Mirror-Work Dupattas: Production Planning and Pressing Faults
A boutique orders 15 chiffon dupattas, each 2.25 m × 0.90 m, with a 6 cm mirror-work border at both ends; delivery is in 8 days. Two embroiderers are available for 6 hours each per day. The first sample took 3.5 hours, but the chiffon puckered around 12 mirrors and two mirrors cracked during final pressing; the presser used a hot iron directly on the work. The dyed magenta fabric crocks onto white cloth when rubbed. The unit has 60/8 and 70/10 needles, fine cotton thread, metallic thread, tear-away backing, water-soluble stabilizer, wooden hoops, and a steam iron. There is no embroidery machine. The boutique will inspect borders for mirror security, puckering and colour transfer, and will reject any dupatta with a visible press mark.
1. Assess whether 15 dupattas can be delivered in 8 days. Show the hours and a day-wise plan.
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Work content at the sample rate: 15 × 3.5 = 52.5 embroiderer-hours. Available: 2 × 6 × 8 = 96 hours, so the load is 55% of capacity; the order is feasible if the sample time falls to about 3 hours after practice, giving 45 hours. Plan: Day 1, test on a 20 cm square of the same chiffon with a 60/8 needle, fine cotton thread, water-soluble stabilizer and a wooden hoop; confirm no puckering and no colour transfer; mark all 15 borders with a water-soluble pen. Days 2-5, each worker completes two dupattas per day at 3.5 hours per dupatta, with a shared check after each border. Day 6, complete the last three and inspect. Day 7, press from the reverse and attach care labels. Day 8, final QC and packing. Keep a 15% time buffer for thread breaks and mirror breakage; do not schedule the last dupatta on day 8.
2. Explain the likely causes of puckering and mirror cracking, and give the corrected procedure.
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Puckering around mirrors: the chiffon is unstable and the hoop was pulled too tight in one direction; the stitch tension was too tight; the needle was too large; the backing was not attached; or the mirror was anchored by pulling the thread across the grain. Correct procedure: tack water-soluble stabilizer behind the border; hoop the fabric taut like a drum but not stretched out of shape; use a 60/8 needle and fine cotton thread; set tension so the stitch lies flat; anchor each mirror with close buttonhole or herringbone stitches worked evenly around the rim, not by tightening a running thread. Mirror cracking: direct hot iron, uneven pressure, a mirror with a rough edge, or too few holding stitches allowing the mirror to flex. Correct: press only from the reverse over a thick towel, low heat, no steam, never directly on the mirror; test one sample; anchor with at least 12 evenly spaced stitches; discard chipped mirrors before stitching. If a mirror cracks during pressing, remove it and redo the area; do not deliver it.
3. How will you control colour transfer and what acceptance checks will you apply?
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Colour transfer: the magenta fabric crocks at wet rub, so test a 10 cm strip by rubbing with white cotton, then wash one sample in cold water with mild detergent and a colour catcher. If colour bleeds, do not wash the finished dupattas; label them dry clean only. Stitch with colourfast thread; do not use a hot iron on damp fabric. Keep finished pieces in acid-free tissue, not in plastic, and separate from light colours. Acceptance checks for all 15: mirror security (gentle pull on each mirror, no movement, no cracked edge); puckering (no more than 2 mm of raised fabric around a mirror, viewed in daylight); press marks (none); colour transfer (white cloth rub dry and wet, rating at least 4); border width 6 cm ± 0.3 cm; length 2.25 m ± 1 cm; no loose thread or pen marks. Record results on a simple inspection sheet; reject and rework any piece that fails. Ask the boutique to sign the approved sample before bulk delivery.