JPH11276396A - Wiping tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiping tape excellent in cleaning effect after wiping, reduced in dust generation and capable of being suitably used for wiping off the surface stains of an electronic equipment component or the like such as a magnetic disk and a magnetic tape. SOLUTION: This wiping tape is constituted of textile fabrics composed by using a knit-deknit-processed multi-filament crimped threads consisting of extra fine fibers as warp or/and weft. The ratio of the total fineness of the warp to that of the weft is defined as 2-10, thus the total fineness of the knit- deknit-processed multi-filament crimped threads consisting of the extra fine fibers is made larger to obtain the float structure of the extra fine fibers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping tape which is preferably used for wiping the surface of electronic parts such as a hard disk (magnetic disk) and a magnetic tape, and more particularly to a rotary drive. The present invention relates to a wiping tape which is preferably used for wiping off stains on electronic device parts and the like while being pulled and moved by a roller system.

[0002]

2. Description of the Related Art In the case of electronic equipment components such as hard disks and magnetic tapes, the presence or absence of dirt such as an oil film or dust on the surface thereof has a significant effect on performance. A process is provided so that the product can be cleaned.

Conventionally, as a wiping means in such a wiping step, for example, a wiping tape in which a cloth using ultrafine fibers as proposed in Japanese Utility Model Laid-Open No. 1-160959 is slit has been used. The wiping tape made of the cloth using ultrafine fibers has less residual wiping on the surface to be treated than the wiping tape made of fibers having a fineness, and thus can exhibit higher wiping performance.

However, in recent years, electronic devices such as hard disks have been required to have a higher degree of cleanliness after wiping in order to further improve their performance. For this reason, it is becoming difficult for conventional wiping tapes to sufficiently respond to the recent demands, even if the fabric is made of ultrafine fibers.

Japanese Patent Application Laid-Open No. 2-139449 proposes a wiping cloth in which the specific volume of a woven or knitted fabric composed of crimped yarns made of split fibers of polyester and polyamide is limited. However, this is a numerical value of the wiping performance in terms of absorption speed and amount of water and oil, and sufficient wiping performance cannot be obtained as a wiping material in a manufacturing process of an electronic information device that is actually used. . That is, in the case of wiping by a tape-shaped wiping cloth or mechanical movement of an object in a certain direction, unwiped parts cannot be avoided.

Further, a wiping cloth in which nap is added to a cloth made of ultrafine fibers of 0.5 denier or less is proposed in Japanese Patent Application Laid-Open No. Hei 4-263648, but is suitable for practical use in a clean room because of dust generation. Absent.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a wiping tape capable of improving the cleanliness after wiping more than before, and in particular, by using a knit denit yarn, By the convergence, the dirt stuck firmly to the surface to be wiped can be easily taken off, and the undulation can express a pattern with moderate unevenness on the fabric surface, and the pattern can be removed from other materials without dyeing An object of the present invention is to provide a wiping tape that can be easily distinguished from a wiping cloth.

Another object of the present invention is to provide a wiping tape which suppresses the generation of static electricity and has a high wiping property without dielectric breakdown and which is suitable for use in industries requiring cleanliness and which has a small amount of dust. Is to provide.

It is still another object of the present invention to provide a wiping tape having no wiping residue in applications requiring wiping in a certain direction, such as in a manufacturing process of electronic equipment.

[0010]

A wiping tape of the present invention is a woven fabric comprising a knit denit multifilament crimped yarn composed of ultrafine fibers having a single fiber fineness of 1 denier or less for at least one of a warp yarn or a weft yarn. And
A wiping tape characterized in that the ratio of the total fineness of the warp yarn to the weft yarn is 1.5 to 10 times.

[0011] The wiping tape of the present invention also includes the following preferred embodiments.

(1) A multifilament yarn containing an antistatic fiber is arranged on at least one of the warp yarn or the weft yarn.

(2) The weft yarn is a multi-filament crimped yarn, and the warp yarn is a multi-filament yarn containing an antistatic fiber.

(3) The total fineness of the multifilament crimped yarn is larger than the total fineness of the multifilament yarn containing the antistatic fiber.

(4) The woven structure is a floating structure of the multifilament crimped yarn and has undulations converged on the surface.

(5) The ratio of the number of warp yarns to the number of weft yarns per unit area is 1:10 or more.

