JPH0512400B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a liquid cleanser composition that has excellent cleaning and polishing power and does not damage surfaces to be cleaned. [Prior Art and Problems] Cleansers target stains such as denatured or burnt oil stains, water stains and slimy stains on sinks, and soap scum stains on bathtubs. In addition, the material of the target surface is a metal surface such as stainless steel, or glass fiber reinforced plastic (FRP) used in bathtubs.
There are many things that are easily damaged. Conventional cleansers cannot be expected to have sufficient cleaning power against these various stains and to provide a glossy finish without damaging the surface to be cleaned. Silica stone and calcium carbonate, which have been widely used in the past, have an average particle size of 15 μm or more, and those with a particle size of less than 15 μm are less likely to scratch the target surface, but are not used because their polishing power decreases. Also, the average particle size
Zeolite is known as an abrasive material with a particle size of 15μ or less (Japanese Patent Application Laid-Open No. 51-50909, Japanese Patent Application Laid-open No. 55-5947).
However, it has not been put into practical use because of its inferior polishing power. In order to maintain polishing power and avoid scratching the surface being washed, it was common practice to use a highly hard abrasive such as silica stone in combination with a less hard abrasive such as calcium carbonate or zeolite. . However, the combination of abrasives with low hardness was thought to reduce the polishing power, so it was not actually used. [Means for Solving the Problems] As a result of extensive studies, the present inventors have found that fine grain size
By using a specific abrasive material with low hardness in a specific ratio, the result is surprisingly contrary to conventional wisdom, i.e., it has a cleaning power equal to or greater than that of conventional cleansers against a wide range of commonly found stains. The present inventors have discovered that it is possible to obtain a cleanser that has the following properties and gives a glossy finish without damaging the surface to be cleaned, and has completed the present invention. That is, the present invention contains 1 to 20% by weight of a synthetic surfactant, crystalline aluminosilicate (a) having an average particle size of 2 to 12μ, and calcium carbonate (b) having an average particle size of 3 to 15μ. Contains (a)/(b) in a weight ratio of 10/90~
Provided is a liquid cleanser composition characterized in that the composition is 50/50 and (a)+(b) is 20 to 70% by weight. The crystalline aluminosilicate used in the present invention is
It is preferable that the average particle size is 2 to 12μ, the content of particles of 1μ or less is 10% by weight or less, and the content of particles of 15μ or more is 20% by weight or less. Aluminosilicate is disclosed in Japanese Patent Application Laid-Open No. 51-50909,
The one known from JP-A No. 55-5947 can be used, but if an interpenetrating aluminosilicate in which 30 or more crystals form an aggregate is used, it has higher abrasiveness and lower polishing properties than conventional products. A non-scratch cleanser is obtained. The superiority of such aluminosilicate abrasives is thought to be due to the large number of contact points with dirt or the high efficiency of force transmission. Interpenetrating crystalline aluminosilicate can be obtained by hydrothermal crystallization by mixing an aqueous solution of sodium aluminate and an aqueous solution of sodium silicate (Japanese Patent Application Laid-open No. 1983-1972).
(See Publication No. 26917). In producing the crystalline aluminosilicate, a high concentration solution of 30 to 70% by weight is used as the sodium aluminate aqueous solution, and a high concentration solution of 35 to 55% by weight is used as the sodium silicate aqueous solution, and, The composition of the mixed solution has a molar ratio of 1.0 to
The aluminosilicate slurry may be produced in such a manner that it has 2.0Na ₂ O: 1Al ₂ O ₃ : 1.5 to 2.5 SiO ₂ : 15 to 30 H ₂ O. If the concentration of the aqueous solution is too low, sufficient aggregates will not be formed, and if the concentration is too high, the particles will become coarse. The calcium carbonate used in the present invention has an average particle size of 3 to 15μ, and the content of particles smaller than 1μ is 15%.
Hereinafter, it is preferable that the content of particles of 20μ or more is 20% or less. The larger the particle size, the more likely it is to damage the surface being cleaned.
