The quality of upholstered furniture is currently evaluated through a set of attributes that reflect the „comfort“ of the product. Measurable features are evaluated using the test methods, which include an assessment of the product as a whole or only of the individual materials. Methodology to assess materials in the construction of material compositions has not yet been processed before. This work deals with the issue of a evaluation of the material sets of polyurethane foams and their mutual influence. New methodology has been proposed for evaluating mutual deformation of foams sets that has been named “reciprocal deformation of foam sets” in this work. Using this newly proposed method, selected types of polyurethane foams were assessed, in combination with recycled bonding polyurethane foam-type RE 80. The results of the measurements were evaluated and assembled into the graph in order to create a simple tool for the construction of material composition in the mold layer of upholstered furniture. The graph can easily be deducted; it answers the question of what value of deformation is to be considered in drawing up a set of foam materials and recycled PU foam in the construction of material composition.
Reciprocal deformation of polyurethane foam sets in the construction of upholstered furniture