JPH11290230A - Washing method for bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily wash off contamination such as fur adhered to the surface of a bathtub by washing the bathtub having corrosion resistance with an alkaline washing agent. SOLUTION: As a bathtub having corrosion resistance, a bathtub on the surface of which a corrosion resistant coating is applied or the like is counted, and as the corrosion resistant coating which is applied on the surface of the bathtub, a water-repellent oil-repellent coating, in concrete, a fluorine resin coating is used. Since a contamination component such as fur, which is adhered to the surface of the bathtub, contains an oil component such as sebum, can be easily removed if an alkaline detergent is used. When an alkaline washing agent is used, a normal bathtub made of a resin does not have a sufficient resistance to alkali, and there is a problem of a deterioration by the washing, but by making the bathtub one having corrosion resistance, the problem of the deterioration can be eliminated even when the washing is performed using an alkaline washing agent. Also, when the water-repellent oil-repellent coating is applied, contamination becomes hard to adhere, and also, even when contamination has adhered, it can be easily removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a bathtub, and more particularly, to a method for easily and effectively cleaning a bathtub contaminated with scale.

[0002]

2. Description of the Related Art Generally, a bathtub contaminated with descaling is washed by rubbing the surface of the bathtub with a scrubber or the like using a cleaning agent for the bathtub. In cleaning the bathtub, a neutral cleaning agent is used as a cleaning agent in order to prevent deterioration of the bathtub made of resin such as artificial marble. As the conventional bathtub detergent, a soap residue is decomposed with respect to a surfactant which is a general component of a residential detergent such as a polyoxyethylene type nonionic surfactant, LAS, AES, and AS. In many cases, a chelating agent such as EDTA, citric acid, or malic acid for dissolving is blended.

[0003]

With a neutral bath tub cleaning agent, it is not easy to remove stains such as scales sticking to the surface of the bath tub. For this reason, it is necessary to apply physical force, such as rubbing strongly with a scrub, etc.
There was a problem that a large amount of labor and time were required for cleaning the bathtub.

Further, recently, a bathtub cleaning apparatus has been put to practical use in which a nozzle is provided on the inner wall surface of the bathtub, and a cleaning agent is jetted from the nozzle to automatically clean the inner surface of the bathtub.
Such a bathtub cleaning apparatus does not have a function of scraping off dirt and only sprays a cleaning agent on the surface of the bathtub, so that a sufficient cleaning effect cannot be obtained.

An object of the present invention is to solve the above-mentioned conventional problems and to provide a bathtub cleaning method capable of easily cleaning and removing stains such as scales sticking to the surface of the bathtub.

[0006]

The bath cleaning method of the present invention is characterized in that a bath having corrosion resistance is cleaned with an alkaline cleaning agent.

[0007] Since dirt components such as descaling adhered to the surface of the bathtub contain oils such as sebum, they can be easily removed with an alkaline cleaning agent.

When an alkaline cleaning agent is used, there is a problem of deterioration due to washing due to insufficient alkali resistance in a normal resin bath, but in the present invention, since the bath tub has corrosion resistance, There is no problem of deterioration even when washing with an alkaline detergent. In particular, when a water-repellent and oil-repellent coating is applied as a corrosion-resistant coating on the surface of the bathtub, dirt is less likely to adhere. become. As the water / oil repellent coating, a fluororesin coating is particularly preferable.

[0009]

Embodiments of the present invention will be described below in detail.

In the present invention, the bathtub having corrosion resistance is a bathtub whose surface is provided with a corrosion-resistant coating or
One in which the resin material constituting the bathtub itself has corrosion resistance (water / oil repellency).

In the case of a bathtub provided with a corrosion-resistant coating, the corrosion-resistant coating applied to the surface of the bathtub is as follows.
A water-repellent and oil-repellent coating is preferred from the viewpoints of having corrosion resistance to an alkaline detergent, preventing dirt from adhering, and easily removing adhering dirt. No.

A bathtub made of a corrosion-resistant resin material can be manufactured by kneading a resin matrix with a substance exhibiting corrosion resistance to an alkaline detergent, preferably water and oil repellency.

