JP5334407B2 - Liquid bleach detergent composition - Google Patents

Description

  The present invention relates to a liquid bleach detergent composition and a bleaching method using the same.

  The dirt on the hard surface of a residence varies depending on the target cleaning surface, and varies. In general, dirt mixed with denatured oil and dust tends to adhere around the kitchen range. For toilets and bathrooms, inorganic and organic substances form insoluble salts and become dirty as they are, or they can be used as a substrate. Bacteria and fungi may grow and become dirty. Among the hard surface stains, dark stains derived from these bacteria and molds are difficult to remove sufficiently with detergents mainly composed of surfactants and abrasives, so chlorine containing hypochlorite System bleach detergents are used.

  Conventional chlorine-based bleach cleaners have shown sufficient effects on tiles, joints, and other dark stains. Recently, in addition to tiles and joints, silicone resin-based materials used in joints between walls and bathtubs. Examples of molds occurring in resin parts such as caulking and soft polyvinyl chloride resin-based packing are increasing, and even conventional bleaching detergents that have been sufficiently effective against tiles and joints It was difficult to bleach and decompose and remove mold generated in these resin parts.

  Patent Document 1 describes a bleaching agent composition containing sodium hypochlorite and potassium hydroxide. Furthermore, it is described that a water-soluble solvent can be blended as an optional component.

  Patent Documents 2 and 3 describe bleaching compositions containing sodium hypochlorite, sodium hydroxide, and organic solvents.

Patent Document 4 describes a bleaching composition containing sodium hypochlorite, alkali metal hydroxide, alkali metal carbonate, and an aqueous solvent.
JP 2001-316700 A JP 2004-149677 A JP 2004-149678 A Japanese Patent Application Laid-Open No. 2005-206762

  However, the bleaching compositions described in Patent Documents 1 to 4 are not satisfactory in terms of environmental load and increase in blending cost due to the large amount of solvent blended. In addition, the bleaching performance of these compositions was not satisfactory particularly with respect to the bleaching performance of mold growing on the resin part.

  An object of the present invention is to provide a liquid bleach detergent composition having excellent bleaching power, particularly a liquid bleach detergent composition exhibiting excellent bleaching power against mold growing on a resin part.

The present invention comprises (a) alkali metal hypochlorite 0.5-5% by mass, (b) alkali metal hydroxide 0.001-3% by mass, and (c) the following formulas (1), (2 ), (3), (4) and a liquid bleaching detergent composition containing 0.01 to 1% by weight of one or more water-soluble solvents selected from (5).
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ]
HO-C _m H _2m -OH (2)
[In Formula (2), m is a number of 2-5. ]
HO-C _p H _2p-1 (OH) -CH ₃ (3)
[In Formula (3), p is a number of 2-4. ]
CH ₃ -C _q H _2q-2 (OH) ₂ -CH ₃ (4)
[In Formula (4), q is a number of 2-3, and one hydroxyl group couple | bonded with one carbon is one. ]
CH ₂ (OH) -CH (OH) -CH ₂ (OH) (5)

The present invention also includes (a) an alkali metal hypochlorite salt and (b) an A agent containing an alkali metal hydroxide, (c) the following formulas (1), (2), (3), (4 ) And B agent containing one or more water-soluble solvents selected from (5) are mixed immediately before use, so that the component (a) is 0.5 to 5% by mass and the component (b) is 0.001. The present invention relates to a bleaching method in which a liquid bleaching agent composition prepared to contain ˜3 mass% and (c) component 0.01 to 1 mass% is brought into contact with an object.
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ]
HO-C _m H _2m -OH (2)
[In Formula (2), m is a number of 2-5. ]
HO-C _p H _2p-1 (OH) -CH ₃ (3)
[In Formula (3), p is a number of 2-4. ]
CH ₃ -C _q H _2q-2 (OH) ₂ -CH ₃ (4)
[In Formula (4), q is a number of 2-3, and one hydroxyl group couple | bonded with one carbon is one. ]
CH ₂ (OH) -CH (OH) -CH ₂ (OH) (5)

