polyester sewing thread
polyester
filament thread
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Polyester Filament Thread
Hongfeng Doyte® polyester filament sewing thread can provide excellent seam strength and appearance and is widely used.
Doyte® Filament Polyester Sewing Thread Parameters
| TEX | METRIC | LENGTH | RA (dTex) | BSA (cN) | EBA | DHS 150℃(%) | BWS 100℃(%) |
| 10 | Tkt 250 | 5,000M | 130 | 630 | 20 | ＜2.5 | ＜1.0 |
| 12 | Tkt 200 | 3,000M | 183 | 920 | 19 | ＜2.5 | ＜1.0 |
| 18 | Tkt 180 | 5,000M | 180 | 920 | 21 | ＜2.5 | ＜1.0 |
| 24 | Tkt 120 | 3,000M | 254 | 1420 | 19 | ＜2.5 | ＜1.0 |
| 30 | Tkt 080 | 2,000M | 373 | 2170 | 18 | ＜2.5 | ＜1.0 |
| 50 | Tkt 060 | 2,000M | 576 | 2620 | 18 | ＜2.5 | ＜1.0 |
| 60 | Tkt 040 | 3,000M | 783 | 4230 | 17 | ＜2.5 | ＜1.0 |
| 90 | Tkt 030 | 2,000M | 943 | 5200 | 19 | ＜2.5 | ＜1.0 |
| 135 | Tkt 020 | 1,500M | 1596 | 8360 | 19 | ＜2.5 | ＜1.0 |
| 150 | Tkt 018 | 1,500M | 1840 | 9030 | 22 | ＜2.5 | ＜1.0 |
| 180 | Tkt 015 | 1,000M | 2286 | 11400 | 22 | ＜2.5 | ＜1.0 |
| 270 | Tkt 010 | 900M | 3405 | 16630 | 23 | ＜2.5 | ＜1.0 |
| 350 | Tkt 008 | 700M | 3856 | 19480 | 28 | ＜2.5 | ＜1.0 |
Standard for colour fastness of polyester thread for sewing machine
| International standard | Name | Degree of staining |
| ISO 105 C10 | Wash Fastness | Grade 4 |
| ISO 105 X12 | Rub Fastness | Grade 4 |
Colorfastness test of Doyte® polyester sewing thread
| International standard | Soap solution | Temperature | Time | Degree of staining |
| ISO 105 C10 | 5g/L | 60℃+/-2℃ | 30Min | Grade 4 |
Further reading
What is filament polyester sewing thread?
Filament Polyester Sewing Thread is made of slender polyester fibers twisted.
- Advantages: Excellent elongation (fibers can be stretched and recovered), smooth and fuzz-free, can be made into thick or thin threads.
- Disadvantages: Not as strong as core yarn (when comparing yarns of the same size), finer filament yarn may require tension adjustment.
Filament Polyester Sewing Thread VS Filament Nylon Sewing Thread
Filament polyester sewing thread looks, feels, and sews similar to filament nylon sewing thread. Indistinguishable by appearance alone, technical specifications such as strength and stretch are very similar, meaning polyester works just as well as nylon in most applications.
What is polyester? What is nylon?
The use of filament high-strength polyester sewing thread
Polyester outperforms nylon when sewing things that are exposed to sunlight (UV) and moisture for extended periods of time. This means that filament high-strength polyester sewing thread is a better choice for sewing anything that will be used outdoors most of the time.
Note: It is important to distinguish between long-term use and occasional use.
For example, tents used for annual camping trips can be sewn in nylon or polyester; tents used for fieldwork during a season should be sewn in polyester.
About UV resistance
Polyester threads have excellent UV resistance but do not provide ultimate UV resistance. Also, there are UV-treated reinforced polyester and nylon threads for better results.
None of this would matter if the material being sewn was not equally bleach and sun resistant. After all, the material makes up at least 90% of the content and cost of the item being sewn.
Limitations of polyester thread for sewing machine
Polyester filament sewing thread is popular for its weather resistance, versatility, durability, and dimensional strength. In some applications, other types of sewing thread may be more suitable, depending on the conditions of end-use.
Below we list some specific cases for reference:
Flame Retardant Clothing and Gear – Polyester thread for sewing machine will stick at 440F and melt at 483F. This is too low for any application where threads and materials must withstand high temperatures. Aramid and PTFE fiberglass threads are used in these cases. Aramid sewing thread is heat resistant to at least 600F and does not melt; PTFE fiberglass protects to 1,000F.
Urgent Need for Strength – Polyester threads are strong enough for the various applications described so far. However, it is a poor choice for high-stress applications like conveyor belts, as it can stretch up to 26% before breaking. Compared to nylon or polyester, aramid is about twice as strong and much more expensive. For example, 92-gauge polyester has a tensile strength of 14.5 pounds; aramid in that size has a tensile strength of 30 pounds. Additionally, aramid only stretches 2% before breaking.
COTTON APPEARANCE – Polyester filament sewing thread has a smooth, shiny, lustrous finish that is not compatible with garments that require a soft, fuzzy, cotton look. In these cases, cotton, spun polyester, and wool are better and cheaper options.
Transparent or invisible suture Related category: Monofilament thread. The monofilament is made of nylon and its structure is similar to the fishing twin.
Chemical Resistance – Polyester (polyester) handles some chemicals well but not others.