[0013] As the alkaline detergent used for washing,
From the viewpoint of the cleaning effect, those having strong alkalinity are preferable, but in view of handling properties such as skin irritation, weak alkalinity is preferable. In particular, when a water-repellent and oil-repellent coating such as a fluororesin is applied as the corrosion-resistant coating, the pH is about 7.5 to 8.5 because dirt is hardly adhered and even if dirt is adhered, the adhesion is weak. A sufficient cleaning effect can be obtained even with a weakly alkaline alkaline cleaning agent. As the alkaline detergent, a surfactant to which a chelating agent, an enzyme, an anti-redeposition agent is added as necessary, and sodium carbonate or sodium silicate for making the detergent alkaline is used.

The surfactant is preferably an anionic surfactant, a nonionic surfactant or an amphoteric surfactant.

As anionic surfactants, alkyl benzene sulfonate (ABS, LAS), α-olefin sulfonate (AOS), alkane sulfonate (S
AS), alkyl sulfate (AS), alkyl sulfate polyoxyethylene salt (AES), alkyl phosphate, long chain fatty acid salt (soap) and the like.

Examples of the nonionic surfactant include alkyl polyoxyethylene ether, fatty acid diethanolamide, and alkyl polyglucoside.

Examples of the amphoteric surfactant include dimethylalkylamine oxide and N-alkylbetaine.

As such an alkaline cleaning agent, those which are commercially available not for bathrooms but for clothing, household furniture, and other cleaning agents can be used, and can be used according to the respective usages.

In the present invention, since a chemically high cleaning effect can be obtained by using an alkaline cleaning agent, there is no need to physically rub the surface of the bathtub physically. Dirt can be easily removed. Further, in the bathtub cleaning device, a good cleaning effect can be obtained simply by spraying the alkaline cleaning agent onto the bathtub surface.

After washing with an alkaline detergent, the product is sufficiently washed with water before use.

[0021]

The present invention will be described more specifically below with reference to examples and comparative examples.

Example 1 An artificial marble bath tub having a surface coated with a fluororesin (PTFE) was actually used, and the surface was stained with descaling or the like using the following alkaline cleaning agent. Was diluted 100 times to conduct a washing test, and the washing effect was evaluated based on the following criteria. The results are shown in Table 1.

<Alkaline cleaning agent used> Alkyl ether sulfate ethanolamine, alkyl sulfate ethanolamine, fatty acid methylglucamide, fatty acid ethanolamine, polyoxyethylene alkyl ether, and a commercially available product containing other enzymes and fluorescent agents. Weakly alkaline (pH about 7.5 to 8) detergent for clothing.

<Evaluation Criteria> ○ Dirt can be almost completely removed only by slightly rubbing the surface of the bathtub or with little rubbing.

に よ り By slightly rubbing the bathtub surface,
Most of the dirt can be removed.

× Smearing can hardly be removed by only slightly rubbing the bathtub surface.

Comparative Example 1 A cleaning test was carried out in the same manner as in Example 1 using a commercially available neutral (pH about 7) bathroom cleaner containing a surfactant and others.
The results are shown in Table 1.

Comparative Example 2 A commercially available weakly acidic (pH about 6) bathroom cleaner containing a surfactant, sodium alkyl sulfonate, etc. was used.
A cleaning test was performed in the same manner as in Example 1, and the results are shown in Table 1.

[0029]

[Table 1]

Comparative Example 3 A cleaning test was carried out on an artificial marble tub not coated with PTFE in the same manner as in Example 1. As a result, although a tentative cleaning effect was obtained, PTFE was applied to the surface.
Since no coating is applied, the state of adhesion of dirt is poor, and the bathtub surface has been deteriorated due to repeated washing.

[0031]

As described in detail above, according to the method for cleaning a bathtub of the present invention, dirt such as scales sticking to the surface of the bathtub can be easily washed and removed. In particular, by employing the bathtub cleaning method of the present invention, the weak cleaning power, which was a drawback of the bathtub cleaning device, can be sufficiently compensated for, and a good cleaning effect can be obtained.

According to the method of the third and fourth aspects, the adhesion of dirt to the bathtub surface can be prevented, and the dirt attached can be easily removed, so that a better cleaning effect can be obtained.

Claims (4)

[Claims] 1. A method for cleaning a bathtub, comprising cleaning a bathtub having corrosion resistance with an alkaline cleaning agent. 2. The method for cleaning a bathtub according to claim 1, wherein the bathtub is provided with a corrosion-resistant coating on the surface. 3. The method according to claim 2, wherein the corrosion-resistant coating is a water- and oil-repellent coating. 4. The method for cleaning a bathtub according to claim 3, wherein the water / oil repellent coating is a fluororesin coating.