JP2010163299A - Method of removing scale like film - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of removing a scale like film composed of a material such as an alkaline material adhered to a glass surface. <P>SOLUTION: The scale like film is softened, as a preliminary process, by coating the scale like film with an acidic softening agent having a softening action which neutralizes the scale like film adhered to the glass surface for the scale like film to be softened. Subsequently, the softened scale like film is coated with a cleaner for film removal produced by mixing a particulate abradant to a detergent, and then is lightly abraded with a pad for polishing in order to be removed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention is applied to a scaly film formed by attaching an alkali (base) substance to a window glass or mirror of a hot bath facility such as a hot spring or a sauna, a window glass of an automobile, porcelain, ceramics, and the like. As a treatment, an acidic softening treatment material is applied and softened, and then the softened scaly film is coated with a film removing cleaner prepared by mixing an abrasive with a detergent, and the softened scaly film is applied. The present invention relates to a scaly film removing method in which a film is lightly polished and removed with a polishing pad.

In particular, glass surfaces on which alkaline (basic) substances such as silicates, carbonates, aluminum compounds, calcium compounds, and magnesium compounds attached to window glass and mirrors of hot bath facilities such as hot springs and saunas or automobile window glass are dried. When a strong scaly film called “scale” is produced on the glass surface, the scaly film resembles a state where tartar accumulates in the gaps between human teeth, The removal requires a great deal of labor.

Conventionally, as a method of removing the scaly film fixed to the glass surface, a method of removing the scaly film by simply polishing the glass surface with an abrasive is used.

And when the patent document was searched retrospectively about the prior art of the film removal material which removes the scaly film fixed to the glass surface, the film removal material disclosed by the following patent document 1 is well-known.

JP 2000-17290 A

As described above, there has been a problem that considerable cost and labor are required to remove the scaly film on the glass surface using an abrasive.

Furthermore, in the conventional scaly film removal method, when the surface of the glass is polished using an abrasive, the surface of the glass is scraped by the abrasive, and fine scratches are generated on the surface of the glass. was there.

On the other hand, as a method that does not require labor, liquid products that do not contain abrasives are on the market. These products contain hydrofluoric acid and ammonium acid fluoride. In addition to the above ingredients, sodium acid fluoride may be added, but hydrofluoric acid is a poisonous substance. Was a deleterious substance and had the problem of being dangerous.

The liquid product not containing the abrasive has the ability to remove the scaly film very well, but at the same time, hydrofluoric acid, acidic ammonium fluoride, and acidic sodium fluoride contained in the product are Both have the property of dissolving and eroding the glass, and hydrofluoric acid and ammonium acid fluoride have the property of eroding the worker's skin. Accordingly, there is a problem that the product cannot be sold to general users other than those who are qualified to handle toxic substances.

Moreover, since the film removing material disclosed in Patent Document 1 does not contain any poisonous substances such as hydrofluoric acid or deleterious substances such as acidic ammonium fluoride, the film removing material is extremely safe. However, when the film removing material of Patent Document 1 is applied to a scaly film on a glass surface and left for a while, the solvent component contained in the film removing material evaporates, and a metal compound mainly composed of an organometallic compound. The white solid film produced by the above is adhered to the scaly film afterwards, and innumerable cracks are generated in the metal compound layer, and the scaly film is easily detached from the glass surface. When the glass surface is rubbed with a normal abrasive oil film remover, the white solid film is hydrolyzed and disappears from the glass surface as soon as the oil film remover comes into contact with the white solid film. Is That scaly coating being removed is scraped facilitated by the oil film removal material, it is described.

However, in the film removing material described in Patent Document 1, there is no effect of softening the scaly film on the glass surface, and it only causes cracks in the scaly film. There is a problem that the scaly film cannot be removed.

The present invention has been made to solve the above-mentioned problems, and since the scaly film fixed to the glass surface is made of an alkaline substance, an acidic softening treatment material having an action of softening by neutralizing this is provided. Applying as a pre-treatment, the scaly film is softened, and then the soft scaly film is removed by polishing with a film removing cleaner prepared by mixing a fine abrasive with a detergent. An object of the present invention is to provide a scaly film removal method.

In the present invention, an acidic softening treatment material having an effect of softening the scale-like film fixed on the glass surface by neutralization reaction is applied to the scale-like film as a pretreatment, and the scale-like film is softened, After that, the softened scaly film is coated with a film removal cleaner produced by mixing fine abrasives with a detergent, and the scaly film is removed by lightly polishing with a polishing pad. The above-mentioned problems have been solved by adopting means.

The present invention provides a scaly film with an alkali (base) substance attached to a glass or mirror of a hot bath facility such as a hot spring or a sauna, a window glass such as an automobile, porcelain, and ceramics, which is firmly and firmly fixed. Then, the softened scaly film is softened, and then the softened scaly film is coated with a film removing cleaner prepared by mixing and stirring an abrasive in a detergent. Since the scaly film is removed without damaging the glass surface without damaging the glass surface without being strongly polished, the surface can be made as beautiful as new glass. Furthermore, according to the scaly film removal method of the present invention, it is not necessary to polish the glass surface strongly, and it is only lightly polished with a polishing pad, so that the scaly film removal operation is relatively light, simple and easy. However, it has an excellent effect that it can be done in a short period of time and therefore is low in cost.

An acidic softening treatment material having an action of softening by performing a neutralization reaction on the scaly film fixed to the glass surface is applied to the scaly film as a pretreatment to soften the scaly film, and then The softened scaly film is coated with a film-removing cleaner prepared by mixing fine abrasives with detergent, and lightly polished with a polishing pad to remove the scaly without damaging the glass surface. The film can be removed.

