JPH1121763A - Elastic cloth for elastic garment and elastic garment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a flexible elastic cloth excellent in antistaticity and functionality and useful for elastic garments such as outer garments by forming a metal deposition coating film on the surfaces of the filaments constituting the surface of a nonwoven fabric in which the mutual contact portions of elastic filaments are fused. SOLUTION: This elastic cloth for elastic garments comprises a moisture-permeable nonwoven fabric 11 which comprises thermally fusible elastic filaments, in which the mutual contact portions of the filaments are fused and in which the surfaces of the filaments constituting one surface of the nonwoven fabric 11 are coated with a metal deposition film 12. The METSUKE of the nonwoven fabric 11 is preferably 50-200 g/m<2> , and the metal deposition film 12 is preferably formed by a spattering method. The thickness and the surface resistance of the metal deposition film are preferably 50-2000 Å and 10<7> -10<11> Ω/cm<2> , respectively. A part constituting a garment to be worn on a human body, such as an outer garment, stockings, gloves or a cap, comprises the elastic cloth 10 for the elastic garment. Therein, in the bonded portion of the part the non-deposited surfaces of the part are preferably superposed on each other in a contact state, and subsequently fused by a ultrasonic heating method, and it is preferable that the deposited surface constitutes the surface of the garment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-chargeable stretchable garment fabric and a stretchable garment comprising the garment fabric, and relates to a clean room such as a semiconductor factory, a precision machine factory, an electronic equipment assembly factory and a hospital. The present invention provides a stretchable garment suitable for work in a computer.

[0002]

2. Description of the Related Art Working clothes in a clean room do not generate dust from the clothes themselves, do not allow dust or dirt generated from the human body to go outside, do not carry static electricity, do not absorb dust, and breathability. Knitted fabrics and woven fabrics in which a small amount of conductive fibers are mixed into polyester filament yarns are known as clothing fabrics that satisfy such demands. .

[0003] However, the polyester filament yarn is made by bundling a large number of long fibers (filaments) and twisting them with conductive fibers such as metal fibers. Therefore, there are problems that the production process is long, the cost is high, and the obtained fabric is hard and has poor stretchability.

[0004]

SUMMARY OF THE INVENTION The present invention relates to clothes to be worn on the human body such as outer garments, socks, gloves and hats by using a stretchable non-woven fabric made of filaments having rubber-like elasticity instead of woven fabrics. Disposable stretchable garment and fabric for the stretchable garment, which can be used for work in a clean room, and which is more flexible, richer in elasticity, and can be manufactured at a low cost, and which is disposable. Is what you do.

[0005]

The stretchable garment fabric of the present invention is a moisture-permeable non-woven fabric made of elastic fiber filaments having a heat-melting property, and the contact portions between the filaments are fused. It is characterized in that the surface of the filament constituting one side of the nonwoven fabric is covered with a metal deposition film.

The above-mentioned elastic fiber is a fiber having heat melting property in addition to rubber-like elasticity, and examples thereof include polyether-based and polyester-based polyurethane fibers, and fibers made of polyester-polyether-based copolymer elastomer. Is done. The nonwoven fabric used in the present invention is preferably spunbonded, that is, a large number of the elastic fiber filaments are melt-spun and collected while cooling and dispersing. Manufactured. It is desirable that the above-mentioned elastic fiber filaments be crimped by an asymmetric cooling method after spinning or the like.

The basis weight of the nonwoven fabric is 50 to 200 g / m ² , especially 50 to 100 g / m ² .
m ² is preferred. If the basis weight is less than 50 g / m ² ,
Insufficient strength as clothes and excessive gaps between elastic fiber filaments cause dust and the like generated from the human body to pass through, making it easier to pollute the environment. Conversely, if it exceeds 200 g / m ² , it becomes thick and economical. Not.

In the stretchable garment fabric of the present invention, a metal is vapor-deposited on one side of the above-mentioned non-woven fabric made of the above-mentioned elastic fiber filament, and the surface of the above-mentioned elastic fiber filament constituting this one side is covered with a metal vapor deposition film. Made. The vapor deposition means
Sputtering, arc discharge, ion beam method and the like are preferable in that the peel strength of the deposited film is large. In particular, sputtering is particularly preferable because the operation is relatively easy.

