Wood Pulp PP Core Sheet for Disposable Hygiene (Diapers & Sanitary Pads)

Quick definition: A wood pulp PP core sheet is an absorbent core material made of virgin wood pulp blended with polypropylene (PP) fibers, used inside disposable diapers, sanitary pads, and incontinence products to absorb and lock away liquid. Weston Nonwoven's version uses a 65% wood pulp / 35% PP blend at 70 GSM with a 3D-embossed surface.

1. Product Specifications

Property	Value
Material composition	65% virgin wood pulp + 35% polypropylene (PP)
Basis weight	70 GSM (customizable on request)
Standard sheet size	20 cm x 20 cm (custom sizes and bulk roll format available)
Surface texture	3D embossed
Color	White (custom colors available)
Packaging	100 sheets/pack (custom packaging available)
Width Range	100-3100 MM
Certifications	ISO 9001,FDA

2. Performance Data

Metric	Result
Absorption capacity	Absorbs liquid up to ~5x its own weight
Surface area increase from embossing	~30% vs. flat (non-embossed) sheet of same GSM
Absorbency retention vs. 100% wood pulp core	~90% of pure wood pulp's absorbency
Tensile strength vs. 100% wood pulp core	Approximately 2x higher

3. How It Works

Wood pulp layer: absorbs liquid through capillary action and holds it within the fiber structure, reducing rewetting (liquid coming back to the surface after pressure is applied).

PP fiber layer: gives the core tensile strength so it keeps its shape under pressure, even when fully saturated - relevant for incontinence products and high-output use cases.

3D embossing: increases surface area, which speeds up liquid distribution across the core and improves air circulation, reducing heat buildup against skin.

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4. Applications

Application	Why this core sheet fits
Baby diapers	Even liquid distribution, reduced rewetting, breathable structure to reduce diaper rash risk
Sanitary pads	Fast absorption with retained breathability; can be paired with Weston's Lyocell Spunlace Wipes for a complementary product line
Adult incontinence products	Maintains structural integrity under sustained, repeated liquid load
Industrial / medical absorbent pads	Chemical resistance and durability for non-personal-care absorbent uses

5. Customization Options

Sheet size and roll format
Basis weight (GSM)
Embossing pattern (micro-pattern to large-scale texture)
Color
Packaging (retail pack or bulk roll)

Contact Weston with target specifications for a custom quote.

6.Explore Weston's Spunlace Portfolio: Beyond the Core

While our Wood Pulp PP Core Sheet for Disposable Hygiene is the star, Weston Nonwoven offers a range of spunlace nonwoven fabrics designed to elevate your products:

Bamboo Fiber Sanitary Napkins: For eco-conscious brands, our bamboo-based sheets combine sustainability with superior absorbency.

Lyocell Spunlace Wipes: Soft yet strong, these wipes are perfect for personal hygiene and medical applications.

Organic Cotton Top Sheets: Ideal for premium sanitary pads, these sheets offer a luxurious feel without compromising on performance.

Each product is crafted with the same dedication to quality and innovation that defines our core sheet.

7. Frequently Asked Questions

Q: What is the material composition of Weston's wood pulp PP core sheet?

A: 65% virgin wood pulp and 35% polypropylene (PP) fiber, at a standard basis weight of 70 GSM.

Q: How does a 65/35 wood pulp-PP blend compare to a 100% wood pulp core?

A: It retains approximately 90% of the absorbency of a 100% wood pulp core while roughly doubling tensile strength, so the core holds its shape when fully saturated.