Abrasive particles and abrasive cleaning agent including the same

The present invention relates to an abrasive powder or granular material having excellent abrasiveness and an abrasive cleaning agent containing the same.

A liquid cleaning agent mainly composed of a surfactant is used to remove stains adhering to the target surface to be cleaned. Although it is possible to remove it by exerting sufficient detergency, dirt such as oil that has been denatured and solidified due to heating or the passage of time attached to cooking utensils and cooking equipment, and water stains and soap around the water are hard. Adhering dirt cannot exert sufficient detergency and is difficult to remove.

Therefore, in the case of stains such as modified and solidified oil or stains that adhere firmly, a cleaning component such as a powdery or liquid abrasive or a cleaning component mixed with powdery soap powder or a liquid is used. By using a mixed abrasive cleaning agent and, if necessary, using a cleaning tool made of cloth, a brush, or a foamed resin, and polishing the target surface to be cleaned through the abrasive material, the polishing power of the abrasive material or It is generally removed by the synergistic effect of the abrasive power of the abrasive and the detergency of the surfactant.

However, many of the abrasives that have been generally used in the past are made of calcium carbonate, silica sand, etc., and many of the surfaces to be cleaned are easily damaged, such as metals such as stainless steel and resins such as plastics. According to the cleaning treatment by polishing described above, these target surfaces are damaged and the appearance of the target object is spoiled.

Here, by setting the average particle size of the abrasive to 20 μm or less, it is possible to prevent the target surface from being damaged by the cleaning treatment by the above-mentioned polishing, but the polishing power of the abrasive is reduced. Therefore, it becomes difficult to remove the dirt adhering to the target surface, and the abrasive material tends to remain on the target surface after the cleaning treatment due to the decrease in ease of rinsing.

Further, a polishing cleaning agent using zeolite as an abrasive material has been developed so as not to damage the target surface to be cleaned (see, for example, Patent Document 1), but with the above-mentioned conventional polishing cleaning agent. In comparison, the polishing power of the abrasive material is low, and it is not possible to sufficiently polish and remove the dirt adhering to the target surface.<patcit num="1"><text>Japanese Unexamined Patent Publication No. 55-5947</text></patcit>

Furthermore, these conventionally used abrasives and abrasive cleaning agents, when used in the oral cavity, are particularly susceptible to stains such as tar adhering to the surface of the tooth as the target surface, such as between teeth. It is necessary to make the abrasive material a small particle size with little damage to the target surface so that it cannot exert sufficient polishing power in the groove of the surface and has little effect on the tooth surface and gingiva. Therefore, the polishing power is limited by these, and it cannot be sufficiently polished and removed.

<p> In view of the above-mentioned difficulties, the present invention makes it difficult to damage the target surface by polishing the target surface even if the target surface is easily damaged by a metal such as stainless steel or a resin such as plastic. At the same time, dirt adhering to the target surface can be sufficiently removed, and polishing power can be exerted even in details such as grooves, and sufficient polishing can be performed even if the particle size is small for use in the oral cavity. An object of the present invention is to provide an abrasive powder or granular material capable of exerting its power and an abrasive cleaning agent containing the abrasive powder or granular material.</p>

<p> Therefore, in order to solve the above-mentioned problems, the abrasive powder or granular material according to the present invention comprises, for example, a melamine formaldehyde resin obtained by a reaction between melamine and formaldehyde and a foaming agent component as an abrasive, JP-A-53-17697. It is a known substance as shown in Japanese Patent Application Laid-Open No. 2-50943, Japanese Patent Application Laid-Open No. 7-157590, etc., for example, the density according to JIS K6401 is 5 to 50 kg / m.³, JIS K6301 tensile strength is 0.6 ~ 1.6kg / cm²The average particle size of the melamine-based resin foam, which is a porous body with an open cell structure and has a physical property of 8 to 20% elongation at break according to JIS K6301 and 80 to 300 cells / 25 mm as measured by JIS K6402. Is to be used as a powder or granular material of 1 mm or less.</p><p> As a result, in the abrasive powder or granular material according to the present invention, the above-mentioned melamine-based resin foam has a finer skeleton and has fine cells as compared with foams such as urethane, cellulose, and ethylene vinyl acetate. Due to its high flexibility and brittleness, even if the target surface is polished, the edges will collapse and peel off due to the frictional force generated between the polishing material and the target surface, resulting in powder particles with a smaller particle size. Therefore, the surface to be polished can be less likely to be damaged as compared with the conventional polishing material, and the melamine-based resin foam is a three-dimensional network-like porous material having a continuous bubble structure, and the surface is a surface. Since it is finely uneven, even a powder or granular material having a small particle size can exert sufficient polishing power, and the peeled powder or granular material can penetrate into more details. Therefore, it is possible to exert more polishing power on fine irregularities and the like on the target surface, so that it is possible to exert polishing power on any target surface and use it.</p><p> Further, by setting the average particle size of the above-mentioned powder or granular material to 100 μm to 300 μm, particularly when the object to be polished is a metal such as stainless steel or a resin such as plastic or the like that is easily damaged, these objects can be used. It is possible to exert polishing power against hard-adhered stains, and it is difficult to damage these objects even if they are polished, so that it becomes a suitable abrasive powder or granular material, and further, the above-mentioned abrasive powder or granular material and the above-mentioned abrasive powder or granular material are necessary. Therefore, a powdery or liquid abrasive cleaning agent having an excellent polishing power, which contains a surfactant and an aqueous medium as appropriate, can be obtained.</p><p> Further, by setting the average particle size to 0.1 μm to 50 μm, the abrasive powder particles mainly for the oral cavity are suitable without damaging the gingiva, etc., especially when the object is used in the oral cavity as the surface of the tooth. It becomes a body, and further, it can be an abrasive cleaning agent having excellent polishing power for the oral cavity, which contains the above-mentioned abrasive powders and granules, a wetting agent, and a thickener.</p>

