Abstract
As it follows from a title of the article, it is dedicated to research of spinning capacity of linen fibres, which were cottonizing by electric discharges. During research the installations of estimation yardsticks of optimum linen opening-up to cottonizing process were made. The main asset of cottonizing is the electric discharge. Such yardsticks as length, angle diameter, burst load of a fiber are discussed also. Matching pa- rameters of linen fibres after processing with parameters of fibres of cotton is made.