VARNIFLEX FoodGrade BioHybrid

PROPERTIES: VarniFlex FoodGrade BioHybrid is an innovative colorless, self-crosslinking, 1-component aqueous dispersion, partially bio-based (45%±2%), acrylic overprint varnish for the contribution to the improvement of the carbon footprint, thanks to the certified reduction of up to 58% of CO2 emissions. indirect with food. Overprint varnish with gloss finish, formulated with modified acrylic copolymers, free of Bisphenol A, APEO, formaldehyde, phthalates, heavy metals, etc.

FIELDS OF USE: Mainly for external protection of PE (polyethylene), PP (polypropylene) and PET (polyethylene terephthalate) flexible packaging, with limited application to indirect food contact, and also for use in non-food packaging in general given its significant contribution to the reduction of CO2 emissions.

Important Note: Although VarniFlex FoodGrade BioHybrid has been successfully tested for direct food contact according to EU 10/2011, its partially bio-based innovation means that it contains a small amount of a bio-based monomer which is currently not listed in the positive lists, so we prefer to limit its use to indirect contact for regulatory reasons. (More info page 3 data sheet).

VarniFlex FoodGrade BioHybrid as a self-crosslinking coating, although it is also air-drying, obtains its best and suitable performance for food packaging with a short forced drying, up to 2 minutes at 80°C or equivalent (depending on thickness and substrate). Ideal balance of physicochemical performance in its category:

• Excellent reduction of CO2 emissions.
• High resistance to humidity, water and grease.
• Very good physicochemical and heat resistance.
• Balanced barrier functions in its category.
• Excellent transfer, wetting and leveling.
• Excellent adhesion, resistance to dry and wet rubbing (SATRA), and compatibility with water and solvent based printing inks.
• Good resistance to tack-blocking, with good static and dynamic COF coefficients of friction.
• Excellent gloss finish.
• Recyclable and repulpable.
• Low Voc and low odor.
• Compatible with most containers, heat sealable, hot melt glues, recyclable, compostable and biodegradable containers.
• Not dangerous goods, neither for its use, nor for its transport by road, sea or air.
  With Declaration of Food Conformity, limited to indirect contact (for the moment).

Bio-Based Technology: VarniFlex FoodGrade BioHybrid has a content of 45±2% of bio-based solid coating material. According to the life cycle analysis, it presents a reduction of 58% in CO2 emissions compared to a similar conventional non-bio-based product (such as Varnipack FoodGrade), providing a significant improvement in the carbon footprint in its category. External certification carried out by AIMPLAS within the framework of the official R&D&I project "BIO-HYBRID Food Contact Coatings" and according to ISO 14040 and ISO 14044 methodology.

APPLICATION METHODS: Compatible with most application methods for packaging, flexographic and hollow engraving, anilox rollers, curtain coating, coating with blowing lip, industrial spraying and other systems compatible with aqueous dispersions, with forced drying by hot air, infrared lamps or equivalent systems with heat, which provide adequate drying. Other sectors, with brush, roller, airless and air-mix equipment.

DRYING: forced with hot air, IR infrared lamps or equivalent systems that increase the temperature to at least 80ºC, 2 minutes.

PERFORMANCE - CONSUMPTION in PACKAGING: In packaging, depending on the state, type of base and subsequent use, it is recommended between 12.5 and 25 ml/m² applied in thin layers.

Product for professional use. For a correct application follow the indications of the technical data sheets, application guides and safety data sheets. In case of doubt consult our technical service.