<p> As described above, in the abrasive powder particles according to the present invention and the abrasive cleaning agent containing the abrasive powder and granules, the target surface to be cleaned can be made of a metal such as stainless steel or a resin such as plastic even by scrubbing the target surface to be cleaned. Even if it is easily damaged, it is difficult to damage the target surface, it is possible to sufficiently remove dirt adhering to the target surface, it is possible to exert polishing power over details such as grooves, and even if the particle size is small. It can be said that it has sufficient polishing power, and the surface of the tooth can be polished even in the oral cavity without damaging the gingiva or the like.</p><p> Further, in addition to the above-mentioned effects, the abrasive powder or granular material according to the present invention and the abrasive cleaning agent containing the abrasive powder or granular material are difficult to be clogged without settling in a water distribution pipe or the like because the abrasive powder or granular material is lightweight. It has become a thing.</p>

The best mode for carrying out the abrasive powder and granular material according to the present invention and the abrasive cleaning agent containing the abrasive powder and granules will be described in detail below.

The abrasive powder or granular material according to the present invention uses a melamine-based resin foam as a powder or granular material and is used as an abrasive to be subjected to a cleaning treatment, so that the surface to be cleaned is damaged by a metal such as stainless steel or a resin such as plastic. It is easy to use and can be used for a wide variety of purposes such as the surface of teeth in the oral cavity.

In this embodiment, the melamine-based resin foam described above is composed of a melamine formaldehyde resin obtained by the reaction of melamine and formaldehyde and a foaming agent component, and has a density of 5 to 50 kg / m according to JIS K6401.³, JIS K6301 tensile strength is 0.6 ~ 1.6kg / cm², JIS K6301 has an elongation rate of 8 to 20% at break, and JIS K6402 measures 80 to 300 cells / 25 mm as a porous body with an open cell structure. Is obtained by pulverizing the melamine-based resin foam into powders and granules having an average particle size of 1 mm or less.

At this time, when the target surface to be cleaned is easily damaged by a metal such as stainless steel or a resin such as plastic, the above-mentioned abrasive powder or granular material is prepared so as not to damage the target surface. The average particle size of the powder or granular material is preferably 100 μm to 300 μm.

The abrasive powder and granules according to the present invention constructed as described above may be used alone as an abrasive for the cleaning treatment, but since they are powder and granules, they can be easily mixed with other powder and granules. Alumina, calcite, silica sand, silica stone, corundum, chromium oxide, titanium oxide, magnesium oxide, silica, aqueous aluminum oxide, zeolite, silicon carbide, calcium carbonate, dolomite, polymer beads, calcium phosphate, etc. It can also be used in combination with an abrasive material of the above, or an abrasive material obtained by mixing a plurality of these required materials.

In addition, since it is made of a highly hydrophilic melamine-based resin foam, it can be appropriately combined with liquids, cleaning components, fragrances, etc., depending on the surface to be cleaned and the application, as with conventional cleaning agents. , Preferably a liquid having an appropriate viscosity, which can be suitable for its use and storage.

Here, the abrasive powder or granular material according to the present invention constructed as described above is based on a fiber structure made of a fiber material or a porous structure made of a resin material as a powder or granular material as it is or as a liquid as described above. As a material, it may be used by adhering or impregnating it.

