1. The Vulnerability of Newborn Skin

At birth, infant skin lacks a fully mature acid mantle, with an epidermis 30% thinner than adult skin. Ordinary spunbond nonwoven fabrics possess neutral or slightly alkaline chemical residues from surfactant finishing agents, which can disrupt delicate skin lipids upon repeated friction.

2. Hydrolysed Silk Protein Infusion

Tingshuang's research team developed a gentle finishing bath combining 100% natural hydrolysed Bombyx mori mulberry silk protein amino acids (sericin and fibroin) with weak organic fruit acids. Applied via 3D hot-air perforation nonwoven machinery:

• Permanent pH 5.5 Buffering: Maintains an acid buffering capacity capable of resisting alkaline urine surges for up to 10 consecutive hours.
• 42% Lower Coefficient of Friction: The silk fibroin fibers coat nonwoven filament bundles, creating a cloud-soft micro-embossed surface that glides smoothly over sensitive groin folds.
• 18 Essential Amino Acids: Provides natural biocompatible nourishment that accelerates micro-wound re-epithelialization.