Combed, Carded, Ring-Spun and Open-End Cotton: What the Yarn Does to Your T-Shirt

Two t-shirts can be the same fibre, the same weight and the same colour and still feel like different products, because the difference was decided at the yarn stage rather than the knitting stage. Combed, carded, ring-spun and open-end describe how raw cotton became thread. This guide explains what each term means, what it does to hand-feel, pilling and price, and exactly what to write in a tech pack so you get what you intended.

Short answer: combed and carded describe how the cotton was prepared; ring-spun and open-end describe how it was spun, so every cotton yarn is one of each. Combed ring-spun is the softest and smoothest. Carded open-end is the firmest and most hard-wearing. Carded ring-spun and combed open-end sit in between.

The four terms in one table

Preparation and spinning are two different questions

This is the confusion that costs brands money. Carded and combed describe how the cotton was prepared before spinning. Ring-spun and open-end describe how it was spun into yarn. They are not alternatives to each other; every yarn has an answer to both questions.

So a specification is really a pair. Combed ring-spun is the soft, smooth, premium end. Carded open-end is the firm, economical, hard-wearing end. Combed open-end and carded ring-spun both exist and sit in between. If your tech pack says only combed cotton, you have answered half the question and left the other half to whoever is buying the yarn.

The four combinations, side by side

Because each yarn answers both questions, there are four specifications you will actually meet on a quote or on a blank's spec sheet. The two in the middle are the ones most often shortened to just combed or just ring-spun, which is why it is worth asking for the other half every time.

What combing actually removes

Raw cotton contains fibres of varying length. Carding cleans the cotton and roughly aligns the fibres. Combing adds a further step that pulls out the shortest fibres and any remaining trash, leaving a higher proportion of long fibres running in the same direction.

Short fibres are the ones whose ends work their way to the surface with wear and washing, and those surface ends are what tangle into pills. Removing them gives a smoother face, a cleaner printing surface and a yarn that resists pilling for longer. It also removes saleable weight, which is why combed yarn costs more: you paid for cotton that is now on the floor.

How much comes out depends on the cotton and the yarn being made. Rieter, which builds combing machines, gives a noil extraction of 15 to 22 per cent for yarns of Ne 24 to 50 spun from cotton with a 30 to 34 mm staple, a band that covers finer t-shirt yarns such as 30s and 40s. Noil is the short-fibre waste the comber takes out. Its worked example starts with a lap in which 25 per cent of the fibres are short, defined as under 12.5 mm, and extracts 18 per cent. In other words, for every 100 kilos of cotton fed to the comber, roughly 15 to 22 leave as noil rather than yarn.

Ring-spun versus open-end, in the hand

Ring spinning draws and twists the fibres into a continuous strand, producing a finer, stronger, softer yarn with a slightly irregular, lively surface. Open-end spinning, sometimes called rotor spinning, is faster and cheaper and produces a yarn that is more uniform but firmer and flatter to the touch.

Neither is simply better. A ring-spun tee feels more expensive and drapes better, which is why premium basics specify it. An open-end yarn is tough, stable and cost-effective, which is why it is a sensible choice for workwear, promotional ranges and anything that will be washed industrially. Our workwear page covers where that logic applies.

The difference is built into the yarn's structure. A rotor yarn carries wrapper fibres wound around its outside, and Textile World's review of spinning technology notes that machine design can reduce them but cannot eliminate them. The article links the same structure to the lower strength of rotor yarns and to their good results on hairiness and abrasion. That matches what you feel in an open-end tee: a flatter, firmer surface that stands up to hard wear.

What this does to printing

Surface matters more for print than most brands expect. A smoother, combed, ring-spun face holds fine detail and small type better, because there is less fibre standing proud to break up the edge of a screen print. A hairier carded surface can make the same artwork look slightly soft, and it is a common reason a print looks sharper on the sample than on the bulk if the yarn specification changed in between.

If your artwork has thin lines, small text or halftones, specify the yarn as carefully as you specify the ink. Screen printing, embroidery and DTG respond differently, and DTG in particular rewards a smooth combed surface.

What to write in your tech pack

• Both halves of the specification, for example 100% combed ring-spun cotton, not just combed cotton.
• The yarn count if you have a preference, written in Ne, since a higher number means a finer yarn.
• The fabric weight in GSM, because yarn type and weight together decide the hand-feel.
• Whether the yarn must be certified, for example organic yarn for GOTS-certified production under our certificate RSC 9687.
• What matters most to you if a trade-off appears: softness, pilling resistance, print sharpness or price.

That last line is worth including. Specifications get substituted when a mill is short, and a factory that knows your priority can make a sensible call rather than a cheap one. Our tech pack template has a field for it.

How to check what you were actually sent

A label or a blank's spec sheet that says 100% cotton tells you the fibre and nothing about preparation or spinning. Hand-feel narrows it down, but two yarns can feel alike on day one and part company after repeated washing, which is when pilling shows. Three checks settle it without guesswork.

• Ask for the yarn on paper. The fabric order to the knitting mill names it, for example 30/1 combed ring-spun cotton, where 30 is the count in Ne and /1 means a single yarn. If a supplier cannot tell you what is on the fabric order, treat the yarn as unconfirmed.
• Compare against a reference. Wash the sample and a reference garment you like together, the same number of times, and compare the surfaces side by side in daylight. Fuzz and early pills on the sample but not on the reference point to more short fibres in its yarn.
• Test when it matters. For a dispute or a retailer's specification, a textile lab can run a pilling test such as ISO 12945-2, the modified Martindale method, and a fabric analysis that identifies the yarn count and spinning method.

Then hold the result. Name both halves of the yarn in your tech pack, approve the pre-production sample in that yarn and keep it sealed, so the bulk is checked against something physical rather than a word on a quote. Our guide to jersey fabric covers how yarn and GSM work together in the cloth itself.

Is combed ring-spun always worth paying for?

No, and we would rather say so. For a premium basics brand where the customer judges the garment by touch in the first three seconds, it usually is. For a promotional run, a heavily printed merchandise drop or a uniform programme that will be washed hot every week, carded open-end can be the better engineering decision as well as the cheaper one.

The mistake is not choosing the economical yarn. The mistake is choosing it by accident, discovering the hand-feel at bulk, and having no sealed sample to point at. Approve a pre-production sample in the actual yarn, and the question settles itself.