Disposable breast pads are core hygiene products for lactating women, designed to absorb excess breast milk, prevent leakage and keep the chest dry. Their key features focus on absorbency, comfort, leak-proof performance and hygiene safety, with details as follows:

1. Core Material: Multi-Layer Structure for Comfort & Absorption

Surface Layer: Mostly made of soft non-woven fabric (e.g., spunlace or hot-rolled non-woven) or cotton-like material. It’s skin-friendly, breathable, and quickly guides milk into the middle layer to avoid sticking to the skin.

Absorbent Layer: The core part, usually composed of wood pulp + high molecular water-absorbing resin (SAP). SAP can quickly lock in milk (absorption capacity up to 10-20 times its own weight) and prevent reverse osmosis, keeping the surface dry.

Bottom Layer: Adopts waterproof PE film or breathable waterproof material. It blocks milk leakage to clothes while ensuring air circulation, reducing stuffiness and skin irritation.

2. Strong Absorption & Anti-Reverse Osmosis

Rapid Absorption: The multi-layer absorbent structure can absorb excess milk in 1-3 seconds, avoiding overflow even during milk let-down (a common issue for lactating women).

Lock-Water Stability: SAP forms a gel after absorbing milk, which won’t break or clump even when moving, and effectively prevents reverse osmosis—pressing the pad lightly won’t cause milk to seep back.

3. Leak-Proof Design: Fit & Protection

3D Stereo Guard: Most products have elastic stereo side guards (height 2-3cm) that fit the curve of the chest, blocking milk from leaking from the sides during activities (e.g., bending over, walking).

Ergonomic Cutting: Adopts a "dome-shaped" or "butterfly-shaped" design that fits the breast shape, avoiding shifting or folding when wearing bras.

4. Hygiene & Safety: Suitable for Sensitive Skin

Sterile Independent Packaging: Each pad is individually sealed, sterile (complies with GB 15979-2002 "Hygienic Standard for Disposable Sanitary Products") and convenient for carrying outside.

Safety Certification: Formal products are free of fluorescent agents, formaldehyde, and irritant chemicals. Many high-end models pass "maternal and infant Class A safety testing" and are suitable for women with sensitive skin or postpartum fragile skin.

5. Portability & Invisibility

Ultra-Thin Design: The thickness is usually 1-3mm (after absorption, it swells slightly but remains thin), which is invisible under tight-fitting clothes and won’t affect the appearance.

Lightweight & Compact: Each independent package is about the size of a palm, easy to put in a handbag or diaper bag for emergency use when going out.

6. Additional User-Friendly Features

Adhesive Strip: Some pads have 1-2 adhesive strips on the bottom layer, which can be stuck to the inner side of the bra to fix the pad and prevent slipping.