Moreover, if it is too small, the viscosity will become high and the usability will be poor. The mixing ratio of crystalline aluminosilicate and calcium carbonate is required to be 10/90 to 50/50 by weight. A synergistic polishing force cannot be obtained outside this range. The abrasive ((a) + (b)) is present in the composition in an amount of 20 to 70% by weight,
Preferably, it is blended in an amount of 30 to 60% by weight. The synthetic surfactants used in the present invention include anionic surfactants, nonionic surfactants, cationic surfactants, and amphoteric surfactants, but particularly preferred are anionic surfactants. Active agents and nonionic surfactants. As the anionic surfactant used in the present invention, common sulfonate-based anionic surfactants, sulfate-based anionic surfactants, and phosphate-based anionic surfactants are used. Examples of sulfonate-based anionic surfactants include straight chain or branched alkyl (C ₈ - C ₂₃ ) benzenesulfonate, long chain alkyl (C ₈ - _{C 22} )
These include sulfonates, long chain olefin ( _C8 - _C22 ) sulfonates, and the like. In addition, as sulfate-based anionic surfactants, long-chain monoalkyl (C ₈ -
C ₂₂ ) Sulfate ester salt, polyoxyethylene (1
~6 mol) long-chain alkyl ( _C8 - _C22 ) ether sulfate salt, polyoxyethylene (1-6 mol) alkyl ( _C8 - _C18 ) phenyl ether sulfate salt, and the like. In addition, as the phosphate-based anionic surfactant, long-chain monoalkyl, dialkyl or sesqui(each alkyl group has 8 to 8 carbon atoms)
22) phosphate, polyoxyethylene (1~
6 mol) monoalkyl, dialkyl or sesqui(each alkyl group has 8 to 22 carbon atoms) phosphates, and the like. Cations as counter ions of these anionic surfactants include alkali metal ions such as sodium and potassium, alkanolamine ions such as monoethanolamine, diethanolamine, and triethanolamine. As the anionic surfactant of the present invention, sulfonate surfactants are preferred because of their strong resistance to hydrolysis. Furthermore, linear or branched chain alkylbenzene sulfonates are preferred from the viewpoint of detergency and the like. Examples of nonionic surfactants include polyoxyethylene (1 to 20 mol) long chain alkyl (primary or secondary C ₈ to C ₂₂ ) ether, polyoxyethylene (1 to 20 mol) alkyl (C ₈ ~ _C18 ) Phenyl ether, oxyalkylene adducts such as holoxyethylene polyoxypropylene block copolymers, higher fatty acid alkanolamides or alkylene oxide adducts thereof, and the like are used. The blending amount of the synthetic surfactant is 1 to 20% by weight, preferably 3 to 15% by weight. 0.5-10% by weight of anionic surfactant, preferably 2-6% by weight and 0.5% of non-ionic surfactant.
The detergency can be further enhanced by using 1 to 10% by weight, preferably 1 to 5% by weight. In the composition of the present invention, by adding 0.05 to 1.5% by weight of an aliphatic carboxylate having 8 to 22 carbon atoms, not only can the polishing cleaning power be further enhanced, but the surface to be cleaned is also less susceptible to scratches. It can be made difficult. If the aliphatic carboxylate is less than 0.05% by weight, no significant effect will be observed, and if it exceeds 1.5% by weight, the polishing power will decrease. A particularly preferred amount is 0.1 to 0.7% by weight. In the present invention, the dispersion stabilizer has 3 to 3 carbon atoms.
