Dr. Renzo Shamey

Professor of Color Science and Technology, Director of Polymer and Color Chemistry Program, TECS, Honorary Professor, Tianjin Polytechnic University, China

Email : rshamey@ncsu.edu
Phone : 919-515-6546
Address : College of Textiles - Room 3145

Dr. Renzo Shamey post image


After obtaining a Bachelor of Engineering in a 5 year program offering a mixture of engineering and chemistry courses in 1989, Prof. Shamey worked in textile mills (dyeing and finishing industry) for three years in various capacities from process engineer to section manager.

Prof. Shamey obtained a Master of Science degree in Dyeing and Finishing (with Distinction) jointly from the “Colour Chemistry Department” and “School of Textile Industries” of Leeds University in 1993 working on a colour science project under the direction of Dr. James. H. Nobbs at the Colour Chemistry Dept. of Leeds University.

He continued to work with Dr. Nobbs for four years during his PhD program between 1993 and 1997. His work was focused on modelling and real time control of dye concentration in a dyebath. After completing his PhD he worked as a post doctoral research associate at the Colour Chemistry Department of Leeds University on an industrial project sponsored by Unilever between 1997 and 1998.

Prof. Shamey joined Heriot-Watt University in Galashiels (Scotland) in 1998, as Lecturer (Assistant Professor) in Dyeing, Printing and Finishing where he established the Automation and Novel Coloration Research Group. He was nominated for a University wide Excellence in Teaching Award in 2002 and was specially commended.

In 2003, Prof. Shamey joined the TECS Dept. at NCSU and has served as Polymer and Color Chemistry (PCC) program director since 2009.

Prof. Shamey is a Fellow of the Society of Dyers and Colourists and a Chartered Colourist (CCol).

Prof. Shamey was also elected the Academic Secretary of United Kingdom National Postgraduate Committee (NPC) as well as the President of the Postgraduate Representative Council (PGRC) of Leeds University between 1995-1998. He was a state champion in free style Olympic wrestling for several years. He enjoys playing badminton and basketball in his spare time and traveling, learning new languages, and classical guitar.

Research Interests

  1. Colour Science and Technology

    Seven PhD and two Masters projects have been completed in these areas. Three PhD projects are currently underway on perception of fluorescent whites, and characterization of color of complex patterns using digital cameras. Other projects involve assessment of color difference formulae and development of visual datasets.

  2. Computer Applications in Textile Wet Processing

    Six PhD projects have been completed in this field. The current work focuses on the development of expert systems to troubleshoot dyeing/printing problems. Other areas involve the examination of the effect of various parameters in real time on individual dyes in a dye admixture.

  3. Dye Application and Textile Chemistry
    • Dyeing of Polyolefins (Polypropylene, PE)
    • The Effect of Colorants on Ageing and Degradation of Fibers
    • Chemical Modification of Cellulose

    Five PhD projects have been completed in these fields. Works of interest include exploring novel techniques to dye polyolefins, as well as the study of photodegradation of fibers as a result of inclusion of dyes and compounds such as nano TiO2 in fiber.

Academic Degrees

  • Post-doctoral Research Associate, 1998, Leeds University, Unilever, UK.
  • PhD, 1997, Leeds University, UK.
    Thesis: The Computer Control of Continuous Addition Dyeing of Cotton With Reactive Dyes
  • MSc, 1993, Leeds University
    Dissertation: Computer Match Prediction For Screen Printed Semi-Opaque Panels
  • BSc (Eng.) 1989, Textile Fiber, Chemistry and Engineering, IUT


Undergraduate Courses Taught (in some cases developed)

  • PCC 101, Introduction to Polymer and Color Chemistry
  • PCC 104 Introduction to Polymer and Color Chemistry, Lab
  • PCC 301, Technology of Dyeing and Finishing (PCC majors)
  • PCC 304 Technology of Dyeing and Finishing , Lab
  • PCC 302, Technology of Textile Wet Processing
  • PCC 302 Technology of Textile Wet Processing, Lab
  • PCC 350 Introduction to Color Science and Application
  • PCC 354 Introduction to Color Science and Application, Lab
  • PCC 490, Undergraduate Research Coordinator
  • PCC492 (PCC450), Advanced Colorimetry and Color Appearance Models

Graduate Courses

  • TC 705 Theory of Coloration
  • TC 706 Color Science
  • TC 707 Color Science Laboratory

