The emtec TSA: reaching optimal process and quality by a clear communication with objective data, 2021 TAPPICon Live (21TAPL)

Four different cells, which are located in the human skin (very high density in the fingertips), are responsible for the tactile sensation of humans. The Pacinian and the Meissner corpuscles, the Merkel cells and the Ruffini bodies. 

The Pacinian corpuscles are located in the lower skin and belong to the fast‐adapting processors. They have their highest sensitivity at around 300Hz. Due to the sensitivity to high frequencies, the Pacinian corpuscles are activated by the fibers on the surface and their stiffness, which at the end is the feeling of softness (micro‐surface variations). 

The Meissner corpuscles are pressure receptors of the glabrous skin. They are concentrated in the finger tips and react to pressure changes between 10 to 50 Hertz. In trials, RA‐sensors1 of apes reacted to changes in the surface of only 4µm – this is of enormous importance for the tactile sense. It plays a big role for example for blind people: reading of the Braille‐alphabet. Because of the highest sensitivity in the range of 10‐50Hz and the moving speed of the hand, the Meissner corpuscles mainly detect the roughness/smoothness (macro‐surface variations) of a product. The macro‐surface variations are influenced by creping and embossing for example. The vibrations in this frequency range are created by the interaction between the papillary lines and the surface structures. 

TAPPI conference proceedings and presentations, technical papers, and publication articles provide technical and management data and solutions on topics covering the Pulp, Paper, Tissue, Corrugated Packaging, Flexible Packaging, Nanotechnology and Converting Industries.

Simply select the quantity, add to your cart and your conference paper, presentation or article will be available for immediate download.