(6) The number of the weft yarns is larger than the number of the warp yarns.

(7) The warp yarn has a single yarn fineness of 0.5 to 5.
It is made of synthetic fibers having a denier of 0 denier and a shrinkage of 10% or less in hot water at 100 ° C.

(8) The wiping tape has a thickness of 0.1 mm.
The tape is formed by heat cutting both edges into a tape having a width of 1 to 0.7 mm and a width of 3 to 1,800 mm, and has a tensile strength in the longitudinal direction of the tape of 40 to 70 kg / 5 c.
m, elongation is 20 to 50%.

(9) JIS B9923 6.2 (1.
The particles according to 1) above have a particle size of 5 μm or more at 20 particles / ft ³ · 100 cm ² or less, and the tape is hermetically packed in a resin film bag.

(10) The tape is wound around a core in a roll.

(11) Used for wiping stains of electronic equipment parts while being pulled and moved by a rotary drive roller system.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A warp yarn and / or a weft yarn constituting a wiping tape of the present invention is a multifilament crimp formed by knit denit processing of a multifilament yarn consisting of ultrafine fibers having a single fiber fineness of 1 denier or less. Yarn is used.

The multifilament yarn comprising the ultrafine fibers used in the present invention can be obtained by, for example, dissolving or decomposing and removing the sea component of a sea-island composite fiber comprising two different polymers. Of the splittable conjugate fibers composed of different polymers.

In the present invention, the polymer used for producing a multifilament yarn comprising ultrafine fibers is:
The polymer is not particularly limited, and any polymer can be used as long as it can be formed by a usual method. For example, polyester, polyamide, polyvinyl alcohol, polyolefin and the like can be exemplified, and among them, polyester is particularly preferably used.

In the present invention, the ultrafine fibers are fibers having a single fiber fineness of 1 denier or less, preferably 0.5 denier or less, more preferably 0.3 denier or less, and particularly preferably a single fiber fineness of 0.05 to less. Ultra fine fibers of 0.2 denier are used.

The smaller the single fiber fineness, the larger the surface area of the fiber, and the more small voids in the yarn or woven fabric.
Fine particles are captured in the small voids, and excellent wiping properties are exhibited. When the single fiber fineness is small, when the wiping tape comes into contact with the object, the fiber is easily buckled, and the dirt component is easily captured. For this buckling property, polyamide is more advantageous than polyester in terms of flexural rigidity.

A multifilament crimped yarn of knit denit is used for the multifilament yarn comprising the ultrafine fibers of the present invention. Knit de knit is a method of knitting multifilament yarns made of ultrafine fibers and temporarily forming a knitted fabric.
It is obtained by heat setting and releasing the yarn as necessary, and has a crimped structure in which multifilaments are converged and bent.

The woven fabric obtained by using the knit denitted multifilament crimped yarn is as follows:
The crimps with converged undulations have a structure that emerges on the surface, the convergence increases the bending stiffness, and it can wipe off firmly stuck fine particles, and the undulations have an appropriate uneven pattern on the fabric surface Wiping tape can be obtained. The pattern is important in that it can be identified as a wiping tape made of another material without dyeing.

The wiping tape of the present invention is constituted by using a knit denit multifilament crimped yarn as a warp yarn and / or a weft yarn. Used for yarn.

In the wiping tape of the present invention, other multifilament yarns can be arranged on the warp yarn and / or the weft yarn, preferably on the weft yarn, in addition to the knit denit multifilament crimped yarn. . The multifilament yarn used has a total fineness ratio of 1.5 to 1 with the multifilament crimped yarn composed of the ultrafine fibers.
It is optional except that it is 0 times, preferably 3 to 7 times. For example, a normal multifilament yarn having a single fiber fineness of 1 denier or more can be used. Specifically, a multifilament yarn having a single fiber fineness of preferably 0.5 to 5 denier and a total fineness of preferably 20 to 60 denier can be used.

In the present invention, the polymer used for producing the multifilament yarn is not particularly limited, and the polymer can be produced by the same ordinary method as that used for the multifilament yarn comprising the ultrafine fibers. Any possible polymer can be applied. For example, polyester, polyamide,
Examples thereof include polyvinyl alcohol and polyolefin, and among them, polyamide and polyester are particularly preferably used.

