Effect of Cullet on the Color of White Body

Ifedayo Joshua Akinruli, Olajide Tunmilayo Sanya


In recent time, there is a growing interest in resource recovery from solid wastes which include using cullet (waste glasses) as a substitute in the formulation of ceramic bodies. All these studies hardly consider the effect of cullet on the color of the bodies so composed. This article presents a review on color and reports the investigation on the effect of cullet addition on the color of a white ceramic body. The extent to which cullet additions alter the color of white clay body was studied. Compositions of white-firing clay with various proportions of milled cullet were prepared. Ten test pieces were made for each group of test sample containing 0-100 parts CRT cullet powder. The colors and variation in the shades of hues was assessed by visual judgment, using a multiple comparisons test to determine the color differences. Results show that the addition of cullet significantly affects the whiteness of the clay body, though there are 3 groups within which there are no appreciable differences namely: 0-10parts cullet, 20part cullet and 30-50parts cullet; and that the higher the cullet addition the darker the color becomes.


Cullet, Ceramic bodies, Color, Composition.

Full Text:



Jiann-Yang H, Adele G, Allison H. Waste Coloured Glasses as Sintering Aid in Ceramic Tiles Production. Journal of Minerals and Materials Characterization and Engineering 2006; 5(2): 119-29.

Ajayi B. Harnessing Design concepts and Methods for BetterCeramic Products in Nigeria. ASHSKWU Journal od Ceramics 2001: 21-26.

Fadairo G. Colour as an element of Design Form. Journal of Industrial Design 2001: 24-31.

Saito MO. Comparative studies on color preference in Japan and other Asian Regions with special emphasis on the preference forwhite. Colour Research and Application 1996: 35-49.

Kim CS. Establishment of the color standard traceable system. Journal of the Korea Society of Color Studies 1999; 12(1): 1-8.

Kuehni RG. Color-tolerance data and the tentative CIE 1976 L*a*b* formula. Journal of the Optical Society of America 1976; 66(5): 497-500.

Satake I, Xin JH, Tianming T et al. A comparative study of the emotional assessment of automotive exteriorcolour in Asia. Progress in Organic Coating 2011: 528-40.

Berns RS. Billmeyer and Saltzman's principles of Colour Technology. New York: Wiley-Interscience, 2011.

Na N, Suk HJ. The emotional characteristics of white for applications of product color design. International Journal of Design 2014; 8(2): 61-70.

Feasibility Study for the Reduction of Colour within the Glass Furnase. The Waste and Resource Action Programme. Available from: http:// www.glass-ts.com/userfiles/files/2004%20-%20WRAP%20-%20Feasibility%20Study%20for%20the%20Reduction%20of%20Colour%20within%20the%20Glass%20Furnace.pdf. Accessed on: Apr 25, 2015.

Peter JC. Measurement Good Practice Guide No. 96 Surface Colour Measurements. Teddington, Middlesex, UK: National Physical Laboratory, 2006.

James AL, Thomas OM. Bricks and Tiles. Chicago, US. Encyclopedia Britannica. 2010.

Rado P. An introduction to the technology of pottery. Oxford: Pergamon Press, 1988.

Paul ZA. Colour. Upper Saddle Rever, NJ: Prentice-Hall Inc., 1989.

Wang ML. Effects of microstructure on the colour variation of tresparent glass ceramics. Glass Technology 1982; 23(3): 139-45.

Akinruli IJ. Formulation of Tesserea Body with the Cullet of Catode Ray Tube (CRT). MTech Thesis. Akure: Federal University of Technology, Akure (FUTA), 2014.

Taylor JR, Bull AC. Ceramics Glaze Technology. Oxford: Pergamon Press, 1986.

Matori KA. Crystallization of Waste Glasses to Wollastonite-based Architectural Glass Ceramics. A thesis Submitted for the Degree of Doctor of Philosophy. Sheffield: Department of Engneering Materias, University of Shefied, 2006.

Ryan W, Radford C. White wares Production, Testing, and Manufacturing Process. Oxford: Pergamon Press, 1987.

Ihekoroye AI, Ngoddy PO. Integrated Food Science and Technology. London: Macmillan Publishers Ltd, 1985.


  • There are currently no refbacks.