JPH046759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to liquid cleanser compositions, and more particularly to liquid cleanser compositions with improved storage stability containing crystalline aluminosilicate as an abrasive. [Prior Art and its Problems] Silica stone and calcium carbonate have been widely used as abrasives in liquid cleansers. Liquid cleansers using zeolite as an abrasive are also known (see JP-A-51-50909 and JP-A-55-5947). Although zeolite is excellent in that it does not easily damage the surface to be cleaned, it has the problem that it is difficult to stabilize its dispersion in an aqueous medium over a long period of time compared to other conventional abrasives. In order to solve this problem, many studies have been conducted on dispersion stabilization. For example, the technology of using smectite clay to stabilize the dispersion of zeolite (Japanese Unexamined Patent Publication No. 1983-1999)
No. 5947), technology to use acidic phosphates and neutral phosphates together as dispersion stabilizers (JP-A-47-
22908), technology using ammonium chloride and urea (JP 56-133399), technology using magnesium sulfate and/or sodium silicate (JP 57-16098), and hydroxycarboxylate. Techniques (Japanese Unexamined Patent Publication No. 57-100198, US Pat. No. 4,129,527) are known. However, even with these dispersion techniques, the dispersion of zeolite could not be sufficiently stabilized. [Means for Solving the Problems] As a result of intensive studies to solve the above problems, the present inventors found that using zeolite with a specific particle size distribution,
The present invention was completed based on the discovery that the object can be achieved by using a specific dispersion stabilizer in combination. That is, the present invention comprises: (a) 1 to 20% by weight of surfactant; (b) 5% by weight or less of particles of 25μ or more, 5% by weight or less of particles of 1μ or less, and the particle size distribution curve is as shown in FIG. 3 to 40% by weight of a crystalline aluminosilicate having a particle size distribution existing in the region separated by the two curves The present invention provides a liquid cleanser composition characterized in that it contains 0.1 to 5% by weight of di- or tricarboxylic acid or a salt thereof (d) 0.05 to 1.5% by weight of polyalkylene glycol having a molecular weight of 300 to 1,500. The surfactants used in the present invention include anionic surfactants, nonionic surfactants,
Cationic surfactants and amphoteric surfactants are used, but particularly preferred are anionic surfactants 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 morealkyl, dialkyl, or sesqui(each alkyl group has 8 carbon atoms)
~22) phosphate, polyoxyethylene (1
~6 mol) monoalkyl, dialkyl or sesqui(each alkyl group has 8 to 22 carbon atoms) phosphates, aliphatic carboxylates having 8 to 22 carbon atoms, 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 polyoxyethylene polyoxypropylene block copolymers, higher fatty acid alkanolamides or alkylene oxide adducts thereof, and the like are used. The blending amount of the 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. The crystalline aluminosilicates used in the present invention are natural ones such as mordenite,
Clinobutyrolite and the like can be used, and synthetic ones such as A-type, X-type, and Y-type zeolites can be used. The crystalline aluminosilicate of the present invention must have a particle size distribution within the aforementioned range shown in FIG. In preparing the particle size distribution curve shown in FIG. 1, the particle size was selected using a Coulter Counter (manufactured by Coulter Electronics). Curve X defines the limit for smaller particle sizes, and curve X' defines the limit for larger particle sizes. It is difficult to stably disperse particles outside this particle size distribution, for example those containing many fine particles, which are generally used in powdered laundry detergents, for a long period of time. Furthermore, those containing many fine grains cannot provide sufficient polishing power, and those containing many coarse grains tend to damage the target surface. The crystalline aluminosilicate is incorporated in the composition in an amount of 3 to 40% 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
0.1 to 5% by weight, preferably 0.5 to 3% by weight
It is. In the present invention, the excellent dispersion stabilizing effect is obtained by combining the carboxylate and a polyalkylene glycol with an average molecular weight of 300 to 1500, preferably 500 to 1500.
It can be obtained by combining 0.05 to 1.5% by weight.
Examples of polyalkylene glycols include polyethylene glycol, polypropylene glycol, and the like. 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 stability will be further improved. In addition, silicon dioxide, aluminum oxide, aluminum hydroxide, magnesium oxide, titanium oxide, silicon carbide, calcium carbonate, calcium phosphate, chromium oxide, corundum, emery, silica stone, quartz sand, calcite, within a range that does not impair the effects of the present invention. , dolomite, vinyl chloride, polystyrene, polyethylene, ABS, or other polymer beads may be added, and if necessary, alkaline agents, solvents, hydrotope agents, bactericidal agents, fragrances, pigments, dyes, etc. may be optionally added. I can do it. 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 the solvent include aliphatic monohydric alcohols such as ethyl alcohol and butyl alcohol, ethylene glycol, propylene glycol, and their lower aliphatic alcohols (such as methyl, ethyl, propyl, butyl) and ethers. 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 exhibit excellent cleaning power. [Effects of the Invention] The cleanser composition of the present invention has excellent dispersion stability and does not impair its use even when stored for a long period of time.
Furthermore, it has excellent cleaning and polishing power for a wide variety of stains, from denatured or burnt oil stains to premature soap scum stains on bathtubs, without damaging the surface to be cleaned. [Example] The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples. Examples 1 to 4, Comparative Examples 1 to 11 The compositions shown in Table 1 were prepared, and the dispersion stability of each composition was evaluated as follows. <Test method> Place the sample in a 300 c.c. polyethylene bottle and
The dispersion stability was evaluated after being left for one month at temperatures of 20°C, 20°C, and -10°C, and after being frozen at -15°C and thawed at room temperature once a day, a total of 5 times. 〇…Not separated △…Slightly separated ×…Completely separated [Table]

[Brief explanation of drawings]

FIG. 1 is a diagram showing a particle size distribution curve of crystalline aluminosilicate blended into a liquid cleanser composition.

Claims (1)

[Scope of Claims] 1 (a) 1 to 20% by weight of a surfactant (b) 5% by weight or less of particles of 25μ or more, 5% by weight or less of particles of 1μ or less, and the particle size distribution curve is 3 to 40% by weight of a crystalline aluminosilicate having a particle size distribution existing within the region delimited by two curves X and X' in the particle size distribution curve diagram shown in FIG. (c) 0.1 to 5% by weight of a di- or tricarboxylic acid having 3 to 8 carbon atoms or a salt thereof; (d) 0.05 to 1.5% by weight of a polyalkylene glycol having a molecular weight of 300 to 1,500. .