100% Spun Polyester Yarn 40S/3
100% Spun Polyester Yarn 40S/3 spun from 100% YIZHENG polyester staple fiber, twisted on TFO or ring frames in S or Z direction, for knitwear seams, sportswear, home textile decorative stitching.
Product Overview
100% Spun Polyester Yarn 40S/3 is a 40S/3 construction spun from 100% YIZHENG polyester staple fiber. It is medium, and an extra ply over 40S/2 for plants that want more seam security at the same nominal fineness. Typical end uses are knitwear seams, sportswear, home textile decorative stitching.
- 40S/3
- 3-ply
- TFO or ring twist
- S or Z direction
- RAW WHITE
MOQ 10 tons · Supply ability 800 tons per month · Shipment 15-25 days after deposit or original L/C
What You Get From This Construction
Right weight for the fabric
At 40S/3 this is a general purpose thread, so the stitch line sits with the cloth rather than on top of it.
Ply chosen for roundness
3 plies keep the cross-section round, which is what lets a thread survive thousands of passes through the needle eye.
Knotless cones
No knots in the middle of a cone, so a long run is not interrupted by a splice.
Twist to your specification
TFO or ring twist, S or Z direction, fixed in the order rather than assumed.
Even tension
Yarn evenness is controlled at carding and drawing, which prevents the tension changes that cause skipped stitches.
One mill from fiber to cone
Spinning, dyeing and rewinding happen on one site, so a quality question has one owner.
Where 100% Spun Polyester Yarn 40S/3 Is Used
Typical end uses for this item are knitwear seams, sportswear, home textile decorative stitching.
Buyers Who Specify This Item
Thread converters, dye houses and weaving mills that dye or finish the yarn themselves. Buying raw white lets you hold one stock item and dye to order, instead of tying up cash in thirty finished colours that may never move.
Problems it solves
- A shade that does not match the approved swatch after bulk cutting has already started
- Thread breaks that stop an automatic line several times per shift
- Seam puckering on thin woven fabric because the thread is too heavy for the cloth
Technical Data
Every value below is the figure the mill quotes for this item. Anything not confirmed is marked TBC rather than filled in.
| Product name | 100% Spun Polyester Yarn |
|---|---|
| Yarn count | 40S/3 |
| Ply | 3-ply |
| Raw material | 100% YIZHENG polyester staple fiber |
| Colour | RAW WHITE |
| Technics | TFO or ring twist |
| Twist direction | S or Z |
| MOQ | 10 tons |
| Supply ability | 800 tons per month |
| Payment | T/T, L/C |
| Shipment | 15-25 days after receiving the deposit or original L/C |
| Packing | On paper cone: 1.67 kg/cone, 25 kg/pp bag; On plastic dye tube: 1.25 kg/cone, 25 kg/pp bag; 1x20GP: 8-10 tons; 1x40HQ: 20-25 tons; Or according to customers requirements |
| Tensile strength | TBC - stated per lot on request |
How This Item Is Produced
What Is Checked Before It Leaves
Tensile strength, colour fastness, shrinkage and yarn evenness are the four properties controlled on the line. The mill states that its products meet OEKO-TEX Standard 100 class 1, REACH and international garment standards.
Tensile strength
Checked so the seam holds under the load the product will see.
Colour fastness
Checked so the shade survives washing and daylight.
Shrinkage
Checked so the seam does not pucker after the first wash.
Yarn evenness
Checked so tension stays constant as the thread feeds.
What You Can Change On This Item
Colour
Dyed to your colour card or a physical swatch, with a lab dip approved before bulk.
Cone and tube
Paper cone or plastic dye tube, at the cone weight your winding shop expects.
Packing and marking
Bag, box and carton counts and carton marking follow your requirement.
How It Compares
Against a finer count
A finer count gives a more discreet stitch but less seam strength. Step finer only if the thread is visible on the face of the fabric.
Against a coarser count
A coarser count adds strength but can pucker light cloth and fill the needle groove. Step coarser only if seams are failing under load.
Against a different ply
More plies at the same count give a rounder, stronger thread at slightly more bulk. This is usually the better first change.
Getting The Best Out Of It
Match the twist direction to the machine
A thread twisted against the machine untwists as it feeds and starts breaking. Confirm S or Z before ordering.
Sample on your own line
Run the sample at production speed on the machine that will make the goods, not on a bench.
Store cones dry and out of sunlight
Polyester is stable but packaging and labels are not. Keep cartons closed until the thread is needed.
Keep one approved reference
Retain an approved cone from the first accepted lot. It is the reference for every repeat order.
Other Items Buyers Compare
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100% Spun Polyester Yarn 60S/2
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100% Spun Polyester Yarn 50S/3
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View specificationThe same count in another form: Polyester Sewing Thread 40S/3 · Colour-Dyed Spun Polyester Yarn 40S/3
Guides That Answer The Next Question
How To Read Polyester Yarn Counts From 20S/2 To 60S/3
What the two numbers in a spun polyester yarn count mean, how ply changes the thread, and which count suits which fabric.
Packing Options And Container Loading For Polyester Yarn
Cone weights, bag and carton counts, and how many tons of spun polyester yarn fit a 20GP or 40HQ container.
Questions About 100% Spun Polyester Yarn 40S/3
What is the minimum order quantity for 100% Spun Polyester Yarn 40S/3?
MOQ is 10 tons.
How is 100% Spun Polyester Yarn 40S/3 packed?
On paper cone: 1.67 kg/cone, 25 kg/pp bag; On plastic dye tube: 1.25 kg/cone, 25 kg/pp bag; 1x20GP: 8-10 tons; 1x40HQ: 20-25 tons; Or according to customers requirements
Can you dye 40S/3 to my colour card?
Yes. Colour is dyed in our own dye house to your colour card or a physical swatch, with a lab dip approved before bulk.
How long is the lead time?
Shipment leaves 15-25 days after we receive the deposit or the original L/C. Samples are ready in 3-7 days.
Can I get a sample before ordering?
Yes. Samples are prepared within 3-7 days so you can run the thread on your own machine before committing.
Which payment terms do you accept?
T/T and L/C. FOB, CIF and DDP shipping terms are all supported.
Request A Quote For 100% Spun Polyester Yarn 40S/3
Send the quantity, the colour and your destination port. Quotation, packing and shipment terms come back in one email.