JP2023167980A - Garment having charge suppressing function - Google Patents

Abstract

To exhibit a charge suppressing function by sewing a sewing tape with diagonally arranged conductive threads in a sewn portion of a garment.SOLUTION: A sewing tape 3 including a conductive thread 2 is sewn in the sewn portion of a garment 1 that covers a wearer, and the conductive thread 2 is arranged diagonally to a longer direction of the sewing tape 3. The sewing tape 3 can be sewn in the sewn portion of an armpit part and a crotch part of the garment 1, and also sewn in the sewn portion outside an arm part. The conductive thread 2 is arranged in the sewing tape 3 in a lattice form at intervals of 1 mm to 30 mm. A width of the sewing tape 3 can be 6 mm to 50 mm. The garment 1 can have a charge amount defined by JIS-T-8118:2001 of 0.6 μC/garment or less. The sewing tape 3 can have a voltage value measured by a friction-charged voltage measuring method defined in JIS-L-1094:2014 of 2000 V or less, a charge amount measured by a friction-charged charge amount measuring method of 7 μC/m2 or less, and a resistance value measured by a surface leakage resistance measuring method of 109 Ω or less.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to clothing such as protective clothing that has an antistatic function and covers the wearer.

Conventionally, protective clothing is known (Patent Document 1).
This protective clothing is composed of a non-woven fabric with an air permeability of 20 cm ³ /cm ² /sec or more and 150 cm ³ /cm ² /sec or less, and a non-woven fabric with an air permeability of 0 cm ³ /cm ² /sec or more and 19 cm ³ /cm ² /sec or less. Protective clothing with a hood combined with the hood, the hood having an opening at the center of the wearer's face, and having band-like members at the top of the opening and at the bottom of the left and right sides of the opening. However, the two band-like members are connected or configured to be able to be connected at the left and right temporal regions, respectively.

International Publication No. 2020/105443

However, the protective clothing described in Patent Document 1 is easily charged with static electricity when worn, and the wearer of the protective clothing may work at a work site where fine particles such as dust are suspended or where volatile solvents are handled. When this is done, it is necessary to prevent explosions caused by electrostatic discharge, so there is a need for the development of protective clothing that has an antistatic function.

In view of these points, an object of the present invention is to provide a garment that can exhibit an antistatic function by sewing a sewing tape in which conductive threads are arranged diagonally into the sewn portion of the garment.

A garment 1 according to the present invention is a garment that covers a wearer, and a sewing tape 3 containing a conductive thread 2 is sewn into a sewn portion of the garment. The first feature is that they are arranged diagonally with respect to the longitudinal direction.

A second feature of the garment 1 according to the present invention, in addition to the first feature, is that the sewing tape 3 is sewn into the sewing portions of the armpit and crotch portions of the garment.

A third feature of the garment 1 according to the present invention, in addition to the second feature described above, is that the sewing tape 3 is also sewn into the sewing part on the outside of the arm portion of the garment.

A fourth feature of the garment 1 according to the present invention is that, in addition to the first feature, the conductive threads 2 are arranged in a grid pattern with respect to the sewing tape 3 at intervals of 1 mm or more and 30 mm or less; The tape 3 has a width of 6 mm or more and 50 mm or less.

A fifth feature of the garment 1 according to the present invention is that, in addition to the first to fourth features above, the garment has a charge amount of 0.6 μC/wear or less as measured in accordance with JIS-T-8118:2001. There is a certain point.

A sixth feature of the garment 1 according to the present invention is that, in addition to the first to fourth features above, the sewing tape 3 has a voltage measured by a frictional charge voltage measurement method of JIS-L-1094:2014B method. The value is 2000V or less, the amount of charge measured by the triboelectric charge measurement method of JIS-L-1094:2014C method is 7μC/ ^m2 or less, and JIS-L-1094:2014 attached The resistance value measured by the surface leakage resistance measurement method of Book A satisfies at least one of the following conditions: 10 ⁹ Ω or less.

Due to these characteristics, by sewing the sewing tape 3 containing the conductive thread 2 into the sewn portion 1a of the garment 1, unlike Patent Document 1, it becomes difficult to be charged with static electricity even when the garment 1 is worn. Even when the wearer C of the garment 1 works at a work site where fine particles are floating, it can be said that the antistatic function for preventing explosions due to electrostatic discharge can be exhibited.
In addition to this, by arranging the conductive thread 2 diagonally with respect to the longitudinal direction 3L of the sewing tape 3, the sewing portion 1a into which the sewing tape 3 is sewn may have a curved shape. Even if the garment 1 has a bent part (a part that covers the joints of the wearer C such as elbows and knees), the sewing tape 3 can be sewn onto the fabric along the curves and bends of the sewing part 1a. (See Figures 4, 12, etc.).

Furthermore, by sewing the sewing tape 3 into the armpit region 1W and the crotch region 1M of the garment 1, the conductive thread 2 is attached to the armpit region 1W and the crotch region 1M, where the fabric rubs against each other and causes particular friction in the worn garment 1. The anti-static function can be demonstrated even more effectively.
Furthermore, by sewing the sewing tape 3 to the outer side of the arm portion 1U of the garment 1, the garment 1 can also be used for semiconductor work where a high antistatic function is required.

In addition, the conductive threads 2 are arranged in a grid pattern at intervals of 1 mm or more and 30 mm or less with respect to the sewing tape 3, and the width of the sewing tape 3 is set to 6 mm or more and 50 mm or less, or the clothing 1 is charged according to JIS-T-8118:2001. If the sewing tape 3 has a voltage value of 2000V or less by the frictional charge voltage measurement method of JIS-L-1094:2014, or a charge amount of 7μC/m by the frictional charge measurement method, the sewing tape 3 may ^An even higher antistatic function may be exhibited by setting the resistance value to 10 ⁹ Ω or less as determined by the surface leakage resistance measurement method.