The multifilament yarn preferably contains antistatic fibers. As antistatic fiber,
For example, a block polyetheramide or a grafted polyetheramide (modified polyamide) containing a polyalkylene ether segment is mixed and spun with a polyamide or polyester, and the modified polyamide is mixed in the polyamide or polyester as dispersed particles elongated in the fiber axis direction. Filament, a filament made of a polymer containing a conductive substance such as carbon black or carbon fiber, particularly a filament made of a polymer containing a conductive substance in the core component of a core-sheath composite fiber, a metal filament, and the like. No.

One of the characteristics of the wiping tape of the present invention is that the ratio of the total fineness of the warp yarn and the weft yarn is 1.5 to 10 times,
Preferably, the total fineness of the multifilament yarn composed of ultrafine fibers is increased, and a knit denitized multifilament crimped yarn is used. This results in a woven fabric whose surface is substantially covered with microfibers.

In the present invention, the ratio of the number of filaments per unit area of the multifilament yarn constituting the warp yarn and the weft yarn is preferably set to 1:20 or more, and more preferably, the warp yarn is formed. 20 or more, more preferably 30 wefts per 1 filament
As described above, by setting the number to 50 or more, the effect of the present invention can be further promoted. When this ratio is small, the surface coverage by the weft thread is small, and wiping may be left in the wiping work in a certain direction. Here, the number of filaments per unit area is represented by the weave density of warp yarn or weft yarn (lines / inch).

In the wiping tape woven fabric of the present invention, a knit denit multifilament crimped yarn composed of ultrafine fibers is preferably inserted into a weft yarn in order to improve the wiping performance by moving the tape in a certain direction, that is, in the length direction of the tape. Is preferably used. By doing so, a multifilament crimped yarn used for the weft yarn has a woven fabric structure in which a large amount thereof floats on the woven fabric surface. In this case, the above-mentioned multifilament yarn having a single yarn fineness of 0.5 to 5 denier is preferably used as the warp yarn. This warp yarn is useful for stabilizing the form of the woven fabric and suppresses elongation of the woven fabric in the warp direction. Further, it is preferable that the yarn has a small dimensional change when subjected to a heat history from the greige machine to the finished product, and has a shrinkage of 10% or less, more preferably 6% or less, in a hot water treatment at 100 ° C. If the shrinkage is too large, the wiping tape is deformed by the tension applied during the wiping operation, and the wiping tape tends not to exhibit sufficient wiping performance. As a means for stabilizing the dimensions, heat treatment and fixing in the finishing step can be used separately.

In this case, the weave structure may be any of plain weave, twill weave and satin weave. However, in order to make the floating structure of the weft more effective, one weave such as satin weave emerges on the surface of the fabric. It is preferably a tissue.

According to an embodiment of the present invention, a multifilament crimped yarn composed of ultrafine fibers mainly emerges on the woven fabric surface, and another multifilament yarn such as an antistatic fiber is present inside the woven fabric. be able to.

According to the present invention, the multifilament yarns made of knit denit ultrafine crimped fibers emerging from the surface of the woven fabric constituting the wiping tape remove strong dirt such as an oil film on the surface. Since it has a function of sucking into countless voids inside the multifilament crimped yarn by capillary action, it can be wiped away without leaving any dirt on the surface to be treated. Further, by disposing the antistatic fiber on one side, the generation of static electricity can be suppressed and the amount of dust generation can be reduced.

The wiping tape of the present invention has a thickness of 0.1
A woven fabric of 織物 0.7 mm can be produced by heat cutting both edges into a tape having a width of 3-1800 mm. And, the tensile strength in the longitudinal direction of the wiping tape is 40 to 70 kg / 5 cm, and the elongation is 20 to 50.
%.

The tape with both edges cut as described above has a problem that the fiber is likely to generate dust at the cutting end from the edge portion. However, since the edge is heat-cut as described above, the fiber is cut. The terminals can be fused together to control dust generation. Furthermore, since the multifilament crimped yarn composed of ultrafine fibers is a long fiber without fluff, the multifilament itself does not generate dust, and a wiping tape excellent in dustlessness can be obtained.

