GRAPHIC ARTS |PLAKENE ® | PRINTING SYSTEMS
PRINTING SYSTEMS

RECOMMENDATIONS PRIOR
TO THE PRINTING PROCESS

During Plakene® production, a corona treatment is applied to increase the surface tension (greater than or equal to 42 dyne/cm), by employing a high-voltage, high-frequency discharge. This process changes the molecular composition on the surface of each sheet, facilitating the adhesion of inks and optimising its capacity for subsequent printing.

Keep in mind that the length of time this treatment will last depends on the time since its application and ambient conditions. We therefore recommend testing the surface tension with the inks you wish to use, before proceeding to the print run.

Primer varnishing improves the fixing of the inks and the application of a final layer of varnish protects products from possible scratching.

Controlling the temperature of the drying lamps is also important too much heat can cause deformations to the material that could damage the print quality.

OFFSET

With high-quality corona treatment, Plakene® provides excellent results with this printing system,

Which is indirect.
In offsetting, the sheet has the property of accepting or repelling oils. It is based on the principle that 'water and oil do not mix, but repel'.
The water rollers moisten the parts of the sheet's surface that are not oily (where there is no image). Then the ink rollers impregnate the oily surfaces (where there are images, screen dots), leaving the wet parts free from ink. The press cylinder picks up the ink, transfers it to the blanket cylinder and passes it onto the Plakene® sheet.

VERY IMPORTANT: When placing your order, you must clearly specify that the Plakene® sheets are going to be offset printed, as well as specifying any specific inks that you wish to use.
We recommend not using the material three months after its production date.

SCREEN PRINTING

This is the most common system for printing Plakene® for several reasons:moderate cost, great flexibility and easy stamping of the entire range of thicknesses and sizes.

A woven mesh is tensed over a rectangular frame and a photo-sensitive emulsion is applied. When exposed by a film positive (image), hardening takes place in the areas that you do not want to print. Then the substance that was not exposed is rinsed, creating open areas on the screen. On the press, the mesh is brought into contact with the surface to be printed. Then the ink is applied to the open areas of the stencil via a rubber roller.

MELNIK uses three
types of inks in this
printing system: single
component, dual component
and UV drying, where selection depends
on the end result, the speed required and the drying
procedure selected.

STAMPING &
EMBOSSING

Stamping is printing by thermal transfer and pressure.
This technique has the feature of being able to work with transferable inks or foils, with high-resolution pigmentation that can be transferred to the Plakene® sheets at temperatures between 100º and 300º C. There are specific films for this printing process available on the market.
Results are spectacular and particularly well-suited for packaging perfumery products, cosmetics and other similar uses.

Plakene® can also be embossed perfectly. This process produces a three-dimensional embossed effect. Two dies are required, a male and a female, which are simultaneously applied to the Plakene® sheets. One die presses into the material, with the other acting as counter-pressure for the embossing. This is a great creative resource that will never go out of fashion.

Gama Plakene