Darning and patch repair techniques

Darning rebuilds missing fabric by weaving thread across a hole. Patching replaces or covers damaged areas with new cloth. Both methods appear in Canadian household textile repair — darning wool sock heels in Newfoundland kitchens, applying linen patches to worn elbows on prairie farm shirts, reinforcing blanket edges before they unravel entirely. The choice depends on hole size, fabric type and whether the repair should show.

Swiss darning on knitwear

Swiss darning (duplicate stitch darning) follows the path of existing stitches with a tapestry needle and wool yarn, building new stitches atop worn ones before a true hole forms. When a hole exists, span the gap with parallel rows mimicking knit loops: anchor yarn at the edge of sound fabric, run horizontal lines across the hole, then weave vertical lines through them to form a grid matching the original gauge.

Place a darning egg, smooth stone or glass under the work to maintain tension. On Canadian hand-knit socks, match the needle size used in the original knit — typically 3.25–3.75 mm for worsted-weight homestead patterns. Felted areas around the hole may need trimming to prevent further migration before darning begins.

Woven darning on linen and wool broadcloth

Woven darning suits small holes in stable woven fabric — linen tea towels, wool flannel shirting. Run warp threads across the hole parallel to the fabric grain, anchoring in sound cloth 1 cm beyond the damage. Weave weft threads over and under, alternating the lift pattern of the original weave where visible.

Use a sharp needle for linen; a blunt tapestry needle reduces split fibres on loose-weave wool. Keep tension moderate — tight darning draws the hole inward and puckers the surrounding cloth.

Patch types

Behind patches (under patches)

A fabric piece sits behind the hole, turned under at the edges, and is slip-stitched in place. The face shows minimal new thread — suitable for linen shirts and visible mends on wool where a contrasting patch would look out of place. Cut patch material on the same grain as the garment. Lightweight linen patches on linen; wool flannel on wool.

Surface patches

Decorative or work-wear patches sit on the outside — elbows, knees, seat of children's wool pants. Satin stitch or buttonhole stitch around the edge secures raw patch margins and prevents fraying on linen patches. On wool, whip stitch or blanket stitch around the perimeter integrates the patch into the garment's rustic character.

Iron-on and fused patches

Commercial fused patches offer speed but shorten repair life on natural fibres — adhesive breaks down in hot laundry and stiffens drape. Hand-sewn fabric patches outlast fused products on wool and linen items that will see repeated washing.

Reinforcing before failure

Thin areas at sheet corners, blanket hems and shirt cuffs benefit from preventive reinforcement. Whip a line of running stitch 5 mm inside a fraying linen hem before the edge releases entirely. On wool sweater elbows, duplicate-stitch a thin spot with matching yarn before abrasion opens a hole — common on school layers worn through Atlantic winters.

Edge and seam repair on linen

Linen frays linearly along grain. When a side seam opens, re-backstitch through existing needle holes if they remain visible — fewer new punctures preserve fabric strength. Apply lightweight fusible interfacing strip inside a large tear only as temporary support during hand sewing; remove or replace with stitched patch support for long-term wear, following principles in CCI textile guidelines favouring reversible treatments.

Repairing household linen

Table linens see different stress than clothing — pulled threads from ring clips, centre-fold wear on large tablecloths, and frayed hems from repeated laundering. For pulled threads, stop the run with a tiny cross stitch across the loose weave line before darning the thin corridor. Store folded linens without sharp crease pressure on the same fold line year after year; rotate fold positions when putting away after holiday use.

Finishing and aftercare

Trim thread tails flush after weaving ends. Press linen repairs from the wrong side with steam; avoid flattening wool knits — reshape damp wool flat to dry. Hand-wash mended wool in cool water unless the original garment label specifies otherwise. Line-drying reduces abrasion on new darning compared with dryer tumbling.

Document patch date and thread source on a fabric label inside the garment if multiple repairs accumulate over seasons — a practice adapted from museum accession notes useful for family textiles passed between generations in Canadian households.

Review basic stitches for slip stitch and backstitch used in patching, and thread selection for matching wool yarn and linen thread to each repair type.