JP4417443B2 - Cleaning composition - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a detergent composition in which a water-insoluble component is stably and uniformly dispersed in a transparent liquid, the appearance is beautiful, and foaming is good.
[0002]
[Prior art]
Conventionally, as one of attempts to impart a beautiful appearance to a cleaning composition, it has been studied to disperse a water-insoluble component in a transparent fluidized bed. For example, a detergent composition (British Patent No. 1,471,406) containing a surfactant and an acrylic acid copolymer containing sucrose polyallyl ether has been proposed. However, this cleaning composition has a problem in that it is difficult to disperse and dissolve the compounding components at the time of production, and the operability is poor. In addition, the resulting cleaning composition has low transparency, and it is necessary to add a clarifying agent in order to obtain a transparent appearance. Therefore, when a clarifying agent is blended, problems such as loss of foaming and a decrease in viscosity occur. Furthermore, it is difficult to stably and uniformly disperse the water-insoluble component.
[0003]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a transparent detergent composition that is excellent in operability during production, has high transparency without using a clarifying agent, and stably and uniformly disperses water-insoluble components.
[0004]
[Means for Solving the Problems]
In such a situation, the present inventors have conducted intensive research. As a result, when a water-soluble acrylic acid / alkyl methacrylate copolymer is used together with a surfactant in a specific ratio, the operability at the time of production is excellent, and the transparency is improved. The present inventors have found that a transparent detergent composition in which a water-insoluble component is stably and uniformly dispersed in a liquid having high transparency without using an agent, and which has good foaming and feeling in use can be obtained.
[0005]
That is, the present invention includes the following components (A), (B) and (C):
(A) 1 to 60% by weight of an anionic surfactant,
(B) A water-soluble acrylic acid / alkyl methacrylate copolymer having a structure of the following formula (1 ) : 0.01 to 10% by weight,
[Chemical formula 2]
(In the formula, R represents an alkyl group having 10 to 30 carbon atoms, X and Y represent mol% of each unit in the copolymer, X = 80.0 to 99.9 mol%, Y = 0. 1 to 20.0 mol%)
(C) Water-insoluble component that is solid at room temperature 0.01 to 50% by weight
The transparent cleaning composition containing this is provided.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Surfactants of component (A) used in the present invention are the anionic surfactants. The surfactant may be any one commonly used in detergent compositions is not particularly limited, if example embodiment, higher fatty acid salts, alkyl phosphates, alkyl isethionates, alkyl sulphonates, alkyl sulphates , Acylated amino acid salt, polyoxyethylene alkyl ether sulfate, alkylbenzene sulfonate, N-acyl-N-methyl taurate, alpha olefin sulfonate, higher fatty acid ester sulfonate, alkyl ether acetate, polyoxyethylene Examples thereof include alkyl ether acetates. Of these, higher fatty acid salts, N-lauroyl-β-alanine salts, monoalkyl phosphates, polyoxyethylene lauryl ether acetates, and polyoxyethylene lauryl amide acetates are preferred. In addition, as a salt used here, organic ammonium salts, such as metal salts, such as potassium, sodium, and magnesium; Ammonium salt and monoethanolammonium salt, etc. are preferable.
[0009]
The surfactant component (A), high-grade fatty acid salts, especially, monoalkyl phosphates, polyoxyethylene alkyl ether sulfates, N- lauroyl -β- alanine salts, polyoxyethylene lauryl amide acetate is preferred .
[0010]
The surfactant of component (A) can be used alone or in combination of two or more, and is 1 to 60% by weight, preferably 2 to 40% by weight, particularly preferably 3 to 30% by weight in the total composition. % Blended. If it is less than 1% by weight, sufficient detergency cannot be obtained, and if it exceeds 60% by weight, fluidity is not exhibited, which is not preferable.
[0011]
In the water-soluble acrylic acid / alkyl methacrylate copolymer of the component (B) used in the present invention, the water-soluble property means that polyoxyethylene is added to 50 g of a 5% by weight aqueous solution of acrylic acid / alkyl methacrylate copolymer. (3) Add 50 g of a 25% by weight aqueous solution of sodium lauryl ether sulfate, temperature: 25 ° C., stirring speed: 80 rpm, stirring blade: three 2.5 cm screw blades, 8 cm diameter 300 ml beaker When the entire composition becomes uniform after stirring for 15 minutes.
[0012]
The readily water-soluble acrylic acid / alkyl methacrylate copolymer of component (B) is represented by the following formula (1):
[0013]
[Chemical 1]
[0014]
(In the formula, R represents an alkyl group having 10 to 30 carbon atoms, X and Y represent mol% of each unit in the copolymer, X = 80.0 to 99.9 mol%, Y = 0. 1 to 20.0 mol%)
A copolymer having the following structure is preferred.
[0015]
As such an acrylic acid / alkyl methacrylate copolymer, carbopol ETD-2020, Pemlen TR-1, Pemlen TR-2 (above, manufactured by BF Goodrich) and the like are preferable. -2020 is preferred.
[0016]
The acrylic acid / alkyl methacrylate copolymer of the component (B) can be used alone or in combination of two or more, and is 0.01 to 10% by weight, preferably 0.05 to 8% in the total composition. % By weight, particularly preferably 0.1 to 3% by weight. If it is less than 0.01% by weight, the water-insoluble component cannot be stably and uniformly dispersed.
