Hygiene Industry Engineering & Sourcing Glossary

Cross-linked sodium polyacrylate polymer beads capable of absorbing and retaining up to 50-60 times their weight in 0.9% saline solution under pressure. Huifeng utilizes premium Sumitomo Seika (Japan) and BASF (Germany) SAP for zero-clumping fluid locks.

A sub-layer of high-loft airlaid or spunbond nonwoven placed immediately beneath the topsheet. It rapidly draws liquid away from the surface and disperses it horizontally across the full length of the core to prevent localized puddling.

The globally recognized benchmark test method for determining the maximum theoretical liquid absorption capacity of adult incontinence products and diapers in a 0.9% saline bath. Our adult briefs achieve 1,800ml to 3,200ml under Rothwell testing.

The amount of liquid forced back to the topsheet when a standard mechanical weight (typically 5kg for baby diapers, 10kg for adult briefs) is applied after fluid intake. Huifeng guarantees rewet values under 0.15g to 0.20g for superior skin dryness.

The metric unit measuring the aerial density and fabric weight of nonwoven materials, films, and absorbent papers. E.g., 45-65 gsm spunlace for wipes, 18-22 gsm hot-air through nonwoven for baby diaper topsheets.

A premium topsheet nonwoven manufactured by blowing heated air through carded bicomponent fibers (PE/PP). Produces a lofty, cloud-soft 3D texture with low surface friction, ideal for newborn baby diapers and sensitive skin.

Nonwoven fabric produced by entangling loose fiber webs using high-pressure micro water jets. Highly absorbent, lint-free, and tear-resistant, forming the gold standard substrate for wet wipes and premium face towels.

A specialized polyethylene film containing microscopic calcium carbonate (CaCO3) pores created through mechanical stretching. Pores are large enough for air and water vapor molecules to pass freely (MVTR >3,500 g/m²/24h), but too small for liquid water droplets.

Virgin wood fluff pulp bleached without any chlorine compounds (using oxygen, ozone, or hydrogen peroxide instead). Eliminates dioxins and harmful organochlorines from pulp mill effluents and final hygiene products.

The European Union Medical Device Regulation governing Class I medical devices, including medical nursing underpads and adult incontinence products. Requires complete technical documentation, risk management, and clinical evaluations.

A unique 10-digit number assigned by the United States Food and Drug Administration to identify foreign and domestic manufacturing facilities registered for medical devices or consumer regulated goods.

China Metrology Accreditation (中国计量认证), granted to third-party testing laboratories (such as Zhongke Huiju) demonstrating statutory competence to issue legally recognized inspection reports for product quality, microbiology, and safety.

An anatomical waistband design featuring multi-strand Invista Lycra spandex ultrasonically welded between soft nonwovens in a rippled bubble pattern, exerting uniform gentle pressure (approx. 1.2 kPa) without leaving red marks.

Hot-melt lines or patterns applied to the inner surface of the backsheet that change color (e.g., from yellow to dark blue/green) upon contact with alkaline liquid, providing a clear visual cue to change diapers.

Vertical cuffs made from hydrophobic spunbond nonwoven with embedded elastic threads positioned along the leg openings (35mm to 45mm height) to prevent fluid from escaping sideways during side-sleeping or movement.

A tracking certification ensuring that wood fluff pulp used in diaper cores originates from responsibly managed forests adhering to strict environmental, social, and economic standards.

The maximum quantity of packaged goods that can be packed into a standard 40-foot High Cube ocean container (volume approx. 68-76 CBM). Huifeng achieves 380,000-420,000 baby diapers or 100,000 adult diapers per 40HQ via vacuum baling.

Standardized international commercial terms published by the International Chamber of Commerce defining buyer and seller obligations, freight costs, and risk transfer points for global ocean shipments.