Influence of Residual Ca sup>2+ sup> and Mg sup>2+ sup> after Pretreament for Yarn Dyeing

Updated: 2010/12/7 17:27:00

The article analyzed the source of high concentration of residual Ca2+ and Mg2+ after high temperature pre-processing throughout analyzing the water hardness before and after pretreament. It shows that Ca2+ and Mg2+ have an great affect on the color shade, especially for light gray, blue and violet colors when the concentration is above 4.5 mmol/L. It is necessary to remove them by adding additional rinsing water.

Authority in Charge: China National Textile and Apparel Council (CNTAC)

Sponsor :China Textile Information Center (CTIC)

ISSN 1003-3025 CN11-1714/TS