Product Function Characteristics 
Excellent barrier against gases (oxygen, nitrogen, carbon dioxide, etc.), aromas and odors; 
Gas resistance is not easily changed due to stretching, scratching, twisting or folding during processing; 
It has superior mechanical performance like conventional BOPA films, including impact and puncture resistance. 
Application areas Freshness Lock EHA is suitable for food packaging with high requirements for gas barrier and aroma/flavor retention, such as sauces, meat products, nuts, ready-to-cook vegetables, cakes, and pet food. With its superior gas barrier, EHA ensures food retains its original flavor for longer and allows the contents to be visible, increasing consumer confidence and purchasing intention. Compared with coating-based barrier films, EHA's gas barrier performance remains stable even when processed, squeezed, or twisted.
In addition, EHA can also be used for sheet mask packaging, premium balloons, VIP vacuum insulation panels, as well as industrial/cosmetic packaging that requires optimal airtightness.
Recommended Processing Conditions | Model (thickness) | Corona Surface | Print capacity | Seal width | Retort Resistance |
| EHAp -15μm | Single/double | ≤8 colors | ≤6 cm | ≤85℃ |
| EHAr -15μm | Single/double | ≤8 colors | ≤6 cm | ≤100℃ |
Main Technical Parameters (15μm) | Test Items | Testing standards | Standard Value | Test Items | Testing standards | Standard Value |
| EHAp Tensile Strength （MD/TD） Tensile Strength EHAr | GB/T 1040.3-2006 | 210/220MPa 200/200MPa | Surface tension (single corona) Surface tension (double corona) | GB/T 14216-2008 | Treated 54/Non-treated 39 mN/m inside 54/ outside 50 mN/m |
| （MD/TD） Nominal tensile strength | GB/T 1040.3-2006 | 100-130/90-120% | Friction coefficient (static/dynamic, non/non) | GB/T 10006-2021 | 0.50/0.35 |
| Puncture resistance strength | GB/T 10004-2008 | 9 N | Fog | GB/T 2410-2008 | 4.0% |
| (MD/TD)(160℃,5min) Heat shrinkage rate | GB/T 12027-2004 | ≤2.0% | EHAp oxygen transmission rate (23℃,50%RH) EHAr oxygen transmission rate | GB/T 1038-2022 | ＜2cc/(㎡.day.atm) ＜8cc/(㎡.day.atm) |
Standard Specifications | Model (thickness) | Roll length/m | Standard Slitting Width/mm | Ukuran paper core/in | Packaging |
| EHAp/EHAr-15μm | 6000 | 300-1400 | 3 | 9 units/pallet |
| 12000 | 6 | 4 units/pallet |