The present invention also includes an agent A containing (a) an alkali metal hypochlorite salt (hereinafter referred to as component (a)) and (b) an alkali metal hydroxide (hereinafter referred to as component (b)); c) B agent containing 1 or more types of water-soluble solvent [henceforth (c) component] chosen from general formula (1), (2), (3), (4) and (5) It is a kit for a liquid bleaching agent, which comprises mixing agent A and agent B, and said component (a) 0.5 to 5% by mass, component (b) 0.001 to 3% by mass, c) The present invention relates to a liquid bleach kit for preparing a liquid bleach detergent composition containing 0.01 to 1% by mass of components.
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ]
HO-C _m H _2m -OH (2)
[In Formula (2), m is a number of 2-5. ]
HO-C _p H _2p-1 (OH) -CH ₃ (3)
[In Formula (3), p is a number of 2-4. ]
CH ₃ -C _q H _2q-2 (OH) ₂ -CH ₃ (4)
[In Formula (4), q is a number of 2-3, and one hydroxyl group couple | bonded with one carbon is one. ]
CH ₂ (OH) -CH (OH) -CH ₂ (OH) (5)

  ADVANTAGE OF THE INVENTION According to this invention, the liquid bleach cleaning composition excellent in the bleaching power, especially the liquid bleach cleaning composition which shows the outstanding bleaching power with respect to the mold | fungi which grew in the resin part are provided.

<(A) component)>
Examples of the alkali metal hypochlorite (a) include sodium hypochlorite and potassium hypochlorite, with sodium hypochlorite being particularly preferred. The content of the component (a) in the liquid bleach detergent composition of the present invention is 0.5 to 5% by mass, preferably 1 to 4% by mass, more preferably 2 to 3% by mass. When the content of component (a) is 0.5% by mass or more, sufficient bleaching power is obtained, and when it is 5% by mass or less, good stability is obtained.

<(B) component)>
(B) As an alkali metal hydroxide of a component, sodium hydroxide and potassium hydroxide can be mentioned, Among these, sodium hydroxide is preferable. The content of the component (b) in the liquid bleach detergent composition of the present invention is 0.001 to 3% by mass, more preferably 0.001 to 1% by mass, particularly 0.01 to 1% from the viewpoint of storage stability. Mass% is preferred.

<(C) component)>
Component (c) is a water-soluble solvent containing one or more hydroxyl groups selected from the following formulas (1), (2), (3), (4) and (5).
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ]
HO-C _m H _2m -OH (2)
[In Formula (2), m is a number of 2-5. ]
HO-C _p H _2p-1 (OH) -CH ₃ (3)
[In Formula (3), p is a number of 2-4. ]
CH ₃ -C _q H _2q-2 (OH) ₂ -CH ₃ (4)
[In Formula (4), q is a number of 2-3, and one hydroxyl group couple | bonded with one carbon is one. ]
CH ₂ (OH) -CH (OH) -CH ₂ (OH) (5)

  The water-soluble solvent represented by the formula (1) is a linear primary alcohol, and examples thereof include methanol, ethanol, propanol, n-butanol, and the like. The water-soluble solvent represented by the formula (2) is ethylene. Glycol, 1,3-propanediol, 1,4-butanediol, 1,5-pentanediol, and the like. Examples of the water-soluble solvent represented by the formula (3) include 1,2-propanediol, 1,2- Examples include butanediol, 1,3-butanediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, etc., and 2,3 as the water-soluble solvent represented by the formula (4) -Butanediol, 2,3-pentanediol, 2,4-pentanediol and the like, and from the viewpoint of bleaching performance, a water-soluble solvent selected from the formulas (1) and (2) is preferred. Further ethylene glycol, 1,2-propanediol are preferred. These can be used alone or in combination of two or more.

