Pillow and Cushion Interlining Fabric

Interior and Containment Applications

Interlining fabrics are utilized in all applications where the core fill material needs secure enclosure and structural support:

• Pillow Core Encasements: Used to hold down, feather, or poly fiberfill, preventing leakage through the outer decorative cover.
• Cushion Inserts: Provides the necessary structural bag for foam chips or batting, giving the cushion its firmness and shape.
• Mattress Internal Barriers: Can be used as lightweight dust covers or internal barriers over spring systems.

They are selected based on the fineness of the fill material being contained.

Material Metrics and Containment

Core Advantages of Interlining Fabric

• Effective Fill Containment: High thread counts and dense weaves physically block fine particles, feathers, and fibers from escaping the inner core.
• Structural Support: Provides a durable bag that resists tearing during high-pressure stuffing and maintains the desired pillow/cushion shape.
• Lightweight Profile: Adds minimal weight to the finished product, preserving the softness and plush feel of the fill material.
• Cost Efficiency: Non-woven options offer a highly cost-effective solution for mass-produced internal components.

Frequently Asked Questions (FAQ)

• Q: How is the anti-feather-leakage capability verified for pillow interlining?
• A: Feather-proof interlining undergoes specialized testing where the fabric is rubbed or compressed against fine feather material to confirm that no barbs or down clusters penetrate the weave structure.

• Q: Is the polypropylene interlining safe for residential use?
• A: Yes. Non-woven polypropylene is chemically inert and is widely used in home and medical applications. We ensure our materials are Oeko-Tex compliant, guaranteeing they are free from harmful processing chemicals.

• Q: Can this fabric be supplied pre-cut and sewn into simple bags?
• A: Yes. For high-volume clients, we offer cut-and-sew services to provide pre-made interlining bags (simple rectangle or square shapes) ready for the client's stuffing process.

Material Choice and Function

Selection depends on the specific fill requirement:

• Down/Feather Containment: Requires a very high thread count (T230+) and a calendered, tightly woven cotton/polyester blend.
• Poly Fiberfill Containment: A durable, lightweight non-woven PP or spun-bond polyester is often sufficient and more cost-effective.
• Breathability: While containment is key, a woven interlining offers better vapor permeability than heavily coated alternatives.

Production and Quality Control

Control is focused on material integrity:

• Weave Inspection: Visual and mechanical inspection of the woven fabric to ensure zero defects (holes, skipped stitches) that would allow fill to escape.
• Slitting Accuracy: Precise slitting of the rolls to ensure exact width tolerances, essential for high-speed automated bag sewing.
• Seam Strength Testing: Periodic destructive testing of the seams of pre-sewn interlining bags to ensure they meet the minimum force required to prevent bursting under pressure.