Drop Impact on Textile Material: Effect of Fabric Properties

Abstract

This paper presents an experimental study of impact of water drop on a surface in a spreading regime with no splashing. Three surfaces were studied: virgin glass, coating film and woven cotton fabric at different construction parameters. All experiments were carried out using water drop with the same free fall high. Digidrop with high-resolution camera is used to measure the different parameters characterising this phenomenon. Results show an important effect of the height of the free fall on the drop profile and the spreading behaviour. An important drop deformation at the surface impact was observed. Then, fabric construction as the weft count deeply affects the drop impact. For plain weave, an increase of weft count causes a decrease in penetration and increase in the spreading rate. The same result was obtained for coated fabric. Therefore, the impact energy was modified and the drop shape was affected, which directly influenced the spreading rate.

Innovative design and simulation of clothing products for children with atypical changes in conformation and posture

“…Thus, this phenomenon of retraction can be explained by the small air bubble can be entrapped below the drop at impact, owing to the air layer below the drop [35][36][37]. Then, the retraction after impact can be caused by displacements of the capillary waves of the side of the drop toward the centre [38]. The meeting of these waves provokes the capture of air bubble as shown in the figure 5.…”

Development equipment for hydro-jet forming of women designer's headwear

“…The deformation of a textile material, which is being determined at this moment, indicates the total value of absolute deformation. It consists of resilient, elastic and plastic deformation, that influences the process of headwear forming [17][18][19][20].…”

Impact of Fabric Construction on Adsorption and Spreading of Liquid Contaminations

“…In research on the speed of liquid droplets through the textile surfaces, the findings were that the rate of water transfer through the material greatly depends on the structural properties of the fabric, indicating that in case of fabrics with more floating the water transfer through the material is higher [ 11 ]. Surface properties of textile material affect the shape and speed of spread of the liquid droplet [ 12 ].…”