This page explains what "Ne 30/1 combed cotton" means on a fabric spec, and it is for anyone who reads a spec sheet without a spinning background: a merchandiser, a new buyer, a factory owner, or a student. Order A's T-shirt has carried this exact line since lesson 1.1, unexplained until now. A merchandiser at a garment factory or a buyer at a brand meets this line every time a new order starts, because the yarn is chosen before the fabric is knitted, and the fabric is chosen before the garment is cut. This lesson teaches the information flow behind that line: how raw cotton becomes a graded fibre, and how that grade becomes a yarn number a mill can spin and a factory can order by name.
Without this skill, a person reads "Ne 30/1 combed" as a fixed label instead of a set of choices, each with a cost. They cannot tell a buyer why combed costs more than carded, or explain what happens if a mill substitutes a cheaper cotton grade. A wrong assumption here can turn a small cost question into a fabric-quality problem discovered only after the garment is cut.
You need: the ten-stage chain from lesson 1.1 (fibre grower, ginner, spinner, knitting or weaving mill, dyeing and finishing mill, garment factory, buyer, shipping, retailer, customer). If you have not read lesson 2.1, the key terms below give you enough to continue.
By the end of this lesson you can:
Not covered here: the Ne-to-Tex conversion formula (lesson 3.2), how combed and carded yarn are spun (lesson 3.4), and how wool, silk and linen are graded (lesson 2.3).
| Term | Meaning |
|---|---|
| Staple length | The length of a cotton fibre, in millimetres. Longer staple generally spins into a stronger, finer yarn. |
| Micronaire | A reading of a fibre's fineness and maturity. Mills specify a target range; too fine or too coarse both cause problems. |
| Trash grade | A grade for how clean and white raw cotton is. A lower grade needs more cleaning before spinning, adding cost. |
| Combed cotton | Yarn that has been through combing, a step removing the shortest fibres before spinning, for a smoother, stronger yarn. |
| Carded cotton | Yarn spun without the combing step. Cheaper, but less smooth and even than combed yarn of the same count. |
| Yarn count (Ne) | A number for how fine a yarn is, in the English cotton count system. A higher number means a finer yarn. |
| Ply | The number of single strands twisted together into a yarn. "/1" means single-ply: one strand, not twisted with another. |
| Combing waste | The percentage of raw fibre removed as short fibre during combing: a real cost, not a fault, since it makes combed yarn smoother. |
Before a spinning mill turns raw cotton into yarn, the raw cotton is graded on three things: staple length (how long the fibre is), micronaire (fineness and maturity), and colour and trash grade (how clean and white it is). These three grades decide both the yarn's quality and its price, because a mill needs a certain grade of fibre to spin a given yarn count reliably. Order A's fabric spec already names a yarn built from graded cotton: Ne 30/1 combed cotton. "Combed" describes a spinning step that removes the shortest fibres for a smoother, stronger yarn. "30/1" is the yarn's count and ply: 30 is the count number in the Ne system, and "/1" means single-ply.
| What can differ | The shapes you will meet | Why it matters |
|---|---|---|
| Staple length | Short (under 26 mm), medium (26-28 mm), long (28-34 mm), extra-long (over 34 mm, for example Egyptian or Pima cotton). | Longer staple spins into a stronger, finer yarn; short staple limits how fine and even a yarn can be spun. |
| Micronaire | Mills specify a target range; a reading below it means immature, weak fibre, and a reading above it means coarse fibre. | Fibre outside the target range causes spinning problems or a yarn that does not perform as specified, even at the right staple length. |
| Trash grade | A cleaner, whiter lot at a higher grade; a lot with more leaf and seed trash at a lower grade. | A lower grade needs more cleaning before spinning, which adds cost and can leave more visible trash in the finished yarn. |
| Combed vs carded | Combed removes the shortest fibres before spinning, at a real cost in wasted fibre (see the worked number); carded skips this step. | Combed gives a smoother, stronger, more even yarn at a higher price; carded is cheaper but less smooth for the same count. |
None of these is a single fixed value across the trade: a spinning mill chooses a grade and a combing decision to match the yarn a knitting or weaving mill has ordered, at a price the buyer has agreed to pay.
