Influence of fabric pretreatment on adhesion of three-dimensional printed material on textile substrates

Abstract

Adding three-dimensional printed objects on existing surfaces enables creation of multi-material objects with tailored mechanical properties. Especially, the tensile strength of a textile fabric is advantageous in comparison with threedimensional printed polymeric parts, while the latter can increase the stiffness of the composite. The adhesion forces between both material partners, however, are crucial for the reliability of the multi-material object. While several printing and material properties have been shown to influence the adhesion previously, this article concentrates on the possible pretreatment methods for three-dimensional printing on a cotton fabric. In our experiments, we have shown that especially pretreatments which made the textile surface more hydrophobic or more hydrophilic resulted in significant modifications of the adhesion forces. In addition, the adhesion is influenced by the infill orientation, with an orientation of 90°being significantly advantageous compared to 0°. While surface roughness was also shown to depend on the infill angle, no significant differences of the tensile strength or the elongation at break were measured.

Increasing adhesion of 3D printing on textile fabrics by polymer coating

“…Generally, more hydrophilic textile fabrics showed better adhesive properties [13]. A more detailed study of the infl uence of diverse chemical pre-treatments was performed recently, verifying the idea of hydrophilic properties being supportive of increased adhesion for several treatments, while a few outliers indicated that additional eff ects have to be taken into account [5]. A completely diff erent approach which has not yet been reported in the scientifi c literature is coating textile fabrics with a polymer solution prior to the 3D printing process.…”

“…[4]. However, most of these materials and the objects printed from them have insuffi cient mechanical properties for several applications [5,6]. In addition, the printing process is still relatively slow, as compared to die casting.…”

“…A possible solution for this problem can be an additional heat treatment of the whole composite aft er the printing process [9]. Ironing thin polymer/textile composites, on the other hand, was found to counteract the adhesion [5]. Th e extruder and printing bed temperature, in turn, could be used to increase the adhesion [10].…”

Dimensional and Shape Accuracy of Foundry Patterns Fabricated Through Photo-Curing

“…The intensive development of manufacturing processes implies the possibility of their application in a lot of industry branches, e.g. in the aircraft industry, in the automotive industry, construction of components which work under constant loads [6][7][8] and in textile production [9]. Particularly important due to the efficiency of the manufacturing process is the application of additive technology to build foundry patterns, allowing immediate fabrication of the "first cast sample" [10][11][12].…”

A New Method of Printing Multi-Material Textiles by Fused Deposition Modelling (FDM)

“…3D printing on textile surfaces has been investigated allowing creating new multicomponent textiles and new optical properties [5,6]. Here, the adhesion between both materials still remains challenging and has led to further studies to enhance the bonding properties between two diff erent materials [7] due to fabric pre-treatment [8,9]. Furthermore, a study where fi brous materials were embedded in the printing process served as an input for this research [10].…”