Coloristic and antimicrobial behaviour of polymeric substrates using bioactive substances

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Coman, D.^1 ; Vrînceanu, N.^1 ; Oancea, S.^2 ; Rîmbu, C.^3

Lucian Blaga University of Sibiu, Department of Industrial Machinery and Equipment, 10 Victoriei Boulevard, Sibiu

550024, Romania^1

Lucian Blaga University of Sibiu, Department of Agricultural Science and Food Engineering, 5-7 Ion Ratiu Street, Sibiu

550012, Romania^2

Ion Ionescu de la Brad University of Agricultural Sciences and Veterinary Medicine, Faculty of Veterinary Medicine, Public Health Department, 3 Aleea Mihail Sadoveanu, Iai

700489, Romania^3

关键词: Anti-bacterial performance;    Bioactive substances;    Comparative studies;    Long-term effects;    Microbial contamination;    Polymeric substrate;    Polymeric supports;    Technological alternatives;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/3/032003/pdf
DOI  :  10.1088/1757-899X/145/3/032003

来源: IOP

【 摘 要 】

A major concern in reducing microbial contamination of healthcare and hygiene products motivated us to seek viable alternatives in order to create such barriers. The antimicrobial and anti-oxidant effects of natural extracts are well-known, their application onto polymeric supports is still challenging in terms of investigation. To our knowledge, the method of natural dyeing of different polymeric substrates using bioactive substances derived from black currant and green walnut shells, in conjunction with biomordants, and their long term effects have not been very consistently reported. The main objective of the study is based on the comparative study of different polymeric fibrous substrates dyed by means of laboratory scaled classic methodology with extracts from black currant fruits and green walnut shells, with the assistance of conventional and biomordants (copper sulphate, citric and tannic acids). The assistance of biomordant in the dyeing process seems to conduct to improved synergetic colouring and antibacterial performances. The main results demonstrated that the extract of green walnut shells reinforced by the biomordants solutions expressed the best antimicrobial behaviour. The present research is a milestone in the identification of potential technological alternatives applied in dyeing of synthetic and natural textile supports, quantified and controlled by antimicrobial response correlated with colorimetric features.