The purpose of the research was to measure the increase in the binding of inclusion complexes β-cyclodextrin-peppermint oil (β-CD_PM) to cellulose in cotton and cotton/polyester material with BTCA as the crosslinking agent by applying an ultrasonic bath at room temperature and a frequency of 80 kHz for 10 min. After sonication, the samples were left in a bath for 24 h after which they were dried, thermocondensed and subjected to a number of wash cycles. The treated samples were analysed with Attenuated total reflection (ATR) units heated up to 300 °C (Golden Gate (FTIR-ATR)) to monitor chemical changes indicative of crosslinking, while physico-chemical changes in the samples were monitored by using Fourier transform infrared spectroscopy (FTIR-ATR). Mechanical properties were measured according to EN ISO 13934-1:1999, and coloristic changes were evaluated by the whiteness degree according to CIE (WCIE) and the yellowing index (YI), while antimicrobial activity was determined according to AATCC TM 147-2016. The results show a physico-chemical modification of the UZV-treated cellulosic material. Moreover, partial antimicrobial efficacy on Gram-negative bacteria was confirmed for treated fabrics.
Considering that textile dust can cause many problems in specific environments, there is a need for low particle release textiles. Usually this means using disposable textiles, but in an effort to reduce the amount of waste that such products generate, the aim of our research was to investigate possibilities of using multiple-use fabrics as an alternative. For the purposes of this study, a standard method for testing particle release from nonwovens had to be adapted in order to acquire reliable data on testing woven fabrics. Statistical analysis showed considerably more precise results after prolongation of testing time from 5 min (standardized) to 30 min (modified). Examination of particle release from cotton fabric after multiple washing and drying cycles showed increase in smaller particles count (5 µm) after 10 cycles.
1 September 2018 in Fibres & Textiles in Eastern Europe
The impact of the pre-treatment of cellulose material in NaOH solution and of microwave radiation on the mechanism ofcrosslinking beta-cyclodextrin with cellulose was investigated in this paper. Citric acid and Na-hypophosphite as catalysts were applied for better crosslinking. Inclusion compounds with tea tree essential oil and cyclodextrines grafted onto cotton fabric were made in order to verify that cavities were available for inclusion compounds. The permanence of beta-CD on the cellulose fabrics treated was tested by ISO 6330:2012. The properties and structure of the materials treated were characterised by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The breakingAwe and mechanical damage of the materials were determined according to EN ISO 13934-1:1999. The results indicated better bonding between cellulose and 11-cyclodextrin where microwave treatment was applied, the phenomenon of which is ofgreat importance for long lasting wash durability. In order to quantify the odour releasing behaviour of beta-CD treated cellulose fabrics, olfactometric determination of the intensity of odour was undertaken.