JPS6213498A - Detergent - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a cleaning agent, and particularly to a cleaning agent suitable for cleaning guide rollers of escalators.

[Background of the invention]

The handrail in a typical escalator is endlessly connected and supported by a handrail guide, a gate roller, and a guide roller, and is driven via a drive booth.

The handrail drive mechanism is configured as described above, so if a passenger touches the handrail and gets it dirty, this dirt will be transferred to the guide rollers. Although it is necessary to clean the guide rollers, until now no proposals have been made regarding the cleaning of the guide rollers.

Therefore, as previously proposed, the inventor of the present invention proposed that the surface of a thin film body coated with an adhesive substance on one side, on which the adhesive substance is not applied,
We have invented a guide roller cleaning tool that has an impregnated part impregnated with a liquid cleaning agent and a cloth-like liquid absorbent. However, the cleaning effect of this cleaning tool varies depending on the cleaning agent, and it was necessary to find a desirable cleaning agent.

[Purpose of the invention]

An object of the present invention is to provide a cleaning agent with high cleaning effect for use in cleaning guide rollers.

[Summary of the invention]

The present invention has a high cleaning effect as a cleaning agent for guide rollers, has a fast evaporation rate, does not adversely affect the Hypalon rubber on the surface of the handrail, and does not produce much foam in terms of workability. Taking this into consideration, the product is characterized by using ethyl alcohol and water as solvents, and containing a sodium alkylbenzene sulfonate type surfactant and a polyoxyethylene alkylphenyl ether type surfactant.

[Embodiments of the invention]

Examples of the present invention will be described below.

Various experiments have shown that sodium alkylbenzene sulfonate type surfactants are effective in terms of cleaning power, and adding ethyl alcohol, which forms a low-boiling azeotrope with water as a solvent to accelerate the evaporation rate, improves cleaning performance. It was found that the strength was increased by the addition of ethyl alcohol due to a synergistic effect, and a desirable cleaning effect was obtained.

In addition, in order to prevent foaming from forming too much, a polyoxyethylene alkylphenyl ether type surfactant was used as an antifoaming agent.

Next, an example of a cleaning agent based on such experimental results will be described.

First, 10% by weight of a sodium alkylbenzene sulfonate type surfactant, 1% by weight of a polyoxyethylene alkylphenyl ether type surfactant, 20% by weight of ethyl alcohol, and 69% by weight of water were mixed together. A homogeneous solution was obtained.

The above solution was actually used to clean an escalator that had been in operation for 7 years. First, after cleaning the surface of the handrail, attach a cleaning tool to the surface of the handrail, and apply 30mj of the above solution to the impregnated area on the top surface! Apply the coating, move the handrail so that the impregnated part hits the guide roller, and then move the handrail 2 times.
It rotated.

As a result, since the cleaning agent was applied to the guide roller and wiped off, the dirt could be almost completely removed.

Furthermore, five escalators each having been in service for five years and six years were cleaned in the same way, and the indoor rollers were almost completely cleaned in the same way.

As can be seen from the above experimental results, the cleaning effect of this cleaning agent was enhanced by the ethyl alcohol used to accelerate the evaporation rate, and an excellent cleaning effect was obtained. Experiments have shown that the polyoxyethylene alkyl phenyl ether type surfactant used as an antifoaming agent preferably has an HLB value of 6 or less. Furthermore, this cleaning agent had no adverse effect on the Hypalon rubber, which is the surface material of the handrail.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to provide a highly effective cleaning agent that can remove dirt from guide rollers without adversely affecting the handrail.

Claims (1)

[Scope of Claims] 1. A cleaning agent characterized by using water and ethyl alcohol as solvents and containing a sodium alkylbenzene sulfonate type surfactant and a polyoxyethylene alkylphenyl ether type surfactant. 2. The cleaning agent according to claim 1, wherein the polyoxyethylene alkylphenyl ether type surfactant has an HLB value of 6 or less.