Production
Polymer formation occurs in PA 6.6 through polycondensation and in PA 6 through polymerisation. The fibre is obtained through the melt spinning process.
Properties
- Very high tear and abrasion resistance
- High elasticity, low crease sensitivity
- Seawater and rot bacteria resistance
- Easy care (easy to wash and quick drying)
- Good moisture absorption
- Thermoplastic
- High light sensitivity
Temperatures
- Melting point: PA 6.6 approx. 255°C to 260°C depending on type
- Melting point: PA 6 approx. 215°C to 220°C depending on type
FAQ
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Polyamide 6.6 is produced by polycondensation, while polyamide 6 is produced by polymerisation. The fibres are formed using the melt spinning process.
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Both are polyamides but differ in their chemical structure and melting point. PA 6.6 has a higher melting point (approx. 255–260°C), while PA 6 melts at approx. 215–220°C.
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Yes. Polyamide offers very high tear strength and excellent abrasion resistance, making it suitable for heavy-duty applications.
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Polyamide has high elasticity and good recovery properties, allowing seams to withstand dynamic loads.
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Yes. Compared to polyester, polyamide has good moisture absorption, which can influence dimensional stability and handling characteristics.
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Polyamide is resistant to seawater and rot bacteria, making it suitable for marine and outdoor applications. However, it is sensitive to prolonged UV exposure.
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Polyamide has relatively high light sensitivity. Prolonged exposure to sunlight can reduce strength over time.
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Yes. Polyamide is thermoplastic and softens or melts when exposed to high temperatures.
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PA 6.6 melts at approximately 255–260°C, depending on type. PA 6 melts at approximately 215–220°C.
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Polyamide threads are commonly used in footwear, leather goods, upholstery, automotive interiors and heavy-duty technical applications where high strength and elasticity are required.