CHEMISTRY AND TECHNOLOGIS OF DYES

Degree course: 
Corso di First cycle degree in Chemical Sciences and Technologies
Academic year when starting the degree: 
2013/2014
Year: 
2
Academic year in which the course will be held: 
2014/2015
Course type: 
Supplementary compulsory subjects
Credits: 
6
Period: 
Second semester
Standard lectures hours: 
48
Detail of lecture’s hours: 
Lesson (48 hours)
Requirements: 

Prerequisites:

Fundamentals of mathematical analysis and physics. Fundamentals of general, inorganic and organic chemistry.

Assessment: 
Voto Finale

Teaching objectives and expected learning outcomes:

Knowledge of the physical, chemical, physiological and psychological fundamentals of human chromatic perception. Measurement of colour. Chemistry of dyes and pigments. Fundamentals of technological application of dyes and pigments.

Course program:

Ray optics: reflection and refraction. Wave aspects of light: electromagnetic waves, interference, diffraction, scattering. Absorption and emission of photons by matter. Light sources. Radiometry. The eye and vision: Structure of the eye. Retina: structure and functioning. Day and night vision: rods and cones. Transmission of the signals to the brain. Colour vision and colour blindness. Photometry. Colorimetry: Tristimulus values. Illuminants. Colour spaces. CIE standard colorimetric system. CIE diagram. Metamerism. Measurement and calculation of colorimetric values. Uniform colour spaces. Empirical colour spaces. Instruments for colour measurement. Technological applications. Dyes: Chemical and coloristic classifications of dyes. Colour Index. Polyene and polymethine dyes. Di- and triarylmethine dyes and aza analogues. Aza[18]annulenes. Azo dyes. Carbonyl dyes. Sulphur dyes. Metal complex dyes. Direct dyes. Acid and basic dyes. Vat dyes. Disperse dyes. Reactive dyes. Technological applications of dyes: textiles, paper, other materials. Dyeing and printing. Pigments:

Organic and inorganic pigments. Colouristic properties. Characterization of pigments. White pigments. Black pigments. Colour pigments. Interference pigments. Luminescent pigments. Specialty pigments. Technological applications of pigments: paints, etc. Colorants in art and for imaging..

Type of didactic activities: Front lessons

Texts and teaching materials: Didactic materials will be given to the students

Verification of learning skills: Oral examination

Professors

MARCANDALLI BRUNO