JPH0489007A - Cleaner - Google Patents

Abstract

PURPOSE:To obtain a cleaner to which dust and refuse do not adhere again by providing a cleaner comprising a cleaning portion formed by a material having conductivity and an electrostatic discharge electrode for discharging static electricity conducted from the cleaning portion in the air. CONSTITUTION:The reference numeral 1 designates an insulating case made of ABS resin. An electrostatic discharge electrode 2 formed by a Naslon web about 5cm length, 5cm width and 0.5cm thickness is disposed in the insulating case 1. An acrylic fiber of about 10mum fineness which is a material having conductivity is treated with a water solution containing copper sulfate and sodium thiosulfate to form a conductive acrylic fiber to which copper sulfide adheres. Such acrylic fibers are tied up in a bundle to form a brush-like cleaning portion 3 having bristles about 50mm long. The cleaning portion 3 is fixed to the side wall of the insulating case 1. One end of the cleaning portion is connected to the electrostatic discharge electrode 2 to form a cleaner. The cleaner can remove dust and refuge and static electricity at the same time, so that readhesion is not caused. Thus, a very excellent cleaner can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a cleaner for removing dust and dirt, and more particularly to a cleaner having a static electricity removal function to prevent dust and dirt from re-adhering.

(Prior Art) Brush cleaners that remove dust and dirt using electrostatic action have been known. This uses synthetic fibers such as polypropylene for the brush part, and uses static electricity generated by friction between the fibers to attract dust and dirt to the brush part and remove it.

(Problems to be Solved by the Invention) In the leaner as described above, dust and dirt re-deposit. In other words, the object to be cleaned from which dust and dirt have been removed is strongly electrostatically charged by the static electricity of the cleaner, causing the problem that dust and dirt are likely to re-adhere to the object. Also, in recent years.

○A equipment and AV equipment, which are used more frequently, generate a lot of static electricity, and in particular, dust and dirt are often attracted to cathode ray tubes, but cleaners that use the adsorption power of static electricity, such as those mentioned above, can remove dust and dirt. There was a problem in that it was not possible to completely absorb dust from the cathode ray tube to the brush portion, and that dust and dirt were likely to re-adhere due to the static electricity of the cathode ray tube.

An object of the present invention is to provide a cleaner to which dust and dirt do not adhere again.

(Means for Solving the Problems) The gist of the present invention is a cleaner comprising at least a cleaning section made of a conductive material and an electrostatic discharge electrode that discharges static electricity conducted from the cleaning section into the air. It is.

The cleaning section is an input section for removing dust, dirt, etc., and for conducting static electricity from the object to be cleaned. The conductive material used must have a specific resistance of 10" (ohm centimeters) or less, and the material and shape can be arbitrary. Specific materials include conductive synthetic fibers, conductive rubber sheets, and conductive materials. Examples include conductive plastic sheets, conductive woven fabrics, conductive non-woven fabrics, etc., and the shape can be any shape such as a brush, comb, spatula, etc., and the size is also arbitrary.

In particular, those made by bundling conductive synthetic fibers into a brush shape,
Even if the surface of the object to be cleaned has narrow, uneven parts, the brush can penetrate, removing dust, dirt, etc.
It has the advantage of being able to remove static electricity from every corner without damaging the object to be cleaned. Spatula-shaped sheets made of conductive rubber sheets or conductive plastic sheets can clean large surfaces and remove static electricity. It has the advantage of being able to be done all at once.

Conductive synthetic fibers include conventionally known synthetic fibers such as polyester, polyamide, polyacrylonitrile, polyethylene, polypropylene, and polyolefin, plated with conductive metals, copper sulfate, and sulfur-containing reduced products (e.g. Synthetic fibers that are treated with an aqueous solution containing copper sulfate (sodium 1,000 sulfate) or a few percent or more of copper sulfide, or treated with an aqueous solution containing copper sulfate and an iodine-containing substance (e.g., potassium iodide) Synthetic fibers in which several percent or more of copper iodide is attached or contained 1. Synthetic fibers in which 20% or more of conductive substances such as copper powder or carbon black are kneaded in during the manufacturing process of synthetic fibers. Examples include carbon fibers made by carbonizing. Conductive woven fabrics and conductive non-woven fabrics can be easily obtained by subjecting woven fabrics and non-woven fabrics to the same treatment as the above-mentioned fibers, and conductive rubber sheets and conductive plastic sheets can be obtained by applying conductive materials such as carbon blanks to rubber or plastic. It can be easily obtained by adding a chemical substance and molding it.

The electrostatic discharge electrode is an output part for discharging static electricity conducted from the cleaning part into the air.

For the electrostatic discharge electrode, conductive synthetic fibers, metal fibers, and composite fibers that are conductive and have a large surface area can be used. Preferably.

The conductive synthetic fibers mentioned above can be used, such as Cellmec (Kuraray) and Sandalon (Japan Long Hair Dying).
(manufactured by Toshi), trading cards (manufactured by Toshi ■), etc. As the metal fiber, a thinned fiber formed by passing a metal wire through a die can be used, such as Naslon (manufactured by Nippon Seisen Division).

