JPS6363795A - Detergent composition - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to cleaning compositions, and more particularly to cleaning compositions for clothing.

[Conventional technology and problems]

In washing clothes, maintaining or increasing the whiteness of white objects is one of the major requirements, along with removing stains.

There are various possible causes for the decline in the whiteness of clothing, including yellowing due to soap components remaining on clothing after washing, oxidation of sebum components that remain unremoved, and yellowing due to adhesion of iron in tap water. In some cases, oxidative or reductive bleaching is effective as a means of restoring white skin. In addition, many white clothing are surface-treated with fluorescent whitening agents to make the whiteness of the fabric stand out, but as clothing is worn and washed repeatedly, the fluorescent whitening agents may fall off or It undergoes decomposition and loses its effectiveness (.Fluorescent brighteners are added to laundry detergents to compensate for the fluorescent whitening effect lost during washing. The dyeing properties of brighteners on clothing cannot always be said to be sufficient, especially for clothing that has already been treated with fluorescent brighteners. It is difficult to maintain or even improve.

One solution is to increase the amount of fluorescent whitening agent added to the detergent, but in such a case, the fluorescent whitening agent may become uneven, which is rather undesirable.

[Means for solving problems]

As a result of intensive studies to overcome this problem, the inventors of the present invention have developed a method for making proboscis clothing by combining two or more types of alkaline proteases with different bacterial origins and two or more specific types of fluorescent dyes. The present invention was achieved by discovering an excellent white charcoal retaining effect during washing.

That is, the present invention provides a detergent composition containing an enzyme and a fluorescent dye, in which a total of 0.01 to 5% by weight of two or more types of alkaline proteases of different bacterial origin as the enzyme, and the following two types of fluorescent dyes. A cleaning composition characterized in that it contains a total of 0.1 to 1% by weight of a fluorescent dye.

It is already known from US Pat. No. 4,511,490 that detergency is improved by combining two or more types of proteases. However, no brightening effect was observed with a simple enzyme effect amplifier, and such a complementary effect was observed only with the combination of two or more types of proteases and the combination of two or more specific fluorescent dyes.
The present invention has been achieved.

Although the mechanism of the present invention is unknown, it is thought that by washing clothing with a detergent containing two types of 7'o-tease, the adsorption of the two types of fluorescent dyes is promoted by some effect.

The alkaline protease used in the present invention is not particularly limited as long as it is commonly used in detergents.

Preferred proteases used in the present invention are illustrated below.

However, the following examples are not intended to limit the invention.

(1) Alkaline serine protease originating from the genus Bacillus described in JP-A-51-8401 (Novo Industries) (2) Strong alkaline protease originating from the genus Fusarium or Gibberella described in JP-A-46-43551 (Narita Pharmaceutical Co., Ltd.) (3) Alkaline protease originating from the genus Bacillus described in JP-A-46-42956 (Godo Shusei) (4) Alkaline protease originating from the genus Acremonium described in JP-A-54-62386 (Kirin Brewery) (5) Alkaline protease originating from the genus Achromobacter described in JP-A-59-59189 (Wako Pure Chemical Industries) (6) Alkaline protease originating from the genus Bacillus described in JP-A-48-2794 (RIKEN) (7) Kaisho 5
Alkaline protease originating from the genus Bacillus described in No. 0-16435 (RIKEN) (8) JP-A-53-1859
Alkaline protease originating from the genus Bacillus described in No. 4 (RIKEN) (9) Alkaline protease originating from the genus Bacillus described in JP-A-55-46711 (RIKEN)
(10) Alkaline protease originating from the genus Bacillus described in JP-A-57-42310 (Gist-Procades) (11) Alkaline protease originating from the genus Bacillus described in JP-A-56-16200 (Gist-Procades) (12) ) Alkaline protease originating from the genus Bacillus described in JP-A-56-24512 (Gist-Procades) (13) Alkaline protease originating from the genus Bacillus (Sanraku Ocean) described in JP-A-47-1832 (14) JP-A-Sho Alkaline protease originating from the genus Bacillus described in No. 52-35758 (Baxter Trabenol Laboratories) (15) Alkaline protease originating from Bacillus subtilis described in JP-A No. 50-34633 (Nagase Sangyo) (16) Japanese Patent Publication No. 46-41594 (17) Alkaline protease originating from the genus Bacillus described in JP-A No. 58-134990 (Showa Denko) (18) Alkaline protease originating from the genus Bacillus described in JP-A-58-14086 Alkaline protease originating from the genus Bacillus (Gist-Procades) (19) Alkaline protease originating from the genus Bacillus described in JP-A-51-82783 (Gist-Procades) (20) genus Bacillus as described in JP-A-51-125407 (21) Hypoallergenic protease of Bacillus origin described in JP-A-55-39794 (Novo Industries) (22) Serratia as described in JP-A-46-1840 Alkaline protease originating from the genus Acremonium, Cephalosporium, and Aleurismium described in JP-A-48-23989 (Albright & Wilson Limited) (24) Unexamined Japanese Patent Publication No. 1983-
Heat-stable alkaline protease originating from the genus Celmus described in No. 152482 (Amano Pharmaceutical Co., Ltd.) As the alkaline protease, not only purified fractions but also crude enzymes and granulated products thereof can be used.

