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Fleurette — Product & Production Systems

Cheat sheet

Printable study sheet: formulas → definitions → topic notes → traps.

Formulas

~40% stitching labour ↓ ; ~25% cycle ↓

Ultrasonic weld R&D 1.5–2.5× throughput target

~40% stitching labour reduction ; ~25% cycle-time reduction (jigs + automation)

1.5–2.5× projected throughput (ultrasonic fabric welding R&D)

Definitions

IS 17514: Fabric qualification
IS 5405: Sanitary napkin standard path
DFMA soft goods: Sewability & layered BOM
IS 17514:2021: Fabric qualification methods (strikethrough, wicking, hydrostatic)
IS 5405:2025: Related sanitary napkin standard compliance path
BIS / factory licensing: Regulatory path for commercial manufacturing

Topic-wise short notes

Study these first — one block per syllabus topic. Then read the deep notes below.

Product & regulatory

Multi-layer absorption/wings; BIS/factory licensing path.

Ops systems

Jigs + automation + ERPNext attendance/payroll/inventory.

Exam traps & quick notes

Role: Production Systems & Design Engineer (2025–Present).
Soft-goods DFMA: absorption layers, wing seals, bend geometry for stitchability.
Quality = process + fixtures + data — not heroics.

Comprehensive notes

Product design & regulatory

Multi-layer reusable pad design in SolidWorks — selective absorption, wing-sealed barriers, geometry for fit/stitch. Fabric quals per IS 17514; compliance path IS 5405; BIS certification and factory licensing for scale.

External: Engineering Toolbox ↗

Jigs, automation, ERP

End-to-end flow standards + stitching jigs + automated stitching → ~40% labour / ~25% cycle. ERPNext for attendance, payroll, inventory; extending to live line data. Ultrasonic roller welding R&D for throughput.

External: Engineering Toolbox ↗

Interview Q&A — Fleurette

Q. How did you cut cycle time without killing quality?

Standardize the process, fixture the critical ops (jigs), automate the bottleneck stitch, and instrument with ERP — quality becomes process-owned, not hero-owned. Tie to IS/BIS evidence.

Q. What’s different about soft-goods vs metal fab?

Material anisotropy, sewability, layered BOM, and regulatory fabric tests — DFMA still applies but the constraints are stitch path and compliance labs, not only FEA.

External: Engineering Toolbox ↗