JPH08293393A - Cleaning material - Google Patents

Abstract

PURPOSE: To clean an object to be cleaned without electrifying it by fixing a conductive member on at least one end of a rod-like body, and enabling static elimination by corona discharge. CONSTITUTION: A unidirectional web is obtained by carding 100% thin fibers obtained by dividing a polyester component A by polyamide components B radially extending from the fiber axis to the fiber surface into eight parts, and provided with a chrysanthemum shape in section and the specified size and length. This web and a cross fiber web crossed by a cross layer are laminated by the specified weight ratio, so as to obtain a laminated fiber web. A nonwoven fabric of specified weight per unit area and of specified thickness is obtained by injecting water flow having the specified pressure from the specified nozzle plate, and deriving and interweaving thin fibers to this laminated web. The iron chloride having the specified concentration is impregnated into this nonwoven fabric and brought in contact with and overlapped on a pyrrole monomer gas, so as to obtain a conductive member covered with polypyrrole. After the conductive member cut to the specified width is wound on one end of the cylindrical rod-like body, the conductive member end is coated with silicone rubber and heat-treated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning material suitable for cleaning a place where static electricity is easily generated by friction.

[0002]

2. Description of the Related Art For example, when connecting an optical fiber,
If the optical fiber itself or the splicer for the optical fiber is dirty, the connection may be poor and a splice loss may occur. Therefore, so as not to contaminate the optical fiber, a member for removing the optical fiber coating, a member for cutting the optical fiber core,
Alternatively, the connector for the optical fiber core was cleaned with a cotton swab, but there was a problem that static electricity was generated due to friction with the cotton swab, and dust in the atmosphere was likely to adhere. for that reason,
In order to suppress the generation of static electricity, there is a method of cleaning with a cotton swab soaked with alcohol, but this method has a problem that it takes time for the alcohol to volatilize and an alcohol residue remains.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has excellent workability in that it can be cleaned without being charged with static electricity or leaving a residue of liquid such as alcohol. The purpose is to provide wood.

[0004]

The cleaning material of the present invention is a bar-shaped member having a conductive member fixed to at least one end thereof.

[0005]

In the cleaning material of the present invention, a conductive member is fixed to at least one end of a rod-shaped body and charge can be removed by corona discharge, so that the object to be cleaned can be cleaned without being charged. Further, since the charge can be removed by corona discharge, it is not necessary to use a liquid such as alcohol, so that no liquid residue is generated.

The cleaning material of the present invention uses a rod-shaped member so as to be excellent in workability and workability in a narrow space. The length and thickness of the rod-shaped body vary depending on the item to be cleaned. For example, when cleaning a narrow space such as a splicer for optical fiber cores, the length is about 3 to 20 cm and the thickness is 0.5 to 0.5 cm.
When using a rod of about 5 mm and cleaning the floor, a rod of about 20 to 180 cm in length and about 1 to 5 cm in thickness is used. The rod-shaped body may be made of plastic, wood, paper, or the like, and the material is not particularly limited.

The cleaning material of the present invention is a bar-shaped body having a conductive member fixed to at least one end thereof. As the conductive member, for example, fiber, fiber sheet, foam,
Alternatively, a porous body composed of these is electroless plated, metal deposited, sputtered, coated with a conductive coating, or
Conductive processed by a method such as coating with an electron conjugated polymer, a fiber sheet using the conductive processed fiber, a fiber filled with a conductive filler such as metal powder or carbon particles, or a conductive filler filled with the conductive filler. There is a fiber sheet that uses the produced fiber. Among these,
A conductive member, which is partially or entirely coated with a soft electron-conjugated polymer, is preferable because it does not damage the object to be cleaned and has excellent durability. Hereinafter, description will be given based on a conductive member obtained by coating a fiber sheet with an electron-conjugated polymer, which is suitable because it can be manufactured without impairing conductivity. In this case, some fibers may not be completely covered with the electron conjugated polymer.

As fibers constituting the fiber sheet, for example, natural fibers such as silk, wool, cotton and hemp, regenerated fibers such as rayon fibers, semi-synthetic fibers such as acetate fibers, polyamide fibers, polyvinyl alcohol fibers, acrylic fibers, Synthetic fibers such as polyester fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, polyurethane fibers, polyethylene fibers, polypropylene fibers and aromatic polyamide fibers can be used. In addition, a core-sheath type heat-fusible fiber composed of two or more resin components is fused to improve strength, abrasion resistance, and lint-free property, or a composite such as a side-by-side type or an eccentric type. It is also possible to express crimp of the fiber to form a bulky fiber sheet.