When used as a granulated product, based on the usual granulation method,
It can be granulated and used together with stabilizers, fillers, extenders, brighteners, binders, coating agents, etc. 2
When granulating more than one type of enzyme, they may be granulated separately, or the enzymes may be mixed to form the same granulated product.

Examples of commercially available enzymes include the following.

(1) Alcalase, (2) Savinase, (3) Esperas8 (Novo Industries) (4) Maxatase, (5) Maxacal (Gist) Procades) (6) API-21 (Showa Denko) (7) Milezyme (Fils Laboratory) (8) Bioplase (Nagase Sangyo) The combination of alkaline proteases of the present invention has different bacterial origins. If there are any, any combination of alkaline proteases and Bacillus [NKS-21 (microorganisms)] may be used without having to set the optimum temperature, pH, etc. Alkaline protease API produced by Koken Yori No. 93)
-21.

When combining two types of enzymes, the mixing ratio is 97
The ratio is preferably 1 to 1/9, and when three or more types of enzymes are combined, it is sufficient that at least two of the enzymes are each contained at least 1/10 of the total amount. If the ratio of enzyme combinations is outside this range, it is difficult to expect the effects of the present invention.

The content of the enzyme in the cleaning composition is preferably 0.01 to 5% by weight; if the content is less than this, the effect of the present invention cannot be expected, and if it is too much, the effect will reach a plateau.

Next, the specific above-mentioned fluorescent dye, which is another essential component of the present invention, will be explained.

The fluorescent dyes used in the present invention are (a) and (b) represented by the following general formulas.

These fluorescent dyes alone do not exhibit the effects of the present invention.

The content of fluorescent dye in the cleaning composition is 0.1 to 1% by weight.
It is practical to use within this range.

In addition to these essential components, the cleaning composition of the present invention contains other known cleaning components, such as surfactants, divalent metal ion scavengers, alkaline agents and inorganic salts, anti-recontamination agents, and bleaching agents. , enzymes, etc. can be used in combination as necessary.

These known cleaning agent components will be explained below.

1) Surfactant Linear alkylbenzene sulfonate having an alkyl group with an average carbon number of 10 to 16, having a linear or branched alkyl group with an average of 10 to 20 carbon atoms, and an average of 035 in one molecule.
Alkyl ethoxy sulfate with ~8 moles of ethylene oxide added, alkyl sulfate having an alkyl group with an average of 10 to 20 carbon atoms, olefin sulfonate having an average of 10 to 20 carbon atoms in one molecule, an average of 10 to 20 carbon atoms per molecule Anionic surfactants such as α-sulfo fatty acid methyl or ethyl ester salts having 20 carbon atoms in one molecule, fatty acid salts having an average carbon number of 10 to 20, average carbon numbers of 10 to 2
Nonionic surfactants such as polyoxyethylene alkyl ether having 0 alkyl group and 1 to 20 moles of ethylene oxide added, higher fatty acid alkanolamide or its alkylene oxide adduct, other betaine type amphoteric surfactants, sulfones. Acid-type amphoteric surfactants, phosphate ester surfactants, cationic surfactants, etc. 2) Divalent metal ion scavengers tripolyphosphate, birophosphate, orthophosphate, crystalline aluminosilicate, nitrilotriacetic acid salt, ethylenediaminetetraacetate, citrate, isocitrate, polyacrylate, polyacetal carboxylate, etc. 3) Alkaline agents and inorganic salts silicates, carbonates, sesquicarbonates, sulfates, etc. 4) Recontamination Inhibitors such as polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl cellulose, etc. 5) Enzymes Cellulase, lipase, amylase, etc. 6) Effective chlorine scavenger or reducing agent in tap water Available chlorine contained in tap water inhibits enzyme activity. To do so, effective chlorine scavengers or reducing agents help stabilize the enzyme.

