JPH0931743A - Cleaner for small part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleaner for a small part capable of readily removing fine dirt attached to the small part, readily renewing a cleaning part and reusable without generating fiber waste by burying in a top end of a cylindrical, etc., handling part so as a top end of a specific fiber bundle to be projected. SOLUTION: A top end of a fiber bundle 4 of synthetic fiber filament yarn such as polyethylene terephthalate having modified cross section and <=0.5de single fiber denier is pushed into a top end of a cylindrical or a columnar handling part 3 to be projected. Preferably, the portion other than the top part of the fiber bundle 4 is covered with a covering body made of a synthetic resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides details such as a contact hole in an object, a tip of a connection terminal or a fine gap such as a fine groove which cannot be cleaned by a conventional cleaning tool because a cleaning tool cannot enter. The present invention relates to a cleaning tool for details used when cleaning.

[0002]

2. Description of the Related Art In recent years, the need for cleanliness and precision has been increasing, and in the manufacturing process of precision devices such as IC circuit boards and optical fiber connectors, and in home maintenance such as cleaning of magnetic head portions of audio devices, for example. It is also desired to maintain performance and ensure hygiene conditions. Conventionally, precision parts have been cleaned by, for example, wiping with a cotton swab wound around a core rod or impregnating a cotton swab with a solvent to remove dirt.

With a cotton swab, since the diameter of the cotton itself is large, the contact area with respect to the cleaning surface is small, and the gap between the cottons is large, so that it is difficult to capture dirt on the micron order of precision equipment, etc., so the cleaning effect is low. It is difficult to reliably and efficiently wipe off dirt. In addition, when the inner part is cleaned by turning or inserting / removing or applying a force to a cotton swab, since cotton itself is a short fiber, fiber waste remains on the cleaning surface, and there is a drawback that it becomes a new dust.

[0004] In order to prevent a defect that fiber waste remains on the cleaning surface, a cotton portion may be used with a solvent contained therein. However, the solvent contained may remain on the cleaning surface, deteriorating the performance or deteriorating the object. In order to prevent the solvent from remaining on the cleaning surface, a method of blowing away the solvent and fiber scraps with a gas after cleaning has been adopted. These methods may cause problems in terms of solvent management and environmental pollution by solvents and gases.

In order to solve these problems, in Japanese Utility Model Laid-Open No. 3-117208, an elastic body is provided around a core rod, and the elastic body is covered with a cloth or knitting string on a cylinder woven with ultrafine fibers. , Those that are bent or twisted have been proposed. It is impossible to weave or knit a cloth or braid with individual ultrafine fibers.In reality, the cloth or braid is woven or knitted with a bundle of ultrafine fibers in which fine fibers are aligned. It constitutes a woven structure and a knitted structure. Therefore, since the cleaning with this cleaning tool is performed on the side surface of the ultrafine fiber bundle, the number of fibers contacting the cleaning surface is only a part of the actual number of fibers constituting the fabric. Moreover, since the side surface is uneven due to the structure of the weave and the braid, there is a high possibility that the unpolished residue will appear. In addition, a cleaning tool in which a woven fabric or braid is wrapped around a core rod and bent or twisted does not have an acute angle at the tip cleaning part and the corners of the target object can not be polished, or it is difficult to handle more detailed cleaning. There's a problem.

Further, all of these cleaning tools, once cleaned, cannot be reused and are discarded.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to solve such problems, and it is an object of the present invention to remove fine dirt adhering to the details by a simple method without using a chemical substance such as a solvent. It is an object of the present invention to provide a cleaning tool that enables cleaning, can cope with more detailed cleaning, and can easily renew and easily reuse the cleaning unit.

[0008]

The present invention achieves the above object and has the following structure. That is, according to the present invention, the cross-section is a modified cross-section, and the tip of the fiber bundle of the synthetic fiber filament yarn having a single yarn fineness of 0.5 denier or less is embedded in the tip of the cylindrical or cylindrical gripping portion. A cleaning tool for details, a cleaning tool for details, which has a modified cross section and is covered with a synthetic resin coating except the tip of the fiber bundle of the synthetic fiber filament yarn having a single yarn fineness of 0.5 denier or less, The above-mentioned cleaning tool for details, in which a part of the synthetic fiber filament yarns forming the fiber bundle at the tip portion is bent along the circumference, has a modified cross section, and has a single yarn fineness of 0.
A synthetic fiber filament yarn having a denier of 5 denier or less is bent, and the bundled fiber bundle is embedded in the tip of a cylindrical or columnar gripping portion so that a bent portion located at one end side of the fiber bundle projects. The cleaning tool for details is a cleaning tool for details, in which the synthetic fiber filament thread is a filament thread obtained by splitting composite spun fiber of synthetic resin having different characteristics.

