How do I sew a badge or a patch onto clothing?

Scout and Guide badges, uniform patches, name tapes and decorative patches are all the same job, and they go wrong in the same two ways: the badge ends up crooked, or it comes off in the wash. Both are solved before any stitching happens.

What you'll need

• A fine sharp needle
• Thread matched to the badge's edge, not to the garment
• A thimble, for thick badges or heavy garments
• A glue stick made for fabric, or tacking thread
• An iron and a pressing cloth

Step by step

1. Find out where it is supposed to go.Uniform badges have prescribed positions — a specific sleeve, a specific distance from a shoulder seam, a specific order relative to other badges. The organisation publishes a diagram. Guessing and then unpicking a badge from a uniform is a bad afternoon.
2. Position it with the garment on the person if possible.Or laid out exactly as worn. A badge that looks centred on a flat sleeve can sit visibly to the back when the arm is in it.
3. Hold it in place with glue or tacking, not pins.Pins let the badge rotate as you sew, and it always rotates in the direction you cannot see. A dab of fabric glue stick at the centre, or four long tacking stitches across the middle, holds it exactly.
4. Match the thread to the badge edge.Most woven badges have a satin-stitched border. Thread matched to that border disappears into it. Thread matched to the garment shows against the border, which is the opposite of what you want.
5. Sew just inside the woven border.Bring the needle up through the garment and out through the very edge of the badge's border, take a small stitch, and continue. Working within the border rather than through the body of the badge keeps the stitching invisible and avoids the thickest part.
6. Use a small backstitch or a whip stitch.Backstitch is stronger and slower; a close whip stitch over the edge is quicker and holds well for anything that is not heavily worn. Either way, keep the stitches short — 3mm or less — so the edge cannot lift between them.
7. Do not sew through both layers of a sleeve.Get one hand inside the sleeve to keep the layers apart, or slide a rolled magazine or a sleeve board inside. Sewing a badge to the front and back of a sleeve at once is the classic mistake.
8. Iron on first if the badge has adhesive, then sew as well.The heat-activated backing holds it in position perfectly while you stitch, which solves the alignment problem. Follow the temperature on the packet, use a pressing cloth, and do not rely on it alone — glue backings let go after a few hot washes.
9. Fasten off on the inside.Two small stitches under the badge edge on the wrong side, then run the thread away inside for a couple of centimetres.

Tips

• For a child's uniform with many badges, do them all in one session with the same thread and the same spacing. It looks far tidier than badges added one at a time over a year.
• A thimble genuinely helps on thick embroidered badges — the border is dense and the needle has to be pushed rather than pulled.
• If the badge will need to move to a bigger garment later, sew it on with a longer, looser stitch that unpicks easily rather than gluing it down.
• Where a garment cannot be sewn through — a waterproof, a technical jacket — the honest answer is to sew the badge to a separate patch of fabric and attach that with a fastening, rather than perforating the membrane.

Common mistakes

• Pinning rather than tacking or gluing — Pins allow rotation. A badge that has crept 5 degrees is immediately obvious and means unpicking dense stitching from a dense border.
• Sewing the sleeve shut — It is so easy to do and so annoying to unpick that it is worth putting something inside the sleeve every single time.
• Relying on the iron-on backing alone — Heat-activated adhesive survives a handful of warm washes and then peels from one corner. Iron it on to hold it, then sew it.
• Matching the thread to the garment — The stitching sits in the badge's border, so thread matched to the border vanishes and thread matched to the garment stands out against it.

If it doesn't work

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