The case we followOrder A's fixed spec calls for Ne 30/1 combed cotton, 180 GSM single jersey fabric. Nile Spinning is the spinning mill in the academy's cast that would spin this yarn from graded raw cotton and sell it, by weight, to Rowad Knits, the knitting mill that turns the yarn into the greige fabric Delta Garments cuts and sews.
For Order A's yarn to be spun as "Ne 30/1 combed", Nile Spinning needs raw cotton with a staple length, micronaire and trash grade suited to a fine, combed, single-ply yarn: cotton that is clean enough, mature enough, and long enough in staple to spin evenly at count 30 after the shortest fibres are removed in combing. If Nile Spinning used a much shorter-staple, lower-grade cotton instead, it could still call the result "Ne 30/1" by count, but the yarn would be weaker and less even, and Rowad Knits' fabric would likely not match the sample Delta Garments and Northline Apparel had already approved.
The worked numberCombing removes a real percentage of fibre as short-fibre waste, which is why combed yarn costs more than carded yarn of the same count. The industry range for combing waste is roughly 12-18% of fibre by weight; this is a general spinning-mill range, not a specific figure for Nile Spinning's own combing waste. Using the midpoint of that range as a clearly labelled estimate, here is roughly how much usable fibre Nile Spinning would keep from 100 kg of raw cotton going into a combed yarn:
About 85 kg of usable fibre remains from 100 kg of raw cotton, using the midpoint of the industry range. The real figure for any one lot depends on the cotton's own grade and the mill's own combing setting, and can land anywhere from about 82 kg to 88 kg for the same 100 kg starting point.
A common mistake is treating combed cotton as simply the better choice for any fabric, because it is more expensive and smoother. Combed cotton costs more specifically because of the fibre lost in combing, the waste shown in the worked number above. That cost buys a smoother, more even yarn, which matters for a fine, close-to-skin knit like Order A's T-shirt. It does not automatically matter for every fabric. A buyer choosing combed cotton for a fabric that does not need the extra smoothness or strength is paying for a property the product will not use, without getting a lower price to show for it.
Raw cotton is checked on three things before it is spun: how long the fibre is, how fine and mature it is, and how clean it is. A yarn label like "Ne 30/1 combed" tells you the yarn's fineness (the number), whether it is a single strand or twisted with another (the "/1"), and whether the shortest fibres were removed before spinning ("combed"). Removing those short fibres, called combing, throws away part of the raw cotton's weight, which is why combed yarn costs more than carded yarn of the same fineness. Combed is not simply "the better option" for every fabric; it is a trade-off that is worth paying for when a fabric needs a smooth, even, strong yarn, and not worth paying for when it does not.
A new junior merchandiser at Northline Apparel reads Order A's spec line, "Ne 30/1 combed cotton, 180 GSM", and asks Sara, the buyer, whether switching to carded cotton of the same count would be a simple way to reduce the fabric's cost without changing anything else about the T-shirt.
The document the learner reads, Sara's reply email:
Is switching Order A's fabric from combed to carded cotton a safe way to cut cost, with no other effect on the product? Decide before you open the answer.
No — switching from combed to carded changes the yarn's hand-feel and evenness, not just its cost, so it is a specification change, not a pure cost saving with no side effect.
Combed and carded yarn of the same count are not interchangeable at the fabric level: removing the combing step leaves the shortest fibres in the yarn, which changes how smooth and even the finished single jersey fabric feels and looks. That is exactly the property the sample Delta Garments already produced and Northline Apparel already approved was built on.