Hereinafter, the present invention will be described in detail. The synthetic fiber filament yarn used in the present invention is a long fiber filament yarn obtained by spinning a synthetic resin such as nylon or polyester. This synthetic fiber filament yarn may be obtained by ordinary spinning, but synthetic fiber with different characteristics is subjected to composite spinning and splitting treatment to obtain a finer fiber or an irregular cross section. It is preferable because the fibers can be more suitable for the intended use. In this case, the combination of synthetic resins having different characteristics can be selected from synthetic resins having different solubility or heat shrinkability for drugs, or synthetic resins having poor adhesiveness to each other It may be a synthetic resin. For example, in order to obtain a composite fiber having a fiber cross-sectional shape as shown in FIG. 1, composite spinning is carried out using an alkali-poorly soluble polymer 1 and an alkali-soluble polymer 2 and alkali-treated to remove the alkali-soluble polymer 2. Then, filament yarn that has been split can be used. Alkali sparingly soluble polymer 1
Polyethylene terephthalate, polyamide or the like can be used as the alkali-soluble polymer 2. As the alkali-soluble polymer 2, for example, an isophthalic acid component having a sulfonic acid group as described in JP-A-1-209825 and an ethylene oxide adduct of bisphenols can be used. Examples thereof include polyethylene terephthalate-based copolyesters obtained by copolymerizing and. Fibers obtained by arranging synthetic resins having poor adhesiveness to each other in a shape as shown in FIG. 1 and subjecting them to composite spinning are split in a stretching step or the like in a subsequent step and are preferably used in the present invention.

The single fiber fineness of the synthetic fiber filament yarn used in the present invention is 0.5 denier or less in order to reduce the gap between the fibers and facilitate the capture of dirt. Further, it is preferable that a synthetic resin having different characteristics is subjected to composite spinning and splitting treatment so as to be 0.2 denier or less. Fineness is 0.
If it exceeds 5 denier, the cross-sectional area of the fiber becomes large and the contact area for dirt becomes small, and the gap between the fibers becomes large, making it difficult to catch dirt, and as a result, dirt can be reliably removed. become unable.

The cross section of the synthetic fiber filament yarn is
A modified cross section. This is because the acute-angled portion of the fiber cross section has a shape to scrape off dirt, which is effective for removing dirt more reliably. The cross-sectional shape is wedge-shaped, Y
A shape having an acute angle such as a shape or a T shape is preferable. In order to obtain a filament yarn having a modified cross section with a small single yarn fineness, it is more suitable to use a method in which a synthetic resin having different characteristics as described above is subjected to composite spinning and splitting treatment. For example, as shown in FIG. 1, a wedge-shaped cross section is spun in a form in which it is bonded with an alkali-soluble polymer and treated with alkali to form a wedge-shaped cross section, which is more suitable for use.

According to the cleaning tool for details of the present invention, the fiber bundle in which the above synthetic fiber filament yarns are bundled is embedded in the tip of the cylindrical or cylindrical gripping portion so that the tip portion projects as the cleaning portion. Or by coating with a synthetic resin.

2 to 4 show an example of a cleaning tool for details of the present invention in which a fiber bundle is embedded in the tip of a cylindrical or cylindrical grip portion. In the example shown in FIG. 2, the embedded portion 5 of the fiber bundle 4 is fixed by a synthetic resin or the like and is converged by a tape so as to match the inner diameter of the cylindrical grasped portion 3, and the embedded portion 5 is attached to the tip of the cylindrical grasped portion 3. The fiber bundle 4 having a length that is easy to work is projected from the tip of the grip portion 3 to be a cleaning portion, which is the cleaning tool of the present invention. In the example shown in FIG. 3, the embedded portion 5 of the fiber bundle 4 is fixed with a synthetic resin or the like and is converged with tape according to the inner diameter of the concave portion 7 at the tip of the cylindrical grip portion 6, and the embedded portion 5 is placed in the concave portion 7. The cleaning tool of the present invention is fixed by embedding, and the fiber bundle 4 having a length that is easy to work is projected from the tip of the cylindrical grip portion 6 to form a cleaning portion. In this case, the material of the cylindrical grip portion 3 or the cylindrical grip portion 6 may be any material having rigidity such as wood, metal or synthetic resin, or one having elasticity. Further, as shown in FIG. 4, if the cleaning portion is formed such that a part of the synthetic fiber filament yarn is bent along the peripheral edge of the tip end of the cylindrical grip portion 6, the side surface of the fiber can be used for cleaning. Like In these cases, the embedded portion may be adhered to the cylindrical grip portion 3 or the cylindrical grip portion 6 with an adhesive or the like so that the fiber bundle does not come off during the work, but it is simply a fitting type. If you leave it, you can also replace only the fiber bundle for cleaning.

