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How Double-Dot Coating Works on Woven Interlining

 

The adhesive coating is what allows fusible interlining to bond with a garment fabric. In double-dot woven interlining, adhesive is applied to the woven base in a staggered two-row dot pattern. When the coated side is placed against the wrong side of the outer fabric and exposed to suitable heat and pressure, the adhesive softens and creates a bond between the two layers. Understanding this process helps garment manufacturers make more informed decisions when purchasing reinforcement materials.

The woven base and adhesive perform different functions. The woven construction provides the underlying strength and dimensional stability, while the coating creates the connection with the fashion fabric. PA, or polyamide, is commonly used for the coating on woven fusible interlining. The double-dot arrangement distributes adhesive across the surface while maintaining the characteristics required for the interlining application. The actual fusing temperature, pressure and dwell time should be determined according to the material, outer fabric and equipment rather than using one setting for every production line.

When sourcing woven interlining, buyers should therefore look beyond the phrase “double-dot” and review the complete specification. GSM is particularly important because it affects the weight and body of the finished reinforced panel. A lightweight formal fabric may require a lighter grade, while heavier garments such as sherwanis or structured jackets can require a more substantial construction. Sample testing is useful for confirming whether the adhesive bonds evenly without affecting the appearance or hand-feel of the outer fabric. Production teams should also check the fused material after it has cooled and finished because the final result may differ from the immediate appearance after pressing. By understanding how the coating works alongside the woven base, manufacturers can select an appropriate grade and establish a more consistent fusing process for repeat production.

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