Management of technological changes is responsible not only for introduction of new technologies offering optional product values, but in every development step evaluation of possible hazards is the equal important. Product sustainability is closely linked to environmental hazards of every new technology - development or use of different metal covered or metal ions releasing product may have detrimental effects on people or the environment. In this area have been various studies, the results shows that metal nanoparticles can cause toxicopathy, destroy the beneficial bacterial species, give negative impact on the development of animals and absorbed into the human body, affect the DNA structure. To evaluate level of metal ions presence in water after metal covered textiles washing, the indirect method based on gas discharge visualization and corresponding testing methodology are developed in this research. Data used in article obtained from experiments with cooper particles covered fabric obtained in thermal evaporation process. Experiments were carried out with gas discharge visualization (GDV) camera, using specialized software package and mathematic statistics methods to develop testing methodology which minimize main parameter variations and allow separating dependent variables responding to the metal ions amount in liquid. The overall aim of the work is to find out appropriate method of metal nanoparticle concentration detection and most sustainable method for the copper coatings deposition on textile, which does not pollute the environment, does not harm any living forms and increase product added value. Presented research is directed toward working out fast instruments for technological change management in the field of products and processes introduction/usage where metal ions are released or metal-coated textiles developed. The research is original with the applied gas discharge visualization principles.