The Protective Revolution of Underpads: From Basic Absorption to Precise Protection
While seemingly simple, underpads are
actually "invisible defense lines" in medical care. Their
technological upgrades and standardized application are directly related to
patient safety. From early cotton padding to today's multi-functional composite
materials, underpads have developed a multi-dimensional protective system.
The core of modern underpads lies in their
layered collaborative design. The surface layer mostly uses natural materials
such as bamboo fiber, which achieves natural antibacterial effects through the
component of bamboo green copper sodium, avoiding allergy risks caused by chemical
antibacterial agents. The middle absorption layer is the technical key:
imported SAP (Super Absorbent Polymer) water-absorbent resin can quickly lock
in liquids, and the bionic gradient pore membrane prevents the backflow of
exudate through a one-way diversion structure. Such designs have been proven to
shorten wound healing time by nearly 5 days. The bottom nano-microporous
membrane achieves "breathable but not liquid-permeable" performance,
with a breathability index of up to 53%, effectively inhibiting bacterial
growth.
The new National Standard GB 15979—2024,
implemented in 2025, further strengthens the safety baseline: it prohibits the
use of recycled materials, strictly controls the residue of fluorescent
brighteners, and adds new testing indicators for pH value and toxicology. This
means qualified underpads must pass more stringent safety verification,
eliminating risks such as formaldehyde release from inferior chemical fibers at
the source.
The key to scientific use lies in scenario
adaptation. For preventing pressure ulcers in bedridden elderly, airbag
pressure-reducing underpads should be selected to reduce local pressure to
below the critical value of 32mmHg. For post-operative wound care, functional
underpads loaded with curcumin are suitable, which can reduce scar formation by
more than 50%. For daily care, attention should be paid to the replacement
frequency of 4-6 hours to avoid infections caused by moisture.
From material innovation to standard
upgrades, every advancement in underpads is an important safeguard for
patients' dignity and safety.
