30g Greaseproof Paper Kit 6 Medium Oil Resistance for General Food Packaging
This 30 g/m² greaseproof paper achieves Kit 6‑7 oil resistance, suitable for a wide range of fast‑food applications including hamburgers, fried chicken, and french fries, withstanding oil penetration for up to 120 minutes. It is manufactured with a fluorine‑free bio‑based coating (modified starch + chitosan), balancing oil resistance and environmental safety.
Technical Specifications (QB/T 1014‑2010 & GB 4806.8‑2022)
| Parameter | Unit | Value |
|---|---|---|
| Basis Weight | g/m² | 30 ±2.5 |
| Thickness | mm | 0.04‑0.06 |
| Grease Resistance (Kit) | grade | Kit 6‑7 |
| Whiteness | % | ≥72 (no fluorescent agent) |
| Tensile Strength MD | kN/m | ≥2.8 |
| Tensile Strength CD | kN/m | ≥1.6 |
| Burst Strength | kPa | ≥220 |
| Coating Weight (single side) | g/m² | 1.5‑2.5 |
| Temperature Resistance | ℃ | -20 to 180 |
| Food Safety | — | GB 4806.8, FDA, EU 10/2011 |
Process Introduction
Base paper made from 70% softwood + 30% hardwood pulp, beaten to 76‑78°SR. The web is formed, pressed, pre‑dried, and soft calendered. A fluorine‑free bio‑coating (modified starch + chitosan, solid content 10‑20%, viscosity 50‑200 mPa·s) is applied via metering rod or blade coating at 1.5‑2.5 g/m² per side. Post‑drying at 80‑120°C crosslinks the coating. Final hard calendering at 70‑90°C achieves smoothness ≥400s.
Applications & Advantages by Category
Hamburger Wraps – Resists burger grease for over two hours; keeps hands clean.
Fried Chicken Bags – Prevents oil bleed‑through; maintains crispiness.
French Fry Trays – Ideal for fast‑food tray liners; absorbs excess oil.
Baking Paper – For cookies and pastries; non‑stick and oil‑proof.
Why Choose This Paper
30g medium oil resistance paper is the most versatile grade, meeting 80% of fast‑food packaging needs with an eco‑friendly fluorine‑free coating.
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