Thickness Changes in Recycled Fiber Assemblies Made from Industrial Waste of Sweater Products after Repeated Compression

抄録

Thickness changes in model futons contains two kinds of recycled fiber assemblies made from knitted sweaters fabrics were evaluated by the repeated compression test. Initial thickness under a constant weight for the recycled fiber assemblies was smaller than for pure wool and wool-blended samples. There were less reduction in thickness of the model futons filled with recycled fiber assemblies compared with the model futons filled with wool fiber assemblies during the repeated compression test. The yarns remained in the recycled fiber mass contributed to the less reduction in thickness of model futons. For the wool blend recycled sample, the compression rigidity was small compared with that of unused wool and wool-blended fiber assemblies, because recycled fiber assemblies made from sweaters consist of relatively fine wool fibers. The recycled sample showed less reduction in thickness of model futons and expected to be soft during use. It was confirmed that this material was suitable for the filling of futons and cushions.