Compostable Cellulose Double Matte Protective Film – Keyful CP-DMP
Eco-Sourcing: Derived from renewable wood pulp. Certified for industrial and home composting.
Printability: Stable surface tension. Compatible with Flexo, Gravure, Offset, Screen, and UV printing. Supports premium hot foil stamping to deliver a sophisticated, high-end aesthetic.
High Barrier: Superior moisture, water, and oxygen resistance. High gloss and crease-resistant.
Functionality: Inherent anti-static properties and excellent resistance to oils and grease; features superior scratch and abrasion resistance (withstands 1,000 cycles at 4 lbs load).
Outstanding Surface Performance: Features a dual-sided matte texture with a flawless surface free of crystal points; matte level of 4-5 degrees.
Keyful CP-DMP offers compostable-certified, high-barrier, abrasion-resistant, double matte film, combining stable printability and heat-sealing compatibility. It supports customized thickness and texture, enhances brand image and product durability, and simplifies large-scale batch processing and one-stop customization services.
Keyful CP-DMP bio-based biodegradable double matte protective film uses renewable wood pulp as raw material and has industrial and home composting certifications, making it environmentally friendly and sustainable. The film’s surface tension is stable and compatible with Flexo, gravure, offset, screen, and UV printing. It also supports high-end hot stamping effects for a premium visual appearance. It exhibits significant high barrier performance, with an oxygen transmission rate of only 0.5 cc/m²/day. It is moisture-resistant, oxygen-resistant, resistant to high gloss, and has a scratch-resistant surface.
The double-sided matte texture (4 GU haze, low gloss, and delicate feel) has no crystal points on the surface and excellent abrasion resistance, withstanding 1000 rubs under a 4 lb load. The heat sealing temperature is 120–160°C, the strength is 1.91 g/25mm, the MD tensile strength is 70 MN/m², the TD is 40 MN/m², the MD elongation is 25%, and the TD is 60%. There is significant anisotropy in the MD–TD direction, which facilitates customized composite structure designs. It is suitable for wrapping applications such as mobile phones, 3C digital products, and data cables, and has excellent barrier, abrasion resistance, and surface properties.
Applications
Visual & Tactile Appeal: Imbues packaged products with an unparalleled high-end aesthetic and a delicate, smooth touch.
Die-Cutting Industry: Used for wrapping mobile phones, 3C electronic products, data cables, and related accessories
External coating for electronic accessories & devices:
Provides a protective outer layer for small •electronic products such as data cables, headphones, and chargers, improving wear resistance and fingerprint resistance.
High-end brand mobile phone & accessories market:
Offers customized texture depth and optical performance, supporting brand hot stamping/glossing finishing.
Medical & consumer electronics packaging:
Meets strict barrier and surface cleanliness requirements, facilitating secondary recycling and degradation.
Technical Properties (Typical Values)
| Property | Unit | Result | Test method |
|---|---|---|---|
| Thickness | microns | 55±2 | DIN 53 370 |
| Unit weight | g/m² | 82.5±2 | ASTM D-2673 |
| Yield | m²/kg | 12.1±2 | ASTM D-2673 |
| Tensile strength MD/TD | MN/m² | 70/40 | ASTM D 882 |
| Elongation at break MD/TD | % | 25/60 | ASTM D 882 |
| Seal strength | g(f)/25mm | 1.91 | 135°C; 0.5secs; 69kN/m² |
| Seal range | °C | 120-160 | 0.5secs; 69kN/m² |
| Coefficient of friction (film to film) | / | 0.49/0.45 | ASTM D 1894 |
| Oxygen permeability | cc/m²·d | 0.5 | ASTM D-3985 23°C / 0% R.H. |
| Water vapor permeability | g/m²·d | 22 | ASTM F1249 38°C 90% R.H. |
| Wear Resistance | / | 4 LB 1000 times | ASTM D4060 |
| Optical: Gloss Haze (wide angle) | GU | 4 | ASTM D2457 60° |
All properties are tested under standard laboratory conditions: 23±2ºC; 50±5% RH, unless otherwise stated. Where relevant, tests are based on international testing standards. Metallising is conducted by a sub-contractor. MD – Machine Direction TD – Transverse Direction.
