Welcome to Imerys Performance Minerals

Printing and writing papers

Printing & writing paper Improving machine runnability, converting and quality of publication paper grades

Imerys talcs make excellent multifunctional fillers and coating pigments for printing and writing papers, improving the quality of coated and calendared papers for the rotogravure and matte offset printing process. Imerys bentonites are excellent solutions for wet-end processes.

As wet-end mineral additives

Imerys talcs and bentonites:

  • Are excellent, environment friendly pitch and stickies control agents, reducing broke, cleaning and machine downtime and boosting productivity at the mill 
  • Improve fines and filler retention
  • Improve white-water clarification
  • Reduce white pitch risk when using coated broke 

As functional fillers

Imerys talcs:

  • Allow high filler loading
  • Reduce white pitch risk when using coated broke 
  • Are cost-effective replacements for fresh fiber
  • Increase drainage
  • Improve coating  hold out
  • Improve die cutting

As coating pigments

In rotogravure

Imerys talcs:

  • Reduce core bursts and crepe wrinkles, improving printing press runnability 
  • Improve smoothness, lowering surface friction and enabling jumbo roll production
  • Strengthen resistance to fold breaks during reel changes reducing broke levels
  • Maximize ink transfer, bringing better image quality in the halftone area and reducing missing dots
  • Allow increased usage of high brightness pigments - including calcium carbonate - in coating formulations in mills operating under alkaline conditions 

The excellent runnability of our rotogravure coating talcs match the high production speeds used at LWC plants. 

We particularly recommend our Heliocote® range for rotogravure applications.

In matte offset printing 

Imerys talcs:

  • Solve inkscuff problems in papers with a high calcium carbonate content
  • Provide a silky feel to matt paper, improving readability and touch
  • Provide a matt effect  and higher snapshot (lower sheet gloss, higher print gloss) 

By adapting particle distribution size, we can tailor our talcs to provide the right level of matt or semi- finish to meet your paper mills individual requirements.

In inkjet printing 

Imerys talcs:

  • Reduce print through and unevenness
  • Improve print image and optical density

We particularly recommend our Jetfine® 1 grade for this application.

We offer a full range technical and process support services to help you match the right mineral grade to your application requirement.

Please contact us, we will be only too happy to help

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Paper & Board