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W dobie dynamicznego rozwoju wytwarzania produktów przemysłowych oraz opakowań producenci są narażeni na problemy związane z kopiowaniem swoich autorskich pomysłów. Nowoczesne systemy zabezpieczeń związane są z poprawą kontroli jakości oraz ochroną przed bezprawnym i niekontrolowanym handlem.

Cotton cellulose can be cationized with amines and quaternary ammonium compounds in alkaline medium to change fiber surface charge. Such modified cotton adsorbs anionic dyes and auxiliaries due to attractive forces between fiber and compound. Due to crystallinity of polyester fiber, its adsorption is low. Polyester is usually modified by alkaline hydrolysis with cationic compounds as accelerators. For all these reasons, in this paper, the cationization of cotton/polyester blended fabrics was performed. The change of fabric was studied through interface phenomena – zeta potential, moisture management and adsorption of anionic optical brightener. Zeta potential confirmed that the surface charge has been changed. Cationization led to better adsorption of optical brightener and higher capillarity of fabrics.

The polylactide (PLA) is the most common biodegradable material. However, its biodegradation requires hydrolysis of PLA to oligomers or monomers before microbes can act. Hydrolytic degradation of PLA depends on temperature, time and relative humidity. It takes months and years until complete biodegradation. If a catalyst is introduced, i.e. alkali or alcohol, it can be done in weeks. In this article, the alkaline hydrolysis was performed at low temperatures 40-60°C without and with the addition of cationic compound as an accelerator for the purpose of saving energy and time for complete PLA degradation. It has been shown that complete degradation can be achieved in only 10 min at 40°C.

The emergence of intelligent textiles in recent years has highlighted the importance of e-textiles (electronic textiles). Electrically conductive textiles can be found in the form of fabrics, yarns, or fibres textile structures. The electronic yarn (E-yarn) was manufacturing by incorporated tinny surface mount electronic device (SMD) into textile conductive yarn. This paper deals with the electrical resistance and thermal properties of SMD LED embedded stainless steel (SS) E-yarn. The relationship between the current voltage curve and total electrical resistance of the electronic yarn was investigated experimentally. In addition, the analytical finding shows that, as the supply voltage increase, the electrical resistance of conductive yarn significantly increased and the surface temperature of both the SS conductive yarn and E-yarn had increased. Furthermore. From the test result, it can be confirmed that, this electronic yarn was suitable to be used for resistive heating elements and use for possible application in wearable e-textiles heating and a new way of energy saving.