Nylon hot melt yarn play a significant role in the manufacturing of hot air shoe uppers, primarily due to their low melting point, high thermal bonding strength, and stable physical and chemical properties. The melting point of Nylon hot melt yarn is as low as 90°C, which allows them to soften into a sticky liquid when heated to a specific temperature, thereby achieving a tight bond between various parts of the shoe upper, ensuring the stability and comfort of the shoe. Moreover, Nylon hot melt yarn also possess good wear resistance and tensile strength, which are crucial for improving the quality of the shoe upper and extending its service life.
In comparison, polyester hot melt filaments are an alternative to Nylon hot melt yarn. Polyester hot melt filaments also feature a low melting point and high thermal bonding strength, but they are mainly made of polyester, and their wear resistance may not be as good as the polyamide fibers in Nylon hot melt yarn. This means that in some applications requiring extremely high wear resistance, Nylon hot melt yarn might be a better choice.
Nylon hot melt yarn play an important role in the manufacturing of hot air shoe uppers due to their unique performance characteristics. Their low melting point, high thermal bonding strength, as well as good wear resistance and tensile strength make them the material of choice in this field. While polyester hot melt filaments are also an effective alternative, they may be slightly inferior in terms of wear resistance. Therefore, when selecting hot melt filament materials, the specific application requirements and performance needs should be considered to decide whether to use nylon or polyester hot melt filaments.
