Factors affecting anti-static fabrics
With the progress of today’s society, anti-static fabrics have become an extremely common demand, and there are various forms of anti-static fabrics, such as ultra-clean anti-static fabrics and traditional anti-static denim, which have excellent anti-static effects. High count and high density anti-static fabrics, etc. The research and development of these fabrics provides us with a safer living and working environment. It has greatly promoted the development of our society.
Static electricity is a near-field hazard source, and the harm it causes to humans is well known, ranging from inadvertent static electricity strikes in daily life to large industrial production hazards. Human body static electricity exists invisible and adheres to the surface of objects. It releases energy only when it rubs or comes into contact with other objects. With the advancement of science and technology, more and more workplaces are used, especially in microelectronics and semiconductor production, biopharmaceuticals, medical care, clean rooms after school or static electricity removal places. If static electricity cannot be removed in time, it is easy to cause original component failure. Explosion, fire and other hazards. In order to prevent these measures, it is an inevitable trend to require staff to wear dustproof and anti-static work clothes.
The effect of spacing between conductive filaments on the performance of antistatic fabrics.
As the spacing between conductive filaments increases, the meridional charge area density and the latitudinal point density tend to decrease. That is to say, as the spacing between conductive filaments decreases, the charge density regardless of Both the meridional and latitudinal directions are increasing.
The effect of warp and weft density on the performance of antistatic fabrics
The fabric added to the electrocution and the point-to-point resistance meet the requirements of Class A anti-static clothing. When the conductive threads are equal, the antistatic properties of the fabric are related to the warp and weft density of the fabric. That is, as the warp, weft, and density of the fabric increase, the charge density in the warp and weft directions of the fabric increases, and the point-to-point resistance of the fabric decreases. The antistatic properties have been improved.
The influence of conductive yarn arrangement on the performance of antistatic fabric
The conductive filaments are arranged in a grid, compared with those arranged in strips. As the content of conductive fibers per unit area increases, the ability of the fabric surface to accumulate electrostatic charges is enhanced, the resistance is significantly reduced, and the antistatic properties of the fabric are improved.
To sum up, the following conclusions are drawn
1 When the warp and weft densities of the fabrics are not much different, the antistatic performance of the fabric is related to the type and composition of the fabric. Compared with pure polyester, the addition of cotton and viscose fiber is more conducive to improving the fabric. The charge surface density reduces the point-to-point resistance and improves the antistatic performance of the fabric.
2 When the warp and weft densities of the fabrics are the same, as the spacing between the conductive filaments becomes shorter, the conductive properties of the fabric decrease.
3 When the distance between the conductive filaments of the fabric is the same, the grid arrangement is more advantageous than the strip arrangement and improves the antistatic performance of the fabric.
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