Incoming control in processing recycled textile materials

Abstract

Textile waste seems to be useless, but it can be recycled and reused for other, less demanding purposes, integrated into other products we cannot dispense with, such as mattresses, armchairs, cars, various insulation materials etc.). The problem lies in the recycling procedure since by tearing, i.e. by separating into single fibers of used textile materials fibers are damaged. Recycled textile fibers are a very specific textile raw material, which is very difficult to compare with any fiber type. Accordingly, it is not easy to determine which testing methods are to be performed in the incoming control of raw materials and also to which standards as most of the standard is intended for testing specific fiber types, e.g. cotton, wool and silk. In the incoming control of recycled textile raw materials it is necessary to carry out certain basic investigations, such as control of the separation of fibers, since experiences have indicated that the raw material to be used for making nonwovens of specific mass per unit area and acceptable evenness should have a satisfactory fiber portion, i.e. it must not contain too many unseparated elements. Thus, it is necessary to determine the optimal intensity of fiber separation so that the obtained raw material has specific properties necessary for down-stream processing. The properties and how to test them in the incoming control of recycled textile materials should be determined partially, depending on the technological process and the purpose of the products made of recycled fibers.