| Customization: | Available |
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| Feature: | Anti-Bacterial, Anti-Pull, Anti-Static, Anti-Tear, Breathable, Eco-Friendly, Mothproof |
| Pattern: | Plain |
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Hydrophilic Nonwoven is widely used in the manufacture of disposable hygiene products with their unique style, such as baby diapers, adult diapers, incontinence pads and women's sanitary napkins.
| Function | Benefit |
|---|---|
| Moisture Repellency | Prevents liquid from flowing back to the skin surface, reducing the risk of irritation and diaper rash. |
| Fast Liquid Acquisition | Quickly directs urine to the absorbent core below, keeping the surface dry. |
| Breathability | Allows air circulation, reducing humidity and heat buildup inside the diaper. |
| Softness and Comfort | Provides a smooth, cloth-like feel against the baby's skin. |
| Durable and Lint-Free | Maintains structural integrity when wet and does not shed fibers. |
Top Sheet (or Cover Stock): This is the layer that directly contacts the baby's skin. Its hydrophobicity is key to the "Surface Dryness" feature.
Leg Cuff Inner Liner: Helps prevent leaks by repelling fluid and guiding it toward the core.
Back Sheet Reinforcement: In some designs, it can be used as an additional barrier layer.
| Aspect | Description |
|---|---|
| Base Material | Typically Polypropylene (PP) or Polyester (PET) due to their inherent hydrophobic properties. |
| Production Process | Mainly Spunbond or Spunbond-Meltblown-Spunbond (SMS) technology. The Meltblown layer in SMS is key for adding barrier properties. |
| Treatment Method | The fibers are treated with hydrophobic agents (e.g., silicones, fluorocarbons) during or after the web formation to enhance repellency. |
| Parameter | Importance | Standard Target |
|---|---|---|
| Hydrostatic Pressure | Measures resistance to liquid penetration. Higher values are better for overnight use. | > 100 mbar (for top sheet) |
| Moisture Vapor Transmission Rate (MVTR) | Indicates breathability. Higher values are better for skin health. | > 1000 g/m²/24h |
| Strike-Through Time | Time for liquid to pass through the top sheet. Shorter times are better. | < 5 seconds |
| Rewet | Amount of liquid that returns to the surface under pressure. Lower values are critical for dryness. | < 1.0 g |
Plant-Based Treatments: Development of eco-friendly, bio-based hydrophobic agents to replace traditional chemicals.
Green Materials: Use of Polylactic Acid (PLA) fibers as a biodegradable alternative to PP.
Zoned Hydrophobicity: Creating patterns with varying levels of hydrophobicity to optimize fluid management in different areas of the diaper.
Enhanced Softness: Technologies like 3D Embossing are used to lift the nonwoven slightly off the skin, reducing contact and improving dryness perception.
In summary, hydrophobic nonwoven is a cornerstone of modern diaper design. It is a sophisticated material that goes beyond simple repulsion; it is an active part of the diaper's liquid management system. By ensuring a dry, breathable, and comfortable environment, it plays a direct and vital role in preventing diaper rash and promoting the overall skin health and well-being of the baby. Its continuous evolution towards smarter, safer, and more sustainable solutions remains a key focus for the hygiene industry.
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