The collar is the focal signature of any polo shirt. While the body fabric provides comfort and breathability, the collar establishes whether the garment looks crisp and executive or sloppy and fatigued. A poorly engineered collar curls at the edges after two washes—an issue known in garment manufacturing as “bacon collar.”
At Polos Inc, we operate dedicated computerized flat-bed knitting machines in our Tirupur facility to engineer custom ribs, jacquard collars, and multi-tone tipping bands. Here is our engineering breakdown of flat knit collars, jacquard knitting, and how to design tipping polo shirts that retain their structured silhouette through hundreds of wear cycles.
What is a Flat Knit Collar?
Unlike standard circular knitting machines that produce continuous cylindrical tubes of fabric for t-shirt bodies, flat-bed knitting machines knit individual collar components horizontally. The yarn is guided back and forth across a flat needle bed, allowing precise tensioning, structured rib gauges (typically 12-gauge or 14-gauge), and individual color changes per row.
| Collar Type | Knitting Method | Key Structural Feature | Ideal Corporate Application |
|---|---|---|---|
| Solid Rib Flat Knit | Single yarn feed, 1×1 or 2×2 rib | Dense, clean, anti-curl edge | Classic corporate uniforms, formal company attire |
| Single & Double Tipping | Striped edge feeder program | Contrast stripes on collar and sleeve cuffs | Smart-casual business apparel, brand merchandise |
| Intarsia & Jacquard Knit | Multi-needle pattern programming | Custom woven company initials, logos, geometric motifs | Premium executive collections, luxury private labels |
| Self-Fabric Collar (Fused) | Cut from body fabric with inner fusible interlining | Dress shirt collar appearance | Executive board meetings, golf country club wear |
Why Flat Knit Ribs Prevent “Collar Curling”
Collar curling happens when collar ribs are knitted with insufficient yarn density or lack spandex/elastane stabilization at the edge. To eliminate this, Polos Inc implements two critical manufacturing safeguards:
- High Yarn Count & Dense Gauge: We knit our collars with compact 2/30s or 2/40s combed cotton yarn with tight loop formation, creating self-supporting structural rigidity.
- Spandex Inlay on Leading Edge: Micro-filaments of heat-resistant Lycra are woven directly into the outer edge of the collar, allowing it to stretch over the head while springing back to a crisp fold.
Explore our engineering capabilities on our Flat Knit Polo T-Shirts Manufacturer page.
Understanding Tipping Collar Design Styles
Adding contrast tipping transforms a basic polo into an eye-catching branded uniform:
- Single Edge Tipping: A clean 2mm to 4mm contrast stripe along the outer rim of the collar and sleeve ribs.
- Double Tipping: Two parallel stripes separated by the base collar color (popularized by heritage British tennis apparel).
- Sandwich / Contrast Collar Stand: A hidden pop of contrast color inside the neckband and button placket, visible only when the top button is unfastened.
- Pintee & Micro-Pattern Weaves: Textured mini-waffle or dotted collar knits developed in our proprietary collections.
View visual design examples on our Tipping Collar T-Shirts Tirupur gallery.
Matching Collars with Sleeve Ribs & Button Plackets
A truly cohesive corporate polo requires harmony between the collar, sleeve cuffs, and front placket. We program our flat knit machines to produce matching collar-and-cuff pairs simultaneously from the same dye lot, guaranteeing zero shade variation between your shirt collar and armbands.
Design Custom Knitted Collars for Your Brand
Ready to engineer custom tipping stripes, jacquard logos, or heavy-duty corporate polo collars? We support custom collar development starting from MOQ 100 pieces.
💬 Consult with Our Collar Engineer on WhatsApp (+91 98433 50000)
Or explore our Bulk Wholesale T-Shirts catalogue.





