ACS 2018 Lunch and Learn

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Thank You For Your Interest

Thanks for your interest in the Sun Chemical technical sessions at the 2018 American Coating Show April 10th and 11th. Please choose the times and dates that work best for you. Seating is limited, so please register today.

Session 1

Introduction to Pearlescent Pigments in Coatings
Presented by Mike Venturini and Anthony Rohrer

The discussion will begin with the various types of pearlescent pigments and the reasons to specify an industrial vs. exterior grade. Basic optics, luster, multi-layer reflection, and interference color theory will then be reviewed. Particle size measurement techniques, interpretation of particle size distributions and cautions will be covered. Lastly, formulation guidelines dealing with hiding power, orientation and anti-settling will be presented.

The lecture is intended to provide a foundation for those new to Pearlescent pigments and to strengthen the knowledge of those already familiar with them. It is appropriate for technical people formulating with effect pigments and non-technical personnel who specify or purchase them.

Colorants and High Performance Pigments – Technology Review
Presented by Joe Rosati, Alex Gibson and Nilanjan Chakrabarti

This presentation is intended for those wishing to expand their technical understanding of high performance pigments. The foundational information will assist in value-based pigment selection, dispersion optimization, and problem solving color related challenges.

The classes of organic pigments will be reviewed and why certain pigments are classified as high performance. Organic pigment technology covering particle size distributions, particle shape, agglomeration vs aggregation, surface area, crystal morphology and solid solutions, surface energy, and surface charge will be presented. Advancements in Quinacridone Red 122, Perylene Red 179, Yellow 139 and Yellow 151 will be featured.

Session 2

Introduction to Classical Pigments for Industrial and Architectural Applications
Presented by Dr. Paul Merchak and Alex Gibson

Four groups of classical pigment types will be highlight that include Phthalocyanine Blue 15:1-15:6, Mono-Azo Yellow 74 & 65, Carbazole Violet 23 and Napthol Red 188.

The discussion will cover pigment chemistries, manufacturing, and finishing methods.  The various grades and pigment phases will be reviewed regarding their influence on opacity, dispersability, and color point.  End-use applications will also be reviewed with special attention paid to architectural applications.

Introduction to Color Science for Pigments
Presented by Dr. Paul Merchak, Director of Application Science, Sun Chemical

This engaging and thought provoking presentation will begin at wave theory of light and progress through the Munsell and CIELab colorimetry systems.  Spectral responses and how they are used for pigment selection and color matching will be discussed in detail for each color space.  Metamerism and the influence of light sources will be reviewed as well as human color cones and perception.  Optical illusions will be presented to highlight the impact of color fatigue and other visual phenomenon impacting daily work with color.

The presentation is intended for technical people involved in the evaluation, quality control and color matching of chromatic coatings.