The wiping tape of the present invention further has an elongation of 20 to 50% in the longitudinal direction of the tape. Since there is no breakage and no new dust is generated, the cleanliness can be further improved. Moreover, the thickness of the wiping tape is set to 0.1 to 0.1.
7mm, tensile strength in the longitudinal direction 40-70kg / 5c
Since the length is set to m, breakage of single fibers of the ultrafine fibers due to the elongation does not occur, and wiping with excellent cleanliness can be performed.

FIGS. 1A and 1B show a wiping tape according to an embodiment of the present invention.

FIG. 1 (A) shows a wiping tape 1 obtained by slitting a woven multifilament crimped yarn made of ultrafine fibers by heat cutting to a narrow width. It has been rolled up. FIG. 1B shows a wiping tape 1 obtained by slitting the same woven fabric widely by heat cutting, and is also wound on a winding core 2 as a roll-shaped winding body 10.

The wiping tape 1 does not necessarily need to be wound up in a roll shape as shown in the drawing, but if it is wound up in a roll shape, it is possible to store a very long tape of, for example, 40 to 50 m in a very compact manner. . Further, if the film is wound up in a roll shape, the operation of wiping the surface of a resin film such as a magnetic tape can be facilitated when used in a method as shown in FIG.

In the wiping operation shown in FIG. 4, the winding body 30 on which the resin film 5 before the wiping operation is wound is set on the rewinding machine 6, and the resin film 5 is removed from the winding body 30.
While continuously winding it up on the winder 7 while pulling out
The winding body 10 of the wiping tape 1 is set in the upper rewinding machine 8, and the wiping tape 1 is pulled out from the winding body 10 and wound on the winding machine 9. The wiping tape 1 and the resin film 5 run in opposite directions to each other. When the pressing roll 4 is pressed down from the upper surface of the wiping tape 1 and pressed against the resin film 5, the wiping tape 1 is fixed on the surface of the resin film 5. The wiping action is performed while moving relative to each other with the frictional force.

FIGS. 5A and 5B show a case where the wiping tape wound up in a roll is used for wiping the hard disk surface.

In this wiping operation step, the winding body 10 of the wiping tape 1 is set in the rewinding machine 8 above the hard disk 15 set on the rotating shaft, and the winding body 1
From 0, the wiping tape 1 is wound around the winding machine 9 so as to cross the upper surface in the radial direction of the hard disk 15. When the pressing roll 14 is pressed down from the upper surface of the wiping tape 1 and pressed against the upper surface in the radial direction of the hard disk 15, the wiping tape 1 performs the wiping action while relatively moving on the surface of the hard disk 15 with a predetermined frictional force. Has become.

Further, the wiping tape 1 exhibits wiping performance based on the principle shown in FIGS. 6A and 6B by the function of a multifilament crimped yarn in which a large number of ultrafine fibers are bundled.

[0050] This wiping performance is not sufficiently effective when fibers having a single fiber fineness greater than 1 denier are used.

As shown in FIG. 6A, the multifilament crimped 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 with the wiping tape 1 formed from the woven fabric of the multifilament crimped yarn F, the wiped oil film and dirt D move to the gap G inside the multifilament crimped yarn F by capillary action. , Become trapped there. Therefore, wiping can be performed without leaving dirt on the surface to be processed, and since no oil film or dirt D remains on the surface of the wiping tape 1, repeated wiping can be performed.

Further, the wiping tape 1 does not spontaneously generate dust because the ultrafine fiber multifilament crimped yarn is a long fiber without fluff, and has a substantially dust-free property.

The wiping tape 1 of the present invention has a thickness of 0.1 to 0.7 mm, preferably 0.2 to 0.7 mm, woven using the multifilament crimped yarn made of the ultrafine fibers.
5 mm woven fabric is formed by slitting in a tape shape with a width of 3 to 1800 mm, and as a tape physical property, a tensile strength in a tape longitudinal direction is 40 to 70 kg / 5 cm,
The elongation is set to be 20 to 50%.

As described above, in the tape longitudinal direction, 20 to 50%
Has an elongation (rupture elongation) of, and by generating elongation due to the frictional force at the time of wiping, a single thread of ultra-fine fiber does not cause cutting, so that dust may be newly generated. Absent. If the elongation in the longitudinal direction of the tape is too small, the ultrafine fibers are liable to break single yarns. If the elongation is too large, the elongation becomes too large, and good wiping cannot be performed. In the present invention, the thickness of the tape is 0.1 to 0.7 mm and the tensile strength in the longitudinal direction is 4 mm.
The reason for setting the thickness to 0 to 70 kg / 5 cm is to prevent breakage of single yarn in the ultrafine fibers with respect to the frictional force.

