Study on color-changing response of photochromic polyester fabric to ultraviolet lamp irradiance

CHENG Peiwen; CHE Mengyao; LIU Qian

doi:10.12299/jsues.24-0188

Volume 40 Issue 1

Mar. 2026

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CHENG Peiwen, CHE Mengyao, LIU Qian. Study on color-changing response of photochromic polyester fabric to ultraviolet lamp irradiance[J]. Journal of Shanghai University of Engineering Science, 2026, 40(1): 55-61. doi: 10.12299/jsues.24-0188

Citation:

CHENG Peiwen, CHE Mengyao, LIU Qian. Study on color-changing response of photochromic polyester fabric to ultraviolet lamp irradiance[J]. Journal of Shanghai University of Engineering Science, 2026, 40(1): 55-61. doi: 10.12299/jsues.24-0188

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Study on color-changing response of photochromic polyester fabric to ultraviolet lamp irradiance

doi: 10.12299/jsues.24-0188

School of Textiles and Fashion, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2024-06-16
Available Online: 2026-05-27
Publish Date: 2026-03-01

Abstract

Abstract

Photochromic polyester fabric was prepared using red color-changing microcapsules via high temperature and high pressure dyeing. The mass fraction of dispersant NNO and the dosage of microcapsules were optimized for the best color-changing effect. Orthogonal experiments were conducted to further investigate the factors affecting the color changing performance of the photochromic fabric, and the cyclic color-changing properties and color fastness to rubbing were evaluated. The results show that the fabric exhibits the best photochromic properties when the mass fraction of photochromic microcapsules is 7% and the dispersant mass concentration is 1.0 g/L. ultraviolet (UV) irradiance is identified as the most important factor affecting the color-changing effect, exerting the greatest influence on the color difference (ΔE) of the fabric. In addition, the fabric demonstrates excellent color fastness to rubbing, with dry and wet rubbing fastness both rated at grade 4-5. After 20 cycles of UV–visible light irradiation, the loss in color difference is only 11.54%.
- microcapsules,
- photochromic,
- smart textiles,
- dye,
- color-changing property

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References(17)

References

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