TY - JOUR AB - 3D printing on textile fabrics has been investigated intensively during the last years. A critical factor is the adhesion between the printed polymer and the textile fabric, limiting the potential areas of application. Especially safety-related applications, e.g. stab-resistant textile/polymer composites, need to show reliable adhesion between both components to serve their purpose. Here we investigate the possibility of sandwiching textiles between 3D-printed layers, produced by fused deposition modeling (FDM). We show that adding nubs to the lower 3D-printed layers stabilizes the inner textile fabric and suggest future constructive improvements to further enhance the textile-polymer connection. AU - Özev, Mahmut-Sami AU - Ehrmann, Andrea ID - 2769 IS - 1 JF - Communications in Development and Assembling of Textile Products KW - textile fabrics KW - fused deposition modeling (FDM) KW - composite KW - thermoplastic polyurethane (TPU) KW - cotton KW - aramid TI - Sandwiching textiles with FDM Printing VL - 4 ER - TY - JOUR AB - While shape memory alloys (SMAs) and shape memory polymers (SMPs) can already be found in diverse applications, shape memory textiles are less often used. Nevertheless, they are regularly investigated. Typical ways to produce shape memory textiles (SMTs) are introducing shape memory wires, printing shape memory polymers on them (“4D printing”), or using textile materials such as poly(lactic acid) (PLA) which show shape memory properties on their own. This review gives a brief overview of these technological possibilities and possible applications of shape memory textiles. AU - Ehrmann, Guido AU - Ehrmann, Andrea ID - 1578 IS - 2 JF - Communications in Development and Assembling of Textile Products KW - shape memory properties KW - 3D printing KW - 4D printing KW - polyurethane KW - wrinkle-free KW - design KW - stimulus KW - smart textile KW - recovery TI - Shape memory textiles – technological background and possible applications VL - 2 ER - TY - JOUR AB - Combining textile fabrics with 3D printing has been investigated intensively during the last years. Mostly, research concentrated on the adhesion between both partners of the composite or on the new freedom of design, enabled by combining these techniques. Here, we present examinations of the influence of elastic 3D printed patterns on the elongation and wearing out of elastic textile fabrics as well as on the tribological properties of the textile surface, comparing pure and imprinted textile fabrics. Therefore, thermoplastic polyurethane (TPU) was 3D printed in different patterns on diverse textile fabrics. Our study shows that for a sufficient adhesion, reached by small enough nozzle-fabric distance, elastic 3D printed patterns can indeed improve the surface resistance against wear. AU - Steinmetz, Pia AU - Ehrmann, Andrea ID - 1583 IS - 2 JF - Communications in Development and Assembling of Textile Products KW - 3D printing KW - Thermoplastic polyurethane (TPU) KW - Woven fabric KW - Knitted fabric KW - Martindale test KW - Abrasion TI - Influence of elastic 3D printed polymers on the mechanical properties and tribology of textile fabrics VL - 2 ER - TY - JOUR AB - 3D printing on textile fabrics can be used to create composites with position-dependent mechanical, water-resistant, magnetic or other properties. An important prerequisite to use such composites technologically or for design purposes is a sufficient adhesion between both materials. While previous studies revealed that soft, elastic printing polymers were advantageous to prepare connections with a high adhesion, not much research has been performed yet on the dependence of the adhesion on textile fabric structure, heat post-treatment, and the influence of washing, which is necessary for most applications of such composites. Here we investigate composites from thermoplastic polyurethane (TPU) 3D-printed on two different woven cotton fabrics. Besides the expected strong correlation of the adhesion with the distance between nozzle and printing bed, we find a higher adhesion on the thinner fabric and an increase in the adhesion after one washing cycle. AU - Störmer, Jannik AU - Görmer, Daniel AU - Ehrmann, Andrea ID - 1602 IS - 1 JF - Communications in Development and Assembling of Textile Products KW - 3D printing KW - Thermoplastic polyurethane (TPU) KW - Adhesion KW - Thermal after-treatment KW - Heat press KW - Washing KW - Nozzle-textile distance TI - Influence of washing on the adhesion between 3D-printed TPU and woven fabrics VL - 2 ER -