According to the garment according to the present invention, by sewing a sewing tape in which conductive threads are diagonally arranged into the sewn portion of the garment, an antistatic function can be exerted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing a front view of clothing according to a first embodiment of the present invention. It is a photograph substituted for a drawing showing the conductive thread and sewing tape sewn into the sewing part of the lower armpit of the garment according to the first embodiment. It is a photograph substituted for a drawing showing the conductive thread and the sewing tape sewn into the sewing part on the inside of the arm part of the garment according to the first embodiment. It is a photograph substituted for a drawing showing conductive thread and sewing tape sewn into the sewing part inside the cuff of the garment according to the first embodiment. It is a photograph substituted for a drawing showing conductive thread and sewing tape sewn into the sewn part of the crotch part of the garment according to the first embodiment. It is a photograph substituted for a drawing showing the conductive thread and the sewing tape sewn into the sewing part on the inside of the leg part of the garment according to the first embodiment. It is a photograph substituted for a drawing showing the conductive thread and the sewing tape sewn into the sewing part inside the hem of the garment according to the first embodiment. This is a photograph substituted for a drawing showing the conductive thread and sewing tape before being sewn. FIG. 7 is a schematic diagram showing a front view of clothing according to a second embodiment of the present invention. It is a photograph substituted for a drawing showing the conductive thread and sewing tape sewn into the sewn part of the shoulder part of the garment according to the second embodiment. It is a photograph substituted for a drawing showing the conductive thread and sewing tape sewn into the sewing part on the outside of the arm part of the garment according to the second embodiment. It is a photograph substituted for a drawing showing conductive thread and sewing tape sewn into the sewing part on the outside of the cuff of the garment according to the second embodiment. 2 is a graph showing the amount of electric charge measured according to JIS-T-8118:2001 for clothes of Examples and clothes of Comparative Examples.

Embodiments of the present invention will be described below with reference to the drawings.
<Clothing 1>
1 to 12 a garment 1 according to the invention is shown.

This garment 1 covers the wearer C, and the composition of the garment 1 may include a jacket and pants connected together (coveralls), a jacket only, or only pants. , one set may consist of a separate jacket and pants.
In addition, the clothing 1 may include a hood 1F that covers the head of the wearer C.

The fabric of the garment 1 is, for example, a coverall that combines a jacket and pants, with one piece of fabric on each side that covers the wearer C's chest and the front sides of the left and right shoulders to the front sides of the left and right wrists. , one piece of fabric covers the upper back of wearer C, the back of each shoulder on the left and right to the back of each wrist on the left and right, and one piece of fabric covers wearer C's abdomen, waist, left and right legs, and each of the left and right ankles. One piece of fabric on each side, one or more pieces (such as three pieces) of fabric that covers wearer C's head (the fabric of hood 1F), and a zipper that opens and closes when worn from wearer C's chest to abdomen. It may be composed of one piece of belt-shaped fabric that covers the area.
In addition, the fabric of the garment 1 may be the fabric of each of the front body, back body, collar, sleeves, etc. of a jacket or pants.

The materials of these fabrics may be, for example, nonwoven fabrics, woven fabrics, knitted fabrics, films, etc. In particular, the structure of the woven fabrics and knitted fabrics is not particularly limited, but for example, As long as it is a woven fabric, it may be plain weave, twill weave, satin weave, etc.
The fabric may be made of polyester resin such as polyethylene terephthalate (PET) or polytrimethylene terephthalate (PTT), polyolefin resin such as polyethylene (PE) or polypropylene (PP), synthetic resin such as polyamide (nylon), or other materials. It may be made of natural materials such as wool, silk, or cotton, or may be used alone or in combination. For example, it may be made of a polyethylene film or a melt-blown filter sandwiched between two layers of polypropylene nonwoven fabric. do not have.

Clothes 1 are made by sewing tape 3 containing conductive thread 2 into a sewn portion 1a where the ends of adjacent fabrics are sewn together, or into a sewn portion 1a where the ends of one fabric are sewn together. It is rare.
In particular, as shown in FIG. 1, in the garment 1 according to the first embodiment of the present invention, the sewing tape 3 is sewn into the sewing portions 1a of the armpit region 1W and the crotch region 1M, which will be described later. ing.
Further, as shown in FIG. 9, in the garment 1 according to the second embodiment of the present invention, the sewing tape 3 is attached to the sewing portions 1a of the armpit portion 1W and the crotch portion 1M, which will be described later. It is also sewn into a sewn portion 1a on the outside of the arm portion 1U, which will be described later.

<Conductive thread 2>
As shown in Figures 1 to 12, the conductive thread 2 is a thread that has the property of conducting electricity, and is also called an antistatic thread. or may be made of metal such as stainless steel.
The conductive thread 2 may be a monofilament composed of one fiber or a multifilament composed of a plurality of fibers. When the conductive thread 2 is a multifilament, the number of filaments is, for example, 2. The number may be greater than or equal to 40, preferably greater than or equal to 2 and less than or equal to 30, and more preferably greater than or equal to 2 and less than or equal to 20 (such as 3).

The total fineness of the conductive yarn 2 may be, for example, 5 dtex or more and 200 dtex or less, preferably 10 dtex or more and 100 dtex or less, and more preferably 15 dtex or more and 50 dtex or less (such as 22 dtex), regardless of whether it is a monofilament or a monofilament. .
When the conductive yarn 2 is a multifilament, the single fiber fineness of each fiber may be, for example, 1 dtex or more and 50 dtex or less, preferably 3 dtex or more and 40 dtex or less, and more preferably 5 dtex or more and 30 dtex or less (such as 7.4 dtex).

<Sewing tape 3>
As shown in FIGS. 1 to 12, the sewing tape 3 is a tape-like material containing the above-mentioned conductive thread 2, and the conductive thread 2 is diagonally (so-called biased) with respect to the longitudinal direction 3L of the sewing tape 3. direction), and can be said to be bias tape.
In particular, as shown in FIG. 8, the configuration of the sewing tape 3 may be, for example, folded in two at the center in the width direction, and the sewing tape 3 may be folded in half at the center in the width direction, and the sewing tape 3 may be folded in two at the center in the width direction, and the sewing tape 3 may be folded in two at the center in the width direction. I don't care if it's sewn into it.
The angle α formed by the longitudinal direction 3L of the sewing tape 3 and the longitudinal direction of the conductive thread 2 is, for example, 10° or more and 80° or less, preferably 25° or more and 65° or less, and more preferably 35° or more and 55° or less (45°). ° etc.) (see Figures 2, 8, etc.).
The conductive threads 2 in the sewing tape 3 may be arranged, for example, in a grid pattern at predetermined intervals, or may be arranged in only one direction at predetermined intervals (in a streak or stripe pattern). .