[0017]
The water-insoluble component (C) used in the present invention is solid at room temperature, and for example, any of solid fats, powders, capsules, beads and the like can be used. Among these, examples of the solid fat include glycerin fatty acid esters, waxes, petrolatum, and paraffins.
Examples of the powder include inorganic powder such as titanium oxide, talc, kaolin and bentonite, silicone powder, nylon powder, polyethylene powder, polystyrene powder, polymethyl methacrylate powder, silk powder, hemp fiber powder and the like. Examples of capsules include agar capsules and gelatin capsules, and examples of beads include polymer beads such as polyethylene beads.
[0018]
Examples of the water-insoluble component (C) include solid fats such as glycerin fatty acid ester and petrolatum, capsules such as agar and gelatin, beads such as polyethylene beads, nylon powder, silk powder, talc, and titanium oxide. Powders are preferred. The shape and size of the water-insoluble component is not particularly limited, but it is preferably spherical and has a diameter of 1 μm or more, particularly 10 μm to 10 mm.
[0019]
The water-insoluble component (C) can be used alone or in combination of two or more, and is 0.01 to 50% by weight, preferably 0.05 to 20% by weight, particularly preferably in the total composition. 0.1 to 10% by weight can be blended. If it is less than 0.01% by weight, water-insoluble components are hardly recognized, and if it exceeds 50% by weight, the transparent appearance is impaired.
[0020]
In the cleaning composition of the present invention, in addition to the essential components, components used in ordinary cleaning compositions, for example, viscosity modifiers such as anionic, nonionic, and cationic polymers; moisturizing components such as polyols; Foaming agents such as amides and fatty acids; other preservatives, antioxidants, fragrances, pigments and the like can be appropriately blended within the range not impairing the effects of the present invention.
[0021]
The cleaning composition of the present invention is a non-emulsifying system that can be produced by mixing the above-mentioned components and water, for example, according to a normal method. Here, water is preferably blended in an amount of 20 to 95% by weight, particularly 30 to 85% by weight in the total composition.
[0022]
In the present invention, the fluidized bed containing the components (A) and (B) is preferably a transparent liquid or gel. Here, the term “transparent” refers to those having a transparency of 70 or more, preferably 80 or more, when a distilled water transparency is set to 100 as a control using a spectrophotometer (UV-160) manufactured by Shimadzu Corporation. Say. Further, the viscosity of the fluidized bed at 20 ° C. is preferably 100 cp or more, and particularly preferably 1000 to 100,000 cp.
[0023]
The detergent composition of the present invention preferably has a pH of 5 to 12, particularly a pH of 5 to 11.
[0024]
【The invention's effect】
The transparent detergent composition of the present invention is excellent in operability during production, has high transparency without using a clarifying agent, stably and uniformly disperses water-insoluble components, has a beautiful appearance, and has good foaming and feeling of use. It is a thing.
[0025]
【Example】
EXAMPLES Next, although an Example is given and this invention is demonstrated further in detail, this invention is not limited to these Examples.
[0026]
Example 1
A cleaning composition having the composition shown in Table 1 was produced and evaluated for blending operability, transparency, stability and foaming. The results are also shown in Table 1.
[0027]
(Evaluation methods)
(1) Formulation operability:
200 g of a cleaning composition having the composition shown in Table 1 is produced by a conventional method using a temperature: 25 ° C., a stirring speed: 80 rpm, a stirring blade: three 2.5 cm blades and a 300 ml beaker having a diameter of 8 cm. At the time, the state after stirring for 30 minutes was evaluated according to the following criteria.
○: Undissolved and dissolved uniformly.
X: There is a residue and it is not dissolved uniformly.
[0028]
(2) Transparency:
Using a spectrophotometer (UV-160; manufactured by Shimadzu Corporation), the transparency of each cleaning composition was determined with the transparency of distilled water as 100 as a control, and evaluated according to the following criteria.
○: Transparency 70 or more.
Δ: Transparency 20 to less than 70.
X: Transparency is less than 20.
[0029]
(3) Stability:
The appearance of the cleaning composition was visually evaluated according to the following criteria.
○: Stable and free of ups and downs of water-insoluble components.
X: There is ups and downs of water-insoluble components.
[0030]
(4) Foaming:
A professional panelist evaluated the foaming when hand-washing with each detergent composition according to the following criteria.
5; very good 4; good 3; normal 2; slightly inferior 1; very inferior
[Table 1]
[0032]
As is apparent from the results in Table 1, all of the products of the present invention were excellent in operability during production, high in transparency, stable and good in foaming. In addition, the appearance was beautiful and the usability was excellent.

Claims (2)

The following components (A), (B) and (C):
(A) 1 to 60% by weight of an anionic surfactant,
(B) the following equation (1) Structure luer acrylic acid-alkyl methacrylate copolymer 0.01 to 10% by weight having a of,
(In the formula, R represents an alkyl group having 10 to 30 carbon atoms, X and Y represent mol% of each unit in the copolymer, X = 80.0 to 99.9 mol%, Y = 0. 1 to 20.0 mol%)
(C) A water-insoluble component that is solid at room temperature, selected from solid fats, capsules and beads having a diameter of 10 μm to 10 mm 0.01 to 50% by weight
A transparent detergent composition comprising: The anionic surfactant of component (A) is selected from higher fatty acid salts, monoalkyl phosphates, polyoxyethylene alkyl ether sulfates, N-lauroyl-β-alanine salts and polyoxyethylene lauryl amide acetates. transparent detergent composition in which claim 1 wherein ones.