What is the melting point of nylon yarn?

The melting point of nylon yarn varies depending on the type of nylon used. Generally, nylon 6 has a melting point of around 220°C (428°F), while nylon 6,6 has a slightly higher melting point of around 260°C (500°F). However, it's important to note that these are just approximate values and the actual melting point may vary depending on a number of factors such as the molecular weight, processing conditions, and the presence of any other additives or fillers.

It's also worth noting that the melting point of nylon yarn is different from the softening point or glass transition temperature of the material, which is the temperature range at which the material becomes soft and begins to deform under load. For nylon, the softening point is generally around 80-90°C (176-194°F), which is lower than the melting point.