Tissue Paper Softness: A Comparison Between Different Experimental Assessment Approaches.

In this work, four different experimental assessment approaches, namely, the Tissue Softness Analyzer (TSA), a Subjective Evaluation (SUB), the Kawabata Evaluation System (KES), and an Optical System (OPT), were used for the evaluation of softness on a set of 29 different tissue paper products. After processing and the interpretation of the results given by each one of the used methods, a procedure was implemented in the current work to make a comparison between them. The procedure consists in tracking the position of the tissue paper products on a ranking table, regardless of what values were obtained through each one of the four used methods independently. This comparison revealed to be very useful in determining the differences verified between methods allowing to conclude which ones were the least and the most concordant, and, at the same time, enabling us to identify interesting cases of tissue paper products on the set that caught our attention for their distinctive characteristics.