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Table 1 MI-residue analysis of laundry fabrics after washing

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

Products measured PES washed Co/PES washed Co washed
10× 10× 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
  1. 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