BOPLA High-Barrier Glossy Film – Keyful PLA-TBM
•Derived from renewable corn, certified for industrial composting.
•Outstanding printability: stable tension performance, compatible with flexographic, gravure, offset, screen, and UV printing, and perfectly supports hot stamping and other premium finishing processes, delivering a high-end look and feel.
•Excellent barrier properties: resistant to moisture, water, and oxidation, with fold resistance and high gloss.
•Functionality: Inherent anti-static properties and excellent resistance to oils and grease.
Oxygen barrier: 20; water barrier: 15.
Keyful PLA-TBM combines industrial compostability with high barrier and high gloss properties: Stable tension enhances printability of BOPLA glossy film, provides strong oxygen and moisture barrier performance, and offers antistatic and oil resistance, making it ideal for customized flexible food packaging.
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 BOPLA High-Barrier Glossy Film -PLA-TBM is based on industrial compostable PLA derived from renewable corn, possessing certified compostability. It exhibits a high-gloss appearance and a delicate feel, while a stable tension system enhances the printing adaptability of the BOPLA glossy film, compatible with flexographic, gravure, offset, screen printing, and UV printing.
It is also friendly to high-end post-processing such as hot stamping. In terms of performance, it features a low oxygen transmission rate (down to 20), excellent wetting/moisture and oxidation barrier properties, and inherent antistatic properties with good resistance to oils. It is suitable for brand packaging seeking consistent quality and supply chain compliance.

Applications
Flexible Packaging Industry: Used as an intermediate barrier layer, a surface printing layer, or a heat-sealable layer in tea bags, coffee packaging, and food packaging.
Flexible Packaging Converters: Can be used as a heat-seal layer/laminate layer in multilayer structure designs, reducing moisture regain and improving the after-opening appearance of finished products.
Tea & Coffee Brand Customizers: Used for high-gloss surface presentation and fine printing effects, combined with hot stamping/advanced processing to enhance shelf appeal and brand texture.
Sustainable Packaging Supply Chain Providers: For customers requiring industrial compost certification, serves as a Compostable glossy BOPLA film structural material to support green compliance and differentiated promotion.
Technical Properties (Typical Values)
| Property | Unit | Result | Test method |
|---|---|---|---|
| Thickness | microns | 15±2 | DIN 53 370 |
| Tensile strength MD/TD | MN/m² | 108 | ASTM D 882 |
| 150 | |||
| Elongation at break MD/TD | % | 127 | ASTM D 882 |
| 87 | |||
| Heat shrinkage MD/TD | % | 4.1 | ASTM D1204 100°C / 10 min |
| 3.1 | |||
| Seal strength | N/15mm | 7.2 | 135kPa / 85°C / 2S |
| Coefficient of friction (film to film) | / | 0.4 | ASTM D 1894 |
| 0.45 | |||
| Oxygen permeability | cc/m²·d | 20 | ASTM D3985 23°C / 0% R.H. |
| Water vapor permeability | g/m²·d | 15 | 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.