In the sewing tape 3, the distance between the conductive threads 2 is, for example, 1 mm or more and 30 mm or less, preferably 2 mm or more and 20 mm or less, and more preferably 3 mm or more and 12 mm or less (2.5 mm, 5 mm, 10 mm, 17 mm, 18 mm, etc.). It may be.
The width of the sewing tape 3 may be, for example, 6 mm or more and 50 mm or less, preferably 10 mm or more and 40 mm or less, and more preferably 12 mm or more and 30 mm (such as 16 mm or 32 mm).

The material of the sewing tape 3 may be, for example, a woven fabric (woven fabric), a knitted fabric (knitted fabric), a non-woven fabric, a film, etc. In particular, the structure of the woven fabric or knitted fabric is not particularly limited, but for example, As long as it is a woven fabric, it may be plain weave, twill weave, satin weave, etc.
The sewing tape 3 may be made of polyester resin such as polyethylene terephthalate (PET) or polytrimethylene terephthalate (PTT), polyolefin resin such as polyethylene (PE) or polypropylene (PP), or synthetic resin such as polyamide (nylon). In addition, the conductive threads 2 may be made of natural materials such as wool, silk, and cotton, or may be used alone or in combination. It may be arranged in a lattice pattern, or it may be one in which a predetermined number of conductive threads 2 are woven into the warp or weft of the fabric, and the conductive threads 2 are arranged in a stripe pattern at predetermined intervals. .

<Sewn parts 1a such as lower armpit 1W>
As shown in FIGS. 1 to 4, the sewing tape 3 is sewn into the sewing portion 1a of the garment 1, such as the lower armpit portion 1W.
The sewn portion 1a of the armpit lower part 1W etc. means, for example, that the fabric of the garment 1 has one piece of fabric on each side that covers the wearer C's chest and the front side of each left and right shoulder to the front side of each right and left wrist. If there is one piece of fabric that covers the upper back side of C and the back side of each left and right shoulder to the back side of each left and right wrist, it should be covered from the armpit lower part 1W to the inside of the arm part 1U (lower side in Fig. 1). It means the sewn part 1a from the left and right armpits 1W to the inside of the cuff 1T (lower side in Figure 1), and more specifically, the end from the left and right armpit portions 1W to the inside of the left and right arm parts 1U to the inside of the left and right cuffs 1T. The sewn portion 1a may be inside the portion where the portions are sewn together into a cylindrical shape.
The left and right armpit portions 1W of the garment 1 are the portions of the garment 1 that cover the left and right armpits of the wearer C from below, and the left and right arm portions 1U of the garment 1 refer to the portions of the garment 1 that cover the left and right armpits of the wearer C from below. The left and right cuffs 1T of the garment 1 are the portions (sleeves) that cover the left and right arms of the wearer C, and the left and right cuffs 1T of the garment 1 are the portions of the garment 1 that cover the left and right wrists of the wearer C.
Since the sewing tape 3 mentioned above is sewn in so as to cover the sewing part 1a of the armpit lower part 1W, etc., the sewing tape 3 is in an exposed state (thread (excluding sewing thread) or other (not covered by parts, etc.).

The length of the sewing tape 3 of the sewn parts 1a such as the left and right armpit lower portions 1W may be approximately the same as the length from the left and right armpit lower portions 1W to the inside of the left and right cuffs 1T in the garment 1, or even if it is slightly shorter ( It may be from the left and right lower armpits 1W to the middle part of each left and right arm 1U (in front of the cuff 1T (see Figure 4), the elbow, etc.), or only the left and right lower armpits 1W, for example, It may be 20 cm or more and 90 cm or less, preferably 40 cm or more and 80 mm or less, and more preferably 60 cm or more and 70 cm or less (such as 65 cm).
That is, the sewing portion 1a of the armpit lower part 1W, etc., may be 40 cm or more and 180 cm or less, preferably 80 cm or more and 160 mm or less, and more preferably 120 cm or more and 140 cm or less (for example, a total of 130 cm on the left and right sides).

<Sewing part 1a such as crotch 1M>
As shown in FIGS. 1, 5 to 7, the sewing tape 3 is sewn into the sewing part 1a of the garment 1, such as the crotch area 1M.
The sewn portion 1a of the crotch area 1M, etc., is, for example, one piece of fabric on each side of the garment 1 that covers the wearer C's abdomen, waist, left and right legs, and left and right ankles. In this case, it means the sewn part 1a from the crotch 1M to the inside of each left and right leg 1K to the inside of each left and right hem 1A, and more specifically, from the left and right center crotch 1M to the inside of each left and right leg 1K. The sewn portion 1a may be a portion where the ends of the left and right hems 1A are sewn together to the inside of each hem 1A.
The crotch area 1M of the garment 1 is a portion of the garment 1 that covers the crotch of the wearer C from below, and the left and right legs 1K of the garment 1 are the portions of the garment 1 that cover the crotch of the wearer C from below. The left and right hems 1A of the garment 1 are the portions of the garment 1 that cover the left and right ankles of the wearer C.
Since the sewing tape 3 mentioned above is sewn in so as to cover the sewing part 1a of the crotch area 1M, etc., the sewing tape 3 is in an exposed state (thread (excluding sewing thread) or other (not covered by parts, etc.).

The length of the sewing tape 3 of the sewn part 1a of the crotch 1M etc. may be approximately the same as the length from the crotch 1M to the inside of each left and right hem 1A of the garment 1, or even if it is slightly shorter (from the crotch 1M to the left and right hem 1A). It may be up to the inside of each leg 1K (the front of the hem 1A (see Figure 7), the knee, etc.) or only the crotch 1M, for example, each length is 30 cm or more and 100 cm or less, preferably 50 cm or more and 90 mm or less. , more preferably 70 cm or more and 80 cm or less (such as 75 cm).
That is, the sewn portion 1a of the crotch 1M and the like may be 60 cm or more and 200 cm or less, preferably 100 cm or more and 180 cm or less, and more preferably 140 cm or more and 160 cm or less (for example, a total of 150 cm on the left and right sides).

