Product Engineering: Materials & Absorbency, By DesignA sanitary napkin is a precisely layered fluid-management system, and how it performs is decided in engineering. This is the most technical stage of our process and the one where two decades of specialism shows. We design every layer — from the topsheet that touches skin to the super-absorbent core that locks fluid away — for a defined absorbency, dryness and reliability target, all within the cost envelope set during discovery and the safety envelope defined by IS 5405.
Size, shape & absorbency designWe engineer across the full size ladder — panty liners (~150–180 mm), regular (~240 mm), large/XL (~280 mm), XXL and overnight (~320 mm and above), and extended-length maternity and postpartum pads. Shape, wing geometry, embossed channels and leak guards are designed to the absorbency class your product promises.
Material selection & innovation
Every layer is a deliberate choice:
Topsheet / CoverSpunbond non-woven, hot-air-through (air-through) non-woven, perforated or embossed PE film, cottony-soft, and treated options (e.g. aloe vera, anion strip) for comfort and dryness positioning.
Acquisition & Distribution Layer (ADL)Manages the speed of fluid intake and spreads it evenly across the core to prevent pooling and leaks.
Absorbent CoreFluff (wood) pulp blended with SAP (super-absorbent polymer) for capacity and retention; airlaid-paper cores for ultra-thin constructions.
Back SheetBreathable PE film or laminated non-woven, balancing leak protection with skin comfort.
Adhesive SystemPositioning and wing adhesives with release paper, engineered for hold without residue.
Construction & performance · Engineered for reliabilityLayers are engineered to work as one system — fast strike-through, low rewet, high retention under pressure, and secure adhesion. We design for consistency at scale, so the ten-thousandth pad performs like the first. Every construction is defined against the IS 5405 parameters it will later be tested on, so nothing fails at the testing stage.
