Measured by electrical experiments involving knitted warp and weft direction conductivity, we concrete analysis on the factors that affect electromagnetic shielding effectiveness of the knitted fabric. The influence factors of preventing electromagnetic radiation fabric shielding performance is associated with the organization structure and related parameters of knitted fabric. These include: organization type, the metal fiber content, the structure of the yarn or fabric, fabric horizontal (or vertical) electrical conductivity. It was found that the knitted fabric horizontal conductivity is different from the vertical conductivity, and the fabric transverse electrical conductivity is better than longitudinal. When knitted fabric electrical conductivity is good at the same condition, the shielding performance of the fabric is good.
Key words: Conductivity, knitted fabric, organization type, shielding effectiveness.
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