Abstract
The characteristics of the different Sur colours.
Abstract
For 310 bronze, 240 amber, 260 platinum and 110 anthracite colour types, the length of the depigmented tip of the fibre as a percentage of the total fibre length was up to 40% (mostly 10-20%), up to 60% (mostly 30-40%), up to 70% (mostly 20-40%) and 10% resp.