JPH0572958B2 - - 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. [Conventional technology and problems] The target stains of cleansers are oil stains that have not been significantly denatured by heat (weakly denatured oil stains), water stains on sinks, soft stains such as slimy stains (approximately 5B on the pencil hardness scale) to hard stains (approximately 3H on a pencil hardness scale) such as burnt-on oil or food stains.
As described above, the nature of commonly found stains is diverse, and conventional cleansers do not have sufficient cleaning power against these stains. Moreover, sufficient cleaning power for both soft and hard stains cannot be obtained by using only one type of abrasive, or even by arbitrarily mixing two types of abrasives. Furthermore, it cannot be expected to give a very glossy finish after cleaning and rinsing metal surfaces such as stainless steel. [Means for Solving the Problems] As a result of intensive study by the present inventors in order to obtain a cleanser that has sufficient cleaning power against a wide range of commonly found stains as described above and also provides a glossy finish, the present inventors have found that: The following facts have become clear. The cleaning power for soft stains such as weakly denatured oil stains, water stains on the sink, and slimy stains improves as the particle size of the abrasive increases, and the cleaning power for generally hard stains such as burnt-on oil and food stains improves. depends on the hardness of the abrasive rather than the particle size of the abrasive. Therefore, in order to obtain good cleaning power for both soft stains such as oil stains, water scales, and slimy stains, and hard stains such as burnt stains, use an abrasive with a large particle size and high hardness. However, in this case, the problem arises that the target surface may be damaged. As a result of intensive research into abrasives that have very high cleaning power and do not cause scratches, the inventors of the present invention found that two types of abrasives with specific particle sizes and hardness can be used together in a specific ratio. They discovered this and completed the present invention. That is, the present invention comprises 1 to 20% by weight of a surfactant and the following two types of water-insoluble abrasives (a) and (b) in a weight ratio of (a)/(b) of 10/90 to 10/90.
The present invention provides a liquid cleanser composition having a ratio of 90/10 and containing 20 to 70% by weight of (a)+(b) in total. (a) A water-insoluble abrasive having an average particle diameter of 15 to 40μ, a content of particles of 5μ or less of 20% by weight or less, a content of particles of 60μ or more of 40% by weight or less, and a Mohs hardness of 1 to less than 4. (b) A water-insoluble abrasive having an average particle diameter of 2 to 25μ, a content of particles of 50μ or more of 20% by weight or less, and a Mohs hardness of 4 to 9. The surfactant used in the present invention is preferably an anionic surfactant or a nonionic surfactant. As the anionic surfactant, ordinary sulfonate-based anionic surfactants and sulfate-based anionic surfactants are used. Sulfonate-based anionic surfactants include linear or branched alkyl ( _C8 - _C23 ) benzenesulfonates, long-chain alkyl ( _C8 - _C22 ) sulfonates, and long-chain olefins ( _C8 -C23). ₂₂ ) There are sulfonates, etc. In addition, as the sulfate-based anionic surfactant, polyoxyethylene (1 to 6 mol) long chain alkyl (C ₈
~ _C22 ) ether sulfate salts, polyoxyethylene (1 to 6 mol) alkyl ( _C8 to _C18 ) phenyl ether sulfate salts, 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. 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 to C 22 ); ₁₈ ) Phenyl ether, higher aliphatic alkanolamide having 10 to 16 carbon atoms, ethylene oxide adduct of higher aliphatic alkanolamide having 10 to 16 carbon atoms (=1 to 6), etc. are used. In the present invention, the surfactant is 1 to 20% by weight.
(hereinafter abbreviated as %). (a) Water-insoluble abrasives having a Mohs hardness of 1 or more and less than 4 used in the present invention include calcium carbonate,
Examples include polymer beads (e.g. polyvinyl chloride, polystyrene, polyethylene, ABS beads, etc.) with an average particle size of 15 to 40μ, with a particle content of 5μ or less of 20% or less and a particle content of 60μ or more of 40%.
The following can be used: (b) Water-insoluble abrasives with a Mohs hardness of 4 or more and 9 or less include silicon dioxide, aluminum oxide, magnesium oxide, titanium oxide, aluminosilicate, silicon carbide, calcium phosphate, chromium oxide, or corundum;
Natural pulverized products such as emery, silica stone, and quartz sand, as well as natural zeolites and synthetic zeolites (e.g. zeolite A4, F9, etc.), with an average particle size of 2
-25μ, and the content of particles of 50μ or more is 20% or less. Furthermore, the particle size distribution of these abrasives used is not limited as long as it falls within the above range. (a) The water-insoluble abrasive having a Mohs hardness of 1 or more and less than 4 is preferably calcium carbonate, and (b) the water-insoluble abrasive having a Mohs hardness of 4 or more and 9 or less is preferably crushed silica or quartz sand. In the composition of the present invention, two types of water-insoluble abrasives
The total amount of (a) and (b) is 20 to 70%, preferably 30 to 70%.