Sara's instruction to check with Delta Garments first is correct. Any fibre or yarn change needs the factory's confirmation that the resulting fabric will still match the approved sample, or a new sample must be produced and approved before the change goes into production. Skipping that step to save a small fabric cost risks a fabric that fails inspection against the approved sample later, which costs far more than the saving.
Switching combed cotton for carded cotton without approval does not have a single fixed cost the way a wrongly calculated fabric weight does; it is a risk to the whole order, framed here without a specific dollar figure because no re-inspection or rejection has actually happened in this case. If Delta Garments cut and sewed 15,000 T-shirts from an unapproved, carded-cotton fabric and Northline Apparel's final inspection then rejected the shipment against the approved sample, the factory would face the cost of re-cutting and re-sewing some or all of the order, plus the delay against a ship date that does not move. That risk, not a small saving on fabric cost, is what a specification change without approval puts at stake, and it is why the method above treats "check with the factory first" as a required step, not an optional courtesy.
Lesson 2.1 introduced this sheet, listing the natural fibres this course covers. This lesson fills in the cotton row with the facts a merchandiser or buyer needs on hand when reading a cotton spec line.
| Column | Order A (filled in) | Your order |
|---|---|---|
| Fibre | Cotton | |
| Source | Plant (seed hair of the cotton boll) | |
| Main property | Soft, absorbent, breathable; Order A's fibre (Ne 30/1 combed) | |
| Typical apparel use | Everyday knitwear and wovens, all seasons | |
| Your notes (fits a new brief?) | Combed chosen for smoothness on a close-to-skin knit |
Download the fibre reference sheet linked from this course to record the same facts for your own order.
1. What does "combed" describe in the label "Ne 30/1 combed cotton"?
2. Why does combed cotton yarn generally cost more than carded cotton yarn of the same count?
3. A mill is combing 250 kg of raw cotton, and combing waste for this lot runs at 16% of fibre by weight. Roughly how much usable fibre remains?
| EN | AR | FR | TR | Meaning |
|---|---|---|---|---|
| Staple length | طول التيلة | Longueur de fibre | Elyaf uzunluğu (stapel boyu) | The length of an individual cotton fibre, measured in millimetres. Longer staple generally spins into a stronger, finer yarn. |
| Micronaire | الميكرونير | Micronaire | Mikroner | A reading of a cotton fibre's fineness and maturity. Mills specify a target range because fibre that is too fine or too coarse both cause problems. |
| Trash grade | درجة الشوائب واللون | Grade de pureté et de couleur | Kirlilik ve renk derecesi | A grade for how clean and white the raw cotton is. A lower grade needs more cleaning before spinning, which adds cost. |
| Combed cotton | قطن ممشط | Coton peigné | Taranmış (penyeli) pamuk | Cotton yarn that has been through combing, a step that removes the shortest fibres before spinning, giving a smoother, stronger, more even yarn. |
| Carded cotton | قطن مقروض (بدون تمشيط) | Coton cardé | Karde pamuk | Cotton yarn spun without the combing step. Cheaper, but less smooth and less even than combed yarn of the same count. |
| Yarn count (Ne) | رقم الغزل (نظام Ne) | Numéro de fil (Ne) | İplik numarası (Ne sistemi) | A number describing how fine a yarn is in the English cotton count system. A higher count number means a finer yarn. |
| Ply | عدد الخيوط (البرم) | Nombre de fils retors (ply) | Kat sayısı (ply) | The number of single strands twisted together to make a yarn. "/1" means single-ply: one strand, not twisted with another. |
| Combing waste | فاقد التمشيط | Déchets de peignage | Tarama (penye) fire oranı | The percentage of raw fibre removed as short fibre during combing. It is a real cost, not a fault, because it is what makes combed yarn smoother. |
You now know how cotton is graded and what "Ne 30/1 combed" means on a spec sheet. The next lesson looks at three other natural fibres — wool, silk and linen — and shows how their properties differ from cotton and from each other. Back to the course map