Recent Publications

  1. Shamey, R., Sawatwarakul, W., & Kuehni, R. G. (2015). Cognitive comparison of unique and intermediate hues. Color Research and Application, 40(3), 264-269.
  2. Yi, E. J., & Shamey, R. (2015). Cross-cultural comparison of color terms and preference of persimmon-dyed fabric, Galchon. Color Research and Application, 40(6), 592-604.
  3. Shamey, R., Sawatwarakul, W., & Fu, S. (2015). Does hue affect the perception of grayness?. Color Research and Application, 40(4), 374-382.
  4. Shamey, R., Zubair, M., & Cheema, H. (2015). Effect of field view size and lighting on unique-hue selection using Natural Color System object colors. Vision Research, 113, 22-32.
  5. Shamey, R., Lin, J., Sawatwarakul, W., & Cao, R. B. (2014). Evaluation of performance of various color-difference formulae using an experimental black dataset. Color Research and Application, 39(6), 589-598.

NC State Library Scholarly Publications List

Current Students

  1. Muhammad Zubair
    2017, PhD, Chair, Shamey
    Development of a diagnostic expert system for the coloration of blend fibers
  2. Sonali Mandal
    2017, PhD, Chairs: Hauser-Shamey
    Colorimetric characteristics of cationized cotton dyed with anionic colorants
  3. Sajeesh Kulappurath
    2017, PhD, Chair, Shamey
    Assessment of Texture
  4. Nian Xiong
    2019, PhD,Chair: Shamey
    Quality Control of Multicolored Objects Using Imaging Systems
  5. Daniel Hines
    2017, MS, Chair, Shamey
    Assessing the role of glare in colorimetric use of cameras
  6. Jiajun Liu
    2019, PhD, Chairs, Chapman- Shamey
    Durability of Inkjet Printed Material
  7. Wu Meiqin
    2019, PhD, Co-Chairs, Shamey- Wang
    The Use of Multispectral Imaging Systems for Quality Control of Colored Products
  8. Heekwang Koo
    2018, MS, Chair, Shamey
    Dermatological Application of Colorants

Postdocs, and Visiting Scholars

  1. Dr. Yu Lin, Postdoctoral Associate, 2014- Present
  2. Mr. Zhongjian Li, Visiting Scholar, 2016- Present
  3. Mr. Chen Zhe, Visiting Scholar, 2016- Present
  4. Dr. Lin Luo, Postdoctoral Assistant, 2015-2016
  5. Dr. Juan Lin, Postdoctoral Assistant, 2013-2014
  6. Ms. Shaungyan Wu, Visiting Scholar, Jiangnan University, China, 2015
  7. Ms. Jiajun Liu, Visiting Scholar, Wuhan Textile University, China, 2015
  8. Dr. Eunjou Yi, Visiting Scholar, Jeju National University, Korea, 2012-2013.
  9. Dr. Yuzheng Lu, Visiting Scholar, Jiangnan University, China, 2012-2013.
  10. Dr. Khaled El-Tahlawy, Research Associate, 2006-2008
  11. Dr. Maqbool Hussain, Visiting Scholar, Pakistan, 2008- 2010
  12. Ms. Merce Alsina Costabella, Visiting Scholar, Spain, Jan 2008- 2008
  13. Dr. Senthilkmar Muthusamy, Visiting Scholar, India, 2006- 2007
  14. Mr. Mahmud Elgammal, Visiting Scholar, National Research Center, Egypt, 2008

Undergraduate Research Projects

  1. Anne MacLean
    2014, Threshold determination of “simultaneous contrast” and “spreading”
  2. Haley Barkely
    2013, Development of a perceptually geometric gray scale on polyester woven substrate
  3. Chris Ohnstad
    2013, Effect of certain chemical and mechanical treatments on colorimetric attributes of polyester substrate dyed with disperse dyes
  4. Sarah Shepherd
    2011, Brunescence and Its Influence on Assessment of Small Color Differences.
  5. Troy Tomassino
    2011, Development of a Sample Set around a CIE High Chroma Blue Color Center
  6. Sarah Jane Simpson
    2011, Development of a ‘gray’ hue circle.
  7. Adam Stegall
    2010, Development of a fabric based gray scale for assessment of color change
  8. Michael Sedito
    2007, Determination of unique hue based on Munsell chips
  9. Hal Walrod
    2007, Establishing a translucency index for textiles using translucent compression garments
  10. Kevin Bullock
    2006, Determining the Effect of Relative Humidity, Fabric Structure, and Finishing on Colorimetric Properties of Direct Dyed Cotton Fabrics
  11. Karmen Cressman Miller
    2005, Assessment of large color differences using DigiEye and Datacolor spectrophotometers

