Introduction
PTFE sewing thread is made of 100% polytetrafluoroethylene resin material with high-quality temperature resistance(-196~260℃), corrosion resistance, hydrolysis, oxidation resistance, and other properties.
Features:
- The single strand of this product is manufactured by the extruding process, with circular diameter, uniform and full trace, small shrinkage, stable elongation, and large continuous length(the maximum weight specification of 1350dtex conventional line is 1000g/spool and continuous length is 7500m), which is suitable for high-speed sewing machines. In addition, in order to enhance the fastness of stitching, 1650dtex(1500D), 2000dtex(1800D), 2650dtex(2400D) for bag top, bag bottom and other special specifications are equipped.
- In order to ensure the fastness of sewing, this product is made of “long filament” without any bonding and stitching methods. the length of the sewing thread is artificially increased to ensure the safety of the sewing thread and the safety of the filter bag.
- Because PTFE material has a very strong self-lubrication property and extremely low friction coefficient, if there is a stitch jumping during sewing, an appropriate amount of silicone oil can be coated on the sewing line to prevent this situation from happening.
- Due to the particularity of the manufacturing process, there is a 10% error range in linear density and strength parameters.
Application:
Our products are widely used in environmental protection, filtration, chemical industry, sunshade sail, and other fields.
Specification：
| Technical parameters of PTFE sewing threads(1) | ||||
| Model: ST-EF/1350/3-a | ||||
| No. | Parameter | Value | Test Temperature | Notes |
| 1 | Linear density | 1350±50dtex | Ambient temperature | 1200D |
| 2 | Breaking strength | ≥36N | ＜20℃ | |
| 3 | Breaking tenacity | ≥2.6cN/dtex | ＜20℃ | |
| 4 | Elongation at break | 4-10% | ＜20℃ | |
| 5 | Heat-shrinkage rate | ≤3% | 260℃/2h | |
| 6 | Yarn | 3 | ||
| 7 | Average mass per one meter | 0.135g/m | ||
| 8 | Length per kilometers | 7500m | ||
| 9 | Net weight/spool | 800-1000g | Without knots | |
| Technical parameters of PTFE sewing threads(2) | ||||
| Model: ST-EF/1650/3-a | ||||
| No. | Parameter | Value | Test Temperature | Notes |
| 1 | Linear density | 1650±60dtex | Ambient temperature | 1500D |
| 2 | Breaking strength | ≥39N | ＜20℃ | |
| 3 | Breaking tenacity | ≥2.3cN/dtex | ＜20℃ | |
| 4 | Elongation at break | 4-10% | ＜20℃ | |
| 5 | Heat-shrinkage rate | ≤3% | 260℃/2h | |
| 6 | Yarn | 3 | ||
| 7 | Average mass per one meter | 0.165g/m | ||
| 8 | Length per kilometers | 6000m | ||
| 9 | Net weight/spool | 800-1000g | Without knots | |
| Technical parameters of PTFE sewing threads(3) | ||||
| Model: ST-EF/2000/4-a | ||||
| No. | Parameter | Value | Test Temperature | Notes |
| 1 | Linear density | 2000±1000dtex | Ambient temperature | 1800D |
| 2 | Breaking strength | ≥49N | ＜20℃ | |
| 3 | Breaking tenacity | ≥2.45cN/dtex | ＜20℃ | |
| 4 | Elongation at break | 4-10% | ＜20℃ | |
| 5 | Heat-shrinkage rate | ≤3% | 260℃/2h | |
| 6 | Yarn | 4 | ||
| 7 | Average mass per one meter | 0.2g/m | ||
| 8 | Length per kilometers | 5000m | ||
| 9 | Net weight/spool | 600-800g | Without knots | |
Workshop
Color PTFE Sewing Thread:
We also provide color PTFE sewing thread. Color sewing thread is made by a unique blending technology by adding nano fluoro based pigments to PTFE dispersion resin. The product has the characteristics of full color, oxidation resistance, and high fastness to sunlight while maintaining excellent resistance to temperature and corrosion.
Application:
Color sewing thread is mainly used for sewing special industrial powder (mineral powder) collection filter bag, dust filter bag, screen identification, sailing sail, sunshade tarpaulin and etc.
Specification:
The density specification of color sewing thread is 1350-5500dtex. Meanwhile, the special color can be customized.
Notifications:
- Please do not use an open fire to burn it during using the product in case of the generation of harmful gas to the human body.
- The product waste is not degradable and will cause environmental pollution, do not mix it with ordinary garbage or burn it. Please collect and recycle it by a professional company.
- PTFE material is a non-petrochemical product, which is manufactured as non-renewable mineral resources with high value. Please pay attention to economical use.
- According to the standards of the China Industrial Textile Industry Association and international practices. Dtex refers to the mass of a certain unit length(G/L). Another unit of linear density commonly used in the industry, “den”(Daniel), refers to the mass of 9000 meters in length. 1den=0.9dtex
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