JPH10121349A - Wiping cloth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a wiping cloth having a high drapeability and excellent wiping properties by forming thermally fused parts capable of manifesting a flexural rigidity value within a specific range on the whole edge periphery of a cut piece of a woven fabric composed of a polyester-based ultrafine multifilament yarn. SOLUTION: This wiping cloth 1 is obtained by forming a woven or a knitted fabric having 70-220g/m<2> METSUKE (mass per unit area) and 0.1-0.7mm thickness from a polyester-based ultrafine multifilament yarn having <=2de, preferably <=1de single filament size, cutting the resultant woven or knitted fabric to prescribed dimensions and forming thermally fused parts 3 having 3-10mm width and 0.05-2gf.cm<2> /cm flexural frigidity value [according to a KAWABATA'S EVALUATION SYSTEM (KES) method] over whole edge periphery of the cut piece 2 in order to prevent self dusting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping cloth, and more particularly to a wiping cloth having an excellent drape property while providing a heat-sealed portion at an edge portion for preventing dust generation.

[0002]

2. Description of the Related Art Precision products such as semiconductors are produced in a clean room because the presence or absence of dust or the like on the surface has a significant effect on performance, and work is performed to wipe off dirt on the product surface. Have been done. Although many wiping cloths are used for this wiping operation, the wiping cloths themselves sometimes generate dust, and the wiping performance cannot be sufficiently improved.

[0003] Examination of the location where the wiping cloth itself generates dust as described above reveals that a large number of fiber cutting ends are generated from the edge of the cut piece cut from the woven or knitted fabric. Conventionally, as a technique for suppressing the generation of dust from such a cutting edge portion, Japanese Patent Laid-Open No. 2-45017 is disclosed.
Japanese Patent Application Laid-Open Publication No. H11-163873 proposes a technique in which the edges of fibers are heated and fused to have a fixed width so that the cutting ends of the fibers are fused and bound.

However, the fibers of the wiping cloth proposed here have a single yarn fineness equivalent to that of fibers used for ordinary garments. , And as a result, the heat-sealed portion had to be in a state of being stretched into a film. However, when the edge of the wiping cloth is in a state of large bending stiffness with ruggedness, the wiping cloth cannot be well adapted to the surface to be treated during the wiping operation, and the wiping effect is reduced. There was a problem.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a wiping cloth having excellent drapability while providing a heat-sealed portion at an edge portion.

[0006]

The wiping cloth of the present invention, which achieves the above object, has a basis weight of from 70 to 220 g / m2 from an ultrafine multifilament yarn having a single yarn fineness of 2 denier or less.
m ² , consisting of cut pieces cut from a woven or knitted fabric formed to a thickness of 0.1 to 0.7 mm, and 3 to 10
It is characterized by having a heat-sealed portion having a width of mm.

As described above, the wiping cloth has a single yarn fineness of 2
Made of ultra-fine fiber multifilament yarns of denier or less, it retains high drapeability by fusing fibers to each other without heating the heat-sealed part of the edge to a high temperature unlike a conventional wiping cloth. Wiping properties can be maintained. Further, since the woven or knitted piece itself is composed of a microfilament multifilament yarn having a single-fiber fineness of 2 denier or less, it is possible to exhibit excellent dirt wiping performance as compared with a fiber using fineness of normal fineness.

[0008]

1 and 2 show a wiping cloth according to an embodiment of the present invention. In the drawing, reference numeral 1 denotes a wiping cloth, which is a cut piece 2 cut out from a woven or knitted fabric woven or knitted from a microfilament multifilament yarn having a single yarn fineness of 2 deniers or less, and having a fixed width on all four edges thereof. Is formed.

The heat-sealing portion 3 prevents the dust from the edge by heat-sealing the cutting ends of the ultrafine fiber multifilament yarn at the edge to each other. In addition, since the ultrafine fibers having a single yarn fineness of 2 denier or less are fused together, the fibers can be fused without excessive heating, so that the cutting end can be restrained without forming a film. Therefore, the drape property of the woven or knitted fabric can be maintained, and the original wiping property is not reduced.

