Lesson 2.1.2 already told you that combed cotton costs more than carded cotton of the same count, without explaining why in numbers. This lesson finishes that job: it shows the actual mechanism, combing waste, and works the cost estimate a merchandiser needs before quoting a style either way. It is written from the factory side, because that is where the quoting decision is usually made: Delta Garments, asked by Cedar & Co., its domestic, hybrid-model customer, to quote a new basic knit style, has to decide whether to quote combed yarn, carded yarn, or both, and explain the price gap between them.
Without this skill, a merchandiser either quotes combed by default, because it sounds like the safer, better choice, or cannot explain to a customer why carded costs less than a number pulled from nowhere. Getting this wrong on a hybrid order, part firm order and part stock the factory carries itself, turns a yarn choice into a margin problem discovered only once the goods are costed.
You need: lesson 2.1.2's fact that combed cotton is smoother and pricier than carded cotton of the same count, and that combing removes the shortest fibres before spinning. Lessons 3.1 and 3.2 are useful background but not required here.
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 physically spun (a later course), and calculating a whole order's total yarn requirement (lesson 3.5, next).
| Term | Meaning |
|---|---|
| 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. |
| 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. |
| Price point | A specific price level a style is planned to sell at, used to balance a collection across cheaper and more expensive items. |
| Hybrid production model | A company that runs Make to Order and Make to Stock lines side by side, usually split by customer, product line or channel. |
Combed yarn and carded yarn of the same count are not two price tiers of the same material; they come from a genuinely different amount of raw cotton per unit of finished yarn. Combing removes the shortest fibres from raw cotton before it is spun, which is what makes combed yarn smoother, stronger and more even than carded yarn. That removed fibre does not disappear for free: it is short-fibre waste, and Track 2's appendix puts typical combing waste at roughly 12-18% of fibre by weight. Carded yarn skips the combing step entirely, keeping every fibre, including the shortest and weakest, which is exactly why carded yarn is cheaper and less smooth. The extra raw cotton a mill needs to produce combed yarn is a genuine material cost, not a processing fee or a mark-up a mill could simply choose to drop.
| Variant | What it is | Why it matters |
|---|---|---|
| Combed yarn | Smoother, stronger, more even yarn; the shortest fibres are removed before spinning. | Used where hand-feel and appearance matter, such as Order A's own Ne 30/1 combed T-shirt. |
| Carded yarn | Cheaper yarn spun without the combing step; keeps all the fibre, including the shortest, weakest pieces. | Used for basics where the extra smoothness is not the selling point; no fibre is lost to combing waste. |
| The real cost driver | Combing waste, roughly 12-18% of fibre by weight, means more raw cotton input for the same finished yarn weight. | A genuine material cost, not a processing fee a mill could quietly cut without changing anything else. |
| When the extra cost is worth it | A product marketed on softness, appearance or a premium hand-feel. | Justifies combed yarn's cost; a basic, price-sensitive product may not need it at all. |
None of this makes combed yarn a mistake or carded yarn a compromise on its own; each is the right choice for a different product and a different price point, and quoting the wrong one either wastes money or under-delivers on what the product needs to sell.
The case we followCedar & Co., the academy's domestic, hybrid-model brand, has asked Delta Garments to quote both a combed and a carded version of a new basic knit style for its own shops. The order is a hybrid one for Cedar & Co.: part of it is a confirmed order for a specific delivery, and part is standing stock the brand keeps running to restock its own shops without a single confirmed customer order behind every piece.
Delta Garments cannot answer with one number. It needs to show Cedar & Co. both a combed-yarn price and a carded-yarn price for the same basic knit style, and explain, in terms Cedar & Co.'s own buyer can act on, why the two prices differ by roughly the amount combing waste adds in raw cotton. Nile Spinning, the spinning mill that would supply either yarn, prices combed and carded yarn differently for exactly this reason: it needs more raw cotton to deliver the same finished weight of combed yarn.
The worked numberReusing the Track 2 appendix's combing-waste range directly: combing waste typically runs 12-18% of fibre by weight, and the midpoint of that range, 15%, is used here as a clearly labelled estimate, not a specific claim about Nile Spinning's own combing waste on any one lot.
If Nile Spinning needs 100 kg of finished combed yarn, it must start with roughly 118 kg of raw cotton, about 18% more raw cotton input than a carded yarn of the same finished weight, which needs no such allowance since no fibre is removed as combing waste. The course's yarn calculator applies this exact formula to Order A's own quantities: row 3 of the workbook divides Order A's full 3,075 kg finished-yarn requirement by (1 − 0.15), giving roughly 3,618 kg of raw cotton Nile Spinning would need for the whole order in combed yarn, the same calculation scaled up from 100 kg to Order A's real order size.