As available chlorine scavengers, ammonium sulfate, urea,
Guanidine hydrochloride, guanidine carbonate, guanidine sulfamate, 1,000 urea dioxide, monoethanolamine, jetanolamine, triethanolamine, amino acids such as glycine, monosodium glutamate, and proteins such as bovine serum albumin and casein. Examples of reducing agents such as protein hydrolysates, meat extracts, and fish extracts include alkali metal salts such as thiosulfates, sulfites, and dithionites, alkaline earth metal salts, and Rongalite C.

7) Bleach, etc. As a bleaching agent, use sodium percarbonate, sodium perborate, sodium sulfate, sodium chloride hydrogen peroxide adduct, or
Flavors, anti-caking agents, enzyme activators, antioxidants, preservatives, solubilizers, pigments, blue tint agents, and the like can also be added as necessary.

8) Other ingredients commonly used in detergents other than those listed above may also be used as necessary.

When the detergent dough used in the present invention is a powder, one manufactured by a known manufacturing method such as a spray drying method or a granulation method is used, but a detergent dough manufactured by a spray drying method is preferable. used for. The cleaning material made by the spray drying method is produced in the form of hollow particles with a particle size of about 50 to 2000μ by spraying an aqueous slurry of heat-resistant components such as surfactants and builders into a hot space and drying without any particular restrictions on the manufacturing conditions. After the spray drying, components such as fragrances, enzymes, bleaching agents, and inorganic alkali building blocks such as zeolite and soda carbonate may be added.

Further, when the detergent material is a liquid, it may be a homogeneous solution or a non-uniform dispersion system.

〔Example〕

Next, the present invention will be described with reference to Examples, but the present invention is not limited to these Examples.

Example 1 This example was used to improve the whiteness of white clothing after washing.
This shows that the present invention is superior.

l) Table 1 shows the detergent formulation using the detergent, and Tables 2 and 3 show the enzymes and fluorescent dyes used.

2) Adjustment of test cloth Wash 100% cotton knitted underwear using a detergent that does not contain fluorescent dyes in a domestic washing machine at 20°C and 3.5” DH tap water for 10 minutes. The procedure was repeated 10 times.The washed and dried underwear was worn by an adult male for 2 days.The recovered cotton underwear was cut into 10cm x 10cm squares, randomized, and then washed as a set of 5 pieces.

3) Washing conditions and method Five pieces of the above cotton underwear were placed in 200ml of 0.665% detergent solution, immersed for 60 minutes at 30°C, transferred to a turbotometer, brought to 1 liter, and heated at 30°C. 100r
It was washed for 10 minutes at a rotational speed of p-, and after drying, the whiteness was evaluated.

Fluorescent agents used in laundry detergents generally absorb light at 380 nm and emit fluorescence with maximum intensity between 430 and 440 ns+. Therefore, when a xenon lamp is used as the irradiation light containing ultraviolet rays, the fluorescence intensity (whiteness) can be expressed by the Z value having the maximum stimulus value at 440 rv among the tristimulus values X, Y, and Z of the spectrum. Therefore, the amount of fluorescent agent dyeing on clothing was determined by measuring the Z value using a xenon digital colorimeter (Suga Test Instruments H) and determining the difference (ΔZ value) from the Z value of the standard detergent. A ΔZ value of 0.1 or more can be considered a significant difference.

The results are shown in Table 4.

Table 2 Umbrella Table 3 Sanmachi Table 3 Table 4 As shown above, it can be seen that the combination of two types of proteases and a specific fluorescent dye is effective in improving the whiteness of white clothing after washing.

Claims (1)

[Scope of Claims] 1. In a cleaning composition containing an enzyme and a fluorescent dye, a total of 0.01 to 5% by weight of two or more different alkaline proteases of bacterial origin as the enzyme, and the following as the fluorescent dye. A cleaning composition characterized in that it contains two types of fluorescent dyes in a total amount of 0.1 to 1% by weight. (a) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (However, X is ▲There are mathematical formulas, chemical formulas, tables, etc.▼, ▲There are mathematical formulas, chemical formulas, tables, etc.▼, Y is ▲There are mathematical formulas, chemical formulas, tables, etc. ▼、▲Mathematical formula, chemical formula,
(b) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ 2 One type of alkaline protease is Bacillus NKS-
21. The cleaning composition according to claim 1, which is alkaline protease API-21 produced by Bacterium No. 21 (Feikoken Joyori No. 93).