<Sewn portion 1a on the outside of arm portion 1U>
As shown in FIGS. 9 to 12, the sewing tape 3 is sewn into the sewing portion 1a of the garment 1 on the outside of the arm portion 1U.
The sewn portion 1a on the outer side of the arm portion 1U means, for example, that the fabric of the garment 1 has one piece of fabric on each side that covers the chest of the wearer C and the front sides of the left and right shoulders to the front sides of the left and right wrists. If there is one piece of fabric that covers the upper back of Person C and the back side of each left and right shoulder to the back side of each right and left wrist, from the outer lower edge of the left and right sides of the hood 1F (or collar) to the left and right side. This refers to the sewn portion 1a extending from the upper side of each shoulder 1S to the outer side of each left and right arm portion 1U (upper side in FIG. 9) to the outer side of each left and right cuff 1T (upper side in FIG. 9), and more specifically, to the hood 1F. The outer side of the cylindrical part is sewn from the lower left and right outer ends of the (or collar) to the upper sides of the left and right shoulders 1S and the outer sides of the left and right arm parts 1U to the outer sides of the left and right cuffs 1T. It may be part 1a.
The left and right shoulder portions 1S of the garment 1 are portions of the garment 1 that cover the left and right shoulders of the wearer C from above.
Since the above-mentioned sewing tape 3 is sewn in so as to cover the sewing part 1a such as the outside of the arm part 1U, the sewing tape 3 is in an exposed state (thread (excluding sewing thread), other (not covered by parts, etc.).

The length of the sewing tape 3 of the sewing part 1a on the outside of the left and right arm parts 1U, etc. of the garment 1 is as follows: It may be approximately the same length as the upper side of the shoulder part 1S and the outside of each left and right arm part 1U to the outside of each left and right cuff 1T), or even if it is slightly shorter (from the lower side of each left and right outside of the hood 1F (or collar) to the outside of each left and right cuff 1T). From the outside of each arm 1U (the front of the cuff 1T, the elbow, etc.), or conversely, from the outside of each left and right cuff 1T to the midway part of each left and right arm 1U (the front of the hood 1F (or collar)) For example, it may be 40 cm or more and 110 cm or less, preferably 60 cm or more and 100 mm or less, and more preferably 80 cm or more and 90 cm or less (85 cm, etc.). .
That is, the sewing portion 1a on the outside of the arm portion 1U may be 80 cm or more and 220 cm or less, preferably 120 cm or more and 200 cm or less, and more preferably 160 cm or more and 180 cm or less (for example, a total of 170 cm on the left and right sides).

The sewing tapes 3 sewn into the plurality of places described above have a total length of, for example, 80 cm or more and 600 cm or less, preferably 150 cm or more and 540 mm or less, and more preferably 250 cm or more and 480 cm, in one garment 1. It may be less than (280 cm, 450 cm, etc.).

<Charge amount of clothing 1, etc.>
In the entire garment 1 described above, the upper limit of the electric charge measured according to JIS-T-8118:2001 is, for example, 0.60 μC/wear or less, preferably 0.58 μC/wear or less, and more preferably 0. The lower limit may be, for example, 0.00 μC/cloth or more, preferably 0.01 μC/cloth or more, and more preferably 0.05 μC/cloth or more (0.07 μC/cloth or less). It may be 0.52 μC/wear, 0.55 μC/wear, etc.). Note that "μC/clothing" is a unit indicating the amount of charge per garment.
Before measuring the amount of electric charge in accordance with JIS-T-8118:2001, the garment 1 and friction cloth to be measured are washed (washing pretreatment), and this washing is performed in accordance with JIS-L-0217:1995. According to washing method number 103, the washing process from washing to rinsing and dehydration is repeated 5 times, followed by rinsing with water for 20 minutes once, and then hanging to dry.
Furthermore, in the present invention, the "amount of charge measured in accordance with JIS-T-8118:2001" includes the amount of charge measured in accordance with the provisions of JIS-T-8118:2001, and also includes, for example, the amount of charge measured in accordance with JIS-T-8118:2001. 8118:2001, the amount of electric charge was measured by changing the "several minutes of dehydration" performed after one 20-minute water rinse in the washing pretreatment to hanging drying, and the amount of charge measured by changing the friction cloth to cotton or wool. It also includes the amount of charge measured in accordance with JIS-T-8118:2001, such as the amount of charge measured in accordance with JIS-T-8118:2001.

In addition, for the entire garment 1, the frictional charge voltage may be measured using a predetermined measuring device, for example, using an electrostatic potential measuring device “STATIRON DZ4” manufactured by Shishido Electrostatic Co., Ltd. as the measuring device. In the case of a measured voltage value (for example, the difference between the initial value and the value after rubbing with a friction cloth a predetermined number of times), the upper limit thereof is, for example, 4500 V or less, preferably 4000 V or less, and more preferably It may be 3000V or less, and its lower limit may be, for example, 0V or more, preferably 10V or more, and more preferably 50V or more.

<Voltage value, charge amount, and resistance value of sewing tape 3>
The sewing tape 3 described above satisfies at least one of the following <1> to <3>.
<1> In the sewing tape 3 described above, the upper limit of the voltage value measured by the frictional charging voltage measurement method of JIS-L-1094:2014B is, for example, 2000 V or less, preferably 1500 V or less, and more preferably may be 1000V or less, and its lower limit may be, for example, 0V or more, preferably 10V or more, and more preferably 50V or more.
In addition, in the present invention, the "voltage value measured by the frictional charge voltage measurement method of JIS-L-1094:2014B method" refers to the voltage value measured according to the provisions of the frictional charge voltage measurement method of JIS-L-1094:2014B method. For example, the voltage value measured in the vertical (longitudinal) direction and/or the horizontal (latitudinal) direction of the test piece in the frictional charge voltage measurement method of JIS-L-1094:2014B method. , voltage values measured by replacing the wool (No. 1-1) and cotton (No. 3-1) specified in JIS-L-0803:2011, which are friction cloths, with acrylic and nylon, etc., JIS-L-1094: It also includes voltage values measured according to the frictional charging voltage measurement method of the 2014B method.
In addition, the frictional charging voltage in the sewing tape 3 may be measured not only by the frictional charging voltage measurement method of the JIS-L-1094:2014B method described above, but also by a voltage value measured using a predetermined measuring device, for example. In the case of a voltage value measured using the above-mentioned "STATIRON DZ4" as a measuring device (for example, the difference between the initial value and the value after rubbing with a friction cloth a predetermined number of times), the upper limit value is: For example, it may be 900V or less, preferably 800V or less, more preferably 600V or less, and the lower limit thereof may be, for example, 0V or more, preferably 5V or more, and still more preferably 10V or more.