The metal for vapor deposition may be an alloy or a metal oxide as long as it is electrically conductive. Titanium is a pure metal in view of easiness of obtaining and processing, corrosion resistance of the deposited film, acid resistance, and the like. As the alloy, stainless steel is preferable, and as the metal oxide, zinc oxide, indium oxide, tin oxide, or the like is preferable. In particular, since the metal oxide is transparent and does not exhibit a metal color, the color tone of the elastic fiber filaments can be seen through.For example, by coloring the elastic fiber filaments in an arbitrary color by coloring the raw material or the like, This is preferable in that the decorativeness of clothes can be further improved.

[0010] The thickness and surface resistance of the deposited film are 50 to 2000 ° and 1 respectively.
It is preferably from 0 ⁷ to 10 ¹¹ Ω / cm ² . When the thickness of the deposited film is less than 50 mm or when the surface resistance exceeds 10 ¹¹ Ω / cm ² , it tends to be charged with static electricity and the intended purpose cannot be achieved. When the surface resistance is less than 10 ⁷ Ω / cm ² , the processing cost is increased, which is uneconomical.

In the above-mentioned sputtering deposition, the nonwoven fabric made of the elastic fiber filaments is set in a sealable casing in a spread state having a wrinkle-free elongation of 0 to 5%,
Cooled from the back side, the melting point (absolute temperature) of the deposited metal is 1
/ 2 or less, preferably 1/3 or less, and by sputtering in the presence of a trace amount of inert gas, a vapor-deposited film having an amorphous structure composed of a target metal, metal oxide or alloy is formed on the surface of the nonwoven fabric. It is formed.
Note that the metal oxide deposited film can also be formed by introducing a small amount of oxygen into the above-described casing and oxidizing the pure metal of the target at the time of scattering.

[0012] Since these metallized films are formed by the fine metal particles projecting from the target adhering to the surface of the elastic fiber and being cooled at the same time, they do not form a continuous body as when the metal is cooled in a molten state. , Many points are in a dense form. Therefore, when the nonwoven fabric is stretched, the interval between two adjacent points in the vapor-deposited film increases, and the elongation of the elastic fiber is not hindered by the vapor-deposited film.

According to a fourth aspect of the present invention, there is provided a stretchable garment fabric according to any one of the first to third aspects, wherein components of the garment worn on the human body, such as outer garments, socks, gloves, and hats. The stretchable garment is characterized in that the non-deposited surfaces on the back surface are overlapped and fused by ultrasonic heating at the joint, and the deposited surface constitutes the garment surface.

That is, the stretchable garment of the present invention uses a conductive stretchable nonwoven fabric obtained by depositing a metal (including a conductive alloy and a metal oxide) on the surface of a nonwoven fabric made of elastic fiber filaments. The above-mentioned non-woven fabric is made of elastic fiber filaments, the filaments constituting the non-woven fabric are fused (self-adhesive), and the non-woven fabric components are joined by ultrasonic heating. In addition, since the metal deposition film on the surface is firmly fixed by sputtering, dust is not generated from the clothes side and the environment is not polluted.

Further, since a large number of the elastic fiber filaments are interlaced in a plane to form a nonwoven fabric, dust and dirt generated from the human body do not go outside. In addition, since the metal vapor deposition film is attached to the filament constituting the surface of the nonwoven fabric, the filament is not charged with static electricity and therefore does not absorb dust.

Further, as described above, since a large number of elastic fiber filaments intersect in a plane and the contact portions between the filaments are fused, fine voids are formed in the nonwoven fabric, and air permeability and permeability are formed. It has good wettability, elastic fiber filaments are soft and stretchable, and it is comfortable to wear. Furthermore, since the constituent fibers of the nonwoven fabric are elastic fibers,
It is flexible and has good elasticity, and the functionality when worn is improved.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 A plurality of nozzles having several tens of discharge holes are arranged in a line,
A number of elastic fiber filaments are spun downward from these nozzles by the melt spinning method, taken up by an aspirator while cooling, and further injected downward with air to be collected on a wire mesh. The contact points are fused to produce a nonwoven fabric having a basis weight of 50 to 100 g / m ² .

