PLA Double Seal Film-Keyful PLA-DS
• Derived from renewable corn, certified for industrialcomposting.
• 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 transparency and gloss, excellent fold resistance, and strong mechanical properties
•Functionality: Inherent anti-static properties and excellent resistance to oils and grease.
The core value of Keyful PLA-DS lies in its dual-sided heat sealability and its ability to bridge the gap between high-end aesthetics and environmental compliance. For B2B buyers, this compostable heat sealable PLA film reduces the complexity of the supply chain by offering a single-material solution that simplifies the recycling and composting stream. With its 120% elongation at break and consistent coefficient of friction ($0.4/0.45$), it ensures mechanical reliability on high-speed conversion equipment, effectively lowering the total cost of ownership by reducing waste and downtime while significantly enhancing the brand’s sustainable profile.
We focus on the research & development, production, manufacturing, and supply of various flexible, environmentally friendly, and biodegradable packaging films, covering BOPP, BOPET, BOPA, PE, and recyclable single-material films, and are committed to meeting the diverse packaging solution needs of the market.
Keyful PLA-DS is a high-performance PLA double seal film engineered from renewable corn starch, offering a fully certified industrial composting solution. Unlike standard films, this biodegradable double seal PLA film boasts inherent anti-static properties and superior grease resistance, making it an elite choice for high-speed automated lines. With a robust 40-micron thickness and balanced tensile strength (120 $MN/m^2$ in both MD/TD), it provides the structural integrity required for premium flexible packaging without compromising its eco-friendly DNA.
As a leading double sided heat sealable PLA film manufacturer, we offer a substrate with exceptional surface energy stability. It is optimized for sophisticated B2B branding, supporting Flexo, Gravure, and UV printing, alongside premium hot foil stamping for a high-end aesthetic. This eco-friendly double seal PLA ensures that sustainability doesn’t come at the cost of shelf appeal, providing high gloss and transparency that rivals traditional petroleum-based plastics while maintaining a much lower carbon footprint.
Applications
- Flexible packaging industry: commonly used for mono layer bag making, including bags for garments, vegetables, components, toys, etc.; also suitable as a heat-seal layer in multilayer structures
Technical Properties (Typical Values)
| Property | Unit | Result | Test method |
|---|---|---|---|
| Thickness | microns | 40 | DIN 53 370 |
| Tensile strength MD/TD | MN/m² | 120 | ASTM D 882 |
| 120 | |||
| Elongation at break MD/TD | % | 120 | ASTM D 882 |
| 125 | |||
| Heat shrinkage MD/TD | % | 4 | ASTM D1204 100°C / 10 min |
| 1.8 | |||
| Seal strength | N/15mm | 5 | 135kPa / 85°C / 2S |
| Coefficient of friction (film to film) | / | 0.4 | ASTM D 1894 |
| 0.45 | |||
| Oxygen permeability | cc/m²·d | 336 | ASTM D3985 23°C / 0% R.H. |
| Water vapor permeability | g/m²·d | 987 | ASTM F1249 38°C 90% R.H. |
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.
