TY  - JOUR
TI  - Quantification and evaluation of chemical footprint of woollen textiles
AU  - JI, XIANG
AU  - QIAN, WEIRAN
AU  - TIAN, ZEJUN
AU  - LI, YI
AU  - WANG, LAILI
T2  - Industria Textila
AB  - The chemical pollutants discharged in the production processes of textile products cause severe impact on the
environment. The chemical footprint (ChF) methodology provides a new way to quantify the toxicity impacts caused by
chemical pollutants. ChF does well in identifying priority chemical pollutants and helping enterprises to select greener
chemicals to reduce the environment impacts. In this study, the ChF of woollen yarn were assessed with the data that
collected from the production processes. The results showed that the ChF of dyeing process (4.10E+06 l) accounted for
the largest proportion, because a large number of auxiliaries were used in the dyeing process to prevent uneven dyeing
and colour difference, followed by scouring (7.79E+05 l) and finishing (8.11E+03 l). Among all the discharged chemical
pollutants, polyoxyethylene nonyl phenyl ether (1.37E+06 l) caused the most ecotoxicity severe impact on the
environment due to its high bioaccumulation and high toxicity to ecosystem, followed by sulfuric acid (1.03E+06 l).
Sodium chloride and hydrogen peroxide were the two substances that caused the least environmental load. The overall
uncertainty caused by toxicity prediction data accounting for 20.2% of the total ChF, and the uncertainty of the scouring
process was the most. The results are referable for wool textiles producers to enhance the textile chemicals
management.
DA  - 2021/02/28/
PY  - 2021
DO  - 10.35530/IT.072.01.1773
VL  - 72
IS  - 1
SP  - 68
EP  - 73
LA  - English
SN  - 1222-5347
UR  - http://www.revistaindustriatextila.ro/images/2021/1/09%20XIANG%20JI%20Industria%20Textila%201_2021.pdf
ER  -