MI (2-methyl-4-isothiazolin-3-one) contained in detergents is not detectable in machine washed textiles

Table 1 MI-residue analysis of laundry fabrics after washing

Products measured		PES washed		Co/PES washed		Co washed
Products measured		1×	10×	1×	10×	1×	10×
w/o preservation (WLHUL1604500)	< 1 ppm	Not detectable	Not detectable	Not detectable	Not detectable	Not detectable	Not detectable
100 ppm MI (WLHUL1604600)	100 ppm	Not detectable	Not detectable	Not detectable	Not detectable	Not detectable	Not detectable
1000 ppm MI (WLHUL1604700)	1000 ppm	Not detectable	Not detectable	Not detectable	Not detectable	Not detectable	Not detectable

MI detection in PES, Co/PES and CO washed one time or ten times in different MI concentration (< 1, 100 and 1000 ppm). MI, 2-methyl-4-isothiazolin-3-one; Co, cotton fabric; PES, polyester fabric; co/PES, blended fabric (cotton with polyester), detection limit < 0.05 ppm

ISSN: 2045-7022