PVC high frequency welding filler film, 0.10–2.0mm thickness, dielectric loss factor 0.08–0.12, weld strength ≥15N/15mm. REACH/RoHS. For shoe upper & insole bonding. MOQ 500m. Request sample.
product details
Solamni leather Introducing Our PVC high frequency welding filler refers to flexible polyvinyl chloride films used as the bonding medium or structural interlayer in radio‑frequency (RF) welding of footwear components. Engineered with a high dielectric loss factor (0.08–0.12 at 1MHz), these films enable rapid molecular fusion under 27.12 MHz or 40.68 MHz electromagnetic fields, forming permanent bonds between PVC substrates, textiles, and synthetic leathers without adhesives. Solamni supplies HF‑weldable PVC films in thicknesses from 0.10mm to 2.0mm, roll widths of 1.37m or 1.4m, with custom color options, REACH/RoHS compliance, and MOQ from 500 meters.
Technical Specifications Matrix
| Property | Specification | Test Standard |
|---|---|---|
| Material Type | Flexible PVC (Polyvinyl Chloride) | FTIR |
| Thickness Range | 0.10mm – 2.0mm ±0.02mm tolerance | Micrometer / ISO 4593 |
| Roll Width | 1.37m (54″) / 1.4m (55″) | In‑house |
| Shore Hardness | 60A – 90A (grade‑dependent) | ASTM D2240 |
| Dielectric Loss Factor | 0.08 – 0.12 (1MHz) | ASTM D150 |
| Optimal HF Frequency | 27.12 MHz / 40.68 MHz | In‑house |
| Weld Cycle Time | 0.5 – 3 seconds per weld | In‑house |
| Weld Strength | ≥15 N/15mm | ISO 11339 / In‑house |
| Weld Joint Efficiency | 95 – 100% of base material strength | In‑house tensile |
| Tensile Strength | 15 – 35 MPa (grade‑dependent) | ASTM D412 / ISO 527 |
| Elongation at Break | 200% – 500% (grade‑dependent) | ASTM D412 / ISO 527 |
| Flex Fatigue | ≥50,000 cycles (no delamination) | Bally flexometer / SATRA TM55 |
| Hydrolysis Resistance | ≥72 hours accelerated (70°C/95% RH) | ISO 1419 |
| Operating Temperature | -20°C to 80°C | Thermal chamber |
| Compliance | REACH (SVHC <0.1%), RoHS (phthalates <0.1%) | EU 1907/2006 / EU 2015/863 |
| MOQ | 500 meters per thickness/color | - |
Solamni manufactures PVC HF welding filler films via precision calender extrusion lines with closed‑loop thickness control.
Dielectric & HF Compatibility Screening:
Each resin batch is tested for dielectric loss factor at 27.12 MHz and 40.68 MHz (standard HF welding frequencies). Films must achieve consistent molecular excitation under RF fields without arcing or uneven heating. PVC compounds with ≥30% PVC content are verified for HF compatibility prior to production.
Weld Strength Validation:
PVC film samples are welded to standard shoe upper textiles (polyester mesh, nylon knit, PVC synthetic leather) using a calibrated HF welding machine. Weld strength is measured on a UTM per ISO 11339. Minimum acceptance: 15 N/15mm. Weld cycle time is verified at 0.5–3 seconds per weld. Weld joint efficiency is validated at 95–100% of base material strength.
Flex Fatigue & Durability:
Laminated composites undergo 50,000 dynamic flex cycles on a Bally flexometer. Zero delamination or cracking required. Post‑fatigue weld integrity is re‑verified.
Hydrolysis & Environmental:
Accelerated hydrolysis testing per ISO 1419 (70°C / 95% RH) validates ≥72‑hour resistance. All PVC resins are screened for phthalates (≤0.1% per REACH Annex XVII), heavy metals (Pb ≤90ppm, Cd ≤10ppm), and formaldehyde (≤75mg/kg). REACH/RoHS compliance documentation accompanies every shipment.
Factory Traceability:
Each master roll receives a unique batch number linked to extrusion line ID, resin batch certificate, dielectric test log, and HF weld test results. Retained samples (A4‑size cutouts) are archived for 36 months. Digital Certificate of Analysis issued within 48 hours of production.
Industrial Application Scenarios
PVC HF welding filler films are supplied to footwear OEMs as the bonding medium or structural reinforcement layer in high‑frequency welding processes.
Shoe Upper Construction (Primary)
Seamless upper lamination: PVC film as the bonding layer between mesh, knit, synthetic leather, and PVC support sheets – enables stitch‑free, adhesive‑free construction for welded synthetic uppers. Applicable to footwear containing pure PVC or PVC content exceeding 30%.
Upper overlays & reinforcements: PVC film welded onto high‑wear zones (toe caps, heel counters, eyelet surrounds) for structural reinforcement and abrasion resistance.
Embossing & decorative applications: HF‑welded PVC films for 3D embossing, logos, and decorative patterns on shoe uppers and insoles.
Insole & Footbed Manufacturing
Multi‑layer insole lamination: Bonding EVA foam, fabric top sheets, and cushioning layers via HF welding.
Cushioning & support layers: PVC films as structural interlayers for enhanced footbed rigidity and comfort.
Other Footwear Components
Slipper & sandal assembly: Welded PVC straps and footbed components.
Protective footwear: Welded PVC film for waterproof bootie construction and seam sealing.
Labels & branding: HF‑welded PVC trademarks, stickers, and name plates.
Beyond Footwear
Bags & accessories: Welded PVC films for handbags, travel bags, and purses.
Rainwear & outdoor gear: Seam sealing for waterproof garments.
Product Parameter (specification)
| Material | PVC |
| THICKNESS | 0.8-2.0MM |
| Width | 1.37M/1.4M |
| Colors | Customized Color |
| Feature | Soft, wear resistant, waterproof |
| Use | Shoes material, bags, garment |
| MOQ | 500Meters |
| Term of Payment | By T/T, 30% deposit and 70% balance payment before delivery |
| Place of Origin | Fujian,China |
| Quanzhou | |
| Brand Name | Solamni |
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Frequently Asked Questions (FAQ)
What thickness of PVC film is recommended for HF welding of shoe uppers, and does thickness affect weld cycle time?
0.10–0.30mm for lightweight mesh/knit uppers; 0.30–0.80mm for synthetic leather and heavy‑duty applications. Thicker films require longer weld cycles – typically 1–3 seconds for 0.50mm vs. 0.5–1 second for 0.10mm at 27.12 MHz. We recommend trials to optimize your specific substrate and equipment.
What is the minimum PVC content required for effective HF welding with your filler films?
The substrate and filler combination must contain ≥30% PVC content for effective high‑frequency welding. Solamni's PVC filler films are formulated with 100% flexible PVC compound to serve as the bonding medium between compatible substrates. Pre‑production weld trials using your material stack‑up are available.
What is the MOQ and lead time for a custom‑thickness PVC HF welding filler film for shoe production?
Standard MOQ: 500 meters per thickness/color. Custom thickness or color matching (Pantone): 7–10 business days. Bulk production: 12–18 business days after sample approval. Sample rolls (50 meters) available for HF weld process validation.
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