FIG. 5 shows an example of a cleaning tool for details of the present invention in which the fiber bundle 8 in which synthetic fiber filament yarns are bundled is covered with a synthetic resin coating 9, and the coating 9 is used as a grip portion. This cleaning tool can be manufactured by cutting a resin-coated fiber bundle made by a resin-coating device 10 as shown in FIG. 7 into a length that is easy to work and removing the coating at the tip to obtain a cleaning section. it can. A resin coating device 10 shown in FIG. 7 continuously coats a fiber bundle 8 supplied from a yarn feeder 13 by extruding a raw material made of a thermoplastic resin in a molten state from a nozzle 12 by an extrusion screw 11 and thereafter. It is adapted to be wound up on the winding machine 15 through the cooler 14.

In the cleaning tool for details shown in FIG. 5, the fiber bundle 8 of the cleaning portion projecting from the cover 9 is entirely linear, but as shown in FIG. 6, a part of the synthetic fiber filament yarn is covered with the cover 9. It can also be formed to bend along the peripheral edge of the tip. In the case of these cleaning tools, once used for cleaning, if the cleaning part becomes dirty, the part protruding from the resin coating is cut and the next coating resin is removed, and the cleaning performance is the same as that of a completely new product. Can be replaced with a cleaning unit.
Synthetic resins that can be used for this coating include vinyl chloride resin, polyethylene resin, polypropylene resin,
Thermoplastic resins such as polyester resins and polyamide resins can be mentioned. When cleaning, the synthetic resin coating is preferably as thin as possible, provided that the cleaning tool itself is not pressed or pressed against the cleaning object to bend or break.

The example of the cleaning tool for details of the present invention described above is as follows.
Although a fiber bundle formed by bundling a large number of independent synthetic fiber filament yarns is used, as shown in FIG. 8 and subsequent figures, a large number of synthetic fiber filament yarns are folded and bundled into a fiber bundle. It is also possible to embed it at the tip of the cylindrical or cylindrical gripping portion so that the bent portion located on one end side of the bundle projects.

The cleaning tool for details shown in FIG. 8 uses a fiber bundle 17 in which a large number of synthetic fiber filament yarns are each folded in two and bundled so that the bent portions 16 are aligned. The bent portion 16 is embedded in the concave portion 7 at the tip of the cylindrical grip portion 6 so as to project. With this configuration, even if the end of the bent portion 16 of the fiber bundle 17 is cut by friction with the object to be cleaned during cleaning as shown in FIG. 9, the root of the fiber bundle 17 is the recess 7 of the grip portion 6. Since it is embedded and fixed in, the fibers do not immediately become free and become dust. As a method of forming a fiber bundle 17 formed by bundling the folded synthetic fiber filament yarns and making a cleaning tool for details, for example, as shown in FIG. 10, the synthetic fiber filament yarns 18 are formed into a ring shape, and Bundling and fixing one end by embedding one end in the concave portion 7 of the grip portion 6, or as shown in FIG. 11, make the synthetic fiber filament yarn 19 into a ring shape having a size about twice as large as a necessary size ring. After forming, then as shown in FIG. 12, the central part of the ring is bundled and cut into two fiber bundles 1
7, 17 and then embedding and fixing the cut-side ends of the fiber bundle 17 in the recessed portion 7 of the grip portion 6 in a bundled state, or by simply folding the fiber bundle in two so that both ends are aligned and gripped There is a method of embedding and fixing in a recess of the part.