Fine fibers derived from composite fibers (hereinafter referred to as "fine fiberized fibers") which can be finely made into fine fibers having a fineness of 0.5 denier or less by mechanical treatment and / or chemical treatment. Is a fine fiber because it is excellent in static elimination by corona discharge, cleanability of objects to be cleaned, retention of cleaned dust, etc., and is not only less likely to damage the objects to be cleaned, but also excellent in strength. Can be preferably used. As the fine fiberized fiber, for example, as shown in FIG. 1 showing a cross section of the fine fiberized fiber composed of two components, a sea-island type fiber in which another component B is arranged in an island shape in one component A, shown in FIG. As described above, a multi-bimetal type fiber in which one component A and another component B are alternately laminated in layers, or as shown in FIG. 3, one component A is divided by another component B extending from the vicinity of the fiber axis to the fiber surface. There are type fibers. Among these, fine fibers derived from multiple bimetal type fibers and chrysanthemum type fibers have irregular cross-sectional shapes such as a substantially trapezoidal shape and a fan shape, and are more excellent in cleanability, and therefore can be suitably used.

The resin component constituting this fine fiber is 2
As long as it is composed of more than one component, for example, as a combination of two components, polyamide resin and polyester resin, polyamide resin and polyolefin resin, polyester resin and polyolefin resin, polyester resin and polyacrylonitrile. There are different types of resin components such as resin, polyamide type resin and polyacrylonitrile type resin, polyolefin type resin and polyacrylonitrile type resin, or similar type resin components such as polypropylene and polyethylene.

The fine fiber derived from such fine fiber is preferably contained in the fiber sheet in an amount of 5% by weight or more. The more the fine fiber is, the higher the corona discharge efficiency is and the better the static elimination performance is. The content is preferably 50% by weight or more, and most preferably 90% by weight or more.

The fiber sheet constituting the conductive member of the present invention includes, for example, woven fabrics, knitted fabrics, and non-woven fabrics. Since the woven fabrics and knitted fabrics have excellent abrasion resistance, they are suitable for cleaning a narrow space. In the non-woven fabric, by making the orientation direction of the fibers the thickness direction, it is possible to increase the number of fiber ends that can participate in corona discharge, and improve the charge removal property by corona discharge.
Moreover, it is preferable because it has a three-dimensional void and can hold dust and the like wiped from the object to be cleaned in this void. The nonwoven fabric in which the orientation direction of the fibers is the thickness direction is, for example, a fiber web obtained by a dry method such as a card method or an air lay method, a wet method, a direct method such as a spunbond method or a melt blow method, and a fluid such as water. It can be obtained by entanglement by a mechanical external force such as a flow or a needle. Note that, the entanglement with the former fluid flow makes it possible to obtain a non-woven fabric that is more uniform and excellent in strength, and thus is a more preferable method.

When a mechanical external force such as a fluid flow or a needle is applied to a fiber web containing the finely-fiberized fibers such as the multiple bimetal type fibers and the chrysanthemum type fibers described above, the fine fibers are entangled at the same time as the fine fibers are derived. This is a rational method for forming a non-woven fabric that does not require any additional derivative process. Also,
Since fine voids can be formed by the entanglement of fine fibers, it also has the advantage of being more excellent in retaining dust and the like.

Even if the cleaning material having the conductive member made of the non-woven fabric fixed thereto is used in a narrow space,
Emulsion type, solvent type,
It is preferable to fix by a binder such as a powder system or the fusion of fibers constituting the non-woven fabric. By fixing with the binder or the fibers constituting the non-woven fabric, it is preferable to partially fix the fibers so that the fiber ends are not reduced and the charge removal property is not deteriorated.
More specifically, the fixed area per piece is 0.01-5 mm ²
Therefore, the total fixed area is preferably 5 to 50% of the total area of the nonwoven fabric. If the non-woven fabric-constituting fibers are partially fused by an embossing roll, ultrasonic waves, or the like, this is a more suitable fixing method, because falling objects are less likely to occur during use of the cleaning material.

Next, the fiber sheet is coated with the electron-conjugated polymer. Since the fiber sheet is porous, almost the entire fiber sheet can be coated with the electron-conjugated polymer. Since this electron-conjugated polymer has excellent adhesion to the fiber sheet, it has excellent durability, and also has excellent flexibility, so that it does not damage the object to be cleaned.

The surface resistance of the conductive member obtained by coating with the electron conjugated polymer is preferably 1 × 10 ⁹ Ω / □ or less. If the surface resistance exceeds 1 × 10 ⁹ Ω / □, the static elimination performance is significantly reduced. More preferably, it is 1 × 1.
It is 0 ⁶ Ω / □ or less, and most preferably 1 × 10 ⁴ Ω / □ or less.

As a coating method with this electron-conjugated polymer, for example, a method of impregnating a fiber sheet with a solution containing an oxidizing agent such as iron (III) chloride or copper (II) chloride, and then contacting with a monomer to polymerize is there. As a method for contacting with the monomer, when the monomer is in a liquid state, the fiber sheet to which the oxidant is attached may be impregnated with, coated with, or sprayed, and when the monomer is in a gas state, in a container filled with the monomer, A fiber sheet to which an oxidant is attached may be placed.

Examples of the monomer constituting this electron-conjugated polymer include acetylene, benzene, aniline,
Phenylacetylene, pyrrole, furan, thiophene,
There are indole and derivatives of these monomers.
Among these, pyrrole is excellent in conductivity and polymerizability,
Since it is excellent in static elimination and durability, it can be used particularly preferably.