<2> In the sewing tape 3 described above, the upper limit of the charge amount measured by the triboelectric charge amount measurement method of JIS-L-1094:2014C is, for example, 7 μC/m ² or less, preferably 5 μC. /m ² or less, more preferably 3 μC/m ² or less, and the lower limit thereof is, for example, 0.0 μC/m ² or more, preferably 0.3 μC/m ² or more, and even more preferably 0.6 μC / ^m2 or more may be sufficient.
In addition, in the present invention, "the amount of electric charge measured by the triboelectric charge amount measurement method of JIS-L-1094:2014C method" refers to the amount of charge measured by the triboelectric charge amount measurement method of JIS-L-1094:2014C method. It includes the electric charge measured in the vertical (longitudinal) direction and/or horizontal (latitudinal) direction of the test piece in the triboelectric charge amount measurement method of JIS-L-1094:2014C method. The JIS-L -1094:2014C method, including the amount of charge measured according to the triboelectric charge amount measurement method.

<3> In the sewing tape 3 described above, the resistance value measured by the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A has an upper limit of, for example, 1.0×10 ⁹ Ω or less. , preferably 0.5×10 ⁹ Ω or less, more preferably 1.0×10 ⁸ Ω (0.1×10 ⁹ Ω) or less, and the lower limit thereof is, for example, 0 Ω (0.0 ×10 ⁰ Ω) or more, preferably 0.5 Ω (0.5 × 10 ⁰ Ω) or more, more preferably 1.0 Ω (1.0 × 10 ⁰ Ω) or more.
In addition, in the present invention, "the resistance value measured by the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A" refers to the "resistance value measured by the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A". Including the resistance value measured as specified, for example, in the vertical (longitudinal) direction and/or horizontal (latitudinal) direction of the test piece in the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A. Measured resistance values also include resistance values measured in accordance with the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A.

<Test 1>
In Test 1 of the present invention, Examples 1-1 and 2 and Comparative Examples 1-1 and 2 were created for the garment 1 described so far, and these Examples and Comparative Examples were tested for the entire garment 1. Check the amount of charge as described below.
First, Examples 1-1 and 2 and Comparative Examples 1-1 and 2 will be explained in detail.

<Example 1-1>
The structure of the garment 1 of Example 1-1 is the first embodiment shown in FIG. The conductive thread 2 is arranged diagonally with respect to the longitudinal direction of the sewing tape 3, and the sewing tape 3 is attached to the sewing part 1a of the garment 1 such as the armpit lower part 1W (from the left and right armpit lower parts 1W to the inside of the left and right arm parts 1U). The sewn parts 1a) are sewn together in a cylindrical shape from the ends to the inside of each left and right cuff 1T, and the sewn parts 1a such as the crotch 1M (from the left and right center crotch 1M to the inside of each left and right leg 1K) It is sewn into the sewn portion 1a) where the ends of the left and right hems 1A are sewn together to the inside. In Example 1-1, the sewing tape 3 is not sewn into the sewing portion 1a of the garment 1, such as the outside of the arm portion 1U.
Regarding the sewing tape 3 in Example 1-1, in detail, the conductive threads 2 are arranged in a grid pattern at intervals of 2.5 mm on the sewing tape 3, and the sewing tape 3 is a woven fabric with a width of 16 mm. The total length of sewing tape 3 in one garment 1 is 280 cm.
Furthermore, the sewing tape 3 of Example 1-1 has a resistance value of 1.8×10 ⁸ in the vertical and horizontal directions as measured by the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A. Ω, and the voltage value measured by the frictional charge voltage measurement method of JIS-L-1094:2014B is 210V in the vertical direction and 260V in the horizontal direction when the friction cloth is made of cotton. When the cloth is wool, the voltage is 91V in the vertical direction and 360V in the horizontal direction. In some cases, it is 1.0 μC/m ² in the vertical direction and 0.9 μC/m ² in the horizontal direction, and when the friction cloth is nylon, it is 0.9 μC/m ² in the vertical direction and 0.9 μC/m 2 in the horizontal direction. It is 1.1μC/ ^m2 .

<Example 1-2>
The structure of the garment 1 of Example 1-2 is the second embodiment shown in FIG. Sewn portion 1a (the ends from the bottom of the left and right outside of the hood 1F (or collar) to the upper side of each left and right shoulder 1S and the outside of each left and right arm 1U to the outside of each left and right cuff 1T are made into a cylindrical shape) It is also sewn into the sewn part 1a).
Therefore, the sewing tape 3 in Example 1-2 differs from the sewing tape 3 in Example 1-1 only in that its total length is 450 cm.

<Comparative example 1-1>
The configuration of Comparative Example 1-1 differs from Example 1-1 only in that the sewing tape 3 containing the conductive thread 2 is not sewn in at all.

<Comparative example 1-2>
The structure of Comparative Example 1-2 differs from that in Example 1-1 in that the sewing tape 3 containing the conductive thread 2 is not sewn in at all, and that the antistatic agent (surfactant) complies with the European standard "TS EN1149-". The difference is that antistatic processing was applied so that the measured surface resistance value was 1.0×10 ⁹ Ω.

In Test 1, the results of measuring the amount of charge in accordance with JIS-T-8118:2001 for Examples 1-1 and 2 and Comparative Examples 1-1 and 2 described above are shown in Table 1 and Figure 13 below. .
Here, for Examples 1-1 and 2 and Comparative Examples 1-1 and 2, before measuring the amount of charge according to JIS-T-8118:2001, washing ( Washing is performed in accordance with washing method number 103 specified in JIS-L-0217:1995, washing, rinsing, and spin-drying are repeated 5 times, followed by water injection for 20 minutes. After rinsing once, line drying was performed. The friction cloth is made of nylon and acrylic as specified in JIS-T-8118:2001.

