What is the difference between a hot-cut border and a merrow border?

What each border is

A merrow border is a stitched wrap. The patch is cut to a simple outline first, then an overlock machine loops thread over the raw edge and around the back. The rim stands up, it is even all the way round, and there is no loose fabric left to unravel. On our order tools this edge is named Merrow. It is also called a merrowed border or an overlock border. The word comes from the overlock machines that made the stitch common, not from a thread color or a patch shape.

A heat-cut border is made in the other order. The design is stitched first, usually with a satin stitch just inside the future edge, while the patch is still on a larger sheet of fabric. A hot knife or a laser then cuts along that stitch and melts the edge shut. The rim stays thin and flat, and it can follow an outline an overlock stitch cannot wrap. On our order tools this edge is named Heat-cut. The same finish is widely called hot-cut. On a printed patch we also call the cut-to-the-design version a die-cut edge, and on woven patches the same sealed cut is sometimes called laser-cut.

Which shapes each one suits

Merrow needs a smooth outline. It suits circles, ovals, squares, rectangles, and shields: shapes with gentle corners and no notches. A sharp inner corner, a tight curve, or a hole through the design gives the overlock thread nowhere even to sit, so those outlines are not merrowed.

Heat-cut handles the rest. A mascot silhouette, a logo that is itself the shape, a cross with points, a state outline, or any cutout is cut and sealed to the art. The patch becomes the shape, rather than a badge with a picture set inside a frame.

Look, wear, and size

A merrow border reads like a frame. It stands off the garment, often in a contrasting thread such as gold on navy, and it gives a sew-on patch a clear line to stitch along. That is the classic edge on uniform shoulder patches, scout badges, and club crests.

A heat-cut edge lies close to the cloth, so the artwork is the outline. That is the look most brand and fashion patches want. Because the rim is only a thin sealed line, lettering and fine detail can sit closer to the edge, which matters on a small patch. A satin stitch just inside the cut keeps the edge looking finished.

Both edges are made so the fabric does not unravel, and both are washed with the garment. The merrow wrap is the tougher rim where a patch rubs on a strap, a seat belt, or a pack. A heat-cut edge is sealed, so it does not fray, but the thinner line shows abrasion sooner in those same spots.

The border does not change the size range or the price. Embroidered patches run from 1.5 inches to 12.5 inches on the longest side, and choosing Merrow or Heat-cut does not add a per-patch charge. On a patch at the small end, the raised merrow rim takes a larger share of the face, so a design with text close to the outline is the easier one to heat-cut.

Which patch types use them

Embroidered patches take either edge, and both are included. Woven patches offer the same choice. Printed patches include a merrowed border as standard, and a die-cut edge that follows the design is included too. Chenille includes a merrowed border and is made for bold, simple shapes such as varsity letters. A very intricate logo is a better fit as embroidered or woven with a heat-cut edge.

PVC is molded rubber. The edge is the mold, not a stitch and not a cut seal, so a PVC patch uses neither a merrow border nor a heat-cut border.

Felt and velveteen borders are a different finish. They are quoted by hand as a special order. They are not a stand-in for Merrow or Heat-cut, and they are not a line on the self-serve price.