First, anti-static overalls introduce <br> <br> anti-static overalls mainly used in electronics, optical instruments, pharmaceuticals, microbial engineering, precision instruments, petroleum, petrochemical, chemical, refining and other industries, with a clean and antistatic properties In the case of special work clothes, the cloth is generally a synthetic fiber fabric with a woven conductive thread. The anti-static clothing that meets GB12014-2009 is designed to prevent electrostatic accumulation of clothing and use anti-static fabrics for sewing fabrics. It is suitable for use in static sensitive locations or in fire or explosion hazardous locations. The production process of the antistatic fabric used is mainly when the textile is used, and the antistatic fiber or the antistatic synthetic fiber made of a conductive material made entirely or partially of metal or organic material is mixed at equal intervals or evenly, or the two are mixed and interwoven. .
Between the two, electrostatic hazards <br> <br> operator clothing produced in the normal production activities, clothing worn between the outside surface of the medium (such as countertops, chair surfaces, tools, appliances, etc.), layers of clothes Between the underwear and the skin, between the sole and the floor during walking, the clothes and shoes are charged due to frequent contact separation and friction. The local static charge of clothing and shoes gradually spreads to the entire surface according to the dispersion law of the charge on the medium, forming a certain static voltage on the garment when it reaches equilibrium. Of course, because the human body is a good conductor, the charging of the clothing will cause the body's skin to be electrified due to electrostatic induction, and it will also form a certain static voltage. There are then two possible discharge paths for the operator: one is the discharge between the finger (skin) and the ground conductor, and the other is the discharge between the work clothes and the ground conductor. Both of these discharges can cause damage to electrostatically sensitive devices.
When the human body performs various activities, the static voltage value on the clothing has greatly exceeded the electrostatic discharge damage threshold of many electrostatic sensitive devices, and it may cause damage to the sensitive device when touching or approaching these components. It is generally believed that wearing cotton overalls can prevent static electricity from accumulating. Actually, this view has one-sidedness. It can only be basically achieved when the relative humidity of the air is higher than 50%. However, when the relative humidity is low, the amount of charge of pure cotton products increases significantly. Tests have shown that when the relative humidity is lower than 30%, the charge of cotton fabrics is comparable to that of polyester, and when the relative humidity is lower than 20%, the charge of cotton fabrics is even higher than that of some chemical fabrics. Therefore, in a dry climate, it cannot be expected that pure cotton products can be used to eliminate electrostatic hazards in garments under any circumstances. Therefore, in order to effectively prevent electrostatic discharge hazard of the human body, operators must wear anti-static overalls.
Third, anti-static clothing anti-static overalls principle <br> <br> means to prevent the accumulation of static electricity on clothing, anti-static fabric to fabric and sewing clothes. The antistatic fabric is a fabric formed by mixing electrically conductive fibers or antistatic synthetic fibers or a mixture of both of them at substantially equal intervals or evenly during spinning. The term “conductive fiber†refers to a generic name for a fiber made entirely or partially of a conductive material or a sub-conductive material that uses a metal or an organic material, and has a volume resistivity Ïv 介于between 104 and 109 Ω·cm. According to the distribution of the conductive component in the fiber, the conductive fiber can be divided into three types: a conductive component uniform type, a conductive component overlay type, and a conductive component composite type. At present, the vast majority of anti-static fabrics are made of conductive fibers, and in particular, composites of conductive components are used, that is, composite fibers are the most used. The antistatic clothing made by adding conductive fibers to chemical fiber fabrics is based on the mechanism of charge leakage and neutralization. When grounded, the static electricity on the fabric, in addition to being neutralized by the corona discharge of the conductive fibers, can also be discharged via the conductive fibers to the ground; when not grounded, the electricity is eliminated by means of the weak corona discharge of the conductive fibers. Practice has shown that anti-static overalls can effectively inhibit static clothing, eliminate or reduce the harm of electrostatic discharge.
Fourth, anti-static overalls testing equipment ZF-611 fabric frictional electric charge tester (Faraday drum + drum friction machine + electrostatic potentiometer), ZF-613 point to point resistivity tester, ZF-618 tensile testing machine.
Between the two, electrostatic hazards <br> <br> operator clothing produced in the normal production activities, clothing worn between the outside surface of the medium (such as countertops, chair surfaces, tools, appliances, etc.), layers of clothes Between the underwear and the skin, between the sole and the floor during walking, the clothes and shoes are charged due to frequent contact separation and friction. The local static charge of clothing and shoes gradually spreads to the entire surface according to the dispersion law of the charge on the medium, forming a certain static voltage on the garment when it reaches equilibrium. Of course, because the human body is a good conductor, the charging of the clothing will cause the body's skin to be electrified due to electrostatic induction, and it will also form a certain static voltage. There are then two possible discharge paths for the operator: one is the discharge between the finger (skin) and the ground conductor, and the other is the discharge between the work clothes and the ground conductor. Both of these discharges can cause damage to electrostatically sensitive devices.
When the human body performs various activities, the static voltage value on the clothing has greatly exceeded the electrostatic discharge damage threshold of many electrostatic sensitive devices, and it may cause damage to the sensitive device when touching or approaching these components. It is generally believed that wearing cotton overalls can prevent static electricity from accumulating. Actually, this view has one-sidedness. It can only be basically achieved when the relative humidity of the air is higher than 50%. However, when the relative humidity is low, the amount of charge of pure cotton products increases significantly. Tests have shown that when the relative humidity is lower than 30%, the charge of cotton fabrics is comparable to that of polyester, and when the relative humidity is lower than 20%, the charge of cotton fabrics is even higher than that of some chemical fabrics. Therefore, in a dry climate, it cannot be expected that pure cotton products can be used to eliminate electrostatic hazards in garments under any circumstances. Therefore, in order to effectively prevent electrostatic discharge hazard of the human body, operators must wear anti-static overalls.
Third, anti-static clothing anti-static overalls principle <br> <br> means to prevent the accumulation of static electricity on clothing, anti-static fabric to fabric and sewing clothes. The antistatic fabric is a fabric formed by mixing electrically conductive fibers or antistatic synthetic fibers or a mixture of both of them at substantially equal intervals or evenly during spinning. The term “conductive fiber†refers to a generic name for a fiber made entirely or partially of a conductive material or a sub-conductive material that uses a metal or an organic material, and has a volume resistivity Ïv 介于between 104 and 109 Ω·cm. According to the distribution of the conductive component in the fiber, the conductive fiber can be divided into three types: a conductive component uniform type, a conductive component overlay type, and a conductive component composite type. At present, the vast majority of anti-static fabrics are made of conductive fibers, and in particular, composites of conductive components are used, that is, composite fibers are the most used. The antistatic clothing made by adding conductive fibers to chemical fiber fabrics is based on the mechanism of charge leakage and neutralization. When grounded, the static electricity on the fabric, in addition to being neutralized by the corona discharge of the conductive fibers, can also be discharged via the conductive fibers to the ground; when not grounded, the electricity is eliminated by means of the weak corona discharge of the conductive fibers. Practice has shown that anti-static overalls can effectively inhibit static clothing, eliminate or reduce the harm of electrostatic discharge.
Fourth, anti-static overalls testing equipment ZF-611 fabric frictional electric charge tester (Faraday drum + drum friction machine + electrostatic potentiometer), ZF-613 point to point resistivity tester, ZF-618 tensile testing machine.
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