Antibiosis against Super Bacteria from Natural Dyeing with Elm Bark Extract

Abstract

: In this study, a cotton knit was dyed with elm bark extract; subsequently, the dyed fabric was measured according to the types of mordants and the preprocessing cationizers used. Additionally, antibiosis against super bacteria was examined. The results follow. First, the color of the dyed cotton knit appeared reddish and yellowish for fabrics treated with non-mordants and mordants. When preprocessing with a cationizer was conducted, the dyeing properties were the best. Second. even when mordants were not used for dyeing, color fastness after washing, sweating, and rubbing was generally good Grade 4 and 5. Color fastness after exposure to sunlight was the best Grade 4 for fabric prepared with ferrous sulfate as the mordant. Third. as for antimicrobial properties, or resistance to super bacteria, the growth of bacteria was suppressed in a meaningful way for fabrics treated with non-mordants and mordants, compared to the control group fabric. The dyeing methods with the most powerful antimicrobial effects were dyeing after preprocessing with a cationizer and preparing fabric with copper sulfate as the mordant. The results stated above show that in case of dyeing with elm bark extract, preprocessing of the cotton knit with a cationizer and dying with copper mordant displayed high levels of antimicrobial properties that were useful for resisting super bacteria. Of these the dyeing properties were the best when preprocessing with a cationizer.

Dyeing Performance and Anti-Superbacterial Activity of Cotton Fabrics Dyed with Chamaecyparis obtusa

“…The antibacterial activity against superbacteria was measured via a modification of the bioassay method employed by Choi et al (2015). A cotton fabric sample of 5 × 5 cm 2 size was prepared and placed in a petri dish (SPL, Pocheon, South Korea) [ 33 ]. The cotton fabric was inoculated with MRSA (ATCC 33591) cultured in the BH medium and then incubated in a 37 °C incubator (EYELA, Tokyo, Japan) for 24 h. The bacteria on the cotton fabric were washed with phosphate-buffered saline (PBS) immediately after inoculation at 0 h and after 24 h of culturing, and then spread on the BHI agar plate.…”

Bark Extracts as Multifunctional Finishing Agents for Technical Textiles: A Scientific Review

“…The super bacteria used is methicillin resistant S. aureus (MRSA) ATCC 33591. 24 Pal et al studied the antifungal activity of natural colorants from Malabar Neem (Melia composite) bark on cotton, silk, and wool against five strains of pathogenic fungi. The antifungal activity was effective in cotton fabrics treated with natural dye at concentrations greater than 100 mg/mL.…”