Tunsing Officially Releases DS6193 High-Performance Hot Melt Adhesive Film Superior Multi-Material Bonding

SHENZHEN, Jan 8, 2024 — Shenzhen Tunsing Plastic Products Co., Ltd., a leading manufacturer of eco-friendly bonding materials, today officially announced the release of its next-generation hot melt adhesive film product: DS6193. Engineered specifically for textiles, apparel, and composite materials, DS6193 delivers a low processing temperature, fast curing times, and exceptional cold resistance, making it an ideal choice for streamlining modern industrial manufacturing.

DS6193 is a thermoplastic, film-like hot melt adhesive derived from Polyurethane, supplied with a high-quality Glassine release paper backing that allows for repeated heating and plasticization. The product features several advanced optimizations to meet rigorous industrial needs:

• Excellent Material Compatibility: Delivers outstanding adhesion to textiles, TPU, PVC, PC, and ABS.

• Robust Physical Traits: Provides excellent cold resistance and a fast curing speed to greatly reduce process wait times.

• Versatile Application Scenarios: Widely applied for bonding materials in clothing, embroidery, footwear, luggage, handbags, toys, hat making, and sporting goods.

To enable manufacturing enterprises to accurately align their production processes, Tunsing Laboratory has comprehensively analyzed the physical and thermodynamic characteristics of DS6193 based on recognized standards (such as ASTM D1238-04):

Tested via a NETZSCH DSC 214 differential scanning calorimeter under a nitrogen atmosphere at a heating rate of 10°C/min, as well as an Anton Paar rotational rheometer, DS6193 exhibits highly stable thermal performance:

• Activation Temperature: 68-137°C.

• Glass Transition Temperature (Tg): Approximately $-54.1^circtext{C}$ (or $-51.4^circtext{C}$ to $-51.9^circtext{C}$ across tested batches), demonstrating brilliant flexibility in freezing environments.

• Melting Temperature (Tf): An obvious endothermic peak is observed near 51.7°C.

• Viscoelastic Fluid Transition Point: Dynamic mechanical testing shows that the storage modulus and loss modulus intersect at approximately 54.2°C, indicating the temperature where the film transitions into a fluid to properly wet out substrates.

To achieve optimal bonding strength (yielding an average peel strength of up to $80text{ N/25mm}$ in specified PU cloth and PC lamination tests), Tunsing recommends the following standard processing parameters:

• First Lamination:

  • Mechanical Mold Temperature: $130^{circ}text{C}-170^{circ}text{C}$

  • Time: 5-15 seconds

  • Pressure: 0.3-0.6mpa

• Final Assembly:

  • Mechanical Mold Temperature: 140°C - 180°C

  • Time: 8-25 seconds

  • Pressure: 0.3-0.6mpa