Examples of the base material of the fiber structure described above include woven fabrics, knitted fabrics, non-woven fabrics, papers and the like, cellulose-based fibers, modified cellulose-based fibers, synthetic fibers and the like, and fibers in which these are mixed. Examples of the above-mentioned cellulose-based fibers include natural fibers such as pulp, cotton and hemp, cellulose-based chemical fibers such as Tencel, biscous rayon and acetate, and fibers obtained by combining a plurality of these required synthetic fibers. Examples thereof include polyethylene-based fibers, polypropylene-based fibers, polyester-based fibers, polyamide-based fibers, polyacrylonitrile-based fibers, polyvinyl alcohol-based fibers, and the like, and fibers in which a plurality of these required are compounded or mixed.

Examples of the base material of the porous structure include a cellulose-based resin, a synthetic resin, and a resin obtained by mixing a plurality of these, and the above-mentioned cellulose-based resin includes, for example, biscous rayon, acetate, and the like. Examples of the synthetic resin obtained include polyethylene-based resin, polypropylene-based resin, polyester-based resin, polyamide-based resin, polyacrylonitrile-based resin, polyvinyl alcohol-based resin, and urethane-based resin.

Due to the configuration as described above, the abrasive powder granules according to the present invention can be used not only around water such as tableware, cooking utensils and cooking equipment in the kitchen, bathtubs made of stainless steel and FRP in the bathroom, but also furniture and floors. It can be used in a wide variety of ways for cleaning walls, automobile foil, etc.

Further, the abrasive powder or granular material according to the present invention configured as described above contains the abrasive powder or granular material and at least one kind of surfactant in order to exert more polishing and cleaning effects. It is preferably used as a cleaning agent, and preferably as a liquid abrasive cleaning agent containing water as an aqueous medium.

As the above-mentioned surfactant, it is preferable to use an anionic, nonionic, cationic or amphoteric surfactant, and as the anionic surfactant, an alkylbenzene sulfonate, an alkyl sulfonate, or an alkyl ether sulfate ester is used. Examples thereof include sulfonate-based, sulfate-based, and phosphate-based anionic surfactants such as salts and polyoxyalkylene alkylphenyl ether sulfate ester salts. Examples of nonionic surfactants include polyoxyalkylene alkyl ether and polyoxyalkylene alkylphenyl. Examples thereof include ether, fatty acid alkanolamide, fatty acid alkanolamide alkylene oxide adduct, amine oxide such as alkyldimethylamine oxide, and examples of the cationic surfactant include long-chain alkyltrimethylammonium salt and long-chain alkyldimethylbenzylammonium salt. Examples thereof include a long-chain alkylpyridinium salt and the like, a quaternary ammonium salt and the like, examples of the amphoteric surfactant include alkyldimethylacetate betaine and alkylamide betaine, and the above-mentioned aqueous medium is preferably water. Although it is used, a water-soluble solvent such as alcohol, glycol, ketone, or ester can be used in a small amount.

The abrasive powder or abrasive or abrasive cleaning agent according to the present invention constructed as described above preferably has an average particle size of 0.1 μm to 50 μm so as not to damage the tooth surface, gingiva, or the like. By appropriately containing a wetting agent and a thickener in combination, an oral abrasive cleaning agent can be obtained.

Examples of the wetting agent contained in the above-mentioned oral abrasive cleaning agent include glycerin, sorbitol, polyethylene glycol, propylene glycol, ethylene glycol, etc., or a plurality of these as required, and the entire oral abrasive cleaning agent can be used in combination. It is preferably used as a weight of 20% to 70% of the weight.

Examples of the thickener contained in the above-mentioned oral abrasive cleaning agent include carrageenan, sodium carboxymethyl cellulose, sodium alginate, xanthan gum, polyvinyl alcohol, a polymer of methacrylate, a polymer of acrylate, and water-soluble such as polyvinylpyrrolidone. It is preferable to use a sex polymer compound or the like, or a plurality of these in combination as required, as a weight of 0.1% to 5% of the total weight of the oral abrasive cleaning agent.

Further, the above-mentioned abrasive cleaning agent for oral cavity includes the above-mentioned abrasive powder and granules or abrasive cleaning agent, wetting agent, thickener, and appropriately foaming agents such as sodium lauryl sulfate and sucrose fatty acid ester. , Sweeteners such as sodium saccharin and xylitol, preservatives such as sodium dihydroacetate, essential oils such as sparemint, fragrances such as eugenol and carboxylics, etc. Can be appropriately contained.