Therefore, the wiping tape of the present invention has the above-mentioned tape characteristics, so that a wiping operation with higher cleanliness can be performed.

As shown in FIGS. 2 and 3, the wiping tape used in the wiping process in the hard disk manufacturing process, which is produced in a clean room, is processed into a substantially dust-free state and then subjected to a resin film. It is good to pack in the bag 3 hermetically.

Here, that the wiping tape is in a substantially dust-free state means that 20 particles having an amount of dust of 5 μm or more measured according to JIS B99236.2 (1.1) / 20 particles / ft ³ ··· 100 cm ² or less, more preferably 5 / ft ³ · 100 cm ² or less. The wiping tape 1 in such a substantially dust-free state is hermetically packed in a resin film bag 3 as shown in FIGS. 2 and 3, which is opened in a clean room where a hard disk manufacturing process is placed, and a wiping process is performed. In this case, the present invention can be easily applied to a hard disk manufacturing process or the like in which a super-dust-free state is provided.

The method for keeping the wiping tape in a substantially dust-free state as described above is not particularly limited. However, it is preferable that the wiping tape is completely washed with pure water using a washing machine. Preferably, the wiping tape is housed and sealed in a resin film bag.

The wiping tape of the present invention is used for cleaning various devices and the like, and is particularly preferably used for wiping the surface of electronic devices such as magnetic disks and magnetic tapes.

[0060]

(Example 1) 50 denier, 20
Filament antistatic nylon long fiber (single fiber fineness 2.
5d) was used, and a 100 denier 18-filament sea-island-type polyester multifilament crimped yarn having a knit denitration of 18 filaments was used as the weft yarn. In this multifilament crimped yarn, a fiber made of an alkali-soluble polyester made of polyethylene terephthalate as an island component and a copolymer of terephthalic acid and 5-sodium sulfoisophthalic acid as a sea component as a polyester acid component (sea component elution) Later single fiber fineness: 0.06 d). These warp yarns and weft yarns were each used in two lines, and eight satins having a warp density of 130 yarns / inch and a weft density of 130 yarns / inch were woven into a greige machine. The obtained greige was heat-treated in the presence of an alkali to completely remove the sea component of the sea-island type polyester multifilament crimped yarn of the weft yarn, and the weft yarn was decomposed into ultrafine fiber yarn. Next, the woven fabric was subjected to a dry heat treatment at 160 ° C. for 40 seconds to finish.

The obtained woven fabric had a vertical density of 150 filaments / inch, that is, the number of filaments per inch was 15
0 × 20 = 3,000 lines, horizontal density: 136 lines /
Inches, that is, 136 × 18 × 70 × 2 = 342,
720 lines / inch. The ratio of the number of filaments of the warp yarn to the weft yarn was about 114. In addition, the total fineness of the warp yarn is 50 × 150 = 7,500D, the total fineness of the weft yarn is (100 × 0.9) × 2 × 136 = 24,480D,
The fineness ratio of the weft yarn to the warp yarn was 3.26.
The woven fabric had a moderate uneven pattern on the woven fabric surface.

Further, this woven fabric was cut into a tape shape having a width of 70 mm in the vertical direction to obtain a wiping tape. The obtained tape (tensile strength: 62 kg / 5 cm, elongation 25)
%), The warp yarn was invisible due to the floating structure of the weft yarn. As a result of evaluation of the wiping properties, there was no wiping residue, the wiping properties were grade 5 and there was no vertical streak, and excellent performance was confirmed.

