PRANEM and anti-static: a new tape for safety footwearThe Prato-based company proposes an excellent alternative to classic stitching for transmitting static electricity to anti-perforation insoles

May 11, 2018

dsc_0101One of the special features of safety footwear is that it has an anti-perforation fabric inside, which is made up of steel wires that transmit static electricity to the insole and then to the ground. Cleaning insoles are usually positioned on top of these on which rests the foot. These insoles are stitched with a conductive material that has the same function of transmitting electricity from the foot to the anti-perforation material. However, this simple stitching does not ensure contact with the steel threads of the sole, so therefore it usually needs to be expanded and made more complex.

Pranem proposes a different solution: a conductive tape applied to the sole, which makes the entire surface completely conductive, ensuring, wherever it is positioned, contact between the sole of the foot, the conductive tape and the steel wire of the anti-perforation material.

Furthermore, the new regulations concerning safety footwear require conductivity and anti-static values to be reached with 12% of relative humidity in the environment (basically, dry). Other proposals available on the market work with chemical processes that use external moisture to transfer static electricity. These systems require a minimum of 50% of relative humidity, and their efficiency fluctuates according to the degree of humidity present in the environment. The material proposed by Pranem, instead, works practically without humidity, thus keeping the performances stable and constant.

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The material comes in small reels with a height of 1.5 cm up to 2 cm and is applied by heat and pressure to the insole with a heat-sealing machine. Since the tape costs are similar to the stitching costs, the system designed by Pranem is an excellent and reliable alternative to traditional methods.

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