<Evaluation of Test 1>
From Table 1 and FIG. 13, the amount of electric charge measured in accordance with JIS-T-8118:2001 for clothes 1 of Examples 1-1 and 2 is 0.60 μC/ The values are "0.55 μC/wear", "0.07 μC/wear", "0.55 μC/wear" and "0.52 μC/wear", which are less than 0.5 μC/wear, and exhibit antistatic function.
On the other hand, in Comparative Example 1-1, since the sewing tape 3 containing the conductive thread 2 is not sewn in at all, the amount of electric charge measured according to JIS-T-8118:2001 is different from that when the friction cloth is acrylic. "1.35 μC/wear" is "1.10 μC/wear" when the friction cloth is nylon, which exceeds 0.60 μC/wear, and there is no antistatic function.
Regarding Comparative Example 1-2, although the sewing tape 3 containing the conductive thread 2 was not sewn in at all, the surface resistance value measured with "TS EN1149-1" using an antistatic agent was 1.0. × 10 ⁹ Ω, so if the friction cloth is made of acrylic, the value is 0.55 μC/wear or less, which is 0.60 μC/wear or less, but if the friction cloth is made of nylon. In the case of "0.76 μC/wear", it exceeds 0.60 μC/wear, and depending on the type of friction cloth, the antistatic function is not fully exhibited. In addition, in Comparative Example 1-2, in which an antistatic agent was added, for example, in an environment with extremely low humidity, the antistatic function due to the hydrophilic group of the antistatic agent (surfactant) is hardly exhibited. It can be said that Examples 1-1 and 2 (the present invention) in which the sewing tape 3 containing the conductive thread 2 is sewn into the sewn portion 1a of the garment 1 are excellent.
In addition, there have been protective clothing using woven or knitted fabrics in which conductive threads are woven or knitted as a function of suppressing static electricity according to the conventional technology, but since a large amount of the fabrics are used, there is a problem in that the cost is high. On the other hand, in Examples 1-1 and 2 (the present invention), since the conductive thread 2 is arranged only on the sewing tape 3, the amount of fabric containing the conductive thread can be drastically reduced, resulting in cost reduction. You can also plan.

<Tests 2-4>
In Tests 2 to 4 of the present invention, Examples 2-1 to 4, which become sewing tape 3, were prepared, and these Examples were tested according to the frictional charge voltage measurement method of method B in JIS-L-1094:2014. The voltage value measured by the method, the amount of charge measured by the triboelectric charge measurement method of Method C, and the resistance value measured by the surface leakage resistance measurement method of Appendix A are examined.
First, Examples 2-1 to 2-4 will be explained in detail.

<Example 2-1>
The structure of Example 2-1 is a fabric in which conductive threads 2 are arranged in a striped manner only in the vertical (warp) direction at intervals of 5.0 mm, the threads other than the conductive threads 2 are polyester, and the texture of the fabric is It is twill weave (2/1 twill). The size of Example 2-1 is approximately 29.7 cm in length and approximately 26.0 cm in width, so that sewing tape 3 is formed by cutting Example 2-1 to a predetermined width. It can also be said that it is done.
Further, the blending rate of the conductive thread 2 is 0.6%. Here, the mixing ratio of the conductive thread 2 is the mass % of the conductive thread 2 in the sewing tape 3.

<Example 2-2>
The structure of Example 2-2 is that in Example 2-1, the conductive threads 2 are fabrics arranged in a lattice shape at intervals of 5.0 mm, and the blend ratio of the conductive threads 2 is 1.1%. The points are different.

<Example 2-3>
The structure of Example 2-3 is that in Example 2-1, the conductive threads 2 are fabrics arranged in a lattice shape at intervals of 2.5 mm, and the blend ratio of the conductive threads 2 is 1.9%. The points are different.

<Example 2-4>
The structure of Example 2-4 differs from Example 2-1 in that it is a fabric in which the conductive threads 2 are arranged in a lattice shape at intervals of about 2.4 mm, and the blending rate of the conductive threads 2 is 2.1%. They are different in one respect.

<Test 2>
In Test 2, the voltage values of Examples 2-1 to 2-3 described above were measured using the frictional charging voltage measuring method according to JIS-L-1094:2014B method, and the results are shown in Table 2 below.
The friction cloth was made of cotton and wool, the test environment was a room temperature of 20°C, and a humidity (relative humidity) of 40%. Collected along.

<Evaluation of Test 2>
From Table 2, in Examples 2-1 to 2-3, even if the voltage value measured by the frictional charge voltage measuring method of JIS-L-1094:2014B method is large, the friction cloth in Example 2-1 is If it is smaller, it is "91V" when the friction cloth is wool in Example 2-3, so all of them are 2000V or less. It can be said that by sewing the sewing tape 3 into the sewn portion 1a of the garment 1, the garment 1 can be provided with an antistatic function.

<Test 3>
In Test 3, for Examples 2-2 to 2-4 described above, the amount of charge was measured using the triboelectric charge amount measurement method of JIS-L-1094:2014C method, and the results are shown in Table 3 below.
The friction cloth was made of nylon and acrylic, the test environment was a room temperature of 20°C, and a humidity (relative humidity) of 40%. Collected along.

<Evaluation of Test 3>
From Table 3, in Examples 2-2 to 4, even if the amount of charge measured by the triboelectric charge measurement method of JIS-L-1094:2014C is large, the friction cloth in Example 2-2 is In the case of nylon, it is "1.5μC/m ² ", and if it is smaller, it is "0.7μC/m ² " in Example 2-4 when the friction cloth is nylon, so in both cases it is 7.0μC/m 2 . m ² or less, and it can be said that by sewing the sewing tape 3 made from Examples 2-2 to 2-4 into the sewn portion 1a of the garment 1, the garment 1 can be provided with an antistatic function.

<Test 4>
In Test 4, the resistance value of Example 2-3 described above was measured using the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A, and the results are shown in Table 4 below.
The test environment was a room temperature of 20° C. and a humidity (relative humidity) of 40%, and test pieces were taken along the warp direction of the fabric of Example 2-3.

<Evaluation of Test 4>
From Table 4, in Example 2-3, the resistance value measured by the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A is "1.8 x 10 ⁷ Ω", so 1 For example, by sewing the sewing tape 3 made in Example ^2-3 into the sewn portion 1a of the garment 1, the garment 1 can have an antistatic function. I can say that.
Incidentally, the resistance value of Example 2-3 is also lower than the standard "1.0×10 ⁹ Ω" when the surface resistance value is measured using "TS EN1149-1" mentioned above.

<Others>
The present invention is not limited to the embodiments described above. Each configuration or the overall structure, shape, dimensions, etc. of the garment 1 etc. can be changed as appropriate in accordance with the spirit of the present invention.
It is sufficient that the sewing tape 3 containing the conductive thread 2 is sewn into at least a part of the sewn portion 1a of the garment 1. For example, in the garment 1, the sewing tape 3 containing the conductive thread 2 is It is sewn only to the sewn part 1a such as the armpit part 1W, it is sewn only to the sewn part 1a such as the above-mentioned crotch part 1M, or it is sewn only to the sewn part 1a such as the outside of the arm part 1U mentioned above. Alternatively, it may be sewn into only the above-mentioned crotch area 1M and the outside of the arm part 1U, or it may be sewn into only the above-mentioned armpit area 1W and the outside of the arm part 1U.