The wiping property was evaluated as follows.
Silicone oil SH200 (Dow Corning Toray)
Silicone Co., Ltd.) was dropped on a glass plate of about 5 mg with a syringe needle, and a sample (wiping cloth) fixed to one end of a cylindrical load having a diameter of 45 mm and a weight of 1 kgf was placed on the glass plate at a speed of 1 m / min. Move and wipe off the silicone. Next, a toner for a dry copying machine (SF-76T: manufactured by Sharp Corporation) is sprinkled on a glass plate, and the toner is blown off with compressed air (1 kgf / m ² ). A cellophane tape (manufactured by Sekisui Chemical Co., Ltd., registered trademark) is attached to the surface of the glass plate to remove the residual toner on the glass plate, and the degree of the toner adhered to the cellophane tape is determined. The toner to which no toner adhered (the silicone on the glass plate was completely wiped) was classified into Class 5 and the toner in which a very large amount of toner remained was classified as Class 1, and visually judged in five steps. Further, the state of adhesion of the remaining toner was evaluated based on the presence or absence of vertical streaks.
The presence / absence of this vertical streak coincided with the presence / absence of wiping residue for the purpose of removing the abrasive in the actual hard disk manufacturing process.

(Comparative Example 1) 50 denier, 4
0 filament polyester filament (single fiber fineness:
1.25d), the warp was temporarily twisted into a weft yarn.
Using a denier, 72 filament polyester fiber yarn (single fiber fineness: 0.97d), weaving and processing were performed in the same manner as in Example 1. The obtained woven fabric has a vertical density of 150 fibers /
Inches, ie the number of filaments per inch is 15
0 × 40 = 6,000 lines, horizontal density: 146 lines /
Inches, that is, 146 × 72 = 10,512 lines / inch. The ratio of the number of filaments of the warp yarn to the weft yarn was about 1.8.

The weft yarn of the obtained woven fabric has a floating structure due to crimping, but the warp yarn of the woven fabric is visible, the groove formed by the warp yarn is conspicuous, the wiping property is evaluated, and the wiping property is largely unremoved. 2
Vertical streaks were observed in the class, and sufficient performance was not obtained.
This is probably because the number of filaments in the weft yarn is small.

Example 2 50 denier, 4
An 8-filament polyester antistatic long fiber (single fiber fineness: 1.04 d) was used, and a sea-island-type polyester multifilament crimped yarn of 75 denier and 36 filaments which had been knit denitted was used for the weft yarn. In this multifilament crimped yarn, a fiber made of an alkali-soluble polyester made of polyethylene terephthalate as an island component and a copolymer of terephthalic acid and 5-sodium sulfoisophthalic acid as a sea component as a polyester acid component (sea component elution) Later single yarn fineness: 0.12d).

Using these two warp yarns and two weft yarns, each having a warp density of 130 yarns / inch,
Five satins having a weft density of 115 yarns / inch were woven into a greige machine. This greige is heat treated in the presence of alkali,
By completely removing the sea component of the sea-island type polyester multifilament crimped yarn, the weft was decomposed into an ultrafine yarn.
Further, by performing treatment with hot water at 130 ° C., the densification due to shrinkage of the yarn and washing were simultaneously performed. Next, the woven fabric was subjected to a dry heat treatment at 160 ° C. for 40 seconds to finish the fabric.

The obtained woven fabric had a vertical density of 145 filaments / inch, that is, the number of filaments per inch was 145 filaments.
× 48 = 6,960 lines, horizontal density: 130 lines / inch, that is, 130 × 36 × 16 × 2 = 149,79.
0 / inch. The ratio of the number of filaments of the warp yarn to the weft yarn was about 21. The total fineness of the warp yarn is 50
× 145 = 7,250 D, and the total weft yarn fineness is (75
× 0.9) × 2 × 130 = 17550D, and the fineness ratio of the weft yarn to the warp yarn was 2.52. The woven fabric had a moderate uneven pattern on the woven fabric surface.

Further, the woven fabric was cut into a tape shape having a width of 70 mm in the vertical direction to obtain a wiping tape. The obtained tape (tensile strength: 59 kg / 5 cm, elongation 37%)
Had a sufficient weft thread floating structure. As a result of evaluation of the wiping properties, there was no wiping residue, the wiping properties were grade 5 and there was no vertical streak, and excellent performance was confirmed.

