Why Double-Cloth Construction (Outer Wool + Inner Cotton) Works Better Than Lining or Blending

• Integral Double Cloth:​ Two distinct warp and weft systems are interlaced at intervals (stitching points) to create a single inseparable fabric — the wool face and cotton back are locked together during weaving, not glued or fused. This eliminates delamination risk even after repeated washing and dry-cleaning.
• Wool Face Provides Structure & Insulation:​ The outer layer uses worsted or semi-worsted wool yarn (typically 48S–60S quality, 20–26 micron) — gives the fabric its tailored drape, natural crease recovery, and thermal retention. The wool face also accepts dye differently than the cotton back, enabling subtle heather or two-tone effects.
• Cotton Back Provides Skin Comfort:​ The inner layer is a finer cotton yarn (40S/1–60S/1 combed) in a plain or jersey knit structure — soft, absorbent, and non-irritating. Because the cotton layer is the only surface contacting the wearer’s skin, even moderately micron wool (26–28µ) can be used without itch complaints.
• No Separate Lining Required:​ Garment makers save one construction step — no need to cut and sew a separate lining fabric; the double cloth functions as a self-lined shell.

Key Fabric Specifications (From Nandi Double-Layered Wool Product Page)

• Product Name:​ Double-Layered Wool Fabric
• Construction:​ Double cloth (two-layer woven integral construction — wool face, cotton back)
• Face (Outer) Layer Composition:​ 100 % Wool (fine merino / lambswool — 20–26 micron typical; specify grade per target price point)
• Back (Inner) Layer Composition:​ 100 % Cotton (combed, 40S/1–60S/1)
• Overall Weight Range:​ 220–320 g/m² (lighter weight for shirts, mid-weight for overshirts, heavier for light jackets)
• Width:​ 57/58″ (145 cm) standard
• Available Finishes:​
  • Anti-pilling treatment on wool face (reduces fuzzing in high-friction areas like collar/cuff)
  • Softener on cotton back (improves hand feel against skin)
  • Stain-resistant / water-repellent finish on wool face (optional — for outerwear-oriented styles)
  • Enzyme or bio-polish on cotton back (reduces pilling on inner layer)
• Colour Options:​ Piece-dyed solid colours; yarn-dyed checks/plaids (traditional tartans, windowpanes, glen plaids); heather effects via wool/cotton dye-affinity contrast
• MOQ:​ 200 m / colour for piece-dyed; 500 m / colourway for yarn-dyed patterns
• Sample Availability:​ 1 m cut or A4 swatch card available prior to bulk
• Origin:​ Foshan, Guangdong, China — mill-direct pricing & QC

Typical Application Scenarios

• Autumn / Winter Casual Button-Down Shirts:​ The primary use-case — a shirt that looks like a crisp wool flannel but feels soft against the neck and wrists. Ideal for smart-casual office, weekend wear, and layering under sweaters or chore coats.
• Overshirts / Shacket (Shirt-Jacket):​ Heavier weight (280–320 g/m²) with a slightly looser weave — worn open over a tee or turtleneck as a lightweight jacket alternative. The wool face provides weather resistance; the cotton back adds warmth without bulk.
• Lightweight Hunting / Outdoor Shirts:​ Wool’s natural odour resistance and insulating properties when wet make this double-cloth suitable for upland hunting or hiking shirts — cotton back keeps the wearer comfortable during high-exertion activity.
• Uniform Shirts for Cool-Weather Hospitality / Corporate ID:​ Staff who work in air-conditioned or drafty environments benefit from the warmth without the itch; the tailored appearance meets dress-code requirements.
• Private-Label Winter Shirt Collections:​ Brands wanting a differentiated “wool comfort” story — Nandi can supply RSL-compliant dyes, Oeko-Tex® cert, and custom finish combinations.

Garment Manufacturing Considerations for Double-Cloth Fabrics

1. Cutting:​ Use a sharp rotary or straight knife with moderate downward pressure — the two-layer structure can drag against a dull blade, causing layer separation at cut edges. A serrated-edge blade or ultrasonic cutter (if available) gives cleaner results.
2. Needle Selection:​ Use a fine ball-point needle (size 70/10–80/12) to penetrate both layers without piercing or breaking wool fibres — a sharp-point needle can cut wool yarns, leading to fraying at seams.
3. Seam Finishing:​ Overlock (serger) or flat-felled seams recommended — the double cloth is thicker than single-layer shirting, so allowances should be 1.2–1.5 cm to accommodate seam bulk. French seams may be too bulky unless the fabric is on the lighter end (≤ 260 g/m²).
4. Fusing / Interlining:​ If using fusible interlining in collar/cuff, test on a scrap first — the wool face may require a lower-temperature fusing film (120–130°C) to avoid scorching or glazing the wool fibres.
5. Laundering / Care Labelling:​ Recommend “Machine wash cold, gentle cycle, tumble dry low or line dry” — the double cloth is generally washable, but dry-cleaning preserves wool-face appearance longer. Include both care options on the label.

Care & Longevity of Double-Layered Wool Fabric

1. Machine Wash Cold (≤ 30°C) with Mild Detergent:​ Avoid agitation-heavy cycles — use delicate/wool programme if available. Do NOT use chlorine bleach (damages wool).
2. Tumble Dry Low or Line Dry Flat:​ High heat can shrink the cotton back differentially, causing the fabric to curl or pucker. Line drying flat preserves the two-layer bond.
3. Steam Iron Medium-Hot (Wool Setting):​ Press on the wool side with a pressing cloth to avoid shine; avoid direct iron contact with the cotton back at high heat (can yellow cotton).
4. Store Folded or on Padded Hangers:​ Heavy wool-cotton double cloth can stretch on thin wire hangers — fold for long-term storage to maintain shape.
5. Pilling Management:​ Some surface fuzzing on wool face is normal after 10–15 wears — use a fabric shaver gently; anti-pilling finish (available on request) reduces this significantly.

Sourcing Checklist for Shirt Manufacturers & Winter-Collection Buyers

1. ✅ Specify target weight​ — 220–260 g/m² (shirt) / 270–320 g/m² (overshirt/jacket).
2. ✅ Confirm wool grade / micron​ — 20–22µ (premium soft) vs. 24–26µ (standard, lower cost) vs. 28µ+ (rugged, not for direct-skin without cotton back).
3. ✅ State colour / pattern type​ — piece-dyed solid / yarn-dyed check or plaid / heather effect.
4. ✅ Request sample swatch​ (A4 or 1 m cut) for hand-feel, drape, and wash-test evaluation.
5. ✅ Ask about certifications​ — Oeko-Tex® Standard 100, Responsible Wool Standard (RWS) if required, REACH SVHC compliance.

Conclusion: The Warmth of Wool, the Comfort of Cotton — Woven Together