Composite fiber is metalian (carbon-coated fiber)
Teijin ■), 5A-7 (manufactured by Toshi ■), which is a fiber containing carbon particles, Beltron (manufactured by Kanebo ■),
KE-9 (manufactured by Toyobo), Kurakabo (manufactured by NoriRare),
Examples include Alpha (manufactured by Unitika). In particular, metal fibers are preferred in terms of durability.

The cleaning part and the electrostatic discharge electrode may be in direct contact with each other or may be in contact through another conductive member such as a metal, as long as the cleaning part and the electrostatic discharge electrode are electrically connected. .

The use of the cleaner of the present invention is no different from conventional cleaners. That is, by cleaning the surface of the part to be cleaned by bringing the cleaning part into contact with or in contact with the part to be cleaned, dust and dirt on the surface of the part to be cleaned can be removed, as well as static electricity.

Note that if the electrostatic discharge electrode is directly touched by hands or fingers, static electricity may transfer to the human body and cause electrostatic charging of the human body, so it is preferable to store it in an insulating case made of ABS, PP, PE, etc. In this case, since the discharge speed of the electrostatic discharge electrode is somewhat slow, it is also possible to make a hole in a part of the insulating case to speed up the air discharge.

Furthermore, a liquid crystal display can be installed between the cleaning section and the electrostatic discharge electrode so that it can be visually checked whether static electricity is generated in the section to be cleaned of OA equipment or AV equipment. In this case, the input electrode of the liquid crystal display is connected to the cleaning unit, and the output electrode is connected to the electrostatic discharge electrode. When static electricity enters the cleaning unit, the liquid crystal display will display it, and disappear when it is discharged from the static electricity discharge electrode, allowing you to confirm whether static electricity has been generated or removed. In addition to liquid crystal displays, neon tubes and piezoelectric buzzers can also be used.

A field effect type liquid crystal is effective for the liquid crystal display, and regular products can be used for neon tubes and piezoelectric buzzers.

When using a liquid crystal display, it is better to install a protective resistor to protect the display. A protective resistor is installed between the human electrode and the output electrode of the liquid crystal display.

(Function) In the cleaner of the present invention, the cleaning part is made of a conductive material, so when cleaning the object to be cleaned, static electricity on the object to be cleaned moves to the electrostatic discharge electrode via the cleaning part. ,
Since the electrostatic discharge electrode discharges air into the air, the adhesion of dust and dirt on the surface of the object to be cleaned becomes weaker, so it can be easily removed and will not re-adhere.

(Example) The present invention will be explained in more detail with reference to Examples below.
The invention is not limited to the examples.

Example 1 (Figure 1) Reference numeral 1 is an insulating case made of ABS resin.

Inside this insulating case 1, there are
cm Naslon web (fiber diameter 8μm, basis weight 200g
Copper sulfide is attached by treating acrylic fiber, which is a conductive material, with a diameter of about 1 μm, with an aqueous solution containing copper sulfate and sodium thiosulfate. The cleaning part 3 is made by bundling the conductive acrylic fibers into a brush shape with a bristles length of 50 mm! It was fixed to the side wall of the edge case 1, and one end thereof was connected to an electrostatic discharge electrode 2 to serve as a cleaner.

Example 2 (Figure 1) In Example 1, the electrostatic discharge electrode was made of Naslon web (
a, fiber diameter 4μm, basis weight 100g/m2 manufactured by Nippon Seigaku)
The cleaning part was made by treating polypropylene fibers of approximately 10 μm in diameter with an aqueous solution containing copper sulfate and potassium iodide, and then bundling the conductive polypropylene fibers to which copper iodide was attached to form a brush shape with a bristles length of 50 mm. A cleaner was prepared in the same manner as in Example 1 except for the following steps.

Embodiment 3 (FIG. 2) In Embodiment 1, instead of bringing the electrostatic discharge electrode 2 and the cleaning section 3 into direct contact, a field-effect nematic liquid crystal display 4 is arranged between them, and the cleaning section 3 and the liquid crystal display 4 were connected by the input electrode 5, the electrostatic discharge electrode 2 and the liquid crystal display 4 were connected by the output electrode 6, and the input electrode 5 and the output electrode 6 were connected by the protective resistor 7. A cleaner was prepared in the same manner as in Example 1.

Comparative Example 1 A commercially available brush cleaner (brush part made of acrylic fiber) was used.

Comparative Example 2 A commercially available brush cleaner (brush part made of nylon fiber) was used.

(Effects of the Invention) A cleaning test was conducted using the cleaners obtained in Examples 1 to 3 and Comparative Example 1.2. The results are shown in Table 1.

Table 1 [Cleaning test] Plastic plate made of vinyl chloride (height 15 cm, width 20
cm) is charged to 10 KV, and fine particles of carbon black are electrostatically attached.

The carbon black was removed using the cleaner obtained in each Example and Comparative Example, and the charging voltage of the plastic plate was measured. After the measurement, fine particles of carbon black were brought close to the plastic plate and the situation was observed to see if there was any re-adhesion.

As explained in detail above, the cleaner according to the present invention is very excellent because it removes dust, dirt, etc. and also removes static electricity, so there is no re-adhesion. The third embodiment can also be used as a checker for checking presence or absence of air, as described above.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being a longitudinal sectional view of another embodiment.

Claims (1)

[Claims] A cleaner comprising at least a cleaning section made of a conductive material and an electrostatic discharge electrode that discharges static electricity conducted from the cleaning section into the air.