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The coil is sewn to a zipper tape to make the final product. The final zipper product is completed when the nylon coiled teeth are sewn onto the zipper tape. Nylon coil zippers have a continuous coil chain made from nylon. When this coil is positioned on the back of the zipper and not in the front, this kind of zipper is called invisible zipper ...
Coil zippers are made of polyester coil and are thus also termed polyester zippers. Nylon was formerly used to make them, and though only polyester is used now, [citation needed] the type is still also termed a nylon zipper. Invisible zippers have the teeth hidden behind a tape, so that the zipper is invisible. It is also called the concealed ...
A major technological change came in 1950, when the company purchased a chain machine from the U.S. that allowed the automation of the zipper making process. Previously, YKK zippers were made by hand, and hence had an inferior quality compared to automated zippers from abroad. In March 1951, YKK relocated its headquarters to Chūō, Tokyo.
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Type 6,6 Nylon 101 is the most common commercial grade of nylon, and Nylon 6 is the most common commercial grade of molded nylon. [ 93 ] [ 94 ] For use in tools such as spudgers , nylon is available in glass-filled variants which increase structural and impact strength and rigidity, and molybdenum disulfide -filled variants which increase ...
The most common cable tie consists of a flexible nylon tape with an integrated linear ratchet gear rack, and on one end a pawl within a small open case. Once the pointed tip of the cable tie has been pulled through the case and past the ratchet, it is prevented from being pulled back unless a large amount of force is applied; the resulting loop ...
Ripstop nylon is the primary material used in hot air balloons. Ripstop nylon is a light-weight nylon fabric with interwoven ripstop reinforcement threads in a crosshatch pattern. The material comes in many different colors, sizes, and thicknesses. It is woven with coarse, strong warp and filling yarns at intervals so that tears will not spread.
The insulation between the various windings can be solved quite differently. In case of covering windings, a film is applied after the first winding to achieve good stray field characteristics. This film needs to be wound to cover the whole circumference. For this, also toroidal winding machines with special magazines can be used.