Opale papers, text and boards give excellent printing results with all major print processes. To optimise the print results we offer some recommendations:

Design and pre-press

· A screen of 133 -150 lpi should be used.
· Finer screens up to a maximum of 200 lpi can also give very good results with careful ink density control.
· For dark 4 colour images with high ink density, under colour removal may be required depending on the visuals.
· Aim for the total ink film weight of 260%.

Offset litho printing

For optimal results on the Reference Fabric products, increase the blanket pressure or use a softer blanket to achieve consistent ink lay down.

Printing inks

· Conventional, positive drying inks should be used with or without infra-red drying assistance.
· Fully oxidizing inks or UV inks may also be used.
· Avoid using overnight / stay fresh / duct stable inks (this is essential for the Premier Shimmer range where fully-oxidising inks are recommended).
· Always allow sufficient drying time.
· Use laser stable inks for subsequent laser printing.
· It is always advisable to consult your ink supplier about specific projects to ensure ink suitability.

Paper handling

· To help avoid marking and set-off when printing multiple colours, 35micron anti set off spray for boards and 20micron for paper weights are recommended.
· It may also be helpful to turn off the delivery stack joggers and restrict the delivery pile height particularly when printing boards.
· Always protect paper from environmental humidity and temperature changes by using stack covers or stretch wrap.

Sealers and coatings

· Sealers and press coatings can be used to help reduce marking for further operations.
· Ensure the inks are suitable and best results are achieved when the inks are dry before sealing.

Varnishing

· To achieve a gloss varnish, it is essential to pre-seal the surface with Silk screen applied matt UV varnish, followed by subsequent applications of gloss UV varnish to achieve the desired effect.
· Ensure suitable inks are used prior to varnishing and that the inks are completely dry before varnish application.
· Not recommended for paper weights. Consider a clear hot foil as an alternative.

Screen printing

· All finishes can be successfully screen printed.
· Paper and board inks, vinyl inks and UV inks can be used.

Blind embossing

· All finishes can be blind embossed.
· For subsequent laser printing, we recommend a shallow embossing.

Hot foil stamping

· All finishes in the range can be foil stamped.
· Foil printers can recommend the best foil for the image and paper choice.

Die stamping

· Opale can be easily die stamped with superior results on smooth papers with very detailed imagery.
· Use water based inks for subsequent use with laser printers.

Thermography

UV thermography systems can be used for letterheads ensuring compatibility with office printers.

Film laminating

· Opale can be film laminated.
· Silvering may be evident depending on the print image.
· To reduce silvering increase laminating pressure and if possible apply excess adhesive if using wet glue lamination.

Die and laser cutting

· Opale papers and boards can be die cut.
· While laser cutting is easy some scorching will be apparent around the cut area.
· Laser cut papers are more prone to mis-feeds and jams within office printing technologies.

Folding and creasing

· Pre creasing is recommended to obtain best folds.
· Creases should be made parallel to the grain of the board.
· For best results, a creasing rule and matrix system should be used.
· Fold towards the bead for prominent folds.

Binding and adhesives

Standard adhesives and binding techniques can be used.

Office printing

· All items in the Opale range up to and including 160g papers are guaranteed for pre-printing and subsequent use on all desk-top mono and colour, laser and inkjet machines, as well as copiers and digital all-in-ones, subject to manufacturers’ guidance on grammage and use.
· Opale is also guaranteed for use on high output machines up to and including 160gsm.

Digital technologies

· Opale papers work on various dry toner digital presses.
· Compatibility to other dry toner digital presses should be tested.

Download Technical Guide

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