[0010] The width of the heat-sealed portion 3 is 3 to 10 mm,
Preferably it is 4 to 8 mm. If it is smaller than 3 mm, the effect of suppressing dust generation by the heat-sealed portion cannot be obtained, and if it is larger than 10 mm, the drapability will decrease. The heat-sealed portion 3 formed on the wiping cloth 3 of the present invention has a bending rigidity of 0.05 to 0.2 gf.cm according to KES (KAWABATA'S EVALUATION SYSTEM) by being configured as described above. It can be in the range of ² / cm. Flexural rigidity of KES is 0.2 gf.cm
^When it is not more than ² / cm, the original excellent drapability of the woven or knitted fabric of the ultrafine fiber multifilament yarn can be maintained, and the excellent wiping property can be exhibited. But,
If it is lower than 0.05 gf.cm ² / cm, the restraining force of the heat-sealed portion becomes insufficient, and the effect of suppressing the dust generation effect is reduced.

The wiping cloth 1 according to the present invention is made of an ultra-fine fiber multifilament yarn having a single yarn fineness of 2 denier or less, so that an excellent dirt wiping according to the principle shown in FIGS. Has take performance.
As shown in FIG. 3A, the multifilament yarn F in which a large number of ultrafine fibers f are bundled has an infinite number of gaps G formed therein. When the surface to be treated is wiped by the wiping cloth 1 formed from the woven or knitted fabric of the multifilament yarn F, the wiped oil film and dirt D move to the gap G inside the multifilament yarn F by capillary action, and there. It becomes trapped. Therefore,
It can be wiped off without leaving any dirt on the surface to be treated,
In addition, since no oil film or dirt D is left on the surface of the wiping cloth 1, the wiping cloth 1 can be wiped repeatedly.

Further, the wiping cloth 1 has substantially no dust since the ultrafine multifilament yarn is a long fiber without fluffing and does not generate dust. The woven or knitted fabric of the wiping cloth 1 has an ultrafine fiber multifilament yarn having a single yarn fineness of 2 denier or less, a basis weight of 70 to 220 g / m ² , a thickness of 0.1 to 0.7 mm, and more preferably 0.2 to 0.5 mm. Is woven or knitted. If the basis weight is smaller than 70 g / m ² and the thickness is smaller than 0.1 mm, it becomes difficult to exhibit excellent wiping performance by using the ultrafine fiber multifilament yarn. In addition, the basis weight is 220 g / m ²
If the thickness is larger than 0.7 mm and the thickness is larger than 0.7 mm, the larger these values are, the more easily dust is generated. Therefore, it is difficult to maintain low dust generation even if the heat-sealed portion 3 is provided.

In the present invention, the polymer used for the ultrafine fiber multifilament yarn is not particularly limited, and any polymer can be used as long as it can be formed by a normal spinning method. it can. For example, polyester, polyamide, polyvinyl alcohol, polyolefin and the like can be exemplified. Among them, polyester is a particularly preferable material.

In the wiping cloth of the present invention, conductive fibers may be mixed into the woven or knitted fabric, and the mixing of the conductive fibers can give the wiping cloth an antistatic property.

[0015]

As described above, since the wiping cloth of the present invention is made of an ultrafine multifilament yarn having a single yarn fineness of 2 denier or less, the fibers can be connected to each other without heating the heat-sealed portion of the edge to a high temperature. It can be fused and can maintain high drapability and maintain excellent wiping properties. Furthermore, since the woven or knitted piece itself is composed of a microfilament multifilament yarn having a single-fiber fineness of 2 deniers or less, it is possible to exhibit excellent dirt wiping performance as compared with a fiber using fineness of normal fineness.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a wiping cloth according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an explanatory diagram showing an operation of the wiping cloth of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiping cloth 2 Cutting piece 3 Heat fusion part

Claims (3)

[Claims] 1. A cut piece cut from a woven or knitted fabric formed from an ultrafine multifilament yarn having a single yarn fineness of 2 denier or less and having a basis weight of 70 to 220 g / m ² and a thickness of 0.1 to 0.7 mm. A wiping cloth having a heat-sealed portion with a width of 3 to 10 mm all around the edge of the cut piece. 2. The multi-filament ultrafine fiber yarn is made of polyester having a single yarn fineness of 1 denier or less.
The wiping cloth described in. 3. The wiping cloth according to claim 1, wherein the flexural rigidity of the heat-sealed portion is 0.05 to 0.2 gf.cm ² / cm as evaluated by KES.