  The content of the component (c) in the liquid bleach detergent composition of the present invention is 0.01 to 1% by mass, preferably 0.01 to 0.8% by mass, more preferably 0.02 to 0.5%. % By mass.

<(D) component)>
From the viewpoint of improving the bleaching performance, the liquid bleach detergent composition of the present invention is a hydrocarbon group having 8 to 16 carbon atoms among 1 to 3 groups bonded to a nitrogen atom as the component (d). It is preferable to contain the quaternary ammonium compound whose remainder is a C1-C3 alkyl group or a hydroxyalkyl group, or a benzyl group. The component (d) preferably has one alkyl group having 8 to 14 carbon atoms and further 8 to 12 carbon atoms, and the counter anion is preferably a chlorine ion. More preferably, it is represented by the following general formula (d1).

[Wherein, R ¹ is an alkyl group having 8 to 16 carbon atoms, more preferably 8 to 14 carbon atoms, R ² and R ³ are each independently a methyl group or an ethyl group, and R ⁴ is a benzyl group. X ^- is a chloride ion. ]

  The component (d), in particular, the quaternary ammonium type surfactant represented by the above general formula (d1) is a bleach-cleaning agent for stains caused by bacteria and fungi on resin systems that were insufficient in conventional chlorine-based bleaching agents. It is thought that this is because the quaternary ammonium type surfactant helps the contact of the hypochlorite ion with the hydrophobic material or the mold.

The present invention provides an effective liquid bleach cleaning composition for resin-based materials, but when the target resin is a vinyl chloride resin used for window frame packing or the like, R ¹ in the general formula (d1) is a compound having 8 carbon atoms is most effective.

  The content of the component (d) in the liquid bleach cleaning composition of the present invention is preferably 0.005 to 0.5% by mass, more preferably 0.008 to 0.3% by mass, more preferably 0.00. 01 to 0.2% by mass. In this range, it is effective for storage stability and removal of dirt on the resin system.

<Other ingredients>
In the present invention, a surfactant other than the component (d) may be used, but the total amount of the surfactant including the component (d) is 5% by mass or less, preferably 3% by mass or less. More preferably, the content is 2% by mass or less from the viewpoint of storage stability. As the surfactant that can be used in the present invention, surfactants having an alkyl group having 6 to 22 carbon atoms are preferable. Specifically, alkylsulfonates, alkanesulfonates, alkylsulfate esters, alkylbenzenesulfonates. , Alkyl naphthalene sulfonate, alkyl sulfosuccinate, alkyl diphenyl ether disulfonate, alkyl phosphate, polyoxyethylene alkyl sulfate, polyoxyethylene alkyl aryl sulfate, polyoxyethylene alkyl phenyl ether sulfate, etc. One or more amphoteric surfactants such as anionic surfactants (excluding nitrogen-containing anionic surfactants such as amino acid derivatives), alkylamine oxides, carboxybetaines, and sulfobetaines can be mentioned. However, among the above surfactants, anionic surfactants, particularly alkyl sulfonates and alkyl sulfate esters, are electrically bonded to the cationic surfactants in the cleaning liquid. Therefore, when the component (d) is blended, the component (d) / (alkyl) in the composition is selected so as not to inhibit the synergistic effect of the hypochlorite ion [component (a)] and the component (d). The molar ratio of the sulfonate and / or alkyl sulfate ester salt is preferably 0.2 or more, more preferably 0.5 or more, and more preferably 1 or more.

  In the liquid bleach detergent composition of the present invention, the storage stability is increased by adding a hydrotrope agent selected from benzenesulfonic acid substituted with 1 to 3 alkyl groups having 1 to 3 carbon atoms and a salt thereof. To do.