[0070]

According to the present invention, according to the present invention, a woven fabric having a floating structure of a multifilament crimped yarn composed of a knit denit ultrafine fiber is formed according to the total fineness ratio or the number ratio of the warp yarn and the weft yarn. The excellent wiping properties and the long fibers based on the multifilament crimped yarns made of the ultrafine fibers make it possible to obtain a wiping tape that is more excellent in wiping properties in a certain direction. In particular, it is possible to obtain a wiping tape that is used in a clean room and has high reliability as a wipe pink material in a manufacturing process of electronic information equipment that is wiped mechanically rather than manually by humans. This effect is enhanced by using a knit deknit ultrafine crimped fiber for a multifilament crimped yarn composed of ultrafine fibers.

Further, by using a multifilament yarn composed of antistatic fibers for the other yarn, the generation of static electricity can be suppressed and the amount of dust generated can be reduced.

Furthermore, the tape has low dustiness due to both edges being heated, and furthermore, by setting the elongation in the tape longitudinal direction to 20 to 50%, a proper elongation at the time of wiping is achieved. It does not cause single yarn breakage in the ultrafine fibers, and does not cause a decrease in cleanliness due to new dust generation,
In addition, since the tape thickness is 0.1-0.7 mm and the tensile strength in the longitudinal direction is 40-70 kg / 5 cm, the single-thread breakage of the ultrafine fibers does not occur and the wiping operation with higher cleanliness is possible. Become.

[Brief description of the drawings]

FIGS. 1A and 1B are perspective views each showing a wiping tape according to an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment in which the wiping tape of the present invention is hermetically packed in a resin film bag.

FIG. 3 is a sectional view taken along the line XX of FIG. 2;

FIG. 4 is an explanatory diagram showing a usage example of the wiping tape of the present invention.

FIGS. 5 (A) and 5 (B) show another usage example of the wiping tape of the present invention, wherein (A) is a schematic side view and (B) is a plan view.

FIGS. 6A and 6B are explanatory views showing the operation of the wiping tape of the present invention.

[Explanation of symbols]

 1: Wiping tape 2: Core 3: Resin film bag 10: Winding body (of wiping tape)

Claims (12)

[Claims] 1. A woven fabric comprising a knit denit multifilament crimped yarn composed of ultrafine fibers having a single fiber fineness of 1 denier or less for at least one of a warp yarn and a weft yarn, wherein the warp yarn and the weft yarn are used. Of the total fineness of 1.5 ~
A wiping tape characterized by a factor of ten. 2. The wiping tape according to claim 1, wherein a multifilament yarn containing an antistatic fiber is disposed on at least one of the warp yarn and the weft yarn. 3. The weft yarn is a multi-filament crimped yarn, and the warp yarn is a multi-filament yarn containing an antistatic fiber.
The described wiping tape. 4. The wiping tape according to claim 3, wherein the total fineness of the multifilament crimped yarn is larger than the total fineness of the multifilament yarn containing the antistatic fiber. 5. The wiping tape according to claim 3, wherein the woven structure is a floating structure of the multifilament crimped yarn, and has undulations converged on the surface. 6. The wiping tape according to claim 1, wherein a ratio of the number of the warp yarns to the number of the weft yarns per unit area is 1:10 or more. 7. The wiping tape according to claim 1, wherein the number of the weft yarns is larger than the number of the warp yarns. 8. The warp yarn is a raw yarn having a single yarn fineness of 0.5 to 5.0 denier, and has a shrinkage of 1 in hot water at 100 ° C.
2. A synthetic fiber comprising 0% or less of synthetic fibers.
A wiping tape according to any one of claims 1 to 7. 9. The wiping tape has a thickness of 0.1 to 0.1.
It is formed by heat-cutting both edges into a tape having a width of 0.7 mm and a width of 3 to 1,800 mm, and has a tensile strength in the longitudinal direction of the wiping tape of 40 to 70 kg / 5.
The wiping tape according to any one of claims 1 to 8, wherein the wiping tape has a cm and an elongation of 20 to 50%. 10. JIS B9923 6.2 (1.
10. The wiping tape according to any one of claims 1 to 9, wherein the amount of particles generated by the wiping tape according to 1) is 5 μm or more and 20 particles / ft ³ · 100 cm ² or less, and the wiping tape is hermetically packed in a resin film bag. The wiping tape according to 1. 11. The wiping tape according to claim 1, wherein the wiping tape is wound up in a roll shape around a core. 12. The method according to claim 1, wherein the rotary drive roller system is used for wiping stains of electronic device parts while being pulled and moved.
12. The wiping tape according to any one of items 11 to 11.