Monofilament fishing line came along in 1939, with a stronger version called Stren introduced in the late 1950s. Monofilament is easy for anglers to cut and tie fishing knots in. It comes in many colors and a variety of strengths.
A complex process that fuses synthetic fibers into one ultra-strong strand forms braided fishing lines. Braided lines will not stretch, which translates into greater sensitivity to biting fish.
Because of having a refractive index nearly the same as water, fluorocarbon line is undetectable to the eyes of a fish. It does not cast as well as other lines but is strong, durable and often used as a leader.
Ten-yard segments of different colors are a feature of trolling lines. This allows the angler to have an exact idea of how much he has let off his reel while trolling.
Ice fishermen will employ special braided lines on their tip-ups, which will not cut their hands when they pull in fish. Vinyl coats some of these types of lines.