  As other optional components, a fragrance component and a chlorine gas scavenger can be blended. As examples of perfume ingredients that can be blended into hypochlorite systems, reference can be made to JP-A-50-74581 and JP-A-62-205200. Perfume may be used. Usually, the fragrance is contained in the composition in an amount of 0.001 to 0.5% by mass. However, since there is a risk of impairing the stability, care must be taken in determining the blending components and blending amounts. As the chlorine gas scavenger, a compound having one or more aromatic rings in the structure is preferable, and a polyoxyethylene phenyl ether compound or a polyoxyethylene alkylphenyl ether compound is particularly preferable. The chlorine scavenger is usually contained in the composition in an amount of 0.01 to 1% by mass. However, there is a risk of impairing the stability, so care must be taken in determining the blending components and blending amount.

  The balance of the composition of the present invention is water, and ion-exchanged water or distilled water from which a small amount of metal ions and the like are removed is preferable in terms of storage stability. The water content is preferably 80 to 98% by mass, more preferably 90 to 98% by mass in the composition from the viewpoint of storage stability. Moreover, it is preferable from the point of storage stability and a bleaching effect to adjust pH at 20 degreeC of a composition to 12.5-13.5.

  In addition, the viscosity of the composition of the present invention is preferably 1 to 2000 mPa · s, more preferably 1 to 1000 mPa · s, and particularly preferably 20 ° C. from the viewpoint of improving adhesion to an object. Is 1 to 500 mPa · s. Furthermore, when spraying on the target surface using a trigger, the lower the viscosity from the point of sprayability, the better, the viscosity at 20 ° C. being 1 to 20 mPa · s, especially 1 to 10 mPa · s. Is good.

  The liquid bleach detergent composition of the present invention can be used for hard surfaces. It is also suitable for kitchens, bathrooms, toilets, dwellings, textile products, tableware and the like. In particular, it exhibits an excellent effect on mold generated in resin parts such as silicone resin caulking and soft polyvinyl chloride resin packing, so that it should be used for mold removal compositions, and mold removal compositions for resin products. Applicable as a thing. Resin products can be used for articles made of various hard and soft materials. Resin products include, for example, porous products such as sponges, flexible products, and water-absorbing products.

<Bleaching method>

The liquid bleach detergent composition of the present invention can be used by (1) a method of spraying directly on an object using a sprayer (sprayer) such as a trigger, or (2) a composition on a water-absorbing flexible material. And (3) a method of immersing the object in a solution in which the composition is dissolved, and the method (1) is particularly preferable from the viewpoint of simplicity. As the sprayer, a trigger type spray capable of foaming and spraying a liquid bleaching detergent composition containing optional components such as the components (a) to (c) and the component (d) is preferable. It is preferable to spray at a ratio of 5 to 15 g with respect to ² .

  As a bleaching method using the liquid bleach composition of the present invention, the agent (a) containing the component (a) and the component (b) and the agent B containing the component (c) are mixed immediately before use, A liquid bleach composition prepared so as to contain a) component 0.5 to 5% by mass, component (b) 0.001 to 3% by mass, component (c) 0.01 to 1% by mass. And a bleaching method in which an object (molded resin or the like) is brought into contact.

  This method includes (a) an alkali metal hypochlorite and (b) an agent A containing an alkali metal hydroxide, (c) the following general formulas (1), (2), (3), (4 ) And (5), a liquid bleaching kit comprising one or more kinds of B agent containing a water-soluble solvent containing a hydroxyl group, wherein A agent and B agent are mixed. A liquid bleaching detergent composition containing 0.5 to 5% by mass of component (a), 0.001 to 3% by mass of component (b), and 0.01 to 1% by mass of component (c) is prepared. It is preferable to use a liquid bleach kit for the purpose.

  In the kit of the present invention, the mixing volume ratio of agent A and agent B can be selected arbitrarily, but from the viewpoint of simplicity, the volume of agent A (mL) / volume of agent B (mL) is 1. It is preferably set to be / 10 to 10/1, more preferably 1/5 to 10/1, and particularly preferably 1/2 to 10/1.

