KR19990012382A - Conductive antistatic sheet and clothing using same - Google Patents

Abstract

The present invention relates to a conductive antistatic sheet capable of continuing to attenuate or remove static electricity charged to a human body, clothes, and various objects by self discharge, and to a food product using the same.

It is characterized in that the woolen yarn composed of ultra-conductive short fibers and natural fibers and synthetic fibers is fixed to a bubble woven the bubble yarn made of ultra-conductive short fibers, natural fibers and synthetic fibers, and brushed with a straight hairline.

Description

Conductive antistatic sheet and clothing using same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive antistatic sheet and a foodstuff using the same, and more particularly, to a conductive antistatic sheet applicable to attenuation or removal of static electricity charged from a human body, clothes, and other objects by self discharge. It is about clothing.

Static charges are generated in the insulator by friction between objects, the flow of liquid, the flow of powder, and the like as the fine particles adsorb ions. For example, electrostatic charges are charged to the human body and clothes from clothes, carpets, floor tiles, and the like installed by human walking. In particular, in recent years, the use ratio of synthetic fibers is high, and the fibers have been surface-treated with synthetic resins, etc., making it easier to charge more. For this reason, various troubles, such as an electric shock, adhesion of dust, and a risk of discharge ignition, occur.

As antistatic measures for these textile products, for example, antibacterial antistatic fiber sheets (Japanese Patent Laid-Open Publication No. 94-248562) in which pile yarns containing copper and pile yarns containing aluminum are put in a discharged fiber sheet, The use of spun fiber in which organic antistatic agents are pasted into various synthetic resins (Japanese Patent Laid-Open Nos. 90-207492 and 90-68898) has been proposed.

However, the antimicrobial antistatic fiber sheet described above describes the use of each fiber coated with copper and aluminum, or each fiber containing copper wire and aluminum wire in its pile yarn. In corridors and automobiles with a lot of traffic, the consumption is severe and conductivity is easily reduced by peeling or abrasion of copper or aluminum surface coats. It is not suitable for the sheet or clothing that has strong irritation against the human body. On the other hand, the synthetic resin is made of fibers pasted with an organic antistatic agent, which has high insulation properties and is easy to charge when the humidity decreases, and the antistatic agent is eluted in washing such as rinsing or dry cleaning, thereby reducing the antistatic effect. There is.

In addition, since static electricity is generated by operating electronic devices in conjunction with the development of electronic devices in recent years, various antistatic measures have been implemented, but these are not necessarily sufficient.

The present invention provides a conductive antistatic sheet and a food using the same, which can solve the above problems and continue to attenuate or remove the static electricity charged to the human body, clothes and various objects by self discharge.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which shows the weaving of the woolen yarn and bubbler of this invention.

2 is a perspective view of a conductive antistatic sheet of the present invention.

Figure 3 is a schematic view of the conductive antistatic sheet of the present invention as a bracelet.

Figure 4 is a schematic diagram of the sewing by the conductive antistatic sheet of the present invention as a point of the garment.

* Description of the symbols for the main parts of the drawings *

1: raising yarn 2: foaming yarn

3: raising 4: bubble

5: sleeve point of clothing 6: chest point of clothing

MEANS TO SOLVE THE PROBLEM As a result of earnestly examining in view of the said subject, the present inventors discovered that the electroconductive sheet | seat with the brushed straight line which consists of the raising yarn and bubble yarn containing a microconductive short fiber has a good feel, and can antistatically prevent static electricity over a long time. I thought crazy about the present invention.

In other words, the conductive antistatic sheet of the present invention is made of conductive short fibers having a fiber diameter of 1 to 30 µm, conductive bristle yarns composed of natural fibers and synthetic fibers, and made of conductive short fibers having a fiber diameter of 1 to 30 µm, natural fibers and synthetic fibers. It is fixed to the bubble which woven the electroconductive bubble yarn, and is brushed by the straight hairline.

In addition, the garment of the present invention is made by using the conductive antistatic sheet.

The present invention is described in detail below.

Examples of the conductive short fibers (also referred to as conductive monofilaments, hereinafter referred to as conductive fibers) in the present invention include various metals or carbon fibers. Among them, copper, stainless steel, aluminum, carbon fibers, and the like have low electrical resistance and productivity. It is preferable at the point of. The fiber diameter is 1 to 30 mu m, preferably 10 to 30 mu m, and particularly preferably 10 to 15 mu m in stainless fibers. If the fiber diameter is less than 1 µm, the fibers tend to stick and the back of the brush is weak. On the other hand, if the diameter exceeds 30 µm, the ionization of the gas molecules due to electrostatic charges is not carried out quickly. It is not suitable because it becomes strong.