Since the cleaning material of the present invention can be cleaned without charging the object to be cleaned, for example, a member for removing the optical fiber coating, a member for cutting the optical fiber core,
Suitable for cleaning optical fiber core connectors, keyboards for personal computers, inside printers, narrow areas such as IC terminals, cameras (for example, lenses and their surroundings), glasses (for example, lenses and their edges), floors, etc. is there.

Examples of the present invention will be described below, but the invention is not limited to the following examples. The surface resistance is calculated by Loresta AP MCP-T400 (Mitsubishi Petrochemical Co., Ltd.).
It is the value measured by (made by). The electrification voltage is the electrification voltage of the polyimide film after the polyimide film has been wiped back and forth 5 times by the conductive member.
Friction electrification voltage test device conforming to the standard, L1092 reference method (Kanebo Engineering Co., Ltd., EST-7)
Is a value measured under the conditions of a temperature of 20 ° C. and a humidity of 50%.

[0021]

【Example】

(Example 1) As shown in FIG. 3 (a), a polyester component (A) was divided into eight by a polyamide component (B) extending radially from the fiber axis toward the fiber surface, which was a chrysanthemum-shaped cross-sectional shape. Having a fineness of 2 denier and a fiber length of 38
mm fine fiber (fineness of polyester component is 0.
Fine fibers of 175 denier and fine fibers of polyamide with a fineness of 0.075 denier can be derived) 100%
The unidirectional fiber web obtained by carding the unidirectional fiber web and the crossed fiber web obtained by intersecting the unidirectional fiber web with a cross layer were laminated at a weight ratio of 1: 4 to obtain a laminated fiber web. This laminated fiber web has a diameter of 0.15 mm,
From a nozzle plate with a pitch of 0.6 mm, pressure 95 kg / cm ²
After ejecting a water flow of, to entangle and generate fine fibers, an embossing roll with a temperature of 185 ° C. and a linear pressure of 60 kg / cm (convex area 0.25 mm ² , convex area of embossing roll occupies 16%) Partially fused through the space and weight 8
A non-woven fabric of 5 g / m ² and a thickness of 0.4 mm at the non-fused portion was obtained. Then, this non-woven fabric was impregnated with iron (III) chloride at a concentration of 30%, and then the pyrrole solution was brought into contact with the vaporized pyrrole monomer gas to polymerize, and the whole non-woven fabric was coated with polypyrrole. A conductive member having a voltage of 0.5 KV was obtained. Then, a conductive member cut to a width of 12 mm was wound around one end of a cylindrical rod-shaped body made of plastic having a length of 8 cm and a thickness of 2.5 mm until the thickness became 4.5 mm, and then the end of the conductive member was cut. A one-component thermosetting silicone rubber was applied to the part and heat-treated at 120 ° C. to fix the conductive member to the rod-shaped body to obtain a cleaning material. Optical fiber splicer (Sumitomo Electric Co., Ltd.)
(Type-85, manufactured by Mitsubishi)
When the groove, the bottom surface of the fiber clamp holding the optical fiber, and the mirror were cleaned, it was possible to clean the surface without adhering dust in the atmosphere.

(Example 2) A cotton swab having a length of 8 cm and a thickness of 2.5 mm and having a width of 12 mm and a cotton fiber wound around both ends of a cylindrical rod-shaped body made of plastic to a thickness of 4.5 mm. Was impregnated with iron chloride (III) at a concentration of 30%, and then the pyrrole solution was brought into contact with the evaporated pyrrole monomer gas to cause polymerization to obtain a cleaning material in which the entire cotton fiber was coated with polypyrrole. With this cleaning material, optical fiber splicer (TYPE-85, manufactured by Sumitomo Electric Industries, Ltd.)
When the V groove for setting the optical fiber core, the bottom of the fiber clamp for suppressing the optical fiber, and the mirror were cleaned, it was possible to clean them without adhering dust in the atmosphere.

[0023]

According to the cleaning material of the present invention, a conductive member is fixed to at least one end of a rod-shaped body and charge can be removed by corona discharge, so that the object to be cleaned can be cleaned without being charged. Further, since the charge can be removed by corona discharge, it is not necessary to use a liquid such as alcohol, so that no liquid residue is generated.

[Brief description of drawings]

FIG. 1 is an example of a cross-sectional shape of a composite fiber capable of being made into fine fibers according to the present invention.

[FIG. 2] Another example of the cross-sectional shape of the conjugate fiber capable of being made into fine fibers of the present invention

FIG. 3 (a) Another example of cross-sectional shape of the fine fiber-convertible conjugate fiber of the present invention (b) Another example of cross-sectional shape of the fine fiber-convertible conjugate fiber of the present invention

[Explanation of symbols]

 A one component B other component

Claims (2)

[Claims] 1. A cleaning material, wherein a conductive member is fixed to at least one end of a rod-shaped body. 2. The cleaning material according to claim 1, wherein the conductive member is coated with an electron conjugated polymer and has conductivity.