AnsCare Inc.

Micro-structure of PVA foam (SEM)

Key Features of PVA

  • 3D open-cell structure(interconnected pores)
  • Rapid fluid absorption
  • Extremely fast wicking
  • High fluid retention
  • Lint-free, fiber-free and Particulate-free
  • High tensile strength & abrasion resistance
  • Adjustable Pore Size
  • Soft and comfortable when wet, similar to the natural sponge
  • Bio-compatible with human-body, anti-adhesive, and low irritation

Production Flow of PVA Foam

Air-Foaming Technology

  • Purified air to form the pores of the sponge material
  • Distinctive micro-structure, continuous porous web of interconnected material
  • Without any chemical additives in pore-forming process
  • Low bacterial growth lowers infection
  • High quality and ultraclean without any residue

Air-Foaming vs. Starch-Foaming

Type Starch-Foaming Air-Foaming
Cleanness Particles inside the Starch Foam can’t be completely removed through all the manufacturing procedures. Thus, the starch particles are easily dropped out from the PVA materials during the surgical procedures. Clean
Pores or Cavities Pores or cavities inside Starch foams are not connected to each other (close-cell) Pores or cavities inside Air foams are connected to each other (open-cell).
Fluid Absorption Poor Good
Material Softness Stiff Comfort
Risk of Bacterial Growth High Low
Cleaness
Starch-Foaming Particles inside the Starch Foam can’t be completely removed through all the manufacturing procedures. Thus, the starch particles are easily dropped out from the PVA materials during the surgical procedures.
Air-Foaming Clean
Pores or Cavities
Starch-Foaming Pores or cavities inside Starch foams are not connected to each other (close-cell)
Air-Foaming Pores or cavities inside Air foams are connected to each other (open-cell).
Fluid Absorption
Starch-Foaming Poor
Air-Foaming Good
Material Softness
Starch-Foaming Stiff
Air-Foaming Comfort
Risk of Bacterial Growth
Starch-Foaming High
Air-Foaming Low