A common mistake is treating combed yarn as the automatically correct choice for any product, because it is smoother and more expensive, and expensive can look like "better" on a spec sheet. Combed yarn's extra cost buys a real property, a smoother, more even hand-feel, and that property is worth paying for exactly when a product's value proposition needs it. Cedar & Co.'s basic, price-sensitive stock styles are a case where that property may not be needed at all: a basic knit sold at a tight price point does not automatically earn back combing's extra raw-material cost through a higher shelf price. Quoting combed yarn by default on a style like that spends money the product's price point was never designed to absorb, and carded yarn would have served the same customer just as well at a lower cost.
Combed yarn costs more than carded yarn of the same count for a real reason: combing removes short fibre as waste before spinning, so a mill needs more raw cotton to produce the same finished weight of combed yarn, roughly 12-18% more, using a 15% midpoint estimate as about 18% extra raw cotton input. Carded yarn skips that step and keeps every fibre, which is why it costs less and is less smooth. Deciding between the two is a two-question test: whether the product needs a smooth hand-feel, and whether its price point supports combing's extra material cost. Both need to be "yes" for combed to be the right call. Defaulting to combed "because it's better" ignores that trade-off, and can quietly erode margin on a basic, price-sensitive style that never needed the extra smoothness in the first place.
Cedar & Co. sends Delta Garments a brief for its new basic knit style without specifying combed or carded yarn.
The document the learner reads, Cedar & Co.'s brief line:
Does "best quality" mean Delta Garments should automatically quote combed yarn for this style? Decide before you open the answer.
No — "best quality" is ambiguous between "smoothest hand-feel" (combed) and "best value for a basic style" (potentially carded), and Delta Garments should clarify rather than assume.
"Best quality" can reasonably mean two different things on a basic, price-sensitive style: the smoothest, most premium hand-feel available (which points to combed yarn), or the best value the style's own price point can support (which may point to carded yarn instead, since it avoids combing's roughly 15-20% extra raw-material cost). Cedar & Co.'s brief line does not say which one it means.
Delta Garments should go back to Cedar & Co. and ask whether this basic style's positioning and price point justify combed yarn's extra cost, using the two-question method above, rather than quoting combed by default because the word "best" sounds like it should mean the more expensive option. Quoting combed yarn on a style whose price point cannot absorb it either erodes Cedar & Co.'s margin or forces a price increase Cedar & Co. never asked for, on a hybrid order where some of that stock has to sell itself in the brand's own shops without a confirmed buyer covering the price.
Quoting combed yarn for a style whose price point does not support the extra cost does not have one fixed dollar figure the way a wrongly calculated fabric weight does; it is a margin risk, framed here without a specific number because no actual sale or markdown has happened in this case. If Delta Garments quoted combed yarn on Cedar & Co.'s basic knit style without checking the price point, and Cedar & Co. either accepted a higher cost than the style could really support or discovered the mismatch only after committing to production, the result is either an eroded margin on every piece sold or an unplanned price increase Cedar & Co. did not want to make on a basic style. On the standing-stock half of this hybrid order, that risk repeats on every future re-order until someone questions the yarn choice, which is exactly why the two-question method above is applied once per style, not assumed once for the whole brand.
This course's yarn calculator holds the exact calculation this lesson works through. Row 3 of the sheet, "Raw cotton input for combed yarn (~15% combing waste)," takes a finished-yarn weight in kilograms and a combing-waste percentage, and calculates the raw cotton input automatically using the formula this lesson used above: finished yarn weight ÷ (1 − combing waste).
| Column | Order A, combed (filled in) | Your style |
|---|---|---|
| Finished yarn needed | 3,075 kg (Order A's full requirement) | |
| Combing waste estimate | 15% (midpoint of the 12-18% range) | |
| Raw cotton input (calculated) | About 3,618 kg | |
| Carded yarn comparison | 3,075 kg raw cotton, no allowance needed |
Download the yarn calculator linked from this course, change the yellow input cells for your own style's finished-yarn weight, and the raw-cotton-input result recalculates automatically.
1. Why does combed yarn cost more than carded yarn of the same count?
2. Using the 15% combing-waste midpoint estimate, roughly how much raw cotton does a mill need for 100 kg of finished combed yarn?
3. A mill is quoting a style needing 400 kg of finished combed yarn, with combing waste for this lot at 18% of fibre by weight. Roughly how much raw cotton is needed?
| EN | AR | FR | TR | Meaning |
|---|---|---|---|---|
| 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. |
| 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. |
| Price point | نقطة السعر | Point de prix | Fiyat noktası | A specific price level a style is planned to sell at, used to balance a collection across cheaper and more expensive items. |
| Hybrid production model | نموذج إنتاج مختلط | Modèle de production hybride | Hibrit üretim modeli | A company that runs Make to Order and Make to Stock lines side by side, usually split by customer, product line or channel. |
You now know why combed yarn costs more than carded yarn, and how to decide when the extra cost is worth it. The next lesson uses the same yarn calculator to work out the total finished-yarn weight a whole order needs. Back to the course map