JP2000297297A - Cleanser detergent - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleanser capable of cleaning dirt without forming scratches. SOLUTION: This cleanser is obtained by mixing spherical fine particles with a surfactant. The spherical fine particles are powder of a metal oxide and having shapes near to spheres. The spherical fine particles most preferably have true sphere shapes, but the shapes near to the spheres can be allowed in the invention. The spherical fine particles of alumina, silica, titania, zirconia, zirconia-containing spherical silica, titania-containing spherical silica, magnesia- alumina complex oxide, alumina-silica complex oxide, or the like, are available as the kind of the spherical particles at the present time and each thereof can be used in the invention. The particles of the alumina are good in dispersibility, and therefore, a smaller amount thereof exhibits the effect, and hardly causes separation to two phases.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cleanser detergent.

[0002]

2. Description of the Related Art Conventional detergents have a weak ability to remove sticky dirt. Therefore, a powder cleanser or a liquid cleanser is used for persistent dirt. This is a mixture of a surfactant and fine particles such as calcium carbonate and diatomaceous earth, and has a strong power to remove dirt. However, cleansers have the disadvantage of damaging precious metal surfaces and painted surfaces and losing luster.

[0003]

SUMMARY OF THE INVENTION A cleanser detergent which strongly removes stains without damaging precious metal surfaces and painted surfaces.

[0004]

The present invention is characterized in that spherical fine particles are dispersed in a surfactant. The spherical fine particles are developed by Admatechs Co., Ltd. ahead of the world, and are metal oxide powders having a shape close to a sphere. In the present invention, a true sphere is most preferable, but a sphere may be used.

At present, alumina, silica, titania, zirconia, zirconia-containing spherical silica, titania-containing spherical silica, magnesia-alumina composite oxide, alumina-silica composite oxide, and the like are available. It can be used in the present invention. Other than these can be used as long as they are spherical. In addition,
Alumina has good dispersibility and is effective in smaller amounts.
Layer separation hardly occurs.

[0006] The surfactant to be dispersed may be any, and may be any of nonionic, cationic, anionic and zwitterionic. However, dispersion is difficult, and stable dispersion is difficult to obtain with a low-concentration aqueous solution. Therefore, it is necessary to add a gelling agent or a thickener to form a gel. Although it depends on the surfactant, it tends to be stably dispersed at a high concentration of, for example, a 20% aqueous solution or more. In the case of a powder, it is sufficient to mix well. In the case of an individual, it is first melted, mixed with fine particles, and then fixed. The mixing ratio is 50% surfactant 3
When 1 or more (weight ratio) of the spherical powder is added, preferable results (stable dispersion and enhanced detergency) can be obtained. However, it depends on the nature of both.

[0007] A gelling agent or a thickener is used in addition to a low-concentration surfactant solution to stabilize the dispersion of fine particles.
Cationic and zwitterionic surfactants are often toxic and are used at low concentrations, which is effective in this case. As the gelling agent and the thickening agent, a polymer electrolyte such as a carboxymethylcellulose salt and a superabsorbent polymer can be used. However, anything may be used as long as the viscosity increases with a small amount.

The diameter of the fine particles is preferably about 0.5 μm to 10 μm.

[0009]

According to the present invention, dirt can be removed without damaging the surface of gold and silver products. Blackened silverware can be easily replaced. Does not damage the paint, paint, etc. of the car. Also, dirt that is difficult to fall with a surfactant easily falls due to the action of the fine particles.

[0010]

Example 1 Admatex spherical alumina (0.7 μm)
m) was mixed with 2.5 parts of Grace surfactant sold by Cabot Japan in a weight ratio of 1 and mixed well to obtain a white spherical alumina detergent. It was applied to silverware and rubbed with paper to remove black stains easily and completely.

[0011]

Example 2 Bridge 35 was melted and mixed with 1 in a ratio of 0.5 of Admatex spherical alumina to obtain a solid detergent.

[0012]

Example 3 Epan 485 (powder) 4 manufactured by Dai-ichi Kogyo Chemical Co., Ltd.
Was mixed at a ratio of 1 spherical silica to obtain a powder detergent.

Claims (1)

[Claims] 1. A cleanser in which spherical fine particles are dispersed in a surfactant.