8 di- or tricarboxylic acids or salts thereof can be added. Specific examples of di- or tricarboxylic acids having 3 to 8 carbon atoms or salts thereof are malonic acid, malic acid, tartaric acid, citric acid, L-aspartic acid or salts thereof. The amount of di- and tricarboxylic acid or its salt is
Preferably 0.1-5%, more preferably 0.5-3%
It is. In carrying out the present invention, sodium silicate, such as sodium silicate No. 1, sodium silicate No. 2, sodium silicate No. 3, sodium silicate No. 4, sodium orthosilicate, sodium sesquisilicate, sodium metasilicate, magnesium sulfate, chloride, etc. If an alkaline earth metal salt such as calcium is used in combination, the dispersion stabilizer will be further improved. Furthermore, if necessary, alkaline agents, solvents, hydrotropic agents, bactericidal agents, fragrances, pigments, dyes, etc. can be optionally added. Examples of alkali agents include organic alkali agents such as ammonia, monoethanolamine, diethanolamine, triethanolamine, and morpholine, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, sodium carbonate, sodium pyrophosphate, and sodium tripolyphosphate. Sodium borate or the like or their potassium salts can be used. Examples of solvents include aliphatic monohydric alcohols such as ethyl alcohol and butyl alcohol, ethylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, or their lower aliphatic alcohols (methyl, ethyl,
) and ethers such as propyl and butyl. As the hydrotrope, paratoluene sulfonate, xylene sulfonate, cumene sulfonate, urea, etc. can be used. The pH of the liquid is adjusted from neutral to alkaline to provide excellent cleaning power. [Effects of the Invention] The liquid cleanser composition of the present invention has excellent cleaning and abrasive power against a wide variety of stains, from oil-denatured burnt stains to soap scum stains in bathtubs, and has excellent cleaning power and polishing power against a wide variety of stains, from burnt-on stains caused by oil denaturation to soap scum stains on bathtubs. Will not damage the surface being cleaned. [Example] The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples. The compositions shown in Table 1 were prepared, and the detergency and scratch resistance of each composition were evaluated as follows. <Test method> Γ Cleaning power 1 Oil denatured stain A 3 x 8 cm iron test piece was coated with rapeseed oil/
1.0g of carbon black (weight ratio: 5/1)
The coated material was denatured at 165°C for 115 minutes and then used. The evaluation method was to take 1 g of a sample, wash it 30 times with a load of 1 kg/30 cm ² using a urethane sponge, and then calculate the relative cleaning rate from the weight loss rate.
A five-level evaluation was performed as shown below. Relative cleaning rate (%) 6...91-100 5...81-90 4...61-80 3...41-60 2...21-40 1...0-20 (Relative cleaning rate (%); The abrasive cleaning power of commercial product A was set to 50.) Commercial product A: LAS (sodium dodecylbenzenesulfonate) 2.5% Lauric acid diethanolamide 4% Calcium carbonate (average particle size 20μ) 50% Water Balance 2 Scrub the stains attached to the bathtub An FRP bathtub with bath stains that cannot be removed at all by ivy was scrubbed with a sponge impregnated with a cleaning agent, and the effects were observed with the naked eye. Relative cleaning rate (%) 6...91-100 5...81-90 4...61-80 3...41-60 2...21-40 1...0-20 (Relative cleaning rate (%); The abrasive cleaning power of commercial product A was set to 50.) Γ Scratch Resistance 1 g of sample was taken and washed 50 times with a urethane sponge on the FRP surface and stainless steel surface, which are the materials of bathtubs and sinks, and then visually inspected for scratches. Observed and evaluated. 〇……Does not hurt ○△……Normally there is no problem, but if you rub it too hard it will hurt a little △……It will hurt a little ×……It will hurt

【table】

[Table] ** Abbreviation for balance

Claims (1)

[Claims] 1. 1 to 20% by weight of a synthetic surfactant, crystalline aluminosilicate (a) with an average particle size of 2 to 12μ, and calcium carbonate (b) with an average particle size of 3 to 15μ. Contains
(a)/(b) is 10/90 to 50/50 in weight ratio, and (a) + (b) is
A liquid cleanser composition characterized in that it is 20-70% by weight. 2 Furthermore, an aliphatic carboxylate having 8 to 22 carbon atoms
The liquid cleanser composition according to claim 1, containing 0.05 to 1.5% by weight. 3. The liquid cleanser composition according to claim 1 or 2, wherein the crystalline aluminosilicate is an interpenetrating type in which at least 30 or more crystals form an aggregate.