Tunsing Redefines Multi-Substrate Bonding with Advanced Low-Temperature Polyurethane Adhesive Film (DS6191)

For global brands and manufacturers scrambling to balance production speed with product durability, Shenzhen Tunsing Plastic Products Co., Ltd. has announced the official North American rollout of its premium DS6191 Polyurethane Hot Melt Adhesive Film. This engineered thermoplastic solution directly addresses a critical manufacturing pain point: achieving high-strength, flawless bonds across diverse substrates without exposing delicate materials to destructive high temperatures.

In modern product design—spanning seamless activewear, intricate embroidery, and rugged sports gear—products rarely rely on a single material. The DS6191 is uniquely synthesized from specialized polyurethane to provide exceptional cross-material molecular anchoring. It forms permanent, resilient bonds between textiles, fiberglass sheets, TPU, PVC, PC, and ABS.

By deploying a single film capable of adhering to both polar plastics (like ABS/PC) and flexible polymers (like TPU/Textiles), factories can eliminate multi-glue inventories, streamline their supply chains, and completely mitigate the risk of delamination caused by chemical incompatibility.

Traditional adhesive films often bottleneck assembly lines due to lengthy dwell times and high activation thresholds that melt or warp synthetic fabrics. The DS6191 overcomes this with an optimized thermodynamic profile:

• Low-Temperature Melt Range: Features a remarkably low operational melting range of just 40°C - 55°C (conforming to ISO11357 standards). This allows the adhesive to flow and wet the substrate surface at temperatures far below the degradation point of heat-sensitive synthetic textiles and structural plastics.

• High-Speed Processing: Engineered with a Shore A hardness of $92pm3$ and a Melt Flow Index of $7pm3text{cm}^3/10text{min}$, the polymer matrix achieves a rapid initial tack. In automated hot-pressing equipment, it requires a dwell time of only 5 to 15 seconds at mold temperatures of 80°C - 120°C, drastically shortening cycle times.

Supported by high-precision Glassine Release Paper, DS6191 is supplied in customizable widths ranging from 5mm to 1580mm. This structural configuration prevents edge-blocking and ensures seamless feeding into automated high-speed slitting and die-cutting machinery.