Empowering High-Elastic Athletic Protection: Shenzhen Tunsing Launches DS3413 High-Recovery Thermoplastic Elastomer Hot Melt Adhesive Film

Shenzhen, China — With the rapid growth of the market for yoga wear, athletic garments, and functional tights, high-elasticity fabrics have placed strictly high demands on the "stretch recovery rate" and "washability performance" of adhesive films. Shenzhen Tunsing Plastic Products Co., Ltd. has officially launched its new generation DS3413 Thermoplastic Elastomer Hot Melt Adhesive Film. Engineered specifically for the composite bonding of high-recovery elastic fabrics such as yoga wear, this product maintains an ultra-soft feel while endowing fabrics with exceptional elastic recovery and outstanding resistance to water washing and dry cleaning.

DS3413 Core Selling Points

1. Ultra-High Elastic Recovery Rate, High Stretch Resistance Without Deformation

   As a thermoplastic elastomer (TPE) adhesive film, DS3413 features a molecular structure optimized specifically for high-recovery fabrics. When stretched extensively alongside high-elasticity fabrics like yoga wear, it quickly recovers its original shape, preventing stretch widening, wrinkling, or delamination.

2. Low Activation Temperature for Efficient Lamination and Fabric Protection

   DS3413 has a low melting range of 60–80°C (ISO 11357), an activation temperature of 91–140°C, and a fluid transition temperature of approximately 98.1°C (based on Anton Paar rotational rheometer testing). The lower processing temperature effectively protects premium heat-sensitive elastic fabrics from burning, discoloration, or shrinkage.

3. Controlled Flow Against Glue Strike-Through (MFI 5±3) with Superior Washability

   The Melt Flow Index (MFI) is strictly controlled at 5 ± 3 cm³/10min (ASTM D1238-04), making it resistant to excessive glue seepage or overflow during pressing. Additionally, the adhesive film demonstrates excellent resistance to water washing and dry cleaning, ensuring long-lasting bond strength after repeated laundering.

4. Soft Comfort and Broad Temperature Adaptability

   Featuring a hardness of 65 ± 3 Shore A, DS3413 balances high stretch recovery with a comfortable, soft tactile feel. With a glass transition temperature (Tg) of -20 ± 8°C (DSC peak measured at approx. -12.9°C), it maintains stable flexibility and elasticity across various daily climatic conditions.

Product Selection Comparison & Guide: DS3413 vs. DS3412

When selecting hot melt adhesive films for elastic fabrics (such as yoga wear, seamless underwear, or high-elastic nylon/spandex), customers often weigh choices between DS3413 and DS3412. Tunsing Laboratory summarizes key differences and selection advice below:

💡 Selection Recommendations:

• Choose DS3413 if your product involves:

  • Yoga wear or high-intensity athletic tights: Requiring frequent, high-extent stretching along with strong recovery force against deformation.

  • Heat-sensitive elastic fabric lamination: Needing low-temperature activation (91–140°C) to protect delicate fabric fibers.

  • Thicker adhesive layer or anti-seepage control: Requiring low MFI (5 cm³/10min) to prevent glue strike-through and a 0.20mm thickness option for enhanced peel strength.

• Choose DS3412 if your product involves:

  • Seamless underwear, panties, or bra edge lamination: Seeking an ultra-soft tactile feel (hardness of only 52 Shore A) and a "zero-sensation" wearing experience.

  • Ultra-thin bonding requirements: Needing an 0.025mm ultra-thin specification to prevent stiff or visible bond lines.

Recommended Lamination Conditions (DS3413)

Tunsing Laboratory recommends the following baseline pressing parameters (to be fine-tuned based on specific fabric types):

• First Lamination (Film to Fabric): Mold Temp 130°C – 170°C, Time 5 – 15 seconds, Pressure 0.3 – 0.6 MPa.

• Second Lamination (Substrate Composite): Mold Temp 140°C – 180°C, Time 8 – 25 seconds, Pressure 0.3 – 0.6 MPa.

About Tunsing

Shenzhen Tunsing Plastic Products Co., Ltd. specializes in the R&D and manufacturing of high-quality hot melt adhesive films. Equipped with advanced testing instruments and a dedicated material R&D team, Tunsing is committed to providing global clients in apparel, sports equipment, and industrial composite sectors with tailored seamless bonding solutions.