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Quantification of the degree of preference for different tissue products based on a hand-felt tissue test panel, TAPPI Journal May 2023

ABSTRACT: In this study, we successfully established a quantification model to determine the preference (PF) for different tissue products based on the results of a hand-felt tissue testing panel. The panel ascertained that products designed with four-ply tissues provided higher total tensile strength (TTS) and hand-felt surface softness (HSS) than did those of the three-ply, two-ply, and single-ply products.When practically tested with a tissue softness analyzer (TSA), the four-ply tissue product had a softness (TSA-HF) advantage; however, in human panel tests, more than half of the participants could not be sure of the hand-felt bulk softness (HBS) of the four-ply tissue product. This was mainly because when using the four-ply tissue, the hand-held test pad gave an overall perception distinctly different from those of the hand-held two- or three-ply products, which also differed from the flattened state of test pieces used in the instrumental softness tests. Users could distinctly feel that a product was safer (better TTS) and more comfortable (higher hand-held surface softness). Thus, the four-ply tissue product was accorded a higher preference.

An evaluation of household tissue softness, TAPPI Journal February 2021

ABSTRACT: This study extends our 2019 paper, a study of the softness of household tissues using a tissue softness analyzer (TSA) and hand-felt panels. It revisits the softness theory of Holger Hollmark by applying a reciprocal matrix approach to measure sheet bulk softness and surface softness, and then make comparisons with the results obtained using a TSA instrument. We ascertained that there was a high correlation of R=0.904 between panel-corrected hand-felt (CHF) softness and TSA softness (TSA-HF); and a low correlation of R=-0.678 between panel-corrected hand-felt surface softness (CHSS) and TSA smoothness (TS-750). Three hunches about TSA measurements were confirmed: 1) Hollmark’s theory was confirmed by a high correlation coefficient (R=0.895) between CHF and CHSS softness, indicating that the two parameters are mutually dependent; 2) TS-750 differs from CHSS and has partial influence on TSA-HF results with a correlation of R = -0.510; and 3) although TS-750 has only limited influences on TSA-HF, further opportunities for their application can be provided using pertinent regression equations.

SetPoint: Tissue Packaging is Changing, Tissue360º Spring/Summer 2020

SetPoint: Tissue Packaging is Changing, Tissue360º Spring/Summer 2020

How to Reduce CO2 Emissions from Tissue Machines, Tissue360º Spring/Summer 2020

How to Reduce CO2 Emissions from Tissue Machines, Tissue360º Spring/Summer 2020

Setpoint: Looking into a Crystal Ball …, Tissue360º Fall/Winter 2024

Sustainability in Production, Forest R&D, People, and Animal Conservation, Tissue360º Fall/Winter 2024

From Fiber to Finished Product: Improving Tissue Manufacturing with an End-to-End Approach, Tissue360º Fall/Winter 2024

Pioneering Green Hydrogen in Tissue Manufacturing, Tissue360º Fall/Winter 2024

Vacuum Optimization: Maximizing Efficiency and Saving Energy, Tissue360º Fall/Winter 2024

APP Tissues International: Onward and Upward in the Global Market, Paper360º November/December 2024