What are the characteristics of the raw material for puncture resistant insoles, polyester filament, compared to short fibers?

Release time:

2019-11-15

In order to prevent injury or stabbing from objects, such as falling objects from high places and scattered iron nails and sharp objects on the ground, it is possible to cause injury or stabbing. In response to such situations, many employers equip their employees with work shoes such as safety shoes and labor protection shoes.

In the manufacturing process, the use of selected materials also determines the performance of work shoe protection. The puncture resistant insole is made of industrial high-strength polyester. Industrial polyester refers to coarse polyester filament with mechanical properties such as high strength, high modulus, and low shrinkage, which can be further divided into high type, high modulus and low shrinkage type, and high strength and low shrinkage type.

High strength polyester filament has high strength and minimal loss of strength after heating. It is mainly used in lifting belts, conveyor belts, automotive safety belts, geogrids, Tesla fabrics, cables, industrial sewing threads, and rubber pipes. High strength and low shrinkage filament, with high strength and low shrinkage rate after heating, is mainly used in coated fabrics such as lightbox cloth, fluffy cloth, and membrane structure.

Compared to short fibers, long fibers have the following characteristics:

1. Long filament production is a single spindle production method.

A single filament has dozens of individual filaments, and from spinning to deformation, it needs to go through dozens of friction points, which can easily produce filaments. In addition, long filaments are produced in multiple spindle positions and multiple machines. Due to factors such as equipment, process, and operation, there may be certain differences in the performance of long filaments in different spindle positions, and even differences in the inner and outer layers of a tube.

2. Long filaments can be spun into different fibers through physical and chemical deformation methods.