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Photochromic Print's Distinct Photo-Fading Characteristics under Continuous UV Irradiation Measurement Modes Cover

Photochromic Print's Distinct Photo-Fading Characteristics under Continuous UV Irradiation Measurement Modes

Fibres & Textiles in Eastern Europe
Volume 33 (2025): Issue 1 (May 2025)
By: Utkarshsinh B Solanki,  Martina Viková and  Michal Vik  
Open Access
|Oct 2025
Figures & tables

Figures & Tables

Fig. 1.

Unimolecular photochromic systems and a class of diabatic photoreactions

Fig. 2.

General kinetic profile curve of a photochromic cycle

Fig. 3.

Schematic representation of photofatigue experiment under continual irradiance: a) Mode A: 6 cycles of 5 blocks, b) Mode B: 30 cycles of 1 block, and c) Mode C: 1 UV cycle without decay phase of 1 block

Fig. 4.

Absorbance curves of photochromic prints and their characteristics of photochromic cycle measurements under continuous UV irradiance

Fig. 5.

Photo-fading behaviour vs. dose of photochromic dye with 100g.kg−1: a) Mode A: 6 cycles of 5 blocks, b) Mode B: 30 cycles of 1 block, c) Mode C: 1 UV cycle without decay phase of 1 block

Fig. 6.

Photo-fading behaviour vs. dose of photochromic dye with 200g.kg−1: a) Mode A: 6 cycles of 5 blocks, b) Mode A: 6 cycles of 5 blocks, c) Mode B: 30 cycles of 1 block, d) Mode C: 1 UV cycle without decay phase of 1 block

Best-fit values for 100 g_kg−1 and 200 g_kg−1

Mode B: 30 cycles of 1 blockMode C: 1 UV cycle without decay phase of 1 block
100g.kg−1200g.kg−1 100g.kg−1200g.kg−1
K/S∞5.88010.50K/S∞6.00712.87
K/S04.8237.615K/S04.99010.97
k0.35640.3525k0.14980.3425
H1.9451.967H4.6272.024
R squared0.99200.9856R squared0.99490.9309
RMSE0.02080.0772RMSE0.01780.1152
AICc−223.7−145.1AICc−232.8−121.1
ΔK/S16.30 %26.01 %ΔK/S 9.48 %
DOI: https://doi.org/10.2478/ftee-2025-0009 | Journal eISSN: 2300-7354 | Journal ISSN: 1230-3666
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Language: English
Page range: 87 - 95
Published on: Oct 25, 2025
Published by: Łukasiewicz Research Network, Institute of Biopolymers and Chemical Fibres
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open
Keywords:
photochromic dye,
UV irradiance cycles,
colour span values,
photo-fading,
photochromic prints
Related subjects:
Business and economics,
Business management,
Business informatics,
Process management,
Industrial chemistry,
Cellulose, paper and textiles,
Polymer science and technology,
Materials sciences,
Biomaterials and natural materials

© 2025 Utkarshsinh B Solanki, Martina Viková, Michal Vik, published by Łukasiewicz Research Network, Institute of Biopolymers and Chemical Fibres
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 33 (2025): Issue 1 (May 2025)
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