Spunlace PE-coated Nonwoven Moisture-Proof Packaging Liner - Bulk Supply for Packaging Manufacturers

Name: China Customized Spunlace PE-coated Nonwoven Moisture-Proof Packaging Liner Manufacturers, Factory - Wholesale Service - Weston Manufacturing
Brand: Weston
SKU: 279846424

What Is a Spunlace PE-Coated Nonwoven Moisture-Proof Packaging Liner?

A spunlace PE-coated nonwoven moisture-proof packaging liner is a composite packaging material made of a hydroentangled (spunlace) nonwoven base with a polyethylene (PE) coating on one side. The nonwoven layer provides tensile strength and a soft, tear-resistant handle; the PE coating adds a continuous moisture barrier. It is used as an inner liner inside cartons, bags, drums, and containers to reduce condensation, humidity ingress, and corrosion risk to packaged goods during storage, warehousing, and transport.

Weston Nonwoven manufactures this liner in bulk rolls and cut sheets, with configurable weight, width, and coating thickness for converters supplying food, pharmaceutical, cosmetic, textile, and industrial packaging lines.

Key Features

Property	Value
Base material	Spunlace (hydroentangled) nonwoven
Coating	Polyethylene (PE), single-side
Standard basis weight	60 gsm (40–120 gsm available)
Moisture resistance	Designed for superior protection against humidity and splashes
Adhesive compatibility	Usable with common packaging adhesives and laminations
Standard color	White (custom tints available)
Standard formats	Rolls, cut sheets, box/container liners
Certifications	ISO 9001

How It Works: Spunlace Base + PE Coating

The liner's moisture protection comes from two layers working together:

Spunlace nonwoven base. Fibers are bonded by high-pressure water jets (hydroentanglement) rather than heat or adhesive, producing a fabric that is flexible, low-linting, and resistant to tearing during packing and stacking.

PE coating layer. A polyethylene film is bonded to one face of the nonwoven, forming a continuous moisture barrier. This is what gives the composite its water-resistant and moisture-proof function, measured by WVTR (lower = better barrier).

Lamination compatibility. The uncoated face bonds with standard packaging adhesives, allowing the liner to be laminated to paper, film, or other nonwoven substrates for multi-layer packaging structures.

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Spunlace PE-Coated Liner vs. Other Packaging Barrier Materials

Material	Moisture barrier	Tear strength	Typical cost tier	Biodegradable	Best for
Spunlace PE-coated nonwoven	High (PE layer)	High	Mid	Partial (PE side is not)	Cartons, bags, box liners needing both strength and barrier
PE film only	High	Low–Medium (tears without a fiber base)	Low	No	Simple wraps, low mechanical load
Kraft paper liner (uncoated)	Low	Medium	Low	Yes	Dry goods, low-humidity environments
PP meltblown	Medium (fine-fiber filtration, not a continuous film)	Low	Low–Mid	No	Filtration, fine-particle applications rather than moisture barrier

Core Applications

Food packaging liners - inner liners for cartons, trays, and outer boxes protecting dry foods and snacks from humidity and condensation.
Pharmaceutical and medical packaging - cartons and outer packs for medicines, devices, and lab supplies where moisture control affects product integrity.
Cosmetic and personal care packaging - moisture-resistant inner layer for cosmetic boxes and gift sets to preserve appearance and shelf life.
Textile and apparel packaging - placed between folded garments or fabric rolls to reduce moisture-related staining and odor during storage.
Industrial and machinery parts packaging - protective liner inside crates and boxes for metal components and tools, reducing humidity-driven corrosion risk.
Agricultural and bulk material packaging - barrier layer in seed, fertilizer, and feed packaging to limit moisture exposure and preserve efficacy.

Customization Options

Option	Range / Notes
Basis weight	40–150 gsm (specify target barrier and mechanical strength)
Width	Configurable to your slitting, laminating, or converting line
Roll length / sheet size	Master rolls or pre-cut sheets to your box/bag dimensions
Color	Standard white; custom tints or printing for branding or handling codes
Coating thickness	Adjustable to balance barrier performance vs. flexibility

Frequently Asked Questions

Is spunlace PE-coated nonwoven waterproof or just moisture-resistant?

It is moisture-resistant/moisture-proof rather than fully waterproof in the way a sealed film pouch is. The PE coating blocks vapor transmission and light splashing, but the liner is not designed as a submersion-grade waterproof barrier. For fully waterproof applications, ask about heavier PE coating weights or additional lamination.

What's the difference between PE-coated nonwoven and a plain PE film liner?

PE film alone has strong moisture resistance but low tear strength and tends to puncture under mechanical stress. Adding a spunlace nonwoven base gives the composite tensile strength and puncture resistance while keeping the PE layer's barrier performance, making it better suited to boxes, crates, and bags handled multiple times.

Can this liner be used for tropical or high-humidity climate shipping?

Yes. Higher basis weight and increased PE coating thickness improve barrier performance for high-humidity or long-transit routes. Confirm target WVTR values for your shipping lane with our technical team before specifying a weight.

Can the liner be laminated or printed for branding?

Yes. The uncoated nonwoven face accepts standard packaging adhesives and can be laminated to paper, film, or other nonwoven layers. Custom tints and printed branding like Laminated Nonwoven For Medical Packaging or handling instructions are available on request.

Is this liner recyclable or biodegradable?

The spunlace fiber base can be produced with recycled content, but the PE coating is not biodegradable, so the composite as a whole is not fully biodegradable. Ask about recycled-content variants if sustainability certification is a requirement for your packaging program.

For samples, custom branding, or joint development projects: info@westonmanufacturing.com