Vacuum metallizing system PAK

plastic filmfor paper

Overview
The LEYBOLD OPTICS PAK series is a roll-to-roll vacuum metalizing system for applying aluminum, copper or transparent aluminum oxide (AlOx) coatings onto polymer and paper substrates. Suited to barrier, optical and protective layer applications across packaging and sensitive-electronics markets.

Key benefits

• Flexible product portfolio: available as PAK, PAK+ and PAK T+ to match production capacity and coating type.
• Productivity scaling: PAK+ and PAK T+ support wider coating widths and higher line speeds to increase throughput without changing substrate handling concepts.
• Material and process versatility: supports metallic and plasma-reactive oxide coatings for varied barrier and optical requirements.

Highlight features

• Plasma pre-treatment combined with the AdhesionPlus gas-injection module for cleaning, ablation, cross-linking and surface modification to improve adhesion and reduce permeability.
• Plasma-activated deposition for transparent AlOx barrier layers, high-rate evaporators and wire-feeding technology for stable layer formation.
• Optimized gas distribution and fully automatic cross-layer control for uniformity, transparency and long-term stability.
• Innovative winding technology with special roll surface for grip without foil slippage, efficient cooling and support for high-speed processing of temperature-sensitive materials.

Models and typical applications

• LEYBOLD OPTICS PAK — roll-to-roll coating solution for coating widths ~1300–2500 mm; suitable for very thin to thick coatings (architectural glass interlayers to food and photosensitive electronics packaging).
• LEYBOLD OPTICS PAK+ — designed for high-volume margins-sensitive packaging; coating widths ~2500–3700 mm and increased processing speeds.
• LEYBOLD OPTICS PAK T+ — designed for high-volume transparent barrier solutions using plasma-reactive deposition of AlOx on flexible plastics (e.g. PET, BOPP); available for 2500–3700 mm widths.

Technical specifications

• Series: LEYBOLD OPTICS PAK series (PAK, PAK+, PAK T+).
• Coating materials: aluminum (Al), transparent aluminum oxide (AlOx), copper (Cu).
• Coating widths: PAK ≈ 1300–2500 mm; PAK+ / PAK T+ ≈ 2500–3700 mm.
• Maximum roll diameter: up to 1550 mm (depending on configuration).
• Productivity improvement: PAK+ / PAK T+ can provide typical throughput increases in the range of ~30% (up to ~40% in specific high-speed PAK+ configurations).
• Process modules: plasma pre-treatment, AdhesionPlus gas-injection, plasma-activated deposition, high-rate evaporators, wire feeding, advanced gas distribution, automatic cross-layer control and optional in-situ layer aging.
• Substrates: polymer films and paper—examples: PET, (B)OPP.
• Coating thickness range: from very thin optical/interlayer films to medium food-packaging layers and thick coatings for photosensitive electronics.