Fig. 1.
Total number of fibers released from 100 cm2 of fabric per wash. Results are presented in box plots showing median, 25th, and 75th percentiles, max and min. Different types of fabrics are divided into separate figures; note that y-axis scale is identical in all figures, to emphasize differences. a Five polyester (PET) fabrics of differing structure. b Acrylic (A1) and nylon (N1). c Three different polyester (PET) fleece (FL) or microfleece (MF) fabrics, commercially produced by Polar Tech (Pt) or Tenson (T). Statistically significant differences are indicated by letters (p < 0.05). See Table 1 for more detailed descriptions of fabrics. n = 6