Former Graduate Students 

  1. Renbo Cao
    Research Scientist, Axalta, USA, 2015, Chair: Shamey
    Development of an instrumental technique for quality control of complex colored patterns.
  2. Weethima Sawatwarakul
    Johnston Printing, Thailand, 2014, Chair: Shamey
    Development of a diagnostic expert system for coloration of protein fibers.
  3. Juan Lin
    Reiko, USA, 2013, PhD, Chair: Shamey
    Factors Affecting the Perception and Measurement of Optically Brightened White Textiles.
  4. Berdan Kalav
    Lecturer, Istanbul Technical University, 2012, PhD, Chairs: Shamey- Dayioglu
    Development of a diagnostic expert system for inkjet printing of cotton substrates.
  5. Gang Fang
    Konika Minolta, USA, 2012, PhD, Co-Chairs: Shamey-Hinks
    Development of Instrumental Techniques for Color Assessment of Camouflage Patterns.
  6. J. Reid Clonts
    2011, PhD, Co-Chairs: Shamey-Hinks
    Perception of Blackness and the Formulation of a Blackness Index
  7. Mehmet Ozturk
    2011, PhD at Istanbul Technical University, Co-Chairs: Shamey-Dayioglu
    Optimization & Study of Exhaustion Profiles in the Dyeing of Cotton.
  8. Changhai Xu
    Professor, Jiangnan University, Wuxi, China, 2009, PhD, Co-Chairs: Hinks-Shamey
    The Chemistry and Perception of Fluorescent White Textile Materials
  9. Woo Sub Shim
    Research scientist, Korea, 2009, PhD, Co-Chairs: Shamey-Joines
    Development of a Diagnostic Expert System for the Dyeing of PolyesterSubstrates
  10. Lina Maria Cardenas
    Assistant Professor, Chile, 2009, PhD, Co-Chairs: Shamey-Hinks,
    Evaluation of Variability in Visual Assessment of Small Color Differences
  11. Kamran Iqbal
    Textile Research & Innovation Center, Pakistan, 2008, MS, Chair: Shamey
    Development of a visual dataset around a CIE high chroma blue color center.
  12. Seung Geol Lee
    Assistant Professor, Korea, 2007, MS, Co-Chairs: Shamey-Jasper
    Assessment of Metrics in Color Spaces
  13. Reduwan Bilal Shah
    Postdoctoral Research Fellow, UK, 2007, PhD, Co-Chairs: Christie-Shamey
    The Molecular Design, Synthesis and Application of Photochromic Dyes on Protein Substrates
  14. Mukesh Kumar Sinha
    Assistant Director, defense research labs, India, 2006, PhD, Co-Chairs: Shamey-Christie
    An Investigation of the Photodegradation of a Nylon Support Net used in Exhibition of Historic Textiles
  15. Mr. Mohammad K. Basher
    Sales manager, Canada, 2005, MPhil, Co-Chairs: Wardman-Shamey
    An Investigation on the Characteristics and Role of Surface Deposits Formed on the Wool Fiber During the Dyeing Process with Metal-Complex Dyes and Minimising Their Formation.
  16. Syed Iqbal Ahmed
    Process Engineer, UK, 2005, PhD, Co-Chairs: Shamey-Mather
    Coloration of Polypropylene: Prospects and Challenges
  17. Xiaoming Zhao
    Professor, Tianjin Polytechnic University, China, 2004, PhD, Co-chairs: Shamey-Wardman
    Modelling of the Mass Transfer and Fluid Flow in Package Dyeing Machines
  18. Tanveer Hussain
    Dean of Engineering, Pakistan, 2004, PhD, Co-Chairs: Shamey-Wardman
    A Knowledge Based Expert System for the Dyeing of Cotton.

 Organizations (past and present)

  • Editor in Chief, Journal of Textile Science and Engineering
  • Fellow, Society of Dyers and Colourists, UK
  • President Elect, Inter-Society Color Council ISCC
  • Senior Member, American Association of Textile Chemists & Colorists
  • Optical Society of America, Member
  • Society for Imaging Science and Technology, Member
  • Fiber Society, Member
  • Colour Group, UK; Member
  • The Society for Modeling and Simulation International
  • The International Institute of Informatics and Systemics

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