Multi-purpose chemical sheet with hot melt glue backing is a composite structural material widely used as a reinforcing agent in footwear manufacturing.
Product Parameters
|
Item |
Specification |
|
Material |
Polyester non-woven core + EVA hot melt adhesive coating |
|
Thickness |
0.6–1.5 mm (Tolerance ±0.03 mm) |
|
Sheet Size |
1.0 × 1.5 m / 1.37 × 1.0 m / 1.4 × 1.0 m |
|
Bonding Temperature |
115–130°C activation within 10 seconds |
|
Tensile Strength |
≥18 MPa (Longitudinal direction) |
|
Peel Strength |
≥3.5 N/mm inter-layer bonding strength |
|
Chemical Resistance |
Compatible with shoe solvents, PU glue, water-based adhesives |
|
Application |
Safety shoes, work boots, sports shoes, casual footwear reinforcement |
|
Color |
Customized colors available |
|
MOQ |
1,000 sheets |
|
Origin |
Quanzhou, Fujian, China |
Key Performance
Instant Thermal Bonding: Achieves structural bonding at 115°C–130°C within 8–10 seconds, locking shoe uppers tightly without delamination.
Shape Memory Retention: Passes SATRA TM83 flex test (50,000+ cycles) to prevent heel counter collapse after daily wear.
Clean Die-Cutting: High-density structure leaves crisp edges without fraying, eliminating manual trimming costs.
High Anti-Slip Friction: Features a surface coefficient of friction > 0.65 to prevent material slippage during pre-positioning before heat activation.
Customization Options
Precision gauge splitting available from 0.5 mm to 2.0 mm in increments of 0.05 mm.
Supplied as standard cut sheets (1.0 m × 1.5 m, 1.37 m × 1.0 m) or continuous rolls up to 100 m for automated cutting tables.
Resin saturation adjustable from Shore D 40 to Shore D 75 for applications ranging from soft casual uppers to rigid heel counters.
Proprietary surface embossing patterns and color tinting available upon request.
Manufacturing Process
Fiber Opening & Carding: Precision mechanical blending of PET fibers creates a uniform, multi-directional non-woven core matrix.
Chemical Resin Saturation: Full-dip styrene-acrylic emulsion immersion ensures core bonding, preventing delamination.
Thermal Curing: Tunnel-oven drying at 140°C locks matrix density to achieve target Shore hardness and dimensional stability.
EVA Hot-Melt Coating: Roll extrusion applies a low-temperature (80–90°C) adhesive film to enable rapid activation.
Calendering & Precision Slitting: Hot-roll calendering maintains ±0.05mm gauge tolerance before automated slitting into standard 36"x54" sheets.
Supply Capability
Low MOQ Sampling: Standard trial orders start at 1,000 sheets for rapid prototyping and factory trial runs.
Output & Lead Time: Daily production capacity of 40,000 m² supports standard order delivery within 14 days.
Optimized Freight Loading: High-density packing allows up to 18,000 sheets (1.0 m × 1.5 m) per 40ft HQ container to minimize per-unit freight costs.
Dispatch: Common specifications are kept in stock for immediate shipment within 48 hours.
Compliance & Certificates
REACH Annex XVII: Verified free of Substances of Very High Concern (SVHC) above the 0.1% threshold by independent lab test reports.
OEKO-TEX Standard 100: Certified free of harmful aromatic amines, heavy metals, formaldehyde, and toxic chemical residues.
Zero VOC Emissions: Tested to ISO 16000 standards to ensure low volatile organic compound emissions in enclosed footwear.
ISO System Certified: Manufactured under certified ISO 9001:2015 (Quality) and ISO 14001:2015 (Environmental) management systems.
FAQ
Q: How can buyers verify product performance before placing large orders?
A: Buyers can request samples for factory trials and evaluate bonding strength, molding performance, and flexibility under their own production conditions.
Q: Can this material replace traditional fiberboard reinforcement sheets?
A: Yes, it can replace some traditional reinforcement materials when manufacturers need lighter weight, faster thermal bonding, and better flexibility after molding.
Q: What is the claim window if a batch fails the tensile strength or peel strength test after arrival at the destination port?
A: Buyers must submit a claim with test evidence within 15 days of port arrival, after which a credit note or free replacement is issued within 10 business days upon verification.
Q: What is the specific AQL level applied under the contractual defect replacement clause?
A: Shipments are inspected and released under AQL 1.5 Major / 2.5 Minor defect sampling standards; any batch exceeding these thresholds qualifies for the direct replacement clause upon verified claim submission.
Q: Which Shore D hardness range is recommended for soft casual uppers versus rigid heel counters?
A: Soft casual uppers typically use Shore D 40-50 for flexibility and comfort, while rigid heel counters for safety or work boots use Shore D 65-75 for maximum shape retention.
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