Double dot interlining

When sourcing double dot interlining, you must prioritize the coating technology and base fabric composition. Ensure the coating weight (GSM) is consistent across the roll to prevent strike-back or strike-through. Look for PA (Polyamide) or PES (Polyester) adhesives, as PA offers superior dry-cleaning resistance while PES provides excellent washability. The base cloth (woven, non-woven, or knitted) should match the elasticity and weight of your shell fabric to ensure a natural drape and soft hand-feel.

The Double Dot process involves two layers of adhesive: a base layer that prevents the glue from penetrating the shell fabric and a top layer that ensures a strong bond with the garment. This technology is superior to single dot or powder dot because it provides higher peel strength and minimizes the risk of bubbling or delamination after repeated industrial laundering or dry cleaning.

For global trade, ensure the interlining meets OEKO-TEX® Standard 100, which guarantees the product is free from harmful substances like formaldehyde. If exporting to the EU, verify REACH compliance. Additionally, request shrinkage test reports (ideally <1.5%) and peel strength certifications (minimum 10-15N/5cm) to ensure the interlining performs reliably under heat-press conditions.

Calculate the Total Cost of Ownership by factoring in the yield per roll and the defect rate. While low-cost interlinings may seem attractive, they often lead to high garment rejection rates due to poor adhesion. It is more cost-effective to choose suppliers on Made-in-China.com who offer consistent coating density, as this reduces waste during the fusing process and prevents costly post-production repairs.

The primary risk is batch-to-batch inconsistency, where the sample quality does not match the bulk order. To mitigate this, always request a pre-shipment sample (PSS) from the same production lot. Another risk is moisture damage during sea freight, which can degrade the adhesive properties. Ensure the supplier uses vacuum-sealed plastic packaging and sturdy outer cartons to protect the rolls from humidity.

Utilize Trade Assurance services provided by platforms like Made-in-China.com to protect your payment until delivery is confirmed. Negotiate a 30% deposit and 70% balance payment against the Bill of Lading (B/L). For large-scale enterprise orders, insist on a third-party factory audit to verify the supplier's production capacity and quality control systems.

Interlining rolls are bulky but relatively light. To optimize shipping costs, use FCL (Full Container Load) if volume permits, or ensure LCL (Less than Container Load) shipments are not placed under heavy machinery that could crush the rolls. Clearly define Incoterms (e.g., FOB or CIF) in the contract to clarify who bears the risk during transit to your specific country.