服装设计技术规格表

Generate a single-page technical specification sheet, A3 portrait, aspect ratio 1:1.4, black line art on white background with Pantone chips. Style: LX-DR-01, evening gown, 1970s Halston bias drape combined with 2025 circular design principles. Layout: left: front flat and back flat at 1:6 scale center: detail views at 1:2 scale (cowl neck, bishop sleeve cuff, detachable train attachment, side slit) right: bill of materials, measurement chart, title block 1970s elements: - bias-cut silhouette with cowl neckline depth 18 cm from HPS - long bishop sleeves gathered into 6 cm cuff height with covered button closure - empire seam positioned 5 cm below bust line - floor length with 20 cm side slit at left leg - bias drape at hip 2025 elements: - shell 19 momme 100 percent recycled silk charmeuse with blockchain traceability, Pantone 19-5408 TCX Deep Emerald - lining 100 percent cupro bemberg Pantone 11-0602 TCX Gardenia - detachable train length 80 cm with hidden magnetic closure at center back waist - 3D-knitted internal bodice support at bust - zero-waste pattern layout noted at 92 percent efficiency - NFC authenticity chip encased in right side seam - printed QR code care label Measurements size FR 38: center back length 150 cm from nape to hem, bust 1/2 43 cm, waist 1/2 34 cm, hip 1/2 46 cm, sleeve length 62 cm from shoulder point, sleeve cuff circumference 18 cm, sweep 1/2 75 cm, slit height 20 cm Construction: French seams throughout body using 301 lockstitch at 14 spi, seam allowance 1 cm hand-rolled hem 3 mm at bottom and train edge invisible zipper center back length 55 cm bar tack at slit top Materials and color: thread 100 percent silk size 120 to match shell hardware: two covered buttons 12 mm diameter one per cuff, six pairs neodymium magnets 8 mm diameter for train Labels: main label center back neck, care label left side seam with text "Dry clean only. 100 percent recycled silk." in English and French and Italian Render annotations in 8pt sans-serif horizontal with leader lines, no shading.