60%, the weight ratio (a)/(b) of the two types of abrasives is 90/10 ~
Must be 10/90, preferably 80/20~
It is 20/80. The liquid cleanser composition of the present invention is obtained by blending the above components into an aqueous medium. Furthermore, in the present invention, an anionic surfactant and a nonionic surfactant are used as the surfactant, and a silicate such as sodium silicate and a di- or tricarboxylic acid having 3 to 8 carbon atoms or a salt thereof are blended to improve cleaning. A very glossy finish can be imparted during subsequent rinsing. Specific examples of di- or tricarboxylic acids having 3 to 8 carbon atoms or salts thereof used in the composition of the present invention include malonic acid, malic acid, tartaric acid, citric acid,
L-aspartic acid or a salt thereof. The amount of di- and tricarboxylic acid or its salt is
0.1-5% is preferable, more preferably 0.5-3%
%, the amount of anionic surfactant is preferably
The amount of nonionic surfactant is preferably 0.5 to 10%, more preferably 1 to 5%, and the amount of sodium silicate is 0.5 to 10%, more preferably 2 to 6%.
Preferably 0.1-8%, more preferably 0.3-5%
It is. Anionic surfactants and nonionic surfactants are
It is preferable that the total amount is 2 to 15% and the weight ratio is 6/1 to 1/3. In carrying out the present invention, small amounts of fragrances, pigments, dyes, fungicides, and solubilizers may be added as necessary. Since the liquid is used in the kitchen, the pH of the liquid is adjusted from neutral to alkaline so that it exhibits excellent cleaning power against oil stains. [Effects of the Invention] The liquid cleanser composition of the present invention does not damage the surface to be cleaned and has excellent cleaning power and polishing power against a wide variety of stains from soft stains to hard stains. Furthermore, it imparts a very glossy finish to the surface to be cleaned after cleaning and rinsing. [Examples] The present invention will be specifically explained below with reference to Examples, but the present invention is not limited to these Examples. Examples Compositions shown in Tables 1 and 2 were prepared, and the detergency, scratch resistance, and finish feeling upon rinsing of each composition were evaluated as follows. <Test method> Γ Cleaning power 1 Model stain creation For soft stains (weakly denatured stains), apply 1.0 g of rapeseed oil/carbon black (weight ratio: 5/1) to a 3 x 8 (cm ² ) iron test piece. 150
The material used was denatured at ℃ for 130 minutes (pencil hardness
5B). As for the hard stain (strongly denatured stain), the above-mentioned stain was denatured at 195°C for 115 minutes (pencil hardness: 3H). 2 Evaluation of Cleaning Power A 1 g sample was taken and washed 30 times with a load of 1 kg/30 cm ² using a urethane sponge.The relative cleaning rate was determined from the weight loss rate and evaluated on a 5-point scale as shown below. Relative cleaning rate (%) 5...81-100 4...61-80 3...41-60 2...21-40 1...0-20 Relative cleaning rate (%); The polishing cleaning power of commercial product A was set to 50. Γ Scratchability 1 g of the sample was taken, and after washing the stainless steel 30 times with a urethane sponge, the presence or absence of scratches was visually observed and evaluated. ○...Does not damage ○△...Usually there is no problem, but if rubbed too hard, it will cause some damage △...Slight damage ×...It will damage Γ Shine and finish after rinsing For each composition, 30 housewives were asked to wash the sink and rinse it. The subsequent gloss and finish were evaluated on a five-point scale, and the average value was determined. 5... Good finish (gloss) 4... Slightly good finish (slightly glossy) 3... Neutral 2... Not very good finish (not very glossy) 1... Poor finish Not good (no shine)

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Claims (1)

[Scope of Claims] 1 1 to 20% by weight of a surfactant and the following two types of water-insoluble abrasives (a) and (b) at a weight ratio of (a)/(b) of 10/90.
A liquid cleanser composition characterized in that the ratio is 90/10 and the total amount of (a) + (b) is 20 to 70% by weight. (a) A water-insoluble abrasive having an average particle diameter of 15 to 40μ, a content of particles of 5μ or less of 20% by weight or less, a content of particles of 60μ or more of 40% by weight or less, and a Mohs hardness of 1 to less than 4. (b) A water-insoluble abrasive having an average particle diameter of 2 to 25μ, a content of particles of 50μ or more of 20% by weight or less, and a Mohs hardness of 4 to 9. 2. The liquid cleanser composition according to claim 1, wherein the surfactant comprises a mixture of an anionic surfactant and a nonionic surfactant. 3. The liquid cleanser composition according to claim 1 or 2, which contains 0.1 to 8% by weight of silicate. 4. The liquid cleanser composition according to claim 1, 2 or 3, which contains 0.1 to 5% by weight of a di- or tricarboxylic acid having 3 to 8 carbon atoms or a salt thereof.