After drying the obtained nonwoven fabric in a conventional manner, it is spread in a sealable casing so as not to cause wrinkling, and a rod-shaped anode and a stainless steel target (cathode) for sputtering are provided in front of the nonwoven fabric. Then, a water-cooled cooling plate is brought into contact with the back surface of the nonwoven fabric to cool the nonwoven fabric to a temperature of preferably 70 ° C. or less. Next, the pressure in the casing is reduced to about 1 × 10 ⁻⁵ Torr, and argon gas is introduced to reduce the pressure in the casing to 5 × 10 ⁻⁴ Torr.
Adjust to a low pressure argon gas atmosphere of about 400 to 800 V and 10 to 10 V between the anode and the cathode.
A 0 A direct current is applied to cause the stainless steel to fly out of the target, adhere to the surface of the nonwoven fabric, and have a thickness of 50 to 2,000 mm in the form of an amorphous structure and a flat set of fine points. Is formed.

In FIG. 1, reference numeral 11 denotes a nonwoven fabric made of the above-mentioned elastic fiber filaments, reference numeral 12 denotes a stainless steel vapor-deposited film, and reference numeral 10 denotes a stretchable clothing cloth comprising the above-described nonwoven fabric 11 and the vapor-deposited film 12. The above-mentioned elastic clothing fabric 10
Is cut into the desired outer garments, hats, gloves, socks and other parts of the garments. Then, these parts are joined to form a desired garment.

In FIG. 2, reference numerals 10A and 10B denote parts obtained by cutting the above-mentioned stretchable garment cloth 10, respectively. Is heated by an ultrasonic sewing machine (not shown) along a line perpendicular to the paper surface, and is joined by melting of the elastic fiber filaments constituting the nonwoven fabric 11. FIG. 3 is a cross-sectional view of a bag portion, such as a finger portion of a glove, in which a nonwoven fabric 11 of an upper part 10C of a finger located above and a nonwoven fabric 11 of a belly 10D of a lower finger are put together,
The left and right overlapping portions 13 are joined by an ultrasonic sewing machine, respectively.

Embodiment 2 A vapor-deposited film having an amorphous structure thickness of 50 to 2000 ° is formed on the surface of the nonwoven fabric 11 in the same manner as in Embodiment 1 except that the target is made of titanium. Fabric for clothing. Hereinafter, a stretchable garment is manufactured in the same manner as in the first embodiment.

Embodiment 3 In Embodiment 1 described above, the target is made of zinc, the pressure in the casing is adjusted to a low-pressure argon gas atmosphere of about 5 × 10 ⁻⁴ Torr, and oxygen is further introduced to reduce the pressure. When adjusted to about 9 × 10 ⁻⁴ Torr, and then a direct current is applied in the same manner as described above, zinc that has jumped out of the cathode target reacts with oxygen in the casing, and the surface of the nonwoven fabric 11 is made of zinc oxide having an amorphous structure. The transparent vapor-deposited film 12 is formed, and the stretchable clothing fabric 10 is obtained. Hereinafter, a stretchable garment is manufactured in the same manner as described above.

[0023]

【Example】

Example 1 A roll of a commercially available urethane nonwoven fabric (basis weight 80 g / m ² , width 100 cm, length 100 m) composed of polyurethane elastic fiber filaments was set on a delivery shaft inside a sputtering casing, and one end of the urethane nonwoven fabric was used. Was pulled out and fixed to a take-up roll, and the water-cooled cylinder was brought into contact with the back surface of the urethane non-woven fabric from the delivery shaft toward the take-up roll, thereby maintaining the urethane non-woven fabric in a spread state.

The inside of the above-mentioned casing is pressure 5
After the pressure was reduced to about × 10 ⁻⁵ Torr, an argon gas was introduced to adjust the atmosphere to a low pressure argon gas atmosphere of about 5 × 10 ⁻⁴ Torr, and then the urethane nonwoven fabric placed before the urethane nonwoven fabric was used. A DC current of 500 V × 100 A was applied to a rod-shaped stainless steel target parallel to the width direction to start discharge. After the discharge was stabilized, the urethane nonwoven fabric was maintained at 70 ° C. or less at 2 m / m.
Moving at a speed of 1 minute, and depositing a deposition film having a thickness of 1000 mm made of stainless steel on the surface of the urethane nonwoven fabric,
A stretchable clothing fabric was obtained.