In the cleaning tool for details of the present invention, the thickness of the fiber bundle in which the synthetic fiber filament yarns are bundled can be set to a thickness suitable for the application, and an extremely thin cleaning tool to a considerably thick cleaning tool can be arbitrarily obtained. You can

In the cleaning tool for details of the present invention, by using the synthetic fiber filament yarn for cleaning, new dust due to fiber dust does not adhere to the cleaning surface and the thickness can be freely set. Therefore, it is possible to deal with more detailed cleaning. Further, by setting the single yarn fineness of the synthetic fiber filament yarn to be 0.5 denier or less, or by splitting the composite spun fiber to have the single yarn fineness of 0.5 denier or less, the cross-sectional area of the filament yarn is Due to the small size, dirt such as an oil film can be wiped off from the root, and since it is held between fine fibers, the dirt can be removed reliably and easily. Further, if the fiber cross section has a modified cross section, the number of sharp corners increases, so that the dirt on the cleaning surface is scraped off from the root, and more reliable and quick cleaning can be performed.

Further, when a part of the synthetic fiber filament yarn of the fiber bundle is folded back along the peripheral edge of the tip of the grip portion, the wall surfaces such as holes can be cleaned at the same time by the inserting / pulling operation.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. The cleaning tool thus obtained was evaluated by the following method.

Crayon dust is applied to the ferrule end surface and the sleeve side surface on one side of the optical connector, and then attached to the connector. After cleaning by inserting a cleaning tool from the opposite side, the surface to be cleaned is observed for cleanliness and The condition of the cleaned surface was evaluated.

Embodiment 1 Polyethylene terephthalate as an alkali sparingly soluble polymer and a copolyester obtained by copolymerizing 2.5 mol% of 5-sodium sulfoisophthalic acid as an alkali easily soluble polyester are arranged so as to have a cross section shown in FIG. 8 split fiber 7 spun with a polymer weight ratio of 72:28
Nine 0-denier / 48 filament yarns were plied with a ring twisting machine at 120 t / m in the S direction to obtain nine lower twist yarns. Next, the 9 lower twisted yarns were first twisted at 100 t / m in the Z direction and then wound into a ridge shape.

This drip was dipped in a dyeing pot containing a sodium hydroxide aqueous solution having a concentration of 20 g / liter and a bath ratio of 1:40, boiled for 30 minutes to remove the alkali-soluble polyester, washed with neutralized water, and dried. An ultrafine filament yarn fiber bundle having a single fineness of 0.13 denier and a wedge-shaped cross section and a total fineness of 4050 denier was obtained.

Using the resin coating apparatus shown in FIG. 7, the obtained ultrafine filament yarn fiber bundle was coated with vinyl chloride resin to a diameter of 0.8 mm, and then cut into a length of 100 mm, and the tip portion was further cut. The resin coating of 10 mm is stripped, and the ultrafine filament yarn fiber bundle is 10 mm as the cleaning portion.
The cleaning tool for details of the present invention having the shape shown in FIG.

Embodiment 2 In the cleaning tool obtained in accordance with Embodiment 1, about 20% of the filament yarn outside the fiber bundle at the tip portion where the vinyl chloride resin coating is stripped is bent along the periphery of the resin. The cleaning tool for details of the present invention having the shape shown in FIG.

Embodiment 3 After obtaining an ultrafine filament yarn fiber bundle in the same manner as in Embodiment 1, a tip of 5 mm on one side of the fiber bundle is hardened with vinyl chloride resin and cut to a length of 20 mm, and polyethylene is used. Outer diameter 0.9mm, hollow part inner diameter 0.7m
A cleaning tool for details of the present invention having a shape shown in FIG. 2 in which an ultrafine filament yarn fiber bundle was exposed by 5 mm as a cleaning portion was obtained by inserting and adhering into a hollow portion of a cylinder having a length of m and a length of 40 mm.

Fourth Embodiment In the cleaning tool obtained by the method of the third embodiment, about 20% of the outer fibers of the fiber bundle 5 mm extending from the cylinder are bent along the circumference of the cylinder to obtain the shape shown in FIG. The cleaning tool for details of the present invention was obtained.

Fifth Embodiment 70-denier / 4 split split yarn used in the first embodiment
Eight filament filament yarns in the S direction 70t /
5 ply-twisted yarns were obtained by ply twisting at m. Next, this lower twisted yarn 5
The book was twisted in the Z direction at 40 t / m and then wound into a fold.

