PET/PE composite film is a high-clarity, tough and seal-reliable composite film engineered for medical devices and pharmaceutical flexible packaging. The typical structure combines polyester (PET) as the outer layer for stiffness, printability and puncture resistance, and polyethylene (PE) as the inner, heat-sealable layer for clean seals and product contact safety.
Compared with PVC/PVDC or Alu-Alu systems, PET/PE offers:
Crystal clarity for visual inspection of contents.
Excellent toughness & puncture resistance (drop/impact protection).
Wide sealing window with strong or peelable seals.
Compatibility with common sterilization methods (EtO, gamma; steam* depending on grade).
PVC-free construction that supports many hospital/clinic preferences.
Typical use cases: medical device pouches (syringes, catheters, IV components), diagnostic kits, swab/test kit overwraps, nutraceutical/OTC sachets, hospital supplies, auxiliary top/bottom webs for thermoform-fill-seal (TFFS).
Structure & How It Works
Standard structure: PET (12–25 μm) // Solvent-free adhesive // PE (40–100 μm, LDPE/LLDPE/MDPE blend)
PET (outer web): stiffness, dimensional stability, scratch resistance, high gloss or matte finish, great print holdout (reverse printing available).
Adhesive: medical-grade, low-odor, low-VOC, solvent-free options available; validated bond strength.
PE (seal/contact layer): direct product contact, clean peel or permanent seal; can be tailored for easy-open, chevron or high-strength sealing.
Optional functionalities
Anti-fog / anti-static / slip-controlled COF.
Peelable seal to Tyvek®/paper/PE; or permanent seal to PE-based webs.
Matte or soft-touch outer finish; UV-blocking tints; printed registration marks.
High-barrier add-ons (e.g., PETmet/PE or tie-in with EVOH coex) when oxygen/moisture barrier must be elevated beyond standard PET/PE.
product advantages
Clear visibility of contents for inspection and branding.
Seal integrity across a broad temperature range; seal-through-light contamination options.
Impact & puncture resistance vs. mono-PE or paper laminates.
Sterilization-ready
Typical Applications
Medical device chevron pouches and 3-side seal bags.
Diagnostic/collection kits, lateral-flow test components overwrap.
Nutraceutical & OTC sachets where visibility and toughness matter.
Secondary overwraps for thermoformed trays
Technical Specifications (typical, customizable)
|
Item |
Standard Range / Option |
Notes |
|
Total Thickness |
60–125 μm |
Project-specific builds available |
|
PET Layer |
12–25 μm |
Gloss or matte; printable (reverse or surface) |
|
PE Layer |
40–100 μm |
LDPE/LLDPE/MDPE blends; peelable or permanent |
|
Roll Width |
100–1,250 mm |
Tolerance ±0.5–1.0 mm |
|
Core ID |
3" or 6" |
Plastic or paper cores |
|
Treatment |
Corona 38–42 dyn |
Ensures ink/adhesive wetting |
|
COF (film/film) |
0.20–0.45 |
Tailored for pouching speed |
|
Seal Type |
Peelable / Permanent |
To PE, medical paper; chevron sealable |
|
Seal Window |
110–160 °C |
Depends on PE blend & line speed |
|
Haze/Clarity |
Low haze, high gloss |
Excellent product visibility |
Converting & Packaging Options
Printing: up to 8–10 colors; reverse printing under PET for scratch resistance.
Pouch formats: 3-side seal, fin/chevron, header pouches; tear-notch or laser-score.
Slitting: tight edge control for high-speed FFS lines.
Inspection: 100% inline surface/defect inspection available.
When to Choose PET/PE vs Alternatives
Choose PET/PE when you need transparency, toughness, and sterilization compatibility for devices/kits.
Choose PVC/PVDC when very high moisture barrier at low cost is critical for solid-dose blisters.
Choose Cold-forming Alu-Alu when near-zero OTR/WVTR and lightproof protection are mandatory for highly sensitive tablets.
FAQ
01.Is PET/PE safe for direct contact with pharmaceuticals?
02.Can I get an easy-open peel?
03.Which sterilization methods work best?
Hot Tags: pet pe composite film, China, manufacturers, suppliers, factory, customized, custom, wholesale, low price, free sample, film for metallic, film for textured, top coated pet film, die cut pet film, matte pet film, film for colored transparent
