Control - Consistency - Quality
AGENDA Brief introduction to Apex. Evolution of the Ceramic Anilox. (Laser tecnology) GTT Consistency Guaranteed. GTT Production Advantages
Global Position The world’s largest anilox & metering manufacturer. European Headquarters, Hapert, The Netherlands 5000 customers all over the world 80+ Global Sales Force Global Technical Application Support Worldwide Patent GTT Engraving.
Cells have limits and conventional open structures their problems The evolution moves on…
Ink Transfer Explained Isaac Newton – 2nd Law of Rotation Acceleration creates a G Force = a push backwards Rotation creates a Centrifugal force = A push outwards Gravity and anglular changes = A state of acceleration even when the rotation speed is constant Kinematics Angular acceleration, Angular displacement Angular velocity, Time
Effects of Applied Forces G – force conventional cell G – force is still applied to GTT but with no back wall creates minimal up lift G – force long cell Ipro – eflow – HVP
HOW RELEVENT ARE THE SCIENCE DETAILS ANILOX DIAMETER MM X Pi = circumference = mm PRESS SPEED 400 mpm divided by = revolutions per minute REVOLUTIONS PER MINUTE = 635 RPM REVOLUTIONS PER SECOND = 10.5 RPS Extremely Relevant
Genetic Transfer Technology GTT Explained
The structure of the GTT profile (90% ink channel / 10% wall) enables a much more controlled ink transfer. GTT FLEX S Screen structure, width and heights of the walls are completely under control. Magenta: AB AB AB Density 1,52Density 1,51Density 1,50
Anilox 340 l/cm volume 5 cm³/m² Measured value: Volume of anilox and density in magenta on the foil AB AB AB Volume 5,1 cm³/m²Volume 5,0 cm³/m²Volume 4,9 cm³/m² Density 1,23Density 1,52Density 1,41 Despite the same volume, different wall heights (finishing level) and bigger or smaller cell openings transfer a different amount of ink!
Technical background GTT Material Laser engraving New surface structure
GTT – Laser Technology New development - Low powered laser. Pulse replaced with constant beam. Programmed surface - No more hole by hole. Impossible to replicate with conventional laser.
Pulse Constant Pulse Constant GTT – Laser Technology
Technical background GTT Material Laser engraving New surface structure
Ink under tension “turbulences” “trapped air” “bubble effect” uneven ink- layer Calm stable ink. Even Transfer
GTT Flex XS for HDAnilox 420 L/cm (1000 lpi) ° ° ° ° ° ° ° 70 L/cm (175 lpi) screen dot 2% ° Ink can move over the channels.Ink can only escape upwards which quickly can lead to over-colouring and dot gain. ° °
Pressure causes counter- pressure, ink escapes through the opening. Result: Over-inking
Plate Anilox
What does GTT Bring Constant results (dot gain) Reproducibility from the first meter through until the last meter Standardization & Consistency Plant to Plant – Country to Country
GTT Consistency Guaranteed
Screen laser engraved quality control Microscope calibration Daily check by operators using calibration tool When measurements are out of calibration tolerances, microscope will be re-calibrated
Longer Plate Life Any (including Apex) standard or long cell anilox, whilst passing the printing plate, acts as a cheese grater on the plate dots. The top and bottom cell walls on either standard or long cells act as tiny knives. GTT has no top and bottom cell wall so is completely smooth.
Several Large organizations having seen the advantages of GTT now have group deals with Apex.
Our Commitment GTT Brings Control Consistency and Quality to the printing process. GTT Standardization ensures the same results from a GTT anilox in any press, in any factory and in any country. Standardization and repeatability is now a reality in any Flexo printing business on any printing press.
is nothing without
Thank you for listening. Questions ?