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Determination of light transmission through multiple sheets of cellulose triacetate using ordinary absorption spectroscopy
Author(s) -
Annis Patricia A,
Campbell Jacqueline H,
Knopp James A,
King Jr Allen D
Publication year - 2011
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2010.00272.x
Subject(s) - absorbance , cellulose triacetate , materials science , light scattering , spectroscopy , attenuation , absorption (acoustics) , optics , scattering , reflection (computer programming) , integrating sphere , absorption spectroscopy , refractive index , optoelectronics , composite material , physics , polymer , quantum mechanics , computer science , programming language
Ordinary optical absorption spectroscopy is used to assess the effects of reflection, scattering and optical absorption on light beams passing through sheets of cellulose triacetate fabric. The attenuation of light transmitted through multiple sheets of undyed fabric is analysed using a model that incorporates the concepts of reflection and turbidity. The attenuation of light by sheets of dyed fabric under conditions of significant light scattering is analysed using the model cited above. The results obtained under conditions of significant light scattering yield optical absorbance values for dye molecules incorporated in the fabric that correspond exactly with the absorbance values measured under conditions of total transparency, which is achieved using matching index of refraction spectroscopy.