Yarn Cost Breakdown: Acrylic vs Wool vs Cashmere vs Cotton

Most buyers ask for a yarn quote and stop at the number on the supplier's spreadsheet. That number is the end of a long chain of decisions, each one either inflating or deflating the final cost. If you don't know what's inside it, you can't negotiate it.

This article breaks down the real cost structure of four yarn types used in knitted scarves: acrylic, wool, cashmere, and cotton. The numbers below are based on factory-level data from Chinese and Indian spinning mills circa early 2026. They aren't textbook estimates. They will shift with commodity markets and exchange rates. But the cost structure — the why behind the number — doesn't change.

What's Actually Inside a Yarn Price

A yarn supplier's quote is never just "raw fiber + profit." Five layers stack on top of each other before you see a per-kilo number:

Layer 1 — Raw Fiber Cost: The commodity price of the fiber at market, quoted per kg. This is the only line item buyers usually ask about, and ironically, it's often the least controllable.

Layer 2 — Spinning Loss (Waste Rate): Not every gram of raw fiber becomes usable yarn. Short fibers, neps, and contaminants are removed during carding and combing. The waste rate typically ranges from 5% (synthetic fibers) to 20%+ (cashmere). This loss is priced into the yarn — you pay for what gets thrown away.

Layer 3 — Spinning Cost: Labor, electricity, and machinery depreciation per kg of output. Finer yarns take more time per kg, so spinning cost rises as Nm increases. A 2/28 Nm yarn costs significantly more to spin than a 2/12 Nm of the same fiber.

Layer 4 — Dyeing Cost: Fiber-specific. Some fibers dye easily (acrylic, cotton), some are stubborn (cashmere requires lower temperatures and longer cycles). Dark colors and brights cost more regardless of fiber.

Layer 5 — Margin & Logistics: The spinner's markup plus freight to your knitting factory. These are more negotiable than Layers 1–4, but only if you understand what Layers 1–4 actually cost.

The Four Yarns, Compared

Acrylic: The Cost Floor

Acrylic is the cheapest option by a wide margin, for structural reasons. The raw material is a petroleum derivative, produced at massive scale with highly predictable fiber length and denier. Spinning loss is minimal (4–6%). Dyeing is straightforward.

Typical price range for 2/28 Nm acrylic, dyed: $3.20–$5.50/kg. At 300g per scarf, yarn cost per piece is roughly $0.96–$1.65. The cost doesn't rise much with MOQ reduction because the material itself is so cheap.

Wool: The Middle Ground with Wide Variance

Wool pricing has more range than any other fiber because "wool" isn't one thing. The difference between 21-micron lambswool and 28-micron carpet-grade wool is a factor of 3–4x in raw fiber cost.

For knitted scarves, the two relevant categories:

• Lambswool (19–23 micron): $14–$22/kg dyed
• Merino wool (17–19 micron): $18–$28/kg dyed

Wool's real cost driver is price volatility. Australian merino prices at auction can swing ±15% within a single quarter. If your quote is more than 30 days old, the price is probably wrong.

Cashmere: The Premium That Compounds

Cashmere is expensive for a reason that compounds across all five cost layers. Raw fiber trades at $65–$110/kg at source (Inner Mongolia, March 2026), depending on grade (Grade A: ≤15.5 micron, ≥34mm staple vs. Grade B: 15.5–17 micron). But raw fiber price is only the beginning.

Cashmere's spinning loss is the killer: 18–25% waste rate in worsted spinning. For every 100 kg of raw cashmere, only 75–82 kg becomes usable yarn. The 18–25 kg of short fibers and guard hair combed out? You paid for it.

Grade A cashmere yarn, 2/28 Nm, dyed: $95–$135/kg. At 200–250g per scarf, yarn cost per piece is $19–$34 — just for the yarn. This is why a real cashmere scarf can't cost $30 at retail.

Cotton: Not as Cheap as You Think

Good cotton yarn for knitted scarves (combed, ring-spun, long-staple) costs $6–$10/kg dyed — 2–3× acrylic. The spinning method matters enormously: open-end cotton is cheaper ($4–$6/kg) but coarser; ring-spun, combed cotton ($6–$10/kg) is the standard for quality.

Cotton also has a weight penalty. A cotton scarf at the same dimensions as an acrylic scarf will be 15–25% heavier because cotton fiber density is higher. More kg per piece, higher freight.

Side-by-Side: What You Actually Pay Per Scarf

Prices as of Q1 2026. Ranges reflect MOQ, color complexity, and supplier tier.

What MOQ Does to These Numbers

At lower MOQs, yarn cost rises — sometimes sharply. The reason isn't that fiber gets more expensive. It's that the spinner has fixed setup costs: machine changeover, dye-bath preparation, quality testing per lot. At 100 kg, the per-kg setup burden is punishing. At 1000 kg, it's negligible.

For acrylic, the MOQ penalty is mild (15–25% at 100 vs 1000 pieces). For cashmere, the penalty can exceed 40%, because cashmere dye lots are small to begin with and a tiny dye lot still requires the same bath preparation and testing.

Seasonal Price Swings

If you're quoting wool or cashmere with 90-day validity, build in a buffer. A fixed price for 90 days on cashmere is essentially giving the retailer a free option on the fiber market.

Two Hidden Costs Most Buyers Miss

1. Yarn Count Mismatch

Suppliers sometimes quote 2/28 Nm, then deliver 2/26 Nm. A 2/26 Nm yarn is approximately 7% heavier than 2/28 Nm. At cashmere prices, that's an extra $2–$3 per scarf absorbed without realizing it. The fix: include yarn count verification in QC. A wrap reel and scale tell you the truth in three minutes.

2. Color Surcharge Stacking

Per-color premiums are standard: dark colors, brights, and whites each carry a surcharge. If your scarf uses three colors and each is a premium category, the surcharges multiply because each color is dyed in separate baths. A three-color cashmere scarf in navy, bright red, and cream can carry a 15–20% surcharge per color. Know it before you cost the product.

How to Use This Data in a Supplier Negotiation

Don't walk in and say "the internet says acrylic should be $4/kg." Ask these three questions instead:

1. "What micron is the wool in this quote?" — Forces the supplier to commit to a spec, not just a name.
2. "What's the spinning loss rate for this batch?" — Suppliers who can answer without hesitation run real cost accounting.
3. "If I take stock-service colors instead of custom dyeing, what's the price difference?" — The single fastest path to a lower yarn price without changing fiber quality.