Yield-Driven Solutions for Labeling, Tapes, and Composites
In high-speed converting, the release liner is the silent hero. It must withstand rotary die-cutting pressure, resist humidity curling, and release smoothly at speeds exceeding 100 meters/minute. YINGFEI (Guangzhou Yingfei Paper and Plastic Products Co., Ltd.) is a dedicated Release Paper Manufacturer solving the dimensional stability challenges of the adhesive industry.
From Super Calendered Glassine (SCK) for optical sensing labels to Poly-Coated Kraft (PCK) for moisture-sensitive tapes, YINGFEI provides the technical substrate that keeps your production line running without breaks. Our integrated coating lines control silicone weight to the micro-gram, ensuring consistent peel force from the first meter to the last.
Engineering Challenges & Solutions Matrix
In the world of B2B converting, “cheap” paper often costs more in downtime. We address the root causes of production failure
| The Production Pain Point | The Manufacturing Consequence | The YINGFEI Solution |
| Fiber Fracture (Dusting) | Paper dust builds up on die blades and blocks optical sensors, forcing frequent machine stops for cleaning. | High-Density Pulping: Our Glassine undergoes extreme super-calendering to create a hard, sealed surface that cuts cleanly without generating loose fibers. |
| Hygroscopic Curling | Humidity changes cause the paper to curl, leading to “tunneling” (liner separating from face stock) and printer jams. | Moisture Lock Technology: We use re-humidification chambers and Double-Sided PE Coating options to seal fibers against environmental moisture, ensuring lay-flat performance. |
| Web Breaks | Liner snaps under high tension during matrix stripping (waste removal), causing catastrophic line stops. | High Tensile Strength: We source virgin wood pulp with long fibers to maximize MD (Machine Direction) tensile strength, supporting high-speed stripping. |
| Silicone Migration | Uncured silicone transfers to the adhesive, killing its tackiness (Ghosting). | Platinum Thermal Curing: Our solvent-free silicone systems are thermally cured and tested for 98% anchorage (Rub-off Test) to prevent any migration. |
Precision Labeling & Rotary Die-Cutting
For the pressure-sensitive label industry, the liner must be thin, tough, and transparent
The Hero Product: 60g / 80g Super Calendered Glassine (White/Blue/Yellow)
Process Application:
- Rotary Die-Cutting: The dense surface of YINGFEI Glassine provides an excellent "anvil" for the die, allowing for kiss-cutting precision within +/- 3 microns.
- Automatic Dispensing: Our glassine offers superior translucency, allowing optical sensors in high-speed labeling machines to accurately detect label gaps.
- Matrix Stripping: High internal bond strength prevents the paper from delaminating or snapping when the waste matrix is stripped away at high angles.
Industrial Tapes & Medical Applications
Industrial tapes (Double-sided, Foam, Conductive) require a liner that is dimensionally stable and moisture-proof.
The Hero Product:
Single/Double-Sided PE Coated Paper (PCK)
Process Application:
Moisture Barrier
The extruded Polyethylene (PE) layer creates a waterproof shield. This is critical for medical patches and hygiene products where sterilization or humidity resistance is needed.
Foam Tape Lamination
The PE layer adds microscopic "loft" or cushion, allowing aggressive foam adhesives to wet-out fully without penetrating the paper fibers.
Lay-Flat
For sheeted products (like laser labels), double-sided PE coating balances the tension, ensuring the sheet lies perfectly flat.
Composites & Advanced Materials
Manufacturing Carbon Fiber Pre-pregs and Aerospace Composites requires a liner that can handle the heat.
Process Application:
- High-Temp Curing: Unlike PE papers that melt at ~110°C, CCK withstands curing temperatures up to 130°C+, making it essential for pre-preg manufacturing lines.
- Dimensional Stability: The clay coating seals the surface for silicone hold-out while maintaining the paper's structural rigidity, preventing buckling during lamination.
- Cost-Effective Rigidity: Offers better stiffness than Glassine at a lower cost point than heavy PE-coated papers.
The Hero Product: Clay Coated Kraft (CCK) Release Paper
Technical Specifications (The Data Sheet)
Critical Parameters for Material Selection
| Property | Glassine (SCK) | PE Coated (PCK) | Clay Coated (CCK) |
| Basis Weight | 58g – 80g | 80g – 180g | 70g – 140g |
| Caliper (Thickness) | 50μm – 70μm | 90μm – 190μm | 80μm – 150μm |
| Tensile Strength (MD) | > 6.0 kN/m | > 7.5 kN/m | > 5.5 kN/m |
| Heat Resistance | Medium (100°C) | Low (PE melts >110°C) | High (130°C+) |
| Moisture Resistance | Low | Excellent (Waterproof) | Medium |
| Release Force | 3g – 50g | 5g – 200g | 10g – 100g |
| Key Application | Roll Labels | Tapes / Medical | Composites / Graphics |
Quality Assurance Protocol (Why Trust YINGFEI?)
We don’t just sell paper; we sell process reliability. Every master roll undergoes the following rigorous tests
Rub-off Test (Silicone Anchorage)
We vigorously rub the silicone surface to ensure no coating lifts off. This guarantees the silicone is permanently bonded to the paper.
Keil Test (Aging)
Samples are aged at 70°C for 24 hours to simulate long-term storage, ensuring the release force doesn't double or triple over time.
Dye Stain Test
We apply a penetrative dye to the surface to check for pinholes or uneven silicone coverage.
Humidity Chamber
For PE papers, we test lay-flat properties in cycling humidity chambers to prevent field failures.
Frequently Asked Questions (Engineering FAQ)
Single-Sided is used for standard labels or wrappers where only one side needs release properties. Double-Sided is used when the paper needs to be absolutely flat (the PE on the back balances the tension) or for adhesive transfer tapes where both sides contact adhesive.
It is risky. Glassine is sensitive to humidity and tends to curl. For sheeted applications (like office labels), we recommend CCK or Lay-flat PE Coated Paper to prevent printer jams.
Yes. For double-sided tapes, we can coat one side with a “Light” release (e.g., 10g) and the other with a “Tight” release (e.g., 50g) to ensure the liner peels off in the correct order during application.
Start Your Validation Process
Stop compromising on liner quality. Contact YINGFEI’s engineering team for a consultation and request a customized sample kit tailored to your die-cutting speeds.
Request a Quote Now
Our Commitment to You
Contact Information
-
Email
sales@yingfei.com -
Phone/WhatsApp
+86-18933941186 -
Factory Location
Beside the Jiangkou Sluice in Xiawei Village, Shitan Town, Zengcheng District, Guangzhou City