Dyeability and Functionality of Wool Fabrics Dyed with Chamaecyparis obtusa Leaf Extract

Ko, Eunsook; Lee, Hyesun; Han, Chung-Hun

doi:10.5850/jksct.2019.43.2.288

Cited by 4 publications

(1 citation statement)

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“…As regards the changes seen in the colors of fabrics after C. obtusa dyeing and mordanting, the a* and the b* values were all positive, suggesting reddish and yellowish colors. It is presumed that the reason for the change in color to reddish and yellowish is the tannin component of the C. obtusa leaves being dyed brown by ionic bonds [ 24 ]. The red value decreased while the yellow value increased in the A1-mordanted fabric, which showed a high dyeing affinity compared to the non-mordanted fabric.…”

Section: Resultsmentioning

confidence: 99%

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

Choi,

Park

2023

Molecules

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In hospitals, doctors’ and patients’ uniforms, as well as bedding and textiles, can be carriers of superbacteria. This study was conducted to test the anti-superbacterial activity of cotton fabrics dyed with extracts of Chamaecyparis obtusa (C. obtusa). The dye was extracted by boiling C. obtusa in water. The test cotton was mordant-dyed three times with the solution at a 1:17 dyeing bath ratio and at an 8.69% (o.w.f) dye concentration for 15 min at 40 °C. C. obtusa dyeing demonstrated a high dyeing affinity in the absence of mordant (K/S value = 14.62). The K/S value of the dyed fabric increased in the order of Cu-mordanted, Fe-mordanted, non-mordanted, and Al-mordanted cotton. Dry cleaning, perspiration and rubbing fastness were determined to be good (Grade 4–5). The dyed fabrics appeared to have a high deodorizing ability compared to the control fabric. They showed not only antibacterial activity against Staphylococcus aureus (S. aureus) and Klebsiella pneumoniae (K. pneumoniae), known to be frequently found in fabrics, but also higher antibacterial activity against the superbacteria methicillin-resistant Staphylococcus aureus (MRSA) (reduced by 99.7%). These results suggest that fabric dyed with C. obtusa extract may be used in clothes and bed linens for inpatients, given its high anti-superbacterial activity. Furthermore, such fabrics may contribute to inhibiting pathogenic infections when used in hospital uniforms or operation gowns for doctors or nurses in hospitals.

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Section: Resultsmentioning

confidence: 99%

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

Choi,

Park

2023

Molecules

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Electrospun Nanofibrous Membranes with Essential Oils for Wound Dressing Applications

Lee

2020

Fibers Polym

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Core/Sheath-Structured Composite Nanofibers Containing Cinnamon Oil: Their Antibacterial and Antifungal Properties and Acaricidal Effect against House Dust Mites

et al. 2020

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This study aimed to fabricate core/sheath-structured composite nanofibers containing cinnamon oil by emulsion electrospinning and to investigate their acaricidal effect on house dust mites as well as their antibacterial and antifungal properties in relation to cinnamon oil concentration in the nanofibers. An oil-in-water emulsion, which comprised cinnamon oil and poly(vinyl alcohol) solution as oil and water phases, respectively, was used to prepare core/sheath-structured nanofibers. The morphology and the inner structure of the electrospun nanofibers were observed by scanning electron microscopy and confocal laser scanning microscopy. Core/sheath-structured nanofibers containing cinnamon oil were successfully prepared by emulsion electrospinning. The composite nanofibers prepared from an emulsion containing 20 wt% of cinnamon oil exhibited a strong acaricidal effect against house dust mites (Dermatophagoides farinae). The composite nanofibers fabricated from an emulsion containing 4.29 wt% of cinnamon oil showed excellent antimicrobial effects against Staphylococcus aureus and a series of fungi that can trigger respiratory- and skin-related diseases. The release profile of cinnamon oil from the core/sheath-structured nanofibers showed a continuous release of functional ingredients over 28 days. Our findings demonstrate that the use of such fibrous structures could be a promising approach for delivering naturally derived bioactive agents in a controlled way.

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Dyeability and Functionality of Wool Fabrics Dyed with Chamaecyparis obtusa Leaf Extract

Cited by 4 publications

References 0 publications

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

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

Electrospun Nanofibrous Membranes with Essential Oils for Wound Dressing Applications

Core/Sheath-Structured Composite Nanofibers Containing Cinnamon Oil: Their Antibacterial and Antifungal Properties and Acaricidal Effect against House Dust Mites

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