Leather Splicing Tape

• Upper Tape Use for Top Splice No. A101

  Upper Tape No.A101 is specifically engineered for top-side splicing directly on the active silicone-coated release surface of casting paper.

  • Construction & Backing: Built on a durable Polyester (PET) film backing coated with a high-temperature silicone adhesive system, available in clear or high-visibility red.
  • Release Surface Performance: Formulated to achieve exceptional initial tack and permanent bonding to low-surface-energy (LSE) release paper coatings without debonding during thermal processing.
  • Specialized Release Topcoat: Features a proprietary release coating on the tape's outer surface, allowing liquid PU or PVC resin to cure and release smoothly from the splice area without tearing the synthetic leather layer.
  • Multi-Cycle Reusability: Engineered to withstand severe heating and cooling cycles, lasting through 6 to 7 complete production runs. This reusability allows casting paper rolls to be spliced and rerun repeatedly, significantly lowering total operational costs.

• Lower Tape Use for Back Splice No. A102

  Lower Tape No.A102 serves as the heavy-duty back splice tape, applied to the non-release (back) side of casting and release papers to form a robust butt joint.

  • Construction & Backing: Features a high-strength Kraft paper carrier coated with a high-tack, heat-stable acrylic adhesive.
  • Structural Butt Splicing: Provides high shear resistance and dimensional stability, holding adjacent paper rolls perfectly flush during continuous web tension.
  • Synthetic Leather Compatibility: Delivers outstanding, permanent adhesion across various casting paper grades used in PVC, PU, and Semi-PU leather manufacturing lines.

• PET Splicing Tape

  

  Tape Properties:

  Thickness	0.085mm
  Adhesion	11 N/25mm
  Tesile Strength	57 N/cm
  Elongation	115%
  Color	Red
  Max Temperature	220°C

• Kraft Paper Splicing Tape

  Tape Characteristic/Use:

  • Splicing low energy surfaces
  • Splicing release paper or film
  • High temperature resistant
  • Excellent adhesion

  Tape Properties:

  Thickness	0.14mm
  Adhesion	9.8 N/25mm
  Tesile Strength	49N/cm
  Elongation	9%
  Color	Brown
  Max Temperature	200°C

   

FAQ:

Q1. Why are two different tapes needed for leather splicing?
A: Synthetic leather production uses casting paper with a non-stick release side and a standard paper back side. Upper Tape No.A101 uses a silicone adhesive with a release surface to stick to the active face, while Lower Tape No.A102 uses an acrylic adhesive on Kraft paper to secure the non-release side, ensuring a complete, dual-sided joint.

Q2. How many production cycles can Upper Tape No.A101 endure?
A: Upper Tape No.A101 is built for durability and can withstand 6 to 7 complete production cycles through curing ovens, allowing manufacturers to reuse spliced casting paper multiple times.

Q3. What types of synthetic leather production lines use this tape?
A: This splicing system is compatible with Polyvinyl Chloride (PVC) casting leather, Polyurethane (PU) synthetic leather, and Semi-PU (PU/PVC combination) synthetic leather manufacturing lines.

Q4. Does Upper Tape No.A101 affect the synthetic leather finish?
A: No. The top surface of No.A101 features a special release coating that prevents the liquid PU/PVC resin from sticking to the splice, allowing clean removal of the finished leather without damaging the embossing pattern.