Topographic modelling of haptic properties of tissue products

14th International Conference on Metrology and Properties of Engineering Surfaces

Rosen, B.-G.^1,2,3 ; Fall, A.^4 ; Rosen, S.^3 ; Farbrot, A.^4 ; Bergström, P.^4

School of Business and Engineering, Halmstad University, PO Box 823, SE-301 18 Halmstad, Sweden^1

Chalmers University of Technology, Göteborg, Sweden^2

Toponova AB, Halmstad, Sweden^3

SCA Hygiene Products AB, Göteborg, Sweden^4

关键词: Light projection;    Multivariate statistics;    Quality of product;    Quality parameters;    Roughness and topography;    Strong correlation;    Tissue products;    Topography measurement;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/483/1/012010/pdf
DOI  :  10.1088/1742-6596/483/1/012010

来源: IOP

【 摘 要 】

The way a product or material feels when touched, haptics, has been shown to be a property that plays an important role when consumers determine the quality of products For tissue products in constant touch with the skin, softness becomes a primary quality parameter. In the present work, the relationship between topography and the feeling of the surface has been investigated for commercial tissues with varying degree of texture from the low textured crepe tissue to the highly textured embossed- and air-dried tissue products. A trained sensory panel at was used to grade perceived haptic «roughness». The technique used to characterize the topography was Digital light projection (DLP) technique, By the use of multivariate statistics, strong correlations between perceived roughness and topography were found with predictability of above 90 percent even though highly textured products were included. Characterization was made using areal ISO 25178-2 topography parameters in combination with non-contacting topography measurement. The best prediction ability was obtained when combining haptic properties with the topography parameters auto-correlation length (Sal), peak material volume (Vmp), core roughness depth (Sk) and the maximum height of the surface (Sz).