Due to numerous economic, processing and safety issues, an increasing number of flexible packaging converters are seeking to either replace or compliment their existing solvent and solvent free products, with water-based adhesives. Scitech’s new high performance water-based products can serve as bespoke customer specific solutions to this ever growing demand. We have a passion for solving technical problems and with our vast experience in the bonding of complex and demanding substrates, we welcome any new opportunities or development projects that come our way.
Past limitations with Water-Based
Our machine can’t dry water.
It will not work for more complex film to film laminations.
The machine speeds will be slower.
Why laminate with Water-Based?
New high performance water-based technology can laminate film to film, film to foil and film/foil to paper (For example OPP/OPP, OPP/PE, PET/PE, OPP/MOPP etc).
Runs on existing dry laminators with very simple modifications.
Greater potential cost savings over solvent and solvent-free technology.
Faster processing and speed to market – No work in progress.
Excellent clarity offering improved gloss of laminate.
Improved user friendliness – no viscosity adjustments needed and easy to mix.
No VOC’s (volatile organic compounds) or dangerous goods issues.
Safer, improved regulatory compliance, such as with ‘The Migressives Project’.
Odour free laminates.
Advantages over Solvent-Free adhesives
Runs on existing dry laminators – new machine not required.
No long post lamination curing – water-based offers an in line production process allowing instant slitting, saving customers time and money.
Metallized jobs can be run without needing to slow the machine speed down.
Ideal for film to paper, for example soap wrappers.
No Primary Aromatic Amines (PAA’s).
Advantages over solvent-based adhesives
Greater cost effectiveness.
Lower coat weights applied.
Dry adhesive cost is lower.
In line process allows for instant slitting & cure.
Odour free laminate – no solvents.
No need to dilute for machine runs.
Avoids the need to control viscosity during production.
What your dry laminator will need
Suitable gravure &/or transfer roller application method.
Suitable drying tunnel.
Temperature controlled nip roller.
Tank for adhesive recirculation.
Water-based adhesive particle properties mean drying is easier and safer.
White when wet, clear when dry.
Longer tunnels with zoned systems are most suitable but not necessary.
Good air volumes & air velocity is advantageous.
Positive air exhaust volumes.
No recirculation of exhausted air between zones.
Simple tests can be carried out to determine the efficiency of the drying tunnel.
What we can offer
We know that one product does not suit everybody and as a result scrutinize the customer’s machine and overall application very closely. This attention to detail ensures the product we offer is both unique and bespoke to fit the requirements. We have extensive experience when it comes to flexible packaging and are passionate about working closely with our customers and providing a product that delivers optimum performance.