Automotive Interior Soft Pack Base

Summary

An engineered coarse-denier bi-component nonwoven base cloth for automotive interiors. Designed as a soft-pack substrate and backing for door panels, headliners, seat backs, trunk liners and pillar trims, it combines low weight with high dimensional stability and clean VOC profile. Suitable for thermoforming, lamination and cut-and-sew processes.

Why It Works

• Stiff-yet-light: coarse denier filaments create a stable 3D web that resists sagging in vertical trims.

• Clean cabin air: low-VOC resins and controlled processing for modern OEM odor/VOC targets.

• EV-ready acoustics: functions as a decoupler layer to reduce structure-borne noise when paired with foams or felts.

• Sustainable options: mono-polymer and recyclable blends available to facilitate end-of-life recovery.

Key Features

• Strength & stability

• Coarse-denier filaments (≥ 15 D) for stiffness and handling.

• Tensile (ISO 9073-3): ≥ 150 N/50 mm (MD), ≥ 120 N/50 mm (CD) typical.

• Heat shrinkage at 120 °C, 30 min (ISO 5077): ≤ 2–3%.

• Lightweight thermal base

• Basis weight: 80–150 g/m² (custom).

• Thickness: 0.6–2.5 mm (tooling-dependent).

• Works as a low-mass thermal spacer behind surface skins.

• Flammability & cabin quality

• Designed to meet FMVSS 302 / GB 8410 burning rate for interior trims.

• VOC/fogging: engineered for VDA 278 / VDA 270 targets（low odor options）.

• UV conditioning: retains strength after accelerated exposure (per ISO methods).

• Process-friendly

• Thermoformable, punchable, and compatible with hot-melt lamination & adhesive bonding.

• Surface options: smooth / embossed / printable.

• Roll format for automated lay-up.

Technical Parameters

Parameter	Specification	Test Standard
Material Composition	Dual-component polymers (e.g.， PP/PE， PET/PA)	ISO 13934-1
Fiber Type	Coarse denier filaments (≥15 denier)	IASIMD33/9
Grammage	80-150 g/m²(customizable)	ISO 9073-1
Thickness	0.5-2 mm (varies with GSM)	ISO 5084
Tensile Strength	2，500-3，500 MPa (longitudinal)/ 2，000-2，800 MPa (transverse)	ASTMD638
Thermal Conductivity	0.035-0.045W/(mK) (insulating performance)	ISO 8301
Fire Retardancy	B1 (EN ISO 3795 flame retardant)	ENISO 3795
VOC Emissions	≤50)ug/m² (low toxicity)	VDA 277
Water Absorption	≤0.5% (mold resistance)	ASTMD570
UV Resistance	Retains 98% tensile strength after 1，000 hours of exposure	ASTM G154
Customization Options	Antibacterial coatings， embossing， color matching
Eco-Friendly Features	100% recyclable， reduces carbon footprint by 35% vs. synthetic leather
Application Fields	Car door panels， headliners， seatbacks， EV soundproofing
Certifications	EN ISO 3795 (fire safety)， ISO 14001 (environmental)， VDA 277 (emissions)

Applications

• Door trim soft-pack base / insert backing

• Headliner backer & sunroof shade base

• Seat back covers, trunk side panels, pillar trims

• EV noise decoupler layer under decorative skins

• Luggage-compartment liners & parcel shelves

Customization & Services

• OEM color-matching, embossing, perforation patterns

• Antibacterial/anti-mildew finish（optional）

• Pre-lamination with foam, scrim or adhesive films

• Cut-to-width slitting; private-label printing

FAQs

Q1: How is this different from needle-punched felt?
This base uses coarse-denier bi-component fibers to raise stiffness at lower basis weight, improving formability and anti-sag for vertical trims.

Q2: Can it meet FMVSS 302 / GB 8410?
Yes—formulations are engineered to pass interior-trim burning-rate requirements when processed to spec.

Q3: Is it recyclable?
Mono-polymer grades (e.g., all-PP) support single-stream recycling; blended bi-component versions are designed for reduced VOCs and long service life.