  Such a kit can be applied to a two-component liquid bleaching agent that is stored in a container in which components can be stored separately and used by mixing at the time of use. In particular, agent A containing component (a) and component (b) [preferably substantially free of component (c)] and agent B containing component (c) [substantially component (a), ( b) It is preferable not to contain a component], and a two-component liquid bleaching agent is preferably used.

Examples 1-19, Comparative Examples 1-4
Using each component shown in Tables 1 and 2, each liquid bleach detergent composition of Examples and Comparative Examples was obtained. Using each liquid bleach detergent composition, the mold removal performance was tested by the following method. The results are shown in Tables 1 and 2.

(Mold removal performance)
Mold was generated on the soft polyvinyl chloride resin packing used in the bathroom window frame of general households under actual usage conditions, and the test piece was collected and cut into about 1 cm to obtain an evaluation sample. The brightness (L value) of the evaluation sample was measured using a colorimetric color difference meter (ND-300A, manufactured by Nippon Denshoku Industries Co., Ltd.), and the difference in L value was ± 2 or less. Two pieces of Kimwipe (3 cm x 3 cm, manufactured by Kimberly Clark Co., Ltd.) are stacked on the test piece, 0.5 ml of the liquid bleach detergent composition shown in Tables 1 and 2 is dropped, allowed to stand for 10 minutes, then washed with water and air-dried, The lightness (L value) was measured with a colorimetric color difference meter. The difference (ΔL) between the L values before and after the evaluation was taken as the bleaching power. The greater the difference in L value, the higher the bleaching effect.

Claims (6)

(A) alkali metal hypochlorite 2-5 wt%, (b) sodium hydroxide 0.001 mass%, one or more water-soluble solvent selected either et (c) the following formula (1) 0 .01 to 1% by mass , and (d) among the groups bonded to the nitrogen atom, 1 to 3 are hydrocarbon groups having 8 to 16 carbon atoms, and the rest are alkyl groups or hydroxyalkyl having 1 to 3 carbon atoms. Liquid bleach detergent composition containing the quaternary ammonium compound 0.005-0.5 mass% which is a group or a benzyl group .
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ] The liquid bleach detergent composition according to claim 1, which is a mold remover composition. (A) and A agent comprising an alkali metal hypochlorite and (b) sodium hydroxide, using a B agent containing one or more water-soluble solvent selected either et (c) the following formula (1) just before To (a) component 2 to 5% by mass, (b) component 0.001 to 3% by mass, and (c) component 0.01 to 1% by mass , Further, (d) among the groups bonded to the nitrogen atom, 1 to 3 are hydrocarbon groups having 8 to 16 carbon atoms, and the rest are an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, or a benzyl group. A bleaching method in which a liquid bleaching detergent composition containing 0.005 to 0.5% by mass of a quaternary ammonium compound is brought into contact with an object.
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ] The bleaching method according to claim 3, wherein the object is a moldy resin. (A) the alkali metal hypochlorite and (b) A agent containing sodium hydroxide, and a B agent containing one or more water-soluble solvent selected either et (c) general formula (1) A kit for a liquid bleaching agent, which comprises mixing agent A and agent B, and said component (a) 2 to 5% by mass, component (b) 0.001 to 3% by mass, and component (c) 1 to 3 of the group containing 0.01 to 1% by mass of the component and further bonded to (d) the nitrogen atom is a hydrocarbon group having 8 to 16 carbon atoms, and the remaining is a group having 1 to 3 carbon atoms. A liquid bleaching kit for preparing a liquid bleaching detergent composition containing 0.005 to 0.5% by mass of a quaternary ammonium compound which is an alkyl group, a hydroxyalkyl group, or a benzyl group .
CH ₃ -C _n H _2n -OH (1)
[In Formula (1), n is a number of 0-3. ] 6. The liquid bleach kit according to claim 5, wherein the liquid bleach detergent composition is a mold remover composition.