Chitosan Medical Absorbent Pad

I. Product Overview

The Chitosan Medical Absorbent Pad is a natural marine bio-based functional medical dressing substrate. The core raw material is chitosan (a chitin derivative) purified from marine crustaceans such as shrimp and crab shells, scientifically blended with viscose and polyester fibers to form a non-woven absorbent core. This product is a pure natural, biodegradable biomaterial free of chemical synthetic irritants, with inherent natural antibacterial and hemostatic repair properties, differentiated from conventional synthetic fibers and ordinary absorbent cotton. It offers excellent exudate absorption, forming a warm protective film upon contact with wound exudate, combining multiple functions: water absorption and locking, natural antibacterial action, hemostatic assistance, and gentle wound repair. Skin-friendly, hypoallergenic, and non-irritating, it is widely applicable for various acute and chronic wounds, minimally invasive wounds, and sensitive skin wound care. Available in rolls, sheets, and custom-cut pieces, it is compatible with all types of mid-to-high-end medical dressings and medical aesthetics repair dressing production.

II. Core Material Principle

Chitosan is the only naturally occurring alkaline polysaccharide biofiber with a positive charge. Relying on its unique biological molecular structure, it can actively attract and adsorb negatively charged bacteria, wound impurities, and inflammatory exudate, inhibiting bacterial growth at the source. Meanwhile, the fiber's porous, fluffy structure provides excellent hydrophilic liquid absorption, rapidly absorbing wound exudate and securely locking it in. Upon contact with wound body fluids, it forms a thin, breathable moisture-protection film, creating a gentle moist healing environment. It does not adhere to new wound tissue, gently repairs damaged skin tissue, and is suitable for long-term wound care and maintenance.

III. Core Product Advantages

✅ Natural biomaterial, ultimate skin-friendly and hypoallergenic
Derived from natural marine chitin purification, green and biodegradable, free of fluorescent agents, chemical residues, and irritants. Excellent biocompatibility allows direct contact with broken wounds, sensitive skin, and delicate skin. Long-term application causes no skin stuffiness, allergies, or irritation.

✅ Natural antibacterial, reducing infection risk
Leveraging chitosan's unique biological properties, it provides broad-spectrum inhibition of common wound pathogenic bacteria, adsorbing wound bacteria and metabolic impurities. It effectively reduces wound inflammation and exudate odor, continuously purifying the wound microenvironment and lowering the probability of wound infection and recurrent inflammation.

✅ High-efficiency water absorption and locking, anti-rewet and anti-maceration
The fiber's porous, fluffy structure provides fast absorption speed and large capacity, rapidly absorbing wound tissue fluid, pus, and minor bleeding. Water-locking performance is stable, with minimal rewet or side leakage under pressure, effectively preventing peri-wound skin maceration, whitening, and erosion.

✅ Hemostasis assistance and repair, accelerating wound healing
Chitosan's positively charged molecules promote platelet aggregation, providing rapid superficial hemostatic assistance. It conforms to damaged wounds forming a protective film, isolating external friction and bacterial invasion, promoting granulation tissue growth and epithelial cell migration, and shortening the wound healing cycle.

✅ Non-adherent to wound, painless dressing change without secondary damage
The moist protective film isolates the dressing from new granulation tissue. During dressing changes, there is no adhesion, no tearing pain, and no fiber residue — completely avoiding the secondary wound damage caused by traditional cotton pad dressing changes, providing a superior care experience.

✅ Stable structure, suitable for scaled mass production
Fibers are tightly compounded with no shedding, delamination, or collapse after absorption. The fabric has high flatness and excellent toughness, supporting deep processing including slitting, die-cutting, adhesive lamination, embossing, and perforation — compatible with high-speed production line batch manufacturing.

IV. Reference Technical Specifications (Full Customization Supported)

Core Raw Material: Natural chitosan fiber + viscose/polyester fiber

Core Features: Natural antibacterial, high-efficiency absorption, hemostatic assistance, moisture repair, non-adherent to wounds

Weight Range: 80–600 g/m²

Absorption Ratio: ≥10–25 g/g (saline, customizable as needed)

Thickness Range: 0.5–5 mm

Product Form: Non-woven rolls, custom-cut pads, custom die-cut shapes

Product Color: Natural off-white, light beige (natural material color)

Optional Processes: Smooth finish, diamond embossing, micro-perforation, silver-ion compounding, multi-layer composite, custom adhesive backing

V. Application Scope

1. Chronic hard-to-heal wounds: Pressure ulcers (bedsores), diabetic foot ulcers, lower limb venous ulcers, granulation hyperplasia wounds, recurrent exudate inflammatory wounds
2. Acute superficial wounds: Daily abrasions, cuts, skin lacerations, post-operative minimally invasive incisions, superficial bleeding wounds
3. Burn wounds: Superficial burns, sunburn wounds — moisture soothing, antibacterial repair, reducing scab hyperplasia
4. Medical aesthetics minimally invasive wounds: Microneedling, fractional laser, hydra-facial post-procedure wound repair — soothing redness, antibacterial anti-inflammation, accelerating recovery
5. Sensitive skin dedicated care: Delicate skin, children's skin, allergy-prone skin superficial wound protection — gentle, non-irritating care

VI. Product Positioning and Differentiation

Compared to conventional absorbent pads and chemical antibacterial absorbent pads, the Chitosan Medical Absorbent Pad focuses on four core advantages: pure natural biological antibacterial action, additive-free repair, gentle hypoallergenic properties, and hemostatic skin nourishment. It achieves natural antibacterial effects without chemical antibacterial agents, combining absorption, protection, and repair in one product. Compared to alginate's emphasis on gel hemostasis, chitosan leans more toward gentle care, long-term antibacterial action, and sensitive skin compatibility. It is the preferred substrate for medical aesthetics dressings, premium care dressings, and sensitive skin wound care consumables.

VII. Supporting Services

We support free sample prototyping, fiber ratio adjustment, and customization of weight, thickness, and dimensions. Silver ions and other functional components can be compounded as needed for upgraded high-performance antibacterial versions. We provide complete technical specifications, SDS material reports, and medical compliance documentation, meeting domestic and international mass production and export order requirements for mid-to-high-end medical dressings.