The garment 1 may be provided with a sewing tape 3 containing the conductive thread 2 in the sewing portions 1a other than the armpit portion 1W, the crotch portion 1M, and the outside of the arm portion 1U, for example. In the case where the hood 1F is made of the above-mentioned fabric, if the hood 1F has a plurality of fabrics, the sewn portion 1a formed by sewing together the ends of the plurality of hood 1F fabrics includes the conductive thread 2. The tape 3 may be sewn in, and the fabric of the hood 1F and the fabric that covers the chest of wearer C and the front side of each shoulder on the left and right to the front side of each wrist on the left and right may be sewn in. A sewing tape 3 containing a conductive thread 2 is sewn into the sewing part 1a where the ends of a piece of fabric covering the upper back side of C and the back side of each left and right shoulder to the back side of each left and right wrist are sewn together. It doesn't matter if you stay there.
Furthermore, clothing 1 has one piece of fabric on each side, covering the wearer C's chest and the front side of each of the left and right shoulders to the front side of each left and right wrist, and the fabric that covers the wearer C's upper back and the back side of each left and right shoulder. One piece of fabric covers the back of each left and right wrist, and one piece of fabric covers each side of wearer C's abdomen, waist, and left and right ankles, and the ends are sewn together. A sewing tape 3 containing a conductive thread 2 may be sewn into the sewing part 1a, and the fabric covering from the abdomen of the wearer C to the waist and left leg to the left ankle and the abdomen of the wearer C may be sewn into the sewing part 1a. The sewing tape 3 containing the conductive thread 2 may be sewn into the sewing part 1a where the ends of the fabric covering the waist, right leg and right ankle are sewn together.
In addition, if the garment 1 is composed of a front body and a back body, the ends of the garment 1 from the left and right underarm portions 1W to the outside of the left and right torso to the outside of each left and right hem are sewn together. A sewing tape 3 containing a conductive thread 2 may be sewn into the sewn part 1a, and if the pants of the garment 1 are composed of a front body and a back body, a sewing tape 3 containing a conductive thread 2 may be sewn into the sewn part 1a. The sewing tape 3 containing the conductive thread 2 may be sewn into the sewing portion 1a, which is formed by sewing together the ends of the left and right leg portions 1K to the outside of the left and right hems 1A.

Clothing 1 is configured such that rubber is provided on the front edge of hood 1F, and the front side of hood 1F slightly covers the face of wearer C (the front opening of hood 1F is squeezed to make it smaller). Also good.
The garment 1 may be configured such that rubber is provided around the torso and the torso is squeezed to make it smaller (so that the torso is caught on the waist of the wearer C).
The clothing 1 does not need to have the hood 1F.
The sewn part 1a of the garment 1 is not only a part where the ends of the fabric are sewn together as described above, but also a part where the ends are folded back one or more times and then sewn together, or a part where the ends of the fabric are overlapped. It may also be a portion that has been heat-pressed to have an uneven surface.
The sewing thread (sewing thread, sewing thread) in the sewing part 1a of the garment 1 does not have to be the conductive thread 2, and when sewing the sewing tape 3 into the sewing part 1a, the sewing thread is approximately inserted in the longitudinal direction 3L of the sewing tape 3. You can follow along.
In the garment 1, the belt-shaped fabric that extends from the chest to the abdomen of the wearer C and covers the zipper part that opens and closes when worn is attached to the back side of the fabric so that it sticks to the torso of the garment 1 and keeps the zipper part covered. Double-sided tape may be provided.
The mixing ratio of the conductive thread 2 in the sewing tape 3 is not particularly limited, but its lower limit is, for example, 0.1% or more, preferably 0.3% or more, more preferably 0.5% or more, or 1. It may be 5% or more, and its upper limit may be, for example, 60% or less, preferably 50% or less, and more preferably 40% or less or 30% or less.
The voltage values measured using the wearer C wearing the garment 1 described above and the above-mentioned "STATIRON DZ4" will be described below.

<Wearer C>
As shown in FIGS. 1 and 9, the wearer C is a person who wears the clothing 1 described above, and can also be said to be a user of the clothing 1.
There are no restrictions on wearer C's physique (height, weight, body shape), gender, age, etc., and wearer C may work at work sites where fine particles such as dust are suspended, at sites where volatile solvents are handled, or in semiconductor manufacturing It may be a worker who works in a clean room for medical purposes, or a medical worker such as a doctor or nurse who performs medical treatment, or a worker at a company, school, restaurant, or other organization. There are no particular restrictions, regardless of age or gender, such as those belonging to a family, or those from an ordinary household.

<Test A>
In Test A, the results of the voltage values measured using the electrostatic potential measuring instrument "STATIRON DZ4" manufactured by Shishido Electrostatic Co., Ltd. described above for Example 1-2 and Comparative Example 1-1 described above in Test 1 were measured. , shown in Table A below.
Here, in the measurement using "STATIRON DZ4", the initial value was first measured, and then the fabric surface of the clothes of Example 1-2 and Comparative Example 1-1 was rubbed five times from top to bottom with a rubbing cloth. The fabric is rubbed and the voltage value is measured three times with the measuring device 3 cm away from the fabric surface, and the value measured the third time is taken as the value after rubbing. The difference between this value after friction and the initial value was defined as the voltage value measured in Test A. Note that the initial value and the value after friction may be negative, but this is simply due to being charged to a negative potential, and the voltage value is the absolute value of the difference between the value after friction and the initial value. Take. The friction cloth was made of nylon and acrylic, and the test environment was a room temperature of 26° C. and a humidity of 40%.

<Evaluation of Test A>
From Table A, for garment 1 of Example 1-2, the voltage value measured using "STATIRON DZ4" is "4070V" or "1980V" below 4500V, regardless of whether the friction cloth is acrylic or nylon. Demonstrates antistatic function.
On the other hand, in Comparative Example 1-1, since the sewing tape 3 containing the conductive thread 2 is not sewn in at all, the voltage value measured using "STATIRON DZ4" is "10010V" when the friction cloth is acrylic. This significantly exceeds 4,500V, and even when the friction cloth is made of nylon, it exceeds 4,610V, which is 4,500V, and it can be said that there is no antistatic function.