This puddle was dipped in a dyeing pot containing a sodium hydroxide aqueous solution having a concentration of 20 g / liter and a bath ratio of 1:40, boiled for 30 minutes to remove the alkali-soluble polyester, washed with neutralized water, and dried. An ultrafine filament yarn fiber bundle having a single yarn fineness of 0.13 denier and a wedge-shaped cross section and a total fineness of 2000 denier was obtained.

This fiber bundle was cut into a length of 40 mm, folded in two so that both ends were aligned, and the tip of the combined side was solidified with vinyl chloride resin. The cleaning tool for details of the present invention was obtained by inserting and adhering the fiber bundle in the hollow portion into the cleaning portion, and the fiber bundle of ultrafine filament yarn was exposed as 5 mm.

When the optical connector was cleaned with the cleaning tool obtained in any of the first to fifth embodiments, all the applied crayons were wiped off in a short time in any cleaning tool, showing good cleanliness and good cleaning performance. The condition was good with no scratches. Further, by using Embodiments 2 and 4 in which a part of the synthetic fiber is bent along the circumference, not only the end surface of the hole of the connector but also the inner surface of the sleeve can be cleaned cleanly.

Comparative Example 1 Using polyester 50 denier / 36 filament yarn (single yarn fineness 1.4 denier), these 9 yarns were twisted in the S direction at 120 T / M in the S direction and 9 lower twist yarns were obtained. After this was obtained, this 9 twisted yarns were twisted at 100T / M in the Z direction to obtain a fiber bundle having a total fineness of 4050 denier. Using the resin coating device shown in FIG. 7, the fiber bundle was coated with vinyl chloride resin to a diameter of 0.8 mm, and then a length of 1
It was cut to a size of 00 mm, and further, a resin coating of 10 mm at the tip portion was stripped to obtain a cleaning tool for details of the present invention having a shape shown in FIG.

When the end surface and the side surface of the ferrule of the optical connector were cleaned, no fluff remained on the cleaned surface, but some applied crayons remained.

Comparative Example 2 Cotton having an average fiber length of 40 mm and an average fineness of 1 denier was fixed to a polyethylene resin rod having a diameter of 0.9 mm and a length of 40 mm with an adhesive to obtain a cleaning tool.

The optical connector was cleaned with the obtained cleaning tool, but the applied crayon remained. In addition, many fluffs of cotton thread remained on the surface to be cleaned, which resulted in connection failure during ferrule connection.

[0037]

As described above, according to the cleaning tool for details of the present invention, since no fiber waste is generated and the cleaning surface can be cleaned easily and surely, no solvent is necessary and there is concern about environmental pollution. It is also advantageous in that it does not exist. Further, it is possible to obtain a cleaning tool having a thickness suitable for the intended use, and it is possible to provide a cleaning tool adapted to an extremely narrow and fine portion.

Further, in the cleaning tool coated with the synthetic resin coating, when the cleaning ability is lowered, the resin coating is stripped to expose a new fiber bundle, so that the initial cleaning ability can be obtained again. It is more cost effective than conventional products.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a conjugate fiber that can be used in the present invention.

FIG. 2 is a sectional view showing a first example of a cleaning tool for details of the present invention.

FIG. 3 is a cross-sectional view showing a second example of the cleaning tool for details of the present invention.

FIG. 4 is a cross-sectional view showing a third example of the cleaning tool for details of the present invention.

FIG. 5 is a cross-sectional view showing a fourth example of the cleaning tool for details of the present invention.

FIG. 6 is a sectional view showing a fifth example of the cleaning tool for details of the present invention.

FIG. 7 is a partially cutaway explanatory view of a resin coating device for manufacturing the cleaning tool for details of the present invention.

FIG. 8 is a sectional view showing a sixth example of the cleaning tool for details of the present invention.

FIG. 9 is a cross-sectional view showing a state in which the filament yarn of the cleaning tool for details of the sixth example of the present invention is cut.

FIG. 10 is a schematic view showing an example of a fiber bundle of the cleaning tool for details of the present invention.

FIG. 11 is a schematic view showing another method of making a fiber bundle of the cleaning tool for details of the present invention.

FIG. 12 is a schematic view showing a state in which another fiber bundle of the cleaning tool for details of the present invention is cut at the central portion.

