Underpad

Skin-Friendly Diversion Layer

Basic Design Model

Medical-grade polypropylene non-woven fabric

1. Diamond-shaped diversion grooves formed by hot-pressing process

2. Corresponding to "Rapid Circulation Channel" design in Patent No. 202322965835.0

Liquid diffusion speed increased by more than 40%

Skin-Friendly Diversion Layer

Upgraded Design (Some Models)

Medical-grade polypropylene non-woven fabric + additional mesh fiber cloth diversion layer under the surface layer

M-shaped grooves designed on the mesh fiber cloth to guide the flow direction of liquid

Accelerates liquid penetration to the absorbent layer and avoids local accumulation

Composite Absorbent Layer

Polymer Water-Absorbent Core

Sumitomo (Japan) SAP (210G/m²) + fluff pulp (SAP:fluff pulp = 6:4) + wood pulp layer

Precise proportion mixing of SAP and fluff pulp, with synergistic effect of wood pulp layer

1. Absorption capacity reaches more than 30 times its own weight

2. Achieves "instant absorption and water locking" effect

Composite Absorbent Layer

Multi-Layer Composite Structure (High-End Models)

Five-layer core: Skin-Friendly Layer → Diversion Layer → Absorbent Layer → Breathable Layer → Bottom Film

Nanofiber interweaving technology adopted to enhance the structural stability of the core

Improves core strength and effectively prevents agglomeration and layering

Leak-Proof Barrier Layer

Basic Model

15μm polyethylene (PE) waterproof film

Connected with the surface layer through ultrasonic seamless bonding technology to ensure inter-layer adhesion

Water impermeability ≥ 10cm H₂O, effectively blocking liquid penetration

Leak-Proof Barrier Layer

Postoperative Special Model (Some Models)

15μm polyethylene (PE) waterproof film + TPU coating compounded on the surface

TPU functional coating added on the basis of PE film to balance water resistance and breathability needs

1. Water impermeability ≥ 10cm H₂O

2. Water vapor transmission rate reaches 850g/㎡/24h, balancing water resistance and breathability