Natural dye modified hemp fibrous foam for colorimetric NH3 sensing

Zhu, Xia; Zeng, Beini; Tang, Wenyang; Liu, Qingtao; Yu, Zhicai; Cui, Yuming; Wang, Jinfeng

doi:10.1016/j.indcrop.2022.115950

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…To quantitatively assess the coloration effects of wool powder, color yields of padded fabrics were evaluated by measuring their l* (lightness), a* (the component from green to red) and b* (the component from blue to yellow) values. 27 These values steadily increased with an increase in the amount of wool powder loaded on fabrics (Figure 3c−d), demonstrating that wool powder exhibited excellent coloration performance. These findings agreed with the SEM images that the loaded amount of wool powder could be adjusted by changing the wool powder mass ratio in the paste.…”

Section: Color and Colorfastness To Washing Of Wool Powder Treated Fa...mentioning

confidence: 80%

“…Figure a–b shows that the coloration effects gradually deepened as the mass ratio of wool powder paste increased. To quantitatively assess the coloration effects of wool powder, color yields of padded fabrics were evaluated by measuring their l* (lightness), a* (the component from green to red) and b* (the component from blue to yellow) values . These values steadily increased with an increase in the amount of wool powder loaded on fabrics (Figure c–d), demonstrating that wool powder exhibited excellent coloration performance.…”

Section: Resultsmentioning

confidence: 99%

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Scalable Fabrication of Fabrics Dyed with Wool Powder and Its Deodorization Performance

Huang,

Tang,

et al. 2023

ACS Sustainable Chem. Eng.

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Superfine powder obtained from waste natural polymer is a renewable resource that is capable of absorbing odor and being used as pigment for textile finishing. So far, the application of these powder materials has been limited only to only laboratory scale. How to unlock the limitations for continuous production on an industrial scale has not been revealed yet. In this study, we addressed the limitations of using wool powder as finishing agent in water-based paste for textile functionalization by using a pad−dry−cure method. This includes optimizing the formulation of wool powder suspension and producing 100 m long colored textile. Both the functionalized cotton and polyester fabrics effectively showed coloration effects with good washing colorfastness and designed color shades (K/S between 0.02−1.09) through adjustment of the wool powder concentration in the finishing paste. Furthermore, the functionalized fabrics showed almost a doubled odor removal rate toward acetic acid odor than pristine fabrics, indicating their deodorizing ability for air purification and body odor control. The odor adsorption mechanism was further verified by in situ FTIR analysis and DFT calculations. This biodegradable superfine powder from recycled waste resources could be a promising pigment for manufacturing deodorizing textiles with designable patterns on a large scale, not only contributing to the diversification of natural fiber products but also maintaining the sustainable development of the textile industry and environmental purification.

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Section: Color and Colorfastness To Washing Of Wool Powder Treated Fa...mentioning

confidence: 80%

Section: Resultsmentioning

confidence: 99%