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PTFE staple fiber is made by 'slit method'namely 'dry method'with high efficiency and more environmental.Observed in the electron microscope,the fiber is in flat shape with angular edge and a certain amount of featheriness. the color of the fiber is white, so it is also called as 'white crimped fiber'.
Technical specifications:
As per different air permealibility requirement,we could provide PTFE fiber with different density from 2.0 to 7.0 dtex.
| Item | Index | Remarks |
| Dtex | 2.2/2.5/3.5/4.5/5.5/6.5 | Average |
| Tensile strength,min | 3cN/den | |
| Breaking Elongation,max | 23% | |
| Shrinkage,max | 2% | 260°C/2h |
| CV,max | 0.16 | |
| Cut Length | 51/60/70 | |
| Crimp Number | 12~16/25mm | |
| Color | white |
Application:
Mainly used in needle punched felt and hydroentangling nonwoven products