Regarding the question of obtaining natural textile fibers from pine needles

Abstract

Pine needles can be a source of environmentally friendly natural textile fibers. The technology of producing natural textile fiber from pine needles has significant economic and environmental potential. The following stages of pine needle production were identified in the study: raw material collection and separation of clean pine needles; extraction of natural textile fibers from pine needles, technological processes of fiber processing for the production of finished products. A pneumatic-thermal method was proposed for separating clean pine needles and a schematic diagram of the installation for its implementation was developed. Using the method of multifactorial experiment, a technological regime for extracting textile fiber from pine needles was developed, which involves treating the needles at a temperature of 100°C for 40 hours in a solution of NaOH with a concentration of 70 g/l.