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This paper’s research presents the possibility of batch dyeing three-dimensional printed acrylonitrile/butadiene/styrene (ABS) with disperse dyestuff. The aim of this investigation is achieving a wide range of hues and colour effects for 3D ABS materials. The 3D process encompasses a wide range of applications, primarily because of the large number of available materials for the production of products. ABS was selected because of its good balance of properties, toughness/strength/temperature resistance, coupled with its ease of moulding and a high quality surface finish. The applied method has provided very good results according to the CIELab colour parameters range, and rubbing fastness.

In this paper, the impact of the 3D printing parameter on coloristic values of the prints has been analyzed. 3D samples are made of acrylonitrile / butadiene / styrene (ABS) polymers, based on a fused filament fabrication principle (FDM / FFF). The influence of certain 3D print parameters on the functional and mechanical properties of 3D print objects is undeniable, but little research is devoted to the importance of color and the influence of print parameters on the appearance and reproduction of 3D prints color. Therefore, the focus of the experimental part of this paper is precisely on the analysis of the relationship between the 3D printing process parameters and the coloristic values of the surface obtained. Objective color characterization based on spectrophotometric measurements and color difference calculations for the equally colored 3D surface but with the difference in temperature and thickness of the printing layer, were obtained according to the CIE system.

The most important phase in textile finishing processes is adsorption of chemical substances and compounds on textile materials surface and wettability as well. Interface phenomena happen between liquid and solid phase, like water solution and textile material, resulting in change of textile material surface free energy. Electrokinetic phenomena, as zeta potential and specific amount of surface charge, characterize electric charge of textile material, while contact angle characterize its wettability. The conventional processes of polyester modification, hydrolysis and aminolysis, improve properties of finished material but pollute the waste water as well. For that reason, nowadays the alternative procedures are investigated, such are treatments using ultrasound or different enzymes - lipase, catalase, etc. Therefore, in this paper the electrokinetic properties of polyester fabric after pre-treatment with enzymes - lipases ; commercial lipase Company BioCatalysts origin from Candida cylindracea, lipase, and laboratory obtained from Penicilium roqueforti is researched. The zeta potential, isoelectric point (IEP), a point of zero charge (PZC), the specific amount of surface charge, contact angle and water adsorption were determined on such treated polyester fabrics.