<Test B>
In Test B, Examples B-1 to B-4, which are sewing tapes 3, and Comparative Example B are prepared, and the voltage values measured using "STATIRON DZ4" are examined for these Examples and Comparative Example.
First, Examples B-1 to B-4 and Comparative Example B will be explained in detail.

<Example B-1>
The structure of Example B-1 is a fabric in which conductive threads 2 are arranged in a grid pattern at intervals of 2.5 mm, and the threads other than the conductive threads 2 are T/C (polyester and cotton blend yarn). The texture of the fabric is weather (plain weave). The size of Example B-1 is a strip having a width of 16 mm and a length of 74.5 cm, so that it can be said to be the sewing tape 3 as it is.

<Example B-2>
The structure of Example B-2 is a woven fabric in which the conductive threads 2 are arranged in a lattice shape at intervals of 5.0 mm, the threads other than the conductive threads 2 are T/C, and the texture of the woven fabric is plain weave. The size of Example B-2 is approximately 29.7 cm in length and approximately 26.0 cm in width, and the sewing tape 3 is formed by cutting Example B-2 to a predetermined width. It can also be said that it is done.

<Example B-3>
The structure of Example B-3 is a woven fabric in which conductive threads 2 are arranged in a lattice pattern at intervals of 10.0 mm, the threads other than the conductive threads 2 are T/C, and the texture of the woven fabric is plain weave. The size of Example B-3 is approximately 29.7 cm in length and approximately 26.0 cm in width, and sewing tape 3 is formed by cutting Example 2-3 to a predetermined width. It can also be said that it is done.

<Example B-4>
The structure of Example B-4 is a woven fabric in which conductive threads 2 are arranged in a lattice pattern at intervals of 17.0 mm, the threads other than the conductive threads 2 are T/C, and the texture of the woven fabric is plain weave. The size of Example B-4 is approximately 29.7 cm in length and approximately 26.0 cm in width, and the sewing tape 3 is formed by cutting Example B-4 to a predetermined width. It can also be said that it is done.

<Comparative example B>
The configuration of Comparative Example B differs from Example B-1 in that no conductive thread 2 is disposed (not included) and the size is approximately 29.7 cm vertically and approximately 26.0 cm horizontally. It's different.

In Test B, the results of voltage values measured using the above-mentioned "STATIRON DZ4" for the above-mentioned Examples B-1 to B-4 and Comparative Example B are shown in Table B below.
Here, in the measurement using "STATIRON DZ4", as in Test A, the initial value was first measured, and then the fabric surface in Examples B-1 to B-4 and Comparative Example B was measured in the vertical (warp) direction. 5 times with a friction cloth, and immediately after the friction, the voltage value was measured 3 times with the measuring device 3 cm away from the surface of the fabric, and the value measured on the 3rd time was taken as the value after the friction. be the value of The difference between this value after friction and the initial value was defined as the voltage value measured in Test B. Note that the initial value and the value after friction may be negative, but this is simply due to being charged to a negative potential, and the voltage value is the absolute value of the difference between the value after friction and the initial value. Take. The friction cloth was made of nylon and acrylic, and the test environment was a room temperature of 23° C. and a humidity of 43%. Before conducting Test B, Examples B-1 to B-4 and Comparative Example B were washed.

<Evaluation of Test B>
From Table B, in Examples B-1 to B-4, even if the voltage value measured using "STATIRON DZ4" is large, it is "780V" when the friction cloth is nylon in Example B-1, and it is small. For example, since the friction cloth in Example B-3 is "20V" when the friction cloth is made of acrylic, the voltage is 900V or less in all cases, and the sewing tape 3 of Example B-1 and those made from Examples B-2 to 4 are It can be said that by sewing the sewn tape 3 into the sewn portion 1a of the garment 1, the garment 1 can be provided with an antistatic function.
On the other hand, since Comparative Example B does not contain any conductive thread 2, the voltage value measured using "STATIRON DZ4" exceeds 900V at "1000V" when the friction cloth is made of acrylic. In the case of nylon, the voltage is 2040V, which significantly exceeds 900V, and even if the tape-like material made from Comparative Example B is sewn into the sewn parts of clothing, the clothing will still have an antistatic function. I can't.

The clothing according to the present invention is useful not only for protective clothing worn when working at work sites where fine particles such as dust are suspended or where volatile solvents are handled, but also for work in clean rooms for semiconductor manufacturing, etc. These include work clothes worn during medical procedures, isolation gowns worn when performing medical procedures, uniforms for companies, schools, restaurants, and other organizations, and private clothes for members of ordinary households. It can also be used as any type of clothing, such as disposable clothing that can be worn only once, or clothing that can be washed and worn multiple times.

1 Clothing 2 Conductive thread 3 Sewing tape

Claims (6)

A garment that covers the wearer,
A sewing tape (3) containing a conductive thread (2) is sewn into the sewing part of the garment,
A garment characterized in that the conductive thread (2) is arranged diagonally with respect to the longitudinal direction of the sewing tape (3). The garment according to claim 1, wherein the sewing tape (3) is sewn into the sewing portions of the armpit and crotch portions of the garment. 3. The garment according to claim 2, wherein the sewing tape (3) is also sewn into a sewing part on the outside of the arm part of the garment. The conductive thread (2) is arranged in a grid pattern with respect to the sewing tape (3) at intervals of 1 mm or more and 30 mm or less,
The garment according to claim 1, wherein the sewing tape (3) has a width of 6 mm or more and 50 mm or less. 5. The garment according to claim 1, wherein the garment has a charge amount of 0.6 μC/clothing or less as measured in accordance with JIS-T-8118:2001. The sewing tape (3) is
The voltage value measured by the frictional charging voltage measurement method of JIS-L-1094:2014B method is 2000V or less,
The amount of electric charge measured by the triboelectric charge amount measurement method of JIS-L-1094:2014C method is 7 μC/m ² or less, and
Claim 1 characterized in that the resistance value measured by the surface leakage resistance measurement method of JIS-L-1094:2014 Annex A satisfies at least one of the following conditions: 10 ⁹ Ω or less - Clothes described in any one of 4.