Need for Surface Treatment Tester

Plastic film and Plastic containers used in the packaging play an important role as the films are printed with attractive eye catching coloursons on pouches and various packs. These plastic films and containers are specially treated for the print or the lamination to stick to the film so that the INK or the print does not come off/peel die to handling or friction.

Usually these plastic or films are containers are BOPP,LDPE,HDPE etc suck films are INERT or NON POLAR in nature, therefore they do not “ ACCEPT” printing/coating on these surface unless surface is oxygenated or made POLAR.

These surface are treated is done either by HIGH VOLTAGE CORONA DISCHARGE or BY FLAME.

HOW DOES IT WORKS :

• While testing treatment levels, of the INK from the pen forms an UNIFORM LAYER for atleast for TWO SECONDS without breaking I to DROPLETS, then treatment level marked on the PEN MATCHES with the treatment level of the TREATED FILMS. (Please do not count breaking of ink making at the EDGES as failure).
• While testing treatment levels, of the INK from the pen forms an UNIFORM LAYER for atleast for TWO SECONDS without breaking I to DROPLETS, then treatment level marked on the PEN MATCHES with the treatment level of the TREATED FILMS. (Please do not count breaking of ink making at the EDGES as failure).
• On such poorly treated or untreated, if printing or Lamination is done, then such film we have POOR INK adhesion i.e. print/ink will flake/or ink dry film will come off due to frictional rubbing/mechanical handling resulting in Non Acceptability either by buyer/consumer.
• Paper and Boards Mills, for checking Coatings and Varnish ability of Coated Paper and Board.
• Hence testing of surface treatment level is must for certain variety of PLASTIC FILMS and CONTAINERS as mentioned.
• Please note for good print adhesion or for good lamination minimum treatment of 38 Dynes/cm or more is required.