FDM 10033 Lecture Notes - Lecture 14: Color Theory, Dry Cleaning, Behavioural Sciences
3 Aug 2016
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Document Summary
Physics of light- electromagnetic radiation of wavelengths, rainbows. Biology of the eye- physical characteristics of individual. Level- color that looks the same throughout the product. Metamerism- two colors match under one light source but not under another. Colorfastness- dyes and prints font shift in hue or fade under certain conditions or move onto other fabrics during storage or care: sunlight, perspiration, chlorine. Pigments- often used with printed fabrics: can be used on any quality products, surface sensitive to abrasion, wash down- color loss over time after laundering or dry cleaning, ink- pigment combined with other ingredients in a paste. Dyes- can be in solution or paste: paste used for printing, penetrates more than pigments. Fluorescent dye- make whites appear whiter and mask yellowing fibers. Skyed- expose to air: indigo or sulfur, oxygen needed to develop and fix color, indigo may be dyed up to 16 times. Resist- block or prevent color absorption during yarn and fabric dying.
