Anti Set Off Powder for Offset Printing

Triwill Group supplies specialist anti set-off powder for commercial offset printing, designed to prevent ink setoff between freshly printed sheets as they are delivered to the pile. Anti set-off spray powder is applied by the press delivery spray system to create a microscopic separation between printed sheets, preventing wet ink from transferring from the face of one sheet to the reverse of the next.

Selecting the correct anti set-off powder grade for your substrate and ink is essential for maintaining print quality and preventing spoilage. Triwill Group’s technical team can advise on the appropriate powder specification for your press, ink system, and paper grade.

Key Features:

• Prevents Ink Setoff: Creates microscopic separation between delivered sheets to prevent wet ink transfer and setoff.
• Multiple Grade Options: Available in various particle sizes to suit different substrates and printing applications.
• Press Spray Compatible: Formulated for use with commercial offset press delivery spray powder systems.
• Print Quality Protection: Protects freshly printed sheets from setoff damage during delivery and pile formation.
• Offset Press Specialist: Specifically developed for commercial sheet-fed and web offset printing applications.

Triwill Group’s anti set-off powder is the trusted pressroom auxiliary product for UK commercial offset printers requiring reliable setoff prevention across a range of substrates and print applications.

Frequently Asked Questions

What is anti set off powder used for in printing?

Anti set-off powder is used in commercial offset printing to prevent ink setoff between freshly printed sheets in the delivery pile. It is applied by the press spray system to create a microscopic gap between sheets, stopping wet ink from transferring from the printed face of one sheet to the back of the next.

How to choose the correct anti set off powder for different paper types?

The correct anti set-off powder grade depends on the substrate, ink type, and print application. Finer powder grades are used for higher quality print work, while coarser grades provide more reliable setoff prevention on heavier or more absorbent stocks. Triwill Group’s technical team can advise on the appropriate powder specification for your press and application.

Comparison of different anti set off powder grades?

Anti set-off powders are available in a range of particle sizes from fine to coarse. Finer powders are preferred for high-quality commercial print work where powder visibility must be minimised. Coarser grades provide more robust setoff prevention for packaging and heavier commercial applications. Contact Triwill Group for guidance on the most appropriate grade for your application.

How to clean anti set off powder from printing presses?

Anti set-off powder accumulates in press delivery systems and throughout the pressroom over time. Regular cleaning of press delivery components, air systems, and pressroom surfaces is required. Contact Triwill Group for guidance on press maintenance related to anti set-off powder use.

What are the alternatives to traditional anti set off powder?

Alternatives to traditional anti set-off powder include UV offset printing which eliminates setoff as inks cure instantly, and aqueous coating of printed sheets. For conventional offset printing where spray powder is preferred, Triwill Group supplies the appropriate anti set-off powder grades for your application.

Can I order anti set off powder in bulk from Triwill Group?

Yes, Triwill Group offers bulk ordering of our anti set-off powder and complete pressroom auxiliary range. Competitive pricing and fast UK-wide delivery are available for commercial offset printing operations.