UK Clays

Imerys UK Clays are premium hyper-platy clays mined and processed in Cornwall in southwest England. Imerys UK clays present a large plate diameter and thin crystal dimension that can deliver unique value to a variety of paper and board grades.

Imerys UK kaolin filler options are suitable for a wide range of papers, including newsprint, super calendered, uncoated mechanical papers and SC magazine papers.

Our general purpose Intrafill™ grades confer a combination of brightness and particle size providing good optical and print properties and good retention characteristics. Benefits include reduced sheet porosity and improved printability whilst maintaining satisfactory optical performance. 

Intramax™ filler kaolins are designed to achieve maximum optical performance in SC magazine papers produced under acid pH conditions.

In LWC gravure papers, ultra-platy kaolins such as our Suprasmooth™ grades provide improved coating coverage delivering better smoothness and gloss and allowing papermakers to cover rougher base stock with less calendering.  In the pre-coat, papermakers can utilize large kaolin plates combined with blocky pigments to create a structured coating that improves optical and physical coverage.

Suprasmooth™ helps optimize costs. By producing a rougher, bulkier base paper, paper and board producers can increase machine speeds and improve fiber yield. 

Using Suprasmooth™ kaolins in coating formulas also reduces the need for expensive opacifiers and binders.

• Suprasmooth™ - Coating grades
• Intramax™ - Filler grades
• Intrafill™ - Filler grades