[Explanation of symbols]

 1 Alkali-Slightly Soluble Polymer 2 Alkali-Soluble Polymer 3 Cylinder 4 Fiber Bundle 5 Embedded Section 6 Cylinder 7 Recessed 8 Fiber Bundle 9 Cover 10 Resin Coating Device 16 Bent 17 Fiber Bundle 18, 19 Synthetic Fiber Filament Yarn

[Procedure amendment]

[Submission date] October 13, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

Hereinafter, the present invention will be described in detail. The synthetic fiber filament yarn used in the present invention is a long fiber filament yarn obtained by spinning a synthetic resin such as nylon or polyester. This synthetic fiber filament yarn may be obtained by ordinary spinning, but synthetic fiber with different characteristics is subjected to composite spinning and splitting treatment to obtain a finer fiber or an irregular cross section. It is preferable because the fibers can be more suitable for the intended use. In this case, the combination of synthetic resins having different characteristics can be selected from synthetic resins having different solubility or heat shrinkability for drugs, or synthetic resins having poor adhesiveness to each other It may be a synthetic resin. For example, in order to obtain a composite fiber having a fiber cross-sectional shape as shown in FIG. 1, composite spinning is carried out using an alkali-poorly soluble polymer 1 and an alkali-soluble polymer 2 and alkali-treated to remove the alkali-soluble polymer 2. Then, filament yarn that has been split can be used. Alkali sparingly soluble polymer 1
Polyethylene terephthalate, polyamide or the like can be used as the alkali-soluble polymer 2. As the alkali-soluble polymer 2, for example, an isophthalic acid component having a sulfonic acid group as described in JP-A-4-209825 and an ethylene oxide adduct of bisphenols can be used. Examples thereof include polyethylene terephthalate-based copolyesters obtained by copolymerizing and. Fibers obtained by arranging synthetic resins having poor adhesiveness to each other in a shape as shown in FIG. 1 and subjecting them to composite spinning are split in a stretching step or the like in a subsequent step and are preferably used in the present invention.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location D01F 8/04 D01F 8/04 Z D02G 3/36 D02G 3/36 3/44 3/44 (72 ) Inventor Kazutoshi Toya 4-3, Kutaro-cho, Chuo-ku, Osaka, Osaka Unitika Sales Co., Ltd. (72) Inami Atsumi 4-3, Kutaro-cho, Chuo-ku, Osaka, Osaka Unitika Sales Shares In-company (72) Haruhiko Kawamoto, 23 Uji Kozakura, Uji-shi, Kyoto Prefecture Unitika Central Co., Ltd. Central Research Institute (72) Inventor, Yasuo Kishida 23, Uji Kozakura, Uji-shi, Kyoto Unitika Central Company (72) Invention Person Iwano ▲ Shin ▼ ichi 1-16 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Ryo Nagase 1-cho, Uchisaiwaicho, Chiyoda-ku, Tokyo No. 1-6 Nihon Telegraph and Telephone Corporation (72) Inventor Masaru Kobayashi 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Inventor Hiromasa Okamura Megurohoncho, Meguro-ku, Tokyo 6-18-12 Honda Tsushin Kogyo Co., Ltd. (72) Inventor Toshiaki Nakano 6-18-12 Meguro Honmachi, Meguro-ku, Tokyo Honda Tsushin Kogyo Co., Ltd.

Claims (5)

[Claims] 1. A cross-section is a modified cross-section, and the end of the fiber bundle of synthetic fiber filament yarn having a single yarn fineness of 0.5 denier or less is embedded in the tip of a cylindrical or cylindrical gripping portion so as to project. Cleaning tool for details characterized by being present. 2. A detail characterized in that the cross section is a modified cross section, and a portion other than the tip end of the fiber bundle of the synthetic fiber filament yarn having a single yarn fineness of 0.5 denier or less is covered with a synthetic resin coating. Cleaning tool. 3. The cleaning tool for details according to claim 1 or 2, wherein a part of the synthetic fiber filament yarn constituting the fiber bundle at the tip portion is bent along the circumference. 4. A synthetic fiber filament yarn having a deformed cross section and a single yarn fineness of 0.5 denier or less is folded,
A cleaning tool for details, wherein the bundled fiber bundle is embedded in the tip of a cylindrical or columnar gripping portion such that a bent portion located at one end side of the fiber bundle projects. 5. The cleaning tool for details according to claim 1, wherein the synthetic fiber filament yarn is a filament yarn obtained by splitting composite spun fibers of synthetic resins having different characteristics.