In addition, in the use of carbon fibers, the sheet may become black due to abrasion, and therefore, it is preferable to perform surface treatment of the fibers in advance.

Moreover, wool, cotton yarn, etc. are mentioned as a natural fiber. Moreover, as synthetic fiber, what consists of short fibers, such as polyolefin, such as polyethylene and a polypropylene, polyacrylonitrile, polyester, and polyamide, is preferable. The fiber diameter of these synthetic fibers is preferably about 5 to 20 µm.

The brushed yarn which forms the brush of the antistatic sheet in this invention consists of a fiber bundle of a straight line from said conductive fiber, natural fiber, and synthetic fiber. By using this napping yarn as a fiber bundle, napping can be made into a straight hair like a brush. Moreover, although it is not necessary for the brushed yarn to contact conductive fibers with respect to the thickness of one fiber bundle, it is preferable to approach each other from the point of attenuation or removal of static electricity.

Moreover, the ratio of the said conductive fiber is 10-40% with respect to the thickness of one fiber bundle, More preferably, it is 10-30%. If the proportion of the conductive fiber is less than 10%, the conductivity is insufficient, and the ionization of gas molecules rapidly by the electrostatic charge of the charged static electricity is insufficient to attenuate or remove the charge by self discharge. On the other hand, if it exceeds 40%, there is no problem in conductivity, but it is densely brushed from fine conductive fibers, natural fibers and synthetic fibers to prevent them from sticking, and also prevents loss due to abrasion of the conductive fibers. In consideration of productivity, the above upper limit is preferable, and, for the purpose, a woolen yarn can be used alone or as a suitable mixture of conductive fibers and conductive fibers.

In addition, it is preferable that the brushed hair formed by the brushed yarn is densely brushed by a straight line like a brush, and in particular, the conductive fiber is extremely fine or the tip of the fiber is needle-shaped so that the static electricity is attenuated or removed by self-discharge. It is preferable at the point of performing.

The bubble yarn which forms the bubble in this invention consists of a fiber bundle or twisted yarn of said conductive fiber, natural fiber, and synthetic fiber. This bubble yarn is preferably 10 to 20%, more preferably 10 to 15%, based on the thickness of one fiber bundle. If the proportion of the conductive fibers is less than 10%, it is insufficient to self-discharge or remove the static electricity accumulated by ionizing gas molecules caused by the electrostatic charge of the charged static electricity carried out between the bubbles and the brushed conductive fibers. On the other hand, if it exceeds 20%, there is no problem in conductivity, but the potential difference between the yarns is small, and the upper limit is preferable in consideration of attenuation or removal and productivity due to rapid self discharge of static electricity. Therefore, the content of the conductive fiber of the bubble yarn is less than the content of the conductive fiber in the brushed yarn within the above range because the potential difference between the bubble and the brush is increased, so that the attenuation or removal by the self-discharge of static electricity from the brush is accelerated. Do. In addition, you may use short fiber together with the natural fiber or synthetic fiber of bubble yarn. In addition, you may use what was dyed according to the use of said raising yarn and bubble yarn.

Next, the conductive antistatic sheet of the present invention and the food using the same will be described in detail with reference to the drawings. What is shown in the figure shows the schematic diagram of the electrically conductive antistatic sheet of this invention, its fiber structure, and the use example for the garment. FIG. 1: is a schematic diagram which shows the raising 3 which consists of the said electroconductive yarn 1, and the part which the said foam yarn 2 reciprocates in between, fixing the raising yarn 1, and forming the sheet | seat. In addition, the specific knitted fabric of the brushed yarn and the bubbler can be woven with a Maryas bite, and then the portion to be raised is cut with a knife to form a straight hairline. Fig. 2 is a conductive antistatic sheet formed of bubbles 4 and napping 3 that are continuously incorporated in the above manner. By such interlocking fixation, static electricity in the air can be efficiently attenuated or removed from the both surfaces of the conductive fibers of the raising and foaming by self discharge.

3 and 4 show examples of use of the conductive antistatic sheet of the present invention as a garment, and FIG. 3 is a bracelet, which is made of a brush and wound around a rubber sheet of a seam (3) and a foam (4), and is easily detached and detached. And wear it on your wrist when you need it. 4 is an example in which the conductive antistatic sheet of the present invention is sewn to the sleeve point 5 and the chest point 6 of the garment as points of the garment.

As another use example, after applying a commercially available conductive adhesive to the air bubbles of the conductive antistatic sheet of the present invention, a metal foil such as copper, stainless steel, aluminum, or the like is applied, and a commercially available conductive adhesive is applied to the CRT of the TV. It may be used to remove static electricity from the charged object by attaching it to a frame, a door knob or the like and to prevent adhesion of dust or the like.

