Haptics and Textiles Digital Lab
WEDNESDAY, DECEMBER 13, 2023
9:00 AM - 2:30 PM (ET)
Moderator: Keith Hoover, Black Swan Textiles
9:00 AM Opening Remarks and Presentation:
Fundamentals of Haptics & Textiles – Applying a Digital Handfeel Management Model at Scale—Keith Hoover, Black Swan Textiles
9:30 AM How Do We Experience Touch? Intro to Handfeel Measurements—Alexander Gruener, emtec Electronic GmbH 10:00 AM An Overview of Tactile Comfort of Light Weight Denim Fabrics—Nazli Uren, Dokuz Eylül University
Tactile comfort of a garment is an important criterion that determines consumers’ preferences and has been investigated for almost a century by many researchers. The presentation discusses tactile sensation, components of fabric hand, objective test methods and sensory evaluation techniques together with the scientific findings regarding tactile comfort of light weight denim fabrics.
11:00 AM Break 11:15 AM Possibilities for Evaluating Relations between the Structural and Production Parameters of the Textile Structures and their Haptic Appearance—Yordan Kyosev, Technical University of Dresden
The presentation starts with overview of the different type of textile structures (weft- and warp knitted, woven, nonwoven), their structural levels (fiber, single ply yarns, multu-ply yarn). The haptic relevant parameters at the different structural levels are pointed - yarn twist, fiber length distribution, fiber fineness, bending stiffness of the fibers, density of the textile structure. Finally different techniques for the evaluation of the correlations between the haptic perception and the textile parameters are discussed. Results of large investigations with panel tests, EMTEC testinting device and microscopic analysis will be presented and different methods for mathematical analysis of the correlations like Principal Component Analysis and Fuzzy Logic data sets are discussed.
12:00 PM Lunch Break 12:30 PM Objective Measurement of Haptic Quality Parameters with the emtec TSA Tactile Sensation Analyzer: Explanations of TSA Functions and Live Demonstration—Alexander Gruener, emtec Electronic GmbH
Haptic parameters, such as softness, smoothness or flexibility, which together make the overall haptic impression when touching a fabric’s surface, could not be measured reliably and objectively in the past. There have been several approaches. Some are not as accurate and reliable as such a measurement needs to be, some are too complicated to be used as a tool for daily quality control or process optimization. The emtec TSA Tactile Sensation Analyzer is able to individually measure the basic haptic parameters that determine the overall haptic impression or touch. From these individually measured parameters, a so-called hand feel value can be calculated, which usually shows a correlation to the human expectation of up to almost 100%. The device has already proven its accuracy and reliability in an industry with similar concerns. In the tissue paper industry, the instrument and its results are used as a language, which is used by the different players of the industry to communicate among each other. It is industrial standard and a TAPPI-recommended test method.
To understand the device and how it functions, it is helpful to understand the processes going on in the human hand, which finally lead to the human tactile sensation. The presentation will therefore focus on how we humans feel, the traditional hand test used to determine the haptic quality of textiles, the functional principle of the device and the application in the field.
2:00 PM Q&A / Panel Discussion—Day 1 Speakers 2:30 PM Closing Remarks, Keith Hoover, Black Swan Textiles THURSDAY, DECEMBER 14, 2023
8:55 AM - 2:30 PM (ET)
Moderator: Keith Hoover, Black Swan Textiles
8:55 AM Welcome Back—Keith Hoover, Black Swan Textiles 9:00 AM Human and Instrumental Handfeel Assessment in Industrial Daily Business Conditions—Mohammad Abu-Rous, Lenzing AG, Austria
Handfeel (haptic) properties are a decisive criterion in consumer choice criteria of textiles. It is therefore in the interest of supply chain partners to assess these properties in order to predict the consumer choice. Instrumental methods based on textile physical properties cover part aspects of the rather complex human hand perception. Furthermore, a compromise must be found between precision and broadness of parameters on the one hand, and practicability and measurement speed on the other.
In our experience, physical measurements (Tissue Softness Analyzer, Phabrometer, simple ring pull-through) provided in many cases reliable ranking of fabrics. They are more or less correlated with more sophisticated methods, such as Kawabata Evaluation System (KES) and Fabric Touch Tester (FTT). More concordance of the physical methods was observed on loose flexible structures like knitted fabrics than on rigid thin fabrics like light woven fabrics.
In the case of insufficient concordance, a human reference is needed as ultimate judge. More divergence was observed when the differences between the fabrics are not enough large. As this is the case in daily business, where optimizations of fiber, fabric and treatments take place, it would be difficult to rely on one single instrumental method. More reliable results were obtained by a trained internal handfeel panel, supported by the mentioned instrumental methods.
9:30 AM Measuring the Durable Softness of Cotton—Stephen Payne, Cotton Incorporated
The durable softness of cotton can mechanically be measured, when tested on both sides of a garment, at Zero HLTD, 10HLTD, 20HLTD, and 30HLTD.
10:15 AM Enhancing the Lifetime of Sports T-Shirts through Objective and Subjective Handfeel Measurements—Lars Claussen, adidas
Extending the lifespan of garments is one of the most effective ways of reducing the environmental impact of the apparel industry. Two studies investigating the long-term quality change of sports t-shirts during actual wear and simulated wear through repeated laundering have shown that handfeel plays an important role in extending the lifespan of sportswear. This presentation will share insights from these studies and show how the emtec TSA can be used to measure changes in handfeel perception throughout the life of garments.
11:00 AM Break 11:15 AM From a Cloud Solution for Color to Virtual Haptic Library: A Digital Database for Haptic Evaluation—Magnus Kanholt, Tailr 12:00 PM Lunch Break 12:30 PM Digitization of Samples and Integration into an Online Haptic Library: Live Demonstration—Alexander Gruener, emtec Electronic GmbH 2:00 PM Q&A / Panel Discussion—Day 2 Speakers 2:30 PM Closing Remarks and Adjourn, Keith Hoover, Black Swan Textiles
Haptics and Textiles
December 13, 2023 - December 14, 2023
December 13: 9:00 AM - 2:30 PM (ET)
December 14: 8:55 AM - 2:30 PM (ET)