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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F25%3A00013972" target="_blank" >RIV/46747885:24410/25:00013972 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.2478/ftee-2025-0009" target="_blank" >https://doi.org/10.2478/ftee-2025-0009</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2478/ftee-2025-0009" target="_blank" >10.2478/ftee-2025-0009</a>

Result language

angličtina

Original language name

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

Original language description

When studying photochromic materials, photostability and endurance are crucial considerations. These characteristics can benefit UV sensors, optical rewritable storage devices, and anti-counterfeiting techniques, as well as the ophthalmic industry. When light irradiates a photochromic system, chromophoric dye molecules, the chromophoric part of the dye, and fatigue resistance refer to how well they hold up against photodegradation, photobleaching, and photooxidation. In our experiment, we examined the photo-fading tendency of a photochromic dye with photochromic textiles. We used the screen-printing technique to create photochromic prints with different dye concentrations. We then continuously exposed the prints to UV light using a spectrophotometer. UV light caused the photochromic dye molecules in these prints to fade and photodegrade. We used three distinct ways to assess UV irradiation over many cycles. We proposed three hypotheses: When photodegraded using various techniques, the UV dosage exhibits additive behaviour during recorded UV irradiance cycles. In addition, a visible light source is more likely to cause photodegradation entirely or partially when the reversion process repeats over several cycles. Next, the prints exhibit photofading when subjected to one UV cycle and multiple irradiance cycles within a single measurement block and numerous irradiance cycles within a single measurement period. The plateau of each measured photochromic cycle adheres to the one-phase dissociation feature for photo-fading behaviour. In contrast, the colour span values for the photochromic system, measured during the development phase of each UV irradiation cycle, fit the one-phase association model.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fibers and Textiles in Eastern Europe>

ISSN

1230-3666

e-ISSN

—

Volume of the periodical

33

Issue of the periodical within the volume

1

Country of publishing house

PL - POLAND

Number of pages

9

Pages from-to

87-95

UT code for WoS article

001599718000001

EID of the result in the Scopus database

2-s2.0-105021134341