₃ SO ₃ Na BC ₁₃ H ₂₇ SO ₃ Na CC ₉ H ₁₉ COOH DC ₁₁ H ₂₃ COOH E C ₉ H ₁₉ COONa FC ₁₁ H ₂₃ COONa

(4) Preparation of bleaching detergent composition and evaluation results (1) Method for producing bleaching activator particles The kneader body manufactured by Kurimoto Co., Ltd. S-1KRC kneader was used and the kneader body was heated at 50-80 ° C. Heat to 70g activator and PEG60
00 30 g was added as powder and kneaded. Then, rod-shaped particles having a length of 10 to 100 mm were obtained through a mesh plate having 20 to 40 holes having a diameter of 0.8 mm at the outlet. Next, cold air was applied to the rod-shaped particles to reduce the temperature to 40 ° C. or lower, and then the particles were crushed to obtain bleaching activator particles having a length of 1 to 5 mm.

(2) Method for producing detergent A detergent slurry having a solid content of 60% is prepared by using the components shown in Tables 2, 3 and 4 excluding nonionic activator and enzyme, sodium percarbonate and bleach activator particles. Was dried at a hot air temperature of 200 to 280 ° C. to a water content of 5% using a countercurrent spray dryer to obtain a spray dried product. Then, add a spray-dried product, a nonionic activator, and if necessary, water to a high-speed granulator (F
S-GS55 type: manufactured by Fukae Kogyo Co., Ltd., was stirred and granulated, and then powdered with an enzyme (protease and lipase), sodium percarbonate and bleach activator particles to give a bleaching detergent composition. The particles thus obtained had an average particle size of 500 microns and a bulk density of 0.75 to 0.90 cm ³ .
(In addition, after adding the bleaching activator particles and sodium percarbonate, an enzyme, and a nonionic activator, the bleaching detergent composition is 100%
Sodium carbonate in the slurry was adjusted so as to be wt% and dried. )

[0025]

[Table 2]Table 2: High bulk density bleaching detergent composition (bulk density: 0.8 g / cc)  Detergent a Detergent b Detergent c Detergent d Detergent e Detergent f Composition (wt%) LAS-Na 20 15 10 0 20 0 AS-Na 10 0 0 0 0 0 α-SF-Na 0 10 15 0 0 15 AOS-K 0 5 0 0 10 5 Soap 5 5 5 5 5 5 Nonionic surfactant 5 5 5 20 5 5 Amorphous aluminosilicate 5 0 0 5 1 0 Zeolite (4A type) 20 20 20 20 20 20 Potassium carbonate 0 5 5 0 5 5 Polyethylene glycol 2 2 2 2 2 2 Poly Sodium acrylate 1 1 1 1 1 1 Sodium percarbonate 10 10 10 10 10 10 Bleach activator Protease shown in Table 3 and Table 4 Lipase shown in Table 3 and Table 4 Lipase shown in Table 3 and Water content shown in Table 4 5 5 5 5 5 5 Sodium carbonate Remainder Remainder Remainder Remainder Remainder LAS-Na: C_Ten~ C₁₄Straight chain sodium alkylbenzene sulfonate AS-Na: C₁₂~ C₁₄Sodium alkylsulfate α-SF-Na: C₁₂~ C₁₈Α-Sulfo fatty acid methyl ester sodium AOS-K: C₁₄~ C₁₈Α-olefin sulfonate potassium soap: C₈~ C₁₈Fatty Acid Sodium Nonionic Surfactant: C₁₂~ C₁₆Ethylene oxide average 9 mol adduct of alcohol of polyethylene glycol: weight average molecular weight 6000 sodium polyacrylate: weight average molecular weight 5000

[0026]

[Table 3]Table 3: Evaluation results (1) Example Comparative example Sample No. 1 2 3 4 5 6 7 8 9 10 Detergent used a a a a b b b a a b Bleaching structure used A A B C D E F A A E Activator (%) 5 5 5 5 5 5 5 5 5 5 5 Protease Durazyme (%) 1 0 1 1 1 1 1 1 1 0 1 Maxapem (%) 0 1 0 0 0 0 0 0 0 1 0 Lipase Lipolase (%) 1 1 1 1 1 1 1 1 0 0 0 Bleach rate (%) 40 40 35 45 35 40 35 25 25 20 Durazyme: Durazyme 6.0T (Novo Industry) Maxapem: Maxapem CX (Gist) Lipolase: Lipolase 100T (Novo Industry)

[0027]

[Table 4]Table 4: Evaluation results (Part 2) Example Comparative example Sample No. 11 12 13 14 15 16 17 18 19 20 Detergent used Bleaching structure used AC AC AC CC AC Activator (%) 5 5 5 5 5 5 5 5 5 5 5 Protease Durazyme (%) 1 1 1 1 1 1 1 1 1 1 1 1 Maxapem (%) 0 0 0 0 0 0 0 0 0 0 0 0 Lipase Lipolase (%) 1 1 1 1 1 1 1 1 0 0 0 Bleach rate (%) 40 45 35 35 40 45 45 25 20 25 Durazyme: Durazyme 6.0T (Novo Industry) Maxapem: Maxapem CX (Gist) Lipolase: Lipolase 100T (Novo Industry)

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display area C11D 3:20 3: 386)

Claims (1)

[Claims] 1. An oxygen-based bleaching base compound capable of generating hydrogen peroxide in water: 1 to 50% by weight, and (b) represented by the general formula (I) and the general formula (II) of the following chemical formula 1. Bleach activator: 0.5 to 15% by weight, (R ₁ : C 10-18 alkyl or alkenyl group R ₂ : C 7-18 alkyl or alkenyl group M: hydrogen or a cation that imparts water solubility to the bleach activator) (c) Protease: Bleaching detergent composition containing 0.1 to 5% by weight and (d) lipase: 0.01 to 5% by weight