Technical Guides downloads
To obtain printed versions of these guides please contact us.
Fillers for Uncoated Wood-Free
Technical Guide - Fillers for Uncoated Wood-Free ( 
PDF,1.10MB )
Issue Date: 26/05/10
Uncoated wood-free paper is the largest segment in the printing and writing
category accounting for nearly 50% of printing and writing production globally.
Pigment Effects on Coating Strength
Technical Guide - Pigment Effects on Coating Strength ( PDF,1.04MB )
Issue Date: 04/05/10
Coating strength is a critical property of printing papers if they are to survive the demands of modern printing processes.
E-Type - Plates in the Extreme
Technical Guide - E-Type - Plates in the Extreme ( PDF, 878KB )
Issue Date: 13/04/10
Imerys has developed a platform of platy clays from Middle Georgia with large plate diameterand thin crystal dimension that can deliver unique value in a variety of
paper grades.
Pigments for Matt Coating
Technical Guide - Pigments for Matt Coating ( PDF, 1.13MB )
Issue Date: 16/11/09
Historically glossy grades have tended to dominate the coated paper market, but matt and silk/satin grades (up to ~40 TAPPI 75° gloss) now make up a significant
and growing percentage.
Formulation Effects in LWC Offset
Technical Guide - Formulation Effects in LWC Offset ( PDF, 1017KB )
Issue Date: 12/10/09
Producers of coated printing and writing papers in the mature markets of North America and Europe are facing very challenging times.
Calcined Clay in LWC
Technical Guide - Calcined Clay in LWC ( PDF,882KB )
Issue Date: 12/10/09
Generally, calcined clay has been used as an economical opacifier and its use in light weight coated paper is limited only by its effect on coating viscosity and rheology.
Coatings for Offset Lithography
Technical Guide - Coatings for Offset Lithography ( PDF, 1.04MB )
Issue Date: 08/10/09
Offset Lithography is one of the dominant printing processes today and is predicted to grow in the future.
Fillers for Newsprint
Technical Guide - Fillers for Newsprint ( PDF, 994KB )
Issue Date: 05/10/09
Worldwide newsprint production is about 42M tonnes/year and uses a relatively low level of fresh filler of between 2 and 12%.
Rotogravure Printing
Technical Guide - Rotogravure Printing ( PDF, 1.20MB )
Issue Date: 18/05/09
Rotogravure printing for publication and packaging is a significant market in Europe. It is widely used for long print runs for high circulation magazines and catalogues.
Capim™ Kaolin Applications
Technical Guide - Capim™ Kaolin Applications ( PDF, 1.01MB )
Issue Date: 17/03/09
Imerys Rio Capim Caulim (IRCC) kaolins have been produced since the mid 1990’s
and have become firmly established as the high quality products of choice for the global paper market.
Topcoat Formulation Development
Technical Guide - Topcoat Formulation( PDF,1.49MB )
Issue Date: 17/02/09
Multi-layer coating is common practice in glossy coated paper and board applications globally. In these applications the role of the topcoat is principally to provide a micro-smooth surface suitable for paper and print gloss development.
Rheology
Technical Guide - Rheology ( PDF, 2.67MB )
Issue Date: 06/01/09
The flow properties of mineral slurries and coating colours are critical in both handling (pumping, screening and storage) and during application of the coating onto the basepaper.
Advanced Rheology
Technical Guide - Advanced Rheology ( PDF, 447KB )
Issue Date: 06/01/09
Viscoelastic Effects in Coating - In general, pigments have relatively minor effects on the viscoelastic character of coating colours.
Effect of Fillers on LWC
Technical Guide - Effect of Fillers on LWC ( PDF, 1.74MB )
Issue Date: 10/12/08
In traditional LWC production, the majority of the mineral filler in the base paper comes from coated broke.
Print Mottle
Technical Guide - Print Mottle ( PDF, 3.20MB )
Issue Date: 05/03/07
The perception of paper and print quality is often linked to subtle phenomena such
as the visual evenness of the paper or print surface.
Metered Size Press Coating
Technical Guide - Metered Size Press Coating ( PDF, 714KB )
Issue Date: 16/04/07
The metered size press (MSP) coater has become a key option for producing lightweight coated (LWC) grades and the precoat in double and triple coated grades.
Flexographic Printing
Technical Guide - Flexographic Printing ( PDF, 3.56MB )
Issue Date: 16/04/07
Recent improvements in the flexographic printing process have raised the print quality to the same level as offset lithography and rotogravure printing.
Carboflex Coating Concepts
Technical Guide - Carboflex Coating Concepts ( PDF, 1.76MB )
Issue Date: 14/04/08
Light scatter is the papermaker’s most flexible tool for developing paper optics which in part has lead to the development and widespread use of engineered or narrow particle size distribution carbonates.
Film Press Pigmented Sizing
Technical Guide - Film Press Pigmented Sizing ( PDF, 1.40MB )
Issue Date: 29/04/08
It is becoming increasingly common to include white pigments in sizing solutions, known as pigmented sizing.
New Concepts for Barrier Coatings
Technical Guide - New Concepts for Barrier Coatings ( PDF, 2.08MB )
Issue Date: 15/05/08
The increased focus on recycling and sustainable packaging is driving the trend for water-based barrier coatings to replace fluorocarbon and extruded polymer barrier coatings.
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