As described above, the conductive antistatic sheet of the present invention rapidly ionizes gas molecules by electrostatic charge of static electricity accumulated in bubbles woven bubble yarns containing fine conductive fibers and fine woolen yarns containing fine conductive fibers, thereby allowing air and Self-discharge of water vapor in the air attenuates or removes the accumulated static electricity. In addition, the garments using the conductive antistatic sheet can be easily prevented from being charged at each place by wearing them.

EXAMPLE

The invention is illustrated in more detail by the following specific examples.

Example 1

10 wool fine fibers having a fiber diameter of 30 μm, and a polyester fiber having 30% copper fiber with respect to the thickness of a bundle of fibers in which polyester short fibers are numbered 10 times per cotton yarn number; Woven yarn with 15% copper fiber for the thickness of one bundle of bundles of nylon short fibers were numbered 30 times per cotton yarn number with a Maryas knitting machine, after which the raised part was cut with a knife and brushed with a straight hairline. An antistatic sheet was obtained.

For comparison, a brushed sheet and a conductive sheet were obtained in the same manner from the same number of woolen yarns and bubble yarns not containing the copper fiber, and the same number of woolen yarns and bubble yarns containing the copper fiber having a fiber diameter of 100 µm.

The brushed sheet and the conductive sheet for comparison with the obtained electroconductive static electricity sheet were each wound around a rubber core and sewn to obtain a bracelet as shown in FIG. 3.

Each bracelet is worn on the human body, and a carpet of acrylic fiber and hair (acrylic fiber / hair = 3/7) is mixed at a temperature of 25 ° C. and a relative humidity of 25% for 1 minute and 5 minutes at a speed of 70 m / min. We walked and measured the human body's counter voltage for each. In the breathlet wearing of the electroconductive static electricity sheet, the large voltage after 1 minute was 3.5 kv, and after 5 minutes was 3.4 kv. Moreover, there was no irritation to skin and the touch was good at the time of wearing. The brushed sheet not containing copper fibers had a voltage of 7.5 kv after 1 minute and a voltage of 12.0 kv after 5 minutes. The copper fiber having a fiber diameter of 100 占 퐉 had a voltage of 4.5kv after 1 minute and a voltage of 4.0kv after 5 minutes.

Example 2

A commercially available conductive adhesive (an adhesive made of metal fiber or metal powder) was applied to the conductive antistatic sheet of the present invention obtained in Example 1, and the dried product was cut into a width of 20 mm x a length of 200 mm and attached to the square of the frame of the CRT of the TV. The static electricity was removed.

As a result, although the large voltage before attaching the said electroconductive static electricity sheet was 4.0-4.5kv, the large voltage after attaching to the square fell to near 0kv, and it fell to the value which cannot be measured with a normal voltage meter.

Using the conductive antistatic sheet of the present invention as described above can realize a high voltage of 4.0kv, which can solve the electric field of the human body caused by the discharge phenomenon. In addition, since the fine conductive fiber is used, the texture is also good.

The conductive antistatic sheet and the foodstuff using the same according to the present invention can effectively carry out self-discharge in the air efficiently by conducting static electricity charged from the human body, clothes, and various objects, thereby preventing an electric field due to discharge to the human body, You can prevent the gathering of people to prevent dirt.

Therefore, the conductive antistatic sheet and the apparel of the present invention can be used for various purposes, in particular, the seat of a car, a cover of a chair, a lining of a garment, a point of a garment, a apparel such as a bracelet, other accessories, a frame of a CRT of a TV. It is most suitable for direct contact with human body such as metal band of wrist watch, metal case such as electric appliance such as electronic device, door knob, window frame, and other furniture. Can be used.

Claims (5)

Conductive braided yarn consisting of conductive short fibers having a fiber diameter of 1 to 30 μm and natural fibers and synthetic fibers to a bubble woven into conductive bubble yarns having conductive short fibers having a fiber diameter of 1 to 30 μm and conductive fibers made of natural and synthetic fibers. A conductive antistatic sheet, which is fixed and raised by a straight line. The method of claim 1, The conductive antistatic sheet is characterized in that the conductive short fibers are one kind or two or more kinds of copper, stainless steel, aluminum or carbon fiber. The method according to claim 1 or 2, The conductive antistatic sheet, wherein the brushed yarn and the bubble yarn contain 10 to 40% of the woolen yarn and 10 to 20% of the bubble yarn with respect to the thickness of each fiber bundle. The method according to any one of claims 1 to 3, wherein A conductive antistatic sheet, characterized in that the fixing is by weaving the woolen yarn together with the bubble. The method according to any one of claims 1 to 4, Clothing made using a conductive antistatic sheet.