Martínez -González, InésBou-Belda, EvaDíaz-García, PabloGisbert-Payá, JaimeBonet-Aracil, Marilés2022-12-012022-12-012022Martínez -González I., Bou-Belda E., Díaz-García P., Gisbert-Payá J., Bonet-Aracil M., Bath exhaustion on halocromic dyes. W: AUTEX 2022 : 21st World Textile Conference AUTEX 2022 - AUTEX Conference Proceedings., Lodz University of Technology Press, Lodz 2022, s. 604-608, ISBN 978-83-66741-75-1, doi: 10.34658/9788366741751.128.978-83-66741-75-1http://hdl.handle.net/11652/4564https://doi.org/10.34658/9788366741751.128Halocromic dyes change theis colour with pH. There is a problem focused on the determination of the concentration for halochromic dyes attached to a fibre. This article studies the influence of halochromism on the absorbance measurement protocol of polyamide dyeing wastewater with Rose Bengal. For this purpose, two dyes are prepared at neutral and acid pH, and their concentrations are to be determined by absorbances of exhaustion and washing wastewaters. In addition, in order to check their fastness, a washing test is carried out on dyed fabrics and on fabrics post treated with a fixer.enDla wszystkich w zakresie dozwolonego użytkuFair use conditionHalochromismAcid Red 94absorbancewavelengthdyepolyamideabsorbancjadługość falibarwnikpoliamidartykuł - konferencjaLicencja PŁLUT License10.34658/9788366741751.128