The scaly film that adheres to the window glass and mirrors of hot bath facilities such as hot springs and saunas, and window glass of automobiles, etc., is a compound of metal ions and water contained in the water quality of hot spring water and tap water, etc. It is generated with the state.

In the present invention, as described above, the scaly film formed by adhering to the glass surface by the mechanism described above has a metal ion and water contained in water quality such as hot spring water and tap water, and has hydroxide ions. It is generated in the state. That is, since an alkali (base) substance is adhered and hardened, an acidic softening treatment material is applied to the scaly film as a pretreatment to soften the scaly film. Thereafter, the softened scaly film is coated with a film removing cleaner produced by mixing and stirring fine particles of abrasive in a detergent, and the softened scaly film is applied using a polishing pad such as an electric polisher. Is a method of removing a scaly film by lightly polishing and removing. Hereinafter, the present invention will be described in detail.

In the scaly film removal method of the present invention, the acidic softening material used as a pretreatment material is an aqueous solution produced by mixing and stirring acidic chemical substances acetic acid, citric acid, hydrochloric acid and phytic acid in purified water. is there.

The mixing ratio of each chemical substance to purified water was determined by applying the scaly film and repeating the softening test. As a result, acetic acid was 1 to 5% by weight, preferably 2 to 4% by weight based on 100% by weight of purified water. %, Citric acid 1-5% by weight, preferably 2-4% by weight, hydrochloric acid 1-5% by weight, preferably 2-4% by weight, phytic acid 10-15% by weight, preferably 12-14% by weight Then, the acidic softening material produced by stirring and having a pH of about 2 to 3 was optimal for softening the scaly film.

In addition, since all the chemical substances to be mixed with the purified water are acidic chemical substances, it is not necessary to use all of the chemical substances described above, and one chemical substance or a plurality of chemical substances are used. A combination of these may be used. In this case, the scale ratio can be sufficiently softened even if the mixing ratio to the purified water is one chemical substance, a combination of a plurality of chemical substances, or the above mixing ratio is applied as it is.

When the acidic softening treatment material as the pretreatment material is applied to the scaly film, the scaly film is softened by a neutralization reaction.

Next, a film removal cleaner is applied to the softened scaly film, but the film removal cleaner need not be particularly limited as a result of repeating the test of applying to the softened scaly film and removing it by polishing. However, it is preferably 20 to 25% by weight, preferably 22% by weight, of a silica-based abrasive having a particle diameter of about 10 μm with respect to 100% by weight of a detergent containing a surfactant made of a plant-based natural material such as corn. Softening treatment produced by adding and mixing ˜24 wt%, alumina type abrasive 10 to 15 wt%, preferably 12 to 14 wt%, cerium type abrasive 1 to 5 wt%, preferably 2 to 4 wt% The material was optimal for polishing away the softened scaly film.

In addition, although the said film removal cleaner is manufactured by adding and mixing three types of abrasives to a detergent, it is not necessary to use all the abrasives described above, and one abrasive or a plurality of abrasives A combination of these may be used. In this case, the mixing ratio to be added to the detergent may be one abrasive or a combination of a plurality of abrasives, or even if the mixing ratio is applied as it is, the sufficiently soft scaly film is polished. Can be removed.

Then, the film removing cleaner is applied to the scaly film softened by the action of the softening treatment material, and then the soft scaly film is lightly polished using a polishing pad such as an electric polisher or sponge. And remove. The film removal cleaner is manufactured in the form of fine particles, and since the scaly film has already been softened, it is removed by lightly polishing without strongly polishing. It will not hurt.

Claims (5)

An acidic softening treatment material having an action of softening by performing a neutralization reaction on the scaly film fixed to the glass surface is applied to the scaly film as a pretreatment to soften the scaly film, and then A scaly film is obtained by applying a film removing cleaner produced by mixing fine particles of an abrasive to a detergent to the softened scaly film, and lightly polishing and removing it with a polishing pad. Removal method. The softening material according to claim 1 comprises 1 to 5% by weight acetic acid, 1 to 5% by weight citric acid, 1 to 5% by weight hydrochloric acid, and 10 to 15% by weight phytic acid based on 100% by weight purified water. A scaly film removal method characterized by being manufactured by mixing and stirring to a pH of about 2-3. The softening material according to claim 1 is composed of 1 to 5% by weight acetic acid, 1 to 5% by weight citric acid, 1 to 5% by weight hydrochloric acid, and 10 to 15% by weight phytic acid based on 100% by weight purified water. Of these, a scaly film removing method characterized by being manufactured by mixing and stirring at least one kind to a pH of about 2-3. The film removal cleaner according to claim 1, wherein 20 to 25% by weight of a fine-particle silica-based abrasive having a particle diameter of about 10 μm, 100% by weight of a detergent containing a surfactant made of a plant-based natural material, alumina A scaly film removing method characterized by being produced by mixing and stirring 10 to 15% by weight of a system abrasive and 1 to 5% by weight of a cerium-based abrasive. The film removal cleaner according to claim 1, wherein 20 to 25% by weight of a fine-particle silica-based abrasive having a particle diameter of about 10 μm, 100% by weight of a detergent containing a surfactant made of a plant-based natural material, alumina A scaly film removal method characterized by being produced by mixing and stirring at least one of 10-15 wt% of a system abrasive and 1-5 wt% of a cerium-based abrasive.