Hydrophilic T (Upper) Nonwoven for Diaper
The hydrophilic T (upper) nonwoven layer in a diaper refers to the
secondary top layer placed between the primary topsheet and the
acquisition/distribution layer (ADL). It is designed to enhance fluid
acquisition and transfer efficiency while maintaining a soft and breathable
feel. Treated to be hydrophilic, this layer quickly channels urine away from
the topsheet and helps distribute it more evenly into the absorbent core. The T
(upper) nonwoven plays a crucial role in improving dryness, reducing rewet, and
enhancing skin comfort, making it especially important in high-performance baby
and adult diapers.
Specification of Hydrophilic T (Upper) Nonwoven for
Diaper
- Material
Composition: Polypropylene (PP), polyethylene (PE), or bicomponent
fibers (PE/PP, PE/PET)
- Structure:
Spunbond or thermal bonded nonwoven
- Basis
Weight: 12 – 18 gsm (grams per square meter)
- Color:
White or light-colored (can be customized for branding)
- Hydrophilicity
(Strike-Through Time): ≤ 2.5 seconds
- Rewet
Value: ≤ 0.2 g (after multiple fluid applications)
- Tensile
Strength:
- Machine
Direction (MD): ≥ 6 N/25 mm
- Cross
Direction (CD): ≥ 4 N/25 mm
- Elongation:
MD: ≥ 20%, CD: ≥ 30%
- Thickness:
0.2 – 0.5 mm
- Air
Permeability: ≥ 200 L/m²·s (at 100 Pa)
- Surface
Treatment: Hydrophilic surfactant coating (durable and effective
through multiple uses)
- Softness:
Soft and skin-friendly to enhance comfort
- Skin
Compatibility: Hypoallergenic, dermatologically safe, and free from
irritants
- Odor:
Neutral, odorless