The surface resistance of the vapor-deposited film of the obtained stretchable clothing cloth was measured and found to be 10 ⁹ Ω / cm ² . In addition, when the moisture permeability before and after the above-mentioned urethane nonwoven fabric was subjected to sputtering was compared, both were 6000 g /
m ² / 24H. That is, even when a vapor deposition film was deposited by sputtering, the moisture permeability before vapor deposition was maintained.

The stretchable garment cloth is cut into a glove shape, and the two cloths are overlapped so that the urethane nonwoven fabric side is in contact with each other. The two front and back urethane nonwoven cloths at the edges are fused with an ultrasonic sewing machine to form a glove. Created. This glove is thin and stretchy, so it fits well with the hand, especially the feel of the fingertips does not feel uncomfortable, the feel when picking up objects is close to the distance between bare hands, and wear it for a long time. There was no stuffiness, and the functionality was extremely excellent for working in an environment that dislikes static electricity and dirt.

Example 2 The basis weight was 8 in the same manner as in Example 1 except that zinc oxide (“G target” manufactured by Asahi Glass Co., Ltd.) was used as the target.
A transparent vapor-deposited film made of zinc oxide and having a thickness of 500 ° was formed on a urethane nonwoven fabric of 0 g / m ² . Surface resistance is 10
^{It was 10} Ω / cm ² . Gloves were made using the stretchable clothing fabric of Example 2 in the same manner as in Example 1. The gloves had the same functionality as in Example 1, and the vapor-deposited film was transparent. The color tone was seen through and the metallic color was not exhibited, so that the discomfort in appearance disappeared.

[0028]

As described above, the inventions according to the first to third aspects are obtained by depositing a metal (including a conductive alloy and a metal oxide) on the surface of a nonwoven fabric made of elastic fiber filaments. Since it is a conductive stretchable non-woven fabric, no dust is generated, no dust or dirt passes from the non-deposited surface side to the deposited surface side, and since it has a metal deposited film on the surface, it is charged. It does not adsorb dust, has good air permeability, is flexible, has good elasticity, improves functionality when worn, and significantly reduces the manufacturing process compared to the conventional one, and is inexpensive It becomes possible to manufacture.

Further, the invention described in claim 4 is a garment made of the above-mentioned stretchable nonwoven fabric, which is suitable for work in a clean room, and can be manufactured at low cost, so that it can be disposable.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a stretchable clothing fabric.

FIG. 2 is a cross-sectional view of a joint of a stretchable garment.

FIG. 3 is a sectional view of a bag portion of the stretchable garment.

[Explanation of symbols]

10: Fabric for stretchable clothing 10A, 10B, 10C, 10D: Parts made of fabric for stretchable clothing 11: Nonwoven fabric made of elastic fiber filaments 12: Evaporated film 13: Overlapping part (joining part)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI C23C 14/14 C23C 14/14 D

Claims (4)

[Claims] 1. A moisture-permeable nonwoven fabric made of elastic fiber filaments having a heat-melting property, wherein a contact portion between the filaments is fused, and a filament surface constituting one surface of the nonwoven fabric is a metal-deposited film. A stretchable garment fabric characterized by being coated. 2. The nonwoven fabric has a basis weight of 50 to 200 g / m ^2.
The stretchable garment fabric according to claim 1, which is: 3. A metal deposited film is formed by sputtering, has a thickness of 50 to 2000 mm and a surface resistance of 10
^The stretchable garment fabric according to claim 1, wherein the elastic garment fabric has a thickness of ⁷ to 10 ¹¹ Ω / cm ² . 4. A component of a garment to be worn on a human body, such as an outer garment, a sock, a glove, a hat, etc., is made of the stretchable garment cloth according to any one of claims 1 to 3, and a joint on the back side of the garment. A stretchable garment, wherein the vapor-deposited surfaces are overlapped so as to be in contact with each other and fused by ultrasonic heating, and the vapor-deposited surface constitutes a clothing surface.