Cosmetics & Chemicals

SiO₂ barrier coating for
cosmetic and chemical packaging

The cosmetics and chemicals industries place high demands on packaging that must protect against moisture,
oils and chemical substances.
With NP® SiOPack® , a water-based, inorganic SiO​ thin-film technology is available that provides paper, carton and moulded fibre materials with a functional barrier layer that is environmentally responsible, food-contact compliant and sustainable.

The technology replaces conventional polymer-based coatings and enables the production of recyclable and compostable packaging suitable for cosmetic products and chemical substances — without compromising functionality or safety.

Functional principle of the coating

NP® SiOPack® uses a water-based sol-gel process to apply an ultra-thin SiO​ layer (5-100 nm) to the paper surfaces.
After drying, this layer forms a functional surface combining hydrophobic and oleophobic properties.
The coating remains mechanically flexible and chemically stable, without altering the tactile feel or visual appearance of the base material.

Technical properties:

Functional principle of the coating

The SiO​​ barrier coating offers versatile application possibilities for the cosmetics and chemicals industries, enabling the development of sustainable and safe packaging solutions for a wide range of products.

Cosmetic packaging

Cream tubes, shampoo bottles, folding cartons

Key benefits

Moisture- and oil-repellent protection

Chemical packaging

Trays, cups, folding cartons

Key benefits

Oil resistance, dimensional stability and food-contact compliance

Secondary packaging

Secondary packaging for cosmetic products

Key benefits

Protection against external influences and enhanced sustainability

The NP® SiOPack®​ approach provides the cosmetics and chemicals industries with a sustainable, food-contact compliant and process-compatible solution that combines functionality with regulatory compliance — ideal for the development of innovative, environmentally responsible packaging solutions.